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21.
These studies explored attitudes toward maternal culpability in cases of alleged fetal abuse. In experiment one, general culpability for the use of various substances during pregnancy was assessed as well as the impact of other potentially relevant factors. One hundred and twenty students completed the survey. Participants overwhelmingly supported treating drug use by pregnant women as a criminal offense. With regard to the assessment of more specific questions, the lack of consensus regarding what factors effect culpability is striking. Experiment two examined the possible impact of the mothers' race (White or Black) and social class (Poor or Middle class) on the assessment of culpability. One hundred and sixty-four community members responded to a survey sent to randomly selected persons in upstate South Carolina. The results indicate that at least in response to a brief, written, case scenario, neither race nor social class make a large impact on participants' sanction recommendations.  相似文献   
22.
This paper deals with small area indirect estimators under area level random effect models when only area level data are available and the random effects are correlated. The performance of the Spatial Empirical Best Linear Unbiased Predictor (SEBLUP) is explored with a Monte Carlo simulation study on lattice data and it is applied to the results of the sample survey on Life Conditions in Tuscany (Italy). The mean squared error (MSE) problem is discussed illustrating the MSE estimator in comparison with the MSE of the empirical sampling distribution of SEBLUP estimator. A clear tendency in our empirical findings is that the introduction of spatially correlated random area effects reduce both the variance and the bias of the EBLUP estimator. Despite some residual bias, the coverage rate of our confidence intervals comes close to a nominal 95%.  相似文献   
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24.
Cet étude, basée sur les données du recensement canadien, examine la ségrégation occupationelle et les différences dues au genre dans la distribution d'habileté professionnelle entre les annees 1961 et 1986. L'apprentissage à long terme à de niveaux supérieurs d'habileté professionnelle caractérise autant le marché du travail féminin que masculin. Cependant, la magnitude de cet apprentissage est plus grande pour les femmes que pour les hommes, notamment entre les années 1981 et 1986 lorsque la distribution des habiletés professionnelles des hommes à changés très peu. En dépit de la direction de ces changements, il est peu probable que les femmes se retrouvent dans les occupations à niveaux supérieurs d'habileté comparé aux hommes. La main d'oeuvre féminine se retrouve done aux niveaux moyens d'habileté professionnelle comparéà la main d'oeuvre masculine, et ceci est en grande partie attribuéà la concentration féminine dans les occupations de bureau inférieures. Quand la comparaison entre les femmes et les hommes se limite à l'intérieur des niveaux de travail comme le travail de bureau, le travail ouvrier et le travail dans les secteurs de service, la tendance de retrouver les femmes dans les niveaux inferieurs d'habileté professionnelle devient plus prononcée. Using Canadian census data, this study examines occupational segregation and sex differences in the distribution of skill between 1961–1986. Skill upgrading over time characterizes both the female and male labour force. However, the magnitude of skill upgrading is larger for women than men, particularly between 1981 and 1986 when the skill distributions of men change very little. Despite these upgrading trends, women are less likely to be in higher skilled occupations than are men. Instead, the female labour force more than the male labour force is found in the middle levels of skill, largely as the result of their concentration in lower white collar occupations. When comparisons are made within white collar, blue collar and service sectors, the employment of women in less skilled occupations becomes far more evident.  相似文献   
25.
Cohabitation has become part of the pathway toward marriage. Prior work focuses on expectations to marry and has ignored cohabitation. Although most young adults are not replacing marriage with cohabitation, but instead cohabit and then marry, it is important to study adolescents’ joint expectations to cohabit as well as marry. Our analyses draw on recently collected data from the Toledo Adolescent Relationships Study (N = 1,293). We find that adolescents are less certain about their cohabitation than marriage expectations. Dating and sexual experience, traditional values, prosocial activities, and parents influence adolescents’ union formation expectations. The findings from this work suggest that adolescents are including cohabitation as part of their future life trajectories but rarely envision cohabitation as substituting for marriage.  相似文献   
26.
Research into attitudes towards the poor and lay explanations for poverty have heen primarily concerned with the structure and determinants of these attitudes and explanations. Whereas a number of variables — education, religion, ethnic group — have been shown to relate to explanations for poverty, there have only been a few cross-cultural studies. This study set out to compare the explanations adolescents gave for poverty in two West Indian islands — the relatively wealthy island of Barbados and the relatively poor island of Dominica. The overall economic development/prosperity of the two islands, and the extent and visibility of economic inequality between the two islands appeared to account for the numerous national differences. These results are discussed in terms of the social, political and historical differences between the two islands.  相似文献   
27.
Agnew's General Strain Theory (GST) has both revived and advanced strain theory. It has recently been applied to topics ranging from gender differences in delinquency to differences in community crime rates. Tests of GST are now focusing on the intermediate variables that fall between GST and delinquency, such as anger and social support, but these tests have produced varying results. This paper adds to GST literature by empirically analyzing whether social support moderates individuals' responses to strain and whether this moderating effect varies by gender. Testing is conducted using data from wave six of the National Youth Survey (NYS). Results provide support for GST and suggest that there are gender differences in the types and levels of strain experienced during the late teens. Further, there is evidence to support the hypothesis that social support does moderate females' responses to certain types of strain.  相似文献   
28.
The prevalence of casual sexual activity among teens and emerging adults has led to much public attention. Yet limited research has investigated whether the number of casual sexual partners per year changes as heterosexual men and women transition from adolescence into emerging adulthood. We considered the influence of social context and life course factors on the number of casual sex partners. We examined four waves of interviews from the Toledo Adolescent Relationships Study (TARS) and used negative binomial growth curve models to investigate patterns of change in the number of casual sex partners (N = 1,196) ages 15 to 22. Men and women both reported increases in the number of casual sex partners over time and did not differ from each other in the rate of change over time. In all, 40% of respondents reported a recent casual sex partner at age 22. Number of prior dating relationships, education status, substance use, and perceptions of peer sexual behavior significantly influenced the number of casual sex partners. Emerging adults who did not complete high school, compared to those enrolled in four-year degree programs, reported significantly more partners. The findings contribute to research on intimate relationships and provide insights for programs targeting emerging adults.  相似文献   
29.
Opsonophagocytic killing assays (OPKA) are routinely used for the quantification of bactericidal antibodies in blood serum samples. Quantification of the OPKA readout, the titer, provides the basis for the statistical analysis of vaccine clinical trials having functional immune response endpoints. Traditional OPKA titers are defined as the maximum serum dilution yielding a predefined bacterial killing threshold value, and they are estimated by fitting a dose‐response model to the dilution‐killing curve. This paper illustrates a novel definition of titer, the threshold‐free titer, which preserves biological interpretability while not depending on any killing threshold or on a postulated shape of the dose‐response curve. These titers are shown to be more precise than the traditional threshold‐based titers when using simulated and experimental group B streptococcus OPKA experimental data. Also, titer linearity is shown to be not measurable when using threshold‐based titers, whereas it becomes measurable using threshold‐free titers. The biological interpretability and operational characteristics demonstrated here indicate that threshold‐free titers are an appropriate tool for the routine analysis of OPKA data. Copyright © 2015 John Wiley & Sons, Ltd.  相似文献   
30.
The Impact of Family Transitions on Child Fostering in Rural Malawi   总被引:1,自引:0,他引:1  
Despite the frequency of divorce and remarriage across much of sub-Saharan Africa, little is known about what these events mean for the living arrangements of children. We use longitudinal data from rural Malawi to examine the effects of family transitions on the prevalence and incidence of child fostering, or children residing apart from their living parents. We find that between 7 % and 15 % of children aged 3–14 are out-fostered over the two-year intersurvey period. Although divorce appears to be a significant driver of child fostering in the cross-sectional analysis, it is not significantly associated with the incidence of out-fostering. In contrast, maternal remarriage has both a lagged and an immediate effect on the incidence of out-fostering. Furthermore, the likelihood of out-fostering is even higher among children whose mother remarried and had a new child during the intersurvey period. Using longitudinal data collected from living mothers rather than from children’s current foster homes offers new insights into the reasons children are sent to live with others besides their parents.  相似文献   
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