首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   2066篇
  免费   88篇
管理学   393篇
民族学   21篇
人口学   217篇
丛书文集   9篇
理论方法论   236篇
综合类   53篇
社会学   915篇
统计学   310篇
  2024年   6篇
  2023年   30篇
  2022年   16篇
  2021年   31篇
  2020年   64篇
  2019年   106篇
  2018年   115篇
  2017年   102篇
  2016年   126篇
  2015年   73篇
  2014年   107篇
  2013年   263篇
  2012年   121篇
  2011年   104篇
  2010年   64篇
  2009年   74篇
  2008年   85篇
  2007年   74篇
  2006年   44篇
  2005年   65篇
  2004年   63篇
  2003年   50篇
  2002年   53篇
  2001年   46篇
  2000年   27篇
  1999年   29篇
  1998年   21篇
  1997年   19篇
  1996年   14篇
  1995年   16篇
  1994年   11篇
  1993年   12篇
  1992年   7篇
  1991年   8篇
  1990年   10篇
  1989年   5篇
  1988年   6篇
  1987年   7篇
  1986年   11篇
  1985年   10篇
  1984年   10篇
  1983年   7篇
  1981年   3篇
  1980年   4篇
  1979年   7篇
  1976年   3篇
  1975年   3篇
  1974年   6篇
  1972年   4篇
  1969年   2篇
排序方式: 共有2154条查询结果,搜索用时 15 毫秒
21.
Book reviews     
Statistical Papers -  相似文献   
22.
This article looks at STTEP, an outreach project currently housed at the University of Pretoria, which concentrates on the teaching of western orchestral instruments, plus background areas such as music theory, to disadvantaged children and youth from a variety of townships around Pretoria, South Africa. STTEP’s direction can well be described as ‘right’ – pupils are already surrounded by all kinds of global phenomena, and their formal music studies in western classical music are not making them forget their roots. In fact, the contrary has been found to be the case and some interesting cultural fusions are already seen – always a sign of a living culture.  相似文献   
23.
The liberalization of international financial flows and foreign direct investment has induced countries to use diverse measures to attract inflow of foreign capital and foreign direct investment, which is expected to have a positive effect on the growth of GDP and thus a positive effect on social welfare. Tax exemption, reduction of tax rate, tax holiday, or diverse subsidies are some of the most important measures used. In this paper we study international tax cooperation, i.e., countries change and especially reduce tax rate for corporate income or for asset revenues to attract inflow of foreign direct investment. Both theoretical and empirical studies have shown the sensibility of foreign direct investment decision with respect to tax rate differences between home countries and host countries. In general, more inflow of foreign direct investment can be expected if the tax rate of the home country is lower than that of foreign countries. This is the main reason for international tax cooperation. In this paper we propose a simple model to prove the sub-optimal Nash non cooperative solution in a two-country tax-competition game. The model shows that international tax cooperation can improve welfare of the participating countries. How to reach a cooperative solution for an international tax competition game (ITCG) is therefore an important issue for further discussions and studies. International institutions can play a crucial role to reach international tax cooperation or international tax harmonization.  相似文献   
24.
This paper compares legal approaches to foundations in six economically well-developed democracies (USA, England and Wales, Germany, Austria, France and the Netherlands). ‘Foundations’ refers to ‘non-governmental, non-membership, organisations, recognised as a legal category with a purpose in the general interest’. This covers the common field of the common law's charity and the civil law's foundation as a legal person. The countries organise public supervision of foundations in very different ways. Mostly there is governmental involvement or involvement of an independent body in the establishment and governmental supervision of foundations in action. In a few cases, the supervisory power—concerning the foundations' activities, not their establishment—is with judicial authorities. Access to information of foundations (registration) and possible requests for sanctions by interested parties are also rather different. Not all rules are in accordance with the freedom of organisation and some are less desirable. The conclusion is that a balance between the freedom of the foundation (board), the protection of the public order and the protection of the interests of others can be found in a system with systematic supervision at the establishment- and later practice—by governmental or independent authorities or in a system with good registration and incidental supervision by judicial authorities, also at the request of interested parties. Both have their advantages and disadvantages.  相似文献   
25.
Both published results from the 1930, 1947, 1960 and 1971 censuses and unpublished ones are used to examine the influence that religious denomination, socio-economic group and region exerted on the fertility of marriages contracted between 1876 and 1959. A theory formulated by Lesthaeghe and Wilson on the relation between modes of production and secularization and the pace of fertility decline in Western Europe offers — in combination with van Heek's views on the special position of Dutch Roman Catholicism — a starting point for an explanation of why the fertility decline of Roman Catholics, self-employed and agricultural labourers lagged behind.  相似文献   
26.
Research on firm search stresses the need for firms to adapt and align concurrently with their environment to optimize the ability to sense and seize opportunities for sustained performance. We postulate resource scarcity as an important contingency factor for the search-performance relationship, and assess its joint influence with high and low dynamism. Using a dataset spanning 23 years, we examine the performance implications of combinations of internal and external exploratory and exploitative search in resource-scarce environments, under conditions of high and low dynamism. We find that resource scarcity is an important condition for performance stemming from exploratory and exploitative search: even under conditions that involve low dynamism, but joined with resource scarcity, firms may benefit from pursuing exploratory and exploitative knowledge simultaneously.  相似文献   
27.
Axiomatizations of the normalized Banzhaf value and the Shapley value   总被引:1,自引:1,他引:0  
A cooperative game with transferable utilities– or simply a TU-game – describes a situation in which players can obtain certain payoffs by cooperation. A solution concept for these games is a function which assigns to every such a game a distribution of payoffs over the players in the game. Famous solution concepts for TU-games are the Shapley value and the Banzhaf value. Both solution concepts have been axiomatized in various ways. An important difference between these two solution concepts is the fact that the Shapley value always distributes the payoff that can be obtained by the `grand coalition' consisting of all players cooperating together while the Banzhaf value does not satisfy this property, i.e., the Banzhaf value is not efficient. In this paper we consider the normalized Banzhaf value which distributes the payoff that can be obtained by the `grand coalition' proportional to the Banzhaf values of the players. This value does not satisfy certain axioms underlying the Banzhaf value. In this paper we introduce some new axioms that characterize the normalized Banzhaf value. We also provide an axiomatization of the Shapley value using similar axioms. Received: 10 April 1996 / Accepted: 2 June 1997  相似文献   
28.
As the medical delivery system undergoes fundamental change, there is a growing pressure on hospitals to form networks with physicians. The prime motivation for these entities is to preserve market share and fill beds. There is likewise intense pressure on physicians to join them, even if these networks do not serve their best interests, or the goal of fostering physician-centered practice. A transformation is under way, however, that may well place doctors again in the central role of guiding the new modes of medical practice in the United States.  相似文献   
29.
Economics of Radiation Protection: Equity Considerations   总被引:1,自引:1,他引:0  
In order to implement cost-benefit analysis of protective actions to reduce radiological exposures, one needs to attribute a monetary value to the avoided exposure. Recently, the International Commission on Radiological Protection has stressed the need to take into consideration not only the collective exposure to ionising radiation but also its dispersion in the population. In this paper, by using some well known and some recent results in the economics of uncertainty, we discuss how to integrate these recommendations in the valuation of the benefit of protection.  相似文献   
30.
In recent years, solution‐focused parenting support has been developed and implemented as a promising brief and strength‐based approach. Given the fundamental differences between solution‐focused and the historically more common problem‐focused parenting support and the complexity of transforming professional practice, an actual shift towards solution‐focused parenting support can be expected to be limited up to now. However, because research into the specific communication characteristics of professional parenting support is currently lacking, no conclusion can be drawn at present. Therefore, this study aims to explore the current problem‐ and solution‐focused characteristics of parenting support in the Dutch youth healthcare (YH). In total, 15 support sessions performed by 10 public health nurses were audio recorded and transcribed verbatim. A detailed qualitative content analysis of professional communication was conducted to identify problem‐ and solution‐focused factual, expressive, relational and appealing aspects of parenting support. Problem‐focused characteristics dominated all sessions of parenting support. This study is the first to thoroughly analyse the problem‐focused and solution‐focused communication characteristics of professional parenting support using a qualitative content analysis. Parenting support practice in the Dutch YH did not shift substantially to a solution‐focused approach. More effort is required to stimulate and facilitate this professional transformation.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号