|
|
|
| Registros recuperados: 12.472 | |
|
|
| Aanen, Duur K.; Kuyper, Thomas W.. |
| A method is presented to derive an operational phenetic species concept for the Hebeloma crustuliniforme complex in northwestern Europe. The complex was found to consist of at least 22 biological species (intercompatibility groups; ICGs). Almost none of these biological species could be recognised unambiguously by morphological criteria. It is therefore necessary to base a phenetic species concept on combinations of biological species. However, such species delimitation must be performed within an explicitly phylogenetic context. It is crucial therefore to have a reliable estimate of the phylogeny of 22 biological species in that complex. Based on two nuclear sequences, we present a best estimate of the phylogeny of biological species within the complex.... |
| Tipo: Article / Letter to the editor |
|
| Ano: 2004 |
URL: http://www.repository.naturalis.nl/record/532249 |
| |
|
|
| Barton, David G.. |
| This paper compares the traditional forms of capitalization used by American co-ops to newly emerging forms. It is based on an in-depth review of several case co-ops. A broad framework is provided that may be beneficial in more extensive studies of capitalization practices of cooperatives and similar organizations. It is divided into three parts. Part One outlines the alternative capitalization forms being used by cooperatives and their antecedents, where conversions to other structures and forms have occurred. Two basic capitalization forms have been used by cooperatives: traditional (open) and new generation (closed). Cooperatives using both forms have elected to add new capitalization features, such as use of publicly listed stock, or have elected to... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Financial Economics; Agribusiness. |
| Ano: 2004 |
URL: http://purl.umn.edu/31794 |
| |
|
| |
|
|
| Resende,Isa Lucia de Morais; Araújo,Glein Monteiro de; Oliveira,Ana Paula de Assis; Oliveira,Ana Paula de; Ávila Júnior,Rubem Samuel de. |
| Murundu é um tipo de microrrelevo em forma de pequena elevação, geralmente arredondado, muitas vezes apresentando solo e vegetação diferentes da área circundante. Todos os morrotes encontrados em 1,08ha de um campo de murundu foram medidos (comprimento, largura e altura). Determinou-se a profundidade do lençol freático e as características do solo sobre os mesmos e na área plana adjacente. A vegetação lenhosa (cipós, arbustos e árvores) com diâmetro do caule ao nível do solo > 5mm foi amostrada em 48 morrotes. Encontraram-se 434 elevações (31,4% da área) das quais 24,3% apresentaram vegetação lenhosa. A profundidade do lençol freático sob os murundus com vegetação lenhosa variou de 99,2 a 206,8cm. O solo estudado apresentou baixo teor de bases trocáveis... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cerrado; Murundu; Vegetação; Lençol freático. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062004000100002 |
| |
|
|
| Duke, Joshua M.; Ilvento, Thomas W.. |
| Public preferences for the nonmarket services of permanently preserved agricultural land are measured and compared using conjoint analysis. The results from a survey of 199 Delawareans suggest environmental and nonmarket-agricultural services are the most important preserved-land attributes. Results also suggest that open space associated with wetlands on farms is neither an amenity nor a disamenity. On the margin, preserved parcels with agricultural and environmental attributes provide net benefits, which may exceed $1,000,000 for a 1,000-acre parcel. Preserved forestland provides benefits per acre that are statistically equivalent to cropland, though forestland may be less expensive to preserve. |
| Tipo: Journal Article |
Palavras-chave: Land Economics/Use. |
| Ano: 2004 |
URL: http://purl.umn.edu/31268 |
| |
|
|
| Harrison, R. Wes; Sambidi, Pramod R.. |
| A national survey of broiler industry executives is conducted to analyze site-specific factors related to the broiler-complex location problem. Conjoint analysis is used to analyze the broiler complex location decision. Feed costs, community attitude toward the broiler industry, availability of geographically concentrated growers, unemployment rates, and wage rates were found to be the top five factors affecting broiler company location decisions. The quality of roads between feed mill and growers; electricity, heating, water, and sewage costs; and the number of potential growers in the region were also found to be important. |
| Tipo: Journal Article |
Palavras-chave: Broilers; Conjoint analysis; Location; Poultry industry; R12; O18. |
| Ano: 2004 |
URL: http://purl.umn.edu/43457 |
| |
|
|
| Gundersen, Craig; Kuhn, Betsey A.; Offutt, Susan E.; Morehart, Mitchell J.. |
| Diverse needs and preferences across the United States provide justification for the devolution, or decentralization, of many Federal Government programs to the State or local level. The move toward devolution, however, has not been evidenced in U.S. agricultural policy, despite significant differences across States in such areas as commodity production, production costs, income distribution, and opportunities for off-farm work. The existing structure of USDA funding and program delivery already reflects an appreciation of the gains from devolution, with some programs accommodating differences in State and regional preferences. This report considers the implications of devolving $22 billion in 2003 budget outlays, mostly for domestic commodity and natural... |
| Tipo: Report |
Palavras-chave: Public policy; Devolution; Agricultural policy; Program delivery; Agricultural and Food Policy. |
| Ano: 2004 |
URL: http://purl.umn.edu/33923 |
| |
|
|
| Costa Neto, Eraldo Medeiros; UEFS; Pacheco, Josué Marques; Universidade Federal de São Carlos. |
| Discute-se a percepção e a construção do domínio etnozoológico “inseto” por moradores do povoado de Pedra Branca, município de Santa Terezinha, localizado na região centro-oeste do Estado da Bahia. Dados foram obtidos de fevereiro a maio de 2001, realizando-se entrevistas abertas, semi-estruturadas e observações comportamentais com 74 homens e 79 mulheres, cujas idades variaram de 4 a 108 anos. Registrou-se que o termo “inseto” é utilizado como uma categoria etnotaxonômica ampla que reúne diferentes organismos não sistematicamente relacionados (rato, cobra, lagartixa, etc.), além dos insetos lineanos. Com base nas informações registradas no povoado e em dados da literatura, pode-se levantar a suposição de que o domínio “inseto” ocorre como um padrão nos... |
|
Palavras-chave: 2.01.00.00-0 Biologia Geral etnozoologia; Etnoentomologia; Etnotaxonomia; Cognição; Inseto 2.01.00.00-0 Biologia Geral. |
| Ano: 2004 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1662 |
| |
|
|
| Benoit, Eric; Rochet, Marie-joelle. |
| A new time-dependent continuous model of biomass size spectra is developed. In this model, predation is the single process governing the energy flow in the ecosystem, as it causes both growth and mortality. The ratio of predator to prey is assumed to be distributed: predators may feed on a range of prey sizes. Under these assumptions, it is shown that linear size spectra are stationary solutions of the model. Exploited fish communities are simulated by adding fishing mortality to the model: it is found that realistic fishing should affect the curvature and stability of the size spectrum rather than its slope. |
| Tipo: Text |
Palavras-chave: Predation; Mortality; Growth; Biomass size spectrum; Allometry. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/2004/publication-665.pdf |
| |
|
| |
|
| |
|
|
| Shams, Rasul. |
| This paper presents a critical assessment of the widely discussed concept of Islamic Economics. The two different interpretations of Islamic economics as the study of the functioning of an interest-free economy and the validity of moral values in the economy are discussed. It is shown that none of these interpretations can help to create an acceptable foundation for an Islamic economics. Far away from laying the foundation for such an economics the question is raised how an Islamic economy would function, based on the Islamic principle of controlling the Nafs. Microeconomics and macroeconomics of such an economy are analysed and its special features are compared to an economy functioning on the basis of laws devised by the conventional economic analysis. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Household behaviour; Unemployment; Moral values; Islamic economy; Consumer/Household Economics; Political Economy; D10; E24; P50. |
| Ano: 2004 |
URL: http://purl.umn.edu/26295 |
| |
|
| |
|
|
| Alvey, James E.. |
| Lisa Hill has recently provided a new assessment of Adam Smith which attempts to reveal the 'hidden' theology which underpins his providential or 'optimistic' system of thought. Her interpretation breaks with the mainstream view of Smith as a follower of the secular, or atheistic, David Hume. While Hill concedes that there are resemblances to modern theories of evolution and spontaneous order in Smith's writings, the latter's own views differ. Darwinian evolution and Hayekian spontaneous order theories are thoroughly secular. Smith's ideas, however, are located in, what Hill calls 'a transitional phase in the history of ideas' in which belief in teleology was still mainstream. Hence, while society may change very slowly over time, in something like an... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Political Economy. |
| Ano: 2004 |
URL: http://purl.umn.edu/23711 |
| |
|
|
| Hurley, Sean P.. |
| California had a market value of agricultural products sold of $25.7 billion in the year 2002 ranking it as the top agricultural producing state in the country. Approximately 74% of this market value was attributed to crop sales. California producers spent nearly $20.5 billion on total farm expenses. The largest single expense for agricultural producers in the state was labor at $4.3 billion. Another $1.6 billion was spent on contract labor. Hired and contract labor expenses accounted for nearly 29% of total farm expense. Approximately 34,000 California farms hired over 535,000 laborers. Of these farms, 25% reported hiring migrant labor and 29% hired 10 or more employees. With labor being such an integral part of the California producers’ operations, the... |
| Tipo: Technical Report |
Palavras-chave: International Relations/Trade; Labor and Human Capital. |
| Ano: 2004 |
URL: http://purl.umn.edu/121616 |
| |
|
|
| Mather, David; Donovan, Cynthia; Jayne, Thomas S.; Weber, Michael T.; Chapoto, Antony; Mazhangara, Edward; Mghenyi, Elliot W.; Bailey, Linda; Yoo, Kyeongwon; Yamano, Takashi. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Community/Rural/Urban Development; Consumer/Household Economics; Downloads November 2008 - July 2007: 6. |
| Ano: 2004 |
URL: http://purl.umn.edu/11322 |
| |
|
|
| Mather, David; Donovan, Cynthia; Jayne, Thomas S.; Weber, Michael T.; Chapoto, Antony; Mazhangara, Edward; Bailey, Linda; Yoo, Kyeongwon; Yamano, Takashi; Mghenyi, Elliot W.. |
| This paper summarizes and synthesizes across the results of a set of country studies on the effects of prime-age adult mortality on rural households in Kenya, Malawi, Mozambique, Rwanda, and Zambia. Each study is based on large representative rural household surveys. These findings have implications for the design of efforts to mitigate some of the most important effects of rural adult mortality, and for key development policies and priorities. |
| Tipo: Report |
Palavras-chave: HIV/AIDS; Sub-Saharan Africa; Mortality; Community/Rural/Urban Development; Health Economics and Policy; Downloads July 2008 - July 2009: 21; I11. |
| Ano: 2004 |
URL: http://purl.umn.edu/54571 |
| |
|
| |
| Registros recuperados: 12.472 | |
|
|
|
