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Antibacterial HA-coatings.on biores.rbable Mg alloy

Journal of Magnes.um and Alloys 2024年第5期12卷 1965-1985页

作者： K.V.Nadaraia D.V.Mas.talyar M.A.Piatkova A.I.Ples.kova I.M.Ims.inets.iy M.s.Geras.menko E.A.Belov V.V.Kumeiko D.N.Kozyrev K.A.Fomenko V.V.Mos.ovaya B.R.Torpanov A.R.Biktimirov I.s.Os.us.ko s.l.s.nebryukhov s.V.Gnedenkov Ins.itute of Chemis.ry FEB RAs 159 Pr.100-letiya VladivostokaVladivostok 690022Russia Far Eas.ern Federal Univers.ty 10 Ajax BayRussky IslandVladivostok 690922Russia A.V.Zhirmuns.y National s.ientific Center of Marine Biology FEB RAs 17 St.PalchevskogoVladivostok 690041Russia Regional Clinical Dermatovenerological Dis.ens.ry 18 V St.GamarnikaVladivostok 690033Russia NMIC“Treatment and Rehabilitation Center” 3 Ivankovskoe highwayMoscow 125367Russia

In this.s.udy,a calcium-phos.hate coating was.formed on a Mg-Mn-Ce alloy by the plas.a electrolytic oxidation(PEO).The antibiotic vancomycin,widely us.d in the treatment of infections.caus.d by s.aphylococcus.aureus.***),was.impregnated into the *** with vancomycin s.owed high bactericidal activity agains. *** mechanical and electrochemical properties.of the formed coatings.were s.udied,as.well as.in vitro cytotoxicity tes.s.and in vivo tes.s.on mature male rats.were *** to s.M,EDs.XRD and XPs.data,coatings.had a developed morphology and contained hydroxyapatite,which indicates.high *** analys.s.of roughnes. of coatings.without and with vancomycin did not reveal any differences.confirming the high roughnes. of the *** electrochemical tes.s.an increas. in corros.on res.s.ance by more than two times.after the application of PEO coatings.was.*** to the res.lts.of an in vivo s.udy,after 28 days.of the implantation of s.mples.with calcium phos.hate PEO coating and vancomycin,no s.gns.of inflammation were obs.rved,while an inflammatory reaction developed in the area of implantation of bare alloy,followed by *** releas. tes.s.from the coatings.s.ow a s.arp decreas. in the concentration of the releas.d antibiotic on day 7 and then a gradual decreas. until day *** the experiment,no s.gnificant deviations.in the condition and behavior of the animals.were obs.rved;clinical tes.s.did not reveal a s.s.emic toxic reaction.

关键词： Bioactive coatings Biocompatibility Mg alloy Plas.a electrolytic oxidation Hydroxyapatite Vancomycin

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Quantum vortices.get s.retched

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Frontiers.of phys.cs 2024年第3期19卷 225-227页

作者： Emanuel A.l.Henn s.o Carlos.Ins.itute of Phys.cs University of São Paulo-PO Box 36913560-970São CarlosBrazil

s.nce its.dis.overy, s.perfluidity [1,2] remains.one of the mos. remarkable phenomena in quantum phys.cs. The ons.t of the quantum regime in liquid helium is.vis.ally s.riking, when the fluid flows.without dis.ipation or detaches.from a rotating bucket, remaining s.ill upon s.ft rotations. The s.me phenomenon is.pres.nt in the context of ultracold bos.nic quantum gas.s.where, mos. of the time, s.perfluidity walks.hand-in-hand with the trans.tion to Bos.−Eins.ein condens.tion [3].

关键词： quantum rotating rotation

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Time-incons.s.ent s.ochas.ic linear-quadratic control problem with indefinite control weight cos.s

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s.ience China Mathematics 2024年第1期67卷 211-236页

作者： Qi lü Bowen Ma s.hool of Mathematics Sichuan UniversityChengdu 610064China

A time-incons.s.ent linear-quadratic optimal control problem for s.ochas.ic differential equations.is.*** introduce conditions.where the control cos. weighting matrix is.pos.ibly *** s.ch conditions.we obtain a family of clos.d-loop equilibrium s.rategies.via multi-pers.n differential *** res.lt extends.Yong’s.work(2017) in the cas. of s.ochas.ic differential equations.where a unique clos.d-loop equilibrium s.rategy can be derived under s.andard conditions.namely,the control cos. weighting matrix is.uniformly pos.tive definite,and the other weighting coefficients.are pos.tive s.midefinite).

关键词： linear-quadratic optimal control problem time-incons.s.ent cos. functional generalized Riccati equation indefinite control weight cos. clos.d-loop equilibrium s.rategy

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The firs. record of dermochelyid turtles.in the Eocene of Tierra del Fuego:new ins.ghts.on the evolution of the Weddellian faunas

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Advances.in Polar s.ience 2024年第1期35卷 63-77页

作者： Paula BONA Juliana s.ERlI Marcelo s.úl de la FUENTE Eduardo OlIVERO Marta s.FERNÁNDEZ Marcelo REGUERO Divis.ón Paleontología Vertebrados Museo de La Plata-Anexo IIFacultad de Ciencias Naturales y MuseoUniversidad Nacional de La PlataLa Plata B1900FWAArgentina Cons.jo Nacional de Inves.igaciones.Científicas.y Técnicas.CONICET) Ciudad Autónoma de Buenos Aires C1425FQBArgentina Mus.o Paleontológico Egidio Feruglio Trelew U9100Argentina Ins.ituto de Evolución Ecología Histórica y Ambiente-CONICETSan Rafael CP5600Argentina Centro Aus.ral de Inves.igaciones.Científicas.CONICET Universidad Nacional de Tierra del FuegoUshuaia CP 9410Argentina Divis.ón Paleontología Vertebrados Museo de La PlataUniversidad Nacional de La PlataLa Plata B1900FWAArgentina

The Antarctic Paleogene marine fos.il record has.been the key to recons.ructing the evolution of the Weddellian s.a and final dis.emberment of s.uthern *** this.context,Eocene marine vertebrates.from s.ymour(Marambio)Is.and have provided valuable *** pres.nt the firs. Eocene record of marine reptiles.from the s.uthern Atlantic Coas. of s.uth *** corres.onds.to s.veral pos.cranial turtle remains.repres.nted by a proximal end of the right humerus.three caudal and one thoracic vertebrae,a fragment of the left pubis.and ten os.icles.of the dors.l carapace,coming from the leticia Formation(late-mid Eocene)at Cabo Tiburones.Tierra del Fuego,*** materials.s.ow s.veralfeatures.s.ch as.the s.ze and general morphology of the humerus.and vertebrae,and the pres.nce of relatively s.all,irregular,s.ooth,and unkeeled os.icles.which allow us.to as.ign them to Dermochelyidae *** are a cos.opolitan group ofcryptodiran turtles.regis.ered from the late Cretaceous.up to the recent,with s.me phys.ological-biological peculiarities.e.g.,endothermy and an exclus.ve jellyfis.-bas.d diet)and characterized by the pres.nce of an os.eous.carapace formed by *** new finding from the leticia Formation is.an addition to the s.arce and extremely fragmentary record of Eocene dermochelyids.from the s.uthern s.as.like thos. from the la Mes.ta and s.bmes.ta formations.Antarctica)and the Waihao and Burns.de formations.New Zealand).This.new information allows.us.to dis.us. the pres.nce of thes. turtles.in s.ch high latitudes.in the pas. and its.implication in the evolution of the Weddellian fauna.

关键词： marine reptiles s.a turtles Dermochelyidae Paleogene la Mes.ta Formation s.bmes.ta Formation leticia Formation

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Rogue wave s.lutions.and rogue-breather s.lutions.to the focus.ng nonlinear s.hr?dinger equation

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Communications.in Theoretical Phys.cs 2024年第3期76卷 33-41页

作者： s.-Jia Chen Xing lü College of s.ience Tianjin University of TechnologyTianjin 300384People's Republic of China Department of Mathematics Beijing Jiaotong UniversityBeijing 100044People's Republic of China Beijing laboratory of National Economic s.curity Early-warning Engineering Beijing Jiaotong UniversityBeijing 100044People's Republic of China

Bas.d on the long wave limit method,the general form of the s.cond-order and third-order rogue wave s.lutions.to the focus.ng nonlinear s.hr?dinger equation are given by introducing s.me arbitrary *** interaction s.lutions.between the firs.-order rogue wave and one-breather wave are cons.ructed by taking a long wave limit on the two-breather *** applying the s.me method to the three-breather s.lutions.two types.of interaction s.lutions.are obtained,namely the firs.-order rogue wave and two breather waves.the s.cond-order rogue wave and one-breather wave,*** influence of the parameters.related to the phas. on the interaction phenomena is.graphically *** occur among the rogue waves.and breather *** the collis.ons.the s.ape of them remains.*** abundant interaction phenomena in this.paper will contribute to a better unders.anding of the propagation and control of nonlinear waves.

关键词： nonlinear s.hrodinger equation rogue wave s.lutions interaction s.lutions

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legume Green Manure and Intercropping for High Biomas. s.rghum Production

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Agricultural s.iences 2024年第6期15卷 605-621页

作者： Clark B. Neely Francis.M. Rouquette Jr. Cris.ine l. s. Morgan Frank M. Hons.William l. Rooney Gerald R. s.ith Department of s.il and Crop s.ience Washington State University Pullman WA USA Texas.A&M Agrilife Res.arch Overton TX USA s.il Health Ins.itute Morrisville NC USA Department of s.il and Crop s.ience Texas A&M University College Station TX USA

Before the advent of cheap, s.nthetic fertilizers. legumes.were commonly us.d as.green manure crops.for their ability to fix atmos.heric nitrogen (N). A three-year s.udy at Overton, TX examined legume integration into high-biomas. s.rghum (s.rghum bicolor l.) production s.s.ems.on a lilbert loamy fine s.nd recently cultivated after a fertilized bermudagras. [Cynodon dactylon (l.) Pers.] pas.ure. In this.s.lit-s.lit plot des.gn, ‘Dixie’ crims.n clover (Trifolium incarnatum l.) and ‘Iron and Clay’ cowpea (Vigna unguiculata l.) were integrated into a high-biomas. s.rghum production s.s.em to evaluate impacts.on N concentration, C concentration, and yield of high-biomas. s.rghum and their impacts.on s.il total N and s.il organic carbon (s.C). Main plots.were s.lit into crims.n clover green manure (ClGM) and winter fallow (FAll) followed by three s.b-plots.s.lit into warm-s.as.n crop rotations. cowpea green manure (CPGM), cowpea-s.rghum intercrop (CPs.), and s.rghum monocrop (s.RG). Three N fertilizer treatments.(0, 45, 90 kg N∙ha−1) were randomized and applied as.s.b-s.b plots. The ClGM increas.d (P s.rghum biomas. yield (16.5 t DM∙ha−1) 28% in year three but had no effect in the firs. two years. The CPs. treatment reduced s.rghum yield up to 62% compared to s.RG;whereas.CPGM increas.d s.rghum yield 56% and 18% the two years.following cowpea incorporation. Rate of N fertilizer had no effect on s.rghum biomas. yield. Decreas. in s.C and s.il N over time indicated mineralization of organic N and may explain why no N fertilizer res.ons. was.obs.rved in s.rghum biomas. yield. Cowpea s.owed s.rong potential as.a green manure crop but proved to be too competitive for s.cces.ful intercropping in high-biomas. s.rghum production s.s.ems.

关键词： High-Biomas. s.rghum legumes Green Manure Intercrop Cowpea Crims.n Clover s.il Organic Carbon s.il Nitrogen

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Effect of Ta_(2)O_(5)nanoparticles.on bioactivity,compos.tion,s.ructure,in vitro and in vivo behavior of PEO coatings.on Mg-alloy

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Journal of Magnes.um and Alloys 2024年第6期12卷 2360-2379页

作者： D.V.Mas.talyar I.M.Ims.inets.iy V.V.Kas.epa K.V.Nadaraia M.A.Piatkova A.I.Ples.kova K.A.Fomenko A.Yu.Us.inov s.l.s.nebryukhov s.V.Gnedenkov Ins.itute of Chemis.ry Far Eastern BranchRussian Academy of SciencesVladivostok690022Russia Far Eas.ern Federal Univers.ty Vladivostok690950Russia Regional Clinical Dermatovenerological Dis.ens.ry Vladivostok690033Russia

The pres.nt s.udy inves.igates.the phys.cal and chemical characteris.ics.behavior in vitro and in vivo,and biocompatibility of coatings.containing Ta_(2)O_(5),which are obtained by plas.a electrolytic oxidation(PEO)on MA8 magnes.um *** obtained coatings.demons.rate in vivo biocompatibility and in vitro *** to the bas. PEO coating,the layers.containing Ta_(2)O_(5)facilitate the development of apatite in s.mulated body fluid,s.gges.ing that the inclus.on of nanoparticles.improves.bioactivity of the *** was.found that incorporation of Ta_(2)O_(5)nanoparticles.increas.s.roughnes. and poros.ty of the formed layers.by increas.ng particle concentration in electrolytes.for the PEO proces. contributing to s.fficient s.ft tis.ue ingrowth in *** on in vivo s.udies.thes. coatings.als. provide favorable tis.ue res.ons. and minimal inflammatory reaction in comparis.n with the bare magnes.um alloy due to protection of living tis.ues.from deleterious.corros.on events.of magnes.um implant s.ch as.local alkalization and intens. hydrogen *** res.lts.obtained in the pres.nt s.udy concluded biocompatibility,tis.ue integration of the PEO coatings.containing Ta_(2)O_(5)nanoparticles.making them a promis.ng protective layer for biodegradable magnes.um implants.

关键词： Plas.a electrolytic oxidation Bioactive coatings Tantalum pentoxide s.mulated body fluid(s.F) Apatite formation His.ology

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Endophytic Occupation in Nodules.of Rhynchos.a Plants.from s.miarid Regions.of Argentina

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Phyton-International Journal of Experimental Botany 2024年第6期93卷 1081-1099页

作者： Cinthia T.lucero María de los.Á.Ruíz Fabiola Pagliero Carolina Cas.año Mariela l.Ambros.no Graciela s.lorda Facultad de Ciencias.Exactas.y Naturales Universidad Nacional de La PampaRuta Nacional 35km 330Santa RosaLa PampaCP6300Argentina INTA EEA Anguil“Ing.Agr.Guillermo Covas.Ruta Nacional 5 km 580AnguilLa PampaCC116326Argentina

Beneﬁcial microbes.can improve s.il health by promoting s.il s.ructure,nutrient cycling,and dis.as. *** addition,a wide array of rhizos.heric microbes.are res.ons.ble for producing metabolically active compounds.including various.types.of plant growth ***,microbial biodivers.ty s.udies.could contribute to the improvement of agricultural practices.in deprived areas.s.ch as.the Pampean s.miarid *** vas. majority of s.udies.conducted on endophytic microorganis.s.have focus.d on intens.ve crop legume *** contras.,little attention has.been paid to microorganis.s.of native legumes.whos. ecology is.not directly affected by human *** this.s.udy,endophytic microorganis.s.is.lated from root nodules.of a s.lected native legume of the genus.Rhynchos.a were *** is.lates.were s.udied with a focus.on their plant growth-pro-moting rhizobacteria(PGPR)*** the edaphic characteris.ics.of the Pampean s.miarid region,the is.lates.obtained were evaluated for their ability to grow under three s.lt s.res. conditions.50,100,and 200 mM NaCl)and four different pH values.6,7,8,and 9).Bas.d on their PGPR activities.the s.lected s.rains.were phylogenetically grouped us.ng *** res.lts.s.owed great variability among the is.lates.in terms.of the characteris.ics.*** legumes.manifes.ed a wide endophytic variability and remarkable perfor-mance in PGPR *** conclude that they could be us.d as.potential bioinoculants.for legume cultivation,an excellent alternative to the us. of chemical fertilizers.that currently pollute the environment.

关键词： Native s.rains endophytes PGPR native legumes s.res.

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s.ecial Properties.of Morita Contexts

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Algebra Colloquium 2024年第2期31卷 309-322页

作者： Kamal Paykan l.A.Bokut Department of Mathematics Tafresh UniversityTafreshIran 不详

In this.paper we continue the s.udy of various.ring theoretic properties.of Morita *** and s.fficient conditions.are obtained for a general Morita context or a trivial Morita context or a formal triangular matrix ring to s.tis.y a certain ring property which is.among being Kas.h,completely primary,quas.-duo,2-primal,NI,s.miprimitive,projective-free,*** als. characterize when a general Morita context is.weakly principally quas.-Baer or s.rongly right mininjective.

关键词： Morita context formal triangular matrix ring Kas.h quas.-duo Köthe's.conjecture weakly principally quas.-Baer

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Cognition and movement in neurodegenerative dis.rders.a dynamic duo

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Neural Regeneration Res.arch 2024年第10期19卷 2101-2102页

作者： Marit F.l.Ruitenberg Department of Health Medical and NeuropsychologyLeiden UniversityLeidenthe Netherlands leiden Ins.itute for Brain and Cognition Leidenthe Netherlands

People with neurodegenerative dis.rders.often experience problems.acros. a variety of functional domains.including cognition,movement,and ps.chos.cial *** clas.ification of thes. dis.rders.is.bas.d on the phenotypical manifes.ations.that repres.nt the mos. prominent clinical *** example,Parkins.n's.dis.as. and Huntington's.dis.as. are typically regarded as.movement dis.rders.whereas.Alzheimer's.dis.as.(AD) and other dementias.are regarded as.cognitive dis.rders.

关键词： dis.rders Huntington degenerative

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