|
|
|
| Registros recuperados: 13.807 | |
|
| |
|
| |
|
| |
|
| |
|
|
| Toucanne, Samuel; Jouet, Gwenael; Ducassou, Emmanuelle; Bassetti, Maria-angela; Dennielou, Bernard; Minto'O, Charlie Morelle Angue; Lahmi, Marjolaine; Touyet, Nicolas; Charlier, Karine; Lericolais, Gilles; Mulder, Thierry. |
| Sortable silt particle-size data and stable isotope analyses from the Corsica Trough, western Mediterranean Sea, provide a continuous palaeoceanographic record of the inflow, ventilation and vertical fluctuations of the Levantine Intermediate Water (LIW) in the northern Tyrrhenian Sea for the last 130,000 years. The results presented herein reveal that climate changes drive the Mediterranean intermediate circulation on Milankovitch to millennial time-scales. Intensified intermediate inflow and ventilation in the Corsica Trough occurred throughout the last glacial interval, with a cold / faster – warm / slower pattern existing between the Dansgaard-Oeschger climatic oscillations (including Heinrich events) and the LIW variability. By contrast, a weak... |
| Tipo: Text |
Palavras-chave: Levantine Intermediate Water; Mediterranean Sea; Thermohaline circulation; Palaeoceanography. |
| Ano: 2012 |
URL: https://archimer.ifremer.fr/doc/00054/16506/14023.pdf |
| |
|
|
| Frigola, J.; Canals, M.; Cacho, I.; Moreno, A.; Sierro, F. J.; Flores, J. A.; Berne, Serge; Jouet, Gwenael; Dennielou, Bernard; Herrera, G.; Pasqual, C.; Grimalt, J. O.; Galavazi, M.; Schneider, R.. |
| Borehole PRGL1-4 drilled in the upper slope of the Gulf of Lion provides an exceptional record to investigate the impact of late Pleistocene orbitally-driven glacio-eustatic sea-level oscillations on the sedimentary outbuilding of a river fed continental margin. High-resolution grain-size and geochemical records supported by oxygen isotope chronostratigraphy allow reinterpreting the last 500 ka upper slope seismostratigraphy of the Gulf of Lion. Five main sequences, stacked during the sea-level lowering phases of the last five glacial-interglacial 100-kyr cycles, form the upper stratigraphic outbuilding of the continental margin. The high sensitivity of the grain-size record down the borehole to sea-level oscillations can be explained by the great width of... |
| Tipo: Text |
|
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00088/19944/17599.pdf |
| |
|
| |
|
| |
|
|
| Stark, Oded; Byra, Lukasz. |
| In this paper we study the impact of the international migration of unskilled workers on skill formation and the average skill level in the home country. We analyze what appears to be the least threatening scenario from the point of view of its effect on the supply of skills at home: namely, migration exclusively by unskilled workers. Somewhat surprisingly, we find that even without the departure of skilled workers, the home country suffers reduced aggregate skill formation. Although as a response to a higher wage rate per unit of human capital in the new equilibrium skilled workers choose to accumulate more human capital than before the opening up to migration of unskilled workers, the number and share of skilled workers in the home country’s workforce... |
| Tipo: Working Paper |
Palavras-chave: Migration of unskilled workers; Human capital formation; Depletion of human capital; Labor and Human Capital; F22; J24; O15. |
| Ano: 2012 |
URL: http://purl.umn.edu/122433 |
| |
|
| |
|
|
| ARAUJO, L. S. de; NOGUEIRA, S. F.; SILVA, G. B. S. da; VICTORIA, D. de C.; BOLFE, E. L.; GREGO, C. R.; VICENTE, L. E.. |
| Este trabalho objetiva apresentar a estrutura e a descrição da base de dados do projeto GeoDegrade, com ênfase nos dados com atributos espaciais organizados em um banco de dados gerenciado em um sistema de informações geográficas (SIG) (SILVA et al., 2012). O banco de dados contém dados secundários compilados de diferentes fontes disponíveis e dados primários que serão gerados ao longo do projeto, embasando as análises das pastagens degradadas nos diferentes biomas. |
| Tipo: Circular Técnica (INFOTECA-E) |
Palavras-chave: Sistema de Informações Geográficas. |
| Ano: 2012 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/958900 |
| |
|
| |
|
|
| Drouineau, Hilaire; Lobry, Jeremy; Delpech, C.; Bouchoucha, Marc; Mahevas, Stephanie; Courrat, A.; Pasquaud, S.; Lepage, M.. |
| In the context of the European Water Framework Directive (WFD), monitoring programs and related indicators have been developed to assess anthropogenic impacts on various components of aquatic ecosystems. While great precautions are usually taken when selecting and calculating relevant core metrics, little attention is generally paid to the generation of the multimetric indicator, i.e. the combination of the different core metrics. Indeed, most multimetric indicators are generated by simply averaging or summing metrics, without taking into account their sensitivity and their variability. Moreover, few indicators provide a rigorous estimate of the uncertainty of the assessments, while this estimation is essential for managers. In this context, we developed a... |
| Tipo: Text |
Palavras-chave: Multimetric fish-based indicator; Bayesian method; Pressure-impact models; Water Framework Directive; Anthropogenic pressure; Monitoring program; Transitional waters. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00049/16037/13572.pdf |
| |
|
|
| SOUSA, M. A. A. B. de; LIMA, A. R. de S.; PEREIRA, M. P. B.. |
| A qualidade de vida é, hoje em dia, um dos fatores vistos por diversas empresas como de fundamental importância para o bom desempenho das atividades do empregado no ambiente de trabalho. Atenta aos novos desafios de uma administração moderna, a Embrapa Amazônia Ocidental, por meio desta publicação, deseja compartilhar os resultados de ações motivacionais desenvolvidas pela biblioteca Juramir Ferreira Lima, além das suas atividades rotineiras de incentivo à leitura e à utilização do acervo bibliográfico, visando à melhoria do clima organizacional. |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Biblioteca Juramir Ferreira Lima; Clima organizacional; Motivação; Incentivo à leitura.; Qualidade de Vida.. |
| Ano: 2012 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/939790 |
| |
|
| |
|
|
| 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 |
| |
|
|
| 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 |
|
| |
|
|
| 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 |
| |
|
|
| 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 |
| |
|
|
| 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 |
| |
| Registros recuperados: 13.807 | |
|
|
|
