全文获取类型
收费全文 | 3288篇 |
免费 | 47篇 |
专业分类
管理学 | 598篇 |
民族学 | 25篇 |
人才学 | 4篇 |
人口学 | 222篇 |
丛书文集 | 18篇 |
理论方法论 | 357篇 |
综合类 | 28篇 |
社会学 | 1570篇 |
统计学 | 513篇 |
出版年
2023年 | 32篇 |
2022年 | 15篇 |
2021年 | 18篇 |
2020年 | 71篇 |
2019年 | 105篇 |
2018年 | 85篇 |
2017年 | 106篇 |
2016年 | 104篇 |
2015年 | 82篇 |
2014年 | 89篇 |
2013年 | 503篇 |
2012年 | 116篇 |
2011年 | 96篇 |
2010年 | 104篇 |
2009年 | 92篇 |
2008年 | 115篇 |
2007年 | 91篇 |
2006年 | 111篇 |
2005年 | 131篇 |
2004年 | 88篇 |
2003年 | 98篇 |
2002年 | 90篇 |
2001年 | 71篇 |
2000年 | 50篇 |
1999年 | 62篇 |
1998年 | 53篇 |
1997年 | 34篇 |
1996年 | 34篇 |
1995年 | 28篇 |
1994年 | 50篇 |
1993年 | 45篇 |
1992年 | 36篇 |
1991年 | 44篇 |
1990年 | 39篇 |
1989年 | 34篇 |
1988年 | 34篇 |
1987年 | 35篇 |
1986年 | 24篇 |
1985年 | 42篇 |
1984年 | 38篇 |
1983年 | 28篇 |
1982年 | 31篇 |
1981年 | 19篇 |
1980年 | 14篇 |
1979年 | 13篇 |
1978年 | 16篇 |
1977年 | 16篇 |
1976年 | 15篇 |
1975年 | 12篇 |
1974年 | 17篇 |
排序方式: 共有3335条查询结果,搜索用时 15 毫秒
1.
2.
Draus Paul Lovall Sam Formby Treva Baldwin Lloyd Lowe-Anderson Wanda 《Urban Ecosystems》2019,22(1):91-102
Urban Ecosystems - In 2011, Marathon Petroleum Company LP, which has operated a refinery west of the Rouge River since 1959, initiated a voluntary property purchase program in the neighborhood... 相似文献
3.
Philippe-Benoit Côté 《Journal of social service research》2019,45(3):429-443
The sexual health problems experienced by homeless youth bring into question their use of available sexual health services. Using a qualitative typological analysis, this study aims to identify sexual health services utilization profiles for homeless youth, and to understand the role of the homeless experience on the utilization of sexual health services. Individual interviews were conducted with 33 homeless youth (17 men, 16 women) between 18 and 25?years of age. Typological analysis identified four profiles: (1) a targeted use of sexual health services to determine one’s serological status following a relational change during the homeless experience; (2) a limited use of sexual health services to manage sexual emergencies that arise during the homeless experience; (3) a regular use of sexual health services to avoid the risks associated with the homeless experience; (4) a frequent use of sexual health services to obtain support when engaging in prostitution during the homeless experience. This study shows that the precarious and unstable conditions within the homeless experience incite youth to utilize sexual health services in different ways. These findings point to the importance of rethinking sexual health services to better adapt them to the different utilization profiles of homeless youth. 相似文献
4.
Brizzi Francesco Birrell Paul J. Plummer Martyn T. Kirwan Peter Brown Alison E. Delpech Valerie C. Gill O. Noel De Angelis Daniela 《Lifetime data analysis》2019,25(4):757-780
Lifetime Data Analysis - CD4-based multi-state back-calculation methods are key for monitoring the HIV epidemic, providing estimates of HIV incidence and diagnosis rates by disentangling their... 相似文献
5.
6.
The concept of exposure is central to chemical risk assessment and plays an important role in communicating to the public about the potential health risks of chemicals. Research on chemical risk perception has found some indication that the model lay people use to judge chemical exposure differs from that of toxicologists, thereby leading to different conclusions about chemical safety. This paper presents the results of a series of studies directed toward developing a model for understanding how lay people interpret the concept of chemical exposure. The results indicate that people's beliefs about chemical exposure (and its risks) are based on two broad categories of inferences. One category of inferences relates to the nature in which contact with a chemical has taken place, including the amount of a chemical involved and its potential health consequences. A second category of inferences about chemical exposure relates to the pragmatics of language interpretation, leading to beliefs about the motives and purposes behind chemical risk communication. Risk communicators are encouraged to consider how alternative models of exposure and language interpretation can lead to conflicting conclusions on the part of the public about chemical safety. 相似文献
7.
8.
9.
Prejudice and discrimination against lesbian, gay, bisexual, transgender, and queer (LGBTQ) individuals continues to have a detrimental impact on the mental health of this population. Research examining commonalities and uniqueness among negative attitudes toward specific sexual and gender minority groups is extremely limited. The authors propose that research examining sexual prejudice include attitudes toward diverse subgroups within the larger LGBTQ community in order to facilitate development of underlying constructs and identify unique contributing factors. Common and unique factors identified within existing research are organized into categorical themes, which are delineated in a conceptual factor model of sexual and transgender prejudice. 相似文献
10.
Paul C 《Physician executive》1995,21(10):42-43
Recently, the number of physicians who have been interested in alternative careers has vastly increased. Many physicians express dissatisfaction with clinical practice, but they are uncertain about which nonclinical options are appropriate for them. Pursuing a different career after many years of studying and practicing medicine can seem like an overwhelming task. In this article, the author briefly outlines a decision-making process that can be used in analyzing career options and suggests some careers that have provided challenging opportunities for physicians. 相似文献