全文获取类型
收费全文 | 883篇 |
免费 | 18篇 |
国内免费 | 4篇 |
专业分类
管理学 | 76篇 |
民族学 | 6篇 |
人口学 | 30篇 |
丛书文集 | 81篇 |
理论方法论 | 32篇 |
综合类 | 278篇 |
社会学 | 128篇 |
统计学 | 274篇 |
出版年
2022年 | 4篇 |
2021年 | 14篇 |
2020年 | 12篇 |
2019年 | 9篇 |
2018年 | 11篇 |
2017年 | 27篇 |
2016年 | 19篇 |
2015年 | 24篇 |
2014年 | 40篇 |
2013年 | 197篇 |
2012年 | 58篇 |
2011年 | 50篇 |
2010年 | 48篇 |
2009年 | 48篇 |
2008年 | 54篇 |
2007年 | 27篇 |
2006年 | 28篇 |
2005年 | 38篇 |
2004年 | 33篇 |
2003年 | 38篇 |
2002年 | 24篇 |
2001年 | 20篇 |
2000年 | 16篇 |
1999年 | 14篇 |
1998年 | 9篇 |
1997年 | 7篇 |
1996年 | 3篇 |
1994年 | 2篇 |
1993年 | 2篇 |
1992年 | 3篇 |
1991年 | 4篇 |
1990年 | 7篇 |
1989年 | 4篇 |
1988年 | 1篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1983年 | 3篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1976年 | 2篇 |
1966年 | 1篇 |
排序方式: 共有905条查询结果,搜索用时 187 毫秒
51.
Within social services, an increasingly significant movement supports giving “voice” to children and youth, enabling them to express their views and to have those views taken into account in matters that affect them. In this article, the author draws from narratives of young people who grew up in foster care, examining stories of their efforts to impact the course of their own lives. The article explores the ways that very specific contexts and relationships of power shaped the utterances of young people in the foster care system and distorted, muted, or amplified their abilities to express their need and interests. This is a beginning attempt to identify ways that contexts of speaking in foster care can be understood and altered in order to strengthen the capacity of young people to voice their concerns and aspirations. 相似文献
52.
The scheduling problem in production management has been studied for a considerable time, and several types of software are used. A problem arises in updating the production planning, or ‘rescheduling’, when an unexpected event occurs in the shop control. Solving this problem is difficult because the implications of such events are usually impossible to forecast. To prevent this problem, we propose to manipulate a set of equivalent schedules during the short time schedule. Then, if an unexpected event prevents realization of a given schedule, it will be possible to find an equivalent one, without full rescheduling. The primary requirement is to find a formal representation of a set of schedules. This has already been explored using CPM graphs with nodes associated to a set of tasks. We propose in this paper to use an extension of such graphs, PQR trees, that represent both precedence and group constraints. We first reiterate the notion of PQR trees. We present methods to take into account date constraints in such a structure, and we give a model for the general job-shop problem. 相似文献
53.
Berdj Kenadjian 《The American statistician》2013,67(1):2-4
U. S. National Income Series Revised—Congress Votes No on Censuses of Business and Manufactures—Britain Revises Living Cost Index-U. S. and U. K. Surveys Uncover Lacks in Statistical Training-Forthcoming Statistical Conferences 相似文献
54.
Steven L. VanderStaay 《Journal of Social Distress and the Homeless》2013,22(4):299-319
Recent attention to the use of social science research in the formation of social policy highlights the role of narratives in the mediation of the relationships between research and practice, science and policy. This paper demonstrates the value of applied narrative analysis in revealing the function of narratives in this mediation. Public debate over a universal “right to shelter” for homeless persons in Washington D. C. is the central case study. The results illustrate the usefulness of applied narrative analysis in the study of social distress and in the forging of new links between research and policy. 相似文献
55.
Yuriy S. Kharin Valeriy A. Voloshko 《Journal of statistical planning and inference》2011,141(9):3276-3288
A family of robust estimators for coefficients of Gaussian AR(p) time series under simultaneously influencing distortions of two types: outliers and missing values, is proposed. The estimators are based on special properties of the Cauchy probability distribution; consistency and the asymptotic normality of these estimators are proven. An approximate solution of the problem of minimization of the asymptotic variance within the proposed family of estimators is found. Performance of the proposed estimators is illustrated for simulated time series and for real data sets. 相似文献
56.
Ulrich Gehmann 《Culture and Organization》2013,19(2):105-119
This article outlines some basic characteristics of modern myths that fundamentally differ from the traditional myths on which most myth research is based, namely: their relation to time, and their relation to themselves. The article also takes a closer look at the implications these differences have for our present state of Being. The aim is not to offer yet another variation on the academic discussion of myths, but rather to provide a starting point for further discussion about the peculiarities and impacts pertaining to modern myths. 相似文献
57.
缩短供应链多阶响应周期的物流模式研究 总被引:6,自引:0,他引:6
为了满足最终客户的多样化、及时化的需求,供应链的物流模式成了缩短供应链多阶响应周期的一个重要的研究领域。对比传统的物流模式,快速响应的供应链物流模式的主要改进点在制造商及其以下的节点企业的物流上。四种物流模式对于缩短供应链最终用户的响应周期有极大的意义和作用,它们是:基于制造商的直销模式、以批发商为改进点的零售支持型批发物流和区域零售支持型综合批发物流,以及以零售商为切入点的产销联盟的物流模式,并且它们各自不同的适用范围取决于供应链的运作特点和行业特征。 相似文献
58.
文学经典品格谈 总被引:3,自引:0,他引:3
韦苇 《浙江师范大学学报(社会科学版)》2000,25(3):1-4
本文从已经证明是能够超越时空的、世界公认其为典范的文学作品中,归纳出些许认定文学品格的准则,并就其中的部分准则举例展开论述,对我国议论中的“百年文学经典”提出作者自己的见解。 相似文献
59.
邱正安 《济南大学学报(社会科学版)》1996,(3)
本文分析了实用单模光纤的极化模式色散及其测量方法。在实用单模光纤中,由于双折射现象导致两个正交极化模式在传榆过程中改变极化方向并产生时延差即色散,从而使光波脉冲展宽,产生误码,因此限制了光纤的通道容量和传输距离。 相似文献
60.
This paper puts forward an intelligent scheduling model based on Hopfield neural network and a unified algorithm for manufacturing. The energy computation function and its dynamic state equation are derived and discussed in detail about their coefficients (parameters) and steps (Delta t) in iteration towards convergence. The unified model is focused on the structure of the above function and equation, in which the goal and penalty items must be involved and meet different schedule models. The applications to different schedule mode including jobshop static scheduling, scheduling with due-date constraint or priority constraint, dynamic scheduling, and JIT (just in time) scheduling are discussed, and a series of examples with Gantt charts are illustrated. 相似文献