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   30073篇
  免费   5477篇
  国内免费   166篇
耳鼻咽喉   124篇
儿科学   465篇
妇产科学   379篇
基础医学   1403篇
口腔科学   672篇
临床医学   7011篇
内科学   1974篇
皮肤病学   146篇
神经病学   1190篇
特种医学   373篇
外国民族医学   1篇
外科学   3822篇
综合类   4227篇
一般理论   25篇
预防医学   6599篇
眼科学   174篇
药学   2472篇
  89篇
中国医学   3707篇
肿瘤学   863篇
  2024年   24篇
  2023年   950篇
  2022年   1116篇
  2021年   1737篇
  2020年   2176篇
  2019年   1792篇
  2018年   1606篇
  2017年   1749篇
  2016年   1564篇
  2015年   1454篇
  2014年   2361篇
  2013年   2893篇
  2012年   1947篇
  2011年   2080篇
  2010年   1598篇
  2009年   1445篇
  2008年   1479篇
  2007年   1406篇
  2006年   1256篇
  2005年   892篇
  2004年   746篇
  2003年   719篇
  2002年   472篇
  2001年   416篇
  2000年   397篇
  1999年   260篇
  1998年   219篇
  1997年   188篇
  1996年   145篇
  1995年   125篇
  1994年   88篇
  1993年   81篇
  1992年   56篇
  1991年   45篇
  1990年   54篇
  1989年   28篇
  1988年   26篇
  1987年   20篇
  1986年   17篇
  1985年   20篇
  1984年   9篇
  1983年   8篇
  1982年   8篇
  1981年   6篇
  1980年   10篇
  1979年   6篇
  1978年   3篇
  1977年   4篇
  1975年   3篇
  1974年   8篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Aim: The aim of the present study was to explore the significance of the mealtime experience among residents of nursing homes in Spain. Methods: A qualitative phenomenological approach was followed. An initial purposeful sampling of Spanish residents in for‐profit nursing homes in the southern area of Madrid was carried out. A theoretical sampling was also implemented in order to gain a more in‐depth understanding of dependence. Inclusion criteria for nursing home residents were: age (60 years or older) and lack of any cognitive impairment. Data were collected using unstructured and semistructured interviews. Data collection was concluded once theoretical saturation was reached, and the data were analysed using the Giorgi proposal. Results: A total of 26 residents with a mean age of 83 years were included. Three main themes that describe the significance of meals in nursing homes emerged from the data: (i) timing of the meals – mealtimes serve as a point of reference for organizing activities in the nursing home and orient the residents during the day; (ii) table allocation – table allocation depends on the judgment of the personnel, the behavior of each resident and on the input from the residents that use a table; and (iii) the meals themselves – food is experienced as a privilege, as a sign of autonomy and normality, and as an indicator of personal identity. Conclusion: Understanding the social significance of meals for residents in nursing homes would provide deeper insight into resident expectations. This will in turn help to improve service and quality of life for residents. Geriatr Gerontol Int 2013; 13: 482–489 .  相似文献   
2.
3.
Background Beliefs about the controllability of behaviour have been consistently shown to be important in understanding the responses of carers to the challenging behaviour of people with intellectual disabilities (IDs). This paper reports the reliability and validity of the Controllability Beliefs Scale (CBS), a 15‐item measure of beliefs regarding the controllability of challenging behaviour when used with carers of people with IDs. Methods Two hundred and sixty‐four carers of people with IDs completed the CBS, 74 people also completed the Modified Attributional Style Questionnaire and the Self‐Injury Behavioural Understanding Questionnaire scale to determine concurrent and convergent validity and 34 people completed the scale twice within a 2‐ to 4‐week period to determine test–retest reliability. Results The scale has a two‐factor structure and has adequate internal reliable. The scale is significantly correlated with the controllability, internality and stability items from the Modified Attributional Style Questionnaire, showed expected associations with behavioural and internal emotional understanding items from the Self‐Injury Behavioural Understanding Questionnaire. The scale has good test–retest reliability. Conclusions The data support use of the CBS in clinical practice and research to assess carers' beliefs regarding challenging behaviour of people with IDs.  相似文献   
4.
Background Patients with intellectual disabilities (ID) receive health care by proxy. It is family members and/or paid support staff who must recognise health problems, communicate with clinicians, and report the benefits, if any, of a particular treatment. At the same time international and national statutes protect and promote the right of people with disabilities to access the highest attainable standards of health on the basis of free and informed consent. Methods To consider the role of parent‐proxies in the management of epilepsy in adult children with ID who are at risk of lacking capacity to make decisions about their health care we interviewed 21 mothers. Findings These mothers are not pursuing changes in treatment that might improve their son or daughter's epilepsy, nor are they willing to countenance changes in treatment. Clinicians concerned to build and sustain therapeutic alliances with these mothers, our evidence suggests, may well avoid going against their wishes. Discussion Our research highlights the interactional contingencies of a hitherto neglected three‐way clinical relationship comprising parent‐proxy, an adult at risk of lacking decision‐making capacity, and a treating clinician. This is a relationship, our findings suggest, where little importance is attached to either patient consent, or involvement in treatment decisions.  相似文献   
5.
6.
The emergency department (ED) is a key site in preventing suicide. Yet there has been very little research on ED screening and interventions targeting the suicidal patient. Conducting research on interventions for preventing suicidal behavior in the ED population may evoke the dilemma of how to fulfill ethical obligations to protect research subjects when doing so can impair the validity of the study. In this paper we present a case study of a research protocol on the utility of routine screening with a brief intervention for suicidal ideation that raised issues regarding researchers' obligation to disclose information about subjects' suicidality to ED staff. After exploring the imperfect relationship between suicidal ideation and completed suicide (i.e., many people with ideation never attempt or commit suicide), we present an analysis of the causal relationship between these phenomena. This leads us to suggest that it should not be mandatory for researchers to disclose to ED staff when a subject reveals suicide ideation in a screening questionnaire—although other preventive measures may be called for. In general, the extent of the duty placed on researchers to intervene on behalf of their subjects should be proportional to the likelihood and magnitude of risk presented to subjects by the underlying condition, and should be balanced against the importance of the research question.  相似文献   
7.
8.
9.
10.
Data from 300 studies published in four research journals in 2010–2011 were analyzed to assess whether nurse researchers continue to oversample females. One‐third of the studies had samples that were 100% female and, on average, 74% of all study participants were female. As was found for studies published 5 years earlier, the bias against male participants was consistent across studies differing in methods, specialty areas, funding, and sample characteristics. Studies with male first authors, however, were significantly less likely to have biased samples. Authors of only 23.6% of studies with mixed‐sex samples provided information about sex differences in outcomes. Because of gender bias, the evidence base for nursing practice may suffer from problems with generalizability. © 2012 Wiley Periodicals, Inc. Res Nurs Health 36:75–83, 2013  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