全文获取类型
收费全文 | 83654篇 |
免费 | 3333篇 |
国内免费 | 34篇 |
出版年
2020年 | 802篇 |
2019年 | 1062篇 |
2018年 | 1448篇 |
2017年 | 1525篇 |
2016年 | 1556篇 |
2015年 | 1137篇 |
2014年 | 1316篇 |
2013年 | 6340篇 |
2012年 | 2422篇 |
2011年 | 2670篇 |
2010年 | 1703篇 |
2009年 | 1673篇 |
2008年 | 2386篇 |
2007年 | 2355篇 |
2006年 | 2168篇 |
2005年 | 1882篇 |
2004年 | 1744篇 |
2003年 | 1704篇 |
2002年 | 1758篇 |
2001年 | 2756篇 |
2000年 | 2707篇 |
1999年 | 2031篇 |
1998年 | 986篇 |
1997年 | 855篇 |
1996年 | 843篇 |
1992年 | 1736篇 |
1991年 | 1614篇 |
1990年 | 1586篇 |
1989年 | 1444篇 |
1988年 | 1404篇 |
1987年 | 1390篇 |
1986年 | 1422篇 |
1985年 | 1492篇 |
1984年 | 1241篇 |
1983年 | 1072篇 |
1982年 | 801篇 |
1981年 | 787篇 |
1979年 | 1289篇 |
1978年 | 925篇 |
1977年 | 785篇 |
1975年 | 1073篇 |
1974年 | 1157篇 |
1973年 | 1272篇 |
1972年 | 1047篇 |
1971年 | 958篇 |
1970年 | 859篇 |
1969年 | 919篇 |
1968年 | 1140篇 |
1967年 | 1015篇 |
1966年 | 951篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
811.
812.
Competencies in social and life skills of a group of students expecting to leave school at the end of Grade 10 in Australia is compared with groups expecting to continue. Academic performance and skills were also assessed. The results of the study indicated that the potential early school-leavers were disadvantaged both socio-economically and academically. But, surprisingly, the findings indicated that they were not significantly different from the other two groups of students targeted in the study in terms of their social and life skills. The results imply that potential early leavers in school populations may be unnecessarily disadvantaged because school programmes, in concentrating on a narrow range of cognitive skills, do not build on personal competency skills already possessed by students of all levels of ability. Whilst this is the case, potential early school-leavers will be likely to continue to be disaffected and disadvantaged educationally. 相似文献
813.
Judith S. Bridges 《Sex roles》1989,20(3-4):205-211
In order to examine sex differences in occupational values, college women and men rated the importance of 18 job characteristics for their career choice. In addition, they indicated which three were the most important and which three were the least important. The findings showed that, in comparison to males, females attached greater importance to a large variety of values, and these results are discussed in relation to career choice.This research was supported by a grant from the University of Connecticut Research Foundation. 相似文献
814.
Summary This study investigated the relative importance of perceptual and motor factors in the imitation of simple temporal patterns. Previous research in which subjects tap out interval sequences using one finger has suggested that perceptual factors play an important role in response timing. Studies of bimanual tapping, in contrast, stress the importance of motor interactions between the two hands. In this experiment we compared the ability of subjects to tap out two-interval sequences using one finger, two fingers on one hand, and two fingers on opposite hands. The results showed almost identical performance under the three response conditions. It is suggested that the perceptual relations between intervals in a pattern were the main determinant of performance in this experiment. 相似文献
815.
Potential for hostility and dimensions of anger 总被引:1,自引:0,他引:1
Recent reviews have linked Potential for Hostility derived from the Structured Interview (SI) to coronary artery disease, independent of the global Type A pattern. The present study examined the construct validity of Potential for Hostility ratings by correlating Potential for Hostility with 21 scales from four widely used anger/hostility measures: 7 scales from the Anger Self-Report, 8 scales from the Buss-Durkee Hostility Inventory, the total score from the Novaco Anger Inventory, and 5 scales from the Multidimensional Anger Inventory. The pattern of correlations revealed that Potential for Hostility was significantly related to scales reflecting awareness and arousal of anger, particularly the verbal expression of anger. To identify underlying anger dimensions, the 21 scales were factor-analyzed. Examination of two and three rotated principal components confirmed previous solutions. The first component, representing anger-arousing and -eliciting situations and anger awareness, was labeled Experience of Anger. The second component, consisting of scales dealing with either physical assault or verbal expression of anger, was labeled Expression of Anger. When a third factor was retained, it contained scales of suspicion, mistrust-suspicion, and guilt: It was therefore labeled Suspicion-Guilt. Potential for Hostility was correlated only with the Expression of Anger factor in the two-factor solution; in the three-factor solution, Potential for Hostility was correlated equally with the Experience of Anger and Expression of Anger factors but was not correlated with the Suspicion-Guilt factor. The implications of these results for the assessment of hostility are discussed. 相似文献
816.
Recall by expert medical practitioners and novices as a record of processing attention 总被引:1,自引:0,他引:1
G R Norman L R Brooks S W Allen 《Journal of experimental psychology. Learning, memory, and cognition》1989,15(6):1166-1174
Using recall of clinical protocols as a measure of expertise in medicine has yielded disappointingly small effects. Experiments using recall of clinical laboratory data are presented to provide an explanation. In one experiment, subjects either deliberately memorized or first diagnosed and then were incidentally asked for memory. With incidental instructions, experts recalled over twice as much data as did students, but with memorization instructions, student performance approximated that of experts. Experts also showed a large advantage over students in incidental recall of data that were not relevant to the problem solution. These results suggest that expert processing in this "discrete, independent inputs" domain requires effortful analysis with minimal reliance on default values, rather than relatively effortless pattern perception reported in highly visual areas of expertise. For this area, intentional memory is a misleading measure of expertise. However, incidental memory is a valuable measure of processing during diagnosis. 相似文献
817.
J. Gayle Beck Heinrich Taegtmeyer M. Andrew Berisford Alixandre Bennett 《Journal of psychopathology and behavioral assessment》1989,11(3):209-220
Recent reports have indicated similarities between patients with persistent chest pain of nonorganic origin and patients with panic disorder. In order to explore this association further, we administered a structured interview and three self-report measures (State-Trait Inventory, Beck Depression Inventory, and SCL90-R) to three subject groups: (1) a sample with persistent chest pain (CP; n=14) who had been screened and found to have normal coronary arteries, (2) a sample of patients with panic disorder (PD; n=14), and (3) a sample of matched normals (n=14). CP patients were considered to be free of coronary artery disease (CAD) following normal cardiac catheterization and/or normal thallium stress tests and were not diagnosed initially with panic disorder. PD patients were diagnosed with a standardized psychiatric interview and were free of organic causes of panic. Using an exploratory data analytic approach, the results indicated that both CP and PD samples reported increased levels of state and trait anxiety (p <.0001), depression (p <.01), and somatization (p <.0001) compared with normals. CP patients differed from PD patients in their less frequent use of anxiolytic medication (p <.01) and lower levels of reported panic anxiety and phobic avoidance (p <.0001). These data suggest that persistent chest pain in the absence of CAD shares some features with panic disorder, yet differs from panic in key ways as well. The results are discussed in light of the role of anxiety in contributing to symptom labeling.This research was supported by Grant 86G-491 from the American Heart Association, Texas Affiliate, to J.G.B. H.T. is the recipient of USPHS Research Career Development Award K04-HL-0122246. 相似文献
818.
819.
C. EDWARD WATKINS LAWRENCE J. SCHNEIDER 《Journal of counseling and development : JCD》1989,67(6):345-349
This study examined the hypothesis that positive self-involving and self-disclosing counselor responses would be rated more favorably by subjects than negative self-involving and self-disclosing counselor responses (Andersen & Anderson, 1985). The differential effectiveness of the counselor responses during the initial interview was discussed, and some implications of the findings for counseling practice were considered. 相似文献
820.
Sleep-activity patterns were objectively recorded over a 24-hr period in 19 elderly nursing home residents. On average, both sleep and wake times were observed during every hour of the 24 recorded hours; however, the sleep pattern of the residents was fragmented so that they rarely experienced even a single hour of consolidated time spent sleeping. It is hypothesized that several independent factors, including compensation for lost sleep, increased total time in bed, weakening of social constraints, and deterioration of the circadian sleep-wake rhythm, are interacting to produce this increase in sleep fragmentation. 相似文献