检索结果-南通市图书馆

Yields of projectile fragments in sulphur-emulsion interactions at 3.7 A GeV

在线全文

学校读者我要写书评

暂无评论

Chinese Physics C 2017年第5期41卷 97-103页

作者： s.kamel W.Osman M.Fayed Physics Department Faculty of EducationAin Shams University Physics Department Faculty of ScienceCairo University

This work presents the basic characteristics of singly,doubly and heavily charged projectile fragments（PFs） emitted in inelastic interactions of ^（32）s ions with photo-emulsion nuclei at Dubna energy（3.7 A GeV）.Our experimental data are compared with the corresponding data for other projectiles at the same incident *** study of mean multiplicities of different charged PFs against the projectile mass shows a power-law *** multiplicity distributions of singly and doubly charged PFs have been fitted well with a Gaussian distribution *** yields of PFs broken up from the interactions of ^（32）s projectile nuclei with different target nuclei are *** beam energy dependence in terms of the various order moments is studied as well.

关键词： projectile nuclei emulsion multiplicity charged doubly sulphur emitted nucleus relativistic

FUZZY PREFERENCEs IN CONFLICTs

在线全文

学校读者我要写书评

暂无评论

Journal of systems science and systems Engineering 2008年第3期17卷 257-276页

作者： Mubarak s.AL-MUTAIRI Keith W.HIPEL Mohamed s.kamel Department of Computer science and Engineering Hafr Albatin Community CollegeKing Fahd University of Petroleum & MineralsHafr AlbatinSaudi Arabia Department of systems Design Engineering University of WaterlooWaterlooOntarioCanada Department of Electrical and Computer Engineering University of WaterlooWaterlooOntarioCanada

A systematic fuzzy approach is developed to model fuzziness and uncertainties in the preferences of decision makers involved in a conflict. This unique fuzzy preference formulation is used within the paradigm of the Graph Model for Conflict Resolution in which a given dispute is modeled in terms of decision makers, each decision maker＇s courses of actions or options, and each decision maker＇s preferences concerning the states or outcomes which could take place. In order to be able to determine the stability of each state for each decision maker and the possible equilibria or resolutions, a range of solution concepts describing potential human behavior under conflict are defined for use with fuzzy preferences. More specifically, strong and weak definitions of stability are provided for the solution concepts called Nash, general metarational, symmetric metarational, and sequential stability. To illustrate how these solution concepts can be conveniently used in practice, they are applied to a dispute over the contamination of an aquifer by a chemical company located in Elmira, Ontario, Canada.

关键词： Environmental conflict fuzzy sets Graph Model for Conflict Resolution preferences multiple participants

Revisiting cerebral endothelial cells in Alzheimer’s disease

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第10期20卷 2911-2912页

作者： Amira s.Hanafy Department of Neurosurgery University Hospital BonnBonnGermany

Alzheimer’s disease(AD)is the most common neurodegenerative disorder characterized by slow and progressive decline of cognitive and memory *** only approximately 5%of the cases,AD is familial,as often predisposed by genetic mutations(Hoogmartens et al.,2021),while sporadic AD accounts for approximately 95%of the *** amyloid cascade hypothesis is one of the fundamental hypotheses put out to explain AD pathogenesis as dysregulated homeostasis of amyloid-β(Aβ)peptides that leads to the accumulation of Aβplaques in the parenchyma,an anatomical hallmark of AD.

关键词： Alzheimer Aβ cerebral

Emerging structures and dynamic mechanisms ofγ-secretase for Alzheimer’s disease

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第1期20卷 174-180页

作者： Yinglong Miao Michael s.Wolfe Computational Medicine Program and Department of Pharmacology University of North Carolina–Chapel HillChapel HillNCUSA Department of Medicinal Chemistry University of KansasLawrenceKSUSA

γ-secretase,called“the proteasome of the membrane,”is a membrane-embedded protease complex that cleaves 150+peptide substrates with central roles in biology and medicine,including amyloid precursor protein and the Notch family of cell-surface *** inγ-secretase and amyloid precursor protein lead to early-onset familial Alzheimer’s disease.γ-secretase has thus served as a critical drug target for treating familial Alzheimer’s disease and the more common late-onset Alzheimer’s disease as ***,critical gaps remain in understanding the mechanisms of processive proteolysis of substrates,the effects of familial Alzheimer’s disease mutations,and allosteric modulation of substrate cleavage byγ-*** this review,we focus on recent studies of structural dynamic mechanisms ofγ-*** mechanisms,including the“Fit-stay-Trim,”“sliding-Unwinding,”and“Tilting-Unwinding,”have been proposed for substrate proteolysis of amyloid precursor protein byγ-secretase based on all-atom molecular dynamics *** an incorrect registry of the Notch1 substrate was identified in the cryo-electron microscopy structure of Notch1-boundγ-secretase,molecular dynamics simulations on a resolved model of Notch1-boundγ-secretase that was reconstructed using the amyloid precursor protein-boundγ-secretase as a template successfully capturedγ-secretase activation for proper cleavages of both wildtype and mutant Notch,being consistent with biochemical experimental *** approach could be potentially applied to decipher the processing mechanisms of various substrates byγ-*** addition,controversy over the effects of familial Alzheimer’s disease mutations,particularly the issue of whether they stabilize or destabilizeγ-secretase-substrate complexes,is ***,an outlook is provided for future studies ofγ-secretase,including pathways of substrate binding and product release,effects of modulators on familial Alzheimer’s disease mutations

关键词： Alzheimer’s disease amyloid precursor protein cryo-EM structures drug design intramembrane proteolysis molecular dynamics Notch

Complementary roles of glial cells in generating region-specific neuroinflammatory responses and phagocytosis in Parkinson’s disease

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第10期20卷 2917-2918页

作者： Leyre Ayerra Maria s.Aymerich Universidad de Navarra Facultad de CienciasDepartamento de Bioquímica y GenéticaPamplonaSpain CIMA-Universidad de Navarra PamplonaSpain IdisNA Instituto de Investigación Sanitaria de NavarraPamplonaSpain

Neuroinflammation is associated with Parkinson’s disease:Reactive gliosis and neuroinflammation are hallmarks of Parkinson’s disease(PD),a multisystem neurodegenerative disorder characterized by a progressive loss of dopaminergic *** has long been considered a mere consequence of neuronal loss,but whether it promotes PD or is a key player in disease progression remains to be *** leukocyte antigen.

关键词： inflammation leukocyte generating

Pressure-broadened atomic Li(2s-2p) line perturbed by ground neon atoms in the spectral wings and core

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2017年第7期26卷 67-74页

作者： sabri Bouchoucha kamel Alioua Moncef Bouledroua Physics Department Badji Mokhtar University Laboratoire de Physique de la Matière et du Rayonnement Chérif Messaidia University Laboratoire de Physique des Rayonnements Badji Mokhtar University

Full quantum calculations are performed to investigate the broadening profiles of the atomic lithium Li（2s-2p） resonance line induced by interactions with ground Ne（2s^22p^6） perturbers in the spectral wings and core. The X^2Σ~＋, A^2Π,and B^2Σ~＋ potential-energy curves of the two first low lying Li Ne molecular states, as well as the corresponding transition dipole moments, are determined with ab initio methods based on the sA-CAssCF-MRCI calculations. The emission and absorption coefficients in the wavelength range 550-800 nm and the line-core width and shift are investigated theoretically for temperatures ranging from 130 K to 3000 K. Their temperature dependence is analyzed, and the obtained results are compared with the previous experimental measurements and theoretical works.

关键词： pressure broadening emission and absorption coefficients linewidth lineshift

ON RUBIN's HARMONIC ANALYsIs AND ITs RELATED POsITIVE DEFINITE FUNCTIONs

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica scientia 2012年第5期32卷 1851-1874页

作者： Nji Bettaibi kamel Mezlini Moufida El Gunichi College of science Qassim UniversityBuridaKingdom of Saudi Arabia Institute suprieur des sciences Appliques et de la Technologie de Mateur Route de TabarkaMateur7030Tunisia Facult des sciences de Tunis Campus Universitaire TunisEl Manar2092 TunisTunisia

In this paper,a new formulation of the Rubin’s q-translation is given,which leads to a reliable q-harmonic ***,related q-positive definite functions are introduced and studied,and a Bochner’s theorem is proved.

关键词： q-harmonic analysis definite positive function Bochner theorem

Deciphering the mechanobiology of microglia in traumatic brain injury with advanced microsystems

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第8期20卷 2304-2306页

作者： Anthony Procès sylvain Gabriele Univ.Grenoble Alpes InsermU1216Grenoble Institut des NeurosciencesGrenobleFrance Mechanobiology&Biomaterials Group CIRMAPResearch Institute for BiosciencesUniversity of MonsMonsBelgium

Advanced microsystems in traumatic brain injury research:Traumatic brain injury(TBI)results from a mechanical insult to the brain,leading to neuronal and axonal damage and subsequently causing a secondary *** minutes ... 详细信息

关键词： traumatic injury damage

Monitoring the transformation in New Cairo’s urban vitality and the accompanying social and economic phenomena

在线全文

学校读者我要写书评

暂无评论

Frontiers of Architectural Research 2023年第5期12卷 867-891页

作者： Tamir El-Khouly Asmaa Eldiasty Basil kamel Department of Architecture Faculty of EngineeringAin Shams UniversityCairo 11566Egypt Department of Architecture School of Sciences and EngineeringThe American University in CairoCairo 11835Egypt Department of Architecture Faculty of EngineeringHorus UniversityNew Damietta 34517Egypt

Many cities in Egypt have been built recently with spatial characteristics that differ structurally from the spatial configuration of the ancient Arab *** is a growing interest in understanding how social and economic phenomena related to the community are transformed in new cities,particularly those that extend from the old city,as is the case with the city of New *** have developed an analytical framework to study the effects of spatial configuration on the pace of growth of the new city and identify its characteristics in terms of phenomena related to movement and the distribution of economic activities,as well as urban vitality.A framework for combining quantitative and qualitative analysis helps in understanding phenomena related to the morphology of the development of the new *** syntactic analysis,place syntax and field observation,the spatial characteristics of the city of New Cairo were investigated,then compared with Old Cairo to determine which features were enriched in terms of the city’s vitality or what has been lost during the expansion phases,based on the planning concepts that were *** study concluded that changes in the characteristics of the spatial configurations of the new Egyptian cities by increasing the flow of vehicular traffic via wide arterial roads do not reflect the requirements of the local community,but instead impede local movement within the city and reduce the integration of its neighbourhoods,turning them into isolated *** greatest impact of this is the way in which the characteristics of society in these cities have been limited,resulting in isolation and a lack of connection with the identity of the place and the customs and traditions of the *** paper presents an analytical framework for evaluating similar cities in terms of the characteristics of this planning configuration,identifying the extent to which the old has been preserved or changed and emphasising the validity of the meth

关键词： space syntax Naturalmovement spatial configuration Urban vitality