Results 71 to 80 of about 23,323 (202)
Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux, 1981 Un modèle de démographie bovine a été appliqué à des troupeaux de Baoulé, N'Dama, N'Dama x Baoulé et Zébu x Baoulé, en distinguant les troupeaux infectés de trypanosomes des troupeaux indemnes par leurs taux de mortalité et leurs taux de fécondité ...
Emmanuel Camus
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Energy Use in Agriculture : an Empirical Note on Technical Development and Ecological Loading [PDF]
Tropicultura, 1996 Technical development in agriculture is largely dependent upon the interaction of labour productivity with demographie pressure on available arable land.
Conforti, P., Giampietro, M.
doaj
Peut-on parler d’une diaspora mexicaine aux États-Unis ?
Géographie et Cultures, 2005 Diaspora is a notion that could play heuristic functions. At least, if may allow researchers to surmount the traditional division between micro, mesa and macro scales, specitically tor studying contemporary international migrations.
Victor Zúñiga, Rubén Hernández-León
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Raumforschung und Raumordnung, 2005 To the extent in which demographic change and selected resulting problems are considered in public, the specialist terms of demography are also losing their isolation. One such term is “carrying capacity”.
Wolfgang Weiß
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Rentabilitätsvergleiche im Umlage- und Kapitaldeckungsverfahren : Konzepte, empirische Ergebnisse, sozialpolitische Konsequenzen [PDF]
, 2000 Die demographischen Veränderungen sind Auslöser einer grundsätzlicheren Debatte über Alterssicherungsverfahren, nämlich der Wahl eines effizienten Finanzierungsverfahrens der Altersvorsorge.
A Börsch-Supan +20 more
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Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux, 1986 Les auteurs décrivent les principes et le fonctionnement d'un recueil de données sur les performances individuelles des petits ruminants en systèmes traditionnels au Sénégal.
Olivier Faugère, B. Faugère
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Démographie et urbanisation au Sahara algérien à l’aube du XXIe siècle
Les Cahiers d’EMAM, 2018 Since the 1950’s, the population of the Algerian Sahara continued to grow faster than the northern one. Therefore today, more than one Algerian in ten lives in the Sahara, against one in fifteen in the early 1960s.
Yaël Kouzmine, Jacques Fontaine
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Prognostische Bedeutung von Serumcholesterinwerten bei Patienten mit dilatativer Kardiomyopathie [PDF]
, 2005 ZIELE: Frühere Studien deuten darauf hin, daß Patienten mit chronischer Herzinsuffizienz und niedrigen Serumcholesterinwerten eine schlechte Prognose haben.
Christ, Michael (PD Dr. med.) +1 more
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Integration of livestock with crops in response to increasing population pressure on available resources [PDF]
Tropicultura, 1990 A review of the trend of demographie movement in the Congo since the independence shows a growing urbanization. The number of people involved in farm activites have kept decreasing.
doaj
Demographie und Konsumstruktur in Deutschland [PDF]
The impacts of demographic changes on the consumption structure of private households are of high overall economic relevance. The qualitative composition of consumption entails to a high degree a certain branch structure and hence influences labor demand.
Harald Lehmann
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