Results 31 to 40 of about 916,452 (164)
Zhongguo shiyan zhenduanxue, 2011 目的分析健康成人血清ALP活性,探讨ALP水平在成人性别和年龄的分布规律。方法随机选择2008年来吉大一院健康体检各项指标正常的健康人19416例,对其血清ALP活性进行回顾性统计分析。结果 21-50岁男性ALP值显著高于同年龄组女性 ...
吉利, 连丽丽, 孙淑艳, 孙小慧
doaj
Ultrasound in Obstetrics &Gynecology, Volume 67, Issue 1, Page 79-88, January 2026.ABSTRACT Objective To evaluate the proportion of optimal assessments of endometrial thickness (ET) achieved by transvaginal ultrasound (TVS) compared with a multimodal (MM) sonographic approach in women with abnormal uterine bleeding (AUB). Methods This prospective observational study was a subset of the EPI‐SURE study conducted between June and ...
S. Nijjar +5 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2007 【目的】探讨正常人晶状体随年龄的增长对跟前段轴向空间结构的影响。【方法】采用跟前段光学相干断层扫描仪（AS—OCT）测量正常人105例（105只眼）前房深度（ACD）和晶状体厚度（LT）；比较它们性别间的差异，采用直线相关与回归分析方法分析年龄与ACD、LT的相关关系。【结果】正常人ACD、LT的平均值分别为：2．97（S=0．32）mm、4．21（S=0．43）mm。女性ACD为2.87（S=0．33）mm比男性3．07（S=0．29）mm浅（P=0．001）；LT性别间差异无统计学意义（P=0 ...
曾阳发 +5 more
doaj
Deep quantile regression for growth and maturation reaction norms
Methods in Ecology and Evolution, Volume 17, Issue 1, Page 111-124, January 2026.Abstract Understanding species' growth and maturation responses to anthropogenic and environmental pressures is crucial for tracking demographic shifts, phenotypic change and ensuring population sustainability. Traditional regression methods often focus on modelling the conditional mean of life‐history traits, potentially overlooking heterogeneity in ...
Guankui Liu +4 more
wiley +1 more source
Regulation &Governance, Volume 20, Issue 1, Page 35-63, January 2026.ABSTRACT Existing literature largely agrees that authoritarian regimes establish channels for political participation to gather valuable information on citizens' anti‐regime sentiments and policy preferences and to supervise lower‐level bureaucrats and firms.
Anton Bogs
wiley +1 more source
超声弹性成像技术评价2型糖尿病患者颈动脉和足背动脉血管壁弹性
Zhongguo shiyan zhenduanxue, 2014 目的利用超声弹性成像技术评价2型糖尿病（T2DM）患者颈动脉、足背动脉血管壁弹性的变化及与年龄的关系。方法研究对象分为T2DM组和对照组,各78人,使用高频线阵探头分别测量二组颈动脉、足背动脉内径（D）,并用超声弹性成像技术对血管壁弹性进行评估,计算血管内血液与血管壁的应变率比值（B/A）。然后将二组的血管内径、B/A值进行比较分析。同时把T2DM组、对照组按年龄分为青年亚组,中年亚组及老年亚组,比较不同年龄段B/A值与年龄的关系。结果两组间颈动脉、足背动脉血管内径相似,差异无统计学意义（P>0.05）;
李殿秋, 王辉, 崔婷婷
doaj
Review of Policy Research, Volume 43, Issue 1, January 2026.Abstract Early marriage—defined as marriage before age 18—has been shown to constitute a major obstacle to women's development with negative impacts on their health, education, and economic development. For several decades, the issue has been a major topic of global policy discussions with organizations like the United Nations advocating for global ...
Ene Ikpebe
wiley +1 more source
红尾沙鼠(Meriones libycus)的年龄鉴定及种群年龄组成
, 2007 选用2004年4~10月在新疆吐鲁番盆地采集的红尾沙鼠标本,用胴体重为年龄划分指标,将红尾沙鼠划分为5个年龄组。Ⅰ.幼体组:雌性120 g,雄性>135 g。同时探讨了胴体重与体重、体长及尾长之间的关系。结果显示,体重与胴体重之间存在最为显著的线性关系,且各组间体重交叉不大,故在野外当技术条件受到限制不能称量胴体重时,体重也可作为划分红尾沙鼠相对年龄的指标。种群年龄结构的季节变化特征为:春季Ⅲ,Ⅴ组占优势;夏季和秋初Ⅰ,Ⅱ组数量明显增加,秋季除老体组外 ...
李俊 +1 more
core
Public perception of Ghana's Free Senior High School policy: A north–south comparative analysis
Review of Policy Research, Volume 43, Issue 1, January 2026.Abstract Ghana's Free Senior High School (SHS) policy, implemented in 2017, aims to increase access to secondary education, promote equity, enhance educational outcomes, and foster human capital development. This study examines public perception of the Free SHS policy, focusing on the variations between the northern and southern regions of Ghana and ...
Michael K. Dzordzormenyoh +3 more
wiley +1 more source
, 1996 采用ＮＥＯ—ＦＦＩ简式对５９３名２０至９４岁成年人进行了个性特征的年龄差异研究。被试分为青年（２０～３９岁）、中年（４０～５９岁）、老年（６０～７４岁）和老老年（７５岁及以上）４组，文化程度均初中以上。结果表明：问卷表再测信度合格，自评与亲友评定间有显著相关；除开放性特征（Ｏ）随增龄下降，即青年组较年长三组更加开放外，神经质（Ｎ）、内外向（Ｅ）、和谐性（Ａ）和认真负责（Ｃ）量表分均无明显年龄差异；两性个性特点比较，女性Ｎ分及Ａ分均明显高于男性；除年龄和性别因素外，健康善对Ｎ、Ｅ、Ｃ分，文化程度对Ｎ和Ｏ分，
孙长华 +3 more
core