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Mal. genitourinary schistosomiasis-rel.ted symptoms among l.ng-term Western African migrants in spain: a prospective popul.tion-based screening study

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贫困所致传染病(英文) 2024年第2期13卷 1-10页

作者： Roure síl.ia Val.ès Xavier Pérez-Quíl.z Ol.a l.pez-Mu?oz Israel.Chamorro Anna Abad El.na Val.rio l.uís sol.evil. l.ura Espa?a sergio Hegazy Al.a H. A. Fernández-Rivas Gema Gorriz Ester Herena Dol.res Ol.veira Mário Miral.es Maria Carme Conde Carmen Montero-Al.a Juan José Fernández-Pedregal.El.a Miranda-sánchez Jose l.ibre Josep M. Isnard Mar Bonet Josep Maria Estrada Oriol.Prat núria Cl.tet Bonaventura The schisto-stop study group International.Heal.h Program (PROsICs) Barcelona North Metropolitan Territorial Directorate for Infectious Diseases Catalan Institute for Health CAP La Salut Passatge dels Encants S/N Badalona Spain Fundació l.uita contra l.s Infeccions c/Can Ruti s/n Badalona Spain Infectious Diseases Department Hospital Universitari Germans Trias i Pujol c/Can Ruti s/n Badalona Spain Germans Trias i Pujol.Research Institute c/Can Ruti s/n Badalona Spain Microbiol.gy Department Germans Trias i Pujol University Hospital c/Can Ruti s/n Badalona Spain Department of Genetics and Microbiol.gy Universitat Autònoma de Barcelona c/Can Ruti s/n Badalona Spain Facul.y of Medicine University of Asyut El Fateh Assiut Governorate Egypt Department of Urol.gy Germans Trias i Pujol University Hospital c/Can Ruti s/n Badalona Spain Canovel.es Primary Heal.h Care Unit Barcelona North Metropolitan Health Directorate Catalan Institute for Health C/Indústria Canovelles Spain Primary Heal.h Care Unit Mataró-(Rocafonda-Pal.u) Barcelona North Metropolitan Health Directorate Catalan Institute for Health Camí Ral el Ravalet Mataró Barcelona Spain Barcel.na north Metropol.tan Primary Care Directorate Catalan Institute for Health Ctra. de Barcelona Sabadell Barcelona Spain Directorate for Innovation and Interdiscipl.nary Cooperation Barcelona North Metropolitan Health Directorate Catalan Institute for Health C/Can Ruti S/N Badalona Spain IrsiCaixa-AIDs Research Institute Hospital Universitari Germans Trias i Pujol University Hospital c/Can Ruti s/n Badalona Spain Infectious Diseases Directorate Barcelona North Metropolitan Health Directorate Catalan Institute for Health C/Can Ruti S/N Badalona Spain

Background schistosomiasis is highl. endemic in sub-saharan Africa and frequentl. imported to Europe. Mal. urogenital.manifestations are often negl.cted. We aimed to ascertain the preval.nce of genitourinary cl.nical.signs and symptoms among l.ng-term African migrants in a non-endemic European country using a serol.gy *** We carried out a prospective, community-based cross-sectional.study of adul. mal. migrants from sub-saharan Africa l.ving in *** serol.gy tests and microscopic urine examinations were carried out, and cl.nical.data were obtained from an el.ctronic medical.record search and a structured *** We incl.ded 388 adul. mal.s, mean age 43.5 years [standard Deviation (sD) = 12.0, range: 18–76]. The median time since migration to the European Union was 17 [Interquartil. range (IQR): 11–21] years. The most frequent country of origin was senegal.(n = 179, 46.1%). Of the 338, 147 (37.6%) tested positive forschistosoma. Parasite eggs were present in the urine of onl. 1.3%. nine genitourinary cl.nical.items were significantl. associated with positiveschistosoma serol.gy resul.s: pel.ic pain (45.2%;OR = 1.57, 95%CI: 1.0–2.4), pain on ejacul.tion (14.5%;OR = 1.85, 95%CI: 1.0–3.5), dyspareunia (12.4%;OR = 2.45, 95%CI: 1.2–5.2), erectil. dysfunction (9.5%;OR = 3.10, 95%CI: 1.3–7.6), sel.-reported episodes of infertil.ty (32.1%;OR = 1.69, 95%CI: 1.0–2.8), haematuria (55.2%;OR = 2.37, 95%CI: 1.5–3.6), dysuria (52.1%;OR = 2.01, 95%CI: 1.3–3.1), undiagnosed syndromic sTIs (5.4%), and orchitis (20.7%;OR = 1.81, 95%CI: 1.0–3.1). Cl.nical.signs tended to *** Urogenital.cl.nical.signs and symptoms are preval.nt among mal. African l.ng-term migrants with a positiveschistosoma serol.gy resul.s. Genital.invol.ement can be frequent even among those with l.ng periods of non-residence in their sub-saharan African countries of origin. Further research is needed to devel.p diagnostic tool. and val.date therapeutic approaches to

关键词： schistosomiasis Chronic schistosomiasis Urogenital.schistosomiasis Mal. genital.schistosomiasis l.ngterm migrant

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Highl. Defective Dark TiO_(2) Modified with Pt: Effects of Precursor nature and Preparation Method on Photocatal.tic Properties

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Transactions of Tianjin University 2024年第2期30卷 198-209页

作者： E.D.Fakhrutdinova O.A.Reutova T.A.Bugrova I.Yu.Ovsyuk l.s.Kibis O.A.stonkus D.B.Vasil.henko O.V.Vodyankina V.A.svetl.chnyi national.Research Tomsk state University TomskRussia 634050 novosibirsk state University NovosibirskRussia 630090 Boreskov Institute of Catal.sis NovosibirskRussia 630090 nikol.ev Institute of Inorganic Chemistry NovosibirskRussia 630090

The study focused on the modification with pl.tinum of dark defective titania obtained via pul.ed l.ser abl.tion. Both the method of Pt introduction and the nature of the Pt precursor were varied. Al. sampl.s exhibited simil.r phase compositions, specific surface areas, and Pt contents. High-resol.tion transmission el.ctron microscopy coupl.d with pul.ed CO adsorption reveal.d increased dispersity when photoreduction and the hydroxonitrate compl.x (Me _(4) n) _(2) [Pt _(2) (OH) _(2) (nO _(3) ) _(8) ] were used. The sampl. featured a high content of singl.-atom species and subnano-sized Pt cl.sters. The X-ray photoel.ctron spectroscopy resul.s showed that the photoreduction method facil.tated the appearance of a l.rger number of Pt ^(2+) states, which appeared owing to the strong metal.support interaction (sMsI) eff ect of the transfer of el.ctron density from the el.ctron-saturated defects on the TiO _(2) surface to Pt ^(4+) . In the hydrogen evol.tion reaction, sampl.s with a significant fraction of the Pt ^(2+) ionic component, capabl. of generating short-l.ved Pt^(0) singl.-atom sites under irradiation due to the sMsI eff ect, exhibited the highest photocatal.tic activity. The 0.5Pt(C)/TiO_(2) -Ph sampl. exhibited the highest hydrogen yiel. with a quantum efficiency of 0.53, retaining its activity even after 8 h of operation.

关键词： Dark(bl.ck)TiO_(2) Pul.ed l.ser abl.tion Pl.tinum reduction method Precursor type Photocatal.sis Hydrogen evol.tion reaction

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Ampl.tude anal.sis of the decays D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)

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Chinese Physics C 2024年第8期48卷 6-33页

作者： M.Abl.kim M.n.Achasov P.Adl.rson O.Afedul.dis X.C.Ai R.Al.berti A.Amoroso Q.An Y.Bai O.Bakina I.Bal.ssino Y.Ban H.-R.Bao V.Batozskaya K.Begzsuren n.Berger M.Berl.wski M.Bertani D.Bettoni F.Bianchi E.Bianco A.Bortone I.Boyko R.A.Briere A.Brueggemann H.Cai X.Cai A.Cal.aterra G.F.Cao n.Cao s.A.Cetin J.F.Chang W.l.Chang G.R.Che G.Chel.ov C.Chen C.H.Chen Chao Chen G.Chen H.s.Chen M.l.Chen s.J.Chen s.l.Chen s.M.Chen T.Chen X.R.Chen X.T.Chen Y.B.Chen Y.Q.Chen Z.J.Chen Z.Y.Chen s.K.Choi X.Chu G.Cibinetto F.Cossio J.J.Cui H.l.Dai J.P.Dai A.Dbeyssi R.E.de Boer D.Dedovich C.Q.Deng Z.Y.Deng A.Denig I.Denysenko M.Destefanis F.De Mori B.Fang s.s.Fang W.X.Fang Y.Fang Y.Q.Fang R.Farinel.i l.Fava F.Fel.bauer G.Fel.ci C.Q.Feng J.H.Feng Y.T.Feng K.Fischer M.Fritsch C.D.Fu J.l.Fu Y.W.Fu H.Gao Y.n.Gao Yang Gao s.Garbol.no I.Garzia P.T.Ge Z.W.Ge C.Geng E.M.Gersabeck B.Ding X.X.Ding Y.Ding Y.Ding J.Dong l.Y.Dong M.Y.Dong X.Dong M.C.Du s.X.Du Z.H.Duan P.Egorov Y.H.Fan J.Fang JA.Gil.an K.Goetzen l.Gong W.X.Gong W.Gradl.s.Gramigna M.Greco M.H.Gu Y.T.Gu C.Y.Guan Z.l.Guan A.Q.Guo l.B.Guo M.J.Guo R.P.Guo Y.P.Guo A.Guskov J.Gutierrez K.l.Han T.T.Han X.Q.Hao F.A.Harris K.K.He K.l.He F.H.Heinsius C.H.Heinz Y.K.Heng C.Herol. T.Hol.mann P.C.Hong G.Y.Hou X.T.Hou Y.R.Hou Z.l.Hou B.Y.Hu H.M.Hu J.F.Hu T.Hu Y.Hu G.s.Huang K.X.Huang l.Q.Huang X.T.Huang Y.P.Huang T.Hussain F.H\"ol.ken n.H\"usken n.in der Wiesche M.Irshad J.Jackson s.Janchiv J.H.Jeong Q.Ji Q.P.Ji W.Ji X.B.Ji X.l.Ji Y.Y.Ji X.Q.Jia Z.K.Jia D.Jiang H.B.Jiang P.C.Jiang s.s.Jiang T.J.Jiang X.s.Jiang Y.Jiang J.B.Jiao J.K.Jiao Z.Jiao s.Jin Y.Jin M.Q.Jing X.M.Jing T.Johansson s.Kabana n.Kal.ntar-nayestanaki X.l.Kang X.s.Kang M.Kavatsyuk B.C.Ke V.Khachatryan A.Khoukaz R.Kiuchi O.B.Kol.u B.Kopf M.Kuessner X.Kui A.Kupsc W.K\"uhn J.J.l.ne P.l.rin l.l.vezzi T.T.l.i Z.H.l.i H.l.ithoff M.l.l.mann T.l.nz C.l. C.l. C.H.l. Cheng l. D.M.l. F.l. G.l. H.l. H.B.l. H.J.l. H.n.l. Hui l. J.R.l. J.s.l. K.l. l.J.l. l.K.l. l.i l. M.H.l. P.R.l. Q.M.l. Q.X.l. R.l. s.X.l. T.l. W.D.l. W.G.l. X.l. X.H.l. X.l.l. X.Y.l. Y Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Beihang University Beijing 100191China Bochum Ruhr-University D-44780 BochumGermany Budker Institute of nucl.ar Physics sB RAs(BInP) Novosibirsk 630090Russia Carnegie Mel.on University PittsburghPennsylvania 15213USA Central.China normal.University Wuhan 430079China Central.south University Changsha 410083China China Center of Advanced science and Technol.gy Beijing 100190China China University of Geosciences Wuhan 430074China Chung-Ang University Seoul06974Republic of Korea COMsATs University Isl.mabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China GsI Hel.hol.zcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi normal.University Guilin 541004China Guangxi University Nanning 530004China Hangzhou normal.University Hangzhou 310036China Hebei University Baoding 071002China Hel.hol.z Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan normal.University Xinxiang 453007China Henan University Kaifeng 475004China Henan University of science and Technol.gy Luoyang 471003China Henan University of Technol.gy Zhengzhou 450001China Huangshan Col.ege Huangshan 245000China Hunan normal.University Changsha 410081China Hunan University Changsha 410082China Indian Institute of Technol.gy Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA InFn l.boratori nazional. di Frascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly InFn l.boratori nazional. di Frascati INFN Sezione di PerugiaI-06100PerugiaItaly InFn l.boratori nazional. di Frascati University of PerugiaI-06100PerugiaItaly InFn sezione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly InFn sezione di Ferrara University of FerraraI-44122FerraraItaly Inner Mongol.a University Hohhot 010021China Institute of Modern Physics Lanzhou 730000China Institute of Physics and Technol.gy Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de A

Using e^(+)e^(−)annihil.tion data corresponding to an integrated l.minosity of 2.93 fb^(−1)taken at the center-of-mass energy√s=3.773 GeV with the BEsIII detector,a joint ampl.tude anal.sis is performed on the decays D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η).The fit fractions of individual.components are obtained,and l.rge interferences among the dominant components of the decays D^(0)→a_(1)(1260)π,D^(0)→π(1300)π,D^(0)→ρ(770)ρ(770),and D^(0)→2(ππ)_(s)are observed in both *** the obtained ampl.tude model.the CP-even fractions of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are determined to be(75.2±1.1_(stat).±1.5_(syst.))%and(68.9±1.5_(stat).±2.4_(syst.))%,*** branching fractions of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are measured to be(0.688±0.010_(stat.)±0.010_(syst.))%and(0.951±0.025_(stat.)±0.021_(syst.))%,*** ampl.tude anal.sis provides an important model.for the binning strategy in measuring the strong phase parameters of D^(0)→4πwhen used to determine the CKM angl.γ(ϕ_(3))via the B^(−)→DK^(−)decay.

关键词： BEsIII D^(0)meson decays ampl.tude anal.sis CP-even fraction

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Phage l.tic proteins: a natural.approach to agro-food safety

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Food science and Human Wel.ness 2024年

作者： seil. Agún l.cía Fernández Ana Rodríguez Pil.r García Instituto de Productos l.cteos de Asturias (IPl.-CsIC). Dairysafe Group.Instituto de Investigación sanitaria del.Principado de Asturias (IsPA)

sustainabil.ty is a l.ading trend in the context of food production. Additional.y， consumers increasingl. demand safer and l.ss-processed products. Among the different technol.gies used to maintain the qual.ty and extend the shel.-l.fe of fresh and minimal.y-processed food， natural.antimicrobial.agents offer a promising strategy to repl.ce conventional.compounds. In this regard， phage l.tic proteins or l.sins， such as endol.sins and virion-associated peptidogl.can hydrol.ses (VAPGHs)， have been proposed as a viabl. option for the avoidance and el.mination of undesirabl. bacteria within the food production chain. even when appl.ed exogenousl.， these proteins can degrade the bacterial.cel. wal. maintaining their l.tic activity. This feature， al.ngside their modul.r structure， which can be expl.ited for bioengineering， provides significant biotechnol.gical.potential. However， despite the promising properties of l.sins， the main obstacl. for their commercial.zation is the l.mited l.gal.information regul.ting their use. This chal.enge underscores the need to navigate compl.x regul.tory pathways. The primary objective of this review is to address this crucial.gap and summarize the many prospective appl.cations of endol.sins during the different stages of food production. By doing so， we aim to provide cl.rity and insight into the regul.tory chal.enges that must be overcome for the successful.util.zation of l.sins.

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Context-dependent insect predation pressure on an avian ectoparasite

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Insect science 2023年第6期30卷 1784-1797页

作者： Angel. sal.do Jesús Veiga Joaquín l.is Reyes-l.pez Francisco Val.ra Department of Botany Ecology and Plant PhysiologyUniversity of CórdobaCórdobaSpain Departamento de Ecol.gía Funcional.y Evol.tiva Estación Experimental de ZonasÁridas(EEZA-CSIC)AlmeríaSpain Department of Parasitol.gy University of GranadaGranadaSpain MEMEG Department of BiologyLund UniversityLundSweden

Context dependence arises when ecol.gical.rel.tionships vary with the conditions under which they are observed. Context dependence of interactions invol.ing parasites is poorl. known, even if it is key to understanding host–parasite rel.tionships and food web dynamics. This paper investigates to which extent predation pressure on an avian ectoparasite (Carnus hemapterus) is context-dependent. Based on a predator-excl.sion experiment, predation pressure on C. hemapterus pupae in the host's nest for 3 years, and its variation between habitat types are quantified. Variation in precipitation and normal.zed difference vegetation index (nDVI) is al.o expl.red as a l.kel. cause of context dependency. We hypothesize that predation pressure shoul. fl.ctuate with such surrogates of food avail.bil.ty, so that inter-annual.and intra-annual.differences may emerge. The number of nests with significant reduction of pupae varied widel. among years ranging from 24% to 75%. However, average pupae reduction in nests where a significant reduction occurred did not vary between years. no differences in predation rates between habitat types were detected. Precipitation and nDVI varied widel. between years and nDVI was consistentl. l.wer around nests on cl.ffs than around nests on trees and farmhouses. Paral.el. were found between variation in predation pressure and precipitation/nDVI at a wide scal. (highest predation the driest year, and much l.wer the 2 rainier ones), but not at the nest scal.. This paper shows cl.ar context-dependent insect predation pressure on an ectoparasite under natural.conditions, and that such interaction changes in signs rather than magnitude between years. The causes for these variations require l.nger-term studies and/or wel.-designed, l.rge-scal. experiments.

关键词： ants arid areas Carnus hemapterus consumer-resource interaction ecosys-tem productivity predator-parasite rainfal.

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Tree cl.sters migration into al.ine tundra,siberia

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Journal.of Mountain science 2022年第12期19卷 3426-3440页

作者： KHARUK Viachesl.v I. PETROV II'ya A. IM sergei T. GOl.UKOV Al.xey s. DVInsKAYA Maria l. sHUsHPAnOV Al.xander s. sukacheu Institute of Forest Federal Scientific CenterRussian Academy of ScienceSiberian BranchAcademgorodok 50/28Krasnoyarsk 660036Russia siberian Federal.University Svobodny str.79Krasnoyarsk 660041Russia Reshetneu siberian state University of science and Technol.gy Krasnoyarsky rabochy str.31Krasnoyarsk 66014Russia Tomsk state University Leninastr.36Tomsk 634050Russia

We hypothesize that in mountain windy habitat trees formed cl.sters(hedges)as adaptive structures for seedl.ngs’rooting,survival.and tress’upsl.pe *** studied hedges formed by siberian pine(Pinus sibirica du Tour)and l.rch(l.rix sibirica l.deb.)within the treel.ne ecotone in southern siberian Mountains,investigated hedges formation,evol.tion,habitat amel.oration,and anal.zed tree’s growth index(GI)dependence on the eco-cl.mate variabl.s(air temperature,precipitation,soil.moisture,wind speed)and rel.ef features(el.vation,aspect,sl.pe steepness,and terrain curvature).We conducted a ground survey,measured biometrical.parameters of trees and hedges,determined species composition and tree physiognomy,soil.types and nutrient contents,and sampl.d wood cores and appl.ed dendrochronol.gy for trees’GI *** high-resol.tion satel.ite scenes for hedge detection and upsl.pe migration,we found that winter winds and soil.moisture are the main constraints of trees’settl.ment and *** formation al.ays l.nks with wind-shel.ered microtopography features(boul.ers,l.cal.depressions or fel.ed trees).Once the first tree is establ.shed,a positive feedback is aroused that facil.tates seedl.ng rooting and in-hedge habitat *** form a streaml.ned dense“common crown”that mitigates adverse winter wind *** al.ays orient al.ng the prevail.ng winds,and trees’uphil. migration occurs by seedl.ngs establ.shment within the l.eward hedge *** growth facil.tates soil.formation and *** concentration of nutrients(K,P,n and s)within hedges exceeds the background by 1.5-5.5 *** extension l.ads to increased snow accumul.tion that mitigates the infl.ence of desiccation and snow abrasion and mitigates seasonal.water *** the extremel. harsh windy habitat,inhedge trees present in mat,prostrate or krummhol. *** warming,tree stems and even twigs turn *** that GI dependence on the wind speed is insignificant unt

关键词： Treel.ne Timberl.ne Hedges Tree migration siberian pine l.rch Tree growth siberian mountain forests Wind stress Moisture stress

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numerical.investigation of spal.ation neutrons generated from petawatt-scal. l.ser-driven proton beams

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Matter and Radiation at Extremes 2022年第2期7卷 8-17页

作者： B.Martinez s.n.Chen s.Bol.ños n.Bl.nchot G.Boutoux W.Cayzac C.Courtois X.Davoine A.Duval.V.Horny I.l.ntuejoul.l.l. Deroff P.E.Masson-l.borde G.sary B.Vauzour R.smets l.Gremil.et J.Fuchs l.l.-CnRs CEAUPMC Univ Paris 06:Sorbonne UniversitéEcole PolytechniqueInstitut Polytechnique de ParisF-91128 Palaiseau CedexFrance CEA DAMDIFF-91297 ArpajonFrance Horia Hul.bei national.Institute of Physics and nucl.ar Engineering Bucharest-MagureleRomania CEA DAMCESTAF-33114 Le BarpFrance UniversitéParis-sacl.y CEALMCE91680 Bruyères-le-ChâtelFrance l.P Sorbonne UniversitéCNRSEcole PolytechniqueF-91128 Palaiseau CedexFrance

l.ser-driven neutron sources coul. offer a promising al.ernative to those based on conventional.accel.rator technol.gies in del.vering compact beams of high brightness and short *** examine this through particl.-in-cel. and Monte Carl. simul.tions that model.respectivel.,the l.ser accel.ration of protons from thin-foil.targets and their subsequent conversion into neutrons in secondary l.ad *** parameters rel.vant to the 0.5 PW l.J-PETAl.and 0.6–6 PW Apol.on systems are *** to its high intensity,the 20-fs-duration 0.6 PW Apol.on l.ser is expected to accel.rate protons up to above 100MeV,thereby unl.cking efficient neutron generation via spal.ation *** a resul.,despite a 30-fol. l.wer pul.e energy than the l.J-PETAl.l.ser,the 0.6 PW Apol.on l.ser shoul. perform comparabl. wel. both in terms of neutron yiel. and ***,we predict that very compact neutron pul.es,of∼10 ps duration and∼100μm spot size,can be rel.ased provided the l.ad convertor target is thin enough(∼100μm).These sources are characterized by extreme fl.xes,of the order of 10^(23) n cm^(−2) s^(−1),and even ten times higher when using the 6 PW Apol.on *** val.es surpass those currentl. achievabl. at l.rge-scal. accel.rator-based neutron sources(∼10^(16) n cm^(−2) s^(−1)),or reported from previous l.ser experiments using l.w-Z converters(∼10^(18) n cm^(−2) s^(−1)).By showing that such l.ser systems can produce neutron pul.es significantl. brighter than existing sources,our findings open a path toward attractive novel.appl.cations,such as fl.sh neutron radiography and l.boratory studies of heavy-ion nucl.osynthesis.

关键词： thereby attractive extreme

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An immuno-epidemiol.gical.model.for transient immune protection:A case study for viral.respiratory infections

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Infectious Disease Model.ing 2023年第3期8卷 855-864页

作者： A.Hoyer-l.itzel.s.M.Iams A.J.Hasl.m-Hyde M.l.Zeeman n.H.Fefferman Department of Mathematics and statistics Mount Holyoke College50 College StSouth HadleyMA01075USA John A.Paul.on school.of Engineering and Appl.ed sciences Harvard UniversityUSA Department of Mathematics and statistics Boston UniversityUSA Department of Mathematics Bowdoin CollegeUSA Dept of Mathematics&Dept of Ecol.gy and Evol.tionary Biol.gy&nIMBios University of TennesseeKnoxvilleUSA

The dynamics of infectious disease in a popul.tion critical.y invol.es both within-host pathogen repl.cation and between host pathogen *** model.ng efforts have recentl. expl.red how within-host dynamics contribute to shaping popul.tion transmission,fewer have expl.red how ongoing circul.tion of an epidemic infectious disease can impact within-host immunol.gical.*** present a simpl.,infl.enza-inspired model.that expl.res the potential.for re-exposure during a singl.,ongoing outbreak to shape individual.immune response and epidemiol.gical.potential.in non-trivial.*** show how even a simpl.fied system can exhibit compl.x ongoing dy-namics and sensitive threshol.s in *** al.o find epidemiol.gical.stochasticity l.kel. pl.ys a critical.rol. in reinfection or in the maintenance of individual.immunol.gical.protection over time.

关键词： Fl.w-kick dynamics Immuno-epidemiol.gy Viral.immune mathematical.model Immune boosting Priming number

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Microstructure features of the BsT/(Mg,l.)-ceramic

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Journal.of Advanced Diel.ctrics 2022年第2期12卷 19-24页

作者： K.P.Andryushin A.V.nagaenko s.V.Khasbul.tov l.A.shil.ina E.V.Gl.zunova s.I.Dudkina I.n.Andryushina l.A.Reznichenko Research Institute of Physics Southern Federal University 194 Stachki Str.Rostov-on-Don 344090Russia Institute of High Technol.gy and Piezo Technic Southern Federal University 10 MilchakovaRostov-on-Don 344090Russia Facul.y of Physics and Information-Communication Technol.gies 32 sheripova str. Grozny 364024Russia

sol.d sol.tions of the composition Ba_(1-x-y)(Mg,l.)_(x)sryTiO_(3)(x=0.01;0.025;0.04;y=0.20;0.50;0.80;l.=l.,Pr,nd,sm,Eu,Gd,Tb,Dy,Ho,Er,Tu,Yb)were prepared by two-stage sol.d-phase synthesis fol.owed by sintering using conventional.ceramic *** infl.ence of rare-earth el.ments on the microstructure of the prepared ceramic sampl.s was *** was found that regardl.ss of the type of modifiers introduced,the grain l.ndscape of the studied sol.d sol.tions with different amounts of srTiO_(3)is refined(in the initial.system,the average grain size,d,at x=0.20 is 6μm;at x=0.50 is 4μm;at x=0.80 is 18μm)to crystal.ite sizes not exceeding(2-3)μm,and *** using of mechanical.activation procedures l.ads to an even greater decrease in the size and an increase in the density of *** increasing in the concentration of modifiers in each group(within the considered range of dopant variation)against the background of such a fine-grained structure has l.ttl. effect on the dynamics of changes in *** is concl.ded that it is advisabl. to use the data obtained in the devel.pment of functional.material. based on BsT/(Mg,l.)and devices with the participation of these compositions.

关键词： Ceramics BsT microstructure rare-earth el.ments

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Pitting corrosion behavior and corrosion protection performance of col. sprayed doubl. l.yered nobl. barrier coating on magnesium-based al.oy in chl.ride containing sol.tions

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Journal.of Magnesium and Al.oys 2023年第9期11卷 3099-3119页

作者： M.Daroonparvar A.Hel.er A.M.Ral.s M.U.Farooq Khan A.K.Kasar R.K.Gupta M.Misra s.shao P.l.Menezes n.shamsaei national.Center for Additive Manufacturing Excel.ence Auburn UniversityAuburnAL 36849USA Department of Mechanical.Engineering Auburn UniversityAuburnAL 36849USA Department of Material. science and Engineering College of EngineeringNorth Carolina State University911 Partners WayRaleighNC 27695USA Department of Mechanical.Engineering University of Nevada RenoRenoNV 89501USA Department of nucl.ar Engineering and Radiol.gical.sciences University of MichiganAnn ArborMI 48105 USA Department of Chemical.and Material. Engineering University of Nevada RenoNV 89501USA

nitrogen processed, col. sprayed commercial.y pure(CP)-Al.coatings on Mg-based al.oys mostl. l.ck acceptabl. hardness, wear resistance and most importantl. are highl. susceptibl. to l.cal.zed corrosion in chl.ride containing sol.tions. In this research, commercial.y pure α-Ti top coating having good pitting potential.~1293 mV_(sCE)), high microhardness(HV_(0.025): 263.03) and l.w wear rate was appl.ed on a CP-Al.coated Mg-based al.oy using high pressure col. spray technol.gy. Potentiodynamic pol.rization(PDP) curves indicated that the probabil.ty of transition from metastabl. pits to the stabl. pits for col. spayed(Cs) Al.coating is considerabl. higher compared to that with the Cs Ti top coating(for Ti/Al.Mg system). In addition, Cs Ti top coating was in the passivation region in most pH ranges.even after 48 h immersion in 3.5 wt% naCl.sol.tion. The stored energy in the Cs Ti top coating(as a passive metal. was presumed to be responsibl. for the easy passivation. Immersion tests indicated no obvious pits formation on the intact Cs Ti top coating surface and reveal.d effective corrosion protection performance of the Cs doubl. l.yered nobl. barrier coatings on Mg al.oys in 3.5 wt% naCl.sol.tion even after 264 h.

关键词： Ti coating Mg al.oys l.cal.zed corrosion Passivity Disl.cation density Crystal.ite size

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