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   59520篇
  免费   2401篇
  国内免费   18篇
  61939篇
  2020年   552篇
  2019年   742篇
  2018年   990篇
  2017年   1015篇
  2016年   1082篇
  2015年   791篇
  2014年   926篇
  2013年   4349篇
  2012年   1746篇
  2011年   1903篇
  2010年   1178篇
  2009年   1163篇
  2008年   1683篇
  2007年   1700篇
  2006年   1552篇
  2005年   1370篇
  2004年   1269篇
  2003年   1189篇
  2002年   1303篇
  2001年   1965篇
  2000年   1949篇
  1999年   1472篇
  1998年   687篇
  1997年   616篇
  1996年   610篇
  1993年   550篇
  1992年   1241篇
  1991年   1138篇
  1990年   1126篇
  1989年   1026篇
  1988年   1017篇
  1987年   970篇
  1986年   1046篇
  1985年   1060篇
  1984年   889篇
  1983年   803篇
  1982年   571篇
  1981年   573篇
  1979年   943篇
  1978年   675篇
  1975年   768篇
  1974年   822篇
  1973年   910篇
  1972年   772篇
  1971年   726篇
  1970年   643篇
  1969年   670篇
  1968年   858篇
  1967年   779篇
  1966年   659篇
排序方式: 共有10000条查询结果,搜索用时 7 毫秒
991.
This study investigated the intellectual functioning and personality characteristics of 81 Australian ex-servicemen, 42 of whom had served in Vietnam. A Cognitive Impairment Model (SCIM) developed by Savage (1978, 1981, 1984) enabled intellectual functioning levels, intellectual deterioration and learning ability in the verbal and performance modalities to be asses. The Clinical Analysis Questionnaire (CAQ) of Krug (1980) based 00 Cattell's theory and personality measurement techniques provided an assessment of normal personality characteristics and clinical factors. The data suggested that the two groups, Australian ex-servicemen and Australian Vietnam veterans, were relatively homogeneous with regard to cognitive functioning and gave no indication of impairment in their intellectual levels or of their learning ability. Significant personality differences were, however, found between the two groups of ex-servicemen. The Vietnam veterans showed significantly more tension, depression, guilt, resentment, alienation and hypochondriasis than their colleagues who had remained in Australia. They were more withdrawn from others and from reality and had more abnormal thought than the ex-servicemen who had not been to Vietnam. The cognitive data do not support the view that Vietnam veterans suffered from any serious cognitive impairment. The personality data, however, suggest a significant “Psycbological Stress Syndrome” in these Vietnam veterans which required professional psychological treatment.  相似文献   
992.
993.
Four insulin-requiring diabetic Ss were followed in single-S designs to measure the impact of progressive muscle relaxation training on blood glucose and stress levels. Measures of blood glucose, stress, activity and caloric intake were taken four times a day, along with a daily measure of anxiety. Two of the 4 Ss showed a significant decrease in blood glucose during treatment periods as compared to baseline measures. Similarly, 2 of the 4 Ss showed a significant decrease in stress levels during treatment. A multiple regression analysis revealed some significant relationships between blood glucose, stress, activity level and caloric intake. The results support previous studies that show relaxation techniques to be a viable aid in establishing greater diabetic control.  相似文献   
994.
Three studies compared the efficacy of various treatments for public-speaking incompetence. These effects were evaluated for the target behavior as well as for generalization effects across situations (conversations), settings (different sizes and types of audiences) and time (6-month follow-up). The first study showed that Self-instructional Training, either alone or in combination with other procedures, produced little or no benefits. The second study demonstrated the superiority of a Skills Training program over flooding therapy, while the final study failed to detect any enhancement of treatment benefits for the addition of home-practice to the Skills Training. In the first two studies generalization occurred across the three dimensions (settings, situations and time), while in the final study it was shown that the program was effective for a clinical population as well as recruited volunteers.  相似文献   
995.
996.
Relaxation-induced anxiety: mechanisms and theoretical implications   总被引:1,自引:0,他引:1  
Literature evidence documenting the occurrence of relaxation-induced anxiety is reviewed, and several hypothesized mechanisms to explain the phenomenon are discussed. Possible avenues for circumventing the problem in therapy are offered. Finally, a theoretical model is presented wherein the phenomenon is viewed with a broader framework designed to explain the development and maintenance of the more generalized anxiety disorders. That framework emphasizes the emergence of fear of somatic anxiety cues and fear of loss of control from more fundamental interpersonal anxieties.  相似文献   
997.
The Coping Strategies Scales (COSTS) were developed to provide a means of measuring how depressed persons cope with depression and to identify the behavior which they find to be most or least helpful. Items were rated by eight psychologists, psychiatrists and social workers. Those items achieving 75% level of agreement on scale assignments were included. The COSTS was then administered to 100 depressed outpatients and inpatients currently in psychotherapy. A replication study of 64 patients was also completed. Nine of the 10 scales had acceptable internal reliability, ranging from 0.70 to 0.86. An initial factor analysis of the 10 scale scores showed there to be three primary factors. Internal reliability coefficients for these three factorially-derived scales ranged from 0.86 to 0.91.  相似文献   
998.
In an investigation of the effects of simulated stuttering on listener recall, a presentation was varied on two factors: degree of stuttering (mild or severe) and information value of stuttered words (low or high). A control presentation featuring non-stuttered speech also was prepared. Five groups of 16 subjects were randomly assigned to, and participated in, one of the five listening conditions. Then they completed a 20-item recall test. A one-way analysis of variance revealed sognificant differences among the five conditions. Two-way analysis of variance disclosed no main effects. However, a significant interaction showed that recall was lowest in the severe stuttering-high information condition. The results are discussed in terms of attention to critical information.  相似文献   
999.
Factors influencing readability of rapidly presented text segments   总被引:5,自引:0,他引:5  
Experiment 1 compared paragraph comprehension for texts shown either as normal pages on a computer terminal screen or as rapid serial visual presentations (RSVPs) of small text segments to a common location. Over several days of practice, reading comprehension was equivalent in the normal presentation mode and the RSVP format. When successive RSVP segments contained some information in common, to mimic the experience of successive parafoveal and foveal views of words in normal reading, comprehension was somewhat worse than when successive segments contained no overlapping information. Experiment 2 used a variety of segment size and segment duration combinations to investigate the optimal means of presenting text in the RSVP format. Across a variety of presentation rates and text difficulties, comprehension was maximal for segments averaging about 12 character spaces in length. In Experiment 3, texts were divided into short idea units or into random segments of equal average length. Comprehension was shown to be greater in the structured condition than in the random condition. An optimal means of presenting text in the RSVP format could be superior to normal presentation methods for reading and other text-processing tasks.  相似文献   
1000.
The major theories and research approaches as to the etiology and development of stuttering are reviewed from a historical perspective. Findings are drawn from different sources indicating that language deficits are an initial contributing factor and a continuing component of this disorder. Those subsets of children which constitute high-risk groups are identified. It is suggested that researchers begin investigating the underlying organic bases of stuttering and its relationship to stages of language development. Finally, clinicians are encouraged to employ a therapy program that is concerned with all areas of language, rather than emphasizing treating only the symptoms of stuttering behavior.  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