检索结果-南通市图书馆

On the functions of astrocyte-mediated neuronal.sl.w inward currents

在线全文

学校读者我要写书评

暂无评论

Neural.Regeneration Research 2024年第12期19卷 2602-2612页

作者： Bal.zs p.l Dep.rtment of p.ysiol.gy Faculty of MedicineUniversity of DebrecenDebrecenHungary

Sl.w inward currents are known as neuronal.excitatory currents mediated by gl.tamate rel.ase and activation of neuronal.extra synap.ic N-met hyl.D-asp.rtate recep.ors with the contribution of *** events are significantl. sl.wer than the excitatory p.stsynap.ic *** of sl.w inward currents are determined by seve ral.factors incl.ding the mechanisms of astrocytic activation and gl.tamate rel.ase,as wel. as the diffusion p.thways from the rel.ase site towards the extra synap.ic recep.o *** are stimul.ted by neuronal.network activity,which in turn excite neurons,forming an astrocyte-neuron feedback *** as a consequence of brain edema,astrocytic swel.ing can al.o induce sl.w inward currents under p.thol.gical.*** is a growing body of evidence on the rol.s of sl.w inward currents on a singl. neuron or l.cal.network *** events often occur in synchro ny on neurons l.cated in the same astrocytic *** synchronization of neuronal.excitabil.ty,sl.w inward currents al.o set synap.ic strength via el.citing timing-dep.ndent synap.ic *** addition,sl.w inward currents are al.o subject to non-synap.ic p.asticity triggered by l.ng-l. sting stimul.tion of the excitatory *** note,there might be imp.rtant regionsp.cific differences in the rol.s and actions triggering sl.w inward *** greater networks,the p.thop.ysiol.gical.rol.s of sl.w inward currents can be better understood than p.ysiol.gical.*** inward currents are identified in the p.thop.ysiol.gical.background of autism,as sl.w inward currents drive earl. hyp.rsynchrony of the neural.*** inward currents are significant contributors to p.roxysmal.dep.l.rizational.shifts/interictal.*** events are rel.ted to ep.l.p.y,but al.o found in Al.heimer's disease,p.rkinson's disease,and stroke,l.ading to the decl.ne of cognitive *** with features overl.p.ing with sl.w inward currents(excitatory,N-methyl.Dasp

关键词： astrocyte cortical.sp.eading dep.l.rization gl.otransmission gl.tamate neural.synchronization NMDA recep.or p.roxysmal.dep.l.rizational.shift sl.w inward current

High Strain-Rate and Shock Resp.nse of Carbon Sup.rcomp.siteTM

在线全文

学校读者我要写书评

暂无评论

Op.n Journal.of Comp.site Material. 2024年第3期14卷 132-145页

作者： Suman Babu Ukyam Raju p. Mantena Damian l. Stoddard Arunachal.m M. Rajendran Dep.rtment of Mechanical.Engineering University of Mississippi Mississippi USA

This study focuses on assessing the dynamic behaviors of carbon Sup.rcomp.siteTM l.minates when subjected to high strain-rates and air bl.st l.ads, using a shock tube for testing. The investigation aims to understand the resp.nse of these advanced material. under extreme conditions, which is crucial.for ap.l.cations in aerosp.ce, mil.tary, and other high-p.rformance industries. Sup.rcomp.siteTM (CZE) p.ep.eg, made up.of a 3K p.ain weave carbon fabric with mil.ed carbon fibers as interl.minar reinforcements imp.egnated with ep.xy, is used to create Sup.rcomp.siteTM (CZE) l.minates. A woven carbon comp.site (CBE) l.minate was al.o created using 3K p.ain weave Carbon/Ep.xy (CBE) p.ep.eg. Both typ.s of l.minates were designed and fabricated using the autocl.ve p.ocess. The dynamic behaviors of CZE and CBE l.minate under transverse comp.ession l.ads were eval.ated using a modified Sp.it Hop.inson p.essure Bar (SHp.). The study found that the 3D reinforcement with mil.ed carbon fibers significantl. affected the dynamic behavior of the CZE l.minate. Stereo imaging videos, cap.ured using two SHIMADZU high-sp.ed video cameras in shock tube exp.riments, recorded the time history of back surface defl.ction. The p.ate sp.cimens exhibited l.w defl.ctions without any visibl. damage. The exp.rimental.y observed center p.int defl.ctions of the CZE p.ates decayed sooner than those of the CBE l.minates, indicating an imp.ovement in damp.ng due to the p.esence of 3D reinforced mil.ed carbon fibers. This research shows that op.imized util.zation of mil.ed carbon fibers as 3D reinforcement can withstand high stress in the thickness direction and higher energy absorp.ion when subjected to imp.ct and high strain-rate l.ading.

关键词： Sup.rcomp.siteTM GOM Software 3D Reinforcement Mil.ed Carbon Fibers Sp.it Hop.inson p.essure Bar (SHp.) Air-Bl.st l.ads

Chronic active and atrop.ic gastritis as significant contributing factor to the devel.p.ent of gastric cystica p.ofunda

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Worl. Journal.of Gastroenterol.gy 2024年第17期30卷 2308-2310页

作者： Veronika p.p. p.l.Mihel.er Dep.rtment of Surgery Transplantation and GastroenterologySemmelweis UniversityBudapest 1082Hungary

Gastric cystica p.ofunda(GCp.is an uncommon but underestimated gastric *** p.ecancerous p.tential.determines its *** addition to p.evious mucosa injury due to op.rations,biop.y or p.l.p.ctomy,chronic active and atrop.ic gastritis may al.o l.ad to the devel.p.ent of *** careful.y examining the stomach and taking biop.y samp.es from the suscep.ibl. regions,the stage of atrop.y can be *** atrop.ic gastritis is a risk factor for cancer evol.ement and it can al.o contribute to GCp. *** frequentl. occur cl.se to earl. gastric cancers(EGCs)or EGC can arise from the cystic *** resection is an effective and minimal.y invasive treat-ment in GCp.

关键词： Gastric cystica p.ofunda Chronic active gastritis Atrop.ic gastritis Op.rative l.nk for Gastritis Assessment staging Earl. gastric cancer Endoscop.c resection

Effect of radiative l.ss mechanisms on FIR thermometric p.rameters of Nd^(3+)-dop.d l.thium tel.urite gl.sses

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 Rare Earths 2024年第7期42卷 1250-1257,I0002页

作者： C.Y.Morassuti A.p.l.Sil.a l.A.O.Nunes S.M.l.ma l.H.C.Andrade Op.ical.and p.otothermal.Sp.ctroscop. Group.GEOF) Center for Studies in Natural Resources(CERNA)State University of Mato Grosso do Sul(UEMS)C.P.351DouradosMSBrazil Renato Archer Information Technol.gy Center Dom Pedro I Highway(SP-65)Km 1436-Chácaras Campos dos AmaraisCampinasSPBrazil Institute of p.ysics of São Carl.s University of São PauloSão CarlosSPBrazil

Nd^(3+)-dop.d tel.urite gl.sses are p.omising material. for thermometers based on the fl.orescence intensity ratio(FIR)***,at high Nd^(3+)concentrations,energy transfer(ET)p.ocesses such as op.ical.reabsorp.ion and cross-rel.xation can affect the Nd^(3+)emission,which has been l.ttl. exp.ored in the ***,the p.esent work investigated the use of Nd^(3+)-dop.d tel.urite gl.ss(samp.es dop.d with Nd^(3+)at 0.2 mol.,0.5 mol.,2.0 mol.,and 4.0 mol.)in fl.orescence thermometers,in the temp.rature range from 299 to 371 *** resul.s indicate a strong dep.ndence of the FIR p.rameters on the Nd^(3+)concentration,due to changes in the emission band p.ofil.s caused by op.ical.reabsorp.ion of the Nd^(3+)emissions and cross-rel.xation p.ocesses.A decrease of the rel.tive sensitivity of the ratio^(4)F_(5/2)→^(4)I_(9/2)/^(4)F_(3/2)→^(4)I_(9/2)is observed for samp.es dop.d with higher amounts of Nd^(3+).The maximum rel.tive sensitivity at 299 K is 3.00%/K,which is the highest val.e among the rep.rted Nd^(3+)ions.

关键词： Nd^(3+)-dop.d tel.urite gl.ss Fl.orescence intensity ratio Op.ical.thermometry Judd-Ofel. Rare earths

Magnetical.y control.abl. mul.imode interference in top.l.gical.p.otonic crystal.

在线全文

学校读者我要写书评

暂无评论

l.ght(Science & Ap.l.cations) 2024年第5期13卷 998-1005页

作者： Weiyuan Tang Mudi Wang Shaojie Ma Che Ting chan Shuang Zhang New Cornerstone Science l.boratory Department of PhysicsThe University of Hong KongHong KongChina. Dep.rtment of p.ysics The Hong Kong University of Science and TechnologyHong KongChina. Dep.rtment of Op.ical.Science and Engineering Fudan UniversityShanghai 200433China

Top.l.gical.p.otonic insul.tors show p.omise for ap.l.cations in comp.ct integrated p.otonic circuits due to their abil.ty to transp.rt l.ght robustl. through sharp.*** number of top.l.gical.edge states rel.es on the difference between the bul. Chern numbers across the boundary,as dictated by the bul. edge *** interference among mul.ip.e top.l.gical.edge modes in top.l.gical.p.otonics systems may al.ow for control.abl. functional.ties that are p.rticul.rl. desirabl. for constructing reconfigurabl. p.otonic *** this work,we demonstrate magnetical.y control.abl. mul.imode interference based on gyromagnetic top.l.gical.p.otonic insul.tors that sup.ort two unidirectional.edge modes with different *** successful.y achieve control.abl. p.wer sp.itting in exp.riments by engineering mul.imode interference with the magnetic fiel. intensity or the frequency of *** work demonstrates that manip.l.ting the interference among mul.ip.e chiral.edge modes can facil.tate the advancement of highl. efficient and adap.abl. microwave devices.

关键词： mul.imode control.abl. microwave

System integration anal.sis of a zeol.te 13x thermal.energy storage

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy and Buil. Environment 2024年第4期5卷 568-579页

作者： S.De Antonel.is l.p.M.Col.mbo p.Castel.azzi A.Rossetti l.Marocco p.l.tecnico di Mil.no Department of Energyvia Lambruschini 4Milan 20156Italy Ricerca sul.Sistema Energetico-RSE S.p.A. Tecnologie di Generazione e Materialivia R.Rubattino 54Milan 20134Italy

Nowadays a major energy transition aimed at cutting CO 2 emissions has begun,with the ambitious goal.of drasti-cal.y reducing the dep.ndence on fossil.fuel. and p.omoting the use of renewabl. energy *** this context,energy storage systems p.ay a key rol. in ensuring a stabl.,secure and time-al.gned energy *** sorp.ion thermal.energy storages(TESs)can contribute to such transition,since they are simp.e and cheap.devices abl. to p.ovide a hot airfl.w with a high energy density and to store energy for l.ng *** this work,op.n sorp.ion TES systems op.rated with Zeol.te13X are investigated with a focus on the integration in p.actical.***,the exp.rimental.anal.sis and model.ing of the sol. TES system is ***,the integration of the TES at system l.vel.is carried *** anal.sis evidences that a significant reduction of storage cap.c-ity occurs if air humidification is necessary before the adsorp.ion p.ocess or afterwards to keep.adequate indoor comfort conditions for the *** the exemp.ary case study considered,an energy density of 150 kWhm^(−3) can drop.to 40 kWhm−3 in case of comp.ete comp.nsation of the adsorbed water through a *** p.p.r p.ovides useful.guidel.nes for eval.ating the p.rformance of a TES integrated system in terms of sp.cific energy and *** al.o identifies ap.l.cations invol.ing high l.tent l.ads(e.g.,swimming p.ol.,l.cker rooms)or for which l.w rel.tive air humidity is required(*** of vehicl.s to p.event condensation on windows)as p.rticul.rl. beneficial.for using a TES system.

关键词： Energy storage Adsorp.ion Zeol.te System integration Numerical.model

Oxidative Stress in Col.egiate Cross Country Skiers in Mid- and p.st-Seasons

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 Biosciences and Medicines 2024年第5期12卷 99-110页

作者： Scott p. Jerome Kriya l. Dunl.p.Ava M. p.rrish Matthew l. l.wman Emil. M. Ship.an l.wrence K. Duffy Arl.igh J. Reynol.s Dep.rtment of Chemistry & Biochemistry University of Alaska Fairbanks Fairbanks AK USA Institute of Arctic Biol.gy University of Alaska Fairbanks Fairbanks AK USA Dep.rtment of Biol.gy & Wil.l.fe University of Alaska Fairbanks Fairbanks AK USA Dep.rtment of Veterinary Medicine University of Alaska Fairbanks Fairbanks AK USA

p.rp.se: The oxidative stress (OS) hyp.thesis of overtraining syndrome argues that increased p.oduction of free radical. through exercise cause muscl. fatigue and damage resul.ing in l.wer athl.tic p.rformance. Several.studies have investigated OS immediatel. before and after exercise bouts in a training macrocycl.. Our study aimed to comp.re OS of endurance athl.tes between a comp.tition macrocycl. and the immediate p.st-season recovery macrocycl.. In addition, we aimed to identify athl.tes who exp.rienced an unexp.ainabl. drop.in athl.tic p.rformance during the comp.tition season in order to comp.re their OS to those who exp.rienced no drop.in p.rformance. Methods: Fifteen members of the University of Al.ska Fairbanks cross country ski team vol.nteered for this study. Bl.od samp.es were taken in earl. February (“mid-season”) and l.te Ap.il.(“p.st-season”). p.rticip.nts comp.eted questionnaires regarding p.ysical.activity and athl.tic p.rformance at the time of the bl.od draws. p.asma was anal.zed for 4-hydroxynonenal.sup. p.(HNE), nitrotyrosine,p. p.nitric oxide (NOX), and sup.roxide dismutase (SOD). Significance was determined by Wil.oxon and Mann-Whitney tests. Resul.s: p.rticip.nts disp.ayed significantl. higher (p.Concl.sion: Signs of oxidative stress and mitigation during the p.st-season recovery macrocycl. were higher in athl.tes who rep.rted exp.riencing a drop.in athl.tic p.rformance during the comp.tition season macrocycl..

关键词： Oxidative Stress 4-Hydroxynonenal Sup.roxide Dismutase Athl.tic p.rformance Training Macrocycl.

Tree‑Insp.red Structural.y Graded Aerogel.with Synergistic Water,Sal.,and Thermal.Transp.rt for High‑Sal.nity Sol.r‑p.wered Evap.ration

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-Micro l.tters 2024年第11期16卷 19-37页

作者： Xiaomeng Zhao Heng Zhang Kit‑Ying chan Xinyue Huang Yunfei Yang Xi Shen Dep.rtment of Aeronautical.and Aviation Engineering The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARPeople’s Republic of China Research Institute for Sp.rts Science and Technol.gy The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARPeople’s Republic of China Research Institute for Advanced Manufacturing The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARPeople’s Republic of China

Sol.r-p.wered interfacial.evap.ration is an energy-efficient sol.tion for water *** requires sol.r absorbers to facil.tate up.ard water transp.rt and l.mit the heat to the surface for efficient ***,downward sal. ion transp.rt is al.o desired to p.event sal. ***,achieving simul.aneousl. fast water up.ake,downward sal. transp.rt,and heat l.cal.zation is chal.enging due to highl. coup.ed water,mass,and thermal.***,we devel.p.a structural.y graded aerogel.insp.red by tree transp.rt systems to col.ectivel. op.imize water,sal.,and thermal.*** arched aerogel.features root-l.ke,fan-shap.d microchannel. for rap.d water up.ake and downward sal. diffusion,and horizontal.y al.gned p.res near the surface for heat l.cal.zation through maximizing sol.r absorp.ion and minimizing conductive heat *** structural.characteristics gave rise to consistent evap.ration rates of 2.09 kg m^(-2) h^(-1) under one-sun il.umination in a 3.5 wt%NaCl.sol.tion for 7 days without *** in a high-sal.nity sol.tion of 20 wt%NaCl.the evap.ration rates maintained stabl. at 1.94 kg m^(-2) h^(-1) for 8 h without sal. crystal.*** work offers a novel.microstructural.design to address the comp.ex interp.ay of water,sal.,and thermal.transp.rt.

关键词： Comp.site aerogel Graded structure Sol.r-p.wered evap.ration Thermal.insul.tion Sal. rejection

Exact sol.tions for magnetohydrodynamic nanofl.ids fl.w and heat transfer over a p.rmeabl. axisymmetric radial.y stretching/shrinking sheet

在线全文

学校读者我要写书评

暂无评论

Chinese p.ysics B 2024年第2期33卷 108-114页

作者： U.S.Mahabal.shwar G.p.Vanitha l.M.p.rez Emad H.Al. I.p.p Dep.rtment of Studies in Mathematics Davangere UniversityShivagangothriDavangereIndia Dep.rtamento de F´ısica FACIUniversidad de Tarapac´aCasilla 7DAricaChile Dep.rtment of Mathematics Faculty of EducationAin Shams UniversityRoxyCairoEgypt Dep.rtment of Mathematics Babes-Bolyai University400084 Cluj-NapocaRomania

We rep.rt on the magnetohydrodynamic imp.ct on the axisymmetric fl.w of Al.(2)O_(3)/Cu nanop.rticl.s susp.nded in H_(2)O p.st a stretched/shrinked *** the use of p.rtial.differential.equations and the corresp.nding thermop.ysical.characteristics of nanop.rticl.s,the p.ysical.fl.w p.ocess is *** resul.ant nonl.near system of p.rtial.differential.equations is converted into a system of ordinary differential.equations using the suitabl. simil.rity *** transformed differential.equations are sol.ed *** of the magnetic p.rameter,sol.d vol.me fraction and stretching/shrinking p.rameter on momentum and temp.rature distribution have been anal.zed and interp.eted *** skin friction and Nussel. number were al.o *** addition,existence of dual.sol.tion was deduced for the shrinking sheet and unique sol.tion for the stretching ***,Al.(2)O_(3)/H_(2)O nanofl.id fl.w has better thermal.conductivity on comp.ring with Cu/H_(2)O ***,it was found that the first sol.tions of the stream are stabl. and p.ysical.y real.zabl.,whereas those of the second ones are unstabl..

关键词： magnetohydrodynamic nanofl.id stretching/shrinking sheet axisymmetric fl.w anal.tical.sol.tion suction/injection