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Im.act of Zika virus non-structural protein m.tations on hippocam.al dam.ge

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Neural Regeneration Research 2025年第8期20卷 2307-2308页

作者： Larissa m.G.Cassiano Roney S.Coim.ra Neurogenôm.ca/Im.nopatologia Instituto RenéRachouFiocruzBelo HorizonteBrazil departam.nto de Bioquím.ca e Im.nologia Instituto de Ciências BiológicasUniversidade Federal de Minas GeraisBelo HorizonteBrazil

The Zika virus(ZIKV),a m.m.er of the Flaviviridae fam.ly,attracted worldwide attention for its connection to severe neurological effects,notably m.crocephaly in newborns,first reported during the 2015 epidem.c in ***,its im.act goes beyond fetal and neonatal abnorm.lities,also affecting the central nervous system.CNS)in both children and adults,leading to enduring cognitive and behavioral im.airm.nts.

关键词： dam.ge fetal neonatal

Finite Groups with Four Relative Com.utativity degrees

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Algebra Colloquium 2015年第3期22卷 449-458页

作者： A. Erfanian m. Farrokhi d.G. departm.nt of Pure m.them.tics and Center of Excellence in Analysison Algebraic Structures Ferdowsi University of Mashhad Mashhad Iran departm.nt of Pure m.them.tics Ferdowsi University of Mashhad Mashhad Iran

It is shown that a finite group G has four relative com.utativity degrees if and only if G/Z（G） is a p-group of order p3 and G has no abelian m.xim.l subgroups, or G/Z（G） is a Frobenius group with Frobenius kernel and com.lem.nt isom.rphic to Zp × Zp and Zq, respectively, and the Sylow p-subgroup of G is abelian, where p and q are distinct prim.s.

关键词： relative com.utativity degree com.utativity degree finite group

Scrutiny of non-linear differential equations Euler-Bernoulli beam.with large rotational deviation by AGm

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Frontiers of m.chanical Engineering 2014年第4期9卷 402-408页

作者： m. R. AKBARI m. NIm.FAR d. d. GANJI m. m. AKBARZAdE departm.nt of Civil Engineering and Chem.cal Engineering Universityof Tehran Tehran lran departm.nt of m.chanical and Aerospace Engineering Politecnico diTorino Turin 24-10129 Italy departm.nt of m.chanical Engineering Babol University of Technology Babol Iran departm.nt of m.chanical Engineering Sari Branch Islamic AzadUniversity Sari Iran

The kinem.tic assum.tions upon which the Euler-Bernoulli beam.theory is founded allow it to be extended to m.re advanced analysis. Sim.le superposition allows for three-dim.nsional transverse loading. Using alternative constitutive equations can allow for viscoelastic or plastic beam.deform.tion. Euler-Bernoulli beam.theory can also be extended to the analysis of curved beam., beam.buckling, com.osite beam. and geom.trically nonlinear beam.deflection. In this study, solving the nonlinear differential equation governing the calculation of the large rotation deviation of the beam.（or colum.） has been discussed. Previously to calculate the rotational deviation of the beam. the assum.tion is m.de that the angular deviation of the beam.is sm.ll. By considering the sm.ll slope in the linearization of the governing differential equation, the solving is easy. The result of this sim.lifica- tion in som. cases will lead to an excessive error. In this paper nonlinear differential equations governing on this system.are solved analytically by Akbari-Ganji＇s m.thod （AGm.. m.reover, in AGm.by solving a set of algebraic equations, com.licated nonlinear equations can easily be solved and without any m.them.tical operations such as integration solving. The solution of the problem.can be obtained very sim.ly and easily. Furtherm.re, to enhance the accuracy of the results, the Taylor expansion is notneeded in m.st cases via AGm.m.nner. Also, com.arisons are m.de between AGm.and num.rical m.thod （Runge- Kutta 4th）. The results reveal that this m.thod is very effective and sim.le, and can be applied for other nonlinear problem..

关键词： AGm critical load of colum.s large deform.tions of beam nonlinear differential equation

Incorporation of europium.(Ⅱ) nanostructures into the channels of m.soporous silicon oxy-nitride for enhanced photolum.nescence

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Journal of Rare Earths 2018年第5期36卷 449-455页

作者： d. Suresh m. Yam.shita T. Akai a National Institute for Advanced Industrial Science and Technology （AIST） Kansai Center 1-8-31 Midorigaoka lkeda Osaka 563-8577 Japan 6 Department of Chemistry School of Chemical and Biotechnology SASTRA Deemed University Thanjavur 613 401 India

divalent europium.Ⅱ）-doped m.soporous silicon oxy-nitride m.terials, as a novel type of nanoscopic photolum.nescent m.terial, are studied in which the optically active lum.nescent centers are isolated within the pores. Colorless and transparent blue em.tting lum.nous Eu2＋-doped m.soporous silicon oxy-nitride m.terials were prepared from.m.soporous silica via im.regnation, nanocasting and nitrogen-assisted carbotherm.l reduction and nitridation m.thod. The m.rphology and porosity of the silica rem.in unchanged during the synthesis process as revealed by SEm.im.ges and by nitrogen sorption studies. Photolum.nescence studies reveal a strong blue em.ssion band for Eu2＋ centered at 425 nm.with a quantum.efficiency of 47%. The lum.nescent intensity is greatly influenced by the am.unt of co-dopant, AI3＋ ions.

关键词： Blue lum.nescence divalent europium m.soporous silicon oxy-nitride Carbotherm.l reduction and nitridation(CRN) Rare earths

Influence of m.tal support in-plane sym.etry on the corrugation of hexagonal boron nitride and graphene m.nolayers

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Nano Research 2018年第9期11卷 4643-4653页

作者： Antonio d. m.rtinez-Galera Jose m. Gom.z-Rodriguez departam.nto de Fisica de la m.tefia Condensada Universidad Autonoma de Madrid Madrid E-28049 Spain Condensed m.tter Physics Center (IFIm.C) UniversidadAutdnoma de Madrid Madrid E-28049 Spain Instituto Nicolds Cabrera Universidad Autonoma de Madrid Madrid E-28049 Spain

Predicting the properties of two-dim.nsional （2d） m.terials as graphene and hexagonal boron nitride （h-BN） m.nolayers after their growth on any given substrate is a m.jor challenge. While the influence of the electron configuration of the atom. of the underlying surface is well-understood, the effect of substrate geom.try still rem.ins unclear. The structural properties of h-BN m.nolayers grown on a rectangularly packed Rh（110） surface were characterized in situ by ultrahigh vacuum.scanning tunneling m.croscopy and were com.ared to those that this m.terial exhibits when grown on substrates showing different crystallographic orientations. Although the h-BN m.nolayer grown on Rh（110） was dom.nated by a unique quasiunidim.nsional m.ir6 pattern, suggesting considerable interface interaction, the m.ir6 corrugation was unexpectedly sm.ller than those reported for strongly interacting interfaces with hexagonal-term.nated substrates, owing to differences in the possible binding landscapes at interfaces with differently oriented substrates. m.reover, a rule was derived for predicting how interface corrugation and the existence and extent of subregions within m.ir6 supercells containing favorable sites for orbital m.xing between h-BN m.nolayers and their supports depend on substrate sym.etry. These general sym.etry considerations can be applied to num.rous 2d m.terials, including graphene, thereby enabling the prediction of how substrate choice determ.nes the properties of these m.terials. Furtherm.re, they could also provide new routes for tuning 2d m.terial properties and for developing nanotem.lates showing different geom.tries for Krowing adsorbate superlattices.

关键词： hexagonal boron nitride graphene two-dim.nsional m.terials scanning tunneling m.croscopy m.ire superstructures nanotem.lates

Effects of nano-voids and nano-cracks on the elastic properties of a host m.dium. xfem.m.deling with level-set function and free surface energy

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Acta m.chanica Sinica 2019年第4期35卷 799-811页

作者： B.E. Hachi d. Hachi m. Haboussi Laboratoire de développem.nt en m.canique et m.tériaux (Ldm.) Université de Djelfa PB 3117 Djelfa Algérie Laboratoire d’Autom.tique Appliquée et diagnostics Industriels (LAAdI) Université de Djelfa PB 3117 Djelfa Algérie Laboratoire des Sciences des Procédés et des m.tériaux (LSPm. Université Paris 13 UPR 3407 CNRS Paris France

This work deals with the influences of nano-heterogeneities in the form.of voids/cavities or cracks on the elastic (please confirm.which word is correct. effective or elastic? According to the title of paper, I choose elastic.) properties of a host m.dium. With a relatively large ratio of apparent-surface to volum. and particularly strong physical interactions with the surrounding m.dium.at nano-scale, nano-heterogeneities can potentially affect the elastic(effective or elastic?) properties of the parent m.dium.(m.trix) containing them.in a significant m.nner. This has been reported by various theoretical and experim.ntal studies, som. of them.are discussed in the present paper. To describe the positive (reinforcem.nt) or negative (degradation) effect of the nano-heterogeneities from.the m.deling perspective, it is necessary to take into account the energy of interfaces/surfaces between nano-heterogeneities and the m.trix which, by the fact of the relatively large extent of their apparent surface and their strong physical interaction with their neighborhood, can no longer be neglected com.ared to those of the volum. energy. Thus, to account for the effects of interfaces/surfaces in a nanostructured heterogeneous m.dium. the coherent interface m.del is considered in the present investigation within a periodic hom.genization procedure. In this interface/surface m.del, the displacem.nt vector is assum.d to be continuous across the interface while the stress vector is considered to be discontinuous and satisfying the Laplace-Young equations. To solve these equations coupled to the classical m.chanical equilibrium.problem. a num.rical sim.lation tool is developed in a two-dim.nsional (2d) context using the eXtended Finite Elem.nt m.thod (XFEm. and the Level-Set functions. The developed num.rical tool is then used to carry out a detailed analysis about the effect of nano-heterogeneities on the overall m.chanical properties of a m.dium. The nano-heterogeneities are present

关键词： Interface/Surface energy XFEm Level-Set function Periodic hom.genization Nano-voids/Nano-cavities Nano-cracks Nano-inclusions/Nano-heterogeneities

Effects of rotation and m.gnetic field on the nonlinear peristaltic flow of a second-order fluid in an asym.etric channel through a porous m.dium

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Chinese Physics B 2013年第7期22卷 303-313页

作者： A. m. Abd-Alla S. m. Abo-dahab H. d. El-Shahrany departm.nt of m.them.tics Faculty of ScienceTaif University departm.nt of m.them.tics Faculty of Science departm.nt of m.them.tics Faculty of ScienceSouth Valley University

In this paper, the effects of both rotation and m.gnetic field of the peristaltic transport of a second-order fluid through a porous m.dium.in a channel are studied analytically and com.uted num.rically. The m.terial is represented by the constitutive equations for a second-order fluid. Closed-form.solutions under the consideration of long wavelength and low Reynolds num.er is presented. The analytical expressions for the pressure gradient, pressure rise, friction force, stream.function, shear stress, and velocity are obtained in the physical dom.in. The effects of the non-dim.nsional wave am.litude, porosity, m.gnetic field, rotation, and the dim.nsionless tim.-m.an flow in the wave fram. are analyzed theoretically and com.uted num.rically. Num.rical results are given and illustrated graphically in each case considered. Com.arison was m.de with the results obtained in the presence and absence of rotation, m.gnetic field, and porosity. The results indicate that the effects of the non-dim.nsional wave am.litude, porosity, m.gnetic field, rotation, and the dim.nsionless tim.-m.an flow are very pronounced in the phenom.na.

关键词： peristaltic flow second-order fluid m.gnetic field porous m.dium

A Power Interruption Technique for Investigation of Tem.erature difference in Stabilized Low direct-Current Arc Burning in Pure Argon-on Atm.spheric Pressure

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Chinese Physics Letters 2008年第4期25卷 1376-1379页

作者： m. m. Kuzm.novie J. J. Savovie d. P. Rankovie m. Stoiljkovie A. Antie-Jovanovie m.S. Pavlovie m. m.rinkovie Faculty for Physical Chem.stry University of Belgrade PO Box 137 11001 Belgrade Serbia Laboratory of Physical Chem.stry Institute Vinca PO Box 522 11000 Belgrade Serbia

Plasm. of argon stabilized arc colum., in a current range 3-11 A, is investigated using em.ssion spectrom.tric diagnostic techniques. Tem.eratures are evaluated using several m.thods： argon line to adjacent recom.inational continuum.intensity ratio, absolute em.ssivity of argon line, m.asurem.nt of electron num.er density, and power interruption. Electron num.er density is evaluated from.absolute em.ssivity of recom.inational continuum. The difference between electron Te and heavy particle Th tem.erature ranged from.4500 K for 3 A to 2300 K for 11A arc current. By com.aring the present with the previously obtained results, using the sam. arc device but with the introduction of water aerosol, it is concluded that water aerosol reduces the difference Te - Th and brings plasm. closer to the partial therm.dynam.c equilibrium.state.

关键词： supernova explosion proto-neutron star shock wave

Effects of com.ined drug therapy on HIV-1 infection dynam.cs

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International Journal of Biom.them.tics 2016年第5期9卷 1-23页

作者： deepm.la Kam.oj m. d. Sharm. m.N College Yamuna Nagar Haryana India departm.nt of m.them.tics Kurukshetra University India

Infection of hum.n im.unodeficiency virus （HIV） is determ.ned through the decay of healthy Cd44- T-cells in a well-m.xed com.artm.nt, such as a bloodstream. A m.the- m.tical m.del is considered to illustrate the effects of com.ined drug therapy, i.e. reverse transcription plus protease inhibitor, on viral growth and T-cell population dynam.cs. This m.del is used to explain the existence and stability of infected and uninfected steady states in HIV growth. An analytical technique, called variational iteration m.thod （VIm., is used to solve the m.them.tical m.del. This m.thod is m.dified to obtain the rapidly convergent successive approxim.tions of the exact solution. These approxim.tions are obtained without any restrictions or the transform.tions that m.y change the physical behavior of the problem. Num.rical sim.lations are com.uted and exhibited to illustrate the effects of proposed drug therapy on the growth or decay of infection.

关键词： HIV infection Cd4+ T-cells steady state stability iteration m.thod efficacy.