全文获取类型
收费全文 | 12356篇 |
免费 | 225篇 |
国内免费 | 3篇 |
专业分类
管理学 | 1671篇 |
民族学 | 59篇 |
人才学 | 1篇 |
人口学 | 1260篇 |
丛书文集 | 76篇 |
教育普及 | 1篇 |
理论方法论 | 1103篇 |
现状及发展 | 1篇 |
综合类 | 225篇 |
社会学 | 5975篇 |
统计学 | 2212篇 |
出版年
2023年 | 96篇 |
2021年 | 67篇 |
2020年 | 191篇 |
2019年 | 266篇 |
2018年 | 308篇 |
2017年 | 423篇 |
2016年 | 329篇 |
2015年 | 212篇 |
2014年 | 281篇 |
2013年 | 2136篇 |
2012年 | 434篇 |
2011年 | 367篇 |
2010年 | 296篇 |
2009年 | 284篇 |
2008年 | 318篇 |
2007年 | 312篇 |
2006年 | 291篇 |
2005年 | 301篇 |
2004年 | 280篇 |
2003年 | 243篇 |
2002年 | 282篇 |
2001年 | 300篇 |
2000年 | 300篇 |
1999年 | 280篇 |
1998年 | 189篇 |
1997年 | 178篇 |
1996年 | 170篇 |
1995年 | 169篇 |
1994年 | 137篇 |
1993年 | 156篇 |
1992年 | 167篇 |
1991年 | 147篇 |
1990年 | 159篇 |
1989年 | 184篇 |
1988年 | 152篇 |
1987年 | 139篇 |
1986年 | 149篇 |
1985年 | 167篇 |
1984年 | 167篇 |
1983年 | 157篇 |
1982年 | 122篇 |
1981年 | 106篇 |
1980年 | 102篇 |
1979年 | 138篇 |
1978年 | 88篇 |
1977年 | 87篇 |
1976年 | 88篇 |
1975年 | 80篇 |
1974年 | 80篇 |
1973年 | 73篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
951.
Miller BC 《Journal of Family and Economic Issues》1992,13(4):467-475
Adolescent parenthood has highly publicized adverse social and economic consequences, but these same social and economic disadvantages can be viewed as root causes of adolescent pregnancy. Recent research and revisionist debates about these issues are reviewed and summarized. Diverse implications for social policy are considered. Prevention approaches are emphasized that build on both postponing adolescent sexual intercourse and helping sexually active teens avoid pregnancy.Appreciation is expressed to Christine Bachrach and Kristin Moore for their comments on a previous version of this paper.Dr. Miller's current research interests are the family antecedents of adolescent sexual behavior and the design and evaluation of prevention programs for adolescent problem behaviors. He received his Ph.D. in family sociology from the University of Minnesota in 1975. 相似文献
952.
Jennifer C. Davidson 《Social Work Education》2013,32(5):511-533
Social workers are often challenged by the complex and ever‐changing dynamics within their relationships with clients, and struggle to find ethical responses within professional boundary grey zones where boundaries with clients can be difficult to identify, yet easy to cross. Social work educators attempt to prepare students for these complex situations, yet in the United States research reveals rates of social work boundary violations that lead one to question the efficacy of social work ethics education. This article describes the educational competencies and instructional strategies that comprise an adaptable course module which was developed in response to this challenge, and intended to increase students' self‐awareness, motivation and professional judgment‐making abilities related to their professional boundaries. The educational competencies for this course include the abilities to: identify boundary violations, apply critical thinking skills to complex professional relationship contexts, increase awareness of self and other, and initiate prevention strategies. In contrast to traditional approaches to education, this article describes instructional strategies that are based on adult‐learning principles, which have the purpose of effectively and creatively teaching topic areas in such a way as to produce behavioural change. These course topic areas include a ‘Professional Relationship Boundaries Continuum’ conceptual framework, boundary violation impacts, personal boundary vulnerabilities, blurring boundary indicators, and risk‐minimizing strategies. 相似文献
953.
This study focused on how couples’ beliefs about marriage and religion shape the meanings they find in their marriage. Interviews about connections between religion and marriage were conducted with 57 Christian, Jewish, and Muslim couples in New England and northern California. Qualitative analyses found the major theme, common across faith traditions, was that marriage is a sacred union that is “something more": more than the self, more than the couple, and more than the family unit. To these couples marriage is divine and institutional and a vital support for their relationship. Our findings raise an interesting counterpoint to the current scholarly discourse about the deinstitutionalization and individualization of contemporary marriage. Institutionalized features of marriage may retain their strength in contemporary society as many religious couples, and perhaps many other couples as well, believe marriage is something more than the deinstitutionalized, private relationship that many scholars now see. 相似文献
954.
955.
956.
George Y. C. Wong Qinggang Diao 《Journal of Statistical Computation and Simulation》2018,88(1):140-155
We consider the piecewise proportional hazards (PWPH) model with interval-censored (IC) relapse times under the distribution-free set-up. The partial likelihood approach is not applicable for IC data, and the generalized likelihood approach has not been studied in the literature. It turns out that under the PWPH model with IC data, the semi-parametric MLE (SMLE) of the covariate effect under the standard generalized likelihood may not be unique and may not be consistent. In fact, the parameter under the PWPH model with IC data is not identifiable unless the identifiability assumption is imposed. We propose a modification to the likelihood function so that its SMLE is unique. Under the identifiability assumption, our simulation study suggests that the SMLE is consistent. We apply the method to our cancer relapse time data and conclude that the bone marrow micrometastasis does not have a significant prognostic factor. 相似文献
957.
Irina?KrasnopolskayaEmail author Lonneke?Roza Lucas?C.?P.?M.?Meijs 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2016,27(2):640-672
This paper discusses the relationship between corporate volunteering and civic engagement outside the workplace in Russia, proceeding from a mixed-method approach. The quantitative findings are based on a comparison between employees in 37 Russian companies who participated in corporate volunteering (N = 399) and those who did not (N = 402). Using binary logistic regression analysis, we demonstrate that employee participation in corporate volunteering is positively related to four forms of civic engagement outside the workplace: informal volunteering, formal volunteering, formal monetary donation, and informal monetary donation. In addition, we draw on information obtained from interviews with 10 corporate volunteers, as well as with all 37 company corporate volunteering managers, to develop a general explanation for why corporate volunteering might lead to civic engagement. We identify three primary explanations. First, trust in companies can be converted into increased trust in social institutions. Second, corporate volunteering can expose employees to other realities, thereby leading them to rethink their priorities. Third, corporate volunteering socializes employees to volunteering, thus making them more likely to incorporate volunteering into their personal repertoires of activities. Corporate volunteering appears to be an effective mechanism for stimulating civic engagement and volunteering infrastructure in post-communist countries. 相似文献
958.
959.
Sustained mass media campaigns have been recommended to stem the tobacco epidemic in the United States. Propensity score matching (PSM) was used to estimate the effect of awareness of a national smoking cessation media campaign (EX) on quit attempts and cessation-related cognition. Participants were 4,067 smokers and recent quitters aged 18-49 in targeted U.S. media markets. Controlling for potential confounders through PSM and regression analysis, confirmed awareness of EX was not significantly associated with either outcome at 6-month follow-up. Matched analyses excluding 217 quitters resulted in a significant effect of EX on both outcomes. 相似文献
960.
Abstract The well‐being of residents of resource dependent communities is a question of traditional interest to rural sociologists. The label “resource dependent” obscures how this relationship may vary between particular resource industries, regions, or indicators of well‐being. Few analyses have compared the relationship between well‐being and resource dependence across different industries, nor tested competing theories about the relationship between resource dependence and well‐being. Our paper presents an overview of the relationship between resource dependence—agriculture, fisheries, mining, energy, forestry—and human well‐being in Canada. Analysis of 1996 Statistics Canada data revealed a great deal of variation in the effect of “resource” dependence on indicators of well‐being (e.g., human capital, unemployment, income): some industries exhibit fairly positive outcomes (e.g., agriculture), others more negative outcomes (e.g., fishing). Consistent with analyses conducted in the United States, these relationships vary by region, suggesting the need for models that incorporate the particulars of place and industry. 相似文献