Consulta: subjectFacets:"Development"
Registros recuperados: 326
Data/hora: 05/06/2024 18:33:21

Beyond taxonomy: prospects for understanding morphological diversity in the grasses (Poaceae)
Provedor de dados: 66
Autores: Kellogg,Elizabeth A.
The grass family (Poaceae) is unusually well known taxonomically, with over 10,000 described species. These are characterized and classified according to a variety of morphological characters, particular those of the inflorescence and the spikelet but also a wealth of micromorphological and moleculary characters. Much data on the family is accessible electronically. Available phylogenies have identified 12 major lineages that are classified as subfamilies; within these subfamilies, especially for subfamily Panicoideae, the phylogeny is becoming increasingly clear. Developmental studies focus on the activity and fate of meristems throughout the plant, and illustrate how adult morphology arises. Analyses of quantitative trait loci (QTL) verify that some...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Poaceae; Phylogeny; Taxonomy; Development; Quantitative genetics; Gene expression.
Ano: 2006
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932006000100001

Análisis de los factores de éxito y fracaso de las cooperativas beneficiadas por el fondo de apoyo a proyectos productivos agrarios (2004, 2005 y 2006), en el estado de Guanajuato.
Provedor de dados: 32
Autores: León Robles, María Isabel.
En el estado de Guanajuato, el cooperativismo ha sido promovido por medio de programas oficiales con el objetivo de impulsar el desarrollo rural, a través de proyectos productivos de explotación común para grupos organizados. Tal es el caso de la Secretaría de Reforma Agraria que a través del Fondo de Apoyo a Proyectos Productivos Agrarios, ha beneficiado a grupos organizados no posesionarios de tierra social o privada. Bajo este programa en el 2004, 2005 y 2006 se beneficiaron cooperativas con apoyo financiero para la puesta en marcha de proyectos productivos agropecuarios. En este sentido, la investigación describe y analiza, mediante el uso del estudio de caso, los factores que han facilitado el éxito y aquellos que han conducido al fracaso a estas...
Palavras-chave: Cooperativas; Desarrollo; Actores; Sujetos sociales; Fondo de apoyo a proyectos productivos agrarios; Cooperative system; Development; Social actors and subjects; Agriculture productive; Projects Support Fund; EDAR; Maestría; Estrategias para el Desarrollo Agrícola Regional.
Ano: 2010
URL: http://hdl.handle.net/10521/286

Estomas en hojas y anatomía de xilema en tallo de lima Persa en diferentes portainjertos
Provedor de dados: 32
Autores: Berdeja Arbeu, Raúl.
En cítricos existen pocos trabajos en donde se estudia el efecto de los portainjertos en las características estomáticas  en hojas de lima 'Persa' y anatomía de xilema de los portainjertos y lima 'Persa' y su correlación con vigor de planta, por lo que se realizaron dos experimentos.  En el primero se estudió la combinación lima 'Persa' en 11 portainjertos cítricos (citranges 'C32', 'C35', 'Benton', 'Carrizo', 'Florida' y 'Morton', los mandarinos 'Amblicarpa' y 'Cleopatra', limón 'Volkameriano', 'Flying Dragon' y naranjo 'Agrio' como testigo), los portainjertos modificaron el número de estomas (287 hasta 331 por mm2), células epidérmicas (2871 a 2269 por mm2), índice estomático (8.95 a 9.86) y tamaño de estomas (23.24 a 25.95 µm) y presentan diferencias...
Tipo: Tesis
Palavras-chave: Citrus latifolia; Portainjertos; Estomas; Anatomía de xilema; Doctorado; Fruticultura; Citrus latifolia; Rootstocks; Stomata; Xylem anatomy; Development.
Ano: 2009
URL: http://hdl.handle.net/10521/1366

Fertilización fosfatada en chile guajillo (Capsicum annuum L.) y su interacción con hongos micorrízicos arbusculares.
Provedor de dados: 32
Autores: Lucas Santoyo, Luis Gustavo.
Se evaluó el efecto de la inoculación de una mezcla de hongos micorrízicos arbusculares (HMA) compuesta por Rhizophagus intraradices, Glomus albidum, Claroideoglomus claroideum, Rhizophagus diaphanus, Acaulospora laevis, Glomus sp.1, Funneliformis geosporum, Glomus sinuosum, Acaulospora denticulata, Glomus sp.2, Glomus sp.3 y Glomus sp.4 en chile guajillo (Capsicum annuum L.) fertilizado con diferentes dosis de fósforo (0, 25, 50 y 75 kg ha-1). El nitrógeno y potasio se mantuvieron constantes (230 y 150 kg ha-1 respectivamente) en todos los tratamientos. Se usó semilla proveniente de la comunidad Nigromante, Zacatecas, y suelo con bajo contenido de fósforo (5 mg kg-1 de P-Olsen) colectado en Tequexquinahuac, Estado de México. Las evaluaciones para altura...
Palavras-chave: Chile guajillo; Hongos micorrízicos arbusculares; Fósforo; Desarrollo; Rendimiento; Arbuscular mycorrhizal fungi; Phosphorus; Development; Performance; Maestría; Edafología.
Ano: 2011
URL: http://hdl.handle.net/10521/515

Consecuencias de la incorporación de la industria del vestido y la confección como estrategia de desarrollo en la región de Tehuacán, Puebla, México.
Provedor de dados: 32
Autores: Múñiz Montero, Isabel.
Las empresas trasnacionales han llevado sus procesos productivos intensivos en la modalidad de maquilas a los espacios rurales, con la finalidad de abaratar sus costos de producción y aumentar sus utilidades. El objetivo de la investigación fue analizar el impacto de la industria del vestido y la confección (en sus rubros trasnacional, nacional y clandestino) en el ámbito social y privado de los trabajadores, sin perder de vista el contexto regional general, evaluando la factibilidad del sistema maquilador como estrategia de desarrollo. El trabajo de campo se realizó en una región construida con cuatro municipios de Tehuacán, Puebla. Se implementó una metodología mixta donde se emplearon técnicas cuantitativas y cualitativas. Se concluye que la región y la...
Palavras-chave: Ciclos de Explotación Familiar; Desarrollo; Explotación; Explotación Familiar Continua; Maquila Textil; Continuous Family Farm; Development; Exploration; Family Farm Cycles; Textile Industry; Estrategias para el Desarrollo Agrícola Regional; EDAR; Doctorado.
Ano: 2014
URL: http://hdl.handle.net/10521/2232

Importancia económica y social del turismo religioso en el desarrollo rural: caso San Miguel del Milagro, Nativitas, Tlaxcala.
Provedor de dados: 32
Autores: Mota Vargas, José Alejandro.
El turismo en el mundo, específicamente el cultural y religioso han crecido de manera importante en las últimas décadas no solo en el número de turistas sino también en el aporte económico a la sociedad. Paralelamente a este crecimiento, existen sectores como el agrícola que se encuentran en crisis y ante esta situación las familias rurales tienden a incorporarse a actividades distintas y una de esas actividades es el turismo religioso en el que destacan las peregrinaciones y las fiestas religiosas. El objetivo de la investigación es categorizar los santuarios religiosos de México y analizar la derrama económica de los peregrinos, en el Santuario de San Miguel del Milagro en Nativitas, Tlaxcala. Para la realización de la investigación se realizó una...
Palavras-chave: Derrama económica; Desarrollo; Economic flow; Development; Estrategias para el Desarrollo Agrícola Regional; EDAR; Maestría; Peregrinación; Fiestas religiosas; Pilgrimage; Religious festivals.
Ano: 2012
URL: http://hdl.handle.net/10521/771

Los medios de vida de la comunidad rural Las Lomas de Tacojalpa, Minatitlán Veracruz.
Provedor de dados: 32
Autores: Gallegos Luría, Jorge Rogelio.
La pobreza es uno de los problemas que incide en muchas comunidades rurales de México. Las Lomas de Tacojalpa en Minatitlán, Ver., no escapa a esta situación. A nivel mundial una metodología empleada es la de Medios de Vida Sostenibles (MVS). Esta investigación utilizo el marco de MVS  para analizar los medios de vida y estrategias empleadas para hacer frente a la pobreza en que se encuentran inmersos los hogares de la comunidad rural de Las Lomas. El objetivo fue analizar el contexto de vulnerabilidad y la forma en que lo enfrentan los hogares de la comunidad e identificar la fortalezas de los activos o capitales; humano, social, natural, físico y financiero a los que tienen acceso. Se utilizaron métodos cualitativos y cuantitativos  para recabar la...
Palavras-chave: Sustentabilidad; Pobreza; Vulnerabilidad; Capitales; Estrategias; Sustainable livelihoods; Sustainability; Poverty; Vulnerability; Capitals; Strategies; Development; Producción Agroalimentaria en el Trópico; Maestría; Medios de vida sostenibles.
Ano: 2012
URL: http://hdl.handle.net/10521/765

Efecto de los sustratos en el cultivo del tomate (Lycopersicon esculentum Mill) bajo condiciones de invernadero.
Provedor de dados: 32
Autores: Ortega Martínez, Luis Daniel.
El tomate en el municipio de Chignahuapan Puebla, es el principal cultivo producido bajo condiciones de invernadero, los sistemas de producción de esta hortaliza se han ido diversificando con el fin de incrementar el rendimiento, incorporando tecnologías novedosas como cubiertas plásticas, riego por goteo e hidroponía. Uno de los principales factores que determinan el éxito del cultivo es el sustrato pues constituye el medio en que se desarrollaran las raíces las cuales tienen gran influencia en el crecimiento y desarrollo. En este trabajo se evaluó el efecto de los sustratos aserrín, composta, tierra agrícola, tezontle así como la mezcla entre ellos a un volumen de 1:1 en la producción de plántulas y en el crecimiento y desarrollo del tomate bajo...
Palavras-chave: Lycopersicon esculentum Mill; Sustrato; Plántulas; Crecimiento; Desarrollo; Substrate; Seedling growth; Development; Maestría; EDAR; Desarrollo Agrícola Regional.
Ano: 2010
URL: http://hdl.handle.net/10521/70

Desarrollo de un producto a base de neem (Azadirachta indica) para el control de Varroa destructor.
Provedor de dados: 32
Autores: González Gómez, Rebeca.
Se estudió el efecto del extracto oleoso de neem (A. indica) en el control de V. destructor. La investigación estuvo encaminada a explorar los efectos que causa el neem tanto a V. destructor como a Apis mellifera, donde la colonia de abejas se observó como un superorganismo. En la primera parte de la investigación se corroboraron en laboratorio los efectos de toxicidad y repelencia del neem en el ácaro, observados en estudios previos; se observó que 2.64, 5.28, 10.56 y 21.12% de extracto de neem presentaron alta estabilidad en cuanto al efecto repelente; y 21.12% impidió que 98% de las varroas se posaran sobre pupas de abejas, lo que llevó a 100% de mortalidad de varroa en 72 h. La segunda etapa estuvo orientada a determinar los efectos del neem sobre...
Palavras-chave: Azadirachta indica; Apis mellifera; Control alternativo; Abejas; Desarrollo; Alternative control; Honey bees; Development; Doctorado; Entomología y Acarología.
Ano: 2010
URL: http://hdl.handle.net/10521/200

Estomas en hojas y anatomía de xilema en tallo de lima Persa en diferentes portainjertos
Provedor de dados: 32
Autores: Berdeja Arbeu, Raúl.
En cítricos existen pocos trabajos en donde se estudia el efecto de los portainjertos en las características estomáticas  en hojas de lima 'Persa' y anatomía de xilema de los portainjertos y lima 'Persa' y su correlación con vigor de planta, por lo que se realizaron dos experimentos.  En el primero se estudió la combinación lima 'Persa' en 11 portainjertos cítricos (citranges 'C32', 'C35', 'Benton', 'Carrizo', 'Florida' y 'Morton', los mandarinos 'Amblicarpa' y 'Cleopatra', limón 'Volkameriano', 'Flying Dragon' y naranjo 'Agrio' como testigo), los portainjertos modificaron el número de estomas (287 hasta 331 por mm2), células epidérmicas (2871 a 2269 por mm2), índice estomático (8.95 a 9.86) y tamaño de estomas (23.24 a 25.95 µm) y presentan diferencias...
Tipo: Tesis
Palavras-chave: Citrus latifolia; Portainjertos; Estomas; Anatomía de xilema; Desarrollo index words: Citrus latifolia; Rootstocks; Stomata; Xylem anatomy; Development.
Ano: 2012
URL: http://hdl.handle.net/10521/1034

El sector de bienestar individual integral de salud en el desarrollo endógeno de Tepexi de Rodríguez, Puebla.
Provedor de dados: 32
Autores: Miranda Trejo, Gabriel.
El desarrollo implica mucho más que los aspectos económicos. El concepto involucra además cuestiones sociales como educación, vivienda, servicios y salud, entre otros; en general todo aquello que tiene relación con el bienestar de los integrantes de la sociedad. La salud es un importante indicador del grado de desarrollo y bienestar. Las unidades familiares, particularmente las indígenas, establecen estrategias particulares para el cuidado y recuperación de su salud, basándose en sus conocimientos tradicionales, recursos naturales y económicos. Para incrementar el bienestar y el desarrollo, es necesario conocer el sistema de bienestar individual de salud en las zonas rurales de origen indígena, al igual que las estrategias de vida a fin de integrarlas en...
Palavras-chave: Desarrollo; Estrategias de salud; Medicina tradicional; Sistema de bienestar individual de salud; Development; Health strategies; System of Individual Well-being of Health; Traditional medicine; EDAR; Estrategias para el Desarrollo Agrícola Regional; Doctorado.
Ano: 2013
URL: http://hdl.handle.net/10521/2110

Participación de mujeres en proyectos productivos y cambios en las relaciones de género y las identidades masculinas y femeninas, en Tetela de Ocampo, Puebla
Provedor de dados: 32
Autores: Arellano Abasolo, Antonio.
En México recientemente, se han impulsado programas de desarrollo, dirigidos al medio rural, debido a que es ahí donde se encuentran más acentuados los problemas de pobreza y marginación. En algunos de éstos  programas se dirigen apoyos a grupos de mujeres organizados. El objetivo de la  investigación fue conocer y analizar los cambios percibidos en las relaciones de  género e identidades  de hombres y mujeres asociados a la participación de éstas en tres proyectos productivos. Los cuales se ubican en las comunidades de Tetela y San Nicolás, en el municipio de Tetela de Ocampo y, en el  municipio de Cuautempan, en la Sierra Norte de Puebla. La población participante en el estudio es mestiza y del grupo étnico náhuatl. En la metodología empleada se incluyen...
Palavras-chave: Género; Identidad; Etnia; Masculinidad; Desarrollo rural Gender; Identity; Masculinity; Development; Rural; Indigenous.
Ano: 2012
URL: http://hdl.handle.net/10521/832

Participación de mujeres en proyectos productivos y cambios en las relaciones de género y las identidades masculinas y femeninas, en Tetela de Ocampo, Puebla
Provedor de dados: 32
Autores: Arellano Abasolo, Antonio.
En México recientemente, se han impulsado programas de desarrollo, dirigidos al medio rural, debido a que es ahí donde se encuentran más acentuados los problemas de pobreza y marginación. En algunos de éstos  programas se dirigen apoyos a grupos de mujeres organizados. El objetivo de la  investigación fue conocer y analizar los cambios percibidos en las relaciones de  género e identidades  de hombres y mujeres asociados a la participación de éstas en tres proyectos productivos. Los cuales se ubican en las comunidades de Tetela y San Nicolás, en el municipio de Tetela de Ocampo y, en el  municipio de Cuautempan, en la Sierra Norte de Puebla. La población participante en el estudio es mestiza y del grupo étnico náhuatl. En la metodología empleada se incluyen...
Palavras-chave: Género; Identidad; Etnia; Masculinidad; Desarrollo rural Gender; Identity; Masculinity; Development; Rural; Indigenous.
Ano: 2012
URL: http://hdl.handle.net/10521/850

Fertilización fosfatada en chile guajillo (Capsicum annuum L.) y su interacción con hongos micorrízicos arbusculares.
Provedor de dados: 32
Autores: Lucas Santoyo, Luis Gustavo.
Se evaluó el efecto de la inoculación de una mezcla de hongos micorrízicos arbusculares (HMA) compuesta por Rhizophagus intraradices, Glomus albidum, Claroideoglomus claroideum, Rhizophagus diaphanus, Acaulospora laevis, Glomus sp.1, Funneliformis geosporum, Glomus sinuosum, Acaulospora denticulata, Glomus sp.2, Glomus sp.3 y Glomus sp.4 en chile guajillo (Capsicum annuum L.) fertilizado con diferentes dosis de fósforo (0, 25, 50 y 75 kg ha-1). El nitrógeno y potasio se mantuvieron constantes (230 y 150 kg ha-1 respectivamente) en todos los tratamientos. Se usó semilla proveniente de la comunidad Nigromante, Zacatecas, y suelo con bajo contenido de fósforo (5 mg kg-1 de P-Olsen) colectado en Tequexquinahuac, Estado de México. Las evaluaciones para altura...
Palavras-chave: Chile guajillo; Hongos micorrízicos arbusculares; Fósforo; Desarrollo; Rendimiento; Arbuscular mycorrhizal fungi; Phosphorus; Development; Performance; Maestría; Edafología.
Ano: 2011
URL: http://hdl.handle.net/10521/515

Participación de mujeres en proyectos productivos y cambios en las relaciones de género y las identidades masculinas y femeninas, en Tetela de Ocampo, Puebla
Provedor de dados: 32
Autores: Arellano Abasolo, Antonio.
En México recientemente, se han impulsado programas de desarrollo, dirigidos al medio rural, debido a que es ahí donde se encuentran más acentuados los problemas de pobreza y marginación. En algunos de éstos  programas se dirigen apoyos a grupos de mujeres organizados. El objetivo de la  investigación fue conocer y analizar los cambios percibidos en las relaciones de  género e identidades  de hombres y mujeres asociados a la participación de éstas en tres proyectos productivos. Los cuales se ubican en las comunidades de Tetela y San Nicolás, en el municipio de Tetela de Ocampo y, en el  municipio de Cuautempan, en la Sierra Norte de Puebla. La población participante en el estudio es mestiza y del grupo étnico náhuatl. En la metodología empleada se incluyen...
Tipo: Tesis
Palavras-chave: Género; Identidad; Etnia; Masculinidad; Desarrollo rural; Maestría; EDAR; Estrategias para el Desarrollo Agrícola Regional; Gender; Identity; Masculinity; Development; Rural; Indigenous.
Ano: 2009
URL: http://hdl.handle.net/10521/1223

Desarrollo de un producto a base de neem (Azadirachta indica) para el control de Varroa destructor.
Provedor de dados: 32
Autores: González Gómez, Rebeca.
Se estudió el efecto del extracto oleoso de neem (A. indica) en el control de V. destructor. La investigación estuvo encaminada a explorar los efectos que causa el neem tanto a V. destructor como a Apis mellifera, donde la colonia de abejas se observó como un superorganismo. En la primera parte de la investigación se corroboraron en laboratorio los efectos de toxicidad y repelencia del neem en el ácaro, observados en estudios previos; se observó que 2.64, 5.28, 10.56 y 21.12% de extracto de neem presentaron alta estabilidad en cuanto al efecto repelente; y 21.12% impidió que 98% de las varroas se posaran sobre pupas de abejas, lo que llevó a 100% de mortalidad de varroa en 72 h. La segunda etapa estuvo orientada a determinar los efectos del neem sobre...
Palavras-chave: Azadirachta indica; Apis mellifera; Control alternativo; Abejas; Desarrollo; Alternative control; Honey bees; Development; Doctorado; Entomología y Acarología.
Ano: 2010
URL: http://hdl.handle.net/10521/200

Importancia económica y social del turismo religioso en el desarrollo rural: caso San Miguel del Milagro, Nativitas, Tlaxcala.
Provedor de dados: 32
Autores: Mota Vargas, José Alejandro.
El turismo en el mundo, específicamente el cultural y religioso han crecido de manera importante en las últimas décadas no solo en el número de turistas sino también en el aporte económico a la sociedad. Paralelamente a este crecimiento, existen sectores como el agrícola que se encuentran en crisis y ante esta situación las familias rurales tienden a incorporarse a actividades distintas y una de esas actividades es el turismo religioso en el que destacan las peregrinaciones y las fiestas religiosas. El objetivo de la investigación es categorizar los santuarios religiosos de México y analizar la derrama económica de los peregrinos, en el Santuario de San Miguel del Milagro en Nativitas, Tlaxcala. Para la realización de la investigación se realizó una...
Palavras-chave: Derrama económica; Desarrollo; Economic flow; Development; Estrategias para el Desarrollo Agrícola Regional; EDAR; Maestría; Peregrinación; Fiestas religiosas; Pilgrimage; Religious festivals.
Ano: 2012
URL: http://hdl.handle.net/10521/771

Efecto de los sustratos en el cultivo del tomate (Lycopersicon esculentum Mill) bajo condiciones de invernadero.
Provedor de dados: 32
Autores: Ortega Martínez, Luis Daniel.
El tomate en el municipio de Chignahuapan Puebla, es el principal cultivo producido bajo condiciones de invernadero, los sistemas de producción de esta hortaliza se han ido diversificando con el fin de incrementar el rendimiento, incorporando tecnologías novedosas como cubiertas plásticas, riego por goteo e hidroponía. Uno de los principales factores que determinan el éxito del cultivo es el sustrato pues constituye el medio en que se desarrollaran las raíces las cuales tienen gran influencia en el crecimiento y desarrollo. En este trabajo se evaluó el efecto de los sustratos aserrín, composta, tierra agrícola, tezontle así como la mezcla entre ellos a un volumen de 1:1 en la producción de plántulas y en el crecimiento y desarrollo del tomate bajo...
Palavras-chave: Lycopersicon esculentum Mill; Sustrato; Plántulas; Crecimiento; Desarrollo; Substrate; Seedling growth; Development; Maestría; EDAR; Desarrollo Agrícola Regional.
Ano: 2010
URL: http://hdl.handle.net/10521/70

Análisis de factibilidad técnico social para la creación de un centro de investigación en desarrollo rural en el norte del país, Matagalpa-Jinotega, 2010.
Provedor de dados: 32
Autores: Mercado García, Ruth María.
En la región, Matagalpa y Jinotega,  se genera información de diferentes temáticas, técnicas agropecuarias, comercialización,  salubridad, protección del medio ambiente, entre otras, pero la  información es escasa,  dispersa  y no es  completamente accesible  a la población, no existe en la región un centro donde se gestione, procese y difunda investigación sobre los diferentes procesos de desarrollo rural. Ésta investigación tiene como objetivo identificar las organizaciones de promoción al desarrollo rural en la región, Matagalpa y Jinotega, sus limitantes  técnicas y organizativas, en la consecución de sus objetivos, que justifique la potencial demanda para la creación de un Centro de Investigación Multidisciplinaria en Desarrollo Rural. Se aplicó una...
Palavras-chave: Desarrollo; Investigación; Conocimiento; Centro de investigación; Development; Research; Knowledge and Research Center; EDAR; Estrategías para el Desarrollo Agrícola Regional; Maestría Tecnológica; Desarrollo Rural Territorial Sustentable CP-UNAN.
Ano: 2010
URL: http://hdl.handle.net/10521/361

An integrated framework for sustainable development goals
Provedor de dados: 7
Autores: Griggs, David; Monash Sustainability Institute, Monash University; dave.griggs@monash.edu; Stafford Smith, Mark; CSIRO Climate Adaptation Flagship; mark.staffordsmith@csiro.au; Gaffney, Owen; International Geosphere-Biosphere Programme; owen.gaffney@igbp.kva.se; Glaser, Gisbert; International Council for Science; gisbert.glaser@icsu.org; Kanie, Norichika; Tokyo Institute of Technology; United Nations University Institute of Advanced Studies; kanie@valdes.titech.ac.jp; Noble, Ian; Notre Dame Global Adaptation Index; Monash Sustainability Institute, Monash University; iannoble@me.com; Steffen, Will; Fenner School of Environment and Society, Australian National University; Stockholm Resilience Centre, Stockholm University; will.steffen@anu.edu.au; Shyamsundar, Priya; South Asian Network for Development and Environmental Economics; priyas@sandeeonline.org.
The United Nations (UN) Rio+20 summit committed nations to develop a set of universal sustainable development goals (SDGs) to build on the millennium development goals (MDGs) set to expire in 2015. Research now indicates that humanity&amp;#8217;s impact on Earth&amp;#8217;s life support system is so great that further global environmental change risks undermining long-term prosperity and poverty eradication goals. Socioeconomic development and global sustainability are often posed as being in conflict because of trade-offs between a growing world population, as well as higher standards of living, and managing the effects of production and consumption on the global environment. We have established a framework for an evidence-based architecture for new goals...
Tipo: Peer-Reviewed Insight
Palavras-chave: Development; Environment; Sustainability; Sustainable development; Sustainable development goals.
Ano: 2014

Education, Vulnerability, and Resilience after a Natural Disaster
Provedor de dados: 7
Autores: Frankenberg, Elizabeth; Duke University; e.frankenberg@duke.edu; Sikoki, Bondan; SurveyMeter; bsikoki@gmail.com; Sumantri, Cecep; SurveyMeter; sumantri.2011@gmail.com; Suriastini, Wayan; SurveyMeter; suriastini@gmail.com; Thomas, Duncan; Duke University; d.thomas@duke.edu.
The extent to which education provides protection in the face of a large-scale natural disaster is investigated. Using longitudinal population-representative survey data collected in two provinces on the island of Sumatra, Indonesia, before and after the 2004 Indian Ocean tsunami, we examine changes in a broad array of indicators of well-being of adults. Focusing on adults who were living, before the tsunami, in areas that were subsequently severely damaged by the tsunami, better educated males were more likely to survive the tsunami, but education is not predictive of survival among females. Education is not associated with levels of post-traumatic stress among survivors 1 year after the tsunami, or with the likelihood of being displaced. Where education...
Tipo: Peer-Reviewed Reports
Palavras-chave: Development; Disaster; Education; Resilience; Vulnerability.
Ano: 2013

Balancing Development and Conservation? An Assessment of Livelihood and Environmental Outcomes of Nontimber Forest Product Trade in Asia, Africa, and Latin America
Provedor de dados: 7
Autores: Kusters, Koen; Center for International Forestry Research (CIFOR); k.kusters@cgiar.org; Achdiawan, Ramadhani; Center for International Forestry Research (CIFOR); r.achdiawan@cgiar.org; Belcher, Brian; Center for International Forestry Research (CIFOR); b.belcher@cgiar.org.
This article addresses the question, to what extent and under which conditions nontimber forest product (NTFP) trade leads to both livelihood improvement and forest conservation. We based the analysis on a standardized expert-judgment assessment of the livelihood and environmental outcomes of 55 cases of NTFP trade from Asia, Africa, and Latin America. The results show that NTFP trade benefits several components of peoples' livelihoods, but may increase inequality between households. Involvement of women in the production-to-consumption system (PCS) tends to have a positive impact on intrahousehold equity. In 80% of the cases, the commercial production of NTFPs does not enable people to make financial investments to increase quality and quantity of...
Tipo: Peer-Reviewed Reports
Palavras-chave: Assessment; Conservation; Development; Environmental outcomes; Forest use; Livelihoods; Livelihood outcomes; Nontimber forest products; Trade.
Ano: 2006

Anticipatory Learning for Climate Change Adaptation and Resilience
Provedor de dados: 7
Autores: Tschakert, Petra; Department of Geography; Earth and Environmental Systems Institute (EESI), Pennsylvania State University; petra@psu.edu; Dietrich, Kathleen Ann; Department of Geography, Pennsylvania State University; kad984@psu.edu.
This paper is a methodological contribution to emerging debates on the role of learning, particularly forward-looking (anticipatory) learning, as a key element for adaptation and resilience in the context of climate change. First, we describe two major challenges: understanding adaptation as a process and recognizing the inadequacy of existing learning tools, with a specific focus on high poverty contexts and complex livelihood-vulnerability risks. Then, the article examines learning processes from a dynamic systems perspective, comparing theoretical aspects and conceptual advances in resilience thinking and action research/learning (AR/AL). Particular attention is paid to learning loops (cycles), critical reflection, spaces for learning, and power....
Tipo: Peer-Reviewed Reports
Palavras-chave: Anticipatory capacity; Action research/learning; Climatic uncertainty; Iterative learning; Reflection; Learning spaces; Scenarios; Development.
Ano: 2010

Climate Science, Development Practice, and Policy Interactions in Dryland Agroecological Systems
Provedor de dados: 7
Autores: Twyman, Chasca; Department of Geography, University of Sheffield; Sheffield Centre for International Drylands Research; C.Twyman@shef.ac.uk; Fraser, Evan D. G.; Department of Geography, University of Guelph; University of Leeds; frasere@uoguelph.ca; Stringer, Lindsay C.; Sustainability Research Institute, School of Earth and Environment, University of Leeds; l.stringer@leeds.ac.uk; Quinn, C.; Sustainability Research Institute, School of Earth and Environment, University of Leeds; C.H.Quinn@leeds.ac.uk; Dougill, Andrew J.; Sustainability Research Institute, School of Earth and Environment, University of Leeds; a.j.dougill@leeds.ac.uk; Crane, Todd A.; Technology and Agrarian Development, Wageningen University ; todd.crane@wur.nl; Sallu, Susannah M.; Sustainability Research Institute, School of Earth and Environment, University of Leeds; s.sallu@leeds.ac.uk.
The literature on drought, livelihoods, and poverty suggests that dryland residents are especially vulnerable to climate change.  However, assessing this vulnerability and sharing lessons between dryland communities on how to reduce vulnerability has proven difficult because of multiple definitions of vulnerability, complexities in quantification, and the temporal and spatial variability inherent in dryland agroecological systems. In this closing editorial, we review how we have addressed these challenges through a series of structured, multiscale, and interdisciplinary vulnerability assessment case studies from drylands in West Africa, southern Africa, Mediterranean Europe, Asia, and Latin America. These case studies adopt a common vulnerability framework...
Tipo: Peer-Reviewed Insight
Palavras-chave: Climate change; Drylands; Scenarios; Narratives; Development; Livelihoods; Poverty; Policy.
Ano: 2011

Private development-based forest conservation in Patagonia: comparing mental models and revealing cultural truths
Provedor de dados: 7
Autores: Serenari, Christopher; North Carolina Wildlife Resources Commission; cserenari@gmail.com; Peterson, M. Nils; North Carolina State University; nils_peterson@ncsu.edu; Leung, Yu-Fai; North Carolina State University; Leung@ncsu.edu; Stowhas, Paulina; University of Wisconsin-Madison; stowhas@gmail.com; Wallace, Tim; North Carolina State University; tmwallace@mindspring.com; Sills, Erin O.; North Carolina State University; sills@ncsu.edu.
Private protected area (PPA) conservation agents (CA) engaging in development-based conservation in southern Chile have generated conflict with locals. Poor fit of dominant development-based conservation ideology in rural areas is commonly to blame. We developed and administered a cultural consensus survey near the Valdivian Coastal Reserve (RCV) and Huilo Huilo Reserve (HH) to examine fit of CA cultural truths with local residents. Cultural consensus analysis (CCA) of 23 propositions reflecting CA cultural truths confirmed: (1) a single CA culture exists, and (2) RCV communities were more aligned with this culture than HH communities. Inadequate communication, inequitable decision making, divergent opinions about livelihood impacts and trajectories, and...
Tipo: Peer-Reviewed Reports
Palavras-chave: Chile; Cultural consensus; Development; Mental model; Private protected area.
Ano: 2015

Navigating trade-offs in land-use planning: integrating human well-being into objective setting
Provedor de dados: 7
Autores: Adams, Vanessa M.; Research Institute for the Environment and Livelihoods, Charles Darwin University; Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University; National Environmental Research Program Northern Australia Hub; v.adams@uq.edu.au; Pressey, Robert L.; Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University; National Environmental Research Program Northern Australia Hub; Bob.pressey@jcu.edu.au; Stoeckl, Natalie; School of Business and Cairns Institute, James Cook University; National Environmental Research Program Northern Australia Hub; natalie.stoeckl@jcu.edu.au.
There is an increasing demand for development of natural resources, which can be accompanied by environmental degradation. Planning for multiple land uses requires navigating trade-offs between social, economic, and environmental outcomes arising from different possible futures. To explore these trade-offs, we use the Daly River catchment, in Australia&amp;#8217;s Northern Territory, as a case study. The catchment contains areas of priority for both conservation and development.  In response to the challenge of navigating the required trade-offs, the Daly River Management Advisory Committee (DRMAC) initiated a land-use plan for the region.  Both development and conservation of natural resources in the catchment will affect human well-being and the...
Tipo: Peer-Reviewed Reports
Palavras-chave: Development; Human well-being; Land-use planning; Objective setting; Stakeholder engagement; Systematic conservation planning.
Ano: 2014

Navigating the adaptive cycle: an approach to managing the resilience of social systems
Provedor de dados: 7
Autores: Fath, Brian D; Advanced Systems Analysis, International Institute for Applied Systems Analysis; Department of Biological Sciences, Towson University; bfath@towson.edu; Dean, Carly A; Advanced Systems Analysis, International Institute for Applied Systems Analysis; carly.ann.dean@gmail.com; Katzmair, Harald; FAS.research; harald.katzmair@fas.at.
The concept of resilience continues to crescendo since the 1990s, touching on multiple fields with multiple interpretations and uses. Here, we start from its origins in systems ecology, framing the resilience concept explicitly in the adaptive cycle with the observation that resilient systems are ones that successfully navigate all stages of growth, development, collapse, and reorientation of this cycle. The model is explored in terms of the traps and pathologies that hinder this successful navigation, particularly when applied to socioeconomic organizations and decision-management situations. For example, for continuous function over the adaptive life cycle, a system needs activation energy or resources to grow, followed by adequate structure and...
Tipo: Peer-Reviewed Insight
Palavras-chave: Adaptive cycle; Collapse; Development; Growth; Re-orientation; Resilience; Succession; Thresholds.
Ano: 2015

Conservation and Development in Latin America and Southern Africa: Setting the Stage
Provedor de dados: 7
Autores: Romero, Claudia; Tropical Conservation and Development Program, Center for Latin American Studies, University of Florida.; romero@ufl.edu; Athayde, Simone; Tropical Conservation and Development Program and Amazon Conservation Leadership Initiative, Center for Latin American Studies, University of Florida.; simonea@ufl.edu; Collomb, Jean-Gael E.; Wildlife Conservation Network; jgcollomb@gmail.com; DiGiano, Maria; Tropical Conservation and Development Program, Center for Latin American Studies, University of Florida; marimardig@mac.com; Schmink, Marianne; Tropical Conservation and Development Program, Center for Latin American Studies, University of Florida.; schmink@LATAM.UFL.EDU; Schramski, Sam; Tropical Conservation and Development Program, Center for Latin American Studies, University of Florida; schramski@ufl.edu; Seales, Lisa; Tropical Conservation and Development Program, Center for Latin American Studies, University of Florida; lisaseal@ufl.edu.
Tipo: Peer-Reviewed Reports
Palavras-chave: Africa; Complex social-ecological systems; Conservation; Development; Knowledge networks; Local institutions; Economic incentives; Latin America.
Ano: 2012

Developing Adaptation and Adapting Development
Provedor de dados: 7
Autores: Lemos, Maria Carmen; James Martin 21st Century School Fellow, Environmental Change Institute, Oxford University Centre for the Environment, Oxford, OX1 3QY, UK; School of Natural Resources and Environment, University of Michigan, Ann Arbor, MI, USA.; lemos@umich.edu; Boyd, Emily; James Martin 21st Century School Fellow, Environmental Change Institute, Oxford University Centre for the Environment, South Parks Road, Oxford, UK OX1 3QY; emily.boyd@ouce.ox.ac.uk; Tompkins, Emma L; James Martin 21st Century School Fellow, Environmental Change Institute, Oxford University Centre for the Environment, South Parks Road, Oxford, UK OX1 3QY; emma.tompkins@ouce.ox.ac.uk; Osbahr, Henny; Tyndall Centre Research Fellow, Environmental Change Institute, Oxford University Centre for the Environment, South Parks Road, Oxford, UK OX1 3QY; henny.osbahr@ouce.ox.ac.uk; Liverman, Diana; Director, Environmental Change Institute, Environmental Change Institute, Oxford University Centre for the Environment, South Parks Road, Oxford, UK OX1 3QY; diana.liverman@eci.ox.ac.uk.
Tipo: Peer-Reviewed article
Palavras-chave: Adaptation; Adaptive capacity; Climate change; Development; Resilience.
Ano: 2007

Acknowledging Trade-offs and Understanding Complexity:  Exurbanization Issues in Macon County, North Carolina
Provedor de dados: 7
Autores: Vercoe, Richard A.; Department of Geography, University of Georgia; ravercoe@uga.edu; Welch-Devine, M.; Center for Integrative Conservation Research, University of Georgia; mwdevine@uga.edu; Hardy, Dean; Department of Anthropology, University of Georgia; rdhardy@uga.edu; Demoss, J. A.; Department of Anthropology, University of Georgia; jdemoss@uga.edu; Bonney, S. N.; Odum School of Ecology, University of Georgia; sbonney@uga.edu; Allen, K.; Department of Anthropology, University of Georgia; kallen@uga.edu; Brosius, Peter; Department of Anthropology, University of Georgia; pbrosius@uga.edu; Charles, D.; Department of Geography, University of Georgia; dhc31@uga.edu; Crawford, B.; Warnell School of Forestry and Natural Resources, University of Georgia; bcrawford515@gmail.com; Heisel, S.; Odum School of Ecology, University of Georgia; saraelizabethheisel@yahoo.com; Heynen, Nik; Department of Geography, University of Georgia; nheynen@uga.edu; Nibbelink, N.; Warnell School of Forestry and Natural Resources, University of Georgia; nate@warnell.uga.edu; Parker, L.; Department of Geography, University of Georgia; loweryp@uga.edu; Pringle, Cathy; Odum School of Ecology, University of Georgia; pringle@sparc.ecology.uga.edu; Shaw, A.; Department of Geography, University of Georgia; alanashaw@uga.edu; Van Sant, L.; Department of Geography, University of Georgia; leviv@uga.edu.
We applied an integrative framework to illuminate and discuss the complexities of exurbanization in Macon County, North Carolina.  The case of Macon County, North Carolina, highlights the complexity involved in addressing issues of exurbanization in the Southern Appalachian region. Exurbanization, the process by which urban residents move into rural areas in search of unique natural amenities and idealized lifestyles, can often have a dramatic impact on the local economy, culture, and environment. Within Macon County, complex debates and tensions among multiple stakeholders struggle to address local residential development. How can better problem definition benefit rural communities in addressing exurbanization pressures and effects? We asserted that a key...
Tipo: Peer-Reviewed Synthesis
Palavras-chave: Conservation; Development; Ecological; Exurbanization; Integrative conservation; Trade-offs.
Ano: 2014

Conservation and Unscripted Development:  Proximity to Park Associated with Development and Financial Diversity
Provedor de dados: 7
Autores: Baird, Timothy D.; Virginia Tech; tbaird@vt.edu.
Decades of research on the social dynamics of biodiversity conservation has shown that parks and protected areas have added hardship to rural communities throughout much of the developing world.  Nonetheless, some recent studies have found evidence of poverty alleviation near protected areas.  To build on these conflicting accounts, I use a comparative, mixed-methods design to examine opportunistic, unplanned, i.e., unscripted, development in indigenous communities near Tarangire National Park (TNP) in northern Tanzania.  I ask the questions: (1) How is proximity to TNP related to community-level infrastructural development?  (2) How has the process of development changed over time? and (3) How is proximity to TNP related to infrastructure-related social...
Tipo: Peer-Reviewed Reports
Palavras-chave: Africa; Conservation; Development; Education; Infrastructure; Tanzania.
Ano: 2014

Rights for resilience: food sovereignty, power, and resilience in development practice
Provedor de dados: 7
Autores: Walsh-Dilley, Marygold; Honors College, University of New Mexico; marygoldwd@unm.edu; Wolford, Wendy; Department of Development Sociology, Cornell University; www43@cornell.edu; McCarthy, James; Graduate School of Geography, Clark University; jamccarthy@clarku.edu.
Even as resilience thinking becomes evermore popular as part of strategic programming among development and humanitarian organizations, uncertainty about how to define, operationalize, measure, and evaluate resilience for development goals prevails. As a result, many organizations and institutions have undertaken individual, collective, and simultaneous efforts toward clarification and definition. This has opened up a unique opportunity for a rethinking of development practices. The emergent consensus about what resilience means within development practice will have important consequences both for development practitioners and the communities in which they work. Incorporating resilience thinking into development practice has the potential to radically...
Tipo: Peer-Reviewed Synthesis
Palavras-chave: Development; Food sovereignty; Human rights; Resilience; Social justice.
Ano: 2016

The Role of Governance in Agricultural Expansion and Intensification: a Global Study of Arable Agriculture
Provedor de dados: 7
Autores: Mandemaker, Menno; Chairgroup of Land Dynamics, Wageningen University; menno.mandemaker@wur.nl; Bakker, Martha; Chairgroup of Land Dynamics, Wageningen University; Martha.bakker@wur.nl; Stoorvogel, Jetse; Chairgroup of Land Dynamics, Wageningen University; jetse.stoorvogel@wur.nl.
In this research we studied empirical relationships between agricultural production dynamics and six quantitative World Bank governance indicators for 173 countries between 1975 and 2007. It is hypothesized that in countries with lower quality of governance, agricultural production increases are more likely to be achieved by area expansions than by increases in yields. We distinguished four groups of countries: those with both area and yield increases; those with increasing yields but decreasing area; those with decreasing yields but a growing area; and those with both declines in yields and area. We analyzed differences between these four groups, and also analyzed governance-production relationships within these groups. On average, quality of governance...
Tipo: Peer-Reviewed Reports
Palavras-chave: Cropland; Development; Empirical; Farming; Governance; Intensification.
Ano: 2011

Resilience and development: mobilizing for transformation
Provedor de dados: 7
Autores: Bousquet, Francois; CIRAD, UPR GREEN, F-34398 Montpellier, France ; francois.bousquet@cirad.fr; Alinovi, Luca; Global Resilience Partnership, Nairobi, Kenya; luca.alinovi@gmail.com; Barreteau, Olivier; IRSTEA, UMR G-EAU, France; olivier.barreteau@irstea.fr; Bossio, Deborah; International Center for Tropical Agriculture (CIAT), Nairobi, Kenya; d.bossio@cgiar.org; Brown, Katrina; College of Life and Environmental Sciences, University of Exeter, UK; katrina.brown@exeter.ac.uk; Caron, Patrick; CIRAD, DGDRS, F-34398 Montpellier, France; patrick.Caron@cirad.fr; d'Errico, Marco; FAO, Rome, Italy; Marco.DErrico@fao.org; DeClerck, Fabrice; Bioversity International, Montpellier, France ; f.declerck@cgiar.org; Enfors Kautsky, Elin; Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden; elin.enfors@su.se; Fabricius, Christo; Sustainability Research Unit, Nelson Mandela University, South Africa; christo.fabricius@nmmu.ac.za; Folke, Carl; Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden;  Beijer Institute, Royal Swedish Academy of Sciences, Stockholm, Sweden; carl.folke@beijer.kva.se; Fortmann, Louise; UC Berkeley, USA; louisef@berkeley.edu; Hubert, Bernard; INRA, France; bernard.hubert@avignon.inra.fr; Norgaard, Richard B.; University of California at Berkeley, USA; norgaard@igc.org; Quinlan, Allyson; Resilience Alliance; aquinlan@resalliance.org; Staver, Charles; Bioversity International, Montpellier, France; c.staver@cgiar.org.
In 2014, the Third International Conference on the resilience of social-ecological systems chose the theme &amp;#8220;resilience and development: mobilizing for transformation.&amp;#8221; The conference aimed specifically at fostering an encounter between the experiences and thinking focused on the issue of resilience through a social and ecological system perspective, and the experiences focused on the issue of resilience through a development perspective. In this perspectives piece, we reflect on the outcomes of the meeting and document the differences and similarities between the two perspectives as discussed during the conference, and identify bridging questions designed to guide future interactions. After the conference, we read the documents...
Tipo: Peer-Reviewed article
Palavras-chave: Development; Perspective; Resilience; Social-ecological systems; Transdisciplinarity.
Ano: 2016

Visions, beliefs, and transformation: exploring cross-sector and transboundary dynamics in the wider Mekong region
Provedor de dados: 7
Autores: Smajgl, Alex; MERFI Mekong Region Futures Institute; CSIRO Land and Water Flagship; alex.smajgl@mekongfutures.com; Ward, John R.; MERFI Mekong Region Futures Institute; CSIRO Land and Water Flagship; john.ward@mekongfutures.com; Foran, Tira; CSIRO Land and Water Flagship; tira.foran@csiro.au; Dore, John; DFAT Australian Aid, Australian Embassy, Bangkok, Thailand; John.Dore@ausaid.gov.au; Larson, Silva; CSIRO Land and Water Flagship; College of Business, Law and Governance, Division of Tropical Environments and Societies, James Cook University; silva.larson@jcu.edu.au.
Policy and investment decisions in highly connected, developing regions can have implications that extend beyond their initial objectives of national development and poverty reduction. Local level decisions that aim to promote trajectories toward desirable futures are often transformative, unexpectedly altering factors that are determined at higher regional levels. The converse also applies. The ability to realize desirable local futures diminishes if decision-making processes are not coordinated with other influential governance and decision levels. Providing effective support across multiple levels of decision making in a connected, transformative environment requires (a) identification and articulation of desired outcomes at the relevant levels of...
Tipo: Peer-Reviewed Reports
Palavras-chave: Complexity; Development; Mekong; Participatory research.
Ano: 2015

Infodynamics, a Developmental Framework for Ecology/Economics
Provedor de dados: 7
Autores: Salthe, Stanley N; Biological Sciences, Binghamton University; ssalthe@binghamton.edu.
Infodynamics, for our purposes, is a developmental perspective that animates information theory by way of thermodynamics. The isomorphism between Boltzmann's statistical interpretation of physical entropy as disorder and Shannon's formulation of variety as informational entropy signals a deep connection between information and entropy production. Information is any configuration that might have been different, providing that it delays energy dissipation so that the energy is dissipated more completely. The entropy production of individual dissipative structures increases at first but eventually decelerates. I consider the questions: why do these structures grow? And why don't they keep on growing? As the universal expansion of the Big Bang accelerated,...
Tipo: Peer-Reviewed Reports
Palavras-chave: Big Bang; Minot-Aoki law; Development; Developmental trajectories; Dissipative structures; Ecosocial systems; Energy gradient dissipation; Entropy production; Information; Senescence; Second law of thermodynamics.
Ano: 2003

THE SUCCESS OF THE BRAZILIAN ALCOHOL PROGRAM (PROÁLCOOL) - A DECADE-BY-DECADE BRIEF HISTORY OF ETHANOL IN BRAZIL
Provedor de dados: 70
Autores: Stolf,Rubismar; Oliveira,Ana Paula Rodrigues de.
ABSTRACT The National Alcohol Program (Proálcool) was a strategic policy of the Brazilian government to replace petroleum-based fuels with alcohol (ethanol). Based on the review, we can choose the 1960s as a start point for a leap in development. Over the 500 years of sugarcane history in Brazil, the crop enters the second decade of the 21st century with extraordinary strength and prestige, reaching its highest production in history. This made Brazil a leader in sugar and ethanol productions worldwide, with an energy-independent agribusiness. Moreover, effluents and polluting wastes were transformed into high-value inputs (e.g., vinasse, filter cake, and others). Environmentally friendly actions included developing organic cane production technology,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Strategies; Development; Agribusiness; World leadership.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000200243

Sex determination in annual fishes: searching for the master sex-determining gene in Austrolebias charrua (Cyprinodontiformes, Rivulidae)
Provedor de dados: 74
Autores: Arezo,María José; Papa,Nicolás; Guttierrez,Verónica; García,Graciela; Berois,Nibia.
Evolution of sex determination and differentiation in fishes involves a broad range of sex strategies (hermaphroditism, gonochorism, unisexuality, environmental and genetic sex determination). Annual fishes inhabit temporary ponds that dry out during the dry season when adults die. The embryos exhibit an atypical developmental pattern and remain buried in the bottom mud until the next rainy season. To elucidate genomic factors involved in the sex determination in annual fish, we explored the presence of a candidate sex-specific gene related to the cascade network in Austrolebias charrua. All phylogenetic analyses showed a high posterior probability of occurrence for a clade integrated by nuclear sequences (aprox. 900 bp) from both adults (male and female),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Annual fish; Development; Sex determination; Doublesex gene related sequence.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000300008

A Floricaula/Leafy gene homolog is preferentially expressed in developing female cones of the tropical pine Pinus caribaea var. caribaea
Provedor de dados: 74
Autores: Dornelas,Marcelo Carnier; Rodriguez,Adriana Pinheiro Martinelli.
In angiosperms, flower formation is controlled by meristem identity genes, one of which, FLORICAULA (FLO)/LEAFY (LFY), plays a central role. It is not known if the formation of reproductive organs of pre-angiosperm species is similarly regulated. Here, we report the cloning of a conifer (Pinus caribaea var. caribaea) FLO/LFY homolog, named PcLFY. This gene has a large C-terminal region of high similarity to angiosperm FLO/LFY orthologs and shorter regions of local similarity. In contrast to angiosperms, conifers have two divergent genes resembling LFY. Gymnosperm FLO/LFY proteins constitute a separate clade, that can be divided into two divergent groups. Phylogenetic analysis of deduced protein sequences has shown that PcLFY belongs to the LFY-like clade....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: LEAFY; Plant reproduction; Development; Gene expression; Flowering.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000200021

Towards the identification of flower-specific genes in Citrus spp
Provedor de dados: 74
Autores: Dornelas,Marcelo Carnier; Camargo,Raquel Luciana Boscariol; Berger,Irving Joseph; Takita,Marco Aurélio.
Citrus sinensis is a perennial woody species, for which genetic approaches to the study of reproductive development are not readily amenable. Here, the usefulness of the CitEST Expressed Sequence Tag (EST) database is demonstrated as a reliable new resource for identifying novel genes exclusively related to Citrus reproductive biology. We performed the analysis of an EST dataset of the CitEST Project containing 4,330 flower-derived cDNA sequences. Relying on bioinformatics tools, sequences exclusively present in this flower-derived sequence collection were selected and used for the identification of Citrus putative flower-specific genes. Our analysis revealed several Citrus sequences showing significant similarity to conserved genes known to have...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Development; Flower-specific genes; Reproduction; Transcription factors.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000500005

In silico analysis of phytohormone metabolism and communication pathways in citrus transcriptome
Provedor de dados: 74
Autores: Quecini,Vera; Torres,Gisele A.M.; Rosa Jr,Vicente E. de; Gimenes,Marcos A.; Machado,Jeanne B. de M.; Figueira,Antonio V. de O.; Benedito,Vagner; Targon,Maria Luisa P.N.; Cristofani-Yaly,Mariângela.
Plant hormones play a crucial role in integrating endogenous and exogenous signals and in determining developmental responses to form the plant body throughout its life cycle. In citrus species, several economically important processes are controlled by phytohormones, including seed germination, secondary growth, fruit abscission and ripening. Integrative genomics is a powerful tool for linking newly researched organisms, such as tropical woody species, to functional studies already carried out on established model organisms. Based on gene orthology analyses and expression patterns, we searched the Citrus Genome Sequencing Consortium (CitEST) database for Expressed Sequence Tags (EST) consensus sequences sharing similarity to known components of hormone...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Defense responses; Development; Plant growth regulators.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000500002

Expression of Msx1 and Dlx1 during Dumbo rat head development: correlation with morphological features
Provedor de dados: 74
Autores: Katerji,Suhair; Vanmuylder,Nathalie; Svoboda,Michal; Rooze,Marcel; Louryan,Stéphane.
The Dumbo rat possesses some characteristics that evoke several human syndromes, such as Treacher-Collins: shortness of the maxillary, zygomatic and mandibular bones, and low position of the ears. Knowing that many homeobox genes are candidates in craniofacial development, we investigated the involvement of the Msx1 and Dlx1 genes in the Dumbo phenotype with the aim of understanding their possible role in abnormal craniofacial morphogenesis and examining the possibility of using Dumbo rat as an experimental model for understanding abnormal craniofacial development. We studied the expression of these genes during craniofacial morphogenesis by RT-PCR method. We used Dumbo embryos at E12 and E14 and included the Wistar strain as a control. Semi-quantitative...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dumbo rat; Msx1; Dlx1; Face; Embryo; Development.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000200030

Molecular evolution of HoxA13 and the multiple origins of limbless morphologies in amphibians and reptiles
Provedor de dados: 74
Autores: Singarete,Marina E.; Grizante,Mariana B.; Milograna,Sarah R.; Nery,Mariana F.; Kin,Koryu; Wagner,Günter P.; Kohlsdorf,Tiana.
Developmental processes and their results, morphological characters, are inherited through transmission of genes regulating development. While there is ample evidence that cis-regulatory elements tend to be modular, with sequence segments dedicated to different roles, the situation for proteins is less clear, being particularly complex for transcription factors with multiple functions. Some motifs mediating protein-protein interactions may be exclusive to particular developmental roles, but it is also possible that motifs are mostly shared among different processes. Here we focus on HoxA13, a protein essential for limb development. We asked whether the HoxA13 amino acid sequence evolved similarly in three limbless clades: Gymnophiona, Amphisbaenia and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Development; Evolution; HoxA13; Molecular signatures; Limblessness.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000300255

Analysis of the SHP2 enhancer for the use of tissue specific activation tagging in Arabidopsis thaliana
Provedor de dados: 74
Autores: Chalfun-Junior,Antonio; Mes,Jurriaan J.; Busscher,Marco; Angenent,Gerco C.
Activation tagging is a powerful tool to identify new mutants and to obtain information about possible biological functions of the overexpressed genes. The quadruple cauliflower mosaic virus (CaMV) 35S enhancer fragment is a strong enhancer, which is most commonly used for this purpose. However, the constitutive nature of this enhancer may generate lethal mutations or aberrations in different plant organs by the same overexpressed gene. A tissue-specific activation tagging approach may overcome these drawbacks and may also lead more efficiently to the desired phenotype. For this reason the SHATTERPROOF2 (SHP2) promoter fragment was analysed for enhancer activity. The SHP2 gene is involved in dehiscence zone development and expressed during silique...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arabidopsis; Development; Pod shattering; Transcription factors; Mutants.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000200032

MicroRNAs play critical roles during plant development and in response to abiotic stresses
Provedor de dados: 74
Autores: Lima,Júlio César de; Loss-Morais,Guilherme; Margis,Rogerio.
MicroRNAs (miRNAs) have been identified as key molecules in regulatory networks. The fine-tuning role of miRNAs in addition to the regulatory role of transcription factors has shown that molecular events during development are tightly regulated. In addition, several miRNAs play crucial roles in the response to abiotic stress induced by drought, salinity, low temperatures, and metals such as aluminium. Interestingly, several miRNAs have overlapping roles with regard to development, stress responses, and nutrient homeostasis. Moreover, in response to the same abiotic stresses, different expression patterns for some conserved miRNA families among different plant species revealed different metabolic adjustments. The use of deep sequencing technologies for the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: MiRNAs; Development; Abiotic stress; Nutrients; Deep sequencing.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000600023

Molecular cloning and expression analysis of a zebrafish novel zinc finger protein gene rnf141
Provedor de dados: 74
Autores: Deng,Wenqian; Sun,Huaqin; Liu,Yunqiang; Tao,Dachang; Zhang,Sizhong; Ma,Yongxin.
ZNF230 is a novel zinc finger gene cloned by our laboratory. In order to understand the potential functions of this gene in vertebrate development, we cloned the zebrafish orthologue of human ZNF230, named rnf141. The cDNA fragment of rnf141 was obtained by rapid amplification of cDNA ends (RACE). The open reading frame (ORF) encodes a polypeptide of 222 amino acids which shares 75.65% identity with the human ZNF230. RT-PCR analysis in zebrafish embryo and adult tissues revealed that rnf141 transcripts are maternally derived and that rnf141 mRNA has a broad distribution. Zygotic rnf141 message is strongly localized in the central nervous system, as shown by whole-mount in situ hybridization. Knockdown and over expression of rnf141 can induce abnormal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rnf141; Zebrafish (Danio rerio); Development; Zinc finger protein.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000300024

Comparative study of wax glands in four Meliponini bees (Hymenoptera, Apidae) producing different quantities of wax
Provedor de dados: 76
Autores: Cavalcante,Vagner Melo; Oliveira,Vagner Tadeu Paes de; Cruz-Landim,Carminda da.
The developmental degree of the wax glands was compared in four Meliponini bees, that produce different quantities of wax. The histological data and height average of the wax epithelium during the time in which the maximum production of wax is expected, are in accordance with the rates of wax produced by the species. In Lestrimelitta limao (Smith, 1863) a species which has cleptobiotic habits, and frequently rob wax from the attacked colonies, the height of wax epithelium was the lowest among the studied species. The cells seem to show an abnormal vacuolated cytoplasm, in the phase in which they would be producing wax.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Stingless bees; Wax glands; Development; Wax production.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212000000200010

Aspectos da biologia reprodutiva de Bothrops jararaca em cativeiro (Serpentes, Viperidae)
Provedor de dados: 76
Autores: Alves,Maria Lúcia Machado; Leitão-de-Araujo,Moema; Witt,André Alberto.
The reproduction of Bothrops jararaca (Wied, 1824) in captivity in ordened to determine the intercourse period, births, number of neonates, proportion of males and females per litter were performed between 1989 and 1999. Fifty eight females were observed, 16 intercourses in captivity, 45 females arrived already fertilized from nature and 53 litters, resulting on the birth of 426 live neonates, 67 infertile egg masses, 18 stillborn neonates and 4 abnormal neonates. The intercourse period was from february to december and the births happened between february and may. From the two gestacional periods observed, the shortest one was 152 days and the longest 239. The average amount of live neonates per litter was 8,04. Among 323 neonates, 47,68% were males and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bothrops jararaca; Reproductive cycle; Neonates; Development; Captivity.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212000000200009

Desenvolvimento de Synthesiomyia nudiseta (Diptera, Muscidae) em laboratório
Provedor de dados: 76
Autores: Krüger,Rodrigo F.; Ribeiro,Paulo B.; Carvalho,Cláudio J. B. de; Costa,Paulo R. P.
A colony of Synthesiomyia nudiseta (WULP, 1883) was established in the laboratory to obtain eggs, larvae and puparium, to determine the period of development and viability at constant temperature with RH above 75% and photoperiod of 12 h. The viability of development cicle was 48.68%. Incubation period was 21.17 h, larvae development 25.97; 48.08 and 233.65 h for the first, second and feeding phase of third instars, respectively. The development period of postfeeding larva, prepupa and pupa development was 322.26 h.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Synthesiomyia; Development; Forense Entomology; Azeliinae.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212002000400004

Ontogeny of the skull of Sotalia guianensis (Cetartiodactyla: Delphinidae) on the Northern coast of Brazil
Provedor de dados: 76
Autores: Novais,Renata F.; Siciliano,Salvatore; Emin-Lima,Renata; Silva Júnior,José S.
ABSTRACT This study aimed to investigate the ontogenetic development of the skull in the Guiana dolphin (Sotalia guianensis Van Bénéden, 1864 ) through the comparison of 29 morphological non-metrical characters together with the estimated age of 54 specimens derived from four areas on the northern coast of Brazil. The state of each character was associated with the age of each specimen to assess the formation of bone structures, and the degree of fusion of the sutures in each state of the character studied. Nineteen qualitative morphological characters presenting state ontogenetic variations have been analyzed statistically. The analysis depicted that the characters associated with the parietal-frontal suture, parietosupraoccipital, parietoexoccipital,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic mammals; Small cetaceans; Development; Morphology.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100224

Desenvolvimento de recursos humanos na EMBRAPA.
Provedor de dados: 14
Autores: PEREIRA, W. C. de A.
Princípios de desenvolvimento de recursos humanos; Política de recursos humanos.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Desenvolvimento; Development; Human resource; Recurso Humano.
Ano: 1980
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/88694

Influência do esterco no crescimento e no acúmulo de nutrientes em mudas de mamão havaí.
Provedor de dados: 14
Autores: MULLER, C. H.; REIS, G. G. dos; MULLER, A. A.
bitstream/item/59119/1/CPATU-ComTec30.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Mamão havaí; Desenvolvimento; Papaya; Fertilization; Fruit; Development; Cultting; Nutrient; Manure.; Adubação; Carica Papaya; Esterco; Fruta; Muda; Nutriente.
Ano: 1979
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376115

Implantação de campos de matrizes de cajueiro.
Provedor de dados: 14
Autores: MORAES, E. da C.; ALBUQUERQUE, F. C. de; CORAL, R. P. da S. P.
bitstream/item/114589/1/MATRIZES-CAJUEIRO.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Desenvolvimento; Cashew-nut; Selection; Development; Fruit.; Caju; Fruto; Fruta; Melhoramento; Peso; Seleção.; Breeding; Weight.
Ano: 1974
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376098

Dynamique des systemes d'elevage.
Provedor de dados: 14
Autores: CARON, P.; HUBERT, B.
L'élevage est une activité majeure dans le Nordeste semi-aride. C'est aussi un domaine d'intervention privilégié des institutions de recherche et de développement, qui souhaitent promouvoir Ia diffusion de modeles technologiques dits « modernes ». L'analyse et en évidence le décalage entre des propositions élaborées et expérimentées en station, selon des objectifs d'augmentation de la productivité et des criteres de validation biotechniques, et Ia réalité des dynamiques et des besoins des producteurs familiaux. Elle montre que les choix techniques des exploitants se réalisent en fonction de stratégies dont les tenants et les aboutissants échappent en partie au domaine de Ia technique au sens strict.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Tipificacao; Trajetoria; Nordeste; Regiao semi-arida; Familiar farms; Trajectory; Development; Northeast; Agricultura Familiar; Produção Animal; Sistema de Produção; Animal production; Classification; Farming systems; Brazil.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/134409

Les agricultures familiales du sertao en mouvement.
Provedor de dados: 14
Autores: SABOURIN, E.; CARON, P.
Les réalités de I'agriculture familiale nordestine sont plurielles. Contrairement aux discours dominants, qui évoquent invariablement· le petit producteur et son immobilisme, les agricultures familiales connaissent de p rofondes mutations techniques, économiques et sociales. Les résultats des travaux présentés dans cet ouvrage confirment combien les mots d'ordre développementalistes correspondent à des perceptions idéologiques ou déformées de Ia réalité. A leur façon, les connaissances produites cherchent ici à corriger les représentations figées qui prévalent trop souvent.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Evolucao; Desenvolvimento; Sertao; Familiar farms; Development; Brasil; Nordeste; Semiarid region; Agricultura Familiar; Evolution.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/134417

Produção de alimentos: o potencial dos cerrados.
Provedor de dados: 14
Autores: MACEDO, J.
Os cerrados brasileiros; Ocupação a terra; A geração da tecnologia; Antecedentes; O planejamento estratégico; Tecnologias desenvolvidas; Tecnologias a serem lançadas nos próximos cinco anos; Convênios internacionais; Retorno dos investimentos em pesquisa; Uso atual dos cerrados; Uso potencial dos cerrados.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brasil; Productivity; Development; Geração; Production; Região; Region.; Alimento; Agricultura; Cerrado; Ocupação; Produção de Alimentos; Produtividade; Produção; Tecnologia; Solo; Vegetação.; Agriculture; Brazil; Food production; Savannas; Technology; Soil; Vegetation.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/551820

Diversite et trajectoires d'evolution des exploitations.
Provedor de dados: 14
Autores: CARON, P.
Valorisation de la rnain-d'ceuvre familiale et autonomie de gestion des moyens de production sont les deux principales caractéristiques de l'agriculture familiale, qui font de I'exploitation agricole familiale un niveau d'organisation majeur. C'est à ce niveau que les producteurs définissent, pour eux et pour les leurs, des objectifs en fonction de Ia perception qu'ils ont de leur environnement et de leur situation dans cet environnement. C'est aussi à ce niveau qu'ils mobilisent, organisent et gerent les moyens de production, et qu'ils choisissent d'affecter les fruits de leur travail à l'investissement, à la consommation ou à I'épargne. Le petit producteur est depuis les années 80 l'objet de multiples attentions de Ia part des institutions publiques de...
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Diversidade; Trajetoria; Evolucao; Organizacao; Tipificacao; Brasil; Nordeste; Bahia; Massaroca; Pintadas; Familiar farms; Diversity; Trajectory; Development; Organization; Northeast; Agricultura Familiar; Classification; Evolution; Brazil.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/134408

Avaliação do clima do Estado de Rondônia para desenvolvimento agrícola.
Provedor de dados: 14
Autores: BASTOS, T. X.; DINIZ, T. D. de A. S.
bitstream/item/31914/1/CPATU-BP44.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Climatologia agricola; Desenvolvimento; Radiacao solar global; Umidade do ar; Precipitacao pluviometrica; Rondonia; Brasil; Development; Global solar radiation; Preciptation.; Agricultura; Clima; Temperatura.; Amazonia; Agriculture; Climatology; Climate; Humidity; Temperature.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381150

Vale do Salitre: elementos para uma ação coordenada.
Provedor de dados: 14
Autores: CORREIA, R. C.; TONNEAU, J. P.; OLIVEIRA, J. de S.; MOREIRA, J. N.; SÁ, F. de A.
Baseado no Curso "Intervencao no Meio Rural: principios, metodos e estrategias de apoio do pequeno produtor, organizado pela EMBRAPA-CPATSA para pesquisadores e extencionistas, onde surgiu a ideia de elaborar um anteprojeto, permitindo uma acao coordenada das diferentes instituicoes publicas e privadas em colaboracao com as associacoes representativas dos produtores. O trabalho apresenta resultados sobre o comportamento da irrigacao tradicional e os pequenos produtores do Vale do Salitre, localizado no municipio de Juazeiro, Bahia.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Agricultor baixa renda; Aspecto sócio-econômico; Bahia; Juazeiro; Vale do Salitre; Development; Small farmers.; Irrigação; Agriculture; Irrigation.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131835

Introdução e avaliação de forrageiras em áreas de cerrado do Território Federal do Amapá.
Provedor de dados: 14
Autores: DUTRA, S.; SOUZA FILHO, A. P.; SERRÃO, E. A. S.
bitstream/item/33535/1/CPATU-CirTec14.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Avaliacao; Introducao; Desenvolvimento; Capim quicuio-da-amazonia; Amapa; Brasil; Forage crop; Grass; Leguminous; Valuation; Introduction; Productivity; Development; Dray matter.; Brachiaria Humidicola; Gramínea; Leguminosa; Matéria Seca; Planta Forrageira; Produtividade.; Stylosanthes.; Amazonia.
Ano: 1980
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/378563

O papel da rede de fazendas de referencia no enfoque de pesquisa - desenvolvimento: Projeto Silvania.
Provedor de dados: 14
Autores: BONNAL, P.; XAVIER, J. H. V.; SANTOS, N. A. dos; SOUZA, G. L. C. de; ZOBY, J. L. F.; GASTAL, M. L.; PEREIRA, E. A.; PANIAGO JUNIOR, E.; SOUZA, J. B. de.
bitstream/item/101495/1/doc-56.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Desenvolvimento; Brasil; Goias; Silvania; Methods; Development; Adoção de inovação; Agricultural modernization; Brasília; Innovation adaption; Metodologia; Planaltina; Projeto Silvania.; Agricultura; Cerrado; Modernização; Método; Pesquisa; Transferência de Tecnologia.; Agriculture; Brazil; Research; Technology transfer.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549466

II Plano diretor: Embrapa Meio Ambiente: 2000-2003.
Provedor de dados: 14
Autores: EMBRAPA MEIO AMBIENTE.
Sumário: Contextualização: visão de futuro; A agricultura brasileira; As questões ambientais da agricultura; Diagnostico e gestão ambientais; Relações interinstitucionais; Modelo orientador da Embrapa Meio Ambiente; Missão, visão e valores; Negócio; Mercado; Produtos; Clientes; Parceiros; Objetivos; Objetivos técnico-programáticos; Objetivos de apoio técnico e administrativo; Objetivos organizacionais e institucionais; Metas; Metas Técnico-Científicas; Metas administrativas; Diretrizes estratégicas; Pesquisa e desenvolvimento (P &amp; D); Transferência de conhecimento e tecnologia; Valorização dos recursos humanos; Modelo institucional e sistema de gestão; Projetos estruturantes; Comunicação em meio ambiente e agricultura; Negócios tecnológicos na...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Desenvolvimento; Development; Environments.; Planejamento estratégico; Planejamento de pesquisa; Agricultura; Impacto Ambiental; Meio Ambiente; Pesquisa; Planejamento.; Agriculture; Environmental impact; Research.; Planning.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1050975

Modernizacao da agricultura camponesa e estrategia dos produtores: Projeto Silvania, estado de Goias, Brasil.
Provedor de dados: 14
Autores: BONNAL, P.; ZOBY, J. L. F.; GASTAL, M. L.; XAVIER, J. H. V.; SOUZA, G. L. C. de; PEREIRA, E. A.; PANIAGO JUNIOR, E.; SOUZA, J. B. de.
bitstream/item/101494/1/doc-55.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Projeto Silvania; Goias; Brasil; Media renda; Desenvolvimento; Innovation adaption; Development; Adoção; Adoção de inovação; Agricultor de baixa renda.; Agricultor; Agricultura; Baixa Renda; Cerrado; Modernização; Pesquisa; Tecnologia.; Agriculture; Research; Modernization; Small farms; Technology.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549467

CPATSA: pesquisa agropecuaria para o semi-arido.
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agropecuaria do Tropico Semi-Arido.
O Centro de Pesquisa Agropecuária do Trópico Semi-Árido (CPATSA), criado em 1975 pela Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), é uma das instituições localizadas no Nordeste do Brasil procurando contribuir para o de scnvolvimento rural da região.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: CPATSA; Estrutura organizacional; Infra-estrutura; Projeto de implantacao; Desenvolvimento; Organization structure; Research program; Implantation project; Development; Semiárido; Pesquisa; Programa de Pesquisa; Recurso Humano; Tecnologia; Research; Human resources; Infrastructure; Technology.
Ano: 1988
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133840

Avaliacao e selecao de clones de seringueira em condicoes de cerrado do estado de Goias e do Distrito Federal.
Provedor de dados: 14
Autores: PEREIRA, E. B. C.; PEREIRA, A. V.; TIRABOSCHI, G. M. N.; FIALHO, J. de F.; JUNQUEIRA, N. T. V.; ALVES, R. T.
bitstream/CPAC-2009/24133/1/p2002_13.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Planta reprodutora de borracha; Desenvolvimento; Cultura perene; Rubber yield; Development; Production; Rubber crops.; Clone; Hevea Brasiliensis; Melhoramento Genético Vegetal; Produção; Seringueira.; Plant breeding.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567439

Proposta metodologica de transferencia de tecnologia para promover o desenvolvimento.
Provedor de dados: 14
Autores: GASTAL, M. L.; ZOBY, J. L. F.; PANIAGO JUNIOR, E.; MARZIN, J.; XAVIER, J. H. V.; SOUZA, G. L. C. de; PEREIRA, E. A.; KALMS, J. M.; BONNAL, P.
bitstream/item/101486/1/doc-51.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Transferencia; Metodologia; Desenvolvimento; Agropecuária; Brasil; Brasília; Development; Innovation; Inovação tecnológica; Methods; Planaltina; Transference.; Agricultura; Desenvolvimento Rural; Extensão Rural; Método; Pesquisa; Transferência de Tecnologia.; Tecnologia; Agriculture; Research; Methodology; Rural development; Technology; Technology transfer.
Ano: 1993
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549462

Invasoras em pastagens.
Provedor de dados: 14
Autores: RASSINI, J. B.
Aparecimento de invasoras em pastagens; Principais causas do aparecimento de invasoras em pastagens; Interferência de invasoras em pastagens; Controle de invasoras em pastagens.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Pastagens; Invasoras; Desenvolvimento; Plantas daninhas; Controle; Development; Control.; Qualidade.; Pastures.
Ano: 1993
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/42325

Importancia da pesquisa agropecuaria no desenvolvimento do Nordeste.
Provedor de dados: 14
Autores: LOPES, P. R. C.
Trata sobre: aspectos economicos; aspectos sociais; a pesquisa agropecuaria no Nordeste; unidades executivas de servicos; as empresas estaduais de pesquisa; as universidades; as entidades de fomento a ciencia e a tecnologia; o sistema de extensao e assistencia tecnica rural; prioridades de pesquisa; tecnologias geradas e/ou adaptadas pelos centros de pesquisa da EMBRAPA para o Nordeste; caracterizacao socio-economica dos polos agroindustriais: Petrolina/Juazeiro (PE/BA).
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agropecuaria; Desenvolvimento; Nordeste; Agricultural; Development; Northeast; Pesquisa; Tecnologia; Research; Technology.
Ano: 1995
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132482

Densidade aparente e porosidade do solo no desenvolvimento do milho.
Provedor de dados: 14
Autores: BAENA, A. R. C.; DUTRA, S.
bitstream/item/59280/1/CPATU-ComTec24.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Desenvolvimento; Densidade; Maize; Development; Growth.; Crescimento; Milho; Porosidade; Solo; Zea Mays.; Density; Porosity; Soil.
Ano: 1979
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376654

MANUAL do projeto de pesquisa e de apoio ou desenvolvimento.
Provedor de dados: 14
Formularios dos documentos do projeto de pesquisa; Formularios dos documentos do projeto de apoio ou desenvolvimento; Epocas de apresentacao dos documentos dos documetos do projeto de pesquisa e de apoio ou desenvolvimento; Calendario nacional de reunioes de elaboracao de projetos e datas limites; Instrucoes gerais para elaboracao dos documentos do projeto de pesquisa e de apoio ou desenvolvimento; Formulacao do projeto; Resumo do projeto; Relatorio de andamento ou final do projeto de pesquisa; Resumo do relatio do projeto de pesquisa; Projeto de apoio ou desenvolvimento; Relatorio de andamento ou final.
Tipo: Livros
Palavras-chave: Projeto; Manual; Project; Development; Pesquisa; Research.
Ano: 1989
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/93212

Sistema de informação para gestão de P &amp; D da Embrapa Gado de Corte.
Provedor de dados: 14
Autores: QUEIROZ, H. P.; CEZAR, I. M.; MIRANDA, C. H. B.; SOARES, C. O.
Atribuições da Chefia de Pesquisa e Desenvolvimento. Acompanhamento e avaliação de P &amp; D. Sistema de Informação para gestão de P &amp; D (SIGPD). Características do sistema. Descritores componentes. "Dimensões" de gerenciamento e parâmetros analíticos. Programa. Ações de P &amp; D. Recursos Humanos. Recursos Financeiros.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Embrapa Gado de Corte; Desenvolvimento; Embrapa Beef Cattle; Development; Administration.; Administração de Pesquisa; Base de Dados; Instituição de Pesquisa; Sistema de Informação.; Databases; Information systems; Research institutions.
Ano: 2005
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/316535

O futuro sem fome.
Provedor de dados: 14
Autores: FLORES, M. X.; SILVA, J. de S.
Agricultura e C&amp;T em perspectiva histórica; A globalização do sistema agroalimentar; A agricultura em um plano de Nação; Educação e C&amp;T agropecuária em um plano de Nação; A matriz institucional pública agrícola.
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Desenvolvimento; Projeto; Setor rural; Ciência; Plano; Development; Project; Rural sector; Science; Plan.; Agricultura; Fome; Tecnologia.; Agriculture; Technology.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/94502

Zoneamento agropecuario municipal.
Provedor de dados: 14
Autores: OLIVEIRA, C. A. V.; SOUZA, R. A.; RICHE, G. R.
Levantamento dos recursos naturais; Levantamento Socioeconômico.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Recursos natuaris; Desenvolvimento; Caracterizacao; Levantamento socioeconomico; Potencial; Preservacao ambiental; Environmental; Conservation; Development; Soil characterization; Socioeconomic surveys; Potential; Natural resource; Recurso natural; Meio Ambiente; Solo; Natural resources.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/134542

Semeadora de capim buffel.
Provedor de dados: 14
Autores: SOARES, J. G. G.; ANJOS, J. B. dos.
Descrição da máquina; Funcionamento e características de operação; Capacidaded operacional; Tipos de sementes.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Desenvolvimento; Buffel grass; Development; Patagem; Pasture.; Produção animal; Capim Buffel; Equipamento Rural; Semeadeira.; Animal production; Equipment; Planting.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133955

Fases de desenvolvimento da planta de girassol.
Provedor de dados: 14
Autores: CASTIGLIONI, V. B. R.; BALLA, A.; CASTRO, C. de; SILVEIRA, J. M.
Caracteristicas basicas da planta de girassol; Descricao das fases de desenvolvimento da planta de girassol; Duracao e existencias das principais fases de desenvolvimento da planta de girassol; Avaliacao de caracteres agronomicos em girassol.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Avaliacao; Caracteristica; Desenvolvimento; Fase; Estadio; Brasil; Sunflower; Evaluation; Characteristics; Development; Stage.; Girassol; Melhoramento.; Brazil; Plant breeding.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445797

Coletânea de trabalhos sobre a Embrapa.
Provedor de dados: 14
Autores: ALVES, E. R. de A.; PASTORE, J.; PASTORE, A. C.
A política agrícola do Brasil e hipótese da inovação induzida; O papel da tecnologia na expansão agrícola; Reforming the brazilian agricultural research system; Nova abordagem para a pesquisa agropecuária; O processo de geração de conhecimento; O enfoque de sistemas na Embrapa; O modelo institucional da Embrapa; Programa de treinamento: carreira de pesquisador; As unidades de difusão de tecnologia da embrapa
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Desenvolvimento; Estratégia; Brasil; Policy; Development; Technical assistance; Strategy.; Agricultura; Assistência Técnica; Crédito Agrícola; Política; Preço Mínimo.; Agricultural credit; Agriculture; Brazil.
Ano: 1977
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/84033

Avaliação preliminar do desempenho de clones de seringueira em condições de cerrado do estado de Goiás e Distrito Federal.
Provedor de dados: 14
Autores: PEREIRA, A. V.; PEREIRA, E. B. C.; FIALHO, J. de F.; JUNQUEIRA, N. T. V.
Este trabalho teve como objetivo avaliar o desempenho de clones de seringueira (Hevea spp.) e selecionar os mais produtivos e adaptados as condicoes de cerrado do Estado de Goias e Distrito Federal. Foram conduzidos quatro experimentos de avaliacao de clones em grande escala, sendo: dois em Goiania-GO, um em Porangatu-GO e outro em Planaltina-DF. O delineamento experimental foi de blocos ao acaso, com 10 clones e tres repeticoes no experimento 1 de Goiania; 14 clones e quatro repeticoes no experimento 2 de Goiania; 10 clones e tres repeticoes no experimento de Porangatu; e 12 clones e quatro repeticoes no experimento de Planaltina. A parcela experimental foi constituida de 32 plantas, dispostas em quatro linhas de oito plantas, no espacamento de 0,8 m x...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Goiás; Distrito Federal; Brasil; Rubber crops; Desenvolvimento; Development; Rubber tree; Yield savannah.; Cerrado; Clone; Hevea; Produção; Seringueira.; Clones.; Brazil.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/555403

Ecophysiologie de la reproduction chez l'huître creuse, Crassostrea gigas
Provedor de dados: 5
Autores: Pouvreau, Stephane; Lepennec, M.
The reproductive cycle of Megathura crenulata was documented and quantification of oocyte lipid reserves with lipo-specific stains was explored in both this species and in Crassostrea gigas. The necessity of providing food to female broodstock C. gigas in spring was re-evaluated, because subsequent larval and post-larval rearing performance was not affected by broodstock starvation during conditioning. Developmental study of the organs responsible of particle processing in C. gigas allowed the identification of critical stages related to the ontogenesis of each organ, as well as a better understanding of the evolution of these organs, highly-modified in the Ostreidae. Ciliary type identification and mucocyte mapping from post-larval to adult stage showed...
Tipo: Text
Palavras-chave: Mucocytes; Mantle; Gill; Larvae postlarvae juveniles; Feeding; Crassostrea gigas; Megathura crenulata; Development; Reproduction; Mucocytes; Manteau; Branchie; Larves post larves juvéniles; Alimentation; Crassostrea gigas; Megathura crenulata; Développement; Reproduction.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/rapport-1867.pdf

A Global Mitigation Hierarchy for Nature Conservation
Provedor de dados: 5
Autores: Arlidge, William N. S.; Bull, Joseph W.; Addison, Prue F. E.; Burgass, Michael J.; Gianuca, Dimas; Gorham, Taylor M.; Jacob, Celine; Shumway, Nicole; Sinclair, Samuel P.; Watson, James E. M.; Wilcox, Chris; Milner-gulland, E. J.
Efforts to conserve biodiversity comprise a patchwork of international goals, national-level plans, and local interventions that, overall, are failing. We discuss the potential utility of applying the mitigation hierarchy, widely used during economic development activities, to all negative human impacts on biodiversity. Evaluating all biodiversity losses and gains through the mitigation hierarchy could help prioritize consideration of conservation goals and drive the empirical evaluation of conservation investments through the explicit consideration of counterfactual trends and ecosystem dynamics across scales. We explore the challenges in using this framework to achieve global conservation goals, including operationalization and monitoring and compliance,...
Tipo: Text
Palavras-chave: Adequacy; Biodiversity; Development; No net loss; Sustainability.
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00442/55323/56831.pdf

Endogenous regulation of 11-deoxycorticosterone (DOC) and corticosteroid receptors (CRs) during rainbow trout early development and the effects of corticosteroids on hatching.
Provedor de dados: 5
Autores: Kiilerich, Pia; Geffroy, Benjamin; Valotaire, Claudiane; Prunet, Patrick.
Clear evidence for a physiological role of the mineralocorticoid-like hormone 11-deoxycorticosterone (DOC) and the mineralocorticoid receptor (MR) in fish is still lacking. Efforts to demonstrate an osmoregulatory role for this hormone has so far not been conclusive, while a few scattered studies have indicated a role for DOC in development and reproduction. In this study, we investigate the onset of de novo DOC synthesis in parallel with endogenous corticosteroid receptor mRNA production from fertilization to the swim-up stage in rainbow trout. Whole egg DOC content decreased from fertilization until hatching followed by an increase to pre-fertilization levels just after hatching. Onset of de novo transcription of corticosteroid receptor mRNA’s was...
Tipo: Text
Palavras-chave: 11-Deoxycortieosterone; Cortisol; Mineralocorticoid receptor; Glucocorticoid receptor; Fish; Development.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00443/55506/57055.pdf

The Digestive Function of Pseudoplatystoma punctifer Early Juveniles Is Differentially Modulated by Dietary Protein, Lipid and Carbohydrate Content and Their Ratios
Provedor de dados: 5
Autores: Castro-ruiz, Diana; Andree, Karl B.; Solovyev, Mikhail M.; Fernández-méndez, Christian; García-dávila, Carmen; Cahu, Chantal; Gisbert, Enric; Darias, Maria J.
Pseudoplatystoma punctifer is an Amazonian catfish highly appreciated for its high flesh quality, size, and commercial value. Its aquaculture is pursued to satisfy the demands of an increasing population in the region. However, knowledge of the nutritional needs during the early life stages is necessary for improving growth and reducing the incidence of cannibalism, factors that limit the success of its commercial farming. This study aimed at evaluating the influence of four diets containing different protein and lipid levels (30:15, 30:10, 45:15, or 45:10 in %) in the digestive physiology and performance of early juveniles. The results showed that the dietary protein:lipid as well as carbohydrate levels and ratios influenced differently the whole-body...
Tipo: Text
Palavras-chave: Neotropical fish; Aquaculture; Digestive enzymes; Gene expression; Nutrition; Juveniles; Histology; Development; Macronutrients; Diet.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00678/79019/81420.pdf

Le développement de la mytiliculture sur filières en Bretagne. Bilan des travaux
Provedor de dados: 5
Autores: Omnes, Marie-helene.
Le bilan du suivi des élevages de moules sur filières montre l'évolution de cette nouvelle pratique culturale en Bretagne et met en évidence les difficultés qui demeurent un frein au développement et à l'extension de ce type d'élevage. Il s'agit en particulier de l'influence du milieu pour certains sites (contamination par le "Dinophysis"), de problèmes biologiques et surtout d'ordre pathologique, liés à de fortes infestations des moules par un vers parasite de la famille des trématodes et responsable de mortalités élevées pour les secteurs Sud-Bretagne. Le choix de l'espèce se précise : les producteurs se tournent vers l'élevage de la moule locale captée naturellement sur les installations. Celle-ci a une meilleure tenue sur les supports et à la...
Tipo: Text
Palavras-chave: Mytiliculture; Filières; Croissance; Trématodes; Développement; Mussel farming; Long-lines; Growth; Trematodes; Development.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00052/16310/13803.pdf

Fantastically plastic: fish larvae equipped for a new world
Provedor de dados: 5
Autores: Pittman, Karin; Yufera, Manuel; Pavlidis, Michail; Geffen, Audrey J.; Koven, Willian; Ribeiro, Laura; Zambonino, Jose Luiz; Tandler, Amos.
Teleost fish are more diverse than any other vertebrate group, and yet only a limited number of species are fished and farmed globally. Efforts to expand the quantity and diversity of fish produced are hampered by the extreme diversity of ontogenetic responses of fish, especially during larval development. This review looks at advances in molecular phylogeny, endocrine and nutrient influences and long-term studies of the phenotypes of commercially important fish to put the sources and consequences of this plasticity into context. This nested context of evolutionary forces of the fish-specific genome duplication, epigenetic influences, ontogenetically conserved processes like metamorphosis and cell determination is further presented in relation to how fish...
Tipo: Text
Palavras-chave: Development; Epigenetics; Fish-specific genome duplication; Juveniles; Larvae; Metamorphosis; Plasticity.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00144/25509/23655.pdf

Influence of environmental conditions on early development of the hydrothermal vent polychaete Alvinella pompejana
Provedor de dados: 5
Autores: Pradillon, F; Le Bris, Nadine; Shillito, B; Young, C; Gaill, F.
Dispersal and colonisation processes at deep-sea vents are still not fully understood, essentially because early life stages of vent species remain unknown. The polychaete worm Alvinella pompejana forms colonies on chimney walls at East Pacific Rise vent sites where the temperature can frequently exceed 20 degrees C. In vitro studies in pressure vessels showed that the early embryos tolerate temperatures in a lower range (10-14 degrees C), suggesting that they would have to escape the colony to develop. Pressure vessels offer the advantage that each parameter can be independently controlled, but they do not simulate the more complex and dynamic conditions naturally encountered at vent sites. Accordingly, in addition to incubations in pressure vessels, we...
Tipo: Text
Palavras-chave: Environmental condition; H2S; Temperature tolerance; Polychaete; Pressure vessel; Embryo; Development; Hydrothermal vent.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-600.pdf

Structural and functional characterizations of an Activin type II receptor orthologue from the pacific oyster Crassostrea gigas
Provedor de dados: 5
Autores: Le Quere, Herve; Herpin, Amaury; Huvet, Arnaud; Lelong, Christophe; Favrel, Pascal.
Members of the Transforming Growth factor beta (TGF-beta) superfamily of cell signalling polypeptides are known to play important roles in cell proliferation and differentiation during development and in various physiological processes of most animal clades. Recent findings in the mollusc Crassostrea gigas demonstrate the occurrence of a diversity of TGF-beta signalling components including various ligands, three type I receptors but only a single type II receptor. This report describes the characterization of Cg-ActRII, a new type II receptor displaying homology with vertebrate and Drosophila Activin type II receptors. The use of zebrafish embryo as a reporter organism revealed that, in a way similar to its zebrafish counterpart, overexpression of...
Tipo: Text
Palavras-chave: Activin receptor; Nervous tissues; Development; Lophotrochozoa; Mollusc.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6401.pdf

A review of the economic status of molluscs - shellfish culture
Provedor de dados: 5
Autores: Troadec, Jean-paul.
To describe the value of shellfish culture in economic and social terms and evaluate its potential for expansion by identifying and ranking the major constraints and the ways in which research and development can overcome them.
Tipo: Text
Palavras-chave: Social; Economic; Development; Value of shellfish culture.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-6222.PDF

Etat de l'environnement sur la facade atlantique
Provedor de dados: 5
Autores: Mauvais, Jean-louis; Goarnisson, Roger.
This document was drawn up by a working group and based upon forecasting considerations concerning the Atlantic seaboard. Within can be found a summary of different issues affecting the coastline : inputs, estuaries, green tides, spreading species, wetlands, state of biological resources, sand and gravel as well as hydrocarbon extraction, development consequences, coastline evolution, littoral landscapes, large-size debris. This report summarizes coastline monitoring as well : the marine national monitoring network, microbiological surveillance of beaches and zones of shellfish production, plytoplankton monitoring, shellfish growth.  Lastly, this document discusses proposed actions for the improvement of water quality by the Water Agencies of...
Tipo: Text
Palavras-chave: Bacterial pollutions; Chemical pollutions; Marine aggregates; Biological marine resources; Spreading species; Green tides; Estuaries; Monitoring; Development; Coastline environment; Pollutions bactérienne; Pollutions chimique; Granulats marins; Ressources vivantes marines; Espèces proliférantes; Marées vertes; Estuaires; Surveillance; Aménagement; Environnement littoral.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/rapport-1097.pdf

Ontogeny of the gastrointestinal tract of marine fish larvae
Provedor de dados: 5
Autores: Zambonino, Jose-luis; Cahu, Chantal.
Marine fish larvae undergo major morphological and cellular changes during the first month of life. The ontogeny of the gastrointestinal tract combines these two aspects of the larval development and is very interesting in that the timing of functional changes appears genetically hard-wired. The goal of this paper is to give an overview of the gastrointestinal development process in marine fish larvae, with particular attention to three species: sea bass; red drum; and sole, since the description of gut maturation in fish larvae was initiated during the last decade with these species. During the early stages, marine fish larvae exhibit particular digestive features. Concerning the exocrine pancreas, amylase expression decreases with age from the third week...
Tipo: Text
Palavras-chave: Proteins; Pancreatic enzymes; Lipids; Larvae feeds; Intestinal enzymes; Glucides; Fish larvae; Enzyme expression; Digestion; Development; Aquaculture.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/publication-650.pdf

Oyster vasa-like gene as a marker of the germline cell development in Crassostrea gigas
Provedor de dados: 5
Autores: Fabioux, Caroline; Huvet, Arnaud; Lelong, C; Robert, Rene; Pouvreau, Stephane; Daniel, Jean-yves; Mingant, Christian; Le Pennec, M.
The oyster vasa-like gene was previously demonstrated to be specifically expressed in germline cells of adult oysters Crassostrea gigas. In the present study, this gene was used as a molecular marker to establish the developmental pattern of germline cells during oyster ontogenesis. using whole-mount in situ hybridization and real-time PCR. The Oyvlg transcripts appeared to be localized to the vegetal pole of unfertilized oocytes and maternally transmitted to embryos. At early development, these maternal transcripts were observed to segregate into a single blastomere, from the CD macromere of 2-cell stage to the 4d mesentoblast of blastula. From late blastula stage, the mesentoblast divided into two cell clumps that migrated to both sides of the larvae...
Tipo: Text
Palavras-chave: Primordial germ cells; Oyster vasa like gene; Germline; Development; Crassostrea gigas.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-648.pdf

Evolutionary and Cardio‐Respiratory Physiology of Air‐breathing and Amphibious Fishes
Provedor de dados: 5
Autores: Damsgaard, Christian; Baliga, Vikram B.; Bates, Eric; Burggren, Warren; Mckenzie, David; Taylor, Edwin; Wright, Patricia A.
Air‐breathing and amphibious fishes are essential study organisms to shed insight into the required physiological shifts that supported the full transition from aquatic water‐breathing fishes to terrestrial air‐breathing tetrapods. While the origin of air‐breathing in the evolutionary history of the tetrapods has received considerable focus, much less is known about the evolutionary physiology of air‐breathing among fishes. This review summarises recent advances within the field with specific emphasis on the cardiorespiratory regulation associated with air‐breathing and terrestrial excursions, and how respiratory physiology of these living transitional forms are affected by development and personality. Finally, we provide a detailed and re‐evaluated model...
Tipo: Text
Palavras-chave: Development; Evolution; Phenotypic plasticity; Terrestrialization; Water-to-air transition.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00588/70029/67946.pdf

Bases biologiques de la production de deux Mollusques d'intérêt économique: reproduction chez Megathura crenulata, reproduction et développement chez Crassostrea gigas
Provedor de dados: 5
Autores: Cannuel, Rozenn.
The reproductive cycle of Megathura crenulata was documented and quantification of oocyte lipid reserves with lipo-specific stains was explored in both this species and in Crassostrea gigas.  The necessity of providing food to female broodstock C. gigas in spring was re-evaluated, because subsequent larval and post-larval rearing performance was not affected by broodstock starvation during conditioning.  Developmental study of the organs responsible of particle processing in C. gigas allowed the identification of critical stages related to the ontogenesis of each organ, as well as a better understanding of the evolution of these organs, highly-modified in the Ostreidae. Ciliary type identification and mucocyte mapping from post-larval to adult stage showed...
Tipo: Text
Palavras-chave: Mucocytes; Mantle; Gill; Larvae postlarvae juveniles; Feeding; Crassostrea gigas; Megathura crenulata; Development; Reproduction; Mucocytes; Manteau; Branchie; Larves post larves juvéniles; Alimentation; Crassostrea gigas; Megathura crenulata; Développement; Reproduction.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/these-1371.pdf

Shellfish culture in France : present status and new approaches to optimise production
Provedor de dados: 5
Autores: Goulletquer, Philippe.
France is presently one of the leading countries in Europe for shellfish production with 152,000 metric tonnes of the Pacific cupped oyster C. gigas, 2,500 tonnes of flat oyster O. edulis, and more than 60,000 tonnes of mussels M. edulis and  M. galloprovincialis. Moreover, species like the pearl oyster Pinctada margaritifera in French Polynesia, and on the Atlantic coastline the scallop Pecten maximus and the Manila clam Tapes philippinarum contribute significantly to the overall landings. .  Since traditional rearing areas are now almost overloaded, new management practices are currently under review to optimise and develop shellfish culture. Besides the products resulting from genetic research (e.g. triploids, tetraploids and disease resistant strains),...
Tipo: Text
Palavras-chave: Coastal management; Development; Research; Traditional osyter ponds; Semi intensive technique; Shellfish industry.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/1998/acte-3094.pdf

Measuring Histone Modifications in the Human Parasite Schistosoma mansoni.
Provedor de dados: 5
Autores: De Carvalho Augusto, Ronaldo; Roquis, David; Al Picard, Marion; Chaparro, Christian; Cosseau, Celine; Grunau, Christoph.
DNA-binding proteins play critical roles in many major processes such as development and sexual biology of Schistosoma mansoni and are important for the pathogenesis of schistosomiasis. Chromatin immunoprecipitation (ChIP) experiments followed by sequencing (ChIP-seq) are useful to characterize the association of genomic regions with posttranslational chemical modifications of histone proteins. Challenges in the standard ChIP protocol have motivated recent enhancements in this approach, such as reducing the number of cells required and increasing the resolution. In this chapter, we describe the latest advances made by our group in the ChIP methods to improve the standard ChIP protocol to reduce the number of input cells required and to increase the...
Tipo: Text
Palavras-chave: Native chromatin immunoprecipitation; ChIPmentation; Histone modifications; Schistosomiasis; Trematode; Development.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00653/76553/77671.pdf

Gene expression pattern of digestive and antioxidant enzymes during the larval development of reared Atlantic bluefin tuna (ABFT), Thunnus thynnus L.
Provedor de dados: 5
Autores: Mazurais, David; Coves, Denis; Papandroulakis, Nikos; Ortega, Aurelio; Desbruyeres, Elisabeth; Huelvan, Christine; Le Gall, Marie-madeleine; De La Gandara, Fernando; Cahu, Chantal.
The aim of this study was to determine whether mortality observed during the larval development of reared bluefin tuna (Thunnus thynnus) could be related to improper expression profiles of key genes involved in digestive or antioxidant response capabilities. Tuna larvae were sampled at hatching, 2, 5, 10, 15 and 20 dph (days post hatching) for the relative quantification of transcripts encoded by genes involved in digestive [trypsinogen 1 (TRYP1), alpha-amylase (AMY), aminopeptidase N (ANPEP)] and antioxidant [catalase (CAT)] functions. The levels of expression of ANPEP related to the development and maturation of intestinal function increased from 5 to 20 dph. Furthermore, AMY and TRYP1 genes, which are pancreatic enzymes implicated in carbohydrate and...
Tipo: Text
Palavras-chave: Tuna; Gene; Expression; Development; Digestion; Antioxidant.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00171/28264/26521.pdf

Gene expression patterns during the larval development of European sea bass (Dicentrarchus labrax) by microarray analysis
Provedor de dados: 5
Autores: Darias, Maria J.; Zambonino, Jose-luis; Hugot, K; Cahu, Chantal; Mazurais, David.
During the larval period, marine teleosts undergo very fast growth and dramatic changes in morphology, metabolism, and behavior to accomplish their metamorphosis into juvenile fish. Regulation of gene expression is widely thought to be a key mechanism underlying the management of the biological processes required for harmonious development over this phase of life. To provide an overall analysis of gene expression in the whole body during sea bass larval development, we monitored the expression of 6,626 distinct genes at 10 different points in time between 7 and 43 days post-hatching (dph) by using heterologous hybridization of a rainbow trout cDNA microarray. The differentially expressed genes (n = 485) could be grouped into two categories: genes that were...
Tipo: Text
Palavras-chave: Sea bass; Gene expression; Microarray; Development; Fish larvae.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4344.pdf

GigaTON: an extensive publicly searchable database providing a new reference transcriptome in the pacific oyster Crassostrea gigas
Provedor de dados: 5
Autores: Riviere, Guillaume; Klopp, Christophe; Ibouniyamine, Nabihoudine; Huvet, Arnaud; Boudry, Pierre; Favrel, Pascal.
Background: The Pacific oyster, Crassostrea gigas, is one of the most important aquaculture shellfish resources worldwide. Important efforts have been undertaken towards a better knowledge of its genome and transcriptome, which makes now C. gigas becoming a model organism among lophotrochozoans, the under-described sister clade of ecdysozoans within protostomes. These massive sequencing efforts offer the opportunity to assemble gene expression data and make such resource accessible and exploitable for the scientific community. Therefore, we undertook this assembly into an up-to-date publicly available transcriptome database: the GigaTON (Gigas TranscriptOme pipeliNe) database. Description: We assembled 2204 million sequences obtained from 114 publicly...
Tipo: Text
Palavras-chave: Oyster; Transcriptome; Development; Stress; Tissues; NGS.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00302/41321/40520.pdf

De novo assembly and annotation of the European abalone Haliotis tuberculata transcriptome
Provedor de dados: 5
Autores: Harney, Ewan; Dubief, Bruno; Boudry, Pierre; Basuyaux, Olivier; Schilhabel, Markus B.; Huchette, Sylvain; Paillard, Christine; Nunes, Flavia.
The European abalone Haliotis tuberculata is a delicacy and consequently a commercially valuable gastropod species. Aquaculture production and wild populations are subjected to multiple climate-associated stressors and anthropogenic pressures, including rising sea-surface temperatures, ocean acidification and an emerging pathogenic Vibrio infection. Transcript expression data provides a valuable resource for understanding abalone responses to variation in the biotic and abiotic environment. To generate an extensive transcriptome, we performed next-generation sequencing of RNA on larvae exposed to temperature and pH variation and on haemolymph of adults from two wild populations after experimental infection with Vibrio harveyi. We obtained more than 1.5...
Tipo: Text
Palavras-chave: RNA-Seq; Mollusca; Gastropoda; Development; Vibrio harveyi; Climate change.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00318/42940/45103.pdf

The development of marine fish farming in europe : a parallel with salmon culture
Provedor de dados: 5
Autores: Harache, Yves; Paquotte, Philippe.
This paper is aimed at analysing the similar trends and different constraints which influence marine fish farming of new species such as sea-bass, sea-bream and turbot in Europe in comparison with the Norwegian salmon farming success. In a general context of low progression, European aquaculture has been characterised by the development of  intensive fish farming. The most notable fact is the recent increase in intensive salmonid farming,  with a turnover of almost 2 millions Ecu. More recently, the intensive farming of sea bass and sea bream has increased very rapidly in the Mediterranean Basin, although on a more reduced extent. Turbot farming is developing slowly too on the French and Spanish Atlantic coast, taking benefit of the temperate climate in...
Tipo: Text
Palavras-chave: Europe; Environment; Marketing; Development; Aquaculture; SEM.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/acte-4069.pdf

Contribution à l'étude de l'ontogenèse du système immunitaire chez l'huître creuse Crassostrea gigas
Provedor de dados: 5
Autores: Tirape Bajana, Ana.
The interest for the understanding of the immune mechanisms in the oyster, Crassotrea gigas has been considerably increased these last years, mainly because of economie losses due to diseases which affected the continuity of this species. The studies of these mechanisms contributes to a better understanding of the differential susceptibilities observed in this species against various pathogens. In the present study, our  goal was to define the ontogenesis of immune system in C. gigas during the development, by functional genomic approaches. The studies have been focalized on the analyses of expression and localization of effectors previously identified in adult oysters as implicated in immunity. We have shown, in particular, that hemocytes appear in the...
Tipo: Text
Palavras-chave: Invertébré; Mollusque bivalve; Huître; Cra; Immunité; Hémocytes; Hématopoïèse; Développement; Ontogenèse; Expression des gènes; Q-PCR; SSH; Invertebrate; Bivalve Mollusk; Oyster; Crassostrea gigas; Immunity; Hemocytes; Hematopoiesis; Development; Ontogenesis; Gene expression; Q-PCR; SSH.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/00440/55113/56565.pdf

Lifecycle Ecology of Deep-Sea Chemosymbiotic Mussels: A Review
Provedor de dados: 5
Autores: Laming, Sven; Gaudron, Sylvie M.; Duperron, Sebastien.
Mussels within the subfamily Bathymodiolinae, in particular the larger Bathymodiolus species (sensu lato) thriving at cold seeps and hydrothermal vents, are among the most iconic fauna to colonize deep-sea reducing habitats globally. Fuelled by energy derived from chemosynthetic symbioses, their contribution to ecosystem productivity is conspicuous, with many bathymodioline species forming dense, extensive aggregates. Chemosymbiotic mussels play crucial roles as ecosystem engineers, both through the formation of spatially heterogeneous biogenic reefs and in redistributing reduced-fluid emissions. The notable absence of Bathymodiolinae outside of reducing ecosystems affirms their dependency on these ephemeral habitats, placing spatiotemporal constraints on...
Tipo: Text
Palavras-chave: Ontogeny; Bathymodiolinae; Nutrition; Development; Larvae; Symbiosis; Reducing habitats.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00477/58915/61478.pdf

Effect of dietary phospholipid level on the development of gilthead sea bream (Sparus aurata) larvae fed a compound diet
Provedor de dados: 5
Autores: Seiliez, I; Bruant, J; Zambonino, Jose-luis; Kaushik, Sadasivam; Bergot, Pierre.
The aim of the study was to determine the influence of dietary phospholipid (PL) levels on survival and development of first feeding gilthead sea bream (Sparus aurata) larvae. Larvae were fed from day 4 to 23 posthatching with an isoproteic and isolipidic formulated diet with graded levels of PL from 90-150 g kg(-1) dry matter (DM). A dietary PL content of more than 90 g kg(-1) DM seems to be necessary for sustaining growth of first feeding sea bream larvae. The survival rates of larvae fed the formulated diets (31-40% at day 23) were similar to those generally observed in marine aquaculture hatcheries with live prey feeding sequence. However, this high survival rate was not associated with high growth and the larvae showed, at the end of the study, a high...
Tipo: Text
Palavras-chave: Sparus aurata; Phospholipids; Larvae; First feeding; Development; Compound diet.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1869.pdf

Mandible Measurements and Dental Midline Deviation after Alveolar Nerve Transection in Growing Rabbits
Provedor de dados: 77
Autores: Valdivia Gandur,Iván; Tallón Walton,Victoria; Carvalho Lobato,Patricia; Lozano de Luaces,Vicente; Manzanares Céspedes,María Cristina.
The relationship between sensitive innervation and normal mandibular bone development has been described in the literature. Therefore, neural damage is a potential cause of osseous deformities, particularly in growing subjects. The aim of this project is to present the mandible measurements obtained after the transection of the inferior alveolar nerve of growing rabbits. A specific surgical protocol was designed to carry out the unilateral nerve transection by avoiding musculoskeletal injuries. Twenty New Zealand White rabbits one week post-weaning were used, 12 as an experimental group and 8 as a control group (Sham operated). The animals were sacrificed 90 days postoperatory, and the mandibles carefully dissected. Dental midline deviation data were...
Tipo: Journal article
Palavras-chave: Mandible; Growth; Development; Anatomy; Dissection; Stomatognathic system.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000100008

Calcium Levels in the Maxillae of Human Foetuses
Provedor de dados: 77
Autores: Farah,Ghaus; Faruqi,N. A; Khan,H. S; Kirmani,F.
Calcium along with phosphorus and carbonate imparts hardness and strength to skeletal system. Most of the human studies in this context are based on informations in postnatal life. There are different theories to explain the manner in which the matrix of bone becomes impregnated with the two inorganic salts, calcium phosphate and calcium carbonate. In our study, 29 human foetuses were obtained from the museum section of Department of Anatomy, J .N. Medical College, Aligarh, and divided into five groups. Maxillae were cleaned by separating the soft tissue and dissolved in concentrated nitric acid to determine calcium. Results were analysed by using Student's 't' test. The most striking feature of our findings was a reduction in aforementioned relative...
Tipo: Journal article
Palavras-chave: Calcium; Foetus; Maxilla; Development; Facial Skeleton.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000100044

THE CONTRIBUTION OF THE AORTIC BRANCHES IN THE VASCULARIZATION OF CERVICAL REGIONS, DURING THE DEVELOPMENT OF THE NINE BANDED ARMADILLO (Dasypus Novemcinctus, L. 1758)
Provedor de dados: 77
Autores: Fantin Domeniconi,Raquel; Fernandes de Abreu,Mara Alice; Benetti,Edson José; da Silva Villaça,Jacqueline.
The work describes the origin, branching and distribution of aortic branches, during the development of the armadillo, experimental model in the study of human leprosy. Using contrast injection, the branches of the subclavial, common carotid and omocervical aa. were identified as to its cooperation in irrigation of the ventral, lateral, dorsal, costal cervicals regions, encephalic and the thyroid gland
Tipo: Journal article
Palavras-chave: Armadillo; Irrigation; Cervical regions; Anatomy; Development.
Ano: 2004
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022004000200002

Histological Description of Morphogenesis of the Gastroesophageal Mucosa of Gallus gallus domesticus (Linnaeus, 1758)
Provedor de dados: 77
Autores: Ventura,Adriana; do Nascimento,Aparecida Alves; dos Santos,Marcos Antônio José; Vieira-Lopes,Danielle Alcântara; Sales,Armando; Pinheiro,Nadja Lima.
The ontogenesis of the gastroesophageal mucosa involves morphological alterations related to its structure and the function of each segment. The present study describes the histogenesis of the mucus-secreting epithelium and glands of the esophagus, gizzard, and proventriculus of the chicken (Gallus gallus), and identifies alterations in the secretion pattern of glycosaminoglycans (GAG's). We analyzed 38 chicken embryos, processed the material collected following the histological routine, and then stained it with hematoxylin-eosin for the analysis of tissue structure and with Gomori's trichrome for the identification of conjunctive tissue and collagen fibers. We used the PAS histochemical technique for the analysis of neutral GAG's and the AB pH 2.5...
Tipo: Journal article
Palavras-chave: Chicken embryos; Development; Glycosaminoglycans; Esophagus; Stomach.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000400030

Evaluation of Placental Epigenetic Changes due to Morphine Consumption
Provedor de dados: 77
Autores: Kazemi,Masoomeh; Tekieh,Elaheh; Golabi,Sahar; Sahraei,Hedayat.
Based on previous studies, a variety of bioenvironmental elements including inappropriate nutrition, diseases, infections, stressors, and medications are involved in epigenetic changes. Drug abuse is one of the most important causes of epigenetic changes and a concern in today's world. Studies have shown that morphine use by pregnant mothers causes several disorders in mothers in addition to transferring abnormalities to the next generation (placenta and embryo). Epigenetic factors such as morphine cause changes in gene expression in placenta as the first embryonic defense barrier. Because placenta does all the nutritional exchanges between mother's and embryo's blood, placental health guarantees normal embryonic development. Many studies have been...
Tipo: Journal article
Palavras-chave: Development; Morphine; Embryo; Epigenetic; Pregnancy; Placenta.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100036

The Morphological Observations of Some Lingual Papillae in the Prenatal and Prepuberal Stages of Red Sokoto Goats (Capra hircus)
Provedor de dados: 77
Autores: Igbokwe,C. O; Okolie,C.
This study was carried out to investigate the morphological development of the tongue in the foetal and prepubertal stages of Red Sokoto goats by light microscopy. In foetuses of about 50 days, the tongue tissues showed thickening of the epithelium into about 2-3 layers of cells. In fetuses of about 65 days, mesenchymal tissue was observed under the epithelium.Rudiments of some papillae were observed at this time. Collagenous fibre and blood vessels were scant in the lamina propria. In the 80-day-old foetuses, their was further differentiation of the epithelium rudiments into some papillae and this continued to mature until in foetuses of about 90 and 110 days, were early rudiments of taste buds were observed. Evidence of keratinization was apparent in the...
Tipo: Journal article
Palavras-chave: Development; Lingual papilla; Red Sokoto goats.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000100026

Multiple Variations of Extensor Muscles of Forearm in Relation to the Radial Nerve: a Case Report and Review
Provedor de dados: 77
Autores: Prakash,; Rai,Rajalakshmi; Ranade,Anu Vinod; Prabhu,Latha V; Pai,Mangala M; Gajendra,Singh.
During routine dissection in the Department of Anatomy, multiple variations of forearm muscles in relation to the radial nerve and its branches were observed on the right side of a 34 year old male cadaver. Brachioradialis close to its origin was receiving muscle fibers from the brachialis and the radial nerve was passing in between them. Extensor carpi radialis brevis was absent and the extensor carpi radialis longus was giving two tendons in the second compartment of extensor retinaculum before its insertion while passing deep to the abductor pollicis longus. Absence of extensor carpi radialis brevis can be explained with the arrangement in lower mammals, where the two extensores carpi radiales are represented by one muscle. Ontogeny repeats phylogeny...
Tipo: Journal article
Palavras-chave: Anatomical variations; Development; Extensor carpi radialis longus and brevis muscles; Forearm; Radial nerve.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000200034

RECOGNITION OF N-ACETYLGLUCOSAMINE (GLyNAc) AND POLY-N-ACETYLLACTOSAMINE RESIDUES IN VESSELS OF THE RAT PINEAL GLAND
Provedor de dados: 77
Autores: Ferreira-Medeiros,Mildred; Correa-Gillieron,Elenice.
Lectins are proteins with binding sites that recognize a specific sequence of sugar moieties in complex glycoconjugates. In the present study the tomato lectin ­ Lycopersicon esculentum (LEL) (a selective microglial and endothelial marker) has been reported to recognize specific residues of N-acetylglucosamine (GlyNAc) and poly-N-acetyllactosamine. In the pineal gland the biotinylated LEL was used to investigate the appearance of these sugar residues in the structures of the rats during their development and adult life. Our results showed that the binding of LEL occurred exclusively in the material adherents on surface of the endothelia of the vessels in the peripheral and central regions of the gland. An exception can be cited to rats in first postnatal...
Tipo: Journal article
Palavras-chave: Pineal; Rat; Lectins; Development; Rosettes; Endothelia.
Ano: 2004
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022004000400008

Morphometric Analysis of Infraorbital Foramen in Human Foetuses
Provedor de dados: 77
Autores: Farah,Ghaus; Faruqi,N. A.
A detailed knowledge of the anatomic morphometry of infraorbital groove, canal and foramen was necessary for a surgeon while performing maxillofacial surgery and regional block anaesthesia. Modern surgical procedures as well as anaesthesia require more precise understanding of the surrounding anatomy. The aim of the study was to establish morphometrically the infraorbital foramen size and location in human foetuses, the area where this information was scanty. Sixty maxillae were dissected out from thirty human foetuses. The latter were divided into five groups on the basis of age i.e. groups I(&lt;17 weeks IUL),II (17-20 weeks IUL), III (21-25 weeks IUL),IV (26-30 weeks IUL) and V (&gt;30 weeks IUL). Four parameters including transverse diameter and...
Tipo: Journal article
Palavras-chave: Infraorbital foramen; Morphometry; Human foetuses; Maxilla; Development.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000200009

Morphological Aspects of the Embryonic Development of the TMJ in Rats (Rattus norvegicus albinus) Treated With Fluoxetine
Provedor de dados: 77
Autores: Cavalcanti,Ully Dias Nascimento Távora; Baratella Evêncio,Liriane; Evêncio Neto,Joaquim; Castro,Raul Manhães de; Cardona,Aryana Soares; Melo,Marina Lins Maymone de; Lins,Rafael Claudino.
The TMJ has been to the Dental community a key point in the search of knowledge, being it part of the temporomandibular joint complex and of the estomatognathic system which are in charge of the mastication, speech, swallowing, as well as participation in breathing and taste perception. For the majority of the women in serious state of depression, which do not respond psychotherapeutic treatment, pharmacological treatment it's applied. The antidepressants serotonin selective reuptake inhibitors (SSRIs) are the most recommended in these cases. The teratogenic effect of the SSRIs is considered controversial, studies done with women who used these drugs during the pregnancy showed that the respiratory and central nervous systems are the most affected, was...
Tipo: Journal article
Palavras-chave: TMJ; Mandibular condyle; Serotonin; Fluoxetine; Development.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000300041

Androgen Receptor Distribution, PAS and Alcyan Blue Reaction in the Vomeronasal Organ and the Nasal Septum Mucosa of the Developing Male Rat
Provedor de dados: 77
Autores: Núñez Chichet,M E; Genovese,P; Bielli,A.
The vomeronasal organ (VNO) is a tubular chemoreceptory organ which detects environmental pheromones and is essential for mammalian normal reproductive activity. A sensitive chemoreceptory neuroepithelium lines the concave VNO wall and the opposite, convex wall is lined by a seudostratified, receptor-free epithelium. The secretion of the Jacobson glands (JG) -tubuloacinary glands lying in the lamina propia of the VNO - is essential for pheromones contacting vomeronasal organ chemoreceptors. Tubuloacinary glands lying in the connective tissue of the nasal septum mucosa (Bowman glands), can be classified as ventral and dorsal, according to their location. Positivity to PAS and Alcyan blue reactions and androgen receptor immunolocalization was evaluated with...
Tipo: Journal article
Palavras-chave: Vomeronasal organ; Chemoreception; Development; Histochemistry; Immunohistochemistry.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000300018

Supernumerary teeth in Necromys lasiurus (Rodentia, Cricetidae): the first record in sigmodontinae
Provedor de dados: 81
Autores: Simões Libardi,Gustavo; Reis Percequillo,Alexandre.
There are several kinds of anomalies related to the teeth reported in mammals, and one of them is known as supernumerary teeth and is commonly noticed in the literature, being reported in nearly all orders of mammals. Here, we report the occurrence of supernumerary molars in the sigmodontine rodent Necromys lasiurus, a common and widespread small rodent of tribe Akodontini. In order to assess the patterns of morphometric variation of N. lasiurus in eastern South America, we examined the skulls of 1763 specimens. The supernumerary molars were found in 2 individuals, which represent a frequency of 0.11%. The origin of super­numerary teeth started a long discussion on tooth homology, whether this anomaly is a result of heredity, a mutation or an atavism....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Akodontini; Brazil; Development; Extra teeth; Molar; Premolar.
Ano: 2014
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832014000200003

The fry patterns in the South-American catfish genus Corydoras (Pisces, Siluriformes, Callichthyidae)
Provedor de dados: 16
Autores: Fuller, Ian.
The fry pattern of aquarium-bred species of the South-American catfish genus Corydoras, contribute to discriminate between species of the so-called ‘acutus’-group, showing a greyish adult colour pattern.
Tipo: Article / Letter to the editor
Palavras-chave: Callichthyidae; Corydoras; Development; Colour pattern; South America.
Ano: 1999
URL: http://www.repository.naturalis.nl/record/505319

Something gone awry: unsolved mysteries in the evolution of asymmetric animal genitalia
Provedor de dados: 16
Autores: Schilthuizen, M.
The great diversity in genital shape and function across and within the animal phyla hamper the identification of specific evolutionary trends that stretch beyond the limits of the group under study. Asymmetry might be a trait in genital morphology that could play a unifying role in the evolutionary biology of genitalia. Here, I review the current knowledge on the taxonomic distribution, phylogenetic patterns, genetics, development, and ecology of asymmetric (chiral) genitalia. Asymmetric genitalia (male as well as female) have evolved from bilaterally symmetric ones (and sometimes vice versa), innumerous times in most animal taxa with internal fertilisation, and especially in Platyhelminthes, Arthropoda, Nematoda, and Chordata. In groups with asymmetric...
Tipo: Article / Letter to the editor
Palavras-chave: Chirality; Development; Enantiomorphs; Morphology; Sexual selection; Symmetry; 42.73.
Ano: 2013
URL: http://www.repository.naturalis.nl/record/445874

Left-right asymmetry in plants and animals: a gold mine for research
Provedor de dados: 16
Autores: Schilthuizen, M.; Gravendeel, B.
Left-right asymmetry patterns in the body shapes of animals and plants have been a continuous source of interest among biologists. Recently, inroads have been made to developing a coherent research programme that makes use of the unique fact that chiral patterns may be studied (and generalities deduced) by comparisons across many unrelated groups, even across Kingdoms. The papers delivered at the symposium ‘Evolution of Chirality’ during the 2011 European congress of evolutionary biology (ESEB) provide examples of the various research programs that are currently developing within this field. The present paper provides a summary of the symposium, an introduction to this Special Issue of Contributions to Zoology, as well as suggestions for further...
Tipo: Article / Letter to the editor
Palavras-chave: Chirality; Development; Evolution; Evo-devo; 42.21.
Ano: 2012
URL: http://www.repository.naturalis.nl/record/419170

Newly-discovered muscle in the larva of Patella coerulea (Mollusca, Gastropoda) suggests the presence of a larval extensor
Provedor de dados: 16
Autores: Damen, Peter; Dictus, Wim J.A.G.
The development of the muscular system of the gastropod mollusc Patella has been thoroughly studied. As a result, two larval retractors, the main and accessory larval retractor, had been described in the larva of Patella. These muscles were supposed to be responsible for the retraction of the larval body into the shell. Previously no larval extensors, which would be responsible for the extension of the larval body out of the shell, have been described. Using cell-lineage tracer injection and phalloidin staining of muscles, a newly-discovered muscle is herein identified in the larva of Patella coerulea. A functional model is presented in which two muscles are responsible for the extension of the larva, the newly-discovered muscle together with the...
Tipo: Article / Letter to the editor
Palavras-chave: Patella; Gastropoda; Mollusca; Development; Larva; Muscle; Antagonist; Cell-lineage.
Ano: 2002
URL: http://www.repository.naturalis.nl/record/534309

Morphology and biology of Porphyrosela minuta Clarke 1953 (Lepidoptera: Gracillariidae, Lithocolletinae) in Uruguay
Provedor de dados: 82
Autores: Bentancourt,Carlos M.; Scatoni,Iris B.
Porphyrosela minuta Clarke is a gracillariid that causes damage on white clover (Trifolium repens) in Uruguay. In this article, the eggs, all the larval instars, the pupa and the external morphological characteristics of the adult are described. Information about the insect's biology under laboratory and field conditions is presented. The eggs are laid singly on the upper surface of the leaflets. The larvae make extensive mines that appear as white blotches. The larvae develop through five instars and do not remain exposed during their development. At 25ºC the life cycle lasted 16.2 days, made up of 3.0 for eggs, 8.8 for larvae and 4.4 for pupae. Females began laying on the first night, and during an oviposition period that varied between five and 12 days...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insect; Leaf-miner; Description; Development; Reproduction.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000400005

Biological aspects of Autoplusia egena (Guenée) (Lepidoptera: Noctuidae, Plusiinae)
Provedor de dados: 82
Autores: Specht,Alexandre; Vogt,Tatiane G.; Corseuil,Elio.
Autoplusia egena (Guenée) is a moth distributed throughout the Western hemisphere. The larvae have already been found feeding on several different plant families, including important crops such soybeans and beans. To contribute to the knowledge of its biology in laboratory conditions, and considering the duration and the morphometry of each development stage, a laboratorial rearing was accomplished at 25 ± 1°C, 70 ± 10% RH and 14h photophase. The larvae were fed with black bean leaves and the adults were fed with a honey solution at 10%. The results, expressed by the mean (± SE), for the periods of each stage were: egg 3.0 ± 0.00 d; larva 15.7 ± 1.25 d; pre-pupa 1.9 ± 0.05 d; pupa 8.8 ± 0.09 d and adult: longevity 12.1 ± 0.95 d, pre-oviposition 5.4 ± 0.50...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Development; Insect; Morphometric; Phaseolus vulgaris; Semi-looper.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000100001

Qualidade de diferentes espécies de pulgões como hospedeiros do parasitóide Aphidius ervi Haliday (Hymenoptera: Braconidae: Aphidiinae)
Provedor de dados: 82
Autores: Sidney,Lívia A; Bueno,Vanda H P; Lins Jr,Juracy C; Silva,Diego B; Sampaio,Marcus V.
The suitability of Macrosiphum euphorbiae (Thomas), Aulacorthum solani (Kaltenbach) and Acyrthosiphon kondoi Shinji (Hemiptera: Aphididae) as hosts for the aphid parasitoid Aphidius ervi Haliday was evaluated by assessing host size, host preference, and host quality. Tests were carried out in an environmental chamber at 22 ± 1ºC, 70 ± 10% RH and 12h photophase. Replicates (11) consisted of one 24h-old mated female of A. ervi without a previous oviposition experience. Female was released into a Petri dish (5 cm) with 20 2nd and 3rd instars of one of each aphid species tested on a leaf disc of the host plant onto a 1% water-agar layer. Parasitoid emergency was lower in A. kondoi (78.7%) compared to M. euphorbiae (92.2%) and A. solani (91.7%). Acyrthosiphon...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Host quality; Development.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000500006

Life history and larval morphology of Eurhinus magnificus Gyllenhal (Coleoptera: Curculionidae), a new weevil to the United States
Provedor de dados: 82
Autores: Ulmer,Bryan J.; Duncan,Rita E.; Prena,Jens; Peña,Jorge E.
Eurhinus magnificus Gyllenhal has been collected in south Florida, presumably introduced through trade with countries in its native range. Very little information has been published on the biology or taxonomy of this insect. We conducted studies to investigate various aspects of its life history and host plant associations. The pre-imaginal life stages of E. magnificus are described for the first time. Dimensions of the adult, egg, larval, and pupal stages are also provided; head capsule measurement revealed five larval instars. All life stages of E. magnificus were collected at several sites in Broward and Miami-Dade counties from the host plant Cissus verticillata (L.) Nicolson &amp;amp; Jarvis (Vitaceae). Eggs were laid singly within the succulent,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Baridinae; Cissus; Development; Florida.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2007000300006

Early morphological variation and induction of phenotypic plasticity in Patagonian pejerrey
Provedor de dados: 83
Autores: Crichigno,Sonia A.; Battini,Miguel A.; Cussac,Víctor E.
The aim of this work was to study two aspects of phenotypic plasticity in the Patagonian pejerrey Odontesthes hatcheri (Teleostei: Atherinopsidae) the dependence of the early morphology on developmental time and temperature, and the induction of morphological changes by controlled feeding in juveniles. Newly hatched free embryos, incubated at two different temperatures (13 and 18oC), and juveniles were used for the study and induction of phenotypic plasticity. Body and head shapes were analyzed with geometric morphometrics and linear measurements. Our results showed that shape variation at hatching was related to the bending of the embryo head on the yolk sac, increasing the head-trunk angle due to progressive straightening of the embryo. The head-trunk...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atherinopsidae; Development; Feeding; Morphometry; Odontesthes hatcheri.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000200009

Sustainable agriculture for economic development - case of East Africa -
Provedor de dados: 19
Autores: Koaze, Hiroshi; 小疇, 浩.
2005年8月4日とかちプラザ・レインボーホールで開催､日本ユネスコ国内委員会主催の帯広農村開発教育国際セミナー(OASERD)国際連合ユネスコアジア太平洋地域教育開発計画事業(APEID)シンポジウム「地球にやさしい農業をめざして :　資源リサイクルを利用した持続可能な食糧生産－」講演資料
Palavras-chave: Sustainable; Agriculture; Sub-Sahara; Africa; Economic; Development; Poverty reduction.
Ano: 2005
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1896

Cage evaluation of augmentative biological control of Thrips palmi with Wollastoniella rotunda in winter greenhouses
Provedor de dados: 19
Autores: Nakashima, Yoshitaka; Uefune, Masayoshi; Tagashira, Eiko; Maeda, Seiko; Shima, Katsuya; Nagai, Kazuya; Hirose, Yoshimi; Takagi, Masami.
Cage trials of an anthocorid predator, Wollastoniella rotunda Yasunaga et Miyamoto, as a biological control agent of Thrips palmi Karny were conducted in Fukuoka, Japan, under winter greenhouse production conditions. Females of W. rotunda were released on caged eggplants, and placed in two greenhouses on 27 October. The development, population growth, and effectiveness of W. rotunda were observed until early March. Results from the cage trials showed that W. rotunda successfully developed, reproduced, and suppressed T. palmi populations under the conditions found in winter greenhouses. During the experiment, one full generation and a second generation of adult predators occurred. The T. palmi population which was exposed to predators remained at a low...
Palavras-chave: Reproductive diapause; Photoperiod; Development; Winter; Wollastoniella rotunda; Orius; Biological control; Thrips palmi; Solanum melongena; Dicyphus tamaninii; Frankliniella occidentalis; Piocoris varius.
Ano: 2004
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/808

African Aquaculture: A Regional Summary with Emphasis on Sub-Saharan Africa
Provedor de dados: 20
Autores: Moehl, J.; Machena, C.
The African Region consists of 48 countries and five island nations, most of which are practising some form of aquaculture, often at a very low level. Over half the countries report producing less than 100 mt annually. The largest producer is Nigeria (17 700 mt) followed by Madagascar (5 100 mt) and Zambia (4 700 mt). The 1997 combined aquaculture production of the region was 40 300 mt. Aquaculture is estimated to be 95 percent small scale, with fish ponds integrated into the mosaic of agricultural activities. Mean yield is approximated as 500 kg/ha/yr, although the range is wide, from less than a hundred to more than 10 000 kg/ha/yr. A typical scenario would be a 300 m2 pond producing 15 kg a year relying on family labour and on-farm inputs. There is...
Tipo: Proceedings Paper
Palavras-chave: Fish Farming; Aquaculture; Sub-Saharan Africa; Development; Africa; Aquaculture.
Ano: 2000
URL: http://hdl.handle.net/1834/371

Obstacles To The Development Of Small Scale Fish Trade In West Africa
Provedor de dados: 20
Autores: Tall, A.
Background information is presented of the importance of the artisanal fisheries sector in West Africa in terms of income and employment generation, foreign exchange earning and as a major supplier of animal protein to low income urban dwellers and the rural poor. Processing methodologies of smoking, salting/drying and fermentation is still traditional although improved technologies are being introduced and gradually adopted and coupled with a few semi-industrial processors to produce a final product with preferred tastes and market preferences. West Africa artisanal fisheries could benefit considerably from increased trade to the so called "ethnic market" in Europe, USA and other developed countries. Some key trading routes have been identified for the...
Tipo: Conference Material
Palavras-chave: Development; Cured products; Tariff bariers; Fish trade channels; Artisanal sector; Small scale fishing; Artisanal fishing.
Ano: 2002
URL: http://hdl.handle.net/1834/745

POST-EMBRYONIC DEVELOPMENT OF INTRAMANDIBULAR GLANDS OF FRIESELLA SCHROTTKYI (FRIESE, 1900) (HYMENOPTERA: APIDAE) WORKERS
Provedor de dados: 84
Autores: OLIVEIRA,ANDRÉ HENRIQUE DE; LISBOA,LUCIANE CRISTINA DE OLIVEIRA; SERRÃO,JOSÉ EDUARDO; ZANUNCIO,JOSÉ COLA; SOUZA,EDMILSON AMARAL DE.
ABSTRACT Exocrine glands play important role in social organization of insects, such as caste and inter-caste differentiation. Due their functional and structural plasticity, morphological studies on such glands contribute to better understanding the biology of social bees. Therefore, the aim of the study was to characterize the sequence of the post-embryonic development of intramandibular glands of Friesella schrottkyi (Friese, 1900) (Hymenoptera: Apidae) workers using histological and histochemical analyses. The mandibles of pupae at different developmental stages and newly emerged adults were analyzed. The intramandibular glands of F. schrottkyi presented two types: class I glands, in the mandible epidermis and class III glands, inside the mandible...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exocrine glands; Morphology; Development; Stingless bees.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492017002500321

Description of the first juvenile stage of the fiddler crab Minuca mordax (Smith, 1870) (Crustacea, Decapoda, Ocypodidae)
Provedor de dados: 84
Autores: Martins,Salise Brandt; Marochi,Murilo Zanetti; Masunari,Setuko.
ABSTRACT The first stage of the fiddler crab Minuca mordax is described here. Zoea larvae obtained from four ovigerous female were reared in the laboratory until the development of the first crab stage. The development from zoea I to the first juvenile instar lasted 35 days after hatching. The first crab stage of Minuca mordax can be morphologically distinguished from those of Minuca burgersi and Leptuca cumulanta by a 2-segmented antennule endopod (3-segmented in M. burgersi, unsegmented in L. cumulanta), an unsegmented maxillule endopod (2-segmented in M. burgersi and L. cumulanta), and a 4-segmented first and second maxilliped endopod (respectively unsegmented and 5-segmented in M. burgersi and L. cumulanta). The three species have the following...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Juvenile morphology; Development; Mangrove; Guaratuba Bay.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492016001400163

Simulating maize phenology as a function of air temperature with a linear and a nonlinear model
Provedor de dados: 86
Autores: Streck,Nereu Augusto; Lago,Isabel; Gabriel,Luana Fernandes; Samboranha,Flavia Kaufmann.
The objective of this study was to adapt a nonlinear model (Wang and Engel - WE) for simulating the phenology of maize (Zea mays L.), and to evaluate this model and a linear one (thermal time), in order to predict developmental stages of a field-grown maize variety. A field experiment, during 2005/2006 and 2006/2007 was conducted in Santa Maria, RS, Brazil, in two growing seasons, with seven sowing dates each. Dates of emergence, silking, and physiological maturity of the maize variety BRS Missões were recorded in six replications in each sowing date. Data collected in 2005/2006 growing season were used to estimate the coefficients of the two models, and data collected in the 2006/2007 growing season were used as independent data set for model evaluations....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Degree days; Development; Modeling; Thermal time.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008000400002

Biological aspects of Harmonia axyridis in comparison with Cycloneda sanguinea and Hippodamia convergens
Provedor de dados: 86
Autores: Santos,Laís da Conceição dos; Santos-Cividanes,Terezinha Monteiro dos; Cividanes,Francisco Jorge; Matos,Sidnéia Terezinha Soares de.
The objective of this work was to evaluate the development, survival, reproductive capacity, and longevity of the Asian ladybug Harmonia axyridis in comparison with Cycloneda sanguinea and Hippodamia convergens. Coccinellid larvae and adults were fed daily with Schizaphis graminum. Ten couples of each species were isolated for evaluation of the adult phase. The duration of the larval stage of H. axyridis is the longest (10.2 days) and its adults are the heaviest (29.7 mg) compared with C. sanguinea and H. convergens. The three species showed similar percentages of survival during the developmental stages. An average of 82% of C. sanguinea, H. axyridis, and H. convergens larvae reached adulthood, which indicates that temperature (25°C) and the offered prey...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Coccinellid; Development; Longevity; Ladybug; Predator.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013001100001

Morphometric and allometric relations of cage-reared Iguaçu surubim
Provedor de dados: 86
Autores: Feiden,Aldi; Signor,Altevir; Boscolo,Wilson Rogério; Reidel,Adilson; Coldebella,Anderson; Signor,Arcangelo Augusto; Klein,Sidnei.
The objective of this work was to evaluate the morphometric and allometric relations of Iguaçu surubim (Steindachneridion melanodermatum) cultivated in net cages. One hundred and twenty specimens were cultivated at a density of 50 fish per square meter in three 6 m³ net cages. Fish were fed three times a day with commercial feed. Thirty fish were evaluated at 60, 120, 180, and 360 days of cultivation as to the variables: total body, head, clean trunk, viscera, skin, and fin weight; total, standard, and head length; and head and body height. The Iguaçu surubim shows later development of the clean trunk and early development of the other body parts.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Steindachneridion melanodermatun; Body weight; Development; Processing; Weight class; Yield.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000800055

Application of Wireless Power Transmission Led Lighting System in Propagation of Chrysanthemum and Strawberry
Provedor de dados: 87
Autores: NAM,N.B.; HUY,N.P.; LUAN,V.Q.; TUNG,H.T.; NHUT,D.T.
ABSTRACT Wireless power transmission has been recently used to charge batteries in portable devices. This is the first study to combine this technology with light-emitting diodes (WPT-LP) for plant tissue culture application. We also present the comparison of the in vitro growth of chrysanthemum and strawberry plantlets under the new LED lighting system; LED - Uni-Pack (LP) system; LED tube and fluorescent light (FL). The results showed that fresh weight (1.42 g), dry weight (118.67 mg), plant height (5.68 cm), leaf area (3.59 cm2) and chlorophyll content (47.9 μg g-1) of chrysanthemum plantlets under the WPT-LP system were higher than those under FL and LED tube. Similar results were also recorded on the strawberry plantlets. Our results suggested that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chrysanthemum; Development; Growth; LEDs; Photosynthetic photon flux density; Wireless power transfer.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000400617

Protected areas, tourism and development of the countryside
Provedor de dados: 31
Autores: Zurc,   Jana.
Paper replaced 11/2/10.
Tipo: Conference Paper or Presentation
Palavras-chave: Protected areas; Development; Tourism; Slovenia; Community/Rural/Urban Development; Q01; Q56; Q57.
Ano: 2010
URL: http://purl.umn.edu/95306

Analysis on the Development Trend of Oasis Subject and Its Countermeasures
Provedor de dados: 31
Autores: Wang,   Kaiyong; Yang,   Le; Pang,   Wei; Pan,   Xudong; Zhang,   Fenghua.
The research status, development and trend of oasis subject were analyzed, and related countermeasures to develop oasis subject were put forward.
Tipo: Thesis or Dissertation
Palavras-chave: Oasis subject; Subject; Development; Construction; China; Environmental Economics and Policy; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods.
Ano: 2009
URL: http://purl.umn.edu/53602

Poverty and Distribution: Twenty Years Ago and Now
Provedor de dados: 31
Autores: Kanbur,   Ravi.
This paper adopts the “Rip Van Winkle” stratagem, of asking what differences would be noticed, in the domain of poverty and distribution, by someone who fell asleep in 1987 (the year I published my paper on poverty in the IMF Staff Papers, and woke up only in 2007 (the year I visited the IMF to work on the present paper). I highlight, somewhat idiosyncratically, ten such differences under three broad headings: Facts and Empirics, Concepts and Theory, and Policies and Interventions.
Tipo: Working or Discussion Paper
Palavras-chave: Poverty; Income Distribution; Development; Community/Rural/Urban Development; International Development; D31; D63; I32; I38; O15.
Ano: 2009
URL: http://purl.umn.edu/48918

THE IMPACT OF INFORMATION ON LAND DEVELOPMENT: A DYNAMIC AND STOCHASTIC ANALYSIS
Provedor de dados: 31
Autores: Batabyal,   Amitrajeet A.
In a two-period model, economists such as K.J. Arrow, A.C. Fisher, and C. Henry, have shown that when development is both indivisible and irreversible, a developer who ignores the possibility of obtaining new information about the outcome of such development will invariably underestimate the benefits of preservation and hence favor development. In this note, I extend the AFH analysis in two directions. I model the land development problem in a dynamic framework, explicitly specifying an information production function. In such a setting, I then ask and answer the question concerning when development should take place.  Forthcoming in Journal of Environmental Management
Tipo: Working or Discussion Paper
Palavras-chave: Development; Dynamic; Information; Uncertainty; Land Economics/Use; D82; Q20.
Ano: 1995
URL: http://purl.umn.edu/28356

Trade and Development When Exports Lack Diversification: A Case Study From Malawi
Provedor de dados: 31
Autores: Persaud,   Suresh Chand; Meade,   Birgit Gisela Saager.
Developing countries, particularly those that depend heavily on a small number of agricultural exports, are vulnerable to domestic and international shocks. These countries often have difficulty achieving sustained economic growth. This analysis uses Malawi, a country that earns most of its foreign exchange from tobacco, as a case study of export concentration and heavy exposure to volatility. The econometric results suggest that the decline in Malawi’s gross domestic product (GDP) when tobacco exports are falling is almost three times greater than the increase in GDP when exports are rising. Model-based simulations indicate that variability in tobacco exports leads to slower economic growth because GDP falls by a relatively large amount in response to a...
Tipo: Report
Palavras-chave: Malawi; Tobacco; Export-led growth; Asymmetry; Volatility; Productivity; Trade; Development; Marketing efficiency; Price transmission; Agribusiness; Agricultural and Food Policy; Agricultural Finance; Environmental Economics and Policy; Financial Economics; International Relations/Trade; Production Economics.
Ano: 2009
URL: http://purl.umn.edu/55943

Will Buying Tropical Forest Carbon Benefit The Poor? Evidence from Costa Rica
Provedor de dados: 31
Autores: Kerr,   Suzi; Lipper,   Leslie; Pfaff,   Alexander S.P.; Cavatassi,   Romina; Davis,   Benjamin; Hendy,   Joanna; Sanchez,   Arturo.
We review claims about the potential for carbon markets that link both payments for carbon services and poverty levels to ongoing rates of tropical deforestation. We then examine these effects empirically for Costa Rica during the 20th century  using an econometric approach that addresses the irreversibilities in deforestation. We find significant effects of the relative returns to forest on deforestation rates. Thus, carbon payments would induce conservation and also carbon sequestration, and if land users were poor could conserve forest while addressing rural poverty. However, we find poorer areas are less responsive to returns. This and  transaction costs could lead carbon payments policies not to be focused upon the poor. Other practical considerations...
Tipo: Working or Discussion Paper
Palavras-chave: Land Use; Deforestation; Poverty; Climate Change; Development; Costa Rica.; Resource /Energy Economics and Policy; I32; O13; Q51; Q54; Q56; Q31.
Ano: 2004
URL: http://purl.umn.edu/23807

Evaluation, Learning and Change in Research and Development Organizations: Concepts, Experiences, and Implications for the CGIAR
Provedor de dados: 31
Autores: Horton,   Douglas; Galleno,   Viviana; Mackay,   Ronald.
2nd edition
Tipo: Working or Discussion Paper
Palavras-chave: Learning; Evaluation; Change; ISNAR; Research; CGIAR; Development; Agricultural and Food Policy; Food Security and Poverty; Research and Development/Tech Change/Emerging Technologies.
Ano: 2007
URL: http://purl.umn.edu/52540

AGRICULTURAL FINANCING POLICIES AND RURAL DEVELOPMENT IN NIGERIA
Provedor de dados: 31
Autores: Eze,   Christopher C.; Lemchi,   J.I.; Ugochukwu,   Albert I.; Eze,   V.C.; Awulonu,   C.A.O.; Okon,   A.X.
The study examined the agricultural financing policies of the government of Nigeria and effects on rural development .The study found that though the government has made serious efforts at making good agricultural policies through schemes, programmes and institutions, it has not been able to back them up with adequate budgetary allocation and financing coupled with corruption in the execution of the policies. It is recommended that for the government agricultural financing policies to achieve its target of rural development, Nigeria will need an adequate level of strategically targeted investment in agriculture, upgrade rural infrastructure, boost productivity, and increase competitiveness of the farm output, in addition to fighting corruption.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural financing; Policies; Institutions; Rural; Development; International Development.
Ano: 2010
URL: http://purl.umn.edu/91677

Introduction of Rural Ecological Environment and Circular Economy Development Mode of Eco-agriculture and Forestry
Provedor de dados: 31
Autores: Su,   Jianlan; Lin,   Shiwen; Liu,   Na.
Major causes of ecological environment situation and rural environment issues in the construction of new socialist countryside in China are analyzed. Two necessities of introducing circular economy development mode of eco-agriculture and forestry into the construction of new socialist countryside are expatiated. One is the needs of the rural eco-environmental situation, and the other is to realize the fundamental change of agricultural growth mode. Specific characteristics, existing foundation and current resistance of the circular economy of eco-agriculture and forestry are studied. Major principles in introducing circular economy mode of eco-agriculture and forestry into the construction of new socialist countryside are presented. Support system for...
Tipo: Thesis or Dissertation
Palavras-chave: Ecological environment; Circular economy; Development; Introduction; China; Community/Rural/Urban Development; Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 2009
URL: http://purl.umn.edu/58485

Development in the Midst of Drought: Evaluating an Agricultural Extension and Credit Program in Nicaragua.
Provedor de dados: 31
Autores: Mullally,   Conner.
This paper measures the impact of year one of the Millennium Challenge Corporation’s Rural Business Development program for small rice farming households on the Pacific Coast of Nicaragua. The program was rolled out in the 2009-2010 agricultural year, which was the driest year on record in the region, likely due to an El Niño event. Estimated impacts show that the program at best had no effect, and at worst led to a 10 percent reduction in yields. These impacts are estimated using an econometric model which uses selection on observables as its identifying assumption, and robustness checks suggest that this is a reasonable approach in this case. Inference accounts for spatial correlation across households of the unobserved determinants of agricultural...
Tipo: Conference Paper or Presentation
Palavras-chave: Development; Impact evaluation; Agricultural extension; Rural credit; Spatial; International Development.
Ano: 2011
URL: http://purl.umn.edu/103799

Theme Overview: Rural Wealth Creation
Provedor de dados: 31
Autores: Pender,   John L.; Weber,   Bruce A.; Fawbush,   Wayne.
Tipo: Article
Palavras-chave: Community; Development; Economic; Prosperity; Rural; Wealth; Agricultural Finance; Community/Rural/Urban Development; R11; R12.
Ano: 2012
URL: http://purl.umn.edu/122799

On food quality in domestic markets of developing economies
Provedor de dados: 31
Autores: Vandeplas,   Anneleen; Minten,   Bart; Swinnen,   Johan F.M.
Food quality has become an important determinant of success in global food trade and growers for international markets have to continuously adjust to buyers’ requirements. It is however not clear to what extent there is a demand for food quality - and how much buyers are willing to pay for it - in the domestic food markets of developing economies. Based on unique price and trader data from domestic food markets in a poor country in Africa (Madagascar) and an emerging economy in Asia (India), we compare quality and quality’s pricing. We find significantly better quality and higher quality premia (using revealed as well as stated preference methods) in the richer country, probably leading to an impetus for the development of modern market channels in this...
Tipo: Conference Paper or Presentation
Palavras-chave: Food quality; Quality premia; Development; Agricultural and Food Policy; Q12; Q13; L15.
Ano: 2009
URL: http://purl.umn.edu/51700

Effects of Poverty on Deforestation: Distinguishing Behavior from Location
Provedor de dados: 31
Autores: Kerr,   Suzi; Pfaff,   Alexander S.P.; Cavatassi,   Romina; Davis,   Benjamin; Lipper,   Leslie; Sanchez,   Arturo; Timmins,   Jason.
We summarize existing theoretical claims linking poverty to rates of deforestation and then examine this linkage empirically for Costa Rica during the 20th century  using an econometric approach that addresses the irreversibilities in deforestation. Our data facilitate an empirical analysis of the implications for deforestation of where the poor live. Without controlling for this, impacts of poverty per se are confounded by richer areas being different from the areas inhabited by the poor, who we expect to find on more marginal lands, for instance less profitable lands.  Controlling for locations' characteristics, we find that poorer areas are cleared more rapidly.  This result suggests that poverty reduction aids forest conservation.
Tipo: Working or Discussion Paper
Palavras-chave: Land Use; Deforestation; Poverty; Climate Change; Development; Costa Rica.; Food Security and Poverty; I32; O13; Q51; Q54; Q56.
Ano: 2004
URL: http://purl.umn.edu/23792

Coastal planning in North Shore City, New Zealand: Developing responsible coastal erosion policy
Provedor de dados: 31
Autores: Wilson,   Amanda.
North Shore City’s coastline has been subject to intensive development pressure over the last 15 years. In this time, new developments have established along previously undeveloped areas of coastline and existing sites have redeveloped with much larger houses. This paper provides a description of the planning controls that currently affect coastal development and an assessment of the effectiveness of these controls. This is followed by an analysis of the role of local government in controlling future development. Contention arises when attempts are made to control the property rights of landowners to protect their properties from coastal erosion. The impacts of private coastal protection works on the coastline have wider impacts than their immediate...
Tipo: Conference Paper or Presentation
Palavras-chave: Coast; Erosion; Planning; Cost; Benefit; Development; Protection; Structures.; Environmental Economics and Policy.
Ano: 2010
URL: http://purl.umn.edu/59260

DESENVOLVIMENTO TERRITORIAL RURAL NO BRASIL: UMA POLÊMICA
Provedor de dados: 31
Autores: Guanziroli,   Carlos Enrique.
O objetivo deste artigo é discutir a idéia de desenvolvimento territorial chamando a atenção para alguns trade off desse conceito: a) entre a ênfase no econômico ou no social-institucional, b) entre participação e eficácia, c) entre representatividade e inovação, d) entre coesão social e conflito e, e) entre rendas agrícolas e rendas rurais multifuncionais.---------------------------------The main purpose of this article is to discuss the notion of territorial development highlighting some tradeoffs of this concept: a) between economic or social emphasis, b) between participation and efficacy, c) between representation and innovation, d) between social cohesion and conflict and e) between agricultural income and rural multifunctional incomes.
Tipo: Conference Paper or Presentation
Palavras-chave: Desenvolvimento; Rural; Território; Agricultura Familiar; Development; Rural; Territory; Family Farming; Community/Rural/Urban Development; Farm Management.
Ano: 2008
URL: http://purl.umn.edu/108582

World agricultural production and consumption
Provedor de dados: 31
Autores: Smutka,   Lubos; Steininger,   Michal; Miffek,   Ondrej.
The article deals with an analysis of the world agricultural and foodstuff production and consumption. It analyses production and consumption development during the last 45 years (1961-2006). The aim of our paper is to analyse the current growth of population and foodstuff consumption and production and on the basis of these analyses, the paper tries to analyse the past and current food production development. In general, the paper analyses which factors influenced the foodstuff demand and which factors influenced the foodstuff supply.
Tipo: Journal Article
Palavras-chave: Agriculture; Production; Consumption; Development; Analyses; World; Agricultural and Food Policy; Food Consumption/Nutrition/Food Safety; Production Economics; GA; IN.
Ano: 2009
URL: http://purl.umn.edu/96851

Pourquoi et comment l’instabilité est-elle une caractéristique structurelle des marchés agricoles?
Provedor de dados: 31
Autores: Boussard,   Jean-Marc.
Agricultural price volatility is "bad". But where does it come from? Remedies are completely different for "endogenous" or "exogenous" fluctuations. The recent crisis seems to indicate that exogenous remedies have been applied to endogenous fluctuations.
Tipo: Conference Paper or Presentation
Palavras-chave: Instability; Agricultural policy; Development; Fluctuations; Quotas; Cobweb; Insurance.; Agricultural and Food Policy; Industrial Organization; Political Economy; Production Economics; Public Economics; B5; D4; D6; D8; N5; O1.
Ano: 2007
URL: http://purl.umn.edu/44424

Residential Land Values in Urbanizing Areas
Provedor de dados: 31
Autores: Kaltsas,   Ioannis K.; Bosch,   Darrell J.; McGuirk,   Anya M.
Zoning decisions related to residential lot size and density affect residential land value. Effects of size on residential parcel value in Roanoke County, VA, are estimated with fixed effects hedonic models. Parcel size; elevation; soil permeability; proximity to urban areas, malls, and roads; and location influence parcel value, but the effects vary by value of construction and development status. Parcel value per square meter declines with increasing parcel size. The estimated relationships could be used to evaluate zoning decisions in terms of land values and tax revenues if model estimation uncertainties and responses by developers to zoning strategies are considered.
Tipo: Journal Article
Palavras-chave: Development; Fixed effects; Hedonic model; Property values; Residential density; Spatial econometrics; Agribusiness; Land Economics/Use; Q24; C25; C52.
Ano: 2008
URL: http://purl.umn.edu/47204

Autocracies and Development in a Global Economy: A Tale of Two Elites
Provedor de dados: 31
Autores: Akerman,   Anders; Larsson,   Anna; Naghavi,   Alireza.
Current version uploaded April 2013.
Tipo: Working or Discussion Paper
Palavras-chave: Development; Economic Institutions; Political Institutions; Trade; Capital Mobility; Capital Accumulation; Comparative Advantage; Capital Mobility; F10; F20; P14; P16; O10; O24.
Ano: 2011
URL: http://purl.umn.edu/115848

Global Macroeconomic Developments and Poverty
Provedor de dados: 31
Autores: Bonilla,   Eugenio Diaz.
In the second half of the 1990s, a series of developments led to a renewed academic and policy interest in the intersection of macroeconomic policy and poverty issues in developing countries. The focus of that work was domestic macroeconomic policies. This paper, however, focuses on the international dimension and discusses the links between global macroeconomic conditions and poverty in developing countries since the 1960s. Of course, when analyzing policy impacts, both domestic and international aspects must be considered. However, debates about domestic policies, macro or otherwise, and their impacts on poverty cannot provide an accurate analysis of developing countries’ alternatives and predicaments if they ignore the role, in many cases overwhelming,...
Tipo: Working or Discussion Paper
Palavras-chave: Macroeconomics; Poverty; Development; Agriculture; Food Security and Poverty; International Development.
Ano: 2008
URL: http://purl.umn.edu/42324

POTENCIALIDADES E LIMITAÇÕES DA AGRICULTURA FAMILIAR NO SUL DE MINAS GERAIS: UM DIAGNÓSTICO FUNDAMENTADO NA ABORDAGEM INTERPRETATIVA
Provedor de dados: 31
Autores: Ferreira,   Patricia Aparecida; Alencar,   Edgard.
This study aims to identify orientation objects which are for the head of family farms, agroscience professionals and town authorities, the meaning of favorable or limiting factors to the development of family agriculture in the south of Minas Gerais region. In relation to data collection, the technique ‘focused interview’ was used. The interviewees were selected by the non- probabilistic method of sampling by judgment. The results also showed that the process of orientation is not linear, once the interviewees established multiple connections among the different situational objects. Those connections highlighted that taking advantage of favorable factors and the reduction of the impacts of the limiting factors involve interdisciplinary notion, for they...
Tipo: Journal Article
Palavras-chave: Agricultural families; Development; Social action theory; Favorable factors; Limiting factors.
Ano: 2007
URL: http://purl.umn.edu/43704

Innovation of China's Circular Agricultural Development in the Perspective of Low Carbon Economy
Provedor de dados: 31
Autores: Li,   Yan-yan.
On the basis of the concept and characteristics of circular economy, this paper analyzes the restraining factors of China's circular agricultural development as follows: issues concerning agriculture, countryside and farmers are  outstanding; the problems of agricultural resources and agricultural ecological environment are serious; the quality of agricultural products cannot meet the demand of domestic and international market for food. Based on the internal requirements of low carbon economic development, this paper advances four innovative models concerning China's circular agricultural development as follows: the model of combining planting and breeding of agriculture, the developmental model of leisure and sightseeing, ecological integration model,...
Tipo: Journal Article
Palavras-chave: New village; Development; Circular agriculture; Low carbon economy; China; Agribusiness.
Ano: 2011
URL: http://purl.umn.edu/118220

Congregations and rural development The case of the Evangelical Lutheran Church of Finland
Provedor de dados: 31
Autores: Pesonen,   Heikki; Vesala,   Kari.
Approximately 84 percent of Finns are members of the Evangelical Lutheran Church. Most of the Church’s 562 congregations are located in rural areas. In local communities Church congregations typically play a significant role, providing job opportunities, offering various services and promoting social and mental welfare. This paper examines the role that the Evangelical Lutheran Church of Finland and its congregations have in rural development. The activities of the rural congregations are examined, firstly, from the point of view of rural development on the whole. What is the potential of the congregations in rural development? Secondly, the role of congregations in rural development is examined by taking into consideration the religious motivations and...
Tipo: Journal Article
Palavras-chave: Religion; Evangelical Lutheran Church of Finland; Congregations; Rural; Development; Community attachment; Social sustainability; Community/Rural/Urban Development.
Ano: 2006
URL: http://purl.umn.edu/44102

The Optimal Climate Policy Portfolio when Knowledge Spills Across Sectors
Provedor de dados: 31
Autores: Massetti,   Emanuele; Nicita,   Lea.
This paper studies the implications for climate policy of the interactions between environmental and knowledge externalities. Using a numerical analysis performed with the hybrid integrated assessment model WITCH, extended to include mutual spillovers between the energy and the non-energy sector, we show that the combination between environmental and knowledge externalities provides a strong rationale for implementing a portfolio of policies for both emissions reduction and the internalisation of knowledge externalities. Moreover, we show that implementing technology policy as a substitute for stabilisation policy is likely to increase global emissions.
Tipo: Working or Discussion Paper
Palavras-chave: Technical Change; Climate Change; Development; Innovation; Spillovers; Environmental Economics and Policy; C72; H23; Q25; Q28; O31; O41; Q54.
Ano: 2010
URL: http://purl.umn.edu/92912

UNDERSTANDING, MEASURING AND UTILIZING SOCIAL CAPITAL:  CLARIFYING CONCEPTS AND PRESENTING A FIELD APPLICATION FROM INDIA
Provedor de dados: 31
Autores: Krishna,   Anirudh.
Social capital is a resource, a propensity for mutually beneficial collective action that communities possess to different extents. Communities with high levels of social capital are able to act together collectively for achieving diverse common objectives. While the concept of social capital is valid universally, the measure of social capital will vary by context. It must be related in each case to aspects of social relations that assist mutually beneficial collective action within that particular cultural context. A locally relevant scale of social capital was developed to assess whether and how social capital mattered for development performance in 69 north Indian villages. Variables corresponding to other bodies of explanation, including extent of...
Tipo: Report
Palavras-chave: Social capital; India; Agency; Development; Institutions; Labor and Human Capital.
Ano: 2003
URL: http://purl.umn.edu/55443

Technology Change: Sources and Impediments
Provedor de dados: 31
Autores: Ranis,   Gustav; Irons,   Mallory; Huang,   Yanjing.
There is little doubt that technology change, both in terms of its process and quality dimensions, represents the principal driving force to explain comparative economic performance at both micro and macro levels.  This paper examines the sources of technology change and the impediments to the full realization of its opportunities, both abstractly and in the context of a comparison among six typologically diverse developing countries.  Among the external sources, we examine the roles of trade, foreign patents and FDI; among the internal sources we examine the roles of investment, domestic R&amp;D, domestic patents, S&amp;T personnel and secondary education alternatives.  Among impediments, we analyze certain public and private policy frameworks which tend...
Tipo: Working Paper
Palavras-chave: Development; Technological Change; Research and Development/Tech Change/Emerging Technologies; O11; O14; O33.
Ano: 2011
URL: http://purl.umn.edu/118647

Development in the Midst of Drought: Evaluating an Agricultural Extension and Credit Program in Nicaragua.
Provedor de dados: 31
Autores: Mullally,   Conner.
This essay is an evaluation of year one of the Rural Business Development (RBD) program for small rice farmers in León, Nicaragua. The RBD program is administered by the Millennium Challenge Corporation, and is designed to deliver agricultural extension advice and affordable credit in the form of inputs to farm households. This essay estimates the average impact of the program on rice yields and revenues utilizing inverse propensity score weighting combined with linear regression. In conducting statistical inference, it also accounts for the fact that agricultural outcomes are likely correlated over space in a small area such as the one studied here. The results suggest that the program had no impact on average, likely due to the presence of a severe...
Tipo: Conference Paper or Presentation
Palavras-chave: Development; Extension; Credit; Spatial; Impact evaluation; International Development.
Ano: 2011
URL: http://purl.umn.edu/108723

Cross-Border Intellectual Property Rights: Contract Enforcement and Absorptive Capacity
Provedor de dados: 31
Autores: Naghavi,   Alireza; Tsai,   Yingyi.
Current version uploaded April 2013.
Tipo: Working Paper
Palavras-chave: Intellectual Property Rights; TRIPS; Nash Bargaining; Contract Enforcement; Development; Absorptive Capacity; Monitoring; Research and Development/Tech Change/Emerging Technologies; O34; F13; F53; D78; L10; O33; C70.
Ano: 2012
URL: http://purl.umn.edu/122864

Coping with the Fallout for Preference-receiving Countries from EU Sugar Reform
Provedor de dados: 31
Autores: Chaplin,   Hannah; Matthews,   Alan.
Developing countries can produce sugar at much lower cost than it can be produced in the EU, yet reform of the EU sugar policy will result in both winners and losers among them. Reform will benefit competitive sugar exporters currently excluded from the EU market. It will adversely affect those developing countries that currently benefit from preferential import access to the EU's high-priced sugar market, while diminishing the benefits received by those least-developed countries to which duty-free and quota-free access has been promised after July 2009. This article identifies the countries likely to lose and the extent of their potential losses. It examines alternative proposals that have been put forward to assist these countries to adjust to the...
Tipo: Journal Article
Palavras-chave: ACP countries; Development; EBA initiative; EU sugar reform; Trade preferences; International Relations/Trade.
Ano: 2006
URL: http://purl.umn.edu/23828

Special and Differential Treatment: A Mechanism to Promote Development?
Provedor de dados: 31
Autores: Kerr,   William A.
Much has been made of "special and differential" treatment in the Doha Development Round of WTO negotiations. In particular, a conscious effort has been made to infer that special and differential treatment will promote development. While special and differential treatment may be a necessary evil given developing countries' higher adjustment costs, dignifying it as a development mechanism plays into the hands of protectionist interests. In particular, by allowing a general increase in the ability of developing countries to isolate their economies, it may reduce the efficacy of important forces that prod institutional reforms in developing countries. As institutional reform is one of the keys to economic development, lionizing special and differential...
Tipo: Journal Article
Palavras-chave: Development; Institutional reform; Protectionism; Special and differential treatment; WTO; International Development.
Ano: 2005
URL: http://purl.umn.edu/23896

Nutritional &amp; Health Claimed Products Market Development in Serbia: Exploration of Findings Obtained from In Depth Interviews
Provedor de dados: 31
Autores: Stojanovic,   Zaklina; Ognjanov,   Galjina; Dragutinovic-Mitrovic,   Radmila.
The main objective of this paper is to present the most relevant findings obtained from in depth interviews with processors and retailers about the N&amp;H claimed products market in Serbia. In our research we addressed the following set of topics: motivations and barriers to offer N&amp;H claimed products at domestic market and perception of consumer demand toward N&amp;H claimed products in Serbia. Significant differences between Serbia and other WBC are explored. Statistical testing includes nonparametric test based on two independent samples (Mann- Whitney test). Findings support overall conclusion that this market segment in Serbia is underdeveloped and rather producer than consumer driven.
Tipo: Conference Paper or Presentation
Palavras-chave: N&amp;H products market; Motivations; Barriers; Consumer demand; Development; Agricultural and Food Policy; Consumer/Household Economics; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Health Economics and Policy; Q13; D21.
Ano: 2010
URL: http://purl.umn.edu/116446

TRAJETORIA DO DESENVOLVIMENTO:REVISITANDO O PASSADO PARA REPENSAR O FUTURO
Provedor de dados: 31
Autores: Cazella,   Ademir Antonio; Goncalves,   Diogo Alvim; Cerdan,   Claire.
Este artigo tem como objetivo analisar em que medida os problemas da pobreza e da degradação ambiental da região de São Joaquim, em Santa Catarina, vêm sendo historicamente gerenciados pelos agentes de planejamento e gestão do desenvolvimento regional. Para tanto, recuperamos a trajetória do desenvolvimento desde a colonização até hoje. A partir desta trajetória, investigamos os recursos (naturais e humanos) mobilizados para impulsionar as estratégias de desenvolvimento adotadas ao longo do tempo. As reflexões sobre o histórico e cenário atual da região levaram à conclusão de que os problemas destacados não representam uma prioridade nas agendas de planejamento do desenvolvimento regional. As conseqüências socioambientais do desenvolvimento regional são...
Tipo: Conference Paper or Presentation
Palavras-chave: Desenvolvimento; Gestão; Ecossistemas; Socioambiental; Development; Management; Ecosystems; Nature-society; Food Security and Poverty; International Development.
Ano: 2008
URL: http://purl.umn.edu/109800

Adding value to local resources specifically tailored for developing São Paulo State’s vitiviniculture
Provedor de dados: 31
Autores: Verdi,   Adriana Renata; Otani,   Malimiria Norico; Fredo,   Carlos Eduardo.
São Paulo state’s vitiviniculture ranks second in Brazil, being characterized by the production of table grapes and wines derived from American and hybrid varieties. Despite its economic, social, and environmental benefits, the state’s vitiviniculture has witnessed an increasing dependence on grapes produced in other states over the last decade. Besides adding to the cost of producing wine in São Paulo, grape imports from the state of Rio Grande do Sul compromises not only product quality, but also the process of creating an identity for the product. To give a new impetus to the production of grapes and wines in São Paulo, the State of São Paulo Research Foundation (FAPESP) developed a project called “Revitalizing São Paulo’s Vitivinicultural Chain,” a...
Tipo: Conference Paper or Presentation
Palavras-chave: Territorial resources; Development; Vitiviniculture.; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Food Consumption/Nutrition/Food Safety; Labor and Human Capital.
Ano: 2010
URL: http://purl.umn.edu/95240

The adaptability of stakeholders to new approaches in rural development in the Czech Republic
Provedor de dados: 31
Autores: Hudeckova,   Helena; Balzerova,   Hana.
The paper deals with the adoption of new approaches in the practice of rural development. Major attention is paid to the LEADER approach, with the objective of evaluating the implementation of the principles in the activities of actors associated with Czech LAGs. Techniques of content analysis and interviews with selected representatives, mainly with managers of LAGs, were used for sociological empirical research. The results analyse concrete clashes between the hierarchic structure and the principle of network co-operation, which is starting to develop successfully at state-wide and international levels. Next, the results point out the failures in the implementation of the LEADER approach in the Czech Republic which have been overcome (linked with the...
Tipo: Journal Article
Palavras-chave: Countryside; Development; Territorial governance; Stakeholder; LEADER; Community/Rural/Urban Development; GA; IN.
Ano: 2010
URL: http://purl.umn.edu/96863

The Reform of the EU Sugar Trade Preferences toward Developing Countries in Light of the Economic Partnership Agreements
Provedor de dados: 31
Autores: Gotor,   Elisabetta.
This article provides a general overview of the evolution of the European Union  trade preferences with the African, Caribbean and Pacific (ACP) Countries, giving due attention to the reform of the Sugar Protocol (SP) in light of the anticipated Economic Partnership Agreements (EPAs). The EU sugar trade relationship with the ACP, as captured in both a reformed SP for ACP non–least developed countries and in the Everything-but-Arms initiative for the world’s least developed countries, is analysed and contextualized within the ongoing negotiations toward achieving EPAs, which will substitute the Lomé Convention and give a new order to EU-ACP relationships.
Tipo: Journal Article
Palavras-chave: African Caribbean Pacific countries; Development; Economic Partnership Agreements; European Union; Sugar reform.; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; International Development; International Relations/Trade; Political Economy.
Ano: 2009
URL: http://purl.umn.edu/52695

Trends in Agricultural and Rural Development Indicators in Zambia.
Provedor de dados: 31
Autores: Jayne,   Thomas S.; Govereh,   Jones; Chilonda,   Pius; Mason,   Nicole M.; Chapoto,   Antony; Haantuba,   Hyde H.
Effective agricultural and food security policies in Africa need to be based on a solid empirical foundation. In Zambia, it is widely perceived that poverty rates are increasing, agricultural growth is stagnant, and real food prices are higher as food production declines. This study examines these trends and finds that all of these perceptions are wrong. Rural poverty rates have declined substantially in rural Zambia since the early 1990s, although they are still unacceptably high. Real staple food prices for consumers have declined by 20% over the past decade, thanks to major reductions in maize milling and retailing margins. And there is evidence of impressive production growth for some crops that are becoming increasingly important sources of income and...
Tipo: Report
Palavras-chave: Food security; Policy; Development; Indicators; Zambia.; Africa; Community/Rural/Urban Development; International Development; Q18.
Ano: 2007
URL: http://purl.umn.edu/54483

THE IMPORTANCE OF EQUESTRIAN TOURISM ENTERPRISES IN TOURISM DESTINATION MANAGEMENT IN HUNGARY
Provedor de dados: 31
Autores: Konyves,   Erika; Suta,   Eva.
Hungary is the pioneer of the European Equestrian Tourism. Several thousands foreign tourists visited specific equestrian programmes already in the 1960’s and 1970’s. At the same times some hundred thousands of holiday tourists visited equestrian shows and programs organised in different areas of our country. From the beginning of the 1990’s equestrian enterprises (pensions, stables, specialized equestrian services) have been established. The equestrian tourism enterprises are well represented all over the country. They are well organised, the Hungarian Equestrian Tourism Association integrates 80% of equestrian tourism enterprises. Uniquely in Europe, the voluntary professional qualification, called “the horseshoe qualification system” started in 1998....
Tipo: Journal Article
Palavras-chave: Development; Equestrian; Enterprises; Tourism; Tourism Destination Management; Agribusiness; Teaching/Communication/Extension/Profession.
Ano: 2009
URL: http://purl.umn.edu/53535

A Financial Contracting Approach to the Role of Supermarkets in Farmers' Credit Access
Provedor de dados: 31
Autores: Marcoul,   Philippe; Veyssiere,   Luc.
Replaced with revised version of paper 10/17/08.
Tipo: Conference Paper or Presentation
Palavras-chave: Financial Contracting; Development; Financial Intermediation; Food Standards; Organization of Production; Supermarket; Agribusiness; Agricultural Finance; O17; O33; O50; Q12; Q13.
Ano: 2008
URL: http://purl.umn.edu/6366

Territórios rurais e políticas públicas no Estado do Paraná
Provedor de dados: 31
Autores: Marques,   Lentia Maria; Pereira,   Valeria Villa Verde.
O artigo apresenta a unidade de análise adotada, territórios rurais. Analisa a evolução das políticas públicas voltadas à agricultura familiar - Fundo de Aval, PRONAT, PRONAF e Micro Crédito -, nos territórios selecionados. Ressalta a apropriação diferenciada de tais programas por parte dos territórios e relaciona mudanças socioeconômicas com investimento público e desenvolvimento. This paper presents the unit of analysis, rural areas (territories). It analyzes the evolution of public policies geared to family farming - Fundo de Aval (fund assent), PRONAT, PRONAF and Microcrédito (micro credit) - in selected areas (territories). Emphasized differentiated appropriation of such policies from the territories and report socioeconomic changes with public...
Tipo: Conference Paper or Presentation
Palavras-chave: Territórios rurais; Políticas públicas; Agricultura familiar; Desenvolvimento; Rural areas(territories); Public policies; Family farming; Development; Agricultural and Food Policy.
Ano: 2008
URL: http://purl.umn.edu/102467

Identifying agricultural research and development investment opportunities in sub-Saharan Africa: A global, economy-wide analysis
Provedor de dados: 31
Autores: Ehui,   Simeon K.; Tsigas,   Marinos E.
Poverty is higher in most African countries than elsewhere in the developing world, and highest in the rural areas. Accelerating growth in agriculture will therefore be critical to sustain growth and reduce poverty, but policy makers are unsure which sub-sector will yield the highest return for a given budget. This paper uses an applied general equilibrium model to simulate productivity gains in sub-Saharan agriculture subject to trade-offs between gains in crops and gains in livestock. The simulated results suggest three conclusions. First, most sub-Saharan economies gain more from research and development (R&amp;D) investment in crops than in livestock, though the SACU (South African Customs Union) economies and Madagascar benefit from sharing it between...
Tipo: Journal Article
Palavras-chave: Agriculture; Livestock research; Development; Investment; Research and Development/Tech Change/Emerging Technologies.
Ano: 2006
URL: http://purl.umn.edu/57018

The Research and Development Strategy
Provedor de dados: 31
Autores: Hyland,   Paul W.; Clark,   Richard A.
Continuous improvement and continuous innovation are used in the service and manufacturing industries, but there is little evidence of their use in the beef production sector. This paper examines the evidence relating to Continuous Innovation and Continuous Improvement and describes a collaborative partnership approach to its implementation in the beef industry. The results indicate that using a facilitated network of businesses can increase the uptake of innovations and improvements in beef businesses. Results also indicate that there is a need to develop facilitators so that they are aware of the impact of innovations and improvements on business profitability and so they can assist managers and business owners to implement short term changes to the...
Tipo: Article
Palavras-chave: Continuous innovation; Improvement; Collaboration; Partnerships; Research; Development; Farm Management.
Ano: 2008
URL: http://purl.umn.edu/122182

Path Interdependence Among Early and Late Bloomers in a Dynamic Heckscher-Ohlin Model
Provedor de dados: 31
Autores: Gaitan,   Beatriz; Roe,   Terry L.
The closed economy neoclassical growth model predicts convergence to a capital stock level that is independent of its initial level, suggesting that discrepancies in per capita income among the world’s economies should largely disappear in the long-run. This paper shows that international trade among countries differing only in their level of initial capital is sufficient to generate long-run income differences across countries. The long-run level of capital of the country most initially endowed with capital is shown to exceed the level of capital otherwise obtained in autarchy while the country least endowed converges to a capital stock lower than would otherwise be obtained in autarchy.
Tipo: Report
Palavras-chave: International trade; Development; Multiple Equilibria; International Relations/Trade; O41; F43; F11.
Ano: 2007
URL: http://purl.umn.edu/7183

Development in the Midst of Drought: Evaluating an Agricultural Extension and Credit Program in Nicaragua.
Provedor de dados: 31
Autores: Mullally,   Conner.
Abstract: This essay is an evaluation of year one of the Rural Business Development (RBD) program for small rice farmers in León, Nicaragua. The RBD program is administered by the Millennium Challenge Corporation, and is designed to deliver agricultural extension advice and affordable credit in the form of inputs to farm households. This essay estimates the average impact of the program on rice yields and revenues utilizing inverse propensity score weighting combined with linear regression. In conducting statistical inference, it also accounts for the fact that agricultural outcomes are likely correlated over space in a small area such as the one studied here. The results suggest that the program had no impact on average, likely due to the presence of a...
Tipo: Conference Paper or Presentation
Palavras-chave: Development; Agriculture; Extension; Credit; Spatial; Propensity score; International Development.
Ano: 2011
URL: http://purl.umn.edu/108498

The use of information and communication technologies in the modernization of Caribbean agriculture: Focus on agricultural extension
Provedor de dados: 31
Autores: Ganpat,   Wayne G.; Ragbir,   Sarojini; de Freitas,   Claudette.
Bridgetown, Barbados 6th – 10th July, 2009
Tipo: Presentation
Palavras-chave: Agriculture; Development; Extension; Information Communication Technologies; Research and Development/Tech Change/Emerging Technologies; Teaching/Communication/Extension/Profession; Q16.
Ano: 2010
URL: http://purl.umn.edu/122663

Queensland’s Producer Representative Bodies: Challenges and Changes
Provedor de dados: 31
Autores: Jarratt,   Ian S.; Franco-Dixon,   Mary Ann.
Information is provided on the membership and roles of Queensland producer representative bodies (PRBs) obtained from a postal survey of PRBs. The challenges currently facing PRBs, and their responses, are also identified and discussed. PRB representation of member interests is also described and discussed.
Tipo: Presentation
Palavras-chave: Policy; Development; Producer representative bodies; Agribusiness.
Ano: 2000
URL: http://purl.umn.edu/123678

A HISTÓRICA CONCEPÇÃO DE DESENVOLVIMENTO FRENTE ÀS IDENTIDADES REGIONAIS: O CASO DO RINCÃO DOS MENDES NO MUNICÍPIO DE ROSÁRIO DO SUL/RS
Provedor de dados: 31
Autores: Rozalino,   Luciano; Brito,   Andreia Nunes Sa; Neumann,   Pedro Selvino; Silveira,   Paulo Roberto Cardoso da; Genro,   Cicero Joao Malmann.
O presente artigo propõe uma reflexão sobre o enfoque convencional de  desenvolvimento da região denominada de Metade Sul do Rio Grande do Sul, tomando como referência uma comunidade situada na APA do Ibirapuitã, no município de Rosário do Sul. As abordagens atuais, apoiadas em indicadores como PIB per capta, Valor Adicionado Fiscal e geração de postos de trabalho, consideram a região como pouco desenvolvida. Entre as estratégias utilizadas para reversão desse quadro destacam-se a expansão das modernas lavouras empresarias de arroz e soja e o fomento aos empreendimentos no ramo florestal. Assim, a pergunta central desse artigo é sobre a capacidade dessas estratégias em promover verdadeiramente o “desenvolvimento” da metade sul do RS. O estudo destaca os...
Tipo: Conference Paper or Presentation
Palavras-chave: Desenvolvimento; Metade sul do RS; Identidade Territorial; Development; Southern half of the RS; International Development.
Ano: 2008
URL: http://purl.umn.edu/114161

DEVELOPMENT AND POVERTY REDUCTION: DO INSTITUTIONS MATTER? A STUDY ON THE IMPACT OF LOCAL INSTITUTIONS IN RURAL INDIA
Provedor de dados: 31
Autores: Gandhi,   Vasant P.; Marsh,   Robin.
The paper examines the impact of local institutions on development and poverty in the rural areas of India. Recent research on the role of institutions on the path of economic development indicates the importance of both "macro" and "micro" institutions including local institutions. The study finds a large number of both formal and informal local institutions in the surveyed villages, and a substantial degree of interaction of the households with the institutions. These include both formal institutions such as service cooperatives and dairy cooperatives, as well as informal institutions such as savings groups, community associations and labour groups. The study finds that apart from the standard factors included such as land, capital and labour, the...
Tipo: Conference Paper or Presentation
Palavras-chave: Institutions; Development; Poverty reduction; International Development.
Ano: 2003
URL: http://purl.umn.edu/25928

Farmland Preservation and Residential Density: Can Development Rights Markets Affect Land Use?
Provedor de dados: 31
Autores: McConnell,   Virginia D.; Kopits,   Elizabeth; Walls,   Margaret.
This paper examines transferable development rights (TDRs) policies as a way to preserve farmland and change the density of development. Characteristics of TDR markets are described, including why they might promote efficiency, and the difficulties that arise in implementing them. Evidence from an established TDR program in Calvert County, Maryland, is used to assess the potential for TDRs to influence subdivision density, and to achieve local land preservation goals. The Calvert program has succeeded in creating an active and stable TDR market, and has therefore preserved a large amount of farmland in the region. But we find that the demand for additional density permitted with TDRs occurs mostly in rural areas and not in the higher density town centers...
Tipo: Journal Article
Palavras-chave: Land preservation; Development; Markets; Density; Land Economics/Use.
Ano: 2005
URL: http://purl.umn.edu/10240

Development in Central Europe Includes Food Processing Business
Provedor de dados: 31
Autores: Declerck,   Francis.
The economic integration of Central European countries to the EU started in the beginning of the 1990's. ESSEC Business School, in partnership with Warsaw Agricultural University SGGW, and food companies have heavily invested in Central Europe, particularly Poland, before May 1, 2004 the official date of the EU enlargement to 8 Central European Countries: Estonia, Hungary, Latvia, Lithuania, Poland, the Czech Republic, Slovenia and Slovakia. With more than half the population and business activity of these countries, Poland is the « big » Central European country. Four food industry managers from those countries provide their point of view.
Tipo: Journal Article
Palavras-chave: Central Europe; Development; Food; Business; Investment; Agribusiness.
Ano: 2004
URL: http://purl.umn.edu/8128

PRODUÇÃO DE AUTOCONSUMO EM ASSENTAMENTOS RURAIS: PRINCÍPIOS DA AGRICULTURA SUSTENTÁVEL E DESENVOLVIMENTO
Provedor de dados: 31
Autores: Duval,   Henrique Carmona; Ferrante,   Vera Botta; Valencio,   Norma Felicidade Lopes Da Silva.
A reforma agrária faz surgir uma nova categoria social e mosaicos na paisagem, em substituição às monoculturas. Nos assentamentos rurais ocorre uma reconstrução do agricultor, que pelo resgate do seu habitus cultural produz ao menos uma parte do autoconsumo alimentar. Todavia, a fixação no território obriga o assentamento a articulações com a dinâmica rural macroenvolvente e o enreda na lógica da monocultura que, em termos históricos e paradoxalmente, foi a mesma que engendrou a desfiliação social de outrora e a necessidade de luta pela terra. Este artigo discute, em meio a esta problemática, a agricultura voltada ao autoconsumo alimentar em consideração a alguns princípios agroecológicos. Retoma-se, ao final, que com o apoio de políticas municipais...
Tipo: Conference Paper or Presentation
Palavras-chave: Reforma Agrária; Autoconsumo; Agroecologia; Desenvolvimento; Agrarian Reformation; Production of Selfconsume; Agroecology; Development; International Development.
Ano: 2008
URL: http://purl.umn.edu/109711

Successes and Failures of Development Experience Since the 1980s
Provedor de dados: 31
Autores: Ranis,   Gustav.
This paper reviews the development experience since the 1980's and finds room for guarded optimism about what we can learn from it. Firstly, a global consensus is emerging on the need for macro-economic stability through prudent fiscal, monetary and foreign exchange policies. However, at the micro or structural level, while governments need to decentralize their decision-making authority more fully than they have thus far, in reaction to the recent reappraisal of the East Asian model there is some danger that development policy will swing too far in rejecting liberalization and returning to government intervention. Secondly, the paper points out that, while there exists a well-recognized causal nexus between exports and growth, the reverse causation also...
Tipo: Working or Discussion Paper
Palavras-chave: Development; Structural adjustment; Stabilization; Multi-lateral development banks; East Asian miracle; International Development.
Ano: 1996
URL: http://purl.umn.edu/28529

Managing R&amp;D Risk in Renewable Energy
Provedor de dados: 31
Autores: Rausser,   Gordon C.; Papineau,   Maya.
Preliminary Draft
Tipo: Working or Discussion Paper
Palavras-chave: Research; Development; Renewable resources; Risk; Public Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 2008
URL: http://purl.umn.edu/37651

Sustainable Cooperation in Global Climate Policy: Specific Formulas and Emission Targets to Build on Copenhagen and Cancun
Provedor de dados: 31
Autores: Bosetti,   Valentina; Frankel,   Jeffrey.
Replaced with revised version of paper 10/05/11.
Tipo: Working or Discussion Paper
Palavras-chave: Cancun; Climate; Concentrations; Cooperation; Copenhagen; Costs; Developing Countries; Development; Emissions; Equity; Global Climate; Global Warming; Greenhouse Gas; Human Development; International; Kyoto; Sustainable; Treaty; United Nations; WITCH; Environmental Economics and Policy; Q54.
Ano: 2011
URL: http://purl.umn.edu/115849

The talent management and its usage at human resources management in enterprises
Provedor de dados: 31
Autores: Horvathova,   Petra.
The article describes the nature, content, significance and benefits of talent management and its processes - the acquisition, development and retention - in the context of human resources management in the organization. It is based on a prerequisite that a well-adjusted and working system of talent management can make it possible for the organization to survive and grow in the current competitive, global business environment. The text also brings information of talent management utilization in Moravia and Silesia regions’ organizations.
Tipo: Journal Article
Palavras-chave: Talent; Talent management; Acquisition; Development; Retention.; Labor and Human Capital; M12.
Ano: 2009
URL: http://purl.umn.edu/94585

SWOT Analysis and Strategic Research on China's Rural Modern Industrial Development
Provedor de dados: 31
Autores: Liu,   Yan.
This paper expounds the necessity of China's rural modern industrial development, and points out that developing rural modern industry is the necessary choice of increasing farmers' income and bridging urban-rural gap; developing rural modern industry is the propeller of promoting rural economic prosperity and holistic economic growth of the nation; developing rural modern industry is the foundation of perfecting Various lands of social undertakings and changing rural appearance. SWOT analysis is conducted on China's rural modern industrial development. The advantages of China's rural modern industrial development include human resources advantage, economic development advantage, and policy advantage; the disadvantages of China's rural modern industrial...
Tipo: Journal Article
Palavras-chave: Rural modern industry; Development; SWOT analysis; Strategy; China; Agribusiness.
Ano: 2011
URL: http://purl.umn.edu/117244

Smallholder compliance with private standard certification: the case of GlobalGAP adoption by mango producers in Peru
Provedor de dados: 31
Autores: Lemeilleur,   Sylvaine.
The prevalence of food quality standards in international trade is constantly increasing and has a growing influence on developing countries. A wide range of literature in development economics has focused on the debate of whether international standards exclude small-scale farmers from high-value food markets. In fact, the evidence is mixed. New debates arise on what conditions small farmers can really comply with, pointing out both threshold capital requirements, on the one hand, and industry structure and institutional environment, on the other hand. Drawing on a microeconomic approach, our paper is a contribution to the literature exploring the patterns and determinants of smallholders’ adoption of the food standard. We focus our case study on...
Tipo: Presentation
Palavras-chave: GlobalGAP; Standard adoption; Development; Small-scale farmer; Mango; Peru; Agribusiness; Food Consumption/Nutrition/Food Safety; International Development; Marketing; L22; O12; Q13.
Ano: 2012
URL: http://purl.umn.edu/123457

The Greening of Development Economics: A Survey
Provedor de dados: 31
Autores: Blackman,   Allen; Mathis,   Mitchell; Nelson,   Peter.
Although ignored for decades, environmental issues now attract considerable attention in the literature on economic development. This paper describes research on environmental issues in seven topic areas that historically have been at the heart of development economics: the role of the state, economic growth, trade and industrialization, relations between rich and poor countries, structural adjustment and stabilization, population change, and the objectives and strategies of development.
Tipo: Working or Discussion Paper
Palavras-chave: Environment; Development; Economics; Literature review; International Development; B20; N01; O1; O13; Q20.
Ano: 2001
URL: http://purl.umn.edu/10662

A Growth-Focused Spatial Econometric Model of Agricultural Land Development in the Northeast
Provedor de dados: 31
Autores: Hailu,   Yohannes G.; Brown,   Cheryl.
Using county data for West Virginia, Maryland, and Pennsylvania, estimation of a system of simultaneous equations shows that population growth, higher taxes, high farmland value, and high initial per capita income accelerate farmland development, but return on farmland, government assistance to farmers, farmland conservation, and farming agglomeration reduce development pressure.
Tipo: Conference Paper or Presentation
Palavras-chave: Farmland; Development; Regional growth; Policy; Equilibrium model; Spatial autocorrelation; Land Economics/Use.
Ano: 2005
URL: http://purl.umn.edu/19488

Agri-tourism: A modern development in Bahamian agriculture
Provedor de dados: 31
Autores: Hepburn,   Erecia.
Bridgetown, Barbados 6th – 10th July, 2009
Tipo: Presentation
Palavras-chave: Agritourism; Agriculture; The Bahamas; Tourism; Development; Agribusiness; Q13.
Ano: 2010
URL: http://purl.umn.edu/122656

MULTIFUNCIONALIDADE E PLURIATIVIDADE COMO ALTERNATIVAS DE DESENVOLVIMENTO DA AGRICULTURA FAMILIAR NO BRASIL
Provedor de dados: 31
Autores: Machado,   Andre Grossi; Caume,   David Jose.
O objetivo deste trabalho é discutir, por meio de uma revisão teórica, alternativas de desenvolvimento da agricultura familiar no Brasil com um enfoque voltado aos conceitos de pluriatividade da agricultura familiar e multifuncionalidade do espaço agrário. Dentro dessa abordagem, e procurando comparar com a situação de outros países, objetiva-se explicar as especificidades, assim como as oportunidades e limitações da aplicação desses conceitos no país. A conjugação desses conceitos tem o potencial de levar a uma reorientação do modelo de desenvolvimento do meio rural brasileiro. A reorientação pode vir por meio de um modelo sustentável, ecologicamente correto e socialmente igualitário, proporcionando a fixação e manutenção de famílias no campo ligadas a...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultura familiar; Desenvolvimento; Mutifuncionalidade; Pluriatividade; Family agriculture; Development; Multifunctionality; Pluriactivity; Brazil; International Development.
Ano: 2008
URL: http://purl.umn.edu/108090

FARINHA MISTA DE MANDIOCA COM CASTANHA-DO-BRASIL: UMA ALTERNATIVA AGROECOLÓGICA PARA A RESERVA EXTRATIVISTA CAZUMBÁ-IRACEMA
Provedor de dados: 31
Autores: Siviero,   Amauri; Raimundo,   Carlo Filipe E.; Lessa,   Lauro Saraiva; Delunardo,   Thiago Andres; Pardinas,   Oscar Borreani.
A farinha de mandioca é o principal produto em importância alimentar servindo como fonte de energia e geração de renda para os agricultores familiares da Amazônia. A castanha-do-brasil é uma das principais fontes de proteína vegetal, geração de emprego e renda para os extrativistas da Amazônia. Este trabalho teve como objetivo analisar o arranjo produtivo local da farinha mista de mandioca com castanha-do-brasil e a produtividade de mandioca em área de agricultores familiares na Reserva Extrativista Cazumbá-Iracema, Sena Madureira-AC. Foram avaliados os critérios de dimensões econômicas, agronômicas, ambientais e sociais destes arranjos produtivos locais. O potencial produtivo da mandioca e da castanha foram avaliados através de ensaios de campo e...
Tipo: Conference Paper or Presentation
Palavras-chave: Manihot esculenta; Desenvolvimento; Farinha; Distribuição de renda; Development; Cassava flour; Distribution of income; Agribusiness.
Ano: 2008
URL: http://purl.umn.edu/112720

Researches on Agricultural Cooperative Economic Organization Promoting Agricultural Insurance Development
Provedor de dados: 31
Autores: Wang,   Xiu-fen; Li,   Mao-song.
The advantages of cooperative economic organization being the effective carrier of agricultural insurance development are analyzed. Firstly, cooperative economic organization promotes scale management and solves the problem of decentralized operation of small households. Secondly, cooperative economic organization can settle the problem of peasants' low systematization. Thirdly, cooperative economic organization can largely reduce the costs of agricultural insurance operation. Fourthly, cooperative organization decreases moral risks as well as adverse selection to some extent. Lastly, cooperative organization, to a certain degree, reduces the risks of agricultural production and increases the insurability of agricultural risks. Meanwhile limitations of...
Tipo: Article
Palavras-chave: Cooperative economic organization; Agricultural insurance; Development; China; Agribusiness.
Ano: 2011
URL: http://purl.umn.edu/119706

Political Selection and the Quality of Government: Evidence from South India
Provedor de dados: 31
Autores: Besley,   Timothy; Pande,   Rohini; Rao,   Vijayendra.
This paper uses household data from India to examine the economic and social status of village politicians, and how individual and village characteristics affect politician behavior while in office. Education increases the chances of selection to public office and reduces the odds that a politician uses political power opportunistically. In contrast, land ownership and political connections enable selection but do not affect politician opportunism. At the village level, changes in the identity of the politically dominant group alters the group allocation of resources but not politician opportunism. Improved information flows in the village, however, reduce opportunism and improve resource allocation.
Tipo: Working or Discussion Paper
Palavras-chave: Development; Political economy; Public provision of private goods; Decentralization; Political Economy; O12; H11; H42; O20.
Ano: 2005
URL: http://purl.umn.edu/28426

Unprotected Resources and Voracious World Markets
Provedor de dados: 31
Autores: Margolis,   Michael; Shogren,   Jason F.
The Theory of the Second Best implies that any country with less-than-ideal resources can lose from international trade. Recently it has been suggested this means the South (poor countries) are better off suppressing trade with the North, especially trade in natural resource products, since the North has better developed rights to protect its natural resources. Here we show that the suppression of such trade may also impede the development of property rights in the South, but that even taking this into account, trade liberalization need not improve Southern welfare. We find that within a cone of world prices on the boundary of which lies the South's autarky price vector, welfare losses still occur even when local governments in the South make optimal...
Tipo: Working or Discussion Paper
Palavras-chave: International trade; Property rights; Natural resources; Environment; Second best; Institutional change; Development; International Relations/Trade; F02; F10; F18; K11; O10; O19.
Ano: 2002
URL: http://purl.umn.edu/10635

TECHNOLOGICAL SPILLOVERS -- THE ARGUMENT FOR TRADE?
Provedor de dados: 31
Autores: Czap,   Hans J.
This paper examines the validity of anti-trade arguments that are based on the absence of technological spillovers. Results of a pooled cross-section time-series analysis for developing countries fail to support the existence of technological spillovers. Findings of learning-by-doing effects indicate that protectionism might be beneficial under certain circumstances.
Tipo: Conference Paper or Presentation
Palavras-chave: Development; International trade; Technological spillovers; Protectionism; International Development; International Relations/Trade.
Ano: 2004
URL: http://purl.umn.edu/20017

Kenyan Supermarkets and Horticultural Farm Sector Development
Provedor de dados: 31
Autores: Neven,   David; Reardon,   Thomas.
In Kenya, supermarkets have grown from a tiny n iche at the start of the 1990s to 20% of the urban food retail sector in 2003. Furthermore, Kenyan supermarket chains are increasingly sourcing from global markets and have started to expand their store network in the wider East Africa region. Within this context, this study focused on the farm-level response to the rise of supermarkets and the new challenges and opportun ities they create. The research found that the rise of supermarkets in Kenya has given rise to a new group of medium-sized farms managed by well-educated farmers. Focusing on kale, the research shows that nearly all supermarket-channel farmers have the capacity to supply larger volumes year round and have transportation vehicles, an...
Tipo: Conference Paper or Presentation
Palavras-chave: Supermarkets; Development; Hor ticulture; Farm technology; Africa; Marketing.
Ano: 2006
URL: http://purl.umn.edu/25759

AZ INFRASTRUKTÚRA ÉS A MEZŐGAZDASÁG
Provedor de dados: 31
Autores: Abonyi-Palotas,   Jolan.
A rendszerváltozás óta alapjaiban változtak meg a külső és a belső körülmé-nyek, a termelés, a feldolgozás és az értékesítés közgazdasági környezete. Az élelmiszergazdaság elemei közti régi, akkor sem teljes összhang összeomlott, az újak pedig még nem jöttek létre, nem váltak általánossá. Elmaradott, szűk ke-resztmetszetű a mezőgazdaság infrastruktúrája és sajnos ez jellemzi az agrártér-ség, a vidék infrastruktúráját is. A mezőgazdasági térségekben lassabb a növe-kedés és a fejlődés üteme, visszafogottabb a beruházás, erősebb a tőkehiány. Ezen sokat lendíthet a speciális infrastruktúra átgondolt, dinamikus fejlesztése.               -         The internal and external circumstances, production, processing and the economic sales environment have all...
Tipo: Journal Article
Palavras-chave: Infrastruktúra; Speciális agrár infrastruktúra; Fejlettség; Fejlesztés; Infrastructure; Special agricultural infrastructure; Maturity; Development; Agribusiness; Community/Rural/Urban Development; Research and Development/Tech Change/Emerging Technologies.
Ano: 2007
URL: http://purl.umn.edu/57678

International Commodity Organizations and Governance of Global Value Chains
Provedor de dados: 31
Autores: Burger,   Kees; Daviron,   Benoit; Flores,   Vanessa.
International commodity Organizations can play a role in reducing transaction costs between producer and consumer. The current organisations do this partly through statistics and collecting and disseminating market information, undertaking projects and convening meetings. Of a traditional focus on the international part of the trade chain they must extend to the whole chain, until the natural resources on the producer side and treatment of waste on the consumer side. This requires more capacity, stronger mandate and more intensive cooperation for the organisations mutually and with UNCTAD, FAO and the World Bank. The representatives of the governments now play the role of administrators and representatives of the industry. They should be customers, guard...
Tipo: Conference Paper or Presentation
Palavras-chave: Global governance; Global value chain; Commodities; Development; Agricultural and Food Policy; International Development; International Relations/Trade; Q13; O19.
Ano: 2009
URL: http://purl.umn.edu/51631

A ORGANIZAÇÃO ASSOCIATIVA NO SETOR APÍCOLA:  CONTRIBUIÇÕES E POTENCIALIDADES
Provedor de dados: 31
Autores: Lengler,   Leticia; Lago,   Adriano; Coronel,   Daniel Arruda.
This article aims to discuss on the cooperation and associative organization, its benefits and its main hindrances for a bigger consolidation of this type of organization. It also discusses the sudden and consequent development in the beekeeping sector. Therefore, it is set out as objective, to analyze whether the associative beekeeping is relevant regarding to the articulation and development capacity of the sector. In order to reach this objective, the research has used information obtained trough a seminary, in which debates about beekeeping occurred; non structured interviews, with representatives of Confederação Brasileira de Apicultura - CBA, Federação Apícola do Rio Grande do Sul – FARGS, beekeeping associations, and with specialists of the area. It...
Tipo: Journal Article
Palavras-chave: Associative organization; Beekeeping sector; Development; Market.
Ano: 2007
URL: http://purl.umn.edu/43706

Development in the Midst of Drought: Evaluating an Agricultural Extension and Credit Program in Nicaragua.
Provedor de dados: 31
Autores: Mullally,   Conner.
This essay is an evaluation of year one of the Rural Business Development (RBD) program for small rice farmers in León, Nicaragua. The RBD program is administered by the Millennium Challenge Corporation, and is designed to deliver agricultural extension advice and affordable credit in the form of inputs to farm households. This essay estimates the average impact of the program on rice yields and revenues utilizing inverse propensity score weighting combined with linear regression. In conducting statistical inference, it also accounts for the fact that agricultural outcomes are likely correlated over space in a small area such as the one studied here. The results suggest that the program had no impact on average, likely due to the presence of a severe...
Tipo: Conference Paper or Presentation
Palavras-chave: Development; Program evaluation; Agricultural extension.; International Development.
Ano: 2011
URL: http://purl.umn.edu/109664

The Response of Consumption to Income Shocks:  Evidence from the Indian Trade Liberalization
Provedor de dados: 31
Autores: Tandon,   Sharad; Landes,   Maurice R.
This paper uses the Indian tariff reforms of the early nineties to estimate how households responded to the negative income shocks caused by the tariff decreases.  Households more hurt by the tariff reform decreased overall expenditure, but the response is not uniform across food items.  In particular, households more hurt by the reform did not change their consumption of cereals, but decreased their consumption of all other food items.  Although this coping mechanism helped maintain overall levels of calorie consumption, diet diversity and the associated benefits were sacrificed.
Tipo: Conference Paper or Presentation
Palavras-chave: Nutrition; Trade; Development; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; International Development; D7; D8; H2; O2.
Ano: 2011
URL: http://purl.umn.edu/103767

BREAKING THE BOOM AND BUST: EXPLORING THIRTY YEARS OF DIVERSIFICATION IN WESTERN CANADA
Provedor de dados: 31
Autores: Chambers,   Edward J.; Ryan,   Chris.
The topic of diversification has been studied extensively by academics and policy makers. The theory of diversification, dating back to the 1930s and the Great Depression, suggests that increasing the variety of industries in a region spreads the risk and reduces the likelihood that all industries will suffer a downturn at the same time. This serves to mitigate the boom and bust pattern often experienced by a heavy reliance on a limited number of industries, which in three of the four western provinces, means natural resource-based industries. This study examines diversification progress in the four western provinces over the last 30 years. The time span covers the greatest progress in trade liberalization policy in the nation’s history, and the evidence...
Tipo: Report
Palavras-chave: Alberta; Western Canada; Diversification; "boom and bust"; Shift-share; Portfolio choice; Employment; Sector shift; Development; Policy; Policies; Economic history; History; Retrospective; Location quotients; Industrial Organization; Labor and Human Capital; Political Economy; Public Economics; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 2009
URL: http://purl.umn.edu/60429

Competitiveness of Zacatecas (Mexico) Protected Agriculture: The Fresh Tomato Industry
Provedor de dados: 31
Autores: Padilla-Bernal,   Luz E.; Rumayor-Rodriguez,   Agustin; Perez-Veyna,   Oscar; Reyes-Rivas,   Elivier.
The industry of fresh tomato production under protective structures in Zacatecas has undergone accelerated growth in recent years. Free trade, market globalization, new trends in the agro-food sector, as well as the food and financial crises, are impacting its competitiveness. In this study competitiveness of the industry of fresh tomato production under protective structures in Zacatecas was evaluated to provide elements that contribute to the design of policies aimed toward development of sustainable competitiveness. A systemic competitiveness model was applied, and a SWOT analysis was performed. The information was obtained through interviews with technicians and/or owners of the production units and complemented with interviews with researchers and...
Tipo: Journal Article
Palavras-chave: Development; Technology; Greenhouses; Systemic competitiveness; Agricultural Finance; Farm Management; Industrial Organization; Productivity Analysis.
Ano: 2010
URL: http://purl.umn.edu/92641

Economic Liberalization and Rural Land and Labour Markets in India: A Study
Provedor de dados: 31
Autores: Gandhi,   Vasant P.
The paper examines the rural land and labour markets in the context of economic liberalization in India. Land and labour are the two fundamental resources available to the rural people for income generation. The access to land and to employment for labour become basic determinants of well-being for the rural households. Reforms are often seen as hostile to rural areas and the poor, although they should be beneficial not only for overall growth, but also rural growth and poverty alleviation. The study based on primary household data examines the land and labour markets in the reform period and the underlying linkages of these to different characteristics of the household. The study finds that over the reform period in India the land markets are leading to...
Tipo: Conference Paper or Presentation
Palavras-chave: Reform; Land; Labour; Development; Poverty; Labor and Human Capital; Land Economics/Use.
Ano: 2006
URL: http://purl.umn.edu/25749

Microeconomic Approaches to Development: Schooling, Learning, and Growth
Provedor de dados: 31
Autores: Rosenzweig,   Mark R.
I illustrate the variety of approaches to development issues microeconomists employ, focusing on studies that illuminate and quantify the major mechanisms posited by growth theorists who highlight the role of education in fostering growth. I begin with a basic issue: what are the returns to schooling? I discuss microeconomic studies that estimate schooling returns  using alternative approaches to estimating wage equations, which require assumptions that are unlikely to be met in low-income countries, looking at inferences based on how education interacts with policy and technological changes in the labor and marriage markets. I then review research addressing whether schooling facilitates learning, or merely imparts knowledge, and whether there is social...
Tipo: Working or Discussion Paper
Palavras-chave: Schooling; Development; Growth; International Development; Labor and Human Capital; O11; O15; O33; J24.
Ano: 2010
URL: http://purl.umn.edu/59442

DESENVOLVIMENTO REGIONAL E INOVAÇÃO NO SEMI-ÁRIDO BRASILEIRO SEGUNDO OS TERRITORIOS DE IDENTIDADE E OS EMPREENDIMENTOS ECONÔMICOS SOLIDARIOS
Provedor de dados: 31
Autores: Machado,   Gustavo Bittencourt.
Este artigo tem o objetivo de discutir o tema do desenvolvimento do semi-árido, particularmente, o do Estado da Bahia, a partir das demandas específicas dos territórios de identidade, e em temas como ciência e tecnologia, e colocar, como condição deste processo, as estratégias dos empreendimentos econômicos solidários, que constituem o tecido social do meio rural e do semi-árido do Nordeste do Brasil. Os resultados baseiam-se em pesquisas realizadas no estado da Bahia, mas que, necessariamente, reportam-se aos demais sertões semi-áridos brasileiros. Ao final, propõem-se algumas diretrizes de políticas de ciência e tecnologia que contemplem as perspectivas dos territórios de identidade e dos empreendimentos econômicos solidários....
Tipo: Conference Paper or Presentation
Palavras-chave: Semi-árido; Políticas públicas; Desenvolvimento; Territórios de identidade; Semi-arid; Public policies; Development; Identity territories; International Development.
Ano: 2008
URL: http://purl.umn.edu/109653

Market and Coordination Failures in Poor Rural Economies: Policy Implications for Agricultural and Rural Development
Provedor de dados: 31
Autores: Dorward,   Andrew; Kydd,   Jonathan; Poulton,   Colin.
This paper argues that the disappointing outcomes of adjustment policies in poor rural economies, principally in sub-Saharan Africa, can be partly attributed to weaknesses in the neo-classical theory which underlies these polices and from associated failures to recognise structural changes (or transitions) in growing agricultural economies. After a brief description of agricultural policy changes in sub Saharan Africa, the mixed achievements of market liberalisation policies are explained using new institutional economic arguments regarding inherent difficulties in economic coordination in poor economies, difficulties which markets themselves cannot overcome. A novel framework is put forward for understanding coordination failure and integrating it with...
Tipo: Conference Paper or Presentation
Palavras-chave: Development; Coordination; Markets; Institutions; Marketing; O12; O17; Q12.
Ano: 2004
URL: http://purl.umn.edu/9535

Rising World Food Prices and Poverty in Fiji: A Developing Country Micro-Perspective
Provedor de dados: 31
Autores: Haszler,   Henry; Natasiwai,   Tevita; Gonemaituba,   Waisiki.
Until the world financial crisis struck, commodity and food prices seemed to be on an inexorable uptrend. The increases caused widespread concern about the effects of higher food prices on poverty. These concerns are relevant to the poor people everywhere but are especially relevant to poor people in developing countries who must spend high proportions of their incomes on food. In this analysis we use data from the Fiji Islands Household Income and Expenditure Survey of 2002 – 2003 to assess the likely effects of the increase in food prices in Fiji over 2002 to mid 2008 on the incidence of poverty in Fiji. We review and discuss the impacts of some of the Fiji Islands Government’s responses designed to alleviate the impacts on the Fiji Islands community.
Tipo: Conference Paper or Presentation
Palavras-chave: Food prices; Development; Poverty; Household survey; Case study; Fiji; Demand and Price Analysis; Food Security and Poverty.
Ano: 2009
URL: http://purl.umn.edu/47634

Empowerment, mobilisation and initiation of a community driven project: women and the Marula.
Provedor de dados: 31
Autores: Magadza,   Sian Newsome.
Bulilimamangwe is one of the poorest and most marginalised areas of Zimbabwe. In 2001 a community driven project was started under the Kellogg funded Integrated Rural Development Programme, to utilise the indigenous Marula trees found in the area. From the onset project members were mostly women. This paper documents the early years of the project. Achievements are given, problems faced examined and possible solutions put forward. Challenges, opportunities and conflicts are discussed in the hope that these may be of interest in the study of future projects utilising natural resources in poor communities.
Tipo: Journal Article
Palavras-chave: Empowerment; Women; Natural resource; Rural livelyhoods; Development; Marula; Community/Rural/Urban Development.
Ano: 2006
URL: http://purl.umn.edu/44107

PROPOSIÇÃO DE ESTRATÉGIAS DE DESENVOLVIMENTO LIGADAS AO AGRONEGÓCIO PARA O COREDE NOROESTE COLONIAL DO RIO GRANDE DO SUL
Provedor de dados: 31
Autores: Brum,   Argemiro Luis; Trennepohl,   Dilson; Tybusch,   Tania Marques.
O presente trabalho teve como tema central detectar alternativas de desenvolvimento para o agronegócio da região Corede Noroeste Colonial, região esta que compreende 32 municípios, e foi desenvolvido no âmbito do edital Procoredes II com apoio financeiro da FAPERGS. A execução do mesmo se deu sobre a base de uma linha teórica, agregando-se pesquisas bibliográficas e de campo entre os agentes econômicos do agronegócio regional. A partir disso, o trabalho conta com cinco etapas. A primeira trata da trajetória e perspectivas de desenvolvimento da Região Noroeste Colonial do Rio Grande do Sul, destacando o processo de povoamento, os impactos de sua modernização agropecuária e a dinâmica populacional que ali se cristalizou. A segunda recupera os estudos...
Tipo: Conference Paper or Presentation
Palavras-chave: Agronegócio; Desenvolvimento; Estratégia; Agribusiness; Development; Strategies; Agribusiness.
Ano: 2008
URL: http://purl.umn.edu/113379

In vitro somatic embryogenesis and adventitious root initiation have a common origin in eggplant (Solanum melongena L.)
Provedor de dados: 88
Autores: Tarré,Erika; Magioli,Claudia; Margis-Pinheiro,Márcia; Sachetto-Martins,Gilberto; Mansur,Elisabeth; Santiago-Fernandes,Lygia D. R.
Somatic embryogenesis was induced from cotyledon explants of eggplant cultured on MS medium supplemented with 54 µM NAA. Anatomical analysis of somatic embryo initiation and development was performed during the first four weeks. Proembryo formation was observed after the second day of culture, directly from perivascular cells or via pro-embryogenic masses derived from indeterminate meristematic masses (IMMs) originated in the vascular tissue. Those IMMs also gave rise to root primordia after 10 days of culture. The origin of embryos is discussed as well as the similarities between somatic embryogenesis and adventitious root formation.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anatomy; Development; Solanum melongena; Somatic embryogenesis.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042004000100010

Morphology, reproduction and development of Hypoglossum hypoglossoides (Stackhouse) Collins &amp;amp; Hervey (Ceramiales, Rhodophyta) from the south and southeastern Brazilian coast
Provedor de dados: 88
Autores: Horta,Paulo A.; Yokoya,Nair S.; Guimarães,Silvia M.P.B.; Bacci,Denise S.; Oliveira,Eurico C.
Hypoglossum hypoglossoides (Stackhouse) Collins &amp;amp; Hervey is reported for the first time from the infralittoral of São Paulo and Santa Catarina states. The species was already reported to the states of Rio de Janeiro, Espírito Santo and Bahia as Hypoglossum tenuifolium (Harvey) J. Agardh var. carolinianum Williams. A detailed description of the morphology and reproduction is given based on field-collected material. Unialgal cultures were initiated from tetraspore germination, and growth rates of gametophytes were determined under different conditions of temperature, photoperiod and irradiance. Gametophytes grew well between 15 to 30 ºC, 14L:10D and 10L:14D photoperiods and irradiance from 20 to 120 µmol photons.m-2.s-1, but presented low percentage...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Delesseriaceae; Development; Hypoglossum hypoglossoides; Reproduction; Rhodophyta.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042003000400004

Origin of successive cambia on stem in three species of Menispermaceae
Provedor de dados: 88
Autores: Tamaio,Neusa; Vieira,Ricardo Cardoso; Angyalossy,Veronica.
The lianas observed in this study, Abuta convexa (Vell.) Diels, Abuta imene (Mart.) Eichler, and Chondrodendron platiphyllum (A. St.-Hil.) Miers, all have successive cambia in their stems. The terminology applied to stem histology in species with successive cambia is as diverse as the interpretations of the origins of this cambial variant. Therefore, this study specifically investigates the origin of successive cambia through a developmental analysis of the above-mentioned species, including an analysis of the terminology used to describe this cambial variation. For the first time, we have identified several developmental stages giving rise to the origins of successive cambia in this family. First, the pericycle originates in 1-3 layers of conjunctive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abuta; Cambial variant; Chondrodendron; Development; Liana.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042009000400021

Morfo-anatomia e ontogênese do fruto e da semente de Tipuana tipu (Benth.) O. Kuntze (Fabaceae: Faboideae)
Provedor de dados: 88
Autores: MARTINS,MARCO ANTONIO GARCIA; OLIVEIRA,DENISE MARIA TROMBERT.
Frutos e sementes de Tipuana tipu foram analisados morfo-anatomicamente, durante seu desenvolvimento, objetivando descrever sua estrutura, esclarecer a origem da ala pericárpica e verificar a ocorrência de poliembrionia, hipótese levantada a partir de dados de literatura. Para tanto, preparou-se o laminário segundo técnicas convencionais e foram observados morfologicamente os embriões das sementes obtidas de 100 frutos. O fruto de T. tipu é uma sâmara, cuja ala se desenvolve a partir da região látero-apical do ovário e lateral do estilete, já estando delineada no ovário de botões florais jovens. As sementes, provenientes de óvulos bitegumentados, são unitegumentadas e testais. A testa não exibe a estrutura característica do tegumento das leguminosas, como...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tipuana tipu; Fabaceae; Fruit; Seed; Development.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042001000100012

Oil glands in the Neotropical genus Dahlstedtia Malme (Leguminosae, Papilionoideae, Millettieae)
Provedor de dados: 88
Autores: Teixeira,Simone de Pádua; Rocha,Joecildo Francisco.
Dahlstedtia pentaphylla (Taub.) Burkart and D. pinnata (Benth.) Malme belong to the Millettieae tribe and are tropical leguminous trees that produce a strong and unpleasant odour. In the present work, we investigated the distribution, development and histochemistry of foliar and floral secretory cavities that could potentially be related to this odour. The ultrastructure of foliar secretory cavities were also studied and compared with histochemical data. These data were compared with observations recorded for other species of Millettieae in order to gain a phylogenetic and taxonomic perspective. Foliar secretory cavities were only recorded for D. pentaphylla. Floral secretory cavities were present in the calyx, wings and keels in both species; in D....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anatomy; Development; Histochemistry; Secretory cavity; Ultrastructure.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042009000100006

Digestible Threonine Levels in the Starter Diet of Broilers Derived from Breeders of Different Ages
Provedor de dados: 89
Autores: Tanure,CBGS; Santos,JS; Oliveira,EM; Laboissiere,M; Racanicci,AMC; Mc Manus,CM; Café,MB; Stringhini,JH.
ABSTRACT The aim of this study was to evaluate the effect of digestible threonine supplementation in the starter diet on the performance, intestinal parameters, and nutrient metabolism of broilers derived from breeders of different ages. In total, 480 one-day-old Cobb chicks, derived from 38-or 49-week-oldbreeders, were housed in experimental battery cages until 21 days of age and fed four different threonine levels (800, 900, 1,000, or 1,100 mg/kg) in the starter feed. A completely randomized experimental design in a 2x4 factorial arrangement (breeder age x threonine levels) was applied, totaling eight treatments with five replicates of 12 birds each. Broilers from older breeders fed 800 mg digestible threonine/kg of diet presented higher weight gain,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Development; Metabolism; Nutrition; Poultry.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015001000031

Effect of breeder age on eggshell thickness, surface temperature, hatchability and chick weigh
Provedor de dados: 89
Autores: Gualhanone,A; Furlan,RL; Fernandez-Alarcon,MF; Macari,M.
Two experiments were carried out to study the effect of breeder age on incubation parameters (hatchability, eggshell thickness, egg surface temperature and chick weight). In Exp. 1, fertile eggs (30- and 60-wk-old breeders) were incubated at three different temperatures (36.8, 37.8 and 38.8 ºC). Eggshell surface temperature was measured by attaching a thermocouple to the shell and data were collected in a datalogger every ten minutes. This study was conducted according to a 3 x 2 factorial design (three temperatures and two breeder ages). Data revealed that eggshell surface temperature changed according to incubation temperature, with the main increase occurring between 10 and 13 days of incubation, and that the maximum increase in eggshell surface...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler breeder; Development; Embryo; Temperature; Incubation.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000100002

Biotic potential and reproductive parameters of Spodoptera eridania (Stoll) (Lepidoptera, Noctuidae) in the laboratory
Provedor de dados: 92
Autores: Montezano,Débora Goulart; Specht,Alexandre; Sosa-Gómez,Daniel Ricardo; Roque-Specht,Vânia Ferreira; Barros,Neiva Monteiro de.
Biotic potential and reprodutcive parameters of Spodoptera eridania (Stoll) (Lepidoptera, Noctuidae) in the laboratory: This study aimed to evaluate the biotic potential and reproductive parameters of Spodoptera eridania (Stoll, 1782) under controlled conditions (25 ± 1ºC, 70 ± 10% RH and 14 hour photophase). The longevity, pre-, post- and oviposition periods, fecundity and fertility of 15 couples was evaluated. The longevity of females (10.80 days) was not significantly higher than those of males (9.27 days). The mean durations of the pre, post and oviposition periods were 2.067, 0.600 and 8.133 days, respectively. The mean fecundity per female was 1,398 eggs and the mean fertility was 1,367.50 larvae. On average, females copulated 1.133 times. A strong...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Armyworm; Development; Insecta; Reproduction; Spermatophore.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262013000300014

Phenology of Spalangia endius Walker (Hymenoptera, Pteromalidae) in pupae of Musca domestica Linnaeus (Diptera, Muscidae) under laboratory conditions
Provedor de dados: 92
Autores: Araújo,Dani Furtado de; Krüger,Rodrigo Ferreira; Ribeiro,Paulo Bretanha.
This work describes the phenology of Spalangia endius Walker in pupae of Musca domestica Linnaeus under laboratory conditions. In order to understand the developmental cycle of Spalangia endius under laboratory conditions, 360 Musca domestica pupae aged from 24 to 48 hours were exposed to 15 S. endius pairs for a period of 24 hours at 26 ± 2ºC. These pupae were kept in a BOD incubator at the same temperature, with a relative humidity of &lt;70%, and 12 hours photophase. Fifteen hymenopteran specimens were dissected daily to evaluate their stage and development time. The phenology concluded that S. endius had a development cycle of 19 days with an incubation period of 24 hours. The development of the larvae of S. endius occurred in the subsequent eight...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Development; Feedlot cattle; Parasitoid.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262012000400017

Biology and reproductive capacity of Spodoptera eridania (Cramer) (Lepidoptera, Noctuidae) in different soybean cultivars
Provedor de dados: 92
Autores: Favetti,Bruna Magda; Butnariu,Alessandra Regina; Foerster,Luís Amilton.
This study aimed to evaluate the development, survival and reproductive capacity of Spodoptera eridania in four soybean cultivars. The experiment was conducted in the laboratory, in a climatic chamber at 25 °C ± 1 °C, 70 ± 10% relative humidity and 12 h photophase. The cultivars used were: FMT Tabarana, BRS/MT Pintado, FMT Tucunaré and Monsoy 8757, all conventional cultivars with medium cycles. All cultivars tested allowed the development of S. eridania. However, Monsoy 8757 was the cultivar that most affected the prolonged in the duration larval, pupal and total cycle, showed lower pupal weight as well as reduction in the intrinsic rate increase. These results contribute to the management of this species in regions of outbreaks in soybean areas.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Development; Glycine max; Monsoy 8757; Southern armyworms.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262015000200089

Dry matter partitioning differences between shoots and roots in two contrasting genotypes of orchids and their relationship with endogenous levels of auxins, cytokinins and abscisic acid
Provedor de dados: 93
Autores: PERES,LÁZARO E. P.; MAJEROWICZ,NIDIA; KERBAUY,GILBERTO B.
Epiphytic orchids have been considered an interesting model for plant development and may have unusual features related to the hormonal control of shoot and root growth. In the present experiment we have studied two genotypes of Catasetum fimbriatum Lindl. (Orchidaceae) with an inverse pattern of shoot and root dry matter accumulation. Whereas the CFC1 genotype directs 60% of dry matter towards the shoot system, this same amount is directed towards the root system in the CFC4 genotype. Differences in the endogenous content of cytokinins, IAA and ABA, as well as differences in IAA conjugation and oxidation in shoots and roots were observed in the two genotypes. These differences were correlated with their dry matter partitioning patterns. Thus, the genotype...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Epiphytes; Development; In vitro culture; Orchids; Plant hormones.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-31312001000200007

Promoting fruit seedling growth by encapsulated microorganisms
Provedor de dados: 94
Autores: Santos,Carlos Henrique Barbosa; Martins,Antonio Baldo Geraldo; Rigobelo,Everlon Cid; Teixeira,Gustavo Henrique de Almeida.
Abstract  The use of microorganisms capable of promoting plant growth has been accepted as an alternative to reducing the use of chemical fertilizers. The aim of this study was to evaluate the inoculation of plant growth promoting microorganisms in seedlings of fruit species, verifying the interaction of the inoculums with encapsulating agents such as clay and alginate. Microbial inoculums contained the following species: Azospirillum brasilense, Burkolderia cepacia, Bacillus thuringienses, Bacillus megaterium, Bacillus cereus,Bacillus subtilis, Tricoderma spp. and isolate 411. The fruit species evaluated were: Myrciaria cauliflora (DC.) O. Berg; Myrciaria glazioviana (Kiaersk.) G. Barros &amp;Sobral; Myrciaria dubia (Kunth) Mc Vaugh; Eugenia brasiliensis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fruit plants; Development; Encapsulation; Plant-growth promoting agents.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000301001

Antioxidant compoundsand total antioxidant activity in fruits of acerola from cv. Flor Branca, Florida Sweet and BRS 366
Provedor de dados: 94
Autores: Souza,Kellina Oliveira de; Moura,Carlos Farley Herbster; Brito,Edy Sousa de; Miranda,Maria Raquel Alcântara de.
Information on antioxidant properties at different ontological stages may help producers and food technologists to identify which cultivar and/or maturity stage are most adequate for their need, therefore this work aimed to study the changes in the antioxidant metabolism during acerola development. Fruit from cv. Flor Branca, BRS366 and Florida Sweet were harvested at different stages: immature green colored (I), physiologically mature with green color and maximum size (II), breaker (III) and full red ripe (IV). After harvest, fruits were selected, divided into four replications with 500 g each and evaluated regarding their titratable acidity, pH, soluble solids, total soluble sugar, vitamin C, polyphenol, anthocyanin, yellow flavonoid, total antioxidant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Malpighia emarginata; Development; Vitamin C; Enzymes; Polyphenols.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452014000200004

GROWTH, YIELD AND POSTHARVEST QUALITY OF WAX APPLE AS AFFECTED BY NAPHTHALENE ACETIC ACID APPLICATION
Provedor de dados: 94
Autores: KHANDAKER,MOHAMMAD MONERUZZAMAN; HOSSAIN,ABM SHARIF; OSMAN,NORMANIZA; MAT,NASHRIYAH; BOYCE,AMRU NASRULHAQ.
Results of this study represent the first report of the effect of Naphthalene Acetic Acid (NAA) on the pre and post harvest quality of wax apple fruit. The wax apple trees were spray treated with 0, 5, 10 and 20 mg L-1 NAA under field conditions during 2008 to 2011. The experiments were carried out in Completely Randomized Design (CRD) with six replications. Leaf chlorophyll content, chlorophyll fluorescence, photosynthetic yield, net photosynthetic rate, drymatter content of leaves and total soluble solids and K+content of wax apple fruits were significantly increased after treatments with 10 mg L-1. Polygalacturonase activity significantly decreased with NAA treatments. The application of 5 mg L-1 NAA increased 27% more bud and reduced 42% less fruit...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: NAA; Fruit; Development; Pre and postharvest quality.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452015000200410

Biotic potential and reproductive parameters of Spodoptera dolichos (Lepidoptera: Noctuidae) in the laboratory
Provedor de dados: 103
Autores: Montezano,Débora G.; Sosa-Gómez,Daniel R.; Paula-Moraes,Silvana V.; Roque-Specht,Vânia F.; Fronza,Edegar; Barros,Neiva M.; Specht,Alexandre.
ABSTRACT The biotic potential and reproductive parameters of Spodoptera dolichos (Fabricius, 1794) were evaluated under controlled conditions (25 ± 1°C, 70 ± 10% RH and 14 hour photophase). The longevity, pre-, post- and oviposition periods, fecundity, and fertility of 25 couples were evaluated. The longevity of females (12.9 days) was not significantly different than that of males (12.4 days). The mean durations of the pre-, post- and oviposition periods were 3.0, 0.4 and 10.4 days, respectively. The mean fecundity was 4,086.0 eggs per female and mean fertility was 3,557.8 larvae per female. On average, a female copulated 1.4 times. The biotic potential of S. dolichos was estimated at 7.138 x 1018 individuals/female/year. The net reproductive rate (Ro)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Armyworm; Development; Fecundity; Reproduction; Spermatophore.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000600485

Genotoxic effect of Phenanthrene on Chironomus sancticaroli (Diptera: Chironomidae)
Provedor de dados: 103
Autores: Morais,Gisele dos Santos; Pesenti,Emanuele Cristina; Cestari,Marta Margarete; Navarro-Silva,Mário Antônio.
Phenanthrene, a Polycyclic Aromatic Hydrocarbon, remains adsorbed to sedimentary particles in aquatic environments. It affects mainly benthic organisms, and is considered potentially genotoxic. In ecotoxicology, species of Chironomus Meigen, 1803 are widely known as bioindicators of the effects of chemicals on aquatic organisms. This study investigates the effects of phenanthrene on the size of the head capsule of Chironomus sancticaroli Strixino &amp;amp; Strixino, 1981 larvae after chronic (eight days) exposure, and DNA damage after acute (96 hours) and chronic exposure (eight days), under laboratory conditions. DNA damage, evaluated using the alkaline comet assay, detected effects for both exposure periods, indicating that phenanthrene is toxic for C....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioassay; Bioindicador; Development; DNA damage; PHAs.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000400003

Life cycle of Agrotis malefida (Lepidoptera: Noctuidae): a diapausing cutworm
Provedor de dados: 103
Autores: Specht,Alexandre; Angulo,Andrés O.; Olivares,Tania S.; Fronza,Edegar; Roque-Specht,Vânia F.; Valduga,Eduardo; Albrecht,Francine; Poletto,Graziela; Barros,Neiva M.
This study describes the life cycle of Agrotis malefida Guenée, 1852 (Noctuidae: Noctuinae) under laboratory conditions. The insects were reared in a controlled environment (25 ± 1ºC, 70 ± 10% RH and 14 hours photo phase) and observed daily. The larvae were fed Greene's artificial diet and adults were offered a 10% sucrose solution. The viability and duration of immature stages were assessed. The experiment initiated with 2,410 eggs. Larvae were isolated shortly after hatching. Longevity, pre-, post- and oviposition, fecundity and fertility of 13 adult couples were also evaluated. The viability of eggs, larvae, pupae and pre-pupae was 96.72, 91.25, 78.37 and 95.26%, respectively. The average duration of egg, larva, pre-pupa, pupa and adult was 7.93, 54.26,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bionomy; Caterpillar; Development; Diapause.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000400002

Immature stages of Spodoptera cosmioides (Lepidoptera: Noctuidae): developmental parameters and host plants
Provedor de dados: 103
Autores: Specht,Alexandre; Roque-Specht,Vânia F.
ABSTRACT The goal of this study was to detail the temporal and morphological parameters of the immature stages of Spodoptera cosmioides (Walker, 1858) and to gather information about their larval host plants. Larvae were reared on artificial diet and under controlled conditions (25 ± 1°C, 70 ± 10% RH and 14 hour photophase). The viability of eggs, larvae (pre-pupae period inclusive) and pupae were 98.97, 97.33, 97.95 and 94.76%, respectively. The average duration of egg, larval, pre-pupal and pupal stages was 3.82, 19.24, 3.20 and 14.81 days, respectively. A small proportion of females (9.48%) passed through seven instars, and female development was significantly slower than male development. The female larvae that developed through six and seven instars...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Armyworm; Artificial diet; Development; Life cycle; Soybean pod armyworm.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702016000400501

Nursery performance of the pink shrimp Farfantepenaeus paulensis (Crustacea: Decapoda: Penaeidae) postlarvae in different salinities
Provedor de dados: 103
Autores: Costa,Rafael F.; Yasumaru,Fanny A.; Lemos,Daniel.
Nursery performance, development, and RNA:DNA ratio were investigated in Farfantepenaeus paulensis (Pérez-Farfante, 1967) postlarvae acclimated from a salinity of 30‰ to higher (35‰) or lower (16, 22 and 29‰) salinities and reared for 20 days. Overall, higher final weight, yield and growth rate were observed at a salinity of 29‰. RNA:DNA ratio indicated reduced growth potential at a salinity of 35‰. Low salinities resulted in more developed individuals. Thus, early postlarval F. paulensis should not be stocked in salinities higher than that of the original hatchery, otherwise in lower salinities postlarvae should be older and/or have an extended nursery phase. Results may assist in the development of nursery rearing protocols for F. paulensis, an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Crustacean; Development; Growth.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000300001

Effect of pectin extracted from citrus pulp on digesta characteristics and nutrient digestibility in broilers chickens
Provedor de dados: 96
Autores: Silva,Vanessa Karla; Morita,Viviane de Souza; Boleli,Isabel Cristina.
The experiment was carried out to evaluate the effects of continuous ingestion of pectin on intestinal viscosity, intestinal transit time, excreta moisture content, nutrient digestibility and energy metabolism of broilers at starter and growth phases. We used 240 one-day-old Cobb male broiler chicks, distributed in a completely randomized experimental design. Treatments consisted of four concentrations of pectin (0, 10, 30 and 50 g kg-1) with six replicates of 10 birds each. The ingestion of pectin supplied in the feed by broilers at the starter phase increased intestinal viscosity and intestinal transit time, reduced excreta moisture, improved the use of apparent metabolizable energy, nitrogen-corrected apparent metabolizable energy, coefficient of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Development; Feed additive; Metabolism; Soluble fiber; Viscosity.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000800007

Chlorophyll and carbohydrates in Arachis pintoi plants under influence of water regimes and nitrogen fertilization
Provedor de dados: 96
Autores: Sales,Rita Manuele Porto; Fries,Daniela Deitos; Pires,Aureliano José Vieira; Bonomo,Paulo; Santos,Iasminy Silva; Campos,Cleide Nascimento; Brito,Paulo Henrique Rodrigues; Brito,Mateus Santos.
In this experiment the chlorophyll and carbohydrate contents of Arachis pintoi were evaluated to verify if the presence of nitrogen in the soil could contribute to the effectiveness of the establishment of this legume. The design was completely randomized, in a 4 × 4 factorial arrangement, with four N rates (0, 40, 80 and 120 kg ha-1) and four irrigation levels (25, 50, 75 and 100% of field capacity), with four replications. The biochemical evaluations of chlorophylls a and b and total chlorophyll and total soluble sugars, sucrose and starch were performed. The highest contents of chlorophyll a and b and total chlorophyll in leaves were found at the dose of 120 kg ha-1. The water regime of 25% of field capacity was responsible for the lowest content of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Development; Field capacity; Legume; Starch; Sugars.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000600002

Adjustment of four growth models through Bayesian inference on weight and body nutrient depositions in laying quail
Provedor de dados: 96
Autores: Finco,Eline Maria; Marcato,Simara Márcia; Furlan,Antonio Claudio; Rossi,Robson Marcelo; Grieser,Daiane de Oliveira; Zancanela,Vittor; Oliveira,Taciana Maria Moraes de; Stanquevis,Caroline Espejo.
ABSTRACT An experiment was conducted to estimate the parameters of the Gompertz, Brody, Logistic, and Von Bertalanffy equations through Bayesian inference and evaluate the potential for growth in terms of weight and body composition of laying female quail (Coturnix coturnix japonica). The weights and body compositions of the birds were obtained weekly (1-119 days), allowing the adjustment of the four equations by Bayesian inference. The parameters mature weight (β1), integration constant (β2), maturity rate (β3), and their credibility intervals in four models on body weight and body components were properly estimated by Bayesian inference to describe the body growth in laying quail. The inflection point was determined by the 1st and 2nd derivatives of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adjust quality; Development; Maturity rate; Nonlinear models; Weight at maturity.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016001200737

Beyond selection
Provedor de dados: 97
Autores: VARGAS,ALEXANDER O.
It has been argued that the study of natural selection and quantitative genetics should have a central role in evolutionary thinking and undergraduate teaching in Chile. Extensive operational use of the concept of natural selection may seem consistent with this argument. However, advances of evolutionary knowledge in independent fields such as phylogenetic analysis, developmental evolution, and paleontology cannot be ignored. I argue here that the role of natural selection in contemporary evolutionary biology can be compared to that of Newtonian mechanics in contemporary physics: it can describe a given domain of observations, but it is insufficient to handle the different sources of evolutionary knowledge. Overemphasis on natural selection as the...
Tipo: Journal article
Palavras-chave: Evolution; History; Development; Epigenesis; Drift.
Ano: 2005
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2005000400012

The sequence of origin of the postmetamorphic rays in Heliaster and Labidiaster (Echinodermata: Asteroidea)
Provedor de dados: 97
Autores: SANCHEZ R,PATRICIO.
Postmetamorphic rays in Heliaster and Labidiaster originate in four `quadrants' between the five primary rays, and not normally in the madreporic interradius. The rays originate in one of two very definite sequences depending on the species. H. kubiniji and H. multiradiatus share one sequence, whereas H. canopus, H. helianthus and Labidiaster share the other sequence. Pycnopodia, Rathbunaster, Heliaster and Labidiaster add rays at far greater sizes and in a manner that is distinctive from other multiradiate starfish, possibly indicating a new taxonomic unit
Tipo: Journal article
Palavras-chave: Echinodermata; Development; Symmetry; Heliaster; Labidiaster.
Ano: 2000
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000400002

Morphogenic responses of the roots of Arabidopsis thaliana (Magnoliophyta: Brassicales) to Cr(VI) stress
Provedor de dados: 97
Autores: MARTÍNEZ-TRUJILLO,MIGUEL; SOLÍS-GUZMÁN,GLORIA; JIMÉNEZ-SARAGOZ,JUAN CARLOS; LÓPEZ-HERNÁNDEZ,DOMINGO; CARREÓN-ABUD,YAZMÍN; RÍOS-CHÁVEZ,PATRICIA.
The growth response of roots to stress conditions is a strategy that allows the plant to either avoid the adverse conditions or to adapt to them. H an activities have resulted in the accumulation of some metals from certain concentrations have an adverse effect on plant growth. Among these, Chromiumumm (Cr) is a serious pollution caused by metal processing industries and leather tanning. To understand in detail the response of roots Cr(VI) stress, it was used an in vitro system with Arabidopsis thaliana utilizing three experimental conditions. (A) Plants germinated and grown for 6 days, without lateral roots, were transferred to media with different concentrations of Cr(VI). This allowed the evaluation as affecting the growth of the primary root to move...
Tipo: Journal article
Palavras-chave: Chromiumum; Development; Plant; Root.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2013000200009

The Livestock Roles in the Wellbeing of Rural Communities of Timor-Leste
Provedor de dados: 123
Autores: Bettencourt,Elisa Maria Varela; Tilman,Mário; Narciso,Vanda; Carvalho,Maria Leonor da Silva; Henriques,Pedro Damião de Sousa.
The livestock species play very important economic and socio-cultural roles for the wellbeing of rural households, such as food supply, source of income, asset saving, source of employment, soil fertility, livelihoods, transport, agricultural traction, agricultural diversification and sustainable agricultural production. The aim of this work was to identify and characterize the different roles that livestock and livestock species play in rural communities of Timor-Leste, highlighting the importance of animal production for the wellbeing and rural development, and relate the functions performed by livestock production with economic, social and cultural attributes of the communities. The data used in this study were collected in 2011 through a questionnaire...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Timor-Leste; Livestock; Wellbeing; Development.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-20032015000600063

The role of information in meat sheep production
Provedor de dados: 195
Autores: Raineri, Camila; Stivari, Thayla Sara Soares; Gameiro, Augusto Hauber.
This essay presents reflections on the importance of information to lamb supply chain, on the challenges exacerbated by information asymmetry and on some initiatives to mitigate the problem. Meat sheep industry still suffers from a lack of organization and communication between segments. Breeders who are aware about the need of adopting a business view are seeking for assistance and information, but many breeders are not. This situation is related to the difficulties of information diffusion, due to the scarcity of extension agents and professionals in sheep breeding. Access to information does not constitute an entry barrier for initiating the activity, but the lack of technical knowledge can be an obstacle to its viability. There is need to improve...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agribusiness; Development; Production cost; Professionalization; Sheep husbandry; Custo de produção; Desenvolvimento; Ovinocultura; Profissionalização; Sistema agroindustrial.
Ano: 2014
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/23107

Effects of some sesquiterpenes on the stored-product insect Tenebrio molitor (Coleoptera: Tenebrionidae)
Provedor de dados: 99
Autores: García,Matías; Sosa,Marta E.; Donadel,Osvaldo J.; Giordano,Oscar S.; Tonn,Carlos E.
In order to evaluate the allelochemical activity of some sesquiterpenes isolated from the native plant Tessaria absinthioides (Hook. et Arn.) DC, and some semi synthetic derivatives against Tenebrio molitor L. larvae, we have developed bioassays directed to quantify repellency, larval mortality, and its effects on the development. Although costic aldehyde caused the maximum repellent effect, all the compounds showed a significant effect at some dose or time, indicating behavioral avoidance. The topical application of costic aldehyde produced the largest increase on the duration of the pupal stage. Tessaric acid exhibited the highest toxicity by topical application at the experiment closure. Both eremophilane-1(10),2,11(13)-triene-12-oic, and &lt;img...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sesquiterpenes; Tenebrio molitor; Repellency; Development; Mortality.
Ano: 2003
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802003000200002

Morphological, behavioral and biological aspects of Azya luteipes Mulsant fed on Coccus viridis (Green)
Provedor de dados: 63
Autores: Nais,Juliana; Busoli,Antonio Carlos.
One of the major pests of nursery seedlings of coffee (Coffea arabica L.) is the green scale, Coccus viridis (Green) (Hemiptera: Coccidae). The main predators of this species are beetles of the family Coccinellidae, especially Azya luteipes Mulsant. Morphological, behavioral and biological aspects of A. luteipes feeding on C. viridis on coffee plants were examined under laboratory conditions. Tests were conducted in room temperature at 28 ± 2 ºC. A. luteipes oviposits on the underside of the scale's body, laying two to four eggs per insect. The eggs have a subelliptical form and a white-clear color, and the incubation period is 8.3 ± 1.2 days. The number of eggs laid per female per day varies between eight and ten. A. luteipes undergoes four larval instars...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coccinelids; Green scale; Development; Oviposition behavior; Life cycle.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000100012

Risk of field cultivation of pickling cucumber caused by unfavorable sunshine duration conditions
Provedor de dados: 63
Autores: Kalbarczyk,Robert.
Solar energy, accessible to plants during sunshine from the sunrise to the sunset is of key importance in productivity of agrocenoses. The aim of the work was to determine risk of pickling cucumber cultivation caused by an unfavorable course of sunshine duration in Poland on the basis of a 40-year research period 1966-2005. The research into the subject was undertaken due to frequent occurrence of sunshine deficiency in Poland and its high temporal and spatial variability. Effect of solar conditions described by sunshine duration in the five development stages on the quantity of the total and marketable yield of cucumber with consideration of a linear trend of an independent variable was determined by means of multiple regression analysis. The accuracy of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Development; Growth; Reduction in yield; Solar conditions.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000300009

Growth and yield of papaya under irrigation
Provedor de dados: 63
Autores: Almeida,Frederico Terra de; Bernardo,Salassier; Sousa,Elias Fernandes de; Marin,Sérgio Lúcio David; Grippa,Sidney.
Thermal units or degree day systems can both be used to quantify relationships between plants and air temperature. The Northern Fluminense region holds no tradition for irrigated papaya (Carica papaya L.) cropping and, because of the need for irrigation, it is important knowing its growth and development characteristics under these conditions. This study aimed to determine the relationship between growth rate of papaya plants and degree days, and its effect on crop productivity, under different irrigation levels. An experiment was set up with the cultivar "Improved Sunrise Soil 72/12", in a randomized blocks design, with seven irrigation water depths and three repetitions; crop growth and yield parameters were evaluated. There were significant correlations...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Irrigation management; Development; Papaya; Productivity.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000300001

Development of reduced calories fragrance rice butter cake
Provedor de dados: 106
Autores: Chompreeda, P.; Haruthaithanasan, V.; Petchmak, P.; Tipkanon, S.; Parakul, R.
Palavras-chave: Development; Reduced; Calories; Fragrance; Rice butter; Cake.
Ano: 2004
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4923

Stimulating effects of foliar K-Fertilizer applied at appropriate stage of development of corn: Second field confirmation
Provedor de dados: 106
Autores: Amnat Suwanarit; Sodsai Changsaluk.
2 tables
Palavras-chave: Corn; Maize; Foliar K-fertilizer application; Growth; Development; ข้าวโพด; การให้ปุ๋ยทางใบ; ปุ๋ยไนโตรเจน; ระยะการเจริญเติบโต.
Ano: 1989
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4352

Business transacted during the last session
Provedor de dados: 106
Palavras-chave: Corn; Maize; Production; Development; ข้าวโพด; ธุรกิจข้าวโพด.
Ano: 1972
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3917

Research, development, and distribution to users of hybrid maize Nakhon Sawan 72
Provedor de dados: 106
Autores: Pichet Grudloyma; Chutima Koshawatana.
Palavras-chave: Corn; Maize; Hybrids; Nakorn Sawan 72; Research; Development; Distribution.
Ano: 2001
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4189

Thailand seed industry development in perspective
Provedor de dados: 106
Autores: Gregg, Bill; Petcharat Wannapee.
1 ill., 3 tables
Palavras-chave: Seed industry; Development; Thailand; ข้าวโพด; ข้าวฟ่าง; อุตสาหกรรมเมล็ดพันธุ์; การขยายเมล็ดพันธุ์; กระบวนการผลิตเมล็ดพันธุ์; การเก็บรักษาเมล็ดพันธุ์; คุณภาพเมล็ดพันธุ์; กฎหมายเมล็ดพันธุ์.
Ano: 1981
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4077

Research for development and administration of the National Corn and Sorghum Research Center
Provedor de dados: 106
Palavras-chave: National Corn and Sorghum Research Center; Research; Development; Administration; ข้าวโพด; ข้าวฟ่าง; ศูนย์วิจัย; โครงสร้าง; บุคลากร; ระบบพัสดุ; การจัดการ.
Ano: 1979
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3999

Development of dehydrated Tom Yum Kung
Provedor de dados: 106
Autores: Sriwattana, S.; Resurreccion, A.; Haruthaithanasan, V.; Chompreeda, P.
Palavras-chave: Dehydrated; Development.
Ano: 2002
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4942

Development of filling from peanut butter with high nutritive value
Provedor de dados: 106
Autores: Thanomwong, C.; Chompreeda, P.; Haruthaithanasan, V.
Palavras-chave: Development; Peanut; Nutritive; Value.
Ano: 2005
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4907

Technical cooperation project on maize development in Thailand
Provedor de dados: 106
Autores: Yamaki, Tetsuji.
Palavras-chave: Corn; Maize; Development; Technical cooperation project; Activities; Applied experiment; Seed multiplication; Extension; Demonstration; Training; Agricultural cooperatives; Management; Thailand; ข้าวโพด; ศูนย์สาธิต; ศูนย์ส่งเสริม; การผลิตเมล็ดพันธุ์; การตลาด; การผลิตปุ๋ย; ร็อกฟอสเฟท.
Ano: 1981
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4042

การพัฒนาและผลิตผลิตภัณฑ์ขนมขบเคี้ยวเพื่อการควบคุมและป้องกันโภชนาการเกินในเด็ก
Provedor de dados: 106
Autores: Nednapis Vatanasuchart; Plernchai Tangkanakul; Wandee Sudtinarakorn; Chulaluck Charunuch; Nipat Limsangouan; Payom Auttaviboonkul; Wanchai Worawattanamateekul; Natthorn Intawiwat.
Tipo: PhysicalObject
Palavras-chave: Product; Development; Snack; โภชนาการ; เด็ก; ผลิตภัณฑ์ขนมขบเคี้ยว; พฤติกรรมการบริโภค; ภาวะโภชนาการ; เครือข่ายความร่วมมือ; การถ่ายทอดเทคโนโลยี.
Ano: 2012
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5255

Toxicity of fixed oil and crude extract from sa-dao-thiam, Azadirachta excelsa (Jack) seed kernel to Aedes aegypti (L.)
Provedor de dados: 106
Autores: Ekkarat Kaewnang-O; Aran Ngampongsai; Sanan Subhadhirasakul; Teerapol Srichana.
Larvicidal activity of various concentrations of fixed oil and crude extract from sa-dao-thiam, Azadirachta excelsa (Jack) seed kernel was assayed on an Aedes aegypti (L.) test population under controlled laboratory conditions. Concentration levels of responses at 24, 48, 72, and 96 hrs were evaluated. The LC50 values of the fixed oil and the crude extract were 403.6 and 518.7 ppm, respectively. One hundred percent mortality in 24 hrs-post treatment was achieved at 2,000 and 4,000 ppm for the oil and crude extract, respectively. It suggested that the oil is more toxic to Ae. aegypti larvae than the crude extract. Further investigation suggested the occurrence of molting inhibition of Ae. aegypti larvae by the fixed oil and crude extract as indicated by the...
Tipo: Collection
Palavras-chave: Azadirachta excelsa; Aedes aegypti; Toxicity; Development; Histology; สะเดาเทียม; สารสกัด; ยุงลาย; ความเป็นพิษ; ผลตกค้าง; อัตราการรอด.
Ano: 2011
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5218

On the development of the brown spider Loxosceles gaucho Gertsch (Araneae, Sicariidae): the nympho-imaginal period
Provedor de dados: 104
Autores: Rinaldi,Isabela M.P; Forti,Luiz C; Stropa,André A.
Observations of the developmental biology of Loxosceles gaucho Gertsch, 1967, the brown spider of southeastern Brazil are scarce. The present study reports the method of individualized rearing of 18 populations of L. gaucho, kept in laboratory under varied diet conditions, and characterizes their nympho-imaginal period as well as factors related to their reproduction. Females built the first egg sac about 20 days after copulation and nymphs hatched 40 days after the laying date. Average offspring was 61.3 spiderlings and females usually built three to four successive egg sacs in a period of five to seven months. First nymphs initiated their predatory activity between the 5th and 8th days after hatching and the majority reached adulthood within six moults...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brown spider; Loxosceles gaucho; Sicariidae; Development.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751997000300018

Oviposição e desenvolvimento de Brachycephalus ephippium (Spix) (Anura, Brachycephalidae)
Provedor de dados: 104
Autores: Pombal Jr,José P.
The Pumpkin toadlet, Brachycephalus ephippium (Spix, 1824), is an orangish daily anuran, which inhabits the litter of the Atlantic Forest of Southeastem Brazil. During a survey of this species' natural history in the vicinities of Campinas (22º52'S, 46º49'W), São Paulo State, field observations were made on the oviposition behavior, in which after the male left the oviposition site, the female covered the surface of ali eggs with soil particles. She pressed and rolled each egg against the ground using her hindfeet, until the eggs were indistinguishable from the litter background. A clutch was obtained in laboratory and two others were found in the field. After 25 days of development the embryo possess a big yolk sac, differentiated mouth and a small tail...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachycephalidae; Brachycephalus; Development; Oviposition behavior; Anuran.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000400004

Desenvolvimento morfológico e dos ovários de Kalliapseudes schubarti Mañe-Garzon (Crustacea, Tanaidacea) do Canal de São Sebastião, São Paulo, Brasil
Provedor de dados: 104
Autores: Leite,Fosca Pedini Pereira; Leite,Paulo Eduardo Pereira.
The morphological stages of the Kalliapseudes schubarti Mañe-Garzon, 1949 females were easily determinated and they were similar, but the male stages show distint forms probably due to the ambient stimuli. The description of the male stages demonstrate that K. gianucai (Bacescu, 1979) is another male stage of K. schubarti, probably a secondary copulatory stage. The morphology and development of the ovary is related both with the maturity and with the morphological modifications of females stages.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacea; Tanaidacea; Morphology; Development; Stages; Ovary.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751997000300016

Desenvolvimento juvenil de Cyrtograpsus angulatus Dana (Crustacea, Decapoda, Grapsidae), em laboratório
Provedor de dados: 104
Autores: Rieger,Paulo Juarez; Beltrão,Roberta.
This paper describes the first nine juvenile stages of Cyrtograpsus angulatus Dana, 1851 obtained in laboratory conditions from three ovigerous females collected at "Molhes da Barra", Rio Grande, Brazil (32ºS and 52ºW). The main morphological features, the secondary sexual characters and the gills ontogeny were observed. Twenty one individuals reached until the ninth juvenile stage. Sexual dimorphism can be verified from the fourth juvenile stage and the number of gills are complete at the second juvenile stage.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacea; Brachyura; Grapsidae; Development; Juvenile.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000200012

Perceptions of Amazonian deforestation in the British and Brazilian media
Provedor de dados: 36
Autores: Ladle,Richard J.; Malhado,Ana Claudia Mendes; Todd,Peter A.; Malhado,Acacia C. M.
The Amazon rainforest stretches across more than six million square kilometers and nine countries. Of the original forest area it is thought that 18 per cent has been cleared, mainly for farming purposes. In Brazil, the main drivers of deforestation are beef ranching and soya production that together occupy more than 75 per cent of newly deforested land. The situation in the Amazon illustrates a fundamental dilemma facing environmentalists around the world: how to reconcile economic development with biodiversity conservation. In this paper the representation of this dilemma in the British and Brazilian news media is assessed. The results indicate that there were far more articles referring to deforestation in the Brazilian press (816 Brazilian to 29 UK)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Development; Globalization; Amazon rainforest; Newspapers.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672010000200010

Ambystoma mexicanum, A MODEL ORGANISM IN DEVELOPMENTAL BIOLOGY AND REGENERATION: A COLOMBIAN EXPERIENCE
Provedor de dados: 37
Autores: HINCAPIE,Melisa; CARBONELL-MEDINA,Belfran; ARENAS-GOMÉZ,Claudia Marcela; DELGADO,Jean Paul.
ABSTRACT Ambystoma mexicanum is a urodele amphibian endemic to Xochimilco Lake in Mexico, it belongs to the salamander family Ambystomatidae. This species has frequently been used as model organism in developmental biology and regeneration laboratories around the world due to its broad regenerative capacities and adaptability to laboratory conditions. In this review we describe the establishment of the first colony of axolotls in Colombia to study tissue regeneration and our perspectives on the use A. mexicanum as a model organism in Colombia are discussed emphasizing its possible uses in regeneration and developmental biology.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal model; Axololts; Development; Embryonic Development; Salamanders.
Ano: 2022
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2022000100113

Effect of flooding on survival and initial growth of Ocotea pulchella (Nees) Mez. seedlings in semi-controlled light conditions
Provedor de dados: 39
Autores: Pires,Luciana Andrea; Cardoso,Victor José Mendes.
Taking into account the occurrence of Ocotea pulchella in areas subjected to periodic flooding, this work aimed to evaluate the survival and initial development of Ocotea pulchella seedlings (2 months old) and juveniles (9 months old) in response to waterlogging under different light regimes by varying both light quantity and light quality, in order to test for possible flood tolerance of the species as affected by light conditions. Three levels of soil moisture (field capacity, mean flooding - only for seedlings - and full flooding) and four light treatments (full sun, neutral shade, far red enriched shading and neutral plus far red) were tested. The survival of seedlings and juveniles during one year was relatively high, whereas growth was negatively...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Restinga forest; Juveniles; Waterlogging; Development.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062011000200019

Phytotoxicity of organic extracts of Turnera ulmifolia L. and Turnera diffusa Willd. ex Schult. in cucumber seeds
Provedor de dados: 39
Autores: Silvestre,Daniel Moreto; Kolb,Rosana Marta; Frei,Fernando; Santos,Catarina dos.
We evaluated the phytotoxic effects that the hexane, ethyl acetate and methanol extracts from leaves and branches of the species Turnera ulmifolia L. and Turnera diffusa Willd. ex Schult. (Turneraceae), at concentrations of 1.25, 2.50, 3.75 and 5.00 mg ml-1, have on seed germination and seedling development in cucumber (Cucumis sativus L.). None of the extracts tested prevented germination, although the ethyl acetate extracts of T. diffusa, at 3.75 and 5.00 mg ml-1, reduced the mean germination speed and time to germination. Hexane extracts of both species reduced the main root length, number of secondary roots and hypocotyl length. In the ethyl acetate and methanol extracts, the number of secondary roots and hypocotyl length varied by species and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Cucumis sativus; Germination; Development.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000300003

Morphoanatomy and ontogeny of fruit in Bromeliaceae species
Provedor de dados: 39
Autores: Fagundes,Natividad Ferreira; Mariath,Jorge Ernesto de Araujo.
This study aims to give an overall view of fruit structure in Bromeliaceae, since these studies are extremely scarce in this family, showing the morphology, anatomy and ontogeny of fruits of six species belonging to six different genera, representing three subfamilies. All species studied have a tricarpellary and trilocular ovary, with an obturator covering the placental region. Dyckia maritima, Pitcairnia flammea, Tillandsia aeranthos and Vriesea carinata have capsular fruits (septicidal or biscidal), characterized mainly by the presence of macrosclereids in the exocarp or endocarp, fibers in the ventral region of the carpels, six dehiscence lines and three vascular bundles in each carpel. Aechmea calyculata and Billbergia nutans have fruits classified as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anatomy; Bromeliaceae; Development; Ovary; Pericarp.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062010000300020

Starch distribution in anthers, microspores and pollen grains in Aechmea recurvata (Klotzsch.) L.B.Sm., Dyckia racinae L.B.Sm. and Tillandsia aeranthos (Loisel.) L.B.Sm. (Bromeliaceae)
Provedor de dados: 39
Autores: Oliveira,João Marcelo Santos de; Martins,Merielem Saldanha; Dorneles,Mariane Paludette; Freitas,Cesar Carvalho de.
This paper presents a comparative description of the starch distribution in the anthers, microspores and pollen grains of Aechmea recurvata, Dyckia racinae and Tillandsia aeranthos. Flowers at different stages of development were processed according to plant microtechniques for observation by light microscope. Ten stages of embryological development were used as references for the comparative analysis of starch distribution and dynamics. The structural data showed a greater starch accumulation in the parietal layers and connective of D. racinae. It was observed that in the species studied, starch began to accumulate in microspore mother cell stage. The pollen grains in D. racinae and in T. aeranthos present two amylogenesis-amylolysis cycles, while A....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carbohydrates; Development; Microgametogenesis; Microsporogenesis; Sporangium.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000100103

Germination and seedling growth of ornamental species of Passiflora under artificial shade - doi: 10.4025/actasciagron.v34i1.11623
Provedor de dados: 1
Autores: Pires, Marcel Viana; Universidade Federal de Viçosa - UFV; Almeida, Alex-Alan Furtado de; Universidade Estadual de Santa Cruz - UESC; Figueiredo, Abel Louro; Universidade Estadual de Santa Cruz - UESC; Gomes, Fábio Pinto; Universidade Estadual de Santa Cruz - UESC; Souza, Margarete Magalhães; Universidade Estadual de Santa Cruz - UESC.
Passiflora morifolia, P. suberosa litoralis, and P. palmeri var. sublanceolata are three wild species with ornamental potential that occur in Brazil. These species were evaluated with the purpose of determining the effects of different shade levels on seedling emergence and initial growth. Treatment with 50% shade resulted in the highest percentage of seedling emergence and the highest emergence speed index for all three species. The 50% shade level was the best condition for growth of P. morifolia and P. palmeri var. sublanceolata seedlings because in this condition, they presented higher growth in relation to control and the other treatments. However, P. suberosa litoralis can be considered a sun species because it grew better in full sunlight and 25%...
Tipo: Pesquisa em casas de vegetação e laboratório
Palavras-chave: 5.01.00.00-9; 5.01.03.04-0; 5.01.03.06-7 Passifloraceae; Passion flowers; Emergence speed index; Development; Irradiance Produção Vegetal.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/11623

Avaliação de doses e produtos corretores da acidez em variáveis biométricas na produção de mudas de maracujazeiro - DOI: 10.4025/actasciagron.v31i4.529
Provedor de dados: 1
Autores: Souza, Henrique Antunes de; UNESP; Ramos, José Darlan; UFLA; Melo, Paulo César de; UFLA; Hafle, Oscar Marianao; IFET-PB; Rodrigues, Helen Cristina de Arruda; Santos, Veronica Andrade dos; UFLA.
A utilização de produtos corretores da acidez do solo e a crescente busca por novos insumos agrícolas são de suma importância para uma agricultura sustentável e ecologicamente viável. O presente trabalho foi conduzido no viveiro de mudas do Setor de Fruticultura da Universidade Federal de Lavras, Lavras, Estado de Minas Gerais. O delineamento experimental utilizado foi blocos casualizados em esquema fatorial 3 x 4, sendo três produtos, quatro doses e três repetições, as doses foram calculadas de modo que se atingisse a saturação estabelecida, de acordo com a concentração de cada produto. As doses foram: zero, metade, completa e o dobro da dose recomendada. A incubação foi realizada para o silício e calcário, e o Lithothamnium, pela liberação rápida, foi...
Palavras-chave: 5.01.03.04-0    Produção de Mudas Passiflora spp.; Nutrição de plantas; Desenvolvimento Passiflora spp.; Plant nutrition; Development.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/529

Morfoanatomia e ontogênese dos frutos e sementes de Clusia lanceolata Cambess. (Clusiaceae) - doi: 10.4025/actascibiolsci.v32i4.3567
Provedor de dados: 3
Autores: Campana, Regiane Cristina; UEM; Mourão, Káthia Socorro Mathias; UEM; Marzinek, Juliana; UEM.
Clusia lanceolata Cambess é espécie arbustiva da Mata Atlântica. Caracteriza-se por ser dioica, com flores estaminadas e pistiladas grandes, vistosas, de coloração rosa, apresentando a parte interna vinácea. Foram descritos aspectos morfológicos e estruturais dos frutos e sementes dessa espécie, visando classificar corretamente o seu tipo de fruto e, também, confirmar a origem do apêndice carnoso que envolve as sementes. O material botânico utilizado constou de flores em antese e frutos, em quatro estádios de desenvolvimento, coletados de dois espécimes. Os estudos morfológicos e anatômicos foram realizados segundo técnicas usuais. O fruto é cápsula septífraga, esférica, de coloração verde-avermelhado. O exocarpo é unisseriado; o mesocarpo parenquimático...
Palavras-chave: 2.03.00.00-0 Clusioideae; Desenvolvimento; Estrutura; Órgãos reprodutivos Botânica Clusioideae; Development; Reproductive organs; Structure.
Ano: 2010
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/3567

DEVELOPMENT OF A MODEL TO DETERMINE THE SHELF LIFE OF YELLOW VARIETY OF CASHEW FRUIT JUICE AT NON REFRIGERATED STORAGE
Provedor de dados: 111
Autores: chikwado, ugwu kenneth.
ABSTRACTThere is an inevitable decline in quality value of ascorbic acid in storage and distribution of cashew apple juice. The quality value and maximum shelf life of yellow sample of cashew apple juice were estimated and the quality value model based on the deteriorative factors was developed.  It was discovered that balancing these factors led to satisfactory quality control of ascorbic acid degradation in cashew fruit juice during non refrigeration storage conditions and the distribution.  Data were drawn from 34 full factorial experiments conducted in three replicates with the order of the replicates randomized. A multivariate regression analysis was used for relating the variables. The results of the experiment and the model developed for yellow...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Development; Model; Shelf Life; Yellow Cashew Fruit Juice; Refrigerated Storage.
Ano: 2022
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6325

Design, development and evaluation of a rotary potato sorting machine
Provedor de dados: 111
Autores: Bakhtiari, Mohammad Reza.
Potato is one of the most important agricultural products that has great nutritional and industrial value. Potato seed tubers are usually used for growing this crop, but separating the seed tubers from the edible ones is tedious, time consuming and costly process. Therefore, a rotating potato sorting machine was designed, developed and evaluated in this research. This machine was able to sort potato tubers according to their size. Effects of sieves slope angle and rotational speed on the tubers mechanical damage, sorting accuracy and capacity of designed machine were evaluated. The test was conducted in the factorial experiment format with three replications based on a completely randomized experimental design. Three levels of sieves slope angle (5, 10 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Design; Development; Edible; Potato; Seed; Sorting.
Ano: 2022
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/7299

Development and Performance Evaluation of Screw-like Fish Meal Pelletizer
Provedor de dados: 111
Autores: Ikubanni, Peter Pelumi; Agboola, Olayinka Oluwole; Ogunsemi, Bamidele Tope.
Aquaculture farming requires good and balanced meal for the fish to stay healthy. Several fish meal pelletizing machines have been designed and developed in Nigeria. This study is to contribute to the improvement of existing design models through designing, fabricating and performing evaluation tests on the machine. The average discharge efficiency, percentage loss due to residue ingredients and production rate for the machine under study after four runs for 5 kg fish meal ingredients weight was processed for 2.5 minutes was 92.25 %, 7.75 % and 110.7 kg/hr, respectively. It was discovered that as the drying days increase, the percentage moisture content removal increases for the two categories of pelletized fish meal weight (4.6 kg and 4.65 kg) considered...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Development; Fish meal; Mechanical engineering; Modeling; Pelletize; Aquaculture; Nigeria.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5371

Situation of livestock insurance in the region of Ghardaia (Algerian Northern Sahara)
Provedor de dados: 111
Autores: BENSAHA, Hocine.
Agricultural insurance is one of the important tools that help farmers gain access to appropriate financial services in support of agricultural production and to face some of the involved risks. The present article presents a detailed evaluation of the functioning system of the agricultural insurance system. Assessing the participation of the Algerian Caisse de Mutualité Agricole, in the current rate of agricultural development. This institution of agricultural mutuality, with its national fund and its regional mutuals, is likely to be affected by several changes or even to be surpassed by other companies competing on the insurance market. An analysis was conducted in insurance companies and farmers to probe the reality on the ground and identify...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural insurance; Participation; Development; Saharan regions; Algeria.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5807

DEVELOPMENT OF A LOW COST AUTOMATIC WATER LEVEL MONITORING SYSTEM
Provedor de dados: 111
Autores: Okoro, Gideon Onyekachi.
Water is a very necessary and important factor in agricultural and farm production and is a key of our quality of life as well. Monitoring water level of a water source, such as dams, water tank or bore-well etc., plays a key role in agricultural management and development. If a water level drops below the threshold level for pumping in a water body, the pump motor may get damaged due to dry running. In such case monitoring water level becomes necessary task. Water engineers and so many other disciplines that study water, rainfall and so many other things related to water resources especially rivers, seas, lakes are faced with the challenge of acquiring quality and accurate data which is one of the motivations of this research. This work aimed at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural and Bioresources Engineering; Land and Water Management Automation; Development; Monitoring-system; Water-level.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5335

Development of a motorized yam slicer
Provedor de dados: 111
Autores: Samuel Enyi Obetta; University of Agriculture, Benue State, Nigeria.; J. C. Ehiem.
A motorized yam-slicing device was designed and developed to improve drying by increasing the surfaces area of yam tubers.  It consists of rotary blades, feeding chutes and electric motor.  The operating power was obtained from 1.5 hp electric motor (1,400 rpm) and, using pulley and belt with complete drive.  The device is manually fed with one tuber at a time.  Performance of the device was evaluated using the following parameters: slicing efficiency, throughput and percentage of non -uniform slices.  The slicing efficiency, throughput and non-uniform slices obtained was 52.3%, 315 kg/h and 47.65% respectively.  Making the chute adjustable to different tuber thickness would eliminate wobbling and further reduce the percentage of non-uniform slices.
Palavras-chave: Yam tuber; Development; Slicing device; Performance evaluation.
Ano: 2011
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/1130

Biotic potential, fertility and life table ofSpodoptera albula (Walker) (Lepidoptera: Noctuidae), under controlled conditions
Provedor de dados: 42
Autores: MONTEZANO,DÉBORA G.; SPECHT,ALEXANDRE; SOSA-GÓMEZ,DANIEL R.; ROQUE-SPECHT,VÂNIA F.; BORTOLIN,TARCISO M.; FRONZA,EDEGAR; PEZZI,PATRÍCIA; LUZ,PRISCILA C.; BARROS,NEIVA M.
This study aimed to evaluate the biotic potential, life table parameters and fertility of Spodoptera albula (Walker, 1857) under controlled conditions (25 ± 1°C, 70 ± 10% RH and 14 hour photo phase). The longevity, pre, post and oviposition periods, fecundity and fertility of 13 couples were evaluated. The longevity of females (13.500 days) was significantly higher than those of males (11.154 days). The mean durations of the pre, post and oviposition periods were 2.615, 1.769 and 9.385 days, respectively. The mean fecundity was 1.417.69 eggs and mean fertility was 1.340.401 larvae, per female. On average, females copulated 1, 231 times. A strong positive correlation was observed between the number of copulations and fecundity (r = 0.847, p &lt;0.001), as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Armyworm; Development; Fecundity; Reproduction; Spermatophore.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000200723

Maturation of Eugenia pyriformis seeds under different hydric and thermal conditions
Provedor de dados: 42
Autores: Lamarca,Edmir V.; Prataviera,Juliana S.; Borges,Igor F.; Delgado,Liliana F.; Teixeira,Carmen C.; Camargo,Marcelo B.P. de; Faria,José M.R.; Barbedo,Claudio J.
This study aims to analyze the maturation and dispersal of Eugenia pyriformis Cambess. seeds produced in different years, and the influence of variation in thermal and hydric environment on seed physical and physiological characteristics at dispersal. Fruits at different developmental stages were harvested in the city of São Paulo between 2003 and 2010, as well as in the cities of Campinas and Lavras, in 2009 and 2010 and analyzed for size and color. The seeds were extracted from the fruits and their dry mass, water content, germination and vigor were assessed. Results showed that seed maturation is unsynchronized to the maturation of the fruit, taking 45 days on average (430 growing degree-days), longer in rainy times or lower temperatures. Seeds with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dispersal; Development; Degree-day; Rainfall; Recalcitrants seeds.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000100223

A simplified table for staging embryos of the pipid frog  Pipa arrabali
Provedor de dados: 42
Autores: ARAÚJO,OLÍVIA G.S.; HADDAD,CÉLIO F.B.; SILVA,HÉLIO R. DA; PUGENER,LOURDES A.
ABSTRACT Pipa is a Neotropical genus of frogs that dwell in freshwater environments. It includes four species that lack free-swimming larvae (P. aspera, P. arrabali, P. pipa, and P. snethlageae) and three with tadpoles (P. carvalhoi, P. myersi, and P. parva). Developmental tables such as the one proposed by Nieuwkoop and Faber might be useful for Pipa species with tadpoles. However, for the other Pipa species, to determine stages by this table or by any of the tables already prepared for frogs without tadpoles (e.g., Crinia nimbus, Eleutherodactylus coqui, and Oreobates barituensis) is impossible. By using embryonic, juvenile, and subadult specimens, we generated a staging table for P. arrabali, from the moment limb buds were first observed until birth,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amphibia; Anura; Development; Morphology; Pipidae.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000501875

The specificity of interactions between proteins and sulfated polysaccharides
Provedor de dados: 42
Autores: Mulloy,Barbara.
Sulfated polysaccharides are capable of binding with proteins at several levels of specificity. As highly acidic macromolecules, they can bind non-specifically to any basic patch on a protein surface at low ionic strength, and such interactions are not likely to be physiologically significant. On the other hand, several systems have been identified in which very specific substructures of sulfated polysaccharides confer high affinity for particular proteins; the best-known example of this is the pentasaccharide in heparin with high affinity for antithrombin, but other examples may be taken from the study of marine invertebrates: the importance of the fine structure of dermatan sulfate (DS) to its interaction with heparin cofactor II (HCII), and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sulfated polysaccharides; Fucans; Dermatan sulfate; Heparan sulfate; Heparin; Protein structure; Growth factors; Development.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652005000400007

Adenosine as a signaling molecule in the retina: biochemical and developmental aspects
Provedor de dados: 42
Autores: PAES-DE-CARVALHO,ROBERTO.
The nucleoside adenosine plays an important role as a neurotransmitter or neuromodulator in the central nervous system, including the retina. In the present paper we review compelling evidence showing that adenosine is a signaling molecule in the developing retina. In the chick retina, adenosine transporters are present since early stages of development before the appearance of adenosine A1 receptors modulating dopamine-dependent adenylate cyclase activity or A2 receptors that directly activate the enzyme. Experiments using retinal cell cultures revealed that adenosine is taken up by specific cell populations that when stimulated by depolarization or neurotransmitters such as dopamine or glutamate, release the nucleoside through calcium-dependent...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nucleoside; Receptors and transporters; Development; Cell culture; Uptake and release.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000300007

Immature stages of Spodoptera albula (Walker) (Lepidoptera: Noctuidae): Developmental parameters and host plants
Provedor de dados: 42
Autores: MONTEZANO,DÉBORA G.; SPECHT,ALEXANDRE; BORTOLIN,TARCISO M.; FRONZA,EDEGAR; SOSA-GÓMEZ,DANIEL R.; ROQUE-SPECHT,VÂNIA F.; PEZZI,PATRÍCIA; LUZ,PRISCILA C.; BARROS,NEIVA M.
This study aimed to detail the temporal and morphological parameters of the immature stages of Spodoptera albula (Walker 1857) under controlled conditions (25 ± 1°C, 70 ± 10% RH and 14 hour photophase) and to gather information about their larval host plants. For this purpose, a new rearing method and artificial diet was employed and validated. The viability of the egg, larval, pupal and pre-pupal stages was 94.54, 97.33, 93.84 and 92.34%, respectively. The average duration of the egg, larval, pupal and pre-pupal stages was 4.14, 16.37, 1.69, and 9.34 days, respectively. During the larval stage, 80.85% of females and 93.99% of males passed through six and remaining through seven instars, with significant larval protandry. The larvae that developed through...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Annual crop pest; Armyworm; Artificial diet; Development; Life cycle.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000100271

Neurotransmitter regulation of neural development: acetylcholine and nicotinic receptors
Provedor de dados: 42
Autores: TORRÃO,ANDRÉA S.; BRITTO,LUIZ R.G.
Several neurotransmitter systems have been related to developmental processes during the past decade. In this review, we discuss the evidence that the nicotinic acetylcholine receptors could have an additional function during development that may be unrelated to their role in cholinergic neurotransmission in the vertebrate brain. Both temporal expression data and in vitro and in vivo studies with nicotinic agonists and antagonists have provided direct support for a role of nicotinic receptors in neural developmental processes such as neurite outgrowth and differentiation. A similar picture has emerged for other neurotransmitter and receptor systems as well, which generates a new view of neural processes during both development and mature life.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acetylcholine; Development; Neurotransmitters; Nicotine; Nicotinic receptors.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000300008

The central role of RNA in the genetic programming of complex organisms
Provedor de dados: 42
Autores: Mattick,John S.
Notwithstanding lineage-specific variations, the number and type of protein-coding genes remain relatively static across the animal kingdom. By contrast there has been a massive expansion in the extent of genomic non-proteincoding sequences with increasing developmental complexity. These non-coding sequences are, in fact, transcribed in a regulated manner to produce large numbers of large and small non-protein-coding RNAs that control gene expression at many levels including chromatin architecture, post-transcriptional processing and translation. Moreover, many RNAs are edited, especially in the nervous system, which may be the basis of epigenome-environment interactions and the function of the brain.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Development; Noncoding RNA; Epigenome; Gene regulation; RNA editing; Brain.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000400016

Global environmental change research: empowering developing countries
Provedor de dados: 42
Autores: Nobre,Carlos A.; Lahsen,Myanna; Ometto,Jean P.H.B.
This paper discusses ways to reconcile the United Nations Millennium Development Goals with environmental sustainability at the national and international levels. The authors argue that development and better use of sustainability relevant knowledge is key, and that this requires capacity building globally, and especially in the less developed regions of the world. Also essential is stronger integration of high-quality knowledge creation and technology-and policy-development, including, importantly, the creation of centers of excellence in developing regions which effectively use and produce applications-directed high quality research and bring it to bear on decision making and practices related to environmental change and sustainable management of natural...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sustainability; Large-Scale Biosphere-Atmosphere Experiment in Amazonia (LBA); Knowledge; Development; Ecosystem services.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000300012

Anatomy and ontogeny of the pericarp of Pterodon emarginatus Vogel (Fabaceae, Faboideae), with emphasis on secretory ducts
Provedor de dados: 42
Autores: Paiva,Élder A.S.; Oliveira,Denise M.T.; Machado,Silvia R.
Discrepant and incomplete interpretations of fruits of Pterodon have been published, especially on the structural interpretation of the pericarp portion that remain attached to the seed upon dispersal. The present work clarified these doubts and analyzed ultrastructural aspects of the Pterodon emarginatus diaspores using light and transmission electron microscopes. Cell divisions are prevalent among the initial phases of development, and the subadaxial and adaxial meristems form the fibrous inner mesocarp and the endocarp composed of multi-seriate epidermis, respectively. At the median mesocarp, numerous secretory ducts differentiate between the lateral bundles, by lytic process. After lysis of the central cells and the formation of the lumen, the ducts...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pterodon emarginatus; Development; Fruit; Secretory duct; Resin; Ultrastructure.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000300007

Functional role of a glycolipid in directional movements of neurons
Provedor de dados: 42
Autores: MENDEZ-OTERO,ROSALIA; SANTIAGO,MARCELO F.
Migration of neurons from their site of origin to their final destination is a critical and universal step in the formation of the complex structure of the nervous system. The migratory process is thought to be governed in part by genetically and epigenetically defined sequences of signals which are interpreted by migrating cells. The molecular mechanisms that underlie neuronal migration have been the subject of intense investigation. As in other developmental processes, many molecules must participate in neuronal migration. Some molecules, such as cell adhesion molecules and motor proteins, may contribute to discrete steps in the migration act; others, like extracellular signaling molecules, may regulate the activation and/or termination of the migration...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycolipid; Ganglioside; 9-O-acetyl GD3; Neuronal Migration; Neurite outgrowth; Development.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652001000200007

Development and evaluation of a novel subunit vaccine for Mycoplasma gallisepticum
Provedor de dados: 45
Autores: Moura,L.; Dohms,J.; Almeida,J.M.; Ferreira,P.S.; Biffi,C.P.; Backes,R.G.
Adhesion proteins from Mycoplasma gallisepticum (MG) encoded by cytadhesion genes mgc1 and mgc2 were cloned into plasmid vectors and transformed into E. coli. Seventeen groups of specific-pathogen free (SPF), birds at four weeks of age were used to inoculate these two proteins (MGC1 and MGC2) mixed into an oil emulsion creating a novel MG vaccine. Six different protein concentrations (50, 100, 200, 400, 800, and 1000µg/bird) were tested with two equal concentration doses at four and seven weeks of age. In addition, many control groups were needed such as bacterin, membrane, no vaccine or challenge, oil emulsion alone, and no vaccine but challenged. Three weeks following the second vaccination, 50% of the birds in each treatment group were challenged with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Evaluation; Development; Mycoplasmas; Poultry; Vaccine.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000600024

Heme metabolism enzymes are dynamically expressed during Xenopus embryonic development
Provedor de dados: 47
Autores: Shi,Jianli; Mei,Wenyan; Yang,Jing.
As the key component of many hemoproteins (heme-containing proteins), heme is involved in a broad range of biological processes. Enzymes required for heme biosynthesis and degradation pathways are evolutionarily conserved. While heme metabolism has been studied extensively, the expression of heme metabolism enzymes during development has not been described. Here, we report that all heme biosynthases and two heme oxygenases, which initiate heme degradation, are dynamically expressed during Xenopus embryonic development. All heme synthases, with the exception of aminolevulinic acid synthase 2, are maternally expressed. At neurula stage, heme synthases are expressed in the developing neural tissue and in migrating neural crest cells. At the swimming tadpole...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heme synthases; Heme oxygenases; Development; Xenopus.
Ano: 2008
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452008000300007

Goblet cell number in the ileum of rats denervated during suckling and weaning
Provedor de dados: 47
Autores: Hernandes,Luzmarina; Marques da Silva Pereira,Lucieni Cristina; Parisi Alvares,Eliana.
The enteric nervous system plays a role on the stimulation of secretory cells of intestinal epithelia. We have demonstrated that ablation of ENS stimulates epithelial cell proliferation. As goblet cells are important constituents of the epithelial sheet, it is mandatory to investigate separately this cell type. The myenteric plexus of the ileum of rats in postnatal development was partially removed by the serosal application of benzalkonium chloride (BAC). Three groups of animals were used: those where BAC application was at 13 days and sacrifice was at 15 (13/28-day-old) or 23 days after treatment (13/36-day-old), and those where BAC was applied at 21 days and rats were killed 15 days after treatment (21/36-day-old) . The number of goblet cells in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benzalkonium chloride; Development; Goblet cells; Myenteric plexus; Small intestine.
Ano: 2003
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452003000300005

Differentiation and morphogenesis of Triatoma infestans (Klug 1834) female gonads: I - Post embryonic development
Provedor de dados: 47
Autores: Ibañez de Barrett,Cecilia I.; Bozzini,Juan Pablo; Mariano de Bozzini,Marta.
The post-embryonic development of the female gonads in Triatoma infestans (Hemiptera, Heteroptera), insects of importance in health affairs as harbors and vectors of different tripanosomatidea flagellates, is presented in a complete follow-up since insect hatches from the egg up to the last molt in the fifth instar stage. The detailed description of the morphological changes which occur in each instar as well as careful measurements evaluating its size increase have been analyzed by stereomicroscopy, phase contrast, dark field, and oblique illumination, in order to optimize the observations as well the photographic register of gonad morphology and structure. The analysis was performed on gonad specimens obtained from broods no less than twenty (20) nymph...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ovary; Development; Hemiptera; Insect Nymph.
Ano: 2004
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452004000300002

Distribution of delta sleep-inducing peptide in the newborn and infant human hypothalamus: an immunohistochemical study
Provedor de dados: 48
Autores: NAJIMI,MOHAMED; BENNIS,MOHAMED; MOYSES,EMMANUEL; CHIGR,FATIHA.
The distribution of delta sleep-inducing peptide immunoreactive cell bodies, fibers, and terminal-like structures was investigated in the normal human hypothalamus during the first postnatal year, using immunohistofluorescence and peroxidase anti-peroxidase techniques. Immunolabeled perikarya were relatively few and were mostly scattered through the anterior (preoptic) and mediobasal regions (infundibular nucleus) of the hypothalamus. DSIP-immunoreactive fibers and terminal-like fibers were observed throughout the entire rostro-caudal extent of the hypothalamus. They exhibit high densities in the preoptic region, the organum vasculosum of lamina terminalis, infundibular nucleus and median eminence. Moderate to low densities of DSIP-immunoreactive fibers...
Tipo: Journal article
Palavras-chave: DSIP; Immunohistochemistry; Development; Post-mortem; Human brain.
Ano: 2001
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602001000100013

The CK1 gene family: expression patterning in zebrafish development
Provedor de dados: 48
Autores: ALBORNOZ,AMELINA; YÁÑEZ,JOSÉ M; FOERSTER,CLAUDIA; AGUIRRE,CELESTE; PEREIRO,LUISA; BURZIO,VERÓNICA; MORAGA,MAURICIO; REYES,ARIEL E; ANTONELLI,MARCELO.
Protein kinase CK1 is a ser/thr protein kinase family which has been identified in the cytosol cell fraction, associated with membranes as well as in the nucleus. Several isoforms of this gene family have been described in various organisms: CK1á, CK1ß, CK1&amp;#948;, CK1å and CK1&amp;#947;. Over the last decade, several members of this family have been involved in development processes related to wnt and sonic hedgehog signalling pathways. However, there is no detailed temporal information on the CK1 family in embryonic stages, even though orthologous genes have been described in several different vertebrate species. In this study, we describe for the first time the cloning and detailed expression pattern of five CK1 zebrafish genes. Sequence analysis...
Tipo: Journal article
Palavras-chave: CK1; Casein Kinase 1; Expression pattern; Development; Zebrafish; Otic vesicles; Retina; Lens; Pectoral fin bud; Tegmentum; Myelencephalon; Telencephalon; Diencephalon; Mesencephalon; Rhombomeres.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602007000200015

Seed germination and seedling morphology of Smilax polyantha (Smilacaceae)
Provedor de dados: 49
Autores: Martins,Aline Redondo; Pütz,Norbert; Novembre,Ana Dionisia da Luz Coelho; Piedade,Sônia Maria de Stefano; Glória,Beatriz Appezzato da.
Brazilians have been using the underground organs of Smilax species in alternative medicine since the 19th century because of their anti-rheumatic qualities. However, even nowadays, these species are explored only by extractivism. Studies on seed germination and development of these organs could be useful to preserve these plants. After germination, seedling development of Smilax polyantha was analyzed to understand underground stem formation. Furthermore, to analyze the ontogenesis of the underground system, seedlings aged from one to twelve months were sectioned. One of the most striking features of this species is the presence of two stem branching systems. The plumule gives rise to the first stem branching system with negative geotropism. Its first...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anatomy; Development; Greenbrier; Rhizome; Rhizophores.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032011000200003

Aspects of the biology and morphology of Dirphia dolosa Bouvier, 1929 (Lepidoptera: Saturniidae: Hemileucinae)
Provedor de dados: 49
Autores: Specht,Alexandre; Fronza,Edegar; Colombi,Evandro Emanoel; Formentini,Aline Carraro; Corseuil,Elio.
Dirphia dolosa Bouvier, 1929 is an endemic moth from southern Brazil, with available information restricted to occurrence data, natural host plant and adult morphology. This study describes bionomic peculiarities of this species, obtained from observations of larval aggregations in the field and in the laboratory. Data on all developmental stages are presented and compared with those of other Hemileucinae. D. dolosa present a facultative pupal diapause and may have two generations per year under the climatic conditions of the Rio Grande do Sul State, Brazil.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic Forest; Biodiversity conservation; Development; Myrsinaceae.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000400001

Developmental Toxicity of (4S)-2- (4-hydroxy-3-methoxyphenyl) thiazolidine-4-carboxylic acid in Zebrafish ( Danio rerio )
Provedor de dados: 52
Autores: Akbulut,Cansu; Öztürk,Burcu; Genc,Hayriye; Zengin,Mustafa; Yön,Nazan Deniz.
ABSTRACT (4S)-2-(4-hydroxy-3-methoxyphenyl)thiazolidine-4-carboxylic acid is new synthesized substance obtained from cysteine and valine. Thiazolidine derivates have important biological responses so scientists work intensively on these compounds in recent years. It is obvious that thiazolidine contained compounds will be used in future in the pharmaceutical industry to treat important diseases. Median lethal concentrations (LC50) for 48 h and 96 h were found as 1.106±0.052 mM and 0.804mM ± 0.102 respectively. According to LC50, exposure doses were determined as control, 0.4 mM, 0.2 mM and 0.1 mM (4S)-2-(4-hydroxy-3-methoxyphenyl)thiazolidine-4-carboxylic acid. Developmental toxicity and apoptotic features on zebrafish development were evaluated in this...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Thiazolidine; Toxicity; Development; Zebrafish; Apoptosis.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100431

Research on the space environment characteristic and the development of the traditional village in China: Taking Pengzhuang in the northern Jiangsu province as an example
Provedor de dados: 52
Autores: Yao,Peng.
ABSTRACT Traditional villages in the northern Jiangsu province have a local character and history unique artistic style, traditional culture and art Jiangsu indispensable part. How to make achieving sustainable and harmonious for development in rural areas, it is a major problem currently in these places. In this paper, field research and theoretical analysis a multidisciplinary approach, the traditional villages of northern Jiangsu space environment features, including location and spatial pattern are elaborated, analyzed the current conditions of rural development. Then taking Pengzhuang Village in the northern Jiangsu as example, discuss the current situation as well as its architectural characteristics of the space environment group and architectural...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Traditional villages; Space environment; Characteristic; Ecological; Development.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000200202

Thermic Variation in Incubation and Development of Pantanal Caiman (Caiman crocodilus yacare) (Daudin, 1802) Kept in Metabolic Box
Provedor de dados: 52
Autores: Miranda,Maristela Parra; Moraes,Gentil Vanini de; Martins,Elias Nunes; Maia,Luis Carlos Pinto; Barbosa,Orlando Rus.
Thirty-two eggs of Pantanal caiman (Caiman crocodilus yacare) (Daudin, 1802) were incubated at 30° C. After 20 days of incubation at 30° C, the remaining eggs were distributed in the following way: seven at 34° C, seven at 32° C, six at 30° C and six at 28° C. At 32° C and 34° C a 100% hatchability was obtained while at 30° C 83.3% and at 28° C 66.6%. After hatching, the animals were kept for 120 days at the same temperature of their final incubation. Weight (g) control and morphometric (cm) analysis were carried out. The statistic design was totally randomized and the data were treated by regression analysis showing a quadratic behavior ( p&lt;0.05). It was found that weight, total length (TTL), tail length (TL), snout- vent length (SVL), head length...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caiman; Development; Incubation; Temperature; Thermic variation.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000300012

Influence of tetracycline in the hepatic and renal development of rat's offspring
Provedor de dados: 52
Autores: Machado,Ana Lourdes da Silva; Brandão,Adriana Aigotti Haberbeck; Silva,Cláudia Maria de Oliveira Monteiro da; Rocha,Rosilene Fernandes da.
This study aimed on evaluating the possible effects of tetracycline administered to rats on the tenth day of pregnancy, on kidney and liver development of their offspring. The liver showed vacuolization, necrosis, inflammation and sinusoidal dilatations, more evident in the newborn. Mitosis, early increase of Kupffer cells population and hipertrophy of hepatocytes with greater synthesis of glycogen were present on the tenth and twentieth days of life. The kidney showed slight tubular vacuolizations and necrosis, more proeminent in the newborn, as well as signs of tubular regeneration on the tenth and twentieth days. These results suggested that the organs studied went through several transitory morphological changes during development but presented signs...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pregnancy; Development; Tetracycline; Hepatotoxicity; Nephrotoxicity.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000100008

Application of plant growth regulators at pre-harvest for fruit development of 'PÊRA' oranges
Provedor de dados: 52
Autores: Almeida,Isolina Maria Leite de; Rodrigues,João Domingos; Ono,Elizabeth Orika.
The aim of the present work was to evaluate the effects of auxins and gibberellins when applied at pre-harvest to the fruit development, and to the ripening and natural fall of the fruit, in 'Pêra' oranges. Trees of Citrus sinensis Osbeck cv. Pêra, 5 years old, were utilized. The treatments applied were: GA3 + 2,4-D 12.5mg L-1 of each; GA3 + 2,4-D 25mg L-1 ; GA3 + 2,4-D 37.5mg L-1; GA3 + NAA 12.5mg L-1; GA3 + NAA 25mg L-1; GA3 + NAA 37.5mg L-1; NAA + 2,4-D 12.5mg L-1; NAA + 2,4-D 25mg L-1; NAA + 2,4-D 37.5mg L-1; and water (control). The treatments were applied 3 times, at intervals of 45 days. The variables evaluated were: rate of natural fall (%), fruit length and diameter (mm), and fresh fruit weight (g). None of the treatments promoved alterations in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Auxins; Gibberellins; Fruit drop; Development.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000400003

Rearing Chrysomya megacephala on artificial diets composed of varying concentrations of albumin
Provedor de dados: 52
Autores: Mendonça,Paloma Martins; Queiroz,Margareth Maria de Carvalho; d'Almeida,José Mario.
Larvae of the blowfly Chrysomya megacephala were reared on an artificial diet composed of five different concentrations of albumin (2, 4, 6, 8 and 10%) and the control group was fed on putrid bovine meat. No larvae developed in the 2 and 10% albumin concentrations. The period from newly hatched larvae to adults reared on 4, 6 and 8% albumin was 13.1, 13.1 and 13.6 days, respectively, whereas for the control group, it was 11.2 days. Concentrations of 4, 6 and 8% albumin proved viabile for larval periods of 29.3, 44.0 and 57.3%, respectively, whereas for the control group, it was 77.3%. Pupal viability was 77.3, 36.4 and 83.7%, while for the control group, it was 84.5%; the newly hatched larvae to adult viability was 21.3, 16.0 and 48.0%, respectively, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blowfly; Calliphoridae; Development; Diptera; Protein.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000200020

Influence of the presence and type of fragrance on the sensory perception of cosmetic formulations
Provedor de dados: 52
Autores: Gonçalves,Gisele Mara Silva; Srebernich,Silvana Mariana; Vercelino,Bartira Guiçardi; Zampieri,Bruna Melli.
The aim of the present study was to evaluate the sensory assessments of identical cosmetic formulations with and without fragrance to investigate not only the acceptance but also how different fragrances affected their attributes, such as skin feel, tackiness and spreadability. Three gel and three cream formulations with and without two types of fragrance, fennel and sweet flowers, were assessed for various attributes. The presence and type of fragrance used affected the testers' perception of some attributes, showing that the influence of this component should not be disregarded. Apparently, a consumer's reaction to a cosmetic product is not only based on its efficacy but also on how its attributes are perceived, such as appearance, skin feel and smell.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cosmetics; Development; Fragrance; Olfactory memory; Sensory.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000200005

Ovary maturatıon stages and histological investigation of ovary of the Zebrafish (Danio rerio)
Provedor de dados: 52
Autores: Koç (Yön),Nazan Deniz; Aytekin,Yener; Yüce,Rikap.
Microscopic ovary features of Zebrafish were analyzed. Samples were fixed in Bouin’s solution, mounted in parafin and cut into 6-7 µm-thick slices which were stained with Hematoxylin and Eosin (HE), methylene blue and using Periodic-acid Schiff method (PAS). The thin sections in ultramicrotome with the thickness of approximately 0,5 - 0,7 µm were examined by using Jeol electron microscope following contrasting with Uranyl Acetate-Lead Citrate. The zebrafish was an extremely dynamic organ in which follicles underwent asynchronous development. The oocytes of Zebrafish ovary were observed in various phases. The oocyte development of zebrafish was divided into four stages (primary growth, cortical alveolus, vitellogenic and mature oocyte). Oocyte diameters...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zebrafish; Gonad; Oocyte; Development.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000300010

Egg Development of Paralichthys orbignyanus (Valenciennes, 1839)
Provedor de dados: 52
Autores: Cerqueira,Vinicius Ronzani.
Eggs of the Southern Brazilian flounder Paralichthys orbignyanus were obtained through spawning induction and reared in laboratory. The eggs released were free-floating or pelagic. Other important characteristics were: spherical shape, smooth chorion, narrow perivitelline space, and a single oil globule. Egg and oil globule diameter were about 0.792 ± 0.008 mm and 0.114 ± 0.003 mm, respectively. The blastodisc was observed approximately 1 h after fertilization and followed by blastodisc cleavage. Blastula stage started after about 5 h and gastrula stage after 9 h. Approximately 20 h after fertilization, blastopore closure was observed. Neurula or early embryo occurred after 24 h. Cardiac beats and movements of the free embryonic tail were recorded after 40...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flounder; Paralichthys orbignyanus; Egg; Embryo; Development.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000300016

Cowpea Vicilins: Fractionation of Urea Denatured Sub-Units and Effects on Callosobruchus maculatus F. (Coleoptera: Bruchidae) Development
Provedor de dados: 52
Autores: Mota,Antônio Chagas; Fernandes,Kátia Valevski Sales; Sales,Maurício Pereira; Flores,Victor Martin Quintana; Xavier-Filho,José.
Vicilins (7S storage globulins) isolated from cowpea (Vigna unguiculata L.) seeds which were susceptible (S) and resistant (R) to the cowpea weevil (Callosobruchus maculatus F., Coleoptera: Bruchidae) were denatured by urea and fractionated by ion-exchange chromatography. Isolated fractions were incorporated in artificial seeds for assessment of their toxicity to C. maculatus. The most acidic fractions of both susceptible (CE-31 cultivar) and resistant (IT81D-1045 line) seeds were shown to affect development and survival of the bruchid. Results indicated that vicilin polypeptides of toxic nature were expressed in both types of storage globulins although at different levels.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vicilins; 7S storage globulins; Urea denaturation; Cowpea; Vigna unguiculata; Callosobruchus maculatus; Development.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000100001

Differential expression of AMPA-type glutamate receptor subunits during development of the chick optic tectum
Provedor de dados: 56
Autores: Batista,S.S.; Pires,R.S.; Britto,L.R.G.
Glutamate receptors have been often associated with developmental processes. We used immunohistochemical techniques to evaluate the expression of the AMPA-type glutamate receptor (GluR) subunits in the chick optic tectum (TeO). Chick embryos from the 5th through the 20th embryonic day (E5-E20) and one-day-old (P1) chicks were used. The three types of immunoreactivity evaluated (GluR1, GluR2/3, and GluR4) had different temporal and spatial expression patterns in the several layers of the TeO. The GluR1 subunit first appeared as moderate staining on E7 and then increased on E9. The mature GluR1 pattern included intense staining only in layer 5 of the TeO. The GluR2/3 subunits presented low expression on E5, which became intense on E7. The staining for...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: AMPA; Development; Glutamate receptors; Neurotransmitters; Receptor subunits; Visual system.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000800015

Low-protein diet does not alter reproductive, biochemical, and hematological parameters in pregnant Wistar rats
Provedor de dados: 56
Autores: Barros,M.A.V.; Andrade,E.B.; Barros,R.G.N.; Costa,I.K.M.; Costa,I.C.L.; Vitorino,G.F.A.; Andrade,J.J.C.; Paulino-Silva,K.M.; Nogueira,V.O.; de Brito Alves,J.L.; Costa-Silva,J.H.
The aim of this study was to investigate the reproductive, biochemical, and hematological outcomes of pregnant rats exposed to protein restriction. Wistar rat dams were fed a control normal-protein (NP, 17% protein, n=8) or a low-protein (LP, 8% protein, n=14) diet from the 1st to the 20th day of pregnancy. On the 20th day, the clinical signs of toxicity were evaluated. The pregnant rats were then anesthetized and blood samples were collected for biochemical-hematological analyses, and laparotomy was performed to evaluate reproductive parameters. No sign of toxicity, or differences (P&gt;0.05) in body weight gain and biochemical parameters (urea, creatinine, albumin, globulin, and total protein) between NP and LP pregnant dams were observed. Similarly,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Development; Epigenetics; Fertility; Gestation; Intrauterine growth; Nutrition.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000600613

Reduction of intraspecific aggression in adult rats by neonatal treatment with a selective serotonin reuptake inhibitor
Provedor de dados: 56
Autores: Manhães de Castro,R.; Barreto Medeiros,J.M.; Mendes da Silva,C.; Ferreira,L.M.P.; Guedes,R.C.A.; Cabral Filho,J.E.; Costa,J.A.
Most studies suggest that serotonin exerts an inhibitory control on the aggression process. According to experimental evidence, this amine also influences growth and development of the nervous tissue including serotoninergic neurons. Thus, the possibility exists that increased serotonin availability in young animals facilitates a long-lasting effect on aggressive responses. The present study aimed to investigate the aggressive behavior of adult rats (90-120 days) treated from the 1st to the 19th postnatal day with citalopram (CIT), a selective serotonin reuptake inhibitor (20 mg/kg, sc, every 3 days). Aggressive behavior was induced by placing a pair of rats (matched by weight) in a box (20 x 20 x 20 cm), and submitting them to a 20-min session of electric...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Aggression; Serotonin; Neonatal treatment; Development.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000100015

Expression of neuronal nitric oxide synthase in the developing superficial layers of the rat superior colliculus
Provedor de dados: 56
Autores: Giraldi-Guimarães,A.; Bittencourt-Navarrete,R.E.; Mendez-Otero,R.
We investigated the level of expression of neuronal nitric oxide synthase (nNOS) in the retinorecipient layers of the rat superior colliculus during early postnatal development. Male and female Lister rats ranging in age between the day of birth (P0) and the fourth postnatal week were used in the present study. Two biochemical methods were used, i.e., in vitro measurement of NOS specific activity by the conversion of [³H]-arginine to [³H]-citrulline, and analysis of Western blotting immunoreactive bands from superior colliculus homogenates. As revealed by Western blotting, very weak immunoreactive bands were observed as early as P0-2, and their intensity increased progressively at least until P21. The analysis of specific activity of NOS showed similar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Superior colliculus; Nitric oxide synthase; Development; Retinotectal projection.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000600013

Pain and distress outcomes in infants and children: a systematic review
Provedor de dados: 56
Autores: Oliveira,N.C.A.C.; Gaspardo,C.M.; Linhares,M.B.M.
The aim of the present study was to systematically review the recent literature about pain and distress outcomes in children and critically analyze the methodological quality of the reports. The systematic review was based on the PRISMA statement and performed by selecting articles that are indexed in scientific databases. The methodological quality of reports was examined using STROBE statement, for observational studies, and CONSORT statement, for randomized controlled trials. The PedIMMPACT consensus was used to evaluate the psychometric quality of pain instruments. We analyzed 23 empirical studies, including 14 randomized controlled trials, seven cross-sectional studies, and two studies with cohort designs. Fourteen studies included preschool- and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Children; Development; Distress; Pain; Review.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000700302

Control of CD4 gene expression: connecting signals to outcomes in T cell development
Provedor de dados: 56
Autores: Sarafova,S.D.; Siu,G.
The control of CD4 gene expression is essential for proper T lymphocyte development. Signals transmitted from the T-cell antigen receptor (TCR) during the thymic selection processes are believed to be linked to the regulation of CD4 gene expression during specific stages of T cell development. Thus, a study of the factors that control CD4 gene expression may lead to further insight into the molecular mechanisms that drive thymic selection. In this review, we discuss the work conducted to date to identify and characterize the cis-acting transcriptional control elements in the CD4 locus and the DNA-binding factors that mediate their function. From these studies, it is becoming clear that the molecular mechanisms controlling CD4 gene expression are very...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: CD4; Gene expression; Silencer; T cell; Development.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000700001

Extracellular matrix molecules play diverse roles in the growth and guidance of central nervous system axons
Provedor de dados: 56
Autores: Pires-Neto,M.A.; Braga-de-Souza,S.; Lent,R.
Axon growth and guidance represent complex biological processes in which probably intervene diverse sets of molecular cues that allow for the appropriate wiring of the central nervous system (CNS). The extracellular matrix (ECM) represents a major contributor of molecular signals either diffusible or membrane-bound that may regulate different stages of neural development. Some of the brain ECM molecules form tridimensional structures (tunnels and boundaries) that appear during time- and space-regulated events, possibly playing relevant roles in the control of axon elongation and pathfinding. This short review focuses mainly on the recognized roles played by proteoglycans, laminin, fibronectin and tenascin in axonal development during ontogenesis.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Axon guidance; Development; Anterior commissure; Corpus callosum; Brain.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000500017

Veratridine increases the survival of retinal ganglion cells in vitro
Provedor de dados: 56
Autores: Pereira,S.P.F.; Araujo,E.G.
Neuronal cell death is an important phenomenon involving many biochemical pathways. This degenerative event has been studied to understand how the cells activate the mechanisms that lead to self-destruction. Target cells and afferent cells play a relevant role in the regulation of natural cell death. We studied the effect of veratridine (1.5, 3.0, 4.5 and 6.0 µM) on the survival of neonatal rat retinal ganglion cells in vitro. Veratridine (3.0 µM), a well-known depolarizing agent that opens the Na+ channel, promoted a two-fold increase in the survival of retinal ganglion cells kept in culture for 48 h. This effect was dose-dependent and was blocked by 1.0 µM tetrodotoxin (a classical voltage-dependent Na+ channel blocker) and 30.0 µM flunarizine (a Na+ and...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Veratridine; Retinal ganglion cells; Natural cell death; Development; Retina.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997001200014

Postnatal development of rats exposed to fluoxetine or venlafaxine during the third week of pregnancy
Provedor de dados: 56
Autores: da-Silva,V.A.; Altenburg,S.P.; Malheiros,L.R.; Thomaz,T.G.; Lindsey,C.J.
The aim of the present study was to compare the toxic effects of fluoxetine (F) (8 and 16 mg/kg) and venlafaxine (V) (40 and 80 mg/kg) administered during the third week of pregnancy on early development of rats. Both antidepressants were administered by gavage on pregnancy days 15 to 20 to groups of 10 to 12 animals each. Duration of gestation, food and water consumption, number of live pups and birth weight were recorded. Litters were culled to six pups at birth (day 1) and followed for growth until weaning (day 25). On day 60, a male and a female from each litter were injected with the 5-HT1 agonist, 5-methoxy-N,N-dimethyltryptamine (6 mg/kg, ip) and the serotonergic syndrome was graded. Fluoxetine but not venlafaxine reduced the duration of pregnancy...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Development; Fluoxetine; Venlafaxine; Rats.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000100014

The DNA puff BhB10-1 gene is differentially expressed in various tissues of Bradysia hygida late larvae and constitutively transcribed in transgenic Drosophila
Provedor de dados: 56
Autores: Monesi,N.; Sousa,J.F.; Paçó-Larson,M.L.
We extended the characterization of the DNA puff BhB10-1 gene of Bradysia hygida by showing that, although its mRNA is detected only at the end of the fourth larval instar, BhB10-1 expression is not restricted to the salivary gland, the tissue in which this gene is amplified. Different amounts of BhB10-1 mRNA were detected in other larval tissues such as gut, Malpighian tubules, fat body, brain and cuticle, suggesting that this gene is expressed differentially in the various tissues analyzed. Analysis of transgenic Drosophila carrying the BhB10-1 transcription unit and flanking sequences revealed that the tested fragment promotes transcription in a constitutive manner. We suggest that either cis-regulatory elements are missing in the transgene or factors...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DNA puff; Gene expression; Development; Ecdysone; Transgenic Drosophila.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000700003

Nuclear exclusion of transcription factors associated with apoptosis in developing nervous tissue
Provedor de dados: 56
Autores: Linden,R.; Chiarini,L.B.
Programmed cell death in the form of apoptosis involves a network of metabolic events and may be triggered by a variety of stimuli in distinct cells. The nervous system contains several neuron and glial cell types, and developmental events are strongly dependent on selective cell interactions. Retinal explants have been used as a model to investigate apoptosis in nervous tissue. This preparation maintains the structural complexity and cell interactions similar to the retina in situ, and contains cells in all stages of development. We review the finding of nuclear exclusion of several transcription factors during apoptosis in retinal cells. The data reviewed in this paper suggest a link between apoptosis and a failure in the nucleo-cytoplasmic partition of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Programmed cell death; Retina; Neurogenesis; Development; Nuclear membrane.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000700003

A connection between extracellular matrix and hormonal signals during the development of the human fetal adrenal gland
Provedor de dados: 56
Autores: Chamoux,E.; Otis,M.; Gallo-Payet,N.
The human adrenal cortex, involved in adaptive responses to stress, body homeostasis and secondary sexual characters, emerges from a tightly regulated development of a zone-specific secretion pattern during fetal life. Its development during fetal life is critical for the well being of pregnancy, the initiation of delivery, and even for an adequate adaptation to extra-uterine life. As early as from the sixth week of pregnancy, the fetal adrenal gland is characterized by a highly proliferative zone at the periphery, a concentric migration accompanied by cell differentiation (cortisol secretion) and apoptosis in the central androgen-secreting fetal zone. After birth, a strong reorganization occurs in the adrenal gland so that it better fulfills the newborn's...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adrenal gland; Development; Human fetus; Extracellular matrix; Angiotensin II; Adrenocorticotropin.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005001000006

Influence of melatonin on the development of functional nicotinic acetylcholine receptors in cultured chick retinal cells
Provedor de dados: 56
Autores: Sampaio,L.F.S.; Hamassaki-Britto,D.E.; Markus,R.P.
The influence of melatonin on the developmental pattern of functional nicotinic acetylcholine receptors was investigated in embryonic 8-day-old chick retinal cells in culture. The functional response to acetylcholine was measured in cultured retina cells by microphysiometry. The maximal functional response to acetylcholine increased 2.7 times between the 4th and 5th day in vitro (DIV4, DIV5), while the Bmax value for [125I]-alpha-bungarotoxin was reduced. Despite the presence of alpha8-like immunoreactivity at DIV4, functional responses mediated by alpha-bungarotoxin-sensitive nicotinic acetylcholine receptors were observed only at DIV5. Mecamylamine (100 µM) was essentially without effect at DIV4 and DIV5, while dihydro-ß-erythroidine (10-100 µM) blocked...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Retina; Development; Nicotinic acetylcholine receptors; Alpha-bungarotoxin; Melatonin; Microphysiometry.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000400015

Functional role of a specific ganglioside in neuronal migration and neurite outgrowth
Provedor de dados: 56
Autores: Mendez-Otero,R.; Santiago,M.F.
Cell migration occurs extensively during mammalian brain development and persists in a few regions in the adult brain. Defective migratory behavior of neurons is thought to be the underlying cause of several congenital disorders. Knowledge of the dynamics and molecular mechanisms of neuronal movement could expand our understanding of the normal development of the nervous system as well as help decipher the pathogenesis of neurological developmental disorders. In our studies we have identified and characterized a specific ganglioside (9-O-acetyl GD3) localized to the membrane of neurons and glial cells that is expressed in regions of cell migration and neurite outgrowth in the developing and adult rat nervous system. In the present article we review our...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neuronal migration; Gangliosides; Development; 9-O-acetyl GD3; Neurite outgrowth.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000800006

Developmental norms for the Gardner Steadiness Test and the Purdue Pegboard: a study with children of a metropolitan school in Brazil
Provedor de dados: 56
Autores: Brito,G.N.O.; Santos-Morales,T.R.
Norms for the Gardner Steadiness Test and the Purdue Pegboard were developed for the neuropsychological assessment of children in the metropolitan area of Rio de Janeiro. A computer-generated unbiased sample of 346 children with a mean age of 9.4 years (SD = 2.76), who were attending a large normal public school in this urban area, was the subject of this study. Two boys were removed from the study, one for refusing to participate and the other due to severe strabismus. Therefore, the final sample contained 344 children (173 boys and 171 girls). Sex and age of the child and hand preferred for writing, but not ethnic membership or social class, had significant effects on performance in the Gardner Steadiness Test and the Purdue Pegboard. Girls outperformed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neuropsychology; Assessment instruments; Norms; Development; Cross-cultural differences; Manual differences; Sex differences; Brazil; Metropolitan children.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000800011

Developmental norms for eight instruments used in the neuropsychological assessment of children: studies in Brazil
Provedor de dados: 56
Autores: Brito,G.N.O.; Alfradique,G.M.N.; Pereira,C.C.S.; Porto,C.M.B.; Santos,T.R.
Norms for a battery of instruments, including Denckla's and Garfield's tests of Motor Persistence, Benton's Right-Left Discrimination, two recall modalities (Immediate and Delayed) of the Bender Test, Wechsler's Digit Span, the Color Span Test and the Human Figure Drawing Test, were developed for the neuropsychological assessment of children in the greater Rio de Janeiro area. Additionally, the behavior of each child was assessed with the Composite Teacher Rating Scale (Brito GNO and Pinto RCA (1991) Journal of Clinical and Experimental Neuropsychology, 13: 417-418). A total of 398 children (199 boys and 199 girls balanced for age) with a mean age of 9.3 years (SD = 2.8), who were attending a public school in Niterói, were the subjects of this study....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neuropsychology; Assessment instruments; Norms; Development; Cross-cultural/differences; Brazil.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000300012

Visual maps in the adult primate cerebral cortex: some implications for brain development and evolution
Provedor de dados: 56
Autores: Rosa,M.G.P.
In this paper, the topology of cortical visuotopic maps in adult primates is reviewed, with emphasis on recent studies. The observed visuotopic organisation can be summarised with reference to two basic rules. First, adjacent radial columns in the cortex represent partially overlapping regions of the visual field, irrespective of whether these columns are part of the same or different cortical areas. This primary rule is seldom, if ever, violated. Second, adjacent regions of the visual field tend to be represented in adjacent radial columns of a same area. This rule is not as rigid as the first, as many cortical areas form discontinuous, second-order representations of the visual field. A developmental model based on these physiological observations, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Primate; Vision; Receptive fields; Cortical areas; Development; Specification.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002001200008

Conditioned medium from activated spleen cells supports the survival of rat retinal cells in vitro
Provedor de dados: 56
Autores: Sholl-Franco,A.; Araujo,E.G.
Cytokines are a heterogeneous group of molecules that have been associated with several functions in the nervous system, such as survival and differentiation of neuronal and glial cells. In the present study, we demonstrated that conditioned medium from spleen cells activated with concanavalin A increased neuritogenesis and survival of retinal cells, as measured by biochemical and morphological criteria. Our data showed that conditioned medium induced a five-fold increase in the amount of protein after 120 h in vitro. This effect was not inhibited by the blockade of voltage-dependent L-type calcium channels with 5.0 µM nifedipine. However, the use of an intracellular calcium chelator (15.0 µM BAPTA-AM) inhibited this effect. Our results support the idea...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytokines; Growth factor; Neuroimmunology; Retina; Development.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997001100006

Physiology of cashew plants grown under adverse conditions
Provedor de dados: 61
Autores: Bezerra,Marlos A.; Lacerda,Claudivan F. de; Gomes Filho,Enéas; Abreu,Carlos E. B. de; Prisco,José T.
The cashew (Anacardium occidentale L.) is an important crop for semi-arid agriculture and contributes to the social and economical development of several world regions, including the northeast of Brazil. In spite of its importance, very few studies aim to understand the effects of abiotic stresses on the development and yield of the cashew. This review covers the research on cashew ecophysiology, with emphasis on the effects of water and salt stress on its development, mineral nutrition and gas exchange processes. The results presented here were obtained at different plant growth stages and under different environmental conditions of soil and climate. The ecophysiological significance of this information is also discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anacardium occidentale; Development; Salt stress; Water deficit.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000400012

Effect of rainfall regimes on seed production and quality of Avena barbata
Provedor de dados: 118
Autores: Olivares,Alfredo; Johnston,Myrna; Calderón,Carolina.
The effects of rainfall amount and distribution on seed yield and quality in Avena barbata were evaluated in a greenhouse under controlled conditions with simulated rainfall regimes. A randomized complete-block design was used with five replications of one pot each. Seven treatments were established according to rainfall regimes for a real year in the semiarid zone in the Metropolitan Región, Chile: normal rainfall (1982), late rainfall (1987), normal-early rainfall (1962), normal-late rainfall (1989), dry-early rainfall (1981) and dry-late rainfall (1990). One treatment without water stress was left for comparison. One-year-old seeds were planted in pots with disinfected soil. The five most uniform plants in terms of size and health were chosen for the...
Tipo: Journal article
Palavras-chave: Avena; Development; Growth; Seeds; Water stress.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202009000100006

The role of biotechnology in agricultural production and food supply
Provedor de dados: 118
Autores: Cano Estrada,Araceli; Vélez Díaz,Daniel; Morgado Hernández,Carlos Alberto.
Over the past several decades, technological developments and modernization have grown concomitantly.For example, advances in biotechnology have been used as a tool to increase food production. Specifically, advances in genetic engineering have made possible the manipulation of crops to increase yield, guaranteeing food supplies for the increasing world population. However, transgenic crops have not been well received by all members of society, and there is still uncertainty about their social benefits and the possible implications to human health. Additionally, the benefits of agricultural modernization have favored only developed countries, whereas people living in developing and underdeveloped countries suffer rampant hunger, malnutrition and poverty....
Tipo: Journal article
Palavras-chave: Agriculture; Development; Food industry; Nutrition; Organic food; Transgenic food.
Ano: 2017
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202017000100001

Aging gene pathway of microRNAs 156/157 and 172 is altered in juvenile and adult plants from in vitro propagated Prunus sp.
Provedor de dados: 118
Autores: Bastías,Adriana; Almada,Rubén; Rojas,Pamela; Donoso,José Manuel; Hinrichsen,Patricio; Sagredo,Boris.
A. Bastías, R. Almada, P. Rojas, J.M. Donoso, P. Hinrichsen, and B. Sagredo. 2016. Aging gene pathway of microRNAs 156/157 and 172 is altered in juvenile and adult plants from in vitro propagated Prunus sp. Cien. Inv. Agr. 43(3):429-441. In vitro culture is a very popular technique to mass propagate valuable plant genotypes, including Prunus sp. cultivars. Plants that undergo tissue culture processes often change their morphology and behavior due to the "rejuvenation" caused by the plant growth regulators included in the medium. To evaluate the effects of rejuvenation by tissue culture in Prunus sp., the expression patterns of the aging gene pathway described in plant models, which include the highly conserved microRNA (miRNA or miR) 156/157 and 172...
Tipo: Journal article
Palavras-chave: Development; In vitro culture; Hase change; Rejuvenation.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000300009

A generalized nonlinear tempeature response function for some growth and developmental parameters in kiwifruit (Actinidia deliciosa (A. Chev.) C. F. Liang &amp;amp; A. R. Ferguson)
Provedor de dados: 65
Autores: Streck,Nereu Augusto.
Temperature is a major factor that affects metabolic processes in living organisms. Thermal time has been widely used to account for the effects of temperature on crop growth and development. However, the thermal time approach has been criticized because it assumes a linear relationship between the rate of crop growth or development and temperature. The response of the rate of crop growth and development to temperature is nonlinear. The objective of this study was to develop a generalized nonlinear temperature response function for some growth and developmental parameters in kiwifruit (Actinidia deliciosa (A. Chev.) C. F. Liang &amp;amp; A. R. Ferguson). The nonlinear function has three coefficients (the cardinal temperatures), which were 0ºC, 25ºC, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Temperature; Model; Growth; Development; Kiwifruit.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782003000200012

Cardinal temperatures for planting-emergence phase in gladiolus
Provedor de dados: 65
Autores: Muttoni,Martina; Alberto,Cleber Maus; Bartz,Alex Cristiano; Uhlman,Lilian Osmari; Tartaglia,Vanderley de Lima; Streck,Nereu Augusto.
ABSTRACT: The objective of this study was to determine the cardinal temperatures for the planting-emergence phase of gladiolus. A controlled environment experiment was performed in a growth chamber in the Universidade Federal do Pampa - Campus Itaqui, using the completely randomized experimental design with 12 temperature treatments (5°C, 7°C, 10°C, 13°C, 16°C, 18°C, 20°C, 22°C, 25°C, 30°C, 33°C, 35°C) and ten replicates. Corms of the cultivar ‘Amsterdam’ were planted at a depth of 10cm in 1.7dm3 pots. Every day the date of emergence of the gladiolus plants was observed. Then for each treatment, the emergence rate was calculated as the inverse of the duration of the budding phase, and estimated data were achieved employing the non-linear model of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gladiolus x grandiflorus Hort.; Lower base temperature; Upper base temperature; Optimum temperature; Development.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001000201