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   282篇
  免费   37篇
  国内免费   3篇
管理学   24篇
民族学   1篇
人才学   2篇
人口学   4篇
丛书文集   26篇
理论方法论   34篇
综合类   194篇
社会学   15篇
统计学   22篇
  2024年   2篇
  2023年   9篇
  2022年   4篇
  2021年   3篇
  2020年   5篇
  2019年   5篇
  2018年   7篇
  2017年   3篇
  2016年   5篇
  2015年   12篇
  2014年   19篇
  2013年   15篇
  2012年   11篇
  2011年   25篇
  2010年   21篇
  2009年   16篇
  2008年   16篇
  2007年   22篇
  2006年   18篇
  2005年   13篇
  2004年   18篇
  2003年   16篇
  2002年   16篇
  2001年   8篇
  2000年   4篇
  1999年   6篇
  1997年   2篇
  1996年   2篇
  1995年   2篇
  1994年   3篇
  1993年   1篇
  1992年   1篇
  1987年   1篇
  1985年   4篇
  1984年   3篇
  1982年   2篇
  1979年   1篇
  1978年   1篇
排序方式: 共有322条查询结果,搜索用时 15 毫秒
131.
顾逸  王勇 《学术探索》2013,(4):40-44
中美正式建交33年来,美国政府严重违背了其在“八·一七公报”中对中国的承诺,不断地对台湾出售武器,并且出售武器的性能和数量不断增加。从国际法角度分析美国对台军售:第一,美国对台军售严重违反了国际条约法的基本原则;第二,美国对台军售严重侵犯了中国的国家主权;第三,美国对台军售严重违反了不干涉内政的国际法基本原则。在此基础上,中国应该积极从国内层面和国际层面寻求国际法对策,从而敦促美国停止对台军售,促使中美关系良性发展。  相似文献   
132.
目的建立复方新斯的明眼用凝胶中维生素B6与有关物质的含量测定方法。方法采用高效液相色谱法,Eclipse XDB-C18色谱柱(4.6 mm×150 mm,5 μm)。流动相:醋酸三乙胺溶液。检测波长:290 nm。结果线性范围为1~50 μg·mL-1,r=0.999 9(n=5)。低、中、高三个浓度回收率为(100.59±0.57)%,(100.97±0.38)%,(102.20±0.06)%。结论本方法简便快速、专属性好、重复性好、易操作。  相似文献   
133.
六西格玛理论在图书馆质量管理中具有适应性,其核心思想与内容同图书馆管理的观念和许多实践做法不谋而合。六西格玛理论在图书馆的应用程序包括评价与定义、测算和分析、改进与控制等阶段。图书馆管理研究的深化与实践的发展,将会进一步凸显六西格玛理论的价值,其在图书馆的应用范围将不断拓宽。  相似文献   
134.
Maximal oxygen consumption (VO2max) is the standard measurement used to quantify cardiovascular functional capacity and aerobic fitness. Unfortunately, it is a costly, impractical and labour-intensive measure to obtain. The 6-min walk test (6MWT) also assesses cardiopulmonary function, but in contrast to the VO2max test, it is inexpensive and can be performed almost anywhere. Various medical studies have addressed the correlation between VO2max and 6MWT in patients with chronic heart failure. Of particular interest, from a medical point of view, is the conditional correlation between the two measures given the individual's height, weight, age and gender. In this paper, we have calculated the maximum likelihood estimate of the conditional correlation in patients with chronic heart failure under the assumption of skew normality. Data were recorded from 98 patients in the Operative Unit of Thoracic Surgery in Bari, Italy. The estimated conditional correlation was found to be much smaller than estimated marginal correlations reported in the medical literature.  相似文献   
135.
本文研究了银(Ⅰ)对亚铁氰化钾与邻菲罗啉(O-phen)显色反应的催化效应.以此为基础,建立了痕量银(Ⅰ)的催化分光光度分析法.本法的灵敏度为1.0×10~(-3)μg/mL,线性范围为0~4μg/25mL,用于水样中痕量银(Ⅰ)的测定.  相似文献   
136.
A treatment system consisting of an assessment/referral service, a detox, a mission, a hospital recovery unit, and three recovery homes was examined using a retrospective client-tracking approach over 1 year. There were 4,187 admissions to the system accounted for by 1,522 individuals; system users tended to be males, unmarried, unemployed, and in their 30s and 40s. The best predictor of readmission to the system after treatment was prior system use. Use patterns and referral data indicated that perceived gatekeepers (i.e., detoxication and assessment services) were not consistently coordinating the system and that more socially stable clients appeared to be more likely to be involved with non-addiction specific services (i.e., medical, general counselling).  相似文献   
137.
Despite its ever‐present and at times escalating significance, conspiracy theory is an under‐researched topic in the social sciences. This paper analyses the political influence of conspiracy theories by drawing on semi‐structured interviews with the representatives of four major political parties from the Turkish parliament about widespread anti‐Semitic conspiracy theories regarding Dönmes (converts). The findings indicate that right‐wing political parties problematize the secret character of the Dönme community and use the conspiracy theories to express their own ontological insecurities emerging from the Sèvres syndrome. Left‐wing and liberal parties conversely dissociate themselves from the conspiratorial rhetoric. The research concludes that the political parties reject or accept the conspiracy theories rationally and in alignment with their own ontological insecurities; by doing so, they pragmatically confirm their individual ideological perspective.  相似文献   
138.
139.
The extension of social protection to all has become a central policy objective, both nationally and internationally. A considerable number of middle‐ and low‐income countries have undertaken substantial efforts to extend social protection, while the international community reaffirmed its commitment to the extension of social protection through the adoption of the ILO Recommendation concerning National Floors of Social Protection, No. 202 (2012). This article reviews the legal provisions and the implementation of the Indian Mahatma Gandhi National Rural Employment Guarantee Act (MGNREGA), legislated in 2005, and does so in the light of the more recent provisions of ILO Recommendation No. 202. Since its introduction ten years ago, MGNREGA has provided a source of income to rural workers, increased wage rates, achieved high female participation rates and created durable assets. India's local governance bodies, Panchayati Raj Institutions (PRI), have been empowered and involved in the processes of planning and monitoring. However, despite successes, there have been considerable shortcomings in implementation. This article highlights two central themes: first, the innovative policy framework of the Act, which brings together rights‐based entitlements, demand‐driven employment, and citizen‐centred monitoring. Second, it assesses the accessibility and adequacy of benefits in the implementation of MGNREGA. We conclude that MGNREGA offers potential for South‐South learning, both in terms of policy‐design and implementation.  相似文献   
140.
A review of the literature indicates that no single exchange rate model has been able to track successfully the movements of the Canadian dollar for both the 1970–1976 period and the period thereafter. The purchasing power parity model, irrespective of whether based on relative wholesale prices, unit labor costs, GNP deflators, or export prices performs very poorly; the monetarist models collapse because of their strict adherence to the purchasing power parity and interest rate parity assumptions; the portfolio demand models require a significant adjustment for the post-1976 period. This paper presents a medium-term eclectic model of the global exchange rate of the Canadian dollar and examines a spectrum of broad issues that reflect on the efficiency of the foreign exchange market of Canada. These issues are basically related to the interest parity assumption, the role of speculation, and the test of rational expectations. The global exchange rate is defined as the value of the Canadian dollar measured in terms of a unit of basket of currencies comprising currencies of France, West Germany, Japan, the U.K., and the USA. The model belongs to the same genre of balance of payments structural models that explain the exchange rates by balancing demand and supply of foreign currencies. The model simultaneously explains both spot and forward rates, and it has been estimated and tested by using the quarterly data for 1971–1981.  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