检索结果-南通市图书馆

Research in Astronomy and Astrophysics 2024年第6期24卷 225-233页

作者： Xue-Feng Lu Li-Ming Song Ming-yu Ge Shuang-Nan Zhang Jin-Lu qu Ce Cai Cong-Zhan Liu Cheng-Kui Li yu-Cong Fu Ying-Chen Xu Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsBeijing 100049China University of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100049China College of Physics and Hebei Key Laboratory of Photophysics Research and Application Hebei Normal UniversityShijiazhuang 050024China Department of Astronomy Beijing Normal UniversityBeijing 100875China

In October 2022,the magnetar SGR J1935+2154 entered the active outburst *** the episode,the InsightHXMT satellite carried out a long observation that lasted for 20 *** than 300 bursts were detected,and a certain amount of persistent radiation signals were also *** paper mainly introduces the results of persistent radiation profile folding and period search based on Insight-HXMT *** the same time,the burst phase distribution characteristics,spectral lag results of burst,the spectral characteristics of zero-lag bursts and the time-resolved spectral evolution characteristics of high-flux bursts are *** found that there is no significant delay feature during different energy bands for the bursts of SGR J1935+*** observed zero-lag burst does not have a unique *** time-resolved spectrum of the individual burst has consistent spectral types and spectral parameters at different time periods of the *** also find that the burst number phase distribution and the burst photon phase distribution have the same tendency to concentrate in specific regions of the persistent emission profile.

关键词： radiation mechanisms:general dense matter magnetic fields

A novel profile modification HPF-Co gel satisfied with fractured low permeability reservoirs in high temperature and high salinity

在线全文

学校读者我要写书评

暂无评论

Petroleum Science 2024年第1期21卷 683-693页

作者： Ya-Kai Li Ji-Rui Hou Wei-Peng Wu Ming qu Tuo Liang Wei-Xin Zhong yu-Chen Wen Hai-Tong Sun Yi-Nuo Pan China University of Petroleum Beijing Beijing102249China PetroChina Tarim Oilfield Company Korla 841000XinjiangChina Key Laboratory of Improving Oil and Gas Recovery of Ministry of Education Northeast Petroleum University Daqing 163318HeilongjiangChina Xi'an Shiyou University Xi'an 710065ShaanxiChina Northwest Oilfield Company SINOPECUrumqi 830011XinjiangChina

Conformance control and water plugging are a widely used EOR method in mature ***,majority of conformance control and water plugging agents are unavoidable dehydrated situation in high-temperature and high-salinity low permeability ***,a novel conformance control system HPF-Co gel,based on high-temperature stabilizer(CoCl_(2)·H_(2)O,CCH)is *** HPF-Co bulk gel has better performances with high temperature(120℃)and high salinity(1×10^(5)mg/L).According to Sydansk coding system,the gel strength of HPF-Co with CCH is increased to code *** dehydration rate of HPF-Co gel is 32.0%after aging for 150 d at 120℃,showing excellent thermal *** rheological properties of HPF gel and HPF-Co gel are also *** results show that the storage modulus(G′)of HPF-Co gel is always greater than that of HPF *** effect of CCH on the microstructure of the gel is *** results show that the HPF-Co gel with CCH has a denser gel network,and the diameter of the three-dimensional network skeleton is 1.5-3.5μ*** 90 d of aging,HPF-Co gel still has a good three-dimensional *** spectroscopy results show that CCH forms coordination bonds with N and O atoms in the gel amide group,which can suppress the vibration of cross-linked sites and improve the stability at high *** core plugging test determines the optimized polymer gel injection strategy and injection velocity with HPF-Co bulk gel system,plugging rate exceeding 98%.Moreover,the results of subsequent waterflooding recovery can be improved by 17%.

关键词： Low permeability reservoir High-temperature resistant gel Complexation reaction Polymer gel injection strategy Plugging rate Enhanced oil recovery

Selectively nucleotide-derived RuP on N,P-codoped carbon with engineered mesopores for energy-efficient hydrogen production assisted by hydrazine oxidation

在线全文

学校读者我要写书评

暂无评论

SusMat 2024年第1期4卷 166-177页

作者： Xiya Guan yu Sun Simeng Zhao Haibo Li Suyuan Zeng Qingxia Yao Rui Li Hongyan Chen Konggang qu School of Chemistry and Chemical Engineering Shandong Provincial Key Laboratory/Collaborative Innovation Center of Chemical Energy Storage&Novel Cell TechnologyLiaocheng UniversityLiaochengChina

Integrating hydrogen evolution reaction(HER)with hydrazine oxidation reaction(HzOR)has an encouraging prospect for the energy-saving hydrogen production,demanding the high-performance bifunctional HER/HzOR *** phosphide/doped carbon composites have exhibited superior activity towardmultiple electrocatalytic *** explore the decent water-soluble precursors containing bothNand P elements is highly attractive to facilely prepare metal phosphide/doped carbon ***,as one kind ecofriendly biomolecules,adenine nucleotide was first employed to selectively fabricate the highly pure RuP nanoparticles embedded into porous N,P-codoped carbons(RuP/PNPC)with a straightforward“mix-and-pyrolyze”*** newly prepared RuP/PNPC only requires 4.0 and−83.0 mV at 10 mA/cm^(2) separately in alkaline HER and HzOR,outperforming most of reported electrocatalysts,together with the outstanding neutral bifunctional ***,the two-electrode alkaline and neutral overall hydrazine splitting both exhibit significant power-efficiency superiority to the corresponding overall water splitting with the voltage difference of larger than 2 V,which can be also easily driven by the fuel cells and solar cells with considerableH2 *** report innovates the N-and P-bearing adenine nucleotide to effortlessly synthesize the high-quality RuP/doped carbon composite catalysts,highly potential as a universal platform for metal phosphide-related functional materials.

关键词： bifunctional electrocatalyst hydrazine oxidation hydrogen energy hydrogen evolution RuP

Two-year longitudinal change in choroidal and retinal thickness in school-aged myopic children:exploratory analysis of clinical trials for myopia progression

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Eye and Vision 2024年第4期10卷 1-10页

作者： Meiping Xu Xinping yu Minghui Wan Kemi Feng Junxiao Zhang Meixiao Shen BjÖrn Drobe Hao Chen Jia qu Jinhua Bao Eye Hospital and School of Ophthalmology and Optometry Wenzhou Medical UniversityWenzhouZhejiangChina National Clinical Research Center for Ocular Diseases WenzhouZhejiangChina. WEiRC WMU-Essilor International Research CenterWenzhouZhejiangChina R&D Vision Sciences AMERA EssilorInternationalSingaporeSingapore

Background:With increasing axial length(AL)and myopia progression,the micro-structure of the retina and choroid gradually *** study describes the longitudinal changes in retinal and choroidal thickness in school-aged children with myopia and explores the relationship between changes in choroidal thickness and myopia ***:An exploratory analysis of a randomized trial was ***(n=168,aged 7 to 12 years)with myopia from-0.75 diopter(D)to-4.00 D were enrolled in this prospective longitudinal *** refraction,AL,retinal and choroidal thicknesses were measured at baseline and at 1-and 2-year follow-ups."Rapid progression myopia"was defined as increasing in myopia>1.00 D and'"stable progression myopia"was≤1.00 D during the 2-year *** affecting the changes in choroidal thickness were analysed using linear mixed ***:AL significantly increased by 0.67±0.24 mm with a myopic shift of-1.50±0.64 D over the 2 *** overall retinal thickness increased from 251.12±15.91μm at baseline to 253.47±15.74μm at the 2-year followup(F=23.785,P<0.001).The subfoveal choroidal thickness decreased from 231.03±54.04μm at baseline to 206.53±59.71μm at the 2-year follow-up(F=73.358,P<0.001).Choroidal thinning was significantly associated with AL elongation(β=-43.579μm/mm,P=0.002)and sex(β=-17.258,P=0.001).Choroidal thickness continued to decrease in subjects with rapid progression(F=92.06,P<0.001)but not in those with steady progression(F=2.23,P=0.119).Conclusion:Significant choroidal thinning was observed and was associated with rapid progression and *** findings indicate a need to understand the role of the choroid in eye growth and myopia ***/Precis:The macular choroidal thickness of myopic children is relevant to different degrees of myopic progression in this 2-year longitudinal *** findings suggest that control of choroidal thickness might work to regulate human ocular growth.

关键词： Axial length Choroidal thickness Children Myopia Spectral-domain optical coherence tomography

Fli1 acts in parallel with Pu.1 to control macrophage and neutrophil fate in zebrafish

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Genetics and Genomics 2024年第3期51卷 359-362页

作者： Ao Zhang Jingao Lu Shachuan Feng Huapeng yu Tao yu Shizheng Zhao Kemin Chen Zhibin Huang Jin Xu Jianan Y.qu Zilong Wen Division of Life Science Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina Division of Cell Developmental and Integrative BiologySchool of MedicineSouth China University of TechnologyGuangzhouGuangdong 510006China Department of Immunology and Microbiology School of Life ScienceSouthern University of Science and TechnologyShenzhenGuangdong 518055China Biomedical Research Institute Shenzhen Peking University-Hong Kong University of Science and Technology Medical CenterShenzhenGuangdong 518036China Department of Electronic and Computer Engineering Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina Greater Bay Biomedical Innocenter Shenzhen Bay LaboratoryShenzhenGuangdong 518067China

Macrophages and neutrophils are key components of myeloid cells and play critical roles in innate immune responses,organ formation,and tissue *** integrity of their functions heavily relies on the generation of a proper number of mature macrophages and neutrophils through embryonic and adult *** mammalian adult myelopoiesis,oligopotent common myeloid progenitors(CMPs)are known to be the earliest myeloid progenitors,which give rise to granulocyte-macrophage progenitors(GMPs),subsequently differentiate into unipotent neutrophil and macrophage precursors,and finally,mature macrophages and neutrophils(Orkin and Zon,2008).In contrast,the ontogeny of embryonic myelopoiesis and the mechanism underlying the formation of macrophages and neutrophils remainless understood.

关键词： fish macrophage homeostasis

Cationic engineered nanodiamonds for efficient antibacterial surface with strong wear resistance

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2024年第3期17卷 939-948页

作者： Fu-Kui Li Wen-Bo Zhao Yong Wang Wen-Tao Huang Ya-lun Ku Hang Liu Rui Guo Hui-Hui yu Kai-Kai Liu Chong-Xin Shan Henan Key Laboratory of Diamond Optoelectronic Materials and Devices Key Laboratory of Materials PhysicsMinistry of Educationand School of Physics&MicroelectronicsZhengzhou UniversityZhengzhou 450052China

The spread of diseases caused by bacterial adhesion and immobilization in public places constitutes a serious threat to public *** of bacteria spread by the construction of an antibacterial surface takes precedence over post-infection ***,we demonstrate an effective antibacterial surface with strong wear resistance by constructing cationic engineered nanodiamonds(C-NDs).The C-NDs with positive surface potentials interact effectively with bacteria through electrostatic interactions,where the C-NDs act on the phospholipid bilayer and lead to bacterial membrane collapse and rupture through hydrogen bonding and residual surface oxygen-containing reactive *** this case,bactericidal rate of 99.99%and bacterial biofilm inhibition rate of more than 80%can be achieved with the C-NDs concentration of 1 mg/*** addition,the C-NDs show outstanding antibacterial stability,retaining over 87%of the antibacterial effect after stimulation by adverse environments of heat,acid,and external ***,an antibacterial surface with high wear resistance obtained by integrating C-NDs with commercial plastics has been *** antibacterial surface with a mass fraction of 1 wt.%C-NDs improved abrasion resistance by 3981 times,with 99%killing of adherent *** work provides an effective strategy for highly efficient antibacterial wear-resistant surface,showing great practical applications in public health environments.

关键词： antibacterial surface cationic engineered nanodiamonds wear-resistant

Electroacupuncture at Sensitized Acupoints Relieves Somatic Referred Pain in Colitis Rats by Inhibiting Sympathetic-Sensory Coupling to Interferewith 5-HT Signaling Pathway

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Integrative Medicine 2024年第2期30卷 152-162页

作者： YANG Ying qu Jin-yu GUO Hua ZHOU Hai-ying RUAN Xia PENG Ying-chun SHEN Xue-fang XIONG Jin WANG Yi-li School of Clinical Medicine Chengdu Medical CollegeChengdu(610500)China Department of Rehabilitation Medicine the First Affliated Hospital of Chengdu Medical CollegeChengdu(610500)China Department of Rehabilitation Medicine West China HospitalSichuan University/West China School of NursingSichuan UniversityChengdu(610041)China Department of Neurology the First Affiliated Hospital of Chengdu Medical CollegeChengdu(610500)China

Objective:To investigate whether electroacupuncture(EA) at sensitized acupoints could reduce sympathetic-sensory coupling(SSC) and neurogenic inflammatory response by interfering with 5-hydroxytryptamine(5-HT)ergic neural pathways to relieve colitis and somatic referred pain,and explore the underlying ***:Rats were treated with 5% dextran sodium sulfate(DSS) solution for 7 days to establish a colitis *** rats were randomly divided into the control and model groups according to a random number table(n=6).According to the Research on Rat Acupoint Atlas",sensitized acupoints and non-sensitized acupoints were *** were randomly divided into the control,model,Zusanli-EA(ST 36),Dachangshu-EA(BL 25),and Xinshu(BL 15) groups(n=6),as well as the control,model,EA,and EA+GR113808(a 5-HT inhibitor)groups(n=6).The rats in the control group received no *** was administered on 2 days after modeling using the stimulation pavameters:1 mA,2 Hz,for 30 min,with sparse and dense waves,for 14 consecutive ***113808 was injected into the tail vein at 5 mg/kg before EA for 10 min for 7 consecutive *** sensitivity was assessed with von Frey *** weight and disease activity index(DAI) scores of rats were *** and eosin staining was performed to observe colon *** was analyzed by immunofluorescence *** staining was performed to detect 5-HT and substance P(SP) *** calcitonin gene-related peptide(CGRP) in skin tissue and tyrosine hydroxylase(TH) protein levels in DRG were detected by Western *** levels of hyaluronic acid(HA),bradykinin(BK),prostaglandin I2(PGI2) in skin tissue,5-HT,tryptophan hydroxylase 1(TPH1),serotonin transporters(SERT),5-HT 3 receptor(5-HT3R),and 5-HT 4 receptor(5-HT4R) in colon tissue were measured by enzyme-linked immunosorbent assay(ELISA).Results:BL 25 and ST 36 acupoints were determined as sensitized acupoints,and BL 1

关键词： electroacupuncture sensitized acupoints sympathetic-sensory coupling 5-hydroxytryptamine neurogenic inflammation somaticreferredpain

在线全文

学校读者我要写书评

暂无评论

导电聚苯胺纳米片的合成与表征

东北师大学报（自然科学版） 2008年第4期40卷 85-88页

作者：罗云清刘文丛龚剑瞿伦玉东北师范大学化学学院吉林长春130024 吉林农业大学资源与环境学院吉林长春130118

以过二硫酸铵为氧化剂,以H4SiW12O40为质子酸和掺杂剂,通过低温固相研磨法成功合成出H4SiW12O40掺杂的聚苯胺(PANI)纳米片.以红外光谱、紫外-可见光谱、X射线粉末衍射光谱和扫描电镜等手段对杂多酸掺杂PANI纳米片进行了表征.采用标准四... 详细信息

以过二硫酸铵为氧化剂,以H4SiW12O40为质子酸和掺杂剂,通过低温固相研磨法成功合成出H4SiW12O40掺杂的聚苯胺(PANI)纳米片.以红外光谱、紫外-可见光谱、X射线粉末衍射光谱和扫描电镜等手段对杂多酸掺杂PANI纳米片进行了表征.采用标准四探针法对H4SiW12O40掺杂的PANI纳米片进行了测定,测得其电导率为1.5 S/cm.

关键词：聚苯胺杂多酸研磨法固相反应纳米片电导率

Combining lymph node ratio to develop prognostic models for postoperative gastric neuroendocrine neoplasm patients

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Oncology 2024年第8期16卷 3507-3520页

作者： Wen Liu Hong-yu Wu Jia-Xi Lin Shu-Ting qu Yi-Jie Gu Jin-Zhou Zhu Chun-Fang Xu Department of Gastroenterology Changzhou Hospital of Traditional Chinese MedicineChangzhou 213000Jiangsu ProvinceChina Department of Gastroenterology The First Affiliated Hospital of Soochow UniversitySuzhou 215006Jiangsu ProvinceChina Department of Gastroenterology Suzhou Ninth Hospital Affiliated to Soochow UniversitySuzhou 215200Jiangsu ProvinceChina

BACKGROUND Lymph node ratio(LNR)was demonstrated to play a crucial role in the prognosis of many ***,research concerning the prognostic value of LNR in postoperative gastric neuroendocrine neoplasm(NEN)patients was *** To explore the prognostic value of LNR in postoperative gastric NEN patients and to combine LNR to develop prognostic *** A total of 286 patients from the Surveillance,Epidemiology,and End Results database were divided into the training set and validation set at a ratio of 8:2.92 patients from the First Affiliated Hospital of Soochow University in China were designated as a test *** regression analysis was used to explore the relationship between LNR and disease-specific survival(DSS)of gastric NEN *** survival forest(RSF)algorithm and Cox proportional hazards(CoxPH)analysis were applied to develop models to predict DSS respectively,and compared with the 8th edition American Joint Committee on Cancer(AJCC)tumornode-metastasis(TNM)*** Multivariate analyses indicated that LNR was an independent prognostic factor for postoperative gastric NEN patients and a higher LNR was accompanied by a higher risk of *** RSF model exhibited the best performance in predicting DSS,with the C-index in the test set being 0.769[95%confidence interval(CI):0.691-0.846]outperforming the CoxPH model(0.744,95%CI:0.665-0.822)and the 8th edition AJCC TNM staging(0.723,95%CI:0.613-0.833).The calibration curves and decision curve analysis(DCA)demonstrated the RSF model had good calibration and clinical ***,the RSF model could perform risk stratification and individual prognosis prediction *** A higher LNR indicated a lower DSS in postoperative gastric NEN *** RSF model outperformed the CoxPH model and the 8th edition AJCC TNM staging in the test set,showing potential in clinical practice.

关键词： Gastric neuroendocrine neoplasm Lymph node ratio Disease-specific survival Random survival forest Predictive model

A positive feedback inhibition of isocitrate dehydrogenase 3β on paired-box gene 6 promotes Alzheimer-like pathology

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Signal Transduction and Targeted Therapy 2024年第5期9卷 2324-2340页

作者： Xin Wang Qian Liu Hai-tao yu Jia-zhao Xie Jun-ning Zhao Zhi-ting Fang Min qu Yao Zhang Ying Yang Jian-Zhi Wang Department of Pathophysiology School of Basic MedicineKey Laboratory of Education Ministry of China/Hubei Province for Neurological DisordersTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina Department of Fundamental Medicine Wuxi School of MedicineJiangnan UniversityWuxiJiangsu 214122China Hubei Provincial Key Laboratory for Applied Toxicology Hubei Provincial Center for Disease Control and PreventionHubei Provincial Academy of Preventive MedicineWuhan 430000China Endocrine Department of Liyuan Hospital Key Laboratory of Ministry of Education of China for Neurological DisordersTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430077China Co-innovation Center of Neuroregeneration Nantong UniversityNantong 226000China

Impaired brain glucose metabolism is an early indicator of Alzheimer’s disease(AD);however,the fundamental mechanism is *** this study,we found a substantial decline in isocitrate dehydrogenase 3β(IDH3β)levels,a critical tricarboxylic acid cycle enzyme,in AD patients and AD-transgenic mice’s *** investigations demonstrated that the knockdown of IDH3βinduced oxidation-phosphorylation uncoupling,leading to reduced energy metabolism and lactate *** resulting increased lactate,a source of lactyl,was found to promote histone lactylation,thereby enhancing the expression of paired-box gene 6(PAX6).As an inhibitory transcription factor of IDH3β,the elevated PAX6 in turn inhibited the expression of IDH3β,leading to tau hyperphosphorylation,synapse impairment,and learning and memory deficits resembling those seen in *** AD-transgenic mice,upregulating IDH3βand downregulating PAX6 were found to improve cognitive functioning and reverse AD-like ***,our data suggest that impaired oxidative phosphorylation accelerates AD progression via a positive feedback inhibition loop of IDH3β-lactate-PAX6-IDH3β.Breaking this loop by upregulating IDH3βor downregulating PAX6 attenuates AD neurodegeneration and cognitive impairments.

关键词： metabolism Alzheimer impaired