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   2779篇
  免费   396篇
  国内免费   104篇
  2024年   14篇
  2023年   85篇
  2022年   35篇
  2021年   68篇
  2020年   179篇
  2019年   188篇
  2018年   136篇
  2017年   168篇
  2016年   153篇
  2015年   126篇
  2014年   116篇
  2013年   544篇
  2012年   67篇
  2011年   82篇
  2010年   65篇
  2009年   64篇
  2008年   89篇
  2007年   70篇
  2006年   98篇
  2005年   72篇
  2004年   79篇
  2003年   82篇
  2002年   72篇
  2001年   72篇
  2000年   54篇
  1999年   44篇
  1998年   43篇
  1997年   48篇
  1996年   29篇
  1995年   31篇
  1994年   28篇
  1993年   28篇
  1992年   28篇
  1991年   13篇
  1990年   11篇
  1989年   13篇
  1988年   10篇
  1987年   13篇
  1986年   14篇
  1985年   8篇
  1984年   10篇
  1983年   7篇
  1982年   13篇
  1981年   9篇
  1980年   15篇
  1979年   14篇
  1978年   22篇
  1977年   21篇
  1976年   16篇
  1975年   13篇
排序方式: 共有3279条查询结果,搜索用时 15 毫秒
941.
The present study was designed to examine the influence of explanation-based knowledge regarding system functions and the driver’s role in conditionally automated driving (Level 3, as defined in SAE J3016). In particular, we studied how safely and successfully drivers assume control of the vehicle when encountering situations that exceed the automation parameters. This examination was conducted through a test-track experiment. Thirty-two younger drivers (mean age = 37.3 years) and 24 older drivers (mean age = 71.1 years) participated in Experiments 1 and 2, respectively. Adopting a between-participants design, in each experiment the participants were divided into two age- and sex-matched groups that were given differing levels of explanation-based knowledge concerning the system limitations of automated driving. The only information given to the less-informed groups was that, during automated driving, drivers may be required to occasionally assume control of the vehicle. The well-informed groups were given the same information, as well as details regarding the auditory-visual alerts produced by the human–machine interface (HMI) during requests to intervene (RtIs), and examples of situations where RtIs would be issued. Ten and nine RtI events were staged for each participant in Experiment 1 and 2, respectively; the participants performed a non-driving-related task while the automated driving system was functioning. For both experiments it was found that, for all RtI events, more participants in the well-informed groups than the less-informed groups successfully assumed control of the vehicle. These results suggest that, in addition to providing information regarding the possible occurrence of RtIs, explanations of HMI and RtI-related situations are effective for helping both younger and older drivers safely and successfully negotiate such events.  相似文献   
942.
反刍思维是一种重复性的消极思维, 会让个体将注意集中在消极痛苦的事情上。研究表明, 反刍思维和注意脱离损坏虽然是相互独立的概念, 但是二者却存在着密切的联系, 具体表现在注意脱离损坏会预测个体的反刍思维以及反刍思维有关的注意脱损坏可能是受到意识控制的。同时, 反刍思维的类型和自我相关性在反刍思维和注意脱离损坏关系中的作用依然需要进一步探究。另外, 注意脱离有关的训练明显地改善了个体的反刍思维。并且, 杏仁核的过度激活, 前扣带回(anterior cingulate cortex, ACC)对自我相关消极信息的调节异常, 右背外侧前额叶(dorsal lateral prefrontal cortex, DLPFC)的活动异常以及与注意有关的脑神经网络的结构和功能的异常可能是反刍思维和注意脱离损坏相互影响的原因。  相似文献   
943.
Session notes are a required component of documenting behavior analytic sessions. The direct training of writing objective session notes is important to the success of direct line staff completing adequate documentation and meeting requirements set forth by agencies, certification boards, and insurance funders. However, in‐person training is not always immediately available due to contextual restrictions. This study evaluated the effectiveness of implementing the teaching interaction procedure when training staff remotely to objectively document client progress within session notes. Three Registered Behavior Technicians? (RBT®s) were trained via telehealth to complete session notes objectively. Results showed that all 3 participants met the mastery criterion during probes measuring the objective documentation of home‐based behavior analytic sessions. These findings suggest that a training package, such as the teaching interaction procedure, can be effectively implemented remotely when conducting staff training.  相似文献   
944.
Resurgence occurs when a previously reinforced and then extinguished target response increases due to reducing/eliminating an alternative source of reinforcement or punishing an alternative response. We evaluated whether duration of reinforcement history for a target response (1) affects the degree to which resurgence is observed in humans and (2) produces different gradients of response generalization around target responding during extinction testing. We arranged a novel touchscreen interface in which university students could swipe a 3D soccer ball to spin any direction. In Phase 1, the first direction swiped became the target and produced points exchangeable for money for 3 or 1 min across 2 groups. The first swipe was recorded but had no programmed consequence in a third group. In Phase 2, swipes 180-degrees from the target resulted in points for 3 min in all groups. Point deliveries ceased for 2 min to test for resurgence in Phase 3. Target responses resurged during testing to a relatively greater extent with longer Phase-1 training but gradients of response generalization did not differ among groups. These findings extend prior research on the role of training duration on resurgence. We discuss methodological and conceptual issues surrounding the assessment of response generalization in resurgence.  相似文献   
945.
以977名9~14岁学生为对象,探索负性生活事件与儿童反应性攻击性之间的关系。研究使用了反应性与主动性攻击性问卷、Rosenberg自尊量表、青少年生活事件量表、艾森克人格问卷(儿童版)–情绪稳定性维度问卷,建立了以自尊和情绪稳定性作为中介变量,描述负性生活事件与反应性攻击性之间关系的结构方程模型。结果发现,负性生活事件可直接影响儿童反应性攻击性的形成,同时还可以通过改变情绪稳定性来影响反应性攻击性,即当负性生活事件发生时,情绪状态会倾向于不稳定,进而提高反应性攻击性的水平。此外,负性生活事件也会通过降低自尊水平来提高情绪状态的不稳定性,从而提高反应性攻击性的水平。  相似文献   
946.
This study explored experiences of power among 11 African American female pastoral counselors‐in‐training. Limited research exists within the field of pastoral counseling regarding the dynamics of power within the development of minority counselors‐in‐training. Experiences of power such as microaggressions and empowerment were evidenced in the art created by participants during their qualitative interviews. Use of a heuristic arts‐based research design resulted in 6 final essences (major themes): symbolic analysis of the journey of identity development, empowerment, powerlessness, ownership of power, integration, and pervasive spirituality. Practical implications for counselor educators and pastoral counseling programs are provided.  相似文献   
947.
《Behavior Therapy》2022,53(5):995-1008
Women with breast cancer experience social disruption during and after treatment. Brief cognitive-behavioral (CBT) and relaxation (RT) interventions may improve social disruption by increasing positive affect. Using the Broaden-and-Build Theory as a framework, this study examined whether short-term CBT- and RT-related increases in positive affect mediate long-term reductions in social disruption in women with breast cancer undergoing treatment (N = 183). This secondary analysis used latent change score and growth models to test 6- and 12-month intervention effects on positive affect and social disruption, respectively; a parallel-process model assessed mediation. RT demonstrated larger reductions in social disruption across 12 months compared to CBT and a health education control. Six-month latent change in positive affect was significant but not driven by condition. There was a significant direct effect linking the latent slopes of positive affect and social disruption but meditation was not observed. These preliminary findings hint at the value of promoting positive affect and inform the development of brief behavioral interventions that aim to augment social functioning among women surviving breast cancer.  相似文献   
948.
ObjectiveTraining lay providers to deliver mental health interventions is both effective and cost-effective. However, more research is needed to document training and supervision procedures and to collect lay providers’ feedback.MethodsThis study documents training and supervision from a randomized controlled trial of the Shamiri intervention, a four-session, school-based intervention that significantly reduced symptoms of anxiety and depression in Kenyan adolescents. We delivered a 10-hour training to 13 lay providers, M (SD)age = 21.00 (1.95), %female = 61.54. We also hosted 30-minute supervision meetings twice weekly. Training and supervision were delivered primarily by undergraduates. Independent raters coded session recordings for fidelity and quality of services, and we collected quantitative and qualitative feedback from lay providers.ResultsReliability and mean ratings for all six of our fidelity and quality measures (delivering required content, adhering to specified details, thoroughness, skillfulness, clarity, and purity) were very good to excellent. Lay provider quantitative ratings of training were also overwhelmingly positive, with an overall satisfaction rating of 6.46/7.00. We identified central qualitative themes in lay provider comments: Generally, comments about training style, content, and personal interactions were overwhelmingly positive, and many lay providers reported personal growth. Comments about timing and location of training were mixed.ConclusionsThis study provides preliminary evidence that a very brief training delivered primarily by undergraduates can teach high school-graduate lay providers to deliver effective mental health interventions. Additionally, we discuss lessons learned and implications for future research, including the importance of considering local context when planning and of continuously collecting and addressing lay provider feedback.  相似文献   
949.
蒋涵 《心理科学进展》2022,30(8):1747-1758
注意缺陷多动障碍(简称ADHD)是一种常见的儿童神经发育性障碍。当前用于儿童ADHD的传统(线下)教育康复模式存在缺少学业实效、教师低参与、学校管理经验不足以及遇到特殊情况(如疫情)无法服务等问题。本研究在脑电生物反馈认知训练的基础上, 以解决问题和循证研究为设计思路, 为中国ADHD患儿构建教育康复线上模式并进行初步应用。本研究分为3个子研究:研究1采用访谈法和问卷调查法对中国儿童ADHD教育康复的现状调查并分析患儿及关键相关人(家长和教师)需求; 研究2采用随机对照单盲试验(干预组和对照组各为50人), 评价基于脑电生物反馈认知训练(NCT)的教育康复线上模式的有效性; 研究3采用一个更大被试样本量(每组n = 100)的(家长为中介人干预组/教师为中介人干预组/对照组)×(诊断组/亚诊断组)随机对照研究评价由干预中介人(家长或教师)参与的线上模式的有效性, 以及一个纵向质性研究发现关键相关人对于线上模式的接受情况。研究旨在为中国ADHD患儿提供一个有效且好用的教育康复形式。  相似文献   
950.
IntroductionSoccer is a complex game in which athletes perform in a dynamic 360°-environment. The results of numerous studies highlight the importance of perceptual-cognitive functions for soccer performance. Moreover, in recent years, the idea of improving sports performance through systematic perceptual-cognitive training has been increasingly investigated. Contradictory results and limitations in previous research call for further investigation. The current study aims to investigate both the relationship between perceptual-cognitive performance in a dynamic 360°-environment and soccer performance as well as the effects of perceptual-cognitive training in such an environment on soccer performance.Methods42 youth soccer players aged 11–13 years were tested at a first time of measurement (T1) on their perceptual-cognitive functions using a 360°-multiple object tracking task (360-MOT) and a visuospatial attention task. Soccer performance was assessed using an isolated, validated 360°-passing task and a small-sided game. Subsequently, participants were randomly divided into a perceptual-cognitive training group, an active control group, or a passive control group. Participants in the training group received 360-MOT training twice per week during a 5-week intervention phase, while participants in the active control group received a pseudo video training. Perceptual-cognitive and soccer-specific performance was assessed after the intervention phase at a second time of measurement (T2).ResultsAt T1, there was a significant positive relationship between 360-MOT performance and both the accuracy score in the 360°-passing task and the defensive performance score in the small-sided game. Regarding the perceptual-cognitive training intervention, the analysis at T2 revealed significant task-specific training effects but no transfer effects on perceptual-cognitive or soccer-specific performance.ConclusionsThe results highlight the relevance of perceptual-cognitive performance in a 360°-environment for soccer-specific performance but question the effects of short isolated perceptual-cognitive training interventions on soccer-specific performance.  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