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   1974篇
  免费   164篇
耳鼻咽喉   9篇
儿科学   77篇
妇产科学   49篇
基础医学   195篇
口腔科学   20篇
临床医学   191篇
内科学   459篇
皮肤病学   10篇
神经病学   219篇
特种医学   85篇
外科学   161篇
综合类   28篇
一般理论   117篇
预防医学   267篇
眼科学   52篇
药学   106篇
肿瘤学   93篇
  2023年   16篇
  2022年   29篇
  2021年   41篇
  2020年   18篇
  2019年   33篇
  2018年   37篇
  2017年   36篇
  2016年   26篇
  2015年   29篇
  2014年   37篇
  2013年   57篇
  2012年   71篇
  2011年   98篇
  2010年   59篇
  2009年   53篇
  2008年   95篇
  2007年   66篇
  2006年   70篇
  2005年   74篇
  2004年   75篇
  2003年   63篇
  2002年   53篇
  2001年   55篇
  2000年   74篇
  1999年   62篇
  1998年   21篇
  1997年   22篇
  1996年   30篇
  1995年   26篇
  1994年   23篇
  1993年   24篇
  1992年   52篇
  1991年   53篇
  1990年   53篇
  1989年   60篇
  1988年   44篇
  1987年   41篇
  1986年   50篇
  1985年   47篇
  1984年   24篇
  1983年   17篇
  1982年   22篇
  1981年   15篇
  1980年   15篇
  1979年   18篇
  1977年   16篇
  1976年   18篇
  1975年   17篇
  1967年   13篇
  1966年   17篇
排序方式: 共有2138条查询结果,搜索用时 0 毫秒
101.
102.
103.
104.
105.
Client preferences have been identified as an essential part of evidence‐based practice in psychology. Further, client preferences have been found to play an important role in determining premature termination and therapy outcomes. However, our current understanding of this client variable is limited because of the methodologies that have previously been used to assess these preferences. In this study, 57 adult clients from a university‐based psychology department clinic completed an instrument weighing preferences for intervention specific empirical support against preferences for 4 other common factor variables. These clients were found to discount a significant amount of intervention empirical support to ensure the following: (a) a satisfactory therapeutic relationship could be developed, (b) their therapist would be empathetic and accepting, (c) their therapist would have a greater level of experience, and (d) they, as clients, would do more of the talking during sessions. These findings suggest that clients prefer treatment decisions to be based on variables other than intervention empirical support alone. Recommendations are made for assessing and including client preferences to provide more individually tailored interventions. © 2010 Wiley Periodicals, Inc. J Clin Psychol 66:1–15, 2010.  相似文献   
106.
107.
108.
Inteins comprise a large family of phylogenetically widespread self-splicing protein catalysts that colonize diverse host proteins. The evolutionary and functional relationship between the intein and the split-host protein, the exteins, is largely unknown. To probe an association, we developed an in vivo and in vitro intein assay based on FRET. The FRET assay reports cleavage of the intein from its N-terminal extein. Applying this assay to randomized extein libraries, we show that the nature of the extein substrate bordering the intein can profoundly influence intein activity. Residues proximal to the intein-splicing junction in both N- and C-terminal exteins can accelerate the N-terminal cleavage rate by >4-fold or attenuate cleavage by 1,000-fold, both resulting in compromised self-splicing efficiency. The existence and the magnitude of extein effects require consideration for maximizing the utility of inteins in biotechnological applications, and they predict biases in intein integration sites in nature.  相似文献   
109.
Death and the research imperative   总被引:3,自引:0,他引:3  
  相似文献   
110.
OBJECTIVES: To explore resident physician-patient interaction in primary care to address issues relevant to quality of care for older people. DESIGN: A sample of 509 new, adult, nonpregnant patients was assigned to the care of second- and third-year residents in primary care clinics. Care was compared for three subgroups of patients: older patients (65 years or older; n = 45), those aged 18 to 44 years (n = 320), and those aged 45 to 64 years (n = 144). SETTING: Observations were made at the family medicine and general internal medicine clinics at the University of California, Davis. MEASUREMENTS: Self-report by means of the Medical Outcomes Study Short Form-36 (MOS SF-36) was used to determine patient demographics and patient health status. Two measures of satisfaction were obtained gauging reaction to medical care in general and to the videotaped visit specifically. Videotapes were coded for content using the Davis Observation Code. RESULTS: Self-reported health status of older persons was poorer than that of younger groups as measured by the MOS SF-36. Differences in demographics were explored and then controlled, along with physical health status in subsequent analyses. Supporting prior studies, this study found that older patients had more return visits and reported higher levels of satisfaction than did younger comparison groups. Contrary to prior literature, older patients were found to have longer visits than did younger cohorts. The physician-patient interaction was significantly different in many areas between these three groups. Whereas older patients experienced more chatting in their visits, they were given less counseling, asked fewer questions, had less discussion about their families and their use of substances, were asked to change their health behavior habits less often, and were given less health education. For older patients, more of each visit was spent checking on compliance with earlier treatment and developing treatment plans. CONCLUSIONS: These results provide a new and more detailed view of how resident physician-patient interaction differs between older and younger groups and raise important issues on whether quality of care needs for this population are being adequately addressed, particularly regarding mental health issues.  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