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Majority-Vote on Undirected Barab´asi-Albert Networks

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Communications in Computational Physics 2007年第2期2卷 358-366页

作者： f.W.S.lima Departamento de f´ısica Universidade Federal do Piau´ı57072-970 Teresina PIBrazil.

On Barab´asi-Albert networks with z neighbours selected by each added site,the Ising model was seen to show a spontaneous *** spontaneous magnetisation was found below a critical temperature which increases logarithmically with system *** these networks the majority-vote model with noise is now studied through Monte Carlo ***,in this model,the order-disorder phase transition of the order parameter is well defined in this system and this was not found to increase logarithmically with system *** calculate the value of the critical noise parameter qc for several values of connectivity z of the undirected Barab´asiAlbert *** critical exponentesβ/ν,γ/νand 1/νwere also calculated for several values of z.

关键词： Monte Carlo simulation vote networks nonequilibrium.

Representation of robotic fractional dynamics in the pseudo phase plane

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Acta Mechanica Sinica 2011年第1期27卷 28-35页

作者： Miguel f.M.lima J.A.Tenreiro Machado School of Technology of Viseu Dept.of Electrical Engineering Campus Politécnico de Repeses Institute of Engineering of Porto Dept.of Electrical Engineering Rua Dr.António Bernardino de Almeida

This paper analyses robotic signals in the perspective of fractional dynamics and the pseudo phase plane （PPP）.It is shown that the spectra of several experimental signals can be approximated by trend lines whose slope characterizes their fractional *** the PPP reconstruction of each signal,the time lags are calculated through the fractal ***,to obtain a smooth PPP,the noisy signals are filtered through *** behavior of the spectra reveals a relationship with the fractal dimension of the PPP and the corresponding time delay.

关键词： Pseudo phase plane fractional calculus Mutual information fractal dimension Robotics

Critical Behaviour of the Ising S=1/2 and S=1 Model on(3,4,6,4)and(3,3,3,3,6)Archimedean Lattices

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Communications in Computational Physics 2011年第9期10卷 912-919页

作者： f.W.S.lima J.Mostowicz K.Malarz Dietrich Stauffer Computational Physics Lab Departamento de FisicaUniversidade Federal do Piaui64049-550 TeresinaPiauiBrazil faculty of Physics and Applied Computer Science AGH University of Science and Technologyal.Mickiewicza 30PL-30059 KrakowPoland.

We investigate the critical properties of the Ising S=1/2 and S=1 model on(3,4,6,4)and(34,6)Archimedean *** system is studied through the extensive Monte Carlo *** calculate the critical temperature as well as the critical point exponentsγ/ν,β/ν,andνbasing on finite size scaling *** calculated values of the critical temperature for S=1 are kBTC/J=1.590(3),and kBTC/J=2.100(4)for(3,4,6,4)and(34,6)Archimedean lattices,*** critical exponentsβ/ν,γ/ν,and 1/ν,for S=1 areβ/ν=0.180(20),γ/ν=1.46(8),and 1/ν=0.83(5),for(3,4,6,4)and 0.103(8),1.44(8),and 0.94(5),for(34,6)Archimedean *** results differ from the Ising S=1/2 model on(3,4,6,4),(34,6)and square *** evaluated effective dimensionality of the system for S=1 are Deff=1.82(4),for(3,4,6,4),and Deff=1.64(5)for(34,6).

关键词： Monte Carlo simulation Ising model critical exponents

A Survey of the Homotopy Properties of Inclusion of Certain Types of Configuration Spaces into the Cartesian Product

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Chinese Annals of Mathematics,Series B 2017年第6期38卷 1223-1246页

作者： Daciberg lima GONCALVES John GUASCHI Departamento de Matematica IME-USPRua do Matao 1010CEP:05508-090Sao PauloSPBrazil Normandie Universite UNICAENLaboratoire de Mathematiques Nicolas Oresme UMR CNRS 6139CS 1403214032 Caen Cedex 5France

Let X be a topological *** this survey the authors consider several types of configuration spaces,namely,the classical(usual)configuration spaces f_n(X)and D_n(X),the orbit configuration spaces f_n^G(X)and f_n^G(X)/S_nwith respect to a free action of a group G on X,and the graph configuration spaces f_n~Γ(X)and f_n~Γ(X)/H,whereΓis a graph and H is a suitable subgroup of the symmetric group S_*** ordered configuration spaces f_n(X),f_n^G(X),f_n~Γ(X)are all subsets of the n-fold Cartesian product ∏_1~nX of X with itself,and satisfy f_n^G(X)?f_n(X)?f_n~Γ(X)?∏_1~*** A denotes one of these configuration spaces,the authors analyse the difference between A and ∏_1~nXfrom a topological and homotopical point of *** principal results known in the literature concern the usual configuration *** authors are particularly interested in the homomorphism on the level of the homotopy groups of the spaces induced by the inclusionι:A-→∏_1~nX,the homotopy type of the homotopy fibre I_ιof the mapιvia certain constructions on various spaces that depend on X,and the long exact sequence in homotopy of the fibration involving I_ιand arising from the inclusionι.In this respect,if X is either a surface without boundary,in particular if X is the 2-sphere or the real projective plane,or a space whose universal covering is contractible,or an orbit space S^k/Gof the k-dimensional sphere by a free action of a Lie group G,the authors present recent results obtained by themselves for the first case,and in collaboration with Golasi′nski for the second and third *** authors also briefly indicate some older results relative to the homotopy of these spaces that are related to the problems of *** order to motivate various questions,for the remaining types of configuration spaces,a few of their basic properties are described and proved.A list of open questions and problems is given at the end of the paper.

关键词： Configuration space Equivariant configuration space fibration Homotopy fibre K(π,1)space Braid groups

Phillipsia olivacea:an uncommon Neotropical discomycete discovered in the Brazilian semiarid

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Studies in fungi 2019年第1期4卷 21-25页

作者： Lopes-lima AB Valões-Araújo JC Wartchow f Universidade federal da Paraíba Departamento de Sistemática e Ecologia/CCENCEP:58051-970João PessoaPBBRAZIL

Phillipsia olivacea is an uncommon discomycete record from *** was described originally from South Brazil and later recorded from Central America and northern South *** it is found for the first time from a montane fo... 详细信息

关键词： Ascomycota Neotropic Pezizomycetes Sarcoscyphaceae taxonomy

Adsorption of yttrium(Y^(3+)) and concentration of rare earth elements from phosphogypsum using chitin and chitin aerogel

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Journal of Rare Earths 2024年第4期42卷 775-782页

作者： Glaydson S.dos Reis Diana Pinto Sabrina f.Lütke Eder C.lima Luis f.O.Silva Irineu A.S.De Brum Guilherme L.Dotto Department of forest Biomaterials and Technology Biomass Technology Centre Swedish University of Agricultural SciencesUmeaE13Swedn Universidad De La Costa Calle 58#55-66080002BarranquillaAtlanticoColombia Research Group on Adsorptive and Catalytic Process Engineering(ENGEPAC) Federal University of Santa MariaAv.Roraima100079705900Santa MariaRSBrazil Institute of Chemistry Federal University of Rio Grande do Sul90040060Porto AlegreBrazil

Chitin powder and chitin-aerogel were prepared from shrimp wastes and used to uptake Y^(3+)from aqueous solutions and concentrate this rare earth element from phosphogypsum(PG).Chitin aerogel displays a specific surface area of 945 m^(2)/g,while chitin powder is 3.6 m^(2)/g,which largely influences its adsorption *** the adsorption in synthetic solutions,the effect of pH on Y^(3+)removal is strong for chitin powder *** contrast,no big pH influence was detected for chitin *** interactions and chelation can highlight the proposed mechanism of Y^(3+)on chitin adsorbents for the powder and ***,in addition to these interactions,pore filling/pore diffusion is the main mechanism of Y^(3+)removal in the chitin *** aerogel is efficient in concentrating 8 times the Y^(3+)from PG,a very complex *** complex chitin aerogel-Y^(3+)can be a secondary source of rare earth elements for other applications.

关键词： Rare earths Sustainable material Chitin powder Chitin porous aerogel Yttrium adsorption and recovery

Graphene's photonic and optoelectronic properties——A review

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Chinese Physics B 2020年第3期29卷 13-35页

作者： A J Wirth-lima P P Alves-Sousa W Bezerra-fraga Department of Physics Federal Institute of EducationScience and Technology of Ceara Campus SobralCearaBrazil Postgraduate Program in Electrical Engineering and Computing federal University of Ceara(U.f.C.)Sobral CearaBrazil

Due to its remarkable electrical and optical properties,graphene continues to receive more and more attention from researchers around the *** excellent advantage of graphene is the possibility of controlling its charge density,and consequently,the management of its conductivity and dielectric constant,among other *** is noteworthy that the control of these properties enables the obtaining of new optical/electronic devices,which would not exist based on conventional ***,to work in this area of science,it is necessary to have a thorough knowledge regarding the electrical/optical properties of *** this review paper,we show these graphene properties very well detailed.

关键词： absorbance conductivity dielecric constant dispersion relation

Comparisons of electrical and optical properties between graphene and silicene A review

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Chinese Physics B 2018年第2期27卷 299-313页

作者： Wirth-lima A J Silva M G Sombra A S B Laboratory of Telecommunications and Materials Science and Engineering-www.locem.ufc.br-fortaleza CearaBrazil Department of Physics Science CenterFederal University of Ceara(U.F C.)-FortalezaCear4Brazil State University of Vale do Acarau SobralCeardBrasil

Two-dimensional （2D） metamaterials are considered to be of enormous relevance to the progress of all exact sciences. Since the discovery of graphene, researchers have increasingly investigated in depth the details of electrical/optical proper- ties pertinent to other 2D metamaterials, including those relating to the silicene. In this review are included the details and comparisons of the atomic structures, energy diagram bands, substrates, charge densities, charge mobilities, conductivities, absorptions, electrical permittivities, dispersion relations of the wave vectors, and supported electromagnetic modes related to graphene and silicene. Hence, this review can help readers to acquire, recover or increase the necessary technological basis for the development of more specific studies on graphene and silicene.

关键词： graphene silicene electrical/optical properties

Reduced paraoxonase 1 activities may explain the comorbidities between temporal lobe epilepsy and depression,anxiety and psychosis

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World Journal of Psychiatry 2022年第2期12卷 308-322页

作者： Ana Paula Michelin Michael H J Maes Thitiporn Supasitthumrong Chusak Limotai andressa Keiko Matsumoto Laura de Oliveira Semeão João Victor de lima Pedrão Estefânia Gastaldello Moreira Buranee Kanchanatawan Décio Sabbatini Barbosa Health Sciences Center State University of LondrinaLondrina 86038-440Brazil Department of Psychiatry Faculty of MedicineChulalongkorn UniversityBangkok 10330Thailand Department of Psychiatry Medical University of PlovdivPlovdiv 4004Bulgaria IMPACT Strategic Research Center Deakin UniversityGeelong 3220Australia Chulalongkorn Comprehensive Epilepsy Center of Excellence King Chulalongkorn Memorial HospitalThe Thai Red Cross SocietyBangkok 10330Thailand Division of Neurology Department of MedicineFaculty of MedicineChulalongkorn UniversityBangkok 10330Thailand

BACKGROUND Temporal lobe epilepsy(TLE)is the most common focal epilepsy subtype in adults and is frequently accompanied by depression,anxiety and *** in total paraoxonase 1(PON1)status may occur in TLE and these psychiatric *** To examine PON1 status,namely Q192R PON1 genotypes and PON1 enzymatic activities,in *** We recruited 40 normal controls and 104 TLE patients,27 without comorbidities and 77 with comorbidities including mood disorders(n=25),anxiety disorders(n=27)and psychosis(n=25).RESULTS four-(chloromethyl)phenyl acetate hydrolysis(CMPAase)and arylesterase activities were significantly lower in TLE and mesial temporal sclerosis(MTS)with and without psychiatric comorbidities than those in normal *** areas under the receiver operating characteristic curve of CMPAase were 0.893(0.037)for TLE and 0.895(±0.037)for *** least squares path analysis showed that there were specific indirect effects of PON1 genotype on TLE severity(Pf TLE was significantly associated with psychopathology ***,PON1 CMPAase activity was inversely associated with Mini Mental State Examination *** The severity of TLE and comorbidities are to a large extent explained by reduced PON1 enzyme activities and by effects of the Q192R genotype,which are mediated by reduced CMPAase *** PON1 status plays a key role in the pathophysiology of TLE,MTS and psychiatric comorbidities by increasing the risk of oxidative ***1 enzyme activities are new drug targets in TLE to treat seizure frequency and psychiatric comorbidities.

关键词： Antioxidants Oxidative stress Neuroimmune Major depression Mood disorders Affective disorders