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   18357篇
  免费   2445篇
  国内免费   174篇
耳鼻咽喉   63篇
儿科学   290篇
妇产科学   264篇
基础医学   936篇
口腔科学   517篇
临床医学   5742篇
内科学   1327篇
皮肤病学   111篇
神经病学   643篇
特种医学   290篇
外科学   2347篇
综合类   2306篇
预防医学   3860篇
眼科学   103篇
药学   1247篇
  131篇
中国医学   418篇
肿瘤学   381篇
  2024年   30篇
  2023年   413篇
  2022年   514篇
  2021年   1065篇
  2020年   1122篇
  2019年   1078篇
  2018年   1010篇
  2017年   961篇
  2016年   1015篇
  2015年   876篇
  2014年   1336篇
  2013年   1849篇
  2012年   996篇
  2011年   1063篇
  2010年   840篇
  2009年   915篇
  2008年   892篇
  2007年   874篇
  2006年   691篇
  2005年   596篇
  2004年   479篇
  2003年   356篇
  2002年   302篇
  2001年   274篇
  2000年   277篇
  1999年   202篇
  1998年   179篇
  1997年   158篇
  1996年   103篇
  1995年   76篇
  1994年   54篇
  1993年   51篇
  1992年   59篇
  1991年   31篇
  1990年   30篇
  1989年   22篇
  1988年   26篇
  1987年   16篇
  1986年   12篇
  1985年   19篇
  1984年   24篇
  1983年   13篇
  1982年   10篇
  1981年   16篇
  1980年   10篇
  1979年   4篇
  1978年   10篇
  1977年   12篇
  1976年   6篇
  1975年   7篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
Abstract   This paper explores the integral relationship between philosophy and nursing practice. The discussion begins by suggesting that philosophy is more than a set of abstract ideas or an intellectual activity; that it is a way of living and being in practice. The author contends that philosophical inquiry can improve the adequacy and relevance of family and nursing theories by promoting the examination and expansion of those theories in light of the experiences and intuitions of nurses. Offering a personal example the author exemplifies how philosophical activity can directly and experientially enhance everyday nursing practice.  相似文献   
82.
俞慧芳  陈中文  施秀珍  谢亮  胡煜 《中国健康教育》2007,23(12):911-912,916
目的了解城郊结合部外来人员聚集地生活环境现况和霍乱等肠道传染病健康知信行情况,进一步明确肠道传染病防治健康教育与健康促进工作的重点开展方向。方法采用随机抽样的方法,运用统一设计的调查问卷对嘉兴市5县2区城郊结合部等外来人员聚集地进行流行病学调查。结果93.06%的调查对象以租房为主,90.61%的生活用水来源于自来水,9.25%用井水;78.61%的人知道霍乱传播途径,21.53%的人知道霍乱主要临床症状,28.03%的人知道肠道传染病全部预防措施;77.31%的知识来源于电视,其他顺位依次为书刊、广播、家人或朋友处;希望获得宣传资料形式:传单占46.68%,墙报占31.21%。结论外来人员租房人数居多,有部分人使用井水;肠道传染病相关知识了解的较少。应采取多部门齐抓共管来改善外来人员聚集地的生活环境,因地制宜地对外来人员开展有针对性的预防肠道传染病健康教育。  相似文献   
83.
少数民族女大学生性与避孕行为调查   总被引:1,自引:1,他引:0  
目的:了解少数民族女大学生性与避孕行为状况。方法:在武汉地区,对各大学的少数民族女大学生进行了抽样调查。结果:调查了286名少数民族女大学生,其性行为率为14.68%,不同专业和不同年级的女大学生性行为率有统计学差异。女大学生性行为的原因以一时感情冲动、好奇、为了加强与男友的关系、生理需要为主,还有迫于暴力等原因。性伴侣以自己的男朋友为主(占95.23%以上),但也有一般熟人和一夜情对象;另有多性伴现象存在。发生性行为者中,初次性行为有42.85%未采取任何避孕措施;在近1年内有性行为者中,有54.54%的人每次性行为都采取了避孕措施。在性行为者中,有23.81%的学生怀孕,另有19.05%的学生患生殖系统炎症或性病。结论:少数民族女大学生中的性行为发生率较高,她们中存在性滥、怀孕和性传播疾病等问题。  相似文献   
84.
This study describes a p. year international data collection on the demand pattern for HIV-antibody tests in general practice recorded by 6 sentinel networks in 5 European countries. The purpose of the recording was to evaluate the use of HIV-antibody testing by general practitioners and the demand for testing among the general population. Sentinel networks of general practitioners are a possible and available instrument for monitoring the perception of the HIV-test, and indirectly of the threat of the HIV-epidemic by the public and by the general practitioners (GPs). Differences were found between the countries in the frequency of testing, the person asking the test and the reason for testing. Possible explanatory factors, such as differences in the routine testing of specific groups, differences in the training and in the role of the GP, differences in the characteristics of prevention policy, are discussed. The European comparison also offers the opportunity to reflect on common medical practice in dealing with demands for HIV-tests.  相似文献   
85.
药剂学主要研究药物制剂处方设计、制备工艺、药物制剂的稳定性、药物质量控制等内容,是联系药学与临床实践的一门应用性学科,是药学专业的一门主干课程.无论是在新剂型、新工艺、新技术、新药用材料应用等方面,还是在祖国传统中药的应用技术和研究开发方面,药剂学都取得了突破性进展.从培养高素质药学人才的目标出发,牡丹江医学院药学专业在课程体系、教学内容、教学方法和实践教学方面进行了改革,使药剂学课程建设与学科专业发展紧密联系,教学内容与培养目标相适应,形成了结构合理、特色鲜明的全新的药剂学课程,为实用型药学人才的培养奠定了基础.  相似文献   
86.
元认知能力在医学生临床实习过程中起着非常重要的作用。培养医学生的元认知能力 ,必须丰富医学生的元认知知识 ,强化医学生的元认知体验 ,促进医学生加强元认知监控 ,从而使他们成为独立自主、有创造力的学习者。  相似文献   
87.
The purpose of this study was to examine motor learning and retention given extensive practice in two fundamentally different movement sequences. One sequence was a memory-driven task (performing a series of whole body positions from memory) and the other a context-driven task (buttoning). Practice took place over 3 weeks, with performance measured weekly; retention was measured weekly for 3 weeks after practice. There were 7 people with Parkinson's disease (PD) and 7 age-matched neurologically healthy people who participated in this study. Both groups improved performance on both tasks with practice, with the majority of the change for the PD group occurring between 1 and 2 weeks of practice. Although those with PD did not necessarily perform as well as age-matched controls, they learned both sequences in a manner similar to age-matched controls, and exhibited retention across the 3-week retention interval. If people with PD are given sufficient practice they can learn and retain both memory-based and context-driven movement sequences as well as age-matched controls. The results provide support for maintaining physical activity and for intervention through movement therapy.  相似文献   
88.
89.
AIMS: To assess the performance of a risk score comprising data routinely available in general practice records (age, gender, body mass index, family history of diabetes, smoking habits and prescribed anti-hypertensive drugs or steroids) in detecting diabetes, impaired glucose tolerance and metabolic syndrome. METHODS: In a population-based, cross-sectional study in a semi-rural general practice in Jutland, Denmark, Cambridge Risk Scores were calculated for 1355 patients without known diabetes (69% response rate) who completed questionnaires and underwent anthropometric measurement and an oral glucose tolerance test. RESULTS: Prevalences of diabetes, impaired glucose tolerance and metabolic syndrome were 2.29% (95% CI: 1.56-3.23), 6.64% (95% CI: 5.38-8.10) and 13.4% (95% CI: 11.5-15.2), respectively. Area under the ROC curve for the risk score and diabetes was 83.8% (75.9-91.7) and for metabolic syndrome [European Group for the Study of Insulin Resistance (EGIR)] was 78.1% (74.6-81.6). Twenty per cent of the population had a risk score above 0.246; at this threshold the sensitivity to detect diabetes was 71.0% (53.4-83.9), the specificity 81.2% (79.0-83.2), positive predictive value 8.1% (6.6-10.0) and likelihood ratio 3.77 (2.94-4.85). For metabolic syndrome (EGIR) corresponding values for sensitivity were 50.3% (43.1-57.5), specificity 84.7% (82.5-85.6), positive predictive value 33.6% (28.2-39.4), and likelihood ratio 3.28 (2.69-4.00). CONCLUSIONS: Undiagnosed hyperglycaemia and metabolic syndrome are common. The Cambridge Risk Score is a practical first step in a screening procedure to identify individuals with these disorders who might benefit from diagnostic testing or to direct preventive interventions.  相似文献   
90.
We describe a model of how physician assistants can be used in an academic medical center to expand radiologist productivity, and to enhance the departmental academic and educational missions. At Harborview Medical Center, following a training program and graduated responsibility under supervision, physician assistants provide initial interpretation of radiology studies, consultation to referring physicians, and perform less complicated interventional procedures. Acceptance of physician assistants by the radiologists, radiology residents, and referring physicians has been high. Although the impact of physician assistants on departmental clinical productivity is difficult to measure, our data suggest that radiologists are more efficient when physician assistants are assigned to service, both in terms of numbers of studies interpreted, and timeliness of reporting and billing. As a result of the success of our program, we believe that physician assistants can have an important role in radiology practice.  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