http://ijaers.com/ Open Access international Journal to publish research paper en-us March 2019 This article aims to map and analyze the scientific productions about mobile learning, found in theses and dissertations registered in the Coordination for the Improvement of Higher Education Personnel (CAPES). The present research is characterized as a quantitative, retrospective and documentary study. It was used as a criterion, to present in any part of the abstract or text, the descriptor mobile learning, and to be published between 2014 and 2017. The results found allowed to visualize the academic production of theses and dissertations on the mobile learning in Brazil in recent years. http://ijaers.com/detail/production-of-dissertations-and-theses-on-mobile-learning-in-brazilian-postgraduate-courses/ Ernane Rosa Martins, Luís Manuel Borges Gouveia http://ijaers.com/uploads/issue_files/1-IJAERS-FEB-2019-37-Productionof.pdf The objective of this study is to evaluate the volatility rate of sharia-company in Malaysia Stock Exchange using Monte Carlo Simulation (MCS). This study collected daily stock price form Thomson Reuters Datastream for calculating monthly return and volatility rate. In validating the findings of volatility rate, this study performed normality diagnostics test, and Monte Carlo Simulation (MCS). Result indicates the distribution of volatility rate is follows normal distribution. In addition, Monte Carlo Simulation also proved the volatility rate is 4.85% and standard deviation is 2.23. Result of process capability shows the value of volatility rate is under statistical control with implementation on Monte Carlo Simulation. The significant of this study is it provides a better understanding for investors regarding the financial environment in Malaysia Stock Exchange. This information will help investors to make proper selection of their investment portfolio. http://ijaers.com/detail/monte-carlo-simulation-for-data-volatility-analysis-of-stock-prices-in-islamic-finance-for-malaysia-composite-index/ Nashirah Abu Bakar, Sofian Rosbi http://ijaers.com/uploads/issue_files/2-IJAERS-FEB-2019-42-MonteCarlo.pdf Finding optimal node deployment for a Wireless Sensor Network (WSN), while maximizing both coverage and connectivity as well as minimizing costs is a challenging task. In the considered scenario, coverage and connectivity are used as QoS (Quality of Service) measures for the desired wireless sensor network. In this case, the problem was handled as a multi-objective optimization problem. In this paper, we propose a hybrid optimization algorithm (GA-BPSO) based on Genetic Algorithm (GA) and Binary Particle Swarm Optimization (BPSO). In order to show the effectiveness of the proposed algorithm, we present some simulations and comparisons with existing methods in the literature. http://ijaers.com/detail/a-hybrid-algorithm-for-deployment-of-sensors-with-coverage-and-connectivity-constraints/ Timóteo Holanda, Tiago Almeida, Paulo Cleber M. Teixeira, Anna Paula de S. P. Rodrigues, Rafael Lima http://ijaers.com/uploads/issue_files/3-IJAERS-FEB-2019-39-AhybridAlgorithm.pdf This project will present an application focused on the teaching of the English language to the children, this application being an important teaching tool, where the child can begin a cycle of learning a new language, something that will be very important in their training academic, and will serve in your professional future. In addition to showing how software is being developed and the resources used in it, this project is also concerned with presenting concepts such as: foreign language learning for children, voice recognition and synthesis, intelligent systems capable of recognizing and synthesizing the voice and the Java API Speech. To aid in English studies, the application makes use of illustrative images, themes, interactive questions, training mode, speech recognition and synthesis, which contributes to the development of writing and pronunciation in the language, mainly for making use of the resources of voice, which are the strongest point of this tool. http://ijaers.com/detail/application-focused-on-english-language-teaching-for-children-with-speech-recognition-and-synthesizing-capabilities/ Davi Samuel Maia Dias, Ricardo Silva Parente, Vanessa Levy, Antônio Estanislau Sanches, Jorge de Almeida Brito Júnior, Manoel Henrique Reis Nascimento http://ijaers.com/uploads/issue_files/4-IJAERS-FEB-2019-44-ApplicationFocused.pdf This work presents the design of three controllers, the H infinity controller with output feedback, the PID controller and the Fuzzy controller applied to a Stewart platform. The actuator model was obtained by a step voltage input to the electric motor and measuring its displacement by the encoders coupled, in each of the respective axes of the motors. The motion transmission relation mechanism between the motor shaft and each actuator is obtained by the displacement spindle from the rotation of motor which are measured by the corresponding encoder. The kinematics and dynamics platform’s data compose the whole systems models. Several experiments were carried out on the real Stewart platform with the help of an XsensMTi-G inertial sensor to measure the Platform Euler angles. The experimental results obtained by the three controllers were satisfactory in position control and orientation of the Stewart platform. http://ijaers.com/detail/a-comparative-analysis-of-pid-fuzzy-and-h-infinity-controllers-applied-to-a-stewart-platform/ Ricardo Breganon, Marcio A.F. Montezuma, Mateus M. de Souza, Rodrigo C. Lemes, Eduardo M. Belo http://ijaers.com/uploads/issue_files/5-IJAERS-MAR-2019-3-AComparative.pdf Vehicle Operational Cost (VOC) of goods/material transportation greatly affects the delivery cost and the determination of destination basic price especially in Puruk Cahu. VOC must satisfy the requirements by calculating actual production cost, which issued by the owner of the transportation, to be government’s foundation as the regulator of official fare transportation and unit price of building material in the future. This research analyze the amount of Vehicle Operational Cost (VOC) for truck to bring the building material from Banjarmasin - Puruk Cahu with conventional method, obtains ideal fare based on VOC calculation from the transportation owner in order to pay the production cost, and analyze how big is the influence of VOC upon the increasing of material building price in Puruk Cahu. Based on the discussion, several conclusions are obtained, such as VOC of Banjarmasin - Puruk Cahu route for building material transportation especially iron reinforcement material and cement are in amount of around Rp. 8.744,31 /km and Rp. 891,14 /ton.km. Building material transportation fare based on actual calculation from the sample profil obtains minimum transportation material fare in which Rp. 8.100,00 /km and Rp. 840,00 /ton.km with minimum weight 9 ton, meanwhile, the maximum transportation fare is in amount of Rp. 10.450,00 /km and Rp. 1000,00 /ton.km with 11 ton capacity. In addition, the average of transportation fare is in amount of Rp.8.848,44 /km and Rp. 902,81 /ton.km with the average transport 9,81 ton. Hence, it can be concluded that the existing material transportation fare is a little bit higher than the VOC calculation fare result for Rp./km and Rp./ton.km unit. Furthermore, the influence of the increasing of VOC fare for iron reinforcement material is in amount of 96,93% and portland cement in amount of 94,63% and the rest 3,07% for iron reinforcement material and 5,37% for portland cement are affected by other factors. http://ijaers.com/detail/the-influence-of-vehicle-operational-cost-on-building-material-fare-and-basic-price-case-study-of-banjarmasin-puruk-cahu-route/ Syahirul Alim, Mahmud, Muhammad Arsyad http://ijaers.com/uploads/issue_files/6-IJAERS-MAR-2019-1-The Influence.pdf Soccer is an exponent of Brazilian culture and identity, being discussed and analyzed in the most varied areas and segments of the academic world. In this sense, this work aims to measure and analyze the scientific production produced on the subject. The Scopus Platform, which is the largest database of scientific reference documents in the world, has been chosen to fulfill the proposed objective. In his theoretical framework, the work presents concepts about bibliometry, with the contribution of Rodrigues et al. (2016), Araújo and Alvarenga (2011), Tolves et al. (2016) and Krauskopf (2018), and on soccer, with the contributions of Giulianotti (2010), Rossi and Mendes Jr. (2014) and Silva (2006). At the end of the study, a scientific landscape was established that quantitatively demonstrated the production of areas, countries, universities, authors and periodicals. http://ijaers.com/detail/when-scientific-production-enters-in-field-bibliometrics-appointments-about-soccer/ Mauricio Barth, Gustavo Roese Sanfelice http://ijaers.com/uploads/issue_files/7-IJAERS-FEB-2019-41-WhenScientific.pdf The aim of the present study was describe the origin and distribution of the lumbosacral plexus of Sus scrofa. Thirty specimenswere fixed in 10% formalin solution and prepared according to the macroscopic dissection procedures.TheSus scrofa presented five (40%) or six (60%) lumbar vertebrae and the plexus was derived from L2 to S4 spinal nerves.Eight nerves were originated from the plexus and distributed to the pelvic limb: (1) lateral femoral cutaneous, from L2-L4, branched in the psoas minor, psoas major and internal abdominal oblique muscles; (2) femoral, from L3-L6, supplied the psoas major, psoas minor, iliacus, pectineus and quadriceps femorismuscles; emitted the saphenous nerve that innervates the sartorius muscle; (3) obturator, from L3-L6, distributed to the gracilis, obturator externus, pectineus and adductor muscles; (4) cranial gluteal, from L4-S1,branched the middle gluteal and piriformis muscles; (5) caudal gluteal, from L6-S2, supplied the superficial gluteal muscle; (6) sciatic, from L4-S2, innervated the tensor fasciae latae, middle, accessory and deep gluteal, semitendinosus, semimembranosus, biceps femoris, piriformis, gemelli and quadratus femoris muscles; emitted the (a) tibial nerve, that innervates the caudal muscles of the leg and divided into medial and lateral plantar nerves, terminating as plantar digital nerves; (b) common fibular nerve, divided into superficial and deep fibular nerves, that supplied the cranial and lateral muscles of the leg, terminating as dorsal digital nerves; (7) pudendal, from S2-S4, distributed to perineal muscles; emitted the dorsal nerves of clitoris and penis; (8) caudal rectal, from S2-S4, branched to perineal muscles. http://ijaers.com/detail/origin-and-distribution-of-the-lumbosacral-plexusin-sus-scrofa-mammalia-suidae/ Lázaro Antônio dos Santos, Lorena Tannus Menezes, Lucas Assis Ribeiro, Frederico Ozanam Carneiro e Silva, Frederico Balbino Lizardo,Zenon Silva, Roseâmely Angélica de Carvalho Barros, Daniela Cristina de Oliveira Silva http://ijaers.com/uploads/issue_files/8-IJAERS-MAR-2019-6-Originand.pdf Climate models adopted by the Intergovernmental Panel on Climate Change are able to replicate the current climate on a continental scale, but need to be validated on smaller scales. The objective of this study was to evaluate the performance of the Mark-HadGEM2-ES and Mark-MIROC5 regional models to estimate mean temperatures in the last frontier of agricultural expansion of the Brazilian savannah. For this, the data generated by the models were compared with those registered by the National Institute of Meteorology and evaluated by statistical measures of correlation, bias and performance. The results revealed low bias and very good agreement, but high relative error and unsatisfactory performance in the microregional and regional scales. Thus, the data generated by these models need correction to reproduce the current climate and to allow reliable projections on these spatial scales. http://ijaers.com/detail/evaluation-of-the-mark-hadgem2-es-and-mark-miroc5-models-to-simulate-mean-temperatures-in-the-last-agricultural-frontier-of-the-brazilian-savanna/ João Francisco S. Santos, Fernanda Alves Silva, Danuza Costa Leite, Danilo Ribeiro Barbacena, Liliana Pena Naval http://ijaers.com/uploads/issue_files/9-IJAERS-FEB-2019-33-Evaluationof.pdf Urban planning is the process of idealization, creation and development of solutions to improve or revitalize certain aspects within a given urban area or planning a new urban area in a given region, with the main objective to provide people with an improvement in life quality. The objective of this article is to point out ways to possible scenarios and solutions to facilitate the use of best management practices and innovation to overcome the future challenges for public managers of Porto Alegre City, Brazil. Observing the growth rates of public investment in infrastructure and non-infrastructure, as well as the quantitative results we have that the city of Port Alegre is targeting public investments in a contrary way to what refers conceptually to Smart Cities. Low investments in infrastructure and non-infrastructure followed by the rise in law enforcement expenditure inhibit the entry of private investment and consequently economic growth for the city. http://ijaers.com/detail/economic-development-analysis-for-smart-cities-a-new-approach-for-management-and-innovation-practices/ Hugo Ferreira Braga Tadeu, Paulo Renato de Souza, Jersone Tasso Moreira Silva http://ijaers.com/uploads/issue_files/10-IJAERS-MAR-2019-7-EconomicDevelopment.pdf The habit of diluting cleaning solutions is routinely practiced in many homes and facilities around the world every day. The aim of the present work was to analyze the antimicrobial effect on six pathogenic microorganisms transmitted by hand on the two most commonly diluted cleaning solutions used in the state of Paraíba (Brazil). This practice was identified by means of a questionnaire. The cleaning solutions were diluted in sterile water (1:2, 1:4, 1:8 and 1:16) and suspensions of Acinetobacter baumanii, Pseudomonas aeruginosa, Staphylococcus aureus, Escherichia coli, Enterobacter aerogenes and Candida albicans were exposed to each of these solutions for 20 minutes. The yeast remained viable when the solutions had the highest concentrations of water. More than two-thirds of the 395 respondents admitted to having diluted detergent solutions because it was cheaper while believing that the dilution promoted antiseptic action, but not understanding the risk that this poses to health. http://ijaers.com/detail/the-practice-of-the-dilution-of-cleaning-solutions-motivations-and-risks/ Hermano Zenaide-Neto, Bianca Teixeira Morais de Oliveira, Patrik Saul Zarpellon Barbosa, Rafael Limongi de Souza, Thiago Gonçalves Cavalcanti, Ulrich Vasconcelos http://ijaers.com/uploads/issue_files/11-IJAERS-MAR-2019-9-ThePractice.pdf Empowerment is the act of giving or empowering someone. Female empowerment is empowering women to have the capacity and willpower to fight for their rights, equality and their personal and professional emancipation. This work aims to understand the current context of the accountant by focusing on the phenomenon of empowerment. In the review of the literature, the focus was on gender (in) equality, empowerment and women's empowerment. This is a descriptive qualitative research. Data collection was done through interviews with twelve Angolan accountants. About the results, regarding the access to the profession, the interviewees had the support of their relatives; are in good working environment; but have had and have a difficult trajectory to be in the places in which they are; had and still have salary differences compared to male colleagues. Many of them have good financial autonomy and would like it to be better and say that there is little appreciation as a woman in companies. About training, they believe that the Accounting Course has helped them a great deal, even if they feel more competent in the execution of their activities. http://ijaers.com/detail/women-s-empowerment-study-with-angolan-women-accountants/ Celma Inês Alfredo, Almerinda Tereza Bianca Bez Batti Dias http://ijaers.com/uploads/issue_files/12-IJAERS-FEB-2019-38-Women.pdf The rapid and constant changes in the environment influence individuals and organizations. Under these pressures, organizations need continually to learn how to cope with fierce competition at both global and local level, which represents constant challenges to organizations and those working in them. In this context, the question is: How can organizational practices impact the innovation process to enable organizations to compete more effectively? In order to answer this question, our general objective is to study the organizational practices in the face of innovation concepts aimed at organizational competitiveness (1) to raise the conceptual meanings of innovation that contribute to the organization's competitiveness; (2) to characterize organizational practices in an institutional locus; and to make a confrontation between the meanings of innovation and practices (3). The theoretical basis chosen for this essay lies in Complexity Theory, considering the antagonistic concepts and, at the same time, complementary to the perspective proposed here. The research has a qualitative approach and was elaborated through the method of Content Analysis, aiming to analyze the core of innovation by focusing on organizational practices, observing the dynamic relationship between the organization’s many interdependent levels, assuming that this serves as a lens for understanding the phenomenon under review, how organizational practices can interfere in the process of innovation in organizations intended to improve organizational competitiveness. http://ijaers.com/detail/organizational-practices-in-the-context-of-innovation-to-improve-organizational-competitiveness-under-the-light-of-complexity-theory/ Thelma Jakliny Martins Arruda, Raul Afonso Pommer Barbosa, Saiane Barros de Souza, Rwrsilany Silva, Cleice de Pontes Bernardo http://ijaers.com/uploads/issue_files/13-IJAERS-MAR-2019-15-Organizational.pdf Much has been studied about the impact of oral health on quality of life. The literature is vast on this subject and many are the results of the most varied studies. This study aims to systematically review the current medical literature on the impact of oral health on quality of life. A scan was carried out in the main portals of idexation and the articles with the greatest impact and relevance factor were selected for this study. Although there are a large number of articles regarding the impact of oral cavity on quality of life, there are still many divergent results, mainly in patients with edentulous users of total prosthesis. http://ijaers.com/detail/systematic-review-of-current-medical-literature-on-the-impact-of-oral-health-on-quality-of-life/ Éber Coelho PARAGUASSU, Anneli Mercedes Celis de CARDENAS http://ijaers.com/uploads/issue_files/14-IJAERS-MAR-2019-16-SystematicReview.pdf The aim of the present study is to investigate the aluminum, cadmium and lead concentrations in vegetables such as lettuce, potatoes, carrots, beets and cassava often consumed in human diet. Calcination and acid digestion methods were used to prepare the samples. The Spike test has shown that the methods were viable for almost all samples. The recovered analyte percentage ranged from 88.0% to 108.7% in the acid digestion, and from 55.1% to 109.6% in the calcination method. Comparative analyses conducted in lettuce samples have shown lead concentrations 26.4 ± 2.6 mg kg-1 in electrothermal atomic absorption spectrometer (ETAAS) and 33.3 ± 0.3 mg kg-1 in inductively coupled plasma optical emission spectrometer (ICP-OES). The herein presented results allow saying that the concentrations of the elements analyzed in each sample were above the limit set by the Brazilian Ministry of Health and within the tolerance limit set by the Codex Alimentarius. http://ijaers.com/detail/inorganic-contaminants-evaluation-in-tuberous-and-leafy-vegetables-consumed-in-para-ba-valley-brazil/ Rodrigo Fernando dos Santos Salazar, André Luís de Castro Peixoto, Thaís Cristina Coelho de Ornelas Salasar, Roberta Cattaneo Horn, Ritielli Berticelli, João Fernando Zamberlan, Ludmila Noskoski Salazar, Rafael Pivotto Bortolotto, Hélcio José Izário Filho http://ijaers.com/uploads/issue_files/15-IJAERS-MAR-2019-13-InorganicContaminants.pdf In 1999, the European Bologna Process reinforced quality assurance (QA) in higher education (HE). While Cameroon is a signatory non-member state of the Bologna Process, many unresolved quality concerns in its HE system still exist because the Bologna Process has been adopted on an a-la-cartebasis whereby some action lines have been adopted while others have not – for instance QA. In Cameroonian HE,QA is a neglected pillar of the Bologna Process. This article examines some undisclosed quality concerns regarding Cameroonian HE in the advent of the Bologna Process. The study employs a qualitative research design using interviews and focus group discussions. Findings present quality concerns regarding: the lack of adequate educational resources; periodic monitoring, follow up/mentoring; student admission; and university ranking. The paper suggests a reconsideration of the Bologna Process in Cameroonian HE as a process and not an event with more action lines adopted such as QA; and the use of Total Quality Management (TQM) principles as workable strategies used in solving quality concerns in HE. http://ijaers.com/detail/some-unresolved-quality-concerns-in-cameroonian-higher-education-resulting-from-the-negligence-of-adopting-the-bologna-process-quality-assurance-qa-agenda/ Joyce Afuh Vuban http://ijaers.com/uploads/issue_files/16-IJAERS-MAR-2019-22-Someunresolved.pdf The purpose of this article was to analyze the profile of bibliometric production published on intellectual property in the interval of 20 years, in the period from 1998 to 2018.The research was conducted in the scientific databases of the Google Scholar platform and Scopus. The searches carried out in the databases took place through the insertion of the keywords "propriedade intelectual" (term in Portuguese) and "intellectual property" in the field referring to the "title" of the cited databases.During the searches 37,099 publications related to the topic intellectual property were identified. Among the areas of knowledge identified in the research, the one that had the most prominence in the number of publications was Social Sciences, with 1,237 articles published. With regard to the authors, the highlight in the amount of publications was to the American professor Keith Eugene Maskus, with 11 articles published. According to the survey, the journal with the highest number of publications was the Journal of Intellectual Property Rights, published by the Indian National Institute of Communication and Scientific Information Resources, with 73 articles. It is worth noting that most of these articles were written in English, in total 2,399 articles were published in that language.The country with the largest number of publications on intellectual property was the United States, with 767 articles published, 27 of which were published by the University of California, Berkeley. http://ijaers.com/detail/mapping-of-scientific-production-on-intellectual-property-a-bibliometric-analysis/ Danilo Alves do Nascimento, Alexandre Rabêlo Neto, Vítor Eduardo Veras de Sandes Freitas, José Aprígio Carneiro Neto, Elcioneide Costa Silva Carneiro, Alan Kilson Ribeiro Araújo http://ijaers.com/uploads/issue_files/17-IJAERS-MAR-2019-25-Mappingof.pdf Managerial accounting plays a very important role for all companies. Through it it is possible to make decisions that involve the future of the entity while taking into account its present. Therefore, good management accounting helps the company to become more prosperous. However, not being mandatory, companies do not always use it. At the same time, attention to small businesses is growing every day in Brazil. According to the Brazilian Micro and Small Business Support Service - SEBRAE, these small entities are considered the "backbone" of the national economy. In Salgueiro, back country of Pernambuco, Brazil, the predominant activity in the region is the retail trade, mainly made up of micro and small companies. For this reason, the objective of this study was to analyze the perception of microentrepreneurs about the importance of managerial accounting for their companies. The sample was selected from these microenterprises associated with the city's Chamber of Shopkeepers. For that, a closed questionnaire was applied, whose responses were qualitatively analyzed. The results showed that the microentrepreneurs of Salgueiro recognize the importance of managerial accounting and that the continuous use of their tools contributes to the good management of their businesses. http://ijaers.com/detail/the-importance-of-management-accounting-in-the-vision-of-micro-and-small-retail-entrepreneurs-of-the-city-of-salgueiro-pe/ Patricia C. B. Ferreira, Raimundo N. Lima Filho, Ricardo J. R. Amorim, Carlos G. Andrade Neto, Antonio S. Padilha Neto http://ijaers.com/uploads/issue_files/18-IJAERS-MAR-2019-21-TheImportance.pdf The transformer temperature is one of the main variables of interest in its manufacture and operation, since it interferes in the useful life of the transformer. In this sense, the present work proposes a thermal simulation for the temperature estimate of a dry-type transformer. Initially a thermal analysis was performed from experimental measurements of temperatures of a dry-type power transformer of 500kVA for different conditions of load. Posteriorly, a thermal simulation was proposed using finite element theory. Thus, the heat diffusion equation was used, with the following boundary conditions: convection and radiation equations; characteristics of the materials used; the measurement data and the dimensions of the transformer. FEMM 2D software was used for the proposed simulation. Finally, in order to validate the proposed analyzes, experimental measurements were compared with the values obtained in the thermal simulation. The results of the thermal simulation showed agreement with the experimentally measured values. http://ijaers.com/detail/dry-type-power-transformers-thermal-analysis-with-finite-element-method/ Lucas R. Torin, Daniel O. G. Medina, Thales Sousa http://ijaers.com/uploads/issue_files/19-IJAERS-MAR-2019-14-Dry-Type.pdf The payment for environmental services presents itself as a potential instrument that promotes the sustainable development, which contributes to the preservation of nature in order to keep the maintenance of environmental services performed by nature, which is fundamental to human beings. This work aims to review the PES in order to give an overview of the difference of this management system in relation to control systems and an introduction to the main systems currently implemented. It is clear by the described programs in this revision that most of them still rely on resources from the public administration, especially those cases implanted in Brazil. They are still relevant, necessary in several regions; however, they still face problems as to financial resources and still need to be dependent on the public resources to raise money. Thus, programs that do not need help from public resources could carry out an implantation of PES. Through the data presented, it is clear that the programs for the environment can be applicable in any regions. The maintainer can be public, private or a consortium between both and the goals desired by the property owners must be clear and objective. http://ijaers.com/detail/payment-for-environmental-services-an-example-of-sustainable-management/ Eliane Maria Vieira, José Augusto Costa Gonçalves, Roberto Cezar Almeida Monte-Mor, James Lacerda Maia, Giselle de Paula Queiroz http://ijaers.com/uploads/issue_files/20-IJAERS-MAR-2019-18-Paymentfor.pdf The use of cargo handling equipment in the industry in general is extremely important for logistics, since their contribution in receipt of material, until the production stages. Since they are subjected to severe mechanical stress, it is necessary for them to resist to these loading. This work aims to verify the structural integrity of a single girder crane designed by “ARPI Engenharia”, according to standard NBR 8400. In order to evaluate the crane structure and compare the mechanical stresses with NBR 8400 yield stress, a 3D model was created in the software Ansys Workbench 17.2 and analyzed through the Finite Element Method. This is one of the most widely used methods by Engineers in order to design or solve engineering problems. This paper shows the solution of the static analysis, presenting the stress outputs from Ansys Workbench 17.2. http://ijaers.com/detail/numerical-structural-analysis-of-a-single-girder-crane-according-to-standard-nbr-8400/ Samuel Faria Arantes, Ayrton Hugo de Andrade e Santos, José Rubens Gonçalves Carneiro http://ijaers.com/uploads/issue_files/21-IJAERS-MAR-2019-23-NumericalStructural.pdf This study aims to develop video tutorials as a medium for independent learning on the material "Designing Multimedia-Based Learning Materials Presentations in IAKN Tarutung. Respondents in this study were sixth grade students of Christian Religious Education study program. This research was conducted in February until November 2017. The research method applied a mixed method, which is a combination of quantitative and qualitative approaches. The step of product development applied by adapting the ADDIE development model modified with R & D procedures according to Borg & Gall. Data collection was carried out by interviews, questionnaires and learning outcomes tests. After the initial prototype was developed further validation was carried out which included expert evaluation, one to one evaluation, small group evaluation and field testing or evaluation of large groups, the purpose which to refine existing deficiencies so that the product was feasible to use. Based on the results of the validation, it is known that the percentage of product feasibility based on expert design evaluations is 87% very feasible, 88% of material experts are very feasible and media experts 82% are quite feasible but still need revision. And based on one to one evaluation, 90% is very feasible, small group evaluations of 90% are very feasible and still need revision, while the results of evaluation of field test of product feasibility is 91% very feasible without need for revisions. Furthermore, based on the learning outcomes test the respondents in the field test, the average test results obtained is 80.57> 75 (Value B), which is the Standart minimum criterion, it means that the video tutorial products developed are effective http://ijaers.com/detail/video-tutorial-development-as-independent-learning-media-in-materials-designing-teaching-based-on-multimedia-presentation-in-iakn-tarutung/ Oktober Tua Aritonang http://ijaers.com/uploads/issue_files/22-IJAERS-MAR-2019-20-VideoTutorial.pdf The present work has as main focus the demonstration of the use of an android application as mediator and facilitator of the knowledge of mathematics for elementary school children using concepts and techniques of computational intelligence implementing the model of expert systems. For this the application will be developed in java using the android platform in order to accompany the great expansion of current technological tools such as games and multimedia applications because they are portable and facilitate the use at any time. With this, it is expected that the application will be of great use for students and teachers since they have assisted in teaching through methodologies and technological education merged in elementary schools. http://ijaers.com/detail/android-app-for-teaching-and-learning-math-for-elementary-school-children/ Ítalo Rodrigo Soares Silva, José Valente Coutinho Neto, Paulo Oliveira Siqueira Junior, Antônio Estanislau Sanches, Jorge de Almeida Brito Júnior, David Barbosa de Alencar http://ijaers.com/uploads/issue_files/23-IJAERS-MAR-2019-17-Androidapp.pdf Working outdoors leaves marks on human bodies that are sometimes lasting. In family farming, workers age by consequence of their exposure and work, reaching older ages with serious physical and health problems. Purpose: To analyze the main factors that affects the health and therefore the aging process of family farming workers. Method: The research is characterized as descriptive observational, with data analysis from a qualitative paradigm. A semi-structured interview and the Corlett diagram were also applied. There were 80 participants from the municipality of Linha Nova, in the south of Brazil. Results: The main problems in family farming and that are also related to workers’ health are: climate, in which the sun is the main factor in premature aging and the risk of skin cancer; lack of mechanization, demanding that the activities be carried out manually; and heavy work and squatting, resulting in high incidence of lower-back pain among workers as a consequence of poor posture and weight handling. Conclusion: Despite these problems and less physical endurance, the results show that, for the elderly, to continue working on the family farm is a way to stay busy doing what they enjoy, to boost their self-appreciation and to help in the family business. http://ijaers.com/detail/work-and-successful-aging-process-an-approach-to-family-farming/ Michele Barth, Jacinta Sidegum Renner, Rosemari Lorenz Martins, Geraldine Alves dos Santos http://ijaers.com/uploads/issue_files/24-IJAERS-MAR-2019-12-Workand.pdf The anatomy of wild animals is an involving and interesting area of biological studies in many countries around the world, since the major interest of understands biology, especially animals in extinction risk. Therefore, the objective of this work was dissect and describe the anatomy of lumbosacral plexus of Hoary Fox, a typical and yet little known animal in the Neotropical Cerrado. For this, two male and two female specimens obtained from accidental death on the roadsides of Brazilian Southeast of Goiás were used, both fixed in aqueous solution of 10% formaldehyde and dissected under traditional techniques of macroscopic anatomy. The findings showed that lumbosacral plexus of Hoary Fox is formed by intersecting of L5, L6, L7, S1, S2 and S3. A lumbar plexus and a sacral one are easily identified in this animal. The boundary between them is the trifurcated nerve (L7). The lumbosacral plexus provides three major nerves to the pelvic limb: femoral, obturator and sciatic, besides some small muscular branches. Discussing with specific literature, the present work demonstrated unpublished data about the anatomic standard of Hoary Fox in lumbosacral plexus, an important system in this animal biological system. http://ijaers.com/detail/anatomy-of-lumbosacral-plexus-in-hoary-fox-lycalopex-vetulus-lund-1842/ Roseâmely Angélica de Carvalho Barros, Luciano César Pereira Campos Leonel, Carlos Eduardo de Carvalho Souza, Lanussy Porfiro de Oliveira, Thiago Sardinha de Oliveira, Daniela Cristina de Oliveira Silva3 and Zenon Silva http://ijaers.com/uploads/issue_files/25-IJAERS-MAR-2019-27-Anatomyof.pdf This aim presents the first detailed geochemical data of water of the Jaguari stream, Lavras do Sul-RS. In this study we use Principal Component Analysis (PCA) to establish geochemical grouping that can be related back to likely mining, lithological and anthropic actives in the region. The results indicated that the high concentrations of Cu, Rh and Cd have a close relationship to local anthropic activities and lithological with geochemical changes seasonal fluctuations. The geochemistry results too indicated waters classified as soft and hard (total hardness range from 53.02 to 79.28 mg L-1), neutral pH, and electric conductivity ranged from 157.1 to 184.9 µs cm-1. All measured values met the potability standards for human consumption established by Ordinance Nos. 2914 (2011), 36-GM/1990, and 1469/2000. http://ijaers.com/detail/water-quality-assessment-through-pca-analysis/ Cristiane Gomes, Diogo Sperandio, Natália Borges, Aline Barbosa, Arthur Viçozzi, Guilherme Pazinato Dias http://ijaers.com/uploads/issue_files/26-IJAERS-MAR-2019-11-WaterQuality.pdf Tatu Peba is an animal from Euphractus genus whose anatomy and/or systemic description are little studied, a fundamental understanding of biological system knowledge of this animal. Thus, this work aimed perform an anatomical description of abdominal aorta and Tatu Peba branches through a comparative study using 2 male and 2 female specimens. In this sense, the present work showed unprecedentedly discovery about this animal as the first major branch of abdominal aorta is celiac trunk and the second branch is a. Mesenteric cranial. From ventrolateral face, a. Phrenic caudal, by ventral small face Aa. Accessory Mesenteric and five pairs of Aa. Lombares. Medium distance, between Celiac Trunk and Aa. External Iliacs, born Renal arteries. A. Caudal Mesenteric emerges ventrally to caudal part of large intestine. In the final part of aorta, Aa. External Iliacs borns ventrolaterally and caudally projected. After Aa. External Iliacs origin, the aorta undergoes a drastic reduction of caliber and forms a short trunk that divides into terminal branches of aorta: right internal iliac, Left Internal Iliac and a. Median sinsacral in sagittal plane which emits an a. Lateral to each side, following three caudally. In view of these findings, the present study showed that abdominal aorta of Tatu Peba presents smaller number of branches bought from other mammals and contributes to anatomical description and understanding of important blood vessels in this animal biological system. http://ijaers.com/detail/anatomy-of-abdominal-aorta-in-tatu-peba-euphractus-sexcinctus-linnaeus-1758-a-descriptive-and-comparative-study/ Thalles Anthony Duarte Oliveira, Kadija Mohamed Santee, Tarley Santos Oliveira, Bruna Silva Lopes, Vinícius Gonçalves Fontoura, Thiago Sardinha de Oliveira, Roseâmely Angélica de Carvalho Barros, Zenon Silva http://ijaers.com/uploads/issue_files/27-IJAERS-MAR-2019-33-Anatomyof.pdf The study aims to identify and prioritize the accidental blackspots locations on Kandahar – Spin Buldak highway located in Afghanistan. The hazardous locations (blackspots) are identified by the APW (Accident Point Weightage), EPDO (Equivalent Property Damage Only), and RQC (Rate Quality Control) methods. In the first step;APW and EPDO methods identified Km 7th, Km 20th, Km 47th, Km 62nd and Km 90th as blackspot locations on Kandahar – Spin Buldak highway, however, integrating all three methods (RQC, APW and EPDO); the Km 7thand Km 20th are recognized as critical hazardous locations alongside this highway. While practically and theoretically high number of crashes occur in locations where there is higher AADT,surprisingly, this paper found critical blackspots locations alongside Km 7th and Km 20th segments of the highway(havingalmost equal and less AADT in comparisonwith 47th, 62nd and 90th Km). http://ijaers.com/detail/accidents-analysis-of-kandahar-spin-buldak-highway-in-afghanistan/ Shahzada Ulfat, Abdul Wahid Wahidi, Farhad Ahmadzai http://ijaers.com/uploads/issue_files/28-IJAERS-MAR-2019-28-AccidentsAnalysis.pdf The objective of this study was to describe the topography, arterial irrigation, and microscopy of thyroid glands of thirty male specimens of New Zealand rabbits (Oryctolagus cuniculus). The aorta-thoracic system was analyzed by aorta thoracic cannulation and fixed in a 10% aqueous formaldehyde solution. Right and left lobes, and the isthmus of the thyroid gland were collected from only three rabbits for microscopic analyses. The procedure followed usual histological routine and histological sections were stained with Hematoxylin/Eosin. The thyroid gland consists of two flat, elongated lobes located ventrolateral to the trachea. Topographically, there is a close relationship between this gland and lateral surfaces of the first five tracheal rings, just below the cricoid cartilage and between the right and left common carotid arteries. The arterial supply to the thyroid gland in both antimers is performed by the thyroid artery, a branch of the common carotid artery. Following its origin at the level of the first tracheal ring, the thyroid artery continues in a caudocranial path. It reaches the cranial part of the thyroid gland and is divided into several branches that are distributed in this organ. The histological sections reveal that the cellular aspect of the isthmus region maintains the same organization and characteristics observed in the thyroid lobes. The thyroid gland in Oryctolagus cuniculus is small, consisting of two bilateral lobes united by an isthmus that presents glandular tissue. http://ijaers.com/detail/topography-irrigation-and-histology-of-the-thyroid-gland-of-new-zealand-rabbits-oryctolagus-cuniculus-linnaeus-1758/ Ana Paula Silva Borges, Lorena Tannus Menezes, Lázaro Antonio dos Santos, Gustavo Cavinato Herrera, Gustavo Lucio França, Stephany Yasmine Andrade de Paula, Karen Renata Nakamura Hiraki, Frederico Ozanam Carneiro e Silva http://ijaers.com/uploads/issue_files/29-IJAERS-MAR-2019-26-Topography.pdf Fennel (Foeniculum vulgare Mill), originating in the basin of the Eastern Mediterranean and Caucasian, is now cultivated in many varieties selected by the sweetness and low concentrations of anethole, which allows consumption in salad dressings and condiments. Other varieties were selected to obtain high concentrations of essential oils and are used in folk medicine pharmaceutical industry. Despite the long history of application ethnomedicinal F. vulgare, no reports of serious side effects, several studies have shown that they can present cytotoxic and genotoxic activity. Therefore, this study aimed to analyze the cytotoxic and genotoxic effects of aqueous extract of fennel (Foeniculum vulgarevar. vulgare Mill.), Prepared in 2%, 4% and 8%, compared to bioindicators (Allium cepa L. and Musmusculus L.). The aqueous extract of F. vulgarea concentration of 2% cytotoxic effects caused significantly inhibiting mitotic division and genotoxic effects, providing chromosomal damage induced micronucleus formation in meristematic cells of Allium cepa L. In experimental animals in vivo genotoxic potential was found in cell bone marrow of mice. In this way, fennel tea should be consumed with moderations and medical care, especially for infants who have not yet developed the digestive tract, it may be harmful to health. http://ijaers.com/detail/effects-cytotoxic-and-genotoxic-of-aqueous-extract-of-fennel-foeniculum-vulgarevar-vulgare-mill/ Juscélio Clemente de Abreu, Wanessa Soares Luiz Silva, Gláucia Regina Hosken Ribeiro, Monique Monhoz Dantas, Daniel Rodrigues Silva, Roberto Santos Barbieri, Marcus Antonius da Costa Nunes, Luana Frigulha Guisso, Lamara Laguardia Valente http://ijaers.com/uploads/issue_files/30-IJAERS-MAR-2019-43-EffectsCytotoxic.pdf Antimicrobial effect of Irvingia gabonensis leaf extracts was tested against bacteria and fungal agents that causes diarrhoea (Salmonella typhi, E.coli, Staphylococcus aureus, Shigella dysenteriae and Candida albican). Fresh tender leaves of Irvingia gabonensis was collected, air-dried, grounded and soarked in n-hexane, methanol and aqueous solvents. The Antimicrobial activities were determined using agar well diffusion assay, then the MIC, MBC and MFC were determined by agar dilution assay. The results revealed that the crude methanol and n- hexane extracts of Irvingia gabonensis produced the highest antifungal effects against Candida albicans with the MIC of 25 mg/ml and MFC of 50 mg/ml. The crude aqueous extract of I.gabonensis had no antifungal activity on Candida albicans. The crude methanol extracts of Irvingia gabonensis produced the highest antibacterial effects with MIC ranged of 6.25 mg/ml to 25 mg/ml and MBC of 12.5 mg/ml to 50 mg/ml. These results suggest that Irvingia gabonensis leaf extract is recommended as a diarrhoea disease remedy. http://ijaers.com/detail/antimicrobial-activities-of-irvingia-gabonensis-leaf-against-diarrhoea-causing-agents/ Bright Chukwuebuka UNAEZE, Ogochukwu Mary-Theodora Barbara OCHIABUTO, Ebele Chinwe EJIKE, Maureen Chioma OBI, Samuel Nwanneamaka NWANKPA http://ijaers.com/uploads/issue_files/31-IJAERS-MAR-2019-10-Antimicrobial.pdf Nuclear research reactors are often found in open pools, allowing visibility of the core and the bluish luminosity of the Cherenkov radiation. In general, the thermal energy released in these reactors is monitored by chambers that measure neutron flux. There are other methods used to measure the power, including: nitrogen formation, measure of the fuel rod central temperature, and the energy balance in the heat exchanger. The brightness of Cherenkov radiation is caused by the emission of visible electromagnetic radiation (in the blue band) by charged particles that pass through an insulating medium (water in research reactors) at a speed greater than that of light in this medium. The objective of this research is to propose, design, and assemble a prototype of an equipment, which uses an innovative and alternative method to monitor the power of nuclear research reactors by measuring the intensity of luminosity generated by the Cherenkov radiation produced within and around the core. An Arduino Uno board was used, with color and luminosity sensors. The work was performed simulating and monitoring experimentally in laboratory, the intensity of luminosity generated by the Cherenkov radiation. The prototype presents potential as an auxiliary methodology for measuring thermal power of research nuclear reactors. It is intended to use this measurement system in the IPR-R1 Triga reactor of the Nuclear Technology Development Center - CDTN (Brazil). http://ijaers.com/detail/design-of-a-visual-system-to-monitoring-thermal-power-in-pool-type-nuclear-research-reactor/ Amir Zacarias Mesquita, Brício Mares Salles, Marley Rosa Luciano http://ijaers.com/uploads/issue_files/32-IJAERS-MAR-2019-45-Designofa.pdf This paper describes the research on the correlation between weighting coefficient in weighted total acceleration equation with wave height distribution from Rayleigh and with Pierson-Moskowitz spectrum. The research is done using dispersion equation for deep water wave where there is wave amplitude as its variable and a limitation of wave height maximum for a wave period. From that dispersion equation, a maximum wave height equation is formulated for a wave period. http://ijaers.com/detail/correlation-of-weighting-coefficient-at-weighted-total-acceleration-with-rayleigh-distribution-and-with-pierson-moskowitz-spectrum/ Syawaluddin Hutahaean http://ijaers.com/uploads/issue_files/33-IJAERS-MAR-2019-37-Correlationof.pdf The concept of development goes back to the classical theory of economics and has many other aspects over the years. In Brazil, many public policies instituted by the Federal Government sought to promote the country's development, such as the creation of the Manaus Free Zone, which aimed to promote the development of the North region in a sustainable way. Likewise, Free Trade Areas were created - decentralized FTAs, as in the case of Guajará-Mirim, as territorial and developmental strategies. The objective of this article is to analyze the regional development of Guajará-Mirim and verify its relation with the institutionalization of the Free Trade Area, having as research variables the Municipal Human Development Indexes - MHDI, Education Index, Income Index and Work Index. The following question is answered: did the installation of the Free Trade Area in Guajará-Mirim contribute to regional development? To answer the research problem, the main theoretical approaches to regional development and related public policies are used, with emphasis on the studies provided by MYRDAL (1957), BALDWIN (1979), BARQUERO (1995), AMARAL FILHO (1999), SOUZA, (1999, 2005, 2009), CABUGUEIRA (2007), FREY (1997), among others.. http://ijaers.com/detail/regional-development-in-the-amazonian-border-area-from-the-installation-of-areas-of-free-trade/ Gleimiria Batista da Costa Matos, Rosalina Alves Nantes, Nilda dos Santos http://ijaers.com/uploads/issue_files/34-IJAERS-MAR-2019-38-RegionalDevelopment.pdf The aim of this study is to assess the shallow groundwater quality of Dumne Area of northeastern Nigeria for drinking and domestic purposes. The study area is underlain by the alluvium, basalt, gneisses and granitic rocks of northeastern Nigeria. Twenty water samples collected from hand-dug wells and boreholes tapping shallow aquifer were analyzed. Chemical analyses were performed in the laboratory employing standard methods viz Atomic Adsorption Spectrophotometer for cations and conventional titration for anions. In addition ions in milligram per litre were converted to milliequivalent per litre and anion balanced against cations as a control check of the reliability of the analyzed results. The analyzed chemical parameters was interpreted and the result revealed that all other parameters with the exception of pH, potassium, total hardness and zinc falls below the guidelines established by local and international standards. The Gibbs diagrams show that all the groundwater and surface water samples fall within the rock dominance portion indicating that the water quality is largely controlled by water-rock interactions. A plot of the Trilinear diagrams of the water samples indicate Na++K+ as the major cations and SO42- as the major anions with Na++K+ facies as the hydrogeochemical facies. This suggests significant groundwater mixing, water-rock interaction and a common source for both surface water and groundwater samples. Finally it is suggested that all the water samples with high values of pH, Mn2+, phosphate, Fe2+ potassium, total hardness and zinc that falls above the guidelines established by local and international standards for drinking and domestic purposes should be treated before use. http://ijaers.com/detail/physicochemical-characteristics-of-groundwater-quality-of-dumne-area-ne-nigeria/ Gabriel Ike Obiefuna, Christopher Jiniya Dio, Abdullahi Jibrin Lakuza, Ahmed Buba Seli http://ijaers.com/uploads/issue_files/35-IJAERS-MAR-2019-31-Physicochemical.pdf The innovation process is a global phenomenon that affects the economic sectors, especially the companies. Patents help in the process of business competitiveness and serve as a business strategy. The objective of this paper was to investigate how the economic and financial factors affect the decision to deposit patents of publicly traded companies listed on the stock exchange Brasil, Bolsa, Balcão (B3). The data used are a fusion of the information provided by two sources: patent data provided by the National Institute of Industrial Property (INPI) and company data of the financial information system of the B3 Stock Exchange, in the period from 2010 to 2017. The data were analyzed using descriptive statistics and the logit econometric model. The results indicate that the companies with greater propensity to patent are characterized as being large, with lower general and short term indebtedness and with lower overall liquidity, together with a higher potential of the asset add value. They are also more likely to be assignor and assignees of technology transfer contracts, in addition to being generally in sectors of high or low technological intensity. The results also show that financial performance indicators have a significant negative impact on the probability of a company filing a patent application. http://ijaers.com/detail/propensity-to-patent-brazilian-companies-importance-of-economic-and-financial-performance/ Patricia Brandão Barbosa da Silva, Renata Silva-Man, Cristiano da Silva Santos http://ijaers.com/uploads/issue_files/36-IJAERS-MAR-2019-39-Propensityto.pdf Box culverts are the monolithic structure made to pass across a roadway, railway lines etc. Embankments are used to balance the flood water on both sides. Box takes various types of loads generated by water, traffic, cushion, soil etc. This work deals with complete design of box culvert manually and study the design parameters such as effect of earth pressure, depth of cushion at the top slab of culvert, factor such as braking force, Impact load, Live load, Dispersal of load through tracked or wheeled vehicle, effective width etc. In this work, study of culvert with and without cushion analyzed for different classes of IRC loadings and conclusions made on the basis of bending moments and shear forces with and without cushioning cases. This paper provides full discussion of provisions provided by Indian Standards, their justifications and considerations are taken into the account for design purpose. http://ijaers.com/detail/analysis-and-design-of-box-culvert-a-manual-approach/ Roshan Patel, Sagar Jamle http://ijaers.com/uploads/issue_files/37-IJAERS-MAR-2019-34-Analysisand.pdf The need for the conservation of natural resources is of paramount importance with regard to irrigated agriculture, since it is the main consumer and user of water resources in Brazil and in the world. Thus, technologies are being used to increase the efficiency of water use in irrigation and to conserve water resources. Patent data on technological developments of irrigation systems were collected from the National Institute of Industrial Property database, as well as legislation and public policies regarding irrigated agriculture in Brazil. A total of 732 patent registrations were registered in the period between 1974 and 2016. The number of patent registrations on the development of technological processes for irrigation has been increasing, as well as the implementation of policies aimed at irrigated agriculture. http://ijaers.com/detail/technological-development-and-policies-in-the-scenario-of-irrigated-agriculture-in-brazil/ Bruno C. Góes, Fernando F. Putti, Jhonatan C. Piazentin, Camila P.C. Gabriel, Luís R. A. Gabriel Filho http://ijaers.com/uploads/issue_files/38-IJAERS-MAR-2019-35-TechnologicalDevelopment.pdf The purpose of this study is to present a case study based on real production data in which the computer simulation was used to analyze the efficiency of the current layout, paying attention to indicators defined by the value stream mapping, which determined the need of layout restructuring. For this purpose, it was used a computer tool for discrete events that permits to explore the features of the system, aiming to provide a more comprehensive view of the assembly line, since the software has several performance analysis tools. The method was developed through "in loco" data collection, in similar cases studied in the literature, and in the computation tool learning, thus creating a virtual environment that allowed simulate various layout restructuring strategies to reach the desired result, verifying a great potential for improvement with this restructuring. Finally, the results obtained with the simulation proved that its use emerges as a powerful tool for evaluating the rationalization of resources and production layout restructuring, making clear the advantages and features of the use of computer simulation as a tool to help making decisions in industrial manufacturing process. http://ijaers.com/detail/layout-optimization-using-computer-simulation-tool-for-decision-making/ Kellen Bicho Vieira, Carlos Americo de Souza Silva, João Nazareno Nonato Quaresma http://ijaers.com/uploads/issue_files/39-IJAERS-MAR-2019-42-LayoutOptimization.pdf Chemical speciation of ternary complexes MLX, ML2X and MLXH formed by Co(II), Ni(II), Cu(II) and Zn(II) with L-arginine as primary ligand (L) and succinic acid as secondary ligand (X) was studied in various concentrations (0.0-2.5% w/v) of cationic surfactant solution maintaining an ionic strength of 0.16 mol dm-3 (NaNO3) at 303K. Titrations were carried out in the presence of different relative concentrations (M: L: X =1:2:2, 1:2:4, 1:4:2) of metal to L-arginine to succinic acid with sodium hydroxide as titrant. The observed extra stability of ternary complexes compared to their binary complexes was explained based on the electrostatic interactions of the side chains of the ligands, charge neutralization, chelate effect, stacking interactions and hydrogen bonding. The trend in log β values with mole fraction of the surfactant and distribution diagrams were presented. Structures of plausible ternary complexes were also presented. http://ijaers.com/detail/ternary-complexes-of-essential-metal-ions-with-l-arginine-and-succinic-acid-in-cationic-surfactant-medium/ Srikanth Bathula, Krishna Kumar Kotra http://ijaers.com/uploads/issue_files/40-IJAERS-MAR-2019-40-TernaryComplexes.pdf