نتایج جستجو برای: fertility behavior

تعداد نتایج: 666127  

2014
Bernhard Nauck Johannes Huinink Jens Ehrhardt Martin Kohli

BACKGROUND The paper describes the origins of the Value of Children (VOC) approach to the cross-cultural research on fertility behavior around the Pacific Rim, and critically discusses its shortcomings at this stage. OBJECTIVE The paper then demonstrates how the approach derives its theoretical coherence from the theory of social production functions, making reference to empirical evidence. RES...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - پژوهشکده علوم انسانی و اجتماعی 1391

the central purpose of this study was to conduct a case study about the role of self monitoring in teacher’s use of motivational strategies. furthermore it focused on how these strategies affected students’ motivational behavior. although many studies have been done to investigate teachers’ motivational strategies use (cheng & d?rnyei, 2007; d?rnyei & csizer, 1998; green, 2001, guilloteaux & d?...

ژورنال: افق دانش 2020

Aims Fertility is an important factor for population growth and its proportion. Regarding the overall decrease in the total fertility rate in Iran and reaching below the replacement rate, this study aimed at determining the effect of the education based on the Theory of Planned Behavior (TPB) on women’s fertility intention. Methods & Materials This interventional study was conducted on 100 pre...

2015
Sandra Krapf Michaela Kreyenfeld

The German Mikrozensus is a data set that is frequently used to study fertility behavior. With its large sample size, the dataset also offers the opportunity to investigate childbearing among population subgroups, such as particular migrant groups. Because birth histories are not surveyed in the Mikrozensus, scholars have frequently employed the Own-Children Method (OCM) to generate fertility s...

2008
Jan M. Hoem

This chapter outlines the positions in the current debate about the possibility of using public policies to influence fertility. We note the polarization between, on the one hand, those who view public policies as obvious means for lifting the currently low fertility levels in Europe, in line with the role of economic policies in a modern society; and, on the other hand, those who feel that fam...

2007

Recent demographic research has largely been focused on the rapid decline of fertility rates throughout the developed and developing world. The classic theories of the determinants of population change frequently used to model and explore fertility decline and transition in all populations have resulted from substantial empirical research. However many questions about the mechanisms involved in...

Journal: :Evolution; international journal of organic evolution 2011
Jay A Rosenheim

Is reproduction by adult female insects limited by the finite time available to locate hosts (time limitation) or by the finite supply of eggs (egg limitation)? An influential model predicted that stochasticity in reproductive opportunity favors elevated fecundity, rendering egg limitation sufficiently rare that its importance would be greatly diminished. Here, I use models to explore how stoch...

Journal: :PLoS ONE 2008
Evan L. Preisser Daniel I. Bolnick

BACKGROUND Most ecological models assume that predator and prey populations interact solely through consumption: predators reduce prey densities by killing and consuming individual prey. However, predators can also reduce prey densities by forcing prey to adopt costly defensive strategies. METHODOLOGY/PRINCIPAL FINDINGS We build on a simple Lotka-Volterra predator-prey model to provide a heur...

Journal: :Australian health review : a publication of the Australian Hospital Association 2002
Niyi Awofeso Raymond Naoum

Prisons are invariably unisex institutions where, besides many deprivations, heterosexual expression in its normal sense is absent. It is this characteristic that make prisons settings potentially fertile grounds for sexual aberrations. Since definite and accurate data concerning sexual activities among prison inmates are difficult to obtain, the phenomenon of sexual practices in prisons has tr...

2009
Elizabeth G. Patterson

Each day in the United States thousands of persons are jailed on charges arising from failure to pay court-ordered child support. Some of them have been convicted of contempt of court, a crime based on willful defiance of the court order. However, most are incarcerated pursuant to the court’s civil authority to jail contemnors as a means of coercing compliance with the order. In the case of the...

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