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Ads.rption of yttrium(Y^(3+)) and concentration of rare earth elements.from phos.hogyps.m us.ng chitin and chitin aerogel

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Journal of Rare Earths 2024年第4期42卷 775-782页

作者： Glayds.n s.dos.Reis.Diana Pinto s.brina F.Lütke Eder C.Lima Luis.F.O.s.lva Irineu A.s.De Brum guilherme L.Dotto Department of Fores. Biomaterials.and Technology Biomas. Technology Centre Swedish University of Agricultural SciencesUmeaE13Swedn Univers.dad De La Cos.a Calle 58#55-66080002BarranquillaAtlanticoColombia Res.arch Group on Ads.rptive and Catalytic Proces. Engineering(ENGEPAC) Federal University of Santa MariaAv.Roraima100079705900Santa MariaRSBrazil Ins.itute of Chemis.ry Federal University of Rio Grande do Sul90040060Porto AlegreBrazil

Chitin powder and chitin-aerogel were prepared from s.rimp was.es.and us.d to uptake Y^(3+)from aqueous.s.lutions.and concentrate this.rare earth element from phos.hogyps.m(PG).Chitin aerogel dis.lays.a s.ecific s.rface area of 945 m^(2)/g,while chitin powder is.3.6 m^(2)/g,which largely influences.its.ads.rption *** the ads.rption in s.nthetic s.lutions.the effect of pH on Y^(3+)removal is.s.rong for chitin powder *** contras.,no big pH influence was.detected for chitin *** interactions.and chelation can highlight the propos.d mechanis. of Y^(3+)on chitin ads.rbents.for the powder and ***,in addition to thes. interactions.pore filling/pore diffus.on is.the main mechanis. of Y^(3+)removal in the chitin *** aerogel is.efficient in concentrating 8 times.the Y^(3+)from PG,a very complex *** complex chitin aerogel-Y^(3+)can be a s.condary s.urce of rare earth elements.for other applications.

关键词： Rare earths s.s.ainable material Chitin powder Chitin porous.aerogel Yttrium ads.rption and recovery

Tribologically induced nanos.ructural evolution of carbon materials. A new pers.ective

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Friction 2024年第1期12卷 144-163页

作者： guilherme Oliveira NEVEs.Nicolás.ARAYA Diego Berti s.LVARO Thiago de s.uza LAMIM Renan Os. GIACOMELLI Cris.iano BINDER Alois.o Nelmo KLEIN Jos.Daniel Bias.li de MELLO Laboratório de Materiais Universidade Federal de Santa CatarinaSanta Catarina 88040-900Brazil Departamento de Ingeniería Mecánica Facultad de IngenieríaUniversidad del Bío-BíoConcepcion 4070-386Chile Univers.dad de Concepción Concepcion 4070-386Chile s.NAI Innovation Ins.itute for Las.r Proces.ing Santa Catarina 89218-153Brazil Univers.dade Federal de Uberlândia Minas Gerais 38408-100Brazil

Carbon-bas.d s.lid lubricants.are excellent options.to reduce friction and wear,es.ecially with the carbon capability to adopt different allotropes.*** the macros.ale,thes. materials.are s.eared on the contact along with debris.and contaminants.to form tribolayers.that govern the tribos.s.em *** a recently developed advanced Raman analys.s.on the tribolayers.it was.pos.ible to quantify the contactinduced defects.in the crys.alline s.ructure of a wide range of allotropes.of carbon-bas.d s.lid lubricants.from graphite and carbide-derived carbon particles.to multi-layer graphene and carbon *** addition,thes. materials.were tes.ed under various.dry s.iding conditions.with different geometries.topographies.and s.lid-lubricant application *** of the initial tribos.s.em conditions.and allotrope level of atomic ordering,there is.a remarkable trend of increas.ng the point and line defects.dens.ty until a s.ecific s.turation limit in the s.me order of magnitude for all the materials.tes.ed.

关键词： carbon nanos.ructures tribology Raman s.ectros.opy defects.quantification tribolayer s.lid lubrication

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

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Journal of Energy Chemis.ry 2024年第1期88卷 223-231,I0006页

作者： Daniela M.Jos.petti Bianca P.s.us. s.mone 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.Department of Chemis.ry Laboratory of Computational MaterialsFederal University of Mato Grosso78060-900CuiabáMTBrazil

Lithium-oxygen batteries.are a promis.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 contamination,metallic lithium reactivity,and complex dis.harge and charge reactions.are the main is.ues.for this.technology.A fas. and revers.ble oxygen reduction reaction(ORR)is.crucial for good performance of s.condary batteries.,but the partial knowledge of its.mechanis.s.es.ecially when devices.are concerned,hinders.further *** this.pers.ective,the pres.nt work us.s.operando Raman experiments.and electrochemical impedance 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 formation of the dis.harge product s.gnal(Li_(2)O_(2))was.obs.rved with operando Raman,indicating a firs.-order reaction and enabling an analys.s.by a microkinetic *** s.lution mechanis. in the evaluated s.s.em was.as.ribed for an equivalent circuit with three time *** the time cons.ant for the anode interface reveals.to remain relatively cons.ant after the firs. dis.harge,its.s.rface s.emed to be more *** model 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) forms.a hetero-phas. between Li_(2)O_(2)/electrolyte,while creating a more compact and homogeneous.on the Li_(2)O_(2)/cathode *** methodology here des.ribed thus.offers.a way of directly probing changes.in s.rface chemis.ry evolution during cycling from a device through EIs.analys.s.

关键词： Li-O_(2)battery Operando Raman analys.s Equivalent circuit modeling Time-cons.ant dis.ribution

Anomalies.in the s.ort-range local environment and atomic diffus.on in s.ngle crys.alline equiatomic CrMnFeCoNi highentropy alloy

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Nano Res.arch 2024年第6期17卷 5336-5348页

作者： Alevtina s.ekhova Daniel Gaertner Alexei Kuzmin Ana guilherme Buzanich Goetz s.huck Ivo Zizak Gerhard Wilde Kirill V.Yus.nko s.rgiy Divins.i Helmholtz-Zentrum Berlin für Materialien und Energie(HZB) D-12489 BerlinGermany Ins.itute of Materials.Phys.cs University of MünsterD-48149 MünsterGermany Ins.itute of s.lid s.ate Phys.cs University of LatviaLV-1063 RigaLatvia Bundes.ns.alt für Materialfors.hung und–prüfung(BAM) D-12489 BerlinGermany

Multi-edge extended X-ray abs.rption fine s.ructure(EXAFs.s.ectros.opy combined with revers. Monte Carlo(RMC)s.mulations.was.us.d to probe the details.of element-s.ecific local coordinations.and component-dependent s.ructure relaxations.in s.ngle crys.alline equiatomic CrMnFeCoNi high-entropy alloy as.a function of the annealing *** repres.ntative s.ates.namely a high-temperature s.ate,created by annealing at 1373 K,and a low-temperature s.ate,produced by long-term annealing at 993 K,were compared in *** features.identified in atomic configurations.of particular principal components.indicate variations.in the local environment dis.ortions.connected to different degrees.of compos.tional dis.rder at the chos.n repres.ntative *** detected changes.provide new atomis.ic ins.ghts.and correlate with the exis.ence of kinks.previous.y obs.rved in the Arrhenius.dependencies.of component diffus.on rates.in the CrMnFeCoNi high-entropy alloy.

关键词： high-entropy alloys diffus.on s.ort-range order extended X-ray abs.rption fine s.ructure(EXAFs. revers. Monte Carlo

Human leukocyte antigen compatibility and incidence of donors.ecific antibodies.in pediatric liver trans.lant recipients

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World Journal of Gas.roenterology 2024年第33期30卷 3837-3845页

作者： Melina U Melere Flavia H Feier Jorge Neumann Antônio N Kalil Juliana de M Montagner Luiza s.Nader Carolina s.da s.lva Marco Aurélio F Junior Gabriela P Coral guilherme P Bobs.n Cris.ina T Ferreira Department of Hepatology and Liver Trans.lantation Santa Casa de Porto AlegrePorto Alegre 90050170Rio Grande do SulBrazil Department of Hepato-biliary-pancreatic s.rgery and Liver Trans.lantation Irmandade Santa Casa de Misericórdia de Porto AlegrePorto Alegre 90020-090Rio Grande do SulBrazil Pos.graduation Program in Medicine:Hepatology Federal University of Health Sciences of Porto AlegrePorto Alegre 90050-170Rio Grande do SulBrazil Laboratory of Trans.lantation Immunology Irmandade Santa Casa de Misericórdia de Porto AlegrePorto Alegre 90020-090Rio Grande do SulBrazil

BACKGROUND Antibody-mediated rejection following liver trans.lantation(LT)has.been increas.ngly recognized,particularly with res.ect to the emergence of de novo donor-s.ecific antibodies.Ds.s.and their impact on graft *** s.bs.antial evidence for adult populations.exis.s.res.arch focus.ng on pediatric LT outcomes.remains.*** To inves.igate the prevalence of human leukocyte antigen(HLA)mis.atches.and Ds. and evaluate their as.ociation with rejection epis.des.after pediatric *** A cohort of pediatric LT recipients.underwent HLA tes.ing at s.nta Cas. de Porto Alegre,Brazil,between December 2013 and December *** patients.who s.rvived for>30 days.after LT with at leas. one Ds. analys.s.were *** clas.es.I and II and cros.-matches.were *** pres.nce of de novo Ds.(dnDs.)was.evaluated at leas. 3 months.after LT us.ng the Luminex®s.ngle antigen bead method,with a pos.tive reaction thres.old s.t at 1000 *** epis.des.were confirmed by liver *** Overall,67 trans.lanted children were analyzed;61 received grafts.from living donors.85%of whom were related to ***-trans.lant Ds.(clas. I or II)was.detected in 28.3%of patients.and dnDs. was.detected in 48.4%.The median time to Ds. detection after LT was.19.7[interquartile range(IQR):4.3-35.6]*** rejection occurred in 13 patients.at follow-up,with C4d pos.tivity obs.rved in 5/13 Liver *** median time to rejection was.7.8(IQR:5.7-12.8)*** pres.nce of dnDs. was.s.gnificantly as.ociated with rejection(36%vs.3%,Ps.rvival rates.at 12 and 24 months.were 76%vs.100%and 58%vs.95%for patients.with dnDs. anti-DQ vs.thos. without,*** Our findings.highlight the importance of incorporating Ds. as.es.ment into pre-and pos.-trans.lantation protocols.for pediatric LT *** implications.may include immunos.ppres.ion minimization s.rategies.bas.d on this.analys.s.in pediatric LT recip

关键词： Human leukocyte antigens Donor-s.ecific antibodies Liver trans.lantation Pediatric Rejection

Inves.igation of the nutritional and functional roles.of a combinational us. of xylanas. and β-glucanas. on intes.inal health and growth of nurs.ry pigs

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Journal of Animal s.ience and Biotechnology 2024年第5期15卷 1932-1950页

作者： Hyunjun Choi Yes.d Garavito Duarte guilherme A.M.Pas.uali s.ng Woo Kim Department of Animal s.ience North Carolina State University116 Polk HallCampus Box 7621RaleighNC 27695USA BAs. s. Ludwigshafen 67056Germany

Background Xylanas. andβ-glucanas. combination(XG)hydrolyzes.s.luble non-s.arch polys.ccharides.that are anti-nutritional *** s.udy aimed to evaluate the effects.of increas.ng levels.of XG on intes.inal health and growth performance of nurs.ry *** Forty pigs.6.5±0.4 kg)were as.igned to 5 dietary treatments.and fed for 35 d in 3 phas.s.11,9,and 15 d,res.ectively).Bas.l diets.mainly included corn,s.ybean meal,and corn dis.iller's.dried grains.with s.lubles.contained phytas.(750 FTU/kg),and were s.pplemented with 5 levels.of XG at(1)0,(2)280 TXU/kg xylanas. and 125 TGU/kgβ-glucanas.,(3)560 and 250,(4)840 and 375,or(5)1,120 and 500,*** performance was.*** d 35,all pigs.were euthanized and jejunal mucos.,jejunal diges.a,jejunal tis.ues.and ileal diges.a were collected to determine the effects.of increas.ng XG levels.and XG intake on intes.inal *** Increas.ng XG intake tended to quadratically decreas.(P=0.059)vis.os.ty of jejunal diges.a(min:1.74 m Pa·s.at 751/335(TXU/TGU)/kg).Increas.ng levels.of XG quadratically decreas.d(Ps.d(Ps.d(Ps.of XG tended to linearly decreas.(P=0.073)jejunal Ig G and tended to quadratically increas.(P=0.085)jejunal villus.height to crypt depth ratio(max:2.62 at 560/250(TXU/TGU)/kg).Increas.ng XG intake tended to linearly increas. the apparent ileal diges.ibility of dry matter(P=0.087)and ether extract(P=0.065).Increas.ng XG intake linearly increas.d(Ps. of xylanas. andβ-glucanas. would hydrolyze the non-s.arch polys.ccharides.fractions.pos.tively modulating the jejunal mucos.-as.ociated *** intake of

关键词： Glucanas. Growth performance Intes.inal health Nurs.ry pigs Xylanas.

Ornithine as.artate effects.on bacterial compos.tion and metabolic pathways.in a rat model of s.eatotic liver dis.as.

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World Journal of Hepatology 2024年第5期16卷 832-842页

作者： Elis. Carolina Lange Pabulo Henrique Rampelotto Laris.e Longo Laura Bainy Rodrigues.de freitas Carolina Uribe-Cruz Mario Reis.Alvares.da-s.lva Experimental Laboratory of Hepatology and Gas.roenterology Hospital de Clínicas de Porto AlegrePorto Alegre 90035-007Brazil Graduate Program in Gas.roenterology and Hepatology Universidade Federal do Rio Grande do SulPorto Alegre 90035-007Brazil Bioinformatics.and Bios.atis.ics.Core Facility Universidade Federal do Rio Grande do SulPorto Alegre 91501-970Brazil Graduate Program in Biological s.iences.Pharmacology and Therapeutics Universidade Federal do Rio Grande do SulPorto Alegre 90035-007Brazil Facultad de Ciencias.de la s.lud Universidad Católica de las MisionesPosadasMisiones 3300Argentina Divis.on of Gas.roenterology Hospital de Clínicas de Porto AlegrePorto Alegre 90035-007RSBrazil Cons.lho Nacional de Des.nvolvimento Científico e Tecnológico(CNPq)res.archer Brasília 71605-001Brazil

BACKGROUND Metabolic-dys.unction as.ociated s.eatotic liver dis.as.(MAs.D)is.a hepatic manifes.ation of metabolic *** s.gges. ornithine as.artate(LOLA)as.drug *** To analyze the influence of LOLA intake on gut microbiota us.ng a nutritional model of *** Adult male s.rague Dawley rats.were randomized into three groups.Control(10 rats.fed with a s.andard diet),MAs.D(10 rats.fed with a high-fat and choline-deficient diet),and LOLA(10 rats.receiving 200 mg/kg/d LOLA,after the 16th week receiving high-fat and choline-deficient diet).After 28 wk of the experiment,animals.were euthanized,and feces.pres.nt in the intes.ine were *** fecal DNA extraction,the V4 region of the 16s.rRNA gene was.amplified followed by s.quencing in an Ion s.™*** Alpha and beta divers.ty metrics.were comparable between MAs.D and LOLA.3 OTUs.were differentially abundant between MAs.D and LOLA,which belong to the s.ecies.Helicobacter rodentium,Parabacteroides.golds.einii,and Parabacteroides.*** functional prediction provided two different metabolic profiles.between MAs.D and *** 9 pathways.differentially abundant in MAs.D are related to a change in energy s.urce,adenos.ne/purine nucleotides.degradation as.well as.guanos.ne and adenos.ne deoxyribonucleotides.*** 14 pathways.differentially abundant in LOLA are as.ociated with four major metabolic functions.primarily influenced by L-as.artate,including tricarboxylic acid cycle pathways.purine/guanos.ne nucleotides.bios.nthes.s.pyrimidine ribonucleotides.bios.nthes.s.and s.lvage as.well as.lipid IVA *** Although LOLA had no influence on alpha and beta divers.ty in this.nutritional model of MAs.D,it was.as.ociated with changes.in s.ecific gut microbes.and their related metabolic pathways.

关键词： Animal model Gut microbiota Metabolic-as.ociated s.eatotic liver dis.as. Metabolic prediction Ornithine as.artate

Urea breath tes. for Helicobacter pylori infection in adult dys.eptic patients. A meta-analys.s.of diagnos.ic tes. accuracy

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World Journal of Gas.roenterology 2024年第6期30卷 579-598页

作者： Fabian Fellipe Bueno Lemos.Caroline Tianeze de Cas.ro Marcel s.lva Luz Gabriel Reis.Rocha Gabriel Lima Correa s.ntos.Luís.guilherme de Oliveira s.lva Mariana s.ntos.Calmon Cláudio Lima s.uza Ana Carla Zarpelon-s.hutz Kádima Nayara Teixeira Dulciene Maria de Magalhães.Queiroz Fabrício Freire de Melo Ins.ituto Multidis.iplinar em s.úde Universidade Federal da BahiaVitória da Conquista 45029-094BahiaBrazil Ins.ituto de s.úde Coletiva Universidade Federal da BahiaSalvador 40110040BahiaBrazil Campus.Toledo Universidade Federal do ParanáToledo 85919-899ParanáBrazil Laboratory of Res.arch in Bacteriology UFMGBelo Horizonte 30130-100Minas GeraisBrazil

BACKGROUND Helicobacter pylori(***)infection has.been well-es.ablis.ed as.a s.gnificant ris. factor for s.veral gas.rointes.inal *** urea breath tes.(UBT)has.emerged as.a leading non-invas.ve method for detecting *** numerous.s.udies.confirming its.s.bs.antial accuracy,the reliability of UBT res.lts.is.often compromis.d by inherent *** findings.unders.ore the need for a rigorous.s.atis.ical s.nthes.s.to clarify and reconcile the diagnos.ic accuracy of the UBT for the diagnos.s.of *** *** To determine and compare the diagnos.ic accuracy of 13C-UBT and 14C-UBT for *** infection in adult patients.with *** We conducted an independent s.arch of the PubMed/MEDLINE,EMBAs.,and Cochrane Central databas.s.until April *** s.arch included diagnos.ic accuracy s.udies.that evaluated at leas. one of the index tes.s.^(13)C-UBT or ^(14)C-UBT)agains. a reference *** us.d the QUADAs.2 tool to as.es. the methodo-logical quality of the *** utilized the bivariate random-effects.model to calculate s.ns.tivity,s.ecificity,pos.tive and negative tes. likelihood ratios.LR+and LR-),as.well as.the diagnos.ic odds.ratio(DOR),and their 95%confidence *** conducted s.bgroup analys.s.bas.d on urea dos.ng,time after urea adminis.ration,and as.es.ment *** inves.igate a pos.ible thres.old effect,we conducted s.earman correlation analys.s.and we generated s.mmary receiver operating characteris.ic(s.OC)curves.to as.es. ***,we vis.ally ins.ected a funnel plot and us.d Egger’s.tes. to evaluate publication *** both as.reliable diagnos.ic tools.in clinical *** In s.mmary,our s.udy has.demons.rated that ^(13)C-UBT has.been found to outperform the ^(14)C-UBT,making it the preferred diagnos.ic ***,our res.lts.emphas.ze the s.gnificance of carefully cons.dering urea dos.ge,as.es.ment timing,and meas.rement techniques.for both tes.s.to enh

关键词： Helicobacter pylori Urea breath tes. Diagnos.s Diagnos.ic tes. accuracy Meta-analys.s

The Us. of s.condary Grape Biomas. in Beef Cattle Nutrition on Carcas. Characteris.ics. Quality and s.elf Life of Meat

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Food and Nutrition s.iences 2024年第6期15卷 447-469页

作者： Vitor L. Molos.e guilherme L. Deolindo Rafael V. P. Lago Bruna Klein Claiton A. Zotti Marcelo Vedovato Marcylene V. da s.lveira Pris.ila M. Copetti Maria R. C. s.hetinger Jus.ivete F. Favero Eliana L. Fiorentin Aleks.ndro s. da s.lva Univers.dade do Es.ado de s.nta Catarina (UDEs.) Chapec Brazil Department of Animal s.ience UDESC Chapec Brazil Department of Animal s.ience Universidade do Oeste de Santa Catarina Xanxere Brazil Dean Lee Res.arch and Extens.on Center Louisiana State University Alexandria LA USA Department of Biochemis.ry Universidade Federal de Santa Maria Santa Maria Brazil Department of Medicina Veterinria UNOCHAPEC Chapec Brasil

We determined whether the inclus.on of 100 g/kg dry matter of grape pomace s.lage (GPs. and grape pomace bran (GPB) as.s.bs.itutes.for other traditional fiber s.urces.in the diet of s.eers.(Charolais.x Nellore) would improve carcas. characteris.ics. meat quality and compos.tion, and s.elf life. Twenty-four animals.(248 ± 19.32 kg of initial body weight) were fed a high concentrate diet for 121 days. Carcas. characteris.ics.were meas.red, and the longis.imus.dors. mus.le was.analyzed for fatty acid (FA) profile and compos.tion. The meat was.s.iced and s.ored in air-permeable packages.for 10 days. On each s.mpling day (d 1, 3, 7, and 10), oxidative s.ability, bacterial load, lipid and protein oxidation, and s.aining were analyzed. The experimental diets.influenced the pH of cold carcas.es.only. The GPs.group had a higher pH than the control. The GPs.and GPB groups.s.owed improved oxidant s.atus.(i.e., lower lipid peroxidation and concentrations.of reactive oxygen s.ecies.were in the meat of both groups.than in control). On the firs. day of s.orage, the antioxidant enzyme glutathione s.trans.eras. activity was.more s.gnificant in the meat of the GPs.and GPB groups.than in the control. The bacterial loads.in the meat were attenuated by GPs.inclus.on;there were lower total coliform counts.and a trend toward lower counts.for enterobacteria in the control group. The diets.altered the FA profile of the meat;i.e., the GPB diet allowed for a more s.gnificant amount of the n-6 omegas.in the meat, while the GPs.diet s.owed a tendency for a more s.gnificant amount of n-6 and 9 omegas. Both diets.(GPs.and GPB) increas.d the amounts.of long-chain FAs. The GPs.diet decreas.d s.turated FA levels. We conclude that the dietary treatments.GPs.and GPB are a promis.ng alternative to maintain meat quality s.andards.throughout in real-world retail conditions. Thes. treatments.gave ris. to an improvement in the nutritional value of the meat due to the more s.gnificant amounts.of FAs.that im

关键词： Animal Nutrition Antioxidant Biomas. Grape Meat Quality Microbiology Res.due