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   880篇
  免费   53篇
  2023年   6篇
  2021年   7篇
  2020年   22篇
  2019年   24篇
  2018年   30篇
  2017年   18篇
  2016年   25篇
  2015年   20篇
  2014年   20篇
  2013年   101篇
  2012年   37篇
  2011年   40篇
  2010年   26篇
  2009年   31篇
  2008年   40篇
  2007年   33篇
  2006年   21篇
  2005年   25篇
  2004年   40篇
  2003年   31篇
  2002年   24篇
  2000年   12篇
  1999年   15篇
  1998年   11篇
  1997年   14篇
  1996年   10篇
  1995年   11篇
  1994年   9篇
  1993年   6篇
  1992年   6篇
  1991年   7篇
  1988年   6篇
  1987年   7篇
  1986年   7篇
  1985年   10篇
  1984年   11篇
  1983年   9篇
  1982年   12篇
  1981年   10篇
  1980年   10篇
  1979年   10篇
  1978年   14篇
  1977年   12篇
  1976年   9篇
  1975年   10篇
  1974年   15篇
  1973年   15篇
  1972年   5篇
  1970年   5篇
  1966年   5篇
排序方式: 共有933条查询结果,搜索用时 31 毫秒
861.
Predictors of multiple dimensions of spirituality/religiosity (S/R) and adolescents’ preferences for having S/R (e.g., prayer) addressed in hypothetical medical settings were assessed in a sample of urban adolescents with asthma. Of the 151 adolescents (mean age = 15.8, 60% female, 85% African-American), 81% said that they were religious and spiritual, 58% attended religious services in the past month, and 49% prayed daily. In multivariable models, African-American race/ethnicity and having a religious preference were associated with higher levels of S/R (R 2 = 0.07–0.25, P < .05). Adolescents’ preferences for including S/R in the medical setting increased with the severity of the clinical situation (P < .05).  相似文献   
862.
Much recent work on social cognition and empathy in philosophy of mind and cognitive science has been guided by the assumption that minds are composed of intracranial phenomena, perceptually inaccessible and thus unobservable to everyone but their owners. I challenge this claim. I defend the view that at least some mental states and processes??or at least some parts of some mental states and processes??are at times visible, capable of being directly perceived by others. I further argue that, despite its initial implausibility, this view receives robust support from several strands of empirical research.  相似文献   
863.
In face of the multiple controversies surrounding the DSM process in general and the development of DSM-5 in particular, we have organized a discussion around what we consider six essential questions in further work on the DSM. The six questions involve: 1) the nature of a mental disorder; 2) the definition of mental disorder; 3) the issue of whether, in the current state of psychiatric science, DSM-5 should assume a cautious, conservative posture or an assertive, transformative posture; 4) the role of pragmatic considerations in the construction of DSM-5; 5) the issue of utility of the DSM ?C whether DSM-III and IV have been designed more for clinicians or researchers, and how this conflict should be dealt with in the new manual; and 6) the possibility and advisability, given all the problems with DSM-III and IV, of designing a different diagnostic system. Part 1 of this article took up the first two questions. Part 2 took up the second two questions. Part 3 now deals with Questions 5 & 6. Question 5 confronts the issue of utility, whether the manual design of DSM-III and IV favors clinicians or researchers, and what that means for DSM-5. Our final question, Question 6, takes up a concluding issue, whether the acknowledged problems with the earlier DSMs warrants a significant overhaul of DSM-5 and future manuals. As in Parts 1 & 2 of this article, the general introduction, as well as the introductions and conclusions for the specific questions, are written by James Phillips, and the responses to commentaries are written by Allen Frances.  相似文献   
864.
In the conclusion to this multi-part article I first review the discussions carried out around the six essential questions in psychiatric diagnosis – the position taken by Allen Frances on each question, the commentaries on the respective question along with Frances’ responses to the commentaries, and my own view of the multiple discussions. In this review I emphasize that the core question is the first – what is the nature of psychiatric illness – and that in some manner all further questions follow from the first. Following this review I attempt to move the discussion forward, addressing the first question from the perspectives of natural kind analysis and complexity analysis. This reflection leads toward a view of psychiatric disorders – and future nosologies – as far more complex and uncertain than we have imagined.  相似文献   
865.
We evaluated whether resources mediate and/or moderate the relationship between altruism and health outcomes in adults with lumbar spine disorders. Hierarchical regression modeling on 243 persons with lumbar spine disorders evaluated gender differences and whether physical, emotional, and economic resources mediated or moderated the relationship between altruism (Schwartz Altruism) and health (Rand-36, PROMIS Pain Impact). Men and women had similar altruism subscale scores, but there were gender differences in the altruism-health relationships. Both men and women had better mental health with higher levels of Community Connection, after adjusting for Community Pressure, and this effect was mediated by emotional resources. Women evidenced better physical health and less pain impact when they endorsed higher levels of Community Connection and/or General Helping aspects of altruism. Physical and economic resources partially but did not fully mediate women??s altruism-physical health link. The altruism-pain impact link was not significant after adjusting for covariates. Men and women report similar levels of altruism but enjoy different benefits. Emotional resources explained the altruism-mental health link in both genders, but women experienced a physical health benefit of altruism that was not mediated by resources. Future research should test causal relationships.  相似文献   
866.
The present study used longitudinal data on 182 adults between the ages of 20 and 54 (104 men, 78 women) from the Rochester Adult Longitudinal Study (RALS), assessed on four occasions, to test the hypothesis that identity and intimacy during the course of early and middle adulthood predict well-being at midlife. A cross-lagged panel model was estimated yielding the following findings: (a) Scores on both scales during the college years predicted midlife satisfaction-intimacy directly, and identity through the course of development from ages 20 to 54; moreover, identity in midlife, but not intimacy, was significantly linked with well-being at this same point in time; and (b) identity and intimacy unexpectedly did not predict one another over time, having been controlled for factor stability in identity and intimacy over time. The findings are discussed in terms of Erikson's psychosocial theory of development and the developmental moments and historical cohorts that characterize the present sample.  相似文献   
867.
The Timeline Followback (TLFB) interview has been used extensively in the assessment of alcohol and other substance use. While this methodology has been validated in multiple formats for multiple behaviors, to date no systematic comparisons have been conducted between the traditional interview format and online versions. The present research employed a randomized within-subjects design to compare interview versus online-based TLFB assessments of alcohol and marijuana use among 102 college students. Participants were randomly assigned to receive either the online version first or the in-person interview format first. Participants subsequently completed the second format within 3 days. While we expected few overall differences between formats, we hypothesized that differences might emerge to the extent that participants are more comfortable and willing to answer honestly in an online format, which provides a degree of anonymity. Results were consistent with expectations in suggesting relatively few differences between the online version and the in-person version. Participants did report feeling more comfortable in completing the online version. Moreover, greater discomfort during the in-person assessment was associated with reporting more past-month marijuana use on the online assessment, but reported discomfort did not moderate differences between formats in reported alcohol consumption. (PsycINFO Database Record (c) 2012 APA, all rights reserved).  相似文献   
868.
The stress associated with providing care for a spouse diagnosed with Alzheimer's disease can have adverse effects on cardiovascular health. One potential explanation is that chronic caregiving stress may contribute to the development of atherosclerosis. The purpose of this study was to determine whether the duration that one has provided care is associated with the degree of atherosclerotic burden, as measured by carotid artery intima-media thickness (IMT). One hundred and ten Alzheimer caregivers [mean age 74?±?8 (SD) years, 69% female] underwent in-home assessment of carotid artery IMT via B-mode ultrasonography. Data regarding medical history, blood pressure, and multiple indicators of caregiving stress were also collected. Multiple regression indicated that duration of care was positively associated with IMT measured in the internal/bifurcation segments of the carotid artery (β?=?0.202, p?=?0.044) independent of risk factors such as age, gender, body mass index, smoking history, sleep quality, hypertension status, and caregiving stressors. Duration of care was positively associated with IMT in the common carotid artery, but the relationship was not significant. These findings provide more evidence of the link between chronic caregiving stress and cardiovascular disease and indicate that enduring the experience of caregiving over a period of years might be associated with atherosclerotic burden.  相似文献   
869.
There are gaps in our knowledge of the role cognitive factors play in determining people's willingness to participate (WTP) in therapeutic HIV vaccine trials. Using a cross-sectional study of HIV-positive injection drug users (IDU), we determined the role of three cognitive factors: HIV treatment optimism, self-efficacy beliefs, and knowledge of vaccine trial concepts in relation to WTP in a hypothetical phase 3 therapeutic HIV vaccine trial. WTP was 54%. Participants tended to be low in HIV treatment optimism (mean?=?3.9/10), high in self-efficacy (mean?=?79.8/100), and low in knowledge (mean?=?4.1/10). Items pertaining to HIV treatment optimism and knowledge of HIV vaccine trial concepts were generally unrelated to WTP. An increase in self-efficacy had a statistically significant positive association with WTP (OR?=?1.61, 95% CI?=?1.04-2.46, p?相似文献   
870.
Pharmaceutical companies fund the bulk of clinical research that is carried out on medications. Poor outcomes from these studies can have negative effects on sales of medicines. Previous research has shown that company funded research is much more likely to yield positive outcomes than research with any other sponsorship. The aim of this article is to investigate the possible ways in which bias can be introduced into research outcomes by drawing on concrete examples from the published literature. Poorer methodology in industry-funded research is not likely to account for the biases seen. Biases are introduced through a variety of measures including the choice of comparator agents, multiple publication of positive trials and non-publication of negative trials, reinterpreting data submitted to regulatory agencies, discordance between results and conclusions, conflict-of-interest leading to more positive conclusions, ghostwriting and the use of ??seeding?? trials. Thus far, efforts to contain bias have largely focused on more stringent rules regarding conflict-of-interest (COI) and clinical trial registries. There is no evidence that any measures that have been taken so far have stopped the biasing of clinical research and it??s not clear that they have even slowed down the process. Economic theory predicts that firms will try to bias the evidence base wherever its benefits exceed its costs. The examples given here confirm what theory predicts. What will be needed to curb and ultimately stop the bias that we have seen is a paradigm change in the way that we treat the relationship between pharmaceutical companies and the conduct and reporting of clinical trials.  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