全文获取类型
收费全文 | 6395篇 |
免费 | 386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 | 217篇 |
2016年 | 216篇 |
2015年 | 157篇 |
2014年 | 187篇 |
2013年 | 741篇 |
2012年 | 302篇 |
2011年 | 327篇 |
2010年 | 200篇 |
2009年 | 212篇 |
2008年 | 262篇 |
2007年 | 281篇 |
2006年 | 235篇 |
2005年 | 234篇 |
2004年 | 227篇 |
2003年 | 201篇 |
2002年 | 213篇 |
2001年 | 103篇 |
2000年 | 112篇 |
1999年 | 106篇 |
1998年 | 92篇 |
1997年 | 85篇 |
1996年 | 94篇 |
1995年 | 87篇 |
1994年 | 77篇 |
1993年 | 62篇 |
1992年 | 81篇 |
1991年 | 61篇 |
1990年 | 52篇 |
1989年 | 50篇 |
1988年 | 48篇 |
1987年 | 42篇 |
1986年 | 46篇 |
1985年 | 62篇 |
1984年 | 59篇 |
1983年 | 50篇 |
1982年 | 72篇 |
1981年 | 71篇 |
1980年 | 52篇 |
1979年 | 52篇 |
1978年 | 43篇 |
1977年 | 66篇 |
1976年 | 40篇 |
1975年 | 46篇 |
1974年 | 38篇 |
1973年 | 45篇 |
1972年 | 35篇 |
排序方式: 共有6783条查询结果,搜索用时 15 毫秒
91.
Peter D. Mott 《Theoretical medicine and bioethics》1990,11(2):95-102
The issues involved in decision making about the aggressiveness of future medical care for older persons are explored. They are related to population trends, the heterogeneity of older persons and a variety of factors involved in individual preferences. Case studies are presented to illustrate these points, as well as a review of pertinent literature. The argument is offered that, considering these many factors, a system of flexible, individualized care by informed patient preference, is more rational than the rationing of technological services by age. 相似文献
92.
Diana D. Raymond Peter W. Dowrick Chris L. Kleinke 《Counselling psychology quarterly》1993,6(3):193-200
Despite the growing popularity of watching oneself on videotape, little systematic research has been conducted determine viewers' affective responses to video replay. This study addresses the question: what affective responses do women have when they view themselves for the first time on unedited videotape, in comparison to their responses when they view a peer or nature scenes on videotape? Affective responses were measured in three ways: self-report, physiological, and behavioral. Subjects who viewed themselves reported more negative feelings and anxiety, and smiled more frequently than subjects who watched another person or nature scenes on video. Subjects with high private self-consciousness had higher mean arterial blood pressures when viewing themselves than did subjects with low private self-consciousness. Overall, the implications for seeing oneself on video point to potential embarrassment but generally moderate effects. 相似文献
93.
Richard W. Thoreson Peter Shaughnessy Stephen W. Cook Dwight Moore 《Journal of counseling and development : JCD》1993,71(3):337-342
In this study the authors investigated the relationship between the Male Role Norm Scales (MRNS; Thompson & Pleck, 1987) and gender-related attitudes and behaviors in a sample of 367 male counselors drawn from American Counseling Association (ACA), formerly the American Association for Counseling and Development (AACD), members. Results indicated that this group of men did not, in general, endorse traditional male roles as measured by the MRNS. When a degree of affiliation with these roles was found, however, it was predictive of violence proneness, intimacy style, and degree of perceived similarity to father. Implications for training and counseling are discussed. 相似文献
94.
95.
ABSTRACT Following a general model of consensus in interpersonal perception (Kenny, 1991), we report evidence on four sources of consensus and self-other agreement: (a) meaning systems shared by observers, (b) extent of information on target behavior, (c) consistency of target behavior, and (d) non-behavioral information. We argue that these factors can be disentangled more precisely by analyzing ratings by strangers instead of ratings by acquaintances. We then focus on first impressions as a source of self-other agreement, and we report evidence that first impressions of actual persons are quite accurate for Extraversion and Conscientiousness. 相似文献
96.
Gary M. Pace Brian A. Iwata Glynnis Edwards Cowdery Peter J. Andree Therese McIntyre 《Journal of applied behavior analysis》1993,26(2):205-212
Three individuals with developmental disabilities were exposed to a series of assessment conditions to identify the source of reinforcement for their self-injurious behavior. In each case, self-injury occurred most often in instructional (demand) situations containing a brief time-out from the task contingent on self-injury, indicating that the behavior was an escape response (i.e., maintained by negative reinforcement). Treatment was implemented in a multiple baseline across subjects design and consisted of extinction (prevention of escape) plus instructional fading (initial elimination of instructions followed by their gradual reintroduction). Results showed that the combined treatment produced immediate and large reductions in self-injury that were maintained as the frequency of instructions was increased across sessions to match the original baseline rate of presentation. Results of a component analysis conducted with 1 subject suggested that stimulus fading accelerated the behavior-reducing effects of extinction. 相似文献
97.
The purpose of this research was to determine the role of syllabic stress in language processing during the early on-line processing of speech and later in the representation of a sentence in memory. Experiment 1 used a syllable monitoring task while Experiment 3 used a probe task in which subjects heard a sentence and then were asked to determine whether a probe syllable had occurred in the sentence. In the monitoring task, stressed syllables were detected more rapidly in word-initial position, but unstressed syllables were detected more rapidly in word-final position. Stress facilitation in initial syllables was strongly related to high relative F0, but not to changes in perceived vowel quality as assessed in Experiment 2. This pattern is interpreted as evidence that lexical stress is used on-line to guide lexical access and/or lexical segmentation. The probe task of Experiment 3 showed stress facilitation in both positions, indicating that stress is independently retained in the postperceptual representation of a sentence.The research reported in this paper was supported by grant 80-0416 to Harvard University (Peter C. Gordon, Principal Investigator) from the Air Force Office of Scientific Research Life Sciences Directorate. We thank Chris Thurber for his extensive and competent assistance in testing subjects and making acoustic measurements, and Jay Rueckl for comments on an earlier version of this paper 相似文献
98.
Peter S. Jensen Doreen Koretz Ben Z. Locke Stanley Schneider Marian Radke-Yarrow John E. Richters Judith M. Rumsey 《Journal of abnormal child psychology》1993,21(5):551-580
In November 1990 the National Institute of Mental Health (NIMH) convened a special conference of over 100 scientists and leaders to outline specific strategies and research initiatives that should be developed to implement the recently released National Plan for Research on Child and Adolescent Mental Disorders.Participants included journal editors, educators from psychology and psychiatry, representatives from private foundations, and leaders of research program areas in public funding agencies. Critical knowledge gaps were identified in five areas of child and adolescent psychopathology, including depression, attention deficit hyperactivity disorder, conduct disorder, the anxiety disorders, and the developmental disorders. For each of these areas, special emphasis was placed on developing new ideas and obtaining critical input from other areas of investigation. This report summarizes the identified research gaps and recommends research initiatives to implement the National Plan, as outlined by the conference participants. 相似文献
99.
Three cases from a larger review of child abuse inquiry reports are discussed. The abuse the children suffered is termed 'not-existing' because they had been shut away until they perished. Interaction between the children's caretakers and the child protection professionals is examined within a revised framework of the double-bind. 相似文献
100.
Conceptual complexity is a personality characteristic that involves the individual's ability to differentiate and integrate aspects of information. It is usu ally measured with the Paragraph Completion Test (PCT), which requires the completion of six paragraphs, in response to standard stems, often with a time limit of 100-120 sec each. In order to eliminate time pressure, which may reduce complexity, the current study evaluated a revised format that used only two stems but allowed 8 minutes per response. As expected, this procedure resulted in higher scores and produced enough written output to allow analysis of particular test components. Complexity scores from 277 university students were related to total number of words written, sentence length, and number of words with more than three syllables, but not to standard formulae designed to measure readability, such as the Flesch, SMOG and FOG indices. The modest size of the obtained correlations suggests that the scoring of conceptual complexity on the basis of semantic content cannot be replaced by indices based on linguistic and textual components. 相似文献