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| Registros recuperados: 26 | |
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| Anderson, Soren T.; Newell, Richard G.. |
| Carbon capture and storage (CCS) technologies remove carbon dioxide from flue gases for storage in geologic formations or the ocean. We find that CCS is technically feasible and economically attractive within the range of carbon policies discussed domestically and internationally. Current costs are about $200 to $250 per ton of carbon, although costs are sensitive to fuel prices and other assumptions and could be reduced significantly through technical improvements. Near-term prospects favor CCS for certain industrial sources and electric power plants, with storage in depleted oil and gas reservoirs. Deep aquifers may provide an attractive longer-term storage option, whereas ocean storage poses greater technical and environmental uncertainty. Vast... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Carbon; Capture; Storage; Sequestration; Climate change; Technology; Environmental Economics and Policy; Q30; Q40; O30. |
| Ano: 2003 |
URL: http://purl.umn.edu/10879 |
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| Vieira,Renata C.; Oliveira,Arthur S. de; Fagundes,Nelson J.R.; Verrastro,Laura. |
| ABSTRACT The use of traps is extremely important in several types of ecological studies, and may assist in the capture of individuals in areas that are difficult to access. In the present study, we compared the effectiveness of wooden (Schramm) versus "Tomahawk" traps to capture Salvator merianae (Duméril & Bibron, 1839) lizards. The study was conducted in Eldorado do Sul, Rio Grande do Sul, Brazil. Field data were collected from August 2013 to March 2015, during the reproductive period of the species. The study involved two types of baited traps: i) "Tomahawk", made of galvanized steel; and ii) Schramm, a wooden trap. The capture rate of the Schramm wooden traps was 1.63 individuals/day, and of the "Tomahawk" was 0.36 individuals/day. These results... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Capture; Ecology; Traps; Tomahawk. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000400317 |
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| Abreu,Janessa Sampaio de; Urbinati,Elisabeth Criscuolo. |
| The role of vitamin C on physiological responses of matrinxã (Brycon amazonicus) submitted to air exposure was analyzed. Nine hundred fish (70.15 g) were distributed in fifteen 500 l boxes (60 fish.box-1) and fed five rations (treatments): Control (no vitamin C); T100 (100 mg); T200 (200 mg); T400 (400 mg) and T800 (800 mg of vitamin C kg.ration-1). Each ration was offered to fish of three boxes during 60 days before the stress challenge that consisted of exposing fish to air for two minutes. Samplings were carried out for 5, 15, 30 and 60 minutes after the air exposure. Blood was collected for glucose, cortisol, total protein, sodium, chloride, hematocrit, hemoglobin determination, and white and red cell count. Liver was removed for hepatosomatic index... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brycon amazonicus; Capture; Stress; Ascorbyl - polyphosphate. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672006000400013 |
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| Registros recuperados: 26 | |
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