全文获取类型
收费全文 | 22324篇 |
免费 | 865篇 |
国内免费 | 11篇 |
出版年
2019年 | 264篇 |
2018年 | 380篇 |
2017年 | 399篇 |
2016年 | 425篇 |
2015年 | 324篇 |
2014年 | 353篇 |
2013年 | 1806篇 |
2012年 | 634篇 |
2011年 | 660篇 |
2010年 | 400篇 |
2009年 | 373篇 |
2008年 | 508篇 |
2007年 | 566篇 |
2006年 | 476篇 |
2005年 | 453篇 |
2004年 | 430篇 |
2003年 | 418篇 |
2002年 | 452篇 |
2001年 | 755篇 |
2000年 | 727篇 |
1999年 | 552篇 |
1998年 | 220篇 |
1997年 | 208篇 |
1996年 | 227篇 |
1995年 | 205篇 |
1992年 | 462篇 |
1991年 | 450篇 |
1990年 | 430篇 |
1989年 | 410篇 |
1988年 | 430篇 |
1987年 | 381篇 |
1986年 | 393篇 |
1985年 | 395篇 |
1984年 | 315篇 |
1983年 | 282篇 |
1982年 | 208篇 |
1981年 | 209篇 |
1979年 | 359篇 |
1978年 | 261篇 |
1977年 | 220篇 |
1975年 | 286篇 |
1974年 | 365篇 |
1973年 | 377篇 |
1972年 | 292篇 |
1971年 | 285篇 |
1970年 | 283篇 |
1969年 | 254篇 |
1968年 | 350篇 |
1967年 | 310篇 |
1966年 | 286篇 |
排序方式: 共有10000条查询结果,搜索用时 62 毫秒
921.
Dr. John B. Crozier 《Motivation and emotion》1980,4(2):143-148
In reference to recent work in aesthetics from a scientific perspective, Berlyne coined the phrase the new experimental aesthetics. Berlyne's contributions to this research area are discussed in terms of the philosophical, theoretical, and methodological issues central to the current literature. The paper concludes with a consideration of the future prospects for experimental aesthetics.This paper was presented at a symposium in honor of Daniel E. Berlyne at the annual meeting of the American Psychological Association, San Francisco, August 27, 1977. The presentation of this paper was supported by a grant from York University. 相似文献
922.
Summary Dichotic sequence discrimination was studied by means of a three-alternative forced-choice method. Two of the alternatives (same) consisted of a single pair of dichotic clicks with the stimulus at one ear preceding the stimulus at the other ear by a given temporal separation (e.g., R-t-L). One of the alternatives consisted of a single pair of clicks with the opposite sequence (e.g., L-t-R). The subjects' task was to discriminate between the different and the same dichotic pairs. The results indicate that discrimination is a nonmonotonic function of t, i.e., V- or U-shaped, with high levels at both short and long temporal separations (t=2 and 4 ms and t=64 and 96 ms) and with lower levels of discrimination for intermediate ts. A second experiment was performed to study the effect of continued practice by subjects trained in dichotic sequence discrimination for ts 4 and 64 ms (high discrimination levels) and for t=16 ms (low discrimination level). There was no systematic trend towards improvement over 8 blocks of 50 trials for each t. Discrimination levels of these ts did not differ between Experiments 1 and 2.Dr. Babkoff is spending the 1979–1981 academic year at the Walter Reed Army Institute of Research, Department of Military Medical Psychophysiology, Forest Glen Annex, Building 189, Washington, D.C. 20012, USAThe experiments were conducted at the Bar-Ilan University, Ramat-Gan, Israel. The authors would like to thank the Bar-Ilan Research Committee for making funds available to conduct the experimentsThis material has been reviewed by the Walter Reed Army Institute of Research, and there is no objection to its presentation and/or publication. The opinions or assertions contained herein are the private views of the authors and are not to be construed as official or as reflecting the views of the Department of the Army or the Department of Defense 相似文献
923.
924.
LAURALEE K. ROCKWELL ALBERT B. HOOD VIRGINIA E. LEE 《Journal of counseling and development : JCD》1980,59(3):135-138
Retired and emeritus members of APGA answered a survey on their lives in retirement, their recommendations to APGA concerning activities for retired members, their suggestions for training programs in geriatric counseling, and their advice to younger counselors on planning for retirement. The results indicate most retired counselors are financially comfortable and continue to lead happy and productive lives in retirement. In their recommendations the counselors emphasized the need to remain active and stressed the importance of planning well in advance of actual retirement. They had many specific suggestions for APGA programming. 相似文献
925.
Victor J. Malatesta Patricia B. Sutker Henry E. Adams 《Journal of psychopathology and behavioral assessment》1980,2(4):309-317
A 32-year-old male volunteer with an eight year history of chronic unilateral tinnitus (ear-ringing) participated in a behavioral assessment strategy that included a series of measurement and modification procedures. A psychophysical matching technique was employed throughout a planned combination of procedures to assess and manipulate the intensity or loudness of tinnitus responses. Following baseline assessment, measurements were conducted at varying times of the day, concomitant with exposure to music, during progressive relaxation training, and under conditions of caffeine consumption. The value of careful assessment to describe cues and conditions associated with tinnitus and its reduction are discussed with implications for behavior treatment design and evaluation. 相似文献
926.
927.
L. B. Cebik 《Theoretical medicine and bioethics》1980,1(1):67-83
Heidegger's conception of death as an attitude toward life, overlooked in current literature on death and dying, offers potential for deepening our understanding of the care of non-critically ill patients. By breaking away from the notion of death as an event distinct from life and viewing it as an anticipated possibility at every moment of life, Heidegger provides insight into our attempts to evade death through our fundamental attitudes and value commitments, which in turn determine our behavior and actions. When combined with a method of application — the Nietzschean principle of reversal — these insights permit the understanding of diverse types of human mentality confronted with significant situations. Among the most important applications of these conceptions is to persons in need of medical care, and the resultant types, which are sampled as hypothetical cases, carry important implications for the sensitive care and psychosocial management of non-terminally ill patients. 相似文献
928.
Richard B. Millward 《Behavior research methods》1980,12(2):178-192
BANDAID is an intelligent computer-assisted instruction (ICAI) system designed for students learning to program in BASIC. The major thesis is that beginning students need a friendly environment, that is, one in which information about the language and the system are immediately available. The system accepts most commands without switching levels: BASIC lines are parsed on input with very specific error messages. An editor allows corrections of BASIC lines. The program can be traced while running, and an indefinite number of HELP comments can be written for the system. Without leaving the BASIC environment, the user can interact with the CMS monitor of the main machine running the program. Although no English language comments or questions are allowed, the system is modular so that additions of restrictive dialogue interaction and guided tutoring are possible. Illustrations are presented showing the capabilities of the system. The paper also presents some of the implementation details of BANDAID. A flexible system requires implementation in LISP, so examples of how the system programmer interacts with LISP during debugging are given. Although still incomplete, the system runs satisfactorily and can be used easily by beginning students and by psychologists interested in how people learn complex subjects. 相似文献
929.
Several recent studies by Lehiste have reported that changes in fundamental frequency (F0) can serve as a cue to perceived vowel length and, furthermore, that the perceived lengthening of the vowel can influence perception of the voicing feature of stop consonants in syllable-final position. In Experiment 1, we replicated Lehiste’s basic results for stop consonants in final position. Experiment 2 extended these results to postvocalic fricatives. The final consonant in syllables of intermediate vowel duration was more often perceived as voiced when F0 was falling than when F0 was monotone. In Experiment 3, we examined the F0 contours produced by eight talkers before postvocalic stop consonants and fricatives in natural speech for minimal pairs of words differing in voicing. The amount of change of F0 over the vowel was no greater before voiced than voiceless consonants, suggesting that the earlier perceptual effects cannot be explained by appealing to regularities observed in the production of F0 contours in vowels preceding postvocalic consonants. 相似文献
930.
Ryan D. Tweney Michael E. Doherty Winifred J. Worner Daniel B. Pliske Clifford R. Mynatt Kimberly A. Gross Daniel L. Arkkelin 《Quarterly journal of experimental psychology (2006)》1980,32(1):109-123
It has long been known that subjects in certain inference tasks will seek evidence which can confirm their present hypotheses, even in situations where disconfirmatory evidence could be more informative. We sought to alter this tendency in a series of experiments which employed a rule discovery task, the 2-4-6 problem first described by Wason. The first experiment instructionally modified subjects confirmatory tendencies. While a disconfirmatory strategy was easily induced, it did not lead to greater efficiency in discovering the rule. The second experiment introduced subjects to the possibility of disconfirmation only after they had developed a strongly held hypothesis through the use of confirmatory evidence. This manipulation also failed to alter the efficiency of rule discovery. In the third experiment, subjects were taught to use multiple hypotheses at each step, in the manner of Platt's “Strong Inference”. This operation actually worsened performance. Finally, in the fourth experiment, the structure of the problem was altered slightly by asking subjects to seek two interrelated rules. A dramatic increase in performance resulted, perhaps because information which in previous tasks was seen as merely erroneous could now be related to an alternative rule. The four studies have broad implications for the psychological study of inference processes in general, and for the study of scientific inference in particular. 相似文献