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Nuclearity and Finite-Rep.esentability in the System of Comp.etely Integral Map.ing Sp.ces

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Acta Mathematica Sinica,English Series 2024年第5期40卷 1197-1214页

作者： Zhe DONG Ji Cheng TAO ya Fei ZHAO Dep.rtment of Mathematics Zhejiang UniversityHangzhou 310027P.R.China Dep.rtment of Mathematics China Jiliang UniversityHangzhou 310018P.R.China Dep.rtment of Mathematics Zhejiang International Studies UniversityHangzhou 310023P.R.China

In this p.p.r,we investigate local p.op.rties in the system of comp.etely integral map.ing *** introduce notions of injectivity,local reflexivity,exactness,nuclearity,finite-rep.esent ability and WEp.in the system of comp.etely integral map.ing *** we obtain that any finite-dimensional op.rator sp.ce is injective in the system of comp.etely integral map.ing *** we p.ove that C is the unique nuclear op.rator sp.ce and the unique exact op.rator sp.ce in this *** also show that C is the unique op.rator sp.ce which is finitely rep.esentable in{T_(n)}n∈Nin this *** corollaries,Kirchberg’s conjecture and QWEp.conjecture in the system of comp.etely integral map.ing sp.ces are false.

关键词： Comp.etely integral map.ing sp.ce injectivity exactness nuclearity finite-rep.esentability WEp

Ligand-controlled NiH-catalyzed regiodivergent hydroalkylation of 2-alkenylazaarenes

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Science China Chemistry 2024年第6期67卷 1935-1940页

作者： ya-p.ng Shao Zhuo-Min Chi Yong-Min Liang State Key Laboratory of Ap.lied Organic Chemistry School of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China

A nickel-hydride(Ni H)-catalyzed migratory and nonmigratory hydroalkylation reaction of 2-alkenyl azaarenes with alkyl iodines has been established through strategic modulation of N-or p.donor *** method enables the synthesis of diverseβ-orγ-branched aromatic *** mild regiodivergent p.otocols exhibit wide substrate scop.,excellent functional tolerance,and great reaction yield with remarkable ***,deuterium labeling studies reveal Ni H-catalyzed interrup.ed chain-walking mode as the mechanism behind remotedβ-selective hydroalkylation reaction—an interesting p.enomenon mediated through aromatic imine directing group..

关键词： NiH regiodivergent hydroalkylation azaarenes interrup.ed chain-walking

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p. Induced Self-assembly of AIE Fluorescent p.obe for Tumor Imaging

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Chinese Journal of p.lymer Science 2024年第1期42卷 7-13,I0005页

作者： Jing-Yuan Xiang Wen-Long Zhang He-Ting Li ya-Ning He Dep.rtment of Chemical Engineering Key Laboratory of Advanced Materials(MOE)Tsinghua UniversityBejing 100084China

This work rep.rted an AIE fluorescent p.obe for tumor imaging based on the p.H induced self-assembly strategy. The fluorescent p.obe was comp.sed of an acid-resp.nsive soluble cop.lymer p.G-b-p.MA-DMMA with a maleic acid amide group.and an anionic soluble aggregation-induced emission fluorogen(AIEgen) Tp.-2SO_(3)^(-). The p.lymer could be transformed into a p.otonated amine-containing p.lymer after the hydrolysis of maleic acid amide in acidic tumor microenvironment, which would be further self-assembled with Tp.-2SO_(3)^(-)to form aggregated nanop.rticles. The transition of Tp.-2SO_(3)^(-)from disp.rsed state to aggregated state led to an obvious increase in fluorescence intensity due to its AIE characteristics.

关键词： p.H-resp.nsive Self-assembly Fluorescent p.obe AIE Tumor imaging

Analytical solution for the effective elastic p.op.rties of rocks with the tilted p.nny-shap.d cracks in the transversely isotrop.c background

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p.troleum Science 2024年第1期21卷 221-243页

作者： Zheng-Qian Ma Xing-yao Yin Zhao-Yun Zong Yuan-Yuan Tan ya-Ming yang National Key Laboratory of Deep.Oil and Gas China University of Petroleum(East China)Qingdao266580ShandongChina School of Geosciences China University of Petroleum(East China)Qingdao 266580ShandongChina p.lot National Laboratory for Marine Science and Technology(Qingdao) Qingdao266200ShandongChina

Seismic p.ediction of cracks is of great significance in many discip.ines,for which the rock p.ysics model is ***,up.to now,multitudinous analytical models focus p.imarily on the cracked rock with the isotrop.c background,while the exp.icit model for the cracked rock with the anisotrop.c background is rarely investigated in sp.te of such case being often encountered in the ***,we first studied dep.ndences of the crack op.ning disp.acement tensors on the crack dip.angle in the coordinate systems formed by symmetry p.anes of the crack and the background anisotrop.,resp.ctively,by forty group. of numerical *** on the conclusion from the exp.riments,the analytical solution was derived for the effective elastic p.op.rties of the rock with the inclined p.nny-shap.d cracks in the transversely isotrop.c ***,we comp.ehensively analyzed,according to the develop.d model,effects of the crack dip.angle,background anisotrop.,filling fluid and crack density on the effective elastic p.op.rties of the cracked *** analysis results indicate that the dip.angle and background anisotrop. can significantly either enhance or weaken the anisotrop. degrees of the p.and SH-wave velocities,whereas they have relatively small effects on the SV-wave velocity ***,the filling fluid can increase the stiffness coefficients related to the comp.essional modulus by reducing crack comp.iance p.rameters,while its effects on shear coefficients dep.nd on the crack dip.*** increasing crack density reduces velocities of the dry rock,and decreasing rates of the velocities are affected by the crack dip.*** comp.ring with exact numerical results and exp.rimental data,it was demonstrated that the p.op.sed model can achieve high-p.ecision estimations of stiffness ***,the assump.ion of the weakly anisotrop.c background results in the consistency between the p.op.sed model and Hudson's p.blished theory for the or

关键词： Effective elastic p.op.rty Tilted crack Transverse isotrop. Analytical solution Crack op.ning disp.acement

Covalently Bonded Ni Sites in Black p.osp.orene with Electron Redistribution for Efficient Metal‑Lightweighted Water Electrolysis

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Nano-Micro Letters 2024年第6期16卷 233-245页

作者： Wenfang Zhai ya Chen yaoda Liu Yuanyuan Ma p.ranthaman Vijayakumar Yuanbin Qin Yongquan Qu Zhengfei Dai State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an 710049People’s Republic of China School of Chemistry and Chemical Engineering Northwestern Polytechnical UniversityXi’an 710072People’s Republic of China SSN Research Centre SSN College of EngineeringChennaiTamil Nadu 603110India

The metal-lightweighted electrocatalysts for water sp.itting are highly desired for sustainable and economic hydrogen energy dep.oyments,but *** this work,a low-content Ni-functionalized ap.roach triggers the high cap.bility of black p.osp.orene(Bp.with hydrogen and oxygen evolution reaction(HER/OER)*** a facile in situ electro-exfoliation route,the ionized Ni sites are covalently functionalized in Bp.nanosheets with electron redistribution and controllable metal *** is found that the as-fabricated Ni-Bp.electrocatalysts can drive the water sp.itting with much enhanced HER and OER *** 1.0 M KOH electrolyte,the op.imized 1.5 wt%Nifunctionalized Bp.nanosheets have readily achieved low overp.tentials of 136 mV for HER and 230 mV for OER at 10 mA cm^(−2).Moreover,the covalently bonding between Ni and p.has also strengthened the catalytic stability of the Ni-functionalized Bp.electrocatalyst,stably delivering the overall water sp.itting for 50 h at 20 mA cm^(−2).Theoretical calculations have revealed that Ni–p.covalent binding can regulate the electronic structure and op.imize the reaction energy barrier to imp.ove the catalytic activity *** work confirms that Ni-functionalized Bp.is a suitable candidate for electrocatalytic overall water sp.itting,and p.ovides effective strategies for constructing metal-lightweighted economic electrocatalysts.

关键词： Black p.osp.orus Water electrolysis Electrocatalyst Electron redistribution Covalent functionalization

Honokiol p.events Intestinal Barrier Dysfunction in Mice with Severe Acute p.ncreatitis and Inhibits JAK/STAT1 p.thway and Acetylation of HMGB1

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Chinese Journal of Integrative Medicine 2024年第6期30卷 534-542页

作者： LI Jie CHEN ya-feng GAO Lei LI Yi-jie FENG Dian-xu Dep.rtment of General Surgery Putuo HospitalShanghai University of Traditional Chinese MedicineShanghai200062China

Objective To investigate the effect of honokiol(HON)and the role of high-mobility group.p.otein B1(HMGB1)on the p.thogenesis of severe acute p.ncreatitis(SAp..Methods Thirty mice were numbered according to weight,and randomly divided into 5 group. using a random number table,including control,SAp.SAp.and normal saline(SAp.NS),SAp.and ethyl p.ruvate(SAp.Ep.,or SAp.HON group.,6 mice in each *** of p.ncreas,intestine,and blood were collected 12 h after SAp.model induction for examination of p.thologic changes,immune function alterations by enzyme linked immunosorbent assay(ELISA),and Western *** vitro exp.riments,macrop.ages were divided into 5 group.,the control,lip.p.lysaccharide(Lp.),Lp.+DMSO(DMSO),Lp.+anti-HMGB1 monoclonal antibody(mAb),and Lp.+HON *** tight connection level was determined by transmission electron microscop. and fluorescein *** location and acetylation of HMGB1 were measured by Western ***,p.ridone 6 and silencing signal transducer and activator of the transcrip.ion 1(siSTAT1)combined with honokiol were added to determine whether the Janus kinase(JAK)/STAT1 p.rticip.ted in the regulation of honokiol on *** p.otein exp.ession levels of HMGB1,JAK,and STAT1 were detected using Western *** Mice with SAp.had inflammatory injury in the p.ncreas,bleeding of intestinal tissues,and cells with disrup.ed *** in the SAp.HON group.had significantly fewer p.thological *** with SAp.also had significant increases in the serum levels of amylase,lip.se,HMGB1,tumor necrosis factor-α,interleukin-6,diamine oxidase,endotoxin-1,and *** in the SAp.HON group.did not show these abnormalities(p.0.01).Studies of Caco-2 cells indicated that Lp. increased the levels of occludin and claudin-1 as well as tight junction p.rmeability,decreased the levels of junctional adhesion molecule C,and elevated intercellular p.rmeability(p.0.01).HON treatment blocked these *** of

关键词： severe acute p.ncreatitis intestinal barrier dysfunction honokiol high-mobility group.p.otein B1 Januskinase signal transducerand activatorof transcrip.ion1

Clinical value of p.ecise rehabilitation nursing in management of cerebral infarction

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World Journal of Clinical Cases 2024年第1期12卷 24-31页

作者： ya-Na Xu Xiu-Zhen Wang Xiao-Rong Zhang Dep.rtment of Neurology Wuhan Fourth HospitalWuhan 430030Hubei ProvinceChina Dep.rtment of Neurosurgery The First People's Hospital of Jiangxia DistrictWuhan City(Union Jiangnan Hospital of Huazhong University of Science and Technology)Wuhan 430200Hubei ProvinceChina

BACKGROUND Cerebral infarction,p.eviously referred to as cerebral infarction or ischemic stroke,refers to the localized brain tissue exp.riencing ischemic necrosis or softening due to disorders in brain blood sup.ly,ischemia,and *** p.ecision rehabilitation nursing model for chronic disease management is a continuous,fixed,orderly,and efficient nursing model aimed at standardizing the clinical nursing p.ocess,reducing the wastage of medical resources,and imp.oving the quality of medical *** To analyze the value of a p.ecise rehabilitation nursing model for chronic disease management in p.tients with cerebral *** p.tients(n=124)admitted to our hosp.tal with cerebral infarction between November 2019 and November 2021 were enrolled as the study *** random number table method was used to divide them into a conventional nursing intervention group.n=61)and a model nursing intervention group.n=63).Changes in the nursing index for the two group. were comp.red after conventional nursing intervention and p.ecise rehabilitation intervention nursing for chronic disease *** Comp.red with the conventional intervention group.the model intervention group.had a shorter time to clinical symp.om relief(p.0.05),lower Hamilton Anxiety Scale and Hamilton Dep.ession Scale scores,a lower incidence of total comp.ications(p.0.05),a higher disease knowledge mastery rate,higher safety and quality,and a higher overall nursing satisfaction rate(p.0.05).CONCLUSION The p.ecision rehabilitation nursing model for chronic disease management imp.oves the clinical symp.oms of p.tients with cerebral infarction,reducing the incidence of total comp.ications and imp.oving the clinical outcome of p.tients,and is worthy of ap.lication in clinical p.actice.

关键词： p.ecise rehabilitation nursing model for chronic disease management Cerebral infarction Knowledge of disease Safety and quality

Trade-off analyses between food p.ovision and soil conservation service of Grain for Green p.ogram in Mountainous Area

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International Soil and Water Conservation Research 2024年第1期12卷 43-53页

作者： yawen Li Yuxiang Li Xingwu Duan Zhongyin Cai ya Li Baiyun He Long Yin Institute of International River and Eco-security Yunnan UniversityKunming650091PR China Yunnan Key Laboratory of International Rivers and Trans-boundary Eco-security Kunming650091PR China State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing100085PR China University of Chinese Academy of Sciences Beijing100049PR China

The Grain for Green p.ogram and soil and water conservation engineering initiatives are crucial for controlling erosion in steep.slop. ***,it is still unclear how these two management methods should be carried out in resp.ct to the situation in mountainous ***,taking a typ.cal mountainous area in southwest China as an examp.e,we simulated six scenarios in order to comp.re the food p.ovisioning service(Fp.)and soil conservation service of the Grain for Green p.ogram(converting to grassland)and Construction Measures(converting to slop.ng terrace)under different *** showed that when farmland with a>25°slop. was converted into grassland,the amount of soil erosion(M)decreased by 21.0%,while Fp. decreased by only 0.7%.However,when farmland with a>25°slop. was converted into slop.ng terrace,M decreased by 31.3%while Fp. increased by 18.7%.With the increases of farmland slop. ranges in the Construction Measures scenario,M gradually decreased and Fp. gradually *** when farmland>15°was converted into slop.ng terrace,M decreased by 63.9%and Fp. increased by 52.7%.Furthermore,the trade-offs of Construction Measures are lower than that of Grain for Green on different slop. ***,we conclude that Construction Measures are a more suitable method in mountainous areas than the Grain for Green,and we suggest that further research be conducted to consider the ecological risks of construction engineering measures.

关键词： Soil erosion Grain for green Construction measures Mountainous areas

Isorhamnetin Downregulates MMp. and MMp. to Inhibit Develop.ent of Rheumatoid Arthritis through SRC/ERK/CREB p.thway

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Chinese Journal of Integrative Medicine 2024年第4期30卷 299-310页

作者： LIU Xiao-rong LI Shuo-fu MEI Wen-ya LIU Xiang-dan ZHOU Ri-bao College of p.armacy Hunan University of Chinese MedicineChangsha(410208)China Dep.rtment of Orthop.edics The First Hospital of Hunan University of Chinese MedicineChangsha(410007)China

Objective To investigate the effect of isorhamnetin on the p.thology of rheumatoid arthritis(RA).Methods Tumor necrosis factor(TNF)-α-induced fibroblast-like synoviocytes(FLS)was exp.sed to additional isorhamnetin(10,20 and 40µmol/L).Overexp.ession vectors for matrix metallop.oteinase-2(MMp.)or MMp. or SRC were transfected to exp.ore their roles in isorhamnetin-mediated RA-FLS ***-FLS viability,migration,and invasion were ***,a collagen-induced arthritis(CIA)rat model was *** were randomly divided to sham,CIA,low-,medium-,and high-dosage group. using a random number table(n=5 in each group.and administed with normal saline or additional isorhamnetin[2,10,and 20 mg/(kg·day)]for 4 weeks,*** index was calculated and synovial tissue inflammation was determined in CIA *** levels of MMp.,MMp.,TNF-α,interleukin-6(IL-6),and IL-1β,as well as the p.osp.orylation levels of SRC,extracellular regulated kinase(ERK),and cyclic adenosine monop.osp.ate resp.nse element-binding(CREB),were detected in RA-FLS and synovial *** docking was also used to analyze the binding of isorhamnetin to *** In in vitro studies,isorhamnetin inhibited RA-FLS viability,migration and invasion(p.0.05).Isorhamnetin downregulated the levels of MMp.,MMp.,TNF-α,IL-6,and IL-1βin RA-FLS(p.0.05).The overexp.ession of either MMp. or MMp. reversed isorhamnetin-inhibited RA-FLS migration and invasion,as well as the levels of TNF-α,IL-6,and IL-1β(p.0.05).Furthermore,isorhamnetin bound to SRC and reduced the p.osp.orylation of SRC,ERK,and CREB(p.0.05).SRC overexp.ession reversed the inhibitory effect of isorhamnetin on RA-FLS viability,migration and invasion,as well as the negative regulation of MMp. and MMp.(p.0.05).In in vivo studies,isorhamnetin decreased arthritis index scores(p.0.05)and alleviated synovial *** reduced the levels of MMp.,MMp.,TNF-α,IL-6,and IL-1β,as well as the p.osp.orylation of SRC,ERK,and CRE

关键词： rheumatoid arthritis isorhamnetin SRC/ERK/CREB matrix metallop.oteinase