CINXE.COM

<!DOCTYPE html> <html lang="en" dir="ltr"> <head>  <script async src="https://www.googletagmanager.com/gtag/js?id=G-P63WKM1TM1"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-P63WKM1TM1'); </script>  <script type="text/javascript" > (function(m,e,t,r,i,k,a){m[i]=m[i]||function(){(m[i].a=m[i].a||[]).push(arguments)}; m[i].l=1*new Date(); for (var j = 0; j < document.scripts.length; j++) {if (document.scripts[j].src === r) { return; }} k=e.createElement(t),a=e.getElementsByTagName(t)[0],k.async=1,k.src=r,a.parentNode.insertBefore(k,a)}) (window, document, "script", "https://mc.yandex.ru/metrika/tag.js", "ym"); ym(55165297, "init", { clickmap:false, trackLinks:true, accurateTrackBounce:true, webvisor:false }); </script> <noscript><div><img src="https://mc.yandex.ru/watch/55165297" style="position:absolute; left:-9999px;" alt="" /></div></noscript>    <title>Search results for: Luiz F. Martins</title> <meta name="description" content="Search results for: Luiz F. Martins"> <meta name="keywords" content="Luiz F. Martins"> <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="Luiz F. Martins" name="q" aria-label="Search"> <button class="btn btn-light my-2 my-sm-0" type="submit"><i class="fas fa-search"></i></button> </form> </div> <div class="collapse navbar-collapse mt-1" id="navbarMenu"> <ul class="navbar-nav ml-auto align-items-center" id="mainNavMenu"> <li class="nav-item"> <a class="nav-link" href="https://waset.org/conferences" title="Conferences in 2024/2025/2026">Conferences</a> </li> <li class="nav-item"> <a class="nav-link" href="https://waset.org/disciplines" title="Disciplines">Disciplines</a> </li> <li class="nav-item"> <a class="nav-link" href="https://waset.org/committees" rel="nofollow">Committees</a> </li> <li class="nav-item dropdown"> <a class="nav-link dropdown-toggle" href="#" id="navbarDropdownPublications" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> Publications </a> <div class="dropdown-menu" aria-labelledby="navbarDropdownPublications"> <a class="dropdown-item" href="https://publications.waset.org/abstracts">Abstracts</a> <a class="dropdown-item" href="https://publications.waset.org">Periodicals</a> <a class="dropdown-item" href="https://publications.waset.org/archive">Archive</a> </div> </li> <li class="nav-item"> <a class="nav-link" href="https://waset.org/page/support" title="Support">Support</a> </li> </ul> </div> </div> </nav> </div> </header> <main> <div class="container mt-4"> <div class="row"> <div class="col-md-9 mx-auto"> <form method="get" action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Luiz F. Martins"> <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> 167</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Luiz F. Martins</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">167</span> Low-Cost VoIP University Solution</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Carlos%20Henrique%20Rodrigues%20de%20Oliveira">Carlos Henrique Rodrigues de Oliveira</a>, <a href="https://publications.waset.org/abstracts/search?q=Luis%20Carlos%20Costa%20Fonseca"> Luis Carlos Costa Fonseca</a>, <a href="https://publications.waset.org/abstracts/search?q=Caio%20de%20Castro%20Torres"> Caio de Castro Torres</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Gusm%C3%A3o%20Pereira"> Daniel Gusmão Pereira</a>, <a href="https://publications.waset.org/abstracts/search?q=Luiz%20Ricardo%20Souza%20Ripardo"> Luiz Ricardo Souza Ripardo</a>, <a href="https://publications.waset.org/abstracts/search?q=Magno%20Castro%20Moraes"> Magno Castro Moraes</a>, <a href="https://publications.waset.org/abstracts/search?q=Ana%20Paula%20Ferreira%20Costa"> Ana Paula Ferreira Costa</a>, <a href="https://publications.waset.org/abstracts/search?q=Luiz%20Carlos%20Chaves%20Lima%20Junior"> Luiz Carlos Chaves Lima Junior</a>, <a href="https://publications.waset.org/abstracts/search?q=Aurelianny%20Almeida%20da%20Cunha"> Aurelianny Almeida da Cunha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> VoIP University is a communication solution based on the IP protocol. This solution was proposed to modernize and save on communication, which required the development of Android, iOS, and Windows applications and a web service server. This solution allows integration with management system databases to create and manage a list of user extensions. VoIP UEMA was the first deployed project of VoIP University. MOS subjective voice quality test was done, and the results indicated good quality. A financial analysis revealed that annual spending on telephone bills decreased by more than 97 %. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=VoIP%20eTec" title="VoIP eTec">VoIP eTec</a>, <a href="https://publications.waset.org/abstracts/search?q=VoIP%20UEMA" title=" VoIP UEMA"> VoIP UEMA</a>, <a href="https://publications.waset.org/abstracts/search?q=VoIP%20University" title=" VoIP University"> VoIP University</a>, <a href="https://publications.waset.org/abstracts/search?q=VoIP%20Valen" title=" VoIP Valen"> VoIP Valen</a> </p> <a href="https://publications.waset.org/abstracts/182442/low-cost-voip-university-solution" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/182442.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">61</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">166</span> Whole Body Cooling Hypothermia Treatment Modelling Using a Finite Element Thermoregulation Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ana%20Beatriz%20C.%20G.%20Silva">Ana Beatriz C. G. Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Luiz%20Carlos%20Wrobel"> Luiz Carlos Wrobel</a>, <a href="https://publications.waset.org/abstracts/search?q=Fernando%20Luiz%20B.%20Ribeiro"> Fernando Luiz B. Ribeiro</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a thermoregulation model using the finite element method to perform numerical analyses of brain cooling procedures as a contribution to the investigation on the use of therapeutic hypothermia after ischemia in adults. The use of computational methods can aid clinicians to observe body temperature using different cooling methods without the need of invasive techniques, and can thus be a valuable tool to assist clinical trials simulating different cooling options that can be used for treatment. In this work, we developed a FEM package applied to the solution of the continuum bioheat Pennes equation. Blood temperature changes were considered using a blood pool approach and a lumped analysis for intravascular catheter method of blood cooling. Some analyses are performed using a three-dimensional mesh based on a complex geometry obtained from computed tomography medical images, considering a cooling blanket and a intravascular catheter. A comparison is made between the results obtained and the effects of each case in brain temperature reduction in a required time, maintenance of body temperature at moderate hypothermia levels and gradual rewarming. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=brain%20cooling" title="brain cooling">brain cooling</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20method" title=" finite element method"> finite element method</a>, <a href="https://publications.waset.org/abstracts/search?q=hypothermia%20treatment" title=" hypothermia treatment"> hypothermia treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=thermoregulation" title=" thermoregulation"> thermoregulation</a> </p> <a href="https://publications.waset.org/abstracts/65757/whole-body-cooling-hypothermia-treatment-modelling-using-a-finite-element-thermoregulation-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65757.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">311</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">165</span> The Role of Social Civil Competencies in Organizational Performance</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=I.%20Martins">I. Martins</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Martins"> A. Martins</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The European Union supports social and civil competencies as being a core element to develop sustainability of organizations, people and regions. These competencies are fundamental for the well-being of the community because they include interpersonal, intrapersonal as well as their civil, active and democratic participation in organizations. The combination of these competencies reveals the organizational socio-emotional maturity and allows relevant levels of performance. It also allows the development of various capitals, namely, human, structural, relational and social, with direct influence on performance. But along this path, the emotional aspect has not been valued as a capital, given that contemporary society is based on knowledge capital and is flooded with information viewed as a capital. The present study, based on the importance of these socio-emotional capitals, aims to show that the competencies of cooperation, interpersonal understanding, empathy, kindness, ability to listen, and tolerance, to mention a few, are strategic in consolidating knowledge within organizations. This implies that the humanizing processes, both inside and outside the organizations, are revitalized. The question is how to go about doing this and its implementation; as well as, where to begin and which guidelines to take on. These are the foci that guide the present study, bearing in mind the directions of the knowledge economy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=civil%20competencies" title="civil competencies">civil competencies</a>, <a href="https://publications.waset.org/abstracts/search?q=humanizing" title=" humanizing"> humanizing</a>, <a href="https://publications.waset.org/abstracts/search?q=performance" title=" performance"> performance</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20competencies" title=" social competencies "> social competencies </a> </p> <a href="https://publications.waset.org/abstracts/104987/the-role-of-social-civil-competencies-in-organizational-performance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/104987.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">145</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">164</span> The Technology of Magnetic Subs for Downhole Inorganic Scale Mitigation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Plinio%20Martins%20Dias%20Da%20Silva">Plinio Martins Dias Da Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Bruno%20Barbosa%20Castro"> Bruno Barbosa Castro</a>, <a href="https://publications.waset.org/abstracts/search?q=Andre%20Leibsohn%20Martins"> Andre Leibsohn Martins</a>, <a href="https://publications.waset.org/abstracts/search?q=Rosane%20Alves%20Fontes"> Rosane Alves Fontes</a>, <a href="https://publications.waset.org/abstracts/search?q=Joao%20Vicente%20Martins%20de%20Magalhaes"> Joao Vicente Martins de Magalhaes</a>, <a href="https://publications.waset.org/abstracts/search?q=Fernando%20Salatiel%20de%20Oliveira"> Fernando Salatiel de Oliveira</a>, <a href="https://publications.waset.org/abstracts/search?q=Helga%20Elisabeth%20Pinheiro%20Schluter"> Helga Elisabeth Pinheiro Schluter</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Zacharias%20Ignacio%20Pereira"> Alexandre Zacharias Ignacio Pereira</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Inorganic scale is a relevant cause for production losses in offshore operations. In the development of pre-salt fields calcium carbonate crystallization, especially when the flow is submitted to abrupt depressurization, often cause problems in reservoir selectivity and production string obstruction. The conventional strategy for this kind of problem is to continuously inject chemicals to prevent precipitation. The low reliability of injection devices, which frequently fail, and the possibility of adopting downhole completion configurations which do not allow injection at the lower zones stimulated the industry to search for alternative mitigation strategies. The use of magnetic fields to help in minimizing the adhesion of calcium carbonate crystals to downhole surfaces. The proposed mechanisms include the effect of the magnetic field in generating fewer adhesive polymorphs (vaterite) in relation to the more stable ones (calcite). A discussion on this topic has been widely addressed in the literature. The goal of the present article is to describe the construction of real scale prototypes of a magnetic sub, a device to be attached to the production string to generate the necessary magnetic field to achieve the scale mitigation requirements. The strategy for magnetic and mechanical design is described. In addition, a protocol to establish the strategy for field installation in a field development project is detailed. The focus is to equip a given well with several subs and compare the production records with a correlation well with no subs installed. Finally, an update of the status of field installations is presented, with the proposed evaluation methodology customized for each field. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnetic%20subs" title="magnetic subs">magnetic subs</a>, <a href="https://publications.waset.org/abstracts/search?q=downhole" title=" downhole"> downhole</a>, <a href="https://publications.waset.org/abstracts/search?q=scale" title=" scale"> scale</a>, <a href="https://publications.waset.org/abstracts/search?q=inorganic" title=" inorganic"> inorganic</a>, <a href="https://publications.waset.org/abstracts/search?q=mitigation" title=" mitigation"> mitigation</a> </p> <a href="https://publications.waset.org/abstracts/195640/the-technology-of-magnetic-subs-for-downhole-inorganic-scale-mitigation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/195640.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">2</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">163</span> Species Selection for Phytoremediation of Barium Polluted Flooded Soils</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fabio%20R.%20Pires">Fabio R. Pires</a>, <a href="https://publications.waset.org/abstracts/search?q=Paulo%20R.%20C.%20C.%20Ribeiro"> Paulo R. C. C. Ribeiro</a>, <a href="https://publications.waset.org/abstracts/search?q=Douglas%20G.%20Viana"> Douglas G. Viana</a>, <a href="https://publications.waset.org/abstracts/search?q=Robson%20Bonomo"> Robson Bonomo</a>, <a href="https://publications.waset.org/abstracts/search?q=Fernando%20B.%20Egreja%20Filho"> Fernando B. Egreja Filho</a>, <a href="https://publications.waset.org/abstracts/search?q=Alberto%20Cargnelutti%20Filho"> Alberto Cargnelutti Filho</a>, <a href="https://publications.waset.org/abstracts/search?q=Luiz%20%20F.%20Martins"> Luiz F. Martins</a>, <a href="https://publications.waset.org/abstracts/search?q=Leila%20B.%20S.%20Cruz"> Leila B. S. Cruz</a>, <a href="https://publications.waset.org/abstracts/search?q=Mauro%20C.%20P.%20Nascimento"> Mauro C. P. Nascimento</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The use of barite (BaSO₄) as a weighting agent in drilling fluids for oil and gas activities makes barium a potential contaminant in the case of spills onto flooded soils, where barium sulfate solubility is increased due to low redox conditions. In order to select plants able to remove barium in such scenarios, seven plant species were evaluated on barium phytoextraction capacity: Brachiaria arrecta; Cyperus cf. papyrus; Eleocharis acutangula; Eleocharis interstincta; Nephrolepsis cf. rivularis; Paspalum conspersum and Typha domingensis. Plants were grown in pots with 13 kg of soil each, and exposed to six barium concentrations (established with BaCl₂): 0; 2.5; 5.0; 10.0; 30.0; 65.0 mg kg-1. To simulate flooding conditions, every pot was manteined with a thin irrigation water depth over soil surface (~1.0 cm). Treatments were carried out in triplicate, and pots were distributed randomly inside the greenhouse. Biometric and chemical analyses were performed throughout the experiment, including Ba²⁺ accumulation in shoots and roots. The highest amount of barium was observed in T. domingensis biomass, followed by C. cf. papyrus. However, the latter exported most of the barium to shoot, especially in higher BaCl₂ doses, while the former accumulated barium preferentially in roots. Thus, barium removal with C. cf. papyrus could be achieved by simply harvesting aerial biomass. The amount of barium in C. cf. papyrus was a consequence of high biomass production rather than barium concentration in plant tissues, whereas T. domingensis showed high barium concentration in plant tissues and high biomass production as well. These results make T. domingensis and C. cf. papyrus potential candidates to be applied in phytoremediation schemes to remove barium from flooded soils. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=barium%20sulfate" title="barium sulfate">barium sulfate</a>, <a href="https://publications.waset.org/abstracts/search?q=cyperus" title=" cyperus"> cyperus</a>, <a href="https://publications.waset.org/abstracts/search?q=drilling%20fluids" title=" drilling fluids"> drilling fluids</a>, <a href="https://publications.waset.org/abstracts/search?q=phytoextraction" title=" phytoextraction"> phytoextraction</a>, <a href="https://publications.waset.org/abstracts/search?q=Typha" title=" Typha"> Typha</a> </p> <a href="https://publications.waset.org/abstracts/62305/species-selection-for-phytoremediation-of-barium-polluted-flooded-soils" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62305.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">271</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">162</span> Spaces in the City to Practice Physical Activities: Case Study of Conchal, São Paulo, Brazil</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ana%20Maria%20Girotti%20Sperandio">Ana Maria Girotti Sperandio</a>, <a href="https://publications.waset.org/abstracts/search?q=Jussara%20Concei%C3%A7%C3%A3o%20Guarnieri"> Jussara Conceição Guarnieri</a>, <a href="https://publications.waset.org/abstracts/search?q=Lauro%20Luiz%20Francisco%20Filho"> Lauro Luiz Francisco Filho</a>, <a href="https://publications.waset.org/abstracts/search?q=Ana%20Claudia%20Martins%20Alves"> Ana Claudia Martins Alves</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Aparecida%20Carneiro%20Rosa"> Adriana Aparecida Carneiro Rosa </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The urban planning of a city should contemplate the construction of healthy spaces to provide quality of life for people. In a Brazilian municipality located 180 km from the capital of São Paulo with around 27,000 thousand inhabitants, the federal government made possible a program that allows the improvement of the quality of life of the inhabitants through the practice of physical activity. To describe health promotion strategies in the city that collaborate in the reduction of chronic non-communicable diseases (CDNT) and the improvement the quality of its residents. Considering the CDNT as a fundamental public health concern in different countries, the methodology of this work considered the different actions of health promotion that occurred in the city for the implementation of the Polo Health Academy with the objective of increasing the population's access to places that could develop targeted physical activities. As an instrument, it used records of participants of this academy such as: assessment sheets, evolution, photos, filming and daily reports of physical activities. Results: The implantation and implementation process of the Polo Health Academy in the city of Conchal / SP / Brazil was in accordance with the principles and values of the National Health Promotion Policy (PNaPS) in Brazil and with the city statute, that provides improvement in the quality of life of the Brazilian population. An increase was observed in the number of participants in different hours practicing physical activities in the territory linked to one of the five Health Units, showing the program provides that happiness and well-being to the students. The Brazilian health promotion policy, combined with the city’s development policy, provides the population with access to programs that stimulate the reduction of CDNTs, confirming the urban planning of a healthy city. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=health%20city" title="health city">health city</a>, <a href="https://publications.waset.org/abstracts/search?q=health%20promotion" title=" health promotion"> health promotion</a>, <a href="https://publications.waset.org/abstracts/search?q=physical%20activity" title=" physical activity"> physical activity</a>, <a href="https://publications.waset.org/abstracts/search?q=urban%20planning" title=" urban planning"> urban planning</a> </p> <a href="https://publications.waset.org/abstracts/86731/spaces-in-the-city-to-practice-physical-activities-case-study-of-conchal-sao-paulo-brazil" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/86731.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">192</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">161</span> Unveiling the Mystery of Innovation in Higher Education Institutions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ana%20Martins">Ana Martins</a>, <a href="https://publications.waset.org/abstracts/search?q=Isabel%20Martins"> Isabel Martins</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of this research is to ascertain whether students at HEIs cultivate distributed leadership and higher-level skills to inspire knowledge creation. Critical reflection of extant literature illustrates the need for a culture of innovation in organizational sustainability. New age leadership behaviors harmonize innovation. The leadership self-efficacy construct supports organizational learning. This exploratory study applies the pragmatic paradigm methodology using the survey research method for primary data collection. A questionnaire was distributed to a sample of university students based in the Southern Anatolian region of Turkey, from both under and postgraduate Business degree programs. An analysis of the findings reveals a greater connection in influencing behavior relying more on the task-centered perspective rather than with the people perspective. These results reveal the need for HEIs to instill a humanistic perspective in curricula enabling graduates to be capable leaders with the awareness soft skills to energize creativity and innovation. A limitation of this research is that one university makes it difficult to generalize to a broader population. This study is of added value for scholars and organizations in the current knowledge and innovation economy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=distributed%20leadership" title="distributed leadership">distributed leadership</a>, <a href="https://publications.waset.org/abstracts/search?q=exploration" title=" exploration"> exploration</a>, <a href="https://publications.waset.org/abstracts/search?q=higher%20education%20institutions" title=" higher education institutions"> higher education institutions</a>, <a href="https://publications.waset.org/abstracts/search?q=innovation" title=" innovation"> innovation</a>, <a href="https://publications.waset.org/abstracts/search?q=knowledge%20creation" title=" knowledge creation"> knowledge creation</a>, <a href="https://publications.waset.org/abstracts/search?q=learning" title=" learning"> learning</a>, <a href="https://publications.waset.org/abstracts/search?q=self-efficacy" title=" self-efficacy"> self-efficacy</a> </p> <a href="https://publications.waset.org/abstracts/95602/unveiling-the-mystery-of-innovation-in-higher-education-institutions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/95602.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">196</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">160</span> Entrepreneurship and Innovation: The Essence of Sustainable, Smart and Inclusive Economies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Isabel%20Martins">Isabel Martins</a>, <a href="https://publications.waset.org/abstracts/search?q=Orlando%20Pereira"> Orlando Pereira</a>, <a href="https://publications.waset.org/abstracts/search?q=Ana%20Martins"> Ana Martins</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aims to highlight that, in changing environments, organisations need to adapt their behaviours to the demands of the new economic reality. The main purpose of this study focuses on the relationship between entrepreneurship, innovation with learning as the mediating factor. It is within this entrepreneurial spirit that literature reveals a concern with the current economic perspective towards knowledge and considers it as both the production factor par excellence and a source of entrepreneurial capacity and innovation. Entrepreneurship is a mind-set focused on identifying opportunities of economic value and translates these into the pursuit of business opportunities through innovation. It connects art and science and is a way of life, as opposed to a simple mode of business creation and profiteering. This perspective underlines the need to develop the global individual for the globalised world, the strategic key to economic and social development. The objective of this study is to explore the notion that relational capital which is established between the entrepreneur and all the other economic role players both inside and outside the organization, is indeed determinant in developing the entrepreneurial capacity. However, this depends on the organizational culture of innovation. In this context, entrepreneurship is an ‘entrepreneurial capital’ inherent in the organization that is not limited to skills needed for work. This study is a critique of extant literature review which will be also be supported by primary data collection gathered to study graduates’ perceptions towards their entrepreneurial capital. Limitations are centered on both the design and of the sample of this study. This study is of added value for both scholars and organisations in the current innovation economy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=entrepreneurship" title="entrepreneurship">entrepreneurship</a>, <a href="https://publications.waset.org/abstracts/search?q=innovation" title=" innovation"> innovation</a>, <a href="https://publications.waset.org/abstracts/search?q=learning" title=" learning"> learning</a>, <a href="https://publications.waset.org/abstracts/search?q=relational%20capital" title=" relational capital "> relational capital </a> </p> <a href="https://publications.waset.org/abstracts/82934/entrepreneurship-and-innovation-the-essence-of-sustainable-smart-and-inclusive-economies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82934.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">228</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">159</span> Mercury (Hg) Concentration in Fish Marketed in the São Luís Fish Market (MA) and Potential Exposure of Consumers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Luiz%20Drude%20de%20Lacerda">Luiz Drude de Lacerda</a>, <a href="https://publications.waset.org/abstracts/search?q=Kevin%20Luiz%20Cordeiro%20Ferrer%20do%20Carmo"> Kevin Luiz Cordeiro Ferrer do Carmo</a>, <a href="https://publications.waset.org/abstracts/search?q=Victor%20Lacerda%20Moura"> Victor Lacerda Moura</a>, <a href="https://publications.waset.org/abstracts/search?q=Rayone%20Wesley%20Santos%20de%20Oliveira"> Rayone Wesley Santos de Oliveira</a>, <a href="https://publications.waset.org/abstracts/search?q=Mois%C3%A9s%20Fernandes%20Bezerra"> Moisés Fernandes Bezerra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fish is a food source well recognized for its health benefits. However, the consumption of fish, especially carnivorous species, is the main path of human exposure to Hg, a widely distributed pollutant on the planet and that accumulates along food chains. Studies on the impacts on public health by fish intake show existing toxic risks even when at low concentrations. This study quantifies, for the first time, the concentrations of Hg in muscle tissue of the nine most commercialized fish species in the fish market of São Luís (MA) in north Brazil and estimates the consequent human exposure through consumption. Concentrations varied according to trophic level, with the highest found in the larger carnivorous species; the Yellow hake (Cynoscion acoupa) (296.4 ± 241.2 ng/g w.w) and the Atlantic croaker (Micropogonias undulatus) (262.8 ± 89.1 ng/g w.w.), whereas the lowest concentrations were recorded in iliophagous Mullets (Mugil curema) (20.5 ± 9.6 ng/g w.w.). Significant correlations were observed between Hg concentrations and individual length in only two species: the Flaming catfish (Bagre marinus) and the Atlantic bumper (Chloroscombrus crysurus). Given the relatively uniform size of individuals of the other species and/or the small number of samples, this relationship was not found for the other species. The estimated risk coefficients, despite the relatively low concentrations of Hg, suggest that yellow hake and Whitemouth croaker (Micropogonias furnieri), fish most consumed by the local population, present some risk to human health (> 1) HQ and THQ, depending on the frequency of their consumption. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=contamination" title="contamination">contamination</a>, <a href="https://publications.waset.org/abstracts/search?q=fish" title=" fish"> fish</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20exposure" title=" human exposure"> human exposure</a>, <a href="https://publications.waset.org/abstracts/search?q=risk%20assessment" title=" risk assessment"> risk assessment</a> </p> <a href="https://publications.waset.org/abstracts/159037/mercury-hg-concentration-in-fish-marketed-in-the-sao-luis-fish-market-ma-and-potential-exposure-of-consumers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/159037.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">112</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">158</span> The Effects of Transcranial Direct Current Stimulation on Brain Oxygenation and Pleasure during Exercise</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20H.%20Okano">Alexandre H. Okano</a>, <a href="https://publications.waset.org/abstracts/search?q=Pedro%20M.%20D.%20Agr%C3%ADcola"> Pedro M. D. Agrícola</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20G.%20Da%20S.%20Machado"> Daniel G. Da S. Machado</a>, <a href="https://publications.waset.org/abstracts/search?q=Luiz%20I.%20Do%20N.%20Neto"> Luiz I. Do N. Neto</a>, <a href="https://publications.waset.org/abstracts/search?q=Luiz%20F.%20Farias%20Junior"> Luiz F. Farias Junior</a>, <a href="https://publications.waset.org/abstracts/search?q=Paulo%20H.%20D.%20Nascimento"> Paulo H. D. Nascimento</a>, <a href="https://publications.waset.org/abstracts/search?q=Rickson%20C.%20Mesquita"> Rickson C. Mesquita</a>, <a href="https://publications.waset.org/abstracts/search?q=John%20F.%20Araujo"> John F. Araujo</a>, <a href="https://publications.waset.org/abstracts/search?q=Eduardo%20B.%20Fontes"> Eduardo B. Fontes</a>, <a href="https://publications.waset.org/abstracts/search?q=Hassan%20M.%20Elsangedy"> Hassan M. Elsangedy</a>, <a href="https://publications.waset.org/abstracts/search?q=Shinsuke%20Shimojo"> Shinsuke Shimojo</a>, <a href="https://publications.waset.org/abstracts/search?q=Li%20M.%20Li"> Li M. Li</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The prefrontal cortex is involved in the reward system and the insular cortex integrates the afferent inputs arriving from the body’ systems and turns into feelings. Therefore, modulating neuronal activity in these regions may change individuals’ perception in a given situation such as exercise. We tested whether transcranial direct current stimulation (tDCS) change cerebral oxygenation and pleasure during exercise. Fourteen volunteer healthy adult men were assessed into five different sessions. First, subjects underwent to a maximum incremental test on a cycle ergometer. Then, subjects were randomly assigned to a transcranial direct current stimulation (2mA for 15 min) intervention in a cross over design in four different conditions: anode and cathode electrodes on T3 and Fp2 targeting the insular cortex, and Fpz and F4 targeting prefrontal cortex, respectively; and their respective sham. These sessions were followed by 30 min of moderate intensity exercise. Brain oxygenation was measured in prefrontal cortex with a near infrared spectroscopy. Perceived exertion and pleasure were also measured during exercise. The asymmetry in prefrontal cortex oxygenation before the stimulation decreased only when it was applied over this region which did not occur after insular cortex or sham stimulation. Furthermore, pleasure was maintained during exercise only after prefrontal cortex stimulation (P > 0.7), while there was a decrease throughout exercise (P < 0.03) during the other conditions. We conclude that tDCS over the prefrontal cortex changes brain oxygenation in ventromedial prefrontal cortex and maintains perceived pleasure during exercise. Therefore, this technique might be used to enhance effective responses related to exercise. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=affect" title="affect">affect</a>, <a href="https://publications.waset.org/abstracts/search?q=brain%20stimulation" title=" brain stimulation"> brain stimulation</a>, <a href="https://publications.waset.org/abstracts/search?q=dopamine%20neuromodulation" title=" dopamine neuromodulation"> dopamine neuromodulation</a>, <a href="https://publications.waset.org/abstracts/search?q=pleasure" title=" pleasure"> pleasure</a>, <a href="https://publications.waset.org/abstracts/search?q=reward" title=" reward"> reward</a>, <a href="https://publications.waset.org/abstracts/search?q=transcranial%20direct%20current%20stimulation" title=" transcranial direct current stimulation"> transcranial direct current stimulation</a> </p> <a href="https://publications.waset.org/abstracts/75181/the-effects-of-transcranial-direct-current-stimulation-on-brain-oxygenation-and-pleasure-during-exercise" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/75181.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">326</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">157</span> Fuzzy Control and Pertinence Functions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Luiz%20F.%20J.%20Maia">Luiz F. J. Maia</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents an approach to fuzzy control, with the use of new pertinence functions, applied in the case of an inverted pendulum. Appropriate definitions of pertinence functions to fuzzy sets make possible the implementation of the controller with only one control rule, resulting in a smooth control surface. The fuzzy control system can be implemented with analog devices, affording a true real-time performance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=control%20surface" title="control surface">control surface</a>, <a href="https://publications.waset.org/abstracts/search?q=fuzzy%20control" title=" fuzzy control"> fuzzy control</a>, <a href="https://publications.waset.org/abstracts/search?q=Inverted%20pendulum" title=" Inverted pendulum"> Inverted pendulum</a>, <a href="https://publications.waset.org/abstracts/search?q=pertinence%20functions" title=" pertinence functions"> pertinence functions</a> </p> <a href="https://publications.waset.org/abstracts/2467/fuzzy-control-and-pertinence-functions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2467.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">449</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">156</span> Galvinising Higher Education Institutions as Creative, Humanised and Innovative Environments</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Martins">A. Martins</a>, <a href="https://publications.waset.org/abstracts/search?q=I.%20Martins"> I. Martins</a>, <a href="https://publications.waset.org/abstracts/search?q=O.%20Pereira"> O. Pereira</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of this research is to focus on the importance of distributed leadership in universities and Higher Education Institutions (HEIs). The research question is whether there a significant finding in self-reported ratings of leadership styles of those respondents that are studying management. The study aims to further discover whether students are encouraged to become responsible and proactive citizens, to develop their skills set, specifically shared leadership and higher-level skills to inspire creation knowledge, sharing and distribution thereof. Contemporary organizations need active and responsible individuals who are capable to make decisions swiftly and responsibly. Leadership influences innovative results and education play a dynamic role in preparing graduates. Critical reflection of extant literature indicates a need for a culture of leadership and innovation to promote organizational sustainability in the globalised world. This study debates the need for HEIs to prepare the graduate for both organizations and society as a whole. This active collaboration should be the very essence of both universities and the industry in order for these to achieve responsible sustainability. Learning and innovation further depend on leadership efficacy. This study follows the pragmatic paradigm methodology. Primary data collection is currently being gathered via the web-based questionnaire link which was made available on the UKZN notice system. The questionnaire has 35 items with a Likert scale of five response options. The purposeful sample method was used, and the population entails the undergraduate and postgraduate students in the College of Law and Business, University of KwaZulu-Natal, South Africa. Limitations include the design of the study and the reliance on the quantitative data as the only method of primary data collection. This study is of added value for scholars and organizations in the innovation economy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=knowledge%20creation" title="knowledge creation">knowledge creation</a>, <a href="https://publications.waset.org/abstracts/search?q=learning" title=" learning"> learning</a>, <a href="https://publications.waset.org/abstracts/search?q=performance" title=" performance"> performance</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainability" title=" sustainability"> sustainability</a> </p> <a href="https://publications.waset.org/abstracts/82336/galvinising-higher-education-institutions-as-creative-humanised-and-innovative-environments" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82336.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">287</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">155</span> Prototype of an Interactive Toy from Lego Robotics Kits for Children with Autism</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ricardo%20A.%20Martins">Ricardo A. Martins</a>, <a href="https://publications.waset.org/abstracts/search?q=Matheus%20S.%20da%20Silva"> Matheus S. da Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Gabriel%20H.%20F.%20Iarossi"> Gabriel H. F. Iarossi</a>, <a href="https://publications.waset.org/abstracts/search?q=Helen%20C.%20M.%20Senefonte"> Helen C. M. Senefonte</a>, <a href="https://publications.waset.org/abstracts/search?q=Cinthyan%20R.%20S.%20C.%20de%20Barbosa"> Cinthyan R. S. C. de Barbosa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper is the development of a concept of the man/robot interaction. More accurately in developing of an autistic child that have more troubles with interaction, here offers an efficient solution, even though simple; however, less studied for this public. This concept is based on code applied thought out the Lego NXT kit, built for the interpretation of the robot, thereby can create this interaction in a constructive way for children suffering with Autism. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=lego%20NXT" title="lego NXT">lego NXT</a>, <a href="https://publications.waset.org/abstracts/search?q=interaction" title=" interaction"> interaction</a>, <a href="https://publications.waset.org/abstracts/search?q=BricX" title=" BricX"> BricX</a>, <a href="https://publications.waset.org/abstracts/search?q=autismo" title=" autismo"> autismo</a>, <a href="https://publications.waset.org/abstracts/search?q=ANN%20%28Artificial%20Neural%20Network%29" title=" ANN (Artificial Neural Network)"> ANN (Artificial Neural Network)</a>, <a href="https://publications.waset.org/abstracts/search?q=MLP%20back%20propagation" title=" MLP back propagation"> MLP back propagation</a>, <a href="https://publications.waset.org/abstracts/search?q=hidden%20layers" title=" hidden layers"> hidden layers</a> </p> <a href="https://publications.waset.org/abstracts/8362/prototype-of-an-interactive-toy-from-lego-robotics-kits-for-children-with-autism" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8362.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">569</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">154</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">153</span> Computational Tool for Surface Electromyography Analysis; an Easy Way for Non-Engineers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fabiano%20Araujo%20Soares">Fabiano Araujo Soares</a>, <a href="https://publications.waset.org/abstracts/search?q=Sauro%20Emerick%20Salomoni"> Sauro Emerick Salomoni</a>, <a href="https://publications.waset.org/abstracts/search?q=Joao%20Paulo%20Lima%20da%20Silva"> Joao Paulo Lima da Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Igor%20Luiz%20Moura"> Igor Luiz Moura</a>, <a href="https://publications.waset.org/abstracts/search?q=Adson%20Ferreira%20da%20Rocha"> Adson Ferreira da Rocha </a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a tool developed in the Matlab platform. It was developed to simplify the analysis of surface electromyography signals (S-EMG) in a way accessible to users that are not familiarized with signal processing procedures. The tool receives data by commands in window fields and generates results as graphics and excel tables. The underlying math of each S-EMG estimator is presented. Setup window and result graphics are presented. The tool was presented to four non-engineer users and all of them managed to appropriately use it after a 5 minutes instruction period. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=S-EMG%20estimators" title="S-EMG estimators">S-EMG estimators</a>, <a href="https://publications.waset.org/abstracts/search?q=electromyography" title=" electromyography"> electromyography</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20electromyography" title=" surface electromyography"> surface electromyography</a>, <a href="https://publications.waset.org/abstracts/search?q=ARV" title=" ARV"> ARV</a>, <a href="https://publications.waset.org/abstracts/search?q=RMS" title=" RMS"> RMS</a>, <a href="https://publications.waset.org/abstracts/search?q=MDF" title=" MDF"> MDF</a>, <a href="https://publications.waset.org/abstracts/search?q=MNF" title=" MNF"> MNF</a>, <a href="https://publications.waset.org/abstracts/search?q=CV" title=" CV"> CV</a> </p> <a href="https://publications.waset.org/abstracts/33667/computational-tool-for-surface-electromyography-analysis-an-easy-way-for-non-engineers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33667.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">559</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">152</span> Reliability-Based Life-Cycle Cost Model for Engineering Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Reza%20Lotfalian">Reza Lotfalian</a>, <a href="https://publications.waset.org/abstracts/search?q=Sudarshan%20Martins"> Sudarshan Martins</a>, <a href="https://publications.waset.org/abstracts/search?q=Peter%20Radziszewski"> Peter Radziszewski</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The effect of reliability on life-cycle cost, including initial and maintenance cost of a system is studied. The failure probability of a component is used to calculate the average maintenance cost during the operation cycle of the component. The standard deviation of the life-cycle cost is also calculated as an error measure for the average life-cycle cost. As a numerical example, the model is used to study the average life cycle cost of an electric motor. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=initial%20cost" title="initial cost">initial cost</a>, <a href="https://publications.waset.org/abstracts/search?q=life-cycle%20cost" title=" life-cycle cost"> life-cycle cost</a>, <a href="https://publications.waset.org/abstracts/search?q=maintenance%20cost" title=" maintenance cost"> maintenance cost</a>, <a href="https://publications.waset.org/abstracts/search?q=reliability" title=" reliability"> reliability</a> </p> <a href="https://publications.waset.org/abstracts/11947/reliability-based-life-cycle-cost-model-for-engineering-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11947.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">605</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">151</span> Smartphones in the (Class) Room in Pandemic and Post-pandemic Times: a Study in an Ecological Perspective</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Junia%20Braga">Junia Braga</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonio%20carlos%20Martins"> Antonio carlos Martins</a>, <a href="https://publications.waset.org/abstracts/search?q=Marcos%20Racilan"> Marcos Racilan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Drawing on the ecological approach, this paper reports a qualitative study that aims to understand how mobile technologies were integrated during the pandemic in the context of language teaching and the use of these technologies in post-pandemic times. Seventy-six teachers answered a questionnaire about their experiences. The findings show how the network with peers scaffolded this experience and played a crucial role in their appropriation of those technologies. They also suggest that this network may have contributed to the normalisation of digital technology use. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ecological%20perspective" title="ecological perspective">ecological perspective</a>, <a href="https://publications.waset.org/abstracts/search?q=language%20teaching" title=" language teaching"> language teaching</a>, <a href="https://publications.waset.org/abstracts/search?q=mobile%20technologies" title=" mobile technologies"> mobile technologies</a>, <a href="https://publications.waset.org/abstracts/search?q=teacher%20education" title=" teacher education"> teacher education</a> </p> <a href="https://publications.waset.org/abstracts/152099/smartphones-in-the-class-room-in-pandemic-and-post-pandemic-times-a-study-in-an-ecological-perspective" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152099.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">108</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">150</span> SIFT and Perceptual Zoning Applied to CBIR Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Simone%20B.%20K.%20Aires">Simone B. K. Aires</a>, <a href="https://publications.waset.org/abstracts/search?q=Cinthia%20O.%20de%20A.%20Freitas"> Cinthia O. de A. Freitas</a>, <a href="https://publications.waset.org/abstracts/search?q=Luiz%20E.%20S.%20Oliveira"> Luiz E. S. Oliveira</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper contributes to the CBIR systems applied to trademark retrieval. The proposed model includes aspects from visual perception of the shapes, by means of feature extractor associated to a non-symmetrical perceptual zoning mechanism based on the Principles of Gestalt. Thus, the feature set were performed using Scale Invariant Feature Transform (SIFT). We carried out experiments using four different zonings strategies (Z = 4, 5H, 5V, 7) for matching and retrieval tasks. Our proposal method achieved the normalized recall (Rn) equal to 0.84. Experiments show that the non-symmetrical zoning could be considered as a tool to build more reliable trademark retrieval systems. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CBIR" title="CBIR">CBIR</a>, <a href="https://publications.waset.org/abstracts/search?q=Gestalt" title=" Gestalt"> Gestalt</a>, <a href="https://publications.waset.org/abstracts/search?q=matching" title=" matching"> matching</a>, <a href="https://publications.waset.org/abstracts/search?q=non-symmetrical%20zoning" title=" non-symmetrical zoning"> non-symmetrical zoning</a>, <a href="https://publications.waset.org/abstracts/search?q=SIFT" title=" SIFT"> SIFT</a> </p> <a href="https://publications.waset.org/abstracts/15764/sift-and-perceptual-zoning-applied-to-cbir-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15764.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">313</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">149</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">536</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">148</span> Genomic Evidence for Ancient Human Migrations Along South America's East Coast</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Andre%20Luiz%20Campelo%20dos%20Santos">Andre Luiz Campelo dos Santos</a>, <a href="https://publications.waset.org/abstracts/search?q=Amanda%20Owings"> Amanda Owings</a>, <a href="https://publications.waset.org/abstracts/search?q=Henry%20Socrates%20Lavalle%20Sullasi"> Henry Socrates Lavalle Sullasi</a>, <a href="https://publications.waset.org/abstracts/search?q=Omer%20Gokcumen"> Omer Gokcumen</a>, <a href="https://publications.waset.org/abstracts/search?q=Michael%20DeGiorgio"> Michael DeGiorgio</a>, <a href="https://publications.waset.org/abstracts/search?q=John%20Lindo"> John Lindo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An increasing body of archaeological and genomic evidence have indicated a complex settlement process of the Americas. Here, four newly sequenced ancient genomes from Northeast Brazil and Uruguay are reported to share strong relationships with previously published samples from Panama and Southeast Brazil. Moreover, an unexpected high genomic affinity with present-day Onge is found in ancient individuals unearthed along the northern portion of South America’s Atlantic coast. These results provide genomic evidence for ancient migrations along South America’s Atlantic coast. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=archaeogenomics" title="archaeogenomics">archaeogenomics</a>, <a href="https://publications.waset.org/abstracts/search?q=atlantic%20coast" title=" atlantic coast"> atlantic coast</a>, <a href="https://publications.waset.org/abstracts/search?q=paleomigrations" title=" paleomigrations"> paleomigrations</a>, <a href="https://publications.waset.org/abstracts/search?q=South%20America" title=" South America"> South America</a> </p> <a href="https://publications.waset.org/abstracts/148451/genomic-evidence-for-ancient-human-migrations-along-south-americas-east-coast" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/148451.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">241</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">147</span> Accounting Performance of the Leading Companies in the Construction Sector in Brazil during the Period 2009-2012</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fabr%C3%ADcio%20Jos%C3%A9%20Piacente">Fabrício José Piacente</a>, <a href="https://publications.waset.org/abstracts/search?q=Vanessa%20de%20Cillos%20Silva"> Vanessa de Cillos Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Thiago%20Luiz%20Mello%20Melato"> Thiago Luiz Mello Melato</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The construction industry has been demonstrating increased growth and importance in Brazil’s national economic development. This study aims to evaluate the financial performance of the leading companies in the construction sector in Brazil in the period from 2009 to 2012. An analysis is made of the capital structure, liquidity, and profitability of the six largest companies in the construction sector in Brazil: Brookfield, Cyrela, Gafisa, MRV, PDG and Rossi. The results are then compared with standard industry ratios. It was found that among the companies analyzed, MRV and Cyrela showed the best relative performance in the period under consideration. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=accounting%20ratios" title="accounting ratios">accounting ratios</a>, <a href="https://publications.waset.org/abstracts/search?q=construction" title=" construction"> construction</a>, <a href="https://publications.waset.org/abstracts/search?q=financial%20performance" title=" financial performance"> financial performance</a>, <a href="https://publications.waset.org/abstracts/search?q=Brazil" title=" Brazil"> Brazil</a> </p> <a href="https://publications.waset.org/abstracts/26544/accounting-performance-of-the-leading-companies-in-the-construction-sector-in-brazil-during-the-period-2009-2012" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26544.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">434</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">146</span> Radiation Effects in the PVDF/Graphene Oxide Nanocomposites</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Juliana%20V.%20Pereira">Juliana V. Pereira</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20S.%20M.%20Batista"> Adriana S. M. Batista</a>, <a href="https://publications.waset.org/abstracts/search?q=Jefferson%20P.%20Nascimento"> Jefferson P. Nascimento</a>, <a href="https://publications.waset.org/abstracts/search?q=Clasc%C3%ADdia%20A.%20Furtado"> Clascídia A. Furtado</a>, <a href="https://publications.waset.org/abstracts/search?q=Luiz%20O.%20Faria"> Luiz O. Faria</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Exposure to ionizing radiation has been found to induce changes in poly(vinylidene fluoride) (PVDF) homopolymers. The high dose gamma irradiation process induces the formation of C=C and C=O bonds in its [CH<sub>2</sub>-CF<sub>2</sub>]<sub>n</sub> main chain. The irradiation also provokes crosslinking and chain scission. All these radio-induced defects lead to changes in the PVDF crystalline structure. As a consequence, it is common to observe a decrease in the melting temperature (T<sub>M</sub>) and melting latent heat (L<sub>M</sub>) and some changes in its ferroelectric features. We have investigated the possibility of preparing nanocomposites of PVDF with graphene oxide (GO) through the radio-induction of molecular bonds. In this work, we discuss how the gamma radiation interacts with the nanocomposite crystalline structure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=gamma%20irradiation" title="gamma irradiation">gamma irradiation</a>, <a href="https://publications.waset.org/abstracts/search?q=graphene%20oxide" title=" graphene oxide"> graphene oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=nanocomposites" title=" nanocomposites"> nanocomposites</a>, <a href="https://publications.waset.org/abstracts/search?q=PVDF" title=" PVDF"> PVDF</a> </p> <a href="https://publications.waset.org/abstracts/66621/radiation-effects-in-the-pvdfgraphene-oxide-nanocomposites" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66621.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">286</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">145</span> Numerical Investigation of the Effect of the Spark Plug Gap on Engine-Like Conditions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fernanda%20Pinheiro%20Martins">Fernanda Pinheiro Martins</a>, <a href="https://publications.waset.org/abstracts/search?q=Pedro%20Teixeira%20Lacava"> Pedro Teixeira Lacava</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this research is to analyze the effects of different spark plug conditions in engine-like conditions by applying computational fluid dynamics analysis. The 3D models applied consist of 3-Zones Extended Coherent Flame (ECFM-3Z) and Imposed Stretch Spark Ignition Model (ISSIM), respectively, for the combustion and the spark plug modelling. For this study, it was applied direct injection fuel system in a single cylinder engine operating with E0. The application of realistic operating conditions (load and speed) to the different cases studied will provide a deeper understanding of the effects of the spark plug gap, a result of parts outwearing in most of the cases, to the development of the combustion in engine-like conditions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=engine" title="engine">engine</a>, <a href="https://publications.waset.org/abstracts/search?q=CFD" title=" CFD"> CFD</a>, <a href="https://publications.waset.org/abstracts/search?q=direct%20injection" title=" direct injection"> direct injection</a>, <a href="https://publications.waset.org/abstracts/search?q=combustion" title=" combustion"> combustion</a>, <a href="https://publications.waset.org/abstracts/search?q=spark%20plug" title=" spark plug"> spark plug</a> </p> <a href="https://publications.waset.org/abstracts/156457/numerical-investigation-of-the-effect-of-the-spark-plug-gap-on-engine-like-conditions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156457.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">130</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">144</span> Low Cost Surface Electromyographic Signal Amplifier Based on Arduino Microcontroller</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Igor%20Luiz%20Bernardes%20de%20Moura">Igor Luiz Bernardes de Moura</a>, <a href="https://publications.waset.org/abstracts/search?q=Luan%20Carlos%20de%20Sena%20Monteiro%20Ozelim"> Luan Carlos de Sena Monteiro Ozelim</a>, <a href="https://publications.waset.org/abstracts/search?q=Fabiano%20Araujo%20Soares"> Fabiano Araujo Soares</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The development of a low cost acquisition system of S-EMG signals which are reliable, comfortable for the user and with high mobility shows to be a relevant proposition in modern biomedical engineering scenario. In the study, the sampling capacity of the Arduino microcontroller Atmel Atmega328 with an A/D converter with 10-bit resolution and its reconstructing capability of a signal of surface electromyography are analyzed. An electronic circuit to capture the signal through two differential channels was designed, signals from Biceps Brachialis of a healthy man of 21 years was acquired to test the system prototype. ARV, MDF, MNF and RMS estimators were used to compare de acquired signals with physiological values. The Arduino was configured with a sampling frequency of 1.5 kHz for each channel, and the tests with the circuit designed offered a SNR of 20.57dB. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electromyography" title="electromyography">electromyography</a>, <a href="https://publications.waset.org/abstracts/search?q=Arduino" title=" Arduino"> Arduino</a>, <a href="https://publications.waset.org/abstracts/search?q=low-cost" title=" low-cost"> low-cost</a>, <a href="https://publications.waset.org/abstracts/search?q=atmel%20atmega328%20microcontroller" title=" atmel atmega328 microcontroller"> atmel atmega328 microcontroller</a> </p> <a href="https://publications.waset.org/abstracts/5919/low-cost-surface-electromyographic-signal-amplifier-based-on-arduino-microcontroller" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/5919.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">366</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">143</span> Increase of Atmosphere CO2 Concentration and Its Effects on Culture/Weed Interaction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=J.%20I.%20Santos">J. I. Santos</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20E.%20Cesarin"> A. E. Cesarin</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20A.%20R.%20Sales"> C. A. R. Sales</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20B.%20B.%20Triano"> M. B. B. Triano</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20F.%20R.%20B.%20Martins"> P. F. R. B. Martins</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20F.%20Braga"> A. F. Braga</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20J.%20Neto"> N. J. Neto</a>, <a href="https://publications.waset.org/abstracts/search?q=A."> A.</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20M.%20Barroso"> A. M. Barroso</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20L.%20C.%20A.%20Alves"> P. L. C. A. Alves</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20A.%20M.%20Huaman"> C. A. M. Huaman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Climate change projections based on the emission of greenhouse effect gases suggest an increase in the concentration of atmospheric carbon dioxide, in up to 750 ppm. In this scenario, we have significant changes in plant development, and consequently, in agricultural systems. This study aims to evaluate the interaction between culture (<em>Glycine max</em>) and weed (<em>Amaranthus viridis</em> and <em>Euphorbia heterophylla</em>) in two conditions of CO<sub>2</sub>, 400 and 800 ppm. The results showed that the coexistence of culture with both weed species resulted in a mutual loss, with decrease in dry mass productivity of culture + weeds, in both conditions of CO<sub>2</sub>. However, when the culture is grown in association with <em>E. heterophylla</em>, total dry mass of culture + weed was smaller at 800 ppm. Soybean was more aggressive in comparison to the <em>A. viridis</em> in both the concentrations of CO<sub>2</sub>, but not in relation to the <em>E. heterophylla</em>. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=plants%20interaction" title="plants interaction">plants interaction</a>, <a href="https://publications.waset.org/abstracts/search?q=increase%20of%20%5BCO%E2%82%82%5D" title=" increase of [CO₂]"> increase of [CO₂]</a>, <a href="https://publications.waset.org/abstracts/search?q=plants%20of%20metabolismo%20C3" title=" plants of metabolismo C3"> plants of metabolismo C3</a>, <a href="https://publications.waset.org/abstracts/search?q=glycine%20max" title=" glycine max"> glycine max</a> </p> <a href="https://publications.waset.org/abstracts/71620/increase-of-atmosphere-co2-concentration-and-its-effects-on-cultureweed-interaction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71620.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">399</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">142</span> Ensuring Consistency under the Snapshot Isolation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Carlos%20Roberto%20Val%C3%AAncio">Carlos Roberto Valêncio</a>, <a href="https://publications.waset.org/abstracts/search?q=F%C3%A1bio%20Renato%20de%20Almeida"> Fábio Renato de Almeida</a>, <a href="https://publications.waset.org/abstracts/search?q=Thatiane%20Kawabata"> Thatiane Kawabata</a>, <a href="https://publications.waset.org/abstracts/search?q=Leandro%20Alves%20Neves"> Leandro Alves Neves</a>, <a href="https://publications.waset.org/abstracts/search?q=Julio%20Cesar%20Momente"> Julio Cesar Momente</a>, <a href="https://publications.waset.org/abstracts/search?q=Mario%20Luiz%20Tronco"> Mario Luiz Tronco</a>, <a href="https://publications.waset.org/abstracts/search?q=Angelo%20Cesar%20Colombini"> Angelo Cesar Colombini</a> </p> <p class="card-text"><strong>Abstract:</strong></p> By running transactions under the Snapshot isolation we can achieve a good level of concurrency, specially in databases with high-intensive read workloads. However, Snapshot is not immune to all the problems that arise from competing transactions and therefore no serialization warranty exists. We propose in this paper a technique to obtain data consistency with Snapshot by using some special triggers that we named Daemon Triggers. Besides keeping the benefits of the Snapshot isolation, the technique is specially useful for those database systems that do not have an isolation level that ensures serializability, like Firebird and Oracle. We describe all the anomalies that might arise when using the Snapshot isolation and show how to preclude them with Daemon Triggers. Based on the methodology presented here, it is also proposed the creation of a new isolation level: Daemon Snapshot. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=data%20consistency" title="data consistency">data consistency</a>, <a href="https://publications.waset.org/abstracts/search?q=serialization" title=" serialization"> serialization</a>, <a href="https://publications.waset.org/abstracts/search?q=snapshot" title=" snapshot"> snapshot</a>, <a href="https://publications.waset.org/abstracts/search?q=isolation" title=" isolation"> isolation</a> </p> <a href="https://publications.waset.org/abstracts/10560/ensuring-consistency-under-the-snapshot-isolation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10560.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">329</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">141</span> Innovations in the Lithium Chain Value</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fi%C3%BAza%20A.">Fiúza A.</a>, <a href="https://publications.waset.org/abstracts/search?q=G%C3%B3is%20J.%20Leite%20M."> Góis J. Leite M.</a>, <a href="https://publications.waset.org/abstracts/search?q=Braga%20H."> Braga H.</a>, <a href="https://publications.waset.org/abstracts/search?q=Lima%20A."> Lima A.</a>, <a href="https://publications.waset.org/abstracts/search?q=Jorge%20P."> Jorge P.</a>, <a href="https://publications.waset.org/abstracts/search?q=Moutela%20P."> Moutela P.</a>, <a href="https://publications.waset.org/abstracts/search?q=Martins%20L."> Martins L.</a>, <a href="https://publications.waset.org/abstracts/search?q=Futuro%20A."> Futuro A.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Lepidolite is an important lithium mineral that, to the author’s best knowledge, has not been used to produce lithium hydroxide, necessary for energy conversion to electric vehicles. Alkaline leaching of lithium concentrates allows the establishment of a production diagram avoiding most of the environmental drawbacks that are associated with the usage of acid reagents. The tested processes involve a pretreatment by digestion at high temperatures with additives, followed by leaching at hot atmospheric pressure. The solutions obtained must be compatible with solutions from the leaching of spodumene concentrates, allowing the development of a common treatment diagram, an important accomplishment for the feasible exploitation of Portuguese resources. Statistical programming and interpretation techniques are used to minimize the laboratory effort required by conventional approaches and also allow phenomenological comprehension. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=artificial%20intelligence" title="artificial intelligence">artificial intelligence</a>, <a href="https://publications.waset.org/abstracts/search?q=tailings%20free%20process" title=" tailings free process"> tailings free process</a>, <a href="https://publications.waset.org/abstracts/search?q=ferroelectric%20electrolyte%20battery" title=" ferroelectric electrolyte battery"> ferroelectric electrolyte battery</a>, <a href="https://publications.waset.org/abstracts/search?q=life%20cycle%20assessment" title=" life cycle assessment"> life cycle assessment</a> </p> <a href="https://publications.waset.org/abstracts/158715/innovations-in-the-lithium-chain-value" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158715.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">122</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">140</span> Static and Dynamical Analysis on Clutch Discs on Different Material and Geometries</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jairo%20Aparecido%20Martins">Jairo Aparecido Martins</a>, <a href="https://publications.waset.org/abstracts/search?q=Estaner%20Claro%20Rom%C3%A3o"> Estaner Claro Romão </a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents the static and cyclic stresses in combination with fatigue analysis resultant of loads applied on the friction discs usually utilized on industrial clutches. The material chosen to simulate the friction discs under load is aluminum. The numerical simulation was done by software COMSOL<sup>TM</sup> Multiphysics. The results obtained for static loads showed enough stiffness for both geometries and the material utilized. On the other hand, in the fatigue standpoint, failure is clearly verified, what demonstrates the importance of both approaches, mainly dynamical analysis. The results and the conclusion are based on the stresses on disc, counted stress cycles, and fatigue usage factor. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aluminum" title="aluminum">aluminum</a>, <a href="https://publications.waset.org/abstracts/search?q=industrial%20clutch" title=" industrial clutch"> industrial clutch</a>, <a href="https://publications.waset.org/abstracts/search?q=static%20and%20dynamic%20loading" title=" static and dynamic loading"> static and dynamic loading</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20simulation" title=" numerical simulation"> numerical simulation</a> </p> <a href="https://publications.waset.org/abstracts/78651/static-and-dynamical-analysis-on-clutch-discs-on-different-material-and-geometries" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/78651.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">189</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">139</span> Release of Calcein from Liposomes Using Low and High Frequency Ultrasound</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ghaleb%20A.%20Husseini">Ghaleb A. Husseini</a>, <a href="https://publications.waset.org/abstracts/search?q=Salma%20E.%20Ahmed"> Salma E. Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Hesham%20G.%20Moussa"> Hesham G. Moussa</a>, <a href="https://publications.waset.org/abstracts/search?q=Ana%20M.%20Martins"> Ana M. Martins</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Al-Sayah"> Mohammad Al-Sayah</a>, <a href="https://publications.waset.org/abstracts/search?q=Nasser%20Qaddoumi"> Nasser Qaddoumi </a> </p> <p class="card-text"><strong>Abstract:</strong></p> This abstract aims to investigate the use of targeted liposomes as anticancer drug carriers in vitro in combination with ultrasound applied as drug trigger; in order to reduce the side effects caused by traditional chemotherapy. Pegylated liposomes were used to encapsulate calcein and then release this model drug when 20-kHz, 40-kHz, 1-MHz and 3-MHz ultrasound were applied at different acoustic power densities. Fluorescence techniques were then used to measure the percent drug release of calcein from these targeted liposomes. Results showed that as the power density increases, at the four frequencies studied, the release of calcein also increased. Based on these results, we believe that ultrasound can be used to increase the rate and amount of chemotherapeutics release from liposomes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=liposomes" title="liposomes">liposomes</a>, <a href="https://publications.waset.org/abstracts/search?q=calcein%20release" title=" calcein release"> calcein release</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20frequency%20ultrasound" title=" high frequency ultrasound"> high frequency ultrasound</a>, <a href="https://publications.waset.org/abstracts/search?q=low%20frequency%20ultrasound" title=" low frequency ultrasound"> low frequency ultrasound</a>, <a href="https://publications.waset.org/abstracts/search?q=fluorescence%20techniques" title=" fluorescence techniques"> fluorescence techniques</a> </p> <a href="https://publications.waset.org/abstracts/24679/release-of-calcein-from-liposomes-using-low-and-high-frequency-ultrasound" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24679.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">426</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">138</span> Reliability Assessment of Various Empirical Formulas for Prediction of Scour Hole Depth (Plunge Pool) Using a Comprehensive Physical Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Majid%20Galoie">Majid Galoie</a>, <a href="https://publications.waset.org/abstracts/search?q=Khodadad%20Safavi"> Khodadad Safavi</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdolreza%20Karami%20Nejad"> Abdolreza Karami Nejad</a>, <a href="https://publications.waset.org/abstracts/search?q=Reza%20Roshan"> Reza Roshan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, a comprehensive scouring model has been developed in order to evaluate the accuracy of various empirical relationships which were suggested for prediction of scour hole depth in plunge pools by Martins, Mason, Chian and Veronese. For this reason, scour hole depths caused by free falling jets from a flip bucket to a plunge pool were investigated. In this study various discharges, angles, scouring times, etc. have been considered. The final results demonstrated that the all mentioned empirical formulas, except Mason formula, were reasonably agreement with the experimental data. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=scour%20hole%20depth" title="scour hole depth">scour hole depth</a>, <a href="https://publications.waset.org/abstracts/search?q=plunge%20pool" title=" plunge pool"> plunge pool</a>, <a href="https://publications.waset.org/abstracts/search?q=physical%20model" title=" physical model"> physical model</a>, <a href="https://publications.waset.org/abstracts/search?q=reliability%20assessment" title=" reliability assessment "> reliability assessment </a> </p> <a href="https://publications.waset.org/abstracts/20084/reliability-assessment-of-various-empirical-formulas-for-prediction-of-scour-hole-depth-plunge-pool-using-a-comprehensive-physical-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20084.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> <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=Luiz%20%20F.%20Martins&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Luiz%20%20F.%20Martins&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Luiz%20%20F.%20Martins&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Luiz%20%20F.%20Martins&page=5">5</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Luiz%20%20F.%20Martins&page=6">6</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Luiz%20%20F.%20Martins&page=2" rel="next">&rsaquo;</a></li> </ul> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/WASET-16th-foundational-anniversary.pdf">WASET celebrates its 16th foundational anniversary</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Account <li><a href="https://waset.org/profile">My Account</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Explore <li><a href="https://waset.org/disciplines">Disciplines</a></li> <li><a href="https://waset.org/conferences">Conferences</a></li> <li><a href="https://waset.org/conference-programs">Conference Program</a></li> <li><a href="https://waset.org/committees">Committees</a></li> <li><a href="https://publications.waset.org">Publications</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Research <li><a href="https://publications.waset.org/abstracts">Abstracts</a></li> <li><a href="https://publications.waset.org">Periodicals</a></li> <li><a href="https://publications.waset.org/archive">Archive</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Open Science <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Open-Science-Philosophy.pdf">Open Science Philosophy</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Open-Science-Award.pdf">Open Science Award</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Open-Society-Open-Science-and-Open-Innovation.pdf">Open Innovation</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Postdoctoral-Fellowship-Award.pdf">Postdoctoral Fellowship Award</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Scholarly-Research-Review.pdf">Scholarly Research Review</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Support <li><a href="https://waset.org/page/support">Support</a></li> <li><a href="https://waset.org/profile/messages/create">Contact Us</a></li> <li><a href="https://waset.org/profile/messages/create">Report Abuse</a></li> </ul> </div> </div> </div> </div> </div> <div class="container text-center"> <hr style="margin-top:0;margin-bottom:.3rem;"> <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank" class="text-muted small">Creative Commons Attribution 4.0 International License</a> <div id="copy" class="mt-2">© 2024 World Academy of Science, Engineering and Technology</div> </div> </footer> <a href="javascript:" id="return-to-top"><i class="fas fa-arrow-up"></i></a> <div class="modal" id="modal-template"> <div class="modal-dialog"> <div class="modal-content"> <div class="row m-0 mt-1"> <div class="col-md-12"> <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button> </div> </div> <div class="modal-body"></div> </div> </div> </div> <script src="https://cdn.waset.org/static/plugins/jquery-3.3.1.min.js"></script> <script src="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/js/bootstrap.bundle.min.js"></script> <script src="https://cdn.waset.org/static/js/site.js?v=150220211556"></script> <script> jQuery(document).ready(function() { /*jQuery.get("https://publications.waset.org/xhr/user-menu", function (response) { jQuery('#mainNavMenu').append(response); });*/ jQuery.get({ url: "https://publications.waset.org/xhr/user-menu", cache: false }).then(function(response){ jQuery('#mainNavMenu').append(response); }); }); </script> </body> </html>