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spatial analysis of Dengue through the reproduction numbers relating to socioeconomic features:Case studies on two Brazilian urban centers

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Infectious Disease modelling 2024年第1期9卷 142-157页

作者： Ana t.C.silva rejane C.Dorn lívia r.t.más leonardo B.l.santos lacita m.skalinski suani t.r.Pinho Departamento de Física Universidade Estadual de Feira de SantanaAv.Transnordestinas/n.Novo HorizonteFeira de Santana44036-900BABrazil Instituto de Física Universidade Federal da BahiaRua Barão de Jeremoabo s/nCampus Universitário de OndinaSalvador40170-115BABrazil Centro Nacional de monitoramento e Alertas de Desastres Naturais(CEmADEN) Estrada Dr.Altino Bondensan500São Josédos Campos12247-016SPBrazil Universidade Estadual de santa Cruz Campus Soane Nazaréde AndradeRodovia Jorge AmadoKm 16SalobrinhoIlhéus45662-900BABrazil Instituto de saúde Coletiva Universidade Federal da BahiaR.Basílio da Gamas/n-CanelaSalvador40110-140BABrazil Instituto Nacional de Ciência e tecnologia-sistemas Complexos Virtual InstitutionBrazil

the study of the propagation of infectious diseases in urban centers finds a close connection with their population's social characteristics and *** work performs a spatial analysis of dengue cases in urban centers based on the basic reproduction numbers,r0,and incidence by planning areas(PAs),as well as their correlations with the Human Development Index(HDI)and the number of *** analyzed dengue epidemics in 2002 at two Brazilian urban centers,Belo Horizonte(BH)and rio de Janeiro(rJ),using PAs as spatial *** results reveal heterogeneous spatial scenarios for both cities,with very weak correlations between r0 and both the number of trips and the HDI;in BH,the values of r0 show a less spatial heterogeneous pattern than in *** BH,there are moderate correlations between incidence and both the number of trips and the HDI;meanwhile,they weakly correlate for ***,the absence of strong correlations between the considered measures indicates that the transmission process should be treated considering the city as a whole.

关键词： Dengue mathematical mode lBasic reproduction number Urban mobility Urban indices

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Ion heat transport in electron cyclotron resonance heated l-mode plasma on the t-10 tokamak

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Plasma science and technology 2024年第4期26卷 52-60页

作者： V.A.KrUPIN m.r.NUrGAlIEV A.r.NEmEts I.A.ZEmtsOV s.D.sUNtsOV t.B.mYAltON D.s.sErGEEV N.A.sOlOVEV D.V.sArYCHEV D.V.rYJAKOV s.N.tUGArINOV N.N.NAUmENKO National research Centre“Kurchatov Institute” Moscow 123182Russia Bauman moscow state technical University Moscow 105005Russia Institution“Project Center ItEr” Moscow 123098Russia JsC“sOlAr” Minsk 220034Belarus

Anomalous ion heat transport is analyzed in the t-10 tokamak plasma heated with electron cyclotron resonance heating(ECrH) in second-harmonic extra-ordinary mode. Predictive modeling with empirical scaling for Ohmical heat conductivity shows that in ECrH plasmas the calculated ion temperature could be overestimated, so an increase of anomalous ion heat transport is required. to study this effect two scans are presented: over the EC resonance position and over the ECrH power. the EC resonance position varies from the high-field side to the low-field side by variation of the toroidal magnetic field. the scan over the heating power is presented with on-axis and mixed ECrH regimes. Discharges with high anomalous ion heat transport are obtained in all considered regimes. In these discharges the power balance ion heat conductivity exceeds the neoclassical level by up to 10 times. the high ion heat transport regimes are distinguished by three parameters: the ratio te/ti, the normalized electron density gradient r/■, and the ion–ion collisionality νii~*. the combination of high te/ti, high νii~*, and r/■=6-10 results in values of normalized anomalous ion heat fluxes up to 10 times higher than in the low transport scenario.

关键词： tokamak l-mode electron cyclotron resonance heating ion heat transport

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Kinematic analysis of flexible bipedal robotic systems

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Applied mathematics and mechanics(English Edition) 2024年第5期45卷 795-818页

作者： r.FAZEl A.m.sHAFEI s.r.NEKOO Department of mechanical Engineering Shahid Bahonar University of KermanKerman ***Iran Departamento de Ingenieria de sistemas y Automatica Escuela Técnica Superior de IngenieriaUniversidad de SevillaSeville 41092Spain

In spite of its intrinsic complexities,the passive gait of bipedal robots on a sloping ramp is a subject of interest for numerous *** distinguishes the present research from similar works is the consideration of flexibility in the constituent links of this type of robotic *** is not a far-fetched assumption because in the transient(impact)phase,due to the impulsive forces which are applied to the system,the likelihood of exciting the vibration modes increases ***,the human leg bones that are involved in walking are supported by viscoelastic muscles and ***,for achieving more exact results,it is essential to model the robot links with viscoelastic *** this end,the Gibbs-Appell formulation and Newton's kinematic impact law are used to derive the most general form of the system's dynamic equations in the swing and transient phases of *** most important issue in the passive walking motion of bipedal robots is the determination of the initial robot configuration with which the system could accomplish a periodic and stable gait solely under the effect of gravitational *** extremely unstable nature of the system studied in this paper and the vibrations caused by the impulsive forces induced by the impact of robot feet with the inclined surface are some of the very serious challenges encountered for achieving the above-mentioned *** overcome such challenges,an innovative method that uses a combination of the linearized equations of motion in the swing phase and the algebraic motion equations in the transition phase is presented in this paper to obtain an eigenvalue *** solving this problem,the suitable initial conditions that are necessary for the passive gait of this bipedal robot on a sloping surface are *** effects of the characteristic parameters of elastic links including the modulus of elasticity and the Kelvin-Voigt coefficient on the walking stability of this type of

关键词： bipedal robot flexible link swing phase transient phase eigenvalue problem Kelvin-Voigt coefficient

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mathematical modelling of ball and plate system with experimental and correlation function-based model validation

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Control theory and technology 2024年第2期22卷 326-341页

作者： t.r.Dil Kumar s.J.mija Department of Electrical Engineering National Institute of Technology CalicutKozhikode673601KeralaIndia

the ball and plate system is an inherently nonlinear under actuated benchmark system used for validating the performance of various control schemes. A mathematical model depicting the dynamics close to that of the system is very much required for such a test bed. In this correspondence, the complete nonlinear model, a simplified nonlinear model, and a linearized model of the ball and plate system are developed. the system comprises a ball and plate mechanism and a rotary servo unit. the ball and plate mechanism is modelled using the Euler–lagrange method, whereas the rotary servo subsystem is modelled from the first principles. the nonlinear model of the combined system is developed by including the dynamics of the servo motor with gear and rolling resistance between the ball and the plate. the simplified nonlinear model of the system is obtained with suitable assumptions. the model is linearized around the operating point using the Jacobian. the validity of the developed models is investigated through correlation function analysis. the open-loop response of the three models, viz., nonlinear, simplified nonlinear, and linearized models, is analyzed in the mAtlAB/simulink platform. since the open-loop system is unstable, the experimental validation of the model is performed with a double-loop PsO (particle swarm optimization) PID control scheme.

关键词： Ball and plate system Correlation function model validation Particle swarm optimization(PsO) PsO PID controller

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QCD sum rule study of J^(P)=1^(±)exotic states with two heavy quarks in the molecular picture

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Chinese Physics C 2024年第6期48卷 31-37页

作者： t.m.Aliev s.Bilmis m.savcı Department of Physics Middle East Technical UniversityAnkara06800Turkey tUBItAK UlAKBIm Ankara06510Turkey

In this study,the spectroscopic parameters of exotic molecular states composed of mesons containing two heavy quarks(scalar-axial and pseudoscalar-axial meson combinations)are investigated within the QCD sum *** findings reveal that molecular states containing charm quarks do not form bound states,whereas states with b-quarks can form exotic molecular *** observation has significant implications for understanding the structure of these exotic states.

关键词： QCD sum rules exotic mesons molecular states

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Analysis of strong decays of sU(3)partners ofΩ(2012)baryon

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Chinese Physics C 2024年第8期48卷 34-41页

作者： t.m.Aliev s.Bilmis m.savci Department of Physics Middle East Technical UniversityAnkara 06800Turkey tUBItAK UlAKBIm Ankara 06510Turkey

We estimate the coupling constants and decay widths of the sU(3)partners of theΩ(2012)hyperon,as discovered by the BEllE Collaboration,using the distribution amplitudes of the octet baryons within the light cone sum rules *** study includes a comparison of the obtained results for the relevant decay widths with those derived within the framework of the flavor sU(3)*** observe a good agreement between the predictions of both ***,our result on the decay width ofΩ→ΞK is compatible with the existing experimental result within the uncertainties of the model *** results can provide helpful insights for determining the nature of the sU(3)partners of theΩ(2012)baryon.

关键词： coupling constants light cone sum rule hyperon

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Impact of Paenibacillus elgii supernatant on screening bacterial strains with potential for biotechnological applications

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Engineering microbiology 2024年第3期4卷 1-15页

作者： I.C.Cunha-Ferreira C.s.Vizzotto t.D.Frederico J.Peixoto l.s Carvalho m.r.tótola r.H.Krüger laboratory of Enzymology Department of Cellular BiologyUniversity of Brasília(UNB)Brasília70910-900Brazil laboratory of Environmental sanitation Department of Civil and Environmental EngineeringUniversity of Brasília(UNB)Brasília70910-900Brazil laboratório de Biotecnologia e Biodiversidade para o meio Ambiente Universidade Federal de Viçosa(UFV)Viçosa36570-900Brazil

the biotechnological industry faces a crucial demand for novel bioactive compounds,particularly antimicrobial agents,to address the rising challenge of bacterial resistance to current available *** strate-gies for cultivating naturally occurring microorganisms often limit the discovery of novel antimicrobial *** study presents a protocol for targeted selection of bacterial strains using the supernatant of Paenibacillus el-gii,which produces abundant signal molecules and antimicrobial *** samples were inoculated in these enriched culture media to selectively cultivate bacteria resistant to the supernatant,indicating their potential to produce similar *** bacterial strains isolated through this method were assessed for their antibac-terial *** addition,the functional annotation of the genome of one of these strains revealed several gene clusters of biotechnological *** study highlights the effectiveness of using this approach for selective cultivation of microorganisms with potential for biotechnological applications.

关键词： Prospecting supernatant Antibacterial activity

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the secondary injury cascade after spinal cord injury:an analysis of local cytokine/chemokine regulation

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Neural regeneration research 2024年第6期19卷 1308-1317页

作者： Daniel J.Hellenbrand Charles m.Quinn Zachariah J.Piper ryan t.Elder raveena r.mishra taylor l.marti Phoebe m.Omuro rylie m.roddick Jae sung lee William l.murphy Amgad s.Hanna Department of Neurosurgery University of Wisconsin-Madison School of Medicine and Public HealthMadisonWIUSA Department of Biomedical Engineering University of Wisconsin-MadisonMadisonWIUSA Department of Orthopedics and rehabilitation University of Wisconsin-MadisonMadisonWIUSA Department of materials science and Engineering University of Wisconsin-MadisonMadisonWIUSA Forward BIO Institute University of Wisconsin-MadisonMadisonWIUSA

After spinal cord injury,there is an extensive infiltration of immune cells,which exacerbates the injury and leads to further neural ***,a major aim of current research involves targeting the immune response as a treatment for spinal cord *** much research has been performed analyzing the complex inflammatory process following spinal cord injury,there remain major discrepancies within previous literature regarding the timeline of local cytokine *** objectives of this study were to establish an overview of the timeline of cytokine regulation for 2 weeks after spinal cord injury,identify sexual dimorphisms in terms of cytokine levels,and determine local cytokines that significantly change based on the severity of spinal cord *** were inflicted with either a mild contusion,moderate contusion,severe contusion,or complete transection,7 mm of spinal cord centered on the injury was harvested at varying times post-injury,and tissue homogenates were analyzed with a Cytokine/Chemokine 27-Plex *** demonstrated pro-inflammatory cytokines including tumor necrosis factorα,interleukin-1β,and interleukin-6 were all upregulated after spinal cord injury,but returned to uninjured levels within approximately 24 hours post-injury,while chemokines including monocyte chemoattractant protein-1 remained upregulated for days *** contrast,several anti-inflammatory cytokines and growth factors including interleukin-10 and vascular endothelial growth factor were downregulated by 7 days *** spinal cord injury,tissue inhibitor of metalloproteinase-1,which specifically affects astrocytes involved in glial scar development,increased more than all other cytokines tested,reaching 26.9-fold higher than uninjured *** a mild injury,11 cytokines demonstrated sexual dimorphisms;however,after a severe contusion only leptin levels were different between female and male *** conclusion,pro-inflammatory cytokines in

关键词： astrocytes chemokines cytokines inflammation macrophages microglia secondary damage spinal cord injury

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Development of an ultrathin liquid sheet target for laser ion acceleration at high repetition rates in the kilohertz range

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High Power laser science and Engineering 2024年第3期12卷 134-145页

作者： m.Füle A.P.Kovács t.Gilinger m.Karnok P.Gaál s.Figul G.marowsky K.Osvay National laser-Initiated transmutation laboratory University of SzegedSzegedHungary Department of Experimental Physics University of SzegedSzegedHungary ElI AlPs ELI-HU Non-Profit Ltd.SzegedHungary Department of Optics and Quantum Electronics University of SzegedSzegedHungary Advanced microfluidic systems GmbH GöttingenGermany

A colliding microjet liquid sheet target system was developed and tested for pairs of round nozzles of 10,11 and 18μm in *** sheet's position stability was found to be better than a few *** interaction with 50 mJ laser pulses,the 18μm jet has a resonance amplitude of 16μm at a repetition rate of 33 Hz,while towards 100 Hz it converges to 10μm for all nozzles.A white-light interferometric system was developed to measure the liquid sheet thickness in the target chamber both in air and in vacuum,with a measurement range of 182 nm±1μm and an accuracy of±3%.the overall shape and 3D shape of the sheet follow the Hasson±Peck model in *** vacuum versus air,the sheet gradually loses 10%of its thickness,so the thinnest sheet achieved was below 200 nm at a vacuum level of 10±4mbar,and remained stable for several hours of operation.

关键词： diagnostics laser ion acceleration nanometric liquid sheet targets vacuum test

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Generation of polarized electron beams through self-injection in the interaction of a laser with a pre-polarized plasma

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High Power laser science and Engineering 2024年第3期12卷 62-68页

作者： l.r.Yin X.F.li Y.J.Gu N.Cao Q.Kong m.Büscher s.m.Weng m.Chen Z.m.sheng Key laboratory of Nuclear Physics and Ion-beam Application(moE) Institute of Modern PhysicsDepartment of Nuclear Science and TechnologyFudan UniversityShanghaiChina state Key laboratory of High Field laser Physics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaiChina sANKEN(Institute of scientific and Industrial research) Osaka UniversityOsakaJapan sichuan research Institute Shanghai Jiao Tong UniversityChengduChina Peter Grünberg Institut(PGI-6) Forschungszentrum JülichJülichGermany Institut für laser-und Plasmaphysik Heinrich-Heine-Universität DüsseldorfDüsseldorfGermany Key laboratory for laser Plasmas(moE) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghaiChina Collaborative Innovation Center of IFsA Shanghai Jiao Tong UniversityShanghaiChina tsung-Dao lee Institute Shanghai Jiao Tong UniversityShanghaiChina

Polarized electron beam production via laser wakefield acceleration in pre-polarized plasma is investigated by particlein-cell *** evolution of the electron beam polarization is studied based on the thomas±Bargmann±michel±telegdi equation for the transverse and longitudinal self-injection,and the depolarization process is found to be influenced by the injection *** the case of transverse self-injection,as found typically in the bubble regime,the spin precession of the accelerated electrons is mainly influenced by the ***,in the case of longitudinal injection in the quasi-1D regime(for example,*** et al.,***.110,135002(2013)),the direction of electron spin oscillates in the laser *** the electrons move around the laser axis,the net influence of the laser field is nearly zero and the contribution of the wakefield can be ***,an ultra-short electron beam with polarization of 99%can be obtained using longitudinal self-injection.

关键词： laser wakefield acceleration longitudinal self-injection particle-in-cell simulation polarized electron beam

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