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   72457篇
  免费   3052篇
  国内免费   30篇
  75539篇
  2020年   874篇
  2019年   965篇
  2018年   1443篇
  2017年   1430篇
  2016年   1488篇
  2015年   1047篇
  2014年   1309篇
  2013年   6052篇
  2012年   2380篇
  2011年   2431篇
  2010年   1426篇
  2009年   1532篇
  2008年   2130篇
  2007年   2078篇
  2006年   1935篇
  2005年   1610篇
  2004年   1644篇
  2003年   1572篇
  2002年   1489篇
  2001年   2449篇
  2000年   2328篇
  1999年   1751篇
  1998年   802篇
  1997年   707篇
  1996年   752篇
  1995年   683篇
  1994年   670篇
  1993年   681篇
  1992年   1451篇
  1991年   1307篇
  1990年   1339篇
  1989年   1265篇
  1988年   1208篇
  1987年   1150篇
  1986年   1145篇
  1985年   1259篇
  1984年   996篇
  1983年   843篇
  1982年   657篇
  1979年   1015篇
  1978年   766篇
  1975年   853篇
  1974年   959篇
  1973年   970篇
  1972年   822篇
  1971年   757篇
  1969年   660篇
  1968年   842篇
  1967年   738篇
  1966年   730篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
941.
Job search attitudes and behaviors among college students were studied. Major job-seeking factors were identified and discussed in relation to job search experience.  相似文献   
942.
In a survey of recruiters whose companies hire liberal arts graduates, employers suggested the educational qualities they found most attractive and offered recommendations for the job search.  相似文献   
943.
The development of conservation skills in tasks dealing with temporal and nontemporal concepts was investigated. Contrary to findings of previous researchers, time conservation tasks presented few difficulties for children from a non-technological culture. Consistent with the results of previous research, however, time conservation tasks did appear to be more difficult than related tasks employing similar materials.  相似文献   
944.
Two studies found that left-handed children had significantly poorer academic records than did right-handed children, though the effect was small. Study 1 provided evidence that, for some academic disciplines, the important difference appeared to be between those children whose family history of handedness was concordant with their own handedness and those children whose family history of handedness was discordant with their own handedness. The inclusion of gender in asymmetry research was bolstered by Study 2. When predicting idiosyncrasies in left-handers' cognitive performance, it should be borne in mind that left-handers form a minority group as well as a neurologically distinct one.  相似文献   
945.
Selection, evocation, and manipulation   总被引:10,自引:0,他引:10  
This article proposes three key mechanisms by which personality and social processes are intrinsically linked. Selection deals with the manner in which individuals choose to enter or avoid existing environments. Evocation is defined by the ways in which individuals unintentionally elicit predictable reactions from others in their social environments. Manipulation deals with the tactics that individuals use intentionally to alter, shape, exploit, or change the social environments they inhabit. Empirical findings from 57 dating couples (undergraduates), and previous research within social, personality, and developmental psychology, are used to illustrate the heuristic value of this framework.  相似文献   
946.
Romantic love conceptualized as an attachment process   总被引:45,自引:0,他引:45  
This article explores the possibility that romantic love is an attachment process--a biosocial process by which affectional bonds are formed between adult lovers, just as affectional bonds are formed earlier in life between human infants and their parents. Key components of attachment theory, developed by Bowlby, Ainsworth, and others to explain the development of affectional bonds in infancy, were translated into terms appropriate to adult romantic love. The translation centered on the three major styles of attachment in infancy--secure, avoidant, and anxious/ambivalent--and on the notion that continuity of relationship style is due in part to mental models (Bowlby's "inner working models") of self and social life. These models, and hence a person's attachment style, are seen as determined in part by childhood relationships with parents. Two questionnaire studies indicated that relative prevalence of the three attachment styles is roughly the same in adulthood as in infancy, the three kinds of adults differ predictably in the way they experience romantic love, and attachment style is related in theoretically meaningful ways to mental models of self and social relationships and to relationship experiences with parents. Implications for theories of romantic love are discussed, as are measurement problems and other issues related to future tests of the attachment perspective.  相似文献   
947.
ABSTRACT A simple parable is introduced that serves as an analogy to the private/public self-focus distinction The analogy elucidates that the reliability of the effects observed by the private/public research direction is not the focus of the Wicklund and Gollwitzer critique Rather, the critique questions the validity of the explanations offered More importantly, the analogy implies the conclusion that construing social dependency as an issue of self-focus does injustice to both the social dependency and self-focus concepts  相似文献   
948.
Modulation of the responses to perturbation applied during different phases of three rhythmic movements in humans-running, cycling, and hopping-was studied. The perturbation was an electrical stimulus. The results showed gating and modulation of the responses in both ipsi- and contralateral limb muscles. The responses during running and cycling were only excitatory in nature, while during hopping an inhibitory response was observed. These responses were not correlated with the normal activity during the movement. The latency of the response in general was not altered for different stimulation phases. The alterations in the step cycle demonstrated overt behavioral changes due to the responses. There were differences between the responses observed during these movements and walking. In running, the major adaptation to perturbations appears to be in the contralateral side as seen in the changes in the step cycle. During cycling (except for one phase) and hopping, the same set of muscles was activated in response to perturbation. This represents a simplifying strategy in response organization. The dependency of the response on the task characteristics, postural stability requirement, and external constraints imposed on the subject is discussed. These studies provide insights into task-dependent strategies adopted by the nervous system to meet unexpected perturbation during rhythmic movements in humans.  相似文献   
949.
Left-handedness in twin families: support of an environmental hypothesis   总被引:2,自引:0,他引:2  
Information on handedness, assessed as writing-hand, was collected from 197 MZ twin pairs and 203 DZ twin pairs and from their parents, spouses, and children. Associations for pairs of relatives were studied by 2 X 2 tables, computing chi squared-values and tetrachoric correlations. Correlations of about .3 were obtained for mother-offspring and sibling pairs, while for cousins the correlation was .25 (in a small sample). No other significant associations were found, not even for twins. These results suggest only a small, if any, genetic effect, and only a small environmental between family effect, most of which seems to be a maternal effect. The lack of cotwin correlations and correlations for one of the twins with her/his ordinary brothers/sisters suggest the existence of an effect specific to twins, since the correlation for pairs of ordinary siblings is significant. Conclusions drawn from twin studies alone may be biased. The frequency of left-hand writers has increased from 1% to 10% in the different age groups born during the last century in Norway. This age effect is present mainly in hand writing and not so much in handedness generally, suggesting a decrease in cultural repression against left-hand writing.  相似文献   
950.
The object of the present study was to verify the emergence of a 'visual dominance' effect in memory tests involving different sensory modes (sight and smell), brought about the preattentive mechanisms which select the visual sensory mode regardless of the recall task.  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