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| Registros recuperados: 3.035 | |
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| Abdelmagid, Banaga D.; Wohlgenant, Michael K.; Safley, Charles D.. |
| Demand for selected nursery plants sold in North Carolina (i.e., begonia, dianthus, geranium, impatiens, marigold, petunia, and vinca) was found to be affected more by prices than by income, demographic, and other variables. By using cross-sectional data, a modified AIDS model, incorporating demographic variables and quadratic income response, was estimated. Inverse Mills's ratios were also included in the model to correct for selectivity bias, resulting from zero purchases. Significant own-price elasticities ranged from -0.71 to -1.65, and income elasticities ranged from -0.78 to 0.41. |
| Tipo: Journal Article |
Palavras-chave: Demand and Price Analysis. |
| Ano: 1996 |
URL: http://purl.umn.edu/31651 |
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| ABE,T.; SUMATORA,M.; HASHIMOTO,Y.; YOSHIHARA,J.; SHIMAMURA,Y.; FUKAMI,J.. |
| Cardioleputin, a new cardioactive toxin, was purified from a stonefish venom using column chromatographies. The purified toxin was found to be an unstable protein that was susceptible to heat and freeze-thawing. This protein showed to have a molecular size of 46,000 daltons, and its amino acid composition was rich in serine and glycine, but low in basic amino acids. The crude venom induced a sudden drop in blood pressure and heart rate of rats right after administration. Both the blood pressure and heart rate returned to their original values as time elapsed, and thereafter continued to show a gradual decrease. In addition, crude venom actively affected the contractile response and suppressed the heart rate of guinea pig atria. The purified toxin caused... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cardioactive toxin; Cardioleputin; Synanceja verrucosa. |
| Ano: 1996 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000200006 |
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| Abreu,Cleide Aparecida de; Van Raij,Bernardo. |
| A análise do solo é uma ferramenta eficiente para avaliar a disponibilidade de Zn, desde que seja escolhido adequadamente o processo de extração. Neste trabalho, desenvolvido em casa de vegetação, em Campinas, em 1993, avaliou-se a influência da calagem no Zn extraível do solo, usando-se o milho como planta-teste. Utilizaram-se amostras de cinco solos, sendo duas de latossolo vermelho-amarelo, uma de latossolo húmico, uma de latossolo roxo e uma de terra roxa estruturada, as quais receberam cinco doses de calcário. Antes e depois do cultivo do milho, retiraram-se amostras de solos para análise de Zn, usando-se os extratores DTPA e Mehlich-1. Na fase inicial, as plantas de milho apresentaram sintomas de deficiência de Zn, caracterizados por uma coloração... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Milho; Zinco; Micronutriente; Análise do solo; Calagem. |
| Ano: 1996 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200022 |
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| Achterberg, C. van; Chen, X.. |
| A new genus of the tribe Rogadini Foerster (Braconidae: Rogadinae), Canalirogas (type species: Canalirogas balgooyi spec, nov.) from Indonesia (Sumatra, Bali, Sulawesi, Sula Islands, Halmahera, Irian Jaya), Malaysia (West Malaysia, East Malaysia (Sabah)), and China is described and illustrated. A key to the species of the new genus is added. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Hymenoptera; Braconidae; Rogadinae; Rogadini; Canalirogas; Oriental; Wallacea; Papuan; Key; 42.75. |
| Ano: 1996 |
URL: http://www.repository.naturalis.nl/record/318905 |
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| Achterberg, C. van; Polaszek, A.. |
| A review is given of the parasites (parasitoids) of the African cereal stem borers (including introduced species) belonging to the family Braconidae (Hymenoptera); 38 species belonging to 19 genera are keyed and treated. Three new species are described: Macrocentrus sesamivorus spec. nov. from Kenya, Somalia, and Zaïre (Macrocentrinae), Iphiaulax pilisoma spec. nov. from Senegal, and Amyosoma flavistigma spec. nov. from Australia (Braconinae). New synonyms are: Euglyptobracon Telenga, 1936, with Pseudovipio Szépligeti, 1896; Lorenzoa de Stefani-Perez, 1909, Kulczynskia Niezabitowski, 1910, and Chivinia Shestakov, 1932, with Bracon Fabricius, 1804; Euvipio Szépligeti, 1904, with Stenobracon Szépligeti, 1901; Glyptomorpha baetica var. mauretanica Szépligeti,... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Braconidae; Cossidae; Crambidae; Noctuidae; Pyralidae; Parasites; Parasitoids; Cereal stem borers; Amicrocentrum; Bassus; Amyosoma; Bracon; Digonogastra; Iphiaulax; Mesobraconoides; Steno- bracon; Euvipio; Tropobracon; Chelonus; Phanerotoma; Parallorhogas; Rhaconotus; Meteorus; Macrocentrus; Cotesia; Dolichogenidea; Glyptapanteles; Orgilus; Afrotropical; Oriental; Australian; East Palaearctic; Nearctic; Distribution; Keys; Biology.; 42.75. |
| Ano: 1996 |
URL: http://www.repository.naturalis.nl/record/317822 |
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| Acosta, Alberto. |
| El objetivo expreso inmediato de las pol??ticas econ??micas ha sido conseguir alguna mejor??a en los niveles de la Reserva Monetaria Internacional, amortiguar el ritmo inflacionario, controlar el tipo de cambio, disminuir los d??ficits del sector p??blico y mejorar la situaci??n de los balances externos. Y el objetivo impl??cito, poco conocido, ha sido la consolidaci??n de una nueva modalidad de acumulaci??n. |
| Tipo: Art??culo |
Palavras-chave: NEOLIBERALISMO; DEUDA EXTERNA; ESTADO; ECONOM??A POL??TICA. |
| Ano: 1996 |
URL: http://hdl.handle.net/10469/5924 |
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| Adams, Richard H., Jr.. |
| This paper uses income decomposition techniques to demonstrate the importance of livestock income in improving rural income distribution. It is based on three-year household panel data (1986 to 1989) from rural Pakistan. The paper first decomposes total income among five sources: agricultural, nonfarm, livestock, rental and transfer. This shows that livestock income is inequality-decreasing and that it makes the smallest contribution to overall inequality. The study then decomposes the sources of livestock inequality by type of animal. While livestock income from male animals has a negative impact on equity, livestock income from one female animal (local cow) has a positive effect. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Livestock Production/Industries. |
| Ano: 1996 |
URL: http://purl.umn.edu/42681 |
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| Adams, Richard H., Jr.. |
| This paper examines the direct, first-rounds impact of two types of remittances—internal and external remittances—on income distribution and asset accumulation in rural Pakistan. Using income decomposition techniques on a three-year panel household data set, the paper finds that internal remittances have a positive effect on equity and that external remittances have a negative effect. The study also uses an asset-accumulation model to pinpoint the effect of remittances on five types of rural assets: irrigated land owned, rainfed land owned, livestock assets, agricultural capital, and nonfarm assets. The results show that remittances do have an effect on rural asset accumulation. While external remittances have a positive and significant effect on the... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Income Distribution; Land Use; Agricultural Economics; Livestock; Pakistan; Consumer/Household Economics. |
| Ano: 1996 |
URL: http://purl.umn.edu/97305 |
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| Registros recuperados: 3.035 | |
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