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   38998篇
  免费   1450篇
  国内免费   11篇
  40459篇
  2019年   438篇
  2018年   623篇
  2017年   590篇
  2016年   670篇
  2015年   480篇
  2014年   602篇
  2013年   3753篇
  2012年   1006篇
  2011年   1039篇
  2010年   652篇
  2009年   642篇
  2008年   977篇
  2007年   898篇
  2006年   850篇
  2005年   696篇
  2004年   685篇
  2003年   696篇
  2002年   683篇
  2001年   1220篇
  2000年   1169篇
  1999年   894篇
  1998年   407篇
  1996年   518篇
  1995年   492篇
  1994年   483篇
  1993年   457篇
  1992年   930篇
  1991年   822篇
  1990年   826篇
  1989年   731篇
  1988年   731篇
  1987年   702篇
  1986年   716篇
  1985年   698篇
  1984年   616篇
  1983年   521篇
  1982年   408篇
  1981年   428篇
  1979年   585篇
  1978年   447篇
  1975年   551篇
  1974年   527篇
  1973年   604篇
  1972年   569篇
  1971年   509篇
  1970年   447篇
  1969年   428篇
  1968年   547篇
  1967年   460篇
  1966年   449篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
111.
The addition of job-related information regarding an applicant's leadership ability reduced bias against female applicants applying for a managerial position.  相似文献   
112.
Two experiments were conducted to investigate the perceptual primacy of dimensional and similarity relations in the stimulus classifications of younger and older subjects. In Experiment 1, 4- and 10-year-olds were given free classifications in which they could group stimuli according to overall similarity or identities in size, color, or orientation. Both age groups classified stimuli most frequently according to identities on separate dimensions. In Experiment 2, 4-year-olds and adults were given free classifications followed by rule-governed classifications which required them to group stimuli according to specific relations. In the free classifications, a majority of subjects in both age groups classified the stimuli most frequently according to identities on separate dimensions. In the rule-governed classifications, both age groups were more accurate when a single separate relation was required for solution than when overall similarity was required. These results support a differential-sensitivity view of perceptual development, which asserts that individuals at all ages primarily perceive and use separate relations.  相似文献   
113.
Children's perception of scale and contour in melodies was investigated in five studies. Experimental tasks included judging transposed renditions of melodies (Studies 1 and 3), discriminating between transposed renditions of a melody (Study 2), judging contour-preserving transformations of melodies (Study 4), and judging similarity to a familiar target melody of transformations preserving rhythm or rhythm and contour (Study 5). The first and second studies showed that young children detect key transposition changes even in familiar melodies and they perceive similarity over key transpositions even in unfamiliar melodies. Young children also are sensitive to melodic contour over transformations that preserve it (Study 5), yet they distinguish spontaneously between melodies with the same contour and different intervals (Study 4). The key distance effect reported in the literature did not occur in the tasks of this investigation (Studies 1 and 3), and it may be apparent only for melodies shorter or more impoverished than those used here.  相似文献   
114.
Behavioral momentum refers to the tendency for behavior to persist following a change in environmental conditions. The greater the rate of reinforcement, the greater the behavioral momentum. The intervention for noncompliance consisted of issuing a sequence of commands with which the subject was very likely to comply (i.e., high-probability commands) immediately prior to issuing a low-probability command. In each of five experiments, the high-probability command sequence resulted in a “momentum” of compliant responding that persisted when a low-probability request was issued. Results showed the antecedent high-probability command sequence increased compliance and decreased compliance latency and task duration. “Momentum-like” effects were shown to be distinct from experimenter attention and to depend on the contiguity between the high-probability command sequence and the low-probability command.  相似文献   
115.
This study investigated the effect of television food commercials on children's self-control within a resistance to temptation paradigm. Commercial type, food stimulus type, and the child's sex provided the three independent variables in a 4 × 4 × 2 factorial design. Behavioral and self-report indices of temptation and control were measured. Children were significantly more tempted to transgress for the low-nutrition food, regardless of the commercial shown. Sex differences in reported degree of temptation were found. However, the television commercials did not affect the children's latency to transgress.  相似文献   
116.
Using a multi-trial, free-recall paradigm (Rey Auditory-Verbal Learning Test; Lezak, 1983), the acquisition and retention by learning disabled (LD) young adults with a Halstead Impairment Index less than or equal to 0.3 (low LD) or greater than or equal to 0.4 (high LD) was compared with that of nondisabled and head-injured (HI) young adults. Significant group differences, particularly during the last three acquisition trials, confirmed the effectiveness of this method in revealing subtle learning and retention deficits. Analyses of Trial 1 recall showed group differences in the prerecency but not the recency portion of the serial position curve, thus implicating long-term but not short-term memory differences between the groups. Analyses of pair frequency (Sternberg & Tulving, 1977) data showed that the three clinical groups had difficulty organizing the to-be-learned material for effective retrieval. Following an interpolated task, retention was poorer for the clinical groups than for the nondisabled and varied inversely with the degree of neuropsychological impairment. Finally, during retention, the nondisabled and low LD groups retained and used the list organization established during acquisition whereas the high LD and HI groups did not.  相似文献   
117.
Subjects were presented with word pairs (e.g., bed-mattress) and timed as they decided whether one word named part of the item named by the other word. Yes responses were facilitated, and no responses were impeded, by relation similarity (i.e., the similarity of the relation between the two stimulus items to the part-whole relation). Item similarity, the similarity of the two stimulus items to each other, had no effect. The results support the view that similarity effects in semantic decision tasks are due to the comparison of elements of the relation between the two stimulus words against relation elements that serve as criteria for the target relation that the subject has been asked to identify.  相似文献   
118.
Entitled patients are described as those who derive gratification from indiscriminate and intense interpersonal relationships and who unconsciously do everything they can to resist the limits that psychoanalytic psychotherapy imposes on them. In this paper the dynamics of entitled patients are explained. Case histories illustrate the difficulties and significance of setting therapeutic limits on such patients.  相似文献   
119.
Tobacco, alcohol, and drug use are problems for American-Indian people. We reviewed these problems and the explanations for them and described a bicultural competence skills approach for preventing substance abuse with American-Indian adolescents. Data from a study of that approach suggest its efficacy with American-Indian youth. At posttest and a 6-month follow-up, American-Indian subjects who received preventive intervention based on bicultural competence skills concepts improved more than did American-Indian subjects in a no-intervention control condition on measures of substance-use knowledge, attitudes, and interactive skills, and on self-reported rates of tobacco, alcohol, and drug use. Our findings have implications for future substance-abuse prevention research with American-Indian people.  相似文献   
120.
This article presents a conceptual framework for individual treatment with chronic anorectic patients. In the first part of the article, the six-stage model for the anorectic process developed over the past years by M. Selvini-Palazzoli and her team is briefly explained. After presenting the model, we then discuss some related concepts, namely, "family game," "rule," and "strategy." Finally, the therapeutic technique in individual treatment is discussed. Two basic assumptions underlie this technique: first, the therapeutic relationship is instrumental, its main purpose being to improve the patient's personal relations outside therapy; second, the focus of the treatment is on the strategic incapacity of the patient who is caught up in and unable to cope with the "concealed family game."  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