The Declining Significance of First-Birth Timing
نویسندگان
چکیده
منابع مشابه
The Declining Significance of Pow
What is the significance of prisoner-of-war (POW) status? 1 Drawing on the substance, universal acceptance, broad-based institutionalization, and enforcement *368 machinery of the Geneva Convention for the Protection of Prisoners of War (“POW Convention”), conventional wisdom maintains that denial of POW status to combatants has drastic protective and policy consequences. Contrary to this conve...
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The recent trends of declining birth weight in the United States are alarming policy makers as well as medical professionals. The trends are puzzling since most factors affecting birth weight have changed in favor of increasing it. We find that the changes in the use of labor induction and Cesarean section explain not only the trends of declining birth weight from 1989 to the mid-2000s, but als...
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constantly very low there will eventually be a decrease in the population; if it is very high an increase will follow, other factors remaining unchanged. The threshold value of the birth rate constituting the border line between decline and increase of a population is 20, that is 20 newborns annually for every 1,000 inhabitants. As is shown in Fig. 1 there are several west and north European co...
متن کاملLife-Course Relationship between Socioeconomic Circumstances and Timing of First Birth in a Birth Cohort
OBJECTIVES This study examines the influence of socioeconomic circumstances in childhood (childhood SES) and adulthood (adult SES) on timing of first birth by age 37. METHODS A longitudinal study of a 1972-1973 New Zealand birth cohort collected information on socioeconomic characteristics from age 3-32 and reproductive histories at 21, 26, 32 and 38; information on first birth was available ...
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Long-term modification of synaptic strength is one of the basic mechanisms of memory formation and activity-dependent refinement of neural circuits. This idea was purposed by Hebb to provide a basis for the formation of a cell assembly. Repetitive correlated activity of pre-synaptic and post-synaptic neurons can induce long-lasting synaptic strength modification, the direction and extent of whi...
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ژورنال
عنوان ژورنال: Demography
سال: 1985
ISSN: 0070-3370,1533-7790
DOI: 10.2307/2061177