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   44256篇
  免费   1740篇
  国内免费   21篇
  2019年   446篇
  2018年   715篇
  2017年   685篇
  2016年   726篇
  2015年   491篇
  2014年   666篇
  2013年   3190篇
  2012年   1163篇
  2011年   1244篇
  2010年   746篇
  2009年   794篇
  2008年   1147篇
  2007年   1090篇
  2006年   1035篇
  2005年   898篇
  2004年   877篇
  2003年   880篇
  2002年   845篇
  2001年   1348篇
  2000年   1352篇
  1999年   1032篇
  1998年   467篇
  1997年   470篇
  1996年   443篇
  1992年   922篇
  1991年   828篇
  1990年   868篇
  1989年   777篇
  1988年   767篇
  1987年   732篇
  1986年   799篇
  1985年   830篇
  1984年   675篇
  1983年   592篇
  1982年   447篇
  1981年   436篇
  1979年   690篇
  1978年   554篇
  1977年   463篇
  1976年   469篇
  1975年   596篇
  1974年   744篇
  1973年   764篇
  1972年   592篇
  1971年   585篇
  1970年   516篇
  1969年   566篇
  1968年   701篇
  1967年   622篇
  1966年   655篇
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
821.
86 stutterers' disfluency patterns were examined in relation to their laterality preferences. Results suggest that young stutterers are a heterogeneous group and that specific disfluency variables were not related to ear preferences on a dichotic consonant-vowel listening task.  相似文献   
822.
This study examined supervisor perceptions and subordinate reactions to formal performance-appraisal reviews. The performance-appraisal behaviors of supervisors and the reactions of their subordinates were studied in a sample of university employees. A factor analysis revealed that there were three dimensions of formal performance appraisals: two developmental dimensions (being supportive; emphasizing performance improvement) and one administrative dimension (discussing pay and advancement). Regression analyses suggested that supervisors supported highly rated individuals and stressed improvement efforts for poor performers. After controlling for the level of previous performance ratings, results indicated that support in the appraisal review was associated with higher levels of employee motivation, while discussing pay and advancement was associated with higher levels of employee satisfaction. Unfortunately, improvement efforts by the supervisors did not influence job performance one year later.  相似文献   
823.
The author reports on an improvement in ECT in which Dexamethasone is used to prevent cerebral edema. This improved technique has been used for 823 EC treatment since 1979. Since then, no post-paroxysmal passage syndromes have been observed in gerontopsychiatric patients even in cases where ECT is applied relatively frequently.  相似文献   
824.
The relationship between endogenous-psychotic and hysterical behavior is presented in this paper on the basis of typical patients' accounts. Various patterns of behavior are revealed: chronic hysterical psychotic syndromes, acute hysterical psychotic syndromes, hysterical exalted psychotic episodes, simulated hysterical psychotic syndromes, hysterical behavior in the attempt to cope with psychosis, and pseudohysterical behavior in endogenous psychoses. The specific aspects of the doctor-patient relationship in the case of these patients are described.  相似文献   
825.
The influence in 8 of our patients with ophthalmic migraine of photic driving with sine-like flashing lights on EEG background activity was checked and the visually evoked potentials following the application of diffused simple light stimuli were analyzed using the recovery cycle technique. The results indicate a slightly increased tonic activity of the structures of the mesencephalic formatio reticularis, such as may be produced by slight functional disturbances. Some vegetative secondary symptoms of migraine attacks and some of the changes in EEG observed in patients with ophthalmic migraine are explicable by such an abnormality.  相似文献   
826.
Hitherto it has not been usual to talk in the German language about the therapy-oriented concept of two forms of the progress of atypical depression (Type A and Type V). The characteristic symptom of Type A is angst, together with phobias, physical complaints, etc. In Type V there are vegetative symptoms, often towards evening (Hypersomnia, difficulty in getting to sleep, increased appetite, increased weight, increased libido), accompanied by hysterical extrovert personality traits, and of intermittent occurrence. These clinical pictures are amenable to psychopharmalogical therapy. In conformity with the assumption of "somatic accommodation" treatment with antidepressives is recommended in the case neurotic depression, too, at least in the initial stages of treatment.  相似文献   
827.
The dipeptidyl-peptidase activity of 650 liquores cerebrospinalis was obtained by means of the substrate Gly-Pro-NHNp (Gly-Pro-4-nitroanilid) at pHs of 5.5 and 7.4. In comparison with a reference collective, the suitability of the method as a supplementary liquor parameter in neurological psychiatric diagnosis was examined. The introduction of the measurement at pH 7.4 can be particularly recommended for the distinguishing of bacterial and nonbacterial meningitis.  相似文献   
828.
Kris (1956) described the concept of the personal myth as an autobiographical story built around a family romance fantasy seen specifically in obsessive characters and serving a defensive function. In this paper the concept of the personal myth was expanded to include similar defensive constellations originating from within the grandiose self, built around omnipotent and omniscient fantasies and occurring in character formations with pregenital, narcissistic pathology. The case of a known author and poet, Nikos Kazantzakis, was used to illustrate the thesis of the paper. The available biographical material and the work of the author offer evidence to support the claim that the author's personal myth was a protective shield against anxiety originating in early narcissistic traumata.  相似文献   
829.
Book Reviews     
The Psychological Record -  相似文献   
830.
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