全文获取类型
收费全文 | 6436篇 |
免费 | 387篇 |
国内免费 | 2篇 |
出版年
2021年 | 57篇 |
2020年 | 112篇 |
2019年 | 131篇 |
2018年 | 171篇 |
2017年 | 218篇 |
2016年 | 218篇 |
2015年 | 159篇 |
2014年 | 187篇 |
2013年 | 743篇 |
2012年 | 304篇 |
2011年 | 328篇 |
2010年 | 200篇 |
2009年 | 213篇 |
2008年 | 262篇 |
2007年 | 281篇 |
2006年 | 237篇 |
2005年 | 234篇 |
2004年 | 229篇 |
2003年 | 204篇 |
2002年 | 213篇 |
2001年 | 103篇 |
2000年 | 112篇 |
1999年 | 107篇 |
1998年 | 93篇 |
1997年 | 86篇 |
1996年 | 95篇 |
1995年 | 88篇 |
1994年 | 78篇 |
1993年 | 62篇 |
1992年 | 82篇 |
1991年 | 61篇 |
1990年 | 52篇 |
1989年 | 50篇 |
1988年 | 48篇 |
1987年 | 43篇 |
1986年 | 48篇 |
1985年 | 62篇 |
1984年 | 60篇 |
1983年 | 50篇 |
1982年 | 73篇 |
1981年 | 74篇 |
1980年 | 53篇 |
1979年 | 54篇 |
1978年 | 44篇 |
1977年 | 67篇 |
1976年 | 40篇 |
1975年 | 46篇 |
1974年 | 39篇 |
1973年 | 45篇 |
1972年 | 36篇 |
排序方式: 共有6825条查询结果,搜索用时 15 毫秒
121.
In 1949, the neurologist Juhn Wada reported the first use of a new procedure for determining the localization of speech and language in neurological patients: examination of the effects on speech and language after injecting a barbiturate, sodium amytal, into the internal carotid artery of each hemisphere in succession. By the 1960s, Wada'sIntracarotid Amobarbital Procedure,orIAP,had become the method of choice for identifying the speech-dominant side in one kind of neurological patient, persons with epilepsy who are candidates for surgical resection, and it remains so today. In 1941, however, an American neurosurgeon, W. James Gardner, reported his use of a different anesthetization procedure for speech localization in neurological patients. Instead of injecting sodium amytal through the blood supply, as in the IAP, Gardner injected procaine hydrochloride directly into cortical tissue. In this paper, we provide a brief biography of Gardner. We then discuss his method of cortical anesthetization, the theoretical and empirical background guiding his use of this method and his choice of patients, and, finally, the fate of Gardner's method within the scientific community. 相似文献
122.
Quick Triviality Proofs for Probabilities of Conditionals 总被引:1,自引:0,他引:1
Peter Milne 《Analysis》1997,57(1):75-80
123.
International Journal for Philosophy of Religion - 相似文献
124.
125.
One-session cognitive treatment of dental phobia: preparing dental phobics for treatment by restructuring negative cognitions 总被引:4,自引:0,他引:4
Ad De Jongh Peter Muris Guusje Ter Horst Florence Van Zuuren Nelleke Schoenmakers Peter Makkes 《Behaviour research and therapy》1995,33(8):947-954
The purpose of this study was to investigate the effectiveness of a single session of cognitive restructuring in a sample of phobic dental patients. Fifty-two patients were randomly assigned to one of three conditions: cognitive restructuring (modification of negative cognitions), provision of information (about oral health and dental treatment), and a waiting list control condition. Both interventions maximally lasted one hour. In comparison with the waiting list control condition and the information intervention condition, the cognitive intervention condition not only showed a large decrease in frequency and believability of negative cognitions, but also exhibited a clear decline in dental trait anxiety. Analysis at a follow-up of one year demonstrated a further, drastic reduction in dental anxiety in both intervention conditions, wherein the difference among these conditions was not maintained. It is concluded that it is possible to obtain substantial reductions of dental trait anxiety through a single session of cognitive restructuring. Nevertheless, repeated exposure to the dental situation seems necessary for a further reduction of anxiety. 相似文献
126.
Two self-paced reading-time experiments are reported that examine the time course of pronoun interpretation processes based on local discourse structure and on world knowledge. The characterization of local discourse structure is based on recent work on centering, which provides a specific formulation of how the ways in which sentences make reference to common entities determines the coherence of discourse segments and how discourse structure influences interpretation of ambiguous pronouns. The results of the first experiment show that readers generate a default interpretation of a pronoun based on features of local discourse structure, and that that default interpretation is later confirmed or overridden by knowledge-based processes. The results of the second experiment show that local discourse structure continues to influence pronoun interpretation even when the semantic information that ultimately compels interpretation occurs before the pronoun. These results support the view that processes acting on local discourse structure play a powerful role in guiding language comprehension. 相似文献
127.
Peter Forrest 《Synthese》1995,103(3):327-354
In this paper I present the Discrete Space-Time Thesis, in a way which enables me to defend it against various well-known objections, and which extends to the discrete versions of Special and General Relativity with only minor difficulties. The point of this presentation is not to convince readers that space-time really is discrete but rather to convince them that we do not yet know whether or not it is. Having argued that it is an open question whether or not space-time is discrete, I then turn to some possible empirical evidence, which we do not yet have. This evidence is based on some slight differences between commonly occurring differential equations and their discrete analogs.I would like to express my thanks to John McKie with whom I have had several inspiring conversations about discrete space. I would also like to thank the audience of a paper on this topic which I read in October 1991 at the College Park campus of the University of Maryland. Finally I would like to thank the referees ofSynthese for their comments. One of them, in particular, should be thanked especially for help in improving Appendix Two. 相似文献
128.
Two studies were conducted to determine the conditions under which the third person effect (Davison, 1983) operates. It was hypothesized that the effect would be accentuated as target groups of others became more remote from the self. A second objective was to determine whether the effect operates in the absence of overtly persuasive intent in the media. Television programmes concerned with moral themes were employed as stimuli. The results further support Davison's claim that overestimation of media effects is greater when people imagine the responses of others whom they do not know than those of familar individuals. The results also indicate that the third person effect does operate in the absence of perceived persuasive intent, but is accentuated when bias is perceived by viewers. 相似文献
129.
Peter Lewis 《Topoi》1995,14(1):23-33
The GRW theory is a recent attempt to solve the measurement problem in quantum mechanics, and the tails problem is a well-known and potentially fatal criticism of the GRW theory. The first half of the paper is an exposition of the measurement problem, the GRW theory, and the tails problem. In the remainder of the paper, two methods of dealing with the tails problem are considered: first, altering the GRW theory so as to avoid the tails problem; and second, denying that the tails problem is more than a novel aspect of a universal vagueness in the way scientific theories relate to everyday language. 相似文献
130.
Age Differences in Three Components of Employee Well-being 总被引:3,自引:0,他引:3