Results 51 to 60 of about 29,070 (139)
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT This study successfully prepared a high‐palladium (Pd)‐loading (51 wt%) Pd/Al2O3 composite through multiple wet impregnation. The material exhibited excellent hydrogen isotope separation performance, with metal–support interactions endowing it with a higher plateau pressure and lower desorption temperature.
Long Liang +10 more
wiley +1 more source
3.0T高分辨磁共振血管壁成像评估颈动脉斑块性质对脑梗死复发的预测价值
Zhongguo shiyan zhenduanxue目的分析3.0T高分辨磁共振血管壁成像（HR-MRI） 评估颈动脉斑块性质对脑梗死复发的预测价值。方法选取2019年1月至2024年8月在邯郸市中心医院诊治且行HR-MRI检查的脑梗死患者50例为研究对象，根据既往有无梗死病史将其分为复发组和初发组，分析比较两组患者的基本临床资料、脂质坏死核心、颈动脉斑块负荷参数、斑块稳定性、纤维帽破裂及斑块内出血发生情况。结果复发组不稳定性斑块检出率高于初发组（χ2=4.751，P=0.029）；复发组管壁标准化指数(NWI)水平高于初发组（P<0.05 ...
岳志领 +6 more
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Success of restoration strategies in preventing extirpation of 2 critically endangered coral species
Conservation Biology, Volume 40, Issue 2, April 2026.Abstract An unprecedented marine heatwave in 2023 caused widespread coral bleaching and mortality throughout the Caribbean. In the Florida Keys (USA), 2 foundation species, elkhorn coral (Acropora palmata) and staghorn coral (Acropora cervicornis), were severely affected.
Erinn M. Muller +29 more
wiley +1 more source
Threats to and management of Natura 2000 protected areas relative to agricultural practices
Conservation Biology, Volume 40, Issue 2, April 2026.Abstract The Natura 2000 (N2K) network combines biodiversity protection and socioeconomic targets. Human activities, such as agricultural practices, can affect biodiversity in N2K sites in diverse ways. Limiting activities with negative impacts while enforcing land management that supports biodiversity is crucial for effective conservation.
Giorgio Zavattoni +7 more
wiley +1 more source
人乳头状瘤病毒感染与鼻内翻性乳头状瘤发病、复发及恶变关系的研究
Zhongguo shiyan zhenduanxue, 2019 目的探究人乳头状瘤病毒(HPV)与鼻内翻性乳头状瘤(SNIP)发病、复发及恶变间的关系。方法收集2004.09-2017.09于首都医科大学附属北京同仁医院入院接受手术治疗患者的石蜡标本(156例),按术后病理诊断分为正常黏膜组织组(简称正常组,共33例)及SNIP组(123例),随访截至2017.11.30(平均随访时间62.15月),按随访结果分为治愈组(至随访结束暂未见复发或恶变,57例)、复发组(至随访结束出现一次及以上复发但暂未出现恶变,30例)、恶变组(至随访结束已出现明确恶变、原位癌变或中-
王阳, 吴迪, 娄鸿飞, 王成硕
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In vitro culture, cryopreservation, and field reintroduction of the endangered Mingan thistle
Conservation Biology, Volume 40, Issue 2, April 2026.Abstract Current plant conservation efforts are hindered by, for example, poor seed germination, low viability, and insufficient propagation and preservation technologies. To address these problems, we devised an approach to plant conservation that integrates conservation, preservation, and restoration (CPR), which uses advanced in vitro techniques. We
Mukund R. Shukla +4 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2016 摘 要: 【目的】 探讨阵发性房颤患者P波时限对射频消融术后复发的预测意义?【方法】 171例行环肺静脉隔离术的阵发性房颤患者,描记术前及术后心电图,测量Ⅱ?Ⅲ?aVF?V1导联P波时限,计算P波时限变化值? 【结果】 Ⅱ?Ⅲ?Ⅵ导联术后P波时限均小于术前(P < 0.001)?依据随访情况,患者分为复发组32例及未复发组139例?复发组较未复发组在Ⅱ?Ⅲ?Ⅵ导联具有更小的P波时限变化值(P < 0.01),两组术前?术后P波时限及其他临床指标无统计学差异;多因素分析显示更小的Ⅱ导联P波时限变化值(P <
胡晓亮
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Distribution, scale, and drivers of mass mortality events in Europe's freshwater bivalves
Conservation Biology, Volume 40, Issue 2, April 2026.Abstract Mass mortality events (MMEs) are decimating populations and compromising key ecosystem functions around the globe. One taxon particularly vulnerable to MMEs is freshwater bivalve mollusks. This group has important ecosystem engineering capacities and includes highly threatened and highly invasive taxa.
Daniel A. Cossey +39 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 1992 1980～1990年,作者收治原发性肝癌660例,手术切除124例(18.8％)。术后肝内复发者32例(肝内复发率25.8％),2 年以内复发者占93.8％。93.7％合并肝硬化,15.5％并发门脉高压症。复发肝癌中4例(3.2％,4/124)行再切除,术后生存平均26.8月;22例行B超引导肝癌复发灶无水酒精注射术,术后8例死亡,平均生存8.5月;10例行肝动脉栓塞化疗或肝动脉结扎及插管化疗,术后生存平均16.8月,对照组仅4.5月。复发癌再次外科治疗以再切除术为首选(术后生存26.8～42.6月 ...
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Zhongguo shiyan zhenduanxue, 2012 重复癌（Multiple Primary Malignant Tumors,MPMT）由Billroth于1889年首次报道。重复癌又称多原发癌（Multiple Primary Carcinoma,MPC）是指同一宿主在同一器官或成对器官、同一系统的不同部位以及不同器官,同时或先后发生的两个或两个以上的原发恶性肿瘤。目前,随着诊断及医疗技术的日趋完善、恶性肿瘤临床治愈率的提高和生存期的延长,以及严格的追踪随访,重复癌的产生与发现愈来愈多,重复癌的研究也日益引起重视 ...
邓康丽, 姚月良, 葛立本
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