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   3086篇
  免费   585篇
  国内免费   466篇
  2024年   8篇
  2023年   83篇
  2022年   99篇
  2021年   111篇
  2020年   168篇
  2019年   210篇
  2018年   182篇
  2017年   197篇
  2016年   168篇
  2015年   131篇
  2014年   152篇
  2013年   491篇
  2012年   109篇
  2011年   122篇
  2010年   102篇
  2009年   99篇
  2008年   125篇
  2007年   142篇
  2006年   150篇
  2005年   162篇
  2004年   115篇
  2003年   121篇
  2002年   96篇
  2001年   68篇
  2000年   75篇
  1999年   65篇
  1998年   44篇
  1997年   47篇
  1996年   37篇
  1995年   33篇
  1994年   38篇
  1993年   29篇
  1992年   36篇
  1991年   10篇
  1990年   13篇
  1989年   15篇
  1988年   14篇
  1987年   11篇
  1986年   15篇
  1985年   29篇
  1984年   19篇
  1983年   16篇
  1982年   22篇
  1981年   19篇
  1980年   20篇
  1979年   24篇
  1978年   22篇
  1977年   35篇
  1976年   22篇
  1975年   14篇
排序方式: 共有4137条查询结果,搜索用时 15 毫秒
31.
作业中断会对中断后行为绩效产生影响,探讨不同疲劳状态下中断对作业绩效影响的认知机制将有助于完善和发展中断的认知理论。本研究采用事件相关电位(ERP),通过在不同心理疲劳状态下执行数学题任务中断、暂停中断和不中断的空间2-back任务,结合行为数据和ERPs结果,分析作业中断对任务绩效的影响以及心理疲劳在其中的调节作用。实验结果发现,中断后诱发的P200和P300振幅显著提高,作业中断使得主任务的注意力资源下降,任务中断的无关信息干扰了主任务工作记忆,而疲劳状态则进一步加剧了中断对注意资源、工作记忆及行为绩效的负面效应。本研究在揭示作业中断认知过程及疲劳对其影响机理的同时,也支持了中断的目标记忆模型。  相似文献   
32.
《Médecine & Droit》2023,2023(180):45-53
During an expertise, if the expert “discovers” or is entrusted with information concerning an offence, should he report it to the authorities? Could the expert be sanctioned in the absence of denunciation of a tort or criminal act? The answer will be nuanced on a case-by-case basis. The expert confronted with the revelation of a crime or misdemeanor must decide in good conscience what he reveals in his report, or even report it to the prosecution.  相似文献   
33.
为探讨自闭症和智力障碍儿童行为问题与其父母焦虑的关系及其内在作用机制,研究采用问卷法对1023名自闭症和智力障碍儿童父母进行调查。结果表明:(1)自闭症和智力障碍儿童行为问题对父母焦虑具有正向预测作用;(2)育儿压力在儿童行为问题和父母焦虑间起中介作用;(3)儿童行为问题与育儿压力的关系受到领悟社会支持水平的调节,调节作用只在智力障碍儿童父母群体中显著。研究结果有助于揭示自闭症和智力障碍儿童行为问题对父母焦虑的影响及作用机制,对改善自闭症和智力障碍儿童父母育儿压力与焦虑具有一定指导意义。  相似文献   
34.
35.
Nature-based therapy is an emerging and rapidly developing field within counselling and psychotherapy, yet there is little published empirical research, or integrated models relating to its practice with Children and Young People (CYP). The present study aimed to explore therapists’ experiences of one-to-one nature-based counselling and psychotherapy with CYP, eliciting perspectives on the interaction between nature and the therapeutic process. A reflexive thematic analysis provides preliminary insights into possible mechanisms of action with the potential to inform a longer-term exploration of whether nature-based therapy is effective, for whom and why. The study highlights the need to better explore and understand how nature-based therapy supports relational and intrapsychic change in interaction with developmental processes, to inform construction of coherent and consolidated theory and models for practice.  相似文献   
36.
37.
We reviewed the child and the adult literature on the impact of witnesses drawing what happened on the number of details recalled and the accuracy of the reported details. Most experiments reported a beneficial effect of drawing what happened (or drawing the scene) on the number of details reported primarily in free recall and sometimes also in cued recall. The consensus across studies was that drawing protocols did not negatively impact the accuracy of reported details (when accuracy was attainable) unless suggestive details were drawn. These results were largely consistent regardless of interviewer expertise or protocol used. Draw-and-tell instructions should be considered by forensic investigators for the following reasons: (1) the beneficial effect on number of details recalled with no detriment to accuracy, (2) the added benefit for children who need additional interviewer support, and (3) the ease at which the instruction can be implemented with minimal expertise or training. However, more ecologically valid research is needed to establish the efficacy of drawing (1) in forensic interviews, (2) in the presence of misinformation, (3) across instances of repeated event memory, and (4) across sequential interviews.  相似文献   
38.
《Behavior Therapy》2023,54(1):51-64
Our objective was to evaluate the feasibility and acceptability, and preliminary efficacy of a modified comprehensive behavioral intervention for tics (MCBIT) therapy for youth with chronic tic disorders (CTDs), co-occurring attention-deficit hyperactivity disorder (ADHD), and associated psychosocial impairment. Seventeen youth ages 10–17 with CTD and co-occurring ADHD were randomly assigned to the MCBIT group (n = 9) or to a control group where they received traditional comprehensive behavioral intervention for tics (CBIT) therapy (n = 8). Both groups received ten 55-minute weekly treatment sessions, and two 55-minute biweekly relapse prevention sessions. Sixteen of the 17 participants completed the study, and acceptability ratings in both treatment groups were high with no significant differences in expectation of improvement. The MCBIT and CBIT groups in combination showed significant improvement in tic severity, ADHD symptom severity, and tic-related impairment. Group differences were not significant. The results indicate that MCBIT treatment is feasible and acceptable for youth with CTD and ADHD, and is similarly well tolerated relative to traditional CBIT. Results were not sufficiently superior to recommend MCBIT over CBIT for this population. However, given the demonstrated benefit of behavioral treatments that target co-occurring conditions concurrently, continuing to examine novel behavioral approaches that can target tics and related conditions simultaneously and successfully is recommended.  相似文献   
39.
In a recent article published in this journal, Yuan and Fang (British Journal of Mathematical and Statistical Psychology, 2023) suggest comparing structural equation modeling (SEM), also known as covariance-based SEM (CB-SEM), estimated by normal-distribution-based maximum likelihood (NML), to regression analysis with (weighted) composites estimated by least squares (LS) in terms of their signal-to-noise ratio (SNR). They summarize their findings in the statement that “[c]ontrary to the common belief that CB-SEM is the preferred method for the analysis of observational data, this article shows that regression analysis via weighted composites yields parameter estimates with much smaller standard errors, and thus corresponds to greater values of the [SNR].” In our commentary, we show that Yuan and Fang have made several incorrect assumptions and claims. Consequently, we recommend that empirical researchers not base their methodological choice regarding CB-SEM and regression analysis with composites on the findings of Yuan and Fang as these findings are premature and require further research.  相似文献   
40.
跨期选择是对不同时间点的得失的权衡与选择。伊索寓言《蚂蚁和蚱蜢》假借群居型昆虫的跨期选择偏爱暗喻投资未来的慢策略比只顾眼前的快策略更利于生存。用跨期选择领域通用的语言解读这一寓言便是:选择大而迟选项的蚂蚁比选择小而早选项的蚱蜢更可能扛过严冬而生存下来。为了探索何种跨期选择策略更有助于我们扛过疫情,本研究调查了亚非欧美大洋洲这5大洲18个国家共计26355名受测者对混合得失双结果的跨期选择偏爱,测量了人们平时和疫时跨期选择偏爱的变易程度(2类变易的程度指标),以及人们自评的扛疫成效。跨文化比较结果的主要发现是:不同通货的选择变易程度(指标1)和不同时期的选择变易程度(指标2)能联合预测中国/新加坡文化圈国民的自评扛疫成效;不同时期的选择变易程度(指标2)也可以单独预测印度/马来西亚/菲律宾/尼日利亚文化圈国民的自评扛疫成效;这2类选择偏爱变易的程度指标不能预测其他文化圈国民的自评扛疫成效(或者预测方向和假设相反)。基于易经“穷则变,变则通”的要旨和跨国比较的发现,我们认为:面临历史危机时善于变通的特长抑或成就了中华民族特有的竞争优势;在应对危机时,与中国文化距离越相近的国家或民族抑或也能...  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