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Monte Carlo simulation of lattice analysis of complex LaCeTh0.1CuOy using ion bombardment technique

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Nuclear Science and Techniques 2020年第3期31卷 20-34页

作者： M.e.emetere Department of Physics Covenant University Canaanland Department of Mechanical engineering Science University of Johannesburg

Ion bombardment analysis of perovskite materials is challenging owing to their peculiar *** shortcoming renders the reliability on the technique somewhat *** this research,three structured modifications(i.e.,scan angle,low energy,and large ion bombardment)were adopted to improve the ion bombardment analysis of 99,999 ions using Monte Carlo *** modified technique was used to analyze the effects of a chemically pressurized‘‘A’’site in the perovskite lattice *** LaCeTh0.1Cu2Oy compound was used in this *** the low probing energy,it was observed that the high number of ions bombarding the material resulted in external pressure on the lattice structure of the ***,the chemically pressurized‘‘A’’site perovskite material was characterized by lattice mismatch,lattice fluctuations,grain boundary collapse,and oxygen *** novel discovery of this research is the inter-and intra-extended lattice mismatches that are likely to ***,further investigation of the connection between inter-and intraextended lattice mismatches is recommended as they may enable fabrication of room-temperature superconductors.

关键词： Lattice mismatch Ion bombardment Chemical pressure Scan angle

Developmental environment contributes to rapid trait shifts among newly colonized subterranean habitats

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Zoological Research 2023年第4期44卷 808-820页

作者： Nathan e.Swanson Andrew G.Gluesenkamp Alexandra e.Donny Suzanne e.McGaugh Department of Fisheries Wildlife and Conservation BiologyUniversity of MinnesotaSaint PaulMN 55108USA Department of ecology and evolutionary Biology University of California IrvineIrvineCA 92697-2525USA Center for Conservation and Research San Antonio ZooSan AntonioTexas 78212USA ecology Evolutionand BehaviorUniversity of MinnesotaSaint PaulMN 55108USA Department of Biology Stanford UniversityStanfordCA 94305USA

Recent colonization of extreme environments provides unique opportunities to study the early steps of adaptation and the potential for rapid convergent ***,phenotypic shifts during recent colonization may also be due to plasticity in response to changes in the rearing ***,we analyzed a suite of morphological and behavioral traits in paired surface,subterranean,and facultatively subterranean Mexican tetras(Astyanax mexicanus)from recent introductions in two separate watersheds outside of their native *** found a variety of phenotypic and behavioral shifts between subterranean and surface populations that are similar to those observed in relatively ancient populations in *** this rapid morphological divergence,we found that most of these trait differences were due to plasticity in response to rearing *** most trait assays in common-garden,lab-raised fish indicated that phenotypic shifts in wild fish were the result of plasticity,we also found evidence of genetic control in several traits present in subterranean ***,wall-following behavior,an important subterranean foraging behavior,was greater in lab-born subterranean fish than in lab-born surface fish,suggesting rapid divergence of this trait between subterranean and surface ***,this study sheds light on the early steps of subterranean evolution,identifies potential rapid behavioral evolution,and suggests that plasticity in traits involving exploratory behavior may facilitate subterranean colonization.

关键词： Plasticity Adaptation Subterranean Cavefish evolution Common garden

Calculation of resonant sound absorption parameters for performance evaluation of metal rubber material

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Science China(Technological Sciences) 2009年第12期52卷 3587-3591页

作者： e.A.IZZHeUROV Samara State Aerospace University Samara 443086Russia

The first resonant(anti-resonant)frequency and sound absorption coefficient of metal rubber(MR) material are theoretically studied with hard backed samples and with air *** equations of the first resonant and anti-resonant frequencies of MR are deduced from the undamped propagation characteristics of porous *** first resonant and anti-resonance sound absorption coefficients are induced according to the theoretical formula for the acoustic characteristic parameters of MR,and the former is modified while the energy consumption at resonance is taken into *** good agreement between the calculation results of these resonant sound absorption parameters and the experimental results verifies the effectiveness of this calculation method for the performance evaluation of MR as a sound absorption material.

关键词： metal rubber(MR)material resonant sound absorption parameters acoustic characteristic parameters

The role of interleukin-18 in glioblastoma pathology implies therapeutic potential of two old drugs-disulfiram and ritonavir

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Chinese Journal of Cancer 2015年第4期34卷 161-165页

作者： Richard e Kast International Initiative for Accelerated Improvement of Glioblastoma Care Study Center

Based on reporting in the last several years,an impressive but dismal list of cytotoxic chemotherapies that fail to prolong the median overall survival of patients with glioblastoma has prompted the development of treatment protocols designed to interfere with growth-facilitating signaling systems by using non-cytotoxic,non-oncology *** recognition of the pro-mobility stimulus,interleukin-18,as a driver of centrifugal glioblastoma cell migration allows potential treatment adjuncts with disulfiram and *** and ritonavir are well-tolerated,non-cytotoxic,non-oncology chemotherapeutic drugs that are marketed for the treatment of alcoholism and human immunodeficiency virus(HIV) infection,*** drugs exhibit an interleukin-18—inhibiting *** the favorable tolerability profile of disulfiram and ritonavir,the unlikely drug-drug interaction with temozolomide,and the poor prognosis of glioblastoma,trials of addition of disulfiram and ritonavir to current standard initial treatment of glioblastoma would be warranted.

关键词：白细胞介素-18 胶质细胞治疗方案人类免疫缺陷病毒硫病理细胞毒性治疗药物

Interaction Between Massive and Massless Gravitons by Perturbing Topological Field Theory

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Communications in Theoretical Physics 2012年第2期57卷 241-244页

作者： e.Koorambas 8A Chatzikosta 11521 AmpelokipiAthensGreece

We test the Wu gauge theory of gravity with massive gravitons in the perturbing topological field theory *** show that the computation of the correlation function between massive and massless gravitons is reported up to 4-loop and appears to be unaffected by radiative *** result ensures the stability of the linking number between massive and massless gravitons with respect to the local perturbation,a result with potential wider applications in cosmology.

关键词： gauge field quantum gravity dark matter and dark energy topological field theory

CLAS+FROST: new generation of photoproduction experiments at Jefferson Lab.

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Chinese Physics C 2009年第12期33卷 1205-1209页

作者： e. Pasyuk Arizona State University Tempe AZ 85287 USA Jefferson Laboratory Newport News VA 23606 USA

A large part of the experimental program in Hall B of the Jefferson Lab is dedicated to baryon spectroscopy. Photoproduction experiments are essential part of this program. CeBAF Large Acceptance Spectrometer （CLAS） and availability of circularly and linearly polarized tagged photon beams provide unique conditions for this type of experiments. Recent addition of the Frozen Spin Target （FROST） gives a remarkable opportunity to measure double and triple polarization observables for different pseudo-scalar meson photopro- duction processes. For the first time, a complete or nearly complete experiment becomes possible and will allow model independent extraction of the reaction amplitude. An overview of the experiment and its current status is presented.

关键词： photoproduction double polarization baryon resonance

Vector-mode multiplexing brings an additional approach for capacity growth in optical fibers

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Light(Science & Applications) 2018年第1期7卷 1031-1033页

作者： Alan e Willner Department of electrical engineering University of Southern CaliforniaLos AngelesCA 90089-2565USA

The paper‘Direct fiber vector eigenmode multiplexing transmission seeded by integrated optical vortex emitters’by J Liu1 has successfully demonstrated that different data-carrying vector modes can be used to increase capacity through data-carrying,full-vectorial fiber eigenmode multiplexing communications in circular optical *** work uses compact,integrated optics to achieve capacity scaling by directly exploiting orthogonal spatial vector eigenmodes.

关键词： optical fiber multiplexing

WNT/β-catenin pathway and circadian rhythms in obsessive-compulsive disorder

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Neural Regeneration Research 2022年第10期17卷 2126-2130页

作者： Alexandre Vallée Yves Lecarpentier Jean-Noël Vallée Department of Clinical Research and Innovation(DRCI) Foch HospitalSuresnesFrance Centre de Recherche Clinique Grand Hôpital de l’Est Francilien(GHEF)MeauxFrance Laboratoire de Mathématiques et Applications(LMA) Universitéde PoitiersPoitiersFrance Centre Hospitalier Universitaire(CHU)Amiens Picardie UniversitéPicardie Jules Verne(UPJV)AmiensFrance

The neuropsychiatric disease named obsessive-compulsive disorder is composed by obsessions and/or ***-compulsive disorder etiologies are ***,numerous mechanisms in several localizations are *** studies showed that both glutamate,inflammatory factors and oxidative stress could have main functions in obsessive-compulsive *** synthase kinase-3β,the major negative controller of the WNT/β-catenin pathway is upregulated in obsessive-compulsive *** obsessive-compulsive disorder,some studies presented the actions of the different circadian clock ***/β-catenin pathway and circadian clock genes appear to be ***,this review focuses on the interaction between circadian clock genes and the WNT/β-catenin pathway in obsessive-compulsive disorder.

关键词： circadian rhythms glutamatergic pathway inflammation obsessive-compulsive disorder oxidative stress WNT/β-catenin pathway

The Coupling Constants *** electroweak Model with an SU（4）PS ×SU（4）eW Unification Symmetry

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Communications in Theoretical Physics 2007年第5期47卷 879-882页

作者： A.e. Bernardini Department of Cosmic Rays and Chronology State University of Campinas P.O. Box 6165 13083-970 Campinas SPBrazil

We introduce the sequence of spontaneous symmetry breaking of a coupling between Pati-Salam and electroweak symmetries SU（ 4 ）PS × SU（ 4 ）eW in order to establish a mathematically consistent relation among the coupling constants at grand unification energy scale. With the values of baryon minus lepton quantum numbers of known quarks and leptons, by including right-handed neutrinos, we can lind the mixing angle relations at different energy levels up to the electromagnetic U（1）eM scale.

关键词： electroweak unification gauge symmetry coupling constants