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Stereoselective Self-Assembly of Chiral Metalla[2]Catenanes and Lemniscular Macrocycles

CCS Chemistry 2024年第8期6卷 2000-2010页

作者： Shu-jin bao Hai-Ning Zhang Guo-Xin jin Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials State Key Laboratory of Molecular Engineering of PolymersDepartment of ChemistryFudan UniversityShanghai 200433

Designing and stereoselectively constructing chiral mechanically interlocked molecules(MIMs)is a goal that many chemists are pursuing due to their potential in the development of functional molecular machines involved in catalysis,sensing,and chiroptical ***,the synthesis of enantiopure supramolecular entities with crystallographic structures remains ***,the stereoselective self-assembly of chiral metalla[2]catenanes interlocked by two D-shaped macrocycles was realized by combining long binuclear half-sandwich organometallic Cp*Rh^(III)(Cp*=η^(5)-pentamethylcyclopentadienyl)clip and ditopic monodentate ligand incorporating L-leucine *** resulting metalla[2]catenane displayed unique co-conformational mechanical helical chirality characteristics arising from the chirality transfer of the chiral ***,decreasing the length of the binuclear Cp*Rh^(III)clip and adjusting the steric hindrance of the amino-acid side chains(L-alanine and L-phenylalanine)in the ligands resulted in two lemniscular macrocycles with left-handed(M)-twisted conformational *** the best of our knowledge,the synthesized macrocycles are the first family of homochiral abnormal lemniscate-shaped organometallic macrocycles featuring figure-eight ***[2]catenanes and macrocycles with opposite chirality were also generated by employing corresponding D-amino acid ligands,as evidenced by single-crystal X-ray diffraction,nuclear magnetic resonance,mass,and circular dichroism *** present study demonstrates that homochiral MIMs can be accessed readily using amino acid–containing ligands through rational molecular design.

关键词： stereoselective synthesis chirality metallacatenanes twisted macrocycles aminoacid residues

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Testing the first law of black hole mechanics with gravitational waves

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Science China(Physics,Mechanics & Astronomy) 2024年第10期67卷 76-82页

作者： Chao-Wan-Zhen Wang jin-bao Zhu Guo-Qing Huang Fu-Wen Shu Department of Physics Nanchang UniversityNanchang 330031China Center for Relativistic Astrophysics and High Energy Physics Nanchang UniversityNanchang 330031China GCAP-CASPER Physics DepartmentBaylor UniversityWaco 76798-7316USA

The successful observation of gravitational waves has provided humanity with an additional method to explore the universe,particularly black *** this study,we utilize data from LIGO and Virgo gravitational wave observations to test the first law of black hole mechanics,employing two different *** consider the secondary compact object as a perturbation to the primary black hole before the merger,and the remnant black hole as a stationary black hole after the *** the pre-merger and post-merger analysis,our results demonstrate consistency with the first law,with an error level of approximate 25%at a68%credibility level for *** the full inspiral-merger-ringdown analysis,our results show consistency with the first law of black hole mechanics,with an error level of about 6%at a 68%credibility level and 10%at a 95%credibility level for ***,we observe that the higher the mass ratio of the gravitational wave source,the more consistent our results are with the first law of black hole ***,our study sheds light on the nature of compact binary coalescence and their implications for black hole mechanics.

关键词： gravitational waves black hole mechanics data analysis ringdown

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A Bregman-Style Improved ADMM and its Linearized Version in the Nonconvex Setting:Convergence and Rate Analyses

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Journal of the Operations Research Society of China 2024年第2期12卷 298-340页

作者： Peng-Jie Liu jin-bao Jian Hu Shao Xiao-Quan Wang Jia-Wei Xu Xiao-Yu Wu School of Mathematics Jiangsu Center for Applied MathematicsChina University of Mining and TechnologyXuzhou 221116JiangsuChina School of Mathematics and Physics Center for Applied Mathematics of GuangxiGuangxi Minzu UniversityNanning 530006GuangxiChina Department of Civil and Environmental Engineering The Hong Kong Polytechnic UniversityHong KongChina School of Mathematics and Computational Science Xiangtan UniversityXiangtan 411105HunanChina

This work explores a family of two-block nonconvex optimization problems subject to linear *** first introduce a simple but universal Bregman-style improved alternating direction method of multipliers(ADMM)based on the iteration framework of ADMM and the Bregman ***,we utilize the smooth performance of one of the components to develop a linearized version of *** to the traditional ADMM,both proposed methods integrate a convex combination strategy into the multiplier update *** each proposed method,we demonstrate the convergence of the entire iteration sequence to a unique critical point of the augmented Lagrangian function utilizing the powerful Kurdyka–Łojasiewicz property,and we also derive convergence rates for both the sequence of merit function values and the iteration ***,some numerical results show that the proposed methods are effective and encouraging for the Lasso model.

关键词： Nonconvex optimization Alternating direction method of multipliers Kurdyka-Lojasiewicz property Convergence rate

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Magnetic phase transition and continuous spin switching in a high-entropy orthoferrite single crystal

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Frontiers of physics 2024年第2期19卷 157-167页

作者： Wanting Yang Shuang Zhu Xiong Luo Xiaoxuan Ma Chenfei Shi Huan Song Zhiqiang Sun Yefei Guo Yuriy Dedkov baojuan Kang jin-Ke bao Shixun Cao Department of Physics Shanghai UniversityShanghai 200444China Materials Genome Institute and International Center for Quantum and Molecular Structures Shanghai UniversityShanghai 200444China School of Physics Southeast UniversityNanjing 211189China Shanghai Key Laboratory of High Temperature Superconductors Shanghai UniversityShanghai 200444China

Rare-earth orthoferrite REFeO_(3)(where RE is a rare-earth ion)is gaining *** created a high-entropy orthoferrite(Tm_(0.2)Nd_(0.2)Dy_(0.2)Y_(0.2)Yb_(0.2))FeO_(3)(HEOR)by doping five RE ions in equimolar ratios and grew the single crystal by optical floating zone *** strongly tends to form a single-phase structure stabilized by high configurational *** the low-temperature region(11.6‒14.4 K),the spin reorientation transition(SRT)ofΓ_(2)(F_(x),C_(y),G_(z))‒Γ_(24)‒Γ_(4)(G_(x),A_(y),F_(z))*** weak ferromagnetic(FM)moment,which comes from the Fe sublattices distortion,rotates from the a-to *** two-step dynamic processes(Γ_(2)‒Γ_(24)‒Γ_(4))are identified by AC susceptibility *** in HEOR can be tuned in the range of 50‒60000 Oe,which is an order of magnitude larger than that of orthoferrites in the peer system,making it a candidate for high-field spin *** spin-switching(SSW)and continuous spin-switching(CSSW)effects occur under low magnetic fields due to the strong interactions between RE‒Fe *** CSSW effect is tunable between 20‒50 Oe,and hence,HEOR potentially can be applied to spin modulation ***,because of the strong anisotropy of magnetic entropy change()and refrigeration capacity(RC)based on its high configurational entropy,HEOR is expected to provide a novel approach for refrigeration by altering the orientations of the crystallographic axes(anisotropic configurational entropy).

关键词： high-entropy oxide rare-earth orthoferrite spin reorientation transition spin switching magnetocaloric effect

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论马克思主义阶级性与人民性相统一——基于“劳动阶级解放的条件”的分析

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马克思主义理论学科研究 2024年第7期10卷 58-66页

作者：鲍金上海交通大学马克思主义学院上海200240

马克思主义的阶级性与人民性并非简单的并列关系,而是表现为马克思主义阶级性的深化与拓展体现出人民性,人民性作为条件蕴含在阶级解放的要求中,这是两者统一性关系的生成机制。无产阶级具有独属于自己的阶级特征、革命表现和组织形态,... 详细信息

马克思主义的阶级性与人民性并非简单的并列关系,而是表现为马克思主义阶级性的深化与拓展体现出人民性,人民性作为条件蕴含在阶级解放的要求中,这是两者统一性关系的生成机制。无产阶级具有独属于自己的阶级特征、革命表现和组织形态,这些方面作为无产阶级的利益基础,使马克思主义体现出阶级性的一面。与此同时,马克思主义所揭示的无产阶级解放内在地蕴含着“消灭一切阶级”的人类解放指向,由此体现出马克思主义追求人类解放的真实的人民性。马克思通过对政治解放、经济解放、社会解放和劳动解放等递进上升进程的阐述,彻底而完整地揭示出人类解放的现实路径,这就在人类观念史上第一次使意识形态的阶级基础和人民形态获得了具体的、历史的统一。

关键词：马克思主义阶级性人民性解放

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Myricetin induces M2 macrophage polarization to alleviate renal tubulointerstitial fibrosis in diabetic nephropathy via PI3K/Akt pathway

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World Journal of Diabetes 2024年第1期15卷 105-125页

作者： Wei-Long Xu Pei-Pei Zhou Xu Yu Ting Tian jin-jing bao Chang-Rong Ni Min Zha Xiao Wu Jiang-Yi Yu Department of Endocrinology Jiangsu Province Hospital of Chinese MedicineThe Affiliated Hospital of Nanjing University of Chinese MedicineNanjing 210000Jiangsu ProvinceChina Department of Pharmacy Jiangsu Province Hospital of Chinese MedicineThe Affiliated Hospital of Nanjing University of Chinese MedicineNanjing 210000Jiangsu ProvinceChina Department of Pneumology Jiangsu Province Hospital of Chinese MedicineThe Affiliated Hospital of Nanjing University of Chinese MedicineNanjing 210000Jiangsu ProvinceChina

BACKGROUND Development of end-stage renal disease is predominantly attributed to diabetic nephropathy(DN).Previous studies have indicated that myricetin possesses the potential to mitigate the pathological alterations observed in renal ***-theless,the precise molecular mechanism through which myricetin influences the progression of DN remains *** To investigate the effects of myricetin on DN and explore its potential therapeutic *** Db/db mice were administered myricetin intragastrically on a daily basis at doses of 50 mg/kg or 100 mg/kg for a duration of 12 ***,blood and urine indexes were assessed,along with examination of renal tissue *** morphology and fibrosis were evaluated using various staining techniques including hematoxylin and eosin,periodic acid–Schiff,Masson’s trichrome,and ***,high-glucose culturing was conducted on the RAW 264.7 cell line,treated with 25 mM myricetin or co-administered with the PI3K/Akt inhibitor LY294002 for a period of 24 *** both in vivo and in vitro settings,quantification of inflammation factor levels was conducted using western blotting,real-time qPCR and *** In db/db mice,administration of myricetin led to a mitigating effect on DN-induced renal dysfunction and ***,we observed a significant reduction in expressions of the kidney injury markers kidney injury molecule-1 and neutrophil gelatinase associated lipocalin,along with a decrease in expressions of inflammatory cytokine-related ***,myricetin treatment effectively inhibited the up-regulation of tumor necrosis factor-alpha,interleukin-6,and interluekin-1βinduced by high glucose in RAW 264.7 ***,myricetin modulated the M1-type polarization of the RAW 264.7 *** docking and bioinformatic analyses revealed Akt as the target of *** protective effect of myricetin was nullified upon blocking the polarization of RAW 264.7 via inh

关键词： Myricetin Diabetic nephropathy PI3K/Akt pathway Renal tubulointerstitial fibrosis Macrophage Polarization

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马克思叙述方法及其意蕴探析

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思想教育研究 2024年第2期 61-67页

作者：鲍金黄婧上海交通大学马克思主义学院上海200240

与马克思的研究方法受到较多重视相对照的是,作为马克思方法论重要内容的叙述方法很少受到学界关注,由此产生出深化研究马克思叙述方法的必要。叙述方法是作者将研究过程的思维成果表达出来,从而使读者理解和掌握的方法,它具有后发性、... 详细信息

与马克思的研究方法受到较多重视相对照的是,作为马克思方法论重要内容的叙述方法很少受到学界关注,由此产生出深化研究马克思叙述方法的必要。叙述方法是作者将研究过程的思维成果表达出来,从而使读者理解和掌握的方法,它具有后发性、呈现性、外在性和现成性的特征。叙述方法和研究方法既存在形式上的差异,又是紧密联系的统一体。叙述方法以读者的理解为原则,这使得叙述方法成为影响读者理解文本的重要变量。以《资本论》第1卷为例,马克思针对货币起源问题运用了逻辑学考察的叙述方法,从而把握住货币起源的本质关系。探析马克思叙述方法及其意蕴,对于深化马克思叙述方法研究,展现其对理论问题和现实问题的指导价值,具有重要意义。

关键词：叙述方法研究方法《资本论》

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论意识形态的身体化维度——以布迪厄理论为基础的考察

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福建论坛（人文社会科学版） 2024年第5期5卷 54-63页

作者：鲍金吴婷上海交通大学马克思主义学院

意识形态最微妙的地方不在于意识形态的明确号令和显性规定,而在于人们与意识形态的本体性契合和身体性涵化,由此就需要我们去深入把握意识形态的身体化维度。根据布迪厄的理论,意识形态的身体化有三个维度,分别为身体的模糊逻辑及其效... 详细信息

意识形态最微妙的地方不在于意识形态的明确号令和显性规定,而在于人们与意识形态的本体性契合和身体性涵化,由此就需要我们去深入把握意识形态的身体化维度。根据布迪厄的理论,意识形态的身体化有三个维度,分别为身体的模糊逻辑及其效果、实践智慧的形态及其效应、利益格局的生成与维护。身体成为意识形态的隐性资本。推进意识形态身体化维度的研究,对于深化马克思主义意识形态理论,具有重要的价值。

关键词：意识形态身体化布迪厄模糊逻辑实践智慧

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Exploration of pathogenic microorganism within the small intestine of necrotizing enterocolitis

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World Journal of Pediatrics 2024年第2期20卷 165-172页

作者： Yan Wang Kun Jiang Qiao Xia Xia Kang Shan Wang Ji-Hong Yu Wen-Feng Ni Xiao-Qin Qi Ying-Na Zhang jin-bao Han Gang Liu Lei Hou Zhi-Chun Feng Liu-Ming Huang Clinical Biobank Center Medical Innovation Research Division of ChinesePLA General HospitalBeijingChina Institute of Basic Medical Sciences Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina Senior Department of Pediatrics The Seventh Medical Center of PLA General HospitalBeijing 100700China Department of Neurology The First Medical CenterChinese PLA General HospitalBeijing 100853China Department of Emergency Center National Center for Children's HealthBeijing Children's HospitalCapital Medical UniversityBeijing 100045China

Background Necrotizing enterocolitis(NEC)is the most common severe gastrointestinal emergency in *** designed this study to identify the pathogenic microorganisms of NEC in the microbiota of the small intestine of *** Using the 16S ribosomal DNA(rDNA)sequencing method,we compared and analyzed the structure and diversity of microbiotas in the intestinal feces of different groups of neonates:patients undergoing jejunostomy to treat NEC(NP group),neonates undergoing jejunostomy to treat other conditions(NN group),and neonates with NEC undergoing conservative treatment(NC group).We took intestinal feces and saliva samples from patients at different time *** The beta diversities of the NP,NN,and NC groups were all *** comparing the beta diversities between different time points in the NP group,we found similar beta diversities at time points El to E3 but significant differences between the E2-E3 and E4 time points:the abundances of Klebsiella and Enterococcus(Proteobacteria)were higher at the E1-E3 time points;the abundance of Escherichia-Shigella(Proteobacteria)increased at the E2 time point,and the abundance of Klebsiella decreased significantly,whereas that of Streptococcus increased significantly at the E4 time *** Our results suggest that the pathological changes of intestinal necrosis in the small intestine of infants with NEC are not directly caused by excessive proliferation of pathogenic bacteria in the small *** sources of microbiota in the small intestine of neonates,especially in premature infants,may be affected by multiple factors.

关键词： Microbiota Necrotizing enterocolitis-Small intestine 16S rDNA

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方法论视域中的“抽象上升到具体”新阐释

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东南学术 2024年第3期 54-62页

作者：鲍金高鑫雅上海交通大学马克思主义学院

如果说马克思在《资本论》中明确说明自己所使用的方法是“辩证法”,那么他在《1857—1858年经济学手稿》中所指出的作为政治经济学方法的“抽象上升到具体”,就是辩证法的具体体现。在《资本论》第一卷中,马克思运用“抽象上升到具体... 详细信息

如果说马克思在《资本论》中明确说明自己所使用的方法是“辩证法”,那么他在《1857—1858年经济学手稿》中所指出的作为政治经济学方法的“抽象上升到具体”,就是辩证法的具体体现。在《资本论》第一卷中,马克思运用“抽象上升到具体”的方法实现了对资本主义生产方式之内在矛盾的科学考察,从而使得这一方法成为“科学上正确的方法”。而面对“抽象上升到具体”究竟属于研究方法还是属于叙述方法的问题,则应当在研究方法和叙述方法的辩证统一的意义上予以理解,由此才能揭示“抽象上升到具体”的完整的方法论性质。

关键词：马克思《资本论》辩证法抽象上升到具体

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