bluuebunny/crossref_metadata_2025 huggingface dataset:
Mechanisms of vertebrate neural plate internalization
Authors: Araya Claudio , Carrasco Daniela
Published: September 2020

The internalization of multi-cellular tissues is a key morphogenetic process during animal development and organ formation. A good example of this is the initial stages of vertebrate central nervous system formation whereby a transient embryonic structure called the neural plate is able to undergo collective cell rearrangements within the dorsal midline. Despite the fact that defects in neural plate midline internalization may result in a series of severe clinical conditions, such as spina bifida and anencephaly, the biochemical and biomechanical details of this process remain only partially characterized. Here we review the main cellular and molecular mechanisms underlying midline cell and tissue internalization during vertebrate neural tube formation. We discuss the contribution of collective cell mechanisms including convergence and extension, as well as apical constriction facilitating midline neural plate shaping. Furthermore, we summarize recent studies that shed light on how the interplay of signaling pathways and cell biomechanics modulate neural plate internalization. In addition, we discuss how adhesion-dependent cell-cell contact appears to be a critical component during midline cell convergence and surface cell contraction via cell-cell mechanical coupling. We envision that more detailed high-resolution quantitative data at both cell and tissue levels will be required to properly model the mechanisms of vertebrate neural plate internalization with the hope of preventing human neural tube defects.
Building the embryo of Developmental Biology in Uruguay
Authors: Zolessi Flavio R. , Berois Nibia , Brauer M. Mónica , Castillo Estela
Published: September 2020

In Uruguay, a country with a small population, and hence a small scientific community, there were no classical embryologists as such in the past. However, in the decade of the 1950s, a cumulus of favorable conditions gave rise to highly active and modern research groups in the fields of cytology and physiology, which eventually contributed to developmental biology. The advent of a long dictatorship between the 1970’s and 1980’s caused two things: a strong lag in local research and the migration of young investigators who learned abroad new disciplines and technologies. The coming back to democracy allowed for the return of some, now as solid researchers, and together with those who stayed, built a previously inexistent postgraduate training program and a globally-integrated academy that fostered diversity of research disciplines, including developmental biology. In this paper, we highlight the key contributions of pioneer researchers and the significant role played by academic and funding national institutions in the growth and consolidation of developmental biology in our country.
Cell segregation and boundary formation during nervous system development
Authors: González-Ramírez M. Constanza , Guzmán-Palma Pablo , Oliva Carlos
Published: September 2020

The development of multicellular organisms involves three main events: differentiation, growth, and morphogenesis. These processes need to be coordinated for a correct developmental program to work. Mechanisms of cell segregation and the formation of boundaries during development play essential roles in this coordination, allowing the generation and maintenance of distinct regions in an organism. These mechanisms are also at work in the nervous system. The process of regionalization involves first the patterning of the developing organism through gradients and the expression of transcription factors in specific regions. Once different tissues have been induced, segregation mechanisms may operate to avoid cell mixing between different compartments. Three mechanisms have been proposed to achieve segregation: (1) differential affinity, which mainly involves the expression of distinct pools of adhesion molecules such as members of the cadherin superfamily; (2) contact inhibition, which is largely mediated by Eph-ephrin signaling; and (3) cortical tension, which involves the actomyosin cytoskeleton. In many instances, these mechanisms collaborate in cell segregation. In the last three decades, there have been several advances in our understanding of how cell segregation and boundaries participate in the development of the nervous system. Interestingly, as in other aspects of development, the molecular players are remarkably similar between vertebrates and invertebrates. Here we summarize the main concepts of cell segregation and boundary formation, focusing on the nervous system and highlighting the similarities between vertebrate and invertebrate model organisms.
El Paleolítico superior del abrigo del Corral de les Paleres (Crevillent): análisis tecnotipológico y litológico de la industria lítica
Authors: Molina Hernández Francisco Javier , Casabó i Bernad Josep A. , Belmonte Mas Daniel , Satorre Pérez Ana
Published: September 2020

En el presente trabajo se analiza la industria lítica de superficie recuperada en el abrigo del Corral de les Paleres (Crevillent). Este análisis tiene dos vertientes, en primer lugar de carácter tecnotipológico con el objetivo de encuadrar la industria cronológicamente. La presencia o ausencia de determinados útiles, así como las características morfológicas de la industria señalan su adscripción al Paleolítico superior -Magdaleniense-, no descartándose una ocupación que pudo iniciarse hacia finales del Solutrense.En segundo lugar se analizan las características de la materia prima silícea con el objetivo de determinar los principales tipos de sílex empleados en este hábitat. Cruzando estos datos con los obtenidos en los trabajos geoarqueológicos desarrollados en la zona desde 2016, se han podido establecer las fuentes de aprovisionamiento de sílex más próximas. El dato más relevante a este respecto es que casi el 90 % pudo haber sido captado en un radio no superior a 10 km.El yacimiento, conocido por aficionados locales desde los años 70, permanece inédito, lo que unido a las recientes remociones del terreno que han hecho aflorar material arqueológico y la elevada concentración de enclaves paleolíticos en la zona, justifican el presente estudio.
Edificio de espectáculos en la Hispania del siglo II d. C.: un análisis sincrónico
Authors: Romero Vera Diego
Published: September 2020

En este trabajo abordamos una revisión sintética de los teatros, anfiteatros y circos que fueron construidos o reformados en las provincias hispanas durante el siglo II d.C. Partiendo de esta documentación, pretendemos señalar cuáles fueron sus principales rasgos en esta fase y determinar el interés que despertaron los diferentes ludi a partir de las intervenciones (edilicias y decorativas) que acogieron sus respectivos edificios.
La presencia de la arqueología ibérica en las Exposiciones Universales e Internacionales de finales del siglo XIX y principios del XX
Authors: Tortosa Trinidad , Suárez Martínez Diego
Published: September 2020

Las Exposiciones Internacionales y Universales fueron durante la segunda mitad del siglo XIX y el primer cuarto del siglo XX los grandes eventos mundiales. Estas ferias servían como lugar de exhibición de los adelantos que cada nación participante había hecho en materia de ciencia y tecnología. Su popularidad hasta el cambio de siglo hizo de las exhibiciones el lugar predilecto en el que mostrar los avances en todas sus facetas. Por ello, estos multitudinarios eventos ejercieron asimismo como tablero en el que se puede observar la política internacional del momento. Dentro de esta función de exhibición internacional, presenciamos la consolidación de las identidades nacionales que se forjaron durante el siglo XIX. En las identidades nacionales cumple una función primordial la legitimación histórica de las mismas. Es por esta razón por la que en las Exposiciones Internacionales y Universales se exhiben piezas de valor arqueológico que representen el pasado de la nación. En este trabajo analizamos el papel que tuvo la arqueología ibérica en estos foros, y especialmente las estatuas del Cerro de los Santos, aparecidas fundamentalmente en la década de 1870. Además, analizamos la importancia de la presencia ibérica en estas exposiciones para llegar a definir y confirmar su propia personalidad histórica.
Presentación
Authors: Espina Barrio Ángel B. , Gomes De Lima Mário Hélio , González Velasco Pablo
Published: September 2020

Presentació del dossier “La Hispanidad y las presencias andalusíes y orientales en la obra de Gilberto Freyre”.
Sistema de Iluminação Publica Inteligente
Authors: Rodrigues de la Rocha Fábio
Published: September 2020

Public street lighting management is a well known problemwhich can be revisited from the perspective of Smart Cities.In Smart Cities there is an interconnection of services andinfrastructure to provide sustainable growth and improvementsin citizens’ quality of life. In this research work, weexplore new low cost technologies to create a smart streetlight system capable of monitoring and controlling the lamps,thus reducing the costs with maintenance and allowing amore rational use of electricity.
Um Estudo Sobre Identificação de Aglomerados de Galáxias
Authors: Victor Ribeiro de Jesus João , Lyra Rodrigo
Published: September 2020

Galaxy clusters are fundamental blocks of our universe, like stars and galaxies. The study of galaxy clusters has shown complexity due to a large number of stars superimposed on these clusters, which emit light and block the clear optical band visualization of the phenomenon. In this paper, we present the implementation of an algorithm capable of classifying and remove the stars of spatial images. The purpose is to improve not only the existing studies around galaxy clusters but also to assist the developing in astronomic researches with available treated spatial images.
NEAT Snake: a both evolutionary and neural network adaptation approach
Authors: Steffens Henrique Alisson , Almeida dos Santos Vinicius , Lyra Rodrigo
Published: September 2020

There are several challenges when modeling artificial intelligencemethods for autonomous players on games (bots). NEAT is one ofthe models that, combining genetic algorithms and neural networks,seek to describe a bot behavior more intelligently. In NEAT, a neuralnetwork is used for decision making, taking relevant inputs fromthe environment and giving real-time decisions. In a more abstractway, a genetic algorithm is applied for the learning step of the neuralnetworks’ weights, layers, and parameters. This paper proposes theuse of relative position as the input of the neural network, basedon the hypothesis that the bot profit will be improved.
Detecção de Vagas em Estacionamento Usando Visão Computacional e Redes Neurais Convolucionais
Authors: Mazetto Mendes Caroline , Marrion Cavenagli Willian
Published: September 2020

Parking lots are no longer practical solutions but become anothertopic of urban mobility problem due to the difficulty in finding availableparking spaces. This work proposes a parking space detectionsystem to assist drivers. The system detects unoccupied vacanciesby image processing techniques and convolutional neural networks.Vacancies are detected through horizontal markings and by recognizingspaces with or without vehicles. Finally, a mobile applicationmakes available to the user the occupancy status of vacancies. Initialresults showed that the system detects vacancies with visiblemarkings during the daytime. To improve detection in adversesituations, the vacancy detection algorithm is being improved.
SCIUloT: Sistema de Combate aos lncendios Urbanos por meio daloT
Authors: Messias de Oliveira Souza Emanuel , Rudolfo Diedrich Ullmann Matheus , Do Carmo Nogueira Tiago
Published: September 2020

The Internet of Things (IoT) is a communication paradigm that aims to cover the current Internet. In this sense, IoT covers a large space in the daily life of human beings, whether in the academic field or in the industrial sphere, therefore, there are smarter cities, health and automation of environments. Through the IoT it is possible to connect the objects of the everyday world to the Internet, in order to make these objects communicate with each other and with users. This work presents the way in which the IoT can corroborate in the fight against Urban Fires, through a system that interacts sensors, microcontrollers, the user and the Fire Department. The use of sensors that collect information about a certain location, send it to a controller board, which in turn forwards that information to the server, which directs the information to the user and the Fire Department, is the mechanism that will allow firefighters to be alerted to the incident. In this way, the work of the competent bodies can be made more effusive and, therefore, prevent the spread of fire in order to fight fires. It is worth mentioning that the rapid action of firefighters is extremely important, as the fire spreads quickly and produces incalculable damage.
Proposta para Reparticionamento de Estado em Replicação Máquina de Estado Paralela
Authors: Gabriel Trombeta João , Machado Mendizabal Odorico
Published: September 2020

State Machine Replication is a widely used technique to providefault tolerance and strong consistency. In this approach, all commandsare executed sequentially throughout the replicas. Aimingto improve the system’s throughput, enhanced versions were proposed,where independent commands can be executed in parallel.One arising challenge, though, is how to balance the workload betweenthreads, while avoiding the need of synchronization betweenthem. This extended abstract proposes a technique to schedule requestsin a dynamic and efficient manner, using a workload graph tokeep track of access patterns and graph partitioning to decomposeand dispatch workload to the worker threads.
Redução De Consumo De Energia Em Sistemas De Telefonia Comunitária Usando Raspberry Pi
Authors: Couto Gabriel , Leão Giovanni , Castro Lauro , Klautau Aldebaro , Muller Francisco
Published: September 2020

This article presents an energy consumption analysis of two differentemulation scenarios of a GSM (Global System for Mobile)network; one with a traditional computer and another with RaspberryPi 3. The network is created by open-source software thatemulates the main modules of a GSM network, this emulation combinedwith a radio generator equipment enables calls and messageexchange between network users. The CELCOM project designsand implements community networks in digitally isolated regions,the scenarios presented in this article can be applied in works ofCELCOM project. The power distribution service of this GSM network,in isolated regions, does not have the required stability tomaintain the quality in community networks, creating a demand foran alternative power system. Different scenarios are proposed andanalyzed in this work, trying to get a lower energy consumption
Uma Abordagem para Mineração de Argumentos em Redações do Português Brasileiro
Authors: Nau Jonathan , Haendchen Filho Aluizio , Luís Scaranto Dazzi Rudimar
Published: September 2020

Argument mining consists of extracting the argumentative structure of a text. The challenge in finding the argumentative structure lies in: identifying the components of the argument and the relationships that occur between them. Approaches that propose to solve both challenges of argument mining together are known as end-to-end methods. In the literature, some papers were found that perform argument mining in essays, but no papers were found for Brazilian Portuguese. Therefore, in this paper, we propose an end-to-end approach for argument mining of Brazilian Portuguese essays in the ENEM model.
Avaliação da Usabilidade dos Assistentes Virtuais Google Assistant e Siri com Foco em Usuários Idosos
Authors: Carneiro Gorgulho Mendes Barros Tiago , Duarte Seabra Rodrigo
Published: September 2020

Technologies have advanced quickly over the years, and withthat, it becomes increasingly diverse every day. One technologyincreasingly being explored is virtual assistants, which emergedto make it easier for users to interact with their smartphones.Along with this technological advancement, the number ofelderly people has grown exponentially in recent years, and tendto increase even more. Furthermore, this part of the populationis having a greater interest in using these new technologies dueto the ease generated. For this reason, they must be accessible tousers of all ages. This research aims to evaluate the usability ofGoogle Assistant and Siri virtual assistants, focusing on elderlyusers. The main results were that the elderly, even taking longerthan the participants of the other groups evaluated, found thatthe virtual assistants facilitated the accomplishment of the tasks.Some factors that influenced the results of the performance ofthe elderly were the loss of cognitive and motor skills due to ageand previous experience with the use of technology.
Educação 4.0: um Estudo de Caso com Atividades de Computação Desplugada na Amazônia Brasileira
Authors: Eive Silva Deivid , Correa Sobrinho Marialina , Malveira Valentim Natasha
Published: September 2020

This case study aimed to cultivate 21st Century competences and skills related to Education 4.0, such as problem-solving, collaboration and autonomy. To this end, unplugged computing activities were performed with 25 students from four rural schools located in Tapajós-Arapiúns (Brazilian Amazon). As part of the methodology, a maze based on Google's Blockly Games tool was produced, inspired by hopscotch, a popular joke among children. After this case study, a qualitative analysis was performed, and it indicates that Unplugged Computing activities instigate students' skills and competences, as autonomy, communication and teamwork. Besides, this methodology proves to be useful for disseminating Education 4.0 concepts, due to its ease of application and low cost, especially in distant places with few resources.
Expressando Emoções e Sentimentos no Facebook
Authors: Freitas Moro Francielli , Bolan Frigo Luciana
Published: September 2020

Computer systems are increasingly adapting to user needs. Human-machine interaction or human-computer interaction (HCI), as it is known, has discussed sociological approaches in order to design interfaces taking into account user's differences. This article presents an analysis of the Facebook social network based on the evolution of traditional HCI and some of its concepts for feminist HCI, thus exploring its functionality and evaluating it in this context. Surveys based on the concepts of feminist HCI were applied to evaluate this methodology and the impacts on gender diversity in these systems. The results indicate that most users seek more freedom to express themselves at the system and its content.
Adequação de Jogabilidade de Oponente Virtual do Jogo Dinobase 2.2
Authors: Roberto Vieira Fermiano Rodrigues Paulo , Gomes Alves Adriana
Published: September 2020

Dinobase is a game for learning mathematical concepts of exponentiation,specifically the base three. It implements positive discriminationconcepts for children from eight to ten years old. Dinobaseversion 2.0 implemented a virtual opponent that allowed the gameplayto be adapted according to the player’s skills. The evaluationof the game with disabled children and without disabilities pointedout several improvements that were implemented in a new version,which is presented in this article. As a result, it was obtained a gamethat serves its target audience with different levels of skills, keepingthe game competitive, stimulating children while providingknowledge.
Sistema de Coleta e Documentação de Microalgas
Authors: Belli Mateus , Felski Pereira Thiago , Luciano Roesler Rese Alex
Published: September 2020

The multiplication of harmful microalgae in bivalve mollusc fishingregions is a problem that has repercussions for both fishermenand for the economy of the affected region, as these microalgaeproduce toxins that affect humans, ranging from gastrointestinalproblems to, in more extreme cases, cancer that can lead to thedeath of the consumer. Currently, in Santa Catarina, the water isanalyzed to identify the presence of toxins by the Integrated Companyof Agricultural Development of Santa Catarina (CIDASC). Thepresence of toxins in the water creates a temporary embargo onthe sale of mollusks. This embargo usually produces great loss inthe bivalve mollusc culture as far as all the production needs do bediscarded. This work creates a sample collection system that canbe performed by growers rather than experts for the acquisition ofthose samples. These work aims to create an easy-to-use systemenabling the mariculturist to sample water. The purposed processallows the acceleration of the sample collection and analysys. Themanual process needs an expert to come to the field, collect samples,document the samples and take to the lab to analyze. In thisstudy we created an embedded system for sample collection thatautomated the collect field data and link to a image collected bya portable microscope and when a wifi connection is detected itsends the sample to a data server.
Investigação Quanto ao Papel de Círculos Sociais no Desempenho Discente no Ensino Superior Utilizando Análise de Redes Complexas
Authors: Concatto Fernando , Luciano Roesler Rese Alex , De Santiago Rafael , Luis Scaranto Dazzi Rudimar , Maria da Rocha Fernandes Anita
Published: September 2020

The individual behavior of human beings is susceptible to influencesfrom their peers. It is known that contact between individuals,both direct and indirect, can foster or inhibit a considerable rangeof human characteristics and behaviors. This study aims to evaluatethe impact of the social context of undergraduate students on theiracademic performance, understanding "social context"as the averageperformance of classmates socially close to each student. Ourmethodology involves reconstructing the underlying social networkof a class computationally, using data gathered from a questionnaireapplied to the students of the class, and testing the hypothesis thatthe change in the grade of a student can be accurately modeledas a linear function of the differences between the student’s gradeand the mean of their peers’ grades. The results show that defininga student’s social circle as the community they belong to insteadof their set of neighbors allows for the construction of statisticalmodels with significatively higher predictive potential
On a Cooperative Hybrid Algorithm Based on Harmony Search and Differential Evolution for Numerical Optimization
Authors: Nogueira de Sousa Gustavo , Andres Carmona Cortes Omar
Published: September 2020

Hybrid algorithms aim to mix features from two or more evolutionary/swarm algoprove both the exploration and exploitationabilities of the algorithm. Generally, hybrid algorithms prrithmsto imesent the same quality of solution than the canonical ones,in the worst case scenario. However, it is common that hybridalgorithms present better outcomes than the canonical ones. Inthis context, this paper proposes a cooperative hybrid algorithmbased on Harmony Search and Differential Evolution named HS-DE.The algorithm has been tested in five benchmark functions wellknown in the literature. Results have shown that HS-DE presentsbetter solutions than Genetic Algorithms, Particle Swarm Optimization,Differential Evolution, and Harmony Search in all benchmarkfunctions.
A Block-Processing Approach Using Texture Analysis for Fabric Defect Detection
Authors: Antonio Buschetto Luiz , Vieira Roque Felipe , Casagrande Luan , Oliveira Weber Tiago , Cechinel Cristian
Published: September 2020

The quality control is an essential step in fabric industries. Detectdefects in the early stages can reduce costs and increase the qualityof the products. Currently, this task is mainly done by humans,whose judgment can be affected by fatigue. Computer vision-basedtechniques can automatically detect defects, reducing the need forhuman intervention. In this context, this work proposes an imageblock-processing approach, where we compare the Segmentation-Based Fractal Texture Analysis, Gray Level Co-Occurrence Matrix,and Local Binary Pattern in the feature extraction step. Aimingto show the efficiency of this approach for the problem, these resultswere compared with the same algorithms without the blockprocessingapproach. A Support Vector Machine optimized by Grid-Search Algorithm was used to classify the fabrics. The databaseused, which is available online, is composed of 479 images fromsamples with defects and without it. The results show that thisblock processing approach can improve the classification results,achieving 100% in this work.
InTourMobile: uma Ferramenta de Autoria para o Desenvolvimento de Narrativas para Roteiros Turísticos
Authors: Eduardo Costa Laurindo Luis , Rodrigues de Moura Ivan , De Oliveira Nolêto Carleandro , Sergio da Silva Flavio , Luiz Almeida Cardoso André
Published: September 2020

Currently, tour guides can be implemented through mobile technologiessuch as smartphones and wearable devices. The penetrationof these technologies into people’s daily lives has made it possibleto implement more sophisticated and personalized services, revolutionizingthe tourism industry. However, the process of developingsuch applications is complex and involves the knowledge of variousexperts, such as programmers and designers. So this article devisedan authoring tool titled inTourMobile, which allows non-expertpeople to develop their mobile tour guides easily and intuitively.The usability of the designed tool was evaluated, in which it wasobserved its efficiency to assist in the development of mobile tourguides.
PhysioPong: Serious Game Aplicado ao Processo de Reabilitação Física de Amputados de Membro Superior
Authors: Follmann Jone , Domingues Saraçol Júnior Julio , Marcelo Hoff do Amaral Érico , Teixeira Paiva Bryan
Published: September 2020

The present study describes the proposal a solution computingbased on the context of the Serious Game, to support in the processof physical rehabilitation of patients amputees of upper limbs.Therefore, when we developed a serious game PhysioPong, weexpect that the proposal serves as a training tool, integrated intothe technical monitoring of electromyography signal to assist inthe early stages of the rehabilitation process of these patients. Thistraining as physically strengthens the muscles so that they canlater be protected, as well as provide the patient with a motivatorenvironment for the treatment. Furthermore, another tool functionalityis to create an environment for physical therapists to followthe progress of these individuals over the rehabilitation process.Nowadays, serious games have had been employed as a tool thatcan be used for several purposes, bringing a ludic experience ofthe players. The PhysioPong was developed by using the Unitygame engine, combined with a sensor node module that aims tocollect data from the myoelectric signals generates by a muscularcontraction of an individual, being possible to perform actions ina game. To further measure the present purpose have been performinga usability test, furthermore scientific experiments withamputees patients. These experiments were carried together byphysiotherapists of the physic rehabilitation service. The evaluationperformed about the tool indicated promising results with ausability and mechanic appropriated, basing the use of PhysioPong.
Desenvolvimento de uma Interface de Monitoração Remota para o Sistema Robótico ROBIX, Integrando o Protocolo MQTT e oROS
Authors: Zolett Daniel , Rafael Garcia Ramirez Alejandro
Published: September 2020

The history of the industry has been undergoing many changes,improving production methodologies and setting new goals. Theindustry is currently facing a new challenge called Industry 4.0.This is the result of technological developments in areas such asthe Internet of Things (IoT), Information and Communication Technology(ICT) and Automation Systems. The goal is to define amore dynamic and efficient production line, improving productionin terms of resources and time. However, in the current scenario,there are some difficulties to overcome. One of these difficultiesis the existence of various communication protocols, being manyproprietary and closed, which hinders the interoperability betweenmachines. For this reason, there is a need to standardize communicationprotocols, facilitating the integration of all elements in theproduction line. Given this context, this paper presents the integrationof the MQTT protocol with the ROS tool to control a roboticarm viaWeb. The angles of the robot links movements are informedvia web interface. The interface communicates with the robotic armvia the MQTT protocol. The arm control software was developedusing the ROS tool as well as its simulation environment. The softwareis implemented on the Raspbarry PI 3 development board andthe robot servo motors are driven by the Arduino Mega kit processor.Data exchange between these elements is done through serialcommunication. Tests were designed to assess communication latencyto validate the feasibility of using the MQTT protocol for thisscenario. The tests proved that the latency average of the MQTTprotocol, considering the worst case scenario, was 300 milliseconds,which is within the range of the studies consulted in the literature.
Interface em Linguagem Natural para uma Sublinguagem de Câncer de Pele
Authors: Henrique Pereira Yago , Renata Sachs Camerlengo de Barbosa Cinthyan , Luiz Villela Marcondes Mioni José , Alexandre Artoni Arthur , Duílio Brancher Jacques
Published: September 2020

This work presents an interface for a Skin Cancer Sublanguage,which uses a non-SQL oriented database technology, called MongoDB,implementing the concept of Natural Language Interfaceto Databases (NLIDB). When compared to relational databases,No-SQL (Not Only SQL) mechanism is more scalable, it providessuperior performance and addresses several issues that a relationalmodel is not designed to solve. All obtained words and their variationsare labeled and stored in a MongoDB database, thus allowingcustomized queries to search and join morphemes. A dictionarywill be used to build dialogs, narratives and diagnoses in a SeriousGame with educational purposes that in addition obtains accurateanswers to the project’s database.
Um Modelo para Auxiliar a Descoberta e Classificação de Conteúdo para Ambientes Virtuais de Aprendizagem
Authors: Martins Feitosa Rafael , Aparecido Dim Cleyton , Pereira Mota Marcelle , Magalhães de Morais Jefferson , Viegas Junior Raimundo , Belo Orlando
Published: September 2020

The massive amount of information currently available on the Internetmakes it difficult for teachers to curate quality educationalcontent or to select material for self-regulated study by students.Aiming to facilitate these steps in the teaching and/or learningprocess this article presents an approach to assist the discovery ofeducational content from the hybrid recommendation system andlater classification from the feedback evaluation with sentimentanalysis techniques trained with the Re-Li corpus. This paper describesthe proposed model, the implementation of a prototype andits application in non-formal training involving 13 participants.
Avaliação do Impacto Emocional e de Desempenho em Jogos Sérios para o Desenvolvimento do Pensamento Computacional na Educação Inclusiva
Authors: Gonçalves do Vale Breno , Do Carmo Nogueira Tiago , Clayr Santos Ferreira Naidson , Rudolfo Diedrich Ullmann Matheus
Published: September 2020

Serious games can improve teaching-learning processes by attracting,inspiring and motivating student interest. Through the applicationof educational games, students develop skills that encompasscomputational thinking. Such skills enable students to solve realproblems. Thus, this article aims to evaluate the impact of the insertionof serious games for the teaching of basic concepts aboutcomputational thinking, analyzing and correlating the emotionaland performance aspects that contribute to a better interactionamong students of inclusive education. For this purpose, two seriousgames were selected and nineteen students with special needswere recruited, proposing to perform a set of tasks in each game,measuring the emotional aspects through the Geneva Emotions andperformance wheel. The results demonstrate a strong correlationbetween positive emotions and good student performance, thuslowering the barriers to interaction, significantly impacting theaccomplishment of tasks and gameplay of games.
Avaliação de um Jogo para o Ensino de Gerência de Riscos: uma Experiência com o Modelo de Avaliação MEEGA+
Authors: Cezario da Silva Rodrigo , Frank Rios Fernandes Déryk
Published: September 2020

Educational games are used as practical learning tools. However,most of the games do not have evaluations that present learningresults that confirm their effectiveness. Therefore, we aimed toevaluate the game The Risk Analysis Theory aimed at the area ofrisk management knowledge, using the model called MEEGA+ toevaluate the perception of learning and experience of theplayers. The result of the evaluation presents indications that thegame is effective in learning and provides fun to the playersguaranteeing their use of the game as a learning tool, however,some points of improvement of the game have been highlighted.This study also presents the result of the evaluation ofparticipants 'level of knowledge about risk management,allowing us to observe that the intervention with gamblingprovided an increase in participants' knowledge about the topicaddressed.
TheBug: Software Mobile para Identificação de Insetos-Alternativa para Catalogação e Identificação de Insetos na Comunidade Rural e Acadêmica
Authors: Guimarães Sales Gabriel , Cardoso Adeilson , Júnior Edson
Published: September 2020

For farmers, identifying pests present in crops as well as their natural enemies, without the aid of teaching materials, is of great difficulty. Moreover, the lack of interactive tools to study subjects related to Entomology in academia is a fact. Seeking an alternative to such problems, this article presents the TheBug, mobile software that aims to assist farmers and the academic community by facilitating the identification of pests and natural controlling agents present in crops, without the need to connect to the network, and make the study of the disciplines of entomology and biology practical and dynamic at the fundamental, medium and higher levels. Through the application, at no additional cost, it is possible to obtain information about various species of the Hexapoda subphylum, such as physical characteristics, popular or scientific name, main impact on crops and possible forms of control.
Vogons, the Invaders
Authors: Henrique dos Santos Kutni Pedro , Danielevig Pereira Dias Gustavo , Mathaus Bischof Josef , Feldhaus Gobetti Vinícius , Pessini Adriano , Ricardo Uriarte Luiz
Published: September 2020

Game development is a recognized and documented approach toimproving computer programming learning. This article describesthe redesign of the popular game Space Invaders, using Python asthe programming language and libraries Arcade, Random, Os andMath. The game developed has modifications in various aspects, liketextures, jogability, scores and story. The motivation for the remakewas the desire to bring a nostalgic experience for the player,combined with learning about game development. Considering thatit was built by people with no previous experience in gamedevelopment, the proposed objectives were achieved, with thegame having been completed. The Arcade library proved to be easyto use and productive. As future work, an online ranking will bedeveloped, in addition to generating bonuses for the player and theuse of design patterns.
Big Data Visualization Methods Applied in the Context of Neonatal Mortality
Authors: Eduardo Beluzo Carlos , Rodrigues Pimentel Lucas , José de Carvalho Tiago
Published: September 2020

Neonatal mortality is a worldwide problem and its reduction isof common international interest. Around 46% of all deaths inthe world happen to infants up to five years of age, and most ofthose deaths is concentrated in the first few days after birth. InBrazil, although having data sources such as IBGE and DATASUS,there is no platform that provides an intuitive way of visualizingthis data. Thus, this work proposes the use of specialized visualanalysis tools for big data, such as Python libraries Dash by Plotly,NumPy and Pandas, in order to facilitate the understanding ofpublic information related to neonatal mortality, which can lead tothe mitigation of the problem.
Apresentação das Mecânicas de um Jogo Desenvolvido com Arcade
Authors: Augusto Ueno Otto Vítor , Reinaldo Flores Alisson , Helena Weidmann Manuela , Claudio Elias Kauan , De la Rocha Ladeira Ricardo , Fernando Luiz Aldelir , Pessini Adriano
Published: September 2020

The purpose of this paper is to describe the mechanics and logic ofBombanimal’s creation, a game inspired by the classic Bombermanand created using the Python programming language combinedwith the 2D game development library Arcade. The game has uniquefeatures such as the skills of the characters and its visual theme.As such, the paper discusses how the game was implemented andwhat Arcade classes, methods, and features were used, in order toencourage other programmers to use Arcade on their own games.
Sistema de Avaliação de Pavimentos Utilizando Visão Computacional
Authors: Menezes do Nascimento Nathan , Fernando Delboni Lomba Luiz
Published: September 2020

Roads are of fundamental importance to society today and in Brazilit is the most widely used mode of transport. However, most of thehighways present conservation problems and require maintenance.The evaluation of the pavement is made visually in loco or by meansof filming. The filming ensures greater safety for those responsiblefor the evaluation and reduces operational costs, but consumes alarge amount of specialist time in the analysis of the images andrecords of points that need repair. Based on this context, the purposeof thiswork was to provide a system that helps in the evaluation anddetection of defects in pavements from the manipulation of images.The system consists of two parts, one that allows the user to insertmarkings in the parts of the video in which the defects are identifiedand another that allows consultation of the data obtained in videoprocessing. It is expected that the system will provide automationof the pavement evaluation process and greater security,as well asreducing the time it takes to analyze the videos.
Planetário em Realidade Virtual: Uma Ferramenta para Ensino de Astronomia
Authors: Dos Santos Ritta Anderson , Rodrigues Cabral Jorge Luigui , Da Silveira Siedler Marcelo
Published: September 2020

Astronomy may be recognized as an interdisciplinary sciencewith great educational potential, but certain content requiresspecific structures for better learning; In this scenario the use ofa computational tool such as virtual reality can contribute tooptimize the teaching of this type of content. This paper presentsthe study on the implementation and use of a virtual planetariumin immersive environment, aiming to evaluate, respectively,familiarity and usability in the use of the tool. Methodologicallycharacterized as qualitative research, the data collection usedphysical questionnaires applied to student users. The results showedthat the developed tool had an excellent evaluation regarding itsusability through the results obtained in the SUS questionnaire.
Traditional use of Dasylirion acrotrichum in the Construction of Floral Arches for the Festival of San Jerónimo, in Coatepec, Veracruz, Mexico
Authors: Torres-Martínez Guadalupe , López Binnqüist Citlalli , Silva Rivera Evodia , Velázquez-Rosas Noe
Published: September 2020

In Mexico, floral arches are commonly constructed as offerings in religious festivals. The plants required for fabrication of these arches are currently in great demand, which could affect the species involved. The objective of this study was to document the traditional management of Dasylirion acrotrichum (cucharilla) as used in the construction of floral arches during a festival of great religious and community significance held every year in Coatepec, Veracruz, Mexico. The construction method of floral arches was documented, and the possible repercussions of this practice on the wild populations of this species were analyzed. In Coatepec, the mayordomía is a non-rotational traditional organization system, through which each arch is produced. This system guides the construction activities of the floral arch, which are shared among different actors with various degrees of experience and responsibility. We reveal that between 250 to 270 plants (ultimately using around 60% of this number) are used to produce the main arch. Likewise, it was documented that during plant collection there are rules observed to avoid extraction of juvenile specimens, especially those that do not have the quantity or quality of leaves required. The social, ritual, and ecological basis of the mayordomía represent an opportunity to build a strategy aimed at regulating the extraction of culturally relevant plant species, and it can also help to improve collection techniques and to encourage sustainable management. That is why we argue that Dasylirion acrotrichum must be understood and studied from a systemic, interdisciplinary perspective.
Pineapple Among the Indigenous Nambikwara: Early Twentieth Century Photographic Documentation from Central Brazil
Authors: Coimbra Carlos E. A. , Welch James R.
Published: September 2020

In the region that is today Brazil, presence of pineapple in the food of Indigenous peoples was noted early by the Portuguese and other European explorers, who described the presence of the plant in Indigenous gardens and around villages along the Atlantic coast and in the interior. The objective of this paper is to contribute to the ethnobotany and history of pineapple in South America, particularly Central Brazil, based on the first known photographic documentation of the use of pineapple in the diet of an Indigenous society: the Nambikwara in the northwestern region of the State of Mato Grosso, Brazil. The pineapple’s presence in Nambikwara villages immediately caught the attention of the early explorers and fermented Nambikwara “pineapple wine” enjoyed enormous success. The photographic record presented here was produced on the occasion of one of the first scientific expeditions sponsored by the Brazilian government in the early twentieth century, the Commission for the Construction of Telegraph Lines from Mato Grosso to Amazonas (better known as the “Rondon Commission”). All photos presented here were taken by Major Thomas Reis during a visit to the Nambikwara-Mamaindê village, in the Cabixi River region, in northern Mato Grosso, during the expedition undertaken from 1913 to 1914. They show many details of how pineapples (Ananas ananassoides) are processed, including the familiar setting of a child playing beside her working mother. As these four images suggest, unexplored archival materials offer great potential for conducting visual historical ethnobotanical studies of topics that are otherwise invisible in the academic record.
Os programas de pós-graduação da área I da Universidade Federal da Bahia e a relação com o repositório institucional
Authors: Santos Davilene Souza , Rosa Flávia Goulart Mota Garcia
Published: September 2020

Este artigo apresenta o resultado de pesquisa realizada com os programas de Pós-Graduação da Área I da Universiddae Federal da Bahia e o Repositório Institucional, no que diz respeito a disponibilização de conteúdo. Com uma abordagem quali-quantitativa os procedimentos de coleta de dados incluíram: a aplicação de um questionário aos coordenadores dos programas, observação sistemática das homepage dos programas e verificação da disponibilização de conteúdo no repositório. Constatamos que oito programas dos 24 analisados têm atuado de forma satisfatória junto ao repositório, ao disponibilizarem mais de 100 documentos no espaço destinado à sua comunidade acadêmica no repositório.
Ciência da Informação e Bibliometria
Authors: Costa Maria Elizabeth O. , Oliveira Dalgiza Andrade
Published: September 2020

A produção científica de uma área de conhecimento ou sobre uma temática específica é condição sine qua non para fortalecer e ampliar os resultados das pesquisas desenvolvidas. Da mesma forma que produzir é importante, também é preciso adotar estratégias para medir essa produção, considerando diferentes aspectos e variáveis, incumbência essa atribuída ao campo da Ciência da Informação, por meio de técnicas bibliométricas. Mesmo que os estudos bibliométricos sejam importantes, muitas temáticas recentes carecem de estudos que quantifiquem os aspectos inerentes à produção científica da temática, como acontece com a Educação a Distância. Portanto, questiona-se com que frequência esse tema tem sido abordado na literatura nacional, na área da educação, no decorrer dos tempos. Este estudo objetiva apresentar uma análise quantitativa da produção científica em Educação a Distância no Brasil, publicada em artigos científicos nos periódicos nacionais da área de Educação. Para tanto, apresenta os fundamentos teóricos e conceituais da Ciência da Informação e suas relações com a Bibliometria e alguns fundamentos históricos da Educação a Distância; identifica os periódicos classificados nos estratos A1, A2 e B1; e, por fim, analisa a distribuição das publicações, considerando a evolução temporal dos artigos, a frequência de artigos por número de revista e o número de artigos, considerando o Qualis Periódicos. Metodologicamente, a pesquisa se caracteriza como descritiva, com procedimentos de pesquisa bibliográfica e documental e utiliza técnicas bibliométricas. Os resultados indicaram uma amostra de 206 artigos, distribuídos entre 95 periódicos.  Percebeu-se uma tendência de crescimento da produção científica sobre Educação a Distância, com acentuada elevação no período de 2006 a 2011. Esse crescimento está relacionado à criação das políticas públicas e planos governamentais em prol dessa modalidade de educação no Brasil. Portanto, concluiu-se que os fatos históricos e os investimentos relativos à Educação a Distância são fatores que interferiram na produção científica sobre esse tema na área da Educação.
Feasibility of a Very Low Calorie Diet to Achieve a Sustainable 10% Weight Loss in Patients With Nonalcoholic Fatty Liver Disease
Authors: Scragg Jadine , Avery Leah , Cassidy Sophie , Taylor Guy , Haigh Laura , Boyle Marie , Trenell Michael I. , Anstee Quentin M. , McPherson Stuart , Hallsworth Kate
Published: September 2020

INTRODUCTION:

Nonalcoholic fatty liver disease (NAFLD) is the most common liver condition worldwide. A weight loss goal of ≥10% is the recommended treatment for NAFLD; however, only a minority of patients achieve this level of weight reduction with standard dietary approaches. This study aimed to determine whether a very low calorie diet (VLCD) is an acceptable and feasible therapy to achieve and maintain a ≥10% weight loss in patients with clinically significant NAFLD.

METHODS:

Patients with clinically significant NAFLD were recruited to a VLCD (∼800 kcal/d) intervention using meal replacement products. Anthropometrics, blood tests (liver and metabolic), liver stiffness, and cardiovascular disease risk were measured at baseline, post-VLCD, and at 9-month follow-up.

RESULTS:

A total of 45 patients were approached of which 30 were enrolled 27 (90%) completed the VLCD intervention, and 20 (67%) were retained at 9-month follow-up. The VLCD was acceptable to patients and feasible to deliver. Intention-to-treat analysis found that 34% of patients achieved and sustained ≥10% weight loss, 51% achieved ≥7% weight loss, and 68% achieved ≥5% weight loss at 9-month follow-up. For those completing the VLCD, liver health (liver enzymes and liver stiffness), cardiovascular disease risk (blood pressure and QRISK2), metabolic health (fasting glucose, HbA1c, and insulin), and body composition significantly improved post-VLCD and was maintained at 9 months.

DISCUSSION:

VLCD offers a feasible treatment option for some patients with NAFLD to enable a sustainable ≥10%, weight loss, which can improve liver health, cardiovascular risk, and quality of life in those completing the intervention.