نتایج جستجو برای: demographic transition theory

تعداد نتایج: 1117475  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

in this research we have studied the effect of some transition-metals (cu, ag and au) substitutions on two-electron reduction potential of flavins by application of dft method. all geometries have been optimized at blyp level of theory and “6-31+g** + lanl2dz” mixed basis set. the frequency job at the same method and basis sets has been performed to obtain gibbs free energy of compounds. it h...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده علوم انسانی و اجتماعی 1387

چکیده ندارد.

Journal: :Southern economic journal 1988
A R Chowdhury

"The aim of this paper is to analyze empirically the causal relationship, if any, between infant mortality and fertility in thirty-five developing countries." The focus is on possible relationships between the infant mortality rate and the fertility rate. "The hypothesis that infant mortality causes fertility is tested. The possibility of a 'reverse causation' is also analyzed. A one-sided ...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2016
Oskar Burger John P DeLong

'Demographic transition theory' assumes that fertility decline is irreversible. This commonly held assumption is based on observations of recent and historical reductions in fertility that accompany modernization and declining mortality. The irreversibility assumption, however, is highly suspect from an evolutionary point of view, because demographic traits are at least partially influenced by ...

2011
Andrew Jackson

The differences in the wealth of nations have been in existence historically. The extent of inequalities has been very large and even today they do exist and hence the phenomenon is disturbing. It is an undisputed fact that population of a country does have some effect on the economic growth of a country but the extent to which the population size and composition affects the economy has been a ...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2016
Kristin Snopkowski Mary C Towner Mary K Shenk Heidi Colleran

Women's education has emerged as a central predictor of fertility decline, but the many ways that education affects fertility have not been subject to detailed comparative investigation. Taking an evolutionary biosocial approach, we use structural equation modelling to examine potential pathways between education and fertility including: infant/child mortality, women's participation in the labo...

2017
David Sven Reher Glenn Sandström Alberto Sanz-Gimeno Frans W. A. van Poppel

We use a set of linked reproductive histories taken from Sweden, the Netherlands, and Spain for the period 1871-1960 to address key issues regarding how reproductive change was linked specifically to mortality and survivorship and more generally to individual agency. Using event-history analysis, this study investigates how the propensity to have additional children was influenced by the number...

Journal: :The Gerontologist 1991
J S Grigsby

Developed countries with low fertility and mortality rates are already experiencing population aging and will continue to do so. Some developing countries undergoing demographic transitions are beginning to acknowledge the issues of population aging. The projected declines in fertility in other developing countries will mean substantial population aging in the future. Alternative measures for p...

Journal: :Annual review of sociology 2017
Batool Zaidi S Philip Morgan

References to the second demographic transition (SDT) concept/theoretical framework have increased dramatically in the last two decades. The SDT predicts unilinear change toward very low fertility and a diversity of union and family types. The primary driver of these changes is a powerful, inevitable and irreversible shift in attitudes and norms in the direction of greater individual freedom an...

Journal: :Urban Development Issues 2018

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