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Engineering a high-barrier d-f single-molecule magnet centered with hexagonal bipyramidal Dy(Ⅲ)unit

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Science China Chemistry 2024年第10期67卷 3291-3298页

作者： Wei Deng Chan-ying yao Yan-Cong Chen ying-Qian Zhou Shan-Nan Du Jun-Liang Liu Ming-Liang Tong Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of ChemistryInstitute of Green Chemistry and Molecular EngineeringGuangdong Basic Research Center of Excellence for Functional Molecular EngineeringSun Yat-sen UniversityGuangzhou 510006China

In the pursuit of high-performance single-molecule magnets(SMMs),incorporating intramolecular magnetic coupling emerges as a pivotal *** these,d-f SMMs have garnered significant attention due to their remarkable versatility,which lies in their ability to tune coordination environments and facilely substitute metal ***,achieving performance-centric d-f SMMs through the synergistic interplay between highly anisotropic f ions and d-f magnetic interactions remains a formidable *** mononuclear hexagonal bipyramidal(D_(6h))Dy^(Ⅲ)SMMs have been successfully isolated,the exploration of d-f SMMs featuring D_(6h)-lanthanide metal centers remains uncharted *** this study,we employed planar bipodal ligands in conjunction with“staple-like”axial phenoxide ligands to synthesize the first hexagonal bipyramidal d-f ***,this compound exhibits alternating-current magnetic susceptibilities peaking up to 68 K with an energy barrier surpassing 1,200 K,thus establishing a new benchmark within the heterometallic d-f SMM landscape inclusive of complexes with diamagnetic d metals and paramagnetic f ***,the ferromagnetic interaction at the d-f sites engenders oscillating relaxation times contingent on the magnetic field—a characteristic distinct from mononuclear *** findings shed light on a deliberate design approach for d-f SMMs,emphasizing the cooperative utilization of high-barrier lanthanide modules alongside d ions through magnetic *** synergy significantly enhances and diversifies the magnetic dynamics of these intriguing molecular systems.

关键词： single-molecule magnets magnetic coupling crystal engineering hexagonal bipyramid energy barrier

Evolution of the porous structure for phosphoric acid etching carbon as cathodes in Li–O_(2) batteries:Pyrolysis temperature-induced characteristics changes

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Carbon Energy 2024年第1期6卷 172-181页

作者： Feiyang Yang ying yao Yunkai Xu Cong Wang Meiling Wang Jingjie Ren Cunzhong Zhang Feng Wu Jun Lu Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and EngineeringBeijing Institute of TechnologyBeijingChina Beijing Institute of Technology Chongqing Innovation Center ChongqingChina College of Chemical and Biological Engineering Zhejiang UniversityHangzhouChina

Although biomass-derived carbon(biochar)has been widely used in the energy field,the relation between the carbonization condition and the physical/chemical property of the product remains ***,we revealed the carbonization condition's effect on the morphology,surface property,and electrochemical performance of the obtained *** open slit pore structure with shower-puff-like nanoparticles can be obtained by finely tuning the carbonization temperature,and its unique pore structure and surface properties enable the Li–O_(2) battery with cycling longevity(221 cycles with 99.8%Coulombic efficiency at 0.2 mA cm^(−2) and controlled discharge–charge depths of 500 mAh g^(−1))and high capacity(16,334 mAh g^(−1) at 0.02 mA cm^(−2)).This work provides a greater understanding of the mechanism of the biochar carbonization procedure under various pyrolysis conditions,paving the way for future study of energy storage devices.

关键词： biomass Li-O_(2) battery oxygen catalysts porous carbon temperature parameters

Germ cell-specific deletion of Pex3 reveals essential roles of PEX3-dependent peroxisomes in spermiogenesis

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The Journal of Biomedical Research 2024年第1期38卷 24-36页

作者： Yejin yao Baolu Shi Xiangzheng Zhang Xin Wang Shuangyue Li ying yao Yueshuai Guo Dingdong Chen Bing Wang Yan Yuan Jiahao Sha Xuejiang Guo State Key Laboratory of Reproductive Medicine and Offspring Health Nanjing Medical UniversityNanjingJiangsu 211166China Reproductive and Genetic Branch the First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui 230001China State Key Laboratory of Reproductive Medicine and Offspring Health Women's Hospital of Nanjing Medical UniversityNanjing Maternity and Child Health Care HospitalNanjing Medical UniversityNanjingJiangsu 211166China.

Peroxisomes are organelles enclosed by a single membrane and are present in various *** abruption of peroxisomes is correlated with peroxisome biogenesis disorders and single peroxisomal enzyme deficiencies that induce diverse diseases in different ***,little is known about the protein compositions and corresponding roles of heterogeneous peroxisomes in various *** transcriptomic and proteomic analyses,we observed heterogenous peroxisomal components among different organs,as well as between testicular somatic cells and different developmental stages of germ *** Pex3 is expressed in both germ cells and Sertoli cells,we generated Pex3 germ cell-and Sertoli cell-specific knockout *** Pex3 deletion in Sertoli cells did not affect spermatogenesis,the deletion in germ cells resulted in male sterility,manifested as the destruction of intercellular bridges between spermatids and the formation of multinucleated giant *** analysis of the Pex3-deleted spermatids revealed defective expressions of peroxisomal proteins and spermiogenesis-related *** findings provide new insights that PEX3-dependent peroxisomes are essential for germ cells undergoing spermiogenesis,but not for Sertoli cells.

关键词： male infertility spermiogenesis peroxisome oxidative stress PEX3

Trimethylamine N-oxide aggravates vascular permeability and endothelial cell dysfunction under diabetic condition:in vitro and in vivo study

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International Journal of Ophthalmology(English edition) 2024年第1期17卷 25-33页

作者： Jia-Yi Jiang Wei-Ming Liu Qiu-Ping Zhang Hang Ren Qing-ying yao Gao-Qin Liu Pei-Rong Lu Department of Ophthalmology the First Affiliated Hospital of Soochow UniversitySuzhou 215006Jiangsu ProvinceChina Suzhou Center for Disease Prevention and Control Suzhou 215004Jiangsu ProvinceChina

AIM:To provide the direct evidence for the crucial role of trimethylamine N-oxide(TMAO)in vascular permeability and endothelial cell dysfunction under diabetic ***:The role of TMAO on the in vitro biological effect of human retinal microvascular endothelial cells(HRMEC)under high glucose conditions was tested by a cell counting kit,wound healing,a transwell and a tube formation *** inflammation-related gene expression affected by TMAO was tested by real-time polymerase chain reaction(RT-PCR).The expression of the cell junction was measured by Western blotting(WB)and immunofluorescence *** addition,two groups of rat models,diabetic and non-diabetic,were fed with normal or 0.1%TMAO for 16wk,and their plasma levels of TMAO,vascular endothelial growth factor(VEGF),interleukin(IL)-6 and tumor necrosis factor(TNF)-αwere *** vascular permeability of rat retinas was measured using FITC-Dextran,and the expression of zonula occludens(ZO)-1 and claudin-5 in rat retinas was detected by WB or immunofluorescence ***:TMAO administration significantly increased the cell proliferation,migration,and tube formation of primary HRMEC either in normal or high-glucose ***-PCR showed elevated inflammation-related gene expression of HRMEC under TMAO stimulation,while WB or immunofluorescence staining indicated decreased cell junction ZO-1 and occludin expression after high-glucose and TMAO *** rats showed higher plasma levels of TMAO as well as retinal vascular leakage,which were even higher in TMAO-feeding diabetic ***,TMAO administration increased the rat plasma levels of VEGF,IL-6 and TNF-αwhile decreasing the retinal expression levels of ZO-1 and ***:TMAO enhances the proliferation,migration,and tube formation of HRMEC,as well as destroys their vascular integrity and tight *** also regulates the expression of VEGF,IL-6,and TNF-α.

关键词： diabetic model trimethylamine N-oxide inflammation endothelial dysfunction rats retinal microvascular endothelial cells

梁赞诺夫版《共产党宣言》的历史价值和时代意义

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马克思主义理论学科研究 2024年第2期10卷 60-70页

作者：姚颖中共中央党史和文献研究院第五研究部北京100017

梁赞诺夫版《共产党宣言》是俄共(布)中央马克思恩格斯研究院编辑出版的第一部马克思主义经典著作出版物。该俄译本收录了当时能找到的所有与《共产党宣言》有关的历史文献,还包含梁赞诺夫为《共产党宣言》编写的63条注释。从结构和内... 详细信息

梁赞诺夫版《共产党宣言》是俄共(布)中央马克思恩格斯研究院编辑出版的第一部马克思主义经典著作出版物。该俄译本收录了当时能找到的所有与《共产党宣言》有关的历史文献,还包含梁赞诺夫为《共产党宣言》编写的63条注释。从结构和内容上看,这部单行本开创了社会主义国家成立后马克思主义经典著作编纂与传播史上科学编辑马克思、恩格斯著作遗产的先河,体现了梁赞诺夫独特的编辑理念和明晰的编辑原则。从注释上看,不仅其内容具有很高的理论研究价值,而且对于今天我们编译和研究马克思主义经典著作具有一定的启示借鉴意义。

关键词：共产党宣言梁赞诺夫注释

Effect of Jianpi Shengxue Tablet on Iron Metabolism and Nutritional Status in Patients with Renal Anemia:A Prospective,Randomized,Open,Parallel Controlled and Multicenter Clinical Study

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Current Medical Science 2024年第3期44卷 603-610页

作者： Juan YANG Meng-yuan LIANG Yu LI Hao ZHANG Wei LI Jing LV Li-ping DONG Jing-song JIN Cheng YANG Qing-hong ZHANG Li LONG Rong ZOU Yi GAO Dan SONG Chun-qin PAN ying yao Xiao-lin ZHAN Xiao-hui WANG Department of Nephrology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China Department of Nephrology The First People’s Hospital of GuiyangGuiyang550000China Department of Nephrology The Third Xiangya HospitalCentral South UniversityChangsha410000China Department of Nephrology The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an710061China Department of Nephrology Wuhan No. 4 HospitalWuhan430033China Department of Nephrology Hubei Provincial Hospital of Traditional Chinese MedicineWuhan430060China Department of Nephrology Central Theater General Hospital of PLAWuhan430064China Department of Nephrology Taihe HospitalShiyan442000China Department of Nephrology Third People’s Hospital of Hubei ProvinceWuhan430033China Department of Nephrology Hubei Province Integrated Traditional Chinese and Western Medicine Hospital of Hubei provinceWuhan430024China Department of Nephrology Xi’an No.3 HospitalAffiliated Hospital of Northwest UniversityXi’an710000China Department of Nephrology Shenzhen Guangming District People’s HospitalShenzhen518000China Department of Nephrology Xiantao First People’s HospitalXiantao433000China Department of Nutrition Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China Department of Nephrology Huangshi Central HospitalHuangshi435000China Department of Nephrology The Fifth Hospital of WuhanWuhan430050China

Objective This study aimed to analyze the clinical efficacy of the Jianpi Shengxue tablet for treating renal *** A total of 200 patients with renal anemia from December 2020 to December 2022 were enrolled and randomly divided into two *** in the control group were treated with polysaccharide-iron complex,and those in the experimental group were administered Jianpi Shengxue *** 8 weeks of continuous treatment,the therapeutic outcomes regarding anemia were compared between the two *** After treatment,the red blood cell(RBC)count,hematocrit(HCT),reticulocyte percentage(RET),ferritin(SF),serum iron(SI),transferrin saturation(TSAT),and serum albumin(ALB)all increased(P<0.01),and the clinical symptom score and total iron binding capacity decreased(P<0.01)in the experimental ***,the improvements in RBC,HCT,RET,SF,SI,TAST,ALB,and clinical symptoms(fatigue,anorexia,dull skin complexion,numbness of hands and feet)in the experimental group were significantly greater than those in the control group(P<0.05).The total effective rate for treating renal anemia was significantly higher in the experimental group than in the control group(P<0.01).Conclusion The Jianpi Shengxue tablet demonstrates efficacy in treating renal anemia,leading to significant improvements in the laboratory examination results and clinical symptoms of patients with renal anemia.

关键词： Jianpi Shengxue tablet renal anemia randomized open parallel control multicenter clinical study

垄断监管、责任界定、利益平衡——数字平台治理的域外经验与启示

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编辑之友 2024年第8期 99-104页

作者：陈红梅张耀英华东师范大学传播学院上海200241

近年来,数字平台的发展带来了新的监管领域,也产生了一些治理难题。如何界定平台的垄断行为,如何督促平台履行社会责任、防止其侵犯公共价值和公共利益等都是平台治理的难点。欧盟、美国、澳大利亚及加拿大等域外国家在数字平台治理方... 详细信息

近年来,数字平台的发展带来了新的监管领域,也产生了一些治理难题。如何界定平台的垄断行为,如何督促平台履行社会责任、防止其侵犯公共价值和公共利益等都是平台治理的难点。欧盟、美国、澳大利亚及加拿大等域外国家在数字平台治理方面的经验显示,在对数字平台进行反垄断的过程中,借用市场支配行为及滥用市场支配地位行为界定垄断的方式有一定的合理性,可将其作为判断有关监管部门何时介入反垄断规制的标准;通过明确平台的“守门人”角色并建构分层责任体系,可以激励平台进行内部监管,促使数字平台成为平台治理过程中重要的参与者;通过建立平台与媒体间的议价协商机制并引入政府监管,可以平衡两者间的利益,更好地维护公共价值和公共利益。这些治理思路和举措为我国数字平台治理提供了借鉴。

关键词：数字平台平台治理公共利益平台垄断

同方期刊数据库博看期刊评论

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水利工程运行维护与管理问题分析及对策研究

现代工程科技 2024年第10期3卷 125-128页

作者：应耀安徽省淠史杭灌区管理总局安徽六安237005

随着水利工程规模的扩大,运行维护和管理面临多重挑战,特别是在技术更新、资金投入和管理体系方面。分析了水利工程运行维护与管理中存在的问题,并提出改善措施。研究方法包括系统分析现有问题和研究实际案例。通过这些分析,探讨了提高... 详细信息

随着水利工程规模的扩大,运行维护和管理面临多重挑战,特别是在技术更新、资金投入和管理体系方面。分析了水利工程运行维护与管理中存在的问题,并提出改善措施。研究方法包括系统分析现有问题和研究实际案例。通过这些分析,探讨了提高水利工程运行效率和管理水平的可能路径,探索涉及技术创新的应用、资金筹集与分配的优化以及管理体系的完善。可为水利工程的运行维护和管理提供更有效的理论和实践指导,以期解决水利工程中的核心问题,提高整体效率和可持续性。

关键词：水利工程运行维护管理问题研究

我国古籍保护与开发利用的关系辨析及立法建议

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国家图书馆学刊 2024年第1期33卷 25-32页

作者：胡洁洪琰向辉姚迎国家图书馆

深入剖析古籍“藏用矛盾”现象产生的原因,调研梳理我国古籍工作制度的相关规定和业界实践需求,在此基础上提出四项古籍专门立法建议:一是确立“利用主导、藏用并重”的古籍工作原则,二是根据存藏机构的职责制定差异化古籍保护和开发利... 详细信息

深入剖析古籍“藏用矛盾”现象产生的原因,调研梳理我国古籍工作制度的相关规定和业界实践需求,在此基础上提出四项古籍专门立法建议:一是确立“利用主导、藏用并重”的古籍工作原则,二是根据存藏机构的职责制定差异化古籍保护和开发利用策略,三是在加强古籍再生性保护的基础上推动古籍的多元化开发利用,四是以科学管理促进古籍的妥善保存与有效利用。参考文献18。

关键词：古籍保护古籍开发利用藏用矛盾古籍立法