Results 41 to 50 of about 27,225 (131)

The Microstructure Evolution and Mechanical Properties of (FeCoCrNi)100‐x(AlCu)x High‐Entropy Alloys

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT This study systematically investigates the effects of AlCu addition on the microstructural evolution and mechanical properties of (FeCoCrNi)100‐x(AlCu)x (x = 0, 5, 10, 15, 20; at%) high‐entropy alloys (HEAs). The results reveal that the microstructure evolves from coarse equiaxed to refined equiaxed, dendritic, and ultimately dual‐phase ...
Shunfu Xie   +7 more
wiley   +1 more source

Tunable Redox‐Active Anhydride‐Based Linear Polymer as Organic Cathodes for Chemically Self‐Charging Aqueous Zinc–Ion Batteries

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Chemically self‐charging aqueous zinc‐ion batteries (AZIBs) have emerged as promising candidates for energy storage technologies owing to their environmental autonomy and structural simplicity. Nonetheless, the self‐charging performance is significantly compromised by the limited potential difference between cathodes and oxygen, as well as the
Yan Wang   +5 more
wiley   +1 more source

C1GALT1基因多态性与维吾尔族IgA肾病易感性的关联性分析

open access: yesLinchuang shenzangbing zazhi, 2014
目的 探讨β1,3-半乳糖基转移酶(C1GALT1)基因单核苷酸位点(SNP)rs9639031、rs5882115多态性与新疆维吾尔族IgA肾病(IgA nephropathy,IgAN)遗传易感性的关系。方法 选取经肾活检明确诊断为IgAN的90例维吾尔族患者为实验组,以同期在同一医院体检的90例维吾尔族健康体检者作为对照组,2组的性别和年龄等相匹配。采集纳入研究对象的外周血,提取DNA,应用PCR法扩增C1GALT1基因上2个ShIP分别为rs9639031、rs5882115位点对应的基因片段 ...
陆晨
doaj  

MXene‐Based Materials: Compositional Engineering for High‐Performance Microwave Absorption

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The rapid advancement of aerospace and electronic information technologies has imposed increasingly stringent requirements on microwave absorbing materials (MAMs), such as high absorption efficiency, lightweight, and environmental stability, making the development of advanced MAMs urgent for both civilian and national defense applications ...
Pan‐Pan Zhou   +8 more
wiley   +1 more source

白细胞介素8和载脂蛋白E基因多态性与迟发性 阿尔茨海默病的相关分析

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2010
【目的】 探讨白细胞介素8基因(interleukin-8,IL-8)基因A-251T和载脂蛋白E(ApoE)基因多态性与迟发性阿尔茨海默病(LOAD)的相关性65377;【方法】 采用聚合酶链反应-限制性片段长度多态性方法(PCR-RFLP)观察185例广东汉族人群 (研究组:LOAD患者88例,正常对照组97例) IL-8基因A-251T基因65380;ApoE基因多态性的分布并进行关联分析65377;【结果】 ① IL-8 基因A ...
doaj  

雌激素受体基因多态性与绝经后女性代谢综合征的相关性研究

open access: yesZhongguo shiyan zhenduanxue, 2014
目的观察雌激素受体(ER)α和β基因多态与绝经后女性代谢综合征(MS)的关系。方法 311例无亲缘关系的绝经后MS患者和231例年龄相匹配的健康对照人群,采用聚合酶链反应-限制性片段长度多态性(PCRRFLP)技术,检测ERα(XbaⅠ、PvuⅡ)和β基因(RsaⅠ、AluⅠ)多态性,并采用SHEsis在线计算平台进行统计学分析。结果与对照组相比,MS患者体重、BMI、SBP、DBP以及血清FBS、GSP、TG水平显著高于对照组,而HDLC水平显著低于对照组(P0.05);对照组和MS组RR、Rr ...
孙树凯   +5 more
doaj  

Fetoscopic laser ablation vs standard management for Type‐II and Type‐III vasa previa

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 3, Page 320-328, March 2026.
ABSTRACT Objective The standard management (SM) for vasa previa (VP) includes antepartum inpatient admission at 28–32 weeks' gestation followed by Cesarean delivery at 34–37 weeks. Case reports and case series have reported on fetoscopic laser ablation (FLA) as an alternative management approach for Types‐II and ‐III VP.
S. Backley   +11 more
wiley   +1 more source

苯乙酸对胶质瘤细胞C6中同源盒基因表达的影响

open access: yesZhongguo shiyan zhenduanxue, 2004
目的 观察诱导分化剂苯乙酸 (PA)抑制胶质瘤细胞C6增殖过程中 ,生物发育调节的主控基因———同源盒基因 (Hox基因 )表达的变化。方法 根据引物的不同 ,将已知的 2 2种HOX基因分为 3组 (P1,P2 ,P3)。用逆转录PCR(RT PCR)及图像分析法检测应用PA前后 ,Hox基因组在胶质瘤细胞C6中表达的变化。针对应用PA前后表达显著不同的Hox基因组 ,用组内包含的特异Hox基因的引物 ,重复上述实验 ,检测特异Hox基因的表达。Hox基因 (组 )表达水平用基因 (组 ) β ...
田宇, 赵丛海, 杨朝华
doaj  

Landscape Composition and Proximity to Water Affect American Badger Occupancy in Shortgrass Prairies 景观组成和与水的距离影响矮草草原中美洲獾的占域率

open access: yesWildlife Letters, Volume 4, Issue 1, Page 23-31, March 2026.
American badgers, a medium‐sized carnivore occurring in much of North America, are important predators in prairie landscapes though our understanding of their habitat use requirements in these areas is unclear. We used a multi‐scale approach to understand American badger habitat use at both local and landscape scales.
Colleen W. Piper   +5 more
wiley   +1 more source

306例老年痴呆患者ApoE基因多态性及Hcy水平回顾性分析

open access: yesZhongguo shiyan zhenduanxue, 2019
目的探讨老年痴呆患者ApoE基因多态性及Hcy水平的分布特点及相关性。方法选取2015年8月-2018年8月协和医院神经科、内科就诊和住院的患者为研究对象,从中筛选痴呆患者306例回顾性分析ApoE基因型的分布情况及Hcy水平分布特点。结果痴呆组与对照组ApoE基因型均以ε3ε3型最为常见,其中痴呆组ε3ε4、ε4ε4两种基因型高于对照组,差异有统计学意义 ...
史玉玲
doaj  

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