全文获取类型
收费全文 | 42141篇 |
免费 | 3096篇 |
国内免费 | 326篇 |
专业分类
耳鼻咽喉 | 241篇 |
儿科学 | 612篇 |
妇产科学 | 586篇 |
基础医学 | 1943篇 |
口腔科学 | 1491篇 |
临床医学 | 11269篇 |
内科学 | 2884篇 |
皮肤病学 | 436篇 |
神经病学 | 790篇 |
特种医学 | 548篇 |
外科学 | 2685篇 |
综合类 | 7975篇 |
一般理论 | 36篇 |
预防医学 | 9602篇 |
眼科学 | 188篇 |
药学 | 2309篇 |
560篇 | |
中国医学 | 916篇 |
肿瘤学 | 492篇 |
出版年
2024年 | 125篇 |
2023年 | 859篇 |
2022年 | 1371篇 |
2021年 | 1808篇 |
2020年 | 1787篇 |
2019年 | 1492篇 |
2018年 | 1536篇 |
2017年 | 1477篇 |
2016年 | 1359篇 |
2015年 | 1268篇 |
2014年 | 3049篇 |
2013年 | 3578篇 |
2012年 | 2827篇 |
2011年 | 2872篇 |
2010年 | 2317篇 |
2009年 | 2183篇 |
2008年 | 2244篇 |
2007年 | 2467篇 |
2006年 | 2191篇 |
2005年 | 1570篇 |
2004年 | 1271篇 |
2003年 | 1021篇 |
2002年 | 752篇 |
2001年 | 672篇 |
2000年 | 561篇 |
1999年 | 467篇 |
1998年 | 405篇 |
1997年 | 314篇 |
1996年 | 261篇 |
1995年 | 227篇 |
1994年 | 165篇 |
1993年 | 141篇 |
1992年 | 121篇 |
1991年 | 140篇 |
1990年 | 129篇 |
1989年 | 96篇 |
1988年 | 102篇 |
1987年 | 76篇 |
1986年 | 29篇 |
1985年 | 52篇 |
1984年 | 28篇 |
1983年 | 24篇 |
1982年 | 18篇 |
1981年 | 26篇 |
1980年 | 22篇 |
1979年 | 18篇 |
1978年 | 13篇 |
1977年 | 14篇 |
1976年 | 9篇 |
1973年 | 3篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
51.
This paper describes a teaching programme for final- (sixth-) year undergraduate medical students during their 10-week term in child health. Students attend schools on two occasions and are actively involved in the physical, educational and emotional assessment of children. The advantages of the programme include active participation by the students, contact with children in a less threatening environment, learning new skills in the assessment of children, and knowledge of common screening procedures. Student evaluation of the programme has been positive. 相似文献
52.
A significant minority of medical and dental students fail their undergraduate courses. Early warning systems (EWSs) have been developed in some areas of higher education to predict 'at-risk' students at an early remedial stage. An attempt is made to develop an EWS to predict failure in the bacteriology component of the Batchelor of Dental Surgery course at Manchester Dental School. A system based on class tests and previous end-of-year performance is derived which is used to predict those students likely to fail or fall in the bottom 20-25% in their finals examination. The predictors are combined by a simple equal weights method, which is found to have the same predictive power as using multiple regression. Failure was correctly predicted in 60% of cases, at the expense of 71% false alarms. The high number of false alarms reflects the low failure rate rather than the lack of predictive information. The need for effective cross-validation of EWSs is discussed; many previous studies have not been tested on independent data. 相似文献
53.
Elizabeth Landerholm 《Early child development and care》1994,101(1):13-22
The computer use of two classrooms of kindergarten aged children in private school in Chicago were compared for variance in terms of the age and sex of the children, for variance by classroom, and for variance in the software selected. The major statistical method used was analysis of variance. There were two dependent variables: total frequency of computer use and the difference between the frequency in the first half and that in the second half (in order to examine the changing pattern of computer use in the two classrooms). There was no significant difference in computer use by sex or age, but there was a significant difference in the frequency of computer by classroom in the second half of the project compared to the first half. There was no significant difference in the software selected. 相似文献
54.
Alan B. Storrow MD Lawrence B. Stack MD Phred Petersen 《Academic emergency medicine》1994,1(5):454-462
In the emergency department, photography requires an expedient, portable, adaptable, and relatively simple camera system to take advantage of fleeting opportunities for recording visually educational material. These prerequisites are different from those for traditional medical photography, for which relatively plentiful time and advanced equipment are routinely available. Medical photography departments provide an invaluable service, but are rarely convenient for immediate or spontaneous emergency. department photographs. Although no single system or technique is optimal in all these areas, the authors find certain components and approaches work well. They review photographic equipment, paying attention to speed, ease of use, and quality of output. They also review simple techniques such as film choice, lighting, close-up photography, standardization, copy work, and radiographs. Attention to these details can help the inexperienced photographer obtain a system and begin to enjoy the rewards of effective photography in the emergency department. 相似文献
55.
Summary: The Internet contains a vast amount of medically relevant information. In order to access this information, however, many networks require one to master applications written in UNIX, an operating system considered by many not to be user friendly. Although these tools may be available on the campus, it is difficult to teach their use unless there is some immediate benefit to the already busy user. From that standpoint, it is important for instructors to realize that common UNIX applications can be utilized as classroom tools to significantly enhance the learning experience by facilitating teacher/student communication. Also, whilst the student enjoys greater communication with the instructor (and with other students) he/she is also becoming adept at using information management tools. 相似文献
56.
Summary: Summary. A study was conducted to determine whether the attitudes of medical students to death and caring changed during the 3 months following exposure to cadaver dissection. All first-year students were invited to complete a questionnaire immediately before their initial cadaver dissection experience, after 6 weeks, and after a further 3 months. The questionnaire reflected attitudes to death, violent death, death of someone known to the respondent and caring when someone known to the respondent is seriously injured. Ethnicity and previous exposure to dying has no effect on responses, but overall men students' reactions were significantly less than for women ( P < 0.001). The responses given on the final part of the questionnaire after 3 months were significantly lower than those to most questions in the first part of the questionnaire. The exceptions were those questions where the subject in the given scenario was known to the respondent, where reactions were rated significantly greater ( P < 0.001) in the follow-up questionnaire and can be explained on the basis that they were a personal referent.
Students rapidly develop a coping mechanism which enables them to view cadaver dissection as an occupation quite divorced from living human beings. During these early months of training solicitude decreases for those who die who are unknown to them, but concern for personal referents increases. Educators should be aware of the dramatic change of attitudes among students and the process of professionalization which might influence their caring of future patients. 相似文献
Students rapidly develop a coping mechanism which enables them to view cadaver dissection as an occupation quite divorced from living human beings. During these early months of training solicitude decreases for those who die who are unknown to them, but concern for personal referents increases. Educators should be aware of the dramatic change of attitudes among students and the process of professionalization which might influence their caring of future patients. 相似文献
57.
This paper examines the use of videotape simulation as a research method for the exploration of clinical problem-solving, the challenges posed and the strategies employed to overcome the difficulties encountered are discussed. The simulation forms part of a larger comparative study of outcomes of pre-registration nurse education programmes, commissioned by the English National Board for Nursing, Midwifery and Health Visiting. 相似文献
58.
党的十六大所提出的全面建设小康社会,是一个包括政治、经济、文化、环境乃至国民素质的综合概念。它特别要求国民具有健全的环境意识,良好的环境伦理道德和高尚的环境道德行为。作为担负着提高全体国民环境素质和培养中小学环境教育教师和地方环境建设服务三重使命的高师地理学科,面临着其环境教育的课程设置、教材建设和教师队伍建设等不可回避的课题,有必要进行深入探索。 相似文献
59.
以计算机为基础的教学(CBE)在护理领域的应用现状 总被引:2,自引:0,他引:2
随着计算机和网络技术的普及应用,以计算机为基础的教育(Computer Based Education,CBE)特别是多媒体课件的应用在护理教育中越来越受重视。然而,我国CBE在护理领域的应用尚处于起步阶段,也存在着一些缺陷和不足,有待于进一步完善。 相似文献
60.