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   11181篇
  免费   31篇
管理学   1565篇
民族学   105篇
人口学   2504篇
丛书文集   4篇
理论方法论   572篇
综合类   291篇
社会学   4927篇
统计学   1244篇
  2024年   1篇
  2023年   10篇
  2022年   2篇
  2021年   11篇
  2020年   21篇
  2019年   36篇
  2018年   1688篇
  2017年   1693篇
  2016年   1102篇
  2015年   63篇
  2014年   71篇
  2013年   163篇
  2012年   363篇
  2011年   1190篇
  2010年   1064篇
  2009年   802篇
  2008年   842篇
  2007年   1023篇
  2006年   15篇
  2005年   255篇
  2004年   270篇
  2003年   227篇
  2002年   109篇
  2001年   17篇
  2000年   23篇
  1999年   22篇
  1998年   8篇
  1997年   11篇
  1996年   35篇
  1995年   6篇
  1994年   12篇
  1993年   8篇
  1992年   5篇
  1991年   1篇
  1990年   6篇
  1989年   4篇
  1988年   8篇
  1987年   4篇
  1984年   5篇
  1983年   2篇
  1981年   2篇
  1980年   3篇
  1979年   3篇
  1978年   2篇
  1977年   1篇
  1976年   1篇
  1974年   1篇
  1973年   1篇
排序方式: 共有10000条查询结果,搜索用时 201 毫秒
991.
This paper examines whether receipt of public or private assistance is associated with recipients’ own generosity in the form of formal and informal volunteering. Using matched data from the 2007–2011 American Time Use Survey and the Annual Social and Economic Supplement to the Current Population Survey, this paper finds that receipt of private assistance from friends and relatives is negatively associated with the time women spend caring for non-household adults and the time men spend caring for non-household children. Receipt of public assistance is found to be negatively associated with men’s care of non-household adults. No associations are found between either type of assistance and time spent volunteering for a formal organization.  相似文献   
992.
This paper analyzes the effect of a statewide merit-based scholarship program on educational outcomes in Arizona. It tests whether Arizona’s Instrument to Measure Standards (AIMS) scholarship has an effect on a comprehensive set of educational outcomes such as the number of applicants, student admissions, first-year first-time enrollment, ACT scores of entering freshman, retention rates, as well as on the level of tuition and fees at the three schools targeted by the program; Arizona State University, University of Arizona and Northern Arizona University. Both difference-in-differences estimation as well as synthetic control methods shows that AIMS has an economically and statistically significant effect enrollment. Enrollment effects are greatest among African American and Hispanic students and are significant for both men and women. While point estimates suggest that AIMS also lead to increases in tuition and fees, these results are not robust to placebo tests.  相似文献   
993.
The probability that Mexican households receive remittances increases in response to temporary loss of employment by household heads. Evidence indicates that the probability doubles in the short-term, with a stronger effect in the first quarter of unemployment. Taking into account inter-household transfers within Mexico, the increase in the probability of private transfers is similar in households with low and high access to migratory networks in the U. S. The effectiveness of private transfers as an insurance mechanism has been reduced in an environment of economic crisis.  相似文献   
994.
This study examined gender, age, and task differences in positive touch and physical proximity during mother–child and father–child conversations. Sixty-five Spanish mothers and fathers and their 4- (M = 53.50 months, SD = 3.54) and 6-year-old (M = 77.07 months, SD = 3.94) children participated in this study. Positive touch was examined during a play-related storytelling task and a reminiscence task (conversation about past emotions). Fathers touched their children positively more frequently during the play-related storytelling task than did mothers. Both mothers and fathers were in closer proximity to their 6-year-olds than their 4-year-olds. Mothers and fathers touched their children positively more frequently when reminiscing than when playing. Finally, 6-year-olds remained closer to their parents than did 4-year-olds. Implications of these findings for future research on children’s socioemotional development are discussed.  相似文献   
995.
Although appearance-based cues can help to diagnose physical illness, visual manifestations of mental disorder may be more elusive. Here, we investigated whether individuals could distinguish women with a serious mental disorder (borderline personality disorder) from demographically- and IQ-matched non-psychiatric controls. Participants rated mentally ill targets as more likely to have a mental disorder from photos more accurately than chance, despite not believing that such judgments were possible. The configuration of facial cues played an important role in these judgments, as interfering with the spatial relationships between facial features reduced participants’ accuracy to chance guessing. Further investigation showed similar results when participants rated the targets for specific mental disorders (borderline personality disorder, major depressive disorder) and rated the mentally ill targets as more depressed, angry, anxious, disgusted, emotionally unstable, distressed, and less happy. Moreover, the depression ratings significantly correlated with the targets’ actual depressive symptoms. Thus, individuals may be able to infer aspects of mental disorder from minimal facial cues.  相似文献   
996.
We assessed the impact of social context on the judgment of emotional facial expressions as a function of self-construal and decoding rules. German and Greek participants rated spontaneous emotional faces shown either alone or surrounded by other faces with congruent or incongruent facial expressions. Greek participants were higher in interdependence than German participants. In line with cultural decoding rules, Greek participants rated anger expressions less intensely and sad and disgust expressions more intensely. Social context affected the ratings by both groups in different ways. In the more interdependent culture (Greece) participants perceived anger least intensely when the group showed neutral expressions, whereas sadness expressions were rated as most intense in the absence of social context. In the independent culture (Germany) a group context (others expressing anger or happiness) additionally amplified the perception of angry and happy expressions. In line with the notion that these effects are mediated by more holistic processing linked to higher interdependence, this difference disappeared when we controlled for interdependence on the individual level. The findings confirm the usefulness of considering both country level and individual level factors when studying cultural differences.  相似文献   
997.
The purpose of this research was to examine a conceptual/theoretical model with negative (substance use) and positive (extracurricular activities) mediating factors between several bonding systems and violent behavior among female youth. Since much of the prior researches have focused on both males and females therefore this study is focusing on females only. Data from the 2011 National Survey on Drug Use and Health was used for this study. For the purpose of this study female research participants between the age of 12–17 were selected (N = 9383). At the stage of bivariate analysis, parental bonding system was omitted from a model before moving onto a structural equation modeling (SEM) analysis as most of the correlations between indicators of parental bonding systems and dependent variables were not significant. Revised model with two bonding systems on violent behavior through two mediating constructs, extracurricular activities and substance use were tested through the SEM and Sobel test analyses. This structural model specifies a satisfactory fit with the sample. Several mediating effects within this model, which help lower the occurrence of violent behavior, were also validated.  相似文献   
998.
This study is an assessment of different components of attachment for a sample of Romanian adoptees and their parents, both who participated in the project (n = 63). Results suggest that various aspects of the parent–child relationship in early adolescence is quite positive from both the adoptee and adoptive parent perspective. However, almost half (46 %) of the adoptees were assessed as having insecure attachment. There are differences between all components of parental attachment and adoptee attachment security. Also, insecure attachment is more likely to occur with less optimal parenting style. Implications for social work practice and research are discussed.  相似文献   
999.
The quality of parenting, composition and socio-economic status are family risk or protective factors on juvenile delinquency, however, there is not an instrument to help psychologists and social workers to specifically assess the adolescent offender’s family. This study set out to accomplish an additional validation study of the structured interview of family assessment risk (SIFAR), a structured professional judgment tool for the assessment of family risk and protective factors of juvenile delinquents. The statistical analyses included inter-rater reliability, convergent validity with YLS/CMI, the Partial Least Squares approach to structural equation modeling and receiving operator characteristics (ROC) analysis. A sample of 130 male adolescent delinquents detained in Portuguese forensic facilities and their parents, were paired analyzed. The YLS/CMI was used to analyze the convergent validity with SIFAR. SIFAR shows a strong correlation with the YLS/CMI family context, moderate to high values of inter-rater reliability; SIFAR factors show that they are predictive determinants of the Moderate Four risk factors. ROC analysis shows adequate accuracy power. The findings show that SIFAR it is useful as an additional assessment tool for structured risk assessment instruments since it allows understanding the vulnerabilities and strengths of the delinquent’s family.  相似文献   
1000.
This mixed methods study examines the benefits of basing a family support worker (FSW) at a primary school in Melbourne, Australia. The school has a number of high needs families requiring extensive support from school staff. Pre and post intervention data was collected on the time spent on social problems in the school community. These included managing students with behavioural and emotional issues, providing support and practical assistance to parents with problems and liaising with agencies to access support for students and families. Pre and post intervention Strengths and Difficulties Questionnaires were completed by teachers whose students and families were clients of the FSW (n = 8) and compared with non clients (n = 10). Semi-structured interviews were held with FSW clients (n = 6), class teachers (n = 3) the assistant principal, principal and the FSW. Employing a FSW showed a reduction in the amount of time spent on welfare cases for teachers, and therefore a monetary saving for the school. Qualitative data collected from school staff and FSW clients was overwhelmingly positive. Having a FSW based at a primary school provides savings in teacher time, and expenses to the school. Teachers are freed to concentrate on education and the parents valued the relationship provided by the FSW.  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