检索结果-南通市图书馆

The effect of typical seawater cations on the adhesion of mussel protein Mefp-1 based on dissipative quartz crystal microbalance

在线全文

学校读者我要写书评

暂无评论

Journal of Oceanology and Limnology 2025年第1期43卷 274-285页

作者： Futao ZHANG Chengjun SUN Linqing xie Fuqian LI Fenghua jiang jingxi LI Marine Bioresource and Environment Research Center First Institute of OceanographyMinistry of Natural ResourcesQingdao 266061China Laboratory of Marine Drugs and Bioproducts Laoshan LaboratoryQingdao 266237China Shandong jinpiao Food Machinery Co. Ltd.Weihai 264300China

Mussels are common anchoring organisms that adhere to the surfaces of various substrates with their *** adhesion of mussel to substrates is contingent upon the presence of mussel foot proteins,of which Mytilus edulis foot protein-1(Mefp-1)has been identified as the most abundant *** has been found that lipids are involved in the mussel adhesion process and can facilitate *** this research,the adhesion behavior of Mefp-1 on various substrate surfaces under the effect of typical seawater cations with or without the presence of lipid were investigated using a quartz crystal microbalance with dissipation(QCM-D).Results indicate that the presence of cations Ca^(2+),Mg^(2+),Na^(+),and K^(+)leads to varying degrees of reduction in the adhesion performance of Mefp-1 on different *** degree of this reduction,however,was much alleviated in the presence of palmitic acid,which is involved in the mussel adhesion ***,the involvement of palmitic acid is advantageous for mussel protein adhesion to the substrate surface in the marine *** study illustrated the significant contribution of palmitic acid to mussel adhesion,which can help to better understand biofouling mechanisms and develop biomimetic adhesive materials.

关键词： mussel adhesion quartz crystal microbalance with dissipation(QCM-D) typical seawater cations palmitic acid Mefp-1

Ligand-mediated reactivity in CO oxidation of yttrium-nickel monoxide carbonyl complexes

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2025年第2期36卷 179-183页

作者： Jumei Zhang Ziheng Zhang Gang Li Hongjin Qiao Hua xie Ling jiang School of Life Science Ludong University State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical PhysicsChinese Academy of Sciences

A series of heteronuclear yttrium-nickel monoxide carbonyl complexes YNiO（CO）_n-（n=1–5） were generated in a pulsed-laser vaporization source and characterized by mass-selected photoelectron velocity-map spectroscopy combined with theoretical *** ligand-mediated reactivity in CO oxidation of yttrium-nickel monoxide carbonyl complexes was experimentally and theoretically *** the consecutive CO adsorption,aμ2-O linear structure was most favorable for YNiO（CO）_n-（n=1,2）,then a structure in which the terminal O was bonded to the Y atom became favored for YNiO（CO）3-,and finally a structure bearing a CO2moiety was most favorable for YNiO（CO）_n-（n=4,5）.Theoretical calculations indicated that the Ni atom acted as an electron acceptor and accumulated electron density at n≤3,and then served as an electron donor along with the Y atom to contribute electron density in the rearrangement that accompanied CO oxidation at n>3.

关键词： CO oxidation Electron donor Heteronuclear cluster Photoelectron velocity-map imaging spectroscopy Quantum chemical calculation

Palaeowind reconstruction from Lower Cretaceous wavedominated depositional records of the Tanan Depression,Northeast Asia

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Oceanology and Limnology 2025年第1期43卷 41-56页

作者： Xinyu XUE Zaixing jiang Chao LIU Li WANG Huanyu xie Lizhou SONG Ming SU School of Marine Science Sun Yat-sen UniversityZhuhai 519083China School of Energy Resources China University of Geosciences(Beijing)Beijing 100083China Sinopec Matrix Corporation Qingdao 266000China Daqing Oilfield Production Technology Institute Daqing 163453China

Palaeowind regime is an important component for reconstructing palaeoclimate and understanding ancient global *** applied the beach-ridge thickness technique(BTT)and the longshore-bar thickness technique(LTT)to reconstruct the Early Cretaceous palaeowind velocities based on depositional records of Tanan Depression in Northeast *** thickness of beach ridges and nearshore bars is the most important parameter for applying the BTT and the LTT *** identified 22 beach ridges and 23 nearshore bars based on drilling cores and wireline-log data in the Tanan *** velocities calculated by using the LTT method ranged from 10.84 to 13.66 m/s,showing a narrower range than those calculated by using the BTT method(7.58–15.93 m/s).We further analyzed the underlying factors causing the difference between the results derived from these two methods based on the sedimentary process of the beach ridge and the nearshore *** reconstructed wind regime was assumed to be the summer monsoon originating from the Mongol-Okhotsk Ocean before it had been completely enclosed,which provides valuable insight into the understanding of the atmospheric circulation in Northeast Asia during the Early Cretaceous.

关键词： palaeowind beach ridge nearshore bar Early Cretaceous East Asia Summer Monsoon

Anomalous open orbits in Hofstadter spectrum of Chern insulator

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2025年第3期68卷 139-144页

作者： Haijiao Ji Peng Zhou Noah F.Q.Yuan Hua jiang Haiwen Liu X.C.xie Center for Advanced Quantum Studies Department of PhysicsBeijing Normal UniversityBeijing100875China Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghai201210China Department of Mathematics UC BerkeleyBerkeley94720USA Institute for Nanoelectronic Devices and Quantum Computing Fudan UniversityShanghai200433China International Center for Quantum Materials School of PhysicsPeking UniversityBeijing100871China Hefei National Laboratory Hefei230088China

The nontrivial band topology of Chern insulator can enrich the content of its Hofstadter butterfly spectra,which is closely related to recent experiments in twisted bilayer graphene and cold atom *** investigate the Hofstadter spectrum for various models of Chern insulators under a rational fluxφ_(0)/q,hereφ_(0)=h/e and q being an *** find the number of splitting subbands is|q-C|with C denoting the Chern number of parent ***,anomalous open-orbital subbands with Chern numbers q-1 and-q-1 emerge unexpectedly,which are beyond the parameter window(-q/2,q/2)of the Diophantine equation studied by Thouless-Kohmoto-Nightingale-den Nijs[***.49,405(1982)].The emergence of anomalous open orbits can be traced by analyzing the evolution of the Hofstadter spectrum,identifying as a new type of topological phase *** novel findings not only pinpoint the peculiar Hofstadter spectrum of Chern insulator,but also provide routes to study exotic characteristics beyond the Landau level physics.

关键词： Hofstadter spectrum topological phase transition open orbit

同方期刊数据库

Effect of rolling schedules on ridging resistance of ultra-thin ferritic stainless steel foil

在线全文

学校读者我要写书评

暂无评论

Journal of Iron and Steel Research International 2025年第1期32卷 198-214页

作者： jing-wei Zhao Qing-zhong xie Li-nan Ma Cun-long Zhou Zheng-yi jiang Xi Liao Xiao-guang Ma College of Mechanical and Vehicle Engineering Taiyuan University of TechnologyTaiyuan030024ShanxiChina Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment Ministry of EducationTaiyuan030024ShanxiChina National Key Laboratory of Metal Forming Technology and Heavy Equipment Ministry of Science and TechnologyTaiyuan030024ShanxiChina School of Mechanical Engineering Taiyuan University of Science and TechnologyTaiyuan 030024ShanxiChina School of Mechanical MaterialsBiomedical and Mechatronic EngineeringUniversity of WollongongWollongongNSW2522Australia Shanxi Taigang Stainless Steel Precision Strip Co. Ltd.Taiyuan 030006ShanxiChina

The effect of rolling schedules on the ridging resistance of ultra-thin ferritic stainless steel(FSS)430 foil was evaluated by studying the microstructure and *** results show that specimens processed with three-pass cold rolling under the reductions of 40%,40%and 31%,respectively,exhibit improved ridging resistance owing to the microstructural refinement and the texture structure optimization.A nearly 40%reduction of ridging height can be achieved using the proposed rolling schedule compared to the other two rolling *** addition,the effect of annealing temperature after cold rolling on the ridging resistance of FSS 430 foil is also found to be crucial,and an optimal annealing temperature of 900℃ is obtained for FSS 430 foil with high ridging ***,the improvement in the ridging resistance of FSS 430 foil can be attributed to the reduction in the fraction of{001}and{114}components by optimization of the rolling and annealing processes.

关键词： Ferritic stainless steel foil Ridging Cold rolling Annealing Microstructure Texture

Design of insulation support system of 120 keV positive ion source accelerator

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Plasma Science and Technology 2025年第1期27卷 128-133页

作者： Wen DENG Yahong xie Yuming GU Yunfei jiang Longbin LIU Fang WANG jianglong WEI Chundong HU University of Science and Technology of China Hefei 230026People’s Republic of China Institute of Plasma Physics Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031People’s Republic of China East China University of Technology Nanchang 330013People’s Republic of China Anhui University Hefei 230601People’s Republic of China

In order to support the physical research on the EAST tokamak,a new positive ion source with designed beam energy of 120 keV was proposed to be *** structure is one of the key components of the ion *** the finite element analysis method,the electrostatic analyses of insulators and grid plates were carried out,the material and structure parameters of insulators were *** maximum electric field around each insulator is about 4 kV/mm,and the maximum electric field between grids is about 14 kV/mm,which can meet the 120 keV withstand voltage *** insulation system for the positive ion source accelerator with 120 keV is designed,and the connection and basic parameters of insulators and support flanges are analyzed and determined.

关键词： positive ion source accelerator insulation support system electrostatic simulation

Integrated analysis and systematic characterization of the regulatory network for human germline development

在线全文

学校读者我要写书评

暂无评论

Journal of Genetics and Genomics 2025年第2期52卷 204-219页

作者： Yashi Gu Jiayao Chen Ziqi Wang Qizhe Shao Zhekai Li Yaxuan Ye Xia Xiao Yitian Xiao Wenyang Liu Sisi xie Lingling Tong jin jiang Xiaoying Xiao Ya Yu Min jin Yanxing Wei Robert S.Young Lei Hou Di Chen Center for Reproductive Medicine of the Second Affiliated Hospital Center for Regeneration and Cell Therapy of Zhejiang University-University of Edinburgh Institute(ZJU-UoE Institute)Zhejiang University School of MedicineZhejiang UniversityHangzhouZhejiang 310003China Edinburgh Medical School:Biomedical Sciences College of Medicine and Veterinary MedicineThe University of EdinburghEdinburghUK Center for Reproductive Medicine of the Second Affiliated Hospital Zhejiang University School of MedicineZhejiang UniversityHangzhouZhejiang 310003China Department of Obstetrics and Gynecology Nanfang HospitalSouthern Medical UniversityGuangzhouGuangdong 510515China Key Laboratory of Functional Proteomics of Guangdong Province School of Basic Medical SciencesSouthern Medical UniversityGuangzhouGuangdong 510515China Research Centre for Women's and Infants'Health Lunenfeld-Tanenbaum Research InstituteSinai Health SystemTorontoM5T3H7Canada Center for Global Health Research Usher InstituteUniversity of EdinburghTeviot Place5-7 Little France RoadEdinburgh BioQuarter-Gate 3EdinburghEH164UXUK Zhejiang University-University of Edinburgh Institute Zhejiang UniversityHainingZhejiang 314400China Section of Biomedical Genetics Department of MedicineBoston University School of MedicineBostonMA 02118United States State Key Laboratory of Biobased Transportation Fuel Technology HainingZhejiang 314400China

Primordial germ cells(PGCs)are the precursors of germline that are specified at the embryonic *** studies reveal that humans employ different mechanisms for PGC specification compared with model organisms such as ***,the specific regulatory machinery remains largely unexplored,mainly due to the inaccessible nature of this complex biological process in ***,we curate and integrate multi-omics data,including 581 RNA-seq,54 ATAC-seq,45 ChIP-seq,and 69 single-cell RNA-seq samples from different stages of human PGC development to recapitulate the precisely controlled and stepwise process,presenting an atlas in the human PGC database(hPGCdb).With these uniformly processed data and integrated analyses,we characterize the potential key transcription factors and regulatory networks governing human germ cell *** validate the important roles of some of the key factors in germ cell development by CRISPRi *** also identify the soma-germline interaction network and discover the involvement of SDC2 and LAMA4 for PGC development,as well as soma-derived NOTCH2 signaling for germ cell *** together,we have built a database for human PGCs(http://43.***.248.15:6882)and demonstrate that hPGCdb enables the identification of the missing pieces of mechanisms governing germline development,including both intrinsic and extrinsic regulatory programs.

关键词： Primordial germ cells Regulatory network Soma-germ cell interaction Database

Perilipin-2 mediates ferroptosis in oligodendrocyte progenitor cells and myelin injury after ischemic stroke

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第7期20卷 2015-2028页

作者： Jian Yang jiang Wu Xueshun xie Pengfei Xia jinxin Lu Jiale Liu Lei Bai Xiang Li Zhengquan Yu Haiying Li Department of Neurosurgery&Brain and Nerve Research Laboratory The First Affiliated Hospital of Soochow UniversitySuzhouJiangsu ProvinceChina Institute of Stroke Research Soochow UniversitySuzhouJiangsu ProvinceChina

Differentiation of oligodendrocyte progenitor cells into mature myelin-forming oligodendrocytes contributes to *** of remyelination due to oligodendrocyte progenitor cell death can result in severe nerve *** is an iron-dependent form of regulated cell death caused by membrane rupture induced by lipid peroxidation,and plays an important role in the pathological process of ischemic ***,there are few studies on oligodendrocyte progenitor cell *** analyzed transcriptome sequencing data from GEO databases and identified a role of ferroptosis in oligodendrocyte progenitor cell death and myelin injury after cerebral *** analysis suggested that perilipin-2(PLIN2)was involved in oligodendrocyte progenitor cell ***2 is a lipid storage protein and a marker of hypoxia-sensitive lipid droplet *** further investigation,we established a mouse model of cerebral ischemia/*** found significant myelin damage after cerebral ischemia,as well as oligodendrocyte progenitor cell death and increased lipid peroxidation levels around the infarct *** ferroptosis inhibitor,ferrostatin-1,rescued oligodendrocyte progenitor cell death and subsequent myelin *** also found increased PLIN2 levels in the peri-infarct area that co-localized with oligodendrocyte progenitor ***2 knockdown rescued demyelination and improved neurological *** findings suggest that targeting PLIN2 to regulate oligodendrocyte progenitor cell ferroptosis may be a potential therapeutic strategy for rescuing myelin damage after cerebral ischemia.

关键词： bioinformatics bulk RNA sequencing ferroptosis ischemic stroke myelin injury oligodendrocyte progenitor cell perilipin-2 single-cell RNA sequencing

Safety and effectiveness of balloon catheter-assiste d ultrasound-guide d percutaneous microwave ablation in difficult-site liver cancer

在线全文

学校读者我要写书评

暂无评论

Hepatobiliary & Pancreatic Diseases International 2025年第1期24卷 84-91页

作者： Qi-Yu Zhao Teng Guo jing-jing Hu Li-Ting xie Wei-Lu Chai Guo Tian Tian-An jiang Department of Ultrasound Medicine the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Department of Hepatobiliary and Pancreatic Surgery the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Department of Ultrasound Medicine the First Affiliated HospitalZhejiang University School of MedicineLiangzhu BranchHangzhou 310003China Department of Ultrasound Medicine Ningbo No.2 HospitalNingbo 315010China

Background:Balloon catheter isolation is a promising auxiliary method for thermal ablation treatment of liver cancer. We aimed to explore the safety and effectiveness of balloon catheter isolation-assisted ultrasound-guided percutaneous microwave ablation (MWA) in treating liver cancer in difficult anatomical ***:Data of 132 patients with 145 difficult-site liver cancer treated with ultrasound-guided percutaneous MWA were retrospectively analyzed. Participants were classified into the isolation (n=40)and non-isolation (n=92) groups based on whether the patients were treated using a balloon catheter prior to ablation. The major complication rates, local tumor residuals (LTR), and tumor follow-up for local tumor progression (LTP) at 6 and 12 months post-ablation were compared between the two ***:The rates of major postoperative complications did not significantly differ between the isolation and non-isolation groups (2.5%vs. 4.3%, P=0.609). The postoperative LTR rates were significantly different between the isolation and non-isolation groups (4.8%vs. 17.5%, P=0.032). Balloon catheter isolation [odds ratio (OR)=0.225, 95%confidence interval (CI):0.085–0.595, P=0.009] and tumor diameter(OR=2.808, 95%CI:1.186–6.647, P=0.019) were identified as independent factors influencing LTR *** cumulative LTP rates at 6 and 12 months after ablation showed no significant differences between the isolation and non-isolation groups (2.6%vs. 7.9%, P=0.661;4.9%vs. 9.8%, P=0.676, respectively).Cox proportional hazards regression analysis showed that tumor diameter was an independent risk factor for cumulative LTP rate (OR=3.445, 95%CI:1.406–8.437, P=0.017).Conclusions:Balloon catheter isolation-assisted MWA was safe and effective in the treatment of difficultsite liver cancer. Additionally, tumor diameter significantly influenced LTR and LTP rates after ablation.

关键词： Liver cancer Microwave ablation Balloon catheter isolation