全文获取类型
收费全文 | 1415篇 |
免费 | 81篇 |
专业分类
管理学 | 205篇 |
民族学 | 9篇 |
人口学 | 102篇 |
丛书文集 | 5篇 |
理论方法论 | 148篇 |
综合类 | 11篇 |
社会学 | 859篇 |
统计学 | 157篇 |
出版年
2023年 | 13篇 |
2022年 | 7篇 |
2021年 | 18篇 |
2020年 | 28篇 |
2019年 | 61篇 |
2018年 | 56篇 |
2017年 | 71篇 |
2016年 | 52篇 |
2015年 | 46篇 |
2014年 | 56篇 |
2013年 | 302篇 |
2012年 | 60篇 |
2011年 | 56篇 |
2010年 | 43篇 |
2009年 | 33篇 |
2008年 | 34篇 |
2007年 | 40篇 |
2006年 | 47篇 |
2005年 | 33篇 |
2004年 | 33篇 |
2003年 | 44篇 |
2002年 | 31篇 |
2001年 | 24篇 |
2000年 | 23篇 |
1999年 | 29篇 |
1998年 | 14篇 |
1997年 | 13篇 |
1996年 | 10篇 |
1995年 | 10篇 |
1994年 | 17篇 |
1993年 | 12篇 |
1992年 | 15篇 |
1991年 | 6篇 |
1990年 | 12篇 |
1989年 | 10篇 |
1988年 | 11篇 |
1987年 | 10篇 |
1986年 | 9篇 |
1985年 | 9篇 |
1984年 | 9篇 |
1983年 | 9篇 |
1982年 | 9篇 |
1981年 | 9篇 |
1979年 | 8篇 |
1978年 | 8篇 |
1976年 | 8篇 |
1975年 | 7篇 |
1974年 | 4篇 |
1973年 | 4篇 |
1972年 | 6篇 |
排序方式: 共有1496条查询结果,搜索用时 15 毫秒
91.
Gregory Washington Toni Johnson 《Journal Of Human Behavior In The Social Environment》2013,23(2):172-187
This mixed methods study, using the perspectives of administrators and frontline workers, identified the key developmental needs of African American boys involved in manhood development programs. Five conceptual themes emerged: values and behavior; men needed for guidance; successful organizations; economics and systems; and stable quality parenting. Themes from the conceptual clusters are compared to themes in the positive youth development literature, specifically the 40 developmental assets framework proposed by the Search Institute. The resulting distinctive ecological focus is rarely discussed in the youth development literature and may have implications for youth development interventions that target positive African American manhood development. 相似文献
92.
93.
Reference groups and significant others are vitally important in both the formation and the persistence or change of normative as well as deviant behavior patterns. Thus one's initial religious beliefs and behavior (or lack thereof) reflect the socializing influence of the family. However, the situation may change when young people leave home for education or work, as demonstrated by research that shows decreases in religious beliefs or church attendance when young people leave home to attend college. In contrast to the pattern whereby religiosity declines in a college or university environment, we maintain that students who develop close ties with others who are religious, especially in a highly religious community, will maintain the same patterns of high commitment developed in their families. Specifically, we hypothesize that religious beliefs and participation will be positively related to (1) parents' religious beliefs and practices and (2) current friends' religious beliefs and participation. These hypotheses were tested with a sample of college students living on campus (n = 339). The data support the argument that students' current religious beliefs and behavior are related to both their parents' religiosity and the reinforcing effects of the religiosity of their current friends. 相似文献
94.
While utilizing social networks is common in labor markets and may benefit both firms and laborers, social networks are argued to be unusually important in the popular arts. Prior work in economics on the role of relationships in labor markets has generally focused on the benefits and not the costs. This paper takes a different approach by focusing on both costs and benefits, by examining a specific market where relationships are particularly important. This paper argues that in addition to reducing diversity and creating inherent inequalities, excessive reliance on networks can lead to higher agency costs and lower product quality. 相似文献
95.
96.
Roger D. Johnson 《Journal of Socio》2010,39(2):241-250
Conflicting assumptions about labor supply behavior lie at the nexus of ideological and theoretical debates regarding the reality of involuntary unemployment, the efficacy of Keynesian macro-policy, and the appropriate nature of welfare policy. This can in part be attributed to the fact that orthodox theory is effectively predicated upon describing the behavior of individuals whose level of affluence enables them to voluntarily withhold their labor from the market. Ironically, a means of resolution appears if we extend Gary Becker's utility producing model of the household to recognize two latent behavioral concerns: (1) the ‘need’ of households for money income in order to produce utility, and (2) the presence of work activity in the home. The resulting generalized labor supply model extends Becker's analysis to explicitly encompass both the behavior of the affluent, and the behavior of the poor who need to work in order to sustain their existence. 相似文献
97.
Foulkes AS Azzoni L Li X Johnson MA Smith C Mounzer K Montaner LJ 《The annals of applied statistics》2010,4(3):1476-1497
Assessment of circulating CD4 count change over time in HIV-infected subjects on antiretroviral therapy (ART) is a central component of disease monitoring. The increasing number of HIV-infected subjects starting therapy and the limited capacity to support CD4 count testing within resource-limited settings have fueled interest in identifying correlates of CD4 count change such as total lymphocyte count, among others. The application of modeling techniques will be essential to this endeavor due to the typically non-linear CD4 trajectory over time and the multiple input variables necessary for capturing CD4 variability. We propose a prediction based classification approach that involves first stage modeling and subsequent classification based on clinically meaningful thresholds. This approach draws on existing analytical methods described in the receiver operating characteristic curve literature while presenting an extension for handling a continuous outcome. Application of this method to an independent test sample results in greater than 98% positive predictive value for CD4 count change. The prediction algorithm is derived based on a cohort of n = 270 HIV-1 infected individuals from the Royal Free Hospital, London who were followed for up to three years from initiation of ART. A test sample comprised of n = 72 individuals from Philadelphia and followed for a similar length of time is used for validation. Results suggest that this approach may be a useful tool for prioritizing limited laboratory resources for CD4 testing after subjects start antiretroviral therapy. 相似文献
98.
99.
A substantial portion of gamblers in treatment may have co-occurring mental health disorders including substance use disorders, especially alcohol dependency, personality disorders, affective disorders, anxiety disorders and impulse control disorders. Co-occurring mental health disorders affect treatment seeking, the treatment process and its outcome, quality of life and functioning in many mental health disorders. Participants in this study were 78 adults enrolled in state-supported out-patient services for pathological gambling and current Gamblers Anonymous attendees. The majority of participants (76.6%) had co-occurring behaviours; 55.8% had multiple co-occurring behaviours. Participants with multiple co-occurring behaviours were more likely to report that a co-occurring behaviour increased the severity of their gambling symptoms. A dose/response relationship between number of co-occurring behaviours and severity of gambling problems was found. Co-occurring behaviours can interact with gambling behaviour. Brief, validated screening instruments are available for screening and diagnosing co-occurring behaviours among gamblers presenting for treatment. 相似文献
100.