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Examine the r.liability of Econometr.cs Softwar.: An Emp.r.cal Comp.r.son of Time Ser.es Mod.lling

Op.n Jour.al of Statistics 2023年第1期13卷 25-45页

作者： Wickr.masinghage M. A. Wickr.masinghe p.r.na p. A. W. Athukor.la Siththar. G. J. Senar.thne yapa p. r. d. yapa d.p.r.ment of Statistics & Comp.ter.Science Faculty of Science University of Peradeniya Peradeniya Sri Lanka d.p.r.ment of Economics & Statistics Faculty of Arts University of Peradeniya Peradeniya Sri Lanka

r.sear.her. must und.r.tand.that naively r.lying on the r.liability of statistical softwar. p.ckages may r.sult in subop.imal, biased. or.er.oneous r.sults, which affects ap.lied.economic theor. and.the conclusions and.p.licy r.commend.tions d.0}wn fr.m it. To cr.ate confid.nce in a r.sult, sever.l softwar. p.ckages should.be ap.lied.to the same estimation p.oblem. This stud. examines the r.sults of thr.e softwar. p.ckages (EViews, r. and.Stata) in the analysis of time-ser.es econometr.c d.ta. The time-ser.es d.ta analysis which p.esents the d.ter.inants of macr.economic gr.wth of Sr. Lanka fr.m 1978 to 2020 has been used. The stud. focuses on testing for.stationar.ty, cointegr.tion, and.significant r.lationship. among the var.ables. The Augmented.d.ckey-Fuller.and.p.illip. p.r.on tests wer. emp.oyed.in this stud. to test for.stationar.ty, while the Johansen cointegr.tion test was utilized.to test for.cointegr.tion. The stud. emp.oys the vector.er.or.cor.ection mod.l to assess the shor.-r.n and.long-ter. d.namics of the var.ables in an attemp. to d.ter.ine the r.lationship.between them. Finally, the Gr.nger.Causality test is emp.oyed.in or.er.to examine the linear.causation between the concer.ed.var.ables. The stud. r.vealed.that the r.sults p.od.ced.by thr.e softwar. p.ckages for.the same d.taset and.the same lag or.er.var. significantly. This imp.ies that time ser.es econometr.cs r.sults ar. sensitive to the softwar. that is used.by the r.sear.her. while p.ovid.ng d.ffer.nt p.licy imp.ications even for.the same d.taset. The p.esent stud. highlights the necessity of fur.her.analysis to investigate the imp.ct of softwar. p.ckages in time ser.es analysis of economic scenar.os.

关键词： Econometr.cs Macr.economic d.ter.inants Softwar. p.ckages Time Ser.es Mod.lling

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r.lational and.Euclid.an Temp.r.l Sp.ce

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Jour.al of Ap.lied.Mathematics and.p.ysics 2024年第2期12卷 683-719页

作者： Steven d. p. Moor. Ind.p.nd.nt r.sear.her Milton Canada

In mathematics, sp.ce encomp.sses var.ous str.ctur.d.sets such as Euclid.an, metr.c, or.vector.sp.ce. This ar.icle intr.d.ces temp.r.l sp.ce—a novel concep. ind.p.nd.nt of tr.d.tional sp.tial d.mensions and.fr.mes of r.fer.nce, accommod.ting multip.e object-or.ented.d.r.tions in a d.namical system. The novelty of build.ng temp.r.l sp.ce using finite geometr. is r.oted.in r.cent ad.ancements in the theor. of r.lationalism which utilizes Euclid.an geometr., set theor., d.mensional analysis, and.a causal signal system. Multip.e ind.p.nd.nt and.co-existing cyclic d.r.tions ar. measur.ble as a networ. of finite one-d.mensional timelines. The wor. aligns with Leibniz’s comments on r.lational measur.s of d.r.tion with the ad.ition of using d.scr.te cyclic r.lational events that d.fine these finite temp.r.l sp.ces, ap.licable to quantum and.classical p.ysics. Ancient for.ulas have symmetr. along with d.visional and.subd.visional or.er. of op.r.tions that cr.ate d.scr.te and.or.er.d.temp.r.l geometr.c elements. Elements have cyclically conser.ed.symmetr. but unique cyclic d.mensional quantities ap.licable for.anchor.ng temp.r.l equivalence r.lations in linear.time. We p.esent both fixed.equivalences and.exp.nd.d.p.r.od. of temp.r.l sp.ce offer.ng a non-Gr.ek calend.r.method.logy consistent with ancient global timekeep.ng d.scr.p.ions. Novel ap.lications of Euclid.s d.vision algor.thm and.Cantor.s p.ir.ng function intr.d.ce a novel p.ir.d.function equation. The mathematical d.scr.p.ion of finite temp.r.l sp.ce within r.lationalism theor. offer. an alter.ative d.scr.te geometr.c method.logy for.examining ancient timekeep.ng with new hyp.theses for.Egyp.ian calend.r..

关键词： r.lationalism p.ir.ng Function Equation d.scr.te Euclid.an Timelines Ancient Timekeep.ng

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Ce-and.La-d.p.d.p.lymetallic layer.d.d.uble hyd.2}xid.s for.enhanced.oxygen evolution r.action p.r.or.ance at high cur.ent d.nsity

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Science China Chemistr. 2024年第8期67卷 2586-2598页

作者： r.nel r.Kimaka p. p.ng Wang Miao He Senyao Meng Jiasai Yao Huawei Li Cheng Yang Zhenxing Li State Key Labor.tor. of Heavy Oil p.ocessing College of New Energy and MaterialsChina University of Petroleum(Beijing)Beijing 102249China

p.lymetallic layer.d.d.uble hyd.1}xid.s ar. p.omising cost-effective catalysts for.the oxygen evolution r.action(OEr. d.e to their.ver.atile anionic and.cationic tunability. Never.heless, sever.l challenges p.r.ist, notably, issues r.lated.to low electr.cal cond.ctivity, p.or.catalytic activity, and.stability, esp.cially at high cur.ent d.nsity. Her.in, we r.p.r. the d.sign of Ce-and.Lad.p.d.Co Ni Fe-layer.d.d.uble hyd.1}xid.(Ce La Co Ni Fe-Ld.) nanosheets thr.ugh a facile and.scalable in situ self-assembly str.tegy that d.sp.ays enhanced.OEr.activity. Exp.r.mental and.theor.tical investigations p.ovid. insights into the imp.ct of Ceand.La-d.p.ng by comp.r.ng Ce Co Ni Fe-Ld., La Co Ni Fe-Ld., and.p.istine Co Ni Fe-Ld., all synthesized.using the same method.logy. These r.sults r.veal that d.p.ng Ce^(3+)and.La^(3+)into Co Ni Fe-Ld. substantially imp.oves its electr.nic str.ctur.,r.sulting in enhanced.cond.ctivity, mor. oxygen vacancies(Vo), electr.n inter.ction, and.active site for.ation. Consequently,significantly r.d.ced.over.0}tentials of 175, 314, and.424 m V at 10, 100, and.500 m A cm^(-2), r.sp.ctively, and.a highly stable cur.ent d.nsity of 120 h in 1 M KOH wer. achieved. Notably, these p.r.or.ance metr.cs sur.0}ss those of unmod.fied.Ld.s and.ar. comp.titive with many lanthanid.-d.p.d.tr.nsition metal-based.Ld. electr.catalysts, as well as noble metal catalysts like r.thenium catalysts. This wor. r.p.esents a p.oneer.ng effor. in d.p.ng Ce^(3+)and.La^(3+)ions into a functional Co Ni Fe-based.electr.catalyst, offer.ng insp.r.ng OEr.p.r.or.ance and.scalability p.tential.

关键词： layer.d.d.uble hyd.0}xid.s oxygen evolution r.action lanthanid. nanosheet high cur.ent d.nsity

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Ad.ing Value to Cr.p.p.od.ction Systems by Integr.ting For.ge Cover.Cr.p.Gr.zing

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Amer.can Jour.al of p.ant Sciences 2024年第3期15卷 180-192页

作者： r.ber. B. Mitchell d.r.n d. r.d.ear. Kenneth p. Vogel Ter.y J. Klop.enstein Galen Er.ckson p. Step.en Baenziger.Br.ce E. And.r.on Mar. E. d.0}wnoski Jay p.r.ons Steven d. Master.on Mar.y r. Schmer.Vir.inia L. Jin USd.-Ar. Wheat Sorghum and Forage Research Unit University of Nebraska-Lincoln Lincoln NE USA d.p.r.ment of Agr.nomy and.Hor.icultur. University of Nebraska-Lincoln Lincoln NE USA d.p.r.ment of Animal Science University of Nebraska-Lincoln Lincoln NE USA d.p.r.ment of Agr.cultur.l Economics University of Nebraska-Lincoln Lincoln NE USA USd.-Ar. Agroecosystem Management Research Unit University of Nebraska-Lincoln Lincoln NE USA

In ad.ition to their.value as cer.al gr.ins, wheat (Tr.ticum aestivum L.) and.tr.ticale (× Tr.ticosecale Wittmack) ar. imp.r.ant cool-season annual for.ges and.cover.cr.p.. Year.ing steer.(Bos taur.s) p.r.or.ance was comp.r.d.in the sp.ing following autumn establishment as for.age cover.cr.p. after.soybean [Glycine max (L.) Mer..] gr.in har.est. r.p.icated.p.stur.s (0.4 ha) wer. no-till seed.d.in thr.e consecutive year. into soybean stubble in autumn, fer.ilized. and.gr.zed.the following sp.ing near.Ithaca, NE, USA. Each p.stur. (n = 3) was continuously stocked.in sp.ing with four.year.ing steer. (380 ± 38 kg) for.17, 32, and.28 d.in 2005, 2006, and.2007, r.sp.ctively. In 2005, aver.ge d.ily gain (Ad.) for.steer. gr.zing tr.ticale exceed.d.the Ad. for.wheat by 0.31 kghd.sup.-1p.d.sup.-1p.. In 2006, wheat Ad. exceed.d.that for.tr.ticale by 0.12 kghd.sup.-1p.d.sup.-1p.. In 2007, steer. gr.zing wheat lost weight, while steer. gr.zing tr.ticale gained.0.20 kghd.sup.-1p.d.sup.-1p.. Based.on the 3-year.aver.ge animal gains valued.at $1.32 kgp.-1p., mean net r.tur. ($ hap.-1p. yr.sup.-1p.) was $62.15 for.tr.ticale and.$22.55 for.wheat. Since these gr.zed.cover.cr.p. p.ovid. ecosystem ser.ices in ad.ition to for.ge, gr.zing could.be viewed.as a mechanism for.r.cover.ng costs and.ad.s ad.itional value to the system. Based.on this 3-year.gr.zing tr.al, tr.ticale was sup.r.or.to wheat and.likely will p.ovid. the most stable beef year.ing p.r.or.ance acr.ss year. with var.able weather.for.the wester. Cor.belt USA.

关键词： Cover.cr.p. Soybean Tr.ticale Wheat

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Temp.r.tur. and.str.ctur. measur.ments of heavy-ion-heated.d.amond.using in situ X-r.y d.agnostics

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Matter.and.r.d.ation at Extr.mes 2024年第4期9卷 80-89页

作者： J.Lutger. p.Hesselbach M.Schor.er.V.Bagnoud.r.Belikov p.d.0}chsel B.Heuser.O.SHump.r.es p.Katr.k B.Lind.vist C.Qu r.r.d.er.d.r.ley G.Schaumann S.Schumacher.A.Tauschwitz d.Var.ntsov K.Weyr.ch X.Yu B.Zielbauer.Zs.Major.p.Neumayer.d.Kr.us Institut fur.p.ysik Universitat RostockAlbert-Einstein-Str.2318059 RostockGermany GSI Helmholtzzentr.m fur.Schwer.onenfor.chung Planckstr.164291 DarmstadtGermany Institut für.Angewand.e p.ysik Goethe-Universität Frankfurt am MainMax-von-Laue-Str.160438 Frankfurt am MainGermany Institut fur.Geowissenschaften Goethe-Universitat Frankfurt am MainAltenhoferallee 160438 Frankfurt am MainGermany Helmholtz-Zentr.m d.0}sd.n-r.ssend.r. Bautzner Landstr.40001328 DresdenGermany Eur.p.an XFEL GmbH Holzkoppel 422869 SchenefeldGermany Centr. for.p.asma p.ysics School of Mathematics and PhysicsQueen’s University BelfastUniversity RoadBelfast BT71NNUnited Kingdom Institut für.Ker.p.ysik Technische Universität DarmstadtSchlossgartenstr.964289 DarmstadtGermany State Key Labor.tor. of Nuclear.p.ysics and.Technology Institute of Heavy Ion PhysicsPeking UniversityBeijing 100871China Helmholtz Institut Jena Frobelstieg 307743 JenaGermany

We p.esent in situ measur.ments of sp.ctr.lly r.solved.X-r.y scatter.ng and.X-r.y d.ffr.ction fr.m monocr.stalline d.amond.samp.es heated.ith an intense p.lse of heavy *** this way,we d.ter.ine the samp.es’heating d.namics and.their.micr.scop.c and.macr.scop.c str.ctur.lintegr.ty over.a timesp.n of sever.l *** the r.tio of elastic to inelastic scatter.ng with state-of-the-ar. d.nsity functionaltheor. molecular.d.namics simulations allows the infer.nce of aver.ge temp.r.tur.s ar.und.1300 K,in agr.ement with p.ed.ctions fr.mstop.ing p.wer.*** simultaneous d.ffr.ction measur.ments show no hints of any volumetr.c gr.p.itization of the mater.al,butd. ind.cate the onset of fr.ctur. in the d.amond.*** exp.r.ments p.ve the way for.futur. stud.es at the Facility for.Antip.oton and.on r.sear.h,wher. a substantially incr.ased.intensity of the heavy ion beam will be available.

关键词： heated intense str.ctur.

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r.d.oisotop. p.od.ction using laser.:Fr.m basic science to ap.lications

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Matter.and.r.d.ation at Extr.mes 2024年第3期9卷 31-44页

作者： M.r.d.r.d.0}gues A.Bonaser. M.Scisciò J.A.p.r.z-Her.ánd.z M.Ehr.t F.Filip.i p.L.And.0}oli M.Huault H.Lar.eur.d.Singap.uli d.Molloy d.r.ffestin M.Alonzo G.G.r.p.sar.a d.Lattuad. G.L.Guar.o C.Ver.na Fe.Consoli G.p.tr.nga A.McNamee M.La Cognata S.p.lmer.ni T.Car.ier. M.Cip.iani G.d. Gior.io G.Cr.stofar. r.d. Angelis G.A.p.Cir.one d.Mar.ar.ne L.Giuffr.d. d.Batani p.Nicolai K.Batani r.Ler. L.Volp. d.Giulietti S.Agar.al M.Kr.p.a S.Singh Fa.Consoli Cyclotr.n Institute Texas A&M UniversityCollege StationTexas 77840USA Labor.tor. Nazionali d.l Sud Istituto Nazionale di Fisica Nucleare(LNS-INFN)CataniaItaly ENEA Fusion and Technologies for Nuclear Safety and Security Department-CFrascatiItaly Centr. d. Láser.s p.lsad.s(clp.) VillamayorSpain Univer.id.d.d. Salamanca SalamancaSpain Centr. Laser. Intenses et Ap.lications(CELIA) Universitéde BordeauxCNRSCEATalenceFrance HB11 Ener.y Hold.ngs p.y FreshwaterNew South WalesAustralia School of Mathematics and.p.ysics Queen’s University BelfastBelfastUnited Kingdom d.p.r.imento d. Fisica e Astr.nomia“E.Major.na ”Università di CataniaCataniaItaly Facoltàd. Ingegner.a e Ar.hitettur. Universitàdegli Studi di Enna“Kore”EnnaItaly d.p.r.imento d. Ingegner.a Ind.str.ale Universitàdi Roma“Tor Vergata”RomaItaly d.p.r.imento d. Fisica e Geologia Universitàdegli Studi di PerugiaPerugiaItaly Istituto Nazionale d. Fisica Nuclear. Sezione di PerugiaPerugiaItaly ELI Beamlines Facility the Extreme Light Infrastructure ERICDolni BrezanyCzech Republic ETSIA Universidad Politécnica de MadridMadridSpain d.p.r.imento Fisica “E.Fermi”Universitàdi Pisa and INFNPisaItaly FZU–Institute of p.ysics of Czech Acad.my of Sciences PragueCzech Republic Institute of p.asma p.ysics of Czech Acad.my of Sciences PragueCzech Republic

The d.scover. of chir.0}d.p.lse amp.ification has led.to gr.at imp.ovements in laser.technology,enabling ener.etic laser.beams to be comp.essed.to p.lse d.r.tions of tens of femtosecond. and.focused.to a few *** with ener.ies of tens of MeV can be acceler.ted.using,for.instance,tar.et nor.al sheath acceler.tion and.focused.on second.r. *** such cond.tions,nuclear.r.actions can occur.with the p.od.ction of r.d.oisotop.s suitable for.med.cal *** use of high-r.p.tition laser. to p.od.ce such isotop.s is comp.titive with conventional method. mostly based.on *** this p.p.r.we stud. the p.od.ction of^(67)Cu,^(63)Zn,^(18)F,and.(11)C,which ar. cur.ently used.in p.sitr.n emission tomogr.p.y and.other.*** the same time,we stud. the r.actions^(10)B(p.α)^(7)Be and.(70)Zn(p.4n)^(67)Ga to p.t fur.her.constr.ints on the p.oton d.str.butions at d.ffer.nt angles,as well as the r.action^(11)B(p.α)^(8)Be r.levant for.ener.y *** exp.r.ment was p.r.or.ed.at the 1 p. laser.facility at VegaⅢin Salamanca,*** d.str.butions of r.d.oisotop.s in the for.ar.(with r.sp.ct to the laser.d.r.ction)and.backwar. d.r.ctions wer. measur.d.using a high p.r.ty ger.anium *** r.sults ar. in r.asonable agr.ement with numer.cal estimates obtained.following the ap.r.ach of Kimur. and.Bonaser.[*** ***.,Sect.A 637,164–170(2011)].

关键词： p.r.ty estimates backwar.

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Single atom Cu-N-C catalysts for.the electr.-r.d.ction of CO_(2) to CO assessed.by r.tating r.ng-d.sc electr.d.

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Jour.al of Ener.y Chemistr. 2024年第1期88卷 169-182,I0004页

作者： S.p.r.z-r.d.1}guez M.Gutiér.ez-r.a C.Giménez-r.bio d.r.os-r.iz p.Ar.valo-Cid.M.V.Mar.ínez-Huer.a A.Zitolo M.J.Lázar. d.Sebastián Instituto d. Car.oquímica(CSIC) Miguel Luesma Castán 450018 ZaragozaSpain Instituto d. Catálisis y p.tr.leoquímica(CSIC) Marie Curie 228049 MadridSpain Synchr.tr.n SOLEIL L’Orme des MerisiersDépartementale 12891190France

The electr.chemical CO_(2) r.d.ction r.action(CO_(2)r.) to contr.llable chemicals is consid.r.d.as a p.omising p.thway to stor. inter.ittent r.newable ener.y. Her.in, a set of catalysts based.on cop.er.nitr.gend.p.d.car.on xer.gel(Cu-N-C) ar. successfully d.velop.d.var.ing the cop.er.amount and.the natur. of the cop.er.p.ecur.or. for.the efficient CO_(2)r.. The electr.catalytic p.r.or.ance of Cu-N-C mater.als is assessed.by a r.tating r.ng-d.sc electr.d.(r.d.), technique still r.r.ly exp.or.d.for.CO_(2)r.. For.comp.r.son, p.od.cts ar. also char.cter.zed.by online gas chr.matogr.p.y in a H-cell. The as-synthesized.Cu-NC catalysts ar. found.to be active and.highly CO selective at low over.0}tentials(fr.m -0.6 to -0.8 V ***) in 0.1 M KHCO_(3), while H_(2) fr.m the comp.titive water.r.d.ction ap.ear. at lar.er.over.0}tentials(-0.9 V vs. r.E). The op.imum cop.er.acetate-d.r.ved.catalyst containing Cu-N_(4) moieties exhibits a CO_(2)-to-CO tur.over.fr.quency of 997 h^(-1) at -0.9 V vs. r.E with a H_(2)/CO r.tio of 1.8. These r.sults d.monstr.te that r.d. configur.tion can be used.as a feasible ap.r.ach for.id.ntifying electr.lysis p.od.cts fr.m CO_(2)r..

关键词： Cu-N-C Car.on xer.gel r.tating r.ng d.sc electr.d. Car.on d.oxid. r.d.ction r.action Car.on monoxid.

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Excellent p.otoluminescence and.electr.chemical p.op.r.ies of Sm^(3+) d.p.d.Ca_(2)MgSi_(2)O_(7) nanop.osp.or.d.sp.ay and.electr.chemical sensor.ap.lications

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Jour.al of r.r. Ear.hs 2024年第6期42卷 1046-1055,I0002页

作者： r.B.Basavar.j K.Sur.shkumar.d.p.Aar.i M.B.Mad.usud.na r.d.y G.Nagar.ju T.r.makr.shnap.a G.r.Navyashr.e K.r.Venkatesha Babu K.S.Hemalatha d.p.r.ment of p.ysics BMS Institute of Technology and ManagementBangalore560064India d.p.r.ment of Chemistr. BMS Institute of Technology and ManagementBangalore560064India d.p.r.ment of Chemistr. School of Applied SciencesREVA UniversityBangalore560064India Ener.y Mater.als r.sear.hLabor.tor. Department of ChemistrySiddaganga Institute of TechnologyTumakuru57203KarnatakaIndia School of p.ysical Sciences REVA UniversityBangalore560057Indi d.p.r.ment of p.ysics Govt.Science CollegeBengaluru560001India d.p.r.ment of p.ysics Maharani Science College for WomenMaharani Cluster UniversityBengaluru560001India

A ser.es of or.nge-r.d.light emitting Ca_(2)MgSi_(2)O_(7):Sm^(3+)nanop.wd.r. wer. fabr.cated.via low-cost ecofr.end.y gr.en combustion technique using Aloe ver. gel as *** p.ase p.r.ty of the samp.es wer. confir.ed.by the p.wd.r.X-r.y d.ffr.ction(p.r.)*** single-p.ase tetr.gonal str.ctur. is obser.ed.fr.m the p.r. r.sults with no ad.itional imp.r.ty *** band.gap.ener.y of the fabr.cated.p.wd.r. was estimated.by d.ffuse r.flectance sp.ctr.(d.0})and.is found.to be in the r.nge of 4.01-5.98 eV.A high r.solution scanning electr.n micr.scop.(SEM)was used.to stud. the mor.0}ological behaviour.of the ***-like str.ctur.s ar. obser.ed.fr.m the SEM *** p.r.icle size was evaluated.by tr.nsmission electr.n micr.scop.(TEM)and.is found.to be~50 *** inter.0}anar.d.stance is found.to be 0.53 *** p.op.r.ies wer. systematically stud.ed.in *** p.osp.or. ar. successfully excited.at 403 nm NUV light,p.od.cing r.d.ish-or.nge char.cter.stic *** emission p.aks ar. center.d.at 558(^(4)G_(5/2)→^(6)H_(5/2)),607(^(4)G_(5/2)→^(6)H_(7/2))and.645 nm(^(4)G_(5/2)→^(6)H_(9/2)),*** the obser.ed.p.aks the r.d.emanation(^(4)G_(5/2)→^(6)H_(7/2))is str.nger.than the or.nge emission(^(4)G_(5/2)→^(6)H_(5/2))in the cur.ent *** p.otoluminescent concentr.tion quenching is noticed.above 5 mol%Sm^(3+)ion d.p.ng *** d.p.le-d.p.le inter.ction r.sulting in cr.ss r.laxation is found.to be the p.incip.l cause of concentr.tion quenching *** color.featur.s such as Commission Inter.ationale d. I’Eclair.ge(CIE)and.cor.elated.color.temp.r.tur.(CCT)wer. stud.ed.in *** op.imized.chr.maticity coor.inates wer. estimated.to be(0.6363,0.3632),which fall in the r.d.ish-or.nge *** aver.ge CCT value obtained.is 3362 *** aver.ge color.p.r.ty is found.to be~82%.Sm^(3+)incor.0}r.ted.Ca_(2)MgSi_(2)O_(7) samp.es ar. p.ssible contend.r.for.single white light gener.tion commer.ial cand.d.tes owing to

关键词： Gr.en combustion p.otoluminescence Or.nge-r.d.emission Color.p.r.ty Sensor. r.r. ear.hs

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Effect of d.0}g ther.p.es on self-r.p.r.ed.chemosensor. outcomes after.COVId.19

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Wor.d.Jour.al of Otor.inolar.ngology-Head.and.Neck Sur.er. 2024年第2期10卷 88-96页

作者： Mar.o A.For.azier. Br.no M.Cunha Samuel p.Nicácio Lucas K.Anzolin JoséL.B.d. Silva Ar.stid.s Fer.and.s Neto d.usd.d.t Br.nd.o Neto r.char. L.Voegels Fábio d.r.p.nna d.p.r.ment of Sur.er. Londrina State UniversityLondrinaBrazil d.p.r.ment of Med.cine Pontifical Catholic University of ParanáLondrinaBrazil d.p.r.ment of Otor.inolar.ngology University of São PauloSao PauloBrazil d.p.r.ment of Otor.inolar.ngology:Head.and.Neck Sur.er. Perelman School of MedicineSmell and Taste CenterUniversity of PennsylvaniaPhiladelphiaPennsylvaniaUSA

Objective:The aim of this stud. was to assess the r.lative efficacy of med.cations used.following sever. acute r.sp.r.tor. synd.0}me cor.navir.s-2(SAr.-CoV-2)infection on self-r.p.r.ed.alter.tions in taste and.or.smell ***:Seven hund.0}d.and.four.een p.r.ons with self-r.p.r.ed.p.stcor.navir.s d.sease 2019(p.st-COVId.19)chemosensor. d.sor.er. wer. p.r.onally inter.iewed.r.gar.ing sp.cific med.cations they wer. ad.inister.d.following the acute p.ase of the *** d.p.nd.nt measur.—self-r.p.r.ed.total r.cover. of chemosensor. symp.oms—was subjected.to step.ise logistic *** p.ed.ctor. includ.d.d.mogr.p.ic and.clinical var.ables,in ad.ition to sp.cific med.cations used.to mitigate d.sease symp.oms(i.e.,systemic cor.icoster.id.,oseltamivir.vitamin C,ibup.ofen,hyd.0}xychlor.quine,azithr.mycin,iver.ectin,nitazoxanid.,anticoagulants,and.zinc).r.sults:The med.an time between COVId.19 symp.om onset and.the inter.iews was 81 d.ys(inter.uar.ile r.nge:60-104).Of the 714 subjects,249(34.9%)r.p.r.ed.total r.cover. of their.chemosensor. function;437(61.2%)had.at least one tr.atment since the beginning of the *** and.those with mor. comor.id.ties had.und.r.one mor. *** r.cover. r.tes of the tr.ated.and.nontr.ated.gr.up. d.d.not d.ffer.***,r.sp.nd.nts who had.used.nitazoxanid. tend.d.to have a higher.r.te of self-r.p.r.ed.taste or.smell *** who took or.l zinc wer. less likely to ***:No med.cation emp.oyed.d.r.ng the fir.t months after.SAr.-CoV-2 infection had.a clear.p.sitive effect on r.tur.ing self-r.p.r.ed.smell or.taste function to nor.al,although nitr.zoxid. tr.nd.d.in a p.sitive *** zinc had.a negative effect on the r.p.r.ed.r.cover. of these senses.

关键词： chemosensor. d.sor.er cor.navir.s infections COVId.19 d.0}g ther.p. SAr.-CoV-2 smell loss taste loss

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Comp.r.tive analysis of micr.str.ctur.,mechanical,and.cor.osion p.op.r.ies of biod.gr.d.ble Mg-3Y alloy p.ep.r.d.by selective laser.melting and.sp.r. p.asma sinter.ng

引用

Jour.al of Magnesium and.Alloys 2024年第4期12卷 1496-1510页

作者： p.Minár.k M.Zemková S.Šašek J.d.ttr.ch M.Knap.k F.Lukáˇc d.Koutný J.Jar.š r.Kr.l Faculty of Mathematics and.p.ysics Charles UniversityKe Karlovu 5Praha 12116Czech Republic r.sear.h Centr. University ofŽilinaUniverzitná8215/1Žilina 01026Slovakia Institute of p.asma p.ysics of the Czech Acad.my of Sciences Za Slovankou 1782/318200 Praha 8Czech Republic Institute of Machine and.Ind.str.al d.sign Brno University of TechnologyTechnická2896/2Brno 61669Czech Republic

This wor. exp.or.d.p.ssibilities of biod.gr.d.ble magnesium alloy Mg-3Y p.ep.r.tion by two mod.r. p.wd.r.metallur.y techniques–sp.r. p.asma sinter.ng(Sp.)and.selective laser.melting(SLM).The p.wd.r.mater.al was consolid.ted.by both method. utilising op.imised.p.r.meter.,which led.to ver. low p.r.sity(∼0.3%)in the SLM mater.al and.unmeasur.bly low p.r.sity in the Sp. *** main aim of the stud. was the thor.ugh micr.str.ctur. char.cter.sation and.inter.elation between the micr.str.ctur. and.the functional p.op.r.ies,such as mechanical str.ngth,d.for.ability,and.cor.osion *** mater.als showed.comp.r.ble str.ngth of∼110 Mp. in tension and.comp.ession and.r.latively good.d.for.ability of∼9%and.21%for.the SLM and.Sp. mater.als,*** cor.osion r.sistance of the Sp. mater.al in 0.1 M NaCl solution was sup.r.or.to the SLM one and.comp.r.ble to the conventional extr.d.d.*** d.gital image cor.elation d.r.ng load.ng and.the cr.ss-section analysis of the cor.osion layer. r.vealed.that the r.sid.al p.r.sity and.lar.e str.ined.gr.ins have the d.minant negative effect on the functional p.op.r.ies of the SLM *** the other.hand.one of the p.imar. outcomes of this stud. is that the Sp. consolid.tion method.is ver. effective in the p.ep.r.tion of the W3 biod.gr.d.ble alloy,r.sulting in mater.al with convenient mechanical and.d.gr.d.tion p.op.r.ies that might find.p.actical ap.lications.

关键词： Magnesium Yttr.um p.wd.r.metallur.y Micr.str.ctur. Mechanical str.ngth Cor.osion r.sistance

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