全文获取类型
收费全文 | 38288篇 |
免费 | 636篇 |
国内免费 | 2篇 |
专业分类
管理学 | 5121篇 |
民族学 | 182篇 |
人才学 | 13篇 |
人口学 | 3673篇 |
丛书文集 | 183篇 |
教育普及 | 3篇 |
理论方法论 | 3493篇 |
现状及发展 | 2篇 |
综合类 | 466篇 |
社会学 | 18524篇 |
统计学 | 7266篇 |
出版年
2023年 | 198篇 |
2021年 | 186篇 |
2020年 | 543篇 |
2019年 | 789篇 |
2018年 | 868篇 |
2017年 | 1202篇 |
2016年 | 892篇 |
2015年 | 648篇 |
2014年 | 833篇 |
2013年 | 6548篇 |
2012年 | 1196篇 |
2011年 | 1081篇 |
2010年 | 872篇 |
2009年 | 854篇 |
2008年 | 950篇 |
2007年 | 963篇 |
2006年 | 885篇 |
2005年 | 881篇 |
2004年 | 840篇 |
2003年 | 734篇 |
2002年 | 821篇 |
2001年 | 887篇 |
2000年 | 834篇 |
1999年 | 800篇 |
1998年 | 638篇 |
1997年 | 595篇 |
1996年 | 572篇 |
1995年 | 570篇 |
1994年 | 547篇 |
1993年 | 542篇 |
1992年 | 594篇 |
1991年 | 583篇 |
1990年 | 592篇 |
1989年 | 565篇 |
1988年 | 566篇 |
1987年 | 515篇 |
1986年 | 505篇 |
1985年 | 543篇 |
1984年 | 539篇 |
1983年 | 523篇 |
1982年 | 411篇 |
1981年 | 368篇 |
1980年 | 378篇 |
1979年 | 443篇 |
1978年 | 346篇 |
1977年 | 315篇 |
1976年 | 314篇 |
1975年 | 270篇 |
1974年 | 254篇 |
1973年 | 213篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
From the inception of the proportional representation movement it has been an issue whether larger parties are favored at
the expense of smaller parties in one apportionment of seats as compared to another apportionment. A number of methods have
been proposed and are used in countries with a proportional representation system. These apportionment methods exhibit a regularity
of order, as discussed in the present paper, that captures the preferential treatment of larger versus smaller parties. This
order, namely majorization, permits the comparison of seat allocations in two apportionments. For divisor methods, we show
that one method is majorized by another method if and only if their signpost ratios are increasing. This criterion is satisfied
for the divisor methods with power-mean rounding, and for the divisor methods with stationary rounding. Majorization places
the five traditional apportionment methods in the order as they are known to favor larger parties over smaller parties: Adams,
Dean, Hill, Webster, and Jefferson.
Received: 5 August 2000/Accepted: 24 October 2001 相似文献
2.
The authors maintain that the social learning theory of career development and counseling has not been applied to diverse populations. To address this gap in the literature, the authors conducted a qualitative analysis of interviews with 21 middle school students in a low‐income, culturally diverse, inner‐city public school. Four themes emerged, reflecting the influence of discrimination on participants' career learning: contextual barriers and resources for learning, and psychological barriers and resources for learning. The authors provide a conceptual framework for assessing resources and barriers and a rationale for why these aspects often remain hidden or unexamined in career assessment with clients who are vulnerable to discrimination. 相似文献
3.
Ackerly Brooke A. 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2002,13(3):322-324
VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - 相似文献
4.
Measures of Multigroup Segregation 总被引:3,自引:0,他引:3
In this paper we derive and evaluate measures of multigroup segregation. After describing four ways to conceptualize the measurement of multigroup segregation—as the disproportionality in group (e.g., race) proportions across organizational units (e.g., schools or census tracts), as the strength of association between nominal variables indexing group and organizational unit membership, as the ratio of between–unit diversity to total diversity, and as the weighted average of two–group segregation indices—we derive six multigroup segregation indices: a dissimilarity index (D), a Gini index (G), an information theory index (H), a squared coefficient of variation index (C), a relative diversity index (R), and a normalized exposure index (P). We evaluate these six indices against a set of seven desirable properties of segregation indices. We conclude that the information theory index H is the most conceptually and mathematically satisfactory index, since it alone obeys the principle of transfers in the multigroup case. Moreover, H is the only multigroup index that can be decomposed into a sum of between– and within–group components. 相似文献
5.
Existence and Nash implementation of efficient sharing rules for a commonly owned technology 总被引:2,自引:0,他引:2
Suppose that a group of individuals owns collectively a technology which produces a consumption good by means of a (possibly
heterogeneous) input. A sharing rule associates input contributions with a vector of consumptions that are technologically
feasible. We show that the set of allocations obtained by any continuous sharing rule contains Pareto efficient allocations.
We also present a mechanism that implements in Nash equilibrium the Pareto efficient allocations contained in an arbitrary
sharing rule.
Received: 29 June 1998/Accepted: 15 November 2000 相似文献
6.
Conflict over water resources is a major problem throughout the world. This essay describes the long-standing and often successful effort to insulate decisions on how to allot water among contending users, and how to reduce water pollution along a 5000-mile international border. The effort has been fraught with political and scientific complexity. Yet, after more than 90 years of experience, it provides a model that other nations are beginning to examine as relevant to their own efforts to find solutions. 相似文献
7.
A.M. Mathai 《Revue canadienne de statistique》1993,21(3):277-283
The product of two independent or dependent scalar normal variables, sums of products, sample covariances, and general bilinear forms are considered. Their distributions are shown to belong to a class called generalized Laplacian. A growth-decay mechanism is also shown to produce such a generalized Laplacian. Sets of necessary and sufficient conditions are derived for bilinear forms to belong to this class. As a generalization, the distributions of rectangular matrices associated with multivariate normal random vectors are also discussed. 相似文献
8.
9.
The authors examined the impact of sense of coherence on the career thought processes of a sample of college students. A. Antonovsky (1987) defined sense of coherence as the global orientation that the world is comprehensible, manageable, and meaningful. Study participants completed the Sense of Coherence Scale (A. Antonovsky, 1987) and the Career Thoughts Inventory (CTI; J. P. Sampson, G. W. Peterson, J. G. Lenz, R. C. Reardon, & D. E. Saunders, 1996). Multivariate tests indicated a medium relationship between sense of coherence and CTI Total and subscale scores; sense of coherence accounted for 14% of the variance. Univariate tests also indicated a medium relationship between sense of coherence and each subscale. 相似文献
10.
Colin C. Williams 《The Sociological review》2002,50(4):525-542
A recurring theme across the social sciences is that non‐capitalist production is disappearing albeit slowly and unevenly, and is being replaced by a commodified economy in which goods and services are produced by capitalist firms for a profit under conditions of market exchange. In this paper, however, I evaluate critically this commodification thesis. Even in the heartland of commoditisation ‐ the advanced economies. Large economic spaces are identified where alternative economic relations and motives prevail. Rather than view them as leftovers of pre‐capitalist formations, this paper argues that they are the result of both the contradictions inherent in the structural shifts associated with the pursuit of commodification as well as the existence of‘cultures of resistance’, As such, they are viewed as 'spaces of hope’which highlight the demonstrable construction and practice of alternative social relations and logic's of work outside profit‐motivated market‐oriented exchange. 相似文献