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   670篇
  免费   50篇
  国内免费   1篇
  721篇
  2023年   4篇
  2021年   14篇
  2020年   21篇
  2019年   28篇
  2018年   36篇
  2017年   30篇
  2016年   26篇
  2015年   26篇
  2014年   30篇
  2013年   73篇
  2012年   32篇
  2011年   34篇
  2010年   38篇
  2009年   39篇
  2008年   31篇
  2007年   23篇
  2006年   20篇
  2005年   19篇
  2004年   16篇
  2003年   14篇
  2002年   14篇
  2001年   7篇
  2000年   8篇
  1999年   8篇
  1998年   5篇
  1997年   4篇
  1996年   4篇
  1995年   3篇
  1994年   6篇
  1993年   5篇
  1992年   4篇
  1991年   6篇
  1990年   5篇
  1989年   4篇
  1987年   4篇
  1986年   5篇
  1985年   4篇
  1983年   6篇
  1982年   4篇
  1981年   6篇
  1980年   6篇
  1978年   4篇
  1977年   4篇
  1975年   3篇
  1974年   5篇
  1973年   3篇
  1971年   2篇
  1969年   2篇
  1967年   2篇
  1964年   3篇
排序方式: 共有721条查询结果,搜索用时 0 毫秒
111.
Music has the potential to evoke strong emotions and plays a significant role in the lives of many people. Music might therefore be an ideal medium to assess emotion recognition. We investigated emotion recognition in music in 20 patients with idiopathic Parkinson’s disease (PD) and 20 matched healthy volunteers. The role of cognitive dysfunction and other disease characteristics in emotion recognition was also evaluated.  相似文献   
112.
溶栓后PCI,从不行到可行   总被引:1,自引:1,他引:0  
再灌注治疗STEMI的方法有直接PCI和溶栓。我国各地医疗条件差别较大,只有12%的STEMI患者能够及时接受直接PCI,超过半数的患者仍行溶栓治疗,故溶栓在我国再灌注策略中占有重要地位。虽然溶栓后即刻PCI即易化PCI被证实不如直接PCI,但溶栓并非STEMI治疗的终点。目前国外循证证据显示溶栓后早期转运PCI优于溶栓失败后再转运行补救PCI,值得我国借鉴学习。  相似文献   
113.
We combined a feedback-based learning task with a recognition memory paradigm to investigate how reward-based learning affects the event-related potential (ERP) correlates of recognition memory in younger and older adults. We found that positive, but not negative learning improves memory and results in an increased early ERP old–new effect, which is typically associated with familiarity-based memory. This indicates that reward-based learning supports a fast and relatively automatic memory retrieval process. Furthermore, we found age-related impairments in reward-based learning, whereas memory for the learned information was intact in the elderly, suggesting that declarative memory might be less affected by aging.  相似文献   
114.
This study aims at a better understanding of concrete violence phenomena and their implication, particularly in matters of men's and women's health and quality of life. Our study was carried out in Tunisia with a sample population of 720 male and female adults from different age groups and various socio-economic contexts. Diverse forms of violence (physical, psychological, and sexual) undergone during different phases of life (childhood, adolescence, and adulthood) were measured in a bid to investigate their linkage with the quality of the population's personal life. The results tend to corroborate that the violence one undergoes at a specific moment in one's life affects the quality of one's personal life. It is more particularly women who are the ones most affected and the quality of their personal lives is of a poor quality in comparison with men's.  相似文献   
115.
The structuring of our environment to provide cues and reminders for ourselves is common: We leave notes on the fridge, we have a particular place for our keys where we deposit them, making them easy to find. We alter our world to streamline our cognitive tasks. But how did hominins gain this capacity? What pushed our ancestors to structure their physical environment in ways that buffered thinking and began the process of using the world cognitively? I argue that the capacity to engage in these behaviours is a by-product of increased tool investment and tool curation, which in turn was necessary because of increasingly heterogeneous environments. The minute tools are carried and cared for, they begin to undergo selection for added functions, becoming available as cognitive primers and as signals. I explore the trajectory of this co-evolutionary feedback loop of hominins and their tools, and demonstrate the role tools have in shaping our thinking.  相似文献   
116.
The predictive validity of symptom criteria for different subtypes of ADHD among children who were impaired in at least one setting in early childhood was examined. Academic achievement was assessed seven times over 8 years in 125 children who met symptom criteria for ADHD at 4–6 years of age and in 130 demographically-matched non-referred comparison children. When intelligence and other confounds were controlled, children who met modified criteria for the predominantly inattentive subtype of ADHD in wave 1 had lower reading, spelling, and mathematics scores over time than both comparison children and children who met modified criteria for the other subtypes of ADHD. In some analyses, children who met modified criteria for the combined type had somewhat lower mathematics scores than comparison children. The robust academic deficits relative to intelligence in the inattentive group in this age range suggest either that inattention results in academic underachievement or that some children in the inattentive group have learning disabilities that cause secondary symptoms of inattention. Unexpectedly, wave 1 internalizing (anxiety and depression) symptoms independently predicted deficits in academic achievement controlling ADHD, intelligence, and other predictors.  相似文献   
117.
To estimate the prevalence of being well-adjusted in adolescence, boys and girls with (n = 96) and without (n = 126) attention-deficit/hyperactivity disorder (ADHD) were assessed seven times in eight years starting when they were 4–6 years of age. Symptoms of ADHD, ODD/CD, and depression/anxiety in addition to social skills and social preference were gathered using multiple methods and informants. Being well-adjusted was defined by surpassing thresholds in at least four of the five domains. At the 7- and 8-year follow-up, when youth were 11–14 years old, probands were significantly less likely to be well-adjusted relative to age- and ethnicity-matched control children. Only a minority of children with ADHD was well-adjusted in adolescence when emotional, behavioral, and social domains were considered simultaneously. Even when their ADHD symptoms improved over time, most probands exhibited significant impairment 7–8 years after their initial assessment.  相似文献   
118.
Recent studies suggest that most of what parents know about their adolescent offspring's whereabouts and companions is the result of youth disclosure, rather than information gained through active parental monitoring. This raises the possibility that parental knowledge is spuriously correlated with youth delinquency solely because the most delinquent youth disclose the least information to parents (because they have the most to hide). We tested this spurious association hypothesis using prospective data on offspring of a nationally representative sample of US women, controlling demographic and contextual covariates. In separate analyses, greater parental knowledge of their offspring's peer associations at both 12-13 years and at 14-15 years was associated with lower odds of being in the top 1 standard deviation of youth-reported delinquency at 16-17 years, controlling for delinquency at the earlier ages. The extent to which parents set limits on activities with peers at 14-15 years did not mediate or moderate the association between parental knowledge and delinquency, but it did independently predict future delinquency among adolescents living in high-risk neighborhoods. This suggests that the association between parental knowledge and future delinquency is not solely spurious; rather parental knowledge and limit setting are both meaningful predictors of future delinquency.  相似文献   
119.
Firms allocate considerable resources to test job applicants' skills and to ensure that hiring decisions are nondiscriminatory. Interpreting selection output in light of preliminary information may undermine the impartiality of personnel selection decisions. In this study, human resource managers were presented preliminary information about a candidate's performance and asked to rate him according to a detailed assessment‐center report of his performance. We examined several interventions for reducing reliance on preliminary information: retrieving assessment‐center information, generating a rating model, or both. Participants (N = 167) excluded preliminary information from the interventions, but relied on it when rating the candidate. The documented failure to control for the effects of preliminary information on subsequent judgments can contribute to improved selection procedures.  相似文献   
120.
Unproctored Internet testing in employee selection has become increasingly popular over the past few years. However, there is a concern that cheating during unproctored administrations may influence the test results in terms of score inflation. The current research attempts to determine the extent of cheating on an unproctored Internet test of perceptual speed by analyzing data from a parallel version of the test administered in a proctored setting. Among a sample of 856 job applicants from nine European countries, there was no evidence that cheating occurred. In fact, evidence of an effect operating in the opposite direction was obtained. These results indicate that the use of unproctored Internet testing is appropriate for this type of test.  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