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991.
John S. Akin Richard E. Bilsborrow David K. Guilkey Barry M. Popkin 《Population studies》2013,67(2):247-262
Few detailed studies of the determinants of breastfeeding behaviour have been carried out, especially in the Middle East. We provide a comparative investigation of patterns and determinants of breastfeeding in four Middle East countries (Egypt, Jordan, Tunisia and Yemen) based on WFS data. Differences in factors influencing ever-breastfeeding, continuing breastfeeding from very short to moderate durations, and extending breastfeeding into the second year are observed, indicating ‘structural shifts’ in the determinants of breastfeeding. Differences between countries are also found which can only roughly be associated with differences in modernization and urbanization. Lack of consistently negative effects of women's education and work status variables is attributed to the extremely low levels of both in the region. Interesting results are observed regarding effects of pill use and sex of child (boys being breastfed longer), suggesting the need for thorough studies to explain these findings further. 相似文献
992.
Data taken from the ‘Determinants of Natural Fertility’ study, Bangladesh, are used with multivariate hazard models to study variations in fecundability between women, especially the relationship between nutritional status, breastfeeding practices, and the monthly probability of conceiving. It is found that fecundability varies both between women of a given age and, for a particular woman, by age. The variation is related to four variables: separation, which affects coital frequency; age, which represents biological changes; lactation practices; and the duration of amenorrhoea. Nutrition above famine or starvation levels is not a significant determinant of fecundability. The most surprising finding is the effect of the pattern of breastfeeding on fecundability: as a menstruating woman begins to wean her child, her probability of conceiving increases as her serum prolactin, which inhibits ovulation, decreases. Thus, those menstruating women who are most likely to conceive are those who have completely weaned their infants in the very recent past. 相似文献
993.
John S. Aird 《Population studies》2013,67(1):38-57
Population policy in Communist China has little demographic significance. It is of interest mainly for what it reveals about the nature of the administrative and decision making process in Peking. Although the evidence is often ambiguous, six fairly distinct phases of population policy can be distinguished, during which policy shifted from categoric denial of population problems to an endorsement of birth control and back to the denial of population problems. There are indications that the birth control campaign was first activated in response to fears of overpopulation, that it was abandoned during the “ leap forward ” in 1958 because the Chinese Communist leaders actually believed their economic expedients had achieved miraculous success, and that the recent absence of explicit policy reflects both a disillusionment with the “ leap forward ” and reluctance to resume openly the birth control campaign. Apparently, Peking is at present waiting hopefully for good news from the agricultural front before undertaking another major policy revision; if this hope is disappointed, the consequences may have great international significance. 相似文献
994.
John Peel 《Population studies》2013,67(2):133-145
Birth control practice is to-day regarded by a substantial and influential majority of doctors as an important element in preventive medicine and the provision of contraceptive advice an appropriate activity for the medical practitioner. This viewpoint is, however, a product of the last forty years and its adoption represents one of the major achievements of the English birth control movement whose past activities have been as much impeded by the hostility of the medical profession as by the opposition of religious groups and the indifference of public opinion. 相似文献
995.
John Coakley 《National Identities》2013,15(1):9-30
This article uses a large volume of data – in particular, surveys – to explore the character of Protestant identity in contemporary European states. It distinguishes three contexts. First, in the Nordic and certain adjacent states, the dominance of Protestantism was complete, but more recent secularisation has provoked a reaction from Christian parties, which enjoy strong support from active Protestants. Second, in certain states that in the past were predominantly Protestant, and where the ethos of the state was aggressively so, a significant Catholic minority was counter-mobilised politically, but as the dominant state-building parties became increasingly secular, committed Protestants reacted in different ways, including the formation of splinter parties (as in the Netherlands and Switzerland) or working within the traditional parties (as in Great Britain and Germany). Third, in a few states there has traditionally been a small Protestant minority, which has played a significant role in national development, but in these cases (mainly successor states to the Habsburg monarchy) decades of communist rule have largely obliterated what might have been distinctive patterns of political behaviour. The article explores variation in group identity patterns and in attitudes towards the state in those cases for which appropriate survey data are available, and devotes particular attention to the position within the United Kingdom, where religion has played a prominent role in the state- and nation-building process. 相似文献
996.
A Transtheoretical Model (TTM) goal-setting tool was used during strength training in women. Volunteers (mean age = 69, N = 27) were assigned to a strength training only or strength training/behavior change 12-week intervention. A pre/posttest, quasiexperimental design assessed TTM constructs, Health-Related Quality of Life, and functional fitness measurements. Multiple ANCOVAs revealed significant differences between groups on lower body strength (p = .001), upper body flexibility (p = .002), Decisional Balance (p = .024,) and Stage of Change for Exercise (p = .010). Stage of change progression may be enhanced using a goal-setting tool during strength training in older women. 相似文献
997.
How do nation-states in the twenty-first century, nation-states increasingly forced to come to terms with the ethnic heterogeneity of their citizens, deal with the problem of cultural difference? How, in particular, does the Constitution of post-apartheid South Africa — widely believed to be the most enlightened in the contemporary world, the most tolerant of diversity — strike a balance between the ‘One Law’ of ‘The Nation’ and the plurality of customary beliefs sustained, as a matter of right, by the various peoples who make up this postcolony? What happens, in the course of everyday existence, when Constitution and Custom appear to contradict one another — and to do so in such a manner as to raise questions of basic human rights, of freedom of belief, even of life-and-death? These questions are addressed in the paper through a critical, broadly situated analysis of the confrontation between the Constitution of South Africa and the Kingdom of Custom that continues to prevail in one of its provinces, the North West. By exploring a complicated case that drew the State, via its Human Rights Commission, into open conflict with a Tswana chiefdom — a case about death rituals argued, before a high court judge, in the lexicon of modern jurisprudence — it shows how a ‘living constitution’, tolerant of everyday ambiguity, is being forged in the space of strategic engagement opened up by the alternative languages and cultures of legality that exist in this ‘policultural’ postcolony. And in others like it. 相似文献
998.
There is no single framework in place in the United Kingdom for collating and harmonizing the data on migration taking place between the subnational administrative units that constitute the home nations, together with the flows of international migration between these areas and the ‘rest of the world’. This paper proposes the construction of complete matrices of subnational migration statistics on an annual basis which can then be used to monitor migration trends throughout the UK in a comprehensive manner. The paper reviews how various ‘known’ flows are estimated by the national statistics agencies and develops estimates to fill in the gaps in the matrices. It then looks at changing patterns of migration in the UK between 2001/2002 and 2010/2011, showing that migration exhibits most activity in the middle of the decade. Flows within the home nations are the most consistent over time, while the patterns of international migration and migration across the borders of the home nations exhibit more substantial change. The latter flows, although relatively small in magnitude, have not previously been studied at the subnational level in any detail. Patterns of subnational internal and international net migration are found to be negatively correlated. 相似文献
999.
We model an interaction between an informed sender and an uninformed receiver. As in the classic cheap talk setup, the informed player sends a message to an uninformed receiver who is to take an action which affects the payoffs of both players. However, in our model, the sender can communicate only through the use of discrete messages which are ordered by the cost incurred by the sender. We characterize the resulting equilibria without refining out-of-equilibrium beliefs. Subsequently, we apply an adapted version of the no incentive to separate (NITS) condition to our model. We show that if the sender and receiver have aligned preferences regarding the action of the receiver, then NITS only admits the equilibrium with the largest possible number of induced actions. When the preferences between players are not aligned, we show that NITS does not guarantee uniqueness, and we provide an example where an increase in communication costs can improve communication. As we show, this improvement can occur to such an extent that the equilibrium outperforms the Goltsman et al. (J Econ Theory 144:1397–1420, 2009) upper bound for receiver’s payoffs in mediated communication. 相似文献
1000.
Shaun P. Hargreaves Heap Jonathan H. W. Tan Daniel John Zizzo 《Theory and Decision》2013,74(3):311-333
This article examines, experimentally, whether inequality affects the social capital of trust in non-market and market settings. We consider three experimental treatments, one with equality, one with inequality but no knowledge of the income of other agents, and one with inequality and knowledge. Inequality, particularly when it is known, has a corrosive effect on trusting behaviours in this experiment. Agents appear to be less sensitive to known relative income differentials in markets than they are in the non-market settings, but trust in markets appears generally more vulnerable to the introduction of inequality than in the non-market setting. 相似文献