Results 41 to 50 of about 11,547 (179)
, 1986 疾病情况下血清铜、锌水平的变化,已往研究多集中于何杰金氏病、白血病和肉瘤等,但结论不甚一致。少数作者报道了消化道恶性肿瘤时铜锌水平的变化。本文通过对消化道癌肿及某些良性疾患病人血清铜、锌浓度及铜锌比值的观察 ...
詹文华
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Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT The central challenge in the development of high‐performance electromagnetic wave‐absorbing materials lies in achieving an optimal balance between impedance matching and attenuation characteristics. This is particularly critical for purely dielectric absorbers, where precise tailoring of the real (ε′) and imaginary (ε″) parts of the complex ...
Zhixiao Wang +7 more
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, 2021 本篇文章分析了传统泛水节点施工技术的不足，创造性的将屋面保温与泛水节点一体化施工。通过一体化保温泛水节点的重新设计及相应试验分析，论述了屋面保温与泛水节点一体化施工技术的施工方法。并且通过在实际工程中的应用，总结了工艺流程及操作要点、质量控制指标及措施，并根据应用情况进行了效益分析。
顺 杨
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Functional Ecology, Volume 40, Issue 1, Page 163-175, January 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Grazing by large herbivores is a critical factor shaping grassland biodiversity and ecosystem functioning worldwide, yet its consequences for soil communities remain poorly understood.
Quanhui Ma +12 more
wiley +1 more source
International Journal of Urban and Regional Research, Volume 50, Issue 1, Page 191-220, January 2026.Abstract Henry George advocated for capturing land value increases for public ends. The active approach of public authorities organizing and financing land development can help capture higher land value increases, as Hartman and Spit indicate. However, this approach hardly happens in developing countries, where the coalition of private developers and ...
Nannan Xu
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, 1999 药品的有效性、安全性和质量可控制性是三项最基本也是最重要的前提。中药复方是中医用药的主要形式，其有效性和安全性经过千百年的临床检验是可靠的。但由于质量缺乏可控制性，往往会出现辨证正确，处方无误而疗效不佳的现象。究其原因不是所用药物有问题，就是制剂方法 ...
刘建利
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Improvements for better scaling of locally managed marine areas
Conservation Biology, Volume 39, Issue 5, October 2025.Abstract To protect and restore ecosystems at the speed and scale required to meet current environmental challenges, a greater understanding of how conservation initiatives spread from existing to new adopters is required. According to the diffusion of innovation theory, positive adopter‐to‐peer communication is a powerful driver of innovation spread ...
Emily Lewis‐Brown +6 more
wiley +1 more source
Zhongguo cuzhong zazhi, 2023 目的 调查卒中患者病历出院小结现状，以及住院医师规范化培训与出院小结的关系，梳理目前存在的问题，为下一步制定针对性改善措施提供可靠数据。 方法 本研究通过调查一个区域性高级卒中中心连续2个月出院卒中患者病历的出院小结，利用标准病历书写质量（针对书写内容重要元素完整性及质量等7项内容，总分10分）及卒中病历质量评分（包括卒中类型、病因分型、诊疗经过及用药、并发症描述、出院时神经功能评估、预后评估、进一步诊断检查建议、出院用药指导、出院血压及血脂控制目标及治疗随访建议11个项目，每项目计1分，共计11分 ...
宋晓微, 侯多朵, 赵蕾, 武剑
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Determination of Andrographolide and Dehydroandrographolide in Andrographis paniculata Nees Materials and Related Patent Medicines by Reversed-Phase High Performance Liquid Chromatography [PDF]
, 2002 发展了穿心莲药材及其中成药中两种主要成分穿心莲内酯和脱水穿心莲内酯的反相高效液相色谱测定方法。采用甲醇振荡提取法进行样品前处理 ,在以乙腈 水为流动相作梯度洗脱、ODS柱、检测波长为 2 2 5nm的条件下 ,穿心莲内酯和脱水穿心莲内酯在 1 5min内可达到基线分离。两种内酯在 1 0mg/L～ 1 0 0mg/L时其浓度与峰面积成良好的线性关系 ,加标回收率为 96 %～ 1 0 4 %。该法适用于穿心莲药材及其制剂的质量分析检验A simple and accurate method for ...
徐晓琴 +4 more
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New Phytologist, Volume 247, Issue 2, Page 504-517, July 2025.Summary Repetitive DNA is a feature of all organisms, ranging from archaea and plants to humans. DNA repeats can be seen both in coding and in noncoding regions of the genome. Due to the recurring nature of the sequences, simple DNA repeats tend to be more prone to errors during replication and repair, resulting in variability in their unit length ...
Sridevi Sureshkumar +3 more
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