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   1301篇
  免费   72篇
  国内免费   9篇
耳鼻咽喉   1篇
儿科学   8篇
妇产科学   14篇
基础医学   60篇
口腔科学   4篇
临床医学   128篇
内科学   140篇
皮肤病学   10篇
神经病学   26篇
特种医学   31篇
外科学   31篇
综合类   226篇
一般理论   1篇
预防医学   579篇
眼科学   6篇
药学   74篇
  2篇
中国医学   33篇
肿瘤学   8篇
  2024年   6篇
  2023年   26篇
  2022年   59篇
  2021年   90篇
  2020年   81篇
  2019年   50篇
  2018年   42篇
  2017年   41篇
  2016年   32篇
  2015年   36篇
  2014年   75篇
  2013年   110篇
  2012年   80篇
  2011年   75篇
  2010年   76篇
  2009年   69篇
  2008年   67篇
  2007年   63篇
  2006年   48篇
  2005年   40篇
  2004年   27篇
  2003年   27篇
  2002年   30篇
  2001年   11篇
  2000年   19篇
  1999年   15篇
  1998年   11篇
  1997年   4篇
  1996年   13篇
  1995年   9篇
  1994年   2篇
  1993年   6篇
  1992年   4篇
  1991年   4篇
  1990年   7篇
  1989年   4篇
  1988年   6篇
  1987年   3篇
  1986年   1篇
  1985年   3篇
  1982年   2篇
  1980年   1篇
  1979年   1篇
  1978年   1篇
  1977年   1篇
  1974年   1篇
  1973年   1篇
  1970年   1篇
  1969年   1篇
排序方式: 共有1382条查询结果,搜索用时 10 毫秒
41.
浅议构建和谐校园视域下的高校党建工作创新   总被引:1,自引:0,他引:1  
构建和谐校园是构建社会主义和谐社会的重要组成部分,它具有十分丰富的内涵,其关键在党。当前构建和谐校园面临着复杂的国际环境、经济社会发展的新形势、高等教育改革发展中出现的新问题,这对高校党建工作提出了新要求、新任务、新课题。本文从观念创新、组织创新、内容创新、制度创新等方面切入,积极探索推进高校党建工作创新的有效途径,努力为构建和谐校园提供坚强的组织保证。  相似文献   
42.
在介绍作风建设在医院管理中的实践与体会的基础上,从思想作风、学风、工作作风、领导作风、生活作风方面阐述了干部作风建设在现代医院管理中的发展思路。  相似文献   
43.
Methods of determining the allergenic activity of volatile substances given off into the atmosphere from polymer building materials (PBM) are developed. To detect sensitization in experiments on guinea pigs, in vitro allergic diagnostic methods are used (the passive hemagglutination test, specific leukocyte agglomeration test, intensification of leukocyte pyroninophilia test). It is shown that prolonged contact with PBM can give rise to atopic allergic reactions.Medical Institute, Rostov-on-Don. (Presented by Academician of the Academy of Medical Sciences of the USSR A. D. Ado.) Translated from Byulleten' Éksperimental'noi Biologii i Meditsiny, Vol. 83, No. 2, pp. 202–205, February, 1977.  相似文献   
44.
Ergosterol was used as a specific indicator of fungal biomass to determine and assess mould growth on damp building material. The samples were saponified, cleaned up on a silica gel column and the sterols silylated and analysed by gas chromatography and mass spectrometry in MS/MS mode. Ninety-one samples of building materials from damp rooms were analysed including plaster, plaster/paint, paint, wood-chip wallpaper and paper wall covering. The concentrations of ergosterol ranged from 0.1 to 130 microg/g dry mass and depended on carbon content of the material. The highest concentrations were determined for wallpaper, the lowest for plaster and intermediate ones for paint. Based on ergosterol content and inspection of the room during sampling a rough classification of mould infestation is presented. The applicability of the ergosterol method was further tested in two case studies on the spatial distribution of fungi on damp walls and irregular distributions were found. With few exceptions the concentration of ergosterol in building materials was found to be a suitable indicator to estimate fungal biomass.  相似文献   
45.
Systemic capacity building: a hierarchy of needs   总被引:1,自引:0,他引:1  
'Capacity building' is the objective of many development programmes and a component of most others. However, satisfactory definitions continue to elude us, and it is widely suspected of being too broad a concept to be useful. Too often it becomes merely a euphemism referring to little more than training. This paper argues that it is more important to address systemic capacity building, identifying a pyramid of nine separate but interdependent components. These form a four-tier hierarchy of capacity building needs: (1) structures, systems and roles, (2) staff and facilities, (3) skills, and (4) tools. Emphasizing systemic capacity building would improve diagnosis of sectoral shortcomings in specific locations, improve project/programme design and monitoring, and lead to more effective use of resources. Based on extensive action research in 25 States, experience from India is presented to illustrate how the concept of the capacity building pyramid has been put to practical use.  相似文献   
46.
47.
刘燕敏 《中国医院》2008,12(1):71-74
介绍了最新颁布的俄罗斯联邦国家标准GOSTR525392006《医院空气洁净度一般要求》,并与我国医院洁净手术部建筑技术规范的编制思路、技术措施等作一比较,这对我国手术室的建设有较大的参考作用。  相似文献   
48.
从四个方面探讨了药厂建筑的立面设计,包括统一与变化的设计原则、工艺要素的影响、节能与立面设计、饰面材料的选用。  相似文献   
49.
Increasingly, physicians are being asked to evaluate patients with putative environmentally associated illnesses. These can include a variety of problems, including infectious illnesses (Legionnaire's disease), chemical exposure in the workplace, and sick building syndromes. The latter has been an issue particularly in asthma because of the association of mold and increased bronchial responsiveness. Recently, attention has been focused on the mold Stachybotrys in human disease. Stachybotrys was first identified more than 60 years ago following an epidemic of stomatitis, rhinitis, conjunctivitis, pancytopenia, neurologic disorders, and death in horses. Since then, Stachybotrys has been identified in several outbreaks of disease in animals. It has also attracted attention as a possible agent in idiopathic pulmonary hemorrhage in infants. Stachybotrys is a relatively uncommon fungus but has been isolated from a variety of sources, including contaminated grains, tobacco, indoor air, insulator foams, and water-damaged buildings with high humidity. This fungus is particularly important because it is one of a series of fungi that produces trichothecenes mycotoxins; these mycotoxins are biologically active and can produce a variety of physiological and pathologic changes in humans and animals, including modulation of inflammation and altered alveolar surfactant phospholipid concentrations. The presence of Stachybotrys in a building does not necessarily imply a cause-and-effect relationship with illness, but should alert physicians and healthcare professionals to do more vigorous environmental testing. Guidelines are presented herein for intervention measures in the maintenance of heating, ventilation, and air-conditioning systems.  相似文献   
50.
1850例孕妇建卡状况分析及对策   总被引:8,自引:1,他引:8  
目的 :了解孕妇建卡状况 ,加强围产期保健 ,促进生殖健康。方法 :在建立《孕产妇保健手册》时对 1850例建卡孕妇逐一询问 ,填写统一的调查表 ,所有资料输入微机并用 SPSS统计包进行分析。结果 :在 1850例孕妇中 ,计划妊娠占2 9 .78% ,非计划妊娠者占 70 .2 2 % ,其中早孕建卡者占 3 8.3 8%。推迟建卡的原因主要是不知道早孕建卡 (占 3 6.2 0 % ) ,以为 3个月后建卡 (占 2 0 .69% )及部分医务人员说 3个月后建卡 (占 11.97% )。先兆流产保胎或早孕反应过重者占 10 .98%。建卡的孕妇中有人工流产史的比例较高 ,占 48.65%。在建卡时发现的高危因素中 ,居前 3位的分别是疤痕子宫、高龄妊娠、人工流产≥ 3次。结论 :围产期保健应重视孕前保健 ,选择最佳生育年龄 ,提倡有计划妊娠 ,广泛宣传围产期保健知识 ,提高早孕建卡率 ,降低人工流产率及剖孕产率 ,减少高危妊娠的发生 ,保护妇女生殖健康  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