话
发表于 2025-3-26 22:28:46
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厚颜无耻
发表于 2025-3-27 03:33:02
,English Fertility, 1600–1900: Is an Economic Analysis Tenable?,e as a consequence of people (by which is usually meant married couples) adjusting their reproduction in the light of changing social and economic circumstances. These explanations, termed by Carlsson (1966) ., were characteristic of the original versions of the theory of the demographic transition
Carminative
发表于 2025-3-27 07:32:26
Stopping, Starting and Spacing: the Regulation of Fertility in Historical Populations,ally and theoretically, that mortality and fertility levels co-varied, and that much mortality variation can be understood in terms of fertility. Empirically, population growth rates seem to have varied much less than those of fertility (Wrigley, 1987), whilst theoretically it is generally assumed t
营养
发表于 2025-3-27 11:57:02
Obstacles to Fertility Decline in Developing Countries,mproving mortality conditions in developing countries During the 1970s, this accelerating trend was reversed and, by the end of that decade, the annual growth rate had dropped to 1.7 per cent, just below the rate in 1950. The reason for this change, of course, has little to do with mortality; life e
正常
发表于 2025-3-27 15:46:50
Imperatives to Reproduce: Views from North-west England on Fertility in the Light of Infertility,strands of what, from an anthropological perspective, might be termed ‘Western’ concepts of reproducing persons.. On the one hand, an emphasis on the nurturing and social aspects of parenting and, on the other, the primacy of biology in the activities of humans. These two strands can also be discern
Delude
发表于 2025-3-27 19:25:44
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ingrate
发表于 2025-3-27 22:32:46
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surrogate
发表于 2025-3-28 02:48:32
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neutral-posture
发表于 2025-3-28 07:48:59
R. I. M. Dunbarung der Lasten und einen homogenen, lastfreien Anteil zur Erfüllung der vorgegebenen Randbedingungen. Für viele Lastformen sowie für die meisten Singularitäten der Einflussflächen lassen sich inhomogene Lösungen in Form von analytischen Ausdrükken angeben, welche aber normalerweise die Randbedingung
Iatrogenic
发表于 2025-3-28 13:31:19
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