全文获取类型
收费全文 | 1203篇 |
免费 | 90篇 |
专业分类
管理学 | 94篇 |
民族学 | 19篇 |
人口学 | 141篇 |
丛书文集 | 4篇 |
理论方法论 | 160篇 |
综合类 | 8篇 |
社会学 | 810篇 |
统计学 | 57篇 |
出版年
2024年 | 3篇 |
2023年 | 18篇 |
2022年 | 11篇 |
2021年 | 12篇 |
2020年 | 51篇 |
2019年 | 46篇 |
2018年 | 74篇 |
2017年 | 111篇 |
2016年 | 82篇 |
2015年 | 62篇 |
2014年 | 49篇 |
2013年 | 220篇 |
2012年 | 64篇 |
2011年 | 67篇 |
2010年 | 35篇 |
2009年 | 38篇 |
2008年 | 51篇 |
2007年 | 40篇 |
2006年 | 31篇 |
2005年 | 35篇 |
2004年 | 24篇 |
2003年 | 30篇 |
2002年 | 31篇 |
2001年 | 11篇 |
2000年 | 11篇 |
1999年 | 18篇 |
1998年 | 10篇 |
1997年 | 2篇 |
1996年 | 3篇 |
1995年 | 10篇 |
1994年 | 2篇 |
1993年 | 7篇 |
1992年 | 1篇 |
1991年 | 4篇 |
1990年 | 3篇 |
1989年 | 4篇 |
1988年 | 2篇 |
1987年 | 2篇 |
1986年 | 3篇 |
1985年 | 4篇 |
1984年 | 2篇 |
1983年 | 4篇 |
1981年 | 1篇 |
1980年 | 2篇 |
1979年 | 1篇 |
1978年 | 1篇 |
排序方式: 共有1293条查询结果,搜索用时 15 毫秒
101.
Examination of the relationships between dietary restraint,alcohol, and adverse problems among women
Laura J. Buchholz Janis H. Crowther Jeffrey A. Ciesla 《Journal of American college health : J of ACH》2018,66(5):384-392
Objective: Women who report greater chronic dieting consume more alcohol, drink more frequently, and experience greater problems than women who report less chronic dieting. Alcohol may also temporarily disrupt a woman's dietary rules, leading to increased caloric intake and subsequent restriction. This study examined whether alcohol use mediated the relationship between dietary restraint and alcohol problems in a woman's daily life. Participants: Women (N = 59) completed the study by the fall of 2013. Methods: Participants completed up to six assessments for 10 days, including intended dietary restraint, alcohol use, and problems. Results: Drinking quantity partially mediated the relationship between dietary restraint and alcohol problems. For each drink consumed, there was a 1.4 times greater likelihood of eating after drinking, which was associated with greater intention to subsequently restrict calories. Conclusions: The types of drinks consumed and reasons for restricting one's caloric intake may inform the relationship between these behaviors. 相似文献
102.
Research has shown that social relationships are generally beneficial for mental health (Thoits 1995). However, few scholars have examined this association after the occurrence of a significant shock to the social system as a whole. The purpose of this article is to examine the relationship between social integration and war-related distress in Croatia immediately following the recent civil war. Does social integration decrease war-related distress? Does social integration buffer the effect of traumatic events on war-related distress? We analyze these questions using nationally representative survey data collected in Croatia in 1996. Results suggest that social integration has both positive and negative direct effects on distress. Being a member of informal organizations, such as sports clubs, and participating in social activities are beneficial for mental health. On the other hand, being a member of some formal organizations, such as church organizations and unions, is detrimental to mental health. There is little support for the idea that social integration buffers the effect of traumatic events on distress. Only one of thirty-six possible interactions is significant and supports the buffer hypothesis. Frequent participation in social activities buffers the effect of experiencing violence on war-related distress. Also, some forms of social integration appear to aggravate the effect of traumatic events on war-related distress. In sum, social integration does affect war-related distress after a system shock, but in complex and sometimes unexpected ways. 相似文献
103.
104.
H.?Elizabeth Peters Laura?M.?ArgysEmail author Heather?Wynder ?Howard J.?S.?Butler 《Review of Economics of the Household》2004,2(3):255-274
Reducing non-marital childbearing and making nonresidential fathers take greater responsibility for their children were identified as goals of numerous policy changes since the 1980s. Child-support award rates for children born to unmarried parents have been quite low historically, leading lawmakers to focus on increasing both award and payment rates for this group. Nonmarital fathers are also much less likely to have contact with their children. Although evidence suggests that policy efforts increase child support awards and receipt, the link between child support policies, child support outcomes, and father-child contact has received less attention. This paper uses data from the Survey of Income and Program Participation on children born between 1985–1997 to investigate the relationship between child-support award and receipt and the amount of contact that fathers have with their non-residential children. Since it is likely that both of these behaviors are, in part, determined by unobservable characteristics of the father, we estimate an instrumental variables Tobit model. The model is identified by our assumption that child support policy variables can impact child support awards and payments, but father-child contact cannot be directly legislated. Our results suggest that there are unintended, but desirable effects of child support establishment and collection. Policies to collect child support not only increase financial resources to families, but through their impact on payments increase visitation and contact between these children and their fathers. The estimated impact of receiving child support on contact is more than 27 days per year.An earlier version of this paper was presented at the Annual Meetings of the American Economic Association, Washington DC, January 2003 and the Annual Meetings of the Association of Public Policy and Management, November 2003. Support from NICHD Grant # HD30944 is gratefully acknowledged. We would like to thank Suzann Eshleman for excellent computer programming and James Scully for providing us with data on genetic testing laws. 相似文献
105.
Although many researchers have explored the topic of dating violence, limited attention has been paid to female perpetrators. Very little research has examined variables that facilitate aggression for females in dating relationships. In an effort to investigate distinct types of violent behavior, the present study separated females who experience dating violence into three categories (bi-directional aggression, perpetrator-only, and victim-only) and compared them with a control group not previously exposed to interpersonal violence. The purpose of this study was to examine variables that discriminate violent females from non-violent females. Variables that were hypothesized to be associated with aggressive behavior and investigated in the current study were interparental aggression, self-esteem, love attitudes, and alcohol use. Three hundred female college students responded to multiple self-report questionnaires examining psychological correlates of dating violence. Females in the bi-directional aggression group were more likely to have witnessed their father abuse their mother and scored significantly lower on a measure of self-esteem than non-violent controls. Females in the control group demonstrated higher scores on a measure of mature and selfless love style than did the victim or perpetrator-only participants. There were no significant group differences regarding general alcohol consumption. Implications for prevention and intervention are presented and discussed. 相似文献
106.
Hoopes LL 《Science of aging knowledge environment : SAGE KE》2002,2002(45):vp6
The error catastrophe theory of aging, proposed by Orgel in 1963, predicted a decrease in the fidelity of information transfer that accelerated as aging progressed, until properly functioning macromolecules could no longer be reliably made. The theory was extensively tested by comparing DNA polymerases, transfer RNAs, and proteins derived from aging versus young animals, but it did not prove to have general applicability to the process of aging. Recently, the heritable eye disorder progressive external ophthalmoplegia has been found to result from mutation of the gene encoding DNA polymerase gamma, which replicates mitochondrial DNA. The mutant form of the polymerase replicates DNA less accurately than the wild-type enzyme, providing an explanation for the accumulation of mutations in the mitochondrial DNA of patients with this disorder. The affected mitochondria appear to exhibit an age-dependent error catastrophe. It is possible that other genetic diseases might result in error catastrophes in mitochondria as well. 相似文献
107.
108.
Even before the 1996 overhaul of the U.S. welfare system, a number of states had ended the practice of paying extra benefits
to families who have additional children while receiving welfare. Proponents believe that this reform can reduce births to
recipients, however many worry that it may encourage women to obtain abortions. Using a sample of unmarried AFDC recipients
from the NLSY, we estimate a bivariate probit model of pregnancy and, conditional on becoming pregnant, the probability of
abortion. Our results lend some support for the proposition that reducing incremental AFDC benefits will decrease pregnancies
without increasing abortions.
Received: 16 April 1998/Accepted: 11 March 1999 相似文献
109.
110.
Robert W. Lent Laura Nota Salvatore Soresi Lea Ferrari 《The Career development quarterly》2007,56(2):183-191
Industrial/organizational researchers have reported that realistic job previews diminish prospective workers' expectations but promote the satisfaction and persistence of those who ultimately accept a job assignment. The authors applied this strategy to the context of school‐to‐college transition; 354 Italian high school students were provided with a 2‐hour lecture designed to simulate exposure to a college major of their choice. Students showed moderate pre‐post increases in subject matter knowledge but reported small decreases in interests and outcome expectations (but not self‐efficacy) related to the academic major to which they were exposed. 相似文献