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   183篇
  免费   7篇
管理学   18篇
民族学   2篇
人口学   17篇
丛书文集   1篇
理论方法论   22篇
综合类   6篇
社会学   117篇
统计学   7篇
  2024年   1篇
  2023年   1篇
  2022年   2篇
  2021年   2篇
  2020年   5篇
  2019年   8篇
  2018年   6篇
  2017年   12篇
  2016年   6篇
  2015年   10篇
  2014年   2篇
  2013年   25篇
  2012年   13篇
  2011年   5篇
  2010年   6篇
  2009年   5篇
  2008年   6篇
  2007年   6篇
  2006年   8篇
  2005年   7篇
  2004年   4篇
  2003年   8篇
  2002年   5篇
  2001年   4篇
  2000年   5篇
  1999年   3篇
  1997年   2篇
  1996年   3篇
  1995年   1篇
  1994年   2篇
  1993年   3篇
  1992年   4篇
  1991年   2篇
  1990年   1篇
  1989年   1篇
  1987年   1篇
  1985年   2篇
  1981年   2篇
  1970年   1篇
排序方式: 共有190条查询结果,搜索用时 31 毫秒
161.
162.
This study examined the effects of reported maternal and paternal support, psychological control, and spanking on externalizing behavior of toddler boys. Questionnaires were administered to both parents of 104 two‐parent families with a 3‐year‐old son. Both maternal and paternal psychological control was related to boys' externalizing behavior. Interaction effects were found, in that the association between maternal spanking and boys' externalizing behavior was stronger when levels of maternal support were high. High levels of paternal support strengthened the association between maternal support and boys' externalizing behaviors. Results suggest that the associations between specific parenting dimensions and children's externalizing behavior need to be considered within the context of other parenting dimensions that are displayed within the family.  相似文献   
163.
This prospective, longitudinal study investigated the moderating role of pubertal timing on reciprocal links between adolescent appraisals of parent–child relationship quality and girls' (N=1,335) and boys' (N=1,203) cigarette and alcohol use across a 12‐month period. Reciprocal effects were found between parent–child relations and on‐time maturing boys and girls' cigarette and alcohol use, after estimating stability in these constructs across time. Parent–child relationship quality was associated with increased alcohol use 12 months later for early maturing girls. Cigarette and alcohol use were associated with increased problems in the parent–child relationship for late maturing girls. No effects were observed for early and late maturing boys in the pathways between parent–child relationship quality and substance use. Pubertal timing moderated the pathway linking parent–child relationship quality with cigarette use 1 year later such that the association was stronger for late maturing girls compared with early and on‐time maturing girls. The findings indicate interplay between the psychosocial aspects of maturation, family relationships, and adolescent substance use and highlight possible gender‐specific influences.  相似文献   
164.
Although there has been some increased attention to the issue of homelessness and homeless shelter services, little effort has been made to understand the operation of rural homeless shelters. This situation persists despite decades of effort showing that the rural environment provides a very different context for the delivery of services than an urban environment. This study hypothesized that contextual differences in rural environments would produce various strategies of service delivery among homeless shelters. A typology of rural environments was created. Homeless shelters within each of four cells of the typology were selected. Comparative case study analysis provided partial support for the hypothesis.  相似文献   
165.
Epidemiology studies increasingly examine multiple exposures in relation to disease by selecting the exposures of interest in a thematic manner. For example, sun exposure, sunburn, and sun protection behavior could be themes for an investigation of sun-related exposures. Several studies now use pre-defined linear combinations of the exposures pertaining to the themes to estimate the effects of the individual exposures. Such analyses may improve the precision of the exposure effects, but they can lead to inflated bias and type I errors when the linear combinations are inaccurate. We investigate preliminary test estimators and empirical Bayes type shrinkage estimators as alternative approaches when it is desirable to exploit the thematic choice of exposures, but the accuracy of the pre-defined linear combinations is unknown. We show that the two types of estimator are intimately related under certain assumptions. The shrinkage estimator derived under the assumption of an exchangeable prior distribution gives precise estimates and is robust to misspecifications of the user-defined linear combinations. The precision gains and robustness of the shrinkage estimation approach are illustrated using data from the SONIC study, where the exposures are the individual questionnaire items and the outcome is (log) total back nevus count.  相似文献   
166.
This article aims to provide more insight into advantages and challenges of conducting action research with the intention to improve health care. Action research is distinctive in the sense that the researcher has a dual role as both researcher and implementer of the program studied. The article is based on two Norwegian action-oriented studies that aimed to explore the potential role of online self-help groups for breast cancer patients and adolescents with mentally ill parents respectively. We argue that action research can contribute both to the generation of knowledge, as well as a greater sense of ownership to the program among those who are intended to use it. Nonetheless, a potential conflict between the researcher's pursuit of data, and ethical considerations became apparent in the contexts studied here. Bearing these challenges in mind, we still conclude that action research offers an important contribution for the further development of health care services.  相似文献   
167.
With the increase in special needs adoption, there is growing concern about the adjustment of these children and families beyond legalization. The purpose of this study was to explore in greater depth the use of intensive family preservation services with adoptive families and the factors related to the family’s ability to stay intact beyond services. Multiple regression analyses were used to determine factors that were predictive of the family’s ability to remain intact at 6 and 12 months post services. Potential predictors of family intactness included child characteristics, family characteristics, previous placement history and service characteristics. Results at 6 months found no significance in the full model; however, the individual factors of ethnic origin of the child, full‐time employment of the primary parent and initial placement reason were significant predictors of family intactness. At 12 months post services, the full model was highly significant, with service characteristics being the greatest predictor of the family’s ability to remain intact.  相似文献   
168.
This paper raises issues involved in doing research in partnership with Native American communities. The paper explores methodological concerns such as: access and cooperation, protocol, culturally appropriate methods, and ineffective methods. Integral to this discussion are the rights of the Native American communities and the responsibilities of the researchers. Specific topics include: getting started on a project, control of the research project, negotiating the release of the information gathered during the project, recognition for involvement in the research, and other ethical issues.  相似文献   
169.
The 2008 Health Indicators Project surveyed a probability sample (N = 1,870) of New York City senior center participants. Attendees of racially and ethnically diverse and nondiverse senior centers were compared across 5 domains: demographics; health and quality of life; social support networks; neighborhood perceptions and engagement; health service access/utilization. Although homogeneous and diverse center participants demonstrate similar health and quality-of-life outcomes, those from diverse centers demonstrate greater risk of social isolation, receive less family support, and more likely seek medical care from hospitals or community clinics. Implications and future directions for research, practice and policy are discussed.  相似文献   
170.
Time spent eating and exercising can impact quality of life measures such as general health and risk for obesity. This article links data from the American Time Use Study and the Eating and Health Module to explore exercise and eating patterns for varying age groups, over different times of day, and by self-reported health status. Younger Americans who did some exercise were more likely to engage in higher impact sports. Older Americans who exercised were more likely to do so in the morning. Americans who reported being in excellent health spent more time exercising than other self-reported health groups, regardless of their sex or age.  相似文献   
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