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   1530篇
  免费   72篇
  2023年   6篇
  2021年   12篇
  2020年   28篇
  2019年   47篇
  2018年   41篇
  2017年   44篇
  2016年   50篇
  2015年   30篇
  2014年   35篇
  2013年   179篇
  2012年   56篇
  2011年   82篇
  2010年   55篇
  2009年   36篇
  2008年   68篇
  2007年   57篇
  2006年   72篇
  2005年   51篇
  2004年   48篇
  2003年   49篇
  2002年   48篇
  2001年   20篇
  2000年   19篇
  1999年   22篇
  1998年   30篇
  1997年   11篇
  1996年   33篇
  1995年   21篇
  1994年   17篇
  1993年   19篇
  1992年   21篇
  1991年   21篇
  1990年   17篇
  1989年   12篇
  1988年   14篇
  1987年   16篇
  1986年   16篇
  1985年   18篇
  1984年   20篇
  1983年   13篇
  1982年   16篇
  1981年   15篇
  1980年   17篇
  1979年   9篇
  1978年   15篇
  1977年   11篇
  1976年   6篇
  1975年   8篇
  1974年   7篇
  1973年   13篇
排序方式: 共有1602条查询结果,搜索用时 15 毫秒
981.
Comorbidity in clinical youth populations is more the rule than the exception, yet few established guidelines exist to help practicing clinicians manage complex diagnostic profiles. The current paper reviews efforts within the treatment development literature to handle comorbidity in depressed and anxious children and adolescents, including single-target, modular-based, and transdiagnostic interventions. Two case studies are presented to describe how comorbid anxiety and depression are managed within two different evidence-based single-target interventions. A third case is presented to introduce a novel individual behavioral activation therapy (IBAT) designed to address co-occurring depression and anxiety by targeting a single maintaining mechanism (avoidance) that underlies both disorders. Implications for clinical decision-making (assessing complex clinical profiles in practice, prioritizing treatment goals, selecting interventions from a broad evidence base) are discussed.  相似文献   
982.
Objective: To examine factor structures of Diagnostic and Statistical Manual of Mental Disorders (4th ed.) symptoms of ADHD in adults. Method: Two sets of models were tested: (a) models with inattention and hyperactivity/impulsivity as separate but correlated latent constructs and (b) hierarchical general factor models with a general factor for all symptoms and separate specific factors for inattention and hyperactivity/impulsivity. Participants were 751 adults with ADHD. Two models with correlated factors and two general factor models of ADHD symptoms were tested. Results: The general factor model provided a better fit of the data than the correlated models. The general factor model with one general and three (inattention, motoric, and verbal hyperactivity/impulsivity) specific factors best accounted for the adults' symptoms. Conclusion: These results suggest a unitary component to ADHD symptoms as well as dimensional specific factors. The replication of a general factor in adults suggests continuity of symptom presentation from childhood into adulthood. Clinical implications are discussed.  相似文献   
983.
An experiment was designed to determine the degree to which reciprocal aiming movements of the wrist and arm with various accuracy requirements (Fitts' tasks) are enhanced by extended practice. The vast majority of research on motor learning shows performance improvement over practice. However, literature examining the effect of practice on Fitts' task performance is limited and inconclusive. Participants were asked to flex/extend their limb/lever in the horizontal plane at the wrist (arm stabilized) or elbow joint (wrist stabilized) in an attempt to move back and forth between two targets as quickly and accurately as possible. The targets and current position of the limb were projected on the screen in front of the participant. Target width was manipulated with amplitude constant (16°) in order to create indexes of difficulty (ID) of 1.5, 3, 4.5, and 6. Contrary to the earlier reports, after 20 days of practice, we found minimal changes in movement time or the movement time-ID relationships for the arm and wrist over practice. However, the variability in the movement endpoints decreased over practice and wrist movements at ID=6 were characterized by shorter movement times and longer dwell times relative to arm movements with dwell time for the wrist increasing over practice. These data are consistent with the notion that Fitts' tasks provide a stable measure of perceptual-motor capabilities.  相似文献   
984.
Teenage drivers have been shown to have some of the highest crash risks. Crash data provide some insights on factors related to crash likelihood, but rarely capture all issues that can arise from driver distraction. The goal of this study was to assess teenage drivers’ opinions and perceptions of driver distraction. A survey of 1893 Iowa teenagers was conducted to determine and compare the frequency of engagement in distracting activities while driving to their opinions of what they actually consider to be distractions. A cluster analysis was conducted based on their indicated engagement in distracting activities with three groups emerging and classified as INFREQUENT, MODERATE, and FREQUENT engagers. Across all cluster groups, the majority (over 80%) indicated that they considered text messaging to be a distracting task. However, those clustered as FREQUENT engagers still reported a high level of texting while driving even though they considered this task to be distracting. A binary logistic regression model (adjusted for miles driven and license type) showed that FREQUENT and MODERATE engagers were more likely to be involved in a crash when compared to INFREQUENT engagers. The study demonstrates that not all teenagers place themselves at risk. There are subgroups of teenage drivers that often engage in activities they know are distracting, potentially putting themselves in danger. However, this is not the case for all teenage drivers and it is important to target interventions appropriately as well as foster a culture of safety both in schools and at home.  相似文献   
985.
Minne EP  Semrud-Clikeman M 《Autism》2012,16(6):586-602
The key features of Asperger Syndrome (AS) and high functioning autism (HFA) include marked and sustained impairment in social interactions. A multi-session, small group program was developed to increase social perception based on the assumption perceptual or interpretive problems underlying these social difficulties. Additionally, the group format espoused a play therapy orientation and the use of sociodramatic play was the primary therapeutic modality used. Qualitative analyses of the data resulted in an explanation of the key changes in social interactions that took place through the course of the intervention. Although each participant's experience in this group was unique, all children in this program demonstrated improvements in their social interactions, as they experienced development both emotionally and behaviorally. Findings suggest that, despite their rigid interests and behavior patterns, the social limitations of these children improved when provided with the necessary environmental resources.  相似文献   
986.
Objective: Supervision is an important requirement for most health professionals and finding innovative and creative forms of ensuring safe and ethical practice are helpful to practitioners. This paper explores the use of fairy tales, mental landscapes and metaphors to illuminate the therapeutic and supervisory relationship. A therapy case study was used as reference. Design: The design was based on a grounded theory methodology and qualitative‐based collaborative meetings between professionals. Both researchers/participants were from different therapeutic backgrounds; drama therapy and integrative counselling. Findings: Two main themes emerged relating to the therapeutic process: (1) Using Archetypal themes in fairy tales to enhance the clarity of the therapeutic landscape; and (2) The facilitation of the sense system through the use of small objects to reconceptualise the therapeutic dynamic. Conclusion: The use of metaphor and small objects to explore retrospective therapeutic encounters can enhance the role of supervision by broadening the cognitive landscape of the therapist. Implications for the therapist/client and supervisor relationships are considered.  相似文献   
987.
988.
In the past decade, interest has flourished in the empirical study of forgiveness in the wake of intergroup conflicts. In the current paper, we sought to empirically integrate the diverse predictors of intergroup forgiveness building on a tripartite model that incorporates affective, cognitive, and constraining features. Using a random effects approach, we meta-analyzed (N = 13,371; k = 43) correlates of intergroup forgiveness across diverse conflicts (e.g. 65% intrastate, 35% interstate) and populations (20 different nationalities; 60% female). We tested the effect of nine distinct predictors and investigated study characteristics as moderators of these effects (i.e. sex of victim and conflict type). Collective guilt [r = 0.49] and trust [r = 0.42] emerged as the strongest facilitators, whereas negative emotions [r = ?0.33] and in-group identity [r = ?0.32] emerged as the strongest barriers to intergroup forgiveness. We discuss practical applications of these findings.  相似文献   
989.
990.
Margaret MacDougall 《Topoi》2014,33(2):323-337
Evidence, as viewed through the lens of statistical significance, is not always as it appears! In the investigation of clinical research findings arising from statistical analyses, a fundamental initial step for the emerging fraud detective is to retrieve the source data for cross-examination with the study data. Recognizing that source data are not always forthcoming and that, realistically speaking, the investigator may be uninitiated in fraud detection and investigation, this paper will highlight some key methodological procedures for providing a sounder evidence base for withdrawing from a study on grounds of integrity. The promotion of patient safety is paramount. However, there is a broader rationale for disseminating these ideas. This includes empowering researchers to optimize their personal integrity, make informed choices regarding membership of future research collaborations and successfully voice their concerns to journal editors, particularly where a conflict of interests can render such dialogues particularly difficult. Recommendations will be supported by topical case studies and practical steps involving data exploration, testing of baseline data and application of Benford’s Law. While this paper has a clinical focus, the advice provided is transferrable to a wide range of multidisciplinary research settings outside of Medicine.  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