Results 41 to 50 of about 6,659 (157)

妊娠合并肾移植术后的妊娠结局分析

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2021
目的探讨妊娠合并肾移植术后的患者的妊娠结局。方法回顾性分析2015年1月至2021年5月在中山大学附属第一医院住院分娩的12例妊娠合并肾移植术后的患者的临床资料,并随访妊娠结局。结果12例肾移植术后患者中,3例足月分娩,9例未足月分娩。患者平均分娩年龄(32.3±4.5)岁,距离肾移植平均时间为(63.3±34.7)月,平均分娩孕周为(34.8±2.3)周。所有患者孕期的免疫抑制方案为他克莫司+泼尼松+硫唑嘌呤,孕期监测他克莫司血药浓度均在有效范围,其中6例患者孕早期吗替麦考酚酯更换为硫唑嘌呤 ...
祝彩霞   +4 more
doaj  

Benefits and complications of fetal and postnatal surgery for open spina bifida: systematic review and proportional meta‐analysis

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 2, Page 135-146, August 2025.
ABSTRACT Objective To derive pooled estimates of maternal, fetal and pediatric outcomes up to the age of 30 months in patients undergoing pre‐ or postnatal surgery for open spina bifida (OSB). Methods A systematic search was conducted in MEDLINE, PubMed (non‐MEDLINE records), Embase, Web of Science, ClinicalTrials.gov, Cochrane Central Register of ...
Y. Kunpalin   +10 more
wiley   +1 more source

GIS局部放电与等效脉冲注入过程中特高频信号一致性研究

open access: yesGaoya dianqi, 2013
笔者对GIS局部放电与等效脉冲注入过程中的特高频信号一致性进行了试验研究。通过测量等效脉冲注入和局部放电信号的电磁波波形,发现传感器耦合到的特高频信号波形相似;在相同试验条件下,局部放电信号与等效脉冲注入产生的特高频信号衰减规律和传播范围相同。试验结果表明,局部放电与等效脉冲注入过程中产生的特高频信号一致性很好。在此基础上,通过建立等效脉冲幅值与局部放电量之间的对应关系,可用于GIS局部放电特高频在线监测装置现场校验。
李兴旺   +4 more
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足月超重产妇产程特点及围产期结局的研究

open access: yesZhongguo shiyan zhenduanxue, 2020
目的分析单胎超重产妇产程特点以及围产期结局。方法以2003年"中国肥胖问题工作组"提出针对我们国家的BMI标准,18.5 ...
金珈汐   +4 more
doaj  

Outcome of monochorionic diamniotic twin pregnancy with selective fetal growth restriction and continuous or intermittent absent or reversed end‐diastolic umbilical artery flow: international multicenter cohort study

open access: yesUltrasound 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

Tree mycorrhizal associations regulate relationships between plant and microbial communities and soil organic carbon stocks at local scales in a temperate forest

open access: yesFunctional Ecology, Volume 39, Issue 6, Page 1550-1566, June 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Forests store substantial amounts of soil organic carbon (SOC), but SOC stocks differ strongly between forest ecosystems dominated by arbuscular mycorrhizal (AM) or ectomycorrhizal (EcM) fungi.
Mengxu Zhang   +10 more
wiley   +1 more source

Automated multivolume placental reconstruction using three‐dimensional power Doppler ultrasound and infrared camera tracking

open access: yesUltrasound in Obstetrics &Gynecology, Volume 65, Issue 5, Page 624-632, May 2025.
ABSTRACT Objectives Placental insufficiency contributes to many obstetric pathologies, but there is no bedside clinical tool to evaluate placental perfusion. We have developed a method to acquire multiple three‐dimensional (3D) power Doppler (PD) ultrasound (US) volumes of placental vasculature, with infrared camera tracking of the precise spatial ...
A. Xue   +5 more
wiley   +1 more source

妊娠期糖尿病孕妇医学营养干预依从性与妊娠结局的关系

open access: yesZhongguo shiyan zhenduanxue, 2019
目的探讨妊娠期糖尿病孕妇医学营养治疗依从性与妊娠结局的关系。方法选取2017年4月至2018年4月在我院门诊确诊的妊娠期糖尿病单胎孕妇100例,在营养门诊进行医学营养治疗指导,并追踪随访至分娩,在干预过程中由孕妇填写个体化营养干预依从性评价表,根据评价结果将孕妇分为"依从性好"和"依从性差"两组,比较两组孕期并发症和围产结局。结果依从性好的孕妇组妊娠期高血压、早产、剖宫产的发生率明显低于依从性差的孕妇组,差异有统计学意义(P0.05);依从性好的孕妇组早产儿、巨大儿的发生率明显低于依从性差的孕妇组 ...
张妍   +4 more
doaj  

Improving transparency in conservation social science research to enhance quality, equity, and collaboration

open access: yesConservation Biology, Volume 39, Issue 2, April 2025.
Abstract Recognition of the value of multidisciplinary research that bridges natural and social science perspectives has come with calls for conservation scientists to reflect critically on underlying assumptions and power relations involved in the production of knowledge and its application.
Marie‐Annick Moreau, Emily Woodhouse
wiley   +1 more source

小波分析在气体绝缘组合电器局部放电检测中的应用

open access: yesGaoya dianqi, 1996
采用两种检测手段,测量了在气体绝缘组合电器(GIS)局部放电模拟系统中,由内导体固定突起所产生的局部放电。一种有效的滤除干扰的信号处理方法——小波分析法被应用于这个系统。结果表明,在背景有较强干扰情况下,由于小波分解的局部特性,在检测局部放电时优于传统的付里叶频谱分析方法及在单纯频率范围滤波的方法。
韩小莲, 冯允平, 邱毓昌
doaj  

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