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A biodistribution study of Hemiscorpius lepturus scorpion venom and available polyclonal antivenom in rats J. Venom. Anim. Toxins incl. Trop. Dis.
Seyedian,R; Jalali,A; Babaee,MH; Pipelzadeh,MH; Rezaee,S.
The purpose of the present study was to investigate the biodistribution profile of the venom of Hemiscorpius lepturus, the most dangerous scorpion in Iran. Blood and tissue samples were taken at various predetermined intervals during a 400-minute period for the venom and a 360-minute period for the antivenom in rats. The radio-iodination was carried out using the chloramine-T method. The results showed that the descending order of venom uptake was skin, kidneys and intestine, respectively. The descending order of polyclonal antivenom uptake was kidneys, intestine, heart and lungs. The calculated pharmacokinetic parameters of the venom were Telimination half-life = 521.5 ± 12.6 minutes; Vd/F (apparent volume of distribution) = 14.9 ± 3.3 mL; clearance...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hemiscorpius lepturus scorpion venom; Polyvalent antivenom; Pharmacokinetic parameters; Tissue distribution.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992012000400005
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A Biodiversity Informatics Approach to Ethnobotany: Meta-analysis of Plant Use Patterns in Ecuador Ecology and Society
Balslev, Henrik; Department of Bioscience, Aarhus University; henrik.balslev@biology.au.dk; Borchsenius, Finn; Department of Bioscience, Aarhus University; finn.borchsenius@biology.au.dk.
We explored the relative importance of ecosystem diversity, socioeconomic, environmental, and geographical factors in determining the pattern and diversity of people’s plant use in Ecuador, based on existing ethnobotanic investigations and a large database of georeferenced plant collections. For each of 40 communities, we determined the number of plants used and their distribution among 12 use categories. Plant species richness of the ecosystem surrounding each village was determined using herbarium data and rarefaction. Variation in socioeconomic, environmental, and geographical indicator variables at the community level was summarized using Principal Component Analysis (PCA). Data were then analyzed using multiple regression and ordination...
Tipo: Peer-Reviewed Reports Palavras-chave: Ecosystem diversity; Human– Plant interaction; Plant species richness; Socioeconomic environmental and geographical factors.
Ano: 2012
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A bio-economic analysis of experimental selective devices in the Norway lobster (Nephrops norvegicus) fishery in the Bay of Biscay ArchiMer
Raveau, Adriana; Macher, Claire; Mehault, Sonia; Merzereaud, Mathieu; Le Grand, Christelle; Guyader, Olivier; Bertignac, Michel; Fifas, Spyros; Guillen Garcia, Jordi.
Several fleets with various fishing strategies operate as a mixed fishery in the Bay of Biscay. Among the main fleets, bottom trawlers target Norway lobster (Nephrops norvegicus) and, together with gillnetters, they also catch hake (Merluccius merluccius). Trawling leads to average-size catches that are below the minimum landing size (MLS); such catches are discarded since they cannot be sold. These discards result in negative impacts on stock renewal, as most of them do not survive. This also results in an economic loss for both bottom trawlers and gillnetters since these discards represent a future loss of rent. This study, based on the 2009 and 2010 selectivity experiments at sea, assesses the short- and long-term bio-economic impacts of four...
Tipo: Text Palavras-chave: Demersal trawl fishery; Bio-economic analysis; Selectivity; Simulation; Selective device; Nephrops norvegicus; Merluccius merluccius; Atlantic Ocean.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00110/22135/19774.pdf
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A bio-economic evaluation of the potential for establishing a commercial fishery on two newly developed stocks: The Ionian red shrimp fishery ArchiMer
Guillen Garcia, Jordi; Maynou, Francesc; Floros, Christos; Sampson, David; Conides, Alexis; Kapiris, Kostas.
It has recently been shown that two deep-water red shrimp species (Aristeus antennatus and Aristaeomorpha foliacea) have the potential to support a viable fishery in the Greek Ionian Sea (eastern Mediterranean). In this article, we investigate (i) the evolution that this newly developed trawl shrimp fishery may undergo when subjected to different management measures, and (ii) the most suitable extraction rates considering the uncertainties about the resource. We further analyse the effects that potential future fuel price increases and changes in the market may have on the fishery. Forecasting the biological and economic consequences of management actions, as well as the effects of market changes on inputs and outputs before they are applied, may help...
Tipo: Text Palavras-chave: Bio-economic modelling; Market development; Fuel price; Newly developed stocks; Ionian Sea; Red shrimps.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00099/20995/19800.pdf
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A bioeconomic model of carbon trading within an Australian grazing enterprise AgEcon
Gowen, Rebecca; Rolfe, John; Donaghy, Peter.
The Carbon Farming Initiative (CFI) and other carbon trading programs have been promoted as alternative sources of income for agricultural producers, particularly those on marginal land. This paper presents the results of a bioeconomic model developed to compare the relative returns from a beef enterprise against changing regrowth management practices to sequester additional carbon and sell carbon offsets. The model is constructed based on a 1000 hectare parcel of land in Central Queensland and is calculated for two landtypes; Brigalow and Eucalypt. Assuming zero transaction costs and a 20 year contract period, a carbon-cattle enterprise has higher returns that a cattle-only enterprise at relatively low carbon prices for both land types. However, results...
Tipo: Presentation Palavras-chave: Carbon; Bioeconomic modelling; Grazing economics; Environmental Economics and Policy; Livestock Production/Industries.
Ano: 2012 URL: http://purl.umn.edu/124311
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A bioinformática na pesquisa de microrganismos. Infoteca-e
FORMIGHIERI, E. F..
2012
Tipo: Artigo de divulgação na mídia (INFOTECA-E) Palavras-chave: Embrapa; Laboratório Multiusuário de Bioinformática; Laboratório de Bioinformática em Bioenergia; Estudos de microrganismos; Embrapa Agroenergia.
Ano: 2012 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/955049
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A brief inventory of sand flies (Diptera, Psychodidae) from the National Forest of the Rio Preto, state of the Espírito Santo, southeastern Brazil Biota Neotropica
Pinto,Israel de Souza; Tonini,João Filipe Riva; Ferreira,Adelson Luiz; Falqueto,Aloísio.
The inventories on sand flies are usually conducted for a long period in leishmaniasis-endemic regions. Thus, there is little data on the sand fly fauna in areas where no leishmaniasis cases have been reported. Therefore, we conducted an inventory to study the sand fly fauna in the National Forest of Rio Preto (NFRP). We carried out a brief inventory by using four CDC light traps in 2009 during winter and summer. We collected 1,403 sand flies belonging to 11 genera and 22 species. As expected, we did not find in the NFRP region sand flies species that have been reported as vectors of Leishmania. However, we found some species of sand flies with few records and that rarely have been reported in southeastern Brazil. Nevertheless, the diversity and species...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Phlebotominae; Diversity; Inventory; Atlantic Forest; Leishmaniasis.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000100025
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A brief report on some health aspects of rats fed with crescent levels of recombinant chagasin, a potential plant defense protein Anais da ABC (AABC)
Oliveira Neto,Osmundo B.; Farias,Davi F.; Vasconcelos,Ilka M.; Paes,Norma S.; Monteiro,Ana C. S.; Silva,Maria C. M. da; Guimarães,Luciane M.; Carvalho,Ana F.U.; Grossi-de-Sá,Maria F..
Chagasin may be considered a potential plant-incorporated protectant (PIP) protein due to its deleterious effects on insect pests. However, extensive safety studies with PIP's are necessary before introducing them into the target plant. Thus, a short-term feeding trial in rats with high doses of r-chagasin was conducted to provide evidences about its safety. Three test diets containing casein + r-chagasin (0.25, 0.5 and 1% of total protein) were offered to rats (10 days). The test diets did not show adverse effects upon the development, organ weight, hematological parameters and serum protein profiles of rats, providing preliminary information on the safety of r-chagasin.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chagasin; Recombinant protein; Hazard potential; Short-term rat feeding trial.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000100019
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A cadeia produtiva do marolo na região Sul de Minas Gerais. Repositório Alice
REZENDE, M. L.; MALAFAIA, G. C..
O presente trabalho tem como objetivo identificar os mecanismos envolvidos na produção e comercialização do marolo, na região de Alfenas, Minas Gerais. Foram entrevistadas no total 70 pessoas, entre produtores rurais, fabricantes de produtos a base de marolo e comerciantes. Os resultados encontrados evidenciam a precariedade do sistema de produção e comercialização do marolo, com predominância do extrativismo, venda informal dos frutos e processamento artesanal de produtos elaborados a partir do mesmo. Por outro lado, demonstram também o potencial dessa cultura como forma de complementar a renda dos pequenos produtores da região. Assim, torna-se necessária a busca por padrões de eficiência técnica e econômica da produção do marolo e seus derivados, além da...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Marolo; Cadeia produtiva; Cerrado; Mercado; Minas Gerais; Annona crassiflora.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/handle/doc/952277
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A cadeia produtiva do mel no Brasil e no estado do Pará: evolução e desafios. Repositório Alice
TEIXEIRA, J. C. S.; LEÃO, K. S.; PINTO, G. S.; MENEZES, C.; SILVA, R. C.; COSTA, N. L..
2012
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Mel; Cadeia produtiva; Pará.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/handle/doc/970744
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A call for disruptive innovation in science publishing with a new open data-sharing platform for the life sciences Nature Precedings
Donald C. Cooper.
“A disruptive innovation is an innovation that helps create a new market and value network, and eventually goes on to disrupt an existing market and value network (over a few years or decades), displacing an earlier technology. The term is used in business and technology literature to describe innovations that improve a product or service in ways that the market does not expect.” -Wikipedia
On April 3rd, 2012 Nature Precedings, Nature Publishing Group’s experiment in free pre-print publishing was shut down and no longer accepts submissions. According to the Nature Precedings website it was created in 2007 as “a place for researchers to share documents, including presentations, posters, white...
Tipo: Manuscript Palavras-chave: Biotechnology; Neuroscience; Bioinformatics.
Ano: 2012 URL: http://precedings.nature.com/documents/7151/version/1
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A Case for Developing Place-Based Fire Management Strategies from Traditional Ecological Knowledge Ecology and Society
Ray, Lily A; Department of Geography, Clark University; Resilience and Adaptation Program, University of Alaska, Fairbanks ; lray@kawerak.org; Kolden, Crystal A; Department of Geography, University of Idaho; ckolden@uidaho.edu; Chapin III, F. Stuart; Institute of Arctic Biology, University of Alaska, Fairbanks ; terry.chapin@alaska.edu.
Sustainability science promotes place-based resource management because natural processes vary among ecosystems. When local science is limited, land managers may be forced to generalize from other ecosystems that function differently. One proposed solution is to draw upon the traditional ecological knowledge that indigenous groups have accumulated through resource use. Integrating traditional ecological knowledge with conventional resource management is difficult, especially when the two offer competing explanations of local environments. Although resource managers may discount traditional ecological knowledge that contradicts conventional resource management, we investigate the possibility that these disagreements can arise when nonlocal resource...
Tipo: Peer-Reviewed Reports Palavras-chave: Alaska; Climate change; Indigenous knowledge; Traditional ecological knowledge; Wildfire.
Ano: 2012
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A case of myopericarditis associated to Campylobacter jejuni infection in the southern hemisphere BJID
Fica,Alberto; Seelmann,Daniela; Porte,Lorena; Eugenin,Daniela; Gallardo,Ricardo.
Myopericarditis is an infrequent complication of acute diarrheal illness due to Campylobacter jejuni, and it has been mainly reported in developed nations. The first case detected in Chile - an upper-middle income country -, that is coincidental with the increasing importance of acute gastroenteritis associated to this pathogen, is described. Recognition of this agent in stools requires special laboratory techniques not widely available, and it was suspected when a young patient presented with acute diarrhea, fever, and chest pain combined with electrocardiogram (EKG) abnormalities and elevated myocardial enzymes. C. jejuni myopericarditis can easily be suspected but its detection requires dedicated laboratory techniques.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Campylobacter jejuni; Myocarditis; Infectious diarrheal disease.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000300014
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A Case Study of Technological Switching and Technological Lock-In in the French Fisheries Sector: Why is Sustainable Change so Difficult? ArchiMer
Le Floc'H, Pascal; Daures, Fabienne; Guyader, Olivier; Wilson, James.
Many sectors such as the fishery show classic examples of technological lock-in and path dependence, even though some economists might predict smooth switching toward technologies that are more cost effective and sustainable. We use ideas from the evolutionary economics and public choice literatures to explain why trajectories of technological change, especially in fisheries, may not be smooth at all, but rather punctuated. The interest of technological change and switching behavior for fisheries economists and managers stems from the fact that control of effective effort, often necessary for sustainable management of the resource, remains a central management problem for that sector worldwide, even in developed countries. However, various policies put in...
Tipo: Text
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00109/21987/20057.pdf
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A cell junction pathology of neural stem cells leads to abnormal neurogenesis and hydrocephalus Biol. Res.
Rodríguez,Esteban M; Guerra,María M; Vío,Karin; González,César; Ortloff,Alexander; Bátiz,Luis F; Rodríguez,Sara; Jara,María C; Muñoz,Rosa I; Ortega,Eduardo; Jaque,Jaime; Guerra,Francisco; Sival,Deborah A; Dunnen,Wilfred F. A. den; Jiménez,Antonio J; Domínguez-Pinos,María D; Pérez-Fígares,José M; McAllister,James P; Johanson,Conrad.
Most cells of the developing mammalian brain derive from the ventricular (VZ) and the subventricular (SVZ) zones. The VZ is formed by the multipotent radial glia/neural stem cells (NSCs) while the SVZ harbors the rapidly proliferative neural precursor cells (NPCs). Evidence from human and animal models indicates that the common history of hydrocephalus and brain maldevelopment starts early in embryonic life with disruption of the VZ and SVZ. We propose that a "cell junction pathology" involving adherent and gap junctions is a final common outcome of a wide range of gene mutations resulting in proteins abnormally expressed by the VZ cells undergoing disruption. Disruption of the VZ during fetal development implies the loss of NSCs whereas VZ disruption...
Tipo: Journal article Palavras-chave: Hydrocephalus; Abnormal neurogenesis; Neural stem cells; Stem cell transplantation.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000300005
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A Censored Demand System Analysis of Fruits and Vegetables by Different Income Groups Using Micro Data AgEcon
Niu, Luyuan; Wohlgenant, Michael K..
This study examines demand for fruits and vegetables segmented by income levels in a complete demand system framework using the Consumer Expenditure Survey (CEX) from 2002 to 2006. Results show that disparities are found between high-income households and low-income households. Seasonal effects and demographic variables, such as household heads’ race and gender, region, household size and household composition, play an important role in fruit and vegetable consumption for both categories of household. In contrast, urban status, household heads’ educational level and age are not found to have a statistically significant impact for low-income households. Conditional price elasticities indicate that processed fruits and vegetables, fresh fruits and fresh...
Tipo: Presentation Palavras-chave: Agricultural and Food Policy; Consumer/Household Economics; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety.
Ano: 2012 URL: http://purl.umn.edu/123946
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A characterization of Chilean farmers based on their market-production orientation Ciencia e Investigación Agraria
Echeverría,Rodrigo; Moreira,Víctor; Barrena,José; Gopinath,Munisamy.
Chile's open trade policy, implemented during the last few decades, has greatly transformed Chilean farmers and their production systems. As a result, farmers can be grouped into three categories based on their market-production orientation: domestic, transitional or export producers. The objective of this paper is to analyze the factors underlying the decision to produce for a particular market and compare the three groups of farmers based on data from the 2007 agricultural census. A generalized ordered logit model was used to analyze different methods of production, and non-parametric methods were used to compare the groups. Results show that some farmers change categories in sequence; farmers that produce for the domestic market can later produce for...
Tipo: Journal article Palavras-chave: Agricultural trade; Export production; Generalized ordered logit model; Market.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000200002
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A ciêrncia por trás do Campo. Infoteca-e
PEREIRA, P. A. A..
2012
Tipo: Artigo de divulgação na mídia (INFOTECA-E) Palavras-chave: Embrapa; Instituição de pesquisa; Produção de alimentos.
Ano: 2012 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/930699
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A cinco años de la Revolución ciudadana: la gran deuda histórica es con las mujeres (Mujeres) Buscador Latinoamericano
Santillana, Alejandra.
La Revolución Ciudadana ha recogido parte de la agenda propuesta por las mujeres en su lucha histórica. Ha incorporado a las mujeres en espacios de toma de decisión: el 33% de la composición de la Asamblea Nacional son mujeres y el 36% del gabinete del actual gobierno está conformado por mujeres; se han ampliado los territorios y el porcentaje de mujeres que acceden a servicios básicos, a salud y educación, ha aumentado el bono y su acceso, se han propuesto y conformado planes y programas para erradicar la violencia e incluir el género en una agenda de igualdad. Sin embargo, la matriz de desigualdad en cuanto al modelo de justicia social, modelo productivo, de desarrollo, tipo de participación política y violencia de género no ha sido transformado.
Tipo: Artículo Palavras-chave: MUJERES; FEMINISMO; REVOLUCIÓN CIUDADANA; ASAMBLEA NACIONAL; ECUADOR; WOMEN; FEMINISM; CITIZEN REVOLUTION; NATIONAL ASSEMBLY.
Ano: 2012 URL: http://hdl.handle.net/10469/4286
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A cinco años de la Revolución ciudadana: la gran deuda histórica es con las mujeres (Mujeres) Buscador Latinoamericano
Santillana, Alejandra.
La Revolución Ciudadana ha recogido parte de la agenda propuesta por las mujeres en su lucha histórica. Ha incorporado a las mujeres en espacios de toma de decisión: el 33% de la composición de la Asamblea Nacional son mujeres y el 36% del gabinete del actual gobierno está conformado por mujeres; se han ampliado los territorios y el porcentaje de mujeres que acceden a servicios básicos, a salud y educación, ha aumentado el bono y su acceso, se han propuesto y conformado planes y programas para erradicar la violencia e incluir el género en una agenda de igualdad. Sin embargo, la matriz de desigualdad en cuanto al modelo de justicia social, modelo productivo, de desarrollo, tipo de participación política y violencia de género no ha sido transformado.
Tipo: Artículo Palavras-chave: MUJERES; FEMINISMO; REVOLUCIÓN CIUDADANA; ASAMBLEA NACIONAL; ECUADOR; WOMEN; FEMINISM; CITIZEN REVOLUTION; NATIONAL ASSEMBLY.
Ano: 2012 URL: http://hdl.handle.net/10469/4286
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