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A. da Silva Neto</title> <meta name="description" content="Search results for: Ruy D. A. da Silva Neto"> <meta name="keywords" content="Ruy D. A. da Silva Neto"> <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="Ruy D. 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A. da Silva Neto"> <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> 460</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Ruy D. A. da Silva Neto</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">460</span> Evaluation of PTFE Composites with Mineral Tailing Considering Friction, Wear and Cost</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ant%C3%B4nio%20P.%20de%20Ara%C3%BAjo%20Neto">Antônio P. de Araújo Neto</a>, <a href="https://publications.waset.org/abstracts/search?q=Ruy%20D.%20A.%20da%20Silva%20Neto"> Ruy D. A. da Silva Neto</a>, <a href="https://publications.waset.org/abstracts/search?q=Juliana%20R.%20de%20Souza"> Juliana R. de Souza</a>, <a href="https://publications.waset.org/abstracts/search?q=Salete%20K.%20P.%20de%20Medeiros"> Salete K. P. de Medeiros</a>, <a href="https://publications.waset.org/abstracts/search?q=Jo%C3%A3o%20T.%20N.%20de%20Medeiros"> João T. N. de Medeiros</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The tribological test with Pin-On-Disc configuration measures friction and wear properties in dry or lubricated sliding surfaces of a variety of materials and coatings. Polymeric matrix composites loaded with mineral filler were used, 1%, 3%, 10%, 30%, and 50% mass percentage of filler, to reduce the material cost by using mineral tailings. Using a pin-on-disc tribometer to quantify coefficient of friction and wear resistance of the specimens. The parameters known to performing the test were 300 rpm rotation, normal load of 16N and duration of 33.5 minutes. The composite with 10% mineral filler performed better, considering that the wear resistance was good when compared to the other compositions and an average low coefficient of friction, in the order of μ ≤ 0.15. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=microcomposites" title="microcomposites">microcomposites</a>, <a href="https://publications.waset.org/abstracts/search?q=microparticles%20tailings%20of%20scheelite" title=" microparticles tailings of scheelite"> microparticles tailings of scheelite</a>, <a href="https://publications.waset.org/abstracts/search?q=PTFE" title=" PTFE"> PTFE</a>, <a href="https://publications.waset.org/abstracts/search?q=tribology" title=" tribology"> tribology</a> </p> <a href="https://publications.waset.org/abstracts/43127/evaluation-of-ptfe-composites-with-mineral-tailing-considering-friction-wear-and-cost" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43127.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">369</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">459</span> Automation of Kitchen Chemical in the Textile Industry</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jos%C3%A9%20Luiz%20da%20Silva%20Neto">José Luiz da Silva Neto</a>, <a href="https://publications.waset.org/abstracts/search?q=Renato%20Sipelli%20Silva"> Renato Sipelli Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=%C3%89rick%20Arag%C3%A3o%20Ribeiro"> Érick Aragão Ribeiro</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The automation of industrial processes plays a vital role in industries today, becoming an integral and important part of the industrial process and modern production. The process control systems are designed to maximize production, reduce costs and minimize risks in production. However, these systems are generally not deployed methodologies and planning. So that this article describes the development of an automation system of a kitchen preparation of chemicals in the textile industry based on a retrofitting methodology that provides more quality into the process at a lower cost. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=automation" title="automation">automation</a>, <a href="https://publications.waset.org/abstracts/search?q=textile%20industry" title=" textile industry"> textile industry</a>, <a href="https://publications.waset.org/abstracts/search?q=kitchen%20chemical" title=" kitchen chemical"> kitchen chemical</a>, <a href="https://publications.waset.org/abstracts/search?q=information%20integration" title=" information integration"> information integration</a> </p> <a href="https://publications.waset.org/abstracts/41010/automation-of-kitchen-chemical-in-the-textile-industry" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41010.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">427</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">458</span> Port Governance in Santos, Brazil: A Qualitative Approach</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Guilherme%20B.%20B.%20Vieira">Guilherme B. B. Vieira</a>, <a href="https://publications.waset.org/abstracts/search?q=Rafael%20M.%20da%20Silva"> Rafael M. da Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Eliana%20T.%20P.%20Senna"> Eliana T. P. Senna</a>, <a href="https://publications.waset.org/abstracts/search?q=Luiz%20A.%20S.%20Senna"> Luiz A. S. Senna</a>, <a href="https://publications.waset.org/abstracts/search?q=Francisco%20J.%20Kliemann%20Neto"> Francisco J. Kliemann Neto</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Given the importance of ports as links in the global supply chains and because they are key elements to induce competitiveness in their hinterlands, the number of studies devoted to port governance, management and operations has increased in the last decades. Some of these studies address the port governance model as an element to improve coordination among the actors of the port logistics chain and to generate a better port performance. In this context, the present study analyzes the governance of Port of Santos through individual interviews with port managers, based on a conceptual model that considers the key dimensions associated with port governance. The results reinforce the usefulness of the applied model and highlight some existing improvement opportunities in the port studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=port%20governance" title="port governance">port governance</a>, <a href="https://publications.waset.org/abstracts/search?q=model" title=" model"> model</a>, <a href="https://publications.waset.org/abstracts/search?q=Port%20of%20Santos" title=" Port of Santos"> Port of Santos</a>, <a href="https://publications.waset.org/abstracts/search?q=managers%E2%80%99%20perception" title=" managers’ perception"> managers’ perception</a> </p> <a href="https://publications.waset.org/abstracts/14168/port-governance-in-santos-brazil-a-qualitative-approach" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14168.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">457</span> Port Governance Model by International Freight Forwarders’ Point of View: A Study at Port of Santos - Brazil</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Guilherme%20B.%20B.%20Vieira">Guilherme B. B. Vieira</a>, <a href="https://publications.waset.org/abstracts/search?q=Rafael%20M.%20da%20Silva"> Rafael M. da Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Eliana%20T.%20P.%20Senna"> Eliana T. P. Senna</a>, <a href="https://publications.waset.org/abstracts/search?q=Luiz%20A.%20S.%20Senna"> Luiz A. S. Senna</a>, <a href="https://publications.waset.org/abstracts/search?q=Francisco%20J.%20Kliemann%20Neto"> Francisco J. Kliemann Neto</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Due to the importance of ports to trade and economic development of the regions in which they are inserted, in recent decades the number of studies devoted to this subject has increased. Part of these studies consider the ports as business agglomerations and focuses on port governance. This is an important approach since the port performance is the result of activities performed by actors belonging to the port-logistics chain, which need to be properly coordinated. This coordination takes place through a port governance model. Given this context, this study aims to analyze the governance model of the port of Santos from the perspective of port customers. To do this, a closed-ended questionnaire based on a conceptual model that considers the key dimensions associated with port governance was applied to the international freight forwarders that operate in the port. The results show the applicability of the considered model and highlight improvement opportunities to be implemented at the port of Santos. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=port%20governance" title="port governance">port governance</a>, <a href="https://publications.waset.org/abstracts/search?q=model" title=" model"> model</a>, <a href="https://publications.waset.org/abstracts/search?q=Port%20of%20Santos" title=" Port of Santos"> Port of Santos</a>, <a href="https://publications.waset.org/abstracts/search?q=customers%E2%80%99%20perception" title=" customers’ perception"> customers’ perception</a> </p> <a href="https://publications.waset.org/abstracts/14167/port-governance-model-by-international-freight-forwarders-point-of-view-a-study-at-port-of-santos-brazil" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14167.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">452</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">456</span> Modelling Ibuprofen with Human Albumin</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=U.%20L.%20Fulco">U. L. Fulco</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20L.%20Albuquerque"> E. L. Albuquerque</a>, <a href="https://publications.waset.org/abstracts/search?q=Jos%C3%A9%20X.%20Lima%20Neto"> José X. Lima Neto</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20R.%20Da%20Silva"> L. R. Da Silva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The binding of the nonsteroidal anti-inflammatory drug ibuprofen (IBU) to human serum albumin (HSA) is investigated using density functional theory (DFT) calculations within a fragmentation strategy. Crystallographic data for the IBU–HSA supramolecular complex shows that the ligand is confined to a large cavity at the subdomain IIIA and at the interface between the subdomains IIA and IIB, whose binding sites are FA3/FA4 and FA6, respectively. The interaction energy between the IBU molecule and each amino acid residue of these HSA binding pockets was calculated using the Molecular Fractionation with Conjugate Caps (MFCC) approach employing a dispersion corrected exchange–correlation functional. Our investigation shows that the total interaction energy of IBU bound to HSA at binding sites of the fatty acids FA3/FA4 (FA6) converges only for a pocket radius of at least 8.5 °A, mainly due to the action of residues Arg410, Lys414 and Ser489 (Lys351, Ser480 and Leu481) and residues in nonhydrophobic domains, namely Ile388, Phe395, Phe403, Leu407, Leu430, Val433, and Leu453 (Phe206, Ala210, Ala213, and Leu327), which is unusual. Our simulations are valuable for a better understanding of the binding mechanism of IBU to albumin and can lead to the rational design and the development of novel IBU-derived drugs with improved potency. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ibuprofen" title="ibuprofen">ibuprofen</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20serum%20albumin" title=" human serum albumin"> human serum albumin</a>, <a href="https://publications.waset.org/abstracts/search?q=density%20functional%20theory" title=" density functional theory"> density functional theory</a>, <a href="https://publications.waset.org/abstracts/search?q=binding%20energies" title=" binding energies"> binding energies</a> </p> <a href="https://publications.waset.org/abstracts/46649/modelling-ibuprofen-with-human-albumin" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/46649.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">347</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">455</span> RF Propagation Analysis in Outdoor Environments Using RSSI Measurements Applied in ZigBee Sensor Networks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Teles%20de%20Sales%20Bezerra">Teles de Sales Bezerra</a>, <a href="https://publications.waset.org/abstracts/search?q=Saulo%20Aislan%20da%20Silva%20Eleuterio"> Saulo Aislan da Silva Eleuterio</a>, <a href="https://publications.waset.org/abstracts/search?q=Jos%C3%A9%20Anderson%20Rodrigues%20de%20Souza"> José Anderson Rodrigues de Souza</a>, <a href="https://publications.waset.org/abstracts/search?q=Jeronimo%20Silva%20Rocha"> Jeronimo Silva Rocha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Propagation in radio frequency is a constant concern in the application of Wireless Sensor Networks (WSN), the behavior of an environment determines how good the quality of signal reception. The objective of this paper is to analyze the behavior of a WSN in an environment for agriculture where environmental variables are present and correlate the capture of values received signal strength (RSSI) with a propagation model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=propagation" title="propagation">propagation</a>, <a href="https://publications.waset.org/abstracts/search?q=WSN" title=" WSN"> WSN</a>, <a href="https://publications.waset.org/abstracts/search?q=agriculture" title=" agriculture"> agriculture</a>, <a href="https://publications.waset.org/abstracts/search?q=quality" title=" quality"> quality</a> </p> <a href="https://publications.waset.org/abstracts/20471/rf-propagation-analysis-in-outdoor-environments-using-rssi-measurements-applied-in-zigbee-sensor-networks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20471.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">755</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">454</span> A Proposal of Ontology about Brazilian Government Transparency Portal</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Estela%20Mayra%20de%20Moura%20Vianna">Estela Mayra de Moura Vianna</a>, <a href="https://publications.waset.org/abstracts/search?q=Thiago%20Jos%C3%A9%20Tavares%20%C3%81vila"> Thiago José Tavares Ávila</a>, <a href="https://publications.waset.org/abstracts/search?q=Bruno%20Morais%20Silva"> Bruno Morais Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Diego%20Henrique%20Bezerra"> Diego Henrique Bezerra</a>, <a href="https://publications.waset.org/abstracts/search?q=Paulo%20Henrique%20Gomes%20Silva"> Paulo Henrique Gomes Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Alan%20Pedro%20da%20Silva"> Alan Pedro da Silva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Brazilian Federal Constitution defines the access to information as a crucial right of the citizen and the Law on Access to Public Information, which regulates this right. Accordingly, the Fiscal Responsibility Act, 2000, amended in 2009 by the “Law of Transparency”, began demanding a wider disclosure of public accounts for the society, including electronic media for public access. Thus, public entities began to create "Transparency Portals," which aim to gather a diversity of data and information. However, this information, in general, is still published in formats that do not simplify understanding of the data by citizens and that could be better especially available for audit purposes. In this context, a proposal of ontology about Brazilian Transparency Portal can play a key role in how these data will be better available. This study aims to identify and implement in ontology, the data model about Transparency Portal ecosystem, with emphasis in activities that use these data for some applications, like audits, press activities, social government control, and others. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=audit" title="audit">audit</a>, <a href="https://publications.waset.org/abstracts/search?q=government%20transparency" title=" government transparency"> government transparency</a>, <a href="https://publications.waset.org/abstracts/search?q=ontology" title=" ontology"> ontology</a>, <a href="https://publications.waset.org/abstracts/search?q=public%20sector" title=" public sector"> public sector</a> </p> <a href="https://publications.waset.org/abstracts/14657/a-proposal-of-ontology-about-brazilian-government-transparency-portal" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14657.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">506</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">453</span> The Regulation on Human Exposure to Electromagnetic Fields for Brazilian Power System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hugo%20Manoel%20Olivera%20Da%20Silva">Hugo Manoel Olivera Da Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Ricardo%20Silva%20Th%C3%A9%20Pontes"> Ricardo Silva Thé Pontes</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this work, is presented an analysis of the Brazilian regulation on human exposure to electromagnetic fields, which provides limits to electric fields, magnetic and electromagnetic fields. The regulations for the electricity sector was in charge of the Agência Nacional de Energia Elétrica-ANEEL, the Brazilian Electricity Regulatory Agency, that made it through the Normative Resolution Nº 398/2010, resulting in a series of obligations for the agents of the electricity sector, especially in the areas of generation, transmission, and distribution. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=adverse%20effects" title="adverse effects">adverse effects</a>, <a href="https://publications.waset.org/abstracts/search?q=electric%20energy" title=" electric energy"> electric energy</a>, <a href="https://publications.waset.org/abstracts/search?q=electric%20and%20magnetic%20fields" title=" electric and magnetic fields"> electric and magnetic fields</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20health" title=" human health"> human health</a>, <a href="https://publications.waset.org/abstracts/search?q=regulation" title=" regulation"> regulation</a> </p> <a href="https://publications.waset.org/abstracts/21066/the-regulation-on-human-exposure-to-electromagnetic-fields-for-brazilian-power-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21066.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">607</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">452</span> Effect of Ultrasound on the Hydrolysis of Soy Oil Catalyzed by 1,3-Specific Lipase Abstract </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jamal%20Abd%20Awadallak">Jamal Abd Awadallak</a>, <a href="https://publications.waset.org/abstracts/search?q=Thiago%20Olinek%20Reinehr"> Thiago Olinek Reinehr</a>, <a href="https://publications.waset.org/abstracts/search?q=Eduardo%20Raizer"> Eduardo Raizer</a>, <a href="https://publications.waset.org/abstracts/search?q=Deise%20Molinari"> Deise Molinari</a>, <a href="https://publications.waset.org/abstracts/search?q=Edson%20Antonio"> Edson Antonio</a>, <a href="https://publications.waset.org/abstracts/search?q=Camila%20da%20Silva%20da%20Silva"> Camila da Silva da Silva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The hydrolysis of soy oil catalyzed by 1,3-specific enzyme (Lecitase Ultra) in a well-stirred bioreactor was studied. Two forms of applications of the ultrasound were evaluated aiming to increase reaction rates, wherein the use of probe ultrasound associated with the use of surfactant to pre-emulsify the substrate showed the best results. Two different reaction periods were found: the first where the ultrasound has great influence on reaction rates, and the second where ultrasound influence is minimal. Studies on the time of pre-emulsification, surfactant concentration and enzyme concentration showed that the initial rate of hydrolysis depends on the interfacial area between the oil phase and the aqueous phase containing the enzyme. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=specific%20enzyme" title="specific enzyme">specific enzyme</a>, <a href="https://publications.waset.org/abstracts/search?q=free%20fatty%20acids" title=" free fatty acids"> free fatty acids</a>, <a href="https://publications.waset.org/abstracts/search?q=Hydrolysis" title=" Hydrolysis"> Hydrolysis</a>, <a href="https://publications.waset.org/abstracts/search?q=lecitase%20ultra" title=" lecitase ultra"> lecitase ultra</a>, <a href="https://publications.waset.org/abstracts/search?q=ultrasound" title=" ultrasound"> ultrasound</a> </p> <a href="https://publications.waset.org/abstracts/20337/effect-of-ultrasound-on-the-hydrolysis-of-soy-oil-catalyzed-by-13-specific-lipase-abstract" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20337.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">578</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">451</span> Energy Efficient Heterogeneous System for Wireless Sensor Networks (WSN)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jos%C3%A9%20Anderson%20Rodrigues%20de%20Souza">José Anderson Rodrigues de Souza</a>, <a href="https://publications.waset.org/abstracts/search?q=Teles%20de%20Sales%20Bezerra"> Teles de Sales Bezerra</a>, <a href="https://publications.waset.org/abstracts/search?q=Saulo%20Aislan%20da%20Silva%20Eleuterio"> Saulo Aislan da Silva Eleuterio</a>, <a href="https://publications.waset.org/abstracts/search?q=Jeronimo%20Silva%20Rocha">Jeronimo Silva Rocha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mobile devices are increasingly occupying sectors of society and one of its most important features is mobility. However, the use of mobile devices is subject to the lifetime of the batteries. Thus, the use of energy batteries has become an important issue in the study of wireless network technologies. In this context, new solutions that enable aggregate energy efficiency not only through energy saving, and principally they are evaluated from a more realistic model of energy discharge, if easy adaptation to existing protocols. This paper presents a study on the energy needed and the lifetime for Wireless Sensor Networks (WSN) using a heterogeneous network and applying the LEACH protocol. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wireless%20sensor%20networks" title="wireless sensor networks">wireless sensor networks</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20efficiency" title=" energy efficiency"> energy efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=heterogeneous" title=" heterogeneous"> heterogeneous</a>, <a href="https://publications.waset.org/abstracts/search?q=LEACH%20protocol" title=" LEACH protocol"> LEACH protocol</a> </p> <a href="https://publications.waset.org/abstracts/19737/energy-efficient-heterogeneous-system-for-wireless-sensor-networks-wsn" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19737.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">580</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">450</span> Life Cycle Assessment of Rare Earth Metals Production: Hotspot Analysis of Didymium Electrolysis Process</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sandra%20H.%20Fukurozaki">Sandra H. Fukurozaki</a>, <a href="https://publications.waset.org/abstracts/search?q=Andre%20L.%20N.%20Silva"> Andre L. N. Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Joao%20B.%20F.%20Neto"> Joao B. F. Neto</a>, <a href="https://publications.waset.org/abstracts/search?q=Fernando%20J.%20G.%20Landgraf"> Fernando J. G. Landgraf</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nowadays, the rare earth (RE) metals play an important role in emerging technologies that are crucial for the decarbonisation of the energy sector. Their unique properties have led to increasing clean energy applications, such as wind turbine generators, and hybrid and electric vehicles. Despite the substantial media coverage that has recently surrounded the mining and processing of rare earth metals, very little quantitative information is available concerning their subsequent life stages, especially related to the metallic production of didymium (Nd-Pr) in fluoride molten salt system. Here we investigate a gate to gate scale life cycle assessment (LCA) of the didymium electrolysis based on three different scenarios of operational conditions. The product system is modeled with SimaPro Analyst 8.0.2 software, and IMPACT 2002+ was applied as an impact assessment tool. In order to develop a life cycle inventories built in software databases, patents, and other published sources together with energy/mass balance were utilized. Analysis indicates that from the 14 midpoint impact categories evaluated, the global warming potential (GWP) is the main contributors to the total environmental burden, ranging from 2.7E2 to 3.2E2 kg CO2eq/kg Nd-Pr. At the damage step assessment, the results suggest that slight changes in materials flows associated with enhancement of current efficiency (between 2.5% and 5%), could lead a reduction up to 12% and 15% of human health and climate change damage, respectively. Additionally, this paper highlights the knowledge gaps and future research efforts needing to understand the environmental impacts of Nd-Pr electrolysis process from the life cycle perspective. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=didymium%20electrolysis" title="didymium electrolysis">didymium electrolysis</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20impacts" title=" environmental impacts"> environmental impacts</a>, <a href="https://publications.waset.org/abstracts/search?q=life%20cycle%20assessment" title=" life cycle assessment"> life cycle assessment</a>, <a href="https://publications.waset.org/abstracts/search?q=rare%20earth%20metals" title=" rare earth metals"> rare earth metals</a> </p> <a href="https://publications.waset.org/abstracts/101265/life-cycle-assessment-of-rare-earth-metals-production-hotspot-analysis-of-didymium-electrolysis-process" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/101265.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">186</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">449</span> Development of a Program for the Evaluation of Thermal Performance Applying the Centre Scientifique et Techniques du Bâtiment Method Case Study: Classroom</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Iara%20Rezende">Iara Rezende</a>, <a href="https://publications.waset.org/abstracts/search?q=Djalma%20Silva"> Djalma Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Alcino%20Costa%20Neto"> Alcino Costa Neto </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Considering the transformations of the contemporary world linked to globalization and climate changes caused by global warming, the environmental and energy issues have been increasingly present in the decisions of the world scenario. Thus, the aim of reducing the impacts caused by human activities there are the energy efficiency measures, which are also applicable in the scope of Civil Engineering. Considering that a large part of the energy demand from buildings is related to the need to adapt the internal environment to the users comfort and productivity, measures capable of reducing this need can minimize the climate changes impacts and also the energy consumption of the building. However, these important measures are currently little used by civil engineers, either because of the interdisciplinarity of the subject, the time required to apply certain methods or the difficult interpretation of the results obtained by computational programs that often have a complex and little applied approach. Thus, it was proposed the development of a Java application with a simpler and applied approach to evaluate the thermal performance of a building in order to obtain results capable of assisting the civil engineers in the decision making related to the users thermal comfort. The program was built in Java programming language and the method used for the evaluation was the Center Scientifique et Technique du Batiment (CSTB) method. The program was used to evaluate the thermal performance of a university classroom. The analysis was carried out from simulations considering the worst climatic situation of the building occupation. Thus, at the end of the process, the favorable result was obtained regarding the classroom comfort zone and the feasibility of using the program, thus achieving the proposed objectives. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=building%20occupation" title="building occupation">building occupation</a>, <a href="https://publications.waset.org/abstracts/search?q=CSTB%20method" title=" CSTB method"> CSTB method</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20efficiency%20measures" title=" energy efficiency measures"> energy efficiency measures</a>, <a href="https://publications.waset.org/abstracts/search?q=Java%20application" title=" Java application"> Java application</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20comfort" title=" thermal comfort"> thermal comfort</a> </p> <a href="https://publications.waset.org/abstracts/103555/development-of-a-program-for-the-evaluation-of-thermal-performance-applying-the-centre-scientifique-et-techniques-du-batiment-method-case-study-classroom" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/103555.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">131</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">448</span> Human Resources Management Practices in Hospitality Companies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dora%20Martins">Dora Martins</a>, <a href="https://publications.waset.org/abstracts/search?q=Susana%20Silva"> Susana Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=C%C3%A2ndida%20Silva"> Cândida Silva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Human Resources Management (HRM) has been recognized by academics and practitioners as an important element in organizations. Therefore, this paper explores the best practices of HRM and seeks to understand the level of participation in the development of these practices by human resources managers in the hospitality industry and compare it with other industries. Thus, the study compared the HRM practices of companies in the hospitality sector with HRM practices of companies in other sectors, and identifies the main differences between their HRM practices. The results show that the most frequent HRM practices in all companies, independently of its sector of activity, are hiring and training. When comparing hospitality sector with other sectors of activity, some differences were noticed, namely in the adoption of the practices of communication and information sharing, and of recruitment and selection. According to these results, the paper discusses the major theoretical and practical implications. Suggestions for future research are also presented. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=exploratory%20study" title="exploratory study">exploratory study</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20resources%20management%20practices" title=" human resources management practices"> human resources management practices</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20resources%20manager" title=" human resources manager"> human resources manager</a>, <a href="https://publications.waset.org/abstracts/search?q=hospitality%20companies" title=" hospitality companies"> hospitality companies</a>, <a href="https://publications.waset.org/abstracts/search?q=Portuguese%20companies" title=" Portuguese companies"> Portuguese companies</a> </p> <a href="https://publications.waset.org/abstracts/68260/human-resources-management-practices-in-hospitality-companies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68260.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">482</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">447</span> Portuguese Influence on Minas Gerais Dessert Culinary During Brazil Colonization Period</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Silvania%20M.%20P.%20Silva">Silvania M. P. Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Ricardo%20A.%20Mazaro"> Ricardo A. Mazaro</a>, <a href="https://publications.waset.org/abstracts/search?q=Gemilde%20M.%20Queiroz"> Gemilde M. Queiroz</a>, <a href="https://publications.waset.org/abstracts/search?q=Josefa%20Barbosa"> Josefa Barbosa</a>, <a href="https://publications.waset.org/abstracts/search?q=Lucas%20S.%20Victorino"> Lucas S. Victorino</a>, <a href="https://publications.waset.org/abstracts/search?q=Grasiela%20J.%20Silva"> Grasiela J. Silva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Minas Gerais sweets have a remarkable personality, perceived on the original usage of fruits, sweets, and cheeses in the Brazilian gastronomic landscape, as a unique representation of Minas Gerais. This memory-related and feeling-oriented food is one of the treasures common to all Brazilians. It is mandatory to mention its Portuguese roots for the use of honey, as well as sugar cane and its countless possibilities. This work will show that this heritage is predominantly Portuguese, born in Portuguese convents and that it crossed the Atlantic. Through a historical survey, visits to mining towns known for their sweet culture and material collected in these places, we present the protagonists of this journey of flavors: the Portuguese cake makers (boleiras), who brought the knowledge, ingredients, and the dream of a better life in the crowded mines of gold and opportunities, helping to form a new Minas Gerais knowledge with their delicacies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sweets%20from%20portugal" title="sweets from portugal">sweets from portugal</a>, <a href="https://publications.waset.org/abstracts/search?q=convent%20sweets" title=" convent sweets"> convent sweets</a>, <a href="https://publications.waset.org/abstracts/search?q=minas%20gerais" title=" minas gerais"> minas gerais</a>, <a href="https://publications.waset.org/abstracts/search?q=brazil" title=" brazil"> brazil</a> </p> <a href="https://publications.waset.org/abstracts/147936/portuguese-influence-on-minas-gerais-dessert-culinary-during-brazil-colonization-period" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/147936.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">169</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">446</span> Vieira Da Silva's Tiles at Universidade Federal Rural Do Rio de Janeiro: A Conservation and Restoration Project</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Anselmo%20Oliveira">Adriana Anselmo Oliveira</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present project showcases a tile work from the Franco-Portuguese artist Maria Helena Vieira da Silva (1908-1992). It is a set of 8 panels composed of figurative and geometric tiles, with extra tiles framing nearby doors and windows in a study room in the (UFRRJ, Universidade Federal Rural do Rio de Janeiro). The aforementioned work was created between 1942 and 1943, during the artist's 6 year exile in the Brazilian city. This one-of-a-kind tileset was designed and made by Vieira da Silva between 1942 and 1943. Over the years, several units were lost, which led to their replacement in the nineties. However, these replacements don't do justice to the original work of art. In 2007, a project was initiated to fully repair and maintain the set. Three panels are removed and restored, but the project is halted. To this day, the three fully restored panels remain in boxes. In 2016 a new restoration project is submitted by the (Faculdade de Belas Artes da Universidade de Lisboa) in collaboration with de (Fundacão Árpád Szenes-Vieira da Silva). There are many varied opinions on restoring and conserving older pieces of art, however, we have the moral duty to safeguard the original materials used by the artist along with the artists original vision and also to care for the future generations of students who will use the space in which the tile-work was inserted. Many tiles have been replaced by white tiles, tiles with a divergent colour pallet and technique, and in a few cases, the incorrect place or way around. These many factors make it increasingly difficult to maintain the artists original vision and destroy and chance of coherence within the artwork itself. The conservative technician cannot make new images to fill the empty spaces or mark the remaining images with their own creative input. with reliable photographic documentation that can provide us with the necessary vision to allow us to proceed with an accurate reconstruction, we have the obligation to proceed and return the piece of art to its true form, as in its current state, it is impossible to maintain its original glory. Using the information we have, we must find a way to differentiate the original tiles from the reconstructions in order to recreate and reclaim the original message from the artist. The objective of this project is to understand the significance of tiles in Vieira da Silva's art as well as the influence they had on the artist's pictorial language since the colour definition on tile work is vastly different from the painting process as the materials change during their merger. Another primary goal is to understand what the previous interventions achieved besides increasing the artworks durability. The main objective is to submit a proposal that can salvage the artist's visual intention and supports it for posteriority. In summary, this proposal goes further than the usual conservative interventions as it intends to recreate the original artistic worth, prioritising the aesthetics and keeping its soul alive. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Vieira%20da%20Silva" title="Vieira da Silva">Vieira da Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=tiles" title=" tiles"> tiles</a>, <a href="https://publications.waset.org/abstracts/search?q=conservation" title=" conservation"> conservation</a>, <a href="https://publications.waset.org/abstracts/search?q=restoration" title=" restoration"> restoration</a> </p> <a href="https://publications.waset.org/abstracts/137916/vieira-da-silvas-tiles-at-universidade-federal-rural-do-rio-de-janeiro-a-conservation-and-restoration-project" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/137916.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">154</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">445</span> Nazi Experiments during World War II: Dismal Period for Bioethics</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Catharina%20O.%20Vianna%20Dias%20da%20Silva">Catharina O. Vianna Dias da Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Amanda%20F.%20Batista"> Amanda F. Batista</a>, <a href="https://publications.waset.org/abstracts/search?q=Ana%20Clara%20C.%20Burgos%20Lessa"> Ana Clara C. Burgos Lessa</a>, <a href="https://publications.waset.org/abstracts/search?q=Carolina%20S.%20Lucchesi%20Ramacciotti"> Carolina S. Lucchesi Ramacciotti</a>, <a href="https://publications.waset.org/abstracts/search?q=Maria%20Clara%20B.%20de%20Andrade"> Maria Clara B. de Andrade</a>, <a href="https://publications.waset.org/abstracts/search?q=Roberto%20de%20B.%20Silva"> Roberto de B. Silva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This article aims to analyze the bioethical aspects related to the historical practices of experiments on humans that occurred in Nazi Germany during the period of World War II (1939-1945). The method was based on the bibliographic review of articles published in databases such as SciELO and Pubmed. In the discussion, historical and humanistic aspects that contributed to the construction of a genocidal culture practiced during this period were analyzed. Additionally, an ethical question arises: should the information acquired during this dark period be used by science? After analysis, it was found that these Nazi experiments went over medical and ethical principles, being a deplorable milestone in history. It was also concluded that, although they generated potentially 'useful' results in the scientific field, they should be discarded as an ethical question of principle, of never daring to validate such a deplorable way of obtaining knowledge. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nazism" title="Nazism">Nazism</a>, <a href="https://publications.waset.org/abstracts/search?q=bioethics" title=" bioethics"> bioethics</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20experimentation" title=" human experimentation"> human experimentation</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20rights" title=" human rights"> human rights</a>, <a href="https://publications.waset.org/abstracts/search?q=genocide" title=" genocide"> genocide</a>, <a href="https://publications.waset.org/abstracts/search?q=torture" title=" torture"> torture</a>, <a href="https://publications.waset.org/abstracts/search?q=medicine" title=" medicine"> medicine</a> </p> <a href="https://publications.waset.org/abstracts/133246/nazi-experiments-during-world-war-ii-dismal-period-for-bioethics" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/133246.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">171</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">444</span> Geographic Information System Applications in Prioritizing Karlahi Forest Reserve Area for Conservation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Samuel%20Hyellamada%20Jerry">Samuel Hyellamada Jerry</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study focused on assessing conservation priorities within the Karlahi Forest Reserve of Fufore Local Government in Adamawa State. The main objective was to identify specific areas within the forest reserve that require immediate conservation attention. The research employed remote sensing and GIS techniques to achieve this goal. By overlaying the IDRIS Silva module results, a spatial distribution map was generated, highlighting the cumulative priority areas within and outside the forest. Among the total vegetated area of 26.38 km² in the Karlahi Forest Reserve, the analysis revealed that 16.16 km² were classified as high-priority conservation zones. Additionally, 4.59 km² and 5.63 km² were identified as medium and low-priority areas, respectively. In light of these findings, it is recommended that conservation efforts incorporate detailed land cover information and regular assessments of species diversity. Furthermore, strict adherence to national and state policies regarding forest reserves and parks is crucial for effective conservation management. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=priority" title="priority">priority</a>, <a href="https://publications.waset.org/abstracts/search?q=Karlahi" title=" Karlahi"> Karlahi</a>, <a href="https://publications.waset.org/abstracts/search?q=forest" title=" forest"> forest</a>, <a href="https://publications.waset.org/abstracts/search?q=reserve" title=" reserve"> reserve</a>, <a href="https://publications.waset.org/abstracts/search?q=IDRISI%20Silva" title=" IDRISI Silva"> IDRISI Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=species%20diversity" title=" species diversity"> species diversity</a> </p> <a href="https://publications.waset.org/abstracts/178549/geographic-information-system-applications-in-prioritizing-karlahi-forest-reserve-area-for-conservation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/178549.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">152</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">443</span> Evaluation of Alpha-Glucosidase Inhibitory Effect of Two Plants from Brazilian Cerrado</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20A.%20P.%20Camaforte">N. A. P. Camaforte</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20M.%20P.%20Vareda"> P. M. P. Vareda</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20L.%20Saldanha"> L. L. Saldanha</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20L.%20Dokkedal"> A. L. Dokkedal</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20M.%20Rezende-Neto"> J. M. Rezende-Neto</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20R.%20Senger"> M. R. Senger</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20P.%20Silva-Jr"> F. P. Silva-Jr</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20R.%20Bosqueiro"> J. R. Bosqueiro</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Diabetes mellitus is a disease characterized by deficiency of insulin secretion and/or action which results in hyperglycemia. Nowadays, acarbose is a medicine used by diabetic people to inhibit alpha-glucosidases leading to the decreasing of post-feeding glycaemia, but with low effectiveness and many side effects. Medicinal plants have been used for the treatment of many diseases including diabetes and their action occurs through the modulation of insulin-depending processes, pancreas regeneration or inhibiting glucose absorption by the intestine. Previous studies in our laboratory showed that the treatment using two crude extracts of plants from Brazilian cerrado was able to decrease fasting blood glucose and improve glucose tolerance in streptozotocin-diabetic mice. Because of this and the importance of the search for new alternatives to decrease the hyperglycemia, we decided to evaluate the inhibitory action of two plants from Brazilian cerrado - B.H. and Myrcia bella. The enzymatic assay was performed in 50 µL of final volume using pancreatic α-amylase and maltase together with theirs commercial substrates. The inhibition potency (IC50) was determined by the incubation of eight different concentrations of both extracts and the enzymes for 5 minutes at 37ºC. After, the substrate was added to start the reaction. Glucosidases assay was evaluated measuring the quantity of p-nitrophenol in 405 nmin 384 wells automatic reader. The in vitro assay with the extracts of B.H. and M. bella showed an IC50 of 28,04µg/mL and 16,93 µg/mL for α-amilase, and 43,01µg/mL and 17 µg/mL for maltase, respectively. M. bella extract showed a higher inhibitory activity for those enzymes than B.H. extract. The crude extracts tested showed a higher inhibition rate to α-amylase, but were less effective against maltase in comparison to acarbose (IC50 36µg/mL and 9 µg/mL, respectively). In conclusion, the crude extract of B.H. and M. bella showed a potent inhibitory effect against α-amylase and showed promising results to the possible development of new medicines to treat diabetes with less or even without side effects. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alfa-glucosidases" title="alfa-glucosidases">alfa-glucosidases</a>, <a href="https://publications.waset.org/abstracts/search?q=diabetes%20mellitus" title=" diabetes mellitus"> diabetes mellitus</a>, <a href="https://publications.waset.org/abstracts/search?q=glycaemia" title=" glycaemia"> glycaemia</a>, <a href="https://publications.waset.org/abstracts/search?q=medicinal%20plants" title=" medicinal plants"> medicinal plants</a> </p> <a href="https://publications.waset.org/abstracts/45971/evaluation-of-alpha-glucosidase-inhibitory-effect-of-two-plants-from-brazilian-cerrado" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45971.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">238</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">442</span> In vitro Bioacessibility of Phenolic Compounds from Fruit Spray Dried and Lyophilized Powder</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Carolina%20Beres">Carolina Beres</a>, <a href="https://publications.waset.org/abstracts/search?q=Laurine%20Da%20Silva"> Laurine Da Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Danielle%20Pereira"> Danielle Pereira</a>, <a href="https://publications.waset.org/abstracts/search?q=Ana%20Ribeiro"> Ana Ribeiro</a>, <a href="https://publications.waset.org/abstracts/search?q=Renata%20Tonon"> Renata Tonon</a>, <a href="https://publications.waset.org/abstracts/search?q=Caroline%20Mellinger-Silva"> Caroline Mellinger-Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Karina%20Dos%20Santos"> Karina Dos Santos</a>, <a href="https://publications.waset.org/abstracts/search?q=Flavia%20Gomes"> Flavia Gomes</a>, <a href="https://publications.waset.org/abstracts/search?q=Lourdes%20Cabral"> Lourdes Cabral</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The health benefits of bioactive compounds such as phenolics are well known. The main source of these compounds are fruits and derivates. This study had the objective to study the bioacessibility of phenolic compounds from grape pomace and juçara dried extracts. For this purpose both characterized extracts were submitted to a simulated human digestion and the total phenolic content, total anthocyanins and antioxidant scavenging capacity was determinate in digestive fractions (oral, gastric, intestinal and colonic). Juçara had a higher anthocianins bioacessibility (17.16%) when compared to grape pomace (2.08%). The opposite result was found for total phenolic compound, where the higher bioacessibility was for grape (400%). The phenolic compound increase indicates a more accessible compound in the human gut. The lyophilized process had a beneficial impact in the final accessibility of the phenolic compounds being a more promising technique. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bioacessibility" title="bioacessibility">bioacessibility</a>, <a href="https://publications.waset.org/abstracts/search?q=phenolic%20compounds" title=" phenolic compounds"> phenolic compounds</a>, <a href="https://publications.waset.org/abstracts/search?q=grape" title=" grape"> grape</a>, <a href="https://publications.waset.org/abstracts/search?q=ju%C3%A7ara" title=" juçara"> juçara</a> </p> <a href="https://publications.waset.org/abstracts/95136/in-vitro-bioacessibility-of-phenolic-compounds-from-fruit-spray-dried-and-lyophilized-powder" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/95136.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">213</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">441</span> Educational Sport and Quality of Life for Children and Teenagers from Brazilian Northeast</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ricardo%20Hugo%20Gonzalez">Ricardo Hugo Gonzalez</a>, <a href="https://publications.waset.org/abstracts/search?q=Amanda%20Figueiredo%20Vasconcelos"> Amanda Figueiredo Vasconcelos</a>, <a href="https://publications.waset.org/abstracts/search?q=Francisco%20Loureiro%20Neto%20Monteiro"> Francisco Loureiro Neto Monteiro</a>, <a href="https://publications.waset.org/abstracts/search?q=Yara%20Luiza%20Freitas%20Silva"> Yara Luiza Freitas Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Ana%20Cristina%20Lindsay"> Ana Cristina Lindsay</a>, <a href="https://publications.waset.org/abstracts/search?q=M%C3%A1rcia%20Maria%20Tavares%20Machado"> Márcia Maria Tavares Machado</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The use of sport as an integration mean is a very important tool regarding the social involvement of children and teenagers in a vulnerability situation. This study aims to report the experiences of a multidisciplinary program that intends to improve the quality of life of children and teenagers in Fortaleza, in the Northeast of Brazil. More than 400 children and teenagers aging 11 and 16 years participated in this study. Poor communities experience many particular difficulties in the urban centers such as violence, poor housing conditions, unemployment, lack in health care and deficient physical education in school. Physical education, physiotherapy, odontology, medicine and pharmacy students are responsible for the activities in the project supervised by a general coordinator and a counselor teacher of each academic unit. There are classes about team sports like basketball and soccer. Lectures about sexual behavior and sexually transmitted diseases are ministered beside the ones about oral health education, basic life support education, first aids, use and care with pharmaceuticals and orientations about healthy nutrition. In order to get the children’s family closer, monthly informative lectures are ministered. There is also the concern about reflecting the actions and producing academic paperwork such as graduation final projects and books. The number of participants has oscillated lately, and one of the causes is the lack of practicing physical activities and sports regularly. However, 250 teenagers have participated regularly for at least two years. These teenagers have shown a healthier lifestyle and a better physical fitness profile. The resources for maintaining the project come from the Pro-Reitoria of Extension, Federal University of Ceara, as well as from the PROEXT/MEC, Federal Government. Actions of this nature need to be done thinking for long periods so the effects results can become effective. Public and private investments are needed due to low socioeconomic families who are most vulnerable and have fewer opportunities to enhance to health prevention services. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=children%20and%20teenagers" title="children and teenagers">children and teenagers</a>, <a href="https://publications.waset.org/abstracts/search?q=health" title=" health"> health</a>, <a href="https://publications.waset.org/abstracts/search?q=multidisciplinary%20program" title=" multidisciplinary program"> multidisciplinary program</a>, <a href="https://publications.waset.org/abstracts/search?q=quality%20of%20life" title=" quality of life"> quality of life</a> </p> <a href="https://publications.waset.org/abstracts/77112/educational-sport-and-quality-of-life-for-children-and-teenagers-from-brazilian-northeast" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77112.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">242</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">440</span> Selenuranes as Cysteine Protease Inhibitors: Theorical Investigation on Model Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gabriela%20D.%20Silva">Gabriela D. Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Rodrigo%20L.%20O.%20R.%20Cunha"> Rodrigo L. O. R. Cunha</a>, <a href="https://publications.waset.org/abstracts/search?q=Mauricio%20D.%20Coutinho-Neto"> Mauricio D. Coutinho-Neto</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the last four decades the biological activities of selenium compounds has received great attention, particularly for hypervalent derivates from selenium (IV) used as enzyme inhibitors. The unregulated activity of cysteine proteases are related to the development of several pathologies, such as neurological disorders, cardiovascular diseases, obesity, rheumatoid arthritis, cancer and parasitic infections. These enzymes are therefore a valuable target for designing new small molecule inhibitors such as selenuranes. Even tough there has been advances in the synthesis and design of new selenuranes based inhibitors, little is known about their mechanism of action. It is a given that inhibition occurs through the reaction between the thiol group of the enzyme and the chalcogen atom. However, several open questions remain about the nature of the mechanism (associative vs. dissociative) and about the nature of the reactive species in solution under physiological conditions. In this work we performed a theoretical investigation on model systems to study the possible routes of substitution reactions. Nucleophiles may be present in biological systems, our interest is centered in the thiol groups from the cysteine proteases and the hydroxyls from the aqueous environment. We therefore expect this study to clarify the possibility of a route reaction in two stages, the first consisting of the substitution of chloro atoms by hydroxyl groups and then replacing these hydroxyl groups per thiol groups in selenuranes. The structures of selenuranes and nucleophiles were optimized using density function theory along the B3LYP functional and a 6-311+G(d) basis set. Solvent was treated using the IEFPCM method as implemented in the Gaussian 09 code. Our results indicate that hydrolysis from water react preferably with selenuranes, and then, they are replaced by the thiol group. It show the energy values of -106,0730423 kcal/mol for dople substituition by hydroxyl group and 96,63078511 kcal/mol for thiol group. The solvatation and pH reduction promotes this route, increasing the energy value for reaction with hydroxil group to -50,75637672 kcal/mol and decreasing the energy value for thiol to 7,917767189 kcal/mol. Alternative ways were analyzed for monosubstitution (considering the competition between Cl, OH and SH groups) and they suggest the same route. Similar results were obtained for aliphatic and aromatic selenuranes studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chalcogenes" title="chalcogenes">chalcogenes</a>, <a href="https://publications.waset.org/abstracts/search?q=computational%20study" title=" computational study"> computational study</a>, <a href="https://publications.waset.org/abstracts/search?q=cysteine%20proteases" title=" cysteine proteases"> cysteine proteases</a>, <a href="https://publications.waset.org/abstracts/search?q=enzyme%20inhibitors" title=" enzyme inhibitors"> enzyme inhibitors</a> </p> <a href="https://publications.waset.org/abstracts/17376/selenuranes-as-cysteine-protease-inhibitors-theorical-investigation-on-model-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17376.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">302</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">439</span> Jatropha curcas L. Oil Selectivity in Froth Flotation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Andr%C3%A9%20C.%20Silva">André C. Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Izabela%20L.%20A.%20Moraes"> Izabela L. A. Moraes</a>, <a href="https://publications.waset.org/abstracts/search?q=Elenice%20M.%20S.%20Silva"> Elenice M. S. Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Carlos%20M.%20Silva%20Filho"> Carlos M. Silva Filho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In Brazil, most soils are acidic and low in essential nutrients required for the growth and development of plants, making fertilizers essential for agriculture. As the biggest producer of soy in the world and a major producer of coffee, sugar cane and citrus fruits, Brazil is a large consumer of phosphate. Brazilian’s phosphate ores are predominantly from igneous rocks showing a complex mineralogy, associated with carbonites and oxides, typically iron, silicon and barium. The adopted industrial concentration circuit for this type of ore is a mix between magnetic separation (both low and high field) to remove the magnetic fraction and a froth flotation circuit composed by a reverse flotation of apatite (barite’s flotation) followed by direct flotation circuit (rougher, cleaner and scavenger circuit). Since the 70’s fatty acids obtained from vegetable oils are widely used as lower-cost collectors in apatite froth flotation. This is a very effective approach to the apatite family of minerals, being that this type of collector is both selective and efficient (high recovery). This paper presents <em>Jatropha curcas</em> <em>L.</em> oil (JCO) as a renewable and sustainable source of fatty acids with high selectivity in froth flotation of apatite. JCO is considerably rich in fatty acids such as linoleic, oleic and palmitic acid. The experimental campaign involved 216 tests using a modified Hallimond tube and two different minerals (apatite and quartz). In order to be used as a collector, the oil was saponified. The results found were compared with the synthetic collector, Fotigam 5806 produced by Clariant, which is composed mainly by soy oil. JCO showed the highest selectivity for apatite flotation with cold saponification at pH 8 and concentration of 2.5 mg/L. In this case, the mineral recovery was around 95%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=froth%20flotation" title="froth flotation">froth flotation</a>, <a href="https://publications.waset.org/abstracts/search?q=jatropha%20curcas" title=" jatropha curcas"> jatropha curcas</a>, <a href="https://publications.waset.org/abstracts/search?q=microflotation" title=" microflotation"> microflotation</a>, <a href="https://publications.waset.org/abstracts/search?q=selectivity" title=" selectivity"> selectivity</a> </p> <a href="https://publications.waset.org/abstracts/50900/jatropha-curcas-l-oil-selectivity-in-froth-flotation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50900.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">431</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">438</span> Attitudes of Nurses towards End-of-Life Care for Themselves</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20N.%20S.%20Silva">H. N. S. Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20N.%20Silva"> S. N. Silva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: 88.3% of physicians decided to choose a ‘no-code’ or a DNR order if hospitalized and would choose to die less aggressively at home. However, their wishes were mostly over ridden. Objective: To assess the attitudes of nurses towards the end-of-the-life care they would like to receive for themselves and their attitudes towards terminal illnesses. Methods: A mixed method approach was used. A closed and open-ended questionnaire was administered to 73 participants and 5 registered nurses, who have more than 10 years of experience, working in hospitals both in Sri Lanka and abroad, were interviewed. Results: 94.1% of the participants stated that they would like to die at home, spending their last hours at home surrounded by their loved ones and engaging in religious activities but 57.7% of unmarried nurse said they would agree on euthanasia if they had a terminal disease, and also 66.2% of them stated they would agree in DNR order if they happen to be admitted to the ICU, but 82.5% wanted to diagnose if they had a terminal illness or cancer but did not agree on euthanasia. Qualitative analysis confirmed the findings and revealed that despite having adequate confidence about the hospital care, nurses would choose to die at home, surrounded by their loved once and engaging in religious activities. Euthanasia was believed to be inappropriate as it is religiously incorrect and as death is a natural process. Conclusion: The perception of death among nurses depends on their religious belief. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=death" title="death">death</a>, <a href="https://publications.waset.org/abstracts/search?q=do%20not%20resuscitate" title=" do not resuscitate"> do not resuscitate</a>, <a href="https://publications.waset.org/abstracts/search?q=euthanasia" title=" euthanasia"> euthanasia</a>, <a href="https://publications.waset.org/abstracts/search?q=nurses" title=" nurses"> nurses</a> </p> <a href="https://publications.waset.org/abstracts/43888/attitudes-of-nurses-towards-end-of-life-care-for-themselves" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43888.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">514</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">437</span> Development of an Integrated Reaction Design for the Enzymatic Production of Lactulose</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Natan%20C.%20G.%20Silva">Natan C. G. Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Carlos%20A.%20C.%20Girao%20Neto"> Carlos A. C. Girao Neto</a>, <a href="https://publications.waset.org/abstracts/search?q=Marcele%20M.%20S.%20Vasconcelos"> Marcele M. S. Vasconcelos</a>, <a href="https://publications.waset.org/abstracts/search?q=Luciana%20R.%20B.%20Goncalves"> Luciana R. B. Goncalves</a>, <a href="https://publications.waset.org/abstracts/search?q=Maria%20Valderez%20P.%20Rocha"> Maria Valderez P. Rocha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Galactooligosaccharides (GOS) are sugars with prebiotic function that can be synthesized chemically or enzymatically, and this last one can be promoted by the action of β-galactosidases. In addition to favoring the transgalactosylation reaction to form GOS, these enzymes can also catalyze the hydrolysis of lactose. A highly studied type of GOS is lactulose because it presents therapeutic properties and is a health promoter. Among the different raw materials that can be used to produce lactulose, whey stands out as the main by-product of cheese manufacturing, and its discarded is harmful to the environment due to the residual lactose present. Therefore, its use is a promising alternative to solve this environmental problem. Thus, lactose from whey is hydrolyzed into glucose and galactose by β-galactosidases. However, in order to favor the transgalactosylation reaction, the medium must contain fructose, due this sugar reacts with galactose to produce lactulose. Then, the glucose-isomerase enzyme can be used for this purpose, since it promotes the isomerization of glucose into fructose. In this scenario, the aim of the present work was first to develop β-galactosidase biocatalysts of Kluyveromyces lactis and to apply it in the integrated reactions of hydrolysis, isomerization (with the glucose-isomerase from Streptomyces murinus) and transgalactosylation reaction, using whey as a substrate. The immobilization of β-galactosidase in chitosan previously functionalized with 0.8% glutaraldehyde was evaluated using different enzymatic loads (2, 5, 7, 10, and 12 mg/g). Subsequently, the hydrolysis and transgalactosylation reactions were studied and conducted at 50°C, 120 RPM for 20 minutes. In parallel, the isomerization of glucose into fructose was evaluated under conditions of 70°C, 750 RPM for 90 min. After, the integration of the three processes for the production of lactulose was investigated. Among the evaluated loads, 7 mg/g was chosen because the best activity of the derivative (44.3 U/g) was obtained, being this parameter determinant for the reaction stages. The other parameters of immobilization yield (87.58%) and recovered activity (46.47%) were also satisfactory compared to the other conditions. Regarding the integrated process, 94.96% of lactose was converted, achieving 37.56 g/L and 37.97 g/L of glucose and galactose, respectively. In the isomerization step, conversion of 38.40% of glucose was observed, obtaining a concentration of 12.47 g/L fructose. In the transgalactosylation reaction was produced 13.15 g/L lactulose after 5 min. However, in the integrated process, there was no formation of lactulose, but it was produced other GOS at the same time. The high galactose concentration in the medium probably favored the reaction of synthesis of these other GOS. Therefore, the integrated process proved feasible for possible production of prebiotics. In addition, this process can be economically viable due to the use of an industrial residue as a substrate, but it is necessary a more detailed investigation of the transgalactosilation reaction. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=beta-galactosidase" title="beta-galactosidase">beta-galactosidase</a>, <a href="https://publications.waset.org/abstracts/search?q=glucose-isomerase" title=" glucose-isomerase"> glucose-isomerase</a>, <a href="https://publications.waset.org/abstracts/search?q=galactooligosaccharides" title=" galactooligosaccharides"> galactooligosaccharides</a>, <a href="https://publications.waset.org/abstracts/search?q=lactulose" title=" lactulose"> lactulose</a>, <a href="https://publications.waset.org/abstracts/search?q=whey" title=" whey"> whey</a> </p> <a href="https://publications.waset.org/abstracts/109932/development-of-an-integrated-reaction-design-for-the-enzymatic-production-of-lactulose" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/109932.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">140</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">436</span> Evaluate the Kinetic Parameters and Characterize for Waste Prosopis juliflora Pods</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jean%20C.%20G.%20Silva">Jean C. G. Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Kaline%20N.%20Ferreira"> Kaline N. Ferreira</a>, <a href="https://publications.waset.org/abstracts/search?q=Rennio%20F.%20Sena"> Rennio F. Sena</a>, <a href="https://publications.waset.org/abstracts/search?q=Flavio%20L.%20H.%20Silva"> Flavio L. H. Silva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Prosopis juliflora (called algaroba in Northeastern Region of Brazil) is a species of medium to large size that can reach 18 meters high, being typical of arid and semi-arid regions by to requirement less water to survive; this is a fundamental attribute from its adaptation. It's considered of multiple uses, because the trunk, the fruit, and the algaroba pods are utilized for several purposes, among them, the production of wood from lumber mill, charcoal, alcohol, animal and human consumption, being hence, a culture of economic and social value. The use of waste Prosopis juliflora can be carried out for like pyrolysis and gasification processes, in order to energy production in those regions where it is grown. Thus this study aims to characterize the residue of the algaroba pods and evaluate the kinetic parameters, activation energy (Ea) and pre-exponential factor (k0), the devolatilization process through the data obtained from TG/DTG curves with different levels of heating rates. At work was used the heating rates of 5 K.min-1, 10 K.min-1, 15 K.min-1, 20 K.min-1 and 30 K.min-1, in inert nitrogen atmosphere (99.997%) under a flow of 40 ml.min-1. The kinetic parameters were obtained using the methods of Friedman and Ozawa-Flynn-Wall. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=activation%20energy" title="activation energy">activation energy</a>, <a href="https://publications.waset.org/abstracts/search?q=devolatilization" title=" devolatilization"> devolatilization</a>, <a href="https://publications.waset.org/abstracts/search?q=kinetic%20parameters" title=" kinetic parameters"> kinetic parameters</a>, <a href="https://publications.waset.org/abstracts/search?q=waste" title=" waste"> waste</a> </p> <a href="https://publications.waset.org/abstracts/40748/evaluate-the-kinetic-parameters-and-characterize-for-waste-prosopis-juliflora-pods" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/40748.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">388</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">435</span> A Genetic Algorithm Approach to Solve a Weaving Job Scheduling Problem, Aiming Tardiness Minimization</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Carolina%20Silva">Carolina Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Jo%C3%A3o%20Nuno%20Oliveira"> João Nuno Oliveira</a>, <a href="https://publications.waset.org/abstracts/search?q=Rui%20Sousa"> Rui Sousa</a>, <a href="https://publications.waset.org/abstracts/search?q=Jo%C3%A3o%20Paulo%20Silva"> João Paulo Silva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study uses genetic algorithms to solve a job scheduling problem in a weaving factory. The underline problem regards an NP-Hard problem concerning unrelated parallel machines, with sequence-dependent setup times. This research uses real data regarding a weaving industry located in the North of Portugal, with a capacity of 96 looms and a production, on average, of 440000 meters of fabric per month. Besides, this study includes a high level of complexity once most of the real production constraints are applied, and several real data instances are tested. Topics such as data analyses and algorithm performance are addressed and tested, to offer a solution that can generate reliable and due date results. All the approaches will be tested in the operational environment, and the KPIs monitored, to understand the solution's impact on the production, with a particular focus on the total number of weeks of late deliveries to clients. Thus, the main goal of this research is to develop a solution that allows for the production of automatically optimized production plans, aiming to the tardiness minimizing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=genetic%20algorithms" title="genetic algorithms">genetic algorithms</a>, <a href="https://publications.waset.org/abstracts/search?q=textile%20industry" title=" textile industry"> textile industry</a>, <a href="https://publications.waset.org/abstracts/search?q=job%20scheduling" title=" job scheduling"> job scheduling</a>, <a href="https://publications.waset.org/abstracts/search?q=optimization" title=" optimization"> optimization</a> </p> <a href="https://publications.waset.org/abstracts/153173/a-genetic-algorithm-approach-to-solve-a-weaving-job-scheduling-problem-aiming-tardiness-minimization" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/153173.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">157</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">434</span> Advantages of Vibration in the GMAW Process for Improving the Quality and Mechanical Properties</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=C.%20A.%20C.%20Castro">C. A. C. Castro</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20C.%20Urashima"> D. C. Urashima</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20P.%20Silva"> E. P. Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20M.%20L.%20Silva"> P. M. L. Silva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Since 1920, the industry has almost completely changed the rivets production techniques for the manufacture of permanent welding join production of structures and manufacture of other products. The welding arc is the process more widely used in industries. This is accomplished by the heat of an electric arc which melts the base metal while the molten metal droplets are transferred through the arc to the welding pool, protected from the atmosphere by a gas curtain. The GMAW (Gas metal arc welding) process is influenced by variables such as: Current, polarity, welding speed, electrode, extension, position, moving direction; type of joint, welder's ability, among others. It is remarkable that the knowledge and control of these variables are essential for obtaining satisfactory quality welds, knowing that are interconnected so that changes in one of them requiring changes in one or more of the other to produce the desired results. The optimum values are affected by the type of base metal, the electrode composition, the welding position and the quality requirements. Thus, this paper proposes a new methodology, adding the variable vibration through a mechanism developed for GMAW welding, in order to improve the mechanical and metallurgical properties which does not affect the ability of the welder and enables repeatability of the welds made. For confirmation metallographic analysis and mechanical tests were made. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=vibration" title="vibration">vibration</a>, <a href="https://publications.waset.org/abstracts/search?q=joining" title=" joining"> joining</a>, <a href="https://publications.waset.org/abstracts/search?q=weldability" title=" weldability"> weldability</a>, <a href="https://publications.waset.org/abstracts/search?q=GMAW" title=" GMAW"> GMAW</a> </p> <a href="https://publications.waset.org/abstracts/29500/advantages-of-vibration-in-the-gmaw-process-for-improving-the-quality-and-mechanical-properties" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29500.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">424</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">433</span> Induced Bone Tissue Temperature in Drilling Procedures: A Comparative Laboratory Study with and without Lubrication</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=L.%20Roseiro">L. Roseiro</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Veiga"> C. Veiga</a>, <a href="https://publications.waset.org/abstracts/search?q=V.%20Maranha"> V. Maranha</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Neto"> A. Neto</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Laraqi"> N. Laraqi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Ba%C3%AFri"> A. Baïri</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Alilat"> N. Alilat</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In orthopedic surgery there are various situations in which the surgeon needs to implement methods of cutting and drilling the bone. With this type of procedure the generated friction leads to a localized increase in temperature, which may lead to the bone necrosis. Recognizing the importance of studying this phenomenon, an experimental evaluation of the temperatures developed during the procedure of drilling bone has been done. Additionally the influence of the use of the procedure with / without additional lubrication during drilling of bone has also been done. The obtained results are presented and discussed and suggests an advantage in using additional lubrication as a way to minimize the appearance of bone tissue necrosis during bone drilling procedures. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bone%20necrosis" title="bone necrosis">bone necrosis</a>, <a href="https://publications.waset.org/abstracts/search?q=bone%20drilling" title=" bone drilling"> bone drilling</a>, <a href="https://publications.waset.org/abstracts/search?q=thermography" title=" thermography"> thermography</a>, <a href="https://publications.waset.org/abstracts/search?q=surgery" title=" surgery"> surgery</a> </p> <a href="https://publications.waset.org/abstracts/16605/induced-bone-tissue-temperature-in-drilling-procedures-a-comparative-laboratory-study-with-and-without-lubrication" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16605.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">597</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">432</span> Sportomics Analysis of Metabolic Responses in Olympic Sprint Canoeists</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Magno-Fran%C3%A7a">A. Magno-França</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20M.%20Magalh%C3%A3es-Neto"> A. M. Magalhães-Neto</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Bachini"> F. Bachini</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Cataldi"> E. Cataldi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Bassini"> A. Bassini</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20C.%20Cameron"> L. C. Cameron</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Sprint canoeing (SC) is part of the Olympic Games since 1936. Athletes compete in solo or double races of 200m and 1000m (40 sec and 240 sec, respectively). Due to its high intensity and duration, SC is extremely useful to study the blood kinetics of some metabolites in high energetic demand. Sportomics is a field of study combining “-omics” sciences with classical biochemical analyses in order to understand sports induced systemic changes. Here, we compare Sportomics findings during SC training sessions to describe metabolic responses of five top-level canoeists. Five Olympic world-class male athletes were evaluated during two days of training. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biochemistry%20of%20exercise" title="biochemistry of exercise">biochemistry of exercise</a>, <a href="https://publications.waset.org/abstracts/search?q=metabolomics" title=" metabolomics"> metabolomics</a>, <a href="https://publications.waset.org/abstracts/search?q=injury%20markers" title=" injury markers"> injury markers</a>, <a href="https://publications.waset.org/abstracts/search?q=sportomics" title=" sportomics"> sportomics</a> </p> <a href="https://publications.waset.org/abstracts/28851/sportomics-analysis-of-metabolic-responses-in-olympic-sprint-canoeists" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28851.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">516</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">431</span> Limestone Briquette Production and Characterization</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Andr%C3%A9%20C.%20Silva">André C. Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Mariana%20R.%20Barros"> Mariana R. Barros</a>, <a href="https://publications.waset.org/abstracts/search?q=Elenice%20M.%20S.%20Silva"> Elenice M. S. Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Douglas.%20Y.%20Marinho"> Douglas. Y. Marinho</a>, <a href="https://publications.waset.org/abstracts/search?q=Diego%20F.%20Lopes"> Diego F. Lopes</a>, <a href="https://publications.waset.org/abstracts/search?q=D%C3%A9bora%20N.%20Sousa"> Débora N. Sousa</a>, <a href="https://publications.waset.org/abstracts/search?q=Raphael%20S.%20Tom%C3%A1z"> Raphael S. Tomáz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Modern agriculture requires productivity, efficiency and quality. Therefore, there is need for agricultural limestone implementation that provides adequate amounts of calcium and magnesium carbonates in order to correct soil acidity. During the limestone process, fine particles (with average size under 400#) are generated. These particles do not have economic value in agricultural and metallurgical sectors due their size. When limestone is used for agriculture purposes, these fine particles can be easily transported by wind generated air pollution. Therefore, briquetting, a mineral processing technique, was used to mitigate this problem resulting in an agglomerated product suitable for agriculture use. Briquetting uses compressive pressure to agglomerate fine particles. It can be aided by agglutination agents, allowing adjustments in shape, size and mechanical parameters of the mass. Briquettes can generate extra profits for mineral industry, presenting as a distinct product for agriculture, and can reduce the environmental liabilities of the fine particles storage or disposition. The produced limestone briquettes were subjected to shatter and water action resistance tests. The results show that after six minutes completely submerged in water, the briquettes where fully diluted, a highly favorable result considering its use for soil acidity correction. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=agglomeration" title="agglomeration">agglomeration</a>, <a href="https://publications.waset.org/abstracts/search?q=briquetting" title=" briquetting"> briquetting</a>, <a href="https://publications.waset.org/abstracts/search?q=limestone" title=" limestone"> limestone</a>, <a href="https://publications.waset.org/abstracts/search?q=soil%20acidity%20correction" title=" soil acidity correction"> soil acidity correction</a> </p> <a href="https://publications.waset.org/abstracts/50898/limestone-briquette-production-and-characterization" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50898.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">390</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Ruy%20D.%20A.%20da%20Silva%20Neto&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Ruy%20D.%20A.%20da%20Silva%20Neto&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Ruy%20D.%20A.%20da%20Silva%20Neto&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Ruy%20D.%20A.%20da%20Silva%20Neto&page=5">5</a></li> <li class="page-item"><a class="page-link" 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