全文获取类型
收费全文 | 2018篇 |
免费 | 73篇 |
专业分类
管理学 | 258篇 |
民族学 | 24篇 |
人才学 | 1篇 |
人口学 | 182篇 |
丛书文集 | 12篇 |
理论方法论 | 190篇 |
现状及发展 | 1篇 |
综合类 | 13篇 |
社会学 | 1135篇 |
统计学 | 275篇 |
出版年
2023年 | 17篇 |
2022年 | 10篇 |
2021年 | 25篇 |
2020年 | 45篇 |
2019年 | 54篇 |
2018年 | 61篇 |
2017年 | 77篇 |
2016年 | 60篇 |
2015年 | 57篇 |
2014年 | 64篇 |
2013年 | 386篇 |
2012年 | 77篇 |
2011年 | 94篇 |
2010年 | 54篇 |
2009年 | 53篇 |
2008年 | 82篇 |
2007年 | 57篇 |
2006年 | 57篇 |
2005年 | 53篇 |
2004年 | 52篇 |
2003年 | 43篇 |
2002年 | 51篇 |
2001年 | 42篇 |
2000年 | 36篇 |
1999年 | 32篇 |
1998年 | 27篇 |
1997年 | 15篇 |
1996年 | 29篇 |
1995年 | 30篇 |
1994年 | 21篇 |
1993年 | 13篇 |
1992年 | 15篇 |
1991年 | 22篇 |
1990年 | 22篇 |
1989年 | 16篇 |
1988年 | 17篇 |
1987年 | 19篇 |
1986年 | 11篇 |
1985年 | 22篇 |
1984年 | 14篇 |
1983年 | 16篇 |
1982年 | 18篇 |
1981年 | 17篇 |
1980年 | 13篇 |
1979年 | 14篇 |
1978年 | 13篇 |
1977年 | 6篇 |
1976年 | 12篇 |
1975年 | 10篇 |
1974年 | 9篇 |
排序方式: 共有2091条查询结果,搜索用时 646 毫秒
921.
James Price PhD MPH Adam J. Mrdjenovich PhD Amy Thompson PhD Joseph A. Dake PhD MPH 《Journal of American college health : J of ACH》2013,61(2):133-139
Abstract Objectives: This study assessed college counselors’ anticipatory guidance on firearms for student clients. Participants: The membership of the Association for University and College Counseling Center Directors was used to identify a national random sample of counseling centers (n = 361). One counselor from each center was selected to survey. Methods: In the winter of 2008, a 3-wave mailing procedure was used to maximize the response rate. Completed surveys served as consent (as approved by the University Human Subjects Committee). Results: A total of 213 counselors (59%) responded. They were unlikely to provide anticipatory guidance (6%), chart/keep records on client ownership/access to firearms (17%), or to counsel the majority of clients from various diagnostic categories on firearms. Conclusions: University personnel are likely to refer students with suspected mental health problems to university counseling centers. The findings indicate that few counseling centers will address firearm issues with students. 相似文献
922.
Joseph C. Miller 《Slavery & abolition》2013,34(1):249-271
923.
924.
Reduced-rank regression models proposed by Anderson [1951. Estimating linear restrictions on regression coefficients for multivariate normal distributions. Ann. Math. Statist. 22, 327–351] have been used in various applications in social and natural sciences. In this paper we combine the features of these models with another popular, seemingly unrelated regression model proposed by Zellner [1962. An efficient method of estimating seemingly unrelated regressions and tests for aggregation bias. J. Amer. Statist. Assoc. 57, 348–368]. In addition to estimation and inference aspects of the new model, we also discuss an application in the area of marketing. 相似文献
925.
M. Joseph Sirgy Eda Gurel-Atay Dave Webb Muris Cicic Melika Husic-Mehmedovic Ahmet Ekici Andreas Herrmann Ibrahim Hegazy Dong-Jin Lee J. S. Johar 《Social indicators research》2013,110(1):349-366
The literature in economic psychology and quality-of-life studies alludes to a negative relationship between materialism and life satisfaction. In contrast, the macroeconomic literature implies a positive relationship between material consumption and economic growth. That is, materialism may be both good and bad. We develop a model that reconciles these two contrasting viewpoints by asserting that materialism may lead to life dissatisfaction when materialistic people evaluate their standard of living using fantasy-based expectations (e.g., ideal expectations), which increases the likelihood that they would evaluate their standard of living negatively. In turn, dissatisfaction with standard of living increases the likelihood that they would evaluate their life negatively. However, materialistic people who evaluate their standard of living using reality-based expectations (e.g., ability expectations) are likely to feel more economically motivated than their non-materialistic counterparts, and this economic motivation is likely to contribute significantly and positively to life satisfaction. Survey data were collected from seven major cities each in a different country (Australia, Bosnia/Herzegovina, Germany, Egypt, Korea, Turkey, and the USA) using a probability sample (cluster sampling method involving income stratification). The results provide support for the model. The economic public policy implications concerning how people evaluate their standard of living using ability-based expectations are discussed in the context of the ideals of meritocracy. 相似文献
926.
Abstract A recent wave of research promotes the idea that anonymity or deindividuation precipitates collective behavior. Specifically, anonymous individuals are more likely to participate in collective behavior events than people among friends and acquaintances. To reconsider this recent resurgence of a more contemporary contagion theory, we replicate and expand upon Aveni's (1977) study of crowd behavior. Our survey data of crowd and collective behavior participants show that anonymity actually hinders the emergence of collective behavior. Rather, collective behavior participants are more likely to be in small groups rather than isolated individuals. Our data do suggest that one form of anonymity (i.e., anonymity from formal agents of social control) can facilitate the emergence of collective behavior. 相似文献
927.
ABSTRACT Perceptions of permanency from the child's perspective can aid in giving voices to children impacted by foster care, thus promoting their personal sense of empowerment. This research represents a longitudinal assessment of how children living in foster care perceive permanency; specifically, their placement preferences while living in temporary foster care. Analyses were conducted on a subset of 2,671 children from the National Survey of Child and Adolescent Well-Being (NSCAW). Utilizing attachment and social capital constructs, children's preferences were predicted using Generalized Ordered Logistic regression analyses. Results demonstrated differences in children's perceptions and preferences for permanency at three waves of data collection. 相似文献
928.
929.
Sample size re-estimation without unblinding for normally distributed outcomes with unknown variance
Monitoring clinical trials in nonfatal diseases where ethical considerations do not dictate early termination upon demonstration of efficacy often requires examining the interim findings to assure that the protocol-specified sample size will provide sufficient power against the null hypothesis when the alternative hypothesis is true. The sample size may be increased, if necessary to assure adequate power. This paper presents a new method for carrying out such interim power evaluations for observations from normal distributions without unblinding the treatment assignments or discernably affecting the Type 1 error rate. Simulation studies confirm the expected performance of the method. 相似文献
930.