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   1206篇
  免费   12篇
  国内免费   3篇
  2023年   13篇
  2022年   32篇
  2021年   37篇
  2020年   46篇
  2019年   54篇
  2018年   104篇
  2017年   84篇
  2016年   90篇
  2015年   36篇
  2014年   38篇
  2013年   126篇
  2012年   40篇
  2011年   36篇
  2010年   40篇
  2009年   55篇
  2008年   52篇
  2007年   36篇
  2006年   27篇
  2005年   34篇
  2004年   13篇
  2003年   12篇
  2001年   13篇
  2000年   13篇
  1999年   4篇
  1998年   6篇
  1997年   7篇
  1995年   11篇
  1994年   5篇
  1993年   12篇
  1992年   7篇
  1991年   4篇
  1990年   5篇
  1988年   6篇
  1987年   8篇
  1986年   5篇
  1985年   7篇
  1984年   5篇
  1983年   5篇
  1982年   15篇
  1981年   11篇
  1980年   7篇
  1979年   8篇
  1978年   4篇
  1977年   8篇
  1976年   5篇
  1974年   5篇
  1973年   6篇
  1970年   3篇
  1969年   3篇
  1967年   3篇
排序方式: 共有1221条查询结果,搜索用时 15 毫秒
921.
Record numbers of unaccompanied refugee minors have been arriving in high-income countries since 2015. Child welfare agencies and non-governmental organisations tasked with providing services have struggled to cope with demands on their services as a result. Despite this, there is little research on how best to meet their needs and in particular what services can mitigate the psychological difficulties they face. As a result, the evidence base for social services for refugee children remains very limited. This paper is a systematic review and meta-analysis of the evidence on the relationship between care placement type and the educational, mental health and physical health outcomes of unaccompanied refugee minors. We searched ten databases and identified 3877 citations which were screened for inclusion. Nine studies were included in the final review, with seven included in the meta-analysis. Eight studies examined the link between accommodation type and mental health outcomes, and two analysed the relationship between accommodation type and education. There were no studies looking at physical health outcomes. Included studies suggest that foster care and placements that are culturally sensitive may be associated with better mental health outcomes. This review highlights the paucity of research on the impact of services provided by child welfare agencies and non-governmental organisations.  相似文献   
922.
This paper provides a systematic literature review, analysis and discussion of methods that are proposed to practise ethics in research and innovation (R&I). Ethical considerations concerning the impacts of R&I are increasingly important, due to the quickening pace of technological innovation and the ubiquitous use of the outcomes of R&I processes in society. For this reason, several methods for practising ethics have been developed in different fields of R&I. The paper first of all presents a systematic search of academic sources that present and discuss such methods. Secondly, it provides a categorisation of these methods according to three main kinds: (1) ex ante methods, dealing with emerging technologies, (2) intra methods, dealing with technology design, and (3) ex post methods, dealing with ethical analysis of existing technologies. Thirdly, it discusses the methods by considering problems in the way they deal with the uncertainty of technological change, ethical technology design, the identification, analysis and resolving of ethical impacts of technologies and stakeholder participation. The results and discussion of our literature review are valuable for gaining an overview of the state of the art and serve as an outline of a future research agenda of methods for practising ethics in R&I.  相似文献   
923.
Heart disease is the leading cause of death in the United States. Given that cardiovascular rehabilitation (CR) participation is the best secondary prevention of cardiac mortality, it is important to understand the challenges and motivations people experience while taking part in rehabilitation. The present qualitative study explored the treatment experiences of 20 women and 20 men at urban and rural rehabilitation clinics in Minnesota. Participants were equally divided based on the number of CR session completed (less than or equal to 18 vs. more than 18). The study’s primary aim was to articulate similarities and differences in the CR treatment experiences by gender. Data were gathered from individual interviews and analyzed using an inductive content analysis. Findings revealed that both women and men view CR as a means to move forward from their cardiac incident and achieve good health. Women were more likely than were men to be motivated by a perceived obligation to CR staff and improved quality of life. Men, in comparison, identified their commitment to CR as a need to complete a task. The study findings can help inform the design of rehabilitation programs and strengthen patient-centered interventions to enhance participation in treatment.  相似文献   
924.
Remembering an event typically takes less time than experiencing it, suggesting that episodic memory represents past experience in a temporally compressed way. Little is known, however, about how the continuous flow of real-life events is summarised in memory. Here we investigated the nature and determinants of temporal compression by directly comparing memory contents with the objective timing of events as measured by a wearable camera. We found that episodic memories consist of a succession of moments of prior experience that represent events with varying compression rates, such that the density of retrieved information is modulated by goal processing and perceptual changes. Furthermore, the results showed that temporal compression rates remain relatively stable over one week and increase after a one-month delay, particularly for goal-related events. These data shed new light on temporal compression in episodic memory and suggest that compression rates are adaptively modulated to maintain current goal-relevant information.  相似文献   
925.
There is now a growing body of research demonstrating the physical health benefits of being grateful. However, research has only just began to explore the mechanisms accounting for this gratitude-health relationship. This study examines the relationship between dispositional gratitude and self-reported physical health symptoms, and explores whether this relationship is explained through reduced levels of perceived loneliness and stress. This study employed a cross-sectional design with a sample of 607 healthy adults. Serial mediation analysis revealed that the positive effect of gratitude on physical health was significantly mediated by lower reported levels of perceived loneliness and stress. These findings are important given evidence that gratitude can be cultivated, and may serve to buffer against stress and loneliness and improve somatic health symptoms in the general population.  相似文献   
926.
927.
928.
It is the ambition of natural science to provide complete explanations of reality. Collingwood argues that science can only explain events, not actions. The latter is the distinctive subject matter of history and can be described as actions only if they are explained historically. This paper explains Collingwood’s claim that the distinctive subject matter of history is actions and why the attempt to capture this subject matter through the method of science inevitably ends in failure because science explains events, not actions. It argues that Collingwood’s defence of the methodological autonomy of history vis-à-vis natural science is not based on a commitment to human exceptionalism, i.e. the exclusion of human beings and their doings from the rest of nature, but on the view that explanations which appeal to norms are different in kind from explanations which appeal to empirical regularities. Given the close relationship between the method and the subject matter of a form of inquiry, actions elude any attempt to explain them through the scientific method because the application of this method entails that what is thus explained is not an action but an event.  相似文献   
929.
If the imago Dei is not a taxonomic definition but rather something that is performed in context, what are the implications for questions of human enhancement and the development of artificial intelligence (AI)? The author considers Alistair McFadyen’s performative vision of the imago Dei, one that actively seeks humanity in concrete situations, in the context of human enhancement and AI, asking the questions, ‘Does becoming cyborg through human enhancement make us less bearers of the divine image?’ And, ‘Can AI ever be considered to be in the image of God?’ Briefly tracing the shift in perspectives on the imago Dei, before considering what a performance of the image might look like, the author proposes three performances that have significant implications for questions about what it means to be human. To be an image-bearer is not dependent upon human DNA or species membership, but on an optative performance of the imago Dei.  相似文献   
930.
We infer the thoughts and feelings of others by taking their perspectives. Similar processes could be used to understand how we will be affected by future events, by allowing us to take the perspective of our future self. In this paper, we test this idea using a previously presented framework for guiding predictions. The framework proposes that a shared neural mechanism is involved in controlling egocentric bias, both while shifting our perspective away from self and towards others, and while shifting our perspective from immediate to future perspectives. To test this framework, 36 adults performed an intertemporal choice task. They were then scanned using 3T functional magnetic resonance imaging while completing a false-belief “localizer” task, which requires egocentric bias control. A positive correlation was observed between the right temporoparietal junction (rTPJ) response during the false-belief task, and preferences for delayed rewards in intertemporal choices. A subset of participants performed the intertemporal choice task again in the scanner, which revealed that the response of the same rTPJ cluster, individually localized during the false-belief task, was higher during delayed over immediate reward choices. In addition, functional connectivity between the rTPJ and ventromedial prefrontal cortex was found to differ between immediate and delayed choices. The current results indicate an overlap in processes of egocentric bias control and those that determine preferences in intertemporal choices, offering a social cognitive explanation for why rewards are devalued with delay in temporal discounting.  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