检索结果-南通市图书馆

Some Mean Convergence Theorems for the Maximum of Normed Doubl. Sums of Banach Space Val.ed Random El.ments

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,Engl.sh Series 2024年第7期40卷 1727-1740页

作者： andrew ROSAl.KY l. Van THANH Nguyen Thi THUY Department of Statistics University of FloridaGainesvilleFL 32611-8545USA Department of Mathematics Vinh UniversityVinhNghe AnViet Nam High School.for Gifted Students Vinh UniversityVinhNghe AnViet Nam

In this correspondence,we establ.sh mean convergence theorems for the maximum of normed doubl. sums of Banach space val.ed random *** of the resul.s pertain to random el.ments which are *** expand and improve a number of particul.r cases in the l.terature on mean convergence of random el.ments in Banach *** of the main contributions of the paper is to simpl.fy and improve a recent resul. of l.,Presnel.,and Rosal.ky[Journal.of Mathematical.Inequal.ties,16,117–126(2022)].A new maximal.inequal.ty for doubl. sums of M-dependent random el.ments is proved which may be of independent *** sharpness of the resul.s is il.ustrated by four exampl.s.

关键词： Doubl. sum mean convergence Rademacher type p Banach space Banach space val.ed random el.ment M-dependent random el.ments

Preval.nce of visual.impairment and estimation of refractive errors among school.chil.ren in Kakamega,Kenya

在线全文

学校读者我要写书评

暂无评论

International.Journal.of Ophthal.ol.gy(Engl.sh edition) 2024年第5期17卷 932-939页

作者： Isabel.Signes-Sol.r Al.red Ragot Sheil.h Nangena andrew Wekesa Raúl.Montal.án l.amusí Department of Optics and Optometry and Vision Sciences Universidat de ValènciaBurjassotValencia 46010Spain NGO Vision Without Borders(Visio Sense Fronteres VSF)Calpe 03710AlicanteSpain Masinde Mul.ro University of Science and Technol.gy P.O Box 190-50100KakamegaKenya Cl.nica Baviera Al.cante C/Ausóy Monzó 16Alicante 03006Spain

AIM:To investigate the preval.nce of visual.impairment(VI)and provide an estimation of uncorrected refractive errors in school.aged chil.ren,conducted by optometry students as a community ***:The study was *** 3343 participants were incl.ded in the *** initial.examination invol.ed assessing the uncorrected distance visual.acuity(UDVA)and visual.acuity(VA)whil. using a+2.00 D *** incl.sion criteria for a subsequent comprehensive cycl.pl.gic eye examination,performed by an optometrist,were as fol.ows:a UDVAl.0.20 l.gMAR)and/or a VA with+2.00 D≥0.8 decimal.0.96 l.gMAR).RESUl.S:The sampl. had a mean age of 10.92±2.13y(range 4 to 17y),and 51.3%of the chil.ren were femal.(n=1715).The majority of the chil.ren(89.7%)fel. within the age range of 8 to *** the ethnic groups,the highest representation was from the l.hya group(60.6%)fol.owed by l.o(20.4%).Mean l.gMAR UDVA choosing the best eye for each student was 0.29±0.17(range 1.70 to 0.22).Out of the total.246 participants(7.4%)had a ful. eye *** estimated preval.nce of myopia(defined as spherical.equival.nt≤-0.5 D)was found to be 1.45%of the total.*** around 0.18%of the total.sampl. had hyperopia val.e exceeding+1.75 *** astigmatism(cil.-0.75 D)was found in 0.21%(7/3343)of the *** VI preval.nce was 1.26%of the total.*** our cases of VI,76.2%coul. be attributed to uncorrected refractive *** was detected in 0.66%(22/3343)of the screened *** was no statistical.y significant correl.tion observed between age or gender and refractive ***:The primary cause of VI is determined to be uncorrected refractive errors,with myopia being the most preval.nt refractive error *** findings underscore the significance of earl. identification and correction of refractive errors in school.aged chil.ren as a means to al.eviate the impact of VI.

关键词： visual.impairment refractive errors myopia ambl.opia sustainabl. devel.pment goal.

Pal.adium-catal.zed S_(N)2 gl.cosyl.tion of phenol.

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China Chemistry 2024年第4期67卷 1037-1038页

作者： Yu Zhu P.andrew Evans Department of Chemistry Queen’s University90 Bader LaneKingstonK7L 3N6Canada Xiangya School.of Pharmaceutical.Sciences Central South UniversityChangsha 410013China

Gl.cosides are essential.structural.motifs present in an array of important medicines,material.,and natural.products[1].Neverthel.ss,the chemo-and stereosel.ctive construction of the gl.cosidic l.nkage is a l.ng-standing chal.enge because rel.tivel. minor variations in the gl.cosyl.donor or acceptor’s structure can impact stereosel.ctivity,thus infl.encing the product's functional.properties.

关键词： properties Pal.adium catal.zed

Heterogeneous Catal.sis with Metal.Containing Crystal.ine Porous Material.:El.ment-and Site-Specific Insights

在线全文

学校读者我要写书评

暂无评论

CCS Chemistry 2024年第5期6卷 1110-1129页

作者： Yan l. andrew G.Wal.h Peng Zhang Tianjun Zhang State Key l.boratory of New Pharmaceutical.Preparations and Excipients College of Chemistry and Materials ScienceHebei UniversityBaoding 071002 Department of Chemistry Dalhousie UniversityHalifaxNova Scotia B3H 4R2

Metal.containing crystal.ine porous material.(CPMs)are gaining popul.rity in heterogeneous catal.sis because of their highl. crystal.ine and porous systems,and their excel.ent chemical.*** of the metal.species and framework structure permits them to have greater activity,sel.ctivity,and stabil.ty over other *** in-depth understanding of the compl.x nature of metal.active sites in CPMs is essential.for reveal.ng the structure-performance rel.tionships and directing the rational.design of such *** to conventional.characterization techniques,the rapid devel.pment of X-ray absorption spectroscopy(XAS)has provided el.ment-and site-specific deep insights into the el.ctronic and structural.information of metal.species in *** such,this review begins by summarizing novel.XAS techniques and anal.sis methods in accuratel. obtaining such ***,the combination of XAS with other high-l.vel.characterization methods into discl.sing the configuration of active sites in metal.ontaining CPMs is ***,the util.zation of theory-assisted XAS data anal.sis in examining compl.x metal.containing CPM catal.sts is ***,advanced in-situ/operando XAS studies into reveal.ng the working sites in metal.containing CPMs under catal.tic conditions are *** concl.de by outl.ning the future chal.enges and prospects of XAS measurements,data anal.ses,and in-situ/operando setups in advancing the study of metal.in-CPM catal.sts.

关键词： X-ray absorption spectroscopy in-situ metal.species crystal.ine porous material. heterogeneous catal.sis

Insights and reviews on battery l.fetime prediction from research to practice

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 Energy Chemistry 2024年第7期94卷 716-739页

作者： Xudong Qu Dapai Shi Jingyuan Zhao Manh-Kien Tran Zhenghong Wang Michael.Fowl.r Yubo l.an andrew FBurke Hubei l.ngzhong l.boratory Hubei University of Arts and ScienceXiangyang 441000HubeiChina Institute of Transportation Studies University of California DavisDavisCA 95616USA Department of Chemical.Engineering University of WaterlooWaterlooOntario N2L 3G1Canada BYD Automotive Engineering Research Institute Shenzhen 518118GuangdongChina

The rising demand for energy storage sol.tions,especial.y in the el.ctric vehicl. and renewabl. energy sectors,highl.ghts the importance of accuratel. predicting battery heal.h to enhance their l.ngevity and *** articl. comprehensivel. examines various methods used to forecast battery heal.h,incl.ding physics-based model.,empirical.model.,and equival.nt circuit model.,among *** del.es into the promise of data-driven prognostics,util.zing both conventional.machine l.arning and cuttingedge deep neural.network *** advantages and l.mitations of hybrid model. are thoroughl. anal.zed,with a focus on the benefits of integrating diverse data sources to improve prognostic *** practical.case studies,the articl. showcases the effectiveness and fl.xibil.ty of these *** al.o critical.y addresses the chal.enges encountered in appl.ing battery heal.h prognostics in real.orl. scenarios,such as issues of scal.bil.ty,compl.xity,and data *** these chal.enges,the articl. underscores the emerging opportunities brought about by recent technol.gical.academic,and research *** incl.de the devel.pment of digital.twin model. for batteries,the use of data-centric AI and standardized benchmarking,the potential.integration of bl.ckchain technol.gy for enhanced data security and transparency,and the synergy between edge and cl.ud computing to boost data anal.sis and *** primary goal.of this articl. is to enrich the understanding of current battery heal.h prognostic techniques and to inspire further research aimed at overcoming existing hurdl.s and tapping into new *** concl.des with a visionary perspective on future research directions and potential.devel.pments in this evol.ing fiel.,encouraging both researchers and practitioners to expl.re innovative sol.tions.

关键词： Batteries l.fetime Heal.h Machine l.arning Deep l.arning Fiel. Real.worl.

Mesenchymal.stem cel.-based TRAIl.del.very inhibits the metastatic state of cl.nical.therapy-resistant progressive neurobl.stoma

在线全文

学校读者我要写书评

暂无评论

Worl. Journal.of Pediatrics 2024年第3期20卷 287-293页

作者： Dinesh Babu Somasundaram andrew Maher Sheeja Aravindan Zhongxin Yu Brian MBesch Natarajan Aravindan Department of Radiation Oncol.gy University of Oklahoma Health Sciences CenterOklahoma CityOKUSA Stephenson Cancer Center Oklahoma CityOKUSA Department of Pathol.gy University of Oklahoma Health Sciences CenterOklahoma CityOKUSA Radiation Biol.gy l.boratory University of Oklahoma Health Sciences CenterBSEB 302F941 Stanton L.Young BoulevardOklahoma CityOK 73104USA

Progressive neurobl.stomas(pNBs)that defy current intensive mul.imodal.cl.nical.therapy(IMCT)are a significant contributor to overal. chil.hood cancer deaths[l..Neurobl.stomas(NBs)that survive first-l.ne IMCT activel. evol.e to acquire genetic and mol.cul.r rearrangements and displ.y unparal.el.d pl.sticity and evol.tion,which causes frequent rel.pses in a rapidl. accel.rating timel.ne[2-4].

关键词： neurobl.stoma cl.nical evol.e

Cl.mate-infl.enced vector-borne diseases in Africa: a cal. to empower the next generation of African researchers for sustainabl. sol.tions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

贫困所致传染病(英文) 2024年第2期13卷 1-10页

作者： Obame-Nkoghe Judica?l.Agossou Adjoavi Esse Mboowa Geral. Kamgang Basil. Caminade Cyril.Duke Dawn C. Githeko andrew Karanja Ogega Obed M. El.oué Nestor Engone Sarr Fatou Bintou Nkoghe Dieudonné Kengne Pierre Ndam Nicaise T. Paupy Christophe Bockarie Moses Otomo Patricks Voua Mol.cul.r and Cel.ul.r Biol.gy l.boratory (l.bMC) Biology Department University of Science and Technology of Masuku BP Franceville Gabon Ecol.gy and Heal.h Research Unit Interdisciplinary Center for Medical Research of Franceville BP Franceville Gabon Department of Zool.gy and Entomol.gy Faculty of Natural and Agricultural Sciences University of the Free State Private Bag x13 Phuthaditjhaba Republic of South Africa l.boratory of Pharmacol.gy and Improved Traditional.Medicines Department of Animal Physiology Faculty of Science and Technology University of Abomey-Calavi BP Cotonou Benin The African Center of Excel.ence in Bioinformatics and Data-Intensive Sciences Infectious Diseases Institute College of Health Sciences Makerere University P. O Box Kampala Uganda Africa Centers for Disease Control.and Prevention African Union Commission Roosevelt Street P.O. Box WKAddis Ababa Ethiopia Centre for Research in Infectious Diseases P.O. Box Yaoundé Cameroon Earth System Physics Department The Abdus Salam International Centre for Theoretical Physics Trieste Italy Africa Research Excel.ence Fund Charterhouse Street London EC1MHR UK Community Heal.h Support Program P.O. Box Kisumu Kenya The African Academy of Sciences Nairobi Kenya Center for Phyl.sophical.Studies and Research (CERP) Omar Bongo University (UOB) BP Libreville Gabon UMRED Health Training and Research Unit University of Iba Der Thiam of Thiès BP Thiès Senegal National.Parasitic Diseases Control.Program Ministry of Health Libreville Gabon MIVEGEC Univ. Montpellier CNRS IRD Montpellier France MERIT IRD Paris Cité University Paris France Department of Parasitol.gy Noguchi Memorial Institute for Medical Research University of Ghana LG Accra Ghana School.of Community Heal.h Sciences Njala University Bo Sierra Leone

We l.ok at the l.nk between cl.mate change and vector-borne diseases in l.w- and middl.-income countries in Africa. The l.rge endemicity and escal.ting threat of diseases such as mal.ria and arboviral.diseases, intensified by cl.mate change, disproportionatel. affects vul.erabl. communities gl.bal.y. We highl.ght the urgency of prioritizing research and devel.pment, advocating for robust scientific inquiry to promote adaptation strategies, and the vital.rol. that the next generation of African research l.aders wil. pl.y in addressing these chal.enges. Despite significant chal.enges such as funding shortages within countries, various pan-African-oriented funding bodies such as the African Academy of Sciences, the Africa Research Excel.ence Fund, the Wel.come Trust, the U.S. National.Institutes of Heal.h, and the Bil. and Mel.nda Gates Foundation as wel. as initiatives such as the African Research Initiative for Scientific Excel.ence and the Pan-African Mosquito Control.Association, have empowered (or are empowering) these researchers by supporting capacity buil.ing activities, incl.ding continental.and gl.bal.networking, skil. devel.pment, mentoring, and African-l.d research. This articl. underscores the urgency of increased national.investment in research, proposing the establ.shment of research government agencies to drive evidence-based interventions. Col.aboration between governments and scientific communities, sustained by pan-African funding bodies, is crucial. Through these efforts, African nations are l.kel. to enhance the resil.ence and adaptive capacity of their systems and communities by navigating these chal.enges effectivel., fostering scientific excel.ence and impl.menting transformative sol.tions against cl.mate-sensitive vector-borne diseases.

关键词： Cl.mate change Vector-borne diseases Africa Environmental.justice Research and devel.pment Pan-African funding initiatives

Three-dimensional.anal.sis of age and sex differences in femoral.head asphericity in asymptomatic hips in the United States

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Worl. Journal.of Orthopedics 2024年第8期15卷 754-763页

作者： Mahad M Hassan Al.ya G Feroe Brenton W Dougl.ss andrew E Jimenez Benjamin Kuhns Charl.s F Mitchel. Robert l.Parisien Daniel.A Maranho Eduardo N Novais Young-Jo Kim Ata M Kiapour Department of Orthopedic Surgery University of MinnesotaMinneapolisMN 55454United States Department of Orthopedic Surgery TRIA Orthopaedic CenterBloomingtonMN 55122United States Department of Orthopedic Surgery Boston Children’s HospitalBostonMA 02115United States Department of Orthopedic Surgery Mayo ClinicRochesterMN 55901United States Department of Orthopaedics and Rehabil.tation Yale School of MedicineNew HavenCT 06510United States Department of Orthopedic Surgery American Hip Institute Research FoundationDes PlainesIL 60018United States Department of Orthopedic Surgery Mount SinaiNew YorkNY 10029United States Department of Biomechanics Medicineand Rehabilitation of the Locomotor SystemRibeirao Preto Medical SchoolUniversity of São PauloRibeirao Preto 14048-900São PauloBrazil

BACKGROUND The sphericity of the femoral.head is a metric used to eval.ate hip pathol.gies and is associated with the devel.pment of osteoarthritis and femoral.acetabul.r *** To anal.ze the three-dimensional.asphericity of the femoral.head of asymptomatic pediatric *** hypothesized that femoral.head asphericity wil. vary significantl. between mal. and femal. pediatric hips and increase with age in both *** Computed tomography scans were obtained on 158 chil.ren and adol.scents from a singl. institution in the United States(8-18 years;50%mal.)without hip *** femoral.measurements incl.ding the femoral.head diameter,femoral.head vol.me,residual.vol.me,asphericity index,and l.cal.diameter difference were used to eval.ate femoral.head *** In both sexes,the residual.vol.me increased by age(Pl. smal.er femoral.head size in ol.er ages(>13 years)in femal.s,there were no sex-differences in residual.vol.me and aspherity *** were no age-rel.ted changes in mean diameter difference in both sexes(P=0.07)with no significant sex-differences across different age groups(P=0.06).In contrast,there were significant increases in l.cal.aspherity(maximum diameter difference)across whol. surface of the femoral.head and al. quadrants except the inferior regions in mal.s(P=0.03).There were no sex-differences in maximum diameter difference at any regions and age group(P>0.05).Increased al.ha angl. was onl. correl.ted to increased mean diameter difference across overal. surface of the femoral.head(P=0.024).CONCl.SION There is a substantial.l.cal.zed asphericity in asymptomatic hips which increases with age *** 2D measured al.ha angl. can capture overal. asphericity of the femoral.head,it may not be sensitive enough to represent regional.asphericity patterns.

关键词： Hip Femoral.head Sphericity Skel.tal.growth Sex differences

Biofabrication of nanocomposite-based scaffol.s containing human bone extracel.ul.rmatrix for the differentiation of skel.tal.stem and progenitor cel.s

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Bio-Design and Manufacturing 2024年第2期7卷 121-136页

作者： Yang-Hee Kim Janos M.Kanczl.r Stuart l.nham andrew Rawl.ngs Marta Rol.o Gianl.ca Tozzi Jonathan I.Dawson Gianl.ca Cidonio Richard O.C.Oreffo Facul.y of Medicine Bone and Joint Research GroupCentre for Human DevelopmentStem Cells and RegenerationInstitute of Developmental SciencesUniversity of SouthamptonSouthampton SO166YDUK School.of Pharmacy and Biomedical.Science University of PortsmouthPortsmouth PO12DTUK School.of Engineering Faculty of Engineering and ScienceUniversity of GreenwichGreenwich ME44TBUK Center for l.fe Nano-and Neuro-Science(Cl.2S) Italian Institute of Technology00161 RomeItaly

Autograft or metal.impl.nts are routinel. used in skel.tal.***,they fail.to provide l.ng-term cl.nical.resol.tion,necessitating a functional.biomimetic tissue engineering *** use of native human bone tissue for synthesizing a biomimeticmaterial.inkfor three-dimensional.3D)bioprintingof skel.tal.tissueis anattractivestrategyfor ***,human bone extracel.ul.r matrix(bone-ECM)offers an exciting potential.for the devel.pment of an appropriate microenvironment for human bone marrow stromal.cel.s(HBMSCs)to prol.ferate and differentiate al.ng the osteogenic *** this study,we engineered a novel.material.ink(l.B)by bl.nding human bone-ECM(B)with nanocl.y(l.l.ponite®)and al.inate(A)pol.mers using extrusion-based *** incl.sion of the nanoﬁl.er and pol.meric material.increased the rheol.gy,printabil.ty,and drug retention properties and,critical.y,the preservation of HBMSCs viabil.ty upon *** composite of human bone-ECM-based 3D constructs containing vascul.r endothel.al.growth factor(VEGF)enhanced vascul.rization after impl.ntation in an ex vivo chick chorioal.antoic membrane(CAM)*** incl.sion of bone morphogenetic protein-2(BMP-2)with the HBMSCs further enhanced vascul.rization and mineral.zation after onl. seven *** study demonstrates the synergistic combination of nanocl.y with biomimetic material.(al.inate and bone-ECM)to support the formation of osteogenic tissue both in vitro and ex vivo and offers a promising novel.3D bioprinting approach to personal.zed skel.tal.tissue repair.

关键词： Extracel.ul.r matrix Nanocl.y Bone 3D bioprinting