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ObjectiveSystematic reviews (SRs) are the cornerstone of evidence-based medicine. In this study, we evaluated the effectiveness of using two computer screens on the efficiency of conducting SRs.Study Design and SettingA cohort of reviewers before and after using dual monitors were compared with a control group that did not use dual monitors. The outcomes were time spent for abstract screening, full-text screening and data extraction, and inter-rater agreement. We adopted multivariate difference-in-differences linear regression models.ResultsA total of 60 SRs conducted by 54 reviewers were included in this analysis. We found a significant reduction of 23.81 minutes per article in data extraction in the intervention group relative to the control group (95% confidence interval: −46.03, −1.58, P = 0.04), which was a 36.85% reduction in time. There was no significant difference in time spent on abstract screening, full-text screening, or inter-rater agreement between the two groups.ConclusionUsing dual monitors when conducting SRs is associated with significant reduction of time spent on data extraction. No significant difference was observed on time spent on abstract screening or full-text screening. Using dual monitors is one strategy that may improve the efficiency of conducting SRs.  相似文献   
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《Sleep medicine》2014,15(7):789-797
ObjectiveThis study investigated reliability, validity, and clinical relevance of the Adolescent Sleep Hygiene Scale (ASHS) in Dutch adolescents.MethodsThe Dutch translation of the ASHS was administered to 186 normal-sleeping adolescents and 112 adolescents with insomnia. Their sleep variables were measured using sleep logs and questionnaires. From the insomnia group, scores were also obtained after six weeks of cognitive behavioral therapy for insomnia (n = 58) or waiting list (n = 22).ResultsThe full scale of the ASHS had acceptable internal consistency. The results showed moderate to strong correlations of the ASHS (domains) with sleep quality, sleep duration and chronic sleep reduction. Furthermore, the Dutch ASHS was able to discriminate between normal sleepers and adolescents with insomnia, and scores of adolescents with insomnia improved after treatment.ConclusionsThese findings confirm the importance of sleep hygiene in adolescent sleep, and contribute to the validity of the ASHS and its applicability in research and clinical practice.  相似文献   
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The validity of the Face Stimulus Assessment (FSA) (Betts, 2003) as a tool for screening children with attention-deficit/hyperactivity disorder (ADHD) was investigated. The study subjects were 193 children from first to sixth graders in an elementary school located in Busan city, South Korea. Study analysis using the FSA drawings and Korean-ADHD rating scale (K-ARS) revealed the following results. First, in order to examine the reliability of the FSA assessment items, reliability was verified based on internal consistency while inter- and intra-rater consistencies were calculated. The reliability coefficient of assessment items for each FSA drawing was Cronbach's α = .778, .835 and .831 for the FSA drawing #1, #2 and #3, respectively. Inter-rater consistency of three persons was r = .801–1.00 while intra-rater consistency was r = .830–1.00. Second, in order to investigate the validity of the FSA as a screening tool for children with ADHD, cross tabulation and discriminant analyses were conducted to examine differences in the characteristics of the responses to the FSA drawings between normal children and children with ADHD. According to the analysis results, the common items that showed differences in the FSA drawing #1, #2 and #3 included color fit, logic, realism, developmental level, details of objects and environment, line quality, perseveration, form, and emotional tone. In other words, compared to normal children, Children with ADHD showed a higher tendency to be unable to use colors properly, were illogical and drew a simple face in the lower level of development. In many cases, the subjects drew a face with insufficient detail in the object and the environment and used shaky or wavering lines with repetitive coloring. In regard to the drawing theme, children with ADHD were more inclined to draw something other than a portrait and something that expressed negative emotions such as sorrow, fright, grotesqueness, fear, and anxiety. Among the aforementioned items of FSA assessment, line quality had the highest explanatory power. Discriminant power, which is the ability to predict normal children and children with ADHD based on the assessment items of the FSA drawings, was in the range of 79–81.3%. The drawing #3 showed the highest value of 81.3%.  相似文献   
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SF-36量表应用于晚期血吸虫病患者的信度和效度分析   总被引:4,自引:2,他引:2  
目的评价SF-36量表应用于晚期血吸虫病(晚血)患者的信度和效度,为血吸虫病防治工作者选择适宜的健康测量工具提供科学依据。方法在湖南省汉寿县及湖北省江陵县,以SF-36量表中文版作为生命质量测评工具对晚血患者进行入户调查,评价其应用于晚血患者的信度和效度。结果SF-36量表在晚血患者生命质量测评中具有良好的分半信度(分半信度系数为0.95)和内部一致性信度(8个维度Cronbachα系数范围为0.86~0.88);效度评价显示集合效度(集合效度试验成功率为97.14%)和区分效度(区分效度试验成功率为87.86%)良好,效标效度尚好(与EQ-5D+C量表患者VAS生命质量自评得分之间的相关系数为0.70),但结构效度欠佳(仅2个维度在因子负荷上与理论模型完全一致)。除生理职能和情感职能地板效应分别高达50.31%和48.16%外,其余维度地板效应和天花板效应均不显著。结论SF-36适用于晚血患者生命质量评价,但尚需根据实际情况对部分条目进行完善。  相似文献   
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脑静脉窦血栓形成患者预后量表的有效性检验   总被引:1,自引:1,他引:0  
目的调查脑静脉窦血栓形成(cerebral venous thrombosis,CVT)患者的近期预后,验证CVT预后量表的有效性。方法在单中心观察性研究中,连续性入选2000年5月至2010年5月北京天坛医院CVT患者,进行回顾性分析。通过病例报告表收集患者的人口学信息,症状和体征,诊断方法,血栓的部位等。患者在住院后72 h内完成颅脑磁共振(magnetic resonance imaging,MPI)。评定者依据影像学结果结合基线情况(住院当时症状体征)并完成CVT预后量表评价。随访在患者出院前1 d完成。结局通过改良的Rankin量表(modified Rankin Scale,mRS)评定,mRS≤2分定义为神经功能结局良好。计算CVT的敏感性、特异性、阳性预测值、阴性预测值、阳性似然比和阴性似然比,来验证CVT预后量表的有效性。应用受试者工作曲线(Receiver operating characteristic,ROG)分析量表预测的准确性。结果 168名住院CVT患者纳入研究。165名患者在发病17 d(8~45 d)完成量表评价。随访时,130名患者(78.8%)预后良好(mRS≤2),CVT预后评分选择≥3分为分界点,量表预测的敏感性、特异性和ROC曲线下面积分别为0.75[95%可信区间(confidence interval,CI)0.67~0.82],0.38(95%CI0.22~0.55)和0.56(95%CI 0.45~0.68,P0.05);当选择≥4分为分界点时,敏感性、特异性和ROc曲线下面积分别为0.85(95%CI 0.78~0.91),特异性0.35(95%CI 0.19~0.51)和0.60(95%CI0.49~0.71,P=0.0740.05)。结论 CVT患者出院时预后相对良好,仍有部分患者预后不良(21.2%)。在本研究中,CVT预后量表准确性不理想,需要进一步前瞻性验证。  相似文献   
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目的:翻译并修订人际反应指数量表(IRI),考察其信度和效度。方法:对419名大学生和62名犯人进行调查。结果:验证性因素分析表明,C-IRI四因素结构拟合较好,各分量表的建构信度在0.59~0.75之间,重测信度在0.59~0.78之间。各分量表与效标量表的相关分析结果表明C-IRI具有良好的效标关联效度,犯人被试的C-IRI量表得分显著低于对照组中大学生被试的量表得分(t=-2.59,P0.05)。结论:C-IRI具有良好的信度和效度,可以用于测量成人的共情水平。  相似文献   
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同性恋态度量表的构建及其信度、效度检验   总被引:5,自引:1,他引:4  
目的:构建适合中国社会文化背景的同性恋态度量表并检验其信效度。方法:根据同性恋态度相关研究的性别差异以及态度的三维模型,从男、女两个层面,认知、情感、行为三个维度来构建同性恋态度量表;整群选取长沙某大学学生353名进行测试,通过4种条目筛选方法进行条目筛选。应用新编制的同性恋态度量表在404名大学生以及533名社区居民中进行了信度和效度检验。对其中193名学生,在初测10天后进行了重测。结果:同性恋态度量表共20个条目;该量表10天后重测信度为0.959,Cronbach’sα系数为0.898,分半信度为0.912。因子分析提取3个公因子,包括道德评判、情感反应以及社会交往。结论:同性恋态度量表信度和效度可接受,可用于同性恋态度研究。  相似文献   
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目的 评价疾病家庭负担量表(family burden scale of diseases,FBS)应用于晚期血吸虫病(晚血)的信度和效度,为晚血家庭负担评价工具的选择提供科学依据.方法 在湖南省汉寿县及湖北省江陵县,以FBS作为测评工具对晚血患者家属进行入户调查,评价其应用于晚血的信度和效度.结果共调查家属318名,...  相似文献   
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