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   31039篇
  免费   1434篇
  国内免费   21篇
  2020年   384篇
  2019年   400篇
  2018年   603篇
  2017年   577篇
  2016年   621篇
  2015年   473篇
  2014年   553篇
  2013年   2327篇
  2012年   1011篇
  2011年   1045篇
  2010年   651篇
  2009年   609篇
  2008年   839篇
  2007年   835篇
  2006年   728篇
  2005年   671篇
  2004年   630篇
  2003年   576篇
  2002年   607篇
  2001年   1273篇
  2000年   1263篇
  1999年   870篇
  1998年   336篇
  1997年   325篇
  1996年   293篇
  1995年   260篇
  1992年   693篇
  1991年   628篇
  1990年   666篇
  1989年   597篇
  1988年   579篇
  1987年   540篇
  1986年   544篇
  1985年   527篇
  1984年   451篇
  1983年   387篇
  1982年   272篇
  1979年   395篇
  1978年   327篇
  1977年   271篇
  1975年   361篇
  1974年   447篇
  1973年   411篇
  1972年   371篇
  1971年   333篇
  1970年   293篇
  1969年   356篇
  1968年   397篇
  1967年   339篇
  1966年   327篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
961.
Infantile Colic is a behavioral syndrome characterized by paroxysms of excessive crying and increased motor activity, hypertonicity of the musculature, excessive flatus and erratic sleeping and feeding patterns. Ten to 40% of all infants are diagnosed as having Colic. The medical evidence to date does not justify any conclusions regarding the etiology or treatment of Colic. Typically, parents are advised to simply wait until Colic has run its course which is often 3-4 months. The behavioral program reported here was designed to increase behavior that competed with crying by reinforcing quiet alertness with music and parental attention. Concurrently, it attempted to inhibit excessive crying by a brief time-out procedure. A group of 8 infants diagnosed as Infant Colic were included in this study. The dependent variable, crying, was measured through direct observations based on hourly samples involving 30 observations of 2-min intervals. The independent variable consisted of a behavioral treatment package. A within-S reversal design was used to assess the functional properties of the treatment. The results show that across all 8 infants the introduction of the treatment package led to a substantial decrease in excessive crying of about 75% of the initial baseline. Further, a functional relationship was identified between the treatment and excessive crying behavior: crying decreased when the treatment was initially introduced, it resumed when the treatment was withdrawn and decreased again when the treatment was reinstated.  相似文献   
962.
The effectiveness of an integrated treatment program utilizing cognitive-behavioral therapies for Panic Disorder was examined. Treatment was comprised of Cognitive Model of Panic-derived procedures, Cognitive Therapy and Applied Relaxation Training. Subjects meeting DSM-III-R criteria for Panic Disorder received thirteen 2.5-hr sessions of outpatient therapy in small groups, over a 12-week period. Subjects were given an extensive rationale of the etiology, development and maintenance of Panic Disorder, within the framework of the Cognitive Model of Panic, and controlled behavioral experiments in panic evocation to internal panicogenic cues, cognitive reappraisal of somatic and ideational cues, breathing retraining, Applied Relaxation Training and Cognitive Therapy to identify and remediate maladaptive beliefs and dysfunctional cognitive schemas. A comprehensive assessment battery was given at pre-mid-post-treatment which included measures of tripartite functioning, global severity, panic, fear, anxiety, depression and psychiatric symptomatology. Analyses indicated statistically significant improvements across all outcome domains. All subjects were free of spontaneous (uncued) panic attacks at post-treatment, and all met operationalized criteria for high endstate functioning. These findings are discussed, with recommendations for future research.  相似文献   
963.
The influence of family support on chronic pain   总被引:2,自引:0,他引:2  
  相似文献   
964.
The present study was designed to determine the main effects of alcohol intoxication on self-report and physiological measures of anxiety. Second, we aimed to assess the role of the Marlowe-Crowne Social Desirability (MCSD) scale in predicting the relationship between self-report and physiological indices of anxiety irrespective of drink content. A final purpose of the study was to determine whether the MCSD could account for discrepancies in the effects of alcohol on the two anxiety response systems. Subjects were male social drinkers who received an 0.70 g/kg dose of alcohol or placebo. Results indicated that irrespective of drink content, subjects with high MCSD scores reported lower levels of anxiety than did subjects with low MCSD scores. This relationship was not evident for heart rate. These results for measures of anxiety were not influenced by drink content.  相似文献   
965.
Psychophysiological process and outcome phenomena were analyzed to examine differential temporal patterns within and across cognitive, behavioral and physiologically-based treatments of agoraphobia. Eighty-eight severe and chronic agoraphobics with panic attacks (DSM-III) were randomly assigned to one of three treatments: Paradoxical Intention, Graduated Exposure or Progressive Deep Muscle Relaxation Training. Protocol therapists, whose treatment integrity was objectively monitored, conducted 12 two-hour weekly sessions. All subjects received programmed practice instructions concurrent with their primary treatment. Analyses revealed numerous significant reductions on in vivo psychophysiological measures for the relaxation condition, a few improvements for the exposure treatment and no effects for the paradoxical intention modality. The mediating role of pretreatment physiological reactivity in treatment outcome and follow-up status was examined and revealed no significant associations. Synchrony-desynchrony patterns were found to vary widely according to both treatment phase and the time interval between assessments. No between-group differences were observed on the proportion of synchronizers. However, synchronizers exhibited superior outcome and follow-up compared to desynchronizers on all domains except the physiological measures. Conceptual, methodological and clinical implications of these findings are discussed with recommendations for future research.  相似文献   
966.
Ethical and malpractice issues arising in hospital practice are reviewed. Topics include (a) preparation and authorization to carry out clinical responsibilities, (b) personnel procedures, (c) financial and political forces influencing hospital policies, (d) billing procedures, (e) clinical procedures for responding to patients' needs, (f) confidentiality, (g) discrimination, (h) internship and training issues, (i) sexual abuse of patients, and (j) staff conflicts influencing patient care.  相似文献   
967.
Previous work by Porac, Coren, and Searleman (1986) looked at overt attempts to change hand preference from the left to the right side. We extended this research by studying individuals who shifted their handedness from the left to the right side as well as a group who attempted a shift in the opposite direction (right to left). Comparisons of the two shift attempts revealed that the timing, method, and agent of change differed significantly for right versus left shifts. More right than left shifts were successful. Overall, most shift attempts were rated as unsuccessful because they did not result in a handedness classification consistent with the direction of the shift. Individuals classified as successful shifters, whether in the right or left direction, displayed a more ambihanded behavioural pattern than either unsuccessful shifters or the no shift control group. Evidence suggested that left-shift attempts were promoted by original ambihanded tendencies but that ambihandedness in successful right shifts stemmed from the partial success of the switch attempt.  相似文献   
968.
In this paper, we study the ability of a non-fluent aphasic patient, BN, to comprehend morphologically complex words when they appear in utterance contexts. We first establish that he is insensitive to the contextual appropriateness of both derived and inflected words. In a further experiment we show that he has no difficulty processing the stems of complex words and conclude that his problem is with the bound morphemes themselves. We then ask whether this problem is due to his inability to access either the phonological form of a morphologically complex word or its semantic and/or syntactic content. We find that only the access of semantic and syntactic content is impaired. We conclude from these six studies that: (a) BN presents a counter-example to the claim that non-fluent patients have particular difficulty with those aspects of morphology which have a syntactic function; (b) BN processes both derived and inflected words by mapping the sensory input onto the entire full-form of a complex word, but the semantic and syntactic content of the stem alone is accessed and integrated into the context. The semantic and syntactic implications of the suffix are never evaluated. This implies separate representation of the stems and suffixes of some types of morphologically complex words.  相似文献   
969.
The relationship between gender and social skill measured by performance on a role play test was examined in a sample of 57 schizophrenics, 33 affective disorder patients, and 20 nonpatient controls. Female schizophrenics were more skilled than male schizophrenics, but no gender differences were present in the affective patients or the controls. Longitudinal analyses conducted on the schizophrenic group indicated that the superior social skill of women was stable over the year following a symptom exacerbation. Symptoms and social adjustment improved for both men and women over the year, but did not differ according to gender. The implications of the results for gender differences in the long-term outcome of schizophrenia are discussed.  相似文献   
970.
This study is to report a cross-cultural comparison on perceptions of icons and graphics and their relationships. Data were ratings of 10 icons and 10 graphics against 21 bipolar semantic differential scales from 325 college students in three countries, Mexico, Columbia, and Japan. Cross-cultural factor analyses resulted in the identification of four semantic (three affective and one denotative) features, three icon factors, and three graphic factors. Indigenous cultural means of these iconic and graphic factors were computed and used to probe cross-cultural similarities and differences in perceptions. Psychosemantics of icon factors were further predicted by graphic factors through canonical correlation. This study concludes the importance of implicit cultural meanings of nonverbal figures in intercultural communications. The implications of this study are also discussed.  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