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   79671篇
  免费   3061篇
  国内免费   27篇
  2019年   944篇
  2018年   1228篇
  2017年   1294篇
  2016年   1396篇
  2015年   1033篇
  2014年   1194篇
  2013年   5866篇
  2012年   2221篇
  2011年   2408篇
  2010年   1496篇
  2009年   1497篇
  2008年   2167篇
  2007年   2133篇
  2006年   1941篇
  2005年   1760篇
  2004年   1629篇
  2003年   1550篇
  2002年   1685篇
  2001年   2445篇
  2000年   2403篇
  1999年   1794篇
  1998年   883篇
  1997年   805篇
  1996年   785篇
  1992年   1582篇
  1991年   1495篇
  1990年   1462篇
  1989年   1372篇
  1988年   1312篇
  1987年   1280篇
  1986年   1367篇
  1985年   1413篇
  1984年   1194篇
  1983年   1063篇
  1982年   778篇
  1981年   817篇
  1979年   1258篇
  1978年   922篇
  1977年   763篇
  1976年   746篇
  1975年   1083篇
  1974年   1174篇
  1973年   1286篇
  1972年   1100篇
  1971年   1025篇
  1970年   946篇
  1969年   978篇
  1968年   1238篇
  1967年   1143篇
  1966年   1014篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
31.
Our aim was to explore the role of parents in the transmission of stereotypical body size attitudes and awareness of weight loss strategies to preschool children. Participants were 279 3‐year‐old children and their parents, who provided data at baseline and 1 year later. Parents completed self‐report body size attitude and dieting measures. Child weight bias and awareness of weight loss strategies were assessed through interview. Over time, negative associations with large bodies and awareness of weight loss strategies increased. Fathers’ attitudes prospectively predicted boys’ weight bias and awareness of weight loss strategies. Among girls, parental attitudes were less predictive. Findings confirm the importance of fathers in the development of boys’ body attitudes and inform prevention programmes.  相似文献   
32.
33.
34.
This analog study examined how the presence and absence of explicit social comparison standards and performance feedback influenced women's and men's perceptions of personal entitlement for pay. In the absence of both comparison information and performance feedback, women felt they deserved less pay than did men. However, these gender differences were eliminated when women and men were exposed to either the same comparison information or the same performance feedback. Path analyses further revealed that the effects of comparison information and performance feedback on judgments of pay fairness and satisfaction were mediated almost exclusively by feelings of entitlement.  相似文献   
35.
Previous research demonstrates that older adults are poor at dual tasking, but there is less agreement on whether their decrement is worse than that predicted from single-task performance. This study investigated whether task domain moderates dual-task costs in old age. In two experiments, young and older adults retrieved either previously learned associates (episodic retrieval) or overlearned category members (semantic retrieval) under single or working-memory load conditions, using cued recall (Experiment 1) and recognition (Experiment 2) procedures. In both experiments the proportional costs of dual tasking were age invariant for semantic retrieval but were particularly marked for episodic retrieval, although the size of the age effect was reduced in recognition compared to cued recall. The data suggest that age effects in dual tasking may be domain specific.  相似文献   
36.
Some languages create the impression of being stress timed. Claims have been made that this timing of stressed syllables enables the listener to predict the future locations of informative parts later in a sentence. The fact that phoneme monitoring is delayed when targets in a spoken sentence are displaced has been taken as supporting this claim (Meltzer, Martin, Bergfeld Mills, Imhoff and Zohar, 1976). In the present study temporal displacement was induced without introducing phonetic discontinuities. In Dutch sentences a word just in advance of a target-bearing word was replaced by another one differing in length. Results show that the temporal displacement per se did not have any effect on phoneme-monitoring reaction times. Implications for a theory of fpeech processing are discussed.  相似文献   
37.
Evaluated the effect of varied physician affect on subject recall, anxiety, and perceptions in a simulated tense and ambiguous medical situation. Forty women at risk for breast cancer viewed videotapes of an oncologist presenting--with either worried or nonworried affect--mammogram results. Although the mammogram results and the oncologist were the same in both presentation, analyses indicated that, compared to the women receiving the results from a nonworried physician, the women receiving the results from a worried physician recalled significantly less information, perceived the clinical situation as significantly more severe, reported significantly higher levels of state anxiety, and had significantly higher pulse rates. These results suggest that physician affect plays a critical role in patient reaction to medical information. Implications for compliance research, patient satisfaction, and physician training are discussed.  相似文献   
38.
Experiment 1 replicated Yaniv and Meyer's (1987) finding that lexical decision and episodic recognition performance was better for words previously yielding high-accessibility levels (a combination of feeling-of-knowing and tip-of-the-tongue ratings) in comparison with those yielding low-accessibility levels in a rare word definition task. Experiment 2 yielded the same pattern even though lexical decisions preceded accessibility estimates by a full week. Experiment 3 dismissed the possibility that the Experiment 2 results may have been due to a long-term influence from the lexical decision task to the rare word judgment task. These results support a model in which Ss (a) retrieve topic familiarity information in making accessibility estimates in the rare word definition task and (b) use this information to modulate lexical decision performance.  相似文献   
39.
40.
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