Results 71 to 80 of about 30,647 (147)
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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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT A central challenge in alkaline water electrolysis is the development of hydrogen evolution reaction (HER) electrocatalysts that simultaneously maintain high activity and structural stability at industrial current densities. Hydroxide‐based supports that facilitate water dissociation are particularly susceptible to over‐reduction and ...
Feng Chen +9 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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Metal‐Based Materials for Redox Modulation in Biomedicine
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Metal materials have become increasingly important in modulating biological redox networks for therapeutic and diagnostic purposes, owing to their distinctive electronic properties and adaptable reactivity. This review synthesizes recent developments across various metal‐based materials, including elemental metals, metal oxides, coordination ...
Yan Fan +7 more
wiley +1 more source
四川大学学报. 自然科学版, 1988 原子核在俘获一个中子以后,形成复核并处于激发态,在很短的时间内发射出级联γ射线而退激。很多激发态的寿命的特征时间～10-13秒.这一特征时间与MeV能量复核的慢化时间在同一数量级内,因而复核的衰变就会影响复核的运动,即处于不同慢化阶段的运动复核其发射的γ射线的Doppler位移将不同.这就是复核γ谱的Doppler展宽.Doppler展宽的γ谱形与复核的衰变常数有关,因而复核γ谱实际上记录了激发态的衰变特性.利用这一事实便可从复核γ谱上获得复合核寿命的资料.然而目前这一方法只能对寿命的数量级进行估计 ...
罗正明, 夏宜君
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Sexuality, Gender &Policy, Volume 9, Issue 3, August 2026.ABSTRACT This article examines transmasculine pregnancy as a critical lens through which to analyze the intersections of cisnormativity, reproductive governance, and reproductive citizenship within healthcare systems. While existing research has documented barriers faced by transgender populations, less attention has been paid to how institutional and ...
Letícia Carolina Boffi +1 more
wiley +1 more source
World Water Policy, Volume 12, Issue 3, August 2026.ABSTRACT Groundwater depletion is a major challenge in semiarid, hard‐rock regions where irrigation demands often exceed natural recharge. This study evaluates the effectiveness of farm‐scale recharge pits as a local, supplementary, and community‐managed groundwater recharge solution in the Dharta catchment of Rajasthan, India. Alongside check dams and
Prahlad Soni +4 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2014 【目的】 探讨增殖相关抗原Ｋｉ－６７在木村病（ＫＤ）患者中的表达及其与复发相关因素的关系。 【方法】 用链酶素生物素－过氧化物酶（ＳＰ法）对４０例经手术治疗病理证实为木村病的石蜡组织检测Ｋｉ－６７的表达，评估其在复发和无复发患者中的表达情况。【结果】在４０例患者中，男性３７例，女性３例，年龄１０ ～ ７５岁，３４例患者的主要肿块位于头颈部，其余７例主要肿块位于上腭或腹股沟区域，肿块最大直径为６．５ ｃｍ。Ｋｉ－６７在木村病复发患者（１１／４０）淋巴结组织中（不包括生发中心）表达高于无复发的患者（Ｐ＜ ０．
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World Water Policy, Volume 12, Issue 3, August 2026.ABSTRACT Village tank cascade systems (VTCS) are a long‐established form of water management in Sri Lanka's dry zone. However, their role in groundwater recharge, climate adaptation, and water governance remains insufficiently recognized in policy and planning.
Ananthini Nanthakumaran +1 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2012 【目的】 探讨高度宫颈上皮内瘤变(CINⅡ/Ⅲ)行环形电切除术(LEEP)术后随访的检测方法和复发的危险因素?【方法】 回顾性分析2007年1月至2009年1月在我院行LEEP术并且病理诊断为CIN Ⅱ/Ⅲ病例203例?分析术前的液基细胞学(LCT)?高危型HPV DNA,临床病理特征和术后24月随访的LCT?HPV DNA与最终复发的关系?【结果】 203例接受LEEP术并保留子宫的患者,在24个月的随访中发现18例复发,复发率为7%?手术病理切缘阳性?宫颈管搔刮阳性与复发相关(P < 0.01 ...
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