全文获取类型
收费全文 | 18943篇 |
免费 | 636篇 |
国内免费 | 3篇 |
出版年
2020年 | 178篇 |
2019年 | 210篇 |
2018年 | 404篇 |
2017年 | 407篇 |
2016年 | 491篇 |
2015年 | 339篇 |
2014年 | 352篇 |
2013年 | 1693篇 |
2012年 | 799篇 |
2011年 | 861篇 |
2010年 | 402篇 |
2009年 | 419篇 |
2008年 | 624篇 |
2007年 | 580篇 |
2006年 | 541篇 |
2005年 | 1766篇 |
2004年 | 1139篇 |
2003年 | 908篇 |
2002年 | 637篇 |
2001年 | 279篇 |
2000年 | 211篇 |
1999年 | 252篇 |
1998年 | 251篇 |
1997年 | 235篇 |
1996年 | 195篇 |
1995年 | 195篇 |
1994年 | 193篇 |
1993年 | 211篇 |
1992年 | 215篇 |
1991年 | 202篇 |
1990年 | 209篇 |
1989年 | 180篇 |
1988年 | 155篇 |
1987年 | 188篇 |
1986年 | 162篇 |
1985年 | 189篇 |
1984年 | 222篇 |
1983年 | 216篇 |
1982年 | 210篇 |
1981年 | 181篇 |
1980年 | 151篇 |
1979年 | 174篇 |
1978年 | 194篇 |
1977年 | 172篇 |
1976年 | 173篇 |
1975年 | 176篇 |
1974年 | 193篇 |
1973年 | 141篇 |
1972年 | 103篇 |
1971年 | 95篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
141.
142.
Most of the empirical literature on juvenile homicide has emerged from the clinical experience of mental health professionals who have diagnosed and/or treated youngsters who killed. After a critical review of this literature, data on 787 juvenile homicide offenders are presented and discussed. These data indicate that intrafamilial killings represent but a small fraction of all homicides perpetrated by juveniles and that there are clear differences between intrafamilial and extrafamilial juvenile homicides. 相似文献
143.
Fallacies are things people commit, and when they commit them they do something wrong. What kind of activities are people engaged in when they commit fallacies, and in what way are they doing something wrong? Many different things are called fallacies. The diversity of the use of the concept of a fallacy suggests that we are dealing with a family of cases not related by a common essence. However, we suggest a simple account of the nature of fallacies which encompasses them all, viz., the term “fallacy” is our most general term for criticizing any general procedure used for the fixation of beliefs that has an unacceptably high tendency to generate false or unfounded beliefs, relative to that method of fixing beliefs. Very different sorts of things called fallacies are examined in the light of this account, e.g., denying the antecedent, circular arguments, so-called informal fallacies, and propositions said to be fallacies. We do not provide a theory of fallacies. Still, on our account pretty much all of those things that have been called fallacies are fallacies, and they have been called fallacies for pretty much the same reasons. 相似文献
144.
Glenn M. McEvoy Richard W. Beatty H. John Bernardin 《Journal of business and psychology》1987,2(2):97-111
This study compared the predictive validity of two types of overall assessment center ratings (clinical and mechanical) and two types of performance ratings (supervisor and subordinate). Data were gathered on approximately 50 law enforcement agency managers over a four-year time span. Results indicated that clinical predictions were not significantly better than mechanical ones and that prior performance ratings were better predictors of future performance ratings than were assessment centers. Further, dimension ratings within the assessment center were found to be unrelated to ratings of the same dimensions on the job four years later, supporting the notion of subtle criterion contamination (Klimoski & Strickland, 1977) and raising questions about the central assumptions underlying the assessment center approach. 相似文献
145.
146.
Several theories have been presented that predict differences between women and men in attitudes toward the environment due to differences in sex roles. Research on which these theories can be tested has tended to examine general environmental concern, and the results have generally been weak and inconclusive. Using an approach suggested in the literature, this study examines sex differences in concern and knowledge, using multi-item scales for each, about one environmental issue — acid rain. The results contradict the theories being tested, however: if there is a sex difference, men are found to be more concerned and knowledgeable about the environmental problem. 相似文献
147.
148.
A report on the clinical testing of the lithium-retard medicament Contemnol (Spofa). It details the way lithium-retard treatment is objectively and subjectively superior to the earlier and still current general lithium treatment. 相似文献
149.
H J Otto E Willenberg D Müller R H?fs J Freitag A Fiedler R Steinke 《Psychiatrie, Neurologie, und medizinische Psychologie》1987,39(12):748-753
The results of an evaluation of the perfusion scintigraphy findings of 350 hospitalised neurological patients and 55 more strictly selected neurosurgical patients with cerebrovascular complaints, revealed an accuraty of 83%, a sensitivity of 89%, and a specificity of 83%. The selection of the patients had no influence on the results as a whole. Compared with contrast-medium angiography, incorrect diagnosis must be expected in 17% of the cases. This includes erroneous negative findings in 10% of the cases. Grounds for misinterpretations are suggested, and the biological and methodological limitations of the method are set forth. 相似文献
150.
Religious and spiritual issues in mental health are explored in the context of four conceptual models: the medical, the nursing, the humanistic, and the pastoral. This is done by looking at each model in terms of content, diagnostic focus, language and treatment goals, and primary qualities in the health provider.The models are illustrated by case studies gathered from a multidisciplinary setting. The discovery that each model can incorporate the religious and spiritual dimension in mental health care, but that each model does this in distinctive ways, is a key point. 相似文献