Results 61 to 70 of about 31,258 (146)

Prospective external validation of ADNEX and RMI for estimating risk of malignancy in adnexal masses in general gynecological settings: Danish multicenter study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 68, Issue 2, Page 256-269, August 2026.
ABSTRACT Objectives The primary aims of this study were to validate externally the diagnostic performance of the Assessment of Different NEoplasias in the adneXa (ADNEX) model for distinguishing between malignant and benign adnexal masses, when used by non‐expert ultrasound examiners in general gynecological settings with a low prevalence of ovarian ...
I. M. Dueholm Hjorth   +11 more
wiley   +1 more source

断路器试验方式T100a中最长燃弧时间试验分析

open access: yesGaoya dianqi, 2023
目前断路器标准中的试验方式T100a主要有两种试验程序,其中一种在额定非对称度小半波末确定最短燃弧时间,例如GB/T 1984—2014《高压交流断路器》;另一种在中等非对称度大半波末确定最短燃弧时间,例如GB/T 4473—2018《高压交流断路器的合成试验》。通过比较发现两种试验程序使用的最大燃弧窗口差异较大,GB/T 4473—2018中的最大燃弧窗口明显小于GB/T 1984—2014中的最大燃弧窗口。为了研究GB/T 4473 ...
姜子元   +5 more
doaj  

Hypertension at 5 months postpartum in women with gestational diabetes

open access: yesUltrasound in Obstetrics &Gynecology, Volume 68, Issue 2, Page 202-210, August 2026.
ABSTRACT Objective Gestational diabetes mellitus (GDM) is associated with future maternal cardiovascular disease, independent of the development of Type‐2 diabetes mellitus. As a major cardiovascular risk factor, we examined the incidence and predictors of hypertension at 5 months postpartum in women with previous GDM.
C. Gómez Fernández   +7 more
wiley   +1 more source

高含量阳离子清水剂处理含油污泥水的研究

open access: yesGongye shui chuli, 2021
以二甲胺与环氧氯丙烷为原料,乙二胺为交联剂,合成了高含量的低分子质量阳离子清水剂,进行了中试放大和结构表征,并进行了矿场应用试验。结果表明:小试产物与中试产物经红外光谱和1HNMR的表征结果一致。使用小试产物与中试产物对含油污泥水进行处理,效果优于聚铝清水剂,与阳离子聚丙烯酰胺的处理效果一致。合成产物作用时的絮体沉降速率介于聚铝清水剂和阳离子聚丙烯酰胺清水剂之间,絮体紧密度适中。在矿场应用中解决了以往由于絮体紧密度过高而导致的流程中断问题。
赵德喜
doaj   +2 more sources

污秽绝缘子泄漏电流测量指示器 附视频

open access: yesDianci bileiqi, 1977
在党中央和英明领袖华主席的领导下,我所坚持党的基本路线,以阶级斗争为纲狠抓反污防污工作,取得了一定成绩。在全所同志共同努力下,为监视和测量绝缘子表面泄漏电流,创制了污秽绝缘子泄漏电流测量指示器。现将其简单结线和测试示意图及用法和注意事项介绍如下,供参考。
天津电业局中心试验所
doaj  

Pinus armandii ectomycorrhizas mobilize aluminium‐bound phosphorus via carboxylates along a subtropical altitudinal gradient

open access: yesJournal of Ecology, Volume 114, Issue 8, August 2026.
Ectomycorrhizal roots of Pinus armandii release more carboxylates than non‐mycorrhizal root segments, mobilizing Al‐bound inorganic P. Under the lowest available P conditions, they also secrete more phosphatase, promoting the mineralization of Al‐bound organic P.
Jun Zhou   +7 more
wiley   +1 more source

Study on correlation between test anxiety of medical students and constitution of traditional Chinese medicine

open access: yesHuli yanjiu, 2015
[目的]调查研究某中医药大学医学生的考试焦虑情况及其与中医体质的相关性,为防治医学生考试焦虑提供参考价值。[方法]选取某中医药大学医学生878名为研究对象,通过焦虑自评量表(SAS)和考试焦虑量表(TAS)将研究对象分为考试焦虑组及非考试焦虑组,应用中医体质分类与判定自测表(CCMQ)进行体质分类,分析考试焦虑与中医体质的相关性。[结果]878名医学生中,存在考试焦虑者共154人,占17.54%,其中考试焦虑人群以气虚质(28.57%)、气郁质(17.53%)、血瘀质(14.29%)为主 ...
宋阳, 蔡鑫桂, 李文杰, 李敏仪
doaj  

An experimental approach to assess the combined effects of multiple stressors on a large vertebrate species

open access: yesConservation Biology, Volume 40, Issue 4, August 2026.
Abstract The design of experiments to investigate the combined effects of multiple stressors requires exposing target organisms to multiple combinations of stressor doses. Concurrent manipulation of stressors is often infeasible with wildlife, but long‐lasting health effects allow individual health to be used as an integrator of prior stressor exposure.
Enrico Pirotta   +24 more
wiley   +1 more source

Exploring legal‐ and health‐risk messaging to reduce demand for elephant skin

open access: yesConservation Biology, Volume 40, Issue 4, August 2026.
Abstract Asian elephants (Elephas maximus) are poached for an illegal trade in their skins, which are used in traditional medicine in Africa and Asia. We explored whether messages about the legal and health risks of using elephant skin for medicinal purposes (stomach illness) could reduce such consumption.
Beilu Duan   +10 more
wiley   +1 more source

绝缘子的检查与试验方法讲座(五) 第五讲 绝缘子的其它专用试验方法

open access: yesDianci bileiqi, 1987
编入《绝缘子试验方法》标准中的试验方法,除了《一般试验方法》、《电器试验方法》和《机试试验方法》外,还有一些试验方法分别列在有关产品标准中,或者制订了专用的试验方法标准。例如,绝缘电阻试验列在GB774—80 《架空通信线路针式瓷绝缘子》标准中,热机试验和无线电干扰试验等则单独制订了标准。以后这些标准,将按照《绝缘子标准体系表》的规定,逐步归并在《绝缘子试验方法》标准中,作为一个具有独立内容的分部标准,这样《绝缘子试验方法》标准内容将更趋完臻。本讲主要讲这些试验方法中的一部分。
刘树横
doaj  

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