Results 61 to 70 of about 13,907 (228)
ABSTRACT Objective To investigate whether combining abnormal morphological features observed on ultrasound in live pregnancies that ended in a first‐trimester miscarriage can predict an abnormal karyotype. Methods This retrospective observational cohort study was conducted at the early‐pregnancy assessment unit at University College London Hospital ...
T. Setty +5 more
wiley +1 more source
多种动脉粥样硬化细胞因子与冠状动脉狭窄的相关性方程的建立及临床意义
目的探讨多种动脉粥样硬化细胞因子与冠状动脉粥样硬化性狭窄程度的相关性,以及可能的回归方程模型。方法将198例行冠状动脉造影的患者按造影结果 Gensini积分分为冠脉狭窄轻度组(0-12分,64人)、中度组(13-34分,54人)、重度组(>34分,32人)和冠脉正常对照组48人;采用单因素方差分析探讨冠脉狭窄组与对照组及不同狭窄组间临床基线资料、一般生化指标和细胞因子的差异,采用二元或多因素Logistic逐步回归方法探讨冠状动脉粥样硬化性狭窄与多种细胞因子的相关性,及建立回归方程模型 ...
张春阳, 黄山, 刘志琴
doaj
Study on the Undergraduate Majors Setting of HigherEducation Institutions under the Background of Massification [PDF]
当下,我国高等教育已进入大众化阶段,但一个不容否认的事实是,在最初建构高等教育大众化的制度安排中,高等教育大众化的进程就是扩大适龄人口接受高等教育的机会似乎是一种普遍的理解和预期。因而,在我国高等教育大众化生成与发展的十年进程中,尽管众多普通高等院校的新生录取人数、在校生人数和毕业生人数已经翻了几番,但在普通本科专业的设置、普通本科专业设置权的分配、普通高等学校本科专业的选择等方面仍然延续着精英教育阶段的发展路径而没有多少变化。高等教育面临的诸如专业重复设置、院校间同质化发展 ...
唐卫民
core
Factors That Influenced Coping With COVID‐19 During the Pandemic in Botswana
ABSTRACT This paper forms part of the broader Global South study, Personal and Family Coping with COVID‐19 in the Global South, which examines psychosocial and behavioral responses to the COVID‐19 pandemic. In Sub‐Saharan Africa, the pandemic posed significant psychological, social, and economic challenges, with important implications for preparedness ...
Magen Mhaka‐Mutepfa +3 more
wiley +1 more source
Empirical research on cultivating athletic talents with combination of sports training and education in Xiamen [PDF]
运用文献资料法、访谈法、实地调查法、数理统计法、逻辑分析法等研究方法,以厦门市4所招收高水平运动员的高校、5所市级训练单位、6所区业余体校、34所体育传统项目学校等为研究对象,从“体教结合”的基本理论研究出发,论述了竞技运动人才培养体系的形成过程,分别对教育系统和体育系统各办的“体教结合”进行了效果分析和归因分析,并提出了相应的措施。 研究的主要结论是: 1.在我国体育发展过程中,“体教结合”分别由基层体育部门、中层体育部门、教育部门提出,但从提出“体教结合”的历史背景来看 ...
闫方涛
core
Institutional Arrangements and Procurement Procedures for Post‐War Reconstruction in Yemen
ABSTRACT The reconstruction of Europe and Japan after World War II is often credited to US political will and financial aid. However, differing outcomes suggest that other factors played a crucial role. Factors such as security, a functioning government, pre‐war development levels, and wartime destruction played crucial roles in determining the ...
Sumaia A. Al‐Kohlani +1 more
wiley +1 more source
血清PCT、LDH及NLR在老年重症感染肺炎早期诊断及预后评估中的价值
目的探究血清降钙素原(PCT)、乳酸脱氢酶(LDH)及中性粒细胞和淋巴细胞比值(NLR)对老年重症肺炎(SP)的早期诊断及预后评估价值。方法选取老年SP患者110例(重症组)、老年普通肺炎110例(对照组),于入院24h内完成PCT、LDH、NLR检测,比较两组PCT、LDH、NLR水平,绘制受试者工作特征曲线(ROC)分析PCT、LDH及NLR对老年SP早期诊断价值;患者均按照指南行规范治疗,随访28d,评价生存状态,并采用单因素分析、多因素logistic回归分析探究影响预后危险因素 ...
田洪梅 +6 more
doaj
Policymaking for Emigrants in Latin America and the Caribbean: A Mixed‐Methods Study
ABSTRACT While scholars have identified models of political emigrant policies across countries, we still lack an understanding of how these models come about and persist. Using a sequential mixed‐methods approach—including quantitative analysis of policy mixes in 22 Latin American and Caribbean countries and a comparative case study of Colombia and ...
Luicy Pedroza, Pau Palop‐García
wiley +1 more source
AKT1基因多态性与中国汉族人群双相情感障碍遗传易感性的关系探讨
目的探讨蛋白激酶B1(AKT1)基因多态性与中国汉族人群双相情感障碍(BPD)遗传易感性的关系。方法选取2018年10月-2020年10月阜阳市第三人民医院收治的110例BPD患者,设为BPD组;另选取同期进行体检的110例健康受试者,设为健康组。采用聚合酶链反应-限制性片段长度多态性法(PCR-RFLP)分析外周血AKT1基因位点rs2494732、rs3001371、rs3803300、rs2498799、rs3730358单核苷酸多态性(SNP),比较BPD组与健康组位点基因型分布及等位基因频率 ...
闻庆云, 周香云, 吴远雄
doaj
当前我国农村公共体育资源配置并不理想,存在资源配置不到位、不均衡和资源浪费等诸多问题。在此基础上,就归因分析及其优化路径进行了探讨和研究,提出:重塑科学政绩观,重构政绩考核指标体系;根据受益原则,推行农村公共体育资源配置成本的分担与补偿机制;改变错误认知,"代农民立言",重构农村公共体育资源配置利益表达机制;提高管理水平,完善监督机制,保证农村公共体育资源配置的使用效益;关注长远效益、社会收益 ...
何元春
core

