Consulta: subjectFacets:"Methods"
Registros recuperados: 57
Data/hora: 06/06/2024 04:30:01

Diseño de un sistema de riego a través del programa WCADI y comparación de resultados con el diseño manual del mismo.
Provedor de dados: 32
Autores: Yescas Diego, Salvador.
A nivel mundial, la utilización eficiente del agua en la producción agrícola sólo se puede lograr cuando se planifica el proyecto de riego, con un diseño que permita  opera el recurso, con el fin de atender en cantidad y tiempo, las necesidades de agua de un cultivo, para  un crecimiento óptimo y altos rendimientos. Lo que implica realizar un adecuado diseño del sistema de riego, donde en la actualidad existen varios software para el diseño de sistemas de riego, todos ellos siendo de gran aceptación por su versatilidad y facilidad de manejo y el poco tiempo que se emplea para realizar los diseños. Sin embargo todos y cada uno de ellos tienen su sustento en los procedimientos y métodos de cálculo manual que se han desarrollado a lo largo de la historia. El...
Palavras-chave: Software; Eficiente; Métodos; Herramienta; Efficient; Research; Methods; Tools; Hidrociencias; Maestría.
Ano: 2013
URL: http://hdl.handle.net/10521/1893

A guideline to improve qualitative social science publishing in ecology and conservation journals
Provedor de dados: 7
Autores: Moon, Katie; Institute for Applied Ecology, University of Canberra; School of Business, University of New South Wales; katieamoon@gmail.com; Brewer, Tom D.; Northern Institute, Charles Darwin University, Darwin, Northern Territory, Australia; Australian Institute of Marine Science, Arafura Timor Research Facility, Brinkin, Northern Territory, Australia; tomdbrewer@gmail.com; Adams, Vanessa M.; University of Queensland, School of Biological Sciences, Brisbane, Queensland, Australia; v.adams@uq.edu.au; Blackman, Deborah A.; School of Business, University of New South Wales; d.blackman@adfa.edu.au.
A rise in qualitative social science manuscripts published in ecology and conservation journals speaks to the growing awareness of the importance of the human dimension in maintaining and improving Earth&amp;#8217;s ecosystems. Given the rise in the quantity of qualitative social science research published in ecology and conservation journals, it is worthwhile quantifying the extent to which this research is meeting established criteria for research design, conduct, and interpretation. Through a comprehensive review of this literature, we aimed to gather and assess data on the nature and extent of information presented on research design published qualitative research articles, which could be used to judge research quality. Our review was based on 146...
Tipo: Peer-Reviewed Insight
Palavras-chave: Case study; Confirmability; Credibility; Dependability; Methods; Transferability.
Ano: 2016

Control of ammonia emissions in naturally ventilated dairy cattle facilities in Portugal
Provedor de dados: 70
Autores: Pereira,José; Trindade,Henrique.
We conducted a study of the processes associated to NH3 emission in naturally ventilated dairy cattle facilities, having described factors that regulate NH3 emission, as well as methodologies for measuring these emissions at these facilities. Appropriate techniques to mitigate NH3 emission in facilities located in regions with warm climates were also identified. The most effective mitigation techniques with simple implementation include strategies associated to: (i) installation design and flooring, which lead to reduced emissions, (ii) excreta pre-excretion, namely the use of diets with optimized crude protein content and increased milk production at farm level; and (iii) excreta post-excretion, particularly by changing the conditions of environmental...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Facilities; Gases; Methods; Floors; Mitigation techniques.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000300022

COMPARISON OF METHODS FOR ESTIMATING REFERENCE EVAPOTRANSPIRATION: AN APPROACH TO THE MANAGEMENT OF WATER RESOURCES WITHIN AN EXPERIMENTAL BASIN IN THE BRAZILIAN CERRADO
Provedor de dados: 70
Autores: Gotardo,Jackeline T.; Rodrigues,Lineu N.; Gomes,Benedito M.
ABSTRACT This study aimed to compare methods for estimating reference evapotranspiration using an experimental basin in the Brazilian Cerrado, for water management purposes. For that, we estimated daily reference evapotranspiration over a certain period (time series between 1982 and 2012) through different empirical methods. These methods consisted of Blaney-Criddle (BC), Hargreaves &amp; Samani (HS), ASCE Penman-Monteith (ASCE- PM), Penman (1948/1963) (PO), Priestley-Taylor (PT), which were all compared to the standard Penman-Monteith FAO-56 (PM-FAO56). Based on statistics, ASCE- PM, P and BC methods should be recommended for cerrado areas, either in rainy or dry seasons. After these, the PT also stood out. Among the less complex methods, based on...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Evapotranspiration; Methods; Penman-Monteith FAO-56.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000601016

Cruzamento em gado de corte.
Provedor de dados: 14
Autores: EUCLIDES FILHO, K.
Escolha do sistema de cruzamento; Base genética da heterose e calculo da heterozigose; Características gerais das raças bovinas de corte; Sistemas de cruzamento; Vantagens e desvantagens dos diferentes tipos de cruzamentos; Cruzamentos versus seleção; Ambiente e melhoramento genético de bovinos de corte; Demanda/ambiente versus escolha do sistema de cruzamento; Alguns resultados de pesquisa em cruzamento de Bos taurus com Bos indicus no Brasil.
Tipo: Col Criar Plantar ABC 500P/500R Saber (INFOTECA-E)
Palavras-chave: Sistema; Methods; Melhoramento genético.; Gado de corte; Cruzamento animal; Seleção; Vigor hibrido; Genética.; Beef cattle; Breeding.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/100653

Dessalinização por osmose inversa: um estudo de caso em Petrolina-PE.
Provedor de dados: 14
Autores: AMORIM, M. C. C. de; PORTO, E. R.; SILVA JUNIOR, L. G. de A.; LIBERAL, G. da S.
Dessalinização por osmose inversa; Caracterização dos recursos hidricos subterrâneos; Qualidade da água; Aspectos avaliados nos casos de Petrolina.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Osmose inversa; Brasil; Pernambuco; Petrolina; Desalting; Methods; Inverse osmosis; Natural resource.; Água; Solo; Recurso natural; Dessalinização; Método.; Brazil; Water.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/134155

Teste de ajuste: proposta metodológica para validação de tecnologias com agricultor no semi-arido.
Provedor de dados: 14
Autores: GUIMARAES FILHO, C.; TONNEAU, J. F.
Critérios gerais a serem considerados na avaliação do potencial de aceitabilidade de uma tecnologia; Conceituação de testes de ajuste; Análise dos testes de ajuste; Resumo das ações sequenciais necessárias à implantação e avaliação de teste de ajuste.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Avaliacao; Regiao semi-arida; Familiar farms; Small farmers; Methods; Evaluation; Semi-arid region; Desenvolvimento rural; Agricultura Familiar; Método; Pequeno Produtor; Tecnologia; Rural development; Technology.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/134113

Efeitos fixos ou aleatórios de repetições no contexto dos modelos mistos no melhoramento de plantas perenes.
Provedor de dados: 14
Autores: RESENDE, M. D. V. de.
A estimação de componentes de variância e a predição de valores genéticos no contexto do melhoramento de plantas perenes, demanda o uso da metodologia de mode los mistos (REML/BLUP) ao nível individual, a qual vem sendo aplicada com eficiência ao melhoramento de várias espécies perenes. Uma questão fundamental na aplicação dessa metodologia refere-se à definição dos efeitos do modelo estatístico como fixos ou aleatórios. No caso do efeito de repetições experimentais esta definiçâo nem sempre é trivial. Assim, esta questão é abordada no presente artigo.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Planta perene; Metodologia; Methods; Melhoramento genético.; Genética.; Breeding methods; Perennials; Plant breeding.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/306535

Programa de analise economica atraves de orcamentacao parcial (ANECOR).
Provedor de dados: 14
Autores: SCOLARI, D. D. G.; SOUSA, M. C. de; COSTA, M. E. F. da.
bitstream/item/101044/1/doc-13.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Metodologia; Programa; Production; Budgets; Analysis; Economic; Methods; Programação; Software.; Análise Econômica; Agricultura; Custo; Orçamento; Produção; Produção Agrícola.; Agriculture; Economic analysis; Methodology.
Ano: 1985
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549454

Prioridades e metodologias de pesquisa em varzeas na area de fertilidade do solo.
Provedor de dados: 14
Autores: MIRANDA, L. N. de.
bitstream/item/101122/1/doc-33.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Metodologia; Micronutriente; Methods; Potash fertilizers; Phosphate fertilizers.; Adubação; Calcário; Calagem; Cerrado; Enxofre; Fertilidade do Solo; Fertilizante Nitrogenado; Fertilizante Potássico; Fertilizante Fosfatado; Pesquisa; Química do Solo.; Fertilizer application; Liming; Limestone; Nitrogen fertilizers; Research; Soil chemistry; Trace elements.; Soil fertility.
Ano: 1990
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/547926

Técnicas para interpretar a demanda da agricultura familiar: a história de vida.
Provedor de dados: 14
Autores: SPERRY, S.
ABSTRACT: The author show the heuristic value of life history as an aid to comprehending the various levels of interconnection between the social and the individual, and between historical change of the agricultural communities and the life cicle. This perspective leads to enphasis beind placed on the concepts of family life-cicle of the small farmers. The study presents, on a most possible way, the steps for its application, fallowed by application administration experiences.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Produtor rural; Entrevista; Diagnóstico qualitativo; Methods; Interview; Qualitative diagnosis.; Agricultura Familiar; Método de Pesquisa; Pequeno Produtor; Sociologia Rural.; Family farms; Farmers; Research; Small farms.; Rural sociology.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567352

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

Experimentação e validação de tecnologias em meio real: alguns elementos a partir da experiência de Massaroca (Juazeiro,BA).
Provedor de dados: 14
Autores: TONNEAU, J. P.; SABOURIN, E.
Princípios e enfoques; Massarroca: métodos de aprendizagem e de apoio à inovação; Os ensinamentos do projeto Massaroca.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Adocao de inovacao; Difusao; Bahia; Massaroca; Familiar farms; Small farmers; Methods; Desenvolvimento rural; Agricultura Familiar; Aprendizagem; Método; Pequeno Produtor; Tecnologia; Rural development; Diffusion; Education; Innovation adoption; Technology.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/134114

Método prático de combate a formiga.
Provedor de dados: 14
Autores: SOUZA, J. R. de.
Tipo: Artigo de periódico
Palavras-chave: Combate; Methods; Control; Formiga; Método.
Ano: 1979
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/593329

Variação do espaçamento entre faixas de colheita na geração de mapas de produtividade.
Provedor de dados: 14
Autores: SHIRATSUCHI, L. S.; MACHADO, A. L. T.
RESUMO: Este trabalho avaliou o efeito do espaçamento entre faixas de colheita na geração de mapas de produtividade da cultura de milho. Avaliou-se a correlação existente entre um mapa confeccionados a partir da colheita da área total ( referencia) e outros 5 mapas, onde foram retiradas 2, 4, 6, 8 e 10 faixas de colheita. O mapa referencia foi confeccionado a partir da interpolação por krigagem sem a retirada de faixas de colheita. foram utilizados dois métodos de interpolação (krigagem e inverso da distancia) com aplicação e sem a aplicação de media circular na faixa (MCF) antes da geração dos mapas. A correlação entre os mapas foi feita utilizando- se os métodos de correlação de Pearson e Sperman rank. Concluiu-se que para a cultura de milho, nessa área...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Interpolação; Management; Methods; Interpolation; Spacing; Productivity; Maize.; Colheita; Espaçamento; Mapa; Manejo; Milho; Método; Produtividade; Zea Mays.; Cartography; Harvesting.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/568038

Principios metodologicos para avaliacao agronomica de fontes de fosforo.
Provedor de dados: 14
Autores: GOEDERT, W. J.; SOUSA, D. M. G. de; REIN, T. A.
bitstream/item/101065/1/doc-22.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Avaliacao; Phosphate fertilizers; Evaluation; Methods; Avaliação agronômica; Fertilização; Fertilization; Fontes; Fontes de fósforo; Metodologia; Nutrientes; Phosphate; Princípios metodológicos; Soil fertilization.; Adubo; Adubação; Fertilizante; Fertilizante Fosfatado; Fósforo; Método de Pesquisa; Solo.; Phosphorus; Methodology; Soil.
Ano: 1986
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549456

Metodos de captacao de agua de chuva in situ e irrigacao.
Provedor de dados: 14
Autores: ANJOS, J. B. dos; BRITO, L. T. de L.; SILVA, M. S. L. da.
Neste trabalho, sao apresentadas as principais tecnicas de captacao de agua de chuva "in situ" mais adequadas as condicoes dos produtores do semi-arido brasileiro. Fatores determinantes na implantacao da captacao de agua de chuva "in situ", metodos de captacao de agua de chuva "in situ": aracao e plantio no plano, sulcamento pre-plantio, sulco barrado; aracao parcial, metodo Guimaraes Duque, agricultura de vazante. Nocoes sobre irrigacao, metodos de irrigacao, manejo de solo agua planta.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Agua de chuva; Captacao in situ; Agricultural mechanization; In situ water; Methods; Management.; Irrigação; Método; Manejo; Mecanização Agrícola; Solo.; Harvesting; Irrigation; Soil.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131484

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

Método para implantação de pomares na região do Submédio São Francisco.
Provedor de dados: 14
Autores: ALBUQUERQUE, J. A. S. de; ALBUQUERQUE, T. C. S. de.
Aborda sobre aração e gradagem, cobertura dos sulcos para adubação básica, distribuição do adubo, abertura dos sulcos de irrigação e plantio das mudas.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Método implantação; Sulco; Aração; Nordeste; Submédio São Francisco; Orchard; Methods; Implantation; Seedling.; Fruticultura; Muda; Pomar.; Plantio.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131341

Metodologia dos sistemas agrarios.
Provedor de dados: 14
Autores: PEIXOTO, S. E.; OLIVEIRA, C. A. V.
Zoneamento Agropecuário Municipal; Tipologia dos Sistemas Agrícolas.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Zoneamento; Sistema agricola; Tipificacao; Zoningl Agricultural systems; Methods; Agricultura; Método; Agriculture; Classification.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/134541

Priorizacao de ações de pesquisa.
Provedor de dados: 14
Autores: GALVAO, A. P. M.
A priorização das ações de pesquisa é imprescindível pela necessidade de alcançar, com recursos limitados, os objetivos e as metas das instituições e do país. Isto, geralmente, ocorre num ambiente de intensa competição entre organizações e países, aliada à preocupação da sociedade com a conservação ambiental e com as questões sociais. Este cenário é, também,caracterizado pelo grande número de demandas endereçadas às organizações de pesquisa, as quais, nem sempre têm condições de produzir ou viabilizar as soluções. É necessário, ainda, considerar a existência de novas fronteiras do conhecimento, fato que amplia o número de alternativas tecnológicas para a solução de problemas. A priorização de pesquisa naárea florestal é ainda mais necessária que na...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Priorizacao; Methods; Método; Pesquisa; Research.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/290736

Método para avaliar, sob condições controladas, a contaminação de forrageiras por larvas de nematoides gastrintestinais de pequenos ruminantes.
Provedor de dados: 14
Autores: SALLES, H. O.; CAVALCANTE, A. C. R.; VALE, N. F. L. do; BRAGA, A. C. L.; GUEDES, F. L.; VIEIRA, L. da S.
Para associar a facilidade e rapidez de execução, sem, contudo, afetar a qualidade dos resultados, a equipe da Embrapa Caprinos e Ovinos reuniu a expertise das metodologias da área de parasitologia com as da área de forragicultura e propõe neste documento um método para avaliar a carga parasitária em forrageiras, por meio da simulação das condições de campo em casa de vegetação.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Capim piatã; Nematódeo gastrintestinal; Carga parasitária; Methods; Contamination.; Parasitologia; Forragicultura; Pastagem; Brachiaria brizantha; Nematóide; Helminto gastrintestinal; Contaminação; Caprino; Ovino; Método; Simulação; Estufa.; Sheep; Goats; Nematoda; Helminths; Greenhouse effect; Pastures; Parasitology; Forage.
Ano: 2014
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1007056

Métodos de pesquisa ao nível de produtor: uma avaliação da experiência do III Curso.
Provedor de dados: 14
Autores: MIRANDA, E. E. de.
Métodos de pesquisa ao nível de produtor, origem e referências dos participantes, lista dos professores convidados, objetivos e expectativas do treinando, planos de aula e conteúdo do curso. Programação do III Curso sobre Métodos de Pesquisa ao Nível de Produtor. Textos, apostilas e publicações distribuidas aos alunos do III curso, equipe de apoio, resultado da avaliação do curso realizado pelos alunos e problemas profissionais enfrentados.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Agricultor baixa renda; Small farmers; Methods; Course; Curso; Método; Pesquisa; Research.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132563

Metodos de avaliacao da fertilidade do solo.
Provedor de dados: 14
Autores: MIRANDA, L. N. de.
bitstream/item/98807/1/cirtec-10.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Methods; Evaluation; Avaliação; Fertility; Fertilização; Soil testing.; Análise; Análise do Solo; Cerrado; Fertilidade do Solo; Método; Solo.; Fertilizers; Soil fertility; Testing.; Soil.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/547925

An analysis of seafood consumption survey methods in France.
Provedor de dados: 5
Autores: Girard, Sophie; Mariojouls, Catherine; Paquotte, Philippe; Wisner-bourgeois, Claude.
(Not controled OCR) The different statistical data sources available for seafood I consumption analysis in France belong to three types : the apparent consumption estimated on the basis of a balance between production and trade, used at national scale and for international comparison, the data in value published by the national Institute for economic statistics, aggregating food balance sheet, and economic results of inquiries about the activities of the branch industries, and the household consumption estimated through consumers' panels. A critical and historical analysis of the different available data series is presented, with focus on the major difficulties when interpreting and cross-checking the data (series breaking-nomenclature items, range of...
Tipo: Text
Palavras-chave: France; Analysis; Methods; Consumption; Seafood; SEM.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/1998/acte-2524.pdf

Long-term variability of the Abra alba community in the southern bight of the North Sea
Provedor de dados: 5
Autores: Carpenter, P; Dewarumez, Jm; Lepretre, A.
The Abra alba community from the Gravelines area has been studied since 1976. During this period, sudden and unpredictable variations of the species composition have been observed. These important changes affect a limited number of species without changing the bionomical structure of the community. The species in question are found to be characteristic of this community, and are the more abundant ones. Multivariate statistical methods were used to study quantitative data on the benthic population collected from 1978 to 1992. This analysis was performed in association with air temperature data. Results showed the existence of a six- or seven-year cycle, and this is confirmed by the observation of two complete periods. This cycle, which is found to be...
Tipo: Text
Palavras-chave: Long-term trends; Time series; Multivariate; Methods; Benthos.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00093/20398/18065.pdf

State of art and best practices for fatty acid analysis in aquatic sciences
Provedor de dados: 5
Autores: Couturier, Lydie; Michel, Loic; Amaro, Teresa; Budge, Suzanne M; Da Costa, Elisabete; De Troch, Marleen; Di Dato, Valeria; Fink, Patrick; Giraldo, Carolina; Le Grand, Fabienne; Loaiza, Iván; Mathieu-resuge, Margaux; Nichols, Peter D; Parrish, Christopher C; Sardenne, Fany; Vagner, Marie; Pernet, Fabrice; Soudant, Philippe; Browman, Howard.
Determining the lipid content and fatty acid (FA) composition of aquatic organisms has been of major interest in trophic ecology, aquaculture, and nutrition for over half a century. Although protocols for lipid analysis are well-described, their application to aquatic sciences often requires modifications to adapt to field conditions and to sample type. Here, we present the current state of knowledge of methods dedicated to both marine and freshwater lipid analyses, from sampling to data treatment. We review: (i) sample preservation, storage and transport protocols, and their effects on lipids, (ii) lipid extraction, separation of polar and neutral lipids, derivatization, and detection methods, and (iii) available tools for the statistical analysis of FA...
Tipo: Text
Palavras-chave: Aquatic nutrition; Biomarkers; Fatty acids; Marine and freshwater lipids; Methods; Recommended practices.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00651/76279/77252.pdf

The measurements of nutrient fluxes at the water-sediment interface : incubation methods (in laboratory and in situ) ; gradient method (calculated fluxes) ; benthic ecosystem tunnel
Provedor de dados: 5
Autores: Feuillet-girard, Michelle; Gouleau, Dominique; Zurburg, Wouter; Small, A. C.; Dankers, N.; Heral, Maurice.
Many flux measurements methods have been described in the literature. The purpose of our study was to compare results obtained by these different methods : gradient method, incubation method (Laboratory and in situ), benthic ecosystem tunnel. The field experiment has been performed in the Marennes Oleron Bay since May 1991 (Contrat C. E. E. FAR)
Tipo: Text
Palavras-chave: Nutrient fluxes; Measurements; Methods; Incubation; Benthic ecosystem tunnel; Marennes Oleron; Charente Maritime.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/00102/21304/18923.pdf

Comparing marine primary production estimates through different methods and development of conversion equations
Provedor de dados: 5
Autores: Regaudie-de-gioux, Aurore; Lasternas, Sébastien; Agustí, Susana; Duarte, Carlos M.
Numerous studies have compared the rates of primary production using various techniques at specific locations and times. However, these comparisons are local and cannot be used to compare or scale rates of primary production using different methods across ocean basins or seasonal time scales. Here, we quantify the range in rates of primary production derived using different techniques and provide equations that allow conversions of estimates between different methods. We do so on the basis of a compilation of data on volumetric estimates of primary production rates concurrently estimated with at least two different methods. We observed that the comparison of estimates of marine phytoplankton primary production derived from different methods reveals very...
Tipo: Text
Palavras-chave: Marine; Phytoplankton; GPP; Methods; Conversion.
Ano: 2014
URL: https://archimer.ifremer.fr/doc/00420/53120/54072.pdf

Methodology for Single-Cell Genetic Analysis of Planktonic Foraminifera for Studies of Protist Diversity and Evolution
Provedor de dados: 5
Autores: Weiner, Agnes K. M.; Morard, Raphael; Weinkauf, Manuel F. G.; Darling, Kate F.; André, Aurore; Quillévéré, Frédéric; Ujiie, Yurika; Douady, Christophe J.; De Vargas, Colomban; Kucera, Michal.
Single-cell genetic analysis is an essential method to investigate the biodiversity and evolutionary ecology of marine protists. In protist groups that do not reproduce under laboratory conditions, this approach provides the only means to directly associate molecular sequences with cell morphology. The resulting unambiguous taxonomic identification of the DNA sequences is a prerequisite for barcoding and analyses of environmental metagenomic data. Extensive single-cell genetic studies have been carried out on planktonic foraminifera over the past 20 years to elucidate their phylogeny, cryptic diversity, biogeography, and the relationship between genetic and morphological variability. In the course of these investigations, it has become evident that genetic...
Tipo: Text
Palavras-chave: Foraminifera; Protists; Single-cell genetics; Cryptic diversity; Comparability; Methods; Laboratory protocols; Standardization.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00383/49460/49938.pdf

Conservation des laminaires apres sechage a tres hautes temperatures.
Provedor de dados: 5
Autores: Perez, René.
Laminaria digitata is the only brown alga used in the French alginate industry. Air-dried and flash-dried (in a current of air at 200 to 850 degree C) algae were compared. Quality was assessed viscometrically and the results expressed graphically. Quality after drying and keeping properties were found better in flash-dried algae and the method was shown to be the cheapest of methods currently available.
Tipo: Text
Palavras-chave: Methods; High temperatures; Preservation; Laminaria digitata.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-2059.pdf

Comparaison de méthodes d'évaluation de la production secondaire d'une population de l'annélide polychète Ditrupa arietina (O.F. Muller)
Provedor de dados: 5
Autores: Medernach, L; Gremare, A.
We compared the ability of three direct methods (increment summation, loss summation and instantaneous growth rate coefficient), the size-frequency method, and eight indirect methods (Banse and Mosher, Benke, Brey, Edgar, Morin and Bourassa, Plante and Downing, Robertson and Schwinghamer et al.) to measure or to predict the secondary production of a Mediterranean population of the polychaete Ditrupa arietina. This comparison was carried out both on the 1994 cohort during its two-year lifespan and on the entire population during the two years of the study (1994-1996). Our results showed that all three direct methods are more or less equivalent. Results referring to the year 1994-1995 showed a strong overestimation of the actual production by the size...
Tipo: Text
Palavras-chave: Production secondaire; Méthodes; Polychètes; Méditerranée; Secondary production; Methods; Polychaetes; Mediterranean Sea.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00325/43614/43916.pdf

The Terebelliformia-Recent Developments and Future Directions
Provedor de dados: 5
Autores: Hutchings, Pat; Carrerette, Orlemir; Nogueira, João M. M.; Hourdez, Stephane; Lavesque, Nicolas.
Terebelliformia comprises a large group of sedentary polychaetes which live from the intertidal to the deep sea. The majority live in tubes and are selective deposit feeders. This study synthesises the current knowledge of this group, including their distribution, in the different biogeographic regions. We highlight the new methodologies being used to describe them and the resolution of species complexes occurring in the group. The main aim of this review is to highlight the knowledge gaps and to stimulate research in those directions, which will allow for knowledge of their distribution and abundances to be used by ecologists and managers.
Tipo: Text
Palavras-chave: Annelida; Polychaetes; Biodiversity assessment; Geographical distribution; Methods; Knowledge gaps.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00678/79018/81417.pdf

Making water flow: a comparison of the hydrodynamic characteristics of 12 different benthic biological flumes
Provedor de dados: 5
Autores: Jonsson, Per R.; Van Duren, Luca A.; Amielh, Muriel; Asmus, Ragnhild; Aspden, Rebecca J.; Daunys, Darius; Friedrichs, Michael; Friend, Patrick L.; Olivier, Frédéric; Pope, Nick; Precht, Elimar; Sauriau, Pierre-guy; Schaaff, Estelle.
Flume tanks are becoming increasingly important research tools in aquatic ecology, to link biological to hydrodynamical processes. There is no such thing as a "standard flume tank", and no flume tank is suitable for every type of research question. A series of experiments has been carried out to characterise and compare the hydrodynamic characteristics of 12 different flume tanks that are designed specifically for biological research. These facilities are part of the EU network BioFlow. The flumes could be divided into four basic design types: straight, racetrack, annular and field flumes. In each facility, two vertical velocity profiles were measured: one at 0.05 m s(-1) and one at 0.25 m s(-1). In those flumes equipped with Acoustic Doppler Velocimeters...
Tipo: Text
Palavras-chave: Methods; Hydrodynamics; Flume tanks; Biological physical interaction; Benthic boundary layer.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-2242.pdf

Estrogen Receptors in Immunohistochemically Stained Slides: Comparing Subjective and Computerized Evaluation Methods
Provedor de dados: 77
Autores: Millas,Ieda; Barros,Mirna Duarte; Curcio,Daniella Franco; Buck,Hudson Sousa; Liquidato,Bianca Maria.
Immunohistochemistry is a specific and sensitive staining method for detection of several proteins. One important function of this method is to help us on the diagnosis of the presence of specific receptors as the estrogen receptors. The aim of this study was to compare two different methods to evaluate immunohistochemical staining intensity to detect the presence of ER in the nasal mucosa tissue: one using a digital system and the other through conventional direct microscopy observation. Sixty two stained samples were observed and analyzed under optic microscopy by three specialized professionals, who have graded intensity from: absent, mild, moderate and intense staining. Afterwards, an objective measurement was obtained by a relative optical density...
Tipo: Journal article
Palavras-chave: Immunohistochemistry; Estrogen receptors; Methods; Microscopy.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000400007

Faecal analysis as a complementary approach to the study of feeding ecology in the common marmoset (Callithrix jacchus Linnaeus, 1758)
Provedor de dados: 81
Autores: Silvestre,Saulo M; Dantas,José O; da Rocha,Patrício Adriano; Beltrão-Mendes,Raone; Ferrari,Stephen F.
We evaluated the application of faecal analysis as a complementary approach to direct observation in the study of Callithrix jacchus feeding ecology. Our results indicate that animal foods may be more commonly consumed (based on faecal samples-FS; 61.48% of diet) than previously thought (e.g., only 22.83% based on observational data-OD). Whereas FS provide better data on animal prey, it was less effective than OD in identifying plant items. Six insect orders-including Dermaptera and two hymenopteran families, not previously recorded in marmoset diet-were identified through FS, which is thus shown to be useful in characterizing diet, especially in insectivorous primates.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Arthropods; Diet; Marmosets; Methods; Artrópodes; Dieta; Métodos; Sagui.
Ano: 2016
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832016000100020

The Anatomy of the Pigeonpea
Provedor de dados: 30
Autores: S.S.
Palavras-chave: Heterocyclic compounds; Root nodulation; Seed treatment; Fruits; Starch; Physiology; Layering; Land management; Methods; Developmental stages.
Ano: 1981
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3988

Distribution of relief seed and fertilizer in Zimbabwe
Provedor de dados: 30
Autores: D.D.
Palavras-chave: Retail marketing; Weather hazards; Farm inputs; Tropical zones; Marketing; Methods; Crops; Biological phenomena; State.
Ano: 2005
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3690

Autoradiography as a tool in primary production research
Provedor de dados: 27
Autores: Mommaerts, J.-P.
Autoradiography of C-14 labelled phytoplankton collected onto a millipore filter allows the determination of the number of photosynthetically active cells in a water sample and thus gives useful information on the standing crop in primary production studies.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Autoradiography; Methods; Primary production.
Ano: 1972
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3462

High density culturing of the brine shrimp, &lt;i&gt;Artemia salina&lt;/i&gt; L.
Provedor de dados: 27
Autores: Sorgeloos, P.
Simple to construct and inexpensive high density culturing techniques are described for culturing 2000 &lt;i&gt;Artemia&lt;/i&gt; nauplii in 1-1 bottles; 25,000 in 1-1 bottles and 50,000 in 30-1 plastic sheet cylinders. Frozen &lt;i&gt;Dunaliella&lt;/i&gt; or dried &lt;i&gt;Scenedesmus&lt;/i&gt; cells are used as food. Growth results of these high density cultures are comparable with the best growth data reported in literature. The latter however refer to low-density experiments.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia culture; Methods; Artemia.
Ano: 1973
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3464

METHODS OF CALCULATING THE COSTS IN THE ROMANIAN MINING ENTERPRISES
Provedor de dados: 31
Autores: Trifoi,   Ion Gigi; Dumbrava,   Partenie.
Determining the cost-bearers takes place according to the physical form of the production and the requirements of the calculation method. In this sense, we could choose between the synthetic calculation methods using a single expense-bearer and analytical calculation methods implying the utilization of two or more expense-bearers and able to provide several necessary information for the economic-financial analysis of the enterprise in the purpose of fundamentinf economic decisions to be made by the operative leadership of the enterprise. As stated above, we can also mention the expenditure sectors that serve the analytical character of programming and of following the expenses related to the production capacity of the enterprise. At determining expenses...
Tipo: Journal Article
Palavras-chave: Costs; Methods; Direct costs; Gross contribution; THM; Financial Economics; Resource /Energy Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/58908

Laboratory Protocols 2008: Maize Nutrition Quality and Plant Tissue Analysis Laboratory
Provedor de dados: 31
Autores: Gallicia,   L.; Nurit,   E.; Rosales,   A.; Palacios-Rojas,   N.
Tipo: Report
Palavras-chave: Zea mays; Maize; Wheats; Triticum; Transgenic plants; Genetic engineering; Gene transfer; Genetic transformation; DNA hybridization; Phenotypes; Selection; Tissue culture; In vitro culture; Biolistics; Research projects; Methods; Molecular cloning; PCR; Crop Production/Industries; F02; F30.
Ano: 2009
URL: http://purl.umn.edu/56177

The use of figures in the evaluation or rural development policies: a quest for knowledge Counting, to tell and understand
Provedor de dados: 31
Autores: Le Roy,   Anne; Millot,   Guillaume.
Using figures seems to create rigour, objectivity, knowledge and it facilitates comparisons. Consequently, an evalution without figures is hardly conceivable. Nonetheless, objectivity and precision can be just an impression given the fact that figures are constructions built on a modeled description of reality. The simplification of reality operated through a figure can hide subtle elements regarding the way public policies work. If figures can legitimately be used in evaluation, every kinds of figures and evaluations are not equivalent. Therefore, our main research question is what place for figures in evalution? This contribution relates to research about policy evaluation, seen as a mean to produce knowledge useful for the understanding of policies and...
Tipo: Conference Paper or Presentation
Palavras-chave: Data; Evaluation; Methods; Rural development policies; Agricultural and Food Policy; R58; Q18; H50.
Ano: 2011
URL: http://purl.umn.edu/99600

SELECTING DELIVERY METHODS FOR OUTREACH EDUCATION PROGRAMS
Provedor de dados: 31
Autores: Carter,   Bryson R.; Batte,   Marvin T.
Farmer perceptions of extension program delivery methods and an analysis of the relationships of method and farmer characteristics to evaluation scores are presented.  Evaluation scores tend to increase with written, interactive and variable-scheduled methods and methods where users determine the agenda.  Evaluations tend to be lower for high user cost and "high-tech" methods.  Substantial similarity of results exists across groups of farmers differing by age, education levels, farm size and farm type.  There are differences, however, in absolute valuation of the method characteristics across the groups.
Tipo: Journal Article
Palavras-chave: Extension; Education; Methods; Teaching/Communication/Extension/Profession.
Ano: 1994
URL: http://purl.umn.edu/15184

Accounting for Heterogeneity in Hedging Behavior: Comparing &amp; Evaluating Grouping Methods
Provedor de dados: 31
Autores: Pennings,   Joost M.E.; Garcia,   Philip; Irwin,   Scott H.
Heterogeneity, i.e., the notion that individuals respond differently to economic stimuli, can have profound consequences for the interpretation of behavior and the formulation of agricultural policy. This paper compares and evaluates three grouping techniques that can be used to account for heterogeneity in financial behavior. Two are well established: company-type grouping and cluster analysis. A third, the generalized mixture regression model, has recently been developed and is worth considering as market participants are grouped such that their response to the determinants of economic behavior is similar. We evaluate the grouping methods in a hedging framework by assessing their ability to reflect relationships consistent with theory. The empirical...
Tipo: Conference Paper or Presentation
Palavras-chave: Economic behavior; Heterogeneity; Hedging; Methods; Risk and Uncertainty; A10; B40; C1; D0; G0; L2; Q13.
Ano: 2011
URL: http://purl.umn.edu/114787

Q-Squared in Policy: The Use of Qualitative and Quantitative Methods of Poverty Analysis in Decision-Making
Provedor de dados: 31
Autores: Shaffer,   Paul; Kanbur,   Ravi; Hang,   Nguyen Thu; Aryeetey,   Ellen Bortei-Doku.
This introductory essay for the journal Symposium presents an overview of issues related to ‘Q-Squared in Policy: the use of qualitative and quantitative methods of poverty analysis in decision-making’. We focus on issues raised on the supply side of data use, relating, inter alia to the informational content and policy usefulness of different types of data and analysis. These issues are grouped under the headings of: outcomes vs. processes, unpacking processes and thick and thin. We begin however, with a brief discussion of one aspect of the demand side, namely the politics of data use, given its centrality to the issues at hand.
Tipo: Working or Discussion Paper
Palavras-chave: Poverty; Methods; Mixed method research; Policy process; Methodological pluralism; Impact assessment; International Relations/Trade; Political Economy.
Ano: 2009
URL: http://purl.umn.edu/48919

Methodological and practical solutions for the evaluation of the economic impact of RDP in Latvia
Provedor de dados: 31
Autores: Veveris,   Armands.
The paper analyses methodological and practical solutions that have been introduced to assess the impact of the Rural Development Programme 2007-2013 in Latvia. The work on the development of the evaluation of the impact of rural support is only in progress, the range of data sources is not large either. Therefore the author offers a solution how the evaluation of the RDP is organized in Latvia, with the resources and the amount of information available, and what activities are planned in the future. Special attention is devoted to the development of the methodology for calculating the direct economic effect, including the principles of the formation of the group of the affected farms and the control group, as well as the choice of the range of indicators...
Tipo: Conference Paper or Presentation
Palavras-chave: Evaluation; Methods; Impact; Data.; Agricultural and Food Policy; Q14; C18; O38; O47.
Ano: 2011
URL: http://purl.umn.edu/99360

Comparação de dois métodos de avaliação da fenologia de plantas, sua interpretação e representação
Provedor de dados: 88
Autores: BENCKE,CINARA S.C.; MORELLATO,L. PATRÍCIA C.
Este trabalho compara dois métodos de avaliação fenológica e sua representação gráfica. O estudo foi desenvolvido no Núcleo Picinguaba, Ubatuba, Estado de São Paulo (23º22' S e 44º48' W), em três formações florestais: floresta de restinga, floresta de planície e floresta de encosta. A floração, frutificação, queda de folhas e brotamento foram estimados mensalmente para cada indivíduo arbóreo, durante 18 meses. Foram comparados: i) percentual de intensidade de Fournier ou índice de intensidade: escala intervalar de cinco categorias de 0 a 4, com intervalo de 25% entre classes; e ii) índice de atividade ou porcentagem de indivíduos. O índice de atividade e o percentual de intensidade de Fournier forneceram informações distintas e complementares, facilitando...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic forest; Phenology; Methods; Tropical forest; Synchrony.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042002000300003

Supply chain planning and management method:the fruit purchasing company case
Provedor de dados: 94
Autores: Nakatani,Julio Kyosen; Neves,Marcos Fava.
Abstract  On the world stage, Brazil is the third largest world fruit producer. However, purchasing fruit companies are suffering from the effects of fluctuations in production and demand, inefficiency in production and information trade, lack of understanding of the dynamics of supply and reduction in profitability for all members of the fruit production chain. The supply chain management has been touted as one of the ways to reduce this volatility and improve outcomes for all involved with the supply chain. However, results of recent researches do not relate it directly to the fruit industry. To solve this problem, the present research aimed to analyze the planning and management of the supply chain of a fruit purchasing company and identify...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Planning; Supply Management; Methods; Fruits; Case Study.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000300502

Propagation and initial development in lychee plants
Provedor de dados: 94
Autores: Paixão,Marcus Vinicius Sandoval; Carvalho,Almy Junior Cordeiro de; Meireles,Robson Celestino; Faria Júnior,Hélio Pena de; Oliveira,Ednaldo Miranda de.
Abstract  The objective was to evaluate different methods of propagation and initial development of the lychee according to the place of production. The propagation methods were the Forking in seedlings produced in São João de Petrópolis-Santa Teresa and Air Layering in São João de Petrópolis, Santa Teresa-HQ, Colatina and Santa Maria de Jetibá. Each treatment consisted of 50 plants, and the percentage of graft catch, grape pick and transplant to the field was evaluated after three months. The seedlings produced in the different propagation sites were planted in the production field, with a spacing of 5x5 meters, being used as each treatment, 10 seedlings propagated in different places by Air Layering and propagation by forking. The propagation by Air...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Methods; Forking; Production.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452020000401004

Capture sequence and relative abundance of bats during surveys
Provedor de dados: 103
Autores: Esbérard,Carlos E. L.
It is expected that rare species will be gradually added to biodiversity surveys over time and that complete inventories will include rare species. The objective in the present work is to test whether the capture sequence of species during a bat survey is related to species abundance. Species with capture rates lower than 0.01x10-3 captures/hour-net were considered rare. At Ilha da Gipóia, rare species accounted for 22.22% of the total and, at Rio das Pedras Reserve, they represented 30.00%. The existence of a negative relationship between the relative abundance and the first night of capture of each species for the Ilha da Gipóia and the high significance level for the accumulation curve at both localities suggest that the documentation of a large number...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abundance; Atlantic Forest; Sampling effort; Methods; Southeastern Brazil.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000100016

Practical dyeing methods of paper mulberry pulp
Provedor de dados: 106
Autores: Kongtad, W.; Thanapase, W.
Palavras-chave: Methods; Paper; Mulberry; Pulp.
Ano: 2001
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4880

Energy Analysis of Three Rice Cultivar using different Production  Methods, case study: Iran
Provedor de dados: 111
Autores: Vahedi, Adel.
Beyond 66% of the world population are using Rice (Oryza sativa L.) as staple food which is considered one of the most popular cereals crop ranked after wheat and corn. Both mechanized and conventional methods are being applied in Iran to grow rice. This study performed an analysis of the energy consumed to produce rice in Mazandaran province, Iran, based on the following indices: energy efﬁciency, energy productivity, net energy gain, speciﬁc energy, direct and indirect energy, renewable and non-renewable energy. The cultivars of rice frequently cultivated in Iran comprise native and high yield cultivars. Face to face interviews and ﬁeld survey were conducted to collect the initial data. Given the literature and benefiting from the data collected in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Energy; Efﬁciency; Productivity; Methods; Rice.
Ano: 2021
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6007

Three decades of reference evapotranspiration estimates for a tropical watershed in the eastern Amazon
Provedor de dados: 42
Autores: SILVA JÚNIOR,RENATO O. DA; SOUZA,EVERALDO B. DE; TAVARES,ALEXANDRA L.; MOTA,JOSÉ A.; FERREIRA,DOUGLAS B.S.; SOUZA-FILHO,PEDRO W.M.; ROCHA,EDSON J.P. DA.
ABSTRACT This study estimated the reference evapotranspiration rate (ETo) for the Itacaiúnas River Watershed (IRW), Eastern Amazonia, and measured the accuracy of eight empirical equations: Penman-Monteith (PM), Priestley-Taylor (PT), Hargreaves and Samani (HS), Camargo (CAM), Thornthwaite (TH), Hamon (HM), Kharrufa (KF) and Turc (TC) using monthly data from 1980 to 2013. In addition, it verifies the regional applicability to the IRW using a for the Marabá-PA station. The methods TC and PM (FAO56) presented the best results, which demonstrate that radiation and higher temperatures are the dominant drivers in the Evapotranspiration process, while relative humidity and wind speed have a much smaller impact. The temporal and spatial variability of ETo for IRW...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Calibration; Decades; Eastern Amazon; Evapotranspiration; Methods; Watershed.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000501985

Fusarium poae and mycotoxins: potential risk for consumers
Provedor de dados: 51
Autores: Dinolfo,María I; Stenglein,Sebastián A.
Fusarium head blight is an important disease affecting cereal grains. Fusarium graminearum is the major causal agent of this disease around the world, but some researchers have documented the increased importance of F. poae. Moreover, F. poae presence may be accompanied of its mycotoxins production, being able to produce trichothecenes of type A diacetoxyscirpenol, monoacetoxyscirpenol, scirpentriol, HT-2 toxin, T-2 toxin and neosolaniol, as well as the type B nivalenol and fusarenone-X. Outside the trichotecenes group, F. poae has been reported to produce enniatins, beauvericin and moniliformin. Due to F. poae may be present in cereal grains used for food and processed products, the aims of this review is to recognize the importance of the hazard effects...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fusarium poae; Methods; Mycotoxins; Effects.
Ano: 2014
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722014000100001

A new study method of microhabitat structure of small mammals
Provedor de dados: 57
Autores: CERQUEIRA,R.; FREITAS,S. R.
The variables in habitat studies are usually transformed in such a way that they become abstractions and intuition is lost. We tested a new method for the analysis of habitat using data collected in a grid laid at the "restinga de Maricá", in Rio de Janeiro State, Brazil. Thirty-seven microhabitat variables were measured at each trap station. We assume that these variables characterize the microhabitat structure at the moment when measurements were taken. The data are transformed in 3 ways: (1) the averages of the measured variables were calculated, as usual in habitat studies; (2) the data are transformed in densities per area in square meters without reduction in the number of variables; and (3) we calculated the natural logarithms of the data thus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Discriminant analysis; Methods; Niche; Neotropics; Small mammals.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000200006

A simple and rapid method for collecting saliva to assess sodium status in sheepum
Provedor de dados: 65
Autores: Ortolani,Enrico Lippi.
Fifteen lambs were fed diet with normal (0.11%) or deficient levels of sodium ( 0.035%), respectively, for five weeks on each diet. At the end of each period saliva was collected by three different methods: swabbing with a 5 x 5 x 1.25cm synthetic sponge, aspiration with a 15cm long plastic tube connected to a 20ml syringe and sucking with a 4mm x 45cm long plastic tube through a water-jet aspirator pump or an eletric motor pump. The volume of saliva collected/min and the salivary sodium: potassium ratio were analysed. Larger volume of saliva was obtained with the developed sucking apparatus than with the sponge or the syringe. There was no influence of the method of saliva collection on the values of salivary Na:K ratio in both periods. Nevertheless, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saliva; Collection; Methods; Sheep; Salivary sodium: potassium ratio.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781997000200012