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| Registros recuperados: 8.909 | |
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| Dalgaard, T.; Halberg, N.; Porter, J.R.. |
| Knowledge about fossil energy use in agricultural systems is needed, because it can improve the understanding of how to reduce the unsustainable use of limited energy resources and the following greenhouse gas emissions. This study describes and validates a model to assess fossil energy use in Danish agriculture; gives an example of how the model can be used to compare organic and conventional farming; and discusses the implications and potentials of using the model to simulate energy use in scenarios of agricultural production. The model is a development of an existing model, which was too coarse to predict measured energy use on Danish farms. The model was validated at the field operational, thecroptype, and the national level, and can supplement the... |
| Tipo: Journal paper |
Palavras-chave: "Organics" in general. |
| Ano: 2001 |
URL: http://orgprints.org/15521/1/15521.pdf |
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| Souza,M.M.; Boyle,R.T.. |
| Chick cardiomyocytes, when submitted to hyposmotic swelling, exhibit a partial regulatory volume decrease (RVD). A Ca2+ influx by stretch-activated channels signals a taurine efflux and the RVD at 37°C. We evaluated the cell's performance at room temperature. Cardiomyocytes isolated and cultured from 11-day-old chick embryos were submitted to a hyposmotic solution (180 mOsm/kg H2O) at 37°C and at room temperature (26°C). Under these conditions we measured the changes in cell volume as well as the intracellular free Ca2+ (using fura-2). During hyposmotic swelling, cells at 37°C displayed a peak relative volume of 1.61 ± 0.03 and recovery to 1.22 ± 0.04 (N = 14), while cells at 26°C presented a peak swell relative volume of 1.74 ± 0.06 and did not recover... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Cell volume; RVD; Room temperature; High free calcium. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000100018 |
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| Ruel, Marie T.; Armar-Klemesu, Margaret; Arimond, Mary. |
| This document summarizes findings from the Accra Urban Food and Nutrition Study (AUFNS) about the importance of care as an input to child nutrition and the relative contribution of various maternal and household resources to the provision of care. Findings from the quantitative survey (n = 556) and the in-depth observational study (n = 22) are reviewed and complemented with insights from the participatory rapid appraisals (PRAs) carried out at the onset of the study. Results of each phase of the research have been reported separately; this report aims to integrate findings from all three components. The key findings related to the five main questions addressed by this study are summarized as follows. ! Is care an important input into child nutrition in... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Labor and Human Capital. |
| Ano: 2001 |
URL: http://purl.umn.edu/16473 |
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| Tabakis, Nikolaos M.. |
| This paper investigates the determinants of agricultural price formation emphasising on the detection of possible impacts caused by inflation uncertainty. The empirical methodology employs the GARCH technique to model the "uncertainty" variable, as well as VAR modelling and variance decomposition analysis to investigate possible causal effects among the involved variables. |
| Tipo: Journal Article |
Palavras-chave: Demand and Price Analysis. |
| Ano: 2001 |
URL: http://purl.umn.edu/26436 |
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| Park, Dooho; Davies, Stephen P.; Seidl, Andrew F.. |
| We have addressed the impact of state environmental regulation on the livestock industry by selected two species. Beef cattle, as a leading livestock of the U.S, has experienced relatively steady structural transformation, on the other hand, hog industry has changed rapidly of its size and the location. The beef industry more or less sticks with traditional factors rather than regulation. On the other hand, the hog industry, which has more chance to adopt the stringency of state regulation during the special movement, is more sensitive by the stringency of regulation, especially in the large operation. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Livestock Production/Industries. |
| Ano: 2001 |
URL: http://purl.umn.edu/36160 |
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| Dharmapala, Dhammika; Hoffmann, Sandra A.; Schwartz, Warren. |
| The standard economic model of bilateral precaution concludes that (in the absence of uncertainty, misperception, or error) all negligence-based liability rules induce socially optimal behavior by both injurers and victims. This paper generalizes the standard model to consider situations in which one party's precaution affects not only expected accident loss, but also directly affects the other party's effort or cost of taking precaution. If the injurer's care affects the victim's precaution costs (but not vice versa), most of the standard results continue to hold (except for strict liability with a defense of contributory negligence). If the victims precaution affects the injurers costs of care (but not vice versa), only strict liability with a defense of... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Law and economics; Tort laws; Risk and Uncertainty; K13; K00. |
| Ano: 2001 |
URL: http://purl.umn.edu/10626 |
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| Registros recuperados: 8.909 | |
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