The 12 prophets dataset

The "Ajeijadinho 3D" project is an initiative supported by the University of S\~ao Paulo (Museum of Science and Dean of Culture and Extension), which involves the 3D digitization of art works of Brazilian sculptor Antonio Francisco Lisboa, better known as Aleijadinho. The project made use of advanced acquisition and processing of 3D meshes for preservation and dissemination of the cultural heritage. The dissemination occurs through a Web portal, so that the population has the opportunity to meet the art works in detail using 3D visualization and interaction. The portal address is http://www.aleijadinho3d.icmc.usp.br. The 3D acquisitions were conducted over a week at the end of July 2013 in the cities of Ouro Preto, MG, Brazil and Congonhas do Campo, MG, Brazil. The scanning was done with a special equipment supplied by company Leica Geosystems, which allowed the work to take place at distances between 10 and 30 meters, defining a non-invasive procedure, simplified logistics, and without the need for preparation or isolation of the sites. In Ouro Preto, we digitized the churches of Francisco of Assis, Our Lady of Carmo, and Our Lady of Mercy; in Congonhas do Campo we scanned the entire Sanctuary of Bom Jesus de Matosinhos and his 12 prophets. Once scanned, the art works went through a long process of preparation, which required careful handling of meshes done by experts from the University of S\~ao Paulo in partnership with company Imprimate.Comment: Full dataset online at http://aleijadinho3d.icmc.usp.br/data.htm

An electrochemical process for the production of synthetic fuels at low temperatures [Resumo]

Following work exploring the low temperature electrolysis in alkaline media, using graphite consumable anodes, from which syngas was obtained1, laboratory studies have been conducted in acid media pursuing higher efficiency in the production of hydrogen and synthetic fuels. Experiments were conducted in an own designed undivided planar cell with 25 cm2 geometrical area electrodes using a 0.5 M H2SO4 solution with and without Fe(II) additions. Fe2+ oxidizes to Fe3+ at the anode surface. The redox couple Fe3+/ Fe2+ acts as an oxidation mediator not only oxidizing the bulk and detached graphite but also the surface functional groups. The practical experimental potential for graphite oxidation is within the range for the electroxidation of the Fe redox couple giving as a result a 4-fold increase in the amount of produced CO2 at near room temperature, when using 0.025 M FeSO4

Modal analysis of a composite sandwich panel used in the structure of an hybrid bus

The rear module of an hybrid bus was redesigned in a joint effort by Volvo andIDMEC in the framework of the european project HCV Hybrid Commercial Vehicle (GrantAgreement No 234019), replacing most of the metallic frame and other components with compositesandwich panels. The redesigned bus overall weight was reduced by approximately900kg. This paper presents the numerical and experimental modal analysis of a sandwichpanel that was produced using the same materials and production process used to produce themain prototype rear component

Synthetic fuels production by graphite-assisted electrolysis

ABSTRACT: Hydrogen produced by water electrolysis is considered as the best energy carrier to adjust the balance between the generation of power source by renewable primary energy and energy demand for end-use. Further advantages are foreseen with the use of carbon-assisted electrolysis. This is due to the electrochemical participation of carbon in the reaction, the electrolysis process would potentially require about 1/3 the electrical energy with the balance of 2/3 coming from the chemical energy of carbon in comparison with conventional water electrolysis where all the energy input is electric. Carbon is oxidized to CO2 on the anode and hydrogen is produced at the cathode. Generally, carbon sources for anodic reaction are graphite, activated carbon and coal. In this work, low temperature electrochemical gasification of graphite in alkaline and acid solutions was explored, taking into account experimental conditions where the faradaic overall current has a significant contribution from carbon oxidation reactions. Results indicate adequate molar gases fraction for the production of syngas and the production of small chain hydrocarbons, obtained at laboratory prototype level.N/

Oral Self-Mutilation in Lesch-Nyhan Syndrome: A Case Report

Lesch-Nyhan syndrome (LNS) is an inherited recessive X-related disorder caused by a deficiency of the purine salvage enzyme hypoxanthine-guanine phosphoribosyltransferase. It is characterized by dystonia and compulsive self-mutilation, in particular, biting behavior on the oral mucosa, tongue, lips, fingers, and shoulders, typically before one year of age. The majority of these patients require several procedures, including dental extractions, to prevent significant secondary lesions. This article aims to report a clinical case of a 12-year-old boy with an LNS diagnosis who was referred to the Paediatric Stomatology Department of Central Lisbon University Hospital. Since the age of eight, the patient had displayed self-harm behavior, with arm and oral injuries. On evaluation, he presented with deep ulcerated lesions on the lips and tongue, with substance loss associated with a significant decrease in food intake and consequent weight loss. The management included conservative therapy with gabapentin, lorazepam, and botulinum toxin injections. A successful reduction of self-mutilation with no signs of new lesions in the oral cavity and an improvement in nutritional status were reported. The therapeutic approach is essential to provide the best quality of life for patients and their caregivers. To delay radical treatments, multiple therapeutic options can be used. The oral pathology team considered that the most appropriate therapy was botulinum toxin A injections along with therapeutic adjustment, which was effective in wound healing and self-mutilation behavior ceasing at the two-month follow-up.info:eu-repo/semantics/publishedVersio

Cyclic behaviour analysis of RC elements with plain reinforcing bars

The seismic performance of RC elements with plain reinforcing bars is particularly sensitive to the bond-slip mechanism. In this paper are described the cyclic tests performed on a two-spans beam with plain reinforcing bars and two beam-column joints with the same geometry and reinforcement detailing, one with plain reinforcing bars and the other with deformed bars. The main experimental results are presented and the comparison between the global behaviour of the two joints is established. A numerical model of the beam was developed within the OpenSees platform and calibrated with the experimental results. Particular attention was given to the bond-slip mechanism. Additional numerical analyses were developed without considering bond-slip. The comparison between the main numerical and experimental results shows the great importance of considering the bond-slip mechanism in the numerical models in order to have a precise simulation of the cyclic response of RC elements with plain reinforcing bars

ZnGa2O4:Mn2+ phosphors grown by Laser Floating Zone

Cubic zinc gallate (c-ZnGa2O4) has attracted the attention of the scientific community due to its potential phosphor applications, namely in field emission displays (FEDs) and other electroluminescent devices. Among other advantages, this oxide matrix shows superior thermal and chemical stability when compared to ZnS based phosphors. Most of the above mentioned works comprise nanostructures, thin films or pressed pellets while scarce information is found on bulk c-ZnGa2O4 material. In particular, no records were found regarding c-ZnGa2O4 crystal growth by the laser floating zone (LFZ) technique. In this work, crystalline fibres of manganese doped (0.01 mol %) zinc gallate were produced via LFZ in order to investigate its applicability in efficient phosphors. The transition metal ions are suitable activators and show some advantages over the widely used rare earths, namely at environmental and economic levels

Spectral Library of European Pegmatites, Pegmatite Minerals and Pegmatite Host-Rocks The GREENPEG Project Database

Abstract. The GREENPEG spectral database contains the spectral signature, obtained through reflectance spectroscopy studies, of European pegmatites and minerals, as well as their host rocks. Samples include Nb-Y-F (NYF) and Li-Cs-Ta (LCT)-type pegmatites and host rocks from pegmatite locations in Austria, Ireland, Norway, Portugal, and Spain. The database contains the reflectance spectra (raw and with continuum removed), sample photographs, and main absorption features automatically extracted by a self-proposed Python routine. Whenever possible, spectral mineralogy was interpreted based on the continuum-removed spectra. A detailed description of the database, its content and structure, the measuring instrument, and interoperability with Geographic Information Systems (GIS) is available in this database report. Moreover, examples of how the data can be used and interpreted are also provided. The advantages and added value of the presented dataset reside on its European scale with representative samples from pegmatites with distinct genesis, mineralogy, structure, and host rocks that can be used as a reference for pegmatite exploration at a global scale through satellite image processing, for example. The reported spectral mineral assemblages can also be of interest when considering resource estimation or ore processing. Thus, it is expected that this open dataset, available on the Zenodo platform https://doi.org/10.5281/zenodo.6518319 (Cardoso-Fernandes et al., 2022), will be a reference for distinct types of users ranging from academia to industry. </jats:p

Spectral Library of European Pegmatites, Pegmatite Minerals and Pegmatite Host-Rocks - the GREENPEG project database

The New Exploration Tools for European Pegmatite Green-Tech Resources (GREENPEG) spectral database contains the spectral signature, obtained through reflectance spectroscopy studies, of European pegmatites and minerals as well as their host rocks. Samples include pegmatites of the Nb-Y-F (NYF) and Li-Cs-Ta (LCT) chemical types and host rocks from pegmatite locations in Austria, Ireland, Norway, Portugal, and Spain. The database contains the reflectance spectra (raw and continuum-removed spectra), sample photographs, and main absorption features automatically extracted by a self-proposed Python routine. Whenever possible, spectral mineralogy was interpreted based on the continuum-removed spectra. A detailed description of the database, its content and structure, the measuring instrument, and interoperability with geographic information system (GIS) tools is available in this database report. Moreover, examples of how the data can be used and interpreted are also provided. The advantages and added value of the presented dataset reside in its European scale, with representative samples from pegmatites with distinct genesis, mineralogy, structure, and host rocks that can be used as a reference for pegmatite exploration at a global scale via, for example, satellite image processing. The reported spectral mineral assemblages can also be of interest when considering resource estimation or ore processing. Thus, it is expected that this open dataset, available on the Zenodo platform https://doi.org/10.5281/zenodo.6518318 (Cardoso-Fernandes et al., 2022b), will be a reference for distinct types of users, ranging from academia to industry

Fisiopatologia da insuficiência cardíaca

A insuficiência cardíaca (IC) é uma complexa síndrome clínica em que, em termos gerais, o coração se torna insuficiente para efetuar o adequado bombeamento sanguíneo para o corpo. A IC é uma afecção muito limitante que afeta intensamente a qualidade de vida dos pacientes devido a seus sinais (edema e estertores) e sintomas (dispnéia e fadiga), além de causar diminuição da expectativa de vida dos portadores. Apesar dos progressos na prevenção e tratamento da doença, a IC vem apresentando aumento progressivo em sua incidência e prevalência, sendo que, atualmente, é uma das principais causas de morbimortalidade em todo o mundo. Na atualidade, classifica-se a IC em dois grupos: 1) IC com diminuição da fração de ejeção (FE) ou Insuficiência Sistólica; 2) IC com FE preservada ou Insuficiência Diastólica. A IC afeta mais de 20 milhões de pessoas em todo mundo sendo que sua prevalência aumenta de acordo com o aumento da idade. Em relação à fisiopatologia da IC, objetivo primo deste trabalho, é importante salientar que a função diastólica normal permite que o coração tenha um enchimento adequado tanto em repouso quanto no esforço, sem ocorrer aumento das pressões diastólicas. Contudo, no quadro clínico correspondente à IC, os pacientes apresentam, entre outros sintomas, alterações no relaxamento cardíaco, hipertrofia miocárdica e remodelamento ventricular; defeitos-chave que alteram a rigidez do ventrículo e as pressões de enchimento. Essas alterações que ocorrem no coração, com o decorrer do tempo, podem levar a alterações sistêmicas devido à precária perfusão tecidual que faz com que as células sejam privadas dos nutrientes necessários ao seu funcionamento normal. Sendo assim, sabendo da suma importância do conhecimento sobre a IC para a melhora na qualidade de vida dos pacientes acometidos, este trabalho tem por objetivo revisar a produção literária a respeito da fisiopatologia da IC