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   382篇
  免费   10篇
  392篇
  2024年   3篇
  2023年   1篇
  2022年   2篇
  2021年   7篇
  2020年   9篇
  2019年   17篇
  2018年   21篇
  2017年   13篇
  2016年   14篇
  2015年   24篇
  2014年   14篇
  2013年   60篇
  2012年   27篇
  2011年   27篇
  2010年   16篇
  2009年   10篇
  2008年   26篇
  2007年   16篇
  2006年   12篇
  2005年   9篇
  2004年   7篇
  2003年   6篇
  2002年   13篇
  2001年   6篇
  2000年   3篇
  1999年   6篇
  1995年   1篇
  1994年   3篇
  1993年   1篇
  1992年   1篇
  1991年   4篇
  1983年   1篇
  1982年   1篇
  1979年   1篇
  1977年   2篇
  1976年   1篇
  1974年   2篇
  1973年   1篇
  1972年   1篇
  1968年   1篇
  1967年   1篇
  1963年   1篇
排序方式: 共有392条查询结果,搜索用时 0 毫秒
261.
Bariatric surgery is effective on short- and medium-term weight loss, reduction of comorbidities, and overall mortality. A large and increasing portion of the population is eligible for bariatric surgery, which increases instant health care costs. A review of the literature identifies a series of ethical challenges: unjust distribution of bariatric surgery, autonomy and informed consent, classification of obesity and selecting assessment endpoints, prejudice among health professionals, intervention in people's life-world, and medicalization of appearance. Bariatric surgery is particularly interesting because it uses surgical methods to modify healthy organs, is not curative, but offers symptoms relief for a condition that it is considered to result from lack of self-control and is subject to significant prejudice. Taking the reviewed ethical issues into account is important when meeting persons eligible for bariatric surgery, as well as in the assessment of and decision making on surgery for obesity.  相似文献   
262.
The main goal of the present research was to demonstrate the interaction between category and causal induction in causal model learning. We used a two-phase learning procedure in which learners were presented with learning input referring to two interconnected causal relations forming a causal chain (Experiment 1) or a common-cause model (Experiments 2a, b). One of the three events (i.e., the intermediate event of the chain, or the common cause) was presented as a set of uncategorized exemplars. Although participants were not provided with any feedback about category labels, they tended to induce categories in the first phase that maximized the predictability of their causes or effects. In the second causal learning phase, participants had the choice between transferring the newly learned categories from the first phase at the cost of suboptimal predictions, or they could induce a new set of optimally predictive categories for the second causal relation, but at the cost of proliferating different category schemes for the same set of events. It turned out that in all three experiments learners tended to transfer the categories entailed by the first causal relation to the second causal relation.  相似文献   
263.
264.
Non-patients attributing annoyance to either smells (smell annoyed; SA, n= 29) or electrical equipment (electrically annoyed; EA, n= 17), or both (generally annoyed; GA, n= 38), were monitored for 2 weeks through daily self-ratings of arousal (stress), sleep disturbances, health complaints, worry about hypersensitivity reactions, avoidance behaviors, and attributions of health complaints to electrical equipment and smells. In parallel, a demographically matched reference group was followed (n= 56). GA persons reported higher arousal (stress), more subjective health complaints, and more sleep disturbances than the other groups. About 60% in the GA and EA groups reported intentional avoidance behavior, compared to 31% in the SA group and 2% of the referents. Worry and attribution to environmental factors was also more frequent among GA persons than in the other groups. Thus, even at sub-clinical levels, environmental annoyance generalized to several triggers seems to be associated with behaviors commonly observed among patients with idiopathic environmental intolerance.  相似文献   
265.
266.
The purpose of this study was to identify preventive effects of the Incredible Years (IY) teacher classroom management (TCM) programme, which is employed in Norwegian kindergartens for 3-year-old to 6-year-old children. IY TCM is a universal preventive intervention intended to reduce the frequency of inappropriate types of behaviour and support children’s social- and emotional competence in kindergartens and schools. IY TCM was implemented in 46 kindergartens and compared to 46 matched kindergartens that did not receive the intervention. A total of 1049 children took part in the trial, 511 from the IY TCM group and 538 from the comparison group. Children’s behaviours were measured using well-validated instruments at the beginning and end of a school-year cycle, approximately 9 months later. Findings showed promising reductions in aggression, internalising and attention problems, and increases in social competence in the IY TCM kindergartens. In a sub-sample comprising children who scored equal to or above the 90th percentile on aggressive behaviour before the intervention, promising developments were found in social competence among the children in IY TCM kindergartens. The IY TCM lead to promising preventive effects in young children’s aggressive behaviours, internalisation, attention problems, and social competence in kindergartens in Norway. However, even if the changes were statistically significant, effect sizes were small. For children with severe behaviour problems, few positive results were found.  相似文献   
267.
While previous research examines how institutions matter for general life satisfaction and how specific institutions embodying equal rights for gay people matter for the life satisfaction of gays, we combine these two issues to analyze how the latter type of institutions relates to general life satisfaction. The question is how people in general are affected by laws treating everyone equally irrespective of sexual orientation. We find that legal recognition of partnership, marriage and adoption rights, as well as an equal age of consent, relate positively to general life satisfaction. Consequently, same-sex marriage and similar reforms come at no “welfare” cost to society at large—if anything, the opposite appears to hold. We further build on previous research showing positive effects of economic freedom on happiness and on tolerance towards gay people and interact our rights measure with economic freedom. This reveals that the positive effect on general happiness of equal rights mainly appears in countries with low economic freedom. This likely follows because minority rights are perceived to indicate openness to much-desired reforms in other areas.  相似文献   
268.
The Trail Making Test (TMT) is used in neuropsychological clinical practice to assess aspects of attention and executive function. The test consists of two parts (A and B) and requires drawing a trail between elements. Many patients are assessed with their non-dominant hand because of motor dysfunction that prevents them from using their dominant hand. Since drawing with the non-dominant hand is not an automatic task for many people, we explored the effect of hand use on TMT performance. The TMT was administered digitally in order to analyze new outcome measures in addition to total completion time. In a sample of 82 healthy participants, we found that non-dominant hand use increased completion times on the TMT B but not on the TMT A. The average completion time increased by almost 5 seconds, which may be clinically relevant. A substantial number of participants who performed the TMT with their non-dominant hand had a B/A ratio score of 2.5 or higher. In clinical practice, an abnormally high B/A ratio score may be falsely attributed to cognitive dysfunction. With our digitized pen data, we further explored the causes of the reduced TMT B performance by using new outcome measures, including individual element completion times and interelement variability. These measures indicated selective interference between non-dominant hand use and executive functions. Both non-dominant hand use and performance of the TMT B seem to draw on the same, limited higher-order cognitive resources.  相似文献   
269.
270.
    
In line with the “Work environment hypothesis,” role stressors have been proposed as important antecedents of bullying in the workplace. Only a few longitudinal studies on the relationship between role stressors and bullying exist, however, and earlier studies have largely been cross‐sectional. The aim of the present prospective study was to determine whether role stressors at baseline predict new cases of workplace bullying at follow‐up. A total of 2,835 Norwegian employees participated at both baseline and follow‐up, with an interval of two years between the measurements. The study supports the hypotheses that role ambiguity and role conflict, independently, contribute to subsequent new reports of workplace bullying. However, there was a weak reverse effect: reporting being bullied at work at baseline predicted reporting increased levels of role ambiguity and role conflict at follow‐up. Even though the results may indicate a circular relationship between the variables at hand, the weak reverse relationship seems to have little practical impact compared to the stronger relationship from role stressors to bullying. Hence, the results mainly support the hypotheses stating that role ambiguity and role conflict, independently, predict subsequent exposure to workplace bullying.  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