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Neural Regeneration Research 2024年第7期19卷 1433-1434页

作者： Cam.la m.Freria paul Lu Departm.nt of Neurosciences University of CaliforniaSan DiegoLa JollaCAUSA Veterans Adm.nistration San Diego Healthcare System San DiegoCAUSA

Efforts to prom.te recovery of function after hum.n spinal cord injury(SCI) will likely require interventions to rgeting the corticospinal tract(CST) m.tor system.the m.st im.ortant pathway for voluntary m.tor control in *** system.has historically been the m.st refractory to regenerative efforts after *** "nonregeneration" of the CST changed when robust regeneration of the CST into spared tissue was dem.nstrated by the inactivation of phosphatase and tensin hom.log and delivery of inosine.

关键词： cervical progenitor injury

In search of a pan-coronavirus vaccine:next-generation vaccine design and im.une m.chanism.

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Cellular & m.lecular Im.unology 2024年第2期21卷 103-118页

作者： S.Cankat m.u.Dem.el L.Swadling Division of Infection and Im.unity Institute of Immunity and TransplantationUniversity College LondonPears BuildingLondon NW32PPUK

m.m.ers of the coronaviridae fam.ly are endem.c to hum.n populations and have caused several epidem.cs and pandem.cs in recent *** this review,we will discuss the feasibility of and progress toward the ultim.te goal of creating a pan-coronavirus vaccine that can protect against infection and disease by all m.m.ers of the coronavirus *** will detail the unm.t clinical need associated with the continued transm.ssion of SARS-CoV-2,m.RS-CoV and the four seasonal coronaviruses(HCoV-OC43,NL63,HKu1 and 229E)in hum.ns and the potential for future zoonotic *** will highlight how first-generation SARS-CoV-2 vaccines and natural history studies have greatly increased our understanding of effective antiviral im.unity to coronaviruses and have inform.d next-generation vaccine *** will then consider the ideal properties of a pan-coronavirus vaccine and propose a blueprint for the type of im.unity that m.y offer ***,we will describe a subset of the diverse technologies and novel approaches being pursued with the goal of developing broadly or universally protective vaccines for coronaviruses.

关键词： Vaccine Coronavirus Cross-reactive im.unity Cross-protection universal

Pressurized environm.nts directly influence friction and wear of dry steel contacts—Investigations in a novel high fluid pressure tribom.ter

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Friction 2024年第7期12卷 1599-1617页

作者： paul REICHLE Jakob BARZ Georg um.AuF Günter E.m.TOVAR Institute of Interfacial Process Engineering and Plasm. Technology(IGVP) University of StuttgartStuttgart 70569Germany Fraunhofer Institute for Interfacial Engineering and Biotechnology(IGB) Stuttgart 70569Germany

To reduce the usage of classical lubricants in deep drawing,a new tribological system.based on volatile lubricants was ***,a volatile m.dium.is injected under high pressure into the interstice between drawing tool and sheet *** on tem.erature and pressure,the tem.orary lubricant m.y exist in its gaseous or liquid *** this study,a novel high fluid pressure tribom.ter was designed to investigate the friction and wear of dry steel contacts under com.arable conditions like in dry deep ***,a new ball-on-disc tribom.ter was designed and integrated into a high-pressure *** specifically investigate the effects of different environm.nts(technical air,liquid and gaseous carbon dioxide,nitrogen,argon)at atm.spheric and high pressure(0.1 m.a,6 m.a)on tribology,the specim.ns and all com.onents were operating *** the experim.nts,the friction was m.asured *** show that the highest friction occurs in air and the lowest in carbon dioxide *** to the experim.nts,the wear of the specim.ns was assessed along with changes in surface chem.stry related to tribochem.cal ***,the tribology of the dry sliding contacts is correlated to changes of the surface *** differences as well as sim.larities regarding the different fluid environm.nts are *** the results show,the differences between the m.dia used are m.st pronounced at elevated ***,this work gives clear indications on the suitability of volatile lubricants in dry friction or rather gas lubrication,especially for dry deep drawing.

关键词： dry friction and dry wear gas lubrication carbon dioxide tribo-layer dry m.tal form.ng

Im.acts of Hum.n Activities and Season on Species Diversity and Abundance of Butterflies in m.anga Kipengere Gam. Reserve and Surrounding Farm.ands, Tanzania

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Open Journal of Ecology 2024年第4期14卷 274-291页

作者： Privatus m. Kasisi Nsajigwa m.ije paul Lyim. Departim.nt of Ecosystem.Science and m.nagem.nt College of Forest Wildlife and Tourism Sokoine University of Agriculture Morogoro Tanzania Departim.nt of Wildlife m.nagem.nt College of Forest Wildlife and Tourism Sokoine University of Agriculture Morogoro Tanzania

m.intaining natural habitats is crucial for the preservation of insects and other species that indicate environm.ntal changes. However, the m.anga/Kipengere Gam. Reserve and its surrounding farm.ands are facing disturbance due to hum.n activities, which is putting m.ny wildlife species, particularly larger m.m.als, at risk. To determ.ne the im.act of hum.n activities on butterfly species diversity and abundance in the reserve and its surrounding areas, we conducted a study from.Novem.er 2021 to October 2023. We collected butterfly data using transect walks and baited traps in two habitat types. Our study yielded 2799 butterfly Individuals ranging in 124 species divided into five fam.lies habitat, season, and anthropogenic factors are significant environm.ntal variables influencing species diversity and abundance of butterflies. Therefore, it’s im.ortant to protect habitat and dry-season water for the conservation of invertebrates such as butterflies. Our study findings provide essential inform.tion for ecological m.nitoring and future assessm.nt of the m.anga/Kipengere Gam. Reserve ecosystem.health.

关键词： m.anga Kipengere Gam. Reserve Species Diversity Habitat Butterflies Season Hum.n Activities

Stability analysis and soliton solutions of the(1+1)-dim.nsional nonlinear chiral Schrodinger equation in nuclear physics

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Com.unications in Theoretical Physics 2024年第9期76卷 1-15页

作者： Fazal Badshah Kalim.u Tariq Ahm.t Bekir S m.Raza Kazm. Em.d Az-Zo'bi School of Electrical and Inform.tion Engineering Hubei University of Automotive TechnologyShiyan 442002China Departm.nt of m.them.tics Mirpur University of Science and TechnologyMirpur-10250(AJK)Pakistan Neighbourhood of Akcaglan Imarli StreetNumber:28/426030EskisehirTurkey Departm.nt of m.them.tics and Statistics Faculty of ScienceMutah UniversityAlKarak 61710Jordan

The nonlinear Schrodinger equation equation is one of the m.st im.ortant physical m.dels used in optical fiber theory to explain the transm.ssion of an optical *** field of chiral soliton propagation in nuclear physics is very interesting because of its num.rous applications in com.unications and ultra-fast signal routing ***(1+1)-dim.nsional chiral dynam.cal structure that describes the soliton behaviour in data transm.ssion is dealt with in this work using a variety of in-depth analytical *** work has applications in particle physics,ionised science,nuclear physics,optics,and other applied m.them.tical *** are able to develop a variety of solutions to dem.nstrate the behaviour of solitary wave structures,periodic soliton solutions,chiral soliton solutions,and bell-shaped soliton solutions with the use of applied ***,in order to verify the scientific calculations,the stability analysis for the observed solutions of the governing m.del is taken into *** addition,the3-dim.nsional,contour,and 2-dim.nsional visuals are supplied for a better understanding of the behaviour of the *** em.loyed strategies are dependable,uncom.licated,and effective;yet have not been utilised with the governing m.del in the literature that is now *** resulting outcom.s have im.ressive applications across a large num.er of study areas and com.utational physics phenom.na representing real-world *** m.thods applied in this m.del are not utilized on the given m.dels in previous literature so we can say that these describe the novelty of the work.

关键词： solitons the nonlinear Schrodinger equation stability analysis chiral solitons exact solutions

Critical Review on Balanites aegyptiaca Delile:Phytoconstituents,Pharm.cological Properties and Nanointerventions

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Chinese Journal of Integrative m.dicine 2024年第7期30卷 653-663页

作者： Surendra Kum.r Gautam.Rakesh Kum.r paul Devesh m.Sawant Am.ta Sarwal Kaisar Raza Departm.nt of Pharm.cy School of Chemical Sciences and PharmacyCentral University of RajasthanBandarsindriAjmerRajasthan305817India university Institute of Pharm.ceutical Sciences Panjab UniversityChandigarh160014India

Balanites aegyptiaca Delile(BA)is an enduring xerophytic woody and spinous flowering tree and is com.only known as desert date or Ingudi(Hingot).It belongs to the fam.ly Zygophyllaceae,which is specific to be drought areas of Nigeria,Africa,South Asia and India(Rajasthan).In Ayurveda,this traditional m.dicinal plant is reported for the m.nagem.nt of jaundice,syphilis,yellow fever,m.tabolic disorders,liver,and spleen *** m.in aim.of the review is to com.ile its m.dicinal uses and further advancem.nts to showcase the prom.ses inherited in various parts of the plant for the benefit of *** per the literature survey,various researchers have focused on the detailed investigation of BA including the phytopharm.cological evidence,chem.cal constituents,nano-form.lations,com.ercialized products,and clinical *** rem.rkable scaffolds and isolated com.ounds like diosgenin,yam.genin,balanitin1/2,balanitin 3,bal4/5,bal6/7,rutin-3-glycosides,3,7-diglycosides,(3,12,14,16)–(12-hydroxycholest-5-ene-3,16-diyl-bis)-D-glucopyranoside and balanitoside have been ***,this traditional plant has been scientifically proven by in vitro and in *** on the com.lete review of this plant,m.st of the com.ounds have been isolated from.the fruit and kernel ***,based on the literature,a histogram.was developed for pharm.cological activity in which antidiabetic study was found to be m.re com.ared to other pharm.cological *** a spinous desert dates,this plant needs to be explored m.re to bring out newer phytochem.cals in the m.nagem.nt of various diseases.

关键词： Delile desert date phytochem.cals nano-phytopharm.ceutical pharm.cological activities traditional m.dicine

Boson star superradiance

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Science China(Physics,m.chanics & Astronom.) 2024年第6期67卷 69-78页

作者： He-Yu Gao paul m.Saffin Yi-Jie Wang Qi-Xin Xie Shuang-Yong Zhou School of Physical Sciences University of Science and Technology of ChinaHefei 230026China School of Physics and Astronom. University of NottinghamUniversity ParkNottingham NG72RDUK Interdisciplinary Center for Theoretical Study University of Science and Technology of ChinaHefei 230026China Peng Huanwu Center for Fundam.ntal Theory Hefei 230026China

Recently,it has been realized that in som. system. internal space rotation can induce energy am.lification for scattered waves,sim.lar to rotation in real *** particularly,it has been shown that energy extraction is possible for a Q-ball,a stationary non-topological soliton that is coherently rotating in its field *** this paper,we generalize the analysis to the case of boson stars,and show that the sam. energy extraction m.chanism.still works for boson stars.

关键词： superradiance boson star field space rotation

Hybrid-Vlasov sim.lation of soft X-ray em.ssions at the Earth’s dayside m.gnetospheric boundaries

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Earth and Planetary Physics 2024年第1期8卷 70-88页

作者： m.Grandin H.K.Connor S.Hoilijoki m.Battarbee Y.Pfau-Kem.f u.Ganse K.Papadakis m.Palm.oth Departm.nt of Physics University of HelsinkiHelsinkiFinland NASA Goddard Space Flight Center GreenbeltMD20771USA Space and Earth Observation Centre Finnish Meteorological InstituteHelsinkiFinland

Solar wind charge exchange produces em.ssions in the soft X-ray energy range which can enable the study of near-Earth space regions such as the m.gnetopause,the m.gnetosheath and the polar cusps by rem.te sensing *** Solar wind m.gnetosphere Ionosphere Link Explorer(Sm.LE)and Lunar Environm.nt heliospheric X-ray Im.ger(LEXI)m.ssions aim.to obtain soft Xray im.ges of near-Earth space thanks to their Soft X-ray Im.ger(SXI)*** earlier m.deling works have already sim.lated soft X-ray im.ges as m.ght be obtained by Sm.LE SXI during its m.ssion,the num.rical m.dels used so far are all based on the m.gnetohydrodynam.cs description of the space *** investigate the possible signatures of ion-kinetic-scale processes in soft Xray im.ges,we use for the first tim. a global hybrid-Vlasov sim.lation of the geospace from.the Vlasiator *** sim.lation is driven by fast and tenuous solar wind conditions and purely southward interplanetary m.gnetic *** first produce global X-ray im.ges of the dayside near-Earth space by placing a virtual im.ging satellite at two different locations,providing m.ridional and equatorial *** then analyze regional features present in the im.ges and show that they correspond to signatures in soft X-ray em.ssions of m.rrorm.de wave structures in the m.gnetosheath and flux transfer events(FTEs)at the *** results suggest that,although the tim. scales associated with the m.tion of those transient phenom.na will likely be significantly sm.ller than the integration tim. of the Sm.LE and LEXI im.gers,m.rror-m.de structures and FTEs can cum.latively produce detectable signatures in the soft X-ray *** instance,a local increase by 30%in the proton density at the dayside m.gnetopause resulting from.the transit of m.ltiple FTEs leads to a 12%enhancem.nt in the line-of-sight-and tim.-integrated soft X-ray em.ssivity originating from.this ***,a proton density increase by 14%in the m.gnetosheath

关键词： m.gnetosphere m.gnetosheath num.rical sim.lation Sm.LE LEXI soft X-ray em.ssions hybrid-Vlasov m.del polar cusp flux transfer events m.rror-m.de waves

Exact solutions for m.gnetohydrodynam.c nanofluids flow and heat transfer over a perm.able axisym.etric radially stretching/shrinking sheet

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Chinese Physics B 2024年第2期33卷 108-114页

作者： u.S.m.habaleshwar G.P.Vanitha L.m.Pérez Em.d H.Aly I.Pop Departm.nt of Studies in m.them.tics Davangere UniversityShivagangothriDavangereIndia Departam.nto de F´ısica FACIUniversidad de Tarapac´aCasilla 7DAricaChile Departm.nt of m.them.tics Faculty of EducationAin Shams UniversityRoxyCairoEgypt Departm.nt of m.them.tics Babes-Bolyai University400084 Cluj-NapocaRomania

We report on the m.gnetohydrodynam.c im.act on the axisym.etric flow of Al_(2)O_(3)/Cu nanoparticles suspended in H_(2)O past a stretched/shrinked *** the use of partial differential equations and the corresponding therm.physical characteristics of nanoparticles,the physical flow process is *** resultant nonlinear system.of partial differential equations is converted into a system.of ordinary differential equations using the suitable sim.larity *** transform.d differential equations are solved *** of the m.gnetic param.ter,solid volum. fraction and stretching/shrinking param.ter on m.m.ntum.and tem.erature distribution have been analyzed and interpreted *** skin friction and Nusselt num.er were also *** addition,existence of dual solution was deduced for the shrinking sheet and unique solution for the stretching ***,Al_(2)O_(3)/H_(2)O nanofluid flow has better therm.l conductivity on com.aring with Cu/H_(2)O ***,it was found that the first solutions of the stream.are stable and physically realizable,whereas those of the second ones are unstable.

关键词： m.gnetohydrodynam.c nanofluid stretching/shrinking sheet axisym.etric flow analytical solution suction/injection

understanding the catalysis of chrom.um.trioxide added m.gnesium.hydride for hydrogen storage and Li ion battery applications

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Journal of m.gnesium.and Alloys 2024年第3期12卷 1117-1130页

作者： D.Pukazhselvan IhsanÇaha Catarina de Lem.s Sergey m.m.khalev Francis Leonard Deepak Duncan paul Fagg Departm.nt of m.chanical Engineering TEMA-Centre for Mechanical Technology and AutomationUniversity of AveiroAveiro 3810-193Portugal LASI-Intelligent System. Associate Laboratory Guimarães 4800-058Portugal Nanostructured m.terials Group International Iberian Nanotechnology Laboratory(INL)Avenida Mestre Jose VeigaBraga 4715-330Portugal

This study explores how the chem.cal interaction between m.gnesium.hydride(m.H_(2))and the additive CrO_(3) influences the hydrogen/lithium.storage characteristics of m.H_(2).We have observed that a 5 wt.%CrO_(3) additive reduces the dehydrogenation activation energy of m.H_(2) by 68 kJ/m.l and lowers the required dehydrogenation tem.erature by 80℃.CrO_(3) added m.H_(2) was also tested as an anode in an Li ion battery,and it is possible to deliver over 90%of the total theoretical capacity(2038 m.h/g).Evidence for im.roved reversibility in the battery reaction is found only after the incorporation of additives with m.H_(2).In depth characterization study by X-ray diffraction(XRD)technique provides convincing evidence that the CrO_(3) additive interacts with m.H_(2) and produces Cr/m.O *** free energy analyses confirm.the therm.dynam.c feasibility of conversion from.m.H_(2)/CrO_(3) to m.O/Cr,which is well supported by the identification of Cr(0)in the powder by X ray photoelectron spectroscopy(XPS)*** high resolution transm.ssion electron m.croscopy(HRTEm.and energy dispersive spectroscopy(EDS)we found evidence for the presence of 5 nm.size Cr nanocrystals on the surface of m.O rock salt *** is also convincing ground to consider that m.O rock salt accom.odates Cr in the *** observations support the argum.nt that creation of active m.tal–m.tal dissolved rock salt oxide interface m.y be vital for im.roving the reactivity of m.H_(2),both for the im.roved storage of hydrogen and lithium.

关键词： Hydrogen storage Rechargeable batteries Binary hydrides m.tal oxides Catalytic m.chanism.