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明末土司辖区民间开场活动——以清水江流域为例

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遵义师范学院学报 2019年第1期21卷 10-15页

作者：李士祥遵义师范学院历史文化与旅游学院贵州遵义563006

明末清水江流域,土司辖区民间开场活动,为民间自发行为,不一定有土司参与,而是多方力量平衡之结果。其特点表现为开场地点、时间明确化,利益精准化,义务条件化。开场之后,面临着方便民众交易和匿藏匪徒、劫掠集市之间的矛盾,其市场能否... 详细信息

明末清水江流域,土司辖区民间开场活动,为民间自发行为,不一定有土司参与,而是多方力量平衡之结果。其特点表现为开场地点、时间明确化,利益精准化,义务条件化。开场之后,面临着方便民众交易和匿藏匪徒、劫掠集市之间的矛盾,其市场能否健康运作,是二者矛盾此消彼长的结果。明末土司辖区民间市场的构建,为清水江流域开发,奠定了较好基础。

关键词：明末土司开场清水江流域

高效液相色谱法测定罗汉果饮料中甜苷V的含量

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中国食品添加剂 2015年第6期26卷 178-183页

作者：谭冬明石相莉吕新印桂林市产品质量检验所桂林541004

建立了高效液相色谱法测定罗汉果饮料中甜苷V的方法。样品经70％甲醇溶液提取溶解，采用C18反相色谱柱分离，用乙腈-0．1％磷酸溶液（22：78）为流动相进行洗脱，检测波长为203nm，流速为1mL／min，以色谱峰保留时间和紫外可见光谱进行... 详细信息

建立了高效液相色谱法测定罗汉果饮料中甜苷V的方法。样品经70％甲醇溶液提取溶解，采用C18反相色谱柱分离，用乙腈-0．1％磷酸溶液（22：78）为流动相进行洗脱，检测波长为203nm，流速为1mL／min，以色谱峰保留时间和紫外可见光谱进行定性，外标法进行定量，并应用该方法对多个样品中甜苷V含量进行检测。结果表明，甜昔V在0．0024～0．384mg／mL范围内线性关系良好（R^2=0．9999），检出限为3mg／kg，加标回收率为98％～105％。该方法操作简单，精密度好，能满足罗汉果饮料中甜昔V的检测要求。固体饮料甜苷V含量在0～65mg／100g之间，液体饮料在0～15mg／100g之间，甜苷在罗汉果饮料生产中对其含量控制较低，因其甜味性质，含量高会导致口感不佳，消费者难以接受。因此，该方法可作为罗汉果饮料产品的质量控制及真伪鉴别的检测方法。

关键词：液相色谱甜苷V 罗汉果饮料含量

倾听历史之音——口述史视野下的清水江文书研究

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贵州大学学报（社会科学版） 2015年第4期33卷 62-70页

作者：李士祥遵义师范学院历史文化与旅游管理学院贵州遵义563002

清水江文书研究,既要学习继承敦煌、徽州文书甚至传统历史文献研究方法与思路,更要走出一条具有自己特色的研究路径。口述史的尝试,便是对文书研究的一个有益探索。归户性特征,为文书口述史研究提供良好契机。文书口述史料的收集、整理... 详细信息

清水江文书研究,既要学习继承敦煌、徽州文书甚至传统历史文献研究方法与思路,更要走出一条具有自己特色的研究路径。口述史的尝试,便是对文书研究的一个有益探索。归户性特征,为文书口述史研究提供良好契机。文书口述史料的收集、整理要注意"点""面"结合,考证文书或老人口中苗语侗音的自身含义,具有口述史的独特性。老人逝去,语言流逝,使文书口述史记录更具有紧迫性。文书口述史料挖掘、运用,能够弥补传统文献史料不足或局限,扩展文书研究史料途径,对于多角度、新视野探讨清水江流域乃至中国传统农村社会变化发展的多维真实情况,也具有不可替代的研究价值。

关键词：口述史清水江文书归户性苗语侗音

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色拉西“潮尔”乐曲创作手法探究

内蒙古大学艺术学院学报 2007年第3期4卷 26-31页

作者：李世相内蒙古大学艺术学院内蒙古呼和浩特010010

色拉西在创作民歌改编曲时,合理运用了潮尔艺术中虚实相间的音高变化处理;在改编中经常会改变某些民歌的曲调片断音;他的改编曲,很少见将一首民歌从头至尾进行加花变奏处理,而多数情况下是将民歌旋律中的某一乐节或片断进行加花式处理;... 详细信息

色拉西在创作民歌改编曲时,合理运用了潮尔艺术中虚实相间的音高变化处理;在改编中经常会改变某些民歌的曲调片断音;他的改编曲,很少见将一首民歌从头至尾进行加花变奏处理,而多数情况下是将民歌旋律中的某一乐节或片断进行加花式处理;他独创了许多诺古拉式的装饰性写法,从而创造、丰富了潮尔琴的表现方式及表现力;他创造性地运用了潮尔低音的共鸣。色拉西先生不愧为"潮尔"艺术大师,他将蒙古族"潮尔"艺术推向了一个新的巅峰。

关键词：蒙古族音乐色拉西 “潮尔”乐曲创作手法

18至20世纪中期清水江地区分家析产探析——以《清水江文书考释·天柱卷》分关文书为中心的考察

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贵州大学学报（社会科学版） 2013年第2期31卷 73-79,137页

作者：李士祥贵州大学中国文化书院贵州贵阳550025

家庭分关文书是研究家庭兴衰沉浮和财产分配制度最重要的第一手材料。本文通过对90份清水江分关文书的深入考察,仔细探析了18至20世纪中期该区域家庭分关的具体原因、分配原则、分配方式,以及分配频率。通过本文可以看出清水江地区分家... 详细信息

家庭分关文书是研究家庭兴衰沉浮和财产分配制度最重要的第一手材料。本文通过对90份清水江分关文书的深入考察,仔细探析了18至20世纪中期该区域家庭分关的具体原因、分配原则、分配方式,以及分配频率。通过本文可以看出清水江地区分家析产制度,及家庭发展演变的生动历程。

关键词：清水江流域分关文书家庭分家析产

决胜小康阶段西南民族地区农村可持续生计问题研究

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丽江师范高等专科学校学报 2018年第1期3卷 89-94页

作者：时香丽桂林理工大学马克思主义学院广西桂林541006

党的十九大会议上,习近平总书记提出我国在脱贫攻坚上要取得决定性胜利,从现在到二0二0年,是全面建成小康社会决胜期.西南民族地区农村由于生计资本的存有量比较薄弱,使得脱贫难度相对其他地方更大.本文用DFID的可持续生计分析框架中的... 详细信息

党的十九大会议上,习近平总书记提出我国在脱贫攻坚上要取得决定性胜利,从现在到二0二0年,是全面建成小康社会决胜期.西南民族地区农村由于生计资本的存有量比较薄弱,使得脱贫难度相对其他地方更大.本文用DFID的可持续生计分析框架中的五个生计资本来深入分析该地区农村贫苦户生存出现的问题,解剖其原因,并提出相应的解决对策：人力资本的大力开发与充分利用;树立生态意识,实现自然资本的可持续利用;加强物质资本的建设;扩宽资金资本的途径,提高资金资本的有效利用率;加强沟通,认真落实社会资本,以实现西南民族地区农村的可持续发展,最终实现全面脱贫.

关键词：西南民族地区农村可持续生计问题对策

Tailor-made high elasticity and low-hysteresis hydrogels based on asymmetric H-bonding crosslinking for wearable applications

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Science China Chemistry 2025年

作者： Xiaofang shi Nan shi Miaomiao Dang Chengyu Ji Yingjie li Peiyi Wu Zhiguo Hu Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals Henan Engineering Laboratory of Chemical Pharmaceutical and Biomedical Materials School of Chemistry and Chemical Engineering Henan Normal University State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Chemistry Chemical Engineering and Biotechnology & Center for Advanced Low-dimension Materials Donghua University

The conventional method of fabricating hydrogels constantly confronts the conflict between elasticity and toughness, limiting their repetitive application. Achieving the desired elasticity through a simple and low-cost approach is a significant challenge for hydrogels, particularly through rational molecular design. Here, low-hysteresis and high-toughness hydrogels are developed from the design of a new feature monomer, N-acryloylethylsemicarbazide (NACE). Based on a concept of “asymmetric Hbonding design”, the unique double and triple H-bonding of NACE can result in a novel asymmetric crosslinking polymer with alternating strong and weak H-bonding regions. The NACE is copolymerized with acrylamide (AM) to regulate the mechanical properties of hydrogel via H-bonding density. The P(NACE-AM) ionic hydrogels are obtained simply and rapidly via one-step photopolymerization without a chemical cross-linking agent. The P(NACE-AM) hydrogels combine superb mechanical elasticity and toughness, and excellent ionic conductivity, showing great potential as durable ionic conductive devices for wearable utilization.

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Comparative proteomic analysis of plasma exosomes reveals the functional contribution of N-acetyl-alpha-glucosaminidase to Parkinson’s disease

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Neural Regeneration Research 2025年第10期20卷 2998-3012页

作者： Yuan Zhao Yidan Zhang Xin liu Jian Zhang Ya Gao Shuyue li Cui Chang xiang liu Guofeng Yang Department of Geriatrics Second Hospital of Hebei Medical UniversityShijiazhuangHebei ProvinceChina Department of Neurosurgery The Second Hospital of Hebei Medical UniversityShijiazhuangHebei ProvinceChina

Parkinson’s disease is the second most common progressive neurodegenerative disorder,and few reliable biomarkers are available to track disease *** proteins,DNA,mRNA,and lipids carried by exosomes reflect intracellular changes,and thus can serve as biomarkers for a variety of *** this study,we investigated alterations in the protein content of plasma exosomes derived from patients with Parkinson’s disease and the potential therapeutic roles of these proteins in Parkinson’s *** a tandem mass tag-based quantitative proteomics approach,we characterized the proteomes of plasma exosomes derived from individual patients,identified exosomal protein signatures specific to patients with Parkinson’s disease,and identified N-acetyl-alpha-glucosaminidase as a differentially expressed protein.N-acetyl-alpha-glucosaminidase expression levels in exosomes from the plasma of patients and healthy controls were validated by enzyme-linked immunosorbent assay and western *** results demonstrated that the exosomal N-acetyl-alpha-glucosaminidase concentration was not only lower in Parkinson’s disease,but also decreased with increasing Hoehn-Yahr stage,suggesting that N-acetyl-alpha-glucosaminidase could be used to rapidly evaluate Parkinson’s disease ***,western blot and immunohistochemistry analysis showed that N-acetyl-alpha-glucosaminidase levels were markedly reduced both in cells treated with 1-methyl-4-phenylpyridinium and cells overexpressingα-synuclein compared with control ***,N-acetyl-alpha-glucosaminidase overexpression significantly increased cell viability and inhibitedα-synuclein expression in 1-methyl-4-phenylpyridinium-treated *** together,our findings demonstrate for the first time that exosomal N-acetyl-alpha-glucosaminidase may serve as a biomarker for Parkinson’s disease diagnosis,and that N-acetyl-alpha-glucosaminidase may reduceα-synuclein expression and 1-methyl-4-phenylpyridinium-induced n

关键词： biomarker diagnosis exosomes N-acetyl-alpha-glucosaminidase Parkinson’s disease proteomic α-synuclein

Cooperative output regulation of heterogeneous directed multi-agent systems: a fully distributed model-free reinforcement learning framework

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Science China(Information Sciences) 2025年

作者： Xiongtao shi Yanjie li Chenglong DU Huiping li Chaoyang CHEN Weihua GUI Guangdong Key Laboratory of Intelligent Morphing Mechanisms and Adaptive Robotics School of Mechanical Engineering and Automation Harbin Institute of Technology (Shenzhen) School of Automation Central South University School of Marine Science and Technology Northwestern Polytechnical University School of Information and Electrical Engineering Hunan University of Science and Technology

In this paper, the cooperative output regulation (COR) problem of a class of unknown heterogeneous multi-agent systems (MASs) with directed graphs is studied via a model-free reinforcement learning (RL) based fully distributed eventtriggered control (ETC) strategy. First, we consider the scenario that the exosystem is accessible globally to all agents, an internal model-based augmented algebraic Riccati equation (AARE) is constructed, and its solution is learned by the proposed model-free RL algorithm via online input-output data. Further, for the scenario that the exosystem is accessible only to its adjacent followers, the distributed observers are designed for each agent to get the state of the exosystem, and an internal modelbased fully distributed adaptive ETC protocol is then synthesized to construct the corresponding AARE, and the feedback gain matrix is learned in a model-free fashion. The model-free RL-based control protocol proposed in this paper can not only remove the prior knowledge of agents’ dynamics, but also release the dependence on global information by the adaptive event-triggered mechanism (ETM) and the new graph-based Lyapunov function. Finally, simulation results are illustrated to show the feasibility and effectiveness of the proposed control scheme.

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