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Neglected tropical diseases in Brazilian children and adolescents:data analysis from 2009 to 2013

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Infectious Diseases of Poverty 2017年第1期6卷 1369-1378页

作者： Eduardo Brandao Sebastian romero maria Almerice Lopes da Silva Fred Luciano Neves Santos National Reference Service for Filariasis Aggeu Magalhães Institute(Fiocruz-PE)RecifePernambucoBrazil Faculty of Medical Sciences National University of RosarioRosarioSanta FeArgentina Laboratory of Communicable Diseases Parasitology DepartmentAggeu Magalhaes Institute(Fiocruz-PE)RecifePernambucoBrazil Laboratory of Pathology and Bio-Intervention Goncalo Moniz Institute(Fiocruz-BA)SalvadorBahiaBrazil

Background:Neglected tropical diseases(NTDs)prevail in conditions of poverty and contribute to the maintenance of social *** of the NTDs prioritized by the Brazilian Ministry of Health,four parasitic infections require mandatory notification:acute Chagas disease,leishmaniasis,malaria,and *** on the behaviour of these NTDs in the young population are currently *** study seeks to analyse the epidemiological aspects of these parasitic infections in children and adolescents in ***:A retrospective exploratory ecological study was conducted.A spatial analysis of the cases reported between 2009 and 2013 in individuals aged between 0 and 19 years that were notified through the Health Notification Aggravation Information System(SINAN)was ***:In total,64,567 cases of cutaneous and visceral leishmaniasis,malaria,schistosomiasis,and acute Chagas disease were recorded in the SINAN database,representing a rate of 20.15 cases per 100,000 *** average age of the cases was 12.2 years and 62.32%were *** hundred and three deaths related to these obligatorily reported parasites were recorded,indicating a case fatality rate of 0.62%.Visceral leishmaniasis and acute Chagas disease had the highest rates of lethality.A heterogeneous spatial distribution of the studied parasites was ***:The number of cases and the lethality rate described in this study show that these diseases still represent a serious problem for public health in *** points to the need to encourage new research and the reformulation of social,economic,and public health policies aimed at ensuring better health and living conditions for all individuals,especially those among the populations considered vulnerable,as is the case of the young.

关键词： Parasites Visceral leishmaniasis Malaria Schistosomiasis Chagas disease Disease notification Residence characteristics Brazil

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On Rigid 2-Step Nilpotent Lie Algebras

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Algebra Colloquium 2018年第2期25卷 349-360页

作者： maria Alejandra Alvarez Departamento de Matematicas Facultad de Ciencias Basicas Universidad de Antofagasta Casilla 170 Antofagasta Chile

In this note we consider 2-step nilpotent Lie algebras and give a criterion for the rigidity of this class in the variety N2n of 2-step nilpotent Lie algebras of dimension n. We apply this criterion to prove that ever... 详细信息

关键词： nilpotent Lie algebras variety of Lie algebras deformations cohomology,nilradicals

Two methodological approaches to assess the seismic vulnerability of masonry bridges

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Journal of Traffic and Transportation Engineering(English Edition) 2019年第1期6卷 49-64页

作者： Diego maria Barbieri Department of Civil and Environmental Engineering Norwegian University of Science and Technology Department of Civil Constructional and Environmental Engineering Sapienza University of Rome

This work describes the seismic vulnerability assessment of a railway masonry arch *** conservation state is initially investigated by means of a thorough field and laboratory test campaign, comprising destructive and non-destructive tests. Two different methods are used to evaluate the bridge seismic vulnerability. The first method adopts a deterministic approach and corresponds to a single non-linear static analysis, performed as described in the Eurocodes. The second method employs a probabilistic approach and considers the variability of the involved mechanical parameters(structure geometry and properties of the building materials) and seismic parameters(intensity of the action and site conditions). This method associates the probabilistic values of ground acceleration exceedance to the estimated seismic vulnerability. This is shown by means of fragility curves, which allow to take into consideration the uncertainty of the various components involved in the definition of the seismic vulnerability and display the seismic damage scenarios. Currently no code requires to perform this calculation procedure. In addition,this work compares the values of masonry mechanical properties specified in the Eurocodes with those obtained in an extensive investigation campaign involving more than one hundred masonry bridges. Compressive strength and longitudinal elasticity modulus are the relevant mechanical parameters investigated. The outcomes of this research can contribute to the development of a more efficient maintenance system of the masonry bridges belonging to the railway network. This has an important role when it comes to establishing the priority order of assets intervention.

关键词： Railway masonry arch bridge Bridge maintenance and conservation Masonry mechanical parameters Non-linear static analysis Seismic fragility Finite element analysis

Oxygen-evolving SnO_(2)-based Ceramic Anodes in Aluminium Electrolysis

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Chemical Research in Chinese Universities 2014年第5期30卷 800-805页

作者： POPESCU Ana-maria Ilie Murgulescu Institute of Physical Chemistry of the Romanian Academy 060021-Bucharest Romania

This study deals with SnO2-based ceramic anodes doped with Sb203 and CuO, aiming at contributing new data regarding their electrochemical behavior in cryolite melts. The performances of the anodes were evaluated by anodic polarization, cyclic voltammetry, and current efficiency and corrosion measurements. The investigation proves that the anodic process of SnO2-based inert anodes occurs at a low overvoltage and the oxygen discharge takes place in one step with an exchange of two electrons. The current efficiency and corrosion were proved to be dependent on the electrolysis parameters and composition of electrolysis bath. For a long term electrolysis, the dissolution of the anode in the cryolite-alumina melt produced small aluminium contamination（ca. 0.2%, mass fraction）.

关键词： Inert anode Aluminium electrolysis Polarization Voltammetry

Recent progress on bimetallic NiCo and CoFe based electrocatalysts for alkaline oxygen evolution reaction: A review

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Journal of Energy Chemistry 2022年第4期31卷 101-137页

作者： Gebrehiwet Abrham Gebreslase maria Victoria Martínez-Huerta maria Jesus Lázaro Instituto de Carboquímica CSIC.Miguel LuesmaCastán 450018ZaragozaSpain Instituto de Catálisis y Petroleoquímica CSIC.Marie Curie 228049MadridSpain

The deployment of hydrogen as an energy carrier is found to be a vital alternative fuel for the future. It is expected that water electrolysis, powered by renewable energy sources, be able to scale-up hydrogen production. However, the reaction kinetic of oxygen evolution reaction(OER) is a sluggish process, which predominantly limits the efficiency of water electrolysis. This review recapitulates the recent progress and efforts made in the design and development of two selected earth-abundant bimetallic electrocatalysts(Ni Co and Co Fe) for alkaline OER. Each bimetal electrocatalyst is thoroughly outlined and discussed in five sub-sections, including bimetal(oxy) hydroxides, Layered double hydroxides(LDHs) structures,oxides, composites, alloy and nanostructured electrocatalysts, and assembled with ***, a brief introduction to an in situ/operando characterization techniques and advantages for monitoring the structure of the electrocatalysts is provided. Finally, a summary outlining the challenges and conceivable approaches to advance OER performance is highlighted and discussed.

关键词： Water electrolysis Oxygen evolution reaction Bimetallic electrocatalyst Nickel Cobalt and iron

Insular mammalian fauna dynamics and paleogeography:A lesson from the Western Mediterranean islands

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Integrative Zoology 2018年第1期13卷 2-20页

作者： maria Rita PALOMBO Department of Earth Science Sapienza University of RomeRomaItaly CNR-IGAG Monterotondo(Roma)Italy

Since the time of Darwin(1859)and Wallace(1869),islands have been regarded by scientists as a prime target for scrutinizing the forces that may influence evolution and diversification and important elements in biogeographic *** research aims to scrutinize whether and to what extent the composition and structure of past mammal insular faunas and their changes through time may provide sound clues for inferring the paleogeographical evolution of a *** a case study,I critically analyzed the dynamics shown by the Plio-Pleistocene mammalian fauna of 3 Western Mediterranean insular districts,the Balearic Islands,Sardinia and Sicily,each characterized by its own peculiar paleobiogeographical evolutionary *** revision of faunas and the critical analysis of the dispersal ability of the ancestors of island settlers have allowed hypothesizing on the time and mode of island *** results obtained confirm that the early isolation of the Balearic Islands from the mainland led to the establishment of an endemic fauna since the pre-Messinian Miocene(?Astaracian European Land Mammal Age,MN7/8),and that Sardinia has definitely been isolated since the Pliocene,although dispersal events led to some faunal turnovers during the *** addition,the results suggest for Sicily a complex,still imperfectly disentangled history of alternate phases of complete separation and sporadic,more or less difficult connections with southern Italy.

关键词： dispersal islands mammal Plio–Pleistocene Western Mediterranean

On the metallicity gradient in the Galactic disk

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Research in Astronomy and Astrophysics 2020年第4期20卷 123-128页

作者： Alexander Loktin maria Popova Astronomical Observatory Ural Federal UniversityEkaterinburgRussia

The problem of the chemical composition gradient in the Galactic disk is studied based on a sample of metallicity estimates of open star clusters,using Gaia DR2-improved distance estimates.A clearly non-monotonic variation was observed in the average metallicity of clusters with increasing Galactocentric *** can clearly see the metallicity jump of 0.22 in[Fe/H]at a Galactocentric distance of about9.5 kpc,which appears to be linked to the outer boundary of the thinnest and youngest component of the Galactic *** absence of a significant metallicity gradient in the internal(R10 kpc)regions of the disk demonstrates the absence of noticeable metal enrichment at times of the order of the ages corresponding to those of the disk regions under *** data show that the disk experiences noticeable metal enrichment only during the starburst *** significant dependence was identified between the average metallicity and the age of the clusters.

关键词： Galaxy:general Galaxy:disk (Galaxy:)open clusters and associations:general

Nonlinear Korn Inequalities on a Hypersurface

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Chinese Annals of Mathematics,Series B 2018年第3期39卷 513-534页

作者： maria MALIN Cristinel MARDARE Department of Mathematics University of CraiovaCraiova200585Romania Sorbonne Universite CNRSLaboratoire Jacques-Louis LionsLHLLF-75005ParisFrance

The authors establish several estimates showing that the distance in W^(1,p),1 < p < ∞,between two immersions from a domain of R^n into R^(n+1) is bounded by the distance in L^p between two matrix fields defined in terms of the first two fundamental forms associated with each immersion. These estimates generalize previous estimates obtained by the authors and P. G. Ciarlet and weaken the assumptions on the fundamental forms at the expense of replacing them by two different matrix fields.

关键词： Differential geometry Hypersurface Nonlinear shell theory

Perspective on automated in vivo drug screening using the chodl mutant zebrafish line

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Neural Regeneration Research 2022年第11期17卷 2437-2438页

作者： Ana-maria Oprisoreanu Center for Regenerative Therapies Dresden(CRTD) TU Dresden

Since the early 2000s, the popularity of zebrafish in in vivo drug screening has shown a substantial *** zebrafish has become an important screening tool covering a wide range of tissue-specific pathologies and diseas... 详细信息

关键词： fish vivo screening