Results 21 to 30 of about 115,125 (183)
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Internal oxidation has been identified as an effective method for enhancing the strength of AgMg alloys. However, the concurrent occurrence of embrittlement remains inadequately understood, thus limiting their broader application. This study investigates the oxidation behavior of AgMg alloys with Mg concentrations ranging from 1 at% to 7 at ...
Hai‐Cheng Zhu +12 more
wiley +1 more source
World Medical &Health Policy, Volume 17, Issue 4, Page 823-830, December 2025.ABSTRACT Sepsis is a leading cause of mortality in the United States, with over 350,000 deaths annually, yet the contribution of neighborhood‐level social determinants of health (SDoH) remains underexplored. We conducted a retrospective analysis of 4.4 million hospitalized patients with sepsis, identified using ICD‐10 codes, leveraging de‐identified ...
Ahad Khaleghi Ardabili +3 more
wiley +1 more source
Finding floral and faunal species richness optima among active fire regimes
Conservation Biology, Volume 39, Issue 6, December 2025.Abstract Changing fire regimes have important implications for biodiversity and challenge traditional conservation approaches that rely on historical conditions as proxies for ecological integrity. This historical‐centric approach becomes increasingly tenuous under climate change, necessitating direct tests of environmental impacts on biodiversity.
Zachary L. Steel +8 more
wiley +1 more source
Policy Effectiveness in Managing Drug Shortages: Evidence From South Korea (2015–2024)
World Medical &Health Policy, Volume 17, Issue 3, Page 561-572, September 2025.ABSTRACT Drug shortages represent a growing policy challenge for healthcare systems worldwide. This study investigates actual drug shortage events in South Korea from 2015 to 2024, using a “Shortage Occurred vs. Shortage Non‐Occurred” framework to distinguish real‐world disruptions from administrative classifications.
Seung‐Rae Yu
wiley +1 more source
Social protection and resilience in protracted crises
International Social Security Review, Volume 78, Issue 2-3, Page 173-190, April-September 2025.Abstract This article critically examines perspectives on social protection’s role in strengthening resilience capacities in protracted crises – contexts where conflict and displacement persist for five years or longer. These crises shape how stakeholders navigate their mandates to provide support, while influencing how affected communities seek to ...
Carolina Holland‐Szyp, Jeremy Lind
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2022 通过检索古籍文献，整理了明代（公元1368—1644年）长江流域人口大量死亡事件（mass death events，MDE）10 a尺度的频次与县次序列，利用自然断点分级法、空间分析法等分析了MDE的时空特征及发生原因。结果表明：276 a间，长江流域有158 a发生MDE，明代后期发生频次和影响规模最大；季节上，表现为夏季多发（44.3%），春、秋季次之；空间上，集中分布于长江中下游、尤其是长江三角洲地区，且呈从各省交界处向各省中心扩散的趋势。“未记录原因的饥荒”和“旱灾+其他灾害-饥荒 ...
WUZiyu(毋子玉) +3 more
doaj +1 more source
Dianci bileiqi, 2018 为了深入揭示复合绝缘子脆断机理并提出预防措施,分析了一起500 kV复合绝缘子脆断事故,采集故障绝缘子与正常绝缘子样本进行对比试验。对样本绝缘子进行外观检查、解剖测试、拉力和耐应力腐蚀测试、憎水性测试等试验,并对试验结果进行实验室条件下的分析。结果表明:故障复合绝缘子存在3层较为明显的光滑断面,且断面处芯棒与硅橡胶护套交界面处存在硅橡胶粉化层;6只试验绝缘子只有2只通过耐应力腐蚀试验;试验绝缘子憎水性等级在HC4～HC5之间;元素分析发现脆断绝缘子芯棒中硼元素含量较高,结合测试结果可知芯棒为非耐酸芯棒 ...
卢明 +5 more
doaj
Dianci bileiqi, 2022 针对氧化锌非线性电阻片制造过程中隐性开裂的问题，采用金相显微镜等方法，对开裂断面的显微结构形貌、受力方式进行分析验证，探究了塑性开裂和脆性开裂两种隐性开裂的机理以及隐性开裂发生的时段。结果表明，氧化锌非线性电阻片发生隐性开裂的主要形式是在排结合剂之后发生的脆性开裂，这种开裂方式是在受力磕碰后，早期表现为非常隐蔽的微裂纹，后经高温烧结裂纹进一步扩展，最后受磨片剪切应力后开裂显现的一种失效模式。
张文刚 +5 more
doaj
The Neo‐Mercantilist Nexus: China's Geoeconomics Strategy in the Middle East—Discourse and Practice
Digest of Middle East Studies, Volume 34, Issue 2, Spring 2025.ABSTRACT China's Belt and Road Initiative (BRI) has become a cornerstone of its hybrid neo‐mercantilist geoeconomics strategy, reshaping the Middle East's geopolitical and economic landscape. This research explores how the BRI enables China to secure energy resources, expand trade networks, and establish strategic infrastructure, thereby advancing its ...
Riya Sultana, Ronen A. Cohen
wiley +1 more source
Hair fragility (trichorrhexis nodosa) in alopecic Pomeranian dogs
Veterinary Dermatology, Volume 36, Issue 1, Page 64-73, February 2025.Background – Alopecia associated with hair cycle arrest (HCA, Alopecia X) is well‐recognised in Pomeranian dogs. The authors are unaware of reports of hair fragility in affected dogs. Hypothesis/Objectives – Following the observation of frequent hair shaft abnormalities in alopecic Pomeranians, we hypothesised that hair fragility events would be more ...
Erin Brennan +6 more
wiley +1 more source