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   3107篇
  免费   95篇
  国内免费   278篇
管理学   138篇
劳动科学   2篇
民族学   23篇
人口学   117篇
丛书文集   405篇
理论方法论   289篇
综合类   1712篇
社会学   584篇
统计学   210篇
  2024年   6篇
  2023年   29篇
  2022年   40篇
  2021年   39篇
  2020年   74篇
  2019年   82篇
  2018年   95篇
  2017年   95篇
  2016年   91篇
  2015年   122篇
  2014年   163篇
  2013年   478篇
  2012年   213篇
  2011年   207篇
  2010年   169篇
  2009年   193篇
  2008年   170篇
  2007年   189篇
  2006年   196篇
  2005年   154篇
  2004年   140篇
  2003年   128篇
  2002年   113篇
  2001年   109篇
  2000年   52篇
  1999年   34篇
  1998年   22篇
  1997年   16篇
  1996年   16篇
  1995年   7篇
  1994年   11篇
  1993年   3篇
  1992年   5篇
  1991年   4篇
  1990年   4篇
  1989年   2篇
  1988年   3篇
  1987年   3篇
  1986年   1篇
  1985年   1篇
  1977年   1篇
排序方式: 共有3480条查询结果,搜索用时 0 毫秒
51.
五四的知识分子的经历大都有弃医从文的现象,以此为切入点来探讨这批知识分子在面对现代文明与传统文化时的复杂态度.并试图通过还原历史语境的方式来阐释出他们从反传统到返传统的逻辑理路。  相似文献   
52.
This paper studies philanthropic behaviour in terms of money and time contributions for charitable organisations. Using a unique dataset, which is representative of the German population, we examine the pure contributions of individuals who give either money or time as well as joint contributions of individuals who give both money and time. We find that the sequential decisions to give to charity and how much to give can be explained by different socio-economic characteristics. We report particularly pronounced gender differences among pure contributions, an interesting pattern of human capital variables such as income and education, and possible differences in the type of philanthropic goods.  相似文献   
53.
Differences in patient characteristics, including age, sex, and race influence the safety and effectiveness of drugs, biologic products, and medical devices. Here we provide a summary of the topics discussed during the opening panel at the 2018 Johns Hopkins Center for Excellence in Regulatory Science and Innovation symposium on Assessing and Communicating Heterogeneity of Treatment Effects for Patient Subpopulations: Challenges and Opportunities. The goal of this session was to provide a brief overview of FDA-regulated therapeutics, including drugs, biologics and medical devices, and some of the major sources of heterogeneity of treatment effects (HTE) related to patient demographics, such as age, sex and race. The panel discussed the US Food and Drug Administration's role in reviewing and regulating drugs, devices, and biologic products and the challenges associated with ensuring that diverse patient populations benefit from these therapeutics. Ultimately, ensuring diverse demographic inclusion in clinical trials, and designing basic and clinical research studies to account for the intended patient population's age, sex, race, and genetic factors among other characteristics, will lead to better, safer therapies for diverse patient populations.  相似文献   
54.
ABSTRACT

The paper considers the case of vegetovascular dystonia, one of the most typical and common “Soviet” diseases. This syndrome emerged in Soviet medicine after World War II, and very quickly become a popular diagnosis among physicians. The author describes how the construct of vegetovascular dystonia was formed and developed, what changes it underwent, and what affected those changes. The concept and history of vegetovascular dystonia can provide an understanding of Soviet medicine and health science in general.  相似文献   
55.
青年是医院的未来,引导青年医务人员树立坚定而充沛的文化自信是激发其积极性、主动性和创造性的重要方式。常州市第一人民医院以涵养文化自信为着力点打造青年文化品牌“青之源”,通过营造学习创新氛围、建设团日活动体系、搭建阅读分享平台、探索涵养青年文化自信的品牌塑造路径等方式,动力、活力、能力三源合流,为青年成长提供正向激励和人文滋养。  相似文献   
56.
In late-phase confirmatory clinical trials in the oncology field, time-to-event (TTE) endpoints are commonly used as primary endpoints for establishing the efficacy of investigational therapies. Among these TTE endpoints, overall survival (OS) is always considered as the gold standard. However, OS data can take years to mature, and its use for measurement of efficacy can be confounded by the use of post-treatment rescue therapies or supportive care. Therefore, to accelerate the development process and better characterize the treatment effect of new investigational therapies, other TTE endpoints such as progression-free survival and event-free survival (EFS) are applied as primary efficacy endpoints in some confirmatory trials, either as a surrogate for OS or as a direct measure of clinical benefits. For evaluating novel treatments for acute myeloid leukemia, EFS has been gradually recognized as a direct measure of clinical benefits. However, the application of an EFS endpoint is still controversial mainly due to the debate surrounding definition of treatment failure (TF) events. In this article, we investigate the EFS endpoint with the most conservative definition for the timing of TF, which is Day 1 since randomization. Specifically, the corresponding non-proportional hazard pattern of the EFS endpoint is investigated with both analytical and numerical approaches.  相似文献   
57.
地下钱庄并非规范的法律概念,我国对地下钱庄法律价值的判断是基于其组织的非正规性而非其行为的违法性,对地下钱庄行为更多地是借助刑法规制和执法严惩而非制度规范和监管指引。以刑法与经济法互动为视角,对地下钱庄所从事的三类主要业务进行具体分析,对相关法律法规予以细致梳理和客观评价,并结合我国金融生态环境和地下钱庄行为特点提出相应的立法建议和防控对策。提出在治理地下钱庄的过程中应当做到经济法规制在前、刑法惩治在后,监管在前、执法在后,宽严相济、疏堵结合。  相似文献   
58.
通过对临床医学、护理学专业2010届120名本科毕业生的书面问卷调查,对少数民族高等院校医学毕业生的择业观影响因素、择业期望值、求职成功制约要素等进行分析,发现了少数民族高等院校医学毕业生的择业观呈现多元化;择业期望值脱离现实需要;择业心理复杂多样;就业心态存在城市情结;偏执心理、攀比心理、自卑心理等负面心理因素影响择业成功的事实,研究并提出了应对上述问题的对策。  相似文献   
59.
奥巴马政府上台后,其主要致力于应对金融危机和反恐战争.对朝政策上,其在"巧实力"外交理念的指导下,寻求在外交、经济、军事、政治、法律和文化等所有政策工具中选择正确的工具或组合.针对朝核问题的敏感性和脆弱性,奥巴马政府倾向于"冷处理",继而"多管齐下",在合作外交的框架内展开更加灵活的外交活动,促使朝鲜重返六方会谈,继续以对话方式处理相关问题,不过美国也适度增强了对朝鲜的威慑力量,奥巴马政府仍对美朝关系正常化持一种谨慎态度.  相似文献   
60.
絮凝床是中山大学开发的一种新型水处理设备.这种水处理技术在我省已用于包括含动、植物油类的污水处理工程中,1996年我院首次把这种设备用于茂名热电厂合油(矿物油)污水处理,工程建成投产以来取得了令人满意的效果。  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