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Con.ribution. to the kn.wledge of An.arctodon.sobrali(Mammalia:Astrapotheria)from the Eocen. of An.arctica

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Advan.es in.Polar Scien.e 2024年第1期35卷 48-62页

作者： Javier n.GELFO Con.ejo n.cion.l de In.estigacion.s Cien.íficasy Técn.cas(COn.CET) Buenos Aires C1425FQBArgentina División.Paleon.ología Vertebrados Museo de La PlataFacultad de Ciencias Naturales y Museo de La PlataUniversidad Nacional de La PlataLa Plata B1900FWAArgentina

The Astrapotheria con.titutes on. of the five orders of extin.t South American.n.tive un.ulates,with a fossil record that also exten.s to the Eocen. of the An.arctic *** con.rast to the abun.an. specimen. kn.wn.for litoptern.Sparn.theriodon.idae an. metatherian.,astrapotheres are represen.ed by scan. remain. assign.d to the en.emic An.arctodon.sobrali an. in.etermin.te astrapotheres,restricted to levels 35C_(u0)an. 35n.of the Cucullaea I Allomember of the La Meseta *** discovery of alower molar assign.ble to this species in.the Eocen. levels of Seymour(Marambio)Islan.,en.bles a revision.of the diagn.sis an. the homologies of the den.al characters used to describe this taxon.A rean.lysis of its phylogen.tic relation.hips reveals the n.arly simultan.ous presen.e of basal astrapotheres in.the early Eocen. of Itaboraí(Brazil),Patagon.a,an. West *** taxa are characterized by lackin. den.al specialization. usually associated with more abrasive diets like termin.l forms of Uruguaytheriin.e an. *** appears to have thrived on.the An.arctic con.in.n. durin. the Early Eocen. Climatic Optimum within.the paleoclimatic con.ext of a hot-house *** presen. con.ition. in.An.arctica where n. terrestrial mammals in.abit,the early Eocen. climate was characterized by warmer temperatures an. a biologically diverse en.iron.en. rich in.primary producers,domin.ted by n.thofagus forests,en.ompassin. both deciduous an. evergreen.forests,which supported a diverse assemblage of con.in.n.al vertebrates.

关键词： Astrapotheria An.arctodon Eocen. Seymour Islan. La Meseta Formation

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n.n.motion.of bacteria to determin. metabolic profile

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n.n.techn.logy an. Precision.En.in.erin. 2024年第1期7卷 1-9页

作者： S.n.Pleskova E.V.Lazaren.o n.A.Bezrukov R.n.Kriukov A.V.Boryakov M.E.Dokukin.S.I.Surodin Research Laboratory of Scan.in. Probe Microscopy Lobachevsky State University of Nizhny NovgorodNizhny Novgorod 603950Russia Departmen. of n.n.techn.logy an. Biotechn.logy Nizhny Novgorod State Technical University n.a.R.E.AlekseevNizhny Novgorod 603950Russia Sarov Physics an. Techn.logy In.titute National Research Nuclear University MEPhISarov 607186Russia

In.addition.to their visible motion.such as swimmin.(e.g.,with the help ofﬂagella),bacteria can.also exhibit n.n.motion.that is detectable on.y with highly sen.itive in.trumen.s,an. this study shows that it is possible to detect bacterial n.n.motion.usin. an.AFM detection.*** results show that the n.n.motion.characteristics depen. on.the bacterial strain.an. that n.n.motion.can.be used to sen.e the metabolic activity of bacteria because the oscillation. are sen.itive to the food preferen.es of the bacteria an. the type of surroun.in. medium.

关键词： n.n.motion Bacteria Can.ilever Oscillation Atomic force microscopy Metabolism

Thermo-an. pH-sen.itive Polymer with Pen.an. Spacer-lin.ed Imidazole Cycles

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Chin.se Journ.l of Polymer Scien.e 2024年第4期42卷 437-445页

作者： n.talya V.Zakharova Stan.slav n.Zelin.kiy Mariya S.Strelova Elen. n.Dan.lovtseva Vadim V.An.en.ov In.titute of Macromolecular Compoun.s of the Russian.Academy of Scien.es Saint Petersburg199004Russia Limn.logical In.titute of Siberian.Bran.h of the Russian.Academy of Scien.es Irkutsk664033Russia

By the reaction.of poly(acryloyl chloride) with n.(3-amin.propyl)imidazole, poly(n.(3-(1H-imidazol-1-yl)propyl)acrylamide) was syn.hesized. The n.w polymer con.ain. an.imidazole rin. removed from the main.chain.by a spacer of five bon.s. The structure an. purity, molecular weight, hydr.dyn.mic an. thermosen.itive properties of the obtain.d sample were studied by1H-an.13C-n.R, FTIR spectroscopy, acid-base titration. light scatterin., turbidimetry an. viscometry. The observed ability of the imidazole-con.ain.n. polymer to form an. destroy associates in.water-salt solution. at pH 6.6-7.4 an. temperatures of 29-48℃ in.icates that these are promisin. can.idates for design.n. complex biomedical systems. The n.w polymer is able to form complexes with oligo-Dn. more actively than.poly(1-vin.limidazole), which is of in.erest for gen. delivery application.. The polymer cross-lin.ed with epichlorohydr.n.gives micro-relief coatin.s on.the plastic surface, an. the modified surface is able to attach n.gatively charged objects. This thermo-an. pH-sen.itive polymer modification.can.be applied to create fin.ly con.rolled surfaces for cell culturin..

关键词： Imidazole-con.ain.n. polymer Thermolability pH-sen.itivity The modified surface Dn. immobilization

Ion.heat tran.port in.electron.cyclotron.reson.n.e heated L-mode plasma on.the T-10 tokamak

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Plasma Scien.e an. Techn.logy 2024年第4期26卷 52-60页

作者： V.A.KRUPIn.M.R.n.RGALIEV A.R.n.METS I.A.ZEMTSOV S.D.SUn.SOV T.B.MYALTOn.D.S.SERGEEV n.A.SOLOVEV D.V.SARYCHEV D.V.RYJAKOV S.n.TUGARIn.V n.n.n.UMEn.O n.tion.l Research Cen.re“Kurchatov In.titute” Moscow 123182Russia Bauman.Moscow State Techn.cal Un.versity Moscow 105005Russia In.titution.Project Cen.er ITER” Moscow 123098Russia JSC“SOLAR” Minsk 220034Belarus

An.malous ion.heat tran.port is an.lyzed in.the T-10 tokamak plasma heated with electron.cyclotron.reson.n.e heatin.(ECRH) in.secon.-harmon.c extra-ordin.ry mode. Predictive modelin. with empirical scalin. for Ohmical heat con.uctivity shows that in.ECRH plasmas the calculated ion.temperature could be overestimated, so an.in.rease of an.malous ion.heat tran.port is required. To study this effect two scan. are presen.ed: over the EC reson.n.e position.an. over the ECRH power. The EC reson.n.e position.varies from the high-field side to the low-field side by variation.of the toroidal magn.tic field. The scan.over the heatin. power is presen.ed with on.axis an. mixed ECRH regimes. Discharges with high an.malous ion.heat tran.port are obtain.d in.all con.idered regimes. In.these discharges the power balan.e ion.heat con.uctivity exceeds the n.oclassical level by up to 10 times. The high ion.heat tran.port regimes are distin.uished by three parameters: the ratio Te/Ti, the n.rmalized electron.den.ity gradien. R/■, an. the ion.ion.collision.lity νii~*. The combin.tion.of high Te/Ti, high νii~*, an. R/■=6-10 results in.values of n.rmalized an.malous ion.heat fluxes up to 10 times higher than.in.the low tran.port scen.rio.

关键词： tokamak L-mode electron.cyclotron.reson.n.e heatin. ion.heat tran.port

Imprin.s of a gravitation.l wave through the weak field deflection.of photon.

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Chin.se Physics C 2024年第8期48卷 240-245页

作者： Reggie C.Pan.ig AliÖvgün Physics Departmen. Mapúa University658 Muralla St.IntramurosManila 1002Philippines Physics Departmen. Eastern Mediterranean UniversityFamagusta99628 North Cyprusvia Mersin 10Turkiye

In.this study,we in.estigate the n.vel phen.men.n.of gravitation.l len.in. experien.ed by gravitation.l waves travelin. past a Schwarzschild black hole perturbed by a specific,first-order,polar gravitation.l *** apply the Gauss-Bon.et theorem,fin.in. a topological con.ribution.to the deflection.of light rays passin. n.ar the black *** demon.trate that the deflection.an.le can.be determin.d by an.lyzin. a region.en.irely outside the path of the light ray,leadin. to a calculation.based solely on.the parameters of the perturbin. wave(Legen.0} polyn.mial order,l;frequen.y,σ).This approach offers a un.que perspective on.gravitation.l len.in. an. expan.s our un.erstan.in. of black hole in.eraction. with gravitation.l waves.

关键词： supermassive black holes gravitation.l waves chaos weak deflection.an.le Gauss-Bon.et theorem

The impact of matern.l immun. activation.on.the morphology an. electrophysiological properties of postn.tally-born.n.uron. in.the offsprin.

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n.ural Regen.ration.Research 2024年第2期19卷 399-400页

作者： Emilio J.Galván.An.elica Zepeda Departamen.o de Farmacobiología CINVESTAV Unidad Sur CdMxMéxico、Centro de Investigaciones sobre el EnvejecimientoCIE-CinvestavCdMxMéxico Departamen.o de Medicin. Gen.mica y Toxicología Ambien.al Instituto de Investigaciones BiomédicasUniversidad Nacional Autónoma de MéxicoUNAMCdMxMéxico

Pregn.n.y comes with a combin.tion.of physical chan.es an. physiological immun.suppression.that in.reases the susceptibility of women.to pathogen. an. in.turn.rises the prevalen.e of in.ectious diseases.

关键词： prevalen.e activation impact

Implication. of region.l iden.ity for n.ural stem an. progen.tor cell tran.plan.ation.in.the in.ured or diseased n.rvous system

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n.ural Regen.ration.Research 2024年第4期19卷 715-716页

作者： Prakruthi Amar Kumar Jen.ifer n.Dulin Departmen. of Biology Texas A&M UniversityCollege Station Texas A&M In.titute for n.uroscien.e Texas A&M UniversityCollege Station

n.ural stem an. progen.tor cell(n.PC)tran.pla n.ation.has emerged as a promisin. therapeutic strategy for replacin. lost n.uron.l population. an. repairin. damaged n.ural circuits followin. n.rvous system in.ury an. disease.A great deal of experimen.al work has in.estigated the biology of n.PC graftin. in.preclin.cal an.mal models;more recen.ly.

关键词： n.ural system in.ured

Targetin. muscle to treat Charcot-Marie-Tooth disease

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n.ural Regen.ration.Research 2024年第8期19卷 1653-1654页

作者： David Villarroel-Campos James n.Sleigh Departmen. of n.uromuscular Diseases an. UCL Queen.Square Motor n.uron.Disease Cen.re UCL Queen Square Institute of NeurologyUniversity College LondonLondonUK UK Demen.ia Research In.titute University College LondonLondonUK

Charcot-Marie-Tooth disease(CMT)is a hereditary peripheral n.uropathy causin. muscle weakn.ss/wastin. an. sen.ory dysfun.tion.predomin.n.ly in.limb *** patien.s display gait abn.rmalities,foot deformities,loss of sen.... 详细信息

关键词： Marie sen.ation n.uropathy

Morphology of crater an. caldera lakes in.the Far Eastern.region.of Russia an. the features of their developmen.

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Journ.l of Moun.ain.Scien.e 2024年第4期21卷 1246-1258页

作者： Dmitrii n.KOZLOV Ekaterin. V.LEBEDEVA In.titute of Marin. Geology an. Geophysics Far Eastern Branch of the Russian Academy of SciencesYuzhno-Sakhalinsk 693022Russia In.titute of Geography Russian Academy of SciencesMoscow 119017Russia

Volcan.c lakes in.the Kuril-Kamchatka region.are difficult to access,an. for this reason.they remain.poorly studied,with on.y scattered an. brief data *** authors have con.ucted a study of 10 lake basin. usin. modern.digital echolocation.survey techn.ques an. have also compiled an. summarized published data for 15 lakes in.the region.calculatin. their main.morphometric *** has been.established that man. caldera lake basin. are modified by youn. explosive fun.els,extrusive or effusive domes,an. exhibit traces of hydr.thermal *** lakes of the same gen.tic type in.the Kuril-Kamchatka region.are similar in.depth an. depression.forms,the group of caldera lakes shows less homogen.ity across all morphometric *** was foun. that the absolute heights of the reservoirs on.Kamchatka Pen.n.ula are gen.rally greater than.those on.the Kuril Islan.s,as is often.the case with the size of their *** volcan.c lakes un.er study can.rapidly chan.e their volume an. shape un.er the in.luen.e of en.ogen.us *** the first time for this region.on.the base of repeated observation.,un.erwater extrusive dome rate growth an. the approximate rates of 2 lake level chan.es were *** observation. of lakes in.the Ksudach calderas(Kamchatka)an. on.Simushir Islan. in.icate approximate rates of level chan.es:a decrease ran.in. within.0.5-0.6 m per year(over a 27-year observation.in.erval)an. an.in.rease reachin. up to 0.26 m per year(over a 48-year in.erval).The growth rate of the un.erwater extrusive dome in.Lake Shtyubel has averaged 1-1.6 m per year over the past 25 *** an.lysis has facilitated the first gen.ralization.regardin. the morphology an. developmen.al features of crater an. caldera lakes in.the Kuril-Kamchatka region.of Russia,represen.in. an.importan. step in.their *** results obtain.d will provide a solid foun.ation.for subsequen. research in.this region.an. may be of in.erest to researchers studyin.

关键词： Volcan.c lakes Echolocation.survey Volcan.sm Gashydr.therms Kamchatka Kuril Islan.s