186,313 research outputs found
A Serious Mixed-Reality Game for Training Police Officers in Tagging Crime Scenes
No full textRecognizing and collecting evidence at a crime scene are essential tasks for gathering information about perpetrators and/or the dynamics of a criminal event. Hence, the success of a crime investigation is strongly based on the ability of forensic investigators to perform these tasks. Recent studies observing and comparing the performance of experts and novices have highlighted the importance of experience and training for search and recovery strategies at crime scenes. Therefore, relevant training programs in evidence-recovery techniques should be attended by novices to improve their skills. However, the knowledge transfer between skills acquired in the classroom and their practical application in the field is a challenging task. In order to relieve this problem, this paper proposes a serious mixed-reality game, which is called TraceGame, aiming to support the training activities of novice forensic investigators by improving their skills related to the search and recovery of evidence at crime scenes. The purpose of the game is to identify the greatest number of useful traces present in a crime scene that is physically reconstructed at the training site as quickly as possible. As shown in an experimental session, TraceGame is a promising tool for supporting the training of novice forensic investigators
New recycling technologies of demolished materials for sustainable finishes: the project of concrete reuse on site in Tres Cantos, Madrid
No full text[EN] The work presented aims to analyse the feasibility of reusing concrete, once demolished from a building in Tres Cantos in Madrid, to manufacture finishing materials for buildings, as well as to design a procedure. The first phase consists of a bibliographic search on the reuse of materials, analysing the techniques adopted so far and the lines of work. The second phase related to the acquisition of data related to the production and recycling of Construction and Demolition Waste (CDW) at a European level. The third phase consists of the study of recycled aggregates resulting from demolitions or landslides, their treatment process. The fourth and final phase consists of the development of a laboratory test plan to evaluate varied materials for finishing exterior cement pavements with concrete from the demolition of the case study building. There were many conclusions and results of the project. The granulometry of the fine fraction of demolished concrete is suitable to produce non-structural products, such as building finishes and in particular non-driveway outdoor flooring. In terms of flexural and compressive strength, the mechanical behaviour of recycled mixes is lower than that of reference mixes. The recycled mixes show slightly higher capillary absorption capacities than the reference mixes, and the value is higher the greater the percentage of recycled aggregates used (a critical issue which can be resolved by pre-saturating the recycled material).Trinchese, G.; Verniero, A.; García López De La Osa, G. (2022). New recycling technologies of demolished materials for sustainable finishes: the project of concrete reuse on site in Tres Cantos, Madrid. VITRUVIO - International Journal of Architectural Technology and Sustainability. 7(2):100-111. https://doi.org/10.4995/vitruvio-ijats.2022.18844OJS10011172Bu C, Liu L, Lu X, Zhu D, Sun Y, Yu L, OuYang Y, Cao X, Wei Q. 2022. The Durability of Recycled Fine Aggregate Concrete: A Review. Materials (Basel), 15(3):1110. https://doi.org/10.3390/ma15031110Castelluccio, R., Di Domenico, G. 2015. Demolire per migliorare: le palazzine di Casacelle a Giugliano in Campania.Castelluccio, R., Vitiello, V. 2021. Città della Scienza. Le componenti di una rigenerazione urbana nella riconversione di un sito industriale.Caputo, D., Liguori, B., D’Angelo, G., Fumo, M. 2020. Materiali leganti: tradizione e innovazione per un’edilizia eco-sostenibile e bioregionale.Etxeberria, M., Gonzalez-Corominas, A., Galindo, A. 2016. Estudio de la aplicación del árido reciclado mixto en hormigón poroso y como relleno de zanjas en la ciudad de Barcelona. In Informes de la Construcción, 68(542), e142, June 2016, ISSN-L: 0020-0883. https:// doi.org/10.3989/ic.15.062Fumo, M., Violano, A., Castelluccio, R. 2017. Progettazione sperimentale sul campo: metodologia didattica ed esperienza formativa. In: Conferenza internazionale sulla tecnologia, l’istruzione e lo sviluppo, March 2017.Muscalu, M., Andrei, R., Taranu, N., Budescu, M., Lungu, I. 2013. Innovative Technologies, and Logistical Solutions for the Reuse of Demolished Concrete in the Construction of Cement Concrete Pavements, Editor Trans Tech Publications Ltd, june 2013, pagg. 259-268. https://doi.org/10.4028/www.scientific.net/AEF.8-9.259Sáiz Martínez, P. 2015. Utilización de arenas procedentes de Residuos de Construcción y Demolición, RCD, en la fabricación de morteros de albañilería. PhD thesis, Universidad Politécnica De Madrid. https://doi.org/10.20868/UPM.thesis.39585Trinchese, G. 2019. ‘Il riuso dei materiali dal De Architectura di Vitruvio.’ In: Conte, A. e Guida, G. (a cura di), Patrimonio in divenire, conoscere, valorizzare, abitare, ReUSO Matera, Gangemi Editore International, pagg. 1181-1192. ISBN: 9788849238006.Trinchese, G. 2020. ‘Il riciclo dei materiali a difesa del territorio.’ In: Fumo, M. e Trinchese, G., Differenti strategie difensive. Dai muri di cinta alle barriere invisibili di protezione, Luciano Editore, Napoli 2020, pp. 113-120. ISBN: 9788860262776.Vaquero, M. 2008. ‘The history of stones: behavioural inferences and temporal resolution of an archaeological assemblage from the Middle Palaeolithic.’ Journal of Archaeological Science, 35(12), 3178-3185. https://doi.org/10.1016/j.jas.2008.07.00
A dataset of EEG signals from a single-channel SSVEP-based brain computer interface
No full textThe paper presents a collection of electroencephalography (EEG) data from a portable Steady State Visual Evoked Potentials (SSVEP)-based Brain Computer Interface (BCI). The collection of data was acquired by means of experiments based on repetitive visual stimuli with four different flickering frequencies. The main novelty of the proposed data set is related to the usage of a single-channel dry-sensor acquisition device. Different from conventional BCI helmets, this kind of device strongly improves the users’ comfort and, therefore, there is a strong interest in using it to pave the way towards the future generation of Internet of Things (IoT) applications. Consequently, the dataset proposed in this paper aims to act as a key tool to support the research activities in this emerging topic of human-computer interaction
Trinchese (Stefano) "Servire obbedire e tacere" L'immagine dell'Ita: lia fascista nell'opinione di Angelo Roncalli
No full textTrinchese (Stefano) "Servire obbedire e tacere" L'immagine dell'Ita: lia fascista nell'opinione di Angelo Roncalli. In: Archives de sciences sociales des religions, n°68/2, 1989. p. 190
Classifying EEG Signals in Single-Channel SSVEP-based BCIs through Support Vector Machine
No full textElectroencephalography (EEG) headsets are wearable computing devices capable of recording electrical activity of the brain. These devices play a key role in the Brain-Computer Interfaces (BCIs) systems, i.e., systems capable of acquiring, processing and classifying EEG signals in order to control external devices such as wireless prosthetics. In spite of their crucial role, the current EEG headsets are very uncomfortable being composed of many wet electrodes. Hence, single-channel BCIs with dry electrodes are emerging like wearable devices more accepted by users. Unfortunately, this kind of device typically provides weaker and noisier signal that makes more challenging the classification task. This work is aimed at improving the quality of the classification of EEG signals, and in particular of Steady-State Visual Evoked Potentials (SSVEP), captured by single-channel EEG devices by using an evolutionary algorithm-based optimized version of Support Vector Machine (SVM). As shown by experimental results, the proposed approach improves on the state-of-the-art methods in terms of accuracy
Applying logistic regression for classification in single-channel SSVEP-based BCIs
No full textSteady-State Visual Evoked Potentials (SSVEPs) are electroencephalography (EEG) signals which, recently, have attracted a notable interest in the field of Brain Computer Interfaces (BCIs) due to their little training requirement. Similar to other EEG signals, SSVEPs are captured by means of EEG devices characterized by multiple wet electrodes. Unfortunately, these EEG devices are very uncomfortable for users to be worn. As a consequence, there is a strong interest in developing more comfortable single-channel EEG devices equipped with dry sensors. However, if, on one hand, these innovative EEG devices are less invasive and more simple to be used by an average user, on the other hand, the exploitation of a single dry sensor leads to the collection of a weaker and noisy signal which is more difficult to be opportunely processed and classified. The aim of this paper is to improve the performance of signal classification tasks of SSVEPs captured by single-channel EEG devices with dry sensors by logistic regression. As shown by experimental results, the proposed approach improves the state-of-the-art methods in terms of accuracy
Trinchese (Stefano) "Servire obbedire e tacere" L'immagine dell'Ita: lia fascista nell'opinione di Angelo Roncalli
No full textTrinchese (Stefano) "Servire obbedire e tacere" L'immagine dell'Ita: lia fascista nell'opinione di Angelo Roncalli. In: Archives de sciences sociales des religions, n°68/2, 1989. p. 190
C9, t11-Conjugated linoleic acid ameliorates steatosis by modulating mitochondrial uncoupling and Nrf2 pathway
No full textOxidative stress, hepatic steatosis, and mitochondrial dysfunction are key pathophysiological features of nonalcoholic fatty liver disease. A conjugated linoleic acid (CLA) mixture of cis 9, trans 11 (9,11-CLA) and trans 10, cis 12 (10,12-CLA) isomers enhanced the antioxidant/detoxifying mechanism via the activation of nuclear factor E2-related factor-2 (Nrf2) and improved mitochondrial function, but less is known about the actions of specific isomers. The differential ability of individual CLA isomers to modulate these pathways was explored in Wistar rats fed for 4 weeks with a lard-based high-fat diet (L) or with control diet (CD), and, within each dietary treatment, two subgroups were daily administered with 9,11-CLA or 10,12-CLA (30 mg/ day). The 9,11-CLA, but not 10,12-CLA, supplementation to CD rats improves the GSH/GSSG ratio in the liver, mitochondrial functions, and Nrf2 activity. Histological examination reveals a reduction of steatosis in L-fed rats supplemented with both CLA isomers, but 9,11-CLA downregulated plasma concentrations of proinflammatory markers, mitochondrial dysfunction, and oxidative stress markers in liver more efficiently than in 10,12-CLA treatment. The present study demonstrates the higher protective effect of 9,11-CLA against diet-induced pro-oxidant and proinflammatory signs and suggests that these effects are determined, at least in part, by its ability to activate the Nrf2 pathway and to improve the mitochondrial functioning and biogenesis.-Mollica, M. P., G. Trinchese, G. Cavaliere, C. De Filippo, E. Cocca, M. Gaita, A. Della-Gatta, A. Marano, G. Mazzarella, and P. Bergamo. c 9, t 11-Conjugated linoleic acid ameliorates steatosis by modulating mitochondrial uncoupling and Nrf2 pathway. J. Lipid Res . 2014. 55: 837-849. Copyright © 2014 by the American Society for Biochemistry and Molecular Biology, Inc
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