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   354篇
  免费   6篇
管理学   114篇
人口学   23篇
丛书文集   1篇
理论方法论   19篇
综合类   2篇
社会学   188篇
统计学   13篇
  2023年   3篇
  2020年   6篇
  2019年   7篇
  2018年   2篇
  2017年   10篇
  2016年   7篇
  2015年   9篇
  2014年   10篇
  2013年   53篇
  2012年   25篇
  2011年   26篇
  2010年   18篇
  2009年   14篇
  2008年   20篇
  2007年   14篇
  2006年   4篇
  2005年   10篇
  2004年   9篇
  2003年   3篇
  2002年   13篇
  2001年   9篇
  2000年   10篇
  1999年   4篇
  1998年   5篇
  1997年   4篇
  1996年   4篇
  1995年   1篇
  1994年   5篇
  1993年   6篇
  1992年   2篇
  1991年   3篇
  1990年   4篇
  1989年   4篇
  1988年   4篇
  1987年   3篇
  1986年   3篇
  1985年   2篇
  1984年   2篇
  1983年   1篇
  1982年   3篇
  1981年   1篇
  1980年   6篇
  1979年   2篇
  1978年   1篇
  1977年   2篇
  1976年   2篇
  1974年   2篇
  1972年   1篇
  1970年   1篇
排序方式: 共有360条查询结果,搜索用时 0 毫秒
71.
72.
We draw on collective efficacy theory to extend a contextual model of early adolescent sexual behavior. Specifically, we hypothesize that neighborhood structural disadvantage--as measured by levels of concentrated poverty, residential instability, and aspects of immigrant concentration--and diminished collective efficacy have consequences for the prevalence of early adolescent multiple sexual partnering. Findings from random effects multinomial logistic regression models of the number of sexual partners among a sample of youth, age 11 to 16, from the Project on Human Development in Chicago Neighborhoods (N = 768) reveal evidence of neighborhood effects on adolescent higher-risk sexual activity. Collective efficacy is negatively associated with having two or more sexual partners versus one (but not zero versus one) sexual partner. The effect of collective efficacy is dependent upon age: The regulatory effect of collective efficacy increases for older adolescents.  相似文献   
73.
Several anthropological explanation of why North American Indian berdaches were riduculed are considered and rejected in favor of the proposal that berdaches were laughed at largely in the context of traditional joking relationships. Consequently, reports that Indians ridiculed berdaches need not be interpreted as evidence that they held negative views of homosexuality.  相似文献   
74.
We used data from the Fragile Families and Child Wellbeing Study to examine how couple relationship quality and parental engagement are linked over children's early years-when they are infants, toddlers, and preschoolers. Our sample included 1,630 couples that were coresident over years 1 to 3 and 1,376 couples that were coresident over years 3 to 5 (1,196 over both periods). Overall, we found that better relationship quality predicted greater parental engagement for both mothers and fathers-especially in the infant to toddler years; in contrast, we found little evidence that parental engagement predicted future relationship quality. Married and cohabiting couples were generally similar in how relationship quality and parenting were linked.  相似文献   
75.
A review of empirical literature reveals improvements in service utilization and outcomes for women when substance abuse and child welfare services are integrated. The increased use of substances by women involved in the child welfare system has resulted in a call for integrated, coordinated, evidence-based practices. Since the late 1990s, specific system- and service-level strategies have been developed to coordinate and integrate the provision of substance abuse and child welfare services such that women are remaining in treatment longer and are more likely to reduce substance use and be reunited with their children. The strategies reviewed provide useful guidelines for developing components of effective, evidence-based programs for substance-involved women in the child welfare system.  相似文献   
76.
The growth in the veterans population parallels the graying of America, accompanied by an increasing need for health care and mental health services from the U.S. Department of Veterans Affairs (VA) health care system. With the incidence of posttraumatic stress disorder (PTSD) rising in veterans of the wars in Iraq and Afghanistan and the already strained mental health resources in use by veterans with persistent PTSD from previous wars, the VA mental health system is and will continue to be in overload. In addition, recent research has noted an increased incidence of dementia in veterans with PTSD. The VA's long-term care facilities cannot meet their current demands, nevermind provide support for veterans with cognitive deficits who can no longer be cared for at home. It is imperative that immediate measures be taken to strengthen resources for research, manpower, and training to accommodate the future mental health needs of our aging veterans.  相似文献   
77.
The antecedents, correlates, and consequences of adolescent employment were investigated in a sample of 251 low‐income, African American youth that were followed since birth. The youth (age: M at preschool = 4.89, SD= .70; M at adolescence = 16.44, SD= .66; M at transition to adulthood = 19.36, SD= .76; and M at early adulthood = 27.67, SD= .75) were the firstborn children of African American teenage mothers who gave birth in Baltimore in the 1960s. Analyses examined the antecedents and correlates of age of entry into employment and stability of employment during adolescence. The associations of adolescent work experiences with subsequent adult education and employment outcomes also were considered. Findings indicate that among this sample of low‐income, African American youth, those who repeated a grade in school during middle childhood were more likely to enter the workforce at later ages than their peers who did not repeat a grade. The small subset of adolescents who never worked (n= 12) appear to be markedly more disadvantaged than their peers who worked. At the transition to adulthood, adolescents who entered the workforce earlier were more likely to complete high school than their peers. In addition, stable employment during the adolescent years had more beneficial effects on young men's chances of attending college than young women's postsecondary education. This pattern of findings is consistent with ethnographic accounts of adolescent employment among poor, minority, urban youth.  相似文献   
78.
We examine the effects of mothers' strategies of combining employment and welfare receipt during the first 3 years of their child's life on the child's cognitive development, behavior problems, and home learning environment at ages 5 to 6. We compare the child outcomes of those mothers who were continuously employed and received no welfare with (a) those who worked some or all of the 3 years and also received public assistance and (b) those who were totally dependent on public assistance. We studied children in single‐parent families (N= 1271 ) living below 200% of the poverty threshold using data from the National Longitudinal Survey of Youth—Child Supplement. No negative association was found on most child outcomes with a mother's employment whether or not it was combined with public assistance. However, mothers' not working at all and receiving financial support solely from AFDC was associated with negative child outcomes. We discuss the implications of these findings for the possible effects of the new welfare laws on families and young children.  相似文献   
79.
As part of the celebration of the 40th anniversary of the Society for Risk Analysis and Risk Analysis: An International Journal, this essay reviews the 10 most important accomplishments of risk analysis from 1980 to 2010, outlines major accomplishments in three major categories from 2011 to 2019, discusses how editors circulate authors’ accomplishments, and proposes 10 major risk-related challenges for 2020–2030. Authors conclude that the next decade will severely test the field of risk analysis.  相似文献   
80.
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