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Da Costa Rodrigues</title> <meta name="description" content="Search results for: Luiz Antonio Da Costa Rodrigues"> <meta name="keywords" content="Luiz Antonio Da Costa Rodrigues"> <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> 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Luiz Antonio Da Costa Rodrigues"> <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> 600</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Luiz Antonio Da Costa Rodrigues</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">510</span> Public Health Campaign to Eradicate Hepatitis C Virus during the Covid-19 Emergency in the North-East of Italy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Emanuela%20Zilli">Emanuela Zilli</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonio%20Madia"> Antonio Madia</a>, <a href="https://publications.waset.org/abstracts/search?q=Milvia%20Marchiori"> Milvia Marchiori</a>, <a href="https://publications.waset.org/abstracts/search?q=Paola%20Anello"> Paola Anello</a>, <a href="https://publications.waset.org/abstracts/search?q=Chiara%20Cabbia"> Chiara Cabbia</a>, <a href="https://publications.waset.org/abstracts/search?q=Emanuela%20Velo"> Emanuela Velo</a>, <a href="https://publications.waset.org/abstracts/search?q=Delia%20Campagnolo"> Delia Campagnolo</a>, <a href="https://publications.waset.org/abstracts/search?q=Michele%20Scomazzon"> Michele Scomazzon</a>, <a href="https://publications.waset.org/abstracts/search?q=Emanuela%20Salvatico"> Emanuela Salvatico</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Tikvina"> S. Tikvina</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonio%20Miotti"> Antonio Miotti</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Hepatitis C is an inflammation of the liver caused by the hepatitis C virus (HCV). Antiviral medicines can cure more than 95% of cases of hepatitis C infection, but access to diagnosis and treatment remains low. The ULSS 6 Euganea – Health Trust has implemented a campaign to eradicate hepatitis C in the province of Padua (North-East of Italy), which can be subdivided into three areas: North (300.000 inhabitants), Centre (400.000) and South (300.000). In September 2021, the project was launched in the Northern area; a set of brochures was distributed in outpatient services, general practitioners’ clinics and offices, community pharmacy services, social health districts, and through social networks. The Hepatology Service contacted 460 patients selected by the Clinical Laboratory (positivity for HCV antibodies): 83 patients (18.0%) had been already cured of HCV infection, missing or deceased; 377 patients (82.0%) met the criteria to be eligible for HCV eradication therapy and were therefore included in a Day Service specific agenda and followed by a multidisciplinary team of healthcare professionals, with a dedicated telephone line. Haemato-chemical tests, general medical check-ups and ultrasound tests with fibroscan were performed. Patients were tested for Sars-CoV-2 positivity; those not yet vaccinated against Covid-19 were encouraged to complete the vaccination scheme. All 377 patients (100%) received HCV eradication therapy at the community pharmacy service; a detailed explanation of how to take their medication was provided. At the end of the first phase, Covid-19 vaccination rate was 100% (377/377), including patients already vaccinated and new-vaccinated. Check-up appointments were arranged after 2 or 3 months, according to the treatment plan. The awareness campaign and the organization of HCV eradication therapy service by ULSS 6 Euganea are proving to be effective; the project is now going to be applied to Central and Southern areas of the province (1.132 patients). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=public%20health" title="public health">public health</a>, <a href="https://publications.waset.org/abstracts/search?q=HCV-eradication" title=" HCV-eradication"> HCV-eradication</a>, <a href="https://publications.waset.org/abstracts/search?q=Covid-19%20emergency" title=" Covid-19 emergency"> Covid-19 emergency</a>, <a href="https://publications.waset.org/abstracts/search?q=health%20communication%20strategies" title=" health communication strategies"> health communication strategies</a> </p> <a href="https://publications.waset.org/abstracts/155555/public-health-campaign-to-eradicate-hepatitis-c-virus-during-the-covid-19-emergency-in-the-north-east-of-italy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/155555.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">105</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">509</span> Investigation of Polymer Composite for High Dose Dosimetry</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Esther%20Lorrayne%20%20M.%20Pereira">Esther Lorrayne M. 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=Fab%C3%ADola%20A.%20S.%20Ribeiro"> Fabíola A. S. Ribeiro</a>, <a href="https://publications.waset.org/abstracts/search?q=Adelina%20P.%20Santos"> Adelina P. Santos</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> In this work we have prepared nanocomposites made by mixing Poli (vinilidene fluoride) (PVDF), zirconium oxide (ZrO₂) and multi–walled carbon nanotubes (MWCNTs) aiming to find dosimetric properties for applications in high dose dosimetry. The samples were irradiated with a Co-60 source at constant dose rate (16.7 kGy/h), with doses ranging from 100 to 2750 kGy. The UV-Vis and FTIR spectrophotometry have been used to monitor the appearing of C=C conjugated bonds and radio-oxidation of carbon (C=O). FTIR spectrometry has that the absorbance intensities at 1715 cm⁻¹ and 1730 cm⁻¹ can be used for high dosimetry purposes for gamma doses ranging from 500 to 2750 kGy. In this range, it is possible to observe a linear relationship between Abs & Dose. Fading of signal was evaluated for one month and reproducibility in 2000 kGy dose. Scanning Electron Microscopy (SEM) and Energy-dispersive X-ray spectroscopy (EDX) was used for evaluated the dispersion ZrO₂ and MWCNT in the matrix of the PVDF. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=polymer" title="polymer">polymer</a>, <a href="https://publications.waset.org/abstracts/search?q=composite" title=" composite"> composite</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20dose%20dosimetry" title=" high dose dosimetry"> high dose dosimetry</a>, <a href="https://publications.waset.org/abstracts/search?q=PVDF%2FZrO%E2%82%82%2FMWCNT" title=" PVDF/ZrO₂/MWCNT"> PVDF/ZrO₂/MWCNT</a> </p> <a href="https://publications.waset.org/abstracts/65263/investigation-of-polymer-composite-for-high-dose-dosimetry" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65263.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">289</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">508</span> Static and Dynamic Tailings Dam Monitoring with Accelerometers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cristiana%20Ortig%C3%A3o">Cristiana Ortigão</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonio%20Couto"> Antonio Couto</a>, <a href="https://publications.waset.org/abstracts/search?q=Thiago%20Gabriel"> Thiago Gabriel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the wake of Samarco Fundão’s failure in 2015 followed by Vale’s Brumadinho disaster in 2019, the Brazilian National Mining Agency started a comprehensive dam safety programmed to rank dam safety risks and establish monitoring and analysis procedures. This paper focuses on the use of accelerometers for static and dynamic applications. Static applications may employ tiltmeters, as an example shown later in this paper. Dynamic monitoring of a structure with accelerometers yields its dynamic signature and this technique has also been successfully used in Brazil and this paper gives an example of tailings dam. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=instrumentation" title="instrumentation">instrumentation</a>, <a href="https://publications.waset.org/abstracts/search?q=dynamic" title=" dynamic"> dynamic</a>, <a href="https://publications.waset.org/abstracts/search?q=monitoring" title=" monitoring"> monitoring</a>, <a href="https://publications.waset.org/abstracts/search?q=tailings" title=" tailings"> tailings</a>, <a href="https://publications.waset.org/abstracts/search?q=dams" title=" dams"> dams</a>, <a href="https://publications.waset.org/abstracts/search?q=tiltmeters" title=" tiltmeters"> tiltmeters</a>, <a href="https://publications.waset.org/abstracts/search?q=automation" title=" automation"> automation</a> </p> <a href="https://publications.waset.org/abstracts/157581/static-and-dynamic-tailings-dam-monitoring-with-accelerometers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/157581.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">147</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">507</span> Analysis of a Power Factor Correction Converter for Light Emitting Diode Driver Application </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Edwina%20G.%20Rodrigues">Edwina G. Rodrigues</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20J.%20Bindhu"> S. J. Bindhu</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20V.%20Rajesh"> A. V. Rajesh </a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper proposes a switched capacitor based driver circuit for high power light emitting diodes with a front end rectifier. LEDs are low-voltage light sources, requiring a constant DC voltage or current to operate optimally. LEDs, therefore, require a device that can convert incoming AC power to the proper DC voltage, and regulate the current flowing through the LED during operation. Proposed topology has a front end converter. It is an AC-DC rectifier that works on bridgeless boost topology which shapes the input current waveform. The front end converter is followed by a DC-DC converter which provides a constant DC voltage across the LEDs. A 12V AC input is given to the input of frontend converter which rectifies and boost the voltage to 24v DC and gives it to the DC-DC converter. The DC-DC converter converts the 24V DC and regulates this constant DC voltage across the LEDs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bridgeless%20rectifier" title="bridgeless rectifier">bridgeless rectifier</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20factor%20correction%28PFC%29" title=" power factor correction(PFC)"> power factor correction(PFC)</a>, <a href="https://publications.waset.org/abstracts/search?q=SC%20converter" title=" SC converter"> SC converter</a>, <a href="https://publications.waset.org/abstracts/search?q=total%20harmonic%20distortion%20%28THD%29" title=" total harmonic distortion (THD)"> total harmonic distortion (THD)</a> </p> <a href="https://publications.waset.org/abstracts/53400/analysis-of-a-power-factor-correction-converter-for-light-emitting-diode-driver-application" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/53400.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">873</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">506</span> Ionic Liquids-Polymer Nanoparticle Systems as Breakthrough Tools to Improve the Leprosy Treatment </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Julio">A. Julio</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Caparica"> R. Caparica</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Costa%20Lima"> S. Costa Lima</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Reis"> S. Reis</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20G.%20Costa"> J. G. Costa</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Fonte"> P. Fonte</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Santos%20De%20Almeida"> T. Santos De Almeida</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Mycobacterium leprae causes a chronic and infectious disease called leprosy, which the most common symptoms are peripheral neuropathy and deformation of several parts of the body. The pharmacological treatment of leprosy is a combined therapy with three different drugs, rifampicin, clofazimine, and dapsone. However, clofazimine and dapsone have poor solubility in water and also low bioavailability. Thus, it is crucial to develop strategies to overcome such drawbacks. The use of ionic liquids (ILs) may be a strategy to overcome the low solubility since they have been used as solubility promoters. ILs are salts, liquid below 100 ºC or even at room temperature, that may be placed in water, oils or hydroalcoholic solutions. Another approach may be the encapsulation of drugs into polymeric nanoparticles, which improves their bioavailability. In this study, two different classes of ILs were used, the imidazole- and the choline-based ionic liquids, as solubility enhancers of the poorly soluble antileprotic drugs. Thus, after the solubility studies, it was developed IL-PLGA nanoparticles hybrid systems to deliver such drugs. First of all, the solubility studies of clofazimine and dapsone were performed in water and in water: IL mixtures, at ILs concentrations where cell viability is maintained, at room temperature for 72 hours. For both drugs, it was observed an improvement on the drug solubility and [Cho][Phe] showed to be the best solubility enhancer, especially for clofazimine, where it was observed a 10-fold improvement. Later, it was produced nanoparticles, with a polymeric matrix of poly(lactic-co-glycolic acid) (PLGA) 75:25, by a modified solvent-evaporation W/O/W double emulsion technique in the presence of [Cho][Phe]. Thus, the inner phase was an aqueous solution of 0.2 % (v/v) of the above IL with each drug to its maximum solubility determined on the previous study. After the production, the nanosystem hybrid was physicochemically characterized. The produced nanoparticles had a diameter of around 580 nm and 640 nm, for clofazimine and dapsone, respectively. Regarding the polydispersity index, it was in agreement of the recommended value of this parameter for drug delivery systems (around 0.3). The association efficiency (AE) of the developed hybrid nanosystems demonstrated promising AE values for both drugs, given their low solubility (64.0 ± 4.0 % for clofazimine and 58.6 ± 10.0 % for dapsone), that prospects the capacity of these delivery systems to enhance the bioavailability and loading of clofazimine and dapsone. Overall, the study achievement may signify an upgrading of the patient’s quality of life, since it may mean a change in the therapeutic scheme, not requiring doses of drug so high to obtain a therapeutic effect. The authors would like to thank Fundação para a Ciência e a Tecnologia, Portugal (FCT/MCTES (PIDDAC), UID/DTP/04567/2016-CBIOS/PRUID/BI2/2018). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ionic%20liquids" title="ionic liquids">ionic liquids</a>, <a href="https://publications.waset.org/abstracts/search?q=ionic%20liquids-PLGA%20nanoparticles%20hybrid%20systems" title=" ionic liquids-PLGA nanoparticles hybrid systems"> ionic liquids-PLGA nanoparticles hybrid systems</a>, <a href="https://publications.waset.org/abstracts/search?q=leprosy%20treatment" title=" leprosy treatment"> leprosy treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=solubility" title=" solubility"> solubility</a> </p> <a href="https://publications.waset.org/abstracts/105039/ionic-liquids-polymer-nanoparticle-systems-as-breakthrough-tools-to-improve-the-leprosy-treatment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/105039.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">150</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">505</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">504</span> Evaluation of Methodologies for Measuring Harmonics and Inter-Harmonics in Photovoltaic Facilities</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=An%C3%A9sio%20de%20Leles%20Ferreira%20Filho">Anésio de Leles Ferreira Filho</a>, <a href="https://publications.waset.org/abstracts/search?q=Wesley%20Rodrigues%20de%20Oliveira"> Wesley Rodrigues de Oliveira</a>, <a href="https://publications.waset.org/abstracts/search?q=J%C3%A9ssica%20Santoro%20Gon%C3%A7alves"> Jéssica Santoro Gonçalves</a>, <a href="https://publications.waset.org/abstracts/search?q=Jorge%20Andr%C3%A9s%20Cormane%20Angarita"> Jorge Andrés Cormane Angarita</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The increase in electric power demand in face of environmental issues has intensified the participation of renewable energy sources such as photovoltaics, in the energy matrix of various countries. Due to their operational characteristics, they can generate time-varying harmonic and inter-harmonic distortions. For this reason, the application of methods of measurement based on traditional Fourier analysis, as proposed by IEC 61000-4-7, can provide inaccurate results. Considering the aspects mentioned herein, came the idea of the development of this work which aims to present the results of a comparative evaluation between a methodology arising from the combination of the Prony method with the Kalman filter and another method based on the IEC 61000-4-30 and IEC 61000-4-7 standards. Employed in this study were synthetic signals and data acquired through measurements in a 50kWp photovoltaic installation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=harmonics" title="harmonics">harmonics</a>, <a href="https://publications.waset.org/abstracts/search?q=inter-harmonics" title=" inter-harmonics"> inter-harmonics</a>, <a href="https://publications.waset.org/abstracts/search?q=iec61000-4-7" title=" iec61000-4-7"> iec61000-4-7</a>, <a href="https://publications.waset.org/abstracts/search?q=parametric%20estimators" title=" parametric estimators"> parametric estimators</a>, <a href="https://publications.waset.org/abstracts/search?q=photovoltaic%20generation" title=" photovoltaic generation"> photovoltaic generation</a> </p> <a href="https://publications.waset.org/abstracts/31283/evaluation-of-methodologies-for-measuring-harmonics-and-inter-harmonics-in-photovoltaic-facilities" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31283.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">487</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">503</span> Investigation Particle Behavior in Gas-Solid Filtration with Electrostatic Discharge in a Hybrid System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fl%C3%A1via%20M.%20Oliveira">Flávia M. Oliveira</a>, <a href="https://publications.waset.org/abstracts/search?q=Marcos%20V.%20Rodrigues"> Marcos V. Rodrigues</a>, <a href="https://publications.waset.org/abstracts/search?q=M%C3%B4nica%20L.%20Aguiar"> Mônica L. Aguiar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Synthetic fibers are widely used in gas filtration. Previous attempts to optimize the filtration process have employed mixed fibers as the filter medium in gas-solid separation. Some of the materials most frequently used this purpose are composed of polyester, polypropylene, and glass fibers. In order to improve the retention of cement particles in bag filters, the present study investigates the use of synthetic glass fiber filters and polypropylene fiber for particle filtration, with electrostatic discharge of 0 to -2 kV in cement particles. The filtration curves obtained showed that charging increased the particle collection efficiency and lowered the pressure drop. Particle diameter had a direct influence on the formation of the dust cake, and the application of electrostatic discharge to the particles resulted in the retention of more particles, hence increasing the lifetime of fabric filters. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=glass%20fiber%20filter" title="glass fiber filter">glass fiber filter</a>, <a href="https://publications.waset.org/abstracts/search?q=particle" title=" particle"> particle</a>, <a href="https://publications.waset.org/abstracts/search?q=electrostatic%20discharge" title=" electrostatic discharge"> electrostatic discharge</a>, <a href="https://publications.waset.org/abstracts/search?q=cement" title=" cement"> cement</a> </p> <a href="https://publications.waset.org/abstracts/58308/investigation-particle-behavior-in-gas-solid-filtration-with-electrostatic-discharge-in-a-hybrid-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58308.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">389</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">502</span> An Experimental Study of Diffuser-Enhanced Propeller Hydrokinetic Turbines</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Matheus%20Nunes">Matheus Nunes</a>, <a href="https://publications.waset.org/abstracts/search?q=Rafael%20Mendes"> Rafael Mendes</a>, <a href="https://publications.waset.org/abstracts/search?q=Taygoara%20Felamingo%20Oliveira"> Taygoara Felamingo Oliveira</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonio%20Brasil%20Junior"> Antonio Brasil Junior</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Wind tunnel experiments of horizontal axis propeller hydrokinetic turbines model were carried out, in order to determine the performance behavior for different configurations and operational range. The present experiments introduce the use of two different geometries of rear diffusers to enhance the performance of the free flow machine. The present paper reports an increase of the power coefficient about 50%-80%. It represents an important feature that has to be taken into account in the design of this kind of machine. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=diffuser-enhanced%20turbines" title="diffuser-enhanced turbines">diffuser-enhanced turbines</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrokinetic%20turbine" title=" hydrokinetic turbine"> hydrokinetic turbine</a>, <a href="https://publications.waset.org/abstracts/search?q=wind%20tunnel%20experiments" title=" wind tunnel experiments"> wind tunnel experiments</a>, <a href="https://publications.waset.org/abstracts/search?q=micro%20hydro" title=" micro hydro"> micro hydro</a> </p> <a href="https://publications.waset.org/abstracts/77392/an-experimental-study-of-diffuser-enhanced-propeller-hydrokinetic-turbines" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77392.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">278</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">501</span> Effect of Gamma Irradiation on the Crystalline Structure of Poly(Vinylidene Fluoride)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Souza%20M.%20Batista">Adriana Souza M. Batista</a>, <a href="https://publications.waset.org/abstracts/search?q=Cl%C3%A1ubia%20Pereira"> Cláubia Pereira</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> The irradiation of polymeric materials has received much attention because it can produce diverse changes in chemical structure and physical properties. Thus, studying the chemical and structural changes of polymers is important in practice to achieve optimal conditions for the modification of polymers. The effect of gamma irradiation on the crystalline structure of poly(vinylidene fluoride) (PVDF) has been investigated using differential scanning calorimetry (DSC) and X-ray diffraction techniques (XRD). Gamma irradiation was carried out in atmosphere air with doses between 100 kGy at 3,000 kGy with a Co-60 source. In the melting thermogram of the samples irradiated can be seen a bimodal melting endotherm is detected with two melting temperature. The lower melting temperature is attributed to melting of crystals originally present and the higher melting peak due to melting of crystals reorganized upon heat treatment. These results are consistent with those obtained by XRD technique showing increasing crystallinity with increasing irradiation dose, although the melting latent heat is decreasing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=differential%20scanning%20calorimetry" title="differential scanning calorimetry">differential scanning calorimetry</a>, <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=PVDF" title=" PVDF"> PVDF</a>, <a href="https://publications.waset.org/abstracts/search?q=X-ray%20diffraction%20technique" title=" X-ray diffraction technique"> X-ray diffraction technique</a> </p> <a href="https://publications.waset.org/abstracts/36098/effect-of-gamma-irradiation-on-the-crystalline-structure-of-polyvinylidene-fluoride" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36098.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">401</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">500</span> Production of Polyurethane Foams from Bark Wastes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lu%C3%ADsa%20P.%20Cruz-Lopes">Luísa P. Cruz-Lopes</a>, <a href="https://publications.waset.org/abstracts/search?q=Liliana%20Rodrigues"> Liliana Rodrigues</a>, <a href="https://publications.waset.org/abstracts/search?q=Idalina%20Domingos"> Idalina Domingos</a>, <a href="https://publications.waset.org/abstracts/search?q=Jos%C3%A9%20Ferreira"> José Ferreira</a>, <a href="https://publications.waset.org/abstracts/search?q=Lu%C3%ADs%20Teixeira%20de%20Lemos"> Luís Teixeira de Lemos</a>, <a href="https://publications.waset.org/abstracts/search?q=Bruno%20Esteves"> Bruno Esteves</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Currently, the polyurethanes industry is dependent on fossil resources to obtain their basic raw materials (polyols and isocyanate), as these are obtained from petroleum products. The aim of this work was to use biopolyols from liquefied Pseudotsuga (<em>Pseudotsuga menziesii</em>) and Turkey oak (<em>Quercus cerris</em>) barks for the production of polyurethane foams and optimize the process. Liquefaction was done with glycerol catalyzed by KOH. Foams were produced following different formulations and using biopolyols from both barks. Subsequently, the foams were characterized according to their mechanical properties and the reaction of the foam formation was monitored by FTIR-ATR. The results show that it is possible to produce polyurethane foams using bio-based polyols and the liquefaction conditions are very important because they influence the characteristics of biopolyols and, consequently the characteristics of the foams. However, the process has to be further optimized so that it can obtain better quality foams. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bio-based%20polyol" title="Bio-based polyol">Bio-based polyol</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20tests" title=" mechanical tests"> mechanical tests</a>, <a href="https://publications.waset.org/abstracts/search?q=polyurethane%20foam" title=" polyurethane foam"> polyurethane foam</a>, <a href="https://publications.waset.org/abstracts/search?q=Pseudotsuga%20bark" title=" Pseudotsuga bark"> Pseudotsuga bark</a>, <a href="https://publications.waset.org/abstracts/search?q=renewable%20resources" title=" renewable resources"> renewable resources</a>, <a href="https://publications.waset.org/abstracts/search?q=Turkey%20oak%20bark" title=" Turkey oak bark"> Turkey oak bark</a> </p> <a href="https://publications.waset.org/abstracts/51260/production-of-polyurethane-foams-from-bark-wastes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51260.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">346</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">499</span> Chemical Synthesis and Microwave Sintering of SnO2-Based Nanoparticles for Varistor Films</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Glauco%20M.%20M.%20M.%20Lustosa">Glauco M. M. M. Lustosa</a>, <a href="https://publications.waset.org/abstracts/search?q=Jo%C3%A3o%20Paulo%20C.%20Costa"> João Paulo C. Costa</a>, <a href="https://publications.waset.org/abstracts/search?q=Leinig%20Ant%C3%B4nio%20Perazolli"> Leinig Antônio Perazolli</a>, <a href="https://publications.waset.org/abstracts/search?q=Maria%20Aparecida%20Zaghete"> Maria Aparecida Zaghete</a> </p> <p class="card-text"><strong>Abstract:</strong></p> SnO2 has electrical conductivity due to the excess of electrons and structural defects, being its electrical behavior highly dependent on sintering temperature and chemical composition. The addition of metals modifiers into the crystalline structure can improve and controlling the behavior of some semiconductor oxides that can therefore develop different applications such as varistors (ceramic with non-ohmic behavior between current and voltage, i.e. conductive during normal operation and resistive during overvoltage). The polymeric precursor method, based on the complexation reaction between metal ion and policarboxylic acid and then polymerized with ethylene glycol, was used to obtain nanopowders ceramic. The metal immobilization reduces its segregation during the decomposition of the polyester resulting in a crystalline oxide with high chemical homogeneity. The preparation of films from ceramics nanoparticles using electrophoretic deposition method (EPD) brings prospects for a new generation of smaller size devices with easy integration technology. EPD allows to control time and current and therefore it can have control of the thickness, surface roughness and the film density, quickly and with low production costs. The sintering process is key to control size and grain boundary density of the film. In this step, there is the diffusion of metals that promote densification and control of intrinsic defects or change these defects which will form and modify the potential barrier in the grain boundary. The use of microwave oven for sintering is an advantageous process due to the fast and homogeneous heating rate, promoting the diffusion and densification without irregular grain growth. This research was done a comparative study of sintering temperature by use of zinc as modifier agent to verify the influence on sintering step aiming to promote densification and grain growth, which influences the potential barrier formation and then changed the electrical behavior. SnO2-nanoparticles were obtained with 1 %mol of ZnO + 0.05 %mol of Nb2O5 (SZN), deposited as film through EPD (voltage 2 kV, time of 10 min) on Si/Pt substrate. Sintering was made in a microwave oven at 800, 900 and 1000 °C. For complete coverage of the substrate by nanoparticles with low surface roughness and uniform thickness was added 0.02 g of solid iodine in alcoholic suspension SnO2 to increase particle surface charge. They were also used magneto in EPD system that improved the deposition rate forming a compact film. Using a scanning electron microscope of high resolution (SEM_FEG) it was observed nanoparticles with average size between 10-20 nm, after sintering the average size was 150 to 200 nm and thickness of 5 µm. Also, it was verified that the temperature at 1000 °C was the most efficient in sintering. The best sintering time was also recorded and determined as 40 minutes. After sintering, the films were recovered with Cr3+ ions layer by EPD, then the films were again thermally treated. The electrical characterizations (nonlinear coefficient of 11.4, voltage rupture of ~60 V and leakage current = 4.8x10−6 A), allow considering the new methodology suitable for prepare SnO2-based varistor applied for development of electrical protection devices for low voltage. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chemical%20synthesis" title="chemical synthesis">chemical synthesis</a>, <a href="https://publications.waset.org/abstracts/search?q=electrophoretic%20deposition" title=" electrophoretic deposition"> electrophoretic deposition</a>, <a href="https://publications.waset.org/abstracts/search?q=microwave%20sintering" title=" microwave sintering"> microwave sintering</a>, <a href="https://publications.waset.org/abstracts/search?q=tin%20dioxide" title=" tin dioxide"> tin dioxide</a> </p> <a href="https://publications.waset.org/abstracts/53422/chemical-synthesis-and-microwave-sintering-of-sno2-based-nanoparticles-for-varistor-films" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/53422.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">272</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">498</span> “Environmental-Friendly” and “People-Friendly” Project for a New North-East Italian Hospital</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Emanuela%20Zilli">Emanuela Zilli</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonella%20Ruffatto"> Antonella Ruffatto</a>, <a href="https://publications.waset.org/abstracts/search?q=Davide%20Bonaldo"> Davide Bonaldo</a>, <a href="https://publications.waset.org/abstracts/search?q=Stefano%20Bevilacqua"> Stefano Bevilacqua</a>, <a href="https://publications.waset.org/abstracts/search?q=Tommaso%20Caputo"> Tommaso Caputo</a>, <a href="https://publications.waset.org/abstracts/search?q=Luisa%20Fontana"> Luisa Fontana</a>, <a href="https://publications.waset.org/abstracts/search?q=Carmelina%20Saraceno"> Carmelina Saraceno</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonio%20Sturaroo"> Antonio Sturaroo</a>, <a href="https://publications.waset.org/abstracts/search?q=Teodoro%20Sava"> Teodoro Sava</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonio%20Madia"> Antonio Madia</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The new Hospital in Cittadella - ULSS 6 Euganea Health Trust, in the North-East of Italy (400 beds, project completion date in 2026), will partially take the place of the existing building. Interesting features have been suggested in order to project a modern, “environmental-friendly” and “people-friendly” building. Specific multidisciplinary meetings (involving stakeholders and professionals with different backgrounds) have been organized on a periodic basis in order to guarantee the appropriate implementation of logistic and organizational solutions related to eco-sustainability, integration with the context, and the concept of “design for all” and “humanization of care.” The resulting building will be composed of organic shapes determined by the external environment (sun movement, climate, landscape, pre-existing buildings, roads) and the needs of the internal environment (areas of care and diagnostic-treatment paths reorganized with experience gained during the pandemic), with extensive use of renewable energy, solar panels, a 4th-generation heating system, sanitised and maintainable surfaces. There is particular attention to the quality of the staff areas, which include areas dedicated to psycho-physical well-being (relax points, yoga gym), study rooms, and a centralized conference room. Outdoor recreational spaces and gardens for music and watercolour therapy will be included; atai-chi gym is dedicated to oncology patients. Integration in the urban and social context is emphasized through window placement toward the gardens (maternal-infant, mental health, and rehabilitation wards). Service areas such as dialysis, radiology, and labs have views of the medieval walls, the symbol of the city’s history. The new building has been designed to pursue the maximum level of eco-sustainability, harmony with the environment, and integration with the historical, urban, and social context; the concept of humanization of care has been considered in all the phases of the project management. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=environmental-friendly" title="environmental-friendly">environmental-friendly</a>, <a href="https://publications.waset.org/abstracts/search?q=humanization" title=" humanization"> humanization</a>, <a href="https://publications.waset.org/abstracts/search?q=eco-sustainability" title=" eco-sustainability"> eco-sustainability</a>, <a href="https://publications.waset.org/abstracts/search?q=new%20hospital" title=" new hospital"> new hospital</a> </p> <a href="https://publications.waset.org/abstracts/155362/environmental-friendly-and-people-friendly-project-for-a-new-north-east-italian-hospital" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/155362.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">118</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">497</span> Learning Object Interface Adapted to the Learner's Learning Style</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zenaide%20Carvalho%20da%20Silva">Zenaide Carvalho da Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Leandro%20Rodrigues%20Ferreira"> Leandro Rodrigues Ferreira</a>, <a href="https://publications.waset.org/abstracts/search?q=Andrey%20Ricardo%20Pimentel"> Andrey Ricardo Pimentel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Learning styles (LS) refer to the ways and forms that the student prefers to learn in the teaching and learning process. Each student has their own way of receiving and processing information throughout the learning process. Therefore, knowing their LS is important to better understand their individual learning preferences, and also, understand why the use of some teaching methods and techniques give better results with some students, while others it does not. We believe that knowledge of these styles enables the possibility of making propositions for teaching; thus, reorganizing teaching methods and techniques in order to allow learning that is adapted to the individual needs of the student. Adapting learning would be possible through the creation of online educational resources adapted to the style of the student. In this context, this article presents the structure of a learning object interface adaptation based on the LS. The structure created should enable the creation of the adapted learning object according to the student's LS and contributes to the increase of student’s motivation in the use of a learning object as an educational resource. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=adaptation" title="adaptation">adaptation</a>, <a href="https://publications.waset.org/abstracts/search?q=interface" title=" interface"> interface</a>, <a href="https://publications.waset.org/abstracts/search?q=learning%20object" title=" learning object"> learning object</a>, <a href="https://publications.waset.org/abstracts/search?q=learning%20style" title=" learning style"> learning style</a> </p> <a href="https://publications.waset.org/abstracts/67882/learning-object-interface-adapted-to-the-learners-learning-style" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/67882.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">406</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">496</span> Device to Alert and Fire Prevention through Temperature Monitoring and Gas Detection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=D%C3%AAivisson%20Alves%20Anjos">Dêivisson Alves Anjos</a>, <a href="https://publications.waset.org/abstracts/search?q=Blenda%20Fonseca%20Aires%20Teles"> Blenda Fonseca Aires Teles</a>, <a href="https://publications.waset.org/abstracts/search?q=Queitiane%20Castro%20Costa"> Queitiane Castro Costa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fire is one of the biggest dangers for factories, warehouses, mills, among other places, causing unimaginable damage, because besides the material damage also directly affects the lives of workers who are likely to suffer death or very serious consequences. This protection of the lives of these people should be taken seriously, always seeking safety. Thus investment in security and monitoring equipment must be high, so you can prevent or reduce the impacts of a possible fire. Our device, made in PIC micro controller monitors the temperature and the presence of gas in the environment, it sends the data via Bluetooth device to a developed in LabVIEW interface saves these data continuously and alert if the temperature exceeds the allowed or some gas is detected. Currently the device is in operation and can perform several tests, as well as use in different areas for which you need anti-fire protection. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pic" title="pic">pic</a>, <a href="https://publications.waset.org/abstracts/search?q=bluetooth" title=" bluetooth"> bluetooth</a>, <a href="https://publications.waset.org/abstracts/search?q=fire" title=" fire"> fire</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature" title=" temperature"> temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=gas" title=" gas"> gas</a>, <a href="https://publications.waset.org/abstracts/search?q=LabVIEW" title=" LabVIEW"> LabVIEW</a> </p> <a href="https://publications.waset.org/abstracts/20892/device-to-alert-and-fire-prevention-through-temperature-monitoring-and-gas-detection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20892.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">532</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">495</span> Effect of the Accelerated Carbonation in Fibercement Composites Reinforced with Eucalyptus Pulp and Nanofibrillated Cellulose</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Viviane%20da%20Costa%20Correia">Viviane da Costa Correia</a>, <a href="https://publications.waset.org/abstracts/search?q=Sergio%20Francisco%20Santos"> Sergio Francisco Santos</a>, <a href="https://publications.waset.org/abstracts/search?q=Holmer%20Savastano%20Junior"> Holmer Savastano Junior</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The main purpose of this work was verify the influence of the accelerated carbonation in the physical and mechanical properties of the hybrid composites, reinforced with micro and nanofibers and composites with microfibers. The composites were produced by the slurry vacuum dewatering method, followed by pressing. It was produced using two formulations: 8% of eucalyptus pulp + 1% of the nanofibrillated cellulose and 9% of eucalyptus pulp, both were subjected to accelerated carbonation. The results showed that the accelerated carbonation contributed to improve the physical and mechanical properties of the hybrid composites and of the composites reinforced with microfibers (eucalyptus pulp). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=carbonation" title="carbonation">carbonation</a>, <a href="https://publications.waset.org/abstracts/search?q=cement%20composites" title=" cement composites"> cement composites</a>, <a href="https://publications.waset.org/abstracts/search?q=nanofibrillated%20cellulose" title=" nanofibrillated cellulose"> nanofibrillated cellulose</a>, <a href="https://publications.waset.org/abstracts/search?q=eucalyptus%20pulp" title=" eucalyptus pulp"> eucalyptus pulp</a> </p> <a href="https://publications.waset.org/abstracts/14125/effect-of-the-accelerated-carbonation-in-fibercement-composites-reinforced-with-eucalyptus-pulp-and-nanofibrillated-cellulose" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14125.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">337</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">494</span> A Versatile Algorithm to Propose Optimized Solutions to the Dengue Disease Problem</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fernando%20L.%20P.%20Santos">Fernando L. P. Santos</a>, <a href="https://publications.waset.org/abstracts/search?q=Luiz%20G.%20Lyra"> Luiz G. Lyra</a>, <a href="https://publications.waset.org/abstracts/search?q=Helenice%20O.%20Florentino"> Helenice O. Florentino</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniela%20R.%20Cantane"> Daniela R. Cantane</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Dengue is a febrile infectious disease caused by a virus of the family Flaviridae. It is transmitted by the bite of mosquitoes, usually of the genus Aedes aegypti. It occurs in tropical and subtropical areas of the world. This disease has been a major public health problem worldwide, especially in tropical countries such as Brazil, and its incidence has increased in recent years. Dengue is a subject of intense research. Efficient forms of mosquito control must be considered. In this work, the mono-objective optimal control problem was solved for analysing the dengue disease problem. Chemical and biological controls were considered in the mathematical aspect. This model describes the dynamics of mosquitoes in water and winged phases. We applied the genetic algorithms (GA) to obtain optimal strategies for the control of dengue. Numerical simulations have been performed to verify the versatility and the applicability of this algorithm. On the basis of the present results we may recommend the GA to solve optimal control problem with a large region of feasibility. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=genetic%20algorithm" title="genetic algorithm">genetic algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=dengue" title=" dengue"> dengue</a>, <a href="https://publications.waset.org/abstracts/search?q=Aedes%20aegypti" title=" Aedes aegypti"> Aedes aegypti</a>, <a href="https://publications.waset.org/abstracts/search?q=biological%20control" title=" biological control"> biological control</a>, <a href="https://publications.waset.org/abstracts/search?q=chemical%20control" title=" chemical control"> chemical control</a> </p> <a href="https://publications.waset.org/abstracts/15232/a-versatile-algorithm-to-propose-optimized-solutions-to-the-dengue-disease-problem" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15232.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">349</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">493</span> Hydrochemical Contamination Profiling and Spatial-Temporal Mapping with the Support of Multivariate and Cluster Statistical Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sofia%20Barbosa">Sofia Barbosa</a>, <a href="https://publications.waset.org/abstracts/search?q=Mariana%20Pinto"> Mariana Pinto</a>, <a href="https://publications.waset.org/abstracts/search?q=Jos%C3%A9%20Ant%C3%B3nio%20Almeida"> José António Almeida</a>, <a href="https://publications.waset.org/abstracts/search?q=Edgar%20Carvalho"> Edgar Carvalho</a>, <a href="https://publications.waset.org/abstracts/search?q=Catarina%20Diamantino"> Catarina Diamantino</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this work was to test a methodology able to generate spatial-temporal maps that can synthesize simultaneously the trends of distinct hydrochemical indicators in an old radium-uranium tailings dam deposit. Multidimensionality reduction derived from principal component analysis and subsequent data aggregation derived from clustering analysis allow to identify distinct hydrochemical behavioural profiles and to generate synthetic evolutionary hydrochemical maps. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Contamination%20plume%20migration" title="Contamination plume migration">Contamination plume migration</a>, <a href="https://publications.waset.org/abstracts/search?q=K-means%20of%20PCA%20scores" title=" K-means of PCA scores"> K-means of PCA scores</a>, <a href="https://publications.waset.org/abstracts/search?q=groundwater%20and%20mine%20water%20monitoring" title=" groundwater and mine water monitoring"> groundwater and mine water monitoring</a>, <a href="https://publications.waset.org/abstracts/search?q=spatial-temporal%20hydrochemical%20trends" title=" spatial-temporal hydrochemical trends"> spatial-temporal hydrochemical trends</a> </p> <a href="https://publications.waset.org/abstracts/139590/hydrochemical-contamination-profiling-and-spatial-temporal-mapping-with-the-support-of-multivariate-and-cluster-statistical-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/139590.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">235</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">492</span> Characterization of Gamma Irradiated PVDF and PVDF/Graphene Oxide Composites by Spectroscopic Techniques</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> The combination of the properties of graphene oxide (OG) and PVDF homopolymer makes their combined composite materials as multifunctional systems with great potential. Knowledge of the molecular structure is essential for better use. In this work, the degradation of PVDF polymer exposed to gamma irradiation in oxygen atmosphere in high dose rate has been studied and compared to degradation of PVDF/OG composites. The samples were irradiated with a Co-60 source at constant dose rate, with doses ranging from 100 kGy to 1,000 kGy. In FTIR data shown that the formation of oxidation products was at the both samples with formation of carbonyl and hydroxyl groups amongst the most prevalent products in the pure PVDF samples. In the other hand, the composites samples exhibit less presence of degradation products with predominant formation of carbonyl groups, these results also seen in the UV-Vis analysis. The results show that the samples of composites may have greater resistance to the irradiation process, since they have less degradation products than pure PVDF samples seen by spectroscopic techniques. <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=PVDF" title=" PVDF"> PVDF</a>, <a href="https://publications.waset.org/abstracts/search?q=PVDF%2FOG%20composites" title=" PVDF/OG composites"> PVDF/OG composites</a>, <a href="https://publications.waset.org/abstracts/search?q=spectroscopic%20techniques" title=" spectroscopic techniques"> spectroscopic techniques</a> </p> <a href="https://publications.waset.org/abstracts/36096/characterization-of-gamma-irradiated-pvdf-and-pvdfgraphene-oxide-composites-by-spectroscopic-techniques" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36096.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">571</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">491</span> The Influence of Republican Culture in the Professional Education Reforms in Brazil (1892-1930)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Milene%20Magalh%C3%A3es%20Pinto">Milene Magalhães Pinto</a>, <a href="https://publications.waset.org/abstracts/search?q=Irlen%20Ant%C3%B4nio%20Gon%C3%A7alves"> Irlen Antônio Gonçalves</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper is within the area of History of Education in Brazil, having a descriptive and exploratory nature. It has been built on the belief that professional education is organized under political guidelines and solidifies through institutionalized discourses, allowing to know its mission concerning the society in which it operates by studying these speeches. Our purpose is to analyze how the Republican political culture yielded changes in public education through reforms to professional education in the First Republic, based on seven procedures of law that occurred in the Legislature of State of Minas Gerais. The Republican effort to reform the teaching was the result of a conception of society that aspired to advance the country by way of the national worker. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=professional%20education" title="professional education">professional education</a>, <a href="https://publications.waset.org/abstracts/search?q=republican%20political%20culture" title=" republican political culture"> republican political culture</a>, <a href="https://publications.waset.org/abstracts/search?q=education%20reforms" title=" education reforms"> education reforms</a>, <a href="https://publications.waset.org/abstracts/search?q=Brazil" title=" Brazil"> Brazil</a> </p> <a href="https://publications.waset.org/abstracts/18347/the-influence-of-republican-culture-in-the-professional-education-reforms-in-brazil-1892-1930" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18347.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">495</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">490</span> The Environmental Benefits of the Adoption of Emission Control for Locomotives in Brazil</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rui%20de%20Abrantes">Rui de Abrantes</a>, <a href="https://publications.waset.org/abstracts/search?q=Andr%C3%A9%20Luiz%20Silva%20Forcetto"> André Luiz Silva Forcetto</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Air pollution is a big problem in many cities around the world. Brazilian big cities also have this problem, where millions of people are exposed daily to pollutants levels above the recommended by WHO. Brazil has taken several actions to reduce air pollution, among others, controlling the atmospheric emissions from vehicles, non-road mobile machinery, and motorcycles, but on the other side, there are no emissions controls for locomotives, which are exposing the population to tons of pollutants annually. The rail network is not homogeneously distributed in the national territory; it is denser near the big cities, and this way, the population is more exposed to pollutants; apart from that, the government intends to increase the rail network as one of the strategies for greenhouse gas mitigation, complying with the international agreements against the climate changes. This paper initially presents the estimated emissions from locomotive fleets with no emission control and with emission control equivalent to US Tier 3 from 2028 and for the next 20 years. However, we realized that a program equivalent to phase Tier 3 would not be effective, so we proposed a program in two steps that will avoid the release of more than 2.4 million tons of CO and 531,000 tons of hydrocarbons, 3.7 million tons of nitrogen oxides, and 102,000 tons of particulate matter in 20 years. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=locomotives" title="locomotives">locomotives</a>, <a href="https://publications.waset.org/abstracts/search?q=emission%20control" title=" emission control"> emission control</a>, <a href="https://publications.waset.org/abstracts/search?q=air%20pollution" title=" air pollution"> air pollution</a>, <a href="https://publications.waset.org/abstracts/search?q=pollutants%20emission" title=" pollutants emission"> pollutants emission</a> </p> <a href="https://publications.waset.org/abstracts/182216/the-environmental-benefits-of-the-adoption-of-emission-control-for-locomotives-in-brazil" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/182216.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">49</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">489</span> The Use of Online Courses as a Tool for Teaching in Education for Youth and Adults</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Elineuda%20Do%20Socorro%20Santos%20Pican%C3%A7o%20Sousa">Elineuda Do Socorro Santos Picanço Sousa</a>, <a href="https://publications.waset.org/abstracts/search?q=Ana%20Kerlly%20Souza%20da%20Costa"> Ana Kerlly Souza da Costa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents the analysis of the information society as a plural, inclusive and participatory society, where it is necessary to give all citizens, especially young people, the right skills in order to develop skills so that they can understand and use information through of contemporary technologies; well as carry out a critical analysis, using and producing information and all sorts of messages and / or informational language codes. This conviction inspired this article, whose aim is to present current trends in the use of technology in distance education applied as an alternative and / or supplement to classroom teaching for Youth and Adults, concepts and actions, seeking to contribute to its development in the state of Amapá and specifically, the Center for Professional of Amapá Teaching Professor Josinete Oliveira Barroso - CEPAJOB. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=youth%20and%20adults%20education" title="youth and adults education">youth and adults education</a>, <a href="https://publications.waset.org/abstracts/search?q=Ead.%20Professional%20Education" title=" Ead. Professional Education"> Ead. Professional Education</a>, <a href="https://publications.waset.org/abstracts/search?q=online%20courses" title=" online courses"> online courses</a>, <a href="https://publications.waset.org/abstracts/search?q=CEPAJOB" title=" CEPAJOB"> CEPAJOB</a> </p> <a href="https://publications.waset.org/abstracts/20907/the-use-of-online-courses-as-a-tool-for-teaching-in-education-for-youth-and-adults" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20907.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">642</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">488</span> A Method for Reduction of Association Rules in Data Mining</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Diego%20De%20Castro%20Rodrigues">Diego De Castro Rodrigues</a>, <a href="https://publications.waset.org/abstracts/search?q=Marcelo%20Lisboa%20Rocha"> Marcelo Lisboa Rocha</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniela%20M.%20De%20Q.%20Trevisan"> Daniela M. De Q. Trevisan</a>, <a href="https://publications.waset.org/abstracts/search?q=Marcos%20Dias%20Da%20Conceicao"> Marcos Dias Da Conceicao</a>, <a href="https://publications.waset.org/abstracts/search?q=Gabriel%20Rosa"> Gabriel Rosa</a>, <a href="https://publications.waset.org/abstracts/search?q=Rommel%20M.%20Barbosa"> Rommel M. Barbosa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The use of association rules algorithms within data mining is recognized as being of great value in the knowledge discovery in databases. Very often, the number of rules generated is high, sometimes even in databases with small volume, so the success in the analysis of results can be hampered by this quantity. The purpose of this research is to present a method for reducing the quantity of rules generated with association algorithms. Therefore, a computational algorithm was developed with the use of a Weka Application Programming Interface, which allows the execution of the method on different types of databases. After the development, tests were carried out on three types of databases: synthetic, model, and real. Efficient results were obtained in reducing the number of rules, where the worst case presented a gain of more than 50%, considering the concepts of support, confidence, and lift as measures. This study concluded that the proposed model is feasible and quite interesting, contributing to the analysis of the results of association rules generated from the use of algorithms. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=data%20mining" title="data mining">data mining</a>, <a href="https://publications.waset.org/abstracts/search?q=association%20rules" title=" association rules"> association rules</a>, <a href="https://publications.waset.org/abstracts/search?q=rules%20reduction" title=" rules reduction"> rules reduction</a>, <a href="https://publications.waset.org/abstracts/search?q=artificial%20intelligence" title=" artificial intelligence"> artificial intelligence</a> </p> <a href="https://publications.waset.org/abstracts/110517/a-method-for-reduction-of-association-rules-in-data-mining" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/110517.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">161</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">487</span> Artificial Neural Networks and Geographic Information Systems for Coastal Erosion Prediction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Angeliki%20Peponi">Angeliki Peponi</a>, <a href="https://publications.waset.org/abstracts/search?q=Paulo%20Morgado"> Paulo Morgado</a>, <a href="https://publications.waset.org/abstracts/search?q=Jorge%20Trindade"> Jorge Trindade</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Artificial Neural Networks (ANNs) and Geographic Information Systems (GIS) are applied as a robust tool for modeling and forecasting the erosion changes in Costa Caparica, Lisbon, Portugal, for 2021. ANNs present noteworthy advantages compared with other methods used for prediction and decision making in urban coastal areas. Multilayer perceptron type of ANNs was used. Sensitivity analysis was conducted on natural and social forces and dynamic relations in the dune-beach system of the study area. Variations in network’s parameters were performed in order to select the optimum topology of the network. The developed methodology appears fitted to reality; however further steps would make it better suited. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=artificial%20neural%20networks" title="artificial neural networks">artificial neural networks</a>, <a href="https://publications.waset.org/abstracts/search?q=backpropagation" title=" backpropagation"> backpropagation</a>, <a href="https://publications.waset.org/abstracts/search?q=coastal%20urban%20zones" title=" coastal urban zones"> coastal urban zones</a>, <a href="https://publications.waset.org/abstracts/search?q=erosion%20prediction" title=" erosion prediction"> erosion prediction</a> </p> <a href="https://publications.waset.org/abstracts/84741/artificial-neural-networks-and-geographic-information-systems-for-coastal-erosion-prediction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/84741.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">392</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">486</span> Entrepreneurial Predisposition and Intention of Students from the IFRN – Mossoró, Brazil</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Giovane%20Gurgel">Giovane Gurgel</a>, <a href="https://publications.waset.org/abstracts/search?q=Cristina%20S.%20Rodrigues"> Cristina S. Rodrigues</a>, <a href="https://publications.waset.org/abstracts/search?q=Filipa%20D.%20Vieira"> Filipa D. Vieira</a> </p> <p class="card-text"><strong>Abstract:</strong></p> IFRN – Mossoró is a Brazilian technical education institute that develops several activities to encourage entrepreneurship, such as a curricular discipline about enterprise management and the existence of a business incubator. Despite efforts, the business incubator does not produce the expected effects. Therefore, what predisposes students to start their own business? If literature review explores determinant factors like the family and personal characteristics, it can be sustained that entrepreneurship skills can be taught since primary level, until university level. This paper presents the results of research project “Empreende IFRN” to understand the entrepreneurial predisposition and intention of the students from technical level courses. Data from 365 students from technical level courses reveal an increased entrepreneurial intention of students during time (from a 2 years period to someday in the future). The entrepreneurial behaviour of parents affects students’ perception about starting their own business. Students also present a cautions behaviour, preferring bank deposit and investment fund instead starting a business. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Brazil" title="Brazil">Brazil</a>, <a href="https://publications.waset.org/abstracts/search?q=entrepreneurial%20intention" title=" entrepreneurial intention"> entrepreneurial intention</a>, <a href="https://publications.waset.org/abstracts/search?q=entrepreneurship" title=" entrepreneurship"> entrepreneurship</a>, <a href="https://publications.waset.org/abstracts/search?q=secondary%20technical%20students" title=" secondary technical students"> secondary technical students</a> </p> <a href="https://publications.waset.org/abstracts/7860/entrepreneurial-predisposition-and-intention-of-students-from-the-ifrn-mossoro-brazil" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/7860.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">283</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">485</span> Bowen Ratio in Western São Paulo State, Brazil</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Elaine%20Cristina%20Barboza">Elaine Cristina Barboza</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonio%20Jaschke%20Machado"> Antonio Jaschke Machado</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper discusses micrometeorological aspects of the urban climate in three cities in Western São Paulo State: Presidente Prudente, Assis, and Iepê. Particular attention is paid to the method used to estimate the components of the energy balance at the surface. Estimates of convective fluxes showed that the Bowen ratio was an indicator of the local climate and that its magnitude varied between 0.3 and 0.7. Maximum values for the Bowen ratio occurred earlier in Iepê (11:00 am) than in Presidente Prudente (4:00 pm). The results indicate that the Bowen ratio is modulated by the radiation balance at the surface and by different clusters of vegetation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bowen%20ratio" title="Bowen ratio">Bowen ratio</a>, <a href="https://publications.waset.org/abstracts/search?q=medium-sized%20cities" title=" medium-sized cities"> medium-sized cities</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20energy%20balance" title=" surface energy balance"> surface energy balance</a>, <a href="https://publications.waset.org/abstracts/search?q=urban%20climate" title=" urban climate"> urban climate</a> </p> <a href="https://publications.waset.org/abstracts/29606/bowen-ratio-in-western-sao-paulo-state-brazil" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29606.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">602</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">484</span> Quick Sequential Search Algorithm Used to Decode High-Frequency Matrices</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20M.%20Siddeq">Mohammed M. Siddeq</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20H.%20Rasheed"> Mohammed H. Rasheed</a>, <a href="https://publications.waset.org/abstracts/search?q=Omar%20M.%20Salih"> Omar M. Salih</a>, <a href="https://publications.waset.org/abstracts/search?q=Marcos%20A.%20Rodrigues"> Marcos A. Rodrigues</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research proposes a data encoding and decoding method based on the Matrix Minimization algorithm. This algorithm is applied to high-frequency coefficients for compression/encoding. The algorithm starts by converting every three coefficients to a single value; this is accomplished based on three different keys. The decoding/decompression uses a search method called QSS (Quick Sequential Search) Decoding Algorithm presented in this research based on the sequential search to recover the exact coefficients. In the next step, the decoded data are saved in an auxiliary array. The basic idea behind the auxiliary array is to save all possible decoded coefficients; this is because another algorithm, such as conventional sequential search, could retrieve encoded/compressed data independently from the proposed algorithm. The experimental results showed that our proposed decoding algorithm retrieves original data faster than conventional sequential search algorithms. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=matrix%20minimization%20algorithm" title="matrix minimization algorithm">matrix minimization algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=decoding%20sequential%20search%20algorithm" title=" decoding sequential search algorithm"> decoding sequential search algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=image%20compression" title=" image compression"> image compression</a>, <a href="https://publications.waset.org/abstracts/search?q=DCT" title=" DCT"> DCT</a>, <a href="https://publications.waset.org/abstracts/search?q=DWT" title=" DWT"> DWT</a> </p> <a href="https://publications.waset.org/abstracts/151394/quick-sequential-search-algorithm-used-to-decode-high-frequency-matrices" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/151394.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">150</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">483</span> The Validity of a Literature Review Rubric in the Ecuadorian Context</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Francisco%20Bola%C3%B1os-Burgos">Francisco Bolaños-Burgos</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonio%20Cevallos%20Gamboa"> Antonio Cevallos Gamboa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this paper is to evaluate the validity of a literature review rubric in the Ecuadorian context at the graduate level. The sample was composed of 73 students of the online and on-site study format in the years 2015-2016. The instrument has 20 items (α=0.974) ranked in a 5-point Likert scale with six dimensions. The validity analysis was made by experts´ criterion. Findings evidenced that there is no significance difference between grades based on the study formats and that women write better than men. Furthermore, the students lacked to describe the limitation of their research and are good in writing: the research topic of the abstract, the conclusion in terms of the research objective and the citation norms (APA). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=literature%20review" title="literature review">literature review</a>, <a href="https://publications.waset.org/abstracts/search?q=rubric" title=" rubric"> rubric</a>, <a href="https://publications.waset.org/abstracts/search?q=validity" title=" validity"> validity</a>, <a href="https://publications.waset.org/abstracts/search?q=Ecuadorian%20context" title=" Ecuadorian context"> Ecuadorian context</a>, <a href="https://publications.waset.org/abstracts/search?q=graduate%20level" title=" graduate level"> graduate level</a> </p> <a href="https://publications.waset.org/abstracts/58742/the-validity-of-a-literature-review-rubric-in-the-ecuadorian-context" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58742.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">262</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">482</span> Podemos Party Origin: From Social Protest to Spanish Parliament</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=V%C3%ADctor%20Manuel%20Mu%C3%B1oz-S%C3%A1nchez">Víctor Manuel Muñoz-Sánchez</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonio%20Manuel%20P%C3%A9rez-Flores"> Antonio Manuel Pérez-Flores</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper analyzes the institutionalization of social protest in Spain. In the current crisis Podemos party seems to represent the political positions of the most affected citizens by the economic situation. It studies using quantitative techniques (statistical bivariate analysis), focusing on the exploitation of several bases of statistics data from the Center for Sociological and Research of Spanish Government, 15M movement characterization to its institutionalization in the Podemos party. Making a comparison between the participant's profile by the 15M and the social bases of Podemos votes. Data on the transformation of the socio-demographic profile of the fans, connoisseurs and 15M participants and voters are given. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=collective%20action" title="collective action">collective action</a>, <a href="https://publications.waset.org/abstracts/search?q=emerging%20parties" title=" emerging parties"> emerging parties</a>, <a href="https://publications.waset.org/abstracts/search?q=political%20parties" title=" political parties"> political parties</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20protest" title=" social protest"> social protest</a> </p> <a href="https://publications.waset.org/abstracts/40320/podemos-party-origin-from-social-protest-to-spanish-parliament" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/40320.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">386</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">481</span> PTSD in Peacekeepers: A Systematic Review</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Laura%20Rodrigues%20Carmona">Laura Rodrigues Carmona</a>, <a href="https://publications.waset.org/abstracts/search?q=Maria%20Jos%C3%A9%20Chambel"> Maria José Chambel</a>, <a href="https://publications.waset.org/abstracts/search?q=V%C3%A2nia%20Sofia%20Carvalho"> Vânia Sofia Carvalho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: In peacekeeping operations, military personnel are often exposed to the same traumatic stress factors found during conventional war and may also be subject to the physical risks and psychological stressors associated with posttraumatic stress disorder (PTSD). Objectives: To discuss the prevalence of PTSD among peacekeepers as well as the risks of and protective factors against this disorder and its comorbidities and/or consequences. Methods: A systematic literature search was performed with relevant keywords, and 53 articles were identified for this review. Results and conclusions: Military personnel deployed in peacekeeping operations have a higher prevalence of PTSD than nonmilitary personnel, a prevalence similar to that of military personnel deployed in war situations. Concerning the salient risk factors, the contextual factors are highlighted, and in regard to the protective factors, the individual factors are highlighted. This study thus demonstrates that there are factors in which the role of the military is essential, via both its selection and monitoring of peacekeepers during and after their deployment, to protect deployed personnel’s mental health. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=peacekeepers" title="peacekeepers">peacekeepers</a>, <a href="https://publications.waset.org/abstracts/search?q=peacekeeping" title=" peacekeeping"> peacekeeping</a>, <a href="https://publications.waset.org/abstracts/search?q=military" title=" military"> military</a>, <a href="https://publications.waset.org/abstracts/search?q=PTSD" title=" PTSD"> PTSD</a>, <a href="https://publications.waset.org/abstracts/search?q=post-traumatic%20stress%20disorder" title=" post-traumatic stress disorder"> post-traumatic stress disorder</a>, <a href="https://publications.waset.org/abstracts/search?q=posttraumatic%20stress%20disorder" title=" posttraumatic stress disorder"> posttraumatic stress disorder</a> </p> <a href="https://publications.waset.org/abstracts/171904/ptsd-in-peacekeepers-a-systematic-review" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/171904.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">86</span> </span> </div> </div> <ul class="pagination"> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Luiz%20Antonio%20Da%20Costa%20Rodrigues&page=3" rel="prev">&lsaquo;</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Luiz%20Antonio%20Da%20Costa%20Rodrigues&page=1">1</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Luiz%20Antonio%20Da%20Costa%20Rodrigues&page=2">2</a></li> <li class="page-item"><a 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