Results 11 to 20 of about 88,727 (162)
Jianzhu Gangjiegou Jinzhan, 2010 畸变屈曲是冷弯薄壁卷边槽钢截面的一种主要屈曲模式,分析时应考虑截面板组间的相关作用,腹板提供给翼缘的约束作用是影响构件畸变屈曲性能的主要因素。腹板开孔后将导致应力的重分布,影响板件间的相关作用。本文在分析的过程中,以无孔构件的畸变屈曲理论为基础,应用ANSYS有限元软件对腹板开孔的冷弯薄壁卷边槽钢构件在轴心受压情况下的畸变屈曲性能进行了分析研究。讨论了孔洞横向间距、纵向间距、孔宽、孔型等参数对畸变屈曲性能的影响。除此之外,还分析了截面板件尺寸大小对截面畸变屈曲性能的影响。最后,根据有限元参数分析结果 ...
郑敦, 余绍锋
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单绒毛膜双羊膜囊双胎心脏畸形拷贝数变异分布的差异 [PDF]
Zhongshan Daxue xuebao. Yixue kexue ban, 2018 【目的】分析拷贝数变异在单绒毛膜双羊膜囊双胎（MCDA）合并先天性心脏病病例中分布的差异。 【方法】MCDA双胎合并先心病病例接受胎儿染色体核型检查和染色体微阵列检测，采用Affymetrix CytoScan 高 分辨微阵列平台。【结果】从2010年至2016年，114例MCDA双胎合并心脏畸形且类型不一致，4例合并心脏畸形 且类型一致。114例MCDA双胎合并心脏畸形且类型不一致病例中，72例接受胎儿染色体核型检查。胎儿染色 体核型检测结果如下：5例双胎核型不一致，1例双胎均是47, XYY，
彭软, 谢红宁, 林美芳, 郑菊
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SARS‐CoV‐2 infection as cause of in‐utero fetal death: regional multicenter cohort study
Ultrasound in Obstetrics &Gynecology, Volume 62, Issue 6, Page 867-874, December 2023., 2023 ABSTRACT Objective Placental infection with severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) can lead to placental insufficiency and in‐utero fetal death (IUFD). The objective of this study was to confirm and quantify the extent to which fetoplacental infection with SARS‐CoV‐2 is a cause of fetal death.
M. Nkobetchou +9 more
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Ultrasound in Obstetrics &Gynecology, Volume 60, Issue 4, Page 487-493, October 2022., 2022 ABSTRACT Objective To investigate the diagnostic yield of clinical whole‐genome sequencing (WGS) in prenatally diagnosed non‐immune hydrops fetalis (NIHF). Methods This was a retrospective study of 23 fetuses with prenatally diagnosed NIHF, negative for trisomies and copy‐number variants, referred for analysis by WGS with an in‐silico panel of 281 ...
E. Westenius +4 more
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Ultrasound in Obstetrics &Gynecology, Volume 59, Issue 6, Page 715-722, June 2022., 2022 ABSTRACT Objective To determine the diagnostic yield of exome sequencing (ES) above that of chromosomal microarray analysis (CMA) or karyotyping in fetuses with multisystem structural anomalies (at least two major anomalies in different anatomical systems). Method This was a systematic review conducted in accordance with PRISMA guidelines.
M. Pauta +2 more
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Brachycephaly in French bulldogs and pugs is associated with narrow ear canals
Veterinary Dermatology, Volume 33, Issue 3, Page 214-e60, June 2022., 2022 Background Brachycephalic dog breeds have multiple skull malformations which may lead to anatomical changes in the external auditory canal. It is our frequent observation that in the otoscopic examination of the external ear in these breeds we are unable to visualise the tympanic membrane as a consequence of extreme narrowing of the proximal ear canal.
Tanja Töpfer +3 more
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Developmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019 目的 本国际临床指南由欧洲残疾儿童学会（the European Academy of Childhood Disability，EACD）牵头制定，旨在解决发育性协调障碍（developmental coordination disorder，DCD）的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题，通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础，以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类，最终转化为指南建议。并由国际 ...
Jing Hua +6 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The electrocatalytic water splitting technique was widely taken for hydrogen evolution, due to its cost‐effectiveness and environmental friendliness. The design of electrode material as electrocatalysts play a key role in achieving high efficiency.
Yaling Zhu +5 more
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ABCA12 Frameshift Deletion in Domestic Cats With Ichthyosis Fetalis
Veterinary Dermatology, Volume 37, Issue 3, Page 365-374, June 2026.ABSTRACT Background Ichthyosis fetalis (IF), also known as harlequin ichthyosis, is a rare and often fatal autosomal recessive congenital skin disorder. It is characterized by thickened, hard skin plaques and deep skin fissures that limit mobility and cause malformations of the eyes, lips and ears.
Jeanna M. Blake +2 more
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