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| Registros recuperados: 3.574 | |
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| Musser, G.G.; Piik, E.. |
| A new species of the murid Hydromys is named and described, based on skins, skulls and denti tions. The sample comes from the Wissel Lakes region in the Indonesian half of New Guinea (Irian Jaya). In many features, the new species is a miniature version of Hydromys chrysogaster and may be more closely related to that large water rat than to H. habbema. Nothing is known about habits or habitat of the new rat, and it has not yet been collected elsewhere in Irian Jaya or in the eastern half of New Guinea (Papua). |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.84. |
| Ano: 1982 |
URL: http://www.repository.naturalis.nl/record/318530 |
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| Leyen, A. van; Spoel, S. van der. |
| Re-examination of the Diacria quadridentata species group based upon morphology of the shell and zoogeographic data, led to a new classification comprising the recent taxa: D. quadridentata, D. costata with an equatorial and a central water form, D. danae with an equatorial and a central water form, D. schmidti schmidti, D. erythra crassa and the fossil taxa D. schmidti cocidentalis and D. erythra erythra from surface sediments. A method has been developed to estimate the relative age of the population, based on the development of shell and soft parts. Shell growth in the period of minute and adult stages together does not exceed 0.2 mm, and differs from species to species. |
| Tipo: Article / Letter to the editor |
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| Ano: 1982 |
URL: http://www.repository.naturalis.nl/record/505420 |
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| Hamal, K.B.; Anderson, Jock R.. |
| Attitudes toward risk are explored for a sample of rice growers on small farms in Nepal, in the context of the subjective expected utility maximisation model. Farmers are found to be generally averse to risk, with diverse levels of absolute risk aversion that tend to diminish as wealth increases, both for individuals and in a cross-sectional sense. Relative risk aversion is argued to be the most comparable measure for contrasts of attitudes toward risk. |
| Tipo: Journal Article |
Palavras-chave: Risk and Uncertainty. |
| Ano: 1982 |
URL: http://purl.umn.edu/22708 |
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| Reeves, G.W.; Longmire, James L.. |
| The view is taken that institutional factors operating in the international beef market limit the usefulness of a competitive spatial equilibrium model for understanding the process of price formation in the Australian beef market. A simple theoretical model is developed to demonstrate the impact of the U.S. beef quota and Australia's meat export control scheme on Australian beef prices. It is argued that Australian beef prices are related to the weighted average of export prices rather than any "world" price. Implications for the direction and volume of Australia's beef exports are discussed. |
| Tipo: Journal Article |
Palavras-chave: Demand and Price Analysis; Livestock Production/Industries. |
| Ano: 1982 |
URL: http://purl.umn.edu/12294 |
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| Tanner, A.c.; Herbert, R.a.. |
| One hundred and forty four Gram-negative bacteria, indigenous to the maritime Antarctic environment, together with six reference strains, were examined for ninety four unit characters, including morphology, production of exoenzymes, growth temperature characteristics and ability to utilize various organic carbon sources. The resulting data were analysed using the Ssm and Sj similarity coefficients with the UPGMA algorithm. At a 70% level of similary, 97% of the isolates were included in ten clusters. 50% of the isolates were identified as belonging to the genera Aeromonas/Vibrio ; 22 %, Alcaligenes ; 2%, Pseudomonas ; and 2% Flavobacterium. The remainder could not easily be identifed with bacteria previously described in the Eighth edition of Bergey's... |
| Tipo: Text |
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| Ano: 1982 |
URL: http://archimer.ifremer.fr/doc/00306/41741/40952.pdf |
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| CUNHA, M. A. P. de. |
| A análise da evolução da região Nordeste requer uma profunda reflexão sobre a importância da introdução lenta e gradativa dos elementos do progresso em uma área ainda não preparada para grandes e súbitas mudanças. A historia desta região exprime, de forma inconteste, a maneira prejudicial de impor-se normas e regulamentos de sociedade mais avançadas em áreas que, isoladas dos polos de progresso, tem seus valores estabelecidos de acordo com os costumes e tradições ali em vigor. O planejamento para que se alcance o desenvolvimento almejado por uma comunidade, não deve desvincular-se de interpendência entre os membros. A especialização e a regra no mundo de hoje e as ligações entre os diversos setores da atividade humana deve ser cada vez mais fortes, sob... |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Fruticultura.. |
| Ano: 1982 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/637975 |
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| Registros recuperados: 3.574 | |
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