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| Registros recuperados: 12.472 | |
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| Pereira,Maria do Socorro; Barbosa,Maria Regina de V.. |
| Este trabalho consiste no levantamento dos representantes das subfamílias Antirheoideae, Cinchonoideae e Ixoroideae na Reserva Biológica Guaribas, Paraíba, Brasil. Foram realizadas coletas intensivas no período de outubro/2000 a outubro/2001, as quais resultaram no reconhecimento de 12 espécies, 10 gêneros e cinco tribos, distribuídos nas três subfamílias. A subfamília melhor representada foi Antirheoideae, com cinco espécies, quatro gêneros e duas tribos. Os gêneros com maior número de espécies foram Guettarda L. (2) e Tocoyena Aubl. (2). Alibertia A. Rich. ex DC., Alseis Schott, Chiococca P. Browne, Chomelia Jacq., Coutarea Aubl., Posoqueria Aubl., Sabicea Aubl. e Salzmannia DC. apresentaram uma única espécie cada. São apresentadas chaves para... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rubiaceae; Nordeste do Brasil; Mata Atlântica; Taxonomia. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062004000200010 |
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| Lyra,T.M.P.; Silva,J.A.. |
| A análise da ocorrência da febre aftosa no Brasil indicou a endemicidade da doença até os anos 80, quando houve redução de focos após a identificação e controle das áreas endêmicas e uso da vacina de qualidade. O vírus tipo A foi responsável pelas principais epidemias. O tipo C foi o de menor incidência entre os três tipos diagnosticados no país (O, A e C). O programa de erradicação, implantado em 1992, com estratégias diferenciadas, de acordo com o sistema de produção e participação de representantes do agronegócio, resultou na eliminação dos focos a partir de 2001. O relato da febre aftosa no Brasil desde a década de 60 alerta para a importância de se conhecer o histórico da doença e elaborar a política pública em saúde animal e os planos de contingência... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Epidemiologia; Febre aftosa; Bovino; Brasil. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352004000500001 |
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| Pierick, E. Ten; Beekman, Volkert; van der Weele, C.N.; Meeusen, Marieke J.G.; de Graaff, R.P.M.. |
| Many business organisations put a lot of effort in raising their performance levels in the three dimensions of sustainability - i.e., people, planet, and profit. It is therefore important to measure and weight the effects of their efforts. In this report a framework is presented that is helpful in analysing the social, environmental, and economic activities of a business firm or chain. This framework is based on Wood's (1991) model of corporate social performance. However, it is enriched by incorporating contributions by other significant scientific studies in the fields of corporate social performance and business ethics. Furthermore, based on a review of the scientific literature, suggestions for operationalising the framework are offered. |
| Tipo: Report |
Palavras-chave: Institutional and Behavioral Economics. |
| Ano: 2004 |
URL: http://purl.umn.edu/29081 |
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| Jin, Yufei; Turvey, Calum G.. |
| The purpose of this paper is to develop a general approach to valuing commodity-linked bonds (CLBs) based on the Heath-Jarrow-Morton (HJM) framework. The model deals with four dimensions of uncertainty: prices of the underlying commodity, the value of firm that issues bonds, interest rates, and convenience yields. A mathematical formula for the price of a commodity-linked bond is derived. The previous results in Black and Scholes (1973), Merton (1973), Schwartz (1982), and Atta-Mensah (1992) can be obtained by specifying appropriate restrictions in the general model. Using similar assumptions, as found in Miura and Yamauchi (1998) and Carr (1987), more reasonable results can be obtained through the application of the present model. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Financial Economics. |
| Ano: 2004 |
URL: http://purl.umn.edu/20039 |
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| Arbenser, Lawrence. |
| The need for external capital (FDI) inflow to finance the current account deficit of developing countries cannot be over-emphasized. Foreign direct investment takes predominance over other types of capital inflow into developing countries. How would an increase in FDI and a reduction in import tariff levels in isolation affect household welfare and other macroeconomic indicators? How would the concurrent application of the two enhance the expected impact? This paper explores the above questions by using a Computable General Equilibrium (CGE) model for Ghana, implemented in the General Algebraic Modeling System (GAMS) to carry out specific counterfactual simulations. This paper concludes that the primary benefit of an increase in FDI inflow for a... |
| Tipo: Working or Discussion Paper |
Palavras-chave: FDI; Import tariff; CGE; Ghana; GAMS; Household welfare trade deficit; Exchange rate; Import; Export; International Relations/Trade. |
| Ano: 2004 |
URL: http://purl.umn.edu/18829 |
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| Cortese, G; Abelmann, A; Gersonde, R. |
| ODP Site 1089 is optimally located in order to monitor the occurrence of maxima in Agulhas heat and salt spillage from the Indian to the Atlantic Ocean. Radiolarian-based paleotemperature transfer functions allowed to reconstruct the climatic history for the last 450 kyr at this location. A warm sea surface temperature anomaly during Marine Isotope Stage (MIS) 10 was recognized and traced to other oceanic records along the surface branch of the global thermolialine (THC) circulation system, and is particularly marked at locations where a strong interaction between oceanic and atmospheric overturning cells and fronts occurs. This anomaly is absent in the Vostok ice core deuterium, and in oceanic records from the Antarctic Zone. However, it is present in the... |
| Tipo: Text |
Palavras-chave: Agulhas; Paleotemperature; Radiolarians; South Atlantic. |
| Ano: 2004 |
URL: https://archimer.ifremer.fr/doc/00229/34028/32422.pdf |
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| Schmid, Otto; Hamm, Ulrich; Richter, Toralf; Dahlke, Andrea. |
| A Guide to Successful Organic Marketing Initiatives provides practical application of the business and marketing ideas developed from the EU research project OMIaRD. Businesses based on the collaboration between organic farmers often have resources of enthusiasm and considerable skill in agricultural production but lack the means and expertise to develop successfully in the face of rapidly changing market structures and conditions. It provides useful advice on the market and policy issues to take into account, and on preparing to establish a new business with farmer participation, managing the start-up phase, and on into consolidation of a mature enterprise. It will be useful for organic farmers, enterprise managers, and practitioners in rural and regional... |
| Tipo: Book |
Palavras-chave: Farming Systems; Markets and trade. |
| Ano: 2004 |
URL: http://orgprints.org/25539/1/1338-marketing.html |
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| MacAuley, Molly K.. |
| In 1994 one of the most radical institutional restructurings in the U.S. government's provision of critical weather information took place after eight unsuccessful attempts. A presidential decision directive merged weather data collection by satellites operated by the Department of Defense for military operations and satellites operated by the Department of Commerce for civilian weather forecasting. Such radical restructuring involving government agencies with different objectives, economic constraints, and operating cultures is rare. This paper reviews the decision that led to "convergence," discusses economic arguments advanced for the merger, and finds that the problem of an incomplete contract, from the perspective of contract theory, is the... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Weather economics; Space economics; Value of information; Government policy; Environmental Economics and Policy; Q28; O32; Q00. |
| Ano: 2004 |
URL: http://purl.umn.edu/10539 |
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| Eisen-Hecht, Jonathan I.; Kramer, Randall A.; Huber, Joel. |
| This study examines the factors the influence the values and importance that landowners place on the attributes of voluntary wetland restoration programs. Choice-based conjoint analysis, a stated preference method, was used to estimate the marginal utilities and values for restoration program attributes for North Carolina landowners. Landowner preferences were estimated at individual and aggregate levels to examine the importance of modeling heterogeneous preferences. Choice modeling performed at both aggregate and individual levels demonstrated the information gains from a disaggregated approach. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 2004 |
URL: http://purl.umn.edu/20253 |
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| Andersen, C; Koc, N; Moros, M. |
| A composite record (LO09-14) of three sediment cores from the subpolar North Atlantic (Reykjanes Ridge) was investigated in order to assess surface ocean variability during the last 11 kyr. The core site is today partly under the influence of the Irminger Current (IC), a branch of the North Atlantic Drift continuing northwestward around Iceland. However, it is also proximal to the Sub-Arctic Front (SAF) that may cause extra dynamic hydrographic conditions. We used statistical methods applied to the fossil assemblages of diatoms to reconstruct quantitative sea surface temperatures (SSTs). Our investigations give evidence for different regional signatures of Holocene surface oceanographic changes in the North Atlantic. Core LO09-14 reveal relatively low and... |
| Tipo: Text |
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| Ano: 2004 |
URL: https://archimer.ifremer.fr/doc/00229/34003/32348.pdf |
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| Registros recuperados: 12.472 | |
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