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   27483篇
  免费   228篇
  国内免费   3篇
  27714篇
  2020年   66篇
  2019年   80篇
  2018年   3632篇
  2017年   2948篇
  2016年   2368篇
  2015年   272篇
  2014年   162篇
  2013年   652篇
  2012年   772篇
  2011年   2606篇
  2010年   2640篇
  2009年   1611篇
  2008年   1893篇
  2007年   2393篇
  2006年   190篇
  2005年   369篇
  2004年   314篇
  2003年   241篇
  2002年   228篇
  2001年   259篇
  2000年   269篇
  1999年   179篇
  1998年   97篇
  1997年   84篇
  1996年   80篇
  1993年   68篇
  1992年   135篇
  1991年   129篇
  1990年   134篇
  1989年   109篇
  1988年   102篇
  1987年   108篇
  1986年   117篇
  1985年   116篇
  1984年   112篇
  1983年   94篇
  1979年   108篇
  1978年   90篇
  1977年   71篇
  1976年   66篇
  1975年   75篇
  1974年   93篇
  1973年   103篇
  1972年   73篇
  1971年   70篇
  1970年   81篇
  1969年   79篇
  1968年   107篇
  1967年   82篇
  1966年   95篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
91.
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   
92.
This paper has attempted to discover if the two analyses of Mr. Z by Kohut do in fact substantiate the clinical efficacy of his theoretical model. A brief overview was presented, as were critical assessments. The major point was developed, that a creative working-through of a complementary countertransference was largely responsible for the success of a second analysis after a first phase was seriously undercut by interfering material which rigidified the therapist's interpretation. It was concluded by noting how Kohut's need to overcome the countertransference played a vital role in catalyzing the evolution of his new theory.  相似文献   
93.
9 stutterers and 9 nonstutterers were administered a dichotic digits test under conditions of free recall and directed attention. Analysis indicated right-ear preference for both groups and no differences between the free recall and directed listening conditions. Results are discussed in relation to previous studies in which dichotic digit-stimuli were presented to stutterers.  相似文献   
94.
Approximately 15% of all papers appearing inPsychometrika during the period 1960–1984 have been statistical or data analytic in nature. While these papers cover a very wide range of issues and are technically quite similar to those appearing in other major statistical journals, collectively they possess features which make them identifiablyPsychometrika.  相似文献   
95.
96.
97.
The experiments examined the contributions of forebrain noradrenaline and environmental enrichment to recovery of place navigation ability in rats after hemidecortication in infancy or adulthood. Noradrenaline depletion did not affect recovery from neonatal hemidecortication, although the early hemidecortications did allow sparing of function relative to adult operates. Noradrenaline depletion also failed to attenuate the positive effects of enriched housing on otherwise normal rats. Noradrenaline depletion did retard recovery of adult hemidecorticate rats housed in standard laboratory cages, but it did not retard recovery of adult hemidecorticate rats housed in enriched environments. The results suggest that noradrenaline is importantly involved in enhancing recovery from brain damage when other sources of compensation (e.g., neonatal injury, enriched environment) are absent.  相似文献   
98.
Attitudes toward posthumous organ donation and commitment to donate   总被引:4,自引:0,他引:4  
The medical need for human organs suitable for use as transplants far exceed the supply, and is growing. More favorable attitudes about organ donation would increase people's willingness to sign posthumous donation pledges. But effective educational programs require information about the public's present views. Verbal attitude scales were constructed and administered to 110 adults, resulting in reliable measurement of two independent dimensions, prodonation and antidonation (r = .003). Cluster analysis of the instrument revealed that the positive dimension involves belief in the humanitarian benefits of organ donation and feelings of pride experienced by the donor. The negative dimension reflects fears of body mutilation and of receiving inadequate medical treatment when one's life is at risk. Pro and anti scores in combination predicted willingness to sign a donor card. A 2 X 2 analysis of variance (High-Low Positive X High-Low Negative) revealed significant main effects for both positive and negative attitude. Also, a significant interaction effect was obtained. Those subjects who had both strong positive attitudes and weak negative attitudes were especially willing to sign donor cards. Suggestions for designing educational campaigns to promote organ donation are offered.  相似文献   
99.
This study tested the applicability of a cognitive-motivational model of health behavior to children's food choices. A sample of 107 elementary schoolchildren provided ratings of 15 foods in terms of possible choice criteria (e.g., how tasty or healthful specific foods were) and social or environmental influences (e.g., whether foods were eaten by friends or were easy to get). Several measures of food consumption were taken, and cognitive-developmental level was assessed. Within-person correlations were calculated between food choices and each choice criterion and social/environmental factor. These "correlational indices" of influences on food choice subsequently were used to identify five distinct subgroups in the sample. Children at the operational level of cognitive development tended to be in one of three groups characterized by health orientation in food choice, taste orientation, or multiple-motive orientation. Dietary quality was poorest in the taste-oriented group. Children at the preoperational level tended to have one of two undifferentiated patterns of values across the correlational indices. Results provide evidence of: the viability of cognitive-motivational models to explain children's food choices, the promise of within-person research methodology, and the potential for enhanced health behavior-change programs by use of population segmentation and tailored interventions.  相似文献   
100.
This study examined the implications for social comparison theory of the proposition that women have lower self-confidence than men when there is a socially defined standard of performance. To this end, it was hypothesized that women would judge themselves to be similar to a lower ranked person, whereas men would judge themselves to be similar to a higher ranked person. Furthermore, it was hypothesized that women would choose to see a score lower than their own, whereas men would choose to see a score higher than their own. The results on the measure of similarity indicated that men did judge themselves to be similar to a higher ranked person, whereas women showed no consistent preferences in their judgments of similarity. The results on the choice of a comparison other were not as clear-cut.  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