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   1419篇
  免费   83篇
  国内免费   1篇
  2023年   10篇
  2022年   8篇
  2021年   13篇
  2020年   25篇
  2019年   38篇
  2018年   38篇
  2017年   55篇
  2016年   54篇
  2015年   36篇
  2014年   38篇
  2013年   133篇
  2012年   59篇
  2011年   65篇
  2010年   55篇
  2009年   41篇
  2008年   49篇
  2007年   46篇
  2006年   65篇
  2005年   54篇
  2004年   40篇
  2003年   43篇
  2002年   43篇
  2001年   20篇
  2000年   27篇
  1999年   22篇
  1998年   27篇
  1997年   25篇
  1996年   25篇
  1995年   16篇
  1994年   13篇
  1993年   14篇
  1992年   15篇
  1990年   11篇
  1989年   10篇
  1988年   13篇
  1987年   15篇
  1986年   13篇
  1985年   13篇
  1984年   25篇
  1983年   15篇
  1982年   16篇
  1981年   16篇
  1980年   15篇
  1979年   21篇
  1978年   14篇
  1977年   14篇
  1976年   10篇
  1975年   12篇
  1974年   13篇
  1973年   7篇
排序方式: 共有1503条查询结果,搜索用时 15 毫秒
941.
Although many physicians have been using the internet for both clinical and social purposes for years, recently concerns have been raised regarding blurred boundaries of the profession as a whole. In both the news media and medical literature, physicians have noted there are unanswered questions in these areas, and that professional self-regulation is needed. This report discusses the ethical implications of physicians' nonclinical use of the internet, including the use of social networking sites, blogs, and other means to post content online. It does not address the clinical use of the internet, such as telemedicine, e-prescribing, online clinical consultations, health-related websites, use of electronic media for clinical collaboration, and e-mailing patients (some of which are already covered in the AMA's Code of Medical Ethics).  相似文献   
942.
BRCA+ breast cancer patients face high risk for a second breast cancer and ovarian cancer. Helping these women decide among risk-reducing options requires effectively conveying complex, emotionally-laden, information. To support their decision-making needs, we developed a web-based decision aid (DA) as an adjunct to genetic counseling. Phase 1 used focus groups to determine decision-making needs. These findings and the Ottawa Decision Support Framework guided the DA development. Phase 2 involved nine focus groups of four stakeholder types (BRCA+ breast cancer patients, breast cancer advocates, and genetics and oncology professionals) to evaluate the DA's decision-making utility, information content, visual display, and implementation. Overall, feedback was very favorable about the DA, especially a values and preferences ranking-exercise and an output page displaying personalized responses. Stakeholders were divided as to whether the DA should be offered at-home versus only in a clinical setting. This well-received DA will be further tested to determine accessibility and effectiveness.  相似文献   
943.
Psychology training programs have a responsibility to train multiculturally competent psychologists. Predoctoral interns were surveyed to compare the multicultural environment of academic and internship programs. Internship programs were perceived as more multicultural than were academic programs. Factors contributing to differences are examined, and suggestions are made for improving multicultural environments in training. Los programas de formación en psicología tienen la responsabilidad de formar psicólogos competentes multiculturalmente. Se entrevistó a interinos predoctorales para comparar el ambiente multicultural de sus programas académicos y de interinidad. Se percibió que los programas de interinidad eran más multiculturales que los programas académicos. Se examinan los factores que contribuyen a estas diferencias, y se ofrecen sugerencias para mejorar los ambientes multiculturales en la formación.  相似文献   
944.
945.
This article outlines the U.S. Army's effort to empirically validate and assess the Comprehensive Soldier Fitness (CSF) program. The empirical assessment includes four major components. First, the CSF scientific staff is currently conducting a longitudinal study to determine if the Master Resilience Training program and the Comprehensive Resilience Modules lead to lasting resilience development in soldiers. Second, the CSF program has partnered with other researchers to conduct a series of longitudinal studies examining the link between physiological, neurobiological, and psychological resilience factors. Third, the CSF program is also incorporating institutional-level data to determine if its material influences health, behavioral, and career outcomes. Fourth, group randomized trials are being conducted to ensure that resilience training incorporated under the CSF program is effective with soldiers. A specific rationale and methodologies are discussed.  相似文献   
946.
The purpose of the current study was to examine the relative contributions of weight status, race/ethnicity, sex, and age on body dissatisfaction in a large group of diverse children. Participants were 4th–6th graders (N = 1212) in ten inner-city schools who participated in an obesity prevention study previously published. Children completed the body dissatisfaction subscale of the Eating Disorder Inventory-2 (EDI-2), and weight status was assessed by measured weights and heights. Multiple regression analyses were conducted. Relative weight status was the strongest predictor of body dissatisfaction, followed by race/ethnicity, and sex. Body dissatisfaction was greatest in obese, Asian, and female children. Overall, results indicated that children's body dissatisfaction varies based on relative weight status, as well as race/ethnicity and sex among urban children. Results highlight the strong need for additional research so that more definitive conclusions may be drawn regarding the development of body image among diverse groups of children.  相似文献   
947.
Drawing on Conservation of Resources Theory and previous research on work engagement, the present study investigates gain spirals between employees' engagement and their task, social, and personal resources. It focuses on the key resources of job control, positive work relationships, and active coping behavior. In a three-wave design, work engagement (T2) is suggested to function both as an outcome and antecedent of these resources, so that engagement mediates indirect longitudinal effects of initial (T1) on subsequent (T3) resources. Item-level structural equation modeling supported our hypotheses in a three-wave panel (N = 416) of hospital physicians with measurement intervals of 14 and 19 months. Connections between engagement research and other evolving perspectives in organizational research are highlighted. Unique contributions of the present study and their implications for further research and practice are discussed.  相似文献   
948.
Feminist philosophy of science has led to improvements in the practices and products of scientific knowledge-making, and in this way it exemplifies socially relevant philosophy of science. It has also yielded important insights and original research questions for philosophy. Feminist scholarship on science thus presents a worthy thought-model for considering how we might build a more socially relevant philosophy of science—the question posed by the editors of this special issue. In this analysis of the history, contributions, and challenges faced by feminist philosophy of science, I argue that engaged case study work and interdisciplinarity have been central to the success of feminist philosophy of science in producing socially relevant scholarship, and that its future lies in the continued development of robust and dynamic philosophical frameworks for modeling social values in science. Feminist philosophers of science, however, have often encountered marginalization and persistent misunderstandings, challenges that must be addressed within the institutional and intellectual culture of American philosophy.  相似文献   
949.
We probed simultaneous French–Spanish bilinguals for the perception of Spanish lexical stress using three tasks, two short-term memory encoding tasks and a speeded lexical decision. In all three tasks, the performance of the group of simultaneous bilinguals was intermediate between that of native speakers of Spanish on the one hand and French late learners of Spanish on the other hand. Using a composite stress ‘deafness’ index measure computed over the results of the three tasks, we found that the performance of the simultaneous bilinguals is best fitted by a bimodal distribution that corresponds to a mixture of the performance distributions of the two control groups. Correlation analyses showed that the variables explaining language dominance are linked to early language exposure. These findings are discussed in light of theories of language processing in bilinguals.  相似文献   
950.
Harman and Lewis credit Kripke with having formulated a puzzle that seems to show that knowledge entails dogmatism. The puzzle is widely regarded as having been solved. In this paper we argue that this standard solution, in its various versions, addresses only a limited aspect of the puzzle and holds no promise of fully resolving it. Analyzing this failure and the proper rendering of the puzzle, it is suggested that it poses a significant challenge for the defense of epistemic closure.  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