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   14461篇
  免费   1131篇
  国内免费   31篇
耳鼻咽喉   108篇
儿科学   437篇
妇产科学   378篇
基础医学   2371篇
口腔科学   282篇
临床医学   1662篇
内科学   2812篇
皮肤病学   341篇
神经病学   1534篇
特种医学   516篇
外科学   1638篇
综合类   115篇
一般理论   14篇
预防医学   1273篇
眼科学   201篇
药学   852篇
中国医学   18篇
肿瘤学   1071篇
  2023年   132篇
  2022年   94篇
  2021年   360篇
  2020年   304篇
  2019年   428篇
  2018年   433篇
  2017年   360篇
  2016年   422篇
  2015年   396篇
  2014年   518篇
  2013年   730篇
  2012年   1030篇
  2011年   963篇
  2010年   508篇
  2009年   503篇
  2008年   778篇
  2007年   821篇
  2006年   778篇
  2005年   717篇
  2004年   622篇
  2003年   584篇
  2002年   562篇
  2001年   305篇
  2000年   299篇
  1999年   277篇
  1998年   136篇
  1997年   85篇
  1996年   86篇
  1995年   78篇
  1994年   87篇
  1993年   74篇
  1992年   192篇
  1991年   159篇
  1990年   141篇
  1989年   162篇
  1988年   130篇
  1987年   128篇
  1986年   113篇
  1985年   115篇
  1984年   100篇
  1983年   77篇
  1982年   55篇
  1981年   51篇
  1980年   39篇
  1979年   72篇
  1978年   37篇
  1977年   51篇
  1974年   45篇
  1973年   38篇
  1971年   37篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
Background: Physicians have long had patients whom they have labeled “difficult”, but little is known about how medical students perceive difficult encounters with patients.

Methods: In this study, we analyzed 134 third year medical students’ reflective essays written over an 18-month period about difficult student–patient encounters. We used a qualitative computerized software program, Atlas.ti to analyze students’ observations and reflections.

Results: Main findings include that students described patients who were angry and upset; noncompliant with treatment plans; discussed “nonmedical” problems; fearful, worried, withdrawn, or “disinterested” in their health. Students often described themselves as anxious, uncertain, confused, and frustrated. Nevertheless, they saw themselves behaving in empathic and patient-centered ways while also taking refuge in “standard” behaviors not necessarily appropriate to the circumstances. Students rarely mentioned receiving guidance from attendings regarding how to manage these challenging interactions.

Conclusions: These third-year medical students recognized the importance of behaving empathically in difficult situations and often did so. However, they often felt overwhelmed and frustrated, resorting to more reductive behaviors that did not match the needs of the patient. Students need more guidance from attending physicians in order to approach difficult interactions with specific problem-solving skills while maintaining an empathic, patient-centered context.  相似文献   
42.
Objective: To identify a context-effective hearing screening test for primary schools in the Western Cape, South Africa using an emic-etic framework for test selection. Design: A sequential mixed methods design was used to: (1) Identify test properties needed to successfully screen hearing in primary school children in the Western Cape, (2) select the hearing screening test most likely to succeed in this context, and (3) assess the use of the test in context. Study sample: Three nurses, two nursing assistants, two paediatric audiologists, and 100 grade-one children participated. Results: Distortion product otoacoustic emissions (DPOAEs) were identified as the test most likely to succeed as a hearing screening test in primary school children in the Western Cape. While school nurses were able to successfully apply OAE testing in this context, its sensitivity to hearing loss in these children was 57.14%. Conclusions: The sensitivity would need to be improved before OAE testing could be used as a context-effective screening test for primary school children in the Western Cape. The study demonstrated the value of collaborative program planning using an emic-etic framework to ensure that screening tests are contextually appropriate.  相似文献   
43.
44.
45.
Determining reliable and clinically significant change is central to evidence‐based practice yet rarely used in routine clinical settings. This paper illustrates these methods in the context of an evaluation of cognitive behaviour therapy for distressing auditory hallucinations (“voices”). We used data from a clinical sample attending Perth Voices Clinic, a transdiagnostic outpatient service for distressing voices, and a previously published reference sample of healthy voice hearers. Our outcomes on the primary measure of voice distress, derived from a previous factor analysis of the Psychotic Symptom Rating Scale‐Auditory Hallucinations subscale, showed that 62.9% of clients were classified as Recovered/Improved, 35.5% were classified as Unchanged, and 0.02% were classified as Deteriorated. Partial support for the validity of these classifications was obtained from the scores on the Depression, Anxiety, Stress Scales (Lovibond & Lovibond, 1995) but not on the Social and Occupational Functional Assessment Scale (Goldman et al., 1992). Clients classified as Recovered showed better emotional functioning on the Depression, Anxiety, Stress Scales compared with those who did not make a clinically significant change in voice distress. A tool is provided to assist practitioners to evaluate whether individual clients have benefited from therapy for distressing voices or not, which can be used to guide future treatment decisions ( https://osf.io/gd9e5/ ).  相似文献   
46.
47.
48.
Psychotherapie Forum - In dem Beitrag wird einleitend die Geschichte der Entstehung der Spezialambulanz für Borderline-Störungen an der Universitätsklinik für Psychoanalyse und...  相似文献   
49.
In mammals, the central pacemaker that coordinates 24‐hr rhythms is located in the suprachiasmatic nucleus (SCN). Individual neurons of the SCN have a molecular basis for rhythm generation and hence, they function as cell autonomous oscillators. Communication and synchronization among these neurons are crucial for obtaining a coherent rhythm at the population level, that can serve as a pace making signal for brain and body. Hence, the ability of single SCN neurons to produce circadian rhythms is equally important as the ability of these neurons to synchronize one another, to obtain a bona fide pacemaker at the SCN tissue level. In this chapter we will discuss the mechanisms underlying synchronization, and plasticity herein, which allows adaptation to changes in day length. Furthermore, we will discuss deterioration in synchronization among SCN neurons in aging, and gain in synchronization by voluntary physical activity or exercise.  相似文献   
50.
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