全文获取类型
收费全文 | 33178篇 |
免费 | 1252篇 |
国内免费 | 28篇 |
专业分类
34458篇 |
出版年
2019年 | 443篇 |
2018年 | 593篇 |
2017年 | 647篇 |
2016年 | 605篇 |
2015年 | 453篇 |
2014年 | 508篇 |
2013年 | 2608篇 |
2012年 | 898篇 |
2011年 | 1011篇 |
2010年 | 672篇 |
2009年 | 660篇 |
2008年 | 931篇 |
2007年 | 871篇 |
2006年 | 808篇 |
2005年 | 692篇 |
2004年 | 648篇 |
2003年 | 687篇 |
2002年 | 638篇 |
2001年 | 1210篇 |
2000年 | 1188篇 |
1999年 | 866篇 |
1998年 | 404篇 |
1997年 | 320篇 |
1996年 | 319篇 |
1994年 | 330篇 |
1992年 | 742篇 |
1991年 | 712篇 |
1990年 | 673篇 |
1989年 | 626篇 |
1988年 | 603篇 |
1987年 | 593篇 |
1986年 | 556篇 |
1985年 | 619篇 |
1984年 | 496篇 |
1983年 | 385篇 |
1981年 | 315篇 |
1979年 | 481篇 |
1978年 | 361篇 |
1977年 | 344篇 |
1976年 | 322篇 |
1975年 | 425篇 |
1974年 | 433篇 |
1973年 | 489篇 |
1972年 | 388篇 |
1971年 | 328篇 |
1970年 | 318篇 |
1969年 | 330篇 |
1968年 | 382篇 |
1967年 | 348篇 |
1966年 | 392篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
891.
Charles E. Collyer Seth S. Boatright-horowitz Sari Hooper 《Behavior research methods》1997,29(3):346-352
The musical instrument digital interface (MIDI) offers a way for perception and behavior researchers to implement high-quality experiments using inexpensive, commercially available hardware and software. We describe the MIDI and illustrate its applicability to research using a replication of the oscillator signature finding reported recently by Collyer, Broadbent, and Church (1992, 1994). 相似文献
892.
The integration of binocular stereopsis and kinetic depth was measured for two distinct aspects of 3-Dstructure: (1)shape index, which is a measure of scale-independent structure, and (2)curvedness, which is a measure of scale-dependent structure. We found that motion contributes significantly more to judged shape index than it does to judged curvedness, and stereo contributes significantly more to judged curvedness than it does to judged shape index. This suggests that the differences in the relative contribution of motion and stereo reported here occurred because these two sources do not equally specify the scale-dependent and scale-independent aspects of surface structure. Furthermore, these results seem to be inconsistent with integration models in which the different visual cues all initially contribute to the same single representation of 3-Dstructure. 相似文献
893.
James S. Howard M.D. 《Integrative psychological & behavioral science》1997,32(3):257-264
Several cases encountered in psychiatric practice are described in which herpetic involvement of the trigeminal nerve appeared
to be crucial to the pathophysiology of the patients’s illness. A brief history of herpes is discussed in terms of the anatomy
and physiology of the trigeminal nerve. Particular attention is given to the effects of intraneuronal herpes on gasserian
ganglion and spinal nuclei discharge threshoolds, as well as viral pathways directly impacting the substantia nigra. Evidence
characterizing Parkinson’s disease as one of several important manifestations of CNS herpes is covered.
This article will be presented, by invitation, at the Neuroscience Seminar, Department of Medicine, University of Otago, Dunedin,
New Zealand, on 19 August 1997. 相似文献
894.
Deutsch's theory of cooperative and competitive conflict may be usefully extended to Dutch people. Results of LISREL analyses on data collected from interviews of Dutch employees in 2 companies indicate that competitive goals interfered with the open, constructive discussion of opposing views. However, cooperative goals were not found to contribute to constructive controversy. Dutch who discussed their opposing views openly made progress on the task, worked efficiently, and strengthened their work relationship and their confidence in future collaboration. These results do not argue that Dutch and North Americans handle conflict similarly, for how these groups operationalize the theory may differ significantly. Goal interdependence may have the potential to be a framework for promoting conflict management between Dutch and North Americans. 相似文献
895.
Mark A. Barnett Guy D. Vitaglione Kimberly K. G. Harper Steven W. Quackenbush Lee Ann Steadman Birgit S. Valdez 《Journal of applied social psychology》1997,27(15):1316-1334
A total of 229 late adolescents (a large majority 15 to 19 years of age) completed a questionnaire that assesses a broad range of videogame-relevant experiences, preferences, and attitudes. Videogame playing was found to be a more popular, and a more highly regarded, activity among males than females. Gender differences were also found in participants' ratings of their motivations for playing videogames, their evaluations of particular characteristics of videogames, and their selection of their “most favorite” videogame. The differences between frequent and infrequent videogame players appeared to be limited to differences in the extent to which videogame playing is pursued and evaluated as a positive leisure activity, rather than reflecting broad differences in interest or personality. Some relations were found between participants' self-reported personality characteristics (i.e., self-esteem, empathy, conscientiousness, and introversion) and their attitudes toward videogames. 相似文献
896.
897.
Adult Attachment Styles, the Desire to Have Children, and Working Models of Parenthood 总被引:1,自引:0,他引:1
W. Rholes Rholes Jeffry A. Simpson Barbara S. Blakely Leigh Lanigan Elizabeth A. Allen 《Journal of personality》1997,65(2):357-385
ABSTRACT College students who had yet to marry and begin a family were asked about their desire to have children and their beliefs and expectations about themselves as parents (Study 1) and the characteristics of their prospective children (Study 2). Persons with more avoidant and anxious-ambivalent models of close adult relationships harbored more negative models of parent-hood and parent-child relationships. These findings indicate that working models of parenting and parent-child relationships form well before marriage and the birth of children and that these models are systematically associated with attachment styles in adult relationships. The findings also suggest ways in which insecure attachments between child and parent may be influenced by the caregiver's models of parenting and parent-child relationships. 相似文献
898.
899.
P.M.S. Hacker 《The Philosophical quarterly》1997,47(188):285-304
Davidson's explanation of first-person authority in utterance of sentences of the form 'I V that p ' derives first-person authority from the requirements of interpretation of speech. His account is committed to the view that utterance sentences are truth-bearers, that believing that p is a matter of holding true an utterance sentence, and that a speaker's knowledge of what he means gives him knowledge of what belief he expresses by his utterance. These claims are here faulted. His explanation of first-person authority by reference to the requirements of interpretability is committed to the view that all understanding involves interpretation. This is argued to be a misconception of understanding and of speaker's meaning. Davidson's account involves acceptance of the cognitive assumption that normally when a person V s that p , he knows that he does. This assumption is challenged. Throughout, Davidson's conception is compared and contrasted with Wittgenstein's. 相似文献
900.