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书写与记忆:晚清变局视野中的北宋

文学评论 2024年第1期 215-223页

作者：宋雪山东大学文学院

辛酉政变后,慈禧主导的两宫垂帘有意取法北宋宣仁太后临朝史事,为统治正当性寻求历史依据;甲午战后,新旧双方围绕王安石变法的功过问题展开论辩,为自身政治行动立言。在相似的社会语境下,北宋的政治经验和历史记忆,成为晚清朝野共同关... 详细信息

辛酉政变后,慈禧主导的两宫垂帘有意取法北宋宣仁太后临朝史事,为统治正当性寻求历史依据;甲午战后,新旧双方围绕王安石变法的功过问题展开论辩,为自身政治行动立言。在相似的社会语境下,北宋的政治经验和历史记忆,成为晚清朝野共同关注的话语资源。戊戌变法以失败告终,但在“史统”与“道统”的影响下,时人在古今对照的书写中,仍体现出强烈的政治隐喻和时事关怀。借助报刊、日记、政论、传记、诗文、戏曲等材料,返回历史现场,在旧史记忆和现实政治之间,考察清季北宋书写背后的文化意涵与思想建构,亦可展现历史对照模式下的文学张力和士人心态。

关键词：戊戌维新王安石变法异代同调文学书写历史记忆

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数字产业创新对产业结构现代化的影响研究

科学学研究 2024年第1期42卷 170-182页

作者：宋培白雪洁李琳艾阳南开大学经济学院天津300071 南开大学经济与社会发展研究院天津300071 南开大学数字经济交叉科学中心天津300071

科技创新是“中国式现代化”建设的第一动力。基于“要素链-产业链-价值链”的逻辑框架,剖析数字产业创新助推产业结构现代化的内在机理,利用中国2009-2017年30个省份的面板数据展开实证检验。研究发现:中国数字产业创新水平呈“质”与... 详细信息

科技创新是“中国式现代化”建设的第一动力。基于“要素链-产业链-价值链”的逻辑框架,剖析数字产业创新助推产业结构现代化的内在机理,利用中国2009-2017年30个省份的面板数据展开实证检验。研究发现:中国数字产业创新水平呈“质”与“量”并驾齐驱的逐年上升趋势,但区域间差距较大,产生了“数字鸿沟”现象;2012年之前,中国经济结构存在“脱实向虚”倾向,进入新常态后,产业结构不断向着先进制造业和生产性服务业占比持续上升的现代服务经济转型;中国数字产业创新显著推动了产业结构现代化,该结论在采用工具变量、调整样本范围、替换主要解释变量、考虑遗漏变量后仍成立;数字产业创新对产业结构现代化的影响具有显著的区域异质性和时间异质性;数字产业发展和地区生产率提升是数字产业创新推动产业结构现代化的重要途径。上述研究结论为中国抢占数字经济发展机遇,构建现代产业体系提供经验证据。

关键词：数字产业创新产业结构现代化中国式现代化数字经济科技创新

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Structural and functional design of geopolymer adsorbents:a review

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Tungsten 2024年第1期6卷 48-76页

作者： Hai-Ze Jin Chen-Xi Qiu Yan-song Li Bao Liu Jun-Yi Liu Qiao Chen xue-Feng Lu Cui-Xia Li Qi-Kun Wang School of Materials Science and Engineering Lanzhou University of TechnologyLanzhou 730050China State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals Lanzhou 730050China Shenyang Nonferrous Metals Research Institute Co. LTDShenyang 110000China Automotive Engineering Research Institute Jiangsu UniversityZhenjiang 212013China School of Materials Science and Engineering Jingdezhen Ceramic UniversityJingdezhen 333403China

The water pollution derived from the discharge of heavy metals,antibiotics,dyes and surfactants wastewater,*** seriously affected human survival and ecological *** an efficient and low-cost physical wastewater treatment process,the adsorption is a continuous hot spot in related scientific research and *** are non-crystal or semi-crystalline materials with high-efficiency adsorption performance due to the alkali metal ions that balance the electronegative aluminosilicate skeleton can be efficiently replaced by other cations in the aqueous *** related studies of different application conditions,service objects and morphological differences of geopolymer adsorbents based on structure-function design have been in-depth exploration and *** review aims to summarize the research progres s of the structure-function design based on the geopolymerization mechanism and kinetics and service *** overview of service characteristics and progress of geopolymers in the wastewater treatment field(e.g.,dyes,heavy metals,radionuclides,surfactants,antibiotics,ammonium,phosphorus,nitrogen and CO_(2),etc.)are systematically *** the evolution and development of morphological differences and the relationship of structure-function design of geopolymer adsorbents were compared and ***,the challenge worth overcoming,the trends worth considering and perspectives worth developing are highlighted.

关键词： Geopolymer Wastewater Adsorption Structure-function design Application

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Docosahexaenoic acid-acylated astaxanthin monoester enhances microglial autophagy for ameliorating amyloid-β load and cognitive deficits in models of Alzheimer’s disease

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Food Science and Human Wellness 2024年

作者： Xiaoxu Wang Bo Dong Yu song Zhigao Wang Yuming Wang Jie Xu Changhu xue State Key Laboratory of Marine Food Processing & Safety Control， College of Food Science and Engineering， Ocean University of China College of Marine Life Sciences， Ocean University of China Qingdao National Laboratory for Marine Science and Technology

Autophagy directly regulates the amyloid-peptides （Aβ） clearance， and its dysfunction occurs in the early pathogenesis of Alzheimer’s disease （AD）. We previously reported that docosahexaenoic acid-acylated astaxanthin monoester （AST-DHA） showed neuroprotection against AD pathology. However， its in-depth mechanism and autophagic responses in AD brains are poorly understood. Herein， SH-SY5Y cells overexpressing the APP gene were established to preliminarily evaluate the actions of AST-DHA on reducing Aβ1-42levels and regulating autophagy. In microglial BV2 cells， AST-DHA and free astaxanthin （F-AST） recovered p62 and LC3II/I levels， and restored autophagy flux by rescuing the late phase of microglial autophagy. Notably， autophagic inhibitor bafilomycin A1 blunted the abilities of AST-DHA to reduce Aβ1-42and fibral Aβ， suggesting that AST-DHA probably promoted Aβ clearance in a microglial autophagy-dependent manner. Further studies in APP/PS1 mice verified that dietary AST-DHA and F-AST promoted Aβ phagocytosis via microglial autophagy. Significant decreases of Iba1 and p62 levels were observed around Aβ plaque in the hippocampus and cortex using triple fluorescence staining. Furthermore， AST-DHA exhibited superior performance over F-AST in restoring autophagic dysfunction， ameliorating Aβ burden and cognitive deficit. Our findings suggest a possible mechanism of AST-DHA in improving AD by which it restores microglial autophagy to facilitate cerebral Aβ clearance. It supports the future application of AST-DHA as an autophagic regulator in maintaining brain function.

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Mechanistic research:Selenium regulates virulence factors,reducing adhesion ability and inflammatory damage of Helicobacter pylori

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World Journal of Gastroenterology 2024年第1期30卷 91-107页

作者： Chun Qin Gan-Rong Huang ai-Xing Guan Wen-Ting Zhou Hao Chen Pei-Pei Luo Xian-Ke Luo Yan-Qiang Huang Zan-song Huang Guangxi Technology Innovation Cooperation Base of Prevention and Control Pathogenic Microbes with Drug Resistance Youjiang Medical University for NationalitiesBaise 533000Guangxi Zhuang Autonomous RegionChina Department of Digestive Diseases Affiliated Hospital of Youjiang Medical University for NationalitiesBaise 533000Guangxi Zhuang Autonomous RegionChina Key Laboratory of the Prevention and Treatment of Drug Resistant Microbial Infecting Youjiang Medical University for NationalitiesBaise 533000Guangxi Zhuang Autonomous RegionChina Department of Pathology Wannan Medical CollegeWuhu 241002Anhui ProvinceChina Department of Gastroenterology Wujin People’s Hospital affiliated to Jiangsu UniversityChangzhou 213004Jiangsu ProvinceChina Department of Gastroenterology Guangzhou Liwan District People's HospitalGuangzhou 510370Guangdong ProvinceChina

BACKGROUND The pathogenicity of Helicobacter pylori is dependent on factors including the environment and the *** selenium is closely related to pathogenicity as an environmental factor,the specific correlation between them remains *** To investigate how selenium acts on virulence factors and reduces their *** *** strains were induced by sodium *** expression of cytotoxin-associated protein A(CagA)and vacuolating cytotoxin gene A(VacA)was determined by quantitative PCR and Western *** was used to analyze CagA,CagM,CagE,Cag1,Cag3,and CagT.C57BL/6A mice were infected with the attenuated strains subjected to sodium selenite induction,and *** colonization,inflammatory reactions,and the cell adhesion ability of *** were *** CagA and VacA expression was upregulated at first and then downregulated in the *** strains after sodium selenite *** expression was significantly and steadily downregulated after the 5th cycle(10 d).Transcriptome analysis revealed that sodium selenite altered the levels affect *** virulence factors such as CagA,CagM,CagE,Cag1,Cag3,and *** these factors,CagM and CagE expression was continuously downregulated and further downregulated after 2 h of induction with sodium ***,CagT expression was upregulated before the 3rd cycle(6 d)and significantly downregulated after the 5th ***1 and Cag3 expression was upregulated and downregulated,respectively,but no significant change was observed by the 5th cycle.C57BL/6A mice were infected with the attenuated strains subjected to sodium selenite *** extent of *** colonization in the stomach increased;however,sodium selenite also induced a mild inflammatory reaction in the gastric mucosa of ***-infected mice,and the cell adhesion ability of *** was significantly *** These results demonstrate that *** displayed virulence attenuation after

关键词： Helicobacter pylori Sodium selenite Virulence factors Adherence Inflammation

Berry-Esseen bounds for self-normalized sums of locally dependent random variables

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Science China Mathematics 2024年第11期67卷 2629-2652页

作者： Zhuo-song Zhang Department of Statistics and Data Science Southern University of Science and Technology

The Berry-Esseen bound provides an upper bound on the Kolmogorov distance between a random variable and the normal *** this paper,we establish Berry-Esseen bounds with optimal rates for self-normalized sums of locally dependent random variables,assuming only a second-moment *** proof leverages Stein's method and introduces a novel randomized concentration inequality,which may also be of independent interest for other *** main results have applied to self-normalized sums of m-dependent random variables and graph dependency models.

关键词： Berry-Esseen bounds self-normalized sums localdependence $m$-dependence graph dependency

Optimizing multi-parameter distributed fiber sensors:a hybrid Rayleigh-Brillouin-Raman System approach

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Light(Science & Applications) 2024年第3期13卷 393-395页

作者： Kwang Yong song Dept.of Physics Chung-Ang University84 Heukseok-roDongjak-guSeoul 06974Korea

An optimized single-end hybrid Rayleigh,Brillouin,and Raman distributed fiber sensing system has been developed for simultaneous measurement of multiple *** system integrates 3-bit pulse coding for the Raman signal and the Brillouin amplification of the Rayleigh-backscattered signal,discriminating strain,temperature,and vibration using a single sensing fiber.

关键词： fiber Rayleigh signal

Analysis of a Strong Sandstorm Process in Ulanqab City

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Meteorological and Environmental Research 2024年第1期15卷 8-11页

作者： Biyun LI Yu xue Yanni song Ulanqab Meteorological Bureau Ulanqab 012000China

Based on NCEP reanalysis data,EDAS data and ground observation data,the causes of a strong sandstorm process in Ulanqab City from March 14 to 15,2021 were *** analysis shows that"3.15"sandstorm,a sandstorm process accompanied by northwest gale behind the front,was caused by strong cold air in the *** the early stage,the Mongolian cyclone resulted in the increase of temperature and decrease of pressure on the *** a strong surface cold high pressure at the rear of the cyclone invaded the city,a strong pressure gradient between high and low pressure provided dynamic conditions for the sandstorm *** transit of the surface cold front was the sign of the sandstorm outbreak,and the downward transmission of momentum at high altitudes increased the wind speed near the surface.

关键词： Cold front Gradient wind Downward transportation of momentum

Effect of nano-carbon black content on wetting phenomenon of molten steel and alumina-carbon ceramic filter substrates

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Journal of Iron and Steel Research International 2024年第8期31卷 1900-1913页

作者： Jin-wen song Wen Yan Zhe Chen Ying Liu Shao-song Hong The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081HubeiChina National-provincial Joint Engineering Research Center of High Temperature Materials and Lining Technology Wuhan University of Science and TechnologyWuhan 430081HubeiChina Jiangsu Sheng Nai New Materials Co. Ltd.Taizhou 225503JiangsuChina

The effect of nano-carbon black content(O,8 and 12 wt.%)on the wettability of molten steel on Al_(2)O_(3)-C substrates was investigated by the sessile drop wetting method at 1500℃ under argon *** the beginning of the wetting experiment,the contact angle decreased with the increase in nano-carbon black *** the wetting experiment progressed,FeAl_(2)0_(4) layer and sheet Al_(2)O_(3) layer were found at the interface between the molten steel and the Al_(2)O_(3)-C substrates with O and 8 wt.% nano-carbon black content,and the contact angle deceased with *** the content of nano-carbon black was 12 wt.%,a large number of nano-Al_(2)O_(3) whiskers were observed,which made the contact angle between the molten steel and Al_(2)O_(3)-C substrate become *** on the scanning electron microscope and energy dispersive spectrometry results,the formation mechanism of FeAl2O4 layer and Al_(2)O_(3) layer and the interfacial reaction mechanism were proposed.

关键词： Contact angle Nano-carbon black Al_(2)O_(3)-C substrate Molten steel Interfacial reaction