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   4702篇
  免费   381篇
  国内免费   66篇
耳鼻咽喉   49篇
儿科学   53篇
妇产科学   28篇
基础医学   776篇
口腔科学   71篇
临床医学   428篇
内科学   330篇
皮肤病学   12篇
神经病学   885篇
特种医学   69篇
外科学   167篇
综合类   792篇
预防医学   761篇
眼科学   112篇
药学   253篇
  18篇
中国医学   242篇
肿瘤学   103篇
  2024年   21篇
  2023年   76篇
  2022年   147篇
  2021年   254篇
  2020年   220篇
  2019年   154篇
  2018年   129篇
  2017年   169篇
  2016年   167篇
  2015年   172篇
  2014年   304篇
  2013年   397篇
  2012年   313篇
  2011年   311篇
  2010年   217篇
  2009年   237篇
  2008年   247篇
  2007年   270篇
  2006年   212篇
  2005年   162篇
  2004年   151篇
  2003年   123篇
  2002年   92篇
  2001年   72篇
  2000年   53篇
  1999年   52篇
  1998年   56篇
  1997年   35篇
  1996年   39篇
  1995年   41篇
  1994年   23篇
  1993年   27篇
  1992年   20篇
  1991年   22篇
  1990年   27篇
  1989年   15篇
  1988年   18篇
  1987年   9篇
  1986年   14篇
  1985年   11篇
  1984年   13篇
  1983年   10篇
  1982年   4篇
  1981年   8篇
  1980年   5篇
  1979年   8篇
  1978年   8篇
  1977年   4篇
  1974年   4篇
  1969年   4篇
排序方式: 共有5149条查询结果,搜索用时 31 毫秒
51.
三明市医防融合改革源于医疗集团重医轻防以及三明市疾病预防需求增加的现状,通过预防与卫生健康网络的纵向融合、医疗与预防体系的横向融合、完善医疗与预防融合的政策支持三举并行,三明市已初步搭建起医防融合的桥梁。但改革面临着监督考核“缺位”、政府管控“越位”与协同机制“错位”的三重悖论,通过构建利益共同体能够有效化解悖论,可通过强化政策执行监督、放权与赋权并举以及完善医防协同机制的路径实现优化。  相似文献   
52.
目的 调查5省基层卫生技术人员医防融合相关培训状况以及相关知识能力的需求状况,为完善我国基层医防融合建设,提高基层卫生服务机构防病治病能力提供参考建议。方法 对五个省15个区县的乡镇卫生院和社区卫生服务中心(站)的卫生技术人员进行分层抽样问卷调查,对调查数据进行描述并对各种医防融合相关知识能力需求进行单因素χ2检验和多因素logistic分析。结果 76.0%的基层卫生技术人员近一年参加过培训,乡镇卫生院卫生技术人员培训参与率(73.2%)低于社区卫生服务中心(站)(84.3%)(χ2= 83.812,P<0.001),不同特征基层卫生技术人员培训参与率不同(P<0.01)。各类培训参与率均低于相关知识技能的需求率,公共卫生相关知识技能的需求率最高。χ2检验和多因素logistic分析显示不同特征基层卫生技术人员对各类知识技能的需求率不同:相对于社区卫生服务中心(站),乡镇卫生院人员对传染病防控技能(OR = 0.756,95%CI:0.666~0.858)和一般病与常见病诊疗技能(OR = 0.860,95%CI:0.762~0.971)的需求程度更高;临床医疗岗位人员对传染病防控技能及一般病与常见病诊疗技能、的需求程度更高(P<0.001);年轻人员对慢病管理与病因监测技能的需求更高(OR = 0.937,95%CI:0.885~0.992);公共卫生岗位人员(OR = 1.346,95%CI:1.114~1.626)和专职管理岗位人员(OR = 2.334,95%CI:1.707~3.191)对信息化技能的需求程度更高。结论 应以需求为导向,加强基层卫生技术人员的培训强度,提升培训内容和知识技能需求的匹配程度,建立完善医防交叉培训机制和医防能力兼备的复合型人才培养供给体系。  相似文献   
53.
目的 通过调查我国5省基层卫生人员医防工作的参与情况与对开展医防融合工作的认知现状, 探讨目前基层医防融合工作存在的问题,为促进基层医疗卫生机构医防融合工作提供参考依据。方法 采用多阶段分层抽样,根据地域方位差异分别抽取四川、贵州、江西、江苏和广东5个省,再依据经济状况每省选取3个区县,共15个区县的乡镇卫生院和社区卫生服务中心(站)的卫生人员(6 439名)进行问卷调查与访谈, 对调查数据进行描述并对医防融合工作参与情况与认知现状进行检验。结果 从事公共卫生工作的958名卫生人员中,仅有292人(30.5%)同时参与公共卫生服务与医疗服务,有615人(64.2%)只参与公共卫生服务; 51.7%的公共卫生工作人员以独立公共卫生服务的方式参与基本卫生服务。从事公共卫生工作的卫生人员主要以护理学和临床医学专业为主,仅15.6%的人员具有预防医学专业背景。从事临床医疗工作的1 964名人员中,1 464人(74.5%)医疗服务与公卫服务均参与,但对基本公共卫生服务的投入时间相对较少。不同岗位的卫生人员参与医防工作的情况不同(=2 208.874,P<0.001)。结论 基层临床医疗工作与公共卫生工作机制相对独立。公共卫生工作人员因缺乏疾病诊断治疗能力或无处方权而不能很好地参与到临床医疗工作中; 临床医疗工作人员因缺乏公共卫生知识和技能对公共卫生服务的参与受限。 建议整合医防融合服务机制,打造基层整合型服务; 培养基层医防复合型人才,加大全科医生培养力度。  相似文献   
54.
55.
ObjectivesIncreasing recognition of the adverse events older adults experience in post-acute care in skilled nursing facilities (SNFs) has led to multiple efforts to improve care integration between hospitals and SNFs. We sought to measure current care integration activities between hospitals and SNFs.DesignCross-sectional survey.Setting and ParticipantsA total of 500 randomly selected Medicare-certified SNFs in the United States in 2019. The survey inquired about 12 care integration activities with the 2 highest volume referring hospitals for each SNF.MethodsWe collapsed survey responses into 5 categories of integration based on high correlations between the individual measures. These were: (1) formal integration (co-location or co-ownership); (2) informal integration (eg, formal affiliation, participation in SNF collaborative, shared pay for performance, or clinical leadership meetings between hospital and SNF); (3) shared quality/safety activities (eg, initiatives to improve medication safety or reduce hospital admission); (4) shared care coordinators; and/or (5) shared supervising clinicians. We then conducted multivariate regressions to examine associations between different care integration activities and hospital/SNF characteristics.ResultsOur overall response rate was 53.0%, including 265 SNFs that represented 487 SNF-hospital pairs. Informal integration was most common (in 53.3% of pairs), whereas shared clinicians (43.0%), care coordinators (36.5%), shared quality/safety activities (35.1%), and formal integration (7.4%) were present in a minority. Hospital-SNF pairs had lower odds of being formally integrated if the SNF was for-profit compared with not-for-profit [odds ratio (OR) 0.11, 95% confidence interval (CI) 0.03–0.42, adjusted P = .04)] and higher odds of sharing quality improvement activities in metropolitan rather than rural areas (OR 4.06, 95% CI 1.80–9.17, adjusted P = .02) and in the Midwest compared with West (OR 2.95, 95% CI 1.44–6.06, adjusted P = .049).Conclusions and ImplicationsThese findings raise important questions about what is driving variability in hospital-SNF integration activities, and which activities may be most effective for improving transitional care outcomes.  相似文献   
56.
目的探讨被转入的人SR-AI基因的整合与复制情况及其对小鼠繁育的影响.方法采用类似系祖建系的方法,对人SR-AI转基因小鼠的2、3534、3560、3638、3639五个系列进行了繁育.并用PCR和Southermblot的方法,检测五个系列小鼠尾组织的DNA样品.结果五个系列小鼠共产仔431只,PCR检出阳性小鼠178只,阳性率为41.2%.在3639系的F1、F2、F3代及纯合子转基因鼠中PCR阳性率分别为47.8%、71.3%、75%和100%.结论人SR-AI基因在子代鼠中能稳定遗传,且对生殖和发育无明显影响.  相似文献   
57.
就如何提高中医的临床疗效及临床疗效在中医学发展中的重要作用等采访了金实教授,金实教授认为,注重整体观念,正确辨证施治,确保临床疗效是中医学是以延续的保证;辨证与辨互参是提高临床疗效,促进中医学发展的重要方法;中西医结合方法给传统中医学注入了新的活力,明显地提高了临床疗效,现代自然科学的渗透使中医疗效的评判走向客观和微观化,促进了中医学现现代化发展的进程。  相似文献   
58.
ObjectiveBuilding on the original taxonomy of hospital‐based health systems from 20 years ago, we develop a new taxonomy to inform emerging public policy and practice developments.Data SourcesThe 2016 American Hospital Association''s (AHA) Annual Survey; the 2016 IQVIA Healthcare Organizations and Systems (HCOS) database; and the 2017‐2018 National Survey of Healthcare Organizations and Systems (NSHOS).Study DesignCluster analysis of the 2016 AHA Annual Survey data to derive measures of differentiation, centralization, and integration to create categories or types of hospital‐based health systems.Data CollectionPrincipal components factor analysis with varimax rotation generating the factors used in the cluster algorithms.Principal FindingsAmong the four cluster types, 54% (N = 202) of systems are decentralized (−0.35) and relatively less differentiated (−0.37); 23% of systems (N = 85) are highly differentiated (1.28) but relatively decentralized (−0.29); 15% (N = 57) are highly centralized (2.04) and highly differentiated (0.65); and approximately 9 percent (N = 33) are least differentiated (−1.35) and most decentralized (−0.64). Despite differences in calculation, the Highly Centralized, Highly Differentiated System Cluster and the Undifferentiated, Decentralized System Cluster were similar to those identified 20 years ago. The other two system clusters contained similarities as well as differences from those 20 years ago. Overall, 82 percent of the systems remain relatively decentralized suggesting they operate largely as holding companies allowing autonomy to individual hospitals operating within the system.ConclusionsThe new taxonomy of hospital‐based health systems bears similarities as well as differences from 20 years ago. Important applications of the taxonomy for addressing current challenges facing the healthcare system, such as the transition to value‐based payment models, continued consolidation, and the growing importance of the social determinants of health, are highlighted.  相似文献   
59.
The past decade has witnessed a new wave of hospital-physician integration, with the fraction of hospitals owning any office-based physician practice increasing from 28% in 2009 to 53% in 2015 nationwide. We offer one of the first hospital-level longitudinal analyses in examining how hospital-physician integration affects hospital prices in the modern healthcare environment. We find a robust 3–5% increase in hospital prices following integration. There is little indication that hospital quality is commensurately higher or that patient mix has changed following integration. Our supplementary analyses point to stronger bargaining leverage and foreclosure of rival hospitals as potential mechanisms for the estimated price effects.  相似文献   
60.
Summary The results of this study show that the different receptive fields of multisensory neurons in the cortex of the cat anterior ectosylvian sulcus (AES) were in spatial register, and it is this register that determined the manner in which these neurons integrated multiple sensory stimuli. The functional properties of multisensory neurons in AES cortex bore fundamental similarities to those in other cortical and subcortical structures. These constancies in the principles of multisensory integration are likely to provide a basis for spatial coherence in information processing throughout the nervous system.  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