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Castillo</title> <meta name="description" content="Search results for: A. Castillo"> <meta name="keywords" content="A. Castillo"> <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 d-lg-none navbar-toggler ml-auto" type="button" data-toggle="collapse" data-target="#navbarMenu" aria-controls="navbarMenu" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="w-100"> <div class="d-none d-lg-flex flex-row-reverse"> <form method="get" action="https://waset.org/search" class="form-inline my-2 my-lg-0"> <input class="form-control mr-sm-2" type="search" placeholder="Search Conferences" value="A. 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Castillo"> <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> 21</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: A. Castillo</h1> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">21</span> Security in Crosswalks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=A.%20Guti%C3%A9rrez">A. Gutiérrez</a>, <a href="https://publications.waset.org/search?q=A.%20Castillo"> A. Castillo</a>, <a href="https://publications.waset.org/search?q=J.M.%20G%C3%B3mez"> J.M. Gómez</a>, <a href="https://publications.waset.org/search?q=J.M.%20Guti%C3%A9rrez"> J.M. Gutiérrez</a>, <a href="https://publications.waset.org/search?q=A.%20Garc%C3%ADa-Cabot"> A. García-Cabot</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Lighting is not only important for the safety of traffic, but also it is very important for the protection of pedestrians. Improvement on visibility in a long distance, lighting, signing, reduces considerably the risk of accidents in crosswalks. This paper evaluates different aspects of crosswalks including signing and lighting to improve road safety. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=In%20pavement%20flashing%20warning%20lights" title="In pavement flashing warning lights">In pavement flashing warning lights</a>, <a href="https://publications.waset.org/search?q=street%20lighting" title=" street lighting"> street lighting</a>, <a href="https://publications.waset.org/search?q=signing" title=" signing"> signing</a>, <a href="https://publications.waset.org/search?q=visibility." title=" visibility."> visibility.</a> </p> <a href="https://publications.waset.org/12351/security-in-crosswalks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/12351/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/12351/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/12351/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/12351/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/12351/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/12351/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/12351/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/12351/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/12351/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/12351/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/12351.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">1778</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">20</span> Blackout on Outdoor Light</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=A.%20Castillo">A. Castillo</a>, <a href="https://publications.waset.org/search?q=A.%20Guti%C3%A9rrez"> A. Gutiérrez</a>, <a href="https://publications.waset.org/search?q=J.M.%20Guti%C3%A9rrez"> J.M. Gutiérrez</a>, <a href="https://publications.waset.org/search?q=J.M.%20G%C3%B3mez"> J.M. Gómez</a>, <a href="https://publications.waset.org/search?q=E.%20Garc%C3%ADa-L%C3%B3pez"> E. García-López</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The continued growth of the cities is causing an increase of the amount of surface to illuminate. However, this rise into lighting brings some unintended consequences such as increased of energy consumption or the light pollution. To make these effects less intrusive as possible some councils have chosen to perform a part-night lighting in some areas. Nonetheless, this kind of shutdown may cause serious problems which we intend to highlight in this paper. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Energy%20saving" title="Energy saving">Energy saving</a>, <a href="https://publications.waset.org/search?q=part-night%20lighting" title=" part-night lighting"> part-night lighting</a>, <a href="https://publications.waset.org/search?q=switch%20off" title=" switch off"> switch off</a>, <a href="https://publications.waset.org/search?q=vial%0D%0Asecurity" title=" vial security"> vial security</a> </p> <a href="https://publications.waset.org/4464/blackout-on-outdoor-light" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/4464/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/4464/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/4464/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/4464/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/4464/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/4464/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/4464/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/4464/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/4464/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/4464/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/4464.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">1427</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">19</span> Robotics, Education and Economy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=David%20G.%20Max%C3%ADnez">David G. Maxínez</a>, <a href="https://publications.waset.org/search?q=Francisco%20Javier%20S%C3%A1nchez%20Rangel"> Francisco Javier Sánchez Rangel</a>, <a href="https://publications.waset.org/search?q=Guillermo%20Castillo%20Tapia"> Guillermo Castillo Tapia</a>, <a href="https://publications.waset.org/search?q=Petra%20Baldovinos%0D%0ANoyola"> Petra Baldovinos Noyola</a>, <a href="https://publications.waset.org/search?q=M.%20Antonieta%20Garc%C3%ADa%20Galv%C3%A1n"> M. Antonieta García Galván</a>, <a href="https://publications.waset.org/search?q=Mois%C3%A9s%20G%20Sierra"> Moisés G Sierra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Describes the current situation of educational Robotics "the State of the art" its concept, its evolution their niches of opportunity, academic and business and the importance of education and academic outreach. It shows that the development of high-tech automated educational materials influence the teaching-learning process and that communication between machines and humans is a reality. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Education" title="Education">Education</a>, <a href="https://publications.waset.org/search?q=robotics" title=" robotics"> robotics</a>, <a href="https://publications.waset.org/search?q=robots" title=" robots"> robots</a>, <a href="https://publications.waset.org/search?q=technology" title=" technology"> technology</a>, <a href="https://publications.waset.org/search?q=innovation" title=" innovation"> innovation</a>, <a href="https://publications.waset.org/search?q=educational%20constructivism" title=" educational constructivism"> educational constructivism</a> </p> <a href="https://publications.waset.org/8552/robotics-education-and-economy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/8552/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/8552/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/8552/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/8552/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/8552/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/8552/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/8552/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/8552/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/8552/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/8552/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/8552.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">1895</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">18</span> Water Consumption on Spanish Households</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=A.%20Castillo">A. Castillo</a>, <a href="https://publications.waset.org/search?q=A.%20Guti%C3%A9rrez"> A. Gutiérrez</a>, <a href="https://publications.waset.org/search?q=J.%20M.%20Guti%C3%A9rrez"> J. M. Gutiérrez</a>, <a href="https://publications.waset.org/search?q=J.%20M.%20G%C3%B3mez"> J. M. Gómez</a>, <a href="https://publications.waset.org/search?q=E.%20Garc%C3%ADa-L%C3%B3pez"> E. García-López</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Water has always been a very precious resource. However, many of us do not fully understand or appreciate water-s value until there will be a shortage. We intended to analyze the water consumption into the Spanish households to understand their behavior according to the habitants of the house. In this research was carried out a survey of users, asking for water consumption of their households. The aim of this paper is get a reference value of consumers in Spanish households to help to check their bill and realize if their consumption is excessive, including some tips to decrease it. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Households" title="Households">Households</a>, <a href="https://publications.waset.org/search?q=survey" title=" survey"> survey</a>, <a href="https://publications.waset.org/search?q=water%20consumption." title=" water consumption."> water consumption.</a> </p> <a href="https://publications.waset.org/3014/water-consumption-on-spanish-households" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/3014/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/3014/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/3014/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/3014/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/3014/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/3014/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/3014/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/3014/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/3014/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/3014/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/3014.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">3652</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">17</span> Secret Communications Using Synchronized Sixth-Order Chuas's Circuits</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=L%C3%B3pez-Guti%C3%A9rrez%20R.M.">López-Gutiérrez R.M.</a>, <a href="https://publications.waset.org/search?q=Rodr%C3%ADguez-Orozco%20E."> Rodríguez-Orozco E.</a>, <a href="https://publications.waset.org/search?q=Cruz-Hern%C3%A1ndez%20C."> Cruz-Hernández C.</a>, <a href="https://publications.waset.org/search?q=Inzunza-Gonz%C3%A1lez%20E."> Inzunza-González E.</a>, <a href="https://publications.waset.org/search?q=Posadas-Castillo%20C.">Posadas-Castillo C.</a>, <a href="https://publications.waset.org/search?q=Garc%C3%ADa-Guerrero%20E.E."> García-Guerrero E.E.</a>, <a href="https://publications.waset.org/search?q=Cardoza-Avenda%C3%B1o%20L."> Cardoza-Avendaño L.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>In this paper, we use Generalized Hamiltonian systems approach to synchronize a modified sixth-order Chua's circuit, which generates hyperchaotic dynamics. Synchronization is obtained between the master and slave dynamics with the slave being given by an observer. We apply this approach to transmit private information (analog and binary), while the encoding remains potentially secure.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Hyperchaos%20synchronization" title="Hyperchaos synchronization">Hyperchaos synchronization</a>, <a href="https://publications.waset.org/search?q=sixth-order%20Chua%27s%20circuit" title=" sixth-order Chua's circuit"> sixth-order Chua's circuit</a>, <a href="https://publications.waset.org/search?q=observers" title=" observers"> observers</a>, <a href="https://publications.waset.org/search?q=simulation" title=" simulation"> simulation</a>, <a href="https://publications.waset.org/search?q=secure%20communication." title=" secure communication."> secure communication.</a> </p> <a href="https://publications.waset.org/15198/secret-communications-using-synchronized-sixth-order-chuass-circuits" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/15198/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/15198/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/15198/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/15198/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/15198/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/15198/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/15198/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/15198/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/15198/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/15198/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/15198.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">1498</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">16</span> Encrypted Audio Transmission Using Synchronized Nd: YAG Lasers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=R.M.%20L%C3%B3pez-Guti%C3%A9rrez">R.M. López-Gutiérrez</a>, <a href="https://publications.waset.org/search?q=C.%20Cruz-Hern%C3%A1ndez"> C. Cruz-Hernández</a>, <a href="https://publications.waset.org/search?q=C.%20Posadas-Castillo"> C. Posadas-Castillo</a>, <a href="https://publications.waset.org/search?q=E.E.Garc%C3%ADa-Guerrero"> E.E.García-Guerrero</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Encoded information based on synchronization of coupled chaotic Nd:YAG lasers in master-slave configuration is numerically studied. Encoding, transmission, and decoding of information in optical chaotic communication with a single channel is presented. We analyze the robustness of the encrypted audio transmission in a channel noise. In order to illustrate this synchronization robustness, we present two cases of study: synchronization and transmission with a single channel without and with noise in the channel.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Encryption" title="Encryption">Encryption</a>, <a href="https://publications.waset.org/search?q=Secure%20coomunication" title=" Secure coomunication"> Secure coomunication</a>, <a href="https://publications.waset.org/search?q=Chaos" title=" Chaos"> Chaos</a>, <a href="https://publications.waset.org/search?q=Synchronization" title=" Synchronization"> Synchronization</a>, <a href="https://publications.waset.org/search?q=Complex%20networks" title=" Complex networks"> Complex networks</a>, <a href="https://publications.waset.org/search?q=Nd%3AYAG%20laser." title=" Nd:YAG laser."> Nd:YAG laser.</a> </p> <a href="https://publications.waset.org/8338/encrypted-audio-transmission-using-synchronized-nd-yag-lasers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/8338/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/8338/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/8338/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/8338/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/8338/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/8338/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/8338/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/8338/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/8338/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/8338/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/8338.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">1534</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">15</span> Educational Robotics Constructivism and Modeling of Robots using Reverse Engineering</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=David%20G.%20Max%C3%ADnez">David G. Maxínez</a>, <a href="https://publications.waset.org/search?q=A.%20Ferreyra%20Ram%C3%ADrez"> A. Ferreyra Ramírez</a>, <a href="https://publications.waset.org/search?q=Ismael%20Echenique%20%C3%81lvarez"> Ismael Echenique Álvarez</a>, <a href="https://publications.waset.org/search?q=Francisco%20Javier%20S%C3%A1nchez%20Rangel"> Francisco Javier Sánchez Rangel</a>, <a href="https://publications.waset.org/search?q=Guillermo%20Castillo%20Tapia"> Guillermo Castillo Tapia</a>, <a href="https://publications.waset.org/search?q=Petra%20Baldivia%20Noyola"> Petra Baldivia Noyola</a>, <a href="https://publications.waset.org/search?q=Mar%C3%ADa%20Antonieta%20Garc%C3%ADa%20Galv%C3%A1n"> María Antonieta García Galván</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The project describes the modeling of various architectures mechatronics specifically morphologies of robots in an educational environment. Each structure developed by students of pre-school, primary and secondary was created using the concept of reverse engineering in a constructivist environment, to later be integrated in educational software that promotes the teaching of educational Robotics in a virtual and economic environment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Modeling" title="Modeling">Modeling</a>, <a href="https://publications.waset.org/search?q=constructivist" title=" constructivist"> constructivist</a>, <a href="https://publications.waset.org/search?q=engineering" title=" engineering"> engineering</a>, <a href="https://publications.waset.org/search?q=reverse" title=" reverse"> reverse</a>, <a href="https://publications.waset.org/search?q=robotics%20education" title=" robotics education"> robotics education</a>, <a href="https://publications.waset.org/search?q=virtual" title=" virtual"> virtual</a>, <a href="https://publications.waset.org/search?q=morphology." title=" morphology."> morphology.</a> </p> <a href="https://publications.waset.org/4392/educational-robotics-constructivism-and-modeling-of-robots-using-reverse-engineering" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/4392/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/4392/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/4392/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/4392/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/4392/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/4392/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/4392/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/4392/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/4392/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/4392/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/4392.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">1787</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">14</span> Exploring Unexplored Horizons: Advanced Fluid Mechanics Solutions for Sustainable Energy Technologies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Elvira%20S.%20Castillo">Elvira S. Castillo</a>, <a href="https://publications.waset.org/search?q=Surupa%20Shaw"> Surupa Shaw</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>This paper explores advanced applications of fluid mechanics in the context of sustainable energy. By examining the integration of fluid dynamics with renewable energy technologies, the research uncovers previously underutilized strategies for improving efficiency. Through theoretical analyses, the study demonstrates how fluid mechanics can be harnessed to optimize renewable energy systems. The findings contribute to expanding knowledge in sustainable energy by offering practical insights and methodologies for future research and technological advancements to address global energy challenges.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Fluid%20mechanics" title="Fluid mechanics">Fluid mechanics</a>, <a href="https://publications.waset.org/search?q=sustainable%20energy" title=" sustainable energy"> sustainable energy</a>, <a href="https://publications.waset.org/search?q=energy%20efficiency" title=" energy efficiency"> energy efficiency</a>, <a href="https://publications.waset.org/search?q=green%20energy." title=" green energy."> green energy.</a> </p> <a href="https://publications.waset.org/10013853/exploring-unexplored-horizons-advanced-fluid-mechanics-solutions-for-sustainable-energy-technologies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10013853/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10013853/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10013853/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10013853/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10013853/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10013853/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10013853/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10013853/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10013853/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10013853/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10013853.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">45</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13</span> Traffic Signs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=A.%20Guti%C3%A9rrez">A. Gutiérrez</a>, <a href="https://publications.waset.org/search?q=A.%20Castillo"> A. Castillo</a>, <a href="https://publications.waset.org/search?q=J.%20M.%20G%C3%B3mez"> J. M. Gómez</a>, <a href="https://publications.waset.org/search?q=J.%20M.%20Guti%C3%A9rrez"> J. M. Gutiérrez</a>, <a href="https://publications.waset.org/search?q=A.%20Garc%C3%ADa-Cabot"> A. García-Cabot</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Road signs are the elements of roads with a lot of influence in driver-s behavior. So that signals can fulfill its function, they must overcome visibility and durability requirements, particularly needed at night, when the coefficient of retroreflection becomes a decisive factor in ensuring road safety. Accepting that the visibility of the signage has implications for people-s safety, we understand the importance to fulfill its function: to foster the highest standards of service and safety in drivers. The usual conditions of perception of any sign are determined by: age of the driver, reflective material, luminosity, vehicle speed and emplacement. In this way, this paper evaluates the different signals to increase the safety road. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Luminosity" title="Luminosity">Luminosity</a>, <a href="https://publications.waset.org/search?q=orientation" title=" orientation"> orientation</a>, <a href="https://publications.waset.org/search?q=retroreflection" title=" retroreflection"> retroreflection</a>, <a href="https://publications.waset.org/search?q=traffic%20signs." title=" traffic signs."> traffic signs.</a> </p> <a href="https://publications.waset.org/8453/traffic-signs" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/8453/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/8453/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/8453/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/8453/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/8453/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/8453/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/8453/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/8453/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/8453/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/8453/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/8453.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">1656</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12</span> Urban Form, Heritage, and Disaster Prevention: What Do They Have in Common?</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Milton%20Montejano%20Castillo">Milton Montejano Castillo</a>, <a href="https://publications.waset.org/search?q=Tarsicio%20Pastrana%20Salcedo"> Tarsicio Pastrana Salcedo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Based on the hypothesis that disaster risk is constructed socially and historically, this article shows the importance of keeping alive the historical memory of disaster by means of architectural and urban heritage conservation. This is illustrated with three examples of Latin American World Heritage cities, where disasters like floods and earthquakes have shaped urban form. Therefore, the study of urban form or "Urban Morphology" is proposed as a tool to understand and analyze urban transformations with the documentation of the occurrence of disasters. Lessons learned from such cities may be useful to reduce disasters risk in contemporary built environments. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Conservation" title="Conservation">Conservation</a>, <a href="https://publications.waset.org/search?q=disaster%20risk%20reduction" title=" disaster risk reduction"> disaster risk reduction</a>, <a href="https://publications.waset.org/search?q=urban%0D%0Amorphology" title=" urban morphology"> urban morphology</a>, <a href="https://publications.waset.org/search?q=world%20heritage." title=" world heritage."> world heritage.</a> </p> <a href="https://publications.waset.org/10002196/urban-form-heritage-and-disaster-prevention-what-do-they-have-in-common" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10002196/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10002196/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10002196/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10002196/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10002196/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10002196/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10002196/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10002196/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10002196/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10002196/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10002196.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">2376</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">11</span> Statistical Approach to Basis Function Truncation in Digital Interpolation Filters</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=F.%20Castillo">F. Castillo</a>, <a href="https://publications.waset.org/search?q=J.%20Arellano"> J. Arellano</a>, <a href="https://publications.waset.org/search?q=S.%20S%C3%A1nchez"> S. Sánchez</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper an alternative analysis in the time domain is described and the results of the interpolation process are presented by means of functions that are based on the rule of conditional mathematical expectation and the covariance function. A comparison between the interpolation error caused by low order filters and the classic sinc(t) truncated function is also presented. When fewer samples are used, low-order filters have less error. If the number of samples increases, the sinc(t) type functions are a better alternative. Generally speaking there is an optimal filter for each input signal which depends on the filter length and covariance function of the signal. A novel scheme of work for adaptive interpolation filters is also presented. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Interpolation" title="Interpolation">Interpolation</a>, <a href="https://publications.waset.org/search?q=basis%20function" title=" basis function"> basis function</a>, <a href="https://publications.waset.org/search?q=over-sampling." title=" over-sampling."> over-sampling.</a> </p> <a href="https://publications.waset.org/13816/statistical-approach-to-basis-function-truncation-in-digital-interpolation-filters" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/13816/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/13816/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/13816/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/13816/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/13816/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/13816/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/13816/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/13816/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/13816/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/13816/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/13816.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">1555</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">10</span> Categorical Missing Data Imputation Using Fuzzy Neural Networks with Numerical and Categorical Inputs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Pilar%20Rey-del-Castillo">Pilar Rey-del-Castillo</a>, <a href="https://publications.waset.org/search?q=Jes%C3%BAs%20Carde%C3%B1osa"> Jesús Cardeñosa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>There are many situations where input feature vectors are incomplete and methods to tackle the problem have been studied for a long time. A commonly used procedure is to replace each missing value with an imputation. This paper presents a method to perform categorical missing data imputation from numerical and categorical variables. The imputations are based on Simpson-s fuzzy min-max neural networks where the input variables for learning and classification are just numerical. The proposed method extends the input to categorical variables by introducing new fuzzy sets, a new operation and a new architecture. The procedure is tested and compared with others using opinion poll data.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Classifier" title="Classifier">Classifier</a>, <a href="https://publications.waset.org/search?q=imputation%20techniques" title=" imputation techniques"> imputation techniques</a>, <a href="https://publications.waset.org/search?q=fuzzy%20systems" title=" fuzzy systems"> fuzzy systems</a>, <a href="https://publications.waset.org/search?q=fuzzy%20min-max%20neural%20networks." title=" fuzzy min-max neural networks."> fuzzy min-max neural networks.</a> </p> <a href="https://publications.waset.org/7285/categorical-missing-data-imputation-using-fuzzy-neural-networks-with-numerical-and-categorical-inputs" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/7285/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/7285/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/7285/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/7285/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/7285/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/7285/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/7285/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/7285/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/7285/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/7285/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/7285.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">1779</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">9</span> Quality-Driven Business Process Refactoring</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Mar%C3%ADa%20Fern%C3%A1ndez-Ropero">María Fernández-Ropero</a>, <a href="https://publications.waset.org/search?q=Ricardo%20P%C3%A9rez-Castillo"> Ricardo Pérez-Castillo</a>, <a href="https://publications.waset.org/search?q=Ismael%20Caballero"> Ismael Caballero</a>, <a href="https://publications.waset.org/search?q=Mario%20Piattini"> Mario Piattini</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Appropriate description of business processes through standard notations has become one of the most important assets for organizations. Organizations must therefore deal with quality faults in business process models such as the lack of understandability and modifiability. These quality faults may be exacerbated if business process models are mined by reverse engineering, e.g., from existing information systems that support those business processes. Hence, business process refactoring is often used, which change the internal structure of business processes whilst its external behavior is preserved. This paper aims to choose the most appropriate set of refactoring operators through the quality assessment concerning understandability and modifiability. These quality features are assessed through well-proven measures proposed in the literature. Additionally, a set of measure thresholds are heuristically established for applying the most promising refactoring operators, i.e., those that achieve the highest quality improvement according to the selected measures in each case. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=business%20process%20model" title="business process model">business process model</a>, <a href="https://publications.waset.org/search?q=modifiability" title=" modifiability"> modifiability</a>, <a href="https://publications.waset.org/search?q=refactoring" title=" refactoring"> refactoring</a>, <a href="https://publications.waset.org/search?q=understandability" title=" understandability"> understandability</a> </p> <a href="https://publications.waset.org/610/quality-driven-business-process-refactoring" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/610/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/610/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/610/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/610/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/610/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/610/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/610/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/610/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/610/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/610/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/610.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">1528</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8</span> Heavy Metals Estimation in Coastal Areas Using Remote Sensing, Field Sampling and Classical and Robust Statistic</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Elena%20Castillo-L%C3%B3pez">Elena Castillo-López</a>, <a href="https://publications.waset.org/search?q=Ra%C3%BAl%20Pereda"> Raúl Pereda</a>, <a href="https://publications.waset.org/search?q=Julio%20Manuel%20de%20Luis"> Julio Manuel de Luis</a>, <a href="https://publications.waset.org/search?q=Rub%C3%A9n%20P%C3%A9rez"> Rubén Pérez</a>, <a href="https://publications.waset.org/search?q=Felipe%20Pi%C3%B1a"> Felipe Piña</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Sediments are an important source of accumulation of toxic contaminants within the aquatic environment. Bioassays are a powerful tool for the study of sediments in relation to their toxicity, but they can be expensive. This article presents a methodology to estimate the main physical property of intertidal sediments in coastal zones: heavy metals concentration. This study, which was developed in the Bay of Santander (Spain), applies classical and robust statistic to CASI-2 hyperspectral images to estimate heavy metals presence and ecotoxicity (TOC). Simultaneous fieldwork (radiometric and chemical sampling) allowed an appropriate atmospheric correction to CASI-2 images.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Remote%20sensing" title="Remote sensing">Remote sensing</a>, <a href="https://publications.waset.org/search?q=intertidal%20sediment" title=" intertidal sediment"> intertidal sediment</a>, <a href="https://publications.waset.org/search?q=airborne%20sensors" title=" airborne sensors"> airborne sensors</a>, <a href="https://publications.waset.org/search?q=heavy%20metals" title=" heavy metals"> heavy metals</a>, <a href="https://publications.waset.org/search?q=ecotoxicity" title=" ecotoxicity"> ecotoxicity</a>, <a href="https://publications.waset.org/search?q=robust%20statistic" title=" robust statistic"> robust statistic</a>, <a href="https://publications.waset.org/search?q=estimation." title=" estimation."> estimation.</a> </p> <a href="https://publications.waset.org/10007955/heavy-metals-estimation-in-coastal-areas-using-remote-sensing-field-sampling-and-classical-and-robust-statistic" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10007955/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10007955/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10007955/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10007955/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10007955/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10007955/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10007955/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10007955/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10007955/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10007955/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10007955.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">1253</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">7</span> Development of Cross Curricular Competences in University Classrooms - Public Speaking</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=M.%20T.%20Becerra">M. T. Becerra</a>, <a href="https://publications.waset.org/search?q=F.%20Mart%C3%ADn"> F. Martín</a>, <a href="https://publications.waset.org/search?q=P.%20Guti%C3%A9rrez"> P. Gutiérrez</a>, <a href="https://publications.waset.org/search?q=S.%20Cubo"> S. Cubo</a>, <a href="https://publications.waset.org/search?q=E.%20Iglesias"> E. Iglesias</a>, <a href="https://publications.waset.org/search?q=A.%20A.%20S%C3%A1enz%20del%20Castillo"> A. A. Sáenz del Castillo</a>, <a href="https://publications.waset.org/search?q=P.%20Ca%C3%B1amero"> P. Cañamero</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>The consolidation of the European Higher Education Area (EHEA) in universities has led to significant changes in student training. This paper, part of a Teaching Innovation Project, starts from new training requirements that are fit within Undergraduate Thesis Project, a subject that culminate student learning. Undergraduate Thesis Project is current assessment system that weigh the student acquired training in university education. Students should develop a range of cross curricular competences such as public presentation of ideas, problems and solutions both orally and writing in Undergraduate Thesis Project. Specifically, we intend with our innovation proposal to provide resources that enable university students from Teacher Degree in Education Faculty of University of Extremadura (Spain) to develop the cross curricular competence of public speaking.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Interaction" title="Interaction">Interaction</a>, <a href="https://publications.waset.org/search?q=Public%20Speaking" title=" Public Speaking"> Public Speaking</a>, <a href="https://publications.waset.org/search?q=Student" title=" Student"> Student</a>, <a href="https://publications.waset.org/search?q=University." title=" University."> University.</a> </p> <a href="https://publications.waset.org/9998309/development-of-cross-curricular-competences-in-university-classrooms-public-speaking" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/9998309/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/9998309/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/9998309/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/9998309/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/9998309/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/9998309/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/9998309/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/9998309/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/9998309/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/9998309/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/9998309.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">1900</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6</span> Analysis of the Accuracy of Earth Movement with Drone Surveys</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Ra%C3%BAl%20Pereda%20Garc%C3%ADa">Raúl Pereda García</a>, <a href="https://publications.waset.org/search?q=Julio%20Manuel%20de%20Luis%20Ruiz"> Julio Manuel de Luis Ruiz</a>, <a href="https://publications.waset.org/search?q=Elena%20Castillo%20L%C3%B3pez"> Elena Castillo López</a>, <a href="https://publications.waset.org/search?q=Rub%C3%A9n%20P%C3%A9rez%20%C3%81lvarez"> Rubén Pérez Álvarez</a>, <a href="https://publications.waset.org/search?q=Felipe%20Pi%C3%B1a%20Garc%C3%ADa"> Felipe Piña García</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>New technologies for the capture of point clouds have experienced a great advance in recent years. In this way, its use has been extended in geomatics, providing measurement solutions that have been popularized without there being, many times, a detailed study of its accuracy. This research focuses on the study of the viability of topographic works with drones incorporating different sensors sensitive to the visible spectrum. The fundamentals have been applied to a road, located in Cantabria (Spain), where a platform extension and the reform of a riprap were being constructed. A total of six flights were made during two months, all of them with GPS as part of the photogrammetric process, and the results were contrasted with those measured with total station. The obtained results show that the choice of the camera and the planning of the flight have an important impact on the accuracy. In fact, the representations with a level of detail corresponding to 1/1000 scale are admissible, depending on the existing vegetation, and obtaining better results in the area of the riprap. This set of techniques is, therefore, suitable for the control of earthworks in road works but with certain limitations which are exposed in this paper.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Drone" title="Drone">Drone</a>, <a href="https://publications.waset.org/search?q=earth%20movement%20control" title=" earth movement control"> earth movement control</a>, <a href="https://publications.waset.org/search?q=global%20position%20system" title=" global position system"> global position system</a>, <a href="https://publications.waset.org/search?q=surveying%20technology." title=" surveying technology."> surveying technology.</a> </p> <a href="https://publications.waset.org/10010579/analysis-of-the-accuracy-of-earth-movement-with-drone-surveys" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10010579/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10010579/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10010579/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10010579/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10010579/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10010579/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10010579/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10010579/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10010579/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10010579/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10010579.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">715</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5</span> Absent Theaters: A Virtual Reconstruction from Memories</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=P.%20Castillo%20Mu%C3%B1oz">P. Castillo Muñoz</a>, <a href="https://publications.waset.org/search?q=A.%20Lara%20Ram%C3%ADrez"> A. Lara Ramírez</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Absent Theaters is a project that virtually reconstructs three theaters that existed in the twentieth century, demolished in the city of Medellin, Colombia: Circo España, Bolívar, and Junín. Virtual reconstruction is used as an excuse to talk with those who lived in their childhood and youth cultural spaces that formed a whole generation. Around 100 people who witnessed these theaters were interviewed. The means used to perform the oral history work was the virtual reconstruction of the interior of the theaters that were presented to the interviewees through the Virtual Reality glasses. The voices of people between 60 and 103 years old were used to generate a transmission of knowledge to the new generations about the importance of theaters as essential places for the city, as spaces generating social relations and knowledge of other cultures. Oral stories about events, the historical and social context of the city, were mixed with archive images and animations of the architectural transformations of these places. Oral stories about events, the historical and social context of the city, were mixed with archive images and animations of the architectural transformations of these places, with the purpose of compiling a collective discourse around cultural activities, heritage, and memory of Medellin. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Culture" title="Culture">Culture</a>, <a href="https://publications.waset.org/search?q=heritage" title=" heritage"> heritage</a>, <a href="https://publications.waset.org/search?q=oral%20history" title=" oral history"> oral history</a>, <a href="https://publications.waset.org/search?q=theaters" title=" theaters"> theaters</a>, <a href="https://publications.waset.org/search?q=virtual%20reality." title=" virtual reality. "> virtual reality. </a> </p> <a href="https://publications.waset.org/10011160/absent-theaters-a-virtual-reconstruction-from-memories" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10011160/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10011160/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10011160/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10011160/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10011160/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10011160/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10011160/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10011160/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10011160/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10011160/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10011160.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">1121</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4</span> Feasibility Study of Mine Tailing’s Treatment by Acidithiobacillus thiooxidans DSM 26636 </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=M.%20G%C3%B3mez-Ram%C3%ADrez">M. Gómez-Ramírez</a>, <a href="https://publications.waset.org/search?q=A.%20Rivas-Castillo"> A. Rivas-Castillo</a>, <a href="https://publications.waset.org/search?q=I.%20Rodr%C3%ADguez-Pozos"> I. Rodríguez-Pozos</a>, <a href="https://publications.waset.org/search?q=R.%20A.%20Avalos-Zu%C3%B1iga"> R. A. Avalos-Zuñiga</a>, <a href="https://publications.waset.org/search?q=N.%20G.%20Rojas-Avelizapa"> N. G. Rojas-Avelizapa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Among the diverse types of pollutants produced by anthropogenic activities, metals represent a serious threat, due to their accumulation in ecosystems and their elevated toxicity. The mine tailings of abandoned mines contain high levels of metals such as arsenic (As), zinc (Zn), copper (Cu), and lead (Pb), which do not suffer any degradation process, they are accumulated in environment. Abandoned mine tailings potentially could contaminate rivers and aquifers representing a risk for human health due to their high metal content. In an attempt to remove the metals and thereby mitigate the environmental pollution, an environmentally friendly and economical method of bioremediation has been introduced. Bioleaching has been actively studied over the last several years, and it is one of the bioremediation solutions used to treat heavy metals contained in sewage sludge, sediment and contaminated soil. <em>Acidithiobacillus thiooxidans</em>, an extremely acidophilic, chemolithoautotrophic, gram-negative, rod shaped microorganism, which is typically related to Cu mining operations (bioleaching), has been well studied for industrial applications. The sulfuric acid produced plays a major role in bioleaching. Specifically, <em>Acidithiobacillus thiooxidans</em> strain DSM 26636 has been able to leach Al, Ni, V, Fe, Mg, Si, and Ni contained in slags from coal combustion wastes. The present study reports the ability of <em>A. thiooxidans</em> DSM 26636 for the bioleaching of metals contained in two different mine tailing samples (MT1 and MT2). It was observed that Al, Fe, and Mn were removed in 36.3±1.7, 191.2±1.6, and 4.5±0.2 mg/kg for MT1, and in 74.5±0.3, 208.3±0.5, and 20.9±0.1 for MT2. Besides, < 1.5 mg/kg of Au and Ru were also bioleached from MT1; in MT2, bioleaching of Zn was observed at 55.7±1.3 mg/kg, besides removal of < 1.5 mg/kg was observed for As, Ir, Li, and 0.6 for Os in this residue. These results show the potential of strain DSM 26636 for the bioleaching of metals that came from different mine tailings.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=A.%20thiooxidans" title="A. thiooxidans">A. thiooxidans</a>, <a href="https://publications.waset.org/search?q=bioleaching" title=" bioleaching"> bioleaching</a>, <a href="https://publications.waset.org/search?q=metals" title=" metals"> metals</a>, <a href="https://publications.waset.org/search?q=mine%20tailings." title=" mine tailings."> mine tailings.</a> </p> <a href="https://publications.waset.org/10009866/feasibility-study-of-mine-tailings-treatment-by-acidithiobacillus-thiooxidans-dsm-26636" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10009866/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10009866/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10009866/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10009866/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10009866/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10009866/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10009866/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10009866/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10009866/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10009866/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10009866.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">987</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> Mental Health in Young People Living Poverty in Southeastern Mexico</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Teresita%20Castillo">Teresita Castillo</a>, <a href="https://publications.waset.org/search?q=Concepci%C3%B3n%20Campo"> Concepción Campo</a>, <a href="https://publications.waset.org/search?q=Carlos%20Carrillo"> Carlos Carrillo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Attention, comprehension and solution of poverty can be worked considering a socioeconomic approach; but it also can be attended from a multidimensional perspective that allows considering other dimensions including psychological variables manifested in behaviors, thoughts and feelings concerning this phenomenon. Considering the importance of research regarding psychology and poverty, this paper presents results about psychosocial impacts of poverty on young people related to mental health issues and its relation to fatalism. These results are part of a bigger transcultural study done in collaboration with the Federal University of Ceará, in Brazil. Participants were 101 young men and women, between 12 and 29 years old, living in two emarginated suburbs in Mérida, Mexico, located in the southeastern zone of the country. Participants responded the Self Report Questionnaire (SRQ- 20), with 20 items dichotomous presence/absence that assess anxious and depressive issues and the Fatalism Scale, with 30 items Likert five-point spread over five factors. Results show that one third of participants mentioned to get easily frightened, feeling nervous, tense or worried as well as unhappy, difficulty on making decisions, and troubles in thinking clearly. About 20% mentioned to have headaches, to sleep badly, to cry more than usual and to feel tired all the time. Regarding Fatalism, results show there is a greater internal allocation and lower external attribution in young participants, but they have some symptoms regarding poor mental health. Discussion is in terms of possible explanations about the results and emphasizes the importance of holistic approaches for a better understanding of the psychosocial impacts of poverty on young people and strengthening the resilience to increase positive mental health in emarginated contexts, where Community Psychology could have an important duty in community health promotion.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Fatalism" title="Fatalism">Fatalism</a>, <a href="https://publications.waset.org/search?q=mental%20health" title=" mental health"> mental health</a>, <a href="https://publications.waset.org/search?q=poverty" title=" poverty"> poverty</a>, <a href="https://publications.waset.org/search?q=youth." title=" youth."> youth.</a> </p> <a href="https://publications.waset.org/10004835/mental-health-in-young-people-living-poverty-in-southeastern-mexico" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10004835/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10004835/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10004835/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10004835/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10004835/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10004835/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10004835/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10004835/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10004835/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10004835/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10004835.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">1124</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2</span> Bioleaching of Metals Contained in Spent Catalysts by Acidithiobacillus thiooxidans DSM 26636</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Andrea%20M.%20Rivas-Castillo">Andrea M. Rivas-Castillo</a>, <a href="https://publications.waset.org/search?q=Marlenne%20G%C3%B3mez-Ramirez"> Marlenne Gómez-Ramirez</a>, <a href="https://publications.waset.org/search?q=Isela%20Rodr%C3%ADguez-Pozos"> Isela Rodríguez-Pozos</a>, <a href="https://publications.waset.org/search?q=Norma%20G.%20Rojas-Avelizapa"> Norma G. Rojas-Avelizapa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Spent catalysts are considered as hazardous residues of major concern, mainly due to the simultaneous presence of several metals in elevated concentrations. Although hydrometallurgical, pyrometallurgical and chelating agent methods are available to remove and recover some metals contained in spent catalysts; these procedures generate potentially hazardous wastes and the emission of harmful gases. Thus, biotechnological treatments are currently gaining importance to avoid the negative impacts of chemical technologies. To this end, diverse microorganisms have been used to assess the removal of metals from spent catalysts, comprising bacteria, archaea and fungi, whose resistance and metal uptake capabilities differ depending on the microorganism tested. Acidophilic sulfur oxidizing bacteria have been used to investigate the biotreatment and extraction of valuable metals from spent catalysts, namely <em>Acidithiobacillus thiooxidans</em> and <em>Acidithiobacillus</em> <em>ferroxidans</em>, as they present the ability to produce leaching agents such as sulfuric acid and sulfur oxidation intermediates. In the present work, the ability of <em>A. thiooxidans</em> DSM 26636 for the bioleaching of metals contained in five different spent catalysts was assessed by growing the culture in modified Starkey mineral medium (with elemental sulfur at 1%, w/v), and 1% (w/v) pulp density of each residue for up to 21 days at 30 °C and 150 rpm. Sulfur-oxidizing activity was periodically evaluated by determining sulfate concentration in the supernatants according to the NMX-k-436-1977 method. The production of sulfuric acid was assessed in the supernatants as well, by a titration procedure using NaOH 0.5 M with bromothymol blue as acid-base indicator, and by measuring pH using a digital potentiometer. On the other hand, Inductively Coupled Plasma - Optical Emission Spectrometry was used to analyze metal removal from the five different spent catalysts by <em>A. thiooxidans</em> DSM 26636. Results obtained show that, as could be expected, sulfuric acid production is directly related to the diminish of pH, and also to highest metal removal efficiencies. It was observed that Al and Fe are recurrently removed from refinery spent catalysts regardless of their origin and previous usage, although these removals may vary from 9.5 ± 2.2 to 439 ± 3.9 mg/kg for Al, and from 7.13 ± 0.31 to 368.4 ± 47.8 mg/kg for Fe, depending on the spent catalyst proven. Besides, bioleaching of metals like Mg, Ni, and Si was also obtained from automotive spent catalysts, which removals were of up to 66 ± 2.2, 6.2±0.07, and 100±2.4, respectively. Hence, the data presented here exhibit the potential of <em>A. thiooxidans</em> DSM 26636 for the simultaneous bioleaching of metals contained in spent catalysts from diverse provenance.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Acidithiobacillus%20thiooxidans" title="Acidithiobacillus thiooxidans">Acidithiobacillus thiooxidans</a>, <a href="https://publications.waset.org/search?q=spent%20catalysts" title=" spent catalysts"> spent catalysts</a>, <a href="https://publications.waset.org/search?q=bioleaching" title=" bioleaching"> bioleaching</a>, <a href="https://publications.waset.org/search?q=metals" title=" metals"> metals</a>, <a href="https://publications.waset.org/search?q=sulfuric%20acid" title=" sulfuric acid"> sulfuric acid</a>, <a href="https://publications.waset.org/search?q=sulfur-oxidizing%20activity." title=" sulfur-oxidizing activity."> sulfur-oxidizing activity.</a> </p> <a href="https://publications.waset.org/10009767/bioleaching-of-metals-contained-in-spent-catalysts-by-acidithiobacillus-thiooxidans-dsm-26636" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10009767/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10009767/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10009767/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10009767/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10009767/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10009767/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10009767/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10009767/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10009767/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10009767/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10009767.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">1032</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1</span> Child Sexual Abuse Prevention: Evaluation of the Program “Sharing Mouth to Mouth: My Body, Nobody Can Touch It”</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Faride%20Pe%C3%B1a">Faride Peña</a>, <a href="https://publications.waset.org/search?q=Teresita%20Castillo"> Teresita Castillo</a>, <a href="https://publications.waset.org/search?q=Concepci%C3%B3n%20Campo"> Concepción Campo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Sexual violence, and particularly child sexual abuse, is a serious problem all over the world, México included. Given its importance, there are several preventive and care programs done by the government and the civil society all over the country but most of them are developed in urban areas even though these problems are especially serious in rural areas. Yucatán, a state in southern México, occupies one of the first places in child sexual abuse. Considering the above, the University Unit of Clinical Research and Victimological Attention (UNIVICT) of the Autonomous University of Yucatan, designed, implemented and is currently evaluating the program named “Sharing Mouth to Mouth: My Body, Nobody Can Touch It”, a program to prevent child sexual abuse in rural communities of Yucatán, México. Its aim was to develop skills for the detection of risk situations, providing protection strategies and mechanisms for prevention through culturally relevant psycho-educative strategies to increase personal resources in children, in collaboration with parents, teachers, police and municipal authorities. The diagnosis identified that a particularly vulnerable population were children between 4 and 10 years. The program run during 2015 in primary schools in the municipality whose inhabitants are mostly Mayan. The aim of this paper is to present its evaluation in terms of its effectiveness and efficiency. This evaluation included documental analysis of the work done in the field, psycho-educational and recreational activities with children, evaluation of knowledge by participating children and interviews with parents and teachers. The results show high efficiency in fulfilling the tasks and achieving primary objectives. The efficiency shows satisfactory results but also opportunity areas that can be resolved with minor adjustments to the program. The results also show the importance of including culturally relevant strategies and activities otherwise it minimizes possible achievements. Another highlight is the importance of participatory action research in preventive approaches to child sexual abuse since by becoming aware of the importance of the subject people participate more actively; in addition to design culturally appropriate strategies and measures so that the proposal may not be distant to the people. Discussion emphasizes the methodological implications of prevention programs (convenience of using participatory action research (PAR), importance of monitoring and mediation during implementation, developing detection skills tools in creative ways using psycho-educational interactive techniques and working assessment issued by the participants themselves). As well, it is important to consider the holistic character this type of program should have, in terms of incorporating social and culturally relevant characteristics, according to the community individuality and uniqueness, consider type of communication to be used and children’ language skills considering that there should be variations strongly linked to a specific cultural context.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Child%20sexual%20abuse" title="Child sexual abuse">Child sexual abuse</a>, <a href="https://publications.waset.org/search?q=evaluation" title=" evaluation"> evaluation</a>, <a href="https://publications.waset.org/search?q=PAR" title=" PAR"> PAR</a>, <a href="https://publications.waset.org/search?q=prevention." title=" prevention."> prevention.</a> </p> <a href="https://publications.waset.org/10004663/child-sexual-abuse-prevention-evaluation-of-the-program-sharing-mouth-to-mouth-my-body-nobody-can-touch-it" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10004663/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10004663/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10004663/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10004663/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10004663/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10004663/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10004663/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10004663/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10004663/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10004663/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10004663.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">1246</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a 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