Results 21 to 30 of about 274,920 (162)
Highlights Few studies have investigated the association of large‐scale biomarkers and pulse wave velocity (PWV) among diabetic patients. This study investigates the relationships of serum laboratory tests with PWV and explored the associations between PWV and all‐cause mortality among diabetic patients.
Yong‐Qi Liang +9 more
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Metrics for quantifying how much different threats contribute to red lists of species and ecosystems
Abstract Red lists are a crucial tool for the management of threatened species and ecosystems. Among the information red lists provide, the threats affecting the listed species or ecosystem, such as pollution or hunting, are of special relevance.
Hanno Sandvik, Bård Pedersen
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本文以天水地区为研究区,结合地震潜在震源区模型和Newmark位移预测方程,采用概率地震危险性分析方法,计算了该地区50年超越概率10%水平下的Newmark位移。同时,根据天水地区50年超越概率10%下的阿里亚斯烈度,并结合Newmark位移与阿里亚斯烈度的关系式,计算了天水地区在遭受50年超越概率10%下的阿里亚斯烈度影响时,潜在滑坡体产生的Newmark位移分布。通过比较上述两种方法得到的天水地区不同Newmark位移的分布特征,本文认为二者虽然存在较大差异 ...
Xuejing Li, Mengtan Gao, Weijin Xu
doaj +1 more source
针对海啸危险性概率分析(PTHA)存在的较大不确定性问题,对不确定性产生来源进行了归纳和分类,提出了基于逻辑树与事件树方法合理量化不确定性的思路框架,并以马尼拉海啸潜源为研究对象,给出了量化震级上限、破裂面参数不确定的过程示例。数值模拟分析结果表明:海啸潜源震级上限的改变对危险性评估结果产生了显著影响,通过逻辑树方法可合理量化这种不确定性;地震破裂面的倾角、滑移角和破裂面积的随机不确定性对海啸危险性分析结果产生较为显著的影响,经事件树方法处理后的危险性结果保证率远高于20%,略低于80 ...
Ye Liu +3 more
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胃肠道间质瘤的CT影像学征象及其病变危险度分级的临床分析 [PDF]
目的探究胃肠道间质瘤(GIST)的CT影像学征象和病变危险度分级。方法方便选择2011年4月—2017年4月该院GIST患者80例,均采取多层螺旋CT横断位扫描,对其影像学征象、病变危险度分级展开回顾性分析。结果46例低度危险,23例中度危险,11例高度危险;不同危险程度的患者其肿瘤生长方式、平扫密度、最大径等指标对比差异有统计学意义 ...
王建明
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目的 调查邯郸市居民心脑血管病危险因素的流行现状,并分析高血压知晓率、治疗率和控制率的影响因素。 方法 本研究采用非随机整群抽样的方法,于2019年6-9月对邯郸市7个社区中≥40岁的居民开展横断面调查,对居民进行问卷调查、体格检查和实验室检查,分析当地居民心脑血管疾病危险因素的分布情况,并分析高血压知晓率、治疗率和控制率的影响因素。 结果 本研究共纳入3933例调查对象,其中吸烟、缺乏运动、不合理膳食、超重或肥胖、单独居住、卒中家族史、冠心病家族史、高血压家族史、服用降压药物、服用降糖药物 ...
宋彦丽1 ,林杰1 ,武一平2 ,李晓晶1 ,刘改芬3 ,夏文静1 ,张玉英4 ,张晓林5 ,吕晨冉5 , 周红5 ,李凯1 ,薛斌1 ,陈玲玲6 ,张忠波2 ,彭晓
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ABSTRACT Arsenic presents a critical duality as both a hazardous environmental pollutant and an indispensable material for advanced semiconductor technologies. This study proposes an integrated reductive vacuum sublimation strategy, assisted by carbon and lead additives, to purify crude arsenic containing high oxygen (7.4%) and antimony (1326 mg kg−1).
Hongrui Xiang +6 more
wiley +1 more source
ABSTRACT Objectives To evaluate the effect of aspirin on gestational age at delivery due to preterm pre‐eclampsia (PE) in women with chronic hypertension (CH), to assess the predictive performance of the Fetal Medicine Foundation (FMF) first‐trimester competing‐risks model for preterm PE in this high‐risk group and to evaluate how parity, previous PE ...
D. L. Rolnik +23 more
wiley +1 more source
Longitudinal maternal hemodynamics in high‐risk pregnancies with different subtypes of pre‐eclampsia
ABSTRACT Objective To evaluate maternal cardiac adaptation during pregnancy by comparing longitudinal hemodynamic profiles between women identified as high risk for preterm pre‐eclampsia (PE) who subsequently developed preterm PE, term PE or remained unaffected, as well as low‐risk women.
J. Lin +10 more
wiley +1 more source
摘要 目的:探究新兵基础训练初期出现膝关节部位损伤的危险因素,并从而提出针对性的护理对策。方法:选取2020年秋季入伍的224名新兵进行回顾性问卷调查,了解训练早期膝关节部位损伤情况,并采用单因素分析和Logistic回归分析造成新兵膝关节损伤的潜在危险因素,提出相应护理改进措施。结果:224名接受问卷调查的新兵中,有88名在训练早期出现了膝关节的损伤,发生率为39.3%;单因素分析发现,膝关节损伤和未损伤的新兵,在知识学历水平、入伍前来自南北方地区、身体质量指数、平时体育锻炼情况、训练装备是否合身 ...
abcd123
core +1 more source

