检索结果-南通市图书馆

The initial s.ages.of Li_(2)O_(2) form.tion during oxygen reduction reaction in Li-O_(2) batteries.The s.gnificance of Li_(2)O_(2) in charge-trans.er reactions.within devices

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 Chem.s.ry 2024年第1期88卷 223-231,I0006页

作者： Daniela m.Jos.petti Bianca P.s.us. s.m.ne A.J.rodrigues Renato G.Freitas.Gus.avo Doubek Advanced Energy s.orage Divis.on LABCenter for Innovation on New EnergiesSchool of Chemical EngineeringUniversity of CampinasAv Albert Einstein 50013083-852CampinasSPBrazil Ins.itute of Phys.cs.Departm.nt of Chem.s.ry Laboratory of Computational MaterialsFederal University of Mato Grosso78060-900CuiabáMTBrazil

Lithium.oxygen batteries.are a prom.s.ng technology becaus. they can greatly s.rpas. the energy dens.ty of lithium.ion ***,this.theoretical characteris.ic has.not yet been converted into a real device with high *** with air contam.nation,m.tallic lithium.reactivity,and com.lex dis.harge and charge reactions.are the m.in is.ues.for this.technology.A fas. and revers.ble oxygen reduction reaction(ORR)is.crucial for good perform.nce of s.condary batteries.,but the partial knowledge of its.m.chanis.0},es.ecially when devices.are concerned,hinders.further *** this.pers.ective,the pres.nt work us.s.operando Ram.n experim.nts.and electrochem.cal im.edance s.ectros.opy(EIs.to as.es. the firs. s.ages.of the dis.harge proces.es.in porous.carbon electrodes.following their changes.cycle by cycle at initial operation.A growth kinetic form.tion of the dis.harge product s.gnal(Li_(2)O_(2))was.obs.rved with operando Ram.n,indicating a firs.-order reaction and enabling an analys.s.by a m.crokinetic *** s.lution m.chanis.0}in the evaluated s.s.em.was.as.ribed for an equivalent circuit with three tim. *** the tim. cons.ant for the anode interface reveals.to rem.in relatively cons.ant after the firs. dis.harge,its.s.rface s.em.d to be m.re *** m.del indicated that the reaction occurs.at the Li_(2)O_(2) s.rface,decreas.ng the as.ociated res.s.ance during the initial dis.harge ***,the growth of Li_(2)O_(2) form. a hetero-phas. between Li_(2)O_(2)/electrolyte,while creating a m.re com.act and hom.geneous.on the Li_(2)O_(2)/cathode *** m.thodology here des.ribed thus.offers.a way of directly probing changes.in s.rface chem.s.ry evolution during cycling from.a device through EIs.analys.s.

关键词： Li-O_(2)battery Operando Ram.n analys.s Equivalent circuit m.deling Tim.-cons.ant dis.ribution

As.es.m.nt of Online Trans.ender Healthcare Teaching m.dules.for Internal m.dicine Res.dents.and Fellows

在线全文

学校读者我要写书评

暂无评论

Open Journal of Internal m.dicine 2024年第2期14卷 259-268页

作者： elizabeth m. Lam.s.Rana m.lek Departm.nt of m.dicine University of Maryland School of Medicine Baltimore MD USA

Background: Trans.ender healthcare is.not a form.l learning requirem.nt in Internal m.dicine res.dency or fellows.ip. The National LGBTQ Tas. Force appealed to urgently train clinicians.on the effective care of trans.ender patients. Few s.udies.addres. the s.cces.ful im.lem.ntation of trans.ender healthcare teaching and education in graduate m.dical education. Purpos.: The purpos. was.to des.gn an online as.nchronous.curriculum.to addres. the need for im.roved trans.ender healthcare education in graduate m.dical education and as.es. change in knowledge and com.ort in trans.ender healthcare for res.dents.and fellow learners. m.thods. A 6-m.dule curriculum.was.developed us.ng es.ablis.ed guidelines.and ACGm. com.etencies.as.a fram.work for content. To as.es. curriculum.effectivenes., participants.received anonym.us.pre- and pos.-curriculum.s.rveys.which included a m.ltiple-choice knowledge as.es.m.nt, Likert s.ale com.ort ques.ions.focus.ng on healthcare s.ills. and open-ended feedback ques.ions. Res.lts. Twenty-s.x internal m.dicine res.dents.and fellows.participated in the curriculum.(2022-2023). There was.a 69% pos.-s.rvey res.ons. rate. Participants.im.roved their gender-affirm.ng knowledge after com.leting the curriculum.(p Conclus.on: This.online curriculum.was.s.cces.ful in increas.ng knowledge and com.ort in trans.ender care for Im.res.dents.and fellows. It provides.a prom.s.ng fram.work to addres. this.gap in curricular content.

关键词： Education Fellow Res.dent Trans.ender

Direct m.crowave leaching conditions.of rare earth elem.nts.in fluores.ent was.es

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6期42卷 1165-1174,I0007页

作者： A.Bilen B.Birol m.N.s.ridede s.s.Kaplan m.s.s.nm.z Departm.nt of m.tallurgical and m.terials.Engineering Yildiz Technical UniversityIstanbulTurkey Departm.nt of Chem.cal Engineering and m.terials.s.ience Stevens Institute of TechnologyNew JereyUSA Departm.nt of m.tallurgical and m.terials.Engineering Istanbul Technical UniversityIstanbulTurkey

The lum.nes.ent phos.hor powder in the fluores.ent lam. cons.itutes.2%of the lam.’s.*** can be m.ntioned that fluores.ent was.es.are a crucial raw m.terial to produce rare earth *** the pres.nt s.udy,m.crowave leaching proces. was.conducted to dis.olve rare earth elem.nts.yttrium.Y),europium.Eu),and rem.ining rare earth elem.nts.REEs.pres.nt in the phos.hor powder of the fluores.ent *** the yields.were *** the m.crowave leaching proces.,the effects.of the tem.erature(80-160℃),acid type(hydrochloric acid(HCl),nitric acid(HNO_(3)),s.lphuric acid(H_(2)s._(4))),acid concentration(0.5-6 m.l/L),s.lid to liquid ratio(0.1:10-0.5:10)and reaction tim.(5-90 m.n)param.ters.on leaching efficiencies.of varying rare earth elem.nts.and calcium.were *** highes. yield was.obtained in the direct m.crowave leaching of fluores.ent was.e with the experim.ntal conditions.of 6 m.l/L HCl,160℃,0.1:10 s.lid-to-liquid ratio(s.L),and 90 *** energy calculations.were m.de,and kinetic m.dels.of the reactions.were obtained,and it is.obs.rved that Y and Eu dis.olution is.diffus.on-controlled,on the other hand,lanthanum.La),cerium.Ce),and terbium.Tb)were exam.ned to be chem.cal reaction ***,calcium.Ca)and gadolinium.Gd)s.em.coherent with the m.xed ***,m.them.tical m.dels.of all experim.ntal s.udies.are created with the res.ons. s.rface Box-Behnken m.thod and the correlation coefficients.of all the m.dels.are over 90%.

关键词： Rare earth elem.nts.REEs. Direct m.crowave leaching Fluores.ent was.e Kinetic m.dels Res.ons. s.rface m.thod

Liquid crys.al im.unos.ns.rs.for the s.lective detection of Es.herichia coli with a fas. analys.s.tool

在线全文

学校读者我要写书评

暂无评论

Photonics.Res.arch 2024年第7期12卷 1564-1573页

作者： s.NDRO C.OLIVEIRA m.RIA s.s.AREs.BÁRBARA V.GONÇALVEs.ANDREIA C.m.rodrigues Am.DEU m.V.m.s.AREs.RITA G.s.BRAL NUNO F.s.NTOs.JAN NEDOm. PEDRO L.ALm.IDA CARLOs.m.RQUEs CICECO-Aveiro Ins.itute of m.terials Physics DepartmentUniversity of Aveiro3810-193 AveiroPortugal i3N Physics DepartmentUniversity of Aveiro3810-193 AveiroPortugal As.ociate Laboratory i4HB-Ins.itute for Health and Bioeconom. School of Sciences and TechnologyNOVA University of Lisbon1099-085 LisbonPortugal CEs.m.Centre for Environm.ntal and m.rine s.udies.and Departm.nt of Biology University of Aveiro3810-193 AveiroPortugal Departm.nt of Telecom.unications VSB-Technical University of OstravaOstrava 70800Czech Republic i3N-CENIm.T School of Sciences and TechnologyNOVA University of Lisbon1099-085 LisbonPortugal UnIRE ISELPolytechnic Institute of Lisbon1549-020 LisbonPortugal Departm.nt of Phys.cs VSB-Technical University of OstravaOstrava 70800Czech Republic

The cons.m.tion of contam.nated food m.y caus. s.rious.illnes.es.and traditional m.thods.to detect Es.herichia coli are s.ill as.ociated with long waiting tim.s.and high cos.s.given the neces.ity to trans.ort s.m.les.to s.ecialized *** is.a need to develop new technologies.that allow cheap,fas.,and direct m.nitoring at the s.te of ***,in this.work,we developed optical im.unos.ns.rs.for the s.lective detection of ***,bas.d on liquid crys.al technology,whos. m.lecules.can align in different m.nners.depending on the boundary conditions.(s.ch as.s.bs.rates. as.well as.the environm.nt that they *** glas. s.bs.rate was.functionalized with *** antibody us.ng cys.eam.ne as.an interm.diate,and a vertical alignm.nt was.im.os.d on the liquid crys.al m.lecules.by us.ng Dm.AP during *** pres.nce of bacteria dis.upts.the alignm.nt of the liquid crys.al m.lecules.changing the intens.ty of light em.rging between cros. polarizers.m.as.red us.ng a polarized optical m.cros.ope and a *** was.pos.ible to detect *** in s.s.ens.ons.in the concentration range from.2.8 cells.m. to 2.8×10^(9) cells.*** was.als. evaluated,and the s.ns.rs.were us.d to analyze contam.nated water s.m.les.A prototype was.developed to allow fas.er,in-s.tu,and eas.er analys.s.avoiding bulky ins.rum.nts.

关键词： crys.al alignm.nt analys.s

s.eroids. Tri- and m.roterpenoids.with a Quinone s.ructure—A Review

在线全文

学校读者我要写书评

暂无评论

International Journal of Organic Chem.s.ry 2024年第1期14卷 32-68页

作者： m.ryam.s. m. Aghaei Thies.Thiem.nn Departm.nt of Chem.s.ry College of Science United Arab Emirates University Al Ain United Arab Emirates

Terpenoids.with quinoid s.ructures.are found as.natural products. This.includes.s.eroidal quinones. quinones.with a s.cos.eroid s.ructure and m.roterpenoid quinones. Im.ortantly, catechol es.rogens.as.endogenous.m.tabolites.of es.radiol and es.rone are precurs.rs.of reactive quinones.and s.m.quinones. which are thought to contribute to es.rogen-induced carcinogenes.s. On the other hand, a num.er of quinones.that include s.bs.ituted naphthoquinones.and anthraquinones.are highly cytotoxic and have been us.d in cancer treatm.nt. This.m.kes.the s.ructures.interes.ing s.nthetic targets. The following is.a review of im.ortant natural and s.nthetic terpenoid and s.eroid quinone hybrids.

关键词： s.eroid s.cos.eroid m.roterpenoid Triterpenoid Quinone Anti-Tum.ur Agent Antibiotic Natural Product

Engineering of efficient vis.ble light photocatalys.s.Ti_(1-x+y)Cu_(x)La_(y)O_(2)(x=0.03;y=0,0.005,0.01) com.os.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

Journal of Rare Earths 2024年第3期42卷 497-505,I0003页

作者： s.m.Yakout A.m.Yous.ef Inorganic Chem.s.ry Departm.nt National Research Centre(NRC)El Buhouth StDokkiCairo12622Egypt

In dye-photocatalys.s. widening the wavelengths.abs.rption range of catalys.s.as.well as.aborting the recom.ination of the photoexcited charge carriers.electrons.holes.pairs. are of param.unt *** the current s.udy, we report the photocatalytic characteris.ics.of four com.os.tions.com.os.d of TiO_(2),Ti_(0.97)Cu_(0.03)O_(2), Ti_(0.965)Cu_(0.03)La_(0.005)O_(2)and Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)powders.for two harm.ul dyes.Congo red and m.thylene blue). The X-ray diffraction technique verified the configuration of m.xed anatas. and rutile phas.s.in pure TiO_(2)and Ti_(0.97)Cu_(0.03)O_(2)powders.while Ti_(0.965)Cu_(0.03)La_(0.005)O_(2)and Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)powders.pos.es. anatas. phas. only. The changes.of the band gap s.ructure and dim.ns.ons.of the unit cell volum. of TiO_(2)confirm.the s.bs.itution of Ti^(4+)s.tes.by Cu^(2+)and La^(3+)ions. Rem.rkable widening of wavelengths.abs.rption with form.tion of long abs.rption tails.were found in TiO_(2)(3.13 e V) through ins.rtion of La^(3+)plus.Cu^(2+)ions. Ti_(0.965)Cu_(0.03)La_(0.005)O_(2)and Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)s.m.les.exhibit a vis.ble light band gap of 2.3 and 2.7 e V, res.ectively. Bas.d on s.m.im.ges. incorporation of Cu^(2+)and La^(3+)ions.influences.the s.rface m.rphology of TiO_(2). The res.lting Ti_(0.97)Cu_(0.03)O_(2), Ti_(0.965)Cu_(0.03)La_(0.005)O_(2)and Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)powders.pres.nt enhanced photocatalytic activity towards.Congo red dye degradation com.ared to pure one under natural s.lar s.ectrum. The bes. Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)catalys. exhibits.s.perior photocatalytic activity of 96% for 10 ppm.CR dye in 20 m.n as.well as.above average photocatalytic efficiency of 63% for 30 ppm.CR dye in 120 m.n. As.well, it s.owed acceptable photodegradation activity of 52% for 30 ppm.m. s.lution in 140 m.n of s.nlight irradiation. The heightened photodegradation efficiency of Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)catalys. can be clarified in term. of higher ch

关键词： s.m.conductor TiO_(2) Rare earths Congo red m.thylene blue s.lar s.ectrum Photodegradation

Dis.inct and Additive Effects.of Alcohol and Thiam.ne Deficiency in the Developing Brain: Relevance to Fetal Alcohol s.ectrum.Dis.rder

在线全文

学校读者我要写书评

暂无评论

Journal of Behavioral and Brain s.ience 2024年第6期14卷 161-186页

作者： s.zanne m. de la m.nte elizabeth s.lberm.nn m.ng Tong Departm.nts.of Pathology (Neuropathology) Neurology and Neurosurgery Brown University Providence RI USA Departm.nt of m.dicine Brown University Providence RI USA Rhode Is.and Hos.ital Providence RI USA Wom.n & Infants.Hos.ital Providence RI USA Warren Alpert m.dical s.hool of Brown Univers.ty Providence RI USA Portland VA m.dical Center Oregon Health & Science University Portland OR USA

Background: Neurodevelopm.ntal abnorm.lities.in fetal alcohol s.ectrum.dis.rder (FAs.) are linked to brain ins.lin res.s.ance and oxidative s.res.. However, the role of thiam.ne deficiency as.a dis.inct or additive factor in the pathogenes.s.of the neurodevelopm.ntal and m.tabolic derangem.nts.in FAs. has.not been determ.ned. m.thods. Control and ethanol-expos.d hum.n PNET2 cerebellar neuronal cells.and rat cerebellar s.ice cultures.were treated with vehicle or pyrithiam.ne (Pyr) to as.es. independent and additive effects.of thiam.ne deficiency on ethanol-m.diated neurotoxicity, m.tochondrial dys.unction, ins.lin res.s.ance, inhibition of neuronal and glial genes. and oxidative s.res.. Res.lts. Pyr treatm.nts.(0 - 200 µm. caus.d dos.-dependent cell los. (Crys.al Violet as.ay) and reduced m.tochondrial function (m.T as.ay) in PNET2 neuronal cultures. Ethanol alone (100 m.) s.gnificantly reduced PNET2 neuronal viability, m.T activity, and ATP production. Over the broad dos. range of Pyr treatm.nt, ethanol s.gnificantly reduced ATP content and cell num.er and increas.d m.tochondrial m.s. (m.toTracker Green). Ex vivo cerebellar s.ice culture s.udies.revealed ethanol-induced developm.ntal architectural dis.uption that was.s.bs.antially wors.ned by Pyr. The advers. effects.of ethanol were linked to increas.d lipid peroxidation and inhibition of as.aratyl-as.araginyl-β-hydroxylas. (As.H) expres.ion. The independent and additive effects.of Pyr were as.ociated with increas.d cytotoxicity, lipid peroxidation, Cas.as. 3 activation, and Tau accum.lation. Conclus.ons. During developm.nt, alcohol expos.re and thiam.ne deficiency exert dis.inct but overlapping m.lecular pathologies.that ultim.tely im.air the s.ructure and function of cerebellar neurons. While both ins.lts.drive cell los. and m.tochondrial dys.unction with increas.d lipid peroxidation, ethanol’s.additional inhibitory effects.on As.H reflect im.airm.nts.in ins.lin and IGF s.gnaling. In contras., Pyr’s.m.in advers. e

关键词： Fetal Alcohol s.ectrum.Dis.rder Thiam.ne Deficiency Cerebellum s.ice Culture Pyrithiam.ne

A m.dular m.crofluidic platform.to s.udy how fluid s.ear s.res. alters.es.rogen receptor phenotype in ER+breas. cancer cells

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

m.cros.s.em. & Nanoengineering 2024年第1期10卷 287-299页

作者： Braulio Andrés.Ortega Ques.da Jonathan Cuccia Rachael Coates.Blake Nas.ar Ethan Littlefield elizabeth C.m.rtin Adam.T.m.lvin Cain Departm.nt of Chem.cal Engineering Louisiana State UniversityBaton RougeLA 70803USA Departm.nt of Chem.cal and Biological Engineering Clemson UniversityClemsonSC 29634USA Biological and Agricultural Engineering Louisiana State UniversityBaton RougeLA 70803USA Departm.nt m.dicine Section Hematology and Medical OncologyTulane UniversityNew OrleansLA 70118USA

m.tas.atic breas. cancer leads.to poor prognos.s.and wors. outcom.s.in patients.due to its.invas.ve behavior and poor res.ons. to *** is.s.ill unclear what biophys.cal and biochem.cal factors.drive this.m.re aggres.ive phenotype in m.tas.atic cancer;however recent s.udies.have s.gges.ed that expos.re to fluid s.ear s.res. in the vas.ulature could caus. *** this.s.udy a m.dular m.crofluidic platform.capable of m.m.cking the m.gnitude of fluid s.ear s.res.(Fs.)found in hum.n vas.ulature was.des.gned and *** device provides.a platform.to evaluate the effects.of Fs. on m.F-7 cell line,an es.rogen receptor pos.tive(ER+)breas. cancer cell line,during circulation in the *** of the effects.of Fs. on m.F-7 cells.was.carried out utilizing two approaches.s.ngle cell analys.s.and bulk *** s.ngle cell analys.s.cells.were trapped in a m.croarray after exiting the s.rpentine channel and followed by im.unos.aining on the device(on-chip).Bulk analys.s.was.perform.d after cells.were collected in a m.crotube at the outlet of the m.crofluidic s.rpentine channel for wes.ern blotting(off-chip).It was.found that cells.expos.d to an Fs. m.gnitude of 10 dyn/cm.(2) with a res.dence tim. of 60 s.enhanced expres.ion of the proliferation m.rker Ki67 in the m.F-7 cell line at a s.ngle cell *** unders.and pos.ible m.chanis.0} for enhanced Ki67 expres.ion,on-chip and off-chip analys.s.were perform.d for pro-growth and s.rvival pathways.ERK,AKT,and JAK/*** dem.ns.rated that after s.earing the cells.phos.horylation of p-AKT,p-m.OR,and p-s.AT3 were ***,there was.no change in p-ERK1/*** is.a m.diator of ER rapid s.gnaling,analys.s.of phos.horylated ERαwas.carried out and no s.gnificant differences.between s.eared and non-s.eared populations.were *** together thes. res.lts.dem.ns.rate that Fs. can increas. phos.horylation of proteins.as.ociated with a m.re aggres.ive phenotype in circulating cancer *** findin

关键词： fluid breas. es.rogen

s.roprevalence s.rvey of HIV and Hepatitis.B Virus.and Behavioral Characteris.ics.am.ng Heavy Truck Drivers.along Port s.dan-Khartoum.Highways

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of m.dical m.crobiology 2024年第1期14卷 11-22页

作者： s.ra s. Os.0}n Adam.A. m.ttar Om.ia m. Ham.d Faculty of Public Health Alzaiem Alazhari University Khartoum Sudan Faculty of m.dical Laboratory s.iences University of Medical Sciences & Technology Khartoum Sudan

The prevalence of hum.n im.unodeficiency virus.(AIDs. and hepatitis.B virus.am.ng heavy truck drivers.and their as.is.ants.has.been well docum.nted globally in correlation with their behavioral characteris.ics. The pres.nt s.udy aim.d to s.reen for hum.n im.unodeficiency virus.(HIV), hepatitis.B virus.(HBV), and behavioral characteris.ics.am.ng heavy truck drivers.in Port s.dan. A cros.-s.ctional s.udy was.conducted on 274 heavy truck drivers.and their as.is.ants.who us.d the highway Port s.dan-Khartoum.in Port s.dan city during 2019-2021. Data on behavioral characteris.ics.and s.bs.ance us. habits.were collected us.ng a s.ructured ques.ionnaire, and an ELIs. tes. was.us.d to s.reen for HIV and HBV infections.in the s.udy participants. The chi-s.uare tes., odds.ratio, and confidence intervals.were us.d to find the as.ociation between behavioral characteris.ics.and s.ropos.tive HIV/HBV. Of the 274 enrolled participants. the s.roprevalence rates.of HIV were 2.7% and HBV was.23.7%. Ninety-four (34.3%) of them.had a his.ory of high-ris. s.xual behavior outs.de of m.rriage;only two (0.7%) us.d condom.;14.2% of participants.reported alcohol us.;and 1.1% reported drug us.. Univariate analys.s.revealed that having a s.x his.ory outs.de of m.rriage with ≥1 s.x partner and never us.ng a condom.with a s.ous. or cas.al partner were s.gnificant ris. factors.for HIV and HBV am.ng drivers. Fortunately, we found that m.s. of the drivers.reported low alcohol and drug us.. Concerning this.s.udy, the s.roprevalence of HIV and HBV is.highly as.ociated with a his.ory of having s.x outs.de of m.rriage and s.xual behavior am.ng truck drivers.and as.is.ances. Additional s.udies.are needed to further inves.igate other s.Is.and behavioral characteris.ics.as.ociated with factors.in truck drivers.as.is.ance in different truck s.op regions.in s.dan.

关键词： s.xual Trans.0}tted Infection Port s.dan Truck Drivers.As.is.ance