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| Macher, Claire; Guyader, Olivier; Boncoeur, Jean. |
| This paper proposes a formal analysis of the discarding issue including the sorting labour costs. Empirical evidences from an application to the Nephrops fishery in the Bay of Biscay show that sorting is an important time consuming activity on board and a factor of discarding. However existing literature does not explicitly take into account the sorting activity and mainly focus on quota and catch constraints. The discarding model described in the paper includes sorting as a factor explaining discards. The costs of sorting landings and the time to sort them are included in the approach. The model is developed for one species studied at a tow scale with the assumption that catches are exogenous. It is shown that taking sorting costs into account, discarding... |
| Tipo: Text |
Palavras-chave: Discarding behaviour; Sorting; Microeconomic model; Nephrops fishery; Effort constraints. |
| Ano: 2006 |
URL: https://archimer.ifremer.fr/doc/00511/62306/66554.pdf |
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| Vázquez-Flores,Felicitas; Alonso,Rogelio; Villegas-Sepúlveda,Nicolás; Arriaga,Camila; Pereira-Suárez,Ana Laura; Mancilla,Raúl; Estrada-Chávez,Ciro. |
| Bovine tuberculosis, caused by Mycobacterium bovis, is a disease of socio-economic and public health importance and of significance to international trade regulation. Allelic variants of several genes have been implicated in the genetic susceptibility to tuberculosis in some human populations, but little is known in cattle. We surveyed 34 European, 18 Asian, 20 Creole and 23 hybrid bovines for polymorphisms of the bovine solute carrier family 11 a1(Slc11a1) gene, formerly known as natural resistance associated macrophage protein (Nramp1), gene by typing the cattle using two microsatellite loci closely linked to this gene. The microsatellites used were 311-22, located at the 3' untranslated region (3' UTR) of the Slc11a1 gene, and ARO28 situated about 0.6... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bovine lineages; Mycobacterium bovis; Microsatellite loci; Nramp1; Slc11a1; 3' UTR. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000300019 |
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| Wesselingh, F.P.; Salo, J.A.. |
| Between c. 23 and 8 Ma, western Amazonia was occupied by the vast Pebas long-lived lake/wetland system. The Pebas system had a variety of influences over the evolution of Miocene and modern Amazonian biota; it formed a barrier for the exchange of terrestrial biota, a pathway for the transition of marine biota into freshwater Amazonian environments, and formed the stage of remarkable radiations of endemic molluscs and ostracods. The lithological variation of the Pebas Formation has furthermore enhanced edaphic heterogeneity in western Amazonia, sustaining present-day high terrestrial diversity in the region. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Miocene; Amazonia; Biogeography; Biodiversity; Mollusca; 42.73; 38.22. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/209738 |
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| Batista,C.K.L.P.; Brito,G.A.C.; Souza,M.L.P.; Leitão,B.T.A.; Cunha,F.Q.; Ribeiro,R.A.. |
| Acrolein is a urinary metabolite of cyclophosphamide and ifosfamide, which has been reported to be the causative agent of hemorrhagic cystitis induced by these compounds. A direct cytotoxic effect of acrolein, however, has not yet been demonstrated. In the present study, the effects of intravesical injection of acrolein and mesna, the classical acrolein chemical inhibitor, were evaluated. Male Swiss mice weighing 25 to 35 g (N = 6 per group) received saline or acrolein (25, 75, 225 µg) intravesically 3, 6, 12, and 24 h before sacrifice for evaluation of bladder wet weight, macroscopic and histopathological changes by Gray's criteria, and 3 and 24 h for assessment of increase in vascular permeability. In other animals, mesna was administered intravesically... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acrolein; Bladder; Hemorrhagic cystitis; Mesna. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006001100011 |
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| Gernigon, Laurent; Lucazeau, Francis; Brigaud, Frederic; Ringenbach, Jean-claude; Planke, Sverre; Le Gall, Bernard. |
| High P-wave velocities (7.1-7.8 km/s) lower crustal bodies (LCBs) imaged along volcanic margins are commonly interpreted as plume and break-up-related thick mafic underplating. This interpretation is partly challenged in this paper based on new seismic observations and modelling of the outer Voring Basin (Norway). An exceptional strong amplitude reflection, the T Reflection, is particularly well defined below the North Gjallar Ridge (NGR) between 7 and 8 s TWT. The T Reflection is located near the volcanic lava flows emplaced during the NE Atlantic breakup (similar to 55-54 Ma ago) and coincides with the top of the LCB, forming a mid-crustal dome. Based on structural and temporal relationships, we show that the dome clearly influences the structural... |
| Tipo: Text |
Palavras-chave: Mantle plume; Norwegian margin; Underplating; Breakup; Modelling; Rifting; Volcanic margins. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-1042.pdf |
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| Costantini, Valeria; Martini, Chiara. |
| Sustainable development is a concept strictly connected with basic needs of the individuals. During the last years a number of empirical studies have tried to discover and quantify the causal relations between economic growth and environmental consumption and degradation. The most widely used empirical model is the so-called Environmental Kuznets Curve (EKC), nowadays applied to different polluting elements. Despite the huge diffusion of EKC studies, this model has been criticised for incompleteness of a sustainable development analysis. The aim of this paper is to build a Modified EKC (MEKC) in order to consider a wider concept of development rather than pure economic growth, including well-being aspects and sustainability of the development process.... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/12059 |
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| Fan, Shenggen; Al-Riffai, Perrihan; El-Said, Moataz; Yu, Bingxin; Kamaly, Ahmed. |
| The overarching objective of this report is to use a multi-level analysis approach to assess the effects of various government spending on growth and poverty reduction and their trade-offs between these two goals and to offer future policy options to achieve the Millennium Development Goals (MDGs). The study involves analyses and simulations at the different levels: household, sector/region as well as macro levels. Different analytical tools are used at the different levels. Analyses at the different levels are initially executed independently, but final synergy is drawn through an integrated macro-micro framework. This new approach has enabled us to gain new knowledge as well as new policy insights. The study confirmed previous studies that universal... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Food Security and Poverty. |
| Ano: 2006 |
URL: http://purl.umn.edu/42813 |
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| Whitacre, Brian E.; Mills, Bradford F.. |
| As residential high-speed Internet access has become more prevalent, the composition of the "digital divide" between rural and urban households has shifted. In 2000, dial-up access rates in rural household lagged behind their urban counterparts by eleven percent. By 2003, however, dial-up access rates were equal between rural and urban households, due in part to soaring high-speed rates in urban areas. This paper explores the household decision between no Internet access, dial-up access, and high-speed access. In particular, nested logit and multinomial logit specifications are compared. The paper also uses a decomposition technique to estimate the contributions of various factors (including education, income, and infrastructure levels) to each of... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Public Economics. |
| Ano: 2006 |
URL: http://purl.umn.edu/21272 |
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| Davies, Stephen P.; Loomis, John B.. |
| Many times economists are asked to estimate the demand for new consumer goods or services for which no market data exists. Typically market researchers and economists answer this challenge using surveys that ask about intended purchases (Louviere, et al. 2000) or what has become known as stated preference (SP) data. Tying this data to revealed preference (RP), or actual behavior, has been a target in a number of studies. Simplistic calibrations have been investigated in past RP-SP studies, such as Loomis, et al. 2001. This paper offers an alternative solution that allows the magnitude of the calibration correction to vary based on Klein and Sherman's (1997) Orbit procedure. This paper extends the original Orbit procedure of Klein and Sherman by... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 2006 |
URL: http://purl.umn.edu/21204 |
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| Camino,Nora B.; Brividoro,Melina; Leyh,Gabriela. |
| A new species of Cephalobium from Gorina, La Plata, Argentina, parasiting nymphs of Anurogryllus muticus (De Geer) (Orthoptera, Gryllidae) is described and illustrated. This nematode can be characterized by having the stoma longer than broad, the glottoid apparatus anisoglottid and anisomorphic, divided into two portions, one with cuticularized walls and the other with three simple dorsal teeth. The male is further characterized by the presence of two long and separated spicules and short gubernaculum without any projection. Genital papillae are arranged in five postanal pairs. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cephalobium tridentata n. sp.; Taxonomy. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492006002500001 |
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