Results 31 to 40 of about 25,148 (152)
Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 1, Page 41-50, July 2025.ABSTRACT Objectives Monochorionic diamniotic (MCDA) twins with selective fetal growth restriction (sFGR) and either continuous (cAREDF) or intermittent (iAREDF) absent or reversed end‐diastolic flow in the umbilical artery face significant fetal and neonatal risks.
A. T. R. Noll +19 more
wiley +1 more source
Dianci bileiqi, 2010 采用Norton蠕变损伤律建立了复合绝缘子的蠕变损伤演化方程,研究了工作载荷对损伤演化的影响规律,给出了不同工作载荷下复合绝缘子损伤与轴向变形之间的对应关系。研究发现,在损伤发生的最初阶段,损伤发展的速度非常缓慢,当损伤超过0.2以后,损伤演化的速度明显加快,绝缘子很快发生破坏。利用复合绝缘子轴向变形与损伤之间的对应关系,可以借助传感器监测运行过程中的复合绝缘子表面轴向变形的变化,从而确定绝缘子的损伤程度。
张晓明, 杨新华
doaj
Cyclooxygenase-2 Mediates Cadmium-induced Kidney Injury via Endoplasmic Reticulum Stress [PDF]
, 2016 目的：镉及其化合物对哺乳动物的肝、肾、骨骼等脏器具有毒性损害作用。环氧合酶-2(cyclooxygenase-2，COX-2)是花生四烯酸代谢形成前列腺素家族(prostaglandins，PGs)成员通路中的关键限速酶，其在调控细胞增殖、转移、凋亡和血管形成中发挥重要作用。已有报道镉经由ROS诱导大鼠肾细胞中COX-2表达升高而引起肾损伤，同时也有报道自噬在镉诱导的肾损伤中扮演重要的作用，但是COX-2和自噬在镉暴露诱导肾毒性损伤中的作用及其机制尚待阐明。本研究拟探讨COX ...
骆冰
core
Racial and ethnic disparities in obstetric anal sphincter injury: cross‐sectional study in the USA
Ultrasound in Obstetrics &Gynecology, Volume 65, Issue 6, Page 778-789, June 2025.ABSTRACT Objectives Racial disparities in obstetric anal sphincter injury (OASI) are poorly understood; their investigation by parity, obstetric history and mode of delivery may provide insight into which individuals are at the greatest risk for OASI. We aimed to quantify the association of race and ethnicity with OASI, stratified by parity, obstetric ...
M. Rajasingham +5 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2012 脊髓损伤是指由于各种原因引起的脊髓结构功能的损害,造成损伤平面以下运动、感觉、自主神经功能障碍,部分高位脊髓损伤者同时伴有呼吸功能障碍。呼吸功能的损害程度根据脊髓损伤位置的高低和损伤程度的轻重有所不同。目前有关脊髓损伤水平及程度与肺功能损害的关系报道较少。为进一步明确损伤水平和严重程度与肺功能的关系 ...
朱颖, 史文博
doaj
The effects of Tao-Hong-Si-Wu on hepatic necroinflammatory activity and fibrosis in murine model of chronic liver disease [PDF]
, 2016 背景：桃红四物汤原名加味四物汤，载于《医垒元戎》，录自《玉机微义》，是在四物汤的基础上加桃仁、红花而成，是活血养血之代表方。桃红四物汤在临床上应用广泛，诸多研究表明桃红四物汤对多种慢性肝病有一定的治疗作用。慢性肝损伤伴肝纤维化发展过程中存在明显的病理性血管生成与重构，阻碍了肝纤维化的逆转与恢复。通过桃红四物汤对病理性血管生成作用的研究，发现部分活血化瘀中药具有抑制病理性血管生成的作用，抗病理性血管生成可能是活血化瘀药的现代药理作用之一 ...
史萌萌
core
Infant Mental Health Journal: Infancy and Early Childhood, Volume 46, Issue 3, Page 247-259, May 2025.Abstract Black women are more likely to experience traumatic birthing events, more likely to experience perinatal depression, and less likely to receive mental health treatment than women of other racial and ethnic backgrounds, and yet largely overlooked in perinatal mental health research.
Helenia Quince +3 more
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2023 基于支持向量机的结构损伤识别方法建立在训练和测试数据同概率分布的假设上，必须对每个结构分别收集训练数据和标签并训练模型以识别损伤。损伤结构的训练数据和标签难以收集，导致支持向量机方法在结构损伤识别中难以实施。提出一种基于领域自适应支持向量机的跨域损伤识别方法，将在有损伤标签结构（源结构）上训练的支持向量机推广到无损伤标签结构（目标结构）的损伤识别中。该方法首先提取结构的多阶固有频率变化率作为损伤特征构建训练数据；然后，推导最小化边缘分布差异与最小化联合分布差异的迁移学习方法 ...
李佐强 +6 more
doaj
The preliminary study on the dyslipidemia in rats with autoimmune myocarditis [PDF]
, 2016 目的：心肌炎是心肌间质中局限或弥漫性的急性或慢性炎症，目前关于心肌炎中血脂代谢的相关研究较少，本课题通过建立大鼠实验性自身免疫性心肌炎模型（EAM模型），初步探讨心肌炎中血脂代谢紊乱可能的分子调节机制。 方法：利用猪心肌肌球蛋白和完全弗氏佐剂充分混合后，于第0天皮下注射建立大鼠EAM模型，留取心脏标本行组织切片H&E染色、心脏体重比、RealtimePCR、Westernblot评估心肌组织炎症程度；GPO-PAP法血脂试剂盒检测血脂水平；Filipin染色检测心肌组织内胆固醇水平 ...
戴东黎
core
Journal of Critical Infrastructure Policy, Volume 6, Issue 2, Fall/Winter 2025.ABSTRACT Recent advances in interferometric synthetic aperture radar (InSAR) provide millimeter‐scale resolution monitoring of ground deformation in urban coastal environments, repeatedly highlighting the vulnerability of regions like South Florida.
Jean‐Pierre Bardet
wiley +1 more source