全文获取类型
收费全文 | 16087篇 |
免费 | 492篇 |
国内免费 | 191篇 |
专业分类
管理学 | 1578篇 |
劳动科学 | 2篇 |
民族学 | 122篇 |
人才学 | 1篇 |
人口学 | 392篇 |
丛书文集 | 1022篇 |
理论方法论 | 529篇 |
综合类 | 9291篇 |
社会学 | 1203篇 |
统计学 | 2630篇 |
出版年
2024年 | 23篇 |
2023年 | 139篇 |
2022年 | 136篇 |
2021年 | 181篇 |
2020年 | 303篇 |
2019年 | 353篇 |
2018年 | 393篇 |
2017年 | 482篇 |
2016年 | 432篇 |
2015年 | 507篇 |
2014年 | 825篇 |
2013年 | 1607篇 |
2012年 | 1079篇 |
2011年 | 1093篇 |
2010年 | 871篇 |
2009年 | 836篇 |
2008年 | 954篇 |
2007年 | 1053篇 |
2006年 | 993篇 |
2005年 | 874篇 |
2004年 | 761篇 |
2003年 | 639篇 |
2002年 | 523篇 |
2001年 | 399篇 |
2000年 | 295篇 |
1999年 | 183篇 |
1998年 | 112篇 |
1997年 | 101篇 |
1996年 | 109篇 |
1995年 | 89篇 |
1994年 | 72篇 |
1993年 | 65篇 |
1992年 | 52篇 |
1991年 | 27篇 |
1990年 | 31篇 |
1989年 | 39篇 |
1988年 | 31篇 |
1987年 | 26篇 |
1986年 | 22篇 |
1985年 | 15篇 |
1984年 | 15篇 |
1983年 | 7篇 |
1982年 | 6篇 |
1981年 | 9篇 |
1980年 | 2篇 |
1979年 | 2篇 |
1978年 | 1篇 |
1977年 | 2篇 |
1975年 | 1篇 |
排序方式: 共有10000条查询结果,搜索用时 109 毫秒
91.
Alan Phillips Alan Ebbutt Lesley France David Morgan Mick Ireson Lesley Struthers Guenter Heimann 《Pharmaceutical statistics》2003,2(4):241-251
The International Conference on Harmonisation guideline ‘Statistical Principles for Clinical Trials’ was adopted by the Committee for Proprietary Medicinal Products (CPMP) in March 1998, and consequently is operational in Europe. Since then more detailed guidance on selected topics has been issued by the CPMP in the form of ‘Points to Consider’ documents. The intent of these was to give guidance particularly to non‐statistical reviewers within regulatory authorities, although of course they also provide a good source of information for pharmaceutical industry statisticians. In addition, the Food and Drug Administration has recently issued a draft guideline on data monitoring committees. In November 2002 a one‐day discussion forum was held in London by Statisticians in the Pharmaceutical Industry (PSI). The aim of the meeting was to discuss how statisticians were responding to some of the issues covered in these new guidelines, and to document consensus views where they existed. The forum was attended by industry, academic and regulatory statisticians. This paper outlines the questions raised, resulting discussions and consensus views reached. It is clear from the guidelines and discussions at the workshop that the statistical analysis strategy must be planned during the design phase of a clinical trial and carefully documented. Once the study is complete the analysis strategy should be thoughtfully executed and the findings reported. Copyright © 2003 John Wiley & Sons, Ltd. 相似文献
92.
研究了Banach空间中的非线性脉冲Volterra积分方程的Lploc解的紧性与连通性. 相似文献
93.
吴文强 《广东工业大学学报(社会科学版)》2003,3(2):33-35
文章论述了利用财务指标分析法及判别分析法 ,对高速公路公司财务危机进行预测和警报 ,并运用多元判别分析法推导出高速公路行业的财务预警模型 相似文献
94.
陈作明 《重庆交通学院学报(社会科学版)》2004,4(1):18-20
对高等教育私营化这一国际化趋势进行初步探索,分析高等教育私营化带来的利与弊。结合我国高等教育的现状,探讨如何应对高等教育私营化问题及其对中国的启示。 相似文献
95.
Roel Jennissen 《Revue europeenne de demographie》2003,19(2):171-198
This paper aims to estimate theinfluence of economic determinants on netinternational migration in Western Europe inthe period 1960–1998. Net migration rates(i.e., population growth minus natural increase,divided by the midyear population) constitutethe dependent variable. The economicdeterminants used in this study are GDP percapita, unemployment, and average educationallevel (amount of human capital) of thepopulation. Time series regression models havebeen used in country-specific analyses. Inaddition, a pooled cross-sectional time seriesanalysis has been made. The analyses suggestthat GDP per capita has a positive effect andunemployment a negative effect on a country'snet international migration. 相似文献
96.
In relation to mental health, it is clear that medicalized underpinnings,the provision of a clinically orientated evidence base for practiceand the need to contain risk continue to be prioritized,particularly when compulsory intervention is considered. Thisis despite the increasing influence of a citizenship and socialjustice agenda which is being promoted by psychiatrists involvedin the development of postpsychiatry, as wellas by service users/survivors. These drivers are not mutuallyexclusive, but in the context of compulsory treatment, thereare clear tensions. In this article, the policy surroundingmental health and compulsory intervention in Australia and inEngland and Wales is explored. In the context of this discussion,three ways in which current government policy can be interpretedare examined and links made between these interpretations anddifferent ways of viewing the relationship between mental healthand community capacity building. With regard to social workpractice, it is argued that a response to mental ill healthwhich concentrates on an individualized diagnose andtreat approach, which particularly comes to the foreat times of compulsory intervention, has limited capacity tofacilitate community engagement, foster social inclusion andgenerate reciprocal dynamics between positive mental healthand community capacity building. 相似文献
97.
根据英国学者Tom Hutchinson和Alan Waters的需求分析理论,通过问卷形式对合肥工业大学非英语专业110名研一新生进行调查,并对结果进行分析,旨在了解他们的目标需求和学习需求,设计行之有效的英语课堂活动,以提高他们的说写能力及国际学术交流能力。 相似文献
98.
近年来 ,中国城市建筑火灾发生率呈上升趋势 ,仅 1999年 ,全国共发生建筑火灾 18万起 ,比前一年增长 4 1% ;死亡 2 70 0多人 ,比前一年增长 15 % ,直接经济损失多达 14亿元。 相似文献
99.
贵州省主导产业选择的投入产出分析 总被引:1,自引:0,他引:1
叶文春 《贵州民族学院学报》2008,(1):138-142
正确地选择主导产业对一个地区的经济发展有着至关重要的作用。本文以贵州省投入产出表为依据,运用投入产出分析方法,对地区主导产业的选择进行探讨,为贵州省产业结构调整和区域经济发展规划提供经济学意义的理论参考。 相似文献
100.
通过对环境生态成本的分析,根据上海市2002年的投入产出表,建立了基于资源一经济一环境绿色投入产出表的绿色GDP核算方法。利用这一方法对2010年上海世博会对上海经济一环境影响进行分析研究,结果反映了上海世博会对上海的综合影响。 相似文献