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   10949篇
  免费   485篇
  国内免费   2篇
  2023年   71篇
  2022年   72篇
  2021年   131篇
  2020年   194篇
  2019年   241篇
  2018年   306篇
  2017年   332篇
  2016年   337篇
  2015年   273篇
  2014年   317篇
  2013年   1336篇
  2012年   489篇
  2011年   525篇
  2010年   313篇
  2009年   352篇
  2008年   481篇
  2007年   435篇
  2006年   390篇
  2005年   360篇
  2004年   367篇
  2003年   358篇
  2002年   329篇
  2001年   183篇
  2000年   182篇
  1999年   170篇
  1998年   165篇
  1997年   118篇
  1996年   107篇
  1995年   120篇
  1994年   100篇
  1993年   83篇
  1992年   108篇
  1991年   96篇
  1990年   102篇
  1989年   108篇
  1988年   99篇
  1987年   75篇
  1986年   86篇
  1985年   105篇
  1984年   94篇
  1983年   87篇
  1982年   76篇
  1981年   71篇
  1980年   70篇
  1979年   58篇
  1978年   74篇
  1977年   63篇
  1976年   65篇
  1975年   63篇
  1974年   61篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
201.
Farmer P 《America》1995,173(2):13-17
  相似文献   
202.
203.
Ren van Woudenberg 《Ratio》1995,8(2):170-188
This paper is a contribution to the debate on epistemic foundationalism. Section I expounds and criticises Hans Albert's critical rationalist antifoundationalism position. Section I1 discusses Karl-Otto Apel's ‘transcendental pragmatic’ argument for ultimate epistemic foundations. Section III suggests how the latter argument can be restated so as to avoid ambiguity and yield a plausible case for epistemic foundationalism.  相似文献   
204.
205.
I am indebted to Graham Haydon for his help with the correct English wording of my thoughts.  相似文献   
206.
Two questions were addressed in the present study: (1) Do autistic and normally developing children exhibit regionally specific differences in electroencephalographic (EEG) activity? (2) Do subgroups of autistic children classified according to Wing and Gould's (1979) system which emphasizes degree of social impairment exhibit distinct patterns of EEG activity? Twenty-eight children with autism (5 to 18 years of age) and two groups of normally developing children (one matched on chronological age and the other on receptive language level) participated. EEG was recorded from left and right frontal, temporal, and parietal regions during an alert baseline condition. Compared to normally developing children, autistic children exhibited reduced EEG power in the frontal and temporal regions, but not in the parietal region. Differences were more prominent in the left than the right hemisphere. Furthermore, subgroups of autistic children based on Wing and Gould's system displayed distinct patterns of brain activity. Compared to autistic children classified as “active-but-odd,” “passive” autistic children displayed reduced alpha EEG power in the frontal region.  相似文献   
207.
Paul J. Poppen 《Sex roles》1995,32(7-8):545-555
The role that gender plays in influencing the prevalence and patterns of sexual risk taking was examined in 245 college students from two samples (about 60% of whom were White, 20% Asian, 10% Black, and 6% Hispanic). The sexual experiences of these students were analyzed for potential risk associated with type of partners or sexual practices. Consistent with previous findings, males engaged in more risk taking behaviors relevant to partner choice (e.g., more partners and more casual knowledge of partners) and sexual practices (e.g., lower levels of contraceptive use) than females. Gender differences in patterns of risk taking were also found: For females, potentially risky behavior in the partner domain was negatively related to risky behavior in the sexual practice domain, whereas for males, the domains were positively related. The results suggested that males engaged in greater risk taking across many domains, while females compensate for risk in one domain by lower risk in another.  相似文献   
208.
The way in which therapeutic models and language have been dravm upon to provide support for concepts of human flexibility and 'human resource development' in the enterprise culture ofthe 1980s and 1990s is described. The use ofhumane managerial rhetoric to mask the practice of increasingly ruthless public and private-sector organisations, and the dilemmas posedfor counsellors operating within these kinds of institutional settings, are examined.  相似文献   
209.
210.
Frame multiplicity and policy fiascoes: Limits to explanation   总被引:1,自引:0,他引:1  
The dynamics of intractability, frame multiplicity and intense controversy not only characterize policy formation struggles, as described by Schön and Rein, but also affect the evaluation of policies and government action. Policy analysts play an important part in the politics of policy evaluation. This article demonstrates that they tend to produce very different explanations for controversial, failing policies. Such differing explanations imply different causal attributions, different allocations of blame, and different lessons for future policy-making. Such differences are not random occurrences; they are embedded in the analytical frames that evaluators use to reconstruct policy processes and to explain their outcomes. It is shown that at least three deep-rooted frames can be reconstructed: fiascoes as failures of public problem solving, fiascoes as institutional imbalances, and fiascoes as system artefacts. One of the great epistemological challenges is how to deal with multiple analytical frames. The final part of the article discusses various strategies.  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