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| Registros recuperados: 11.818 | |
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| Risebrobakken, B; Jansen, E; Andersson, C; Mjelde, E; Hevroy, K. |
| High-resolution records from IMAGES core MD95-2011 in the eastern Norwegian Sea provide evidence for relatively large- and small-scale high-latitude climate variability throughout the Holocene. During the early and mid-Holocene a situation possibly driven by consistent stronger westerlies increased the eastward influence of Arctic intermediate and near-surface waters. For the late Holocene a relaxation of the atmospheric forcing resulted in increased influence of Atlantic water. The main changes in Holocene climate show no obvious connection to changing solar irradiance, and spectral analysis reveals no consistent signature for any periodic behavior of Holocene climate at millennial or centennial timescales. There are, however, indications of consistent... |
| Tipo: Text |
Palavras-chave: Holocene; Climate; Nordic Seas; NAO; High resolution; Variability. |
| Ano: 2003 |
URL: https://archimer.ifremer.fr/doc/00224/33500/32119.pdf |
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| Levin, Gregor. |
| In this paper I reflect on the design of an appropriate methodological framework for my Ph.D.-project. Holism is widely recognised a vital concept for research on human-environment relationships. This is especially the case when agriculture’s impact on land-scapes is studied. Thus, for my study on landscape changes following conversion to or-ganic farming, I discuss holism in terms of its relevance in principal and in terms of its actual practicability. I recognise that a holistic angle is decisive in order to analyse and understand the spatial and temporal dynamics of the landscape and the multitude forces and processes that have a bearing on them. Keeping a general holistic concept in mind can elucidate factors and processes that might be overlooked in a... |
| Tipo: Other |
Palavras-chave: Landscape and recreation. |
| Ano: 2003 |
URL: http://orgprints.org/1364/1/AssignmentGregorLevin.pdf |
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| Amorim, Míria de. |
| Trata-se de um estudo epidemiológico descritivo, que avalia a prevalência de sinais e sintomas de 39 profissionais - Engenheiros Agrônomos e Técnicos agrícolas da Região Serrana do Estado do Rio de Janeiro -, através da aplicação de um questionário de dados ocupacionais e de condições de vida, bem como das avaliações clínica e neurológica, seguidas de exames laboratoriais, visando estabelecer o possível nexo entre a exposição ocupacional e os sintomas encontrados nos trabalhadores expostos da população em estudo. Os indivíduos integrantes do estudo têm entre 19 e 56 anos, com predominância do sexo masculino (95%), residentes nos Municípios de Teresópolis, Nova Friburgo, Bom Jardim, Cordeiro, Sumidouro, São Sebastião do Alto, Santa Maria Madalena, Cantagalo... |
| Tipo: Thesis |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2003 |
URL: http://orgprints.org/12890/7/efeitos_agrotoxicos_dissertacao_ufrj.pdf |
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| Mendonca, Maria Cristina Angelico de; Batalha, Mario Otavio; Santos, Antonio Carlos dos. |
| This present paper aims to present a historical evolution of the tourism industry, focusing on the reflexes of the industrial management paradigms as well as those of some technological innovations on it, show its features emphasizing its differences in relation to other industry forms and reflect on its trends in Brazil, considering the participation of the rural segment. Through the historical evolution, one verifies that the movements of other forms of industry, as far as growth is concerned, technological innovations and changes in management patterns have reflected directly on tourism industry. There is a trend in formation of networks, as a managerial alternative to small and medium size companies, and it happens to adapt to the tourism industry’s... |
| Tipo: Journal Article |
Palavras-chave: Industry; Tourism; Rural sector.. |
| Ano: 2003 |
URL: http://purl.umn.edu/43559 |
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| Gomes-Marcondes,M.C.C.; Ventrucci,G.; Toledo,M.T.; Cury,L.; Cooper,J.C.. |
| Cancer cachexia induces host protein wastage but the mechanisms are poorly understood. Branched-chain amino acids play a regulatory role in the modulation of both protein synthesis and degradation in host tissues. Leucine, an important amino acid in skeletal muscle, is higher oxidized in tumor-bearing animals. A leucine-supplemented diet was used to analyze the effects of Walker 256 tumor growth on body composition in young weanling Wistar rats divided into two main dietary groups: normal diet (N, 18% protein) and leucine-rich diet (L, 15% protein plus 3% leucine), which were further subdivided into control (N or L) or tumor-bearing (W or LW) subgroups. After 12 days, the animals were sacrificed and their carcass analyzed. The tumor-bearing groups showed a... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Leucine; Amino acid; Walker 256 carcinosarcoma; Body composition; Skeletal muscle protein. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003001100017 |
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| Taljaard, Pieter R.; Alemu, Zerihun Gudeta; van Schalkwyk, Herman D.. |
| A linear approximated Almost Ideal Demand System (LA/AIDS), estimated in first differences, were used to estimate the demand relations for meat (beef, chicken, pork and mutton) in South Africa from 1970 2000. Two tests for weak separability, including an F and Likelihood ratio version, failed to reject the null hypothesis of weak seperability, confirming that the four meat products are separable, and should be modelled together. According to the Hausman exogeneity test, the expenditure term in the South African meat demand model is exogenous. As a result, a Restricted Seemingly Unrelated Regression (RSUR) was used to estimate the model, whereafter the estimated parameters were used to estimate compensated, uncompensated and expenditure elasticities. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Consumer/Household Economics. |
| Ano: 2003 |
URL: http://purl.umn.edu/19088 |
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| Murphy, James J.; Allen, P. Geoffrey; Stevens, Thomas H.; Weatherhead, Darryl. |
| Individuals are widely believed to overstate their economic valuation of a good by a factor of two or three. This paper reports the results of a meta-analysis of hypothetical bias in 28 stated preference valuation studies that report monetary willingness-to-pay and that used the same mechanism for eliciting both hypothetical and actual values. The papers generated 83 observations with a median value of the ratio of hypothetical to actual value of 1.35, and the distribution has severe positive skewness. Since a comprehensive theory of hypothetical bias has not been developed, we use a set of explanatory variables based on issues that have been investigated in previous research. We find that a choice-based elicitation mechanism is important in reducing... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2003 |
URL: http://purl.umn.edu/14518 |
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| Nørremark, Michael; Griepentrog, Hans W.. |
| In this project a Real Time Kinematic Global Position System (RTKGPS) was used to provide high accuracy field operation data. The deviations and errors of the RTKGPS when used in static and dynamic modes were studied as well as the accuracy of RTK GPS in eastern Denmark (55 40 N, 12 18 E) during a 24-hour test. The project introduced a novel real time data acquisition system and post-processing algorithms for improving positioning by merging RTKGPS data with vehicle altitude. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Weed management. |
| Ano: 2003 |
URL: http://orgprints.org/4837/1/4837.pdf |
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| Registros recuperados: 11.818 | |
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