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   1803篇
  免费   82篇
  2023年   8篇
  2021年   13篇
  2020年   28篇
  2019年   37篇
  2018年   31篇
  2017年   41篇
  2016年   66篇
  2015年   38篇
  2014年   38篇
  2013年   234篇
  2012年   76篇
  2011年   80篇
  2010年   50篇
  2009年   53篇
  2008年   53篇
  2007年   85篇
  2006年   67篇
  2005年   69篇
  2004年   68篇
  2003年   65篇
  2002年   65篇
  2001年   24篇
  2000年   31篇
  1999年   32篇
  1998年   27篇
  1997年   28篇
  1996年   31篇
  1995年   41篇
  1994年   31篇
  1993年   24篇
  1992年   23篇
  1991年   17篇
  1990年   22篇
  1989年   15篇
  1988年   10篇
  1987年   14篇
  1986年   13篇
  1985年   12篇
  1984年   16篇
  1983年   22篇
  1982年   31篇
  1981年   16篇
  1980年   21篇
  1979年   13篇
  1978年   16篇
  1977年   14篇
  1976年   11篇
  1975年   14篇
  1974年   15篇
  1973年   8篇
排序方式: 共有1885条查询结果,搜索用时 15 毫秒
191.
Smoking in many Western societies has become a both moral aand health issue in recent years, but little is known about how smokers position themselves and regulate their behaviour in this context. In this article, we report the findings from a study investigating how smokers from an economically disadvantaged community in the East Midlands (UK) respond to concerns about the health impact of smoking on others. We conducted ten focus group (FG) discussions with mixed groups (by smoking status and gender; N?=?58 participants) covering a range of topics, including smoking norms, self-regulation, and smoking in diverse contexts. We transcribed all FG discussions before analysing the data using techniques from discourse anlysis. Smokers in general positioned themselves as socially responsible smokers and morally upstanding citizens. This position was bolstered in two main ways: ‘everyday accommodation’, whereby everyday efforts to accommodate the needs of non-smokers were referenced, and ‘taking a stand’, whereby proactive interventions to prevent smoking in (young) others were cited. We suggest that smoking cessation campaigns could usefully be informed by this ethic of care for others.  相似文献   
192.
193.
There has been great interest in using working memory (WM) training regimens as an alternative treatment for ADHD, but it has recently been concluded that existing training regimens may not be optimally designed because they target the primary memory component but not the secondary component of WM capacity. This conclusion requires the ability to accurately measure changes in primary and secondary memory abilities over time. The immediate free recall task has been used in previous studies to measure these changes; however, one concern with these tasks is that the recall order required on training exercises may influence the recall strategy used during free recall, which may in turn influence the relative number of items recalled from primary and secondary memory. To address this issue, previous training studies have explicitly controlled recall strategy before and after training. However, the necessity of controlling for recall strategies has not been explicitly tested. The present study investigated the effects of forward-serial-order training on free recall performance under conditions in which recall strategy was not controlled using a sample of adolescents with ADHD. Unlike when recall order was controlled, the main findings showed selective improvement of the secondary memory component (as opposed to the primary memory component) when recall order was uncontrolled. This finding advances our understanding of WM training by highlighting the importance of controlling for recall strategies when free recall tasks are used to measure changes in the primary and secondary components of WM across time.  相似文献   
194.
ObjectiveTrauma-focused psychological treatments are recommended as first-line treatments for Posttraumatic Stress Disorder (PTSD), but clinicians may be concerned that the good outcomes observed in randomized controlled trials (RCTs) may not generalize to the wide range of traumas and presentations seen in clinical practice. This study investigated whether Cognitive Therapy for PTSD (CT-PTSD) can be effectively implemented into a UK National Health Service Outpatient Clinic serving a defined ethnically mixed urban catchment area.MethodA consecutive sample of 330 patients with PTSD (age 17–83) following a wide range of traumas were treated by 34 therapists, who received training and supervision in CT-PTSD. Pre and post treatment data (PTSD symptoms, anxiety, depression) were collected for all patients, including dropouts. Hierarchical linear modeling investigated candidate moderators of outcome and therapist effects.ResultsCT-PTSD was well tolerated and led to very large improvement in PTSD symptoms, depression and anxiety. The majority of patients showed reliable improvement/clinically significant change: intent-to-treat: 78.8%/57.3%; completer: 84.5%/65.1%. Dropouts and unreliable attenders had worse outcome. Statistically reliable symptom exacerbation with treatment was observed in only 1.2% of patients. Treatment gains were maintained during follow-up (M = 280 days, n = 220). Few of the selection criteria used in some RCTs, demographic, diagnostic and trauma characteristics moderated treatment outcome, and only social problems and needing treatment for multiple traumas showed unique moderation effects. There were no random effects of therapist on symptom improvement, but therapists who were inexperienced in CT-PTSD had more dropouts than those with greater experience.ConclusionsThe results support the effectiveness of CT-PTSD and suggest that trauma-focused cognitive behavior therapy can be successfully implemented in routine clinical services treating patients with a wide range of traumas.  相似文献   
195.
Previous studies have demonstrated that animals use multiple strategies to solve spatial tasks. We used a T-maze to examine spatial behavior in crayfish, using visual and tactile stimuli as place cues and a food-scented escape tank as reinforcement to leave the maze. In trials on a single day and across multiple days, crayfish learned to exit the maze with significantly reduced latency and with fewer turns. In addition, we examined place memory in 40-min periods with the maze closed and found that crayfish spent longer in the vicinity of a previously open exit compared to a closed exit. Probe tests were conducted using a forced-choice procedure to determine whether crayfish remembered the route out of the maze using primarily place cues or response learning. We found that approximately equal numbers of animals used each strategy, and individuals were able to switch from one strategy to the other on different test days. Males and females did not differ significantly in their performance in the place memory test, maze exit task, or probe tests. Both sexes displayed place memory for the exit location and reduced latency to exit during trials 24 h, 48 h, 72 h, and 1 week after initial training trials, suggesting that spatial memories in crayfish are relatively enduring.  相似文献   
196.
197.
The present article pursues striking similarities between the discourse of philosophies and practices often categorised as ‘New Age’, and that of restorative justice. By bringing observations from data material produced in seemingly very different fields of research to a close encounter, a common discourse of transformation is tentatively explored, adding to contemporary works that warn against assuming ‘New Age’ as a sui generis movement or milieu. The article is an exercise in tracing connections across different fields of study, lending support to the claim that such tracing may contribute to the opening out of our topic in ways that have implications for what we can understand as constituting a social environment, for what we can understand as constituting context, for what we can understand as constituting ‘New Age’.  相似文献   
198.
This paper focuses on the hopes that Somalis who came to Melbourne as refugees have for their children’s education. It analyses their perceptions of the Somali and Australian education systems and the implications of these for their family’s ability to adapt and cope with Australian life. In doing so, it also shows how they use education to reconstruct their world as part of resettlement in Australia. This paper argues that specific programmes and activities that bring parents and teachers together around their child’s education can build bridging social capital, contributes to optimism about the future and sets the stage for positive agency at a time when Somali families are coping with trauma, loss and disconnection in an unfamiliar society.  相似文献   
199.
When asked to remember who contributed what to the completion of shared, goal-directed activities, children exhibit a bias to over-attribute contributions to themselves, recoding partners' actions as their own. The goals of the 3 experiments reported here were to explore task characteristics that might influence these recoding processes, and as a result, reveal more about them. The timing of the child's contributions in relation to the partner's actions was found to be crucial for recoding (Experiments 1 and 3). The availability of a model outcome affects recoding as well (Experiment 2), but appears not to be a prerequisite. In the absence of a physical outcome, recoding is still observed (Experiment 3). Anticipation of the partner's actions appears to account for all of these effects. Findings have implications for understanding children's source monitoring abilities as well as for understanding internalization processes thought to support collaborative learning.  相似文献   
200.
Recently, studies have demonstrated that negative valence reduces the magnitude of the belief-bias effect in syllogistic reasoning. This effect has been localized in the reasoning stage, in the form of increased deliberation on trials where validity and conclusion believability are incongruent. Here, using signal detection theory, we show that the attenuation of belief bias observed when valence was negative can also be evoked by a liberal response bias at the decision stage. Indeed, when valence was negative participants adopted a more liberal criterion for judging syllogisms as “valid,” and were overconfident in their judgments. They also displayed less sensitivity in distinguishing between valid and invalid syllogisms. Our findings dovetail with recent evidence from memory research suggesting that negative valence can evoke a liberal response bias without improving performance. Our novel contribution is the demonstration that the attenuating effect of negative valence on belief bias can take multiples routes—by influencing the decision stage as was the case here, the reasoning stage as has been demonstrated elsewhere, and potentially both stages.  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