全文获取类型
收费全文 | 699篇 |
免费 | 30篇 |
专业分类
管理学 | 96篇 |
民族学 | 7篇 |
人口学 | 53篇 |
丛书文集 | 1篇 |
理论方法论 | 73篇 |
综合类 | 8篇 |
社会学 | 379篇 |
统计学 | 112篇 |
出版年
2023年 | 5篇 |
2021年 | 6篇 |
2020年 | 20篇 |
2019年 | 18篇 |
2018年 | 15篇 |
2017年 | 42篇 |
2016年 | 23篇 |
2015年 | 18篇 |
2014年 | 18篇 |
2013年 | 142篇 |
2012年 | 16篇 |
2011年 | 20篇 |
2010年 | 22篇 |
2009年 | 19篇 |
2008年 | 26篇 |
2007年 | 17篇 |
2006年 | 13篇 |
2005年 | 7篇 |
2004年 | 15篇 |
2003年 | 16篇 |
2002年 | 16篇 |
2001年 | 15篇 |
2000年 | 19篇 |
1999年 | 17篇 |
1998年 | 16篇 |
1997年 | 7篇 |
1996年 | 8篇 |
1995年 | 9篇 |
1994年 | 10篇 |
1993年 | 8篇 |
1992年 | 14篇 |
1991年 | 7篇 |
1990年 | 4篇 |
1989年 | 5篇 |
1988年 | 4篇 |
1987年 | 3篇 |
1986年 | 10篇 |
1985年 | 13篇 |
1984年 | 6篇 |
1983年 | 11篇 |
1982年 | 3篇 |
1981年 | 3篇 |
1980年 | 4篇 |
1978年 | 3篇 |
1977年 | 4篇 |
1976年 | 8篇 |
1975年 | 7篇 |
1971年 | 2篇 |
1967年 | 4篇 |
1966年 | 2篇 |
排序方式: 共有729条查询结果,搜索用时 31 毫秒
71.
72.
Robert W. Strack Karyn Kai Anderson Camelia M. Graham Naomi Tomoyasu 《Child and Adolescent Social Work Journal》2007,24(3):261-283
Analysis reported here examined youth in residential group home placements in order to better understand how sexual behaviors,
drug use, and environmental experiences differ by race and gender subgroups. Data were collected from 336 youth aged 14–21
residing in one of 41 group homes in Maryland. Chi square and logistic regression analyses were done to determine differences
on study variables among the race-gender groupings. Results demonstrate not only significant health concerns overall but notable
differences were also found between race-gender subgroups. Findings suggest that found race-gender subgroup differences might
be informative for tailoring programming for youth of residential group home settings. 相似文献
73.
In this paper a method for the construction of a class of row-column designs with good statistical properties and high efficiency is presented. The class of designs produced is shown to exhibit balance, orthogonality and adjusted orthogonality. The efficiencies of these designs are investigated in detail, and they are shown to be very high, and possibly maximal in some cases. 相似文献
74.
The purpose of this article is to demonstrate how social network analysis can be used to provide information for policy decisions pertaining to physicians' adoption and utilization of new medical technology. Interviews and hospital records were used to obtain data on refenals, consultations, discussions, and on-call coverage; utilization of a computer-based hospital information system; and personal and practice characteristics from 24 physicians who belong to a private group practice. The results of a block-model analysis suggest that the physician's relative position in the network is an important determinant of his/her participation in the diffusion process. A number of policy implications related to the introduction of new medical technology into practice settings are discussed. 相似文献
75.
Oliver D. Anderson 《Revue canadienne de statistique》1990,18(3):271-284
Cumulants, moments about zero, and central moments are obtained for the mean-corrected serial covariances and serial correlations for series realizations of length n from a white-noise Gaussian process. All first and second moments (and some third, fourth, and higher moments) are given explicitly for the serial covariances; and the corresponding moments for the serial correlations are derived either explicitly or implicitly. 相似文献
76.
Seiler SN Brummel BJ Anderson KL Kim KJ Wee S Gunsalus CK Loui MC 《Accountability in research》2011,18(4):217-246
We describe the summative assessment of role-play scenarios that we previously developed to teach central topics in the responsible conduct of research (RCR) to graduate students in science and engineering. Interviews with role-play participants, with participants in a case discussion training session, and with untrained students suggested that role-playing might promote a deeper appreciation of RCR by shifting the focus away from wanting to simply "know the rules." We also present the results of a think-aloud case analysis study and describe the development of a behaviorally-anchored rating scale (BARS) to assess participants' case analysis performance. 相似文献
77.
Scientists study seasonality in order to understand the effect of environmental, biological, and social factors on demographic events. Poor data quality can also affect seasonal variation in mortality and fertility statistics. The influence of error on seasonal data becomes crucial as researchers analyze timing and spacing of events in time-series analyses. In this study we examine the reported number of births by month in the Soviet Union for 1950, 1955, and 1958–85. The lowest number of births has typically occurred in December, and the highest in January. This seasonal pattern is not consistent with any plausible biological or behavioural explanation. It is probably an artifact of attributing births that actually occurred during the preceding December or earlier, to January. This implies that Soviet statistical practice has not followed the stated policy of attributing births to the period (day, month, year) in which they occur. A substantial reduction between the 1950s and 1985 in the December-January peak in reported births implies marked improvement in Soviet vital registration statistics. The Soviet case shows that characteristics of the registration system can impart a particular seasonal pattern to demographic data. It also shows that officially prescribed procedures are not always followed in data generation, even in centrally planned economies. Researchers should carefully examine the quality of seasonal data before concluding that the data reflect real variations in demographic behaviour. 相似文献
78.
Stephanie N. Seiler Ph.D. Bradley J. Brummel Ph.D. Kerri L. Anderson M.H.R.I.R. Kyoung Jin Kim Ph.D. Serena Wee Ph.D. C. K. Gunsalus J.D. 《Accountability in research》2013,20(4):217-246
We describe the summative assessment of role-play scenarios that we previously developed to teach central topics in the responsible conduct of research (RCR) to graduate students in science and engineering. Interviews with role-play participants, with participants in a case discussion training session, and with untrained students suggested that role-playing might promote a deeper appreciation of RCR by shifting the focus away from wanting to simply “know the rules.” We also present the results of a think-aloud case analysis study and describe the development of a behaviorally-anchored rating scale (BARS) to assess participants' case analysis performance. 相似文献
79.
Our paper explores race and gender variations in the processes of exiting a “drug-addict role” and in creating a “recovering-addict role” within the ideological constraints of 12-Step programs. Our method is qualitative and features in-depth interviewing with 45 currently abstinent drug addicts from the 12-Step programs of Alcoholics Anonymous (A.A.) and Narcotics Anonymous (N.A.) in the Washington, D.C., Metropolitan Area as well as a residential and out-patient treatment program in mid-Michigan. Our respondents' exit processes typically began with doubts about the drug addict role followed by an often long and dynamic period of seeking alternatives to it without giving up drugs and alcohol completely. In some cases, however, participation in a new role initiated doubts about an existing one. Contrary to extant research, turning points or epiphanic moments in existing roles were not always identified. Most importantly, however, we found many differences by race and gender in what comprised the exit process. Gender socialization, cultural diversity, and the history of race relations in the United States help to explain this diversity. 相似文献
80.