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  • 1
    Digitale Medien
    Digitale Medien
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Anthropology 1 (1972), S. 27-54 
    ISSN: 0084-6570
    Quelle: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Thema: Ethnologie , Biologie
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Cambridge : Cambridge University Press
    The @classical review 44 (1994), S. 129-130 
    ISSN: 0009-840X
    Quelle: Cambridge Journals Digital Archives
    Thema: Klassische Philologie, Byzantinistik, Mittellateinische und Neugriechische Philologie, Neulatein
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    New York : Cambridge University Press
    Studies in second language acquisition 13 (1991), S. 408-409 
    ISSN: 0272-2631
    Quelle: Cambridge Journals Digital Archives
    Thema: Allgemeine und vergleichende Sprach- und Literaturwissenschaft. Indogermanistik. Außereuropäische Sprachen und Literaturen
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    New York : Cambridge University Press
    Studies in second language acquisition 14 (1992), S. 482-483 
    ISSN: 0272-2631
    Quelle: Cambridge Journals Digital Archives
    Thema: Allgemeine und vergleichende Sprach- und Literaturwissenschaft. Indogermanistik. Außereuropäische Sprachen und Literaturen
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    New York : Cambridge University Press
    Studies in second language acquisition 12 (1990), S. 88-90 
    ISSN: 0272-2631
    Quelle: Cambridge Journals Digital Archives
    Thema: Allgemeine und vergleichende Sprach- und Literaturwissenschaft. Indogermanistik. Außereuropäische Sprachen und Literaturen
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 6
    ISSN: 1572-9435
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Architektur, Bauingenieurwesen, Vermessung
    Notizen: Abstract Citizen participation at the neighborhood level will become effective only if reliable procedures can be developed for involving residents in the formulation of alternative plans before official decisions are made. Therefore, a research project in transportation planning was conducted in the Pico-Union neighborhood of Los Angeles, California, in order to design and test methods for producing reliable information that could be used by the neighborhood as well as by city transportation planners. The transportation problem of most concern to the residents of Pico-Union was the patterns and uses of their local streets, rather than the usual trip-to-work problem. Two independent methods were designed for determining what street patterns and uses were most preferred by the resident: a home-interview method and a photo-comparison method. The second enabled residents to compare photographic simulations of many possible re-designs of one of their local streets, and to make individual and group decisions about them. Results of the two methods generally agreed. However, one part of the research revealed that significant differences in decisions occur when simple changes are made in the orientation and sequence of the same two photographic simulations. Methods can be developed for obtaining information useful in urban planning at the neighborhood level by involving residents in an iterative learning and decision process. Broadly representative interdisciplinary teams are needed for further research to improve the reliability of such methods and for putting them into practice.
    Materialart: Digitale Medien
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  • 7
    Digitale Medien
    Digitale Medien
    Springer
    World journal of surgery 16 (1992), S. 384-388 
    ISSN: 1432-2323
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Beschreibung / Inhaltsverzeichnis: Résumé La mortalité par accidents de la route est de 500,000 par an dans le monde, et ne cesse d'augmenter d'année en année. Quatre pays, la Chine, l'Inde, la Russie et les Etats-Unis ont atteint le niveau de 45,000 à 50,000 morts par accident de la route par an, bien que les aspects du problème diffèrent beaucoup d'un pays complètement motorisé des autres pays, “en voie de motorisation”. Dans les pays en voie de motorisation, le taux de mortalité pour 10000 véhicles est beacoup plus élevé que dans les pays motorisés; de même, le “débit” sur le réseau routier est plus varié. Le financement de la recherche pour la réduction des accidents de la route est proportionnellement beaucoup moins favorisé que pour celle des maladies cardiaques, du cancer ou celui du SIDA. Ceci est dû, en partie, au fait que beaucoup de gouvernments considèrent et traitent le problème des accidents de la route comme un problème du transport ou de police, et non pas comme un véritable problème de santé publique. On plaide ici pour un échange des connaissances technologiques permettant de réduire le nombre d'accidents des pays complètement motorisés vers les pays en voie de motorisation.
    Kurzfassung: Resumen Las cifras de muertes por accidentes de tráfico a nivel mundial son del orden de 500,000 por ano, y en ascenso. Cuatro naciones—China, India, Rusia y los EUA—han alcanzado niveles de 45,000–50,000 muertes por año, aunque la naturaleza del problema es bien diferente en los países totalmente motorizados que en los países en vía de motorización; en los últimos las tasas de muerte por 10.000 vehículos automotores son bastante más altas que en los países motorizados, y el flujo del tráfico es mucho más variado. La investigación sobre reducción de accidentes de tráfico recibe bastante menores recursos que la investigación sobre enfermedad cardíaca, cáncer o SIDA. Se sugiere que esto se debe en parte a que los gobiernos no ven ni tratan el problema de los accidentes de tránsito como uno de salud pública, sino sólo como un problema del transporte, un problema de policía. Se plantea la necesidad de establecer mecanismos globales para la transferencia de las tecnologías relativas a la reducción de accidentes de tráfico de las naciones totalmente motorizadas a las naciones en vía de motorización.
    Notizen: Abstract Worldwide, traffic deaths are 500,000 per year and growing. Four nations, China, India, Russia, and the United States of America, have reached levels of 45,000–50,000 traffic deaths per year, although the nature of the problem is quite different in fully motorized countries from what it is in motorizing countries. In motorizing countries the death rates per 10,000 motor vehicles are much higher than in motorized countries, and also the traffic stream is much more varied. Research for the reduction of traffic injuries is funded at a proportionately much lower level than that for heart disease, cancer, or AIDS. Part of the reason for this is the failure of governments to view and to treat the problem of traffic injuries as a public health problem, but rather to view it solely as a transport problem or as a police matter. A case is made for global mechanisms for the transfer of traffic injury reducing technology from fully motorized nations to motorizing nations.
    Materialart: Digitale Medien
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  • 8
    Digitale Medien
    Digitale Medien
    Springer
    Agroforestry systems 14 (1991), S. 99-111 
    ISSN: 1572-9680
    Schlagwort(e): fodder trees ; fruit trees ; gardens ; grazing area ; species composition ; traditional agroforestry practices ; Zimbabwe
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract Traditional agroforestry systems in the communal areas of Zimbabwe are described. There are systems centered on main fields, on home gardens, on homesites and on grazing areas. In the main fields, the major tree-related management practice is the conservation of preferred indigenous fruit trees. Fruit trees are also the focus of forestry activities around the gardens and the homesite; but here it is the planting of exotic species. In a localized area of Zimbabwe Acacia albida is important in fields. There is almost no use of tree fallows in Zimbabwe. Trees in grazing areas have numerous roles, but at present there is little knowledge about traditional management practices in these areas. In the development of agroforestry systems in Zimbabwe it is suggested that those systems designed to improve fodder production will make a significant contribution to farm productivity because of the importance of cattle in the farming system and the present fodder shortage. Interventions involving the planting of fruit trees are likely to be very successful, as there is much interest in such planting. Another area that needs to be developed is that of tree plantings to improve soil fertility.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    Springer
    Agroforestry systems 22 (1993), S. 43-48 
    ISSN: 1572-9680
    Schlagwort(e): cattle ; crop production ; litter ; manure ; soil fertility management ; litter acquisition practices
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract A questionnaire survey of fifty-two small-scale farmers was conducted to elucidate the practices associated with acquisition and use of miombo litter. On average, a household cropped 3.7 ha of land and owned ten head of cattle. Farmers collected, on average, 0.5 t of litter per household per annum with larger amounts collected by those with more cropland and more cattle. Cattle ownership is related to quantities of litter collected and the destination of the collected litter, most of the litter being cured in cattle pens. Farmers with less area of cropland applied greater quantities of litter per hectare of cropland than did farmers with more cropland. On average, five tons per hectare per season of the manure-litter mixture is applied to crop fields with litter contributing, on average, 0.12 t/ha to the mixture. Some crops, particularly maize and fingermillet, are more likely to receive litter than other crops.
    Materialart: Digitale Medien
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  • 10
    ISSN: 1572-9680
    Schlagwort(e): decomposition ; litter quality ; savannas ; soil microbiology ; soil organic matter
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract An investigation into the influence of indigenous trees on soil fertility was conducted in an area of semi-arid tropical savanna in Zimbabwe on two contrasting soil types: dystrophic savanna soils (sandy soils) and eutrophic savanna soils (fine-textured soils). The study adds further support to the growing literature showing that trees have a positive influence on soil fertility. The study suggests that tree clearance, as advocated in these agropastoral systems, may not necessarily result in long-term benefits. It is argued that the primary mechanism by which soil fertility is improved is through increased litter and soil organic matter compartments under trees. The influence of trees on cation levels is greater on sandy soils than fine-textured soils because the exchange capacity of fine-textured soils is determined largely by soil texture whereas organic matter is the prime determinant of exchange capacity in sandy soils. The present study demonstrates that fertility improvement under trees is not at the expense of fertility decline in the surface soils of the zone around the tree. Leaf quality, as reflected simply in leaf C:N ratio, influences decomposition rates but the activities of termites probably confound any simple relationship. Litter quality of tree species is probably important in determining levels of soil organic matter under canopies, with higher levels under species with lower leaf quality.
    Materialart: Digitale Medien
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