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   1692篇
  免费   122篇
  2024年   2篇
  2023年   28篇
  2022年   33篇
  2021年   35篇
  2020年   48篇
  2019年   61篇
  2018年   93篇
  2017年   87篇
  2016年   75篇
  2015年   65篇
  2014年   68篇
  2013年   200篇
  2012年   92篇
  2011年   111篇
  2010年   52篇
  2009年   66篇
  2008年   97篇
  2007年   95篇
  2006年   69篇
  2005年   63篇
  2004年   62篇
  2003年   52篇
  2002年   54篇
  2001年   18篇
  2000年   18篇
  1999年   18篇
  1998年   15篇
  1997年   11篇
  1996年   14篇
  1995年   12篇
  1994年   11篇
  1993年   5篇
  1992年   7篇
  1991年   3篇
  1990年   8篇
  1989年   4篇
  1988年   9篇
  1987年   4篇
  1986年   2篇
  1985年   5篇
  1983年   5篇
  1982年   7篇
  1981年   3篇
  1980年   6篇
  1979年   5篇
  1978年   5篇
  1977年   3篇
  1976年   2篇
  1964年   1篇
  1960年   1篇
排序方式: 共有1814条查询结果,搜索用时 15 毫秒
241.
Social engagement is associated with healthy aging and preserved cognition. Two dimensions of engagement, verbal interactions and perceived support, likely impact cognition via distinct mechanistic pathways. We explored the cognitive benefit of each construct among enrollees (N = 1,052, mean age = 60.2 years) in the Wisconsin Registry for Alzheimer’s Prevention study, who provide neuropsychological and sociobehavioral data at two-year intervals. Outcomes included six cognitive factor scores representing key domains of executive function and memory. Key predictors included self-reported perceived social support and weekly verbal interaction. Results indicated that after adjusting for lifestyle covariates, social support was positively associated with Speed and Flexibility and that verbal interactions were associated with Verbal Learning and Memory. These findings suggest that support, which may buffer stress, and verbal interaction, an accessible, aging-friendly form of environmental enrichment, are uniquely beneficial. Both are integral in the design of clinical and community interventions and programs that promote successful aging.  相似文献   
242.
Positive and negative mood are independent psychological responses to stressful events. Negative mood negatively impacts well-being and co-occurring positive mood leads to improved adjustment. Women undergoing core needle breast biopsies (CNB) experience distress during CNB and awaiting results; however, influences of mood are not well known. This longitudinal study examines psychosocial and biopsy- and spirituality-related factors associated with mood in patients day of CNB and one week after receiving results. Ninety women undergoing CNB completed questionnaires on psychosocial factors (chronic stress, social support), biopsy experiences (pain, radiologist communication), and spirituality (peace, meaning, faith) day of CNB. Measures of positive and negative mood were completed day of CNB and one week after receiving results (benign n = 50; abnormal n = 25). Multiple linear regression analyses were conducted. Greater positive mood correlated with greater peace (β = .25, p = .02) day of CNB. Lower negative mood correlated with greater peace (β = ?.29, p = .004) and there was a trend for a relationship with less pain during CNB (β = .19, p = .07). For patients with benign results, day of CNB positive mood predicted positive mood post-results (β = .31, p = .03) and only chronic stress predicted negative mood (β = .33, p = .03). For women with abnormal results, greater meaning day of CNB predicted lower negative mood post-results (β = ?.45, p = .03). Meaning and peace may be important for women undergoing CNB and receiving abnormal results.  相似文献   
243.
Monetary Contingency Contracts (MCCs) are schemes that ask individuals to pledge money that is returned contingent on behaviour change. In relation to weight loss, this study explored likely levels of engagement with MCCs, how much individuals would be willing to pay into an MCC, and how these amounts vary under different contract conditions. Fifty-six individuals with BMI above 25 who were motivated to lose weight were recruited. The majority of participants (87.5%) indicated that they would be willing to engage with weight loss MCCs, but showed more reluctance to subscribe to pair-based MCCs which offered; (a) refunds contingent on the weight loss of a weight loss partner, and (b) ‘all or nothing refunds’ in which no reward is given for any weight loss below the target weight loss goal. This study provides preliminary evidence that individuals motivated to lose weight may be willing to engage with weight loss MCCs. Further research is needed to explore reasons for reluctance to subscribe to MCCs with certain conditions, to inform the design of future experimental studies testing the efficacy of MCCs as part of an intervention for weight loss.  相似文献   
244.
Greater support is required in health promotion for practitioners to adopt critical approaches to their practice. Despite recognition of the role that critical reflection can play in supporting critical practice, it is underdeveloped in health promotion. This pilot study aimed to explore the use of critical reflection with health promotion practitioners. Critical postmodernism provided the theoretical perspective and critical reflection methodology guided the study. The data collection method involved the application of a critical reflection model via in-depth semi-structured interviews with two health promotion practitioners who were recruited using purposive sampling. Critical postmodernism and critical health promotion values and principles were the thematic frameworks used to analyse the data. Four types of assumptions were identified across both participants’ narratives: binary opposites and dichotomous thinking; identity and othering; professionalism; and power. Two key themes that evidenced these assumptions were conceptualising power as a commodity, and identity in the Aboriginal and Torres Strait Islander context. Both traditional and critical health promotion practice approaches were evident in participants’ practice. The process of engaging in critical reflection resulted in positive outcomes for the practitioners, including the identification of new, more critical ways of practising. Critical reflection provides a process for developing critical health promotion practice. The designation of critical reflection as a core health promotion competency may enhance the development of critical health promotion. Further research is needed to develop and test a critical reflection model incorporating the values and principles of health promotion with a larger sample of practitioners.  相似文献   
245.
Professional counselors must understand both psychological and neurological factors that impact human development across the life span. Despite an emerging body of literature about neurocounseling, little is known about how to integrate this information into supervision or the counseling curriculum. This article provides an overview of neuroscience topics applicable to professional counselors and recommendations for learning about neurocounseling.  相似文献   
246.
247.
An evolutionary perspective on human motivation provides a means of identifying conceptually distinct motivational systems (including motives pertaining to self‐protection, disease avoidance, affiliation, status, mate acquisition, mate retention, and parental care), each of which has unique implications for affect, cognition, and behavior. We provide an illustrative summary of some of these empirically documented implications—including those pertaining to individual differences in chronic motivational tendencies, as well as additional implications that follow from temporary activation of these motivational systems. We also summarize a variety of broader implications—both conceptual and practical—that follow from this framework.  相似文献   
248.
There are volumes of information available to process in visual scenes. Visual spatial attention is a critically important selection mechanism that prevents these volumes from overwhelming our visual system’s limited-capacity processing resources. We were interested in understanding the effect of the size of the attended area on visual perception. The prevailing model of attended-region size across cognition, perception, and neuroscience is the zoom-lens model. This model stipulates that the magnitude of perceptual processing enhancement is inversely related to the size of the attended region, such that a narrow attended-region facilitates greater perceptual enhancement than a wider region. Yet visual processing is subserved by two major visual pathways (magnocellular and parvocellular) that operate with a degree of independence in early visual processing and encode contrasting visual information. Historically, testing of the zoom-lens has used measures of spatial acuity ideally suited to parvocellular processing. This, therefore, raises questions about the generality of the zoom-lens model to different aspects of visual perception. We found that while a narrow attended-region facilitated spatial acuity and the perception of high spatial frequency targets, it had no impact on either temporal acuity or the perception of low spatial frequency targets. This pattern also held up when targets were not presented centrally. This supports the notion that visual attended-region size has dissociable effects on magnocellular versus parvocellular mediated visual processing.  相似文献   
249.
250.
We conducted a collaborative action research project with stakeholders in Detroit, Michigan, to develop long‐term policy strategies to resolve ~11,000 untested rape kits that were discovered in a police storage facility in August 2009. In our research, we uncovered overwhelming evidence of victim‐blaming behaviors and fundamental disrespect of rape survivors by the police, which directly contributed to their decisions not to submit kits for forensic testing. We had an ethical responsibility to report these negative findings accurately and completely, and in doing so, we were concerned that police stakeholders might disengage from the action research project and hamper our other ethical responsibilities to promote general and public welfare. In this article, we examine the ethical challenges of balancing accountability, collaboration, and social change.  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