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Gonzalez-Cavieres</title> <meta name="description" content="Search results for: Luis Gonzalez-Cavieres"> <meta name="keywords" content="Luis Gonzalez-Cavieres"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Luis Gonzalez-Cavieres"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 271</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Luis Gonzalez-Cavieres</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">271</span> Identification of Novel Differentially Expressed and Co-Expressed Genes between Tumor and Adjacent Tissue in Prostate Cancer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Luis%20Enrique%20Bautista-Hinojosa">Luis Enrique Bautista-Hinojosa</a>, <a href="https://publications.waset.org/abstracts/search?q=Luis%20A.%20Herrera"> Luis A. Herrera</a>, <a href="https://publications.waset.org/abstracts/search?q=Cristian%20Arriaga-Canon"> Cristian Arriaga-Canon</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Text should be written in the third person. Please avoid using "I" “my” or the pronoun "one". It is best to say "It is believed..." rather than "I believe..." or "One believes...". <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=transcriptomics" title="transcriptomics">transcriptomics</a>, <a href="https://publications.waset.org/abstracts/search?q=co-expression" title=" co-expression"> co-expression</a>, <a href="https://publications.waset.org/abstracts/search?q=cancer" title=" cancer"> cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=biomarkers" title=" biomarkers"> biomarkers</a> </p> <a href="https://publications.waset.org/abstracts/179230/identification-of-novel-differentially-expressed-and-co-expressed-genes-between-tumor-and-adjacent-tissue-in-prostate-cancer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/179230.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">75</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">270</span> Using Photogrammetry to Survey the Côa Valley Iron Age Rock Art Motifs: Vermelhosa Panel 3 Case Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nat%C3%A1lia%20Botica">Natália Botica</a>, <a href="https://publications.waset.org/abstracts/search?q=Lu%C3%ADs%20Lu%C3%ADs"> Luís Luís</a>, <a href="https://publications.waset.org/abstracts/search?q=Paulo%20Bernardes"> Paulo Bernardes</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Côa Valley, listed World Heritage since 1998, presents more than 1300 open-air engraved rock panels. The Archaeological Park of the Côa Valley recorded the rock art motifs, testing various techniques based on direct tracing processes on the rock, using natural and artificial lighting. In this work, integrated in the "Open Access Rock Art Repository" (RARAA) project, we present the methodology adopted for the vectorial drawing of the rock art motifs based on orthophotos taken from the photogrammetric survey and 3D models of the rocks. We also present the information system designed to integrate the vector drawing and the characterization data of the motifs, as well as the open access sharing, in order to promote their reuse in multiple areas. The 3D models themselves constitute a very detailed record, ensuring the digital preservation of the rock and iconography. Thus, even if a rock or motif disappears, it can continue to be studied and even recreated. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rock%20art" title="rock art">rock art</a>, <a href="https://publications.waset.org/abstracts/search?q=archaeology" title=" archaeology"> archaeology</a>, <a href="https://publications.waset.org/abstracts/search?q=iron%20age" title=" iron age"> iron age</a>, <a href="https://publications.waset.org/abstracts/search?q=3D%20models" title=" 3D models"> 3D models</a> </p> <a href="https://publications.waset.org/abstracts/164190/using-photogrammetry-to-survey-the-coa-valley-iron-age-rock-art-motifs-vermelhosa-panel-3-case-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/164190.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">83</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">269</span> Mercury (Hg) Concentration in Fish Marketed in the São Luís Fish Market (MA) and Potential Exposure of Consumers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Luiz%20Drude%20de%20Lacerda">Luiz Drude de Lacerda</a>, <a href="https://publications.waset.org/abstracts/search?q=Kevin%20Luiz%20Cordeiro%20Ferrer%20do%20Carmo"> Kevin Luiz Cordeiro Ferrer do Carmo</a>, <a href="https://publications.waset.org/abstracts/search?q=Victor%20Lacerda%20Moura"> Victor Lacerda Moura</a>, <a href="https://publications.waset.org/abstracts/search?q=Rayone%20Wesley%20Santos%20de%20Oliveira"> Rayone Wesley Santos de Oliveira</a>, <a href="https://publications.waset.org/abstracts/search?q=Mois%C3%A9s%20Fernandes%20Bezerra"> Moisés Fernandes Bezerra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fish is a food source well recognized for its health benefits. However, the consumption of fish, especially carnivorous species, is the main path of human exposure to Hg, a widely distributed pollutant on the planet and that accumulates along food chains. Studies on the impacts on public health by fish intake show existing toxic risks even when at low concentrations. This study quantifies, for the first time, the concentrations of Hg in muscle tissue of the nine most commercialized fish species in the fish market of São Luís (MA) in north Brazil and estimates the consequent human exposure through consumption. Concentrations varied according to trophic level, with the highest found in the larger carnivorous species; the Yellow hake (Cynoscion acoupa) (296.4 ± 241.2 ng/g w.w) and the Atlantic croaker (Micropogonias undulatus) (262.8 ± 89.1 ng/g w.w.), whereas the lowest concentrations were recorded in iliophagous Mullets (Mugil curema) (20.5 ± 9.6 ng/g w.w.). Significant correlations were observed between Hg concentrations and individual length in only two species: the Flaming catfish (Bagre marinus) and the Atlantic bumper (Chloroscombrus crysurus). Given the relatively uniform size of individuals of the other species and/or the small number of samples, this relationship was not found for the other species. The estimated risk coefficients, despite the relatively low concentrations of Hg, suggest that yellow hake and Whitemouth croaker (Micropogonias furnieri), fish most consumed by the local population, present some risk to human health (> 1) HQ and THQ, depending on the frequency of their consumption. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=contamination" title="contamination">contamination</a>, <a href="https://publications.waset.org/abstracts/search?q=fish" title=" fish"> fish</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20exposure" title=" human exposure"> human exposure</a>, <a href="https://publications.waset.org/abstracts/search?q=risk%20assessment" title=" risk assessment"> risk assessment</a> </p> <a href="https://publications.waset.org/abstracts/159037/mercury-hg-concentration-in-fish-marketed-in-the-sao-luis-fish-market-ma-and-potential-exposure-of-consumers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/159037.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">112</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">268</span> Outcomes in New-Onset Diabetic Foot Ulcers Stratified by Etiology</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pedro%20Gomes">Pedro Gomes</a>, <a href="https://publications.waset.org/abstracts/search?q=Lia%20Ferreira"> Lia Ferreira</a>, <a href="https://publications.waset.org/abstracts/search?q=Sofia%20Garcia"> Sofia Garcia</a>, <a href="https://publications.waset.org/abstracts/search?q=Jaime%20Babulal"> Jaime Babulal</a>, <a href="https://publications.waset.org/abstracts/search?q=Lu%C3%ADs%20Costa"> Luís Costa</a>, <a href="https://publications.waset.org/abstracts/search?q=Lu%C3%ADs%20Castelo"> Luís Castelo</a>, <a href="https://publications.waset.org/abstracts/search?q=Jos%C3%A9%20Muras"> José Muras</a>, <a href="https://publications.waset.org/abstracts/search?q=Isabel%20Gon%C3%A7alves"> Isabel Gonçalves</a>, <a href="https://publications.waset.org/abstracts/search?q=Rui%20Carvalho"> Rui Carvalho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Foot ulcers and their complications are an important cause of morbidity and mortality in diabetes. Objectives: The present study aims to evaluate the outcomes in terms of need for hospitalization, amputation, healing time and mortality in patients with new-onset diabetic foot ulcers in subgroups stratified by etiology. Methods: A retrospective study based on clinical assessment of patients presenting with new ulcers to a multidisciplinary diabetic foot consult during 2012. Outcomes were determined until September 2014, from hospital registers. Baseline clinical examination was done to classify ulcers as neuropathic, ischemic or neuroischemic. Results: 487 patients with new diabetic foot ulcers were observed; 36%, 15% and 49% of patients had neuropathic, ischemic and neuroischemic ulcers, respectively. For analysis, patients were classified as having predominantly neuropathic (36%) or ischemic foot (64%). The mean age was significantly higher in the group with ischemic foot (70±12 vs 63±12 years; p <0.001), as well as the duration of diabetes (18±10 vs 16 ± 10years, p <0.05). A history of previous amputation was also significantly higher in this group (24.7% vs 15.6%, p <0.05). The evolution of ischemic ulcers was significantly worse, with a greater need for hospitalization (27.2% vs 18%, p <0.05), amputation (11.5% vs 3.6% p <0.05) mainly major amputation (3% vs. 0%; p <0.001) and higher mean healing time (151 days vs 89 days, p <0.05). The mortality rate at 18 months, was also significantly higher in the ischemic foot group (7.3% vs 1.8%, p <0.05). Conclusions: All types of diabetic foot ulcers are associated with high morbidity and mortality, however, the presence of arterial disease confers a poor prognosis. Diabetic foot can be successfully treated only by the multidisciplinary team which can provide more comprehensive and integrated care. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=diabetes" title="diabetes">diabetes</a>, <a href="https://publications.waset.org/abstracts/search?q=foot%20ulcers" title=" foot ulcers"> foot ulcers</a>, <a href="https://publications.waset.org/abstracts/search?q=etiology" title=" etiology"> etiology</a>, <a href="https://publications.waset.org/abstracts/search?q=outcome" title=" outcome"> outcome</a> </p> <a href="https://publications.waset.org/abstracts/25220/outcomes-in-new-onset-diabetic-foot-ulcers-stratified-by-etiology" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25220.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">433</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">267</span> Light Harvesting Titanium Nanocatalyst for Remediation of Methyl Orange</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Brajesh%20Kumar">Brajesh Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Luis%20Cumbal"> Luis Cumbal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An eco-friendly Citrus paradisi peel extract mediated synthesis of TiO2 nanoparticles is reported under sonication. U.V.-vis, Transmission Electron Microscopy, Dynamic Light Scattering and X-ray analyses are performed to characterize the formation of TiO2 nanoparticles. It is almost spherical in shape, having a size of 60–140 nm and the XRD peaks at 2θ = 25.363° confirm the characteristic facets for anatase form. The synthesized nano catalyst is highly active in the decomposition of methyl orange (64 mg/L) in sunlight (~73%) for 2.5 hours. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=eco-friendly" title="eco-friendly">eco-friendly</a>, <a href="https://publications.waset.org/abstracts/search?q=TiO2%20nanoparticles" title=" TiO2 nanoparticles"> TiO2 nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=citrus%20%20paradisi" title=" citrus paradisi"> citrus paradisi</a>, <a href="https://publications.waset.org/abstracts/search?q=TEM" title=" TEM"> TEM</a> </p> <a href="https://publications.waset.org/abstracts/6603/light-harvesting-titanium-nanocatalyst-for-remediation-of-methyl-orange" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6603.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">525</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">266</span> Simulations in Structural Masonry Walls with Chases Horizontal Through Models in State Deformation Plan (2D)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Raquel%20Zydeck">Raquel Zydeck</a>, <a href="https://publications.waset.org/abstracts/search?q=Karina%20Azzolin"> Karina Azzolin</a>, <a href="https://publications.waset.org/abstracts/search?q=Luis%20Kosteski"> Luis Kosteski</a>, <a href="https://publications.waset.org/abstracts/search?q=Alisson%20Milani"> Alisson Milani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work presents numerical models in plane deformations (2D), using the Discrete Element Method formedbybars (LDEM) andtheFiniteElementMethod (FEM), in structuralmasonrywallswith horizontal chasesof 20%, 30%, and 50% deep, located in the central part and 1/3 oftheupperpartofthewall, withcenteredandeccentricloading. Differentcombinationsofboundaryconditionsandinteractionsbetweenthemethodswerestudied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chases%20in%20structural%20masonry%20walls" title="chases in structural masonry walls">chases in structural masonry walls</a>, <a href="https://publications.waset.org/abstracts/search?q=discrete%20element%20method%20formed%20by%20bars" title=" discrete element method formed by bars"> discrete element method formed by bars</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20method" title=" finite element method"> finite element method</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20models" title=" numerical models"> numerical models</a>, <a href="https://publications.waset.org/abstracts/search?q=boundary%20condition" title=" boundary condition"> boundary condition</a> </p> <a href="https://publications.waset.org/abstracts/144117/simulations-in-structural-masonry-walls-with-chases-horizontal-through-models-in-state-deformation-plan-2d" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/144117.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">168</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">265</span> Identification of Stakeholders and Practices of Inclusive Education</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Luis%20Javier%20Serrano-Tamayo">Luis Javier Serrano-Tamayo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper focuses on the recent interest in the concept of inclusion from multiple areas of social sciences, but particularly from the academic studies on what do scholars mean when they refer to inclusive education. Therefore, this paper has been based on a three-year systematic review of near two hundred peer-reviewed documents in the last two decades. The results illustrate some of the use, misuse, and abuse of inclusive education as well as shed some light on the identification of the different stakeholders involved in the dynamic concept of inclusive education and their suggested practices. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=inclusion" title="inclusion">inclusion</a>, <a href="https://publications.waset.org/abstracts/search?q=inclusive%20education" title=" inclusive education"> inclusive education</a>, <a href="https://publications.waset.org/abstracts/search?q=inclusive%20practices" title=" inclusive practices"> inclusive practices</a>, <a href="https://publications.waset.org/abstracts/search?q=education%20stakeholders" title=" education stakeholders"> education stakeholders</a> </p> <a href="https://publications.waset.org/abstracts/140230/identification-of-stakeholders-and-practices-of-inclusive-education" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/140230.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">237</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">264</span> Key Transfer Protocol Based on Non-invertible Numbers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Luis%20A.%20Lizama-Perez">Luis A. Lizama-Perez</a>, <a href="https://publications.waset.org/abstracts/search?q=Manuel%20J.%20Linares"> Manuel J. Linares</a>, <a href="https://publications.waset.org/abstracts/search?q=Mauricio%20Lopez"> Mauricio Lopez</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We introduce a method to perform remote user authentication on what we call non-invertible cryptography. It exploits the fact that the multiplication of an invertible integer and a non-invertible integer in a ring Zn produces a non-invertible integer making infeasible to compute factorization. The protocol requires the smallest key size when is compared with the main public key algorithms as Diffie-Hellman, Rivest-Shamir-Adleman or Elliptic Curve Cryptography. Since we found that the unique opportunity for the eavesdropper is to mount an exhaustive search on the keys, the protocol seems to be post-quantum. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=invertible" title="invertible">invertible</a>, <a href="https://publications.waset.org/abstracts/search?q=non-invertible" title=" non-invertible"> non-invertible</a>, <a href="https://publications.waset.org/abstracts/search?q=ring" title=" ring"> ring</a>, <a href="https://publications.waset.org/abstracts/search?q=key%20transfer" title=" key transfer"> key transfer</a> </p> <a href="https://publications.waset.org/abstracts/98980/key-transfer-protocol-based-on-non-invertible-numbers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/98980.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">179</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">263</span> Multivalued Behavior for a Two-Level System Using Homotopy Analysis Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Angelo%20I.%20Aquino">Angelo I. Aquino</a>, <a href="https://publications.waset.org/abstracts/search?q=Luis%20Ma.%20T.%20Bo-ot"> Luis Ma. T. Bo-ot</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We use the Homotopy Analysis Method (HAM) to solve the system of equations modeling the two-level system and extract results which will pinpoint to turbulent behavior. We look at multi-valued solutions as indicative of turbulence or turbulent-like behavior. We take dierent specic cases which result in multi-valued velocities. The solutions are in series form and application of HAM ensures convergence in some region. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=multivalued%20solutions" title="multivalued solutions">multivalued solutions</a>, <a href="https://publications.waset.org/abstracts/search?q=homotopy%20analysis%20method" title=" homotopy analysis method"> homotopy analysis method</a>, <a href="https://publications.waset.org/abstracts/search?q=two-level%20system" title=" two-level system"> two-level system</a>, <a href="https://publications.waset.org/abstracts/search?q=equation" title=" equation"> equation</a> </p> <a href="https://publications.waset.org/abstracts/19724/multivalued-behavior-for-a-two-level-system-using-homotopy-analysis-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19724.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">593</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">262</span> Searching the Efficient Frontier for the Coherent Covering Location Problem</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Felipe%20Azocar%20Simonet">Felipe Azocar Simonet</a>, <a href="https://publications.waset.org/abstracts/search?q=Luis%20Acosta%20Espejo"> Luis Acosta Espejo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this article, we will try to find an efficient boundary approximation for the bi-objective location problem with coherent coverage for two levels of hierarchy (CCLP). We present the mathematical formulation of the model used. Supported efficient solutions and unsupported efficient solutions are obtained by solving the bi-objective combinatorial problem through the weights method using a Lagrangean heuristic. Subsequently, the results are validated through the DEA analysis with the GEM index (Global efficiency measurement). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=coherent%20covering%20location%20problem" title="coherent covering location problem">coherent covering location problem</a>, <a href="https://publications.waset.org/abstracts/search?q=efficient%20frontier" title=" efficient frontier"> efficient frontier</a>, <a href="https://publications.waset.org/abstracts/search?q=lagragian%20relaxation" title=" lagragian relaxation"> lagragian relaxation</a>, <a href="https://publications.waset.org/abstracts/search?q=data%20envelopment%20analysis" title=" data envelopment analysis"> data envelopment analysis</a> </p> <a href="https://publications.waset.org/abstracts/74509/searching-the-efficient-frontier-for-the-coherent-covering-location-problem" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74509.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">334</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">261</span> ANAC-id - Facial Recognition to Detect Fraud</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Giovanna%20Borges%20Bottino">Giovanna Borges Bottino</a>, <a href="https://publications.waset.org/abstracts/search?q=Luis%20Felipe%20Freitas%20do%20Nascimento%20Alves%20Teixeira"> Luis Felipe Freitas do Nascimento Alves Teixeira</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This article aims to present a case study of the National Civil Aviation Agency (ANAC) in Brazil, ANAC-id. ANAC-id is the artificial intelligence algorithm developed for image analysis that recognizes standard images of unobstructed and uprighted face without sunglasses, allowing to identify potential inconsistencies. It combines YOLO architecture and 3 libraries in python - face recognition, face comparison, and deep face, providing robust analysis with high level of accuracy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=artificial%20intelligence" title="artificial intelligence">artificial intelligence</a>, <a href="https://publications.waset.org/abstracts/search?q=deepface" title=" deepface"> deepface</a>, <a href="https://publications.waset.org/abstracts/search?q=face%20compare" title=" face compare"> face compare</a>, <a href="https://publications.waset.org/abstracts/search?q=face%20recognition" title=" face recognition"> face recognition</a>, <a href="https://publications.waset.org/abstracts/search?q=YOLO" title=" YOLO"> YOLO</a>, <a href="https://publications.waset.org/abstracts/search?q=computer%20vision" title=" computer vision"> computer vision</a> </p> <a href="https://publications.waset.org/abstracts/148459/anac-id-facial-recognition-to-detect-fraud" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/148459.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">156</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">260</span> New Approach for Melanoma Skin Cancer Controled Releasing Drugs for Neutron Capture Therapy: A Review</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lucas%20Bernardes%20Naves">Lucas Bernardes Naves</a>, <a href="https://publications.waset.org/abstracts/search?q=Luis%20Almeida"> Luis Almeida</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The paper includes a review concerning the use of some composites including poly(lactide-co-glycolide) (PGLA), zeolite and Gadopentetic acid (Gd-DTPA) loaded chitosan nanoparticles (Gd-nanoCPs) in order to establish a new alternative for the treatment of Melanoma Skin Cancer. The main goal of this paper it to make a review of what scientist have done in the last few years, as well as to propose a less invasive therapy for skin cancer, by using Hydrocolloid, based on PLGA coated with Gd-nanoCPs for Neutron Capture Therapy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cancer%20therapy" title="cancer therapy">cancer therapy</a>, <a href="https://publications.waset.org/abstracts/search?q=dressing%20polymers" title=" dressing polymers"> dressing polymers</a>, <a href="https://publications.waset.org/abstracts/search?q=melanoma" title=" melanoma"> melanoma</a>, <a href="https://publications.waset.org/abstracts/search?q=wound%20healing" title=" wound healing"> wound healing</a> </p> <a href="https://publications.waset.org/abstracts/29758/new-approach-for-melanoma-skin-cancer-controled-releasing-drugs-for-neutron-capture-therapy-a-review" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29758.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">492</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">259</span> Sustainable Solutions for Urban Problems: Industrial Container Housing for Endangered Communities in Maranhao, Brazil</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Helida%20Thays%20Gomes%20Soares">Helida Thays Gomes Soares</a>, <a href="https://publications.waset.org/abstracts/search?q=Conceicao%20De%20Maria%20Pinheiro%20Correia"> Conceicao De Maria Pinheiro Correia</a>, <a href="https://publications.waset.org/abstracts/search?q=Fabiano%20Maciel%20Soares"> Fabiano Maciel Soares</a>, <a href="https://publications.waset.org/abstracts/search?q=Kleymer%20Silva"> Kleymer Silva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> There is great discussion around populational increase in urban areas of the global south, and, consequently, the growth of inappropriate housing and the different ways humans have found to solve housing problems around the world. Sao Luís, the capital of the state of Maranhao is a good example. The 1.6 million inhabitant metropole is a colonial tropical city that shelters 22% of the population of Maranhão, brazilian state that still carries the scars of slavery in past centuries. In 2016, Brazilian Institute of Geography and Statistic found that 20% of Maranhão’s inhabitants were living in houses with external walls made of non-durable materials, like recycled wood, cardboard or soil. Out of this problematic, this study aims to propose interventions not only in the physical structure of irregular housing, but also to serve as a guide to intervene in the way eco-friendly, communitarian housing is seen by extreme poor zones inside metropolitan regions around big cities in the global south. The adaptation and reuse of industrial containers from the Harbor of Itaqui for housing is also an aim of the project. The great volume of discarded industrial containers may be an opportunity to solve housing deficit in the city. That way, through field research in São Luís’ neighborhoods mostly occupied by inappropriate housing, the study intends to raise ethnographical and physical values that help to shape new uses of industrial containers and recycled building materials, bringing the community into the process of shaping new-housing for local housing programs, changing the mindset of a concrete/brick model of building. The study used a general feasibility analysis of local engineers regarding strength of the locally used container for construction purposes, and also researched in-loco the current impressions of risky areas inhabitants of housing, traditional housing and the role they played as city shapers, evaluating their perceptions of what means to live and how their houses represent their personality. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=container%20housing" title="container housing">container housing</a>, <a href="https://publications.waset.org/abstracts/search?q=civil%20construction" title=" civil construction"> civil construction</a>, <a href="https://publications.waset.org/abstracts/search?q=housing%20deficit" title=" housing deficit"> housing deficit</a>, <a href="https://publications.waset.org/abstracts/search?q=participatory%20design" title=" participatory design"> participatory design</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainability" title=" sustainability"> sustainability</a> </p> <a href="https://publications.waset.org/abstracts/105723/sustainable-solutions-for-urban-problems-industrial-container-housing-for-endangered-communities-in-maranhao-brazil" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/105723.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">191</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">258</span> Failure Simulation of Small-scale Walls with Chases Using the Lattic Discrete Element Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Karina%20C.%20Azzolin">Karina C. Azzolin</a>, <a href="https://publications.waset.org/abstracts/search?q=Luis%20E.%20Kosteski"> Luis E. Kosteski</a>, <a href="https://publications.waset.org/abstracts/search?q=Alisson%20S.%20Milani"> Alisson S. Milani</a>, <a href="https://publications.waset.org/abstracts/search?q=Raquel%20C.%20Zydeck"> Raquel C. Zydeck</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work aims to represent Numerically tests experimentally developed in reduced scale walls with horizontal and inclined cuts by using the Lattice Discrete Element Method (LDEM) implemented On de Abaqus/explicit environment. The cuts were performed with depths of 20%, 30%, and 50% On the walls subjected to centered and eccentric loading. The parameters used to evaluate the numerical model are its strength, the failure mode, and the in-plane and out-of-plane displacements. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=structural%20masonry" title="structural masonry">structural masonry</a>, <a href="https://publications.waset.org/abstracts/search?q=wall%20chases" title=" wall chases"> wall chases</a>, <a href="https://publications.waset.org/abstracts/search?q=small%20scale" title=" small scale"> small scale</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20model" title=" numerical model"> numerical model</a>, <a href="https://publications.waset.org/abstracts/search?q=lattice%20discrete%20element%20method" title=" lattice discrete element method"> lattice discrete element method</a> </p> <a href="https://publications.waset.org/abstracts/143660/failure-simulation-of-small-scale-walls-with-chases-using-the-lattic-discrete-element-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/143660.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">177</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">257</span> Simulation of Surge Protection for a Direct Current Circuit</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pedro%20Luis%20Ferrer%20Penalver">Pedro Luis Ferrer Penalver</a>, <a href="https://publications.waset.org/abstracts/search?q=Edmundo%20da%20Silva%20Braga"> Edmundo da Silva Braga</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the performance of a simple surge protection for a direct current circuit was simulated. The protection circuit was developed from modified electric macro models of a gas discharge tube and a transient voltage suppressor diode. Moreover, a combination wave generator circuit was used as source of energy surges. The simulations showed that the circuit presented ensures immunity corresponding with test level IV of the IEC 61000-4-5:2014 international standard. The developed circuit can be modified to meet the requirements of any other equipment to be protected. Similarly, the parameters of the combination wave generator can be changed to provide different surge amplitudes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=combination%20wave%20generator" title="combination wave generator">combination wave generator</a>, <a href="https://publications.waset.org/abstracts/search?q=IEC%2061000-4-5" title=" IEC 61000-4-5"> IEC 61000-4-5</a>, <a href="https://publications.waset.org/abstracts/search?q=Pspice%20simulation" title=" Pspice simulation"> Pspice simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=surge%20protection" title=" surge protection"> surge protection</a> </p> <a href="https://publications.waset.org/abstracts/57544/simulation-of-surge-protection-for-a-direct-current-circuit" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57544.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">327</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">256</span> Analysis of Multilayer Neural Network Modeling and Long Short-Term Memory</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Danilo%20L%C3%B3pez">Danilo López</a>, <a href="https://publications.waset.org/abstracts/search?q=Nelson%20Vera"> Nelson Vera</a>, <a href="https://publications.waset.org/abstracts/search?q=Luis%20Pedraza"> Luis Pedraza</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper analyzes fundamental ideas and concepts related to neural networks, which provide the reader a theoretical explanation of Long Short-Term Memory (LSTM) networks operation classified as Deep Learning Systems, and to explicitly present the mathematical development of Backward Pass equations of the LSTM network model. This mathematical modeling associated with software development will provide the necessary tools to develop an intelligent system capable of predicting the behavior of licensed users in wireless cognitive radio networks. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=neural%20networks" title="neural networks">neural networks</a>, <a href="https://publications.waset.org/abstracts/search?q=multilayer%20perceptron" title=" multilayer perceptron"> multilayer perceptron</a>, <a href="https://publications.waset.org/abstracts/search?q=long%20short-term%20memory" title=" long short-term memory"> long short-term memory</a>, <a href="https://publications.waset.org/abstracts/search?q=recurrent%20neuronal%20network" title=" recurrent neuronal network"> recurrent neuronal network</a>, <a href="https://publications.waset.org/abstracts/search?q=mathematical%20analysis" title=" mathematical analysis"> mathematical analysis</a> </p> <a href="https://publications.waset.org/abstracts/63507/analysis-of-multilayer-neural-network-modeling-and-long-short-term-memory" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/63507.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">420</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">255</span> Effect of Electromagnetic Fields on Protein Extraction from Shrimp By-Products for Electrospinning Process</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Guido%20Trautmann-S%C3%A1ez">Guido Trautmann-Sáez</a>, <a href="https://publications.waset.org/abstracts/search?q=Mario%20P%C3%A9rez-Won"> Mario Pérez-Won</a>, <a href="https://publications.waset.org/abstracts/search?q=Vilbett%20Briones"> Vilbett Briones</a>, <a href="https://publications.waset.org/abstracts/search?q=Mar%C3%ADa%20Jos%C3%A9%20Bugue%C3%B1o"> María José Bugueño</a>, <a href="https://publications.waset.org/abstracts/search?q=Gipsy%20Tabilo-Munizaga"> Gipsy Tabilo-Munizaga</a>, <a href="https://publications.waset.org/abstracts/search?q=Luis%20Gonz%C3%A1les-Cavieres"> Luis Gonzáles-Cavieres</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Shrimp by-products are a valuable source of protein. However, traditional protein extraction methods have limitations in terms of their efficiency. Protein extraction from shrimp (Pleuroncodes monodon) industrial by-products assisted with ohmic heating (OH), microwave (MW) and pulsed electric field (PEF). It was performed by chemical method (using NaOH and HCl 2M) assisted with OH, MW and PEF in a continuous flow system (5 ml/s). Protein determination, differential scanning calorimetry (DSC) and Fourier-transform infrared (FTIR). Results indicate a 19.25% (PEF) 3.65% (OH) and 28.19% (MW) improvement in protein extraction efficiency. The most efficient method was selected for the electrospinning process and obtaining fiber. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electrospinning%20process" title="electrospinning process">electrospinning process</a>, <a href="https://publications.waset.org/abstracts/search?q=emerging%20technology" title=" emerging technology"> emerging technology</a>, <a href="https://publications.waset.org/abstracts/search?q=protein%20extraction" title=" protein extraction"> protein extraction</a>, <a href="https://publications.waset.org/abstracts/search?q=shrimp%20by-products" title=" shrimp by-products"> shrimp by-products</a> </p> <a href="https://publications.waset.org/abstracts/171420/effect-of-electromagnetic-fields-on-protein-extraction-from-shrimp-by-products-for-electrospinning-process" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/171420.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">90</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">254</span> Dynamic Performance Analysis of Distribution/ Sub-Transmission Networks with High Penetration of PV Generation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cristian%20F.T.%20Montenegro">Cristian F.T. Montenegro</a>, <a href="https://publications.waset.org/abstracts/search?q=Lu%C3%ADs%20F.%20N.%20Louren%C3%A7o"> Luís F. N. Lourenço</a>, <a href="https://publications.waset.org/abstracts/search?q=Maur%C3%ADcio%20B.%20C.%20Salles"> Maurício B. C. Salles</a>, <a href="https://publications.waset.org/abstracts/search?q=Renato%20M.%20Monaro"> Renato M. Monaro</a> </p> <p class="card-text"><strong>Abstract:</strong></p> More PV systems have been connected to the electrical network each year. As the number of PV systems increases, some issues affecting grid operations have been identified. This paper studied the impacts related to changes in solar irradiance on a distribution/sub-transmission network, considering variations due to moving clouds and daily cycles. Using MATLAB/Simulink software, a solar farm of 30 MWp was built and then implemented to a test network. From simulations, it has been determined that irradiance changes can have a significant impact on the grid by causing voltage fluctuations outside the allowable thresholds. This work discussed some local control strategies and grid reinforcements to mitigate the negative effects of the irradiance changes on the grid. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=reactive%20power%20control" title="reactive power control">reactive power control</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20irradiance" title=" solar irradiance"> solar irradiance</a>, <a href="https://publications.waset.org/abstracts/search?q=utility-scale%20PV%20systems" title=" utility-scale PV systems"> utility-scale PV systems</a>, <a href="https://publications.waset.org/abstracts/search?q=voltage%20fluctuations" title=" voltage fluctuations"> voltage fluctuations</a> </p> <a href="https://publications.waset.org/abstracts/44539/dynamic-performance-analysis-of-distribution-sub-transmission-networks-with-high-penetration-of-pv-generation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44539.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">460</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">253</span> Flow Visualization in Biological Complex Geometries for Personalized Medicine</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Carlos%20Escobar-del%20Pozo">Carlos Escobar-del Pozo</a>, <a href="https://publications.waset.org/abstracts/search?q=C%C3%A9sar%20Ahumada-Monroy"> César Ahumada-Monroy</a>, <a href="https://publications.waset.org/abstracts/search?q=Azael%20Garc%C3%ADa-Rebolledo"> Azael García-Rebolledo</a>, <a href="https://publications.waset.org/abstracts/search?q=Alberto%20Brambila-Sol%C3%B3rzano"> Alberto Brambila-Solórzano</a>, <a href="https://publications.waset.org/abstracts/search?q=Gregorio%20Mart%C3%ADnez-S%C3%A1nchez"> Gregorio Martínez-Sánchez</a>, <a href="https://publications.waset.org/abstracts/search?q=Luis%20Ortiz-Rinc%C3%B3n"> Luis Ortiz-Rincón</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Numerical simulations of flow in complex biological structures have gained considerable attention in the last years. However, the major issue is the validation of the results. The present work shows a Particle Image Velocimetry PIV flow visualization technique in complex biological structures, particularly in intracranial aneurysms. A methodology to reconstruct and generate a transparent model has been developed, as well as visualization and particle tracking techniques. The generated transparent models allow visualizing the flow patterns with a regular camera using the visualization techniques. The final goal is to use visualization as a tool to provide more information on the treatment and surgery decisions in aneurysms. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aneurysms" title="aneurysms">aneurysms</a>, <a href="https://publications.waset.org/abstracts/search?q=PIV" title=" PIV"> PIV</a>, <a href="https://publications.waset.org/abstracts/search?q=flow%20visualization" title=" flow visualization"> flow visualization</a>, <a href="https://publications.waset.org/abstracts/search?q=particle%20tracking" title=" particle tracking"> particle tracking</a> </p> <a href="https://publications.waset.org/abstracts/165909/flow-visualization-in-biological-complex-geometries-for-personalized-medicine" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/165909.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">90</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">252</span> Contribution for Rural Development Trough Training in Organic Farming </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Raquel%20P.%20F.%20Guin%C3%A9">Raquel P. F. Guiné</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniela%20V.%20T.%20A.%20Costa"> Daniela V. T. A. Costa</a>, <a href="https://publications.waset.org/abstracts/search?q=Paula%20M.%20R.%20Correia"> Paula M. R. Correia</a>, <a href="https://publications.waset.org/abstracts/search?q=Mois%C3%A9s%20Castro"> Moisés Castro</a>, <a href="https://publications.waset.org/abstracts/search?q=Luis%20T.%20Guerra"> Luis T. Guerra</a>, <a href="https://publications.waset.org/abstracts/search?q=Cristina%20A.%20Costa"> Cristina A. Costa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this work was to characterize a potential target group of people interested in participating into a training program in organic farming in the context of mobile-learning. The information sought addressed in particular, but not exclusively, possible contents, formats and forms of evaluation that will contribute to define the course objectives and curriculum, as well as to ensure that the course meets the needs of the learners and their preferences. The sample was selected among different European countries. The questionnaires were delivered electronically for answering online and in the end 135 consented valid questionnaires were obtained. The results allowed characterizing the target group and identifying their training needs and preferences towards m-learning formats, giving valuable tools to design the training offer. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mobile-learning" title="mobile-learning">mobile-learning</a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20farming" title=" organic farming"> organic farming</a>, <a href="https://publications.waset.org/abstracts/search?q=rural%20development" title=" rural development"> rural development</a>, <a href="https://publications.waset.org/abstracts/search?q=survey" title=" survey"> survey</a> </p> <a href="https://publications.waset.org/abstracts/31373/contribution-for-rural-development-trough-training-in-organic-farming" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31373.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">502</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">251</span> Model for Assessment of Quality Airport Services</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cristina%20da%20Silva%20Torres">Cristina da Silva Torres</a>, <a href="https://publications.waset.org/abstracts/search?q=Jos%C3%A9%20Luis%20Duarte%20Ribeiro"> José Luis Duarte Ribeiro</a>, <a href="https://publications.waset.org/abstracts/search?q=Maria%20Auxiliadora%20Cannarozzo%20Tinoco"> Maria Auxiliadora Cannarozzo Tinoco </a> </p> <p class="card-text"><strong>Abstract:</strong></p> As a result of the rapid growth of the Brazilian Air Transport, many airports are at the limit of their capacities and have a reduction in the quality of services provided. Thus, there is a need of models for assessing the quality of airport services. Because of this, the main objective of this work is to propose a model for the evaluation of quality attributes in airport services. To this end, we used the method composed by literature review and interview. Structured a working method composed by 5 steps, which resulted in a model to evaluate the quality of airport services, consisting of 8 dimensions and 45 attributes. Was used as base for model definition the process mapping of boarding and landing processes of passengers and luggage. As a contribution of this work is the integration of management process with structuring models to assess the quality of services in airport environments. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=quality%20airport%20services" title="quality airport services">quality airport services</a>, <a href="https://publications.waset.org/abstracts/search?q=model%20for%20identification%20of%20attributes%20quality" title=" model for identification of attributes quality"> model for identification of attributes quality</a>, <a href="https://publications.waset.org/abstracts/search?q=air%20transport" title=" air transport"> air transport</a>, <a href="https://publications.waset.org/abstracts/search?q=passenger" title=" passenger"> passenger</a> </p> <a href="https://publications.waset.org/abstracts/24893/model-for-assessment-of-quality-airport-services" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24893.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">535</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">250</span> Online Electric Current Based Diagnosis of Stator Faults on Squirrel Cage Induction Motors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alejandro%20Paz%20Parra">Alejandro Paz Parra</a>, <a href="https://publications.waset.org/abstracts/search?q=Jose%20Luis%20Oslinger%20Gutierrez"> Jose Luis Oslinger Gutierrez</a>, <a href="https://publications.waset.org/abstracts/search?q=Javier%20Olaya%20Ochoa"> Javier Olaya Ochoa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the present paper, five electric current based methods to analyze electric faults on the stator of induction motors (IM) are used and compared. The analysis tries to extend the application of the multiple reference frames diagnosis technique. An eccentricity indicator is presented to improve the application of the Park’s Vector Approach technique. Most of the fault indicators are validated and some others revised, agree with the technical literatures and published results. A tri-phase 3hp squirrel cage IM, especially modified to establish different fault levels, is used for validation purposes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=motor%20fault%20diagnosis" title="motor fault diagnosis">motor fault diagnosis</a>, <a href="https://publications.waset.org/abstracts/search?q=induction%20motor" title=" induction motor"> induction motor</a>, <a href="https://publications.waset.org/abstracts/search?q=MCSA" title=" MCSA"> MCSA</a>, <a href="https://publications.waset.org/abstracts/search?q=ESA" title=" ESA"> ESA</a>, <a href="https://publications.waset.org/abstracts/search?q=Extended%20Park%C2%B4s%20vector%20approach" title=" Extended Park´s vector approach"> Extended Park´s vector approach</a>, <a href="https://publications.waset.org/abstracts/search?q=multiparameter%20analysis" title=" multiparameter analysis"> multiparameter analysis</a> </p> <a href="https://publications.waset.org/abstracts/57385/online-electric-current-based-diagnosis-of-stator-faults-on-squirrel-cage-induction-motors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57385.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">348</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">249</span> Low-Cost VoIP University Solution</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Carlos%20Henrique%20Rodrigues%20de%20Oliveira">Carlos Henrique Rodrigues de Oliveira</a>, <a href="https://publications.waset.org/abstracts/search?q=Luis%20Carlos%20Costa%20Fonseca"> Luis Carlos Costa Fonseca</a>, <a href="https://publications.waset.org/abstracts/search?q=Caio%20de%20Castro%20Torres"> Caio de Castro Torres</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Gusm%C3%A3o%20Pereira"> Daniel Gusmão Pereira</a>, <a href="https://publications.waset.org/abstracts/search?q=Luiz%20Ricardo%20Souza%20Ripardo"> Luiz Ricardo Souza Ripardo</a>, <a href="https://publications.waset.org/abstracts/search?q=Magno%20Castro%20Moraes"> Magno Castro Moraes</a>, <a href="https://publications.waset.org/abstracts/search?q=Ana%20Paula%20Ferreira%20Costa"> Ana Paula Ferreira Costa</a>, <a href="https://publications.waset.org/abstracts/search?q=Luiz%20Carlos%20Chaves%20Lima%20Junior"> Luiz Carlos Chaves Lima Junior</a>, <a href="https://publications.waset.org/abstracts/search?q=Aurelianny%20Almeida%20da%20Cunha"> Aurelianny Almeida da Cunha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> VoIP University is a communication solution based on the IP protocol. This solution was proposed to modernize and save on communication, which required the development of Android, iOS, and Windows applications and a web service server. This solution allows integration with management system databases to create and manage a list of user extensions. VoIP UEMA was the first deployed project of VoIP University. MOS subjective voice quality test was done, and the results indicated good quality. A financial analysis revealed that annual spending on telephone bills decreased by more than 97 %. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=VoIP%20eTec" title="VoIP eTec">VoIP eTec</a>, <a href="https://publications.waset.org/abstracts/search?q=VoIP%20UEMA" title=" VoIP UEMA"> VoIP UEMA</a>, <a href="https://publications.waset.org/abstracts/search?q=VoIP%20University" title=" VoIP University"> VoIP University</a>, <a href="https://publications.waset.org/abstracts/search?q=VoIP%20Valen" title=" VoIP Valen"> VoIP Valen</a> </p> <a href="https://publications.waset.org/abstracts/182442/low-cost-voip-university-solution" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/182442.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">61</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">248</span> A Location Routing Model for the Logistic System in the Mining Collection Centers of the Northern Region of Boyacá-Colombia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Erika%20Ru%C3%ADz">Erika Ruíz</a>, <a href="https://publications.waset.org/abstracts/search?q=Luis%20Amaya"> Luis Amaya</a>, <a href="https://publications.waset.org/abstracts/search?q=Diego%20Carre%C3%B1o"> Diego Carreño</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The main objective of this study is to design a mathematical model for the logistics of mining collection centers in the northern region of the department of Boyacá (Colombia), determining the structure that facilitates the flow of products along the supply chain. In order to achieve this, it is necessary to define a suitable design of the distribution network, taking into account the products, customer’s characteristics and the availability of information. Likewise, some other aspects must be defined, such as number and capacity of collection centers to establish, routes that must be taken to deliver products to the customers, among others. This research will use one of the operation research problems, which is used in the design of distribution networks known as Location Routing Problem (LRP). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=location%20routing%20problem" title="location routing problem">location routing problem</a>, <a href="https://publications.waset.org/abstracts/search?q=logistic" title=" logistic"> logistic</a>, <a href="https://publications.waset.org/abstracts/search?q=mining%20collection" title=" mining collection"> mining collection</a>, <a href="https://publications.waset.org/abstracts/search?q=model" title=" model"> model</a> </p> <a href="https://publications.waset.org/abstracts/82200/a-location-routing-model-for-the-logistic-system-in-the-mining-collection-centers-of-the-northern-region-of-boyaca-colombia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82200.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">217</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">247</span> A Step Towards Automating the Synthesis of a Scene Script</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Americo%20Pereira">Americo Pereira</a>, <a href="https://publications.waset.org/abstracts/search?q=Ricardo%20Carvalho"> Ricardo Carvalho</a>, <a href="https://publications.waset.org/abstracts/search?q=Pedro%20Carvalho"> Pedro Carvalho</a>, <a href="https://publications.waset.org/abstracts/search?q=Luis%20Corte-Real"> Luis Corte-Real</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Generating 3D content is a task mostly done by hand. It requires specific knowledge not only on how to use the tools for the task but also on the fundamentals of a 3D environment. In this work, we show that automatic generation of content can be achieved, from a scene script, by leveraging existing tools so that non-experts can easily engage in a 3D content generation without requiring vast amounts of time in exploring and learning how to use specific tools. This proposal carries several benefits, including flexible scene synthesis with different levels of detail. Our preliminary results show that the automatically generated content is comparable to the content generated by users with low experience in 3D modeling while vastly reducing the amount of time required for the generation and adds support to implement flexible scenarios for visual scene visualization. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=3D%20virtualization" title="3D virtualization">3D virtualization</a>, <a href="https://publications.waset.org/abstracts/search?q=multimedia" title=" multimedia"> multimedia</a>, <a href="https://publications.waset.org/abstracts/search?q=scene%20script" title=" scene script"> scene script</a>, <a href="https://publications.waset.org/abstracts/search?q=synthesis" title=" synthesis"> synthesis</a> </p> <a href="https://publications.waset.org/abstracts/136994/a-step-towards-automating-the-synthesis-of-a-scene-script" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/136994.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">266</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">246</span> Measuring Innovative and Entrepreneurial Networks Performance</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lu%C3%ADs%20Farinha">Luís Farinha</a>, <a href="https://publications.waset.org/abstracts/search?q=Jo%C3%A3o%20J.%20Ferreira"> João J. Ferreira</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nowadays innovation represents a challenge crucial to remaining globally competitive. This study seeks to develop a conceptual model aimed at measuring the dynamic interactions of the triple/quadruple helix, balancing innovation and entrepreneurship initiatives as pillars of regional competitiveness – the Regional Helix Scoreboard (RHS). To this aim, different strands of literature are identified according to their focus on specific regional competitiveness governance mechanisms. We put forward an overview of the state-of-the-art of research and is duly assessed in order to develop and propose a framework of analysis that enables an integrated approach in the context of collaborative dynamics. We conclude by presenting the RHS for the study of regional competitiveness dynamics, which integrates and associates different backgrounds and identifies a number of key performance indicators for research challenges. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=entrepreneurship" title="entrepreneurship">entrepreneurship</a>, <a href="https://publications.waset.org/abstracts/search?q=KPIs" title=" KPIs"> KPIs</a>, <a href="https://publications.waset.org/abstracts/search?q=innovation" title=" innovation"> innovation</a>, <a href="https://publications.waset.org/abstracts/search?q=performance%20measurement" title=" performance measurement"> performance measurement</a>, <a href="https://publications.waset.org/abstracts/search?q=regional%20competitiveness" title=" regional competitiveness"> regional competitiveness</a>, <a href="https://publications.waset.org/abstracts/search?q=regional%20helix%20scoreboard" title=" regional helix scoreboard"> regional helix scoreboard</a> </p> <a href="https://publications.waset.org/abstracts/51803/measuring-innovative-and-entrepreneurial-networks-performance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51803.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">329</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">245</span> Structural-Geotechnical Effects of the Foundation of a Medium-Height Structure</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Valentina%20Rodas">Valentina Rodas</a>, <a href="https://publications.waset.org/abstracts/search?q=Luis%20Almache"> Luis Almache</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The interaction effects between the existing soil and the substructure of a 5-story building with an underground one were evaluated in such a way that the structural-geotechnical concepts were validated through the method of impedance factors with a program based on the method of the finite elements. The continuous wall-type foundation had a constant thickness and followed inclined and orthogonal directions, while the ground had homogeneous and medium-type characteristics. The soil considered was type C according to the Ecuadorian Construction Standard (NEC) and the corresponding foundation comprised a depth of 4.00 meters and a basement wall thickness of 40 centimeters. This project is part of a mid-rise building in the city of Azogues (Ecuador). The hypotheses raised responded to the objectives in such a way that the model implemented with springs had a variation with respect to the embedded base, obtaining conservative results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=interaction" title="interaction">interaction</a>, <a href="https://publications.waset.org/abstracts/search?q=soil" title=" soil"> soil</a>, <a href="https://publications.waset.org/abstracts/search?q=substructure" title=" substructure"> substructure</a>, <a href="https://publications.waset.org/abstracts/search?q=springs" title=" springs"> springs</a>, <a href="https://publications.waset.org/abstracts/search?q=effects" title=" effects"> effects</a>, <a href="https://publications.waset.org/abstracts/search?q=modeling" title=" modeling "> modeling </a>, <a href="https://publications.waset.org/abstracts/search?q=embedment" title=" embedment"> embedment</a> </p> <a href="https://publications.waset.org/abstracts/137767/structural-geotechnical-effects-of-the-foundation-of-a-medium-height-structure" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/137767.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">230</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">244</span> Analytical Hierarchical Process for Multi-Criteria Decision-Making</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Luis%20Javier%20Serrano%20Tamayo">Luis Javier Serrano Tamayo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research on technology makes a first approach to the selection of an amphibious landing ship with strategic capabilities, through the implementation of a multi-criteria model using Analytical Hierarchical Process (AHP), in which a significant group of alternatives of latest technology has been considered. The variables were grouped at different levels to match design and performance characteristics, which affect the lifecycle as well as the acquisition, maintenance and operational costs. The model yielded an overall measure of effectiveness and an overall measure of cost of each kind of ship that was compared each other inside the model and showed in a Pareto chart. The modeling was developed using the Expert Choice software, based on AHP method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=analytic%20hierarchy%20process" title="analytic hierarchy process">analytic hierarchy process</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-criteria%20decision-making" title=" multi-criteria decision-making"> multi-criteria decision-making</a>, <a href="https://publications.waset.org/abstracts/search?q=Pareto%20analysis" title=" Pareto analysis"> Pareto analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=Colombian%20Marine%20Corps" title=" Colombian Marine Corps"> Colombian Marine Corps</a>, <a href="https://publications.waset.org/abstracts/search?q=projection%20operations" title=" projection operations"> projection operations</a>, <a href="https://publications.waset.org/abstracts/search?q=expert%20choice" title=" expert choice"> expert choice</a>, <a href="https://publications.waset.org/abstracts/search?q=amphibious%20landing%20ship" title=" amphibious landing ship"> amphibious landing ship</a> </p> <a href="https://publications.waset.org/abstracts/11178/analytical-hierarchical-process-for-multi-criteria-decision-making" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11178.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">549</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">243</span> Malware Detection in Mobile Devices by Analyzing Sequences of System Calls</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jorge%20Maestre%20Vidal">Jorge Maestre Vidal</a>, <a href="https://publications.waset.org/abstracts/search?q=Ana%20Lucila%20Sandoval%20Orozco"> Ana Lucila Sandoval Orozco</a>, <a href="https://publications.waset.org/abstracts/search?q=Luis%20Javier%20Garc%C3%ADa%20Villalba"> Luis Javier García Villalba</a> </p> <p class="card-text"><strong>Abstract:</strong></p> With the increase in popularity of mobile devices, new and varied forms of malware have emerged. Consequently, the organizations for cyberdefense have echoed the need to deploy more effective defensive schemes adapted to the challenges posed by these recent monitoring environments. In order to contribute to their development, this paper presents a malware detection strategy for mobile devices based on sequence alignment algorithms. Unlike the previous proposals, only the system calls performed during the startup of applications are studied. In this way, it is possible to efficiently study in depth, the sequences of system calls executed by the applications just downloaded from app stores, and initialize them in a secure and isolated environment. As demonstrated in the performed experimentation, most of the analyzed malicious activities were successfully identified in their boot processes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=android" title="android">android</a>, <a href="https://publications.waset.org/abstracts/search?q=information%20security" title=" information security"> information security</a>, <a href="https://publications.waset.org/abstracts/search?q=intrusion%20detection%20systems" title=" intrusion detection systems"> intrusion detection systems</a>, <a href="https://publications.waset.org/abstracts/search?q=malware" title=" malware"> malware</a>, <a href="https://publications.waset.org/abstracts/search?q=mobile%20devices" title=" mobile devices"> mobile devices</a> </p> <a href="https://publications.waset.org/abstracts/70344/malware-detection-in-mobile-devices-by-analyzing-sequences-of-system-calls" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/70344.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">304</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">242</span> Food Safety in Wine: Removal of Ochratoxin a in Contaminated White Wine Using Commercial Fining Agents</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ant%C3%B2nio%20In%C3%AAs">Antònio Inês</a>, <a href="https://publications.waset.org/abstracts/search?q=Davide%20Silva"> Davide Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Filipa%20Carvalho"> Filipa Carvalho</a>, <a href="https://publications.waset.org/abstracts/search?q=Lu%C3%ADs%20Filipe-Riberiro"> Luís Filipe-Riberiro</a>, <a href="https://publications.waset.org/abstracts/search?q=Fernando%20M.%20Nunes"> Fernando M. Nunes</a>, <a href="https://publications.waset.org/abstracts/search?q=Lu%C3%ADs%20Abrunhosa"> Luís Abrunhosa</a>, <a href="https://publications.waset.org/abstracts/search?q=Fernanda%20Cosme"> Fernanda Cosme</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The presence of mycotoxins in foodstuff is a matter of concern for food safety. Mycotoxins are toxic secondary metabolites produced by certain molds, being ochratoxin A (OTA) one of the most relevant. Wines can also be contaminated with these toxicants. Several authors have demonstrated the presence of mycotoxins in wine, especially ochratoxin A. Its chemical structure is a dihydro-isocoumarin connected at the 7-carboxy group to a molecule of L-β-phenylalanine via an amide bond. As these toxicants can never be completely removed from the food chain, many countries have defined levels in food in order to attend health concerns. OTA contamination of wines might be a risk to consumer health, thus requiring treatments to achieve acceptable standards for human consumption. The maximum acceptable level of OTA in wines is 2.0 μg/kg according to the Commission regulation No. 1881/2006. Therefore, the aim of this work was to reduce OTA to safer levels using different fining agents, as well as their impact on white wine physicochemical characteristics. To evaluate their efficiency, 11 commercial fining agents (mineral, synthetic, animal and vegetable proteins) were used to get new approaches on OTA removal from white wine. Trials (including a control without addition of a fining agent) were performed in white wine artificially supplemented with OTA (10 µg/L). OTA analyses were performed after wine fining. Wine was centrifuged at 4000 rpm for 10 min and 1 mL of the supernatant was collected and added of an equal volume of acetonitrile/methanol/acetic acid (78:20:2 v/v/v). Also, the solid fractions obtained after fining, were centrifuged (4000 rpm, 15 min), the resulting supernatant discarded, and the pellet extracted with 1 mL of the above solution and 1 mL of H2O. OTA analysis was performed by HPLC with fluorescence detection. The most effective fining agent in removing OTA (80%) from white wine was a commercial formulation that contains gelatin, bentonite and activated carbon. Removals between 10-30% were obtained with potassium caseinate, yeast cell walls and pea protein. With bentonites, carboxymethylcellulose, polyvinylpolypyrrolidone and chitosan no considerable OTA removal was verified. Following, the effectiveness of seven commercial activated carbons was also evaluated and compared with the commercial formulation that contains gelatin, bentonite and activated carbon. The different activated carbons were applied at the concentration recommended by the manufacturer in order to evaluate their efficiency in reducing OTA levels. Trial and OTA analysis were performed as explained previously. The results showed that in white wine all activated carbons except one reduced 100% of OTA. The commercial formulation that contains gelatin, bentonite and activated carbon reduced only 73% of OTA concentration. These results may provide useful information for winemakers, namely for the selection of the most appropriate oenological product for OTA removal, reducing wine toxicity and simultaneously enhancing food safety and wine quality. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wine" title="wine">wine</a>, <a href="https://publications.waset.org/abstracts/search?q=ota%20removal" title=" ota removal"> ota removal</a>, <a href="https://publications.waset.org/abstracts/search?q=food%20safety" title=" food safety"> food safety</a>, <a href="https://publications.waset.org/abstracts/search?q=fining" title=" fining"> fining</a> </p> <a href="https://publications.waset.org/abstracts/31580/food-safety-in-wine-removal-of-ochratoxin-a-in-contaminated-white-wine-using-commercial-fining-agents" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31580.pdf" target="_blank" class="btn btn-primary 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