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51.
A large proportion of youth who become street‐involved have experience in foster care, and our sample of 92 street‐involved youth, aged 14–18 years, all had foster care experience. We report on (i) instability of guardians and home from birth to street involvement; (ii) the connection between perceptions about foster care and measures of well‐being; and (iii) the implications of these findings for understanding street‐involved youth and the role of foster care in their life. The average number of transitions per youth from birth to mid‐teens was nine. Youth with experience in permanent care first lived away from biological parents at age 8.5 years, and for those with temporary care experience, it was age 10 years. Foster care was one of many living situations and one of several sources of caregivers. If participants were satisfied with foster care, they were more likely to be currently hopeful and happy. Participants who experienced positive influences from at least one long‐term caregiver tended to have other positive caregiver experiences, and those with negative influences were more likely to also have a positive relationship with a female caregiver. Foster care was one of several ‘way stations’ in their lives, one whose meaning needs further study.  相似文献   
52.
In an experimental study two levels of oculomotor load were induced via optical trial lenses. Trapezius muscle activity was measured with bipolar surface electromyography and normalized to a submaximal contraction. Sixty-six subjects with a median age of 36 (range 19-47, std 8) viewed a black and white Gabor grating (5 c/deg) for two 7-min periods monocularly through a 0 D lens or binocularly through -3.5 D lenses. The effect of time was separately regressed to EMG in two different subgroups of responders: a High-Oculomotor-Load (HOL) and a Low-Oculomotor-Load (LOL) group. A linear regression model was fitted on group level with exposure time on the x-axis and normalized trapezius muscle EMG (%RVE) on the y-axis. The slope coefficient was significantly positive in the -D blur condition for only the HOL subgroup of responders: 0.926 + Time(min 1-7) × 0.088 (p = 0.002, r(2)=0.865). There was no obvious sign of this activity to level off or to stabilize. These results suggest that professional information technology users that are exposed to a high level of oculomotor load, during extended times, are at an increased risk of exhibiting an increased trap.m. activity.  相似文献   
53.
Researchers have shown that stigma is a fundamental determinant of behavior, well-being, and health for many marginalized groups, but sex workers are notably absent from their analyses. This article aims to fill the empirical research gap on sex workers by reviewing the mounting evidence of stigmatization attached to sex workers’ occupation, often referred to as “prostitution” or “whore” stigma. We give special attention to its negative effect on the working conditions, personal lives, and health of sex workers. The article first draws attention to the problem of terminology related to the subject area and makes the case for consideration of prostitution stigmatization as a fundamental cause of social inequality. We then examined the sources of prostitution stigma at macro, meso, and micro levels. The third section focuses on tactics sex workers employ to manage, reframe, or resist occupational stigma. We conclude with a call for more comparative studies of stigma related to sex work to contribute to the general stigma literature, as well as social policy and law reform.  相似文献   
54.
This paper tests the theoretically assumed relationship between the parliamentary presence of radical right parties (RRPs) and anti-immigration attitudes over time. Data come from six rounds of the European Social Survey between 2002 and 2012. Using multi-level models with applications for repeated cross-sectional data, the study examines the implications of changes tied to the political advancements of the radical right with a focus on three possible scenarios: people's attitudes about immigration have generally become more negative, opposition towards immigration has become more dependent on immigrants' ethnicity, and attitudes towards immigration have become more polarised. Contrary to expectations, it is found that neither the presence, the representational strength, nor the nationalistic framing of an RRP affect opposition towards immigration over time. Thus, the conclusion is that the RRPs, so far, have not driven anti-immigration attitudes in Europe. Possible explanations for these results are discussed in the concluding section.  相似文献   
55.
This paper contributes to the understanding of the factors that are significant for returning to work, and identifies factors that might be used early on in a period of sick leave to discern whether people are likely to work again. In the design, the multivariate Partial Least Squares (PLS) of Latent Structures method was used to analyse information from a questionnaire containing socio-demographic items, and information on symptoms, consequences on daily life, expectations and psychosocial factors. Data about the incidence of sickness over a four-year period was included. 121 adults aged 18-64 years on sick leave participated, irrespective of their diagnoses. A reliable prediction of a return to work required the combination of many factors: individual psychosocial instruments are not useful when considered in isolation. The strongest predictive factors for a return to work concern the individuals' expectations, the number of days of sick leave taken in the past, somatic disorders, and a high level of life satisfaction and sense of coherence. Many factors influence the outcome for people on sick leave: PLS analysis demonstrated that a multivariate approach using this method could predict the long-term outcome early on in a period of sick leave.  相似文献   
56.
EDUCATION     
This paper illustrates how multivariate spectral analysis can be used to analyze complex, dynamic, business systems. Important temporal aspects of multiple time series are captured in the frequency domain by the coherence, phase, and gain statistics. A computer simulation of a time domain model produces sample results which demonstrate how the timing relations between two series can be reversed when the effects common to both series are partialled out. Finally, an empirical multivariate analysis of beef prices is used to determine the timing relations among prices at different levels of the production-distribution system.  相似文献   
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