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   13909篇
  免费   299篇
  国内免费   2篇
管理学   1601篇
民族学   124篇
人才学   3篇
人口学   1828篇
丛书文集   70篇
理论方法论   1215篇
综合类   301篇
社会学   7075篇
统计学   1993篇
  2020年   152篇
  2019年   250篇
  2018年   761篇
  2017年   861篇
  2016年   620篇
  2015年   208篇
  2014年   260篇
  2013年   1739篇
  2012年   442篇
  2011年   763篇
  2010年   622篇
  2009年   543篇
  2008年   539篇
  2007年   654篇
  2006年   261篇
  2005年   325篇
  2004年   329篇
  2003年   266篇
  2002年   240篇
  2001年   279篇
  2000年   238篇
  1999年   210篇
  1998年   168篇
  1997年   157篇
  1996年   164篇
  1995年   144篇
  1994年   149篇
  1993年   145篇
  1992年   141篇
  1991年   135篇
  1990年   148篇
  1989年   137篇
  1988年   132篇
  1987年   138篇
  1986年   110篇
  1985年   145篇
  1984年   144篇
  1983年   140篇
  1982年   118篇
  1981年   80篇
  1980年   105篇
  1979年   108篇
  1978年   94篇
  1977年   76篇
  1976年   75篇
  1975年   85篇
  1974年   83篇
  1973年   59篇
  1972年   53篇
  1967年   51篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
This study assessed the playgrounds of developmental day care centers and compared them with playgrounds of regular certified day care centers. Twenty playgrounds, randomly selected from the listing of developmental day centers, were compared with a matched sample of 20 playgrounds from certified day care centers in one state. A revision of Frost's Playground Rating System (1978b) was employed to rate the two groups of playgrounds on content, safety, and function. Data were analyzed using an analysis of variance technique. The quality of developmental day center playgrounds for exceptional children was inferior to that of regular day care center playgrounds in terms of playground content. No significant differences were noted on safety or function.  相似文献   
992.
A theory of ethnic antagonism: the split labor market   总被引:9,自引:0,他引:9  
  相似文献   
993.
994.
Though often conflated, informal physical exercise and organized athletic participation have very different implications for adolescent sexual risk outcomes. The purpose of this research is to disaggregate strenuous exercise from sports, examine how each is associated with sexual risk, and explain the observed differences using the conceptual lens of cultural resource theory. Using a nationally representative sample of over 16,000 public and private high school students, we employ logistic regression to test hypotheses about the gender-specific and race-specific effects of strenuous exercise and athletic participation on adolescent sexual risk behavior. The results show that both forms of physical activity buffer sexual risk for girls. Strenuous exercise is associated with increased odds of sexual risk for boys. Sports and race interact to influence boys' sexual risk outcomes: Athletic participation is associated with lowered odds of sexual risk for white male adolescents, but heightened odds of sexual risk for black male adolescents.  相似文献   
995.
Adolescence is the segment of the life course when gender differences in mental health emerge and gender becomes a more salient factor shaping orientations toward oneself and views of one's place in the social world. This study uses mixture modeling, to identify trajectories of masculinity and femininity between ages 12 and 25, and OLS regression, to examine the effects of those trajectories on mental health in young adulthood (measured as depressive symptoms and alcohol problems at age 25). Four waves of prospective data from the Rutgers Health and Human Development Project are used; respondents (n = 447) are age 12 at Wave 1 (1979-81), 15 at Wave 2 (1982-84), 18 at Wave 3 (1985-87), and 25 at Wave 4 (1992-94). Results indicate that having relatively high and increasing levels of masculinity over adolescence decreases depressive symptoms in early adulthood for both males and females. Reflecting the privileging of males over females, the findings suggest that masculinity, but not femininity, is a central axis on which advantages and disadvantages across some dimensions of mental health accumulate over adolescence.  相似文献   
996.
997.
Traumatic experience symptomatology, resiliency factors, and stress among young adults who had experienced alcoholism within their family of origin were assessed in comparison to adults who as children experienced traumatic life events other than alcoholism and those who indicated neither problem (parental alcoholism or traumatic life event) during their childhood. These three groups were compared on self-report measures of stress, resiliency, depressive symptomatology, and trauma symptoms. Results indicated adult children of alcoholics (ACOA) had more self-reported stress, more difficulty initiating the use of mediating factors in response to life events, and more symptoms of personal dysfunction than the control group. Results suggest ACOAs may develop less effective stress management strategies and present more clinically at-risk patterns of responses than their counterparts.  相似文献   
998.
1. Shaken baby syndrome can lead to substantial neuropsychological deficits that can alter children's normal developmental course. 2. Clinical acumen can be critical in identifying shaken baby syndrome and preventing further difficulties. 3. Education and treatment for caregivers can be important in reducing the likelihood of shaken baby syndrome.  相似文献   
999.
Stalking is relatively common yet little is known of the longer-term health effects of stalking. Using the National Violence Against Women survey, we estimated lifetime stalking victimization among women and men, ages 18 to 65, identified correlates of being stalked, and explored the association between being stalked and mental and physical health status. With a criterion of being stalked on more than one occasion and being at least "somewhat afraid," 14.2% of women and 4.3% of men were victims. Among those stalked, 41% of women and 28% of men were stalked by an intimate partner. Women were more than 13 times as likely to be "very afraid" of their stalker than men. Negative health consequences of being stalked were similar for men and women; those stalked were significantly more likely to report poor current health, depression, injury, and substance use. Implications for victims, service providers, and the criminal justice system were reviewed.  相似文献   
1000.
Structural equation modeling (SEM) was used to test a model incorporating anxious attachment, angry temperament, and attempts to control one's partner as predictors of the severity and frequency of dating violence. To date, these concepts have not been clearly established as having direct or indirect effects on dating violence. It was hypothesized that anxious attachment and angry temperament would influence the need for and attempts to control one's partner which, in turn, would predict a person's actual use of force. College students (213 males; 199 females) completed measures assessing these constructs. Cross-validation was accomplished through using two successive freshmen samples. Statistics indicated the application of the model fit well to both samples. All specified paths were significant except for the direct path from anxious attachment to need for control in the second sample. While exploratory, this model seemed satisfactory for explaining potentially causal relationships of attachment, anger, and attempts to control one's partner leading to dating violence.  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