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   2167篇
  免费   212篇
  国内免费   125篇
  2024年   10篇
  2023年   48篇
  2022年   28篇
  2021年   62篇
  2020年   117篇
  2019年   129篇
  2018年   117篇
  2017年   114篇
  2016年   103篇
  2015年   84篇
  2014年   116篇
  2013年   284篇
  2012年   58篇
  2011年   71篇
  2010年   60篇
  2009年   74篇
  2008年   88篇
  2007年   114篇
  2006年   106篇
  2005年   88篇
  2004年   73篇
  2003年   102篇
  2002年   79篇
  2001年   80篇
  2000年   46篇
  1999年   46篇
  1998年   24篇
  1997年   37篇
  1996年   16篇
  1995年   29篇
  1994年   14篇
  1993年   22篇
  1992年   4篇
  1991年   5篇
  1990年   4篇
  1989年   3篇
  1988年   2篇
  1987年   4篇
  1984年   7篇
  1983年   1篇
  1982年   3篇
  1981年   6篇
  1980年   4篇
  1979年   3篇
  1978年   6篇
  1977年   6篇
  1975年   5篇
  1974年   2篇
排序方式: 共有2504条查询结果,搜索用时 31 毫秒
161.
Adam Pryor 《Dialog》2018,57(1):5-11
Despite the awe and wonder that discoveries related to astrobiology inspire, the sheer volume and diversity of new discoveries related to space science can become overwhelming without meaningful frames of reference by which to organize our understanding of these phenomena. I suggest that a critical feature of the future of “astrotheology” relates to how it serves as an organizing correlate to astrobiology and space research. Considering that the prefix astro‐ has an amplicative and abductive effect on the fields of study to which it is applied, I contend that astrotheology implies a creative and constructive shift in how we conceptualize meaningful human being for theology that parallels how astrobiology effects a creative and constructive shift in how we conceptualize living systems.  相似文献   
162.
The aim of this analysis was to explore whether pre-treatment intervention preferences were related to outcomes for patients with persistent sub-threshold and mild depression who received one of two treatment types. Thirty-six patients took part in a two-arm, parallel group, pilot randomized controlled trial that compared short term (3 month and 6 month) outcomes of person-centred counselling (PCC) compared with low-intensity, CBT-based guided self-help (LICBT). Patient preferences for the two interventions were assessed at baseline assessment, and analysed as two independent linear variables (pro-PCC, pro-LICBT). Eight out of 30 interactions between baseline treatment preferences and treatment type were found to be significant at the p < .05 level. All were in the predicted direction, with patients who showed a stronger preference for a treatment achieving better outcomes in that treatment compared with the alternative. However, pro-LICBT was a stronger predictor of outcomes than pro-PCC. The findings provide preliminary support that treatment preferences should be taken into account when providing interventions for patients with persistent sub-threshold and mild depression. It is recommended that further research analyses preferences for different treatment types as independent variables, and examines preferences for format of treatment (e.g. guided self-help vs. face-to-face).  相似文献   
163.
The purpose of this research is to comprehend the reasons that arouse employee's psychological empowerment against organizational injustice. Based on this complex problematic, our approach is articulated around two central sectors. We proposed a conceptual framework of the researches related to organizational injustice and psychological empowerment for a better understanding of the mechanisms at work in their genesis. The qualitative exploratory investigation led in the mechanical and electric industrial sector in Tunisia underlined that a set of intra and extraorganizational determinants impact considerably the dynamic between injustice and psychological empowerment. The results clearly underline that contextual particularities are a catalyst of psychological empowerment.  相似文献   
164.
This paper aims to raise awareness of vicarious trauma amongst disaster researchers, and suggests ways to prevent vicarious traumatisation from happening and/or reaching incapacitating levels. The paper examines the potential of mindfulness practice, grounded in Buddhist meditation, as a set of contemplation tools through which optimal level of functionality can be maintained or restored. The relevance of the emphasis in mindfulness on understanding suffering, non-attachment, non-judgement, and full participation in the present moment are related to the context of disaster research. The paper demonstrates the potential for increased researcher resilience through acknowledgement and understanding of impermanence, as well as skilful observation of external and internal phenomena in trauma without forming attachment to the pain and suffering.  相似文献   
165.
Bioethicists invoke a duty to rescue in a wide range of cases. Indeed, arguably, there exists an entire medical paradigm whereby vast numbers of medical encounters are treated as rescue cases. The intuitive power of the rescue paradigm is considerable, but much of this power stems from the problematic way that rescue cases are conceptualized—namely, as random, unanticipated, unavoidable, interpersonal events for which context is irrelevant and beneficence is the paramount value. In this article, I critique the basic assumptions of the rescue paradigm, reframe the ethical landscape in which rescue obligations are understood, and defend the necessity and value of a wider social and institutional view. Along the way, I move back and forth between ethical theory and a concrete case where the duty to rescue has been problematically applied: the purported duty to regularly return incidental findings and individual research results in genomic and genetic research.  相似文献   
166.
This study explored differences between homeless male veterans in metropolitan and micropolitan cities in Nebraska on sociodemographic, housing, clinical, and psychosocial characteristics as well as health service use. A convenience sample of 151 homeless male veterans (112 metropolitan, 39 micropolitan) were recruited from Veterans Affairs facilities and area shelters in Omaha, Lincoln, Grand Island, and Hastings in Nebraska. Research staff conducted structured interviews with homeless veterans. Results showed that compared to homeless veterans in metropolitans, those in micropolitans were more likely to be White, unmarried, living in transitional settings, and were far more transient but reported greater social support and housing satisfaction. Veterans in micropolitans also reported more medical problems, diagnoses of anxiety and personality disorders, and unexpectedly, were more likely to report using various health services and less travel time for services. Together, these findings suggest access to homeless and health services for veterans in micropolitan areas may be facilitated through Veterans Affairs facilities and community providers that work in close proximity to one another. Many homeless veterans in these areas are transient, making them a difficult population to study and serve. Innovative ways to provide outreach to homeless veterans in micropolitan and more rural areas are needed.  相似文献   
167.
In this introduction to the special issue, we describe some of the rewards and challenges of community‐based arts initiatives for our discipline. We explore the inherent tensions between art and science that are reflected in community‐based arts activities. We pose larger questions about researching community‐based arts activities and defining the arts as a means of promoting social change. The diversity of populations, settings, and issues represented by the papers in the special issue are described and a common set of values, methods of inquiry and action are discussed.  相似文献   
168.
This study explored altruistic development as perceived by counselors‐in‐training from diverse cultures. Twenty‐two counselors‐in‐training from 4 countries participated in semistructured interviews about altruism. Using consensual qualitative research methodology, the authors identified 6 domains: biological, cognitive, social learning, religious/spiritual, counseling, and empathy. Findings and implications for counselor education are discussed.  相似文献   
169.
In this study, we discuss one example where behavior genetic findings vary greatly across political contexts. We present original findings on how party identification is heritable around the 2008 election on a sample of twins from Minnesota. As this is in contrast with findings from the late 1980s and with how a mid‐2000 study interpreted their results, we explain how the increasing partisan ideological polarization could be responsible for these seemingly contradictory findings. In the Minnesota sample, we show a genetic correlation between party identification and ideology, a finding consistent in the political science literature. We highlight how heritability of political characteristics, like all others, is population specific and highly context dependent stressing its nondeterministic nature.  相似文献   
170.
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