全文获取类型
收费全文 | 679篇 |
免费 | 22篇 |
专业分类
管理学 | 67篇 |
民族学 | 5篇 |
人口学 | 49篇 |
丛书文集 | 2篇 |
理论方法论 | 63篇 |
综合类 | 12篇 |
社会学 | 425篇 |
统计学 | 78篇 |
出版年
2023年 | 7篇 |
2022年 | 3篇 |
2021年 | 2篇 |
2020年 | 13篇 |
2019年 | 22篇 |
2018年 | 29篇 |
2017年 | 30篇 |
2016年 | 26篇 |
2015年 | 16篇 |
2014年 | 22篇 |
2013年 | 120篇 |
2012年 | 31篇 |
2011年 | 24篇 |
2010年 | 13篇 |
2009年 | 19篇 |
2008年 | 20篇 |
2007年 | 18篇 |
2006年 | 19篇 |
2005年 | 28篇 |
2004年 | 14篇 |
2003年 | 22篇 |
2002年 | 27篇 |
2001年 | 20篇 |
2000年 | 13篇 |
1999年 | 7篇 |
1998年 | 10篇 |
1997年 | 2篇 |
1996年 | 10篇 |
1995年 | 9篇 |
1994年 | 8篇 |
1993年 | 8篇 |
1992年 | 6篇 |
1991年 | 6篇 |
1990年 | 8篇 |
1989年 | 9篇 |
1988年 | 4篇 |
1987年 | 3篇 |
1986年 | 5篇 |
1985年 | 2篇 |
1984年 | 5篇 |
1983年 | 5篇 |
1982年 | 8篇 |
1981年 | 4篇 |
1980年 | 2篇 |
1979年 | 7篇 |
1978年 | 3篇 |
1973年 | 2篇 |
1970年 | 2篇 |
1967年 | 2篇 |
1966年 | 3篇 |
排序方式: 共有701条查询结果,搜索用时 31 毫秒
61.
62.
The primary goal of this study is to examine the association between marijuana use and adult depressive symptomatology. The key independent variables examined are age of marijuana initiation, frequency of current marijuana use, the use of other licit and illicit drugs, and whether marijuana was used to cope with problems. The relationships among these variables are assessed using data from the Young Men and Drugs Survey (n = 1,941), a nationally representative sample of men from the 1944-1954 birth cohort. Results show that early marijuana initiation appears to be weakly associated with increased depression in adulthood. This effect, however, is mediated by educational attainment, employment status, marital status, and other drug use, notably alcohol and tobacco use. Adult frequency of marijuana use is not significantly associated with increased depression in adulthood. Finally, marijuana users who use the drug to cope with problems are more depressed than those who do not use to cope with problems. 相似文献
63.
Stephen M. Gavazzi Patrick C. McKenry Jill A. Jacobson Teresa W. Julian Brenda Lohman 《Journal of marriage and the family》2000,62(3):669-682
Previous research has linked expressed emotion (EE) levels and psychiatric symptomology, whereas other empirical efforts have examined the relationship between EE and marital relationship variables. Still other research has linked psychological conditions with acts of aggression, and the impact of marital issues within this domain of inquiry also has been explored. The study presented here examined the combined effects of EE, marital quality, and psychiatric symptomology on displays of verbal aggression by both relationship partners. Both husbands' and wives' reports of marital quality were predictive of both husbands' and wives' verbal aggression levels; here, reports of lower marital quality were associated with higher levels of verbal aggression. Additionally, husbands' and wives' reports of psychological symptomology in self and partner were important paths to marital quality, as were husbands' and wives' reports of EE levels. Further, some evidence was generated that supports the mediating role of marital quality with regard to EE and psychological symptomology. However, the overall fit indices of the models tested in this empirical effort were modest. Limitations that concern the instruments utilized in the present study are discussed in this regard. 相似文献
64.
65.
66.
Maria Oliveira Martins Inês Rodrigues Teresa Rodrigues 《Journal of Population Research》2014,31(4):317-343
Educational attainment is an attribute that leads to a great distinction between the members of a population, including when considering their health and well-being, which are features to pursue within an aging society. The aim of this work was to produce demographic projections for the Portuguese population by sex, age group and level of educational attainment, for the period 2011–2031. Considering fertility, mortality and migration differentials by level of education, the population was projected using the multistate cohort-component method with a block Leslie matrix. Two scenarios were considered, one where educational attainment before 2011 remains constant and another in which educational attainment will follow the trend observed over the last decade, being the trend in the state proportion modelled using continuation ratio models. The results show an increase in the proportion of individuals who complete higher educational levels in almost all age groups of both sexes. Among women, only 13.6 % had completed some level of higher education in 2011, a figure that will rise to approximately 23.4 % in 2031, whereas among men this value was only 9.7 % and will also rise by 2031, reaching 15.5 %. We can expect the proportion of people with higher educational levels to continue to rise as the education of younger cohorts seems to evolve positively. This work will be particularly useful to study how the aging population and the rising levels of education can contribute to the planning and monitoring of public policies, although these findings can also be used in other research contexts. 相似文献
67.
Anna Goodman Alasdair Jones Helen Roberts Rebecca Steinbach Judith Green 《Mobilities》2014,9(2):275-293
This paper uses qualitative data from interviews with 118 young Londoners (age 12–18) to examine how the universal provision of free bus travel has affected young people’s independent mobility. Drawing on Sen’s capabilities approach, we argue that free bus travel enhanced young Londoners’ capabilities to shape their daily mobility, both directly by increasing financial access and indirectly by facilitating the acquisition of the necessary skills, travelling companions and confidence. These capabilities in turn extended both opportunity freedoms (e.g. facilitating non-‘necessary’ recreational and social trips) and process freedoms (e.g. feeling more independent by decreasing reliance on parents). Moreover, the universal nature of the entitlement rendered buses a socially inclusive way for groups to travel and spend time together, thereby enhancing group-level capabilities. We believe this attention to individual and group capabilities for self-determination provides the basis for a broader and more child-centred view of independent mobility than the typical research focus upon travelling without an adult and acquiring parental permissions. 相似文献
68.
Individual behavior under uncertainty is characterized using a new axiom, ordinal independence, which is a weakened form of the von Neumann-Morgenstern independence axiom It states that if two distributions share a tail in common, then this tail can be modified without altering the individual's preference between these distributions. Preference is determined by the tail on which the distributions differ. This axiom implies an appealing and simple functional form for a numerical representation of preferences. It generalizes the form of anticipated utility, and it explains some well-known forms of behavior, such as the Friedman-Savage paradox, that anticipated utility cannot. 相似文献
69.
70.