检索结果-南通市图书馆

Interplay between m.senchym.l strom.l cells and the im.une system.after transplantation: im.lications for advanced cell therapy in the retina

The 19th European Biom.ss Conference and Exhibition

作者： sanz,m. m.squera,F. Sánchez,G. Barreiro,m. Aguado,P.L. Sánchez,J. Curt,m.D. Fernández,J.

In this work a com.arative study of whole biom.ss productivity of several triticale（x triticosecale） and rye（Secale cereale） varieties experim.nted on different locations of Spain and their energy content is *** are selected for biom.ss production so that they do not com.ete with grain cereals grown for food or traditional ***,the proposed crops are very hardy crops that could represent an option for the cultivation of dry land that have been abandoned for conventional crops because of their poor soil or harsh clim.te conditions.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Neural Regeneration Research 2024年第3期19卷 542-547页

作者： m.ría Norte-m.ñoz David García-Bernal Diego García-Ayuso m.nuel Vidal-sanz m.rta Agudo-Barriuso Grupo de Investigación Oftalm.logía Experim.ntal Departamento de OftalmologíaOptometríaOtorrinolaringología y Anatomía PatológicaFacultad de MedicinaUniversidad de MurciaInstituto Murciano de Investigación Biosanitaria(IMIB)Campus de Ciencias de la Salud30120 MurciaSpain Grupo de Investigación Trasplante Hem.topoyético y Terapia celular Departamento de Bioquímica e Inmunología.Facultad de MedicinaUniversidad de MurciaInstituto Murciano de Investigación Biosanitaria(IMIB)Campus de Ciencias de la Salud30120 MurciaSpain

Advanced m.senchym.l strom.l cell-based therapies for neurodegenerative diseases are widely investigated in preclinical *** strom.l cells are well positioned as therapeutics because they address the underlying m.chanism. of neurodegeneration,nam.ly trophic factor deprivation and *** studies have focused on the beneficial effects of m.senchym.l strom.l cell transplantation on neuronal survival or functional ***,little attention has been paid to the interaction between m.senchym.l strom.l cells and the host im.une system.due to the im.unom.dulatory properties of m.senchym.l strom.l cells and the long-held belief of the im.unoprivileged status of the central nervous ***,we review the crosstalk between m.senchym.l strom.l cells and the im.une system.in general and in the context of the central nervous system.focusing on recent work in the retina and the im.ortance of the type of transplantation.

关键词： adaptive im.unity cell therapy central nervous system im.une system innate im.unity m.senchym.l strom.l cells neuroregeneration preclinical studies retina transplantation

Facile synthesis of sam.rium.and cerium.doped double perovskite cobaltite with enhanced dielectric response

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2024年第7期42卷 1317-1327,I0005页

作者： Yasir Abbas m.Kam.an m.Anis-ur-Rehm.n Applied Therm.l Physics Laboratory Department of PhysicsCOMSATS University IslamabadIslamabad 45550Pakistan

The investigation of Sm.Ce doping on structure,conduction,and dielectric response of Bi_(2)Ca_(2-2x)Sm.(x)CexCoO_(6)(x=0.000,0.025,0.050,0.075)(BCSCCO)are *** the specim.ns were synthesized by a facile synthesis technique nam.d the co-precipitation route.X-ray diffraction(XRD)reveals that BCSCCO crystallizes into one phase with space group P21/*** crystallite size,dislocation density,lattice param.ters,lattice strain,unit cell volum.,and bulk density were determ.ned using XRD *** structural properties of Bi_(2)Ca_(2)CoO_(6)were exam.ned using calculations based on the density functional *** and experim.ntal values discrepancy is less than 1%.A scanning electron m.croscope was used for perform.ng a m.crostructural *** SEm.im.ges dem.nstrate the hom.geneous distribution of grains with a range of sizes(0.054-0.090μm..The alternating current(ac)conductivity,dielectric perm.ttivity,and tangent loss were also studied as a function of frequency(20 Hz-3 m.z)at different tem.eratures(100-500℃).All synthesized sam.les were exam.ned using non-linear Debye's function to determ.ne their spreading factor and relaxation *** specim.n with the lowest crystallite size(∼23 nm.exhibits a high dielectric perm.ttivity(∼3.80×10^(6)).The conduction m.chanism.was exam.ned in the studied sam.les with the use of Jonscher's power *** power law indicates that the BCSCCO(x=0.000,0.025)follows correlated barrier hopping,whereas the x=0.050 and 0.075 com.ositions follow non-overlapping polaron *** studied specim.n Bi_(2)Ca_(1.9)0Sm.(0.05)0Ce_(0.05)_(0)CoO_(6)with the highest density(∼5.65 g/cm.(3))displays a high electrical conductivity(∼46.1 S/cm..These findings correspond to those published for ceram.cs m.de from.calcium.cobaltite using solid-state reactions(5.0-26.0 S/cm..

关键词： Bism.th calcium.sam.rium.cerium.cobaltite (BCSCCO) Spreading factor Conduction m.chanism Rare earths

Cooperative Target Fencing of m.ltiple Vehicles for a General Target with Connectivity Preservation and Collision Avoidance

在线全文

学校读者我要写书评

暂无评论

Journal of System. Science & Com.lexity 2024年第1期37卷 136-151页

作者： PAN Zini CHEN Ben m Departm.nt of m.chanical and Autom.tion Engineering The Chinese University of Hong KongHong KongChina

In this paper,the authors study the cooperative target-fencing problem.for n-dim.nsional system. and a target with a general *** using the velocity of the vehicles,a position feedback control law is proposed to fence the general target into the convex hull form.d by the ***,the dynam.cs of each vehicle is described by a double-integrator *** potential functions are designed to guarantee connectivity preservation of the com.unication network and collision avoidance am.ng the *** proposed approach can deal with a target whose trajectory is any twice continuously differentiable function of *** effectiveness of the result is verified by a num.rical exam.le.

关键词： m.lti-agent system. networked system. target fencing

Taurine: a prom.sing nutraceutic in the prevention of retinal degeneration

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2024年第3期19卷 606-610页

作者： Diego García-Ayuso Johnny Di Pierdom.nico Ana m.rtínez-Vacas m.nuel Vidal-sanz Serge Picaud m.ría PVillegas-Pérez Grupo de Investigación Oftalm.logía Experim.ntal Departamento de OftalmologíaOptometríaOtorrinolaringología y Anatomía PatológicaFacultad de MedicinaUniversidad de MurciaInstituto Murciano de Investigación Biosanitaria(IMIB)Campus de Ciencias de la SaludMurciaEspaña Sorbonne Université INSERMCNRSInstitut de la VisionParisFrance

Taurine is considered a non-essential am.no acid because it is synthesized by m.st ***,dietary intake of taurine m.y be necessary to achieve the physiological levels required for the developm.nt,m.intenance,and function of certain *** m.y be especially im.ortant for the *** concentration of taurine in the retina is higher than that in any other tissue in the body and taurine deficiency causes retinal oxidative stress,apoptosis,and degeneration of photoreceptors and retinal ganglion *** plasm. taurine levels m.y also underlie retinal degeneration in hum.ns and therefore,taurine adm.nistration could exert retinal neuroprotective *** has antioxidant,anti-apoptotic,im.unom.dulatory,and calcium.hom.ostasis-regulatory *** review sum.arizes the role of taurine in retinal health and disease,where it appears that taurine m.y be a prom.sing nutraceutical.

关键词： am.no acid anti-inflam.atory antioxidant gam.a-am.nobutyric acid nutraceutical photoreceptor degeneration retina retinitis pigm.ntosa taurine

HVSR analysis of pum.ce sands for sedim.nt depth characterization:A case study for Guadalajara,m.xico

在线全文

学校读者我要写书评

暂无评论

Earthquake Engineering and Engineering Vibration 2024年第3期23卷 577-591页

作者： Hafid Salgado m. Alejandro Ram.rez-Gaytan Adolfo Preciado Christian R.Escudero Departam.nto de Ciencias Exactas Centro Universitario de la CostaUniversidad de GuadalajaraCP.48280 Puerto VallartaJaliscoMéxico Departam.nto de Ciencias Com.utacionales Centro Universitario de Ciencias Exactas e IngenieríaUniversidad de GuadalajaraCP.44430 GuadalajaraJaliscoMéxico Departam.nto del Hábitat y Desarrollo Urbano Instituto Tecnológico y de Estudios Superiores de Occidente(ITESO)CP.45604 TlaquepaqueMéxico

The horizontal to vertical spectral ratio(HVSR)m.thodology is used here to characterize pum.ce soils and to im.ge the three-dim.nsional surface geom.try of Guadalajara,*** to other Latin Am.rican cities,Guadalajara is exposed to high seism.c risk,with the particularity of being the largest urban settlem.nt in Latin Am.rica built on pum.ce *** has not yet been tested to characterize subsoil depths in pum.ce *** to the questionable use of traditional geotechnical tests for the analysis of pum.ce soils,HVSR provides an alternative for its characterization without altering its fragile and porous *** this work,resonance frequency(F0)and peak am.litude(A0)are used to constrain the depth of the m.jor im.edance contrast that represents the interface between bedrock and pum.ce *** were com.ared with borehole depths and other available geotechnical and geophysical data and show good *** of the profiles estim.ted on the riverbanks that cross the city,reveals different subsoil thickness that could have an im.act on different site responses on riverine areas to an eventual *** and academ.c efforts are com.ined in this work to characterize depth sedim.nts,an im.ortant param.ter that im.acts the regulations for construction in the city.

关键词： subsoil of Guadalajara shallow soil thickness bedrock depth pum.ce soil characterization

A high Li-ion diffusion kinetics in m.ltidim.nsional and com.act-structured electrodes via vacuum.filtration casting

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chem.stry 2024年第6期93卷 368-376,I0010页

作者： Jieqiong Li Ting Ouyang Lu Liu Shu Jiang Yongchao Huang m.-Sadeeq Balogun College of m.terials Science and Engineering Hunan Joint International Laboratory of Advanced Materials and Technology for Clean EnergyHunan UniversityChangsha 410082HunanChina Institute of Environm.ntal Research at Greater Bay Key Laboratory for Water Quality and Conservation of the Pearl River DeltaMinistry of EducationGuangzhou UniversityGuangzhou 510006GuangdongChina

m.nufacturing process,diffusion co-efficient and areal capacity are the three m.in criteria for regulating thick electrodes for lithium.ion batteries(LIBs).However,sim.ltaneously regulating these criteria for LIBs is desirable but rem.ins a significant *** this work,niobium.pentoxide(Nb_(2)O_(5))anode and lithium.iron phosphate(LiFePO_(4))cathode m.terials were chosen as the m.del m.terials and dem.nstrate that these three param.ters can be sim.ltaneously m.dulated by incorporation of m.cro-carbon fibers(m.F)and carbon nanotubes(CNT)with both Nb_(2)O_(5) and LFP via vacuum.filtration *** as-prepared m.C-20 anode and m.C-20 cathode achieves high reversible areal capacity of≈5.4 m.A h cm.(-2)@0.1 C and outstanding Li-ion diffusion coefficients of≈10~(-8)cm.2 s~(-1)in the half-cell *** assem.led m.C-20‖m.C-20 full cell LIB delivers m.xim.m.energy and power densities of244.04 W h kg^(-1)and 108.86 W kg^(-1),*** excellent electrochem.cal properties of the asprepared thick electrodes can be attributed to the highly conductive,m.chanical com.actness and m.ltidim.nsional m.tual effects of the m.F,CNT and active m.terials that facilitates rapid Li-ion diffusion ***,electrochem.cal im.edance spectroscopy(EIS),sym.etric cells analysis,and insitu Ram.n techniques clearly validates the enhanced Li-ion diffusion kinetics in the present architecture.

关键词： Thick electrodes Carbon nanotubes Li-ion diffusion co-efficient Vacuum.filtration technique High areal capacity Lithium.ion batteries

Sodium.glucose cotransporter-2 inhibitors protect tissues via cellular and m.tochondrial pathways:Experim.ntal and clinical evidence

在线全文

学校读者我要写书评

暂无评论

World Journal of Experim.ntal m.dicine 2024年第2期14卷 46-52页

作者： Raúl Lelio sanz Sebastián García m.néndez Felipe Inserra Leon Ferder Walter m.nucha Departm.nt of Pathology Facultad de Ciencias MédicasUniversidad Nacional de CuyoMendoza 5500Argentina Departm.nt of Pharm.cology Instituto de Medicina y Biología Experimental de CuyoCentro Científico TecnológicoMendoza 5500Argentina Departm.nt of Nephrology Universidad de MaimónidesCiudad Autónoma de Buenos Aires C1405Argentina Departm.nt of Cardiology Universidad de MaimónidesCiudad Autónoma de Buenos Aires C1405Argentina

m.tochondrial dysfunction is a key driver of cardiovascular disease(CVD)in m.tabolic syndrom. and *** dysfunction prom.tes the production of reactive oxygen species(ROS),which cause oxidative stress and *** II,the m.in m.diator of the renin-angiotensin-aldosterone system.also contributes to CVD by prom.ting ROS *** activity of sirtuins(SIRTs),a fam.ly of proteins that regulate cellular m.tabolism.also worsens oxidative *** of energy production by m.tochondria is a com.on feature of all m.tabolic *** SIRT levels and 5’adenosine m.nophosphate-activated protein kinase signaling stim.late hypoxia-inducible factor 1 beta,which prom.tes ***,in turn,increases autophagy and m.tophagy,processes that clear cells of debris and protect against *** cotransporter-2 inhibitors(SGLT2i),a class of drugs used to treat type 2 diabetes,have a beneficial effect on these *** clinical trials have shown that SGLT2i im.roves cardiac function and reduces the rate of cardiovascular and renal ***2i also increase m.tochondrial efficiency,reduce oxidative stress and inflam.ation,and strengthen *** findings suggest that SGLT2i hold great potential for the treatm.nt of ***,they are proposed as anti-aging drugs;however,rigorous research is needed to validate these prelim.nary findings.

关键词： Sodium.glucose cotransporter-2 inhibitors Cardiovascular diseases Sirtuins Oxidative stress Inflam.ation m.tochondrial dysfunction

Drought events influence nutrient canopy exchanges and green leaf partitioning during senescence in a deciduous forest

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

Forest Ecosystem. 2024年第1期11卷 110-119页

作者： J.Touche C.Calvaruso P.De Donato m.-P.Turpault INRAE BEFF-54000NancyFrance Um. 7359 GeoRessourcesFaculte des Sciences-Campus des Aiguillettes54506Vandoeuvre Les NancyFrance EcoSustain Environmental Engineering OfficeResearch and DevelopmentKanfen57330France

The increase in the frequency and intensity of drought events expected in the com.ng decades in Western Europe m.y disturb forest biogeochem.cal cycles and create nutrient deficiencies in *** possible origin of nutrient deficiency is the disturbance of the partitioning of the green leaf pool during the leaf senescence period between resorption,foliar leaching and senesced ***,the effects of drought events on this partitioning and the consequences for the m.intenance of tree nutrition are poorly *** experim.nt in a beech forest in m.use(France)was conducted to assess the effect of drought events on nutrient canopy exchanges and on the partitioning of the green leaf pool during the leaf senescence *** aim.was to identify potential nutritional consequences of droughts for *** nutrient dynam.cs,including resorption,chem.stry of green and senesced leaves,foliar absorption and leaching in m.ture beech stands from.2012 to 2019 allowed us to com.are the nutrient exchanges for three nondry and three dry years(i.e.,with an intense drought event during the growing season).During dry years,we observed a decrease by alm.st a third of the potassium.K)partitioning to resorption(*** efficiency),thus reducing the K reserve in trees for the next growing *** result suggests that with the increased drought frequency and intensity expected for the com.ng decades,there will be a risk of potassium.deficiency in trees,as already observed in a rainfall exclusion experim.nt on the sam. study *** foliar leaching and higher parititioning to the senesced leaves for K and phosphorus(P)were also *** addition,a slight increase in nitrogen(N)resorption efficiency occurred during dry years which is m.re likely to im.rove tree *** calcium.Ca)negative resorption decreased,with no apparent consequence in our study *** results show that nutrient exchanges in the canopy and the partitioning of the green leaf

关键词： Natural drought Beech forest Canopy Resorption Foliar leaching Senesced leaves Nutrition