全文获取类型
收费全文 | 2608篇 |
免费 | 165篇 |
国内免费 | 1篇 |
专业分类
管理学 | 280篇 |
民族学 | 34篇 |
人口学 | 292篇 |
丛书文集 | 8篇 |
理论方法论 | 226篇 |
综合类 | 115篇 |
社会学 | 1296篇 |
统计学 | 523篇 |
出版年
2024年 | 3篇 |
2023年 | 38篇 |
2022年 | 34篇 |
2021年 | 44篇 |
2020年 | 114篇 |
2019年 | 107篇 |
2018年 | 216篇 |
2017年 | 237篇 |
2016年 | 186篇 |
2015年 | 110篇 |
2014年 | 134篇 |
2013年 | 456篇 |
2012年 | 236篇 |
2011年 | 112篇 |
2010年 | 93篇 |
2009年 | 84篇 |
2008年 | 78篇 |
2007年 | 60篇 |
2006年 | 53篇 |
2005年 | 46篇 |
2004年 | 39篇 |
2003年 | 50篇 |
2002年 | 49篇 |
2001年 | 31篇 |
2000年 | 22篇 |
1999年 | 14篇 |
1998年 | 8篇 |
1997年 | 9篇 |
1996年 | 9篇 |
1995年 | 9篇 |
1994年 | 11篇 |
1993年 | 5篇 |
1992年 | 7篇 |
1991年 | 7篇 |
1990年 | 7篇 |
1989年 | 10篇 |
1988年 | 8篇 |
1987年 | 5篇 |
1986年 | 5篇 |
1985年 | 5篇 |
1984年 | 2篇 |
1979年 | 2篇 |
1978年 | 2篇 |
1977年 | 2篇 |
1975年 | 3篇 |
1973年 | 3篇 |
1972年 | 1篇 |
1971年 | 2篇 |
1967年 | 1篇 |
1966年 | 1篇 |
排序方式: 共有2774条查询结果,搜索用时 78 毫秒
931.
932.
This study examines the relationships among variables that were likely to mediate the effects of exposure to domestic violence on children's internalizing problems (i.e., children's appraisals of domestic violence and their perceptions of family relationships). The study was conducted with 79 children exposed to domestic violence, including 41 boys and 38 girls, aged between 9 and 12 years old. Indicators used for children's appraisals of violence were attribution of blame and perceived threat. Children's perceptions of family relationships were based on their levels of parentification and the degree of their loyalty conflicts. A path analysis was used to verify the predictive model's pathways and to test the multiple mediator effects. Findings confirm the contribution of mediating variables and also reflect the association between self-blame and children's parentification. The results stress the relevance of evaluating the combined role of different potential mediators to provide a better understanding of the impact of domestic violence on children. 相似文献
933.
This study examines the antecedents of supply chain project success. We first propose and test a model that describes the role of relationship‐level factors (trust and asymmetric dependence) and project‐level factors (between‐firm communication and within‐firm commitment) in determining supply chain project success. We find that project‐level factors completely mediate the effect of trust on project success. We conclude that trust, despite being a stronger predictor compared to asymmetric dependence, is necessary but not sufficient for supply chain project success. We then proceed to further explore the role of these factors by introducing a categorical scheme that differentiates supply chain projects based on the decision rights configuration of each project. This categorization enables us to explore how relationship‐level and project‐level factors can have different impact on performance based on the characteristics of a supply chain project. The findings offer insights into how to effectively manage supply chain projects and inter‐firm alliances. 相似文献
934.
A parallel multi-population genetic algorithm for a constrained two-dimensional orthogonal packing problem 总被引:2,自引:2,他引:0
José Fernando Gonçalves Mauricio G. C. Resende 《Journal of Combinatorial Optimization》2011,22(2):180-201
This paper addresses a constrained two-dimensional (2D), non-guillotine restricted, packing problem, where a fixed set of
small rectangles has to be placed into a larger stock rectangle so as to maximize the value of the rectangles packed. The
algorithm we propose hybridizes a novel placement procedure with a genetic algorithm based on random keys. We propose also
a new fitness function to drive the optimization. The approach is tested on a set of instances taken from the literature and
compared with other approaches. The experimental results validate the quality of the solutions and the effectiveness of the
proposed algorithm. 相似文献
935.
Early adulthood represents a period of transition that is marked by change and exploration. For some, this transition is uncomplicated,
yet for others, it is problematic. While many studies have explored factors that predict adjustment in childhood and adolescence,
substantially less is known about childhood factors that predict adjustment during the transition into adulthood. Furthermore,
it remains unclear whether childhood factors that predict adult adjustment differ between African American and Caucasian males.
Accordingly, the current study examined childhood predictors of early adult (age 19–20) adjustment in a community sample of
397 African American and Caucasian males. Findings indicated that African American and Caucasian males who experienced high
levels of peer delinquency, depressive symptoms, and conflicted parent–child communication in childhood were more likely to
experience adjustment issues in early adulthood. For African American males, low academic achievement was important for predicting
adult adjustment, while low organization involvement uniquely predicted adult adjustment for Caucasian males. 相似文献
936.
This article describes the annual evolution of nuptiality in Spain from the beginning of the last century up to the present
day. The analysis is based on data on first marriages from population registration data (Movimiento Natural de Población)
after various adjustment and estimation operations. This source has an advantage with respect to census data, since it allows
us to follow the annual nuptiality fluctuations that are very sensitive to prevailing social and economic conditions. Over
the long term, the phases of nuptiality in Spain are comparable to those observed in Western Europe. However, leaving aside
the period disturbed by the Civil War (1936–1939), Spain does exhibit some particular features: a long interlude from 1940
to 1959 marked by late marriage, rooted in the long depression of the Spanish economy; a prolonged rise in nuptiality which
lasted until the end of the 1970s, corresponding to the late arrival of the first oil shock in Spain; and finally, a certain
delay in the decline of marriage, accompanied—since the early 2000s only—by a parallel diffusion of cohabitation. Last, Spain
is converging with Europe in another aspect that is seldom taken into account. While, from 1950 to 1980, it was one of the
few European countries to register a first marriage rate unfavourable to women, the reversal of this trend since the 1980s
has brought Spain closer to the majority of its neighbours. 相似文献
937.
As the existing comparative policy literature suggests, both ideational and institutional analyses have clear analytical value in their own terms but, under many circumstances, it is the combination of the two perspectives that allows for a full understanding of policy trajectories. In this article we suggest that, to improve our understanding of how ideas and institutions interact to produce change, it is important to break down these two overly broad concepts. This is because beyond general arguments about how ‘ideas’ and ‘institutions’ interact, students of public policy should itemize ‘ideas’ and ‘institutions’ into more focused, and empirically traceable, subcategories while recognizing the changing and contingent nature of their interaction, over time. To illustrate this, we turn to the politics of tax policy in the United States of America and the United Kingdom, tracking developments from the rise of the New Right and an aggressive income tax cutting agenda, personified by President Reagan and Prime Minister Thatcher, through to the revived debate about the legitimacy of increasing taxes on those earning the highest incomes that emerged in the era of austerity that followed the Great Recession of 2008. 相似文献
938.
董仲舒以"天命"论、"阴阳五行"说为其哲学认识论的,以"服制象天"、"象天之德"为其方法论的,以"爵弥盛者文弥缛"为其服制文饰法则等的服饰美学思想,成为千百年来中国封建社会不可移易的"礼乐文化"的规定内涵和美学原则. 相似文献
939.
Consideration of reference systems for semivalues leads us to a global representation of the action of a semivalue on a game. Using this representation, we show how to modify semivalues to take account of coalition structures on the player set. The players' allocations according to a semivalue, including a modified semivalue, can be computed by means of products of matrices obtained from the multilinear extension of the game. 相似文献
940.