首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1159篇
  免费   83篇
  2023年   8篇
  2022年   18篇
  2021年   21篇
  2020年   27篇
  2019年   38篇
  2018年   52篇
  2017年   84篇
  2016年   59篇
  2015年   36篇
  2014年   47篇
  2013年   133篇
  2012年   75篇
  2011年   84篇
  2010年   44篇
  2009年   55篇
  2008年   65篇
  2007年   60篇
  2006年   52篇
  2005年   44篇
  2004年   35篇
  2003年   34篇
  2002年   39篇
  2001年   11篇
  2000年   12篇
  1999年   11篇
  1998年   16篇
  1997年   12篇
  1996年   6篇
  1995年   7篇
  1994年   4篇
  1993年   3篇
  1992年   6篇
  1991年   2篇
  1989年   2篇
  1988年   2篇
  1987年   3篇
  1986年   4篇
  1985年   3篇
  1984年   2篇
  1982年   4篇
  1980年   3篇
  1977年   2篇
  1976年   4篇
  1975年   2篇
  1974年   1篇
  1972年   1篇
  1970年   2篇
  1969年   1篇
  1968年   1篇
  1955年   1篇
排序方式: 共有1242条查询结果,搜索用时 15 毫秒
141.
Various aspects of parental work schedules affect the opportunities and constraints that parents encounter when arranging care for their children. This study examined the extent to which the combination of couples’ work schedules was associated with their use of different types of child care, focusing on parental, formal, and informal child care. We considered multiple dimensions of couples’ work schedules, namely, the timing of work, schedule flexibility, and home-based telework. Data from a recent Dutch survey were used, including information about 1599 dual-earner couples with children aged 0–6 years. The results indicated that paid work during nonstandard hours increased the amount of parental child care that was provided by one parent while the other parent was working, whereas work during evenings, nights, and weekends decreased the likelihood of using both formal and informal child care. Results further revealed gender differences for nonstandard hours and schedule flexibility. We found stronger effects of mothers’ work schedules, indicating that a gender-neutral approach to parental work is not justified. These results indicate that the timing of parental work is important to consider when examining not only parental child care but also formal and informal child-care use. We provide recommendations for future research, specifically regarding the possible consequences for parental well-being.  相似文献   
142.
The purpose of this study was to determine the prevalence and individual risk factors of people who trade or sell sex among sexually active individuals seeking HIV and sexually transmitted infection (STI) testing. Using electronic agency records, an analysis of the characteristics of 5,029 youth and adults who voluntarily obtained HIV and STI testing was conducted. Multiple imputation procedures for missing data from 3 variables and logistic regression were conducted. A total of 128 individuals reported having traded sex. Nine variables had statistically significant associations with trading sex. Individuals who identified as White and female had lesser odds of trading sex, whereas individuals who were transgender, were living in a shelter, had been sexually assaulted, had a previous STI, had high-risk sex, or used drugs had greater odds of trading sex. Elevated levels of high-risk behavior in addition to sexual trauma should be considered in intervention research and community health practice. Implications for service providers and researchers are discussed.  相似文献   
143.
In the 1980s and early 1990s, more than 50,000 Iranian refugees moved to Sweden. The Swedish state attended to their immediate needs, providing housing, language training, and other types of support. Moreover, these migrants had almost immediate access to all the benefits of the Swedish welfare state including affordable healthcare, unemployment insurance, and free education up to and including the tertiary level. Despite the opportunities available to them in Sweden, many Iranian refugees have faced challenges, especially when trying to secure meaningful work. One of the strategies they have used to overcome barriers to entering the labor market is to leave Sweden for onward destinations which are seen as having relatively more to offer. This study explores the onward migration of Iranians from Sweden by way of a two-step mixed methods approach: in the first step, population register data is used to determine how onward migrants differ from those Iranians who stay in Sweden. In the second step, information from life history interviews conducted with onward migrants in London and Toronto is used to understand what motivates individuals to leave Sweden. Overall, the study finds that highly educated Iranians who have struggled to find employment in Sweden are the most likely to move on. Their precise motivations for doing so, however, are nuanced and complex and relate to more than just economic factors.  相似文献   
144.
Young Black gay/bisexual men (YBGBM) are affected by contextual stressors—namely syndemic conditions and minority stress—that threaten their health and well‐being. Resilience is a process through which YBGBM achieve positive psychosocial outcomes in the face of adverse conditions. Self‐efficacy, hardiness and adaptive coping, and social support may be important resilience factors for YBGBM. This study explores different profiles of these resilience factors in 228 YBGBM in New York City and compares profiles on psychological distress, mental health, and other psychosocial factors. Four profiles of resilience were identified: (a) Low self‐efficacy and hardiness/adaptive coping (23.5%); (b) Low peer and parental support (21.2%); (c) High peer support, low father support (34.5%); and (d) High father and mother support, self‐efficacy, and hardiness/adaptive coping (20.8%). YBGBM in profile 1 scored markedly higher on distress (= .74) and lower on mental health functioning (= .93) compared to men in the other profiles. Results suggest that self‐efficacy and hardiness/adaptive coping may play a more important role in protecting YBGBM from risks compared to social support and should be targeted in interventions. The findings show that resilience is a multidimensional construct and support the notion that there are different patterns of resilience among YBGBM.  相似文献   
145.
Jurors often have difficulty evaluating eyewitness testimony. Counterfactual thinking is a type of mental simulation that informs causal inference. Encouraging jurors to think counterfactually about eyewitness factors may sensitize them to these factors' causal influence on eyewitness identification and testimony accuracy, improving their overall judgments (such as verdicts). One hundred twenty‐one undergraduate participants were randomly assigned to read a scenario containing either high‐quality or low‐quality eyewitness evidence and to evaluate eyewitness factors adopting either their default or a counterfactual mindset via a question‐order manipulation. Logistic regressions and analyses of variance revealed that a counterfactual mindset lowered perceptions of eyewitness accuracy and guilty verdicts (compared with the default mindset) when the evidence was poor; a counterfactual mindset, however, did not increase perceptions of accuracy and guilty verdicts when evidence was strong. We discuss possible mechanisms underlying these effects and identify several potential avenues for future research.Copyright © 2016 John Wiley & Sons, Ltd.  相似文献   
146.
ABSTRACT

Social, emotional, and executive function systems of the brain change greatly during adolescence as the result of biopsychosocial influences. These factors alter the course of adolescent behavior through effects on the component processes of social behavior. Specifically, the influences of chronic stress, social and economic adversity, alcohol and drugs, and brain injury as well as parental buffering and support, increased neural connectivity and mentalizing resources, and enriched environments can impede or promote maturation of the social and executive brain networks that regulate social adjustment and emotional expression. Hence, there are many early “windows of opportunity” to affect the biological and neurocognitive foundations of adolescent social executive functions such as empathy, theory of mind, self-monitoring, and social emotions.  相似文献   
147.
Although moderate to severe traumatic brain injury (TBI) leads to facial affect recognition impairments in up to 39% of individuals, protective and risk factors for these deficits are unknown. The aim of the current study was to examine the effect of sex on emotion recognition abilities following TBI. We administered two separate emotion recognition tests (one static and one dynamic) to 53 individuals with moderate to severe TBI (females = 28) and 49 demographically matched comparisons (females = 22). We then investigated the presence of a sex-by-group interaction in emotion recognition accuracy. In the comparison group, there were no sex differences. In the TBI group, however, females significantly outperformed males in the dynamic (but not the static) task. Moreover, males (but not females) with TBI performed significantly worse than comparison participants in the dynamic task. Further analysis revealed that sex differences in emotion recognition abilities within the TBI group could not be explained by lesion location, TBI severity, or other neuropsychological variables. These findings suggest that sex may serve as a protective factor for social impairment following TBI and inform clinicians working with TBI as well as research on the neurophysiological correlates of sex differences in social functioning.  相似文献   
148.
149.
150.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号