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World Journal of Gastroenterology 2025年第4期31卷 160-163页

作者： yan-Qing Ma Xi-Ren Xu Jie Li yi Lin Zheng Guan Department of Radiology Zhejiang Provincial People’s Hospital(Affiliated People’s HospitalHangzhou Medical College)Hangzhou 310014Zhejiang ProvinceChina

In this article,we comment on the article by Cheng et al published in *** liver failure(PhLF)remains a leading cause of hepatectomyrelated mortality and can be evaluated according to liver reserve *** stiffness(LS)measured by ultrasonic elastography and spleen area demonstrate a strong correlation with hepatic proliferation,fibrosis,and portal vein congestion,thus indirectly reflecting liver reserve *** article highlights a meticulous study aimed at investigating the potential of two-dimensional shear wave elastography in assessing LS,as well as its integration with spleen area,surgical factors,and laboratory indicators,for predicting the risk of PhLF in hepatocellular carcinoma *** this article,we discussed the non-invasive elastography modality by ultrasound and magnetic resonance imaging to assess *** on literature data,we subsequently suggested that several risk factors may contribute to PhLF,including excessive intrahepatic neutrophil accumulation,the formation of neutrophil extracellular traps,end-stage liver disease scores,and albumin-bilirubin ***,a more comprehensive study incor-porating detailed information requires further investigation.

关键词： Posthepatectomy liver failure Liver stiffness hepatocellular carcinoma Elastography Ultrasound Magnetic resonance imaging

Discovery of a new family member of arsenic–vanadium polyoxometalates with high catalytic performance for one-pot coupling of CO2, epoxides and amines

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Tungsten 2025年第1期7卷 80-87页

作者： Fang-Qian Wang yin Zhang Wei-Wei Wang Mei-Qian Fu hong-Bing Mo Wei-Dong yu Chao Liu Jun yan College of Chemistry and Chemical Engineering Central South University Junior Education Department Changsha Normal University School of Science Hunan University of Technology and Business

Arsenic-vanadium polyoxometalates（POMs） represent a family of tremendous potential catalysts owing to their peculiar physical and chemical *** in CO2conversion,using POMs to catalyze the conversion of CO2and epoxide into chemical intermediates is the research ***,A new family number of arsenic-vanadium POMs,[N（Ch3）4]4[As8V12O38（h2O）]·2h2O({As8V12O38}),was reported and characterized by single-crystal X-ray diffraction,fourier transform infrared spectroscopy,X-ray photoelectron spectroscopy,*** from other allotropicity,{As8V12O38}shows a different structure pattern with an I-43d *** obtained {As8V12O38} was employed as a catalyst for the *** initial catalytic reaction confirmed that {As8V12O38} can catalyze the formation of epoxy carbonate by using 1.01 kPa CO2and epoxide at 70℃.Furtherly,when added amine in the catalytic system,oxazolidinone could be obtained by high yields,which provides an efficient way to convert CO2into profitable ***,a possible catalytic reaction mechanism was proposed by using different characterization analyses.{As8V12O38} first catalyzes the epoxide and CO2to form an epoxy carbonate and then catalyzes epoxy carbonate and benzylamine into oxazolidinone.

关键词： Arsenic CO2 conversion Oxazolidinone Polyoxometalates Vanadium

小世界、结构洞与城市创新的网络机制:来自长三角城市群的证据

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管理工程学报 2025年第2期39卷 14-26页

作者：袁燕吴妍杨大鹏浙江科技大学经济与管理学院浙江杭州310023 浙江金融职业学院电子商务与新消费研究院浙江杭州310018 中共浙江省委党校工商管理教研部浙江杭州311121

近年来,创新网络作为区域和城市创新驱动力的重要性得到了广泛关注。一些研究将网络关系视为知识在城市内和城市间传播的渠道,并通过网络分析视角洞察城市创新的结构和动态。然而,城市创新的网络机制,特别是数字经济发展背景下的数字赋... 详细信息

近年来,创新网络作为区域和城市创新驱动力的重要性得到了广泛关注。一些研究将网络关系视为知识在城市内和城市间传播的渠道,并通过网络分析视角洞察城市创新的结构和动态。然而,城市创新的网络机制,特别是数字经济发展背景下的数字赋能城市创新能力提升机制还有待进一步研究。本文利用长三角城市群26个城市2009年—2018年联合申请专利数据构建了城市创新网络,探讨了网络结构属性——小世界和结构洞对城市创新能力的影响。结果表明,小世界与城市创新能力呈“倒U型”关系,数字经济发展水平正向调节了二者之间的“倒U型”关系,结构洞对城市创新能力具有正向影响。本文厘清了创新网络结构对城市创新能力的影响,回应了以往研究关于小世界和结构洞对创新影响的理论争议,为区域创新的理论研究提供了新颖性观点,深化了对城市群创新发展规律的认识,对推进中国城市群协同创新具有重要意义。

关键词：创新网络城市创新能力专利合作数字经济

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Creep Behavior and Microstructure Evolution of Sand–Cast Mg–4y–2.3Nd–1Gd–0.6Zr Alloy Crept at 523–573 K

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Journal of Materials Science & Technology 2017年第1期33卷 79-89页

作者： y.h.Kang h.yan R.S.Chen The Group of Magnesium Alloys and Their Applications Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China University of the Chinese Academy of Sciences Beijing 100049China

high temperature tensile-creep behavior of Mg-4y-2.3Nd-IGd-O.6Zr （wt%, WE43（T6）） alloy at 523- 573 K was investigated. The creep stress exponent is equal to 4.6, suggesting the underlying dislocation creep mechanism. The activation energy is （199 _＋ 23） kJ/mol, which is higher than that for self- diffusion in Mg and is believed to be associated with precipitates coarsening or cross slip. The creep mechanism is further suggested to be dislocation climb at 523 K, while a cross slip at 573 K is possible. The metastable 13＇ and ~]1 phases in the WE43（T6） alloy were relatively thermal stable at 523 K and could be effective to hinder the dislocation climb, which contributed to its excellent creep resistance. however, at 573 K it readily transforms into equilibrium/3e phase and coarsens within two hours, thereby causing a decrease of creep resistance. In addition, precipitate free zones approximately normal to applied stress direction （directional PFZs） developed during the creep deformation, especially at 573 K. Those zones became preferential sites to nucleate, extend and connect microcracks and cavities, which lead to the intergranular creep fracture. Improving the thermal stability of precipitates or introducing thermally stable fine plate-shaped precipitates on the basal planes of Mg matrix could enhance the high temperature creep resistance.

关键词： WE43 alloy Creep PFZs Precipitate Fracture

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Potassium ions and cyano group modified g-C_(3)N_(4) for effective generation of h_(2)O_(2) through two-electron oxygen reduction

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Science China Chemistry 2025年第1期68卷 192-200页

作者： Dongying Wang Shulan Pu yongmin Chen Ke Lei yujie Duan Linjiao Mao Xuhui Zeng Xi Luo yuntao Zhang yuqin Dong Jin Zhong Zhang yan Sun School of Mechanical Engineering Chengdu UniversityChengdu 610106China Department of Chemistry and Biochemistry University of CaliforniaSanta CruzCA 95064USA

Potassium ions(K^(+))doped graphitic carbon nitride(g-C_(3)N_(4))was prepared by a thermal etching method using potassium hydroxide(KOh)as an ion *** transform infrared spectroscopy(FTIR)and X-ray photoelectron spectroscopy(XPS)results showed that the generation of the cyano group was detected while introducing K^(+).Under simulated sunlight irradiation,the sample with a K^(+)doping amount of 10%showed the highest hydrogen peroxide(h_(2)O_(2))generation rate of2,140.2μmol h^(-1)g^(-1).The apparent quantum yield(AQy)at 400 nm and the solar-to-chemical conversion(SCC)are 4.35%and1.23%,respectively.K^(+)acted as a bridge between g-C_(3)N_(4)layers,which enhanced charge transfer ***,the cyano group enhanced the adsorption capacity of protons(h^(+))and promoted the yield of h_(2)O_(2).The catalyst exhibited excellent photocatalytic stability based on four-cycle *** addition,a mechanism study showed that superoxide radicals(·O_(2)^(-))were the most important active species in the reaction *** production of h_(2)O_(2)was achieved through consecutive single-electron *** study deepens the understanding of the oxygen reduction reaction process and opens up a new venue for improving h_(2)O_(2)generation.

关键词： photocatalysis hydrogen peroxide oxygen reduction reaction potassium doping cyano group

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Photoswitchable molecular assembly for controlled chloride transport across the lipid membranes

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Science China Chemistry 2025年

作者： Chuantao Wang Kai ye Zexin yan Shinan Ma Juejiao Fan Chunyan Bao Shanghai Key Laboratory of Functional Materials Chemistry School of Chemistry & Molecular Engineering East China University of Science and Technology State Key Laboratory of Bioreactor Engineering Shanghai Frontiers Science Center of Optogenetic Techniques for Cell MetabolismSchool of Pharmacy East China University of Science and Technology

Inspired by nature, biomimetic photoregulated ion transporters have attracted great interest because of the spatial and temporal control over ion transport, in which photocontrollable anion transport remains a very challenging task. herein, we demonstrate an anionophore AZC for photoregulating anion transport with a high selectivity for chloride over hydroxide across the lipid membranes. Our strategy is based on a well-designed bidentate iodo-triazole anion receptor equipped with an azobenzene moiety, which recognizes Cl-by C–I halogen bonding and C–h hydrogen bonding and switches its states in the lipid membranes from inactive aggregates to active single molecules through azobenzene photoisomerization, thereby achieving controllable Cl-transport. Compared with trans-AZC, cis-AZC exhibits much higher ion transport activity with an EC50（the effective concentration required for 50% activity） value at 28 nM, which is one of the highest reported activities to date for halogen bonding anionophores. Finally, it allows the modulation of Cl-transport upon reversible photoisomerization of AZC using alternative ultraviolet and visible light irradiation. This work provides a new strategy for designing stimuli-responsive anion transporters and paves the way for potential applications in remotely controlled membrane transport and treatment of related diseases.

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Dense carbon nanofiber self-supporting electrode fabricated by orientation/compaction strategy for high volumetric lithium storage capacity

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Progress in Natural Science:Materials International 2025年第01期 229-237页

作者： haihui Liu Chaoqun Chen Qiang Xu yan Song Xiangwu Zhang Chang Ma Tianjin Municipal Key Lab of Advanced Fiber and Energy Storage Technology Tiangong University CAS Key Laboratory of Carbon Materials Institute of Coal Chemistry Chinese Academy of Sciences Fiber and Polymer Science Program Department of Textile Engineering Chemistry and Science Wilson College of Textiles North Carolina State University

Low bulk density greatly restricts the large-scale application of electrospun carbon-based fiber membrane as electrode in energy storage devices. To solve the above challenges, herein an orientation-compaction densification strategy is proposed to enhance the bulk density and volumetric capacity of PAN-based carbon nanofiber membranes as self-supporting electrode used in lithium-ion batteries（LIBs）. Specifically, highly-oriented fibers are achieved by high-speed roller collecting during electrospinning, and compaction densification is conducted by hot-pressing treatment. The effects of collecting speed and hot-pressing pressure on the morphology, conductivity,bulk density, tensile strength, and flexibility of the obtained carbon nanofiber membrane are *** to conventional fiber membranes, of which fibers are disorderly stacked, the oriented fiber membrane is much easier to achieve dense stacking by compaction. The obtained dense carbon nanofiber membrane demonstrates a bulk density of 0.566 g cm-3, and shows a significantly-enhanced volumetric capacity(318.3 mA h cm-3), high-rate performance(86.6 mA h cm-3at 5 A g-1), and satisfactory cycling stability when used as selfsupporting electrode of LIBs.

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Breaking the structural symmetry of active sites in zeolite imidazolate framework for enhanced CO2 photoreduction

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Science China Chemistry 2025年

作者： yupeng han yayu yan Qiaohong Li Xin Wu Fei Wang Jian Zhang State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences University of Chinese Academy of Sciences College of Chemistry Fuzhou University

Adjusting the structure and composition of active sites is a highly effective method for activating linear ***, precise control of interfacial chemistry within molecular-scale environments presents a significant challenge in heterogeneous catalysis. In our study, we present symmetry-broken Mo-O-Co triple-atom active sites within the hybrid zeolite imidazole framework hZIF-CoMo. These sites disrupt the electronic balance and create a weak built-in electric field, thus promoting photocatalytic CO2reduction. The CO yield over hZIF-CoMo is improved to 3.1 mmol g-1h-1, which is over four times higher than the parent cobalt-imidazole framework MAF-6-Co. Both experimental and theoretical studies indicate that electronic modulation through the symmetry-breaking Mo-O-Co moiety acts as an organizing knob to accelerate charge separation and result in more carriers participating in the catalytic reaction. This work provides important insights into optimizing site-related electronic structures for targeted photocatalytic reactions.

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Prevalence,risk factors and clinical features of sensory A-V pattern exotropia

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International Journal of Ophthalmology(English edition) 2025年第2期18卷 323-329页

作者： Bin-Bin Zhu Shi-yu Tang Xiang-Jun Wang Li-Cheng Fu Jian-hua yan State Key Laboratory of Ophthalmology Zhongshan Ophthalmic CenterSun Yat-Sen UniversityGuangzhou 510060Guangdong ProvinceChina Ophthalmology Department of Surgerythe Second People’s Hospital of FoshanFoshan 528000Guangdong ProvinceChina

AIM:To investigate the potential mechanisms of A-V pattern and evaluate the surgical outcomes used in the treatment of sensory ***:The medical records of patients with sensory A-V pattern exotropia who underwent strabismus surgery between May 2014 to June 2019 was retrospectively *** control group included sensory exotropia patients without A-V pattern and concomitant A-V pattern exotropia patients with normal vision who undergone strabismus surgery over this same time *** alignment,best corrected visual acuity,oblique muscle function,and stereopsis records were ***:Among the 843 eligible patients,91(10.79%;39 males and 52 females)had A-pattern(54,6.4%)or V-pattern(37,4.4%).Age at onset of vision impairment was 4±5y and at the time of surgery was 25±*** significant negative correlations were present between impaired visual acuity and the pre-operative exodeviation(r=-0.198,P=0.016)and patterns(r=-0.207,P=0.015).Age at surgery and exodeviation in patients with concomitant A-V pattern exotropia was significantly earlier as compared with that of sensory A-V pattern exotropia and sensory exotropia(both Phere were no significant differences in these clinical variables between sensory exotropia with or without A-V *** and pattern were significantly reduced in patients receiving horizontal rectus surgery with or without oblique muscle surgery(both Phe prevalence of sensory A-V pattern exotropia in our study is 10.79%.Visual acuity represents an important factor contributing to the occurrence and development of A-V *** horizontal rectus surgery can provide a good option for the correction of sensory A-V pattern exotropia.

关键词： sensory exotropia A-V pattern oblique muscle dysfunction horizontal rectus surgery

Shenmai Injection Reduces Cardiomyocyte Apoptosis Induced by Doxorubicin through miR-30a/Bcl-2

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ChINESE JOURNAL OF INTEGRATIVE MEDICINE 2025年第3期31卷 240-250页

作者： Zhang, Xiao-nan Li, yan-yang Lyu, Shi-chao Jia, Qiu-jin Zhang, Jun-ping Liu, Long-tao China Acad Chinese Med Sci Xiyuan Hosp Natl Clin Res Ctr Chinese Med Cardiol Dept Cardiovasc Med Beijing 100091 Peoples R China Tianjin Med Univ Dept Integrated Tradit Chinese & Western Med Canc Inst & Hosp Tianjin 300060 Peoples R China Tianjin Univ Tradit Chinese Med Dept Cardiovasc Med Teaching Hosp 1 Tianjin 300193 Peoples R China Tianjin Key Lab Tradit Res Tradit Chinese Med Pres Dept Cardiovasc Med Tianjin 300193 Peoples R China

Objective: To explore the molecular mechanism of Shenmai Injection (SMI) against doxorubicin (DOX) induced cardiomyocyte apoptosis. Methods: A total of 40 specific pathogen-free (SPF) male Sprague Dawley (SD) male rats were divided into 5 groups based on the random number table, including the control group, the model group, miR-30a agomir group, SMI low-dose (SMI-L) group, and SMI high-dose (SMI-h) group, with 8 rats in each group. Except for the control group, the rats were injected weekly with DOX (2 mg/kg) in the tail vein for 4 weeks to induce myocardial injury, and were given different regimens of continuous intervention for 2 weeks. Cardiac function was detected by echocardiography and myocardial pathological changes were observed by Van Gieson (VG) staining. Myocardial injury serum markers, including creatine kinase (CK), lactate dehydrogenase (LDh), troponin T (cTnT), N-terminal pro-brain natriuretic peptide (NT-proBNP), soluble ST2 (sST2), and growth differentiation factor-15 (GDF-15) were detected by enzyme linked immunosorbent assay (ELISA). Cardiomyocyte apoptosis was observed by terminal deoxynucleotidyl transferase-mediated biotinylated dUTP triphosphate nick end labeling (TUNEL) and transmission electron microscopy, and the expressions of target proteins and mRNA were detected by Western blot and quantitative real time polymerase chain reaction (qRT-RCR), respectively. Results: The treatment with different doses of SMI reduced rat heart mass index and left ventricular mass index (Py improved the left ventricular ejection fraction (Phe levels of serum CK, LDh, cTnT, and NT-proBNP (Phe levels of serum sST2 and GDF-15 (Phe collagen volume fraction, reduced the expressions of rat myocardial type I and type III collagen (Py alleviated myocardial fibrosis. And the study found that SMI promoted the expression levels of miR-30a and Bc

关键词： Shenmai Injection doxorubicin cardiotoxicity miR-30a/Bcl-2 apoptosis