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| Registros recuperados: 12 | |
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| Ondreas, Helene; Olu, Karine; Fouquet, Yves; Charlou, Jean-luc; Gay, Aurelien; Dennielou, Bernard; Donval, Jean-pierre; Fifis, Alexis; Nadalig, Thierry; Cochonat, Pierre; Cauquil, E; Bourillet, Jean-francois; Le Moigne, Morgan; Sibuet, Myriam. |
| A giant, 800-m wide pockmark, called Regab, was discovered along the Equatorial African margin at 3160-m water depth and was explored by remote operated vehicle (ROV) as part of the Zaiango (1998-2000) and Biozaire (2001-2003) projects carried out conjointly by TOTAL and a number of French research institutes. A microbathymetric map obtained using the ROV sensors shows that the pockmark actually consists of a cluster of smaller pockmarks aligned N70 along a 15-m deep depression. Methane was recorded all over the pockmark, the highest values along the axis of the depression where massive carbonate crusts and dense seep communities were also found. Several faunal species belong to the Vesicomyidae and Mytilidae bivalve families, as well as to Siboglinidae... |
| Tipo: Text |
Palavras-chave: Gabon; Microbathymetric map; ROV; Exploration; Pockmark; Equatorial African margin. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-1239.pdf |
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| Pasquet, Alain; Sebastian, Anthony; Begout, Marie-laure; Ledore, Yannick; Teletchea, Fabrice; Fontaine, Pascal. |
| Personality traits have been studied for some decades in fish species. Yet, most often, studies focused on juveniles or adults. Thus, very few studies tried to demonstrate that traits could also be found in fish larvae. In this study, we aimed at identifying personality traits in Northern pike (Exos lucius) larvae. Twenty first-feeding larvae aged 21 days post hatch (16.1 +/− 0.4 mm in total length, mean +/− SD) were used to establish personality traits with two tests: a maze and a novel object. These tests are generally used for evaluating the activity and exploration of specimens as well as their activity and boldness, respectively. The same Northern pike twenty larvae were challenged in the two tests. Their performances were measured by their activity,... |
| Tipo: Text |
Palavras-chave: Behavioural tests; Activity; Exploration; Boldness/shyness continuum; Freshwater species. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00296/40697/39756.pdf |
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| Pean, Samuel; Daouk, Tarek; Vignet, Caroline; Lyphout, Laura; Leguay, Didier; Loizeau, Veronique; Begout, Marie-laure; Cousin, Xavier. |
| The use of polychlorinated biphenyls (PCBs) has been banned for several decades. PCBs have a long biological half-life and high liposolubility which leads to their bioaccumulation and biomagnification through food chains over a wide range of trophic levels. Exposure can lead to changes in animal physiology and behavior and has been demonstrated in both experimental and field analyses. There are also potential risks to high trophic level predators, including humans. A maternal transfer has been demonstrated in fish as PCBs bind to lipids in eggs. In this study, behavioral traits (exploration and free swimming, with or without challenges) of contaminated zebrafish (Danio rerio) adults and their offspring (both as five-day-old larvae and as two-month-old fish... |
| Tipo: Text |
Palavras-chave: Exploration; Swimming activity; Organic pollutant effects; Generation; Video analysis. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00167/27799/26068.pdf |
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| Xu, Zhenzhong; Chen, Shiyue; Yang, Shuqing; Ma, Zaitian. |
| Gas hydrate is a kind of icy crystal body formed by water and natural gas in special conditions. The discovery of gas hydrates provides a wide sphere and a new way of thinking for finding clean and effective energy resources to replace increasingly exhausted traditional energy resources. Moreover, in our country there are a wide realm and bright prospect in the exploration of gas hydrate. This paper has summarized the progress on the study of gas hydrate. And based on the former research about gas hydrates, the integrative identification signs of gas hydrates were summarized in the aspects of seismic data, geophysical well logging, sedimentary and rock,geochemistry, topography and morphology. In the end, the author hopes it may provide some useful clues to... |
| Tipo: Journal Contribution |
Palavras-chave: Gas hydrates; Exploration; Identification. |
| Ano: 2007 |
URL: http://hdl.handle.net/1834/5856 |
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| Osterle, Ines. |
| Policies aimed at reducing emissions from fossil fuels may increase climate damages. This “Green Paradox” emerges if resource owners increase near-term extraction in fear of stricter future policy measures. Hans-Werner Sinn (2008) showed that the paradox occurs when increasing resource taxes are applied within a basic exhaustible resource model. This article highlights that the emergence of the Green Paradox within this framework relies on the non-existence of a backstop technology and fixed fossil fuel resources. In doing this, it initially presents a basic exhaustible resource model which includes a backstop technology and shows that the implementation of a specific sales tax path is effective in mitigating global warming. Secondly, it considers the case... |
| Tipo: Working Paper |
Palavras-chave: Green Paradox; Supply-side dynamics; Climate Policy; Exhaustible Resources; Fossil Fuels; Exploration; Environmental Economics and Policy; Q31; Q54; Q58; H23; H32. |
| Ano: 2012 |
URL: http://purl.umn.edu/122010 |
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| Ekboir, Javier M.; Munoz, Manrrubio; Aguilar, Jorge; Mendel, Roberto Rendon; Muniz, Jose G. Garcia; Cardenas, J. Reyes Altamirano. |
| Agricultural development policies and programs, including extension and support for innovation, implicitly assume that the whole target population has the ability to innovate. Recent research in neuroscience, education, social sciences and psychology has shown that innovative capabilities are distributed very unevenly. We explored the distribution of innovative capabilities and the ability to integrate a technological package in a sample of commercial lemon producers in Mexico. We have found that the ability to explore new techniques is different from the ability to integrate an efficient production and commercial package. The ability to explore follows an exponential distribution while integration of the package follows a bimodal distribution. The ability... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Innovation; Exploration; Participatory research; Creativity; Absorptive capabilities; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2006 |
URL: http://purl.umn.edu/56126 |
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| Registros recuperados: 12 | |
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