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41.
Noreen Goldman 《Demography》1981,18(4):659-679
An analysis of marital histories from World Fertility Survey data in Colombia, Panama, and Peru indicates a high level of union dissolution: the probabilities of a first union ending by separation within twenty years of the onset of union equal .27, .40, and .18 in the three countries respectively. Dissolution probabilities are especially high among women with young ages at first union and among women residing in urban areas. For all subgroups studied, consensual unions are characterized by several times the risk of separation of legal marriages. Consensual unions are especially frequent among women in rural areas, women with little education and women who enter unions at young ages. The different prevalence of consensual unions among the different subgroups affects the associations between union stability and various correlates so that it becomes essential to investigate the factors affecting union stability for both consensual unions and legal marriages. In spite of high dissolution rates, remarriage rates in all three countries are also high, as are the percentages of time spent in a union. Hence, the potential effects of voluntary disruption of unions on fertility appear to be modest.  相似文献   
42.
Although many studies have attempted to examine the consequences of Mexico-U.S. migration for Mexican immigrants’ health, few have had adequate data to generate the appropriate comparisons. In this article, we use data from two waves of the Mexican Family Life Survey (MxFLS) to compare the health of current migrants from Mexico with those of earlier migrants and nonmigrants. Because the longitudinal data permit us to examine short-term changes in health status subsequent to the baseline survey for current migrants and for Mexican residents, as well as to control for the potential health selectivity of migrants, the results provide a clearer picture of the consequences of immigration for Mexican migrant health than have previous studies. Our findings demonstrate that current migrants are more likely to experience recent changes in health status—both improvements and declines—than either earlier migrants or nonmigrants. The net effect, however, is a decline in health for current migrants: compared with never migrants, the health of current migrants is much more likely to have declined in the year or two since migration and not significantly more likely to have improved. Thus, it appears that the migration process itself and/or the experiences of the immediate post-migration period detrimentally affect Mexican immigrants’ health.  相似文献   
43.
The social work literature notes increasing problems and controversies related to the interrelationships of teaching, scholarship, and service. The authors present a model of a school and state hospital collaboration project that integrates these educational dimensions. Major components of the model are described, including a philosophy and rationale for collaboration, key features of collaboration, and an overview and evaluation of the project’s three programs. The project demonstrates that teaching, scholarship, and service can interact in a way that enriches social work education.  相似文献   
44.
Teachers in many countries are mandated by law, professional codes, or education authorities to report child abuse and neglect, including child sexual abuse. However, teachers may not receive adequate preparation for such sensitive interventions, as preservice teacher education degrees provide very few or no compulsory courses on child protection and crucially related, lifelong health and well-being issues. So, where do preservice teachers source their information regarding the mandatory reporting of such abuse? This research examines preservice teachers’ professional university education for their sources of information about mandatory reporting and child sexual abuse. A sample cohort of 56 final 4th-year university bachelor of education (primary school) student teachers in Australia identified the sources they used regarding 10 important aspects of child protection. The results suggest that most did not learn about mandatory reporting or child sexual abuse, and others cited sparse and sporadic public media as their primary information source. These findings, building on previous evidence about inadequate or nonexistent preservice mandatory intervention courses in primary teacher education, may guide the design of appropriate training responses enhancing educational professionals’ knowledge, competencies, skills, and efficacies as mandatory reporters of child sexual abuse.  相似文献   
45.
46.
Systematic study of the sociology of organizations is almost absent in both the classical and modern Marxist traditions. Although some recent studies in the Marxist tradition show considerable promise, the field has been dominated by the Weberian perspective. The development of new theory should be informed by the Marxian concepts of (a) labor theory of value, (b) the forces and relations of production, (c) historical development of capitalism, and (d) class structure and class struggle. Bourgeois organizational theory has some serious deficiencies, but there is much of value that can be subsumed under the broader rubric of Marxist political economy. The potential for a Marxist theory of bureaucracy is explored in an examination of managerial strategies to minimize external uncertainties in a monopoly capitalist system, and internal uncertainties arising from the work force. Strategies for controlling the work force include the division of labor, organizational hierarchy, rules and procedures, the uses of secrecy and hoarding of knowledge, and the maintenance of ethnic and sexual divisions in the work force. Further research is needed on (a) differentiating capital accumulation and social control strategies, (b) comparisons between workers in the state and corporate sectors, (c) comparisons between work organization under full range of socialist economies and those in capitalist economies in both manufacturing and government and (d) alternatives for the future.  相似文献   
47.
The burgeoning interest in preschool education is not without its problems. Not least of these are issues relating to an educational philosophy to guide the types of programmes developed in preschools for different groups of children (especially those labelled ‘socio-culturally’ disadvantaged). In addition, there are problems of implementation connected with the financing of the preschool movement, and the provision of adequate numbers of professionally prepared staff. This article attempts to examine critically some of the key issues in enrichment programmes for preschool children, and subsequently to make some policy recommendations.  相似文献   
48.
Abstract One of the most frequently used indirect techniques for deriving estimates of recent fertility from simple questions in censuses and surveys is the 'P/F ratio' method. Availability of detailed birth-history data, as in the World Fertility Survey, and applications of the P/F procedure as a diagnostic tool in the evaluation of the quality of data have led to simplifications and extensions of the original method. This analysis illustrates that when complete maternity histories are available, the P/F procedure can be simplified and made more powerful by (1) calculation of P/F values from cohort-period fertility rates and (2) use of two further indexing variables, namely duration since first marriage and duration since first birth, in addition to age. More generally, the paper indicates that a set of P/F values is only one of a battery of measures which aid in the analysis of trends and errors in data from maternity histories. Illustrative examples are given from various analyses of world Fertility Survey data. Howard Goldberg has been independently pursuing an investigation of the P/F procedure by marriage duration at the Office of Population Research (Princeton University), and we have profited from recent discussions with him. We would also like to acknowledge useful comments and criticisms on earlier drafts from James Trussell and Kenneth Hill.  相似文献   
49.
Asthma is an important chronic disease of childhood. An intervention programme for managing asthma was designed on principles of self-regulation and was evaluated by a randomized longitudinal study.The study focused on several outcomes, and, typically, missing data remained a pervasive problem. We develop a pattern-mixture model to evaluate the outcome of intervention on the number of hospitalizations with non-ignorable dropouts. Pattern-mixture models are not generally identifiable as no data may be available to estimate a number of model parameters. Sensitivity analyses are performed by imposing structures on the unidentified parameters.We propose a parameterization which permits sensitivity analyses on clustered longitudinal count data that have missing values due to non-ignorable missing data mechanisms. This parameterization is expressed as ratios between event rates across missing data patterns and the observed data pattern and thus measures departures from an ignorable missing data mechanism. Sensitivity analyses are performed within a Bayesian framework by averaging over different prior distributions on the event ratios. This model has the advantage of providing an intuitive and flexible framework for incorporating the uncertainty of the missing data mechanism in the final analysis.  相似文献   
50.
In Somalia, many organisations have supported Traditional Birth Attendant (TBA) training as a strategy to reduce maternal mortality and morbidity. An evaluation was undertaken to assess the effectiveness of this intervention and its potential as a component of a national strategy for safe motherhood in Somalia. The study examined the TBAs actual influence in improving a womans chances of surviving life-threatening complications of pregnancy and delivery. The results of the study showed that despite a high standard in TBA training, when dealing with complications such as prolonged labour, haemorrhage or infection, families prefer traditional practices. Families are unlikely to value the opinion of the TBA in making a decision to refer a woman for emergency obstetric care. The report concludes that TBA programmes which exist in isolation of other interventions are unlikely to have any significant effect on maternal mortality although clean deliveries and ante-natal care pectised by trained TBAs may reduce maternal morbidity and perinatal mortality and morbidity.  相似文献   
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