Claudio Farias - Academia.edu (original) (raw)

Papers by Claudio Farias

Journal of Sports Science and Medicine

This study aimed to examine how a novice Physical Education teacher unfolded her pedagogical prac... more This study aimed to examine how a novice Physical Education teacher unfolded her pedagogical practice as a facilitator of learning during a hybrid Sport Education/Step-Game-Approach volleyball season; and to investigate students’ perceptions about their lived learning experiences and active involvement in building their own learning process. For this purpose, an insider action-research design was implemented throughout one school term (20 lessons of 45 minutes each in total). Twenty-five students (aged between16 and17 years old), enrolled in the 12th grade at a Portuguese high school took part in this investigation. The novice teacher, who held two years of professional experience, assumed the dual role of teacher-researcher, facilitating an in-depth understanding of the complexity featuring of the teaching-learning process. Qualitative data were collected using multiple data sources (i.e., teacher’s lesson plans and field diary, and student’s focus-group interviews), and analyzed u...

Wine Economics and Policy

The purpose of this paper is to investigate the purchase process of the sparkling wines female co... more The purpose of this paper is to investigate the purchase process of the sparkling wines female consumers, in order to understand the variables that influence the purchase process of this product. The consumer behavior in the purchase decision process is one important topic of the marketing studies, to the extent that it helps to explain how decisions are made and what elements determine them, it can support strategic marketing decisions. The importance of gender segmentation has been highlighted in several studies; in addition, women have made most purchases and their influence in purchase decision has been highlighted. This study uses data from a survey carried out on a representative sample of 1,003 female consumers from Brazil. It was used a five levels Likert scale; Independent tests and correspondence analyses were performed. The study could identify the five main factors influencing the choice. Also, the results contribute to elucidate points such as confidence to choose and c...

Frontiers in Sports and Active Living

The purpose of this article is three-fold: (1) revisit the concept of life skills to position phy... more The purpose of this article is three-fold: (1) revisit the concept of life skills to position physical literacy as a social justice life skill; (2) make the argument that physical literacy is particularly relevant within a critical positive youth development perspective; and (3) propose a novel critical praxis for developing physical literacy amongst youth. When considering emergent social issues, youth programming has the potential to integrate concepts from a range of theoretical frameworks, which may help youth transform into social change activists and competent movers. Such critical perspectives may guide sport and physical education programming as contemporary society poses numerous challenges concerning youths' diverse emotional, mental, physical, and social needs. In order to advance knowledge and practice, we urge researchers and practitioners to rethink the way sport and physical education has been traditionally conceptualized. Ultimately, we propose that educating ind...

Minicursos da ERSI-RJ 2019 - VI Escola Regional de Sistemas de Informação do Rio de Janeiro, 2019

Sustainability, 2021

An emphasis on providing authentic and inclusive educational experiences to students has been rec... more An emphasis on providing authentic and inclusive educational experiences to students has been recommended in many educational systems as essential for motor, social, and psychological development. Despite the focus of recent studies on the preparation of physical education (PE) teachers for entering the profession, little attention has been paid to beginner teachers and how these teachers can promote educationally rich PE experiences. Therefore, this study sought (1) to understand how a novice PE teacher implemented the cooperative learning model and shared the responsibility for teaching–learning processes with students; and (2) to examine students’ perspectives about their cooperative experiences and student-centered learning. Participants included 25 high school students and one novice PE teacher. Through an action-research design, data were collected by utilizing three qualitative techniques and analyzed using thematic analysis. CL was found to be a complex model that needed tim...

Brazilian Journal of Experimental Design, Data Analysis and Inferential Statistics, 2021

Anais Estendidos do X Simpósio Brasileiro de Engenharia de Sistemas Computacionais (SBESC Estendido 2020), 2020

This work proposes a new methodology to create groups in intervehicular networks as a basis for c... more This work proposes a new methodology to create groups in intervehicular networks as a basis for complex applications involving smart vehicles. We proposed a distributed protocol whose purpose is to build a higher number of groups in less time, keeping the vehicles grouped for most of their journey. We implement our proposal in two versions. The first one considers only the interaction among vehicles. The second includes a group merge functionality. We validate both versions of our protocol using simulation with real traffic data. We evaluate the amount of created groups and their persistence and size.

Journal of sports science & medicine, 2018

The teaching and learning of games and sport-based activities has historically been the dominant ... more The teaching and learning of games and sport-based activities has historically been the dominant form of the physical education curricula. With an interest in providing to students meaningful and culturally situated sporting experiences, Sport Education is probably the most implemented and researched pedagogical model worldwide. However, although there is considerable evidence that the model as a curriculum approach can benefit the development of social goals and healthy sport behaviors, not a single study as to date examined students' game-play development beyond participation in single and isolated teaching units. Therefore, the purpose of this study was to examine students' development of Game Performance and Game Involvement during participation in three consecutive Sport Education seasons of invasion games. The participants were an experienced physical education teacher and one seventh-grade class totaling 26 students (10 girls and 16 boys). Using the Game Performance A...

The unexpected growth of the world population and the exodus from rural areas to the city lead to... more The unexpected growth of the world population and the exodus from rural areas to the city lead to a food insecurity concern. Also, a strike of truck drivers caused significant impacts on the distribution of food in the city of Rio de Janeiro and other cities in the country. The unexpected growth of the population and the strike of truck drivers incident are examples of food insecurity in many cities in the country. To address the food insecurity problem, solutions guided by the Internet of Things paradigm such as smart farms have been gaining increasing attention. However, food production in smart farms is still a challenge. To surpass this challenge, a possible solution is to map the information regarding the producers of the state of Rio de Janeiro, and analyze this data together with other sources, reducing the difficulties in the distribution of food products, and allowing information exchange, for the development of sustainable cultivation. In this paper, a small analysis of th...

Smartphones are key devices in the Internet of Things paradigm. Social networking services on the... more Smartphones are key devices in the Internet of Things paradigm. Social networking services on the Internet can use smartphones applications as data providers. The data gathered from sensors and data harvested from social networking services can be used by different applications for providing context-aware services. However, the excellence of the data oriented services depends on the Data quality (DQ). DQ is critical for decision making mechanisms. We present the problem related to DQ when dealing with social and sensor data. Also, we present and explore a framework whose objective is to evaluate and control DQ aspects when dealing with social and sensor data.

As domestic Internet of Things (DIoT) devices become more popular, the number of devices connecte... more As domestic Internet of Things (DIoT) devices become more popular, the number of devices connected to the Internet increases. It may also represent a risk to the end-user’s security and privacy. The infected devices can be used in DIoT botnets affecting the Internet’s stability. Although there are efforts to enhance IoT security, such as RFC 8520, there still needs for improvements in the DIoT context. To ensure DIoT security, this paper proposes INXU, an extension of RFC 8520 that enables blocking traffic related to well-known malicious activities. INXU introduces the concept of Malicious Traffic Description, a data model to describe traffic related to malicious activities, and enables Security Operation Centers to protect domestic networks.

O presente artigo apresenta, a partir de uma discussao institucional, os elementos formadores da ... more O presente artigo apresenta, a partir de uma discussao institucional, os elementos formadores da industria vitivinicola do Rio Grande do Sul (RS), historicamente localizada entre 1875 e 1930, com a chegada dos colonos italianos ao Estado. O objetivo e apresentar a importância de aspectos institucionais e historicos como elementos explicativos tanto da formacao das firmas vitivinicolas no Estado quanto da coordenacao de decisoes do sistema economico da epoca (que influencia as atividades empresariais do setor ate os dias atuais). Metodologicamente, os conceitos se articulam a partir da logica da Nova Economia Institucional (NEI), utilizando-se de um modelo da Teoria dos Jogos, que sintetiza algumas das possiveis escolhas dos agentes economicos e seus resultados de equilibrio. Para a construcao dos payoffs , utilizou-se uma construcao esquematica, haja vista nao existirem dados estatisticos ou economicos confiaveis para a epoca. Dentre os resultados, percebe-se a importância do papel ...

The central purpose of this dissertation was to conduct an in-depth year-long action research int... more The central purpose of this dissertation was to conduct an in-depth year-long action research intervention for examining teaching and learning in four consecutive seasons of Sport Education. The specific objectives comprised the examination of the mediation strategies used by the teacher for developing the student-coaches' positive and inclusive leadership and ability to conduct instructional interactions that involved teammates actively in problem-solving processes and construction of the learning experience. An action research design sustained by a longitudinal data collection protocol was used for its epistemological potential to cope with the shifting and ongoing engaging nature of the relational dynamics and instructional and knowledge development in Sport Education. Cyclical and intertwined data collection and analysis employing video observations, a field diary, and group interviews were used to analyse the changeable development of the teaching-learning process. This dissertation showed that the application of protocols for coaching preparation enabled the development of learning outcomes through peer-led instruction. The proactive building of inclusion upon the pedagogical structures of Sport Education helped promoting a more equitable learning context. The studentcoaches' ability to actively involve teammates in analysis and discovery-based processes were noticed essentially from the third season onwards, which overlapped with students' development of higher-order tactical content and more adaptive game-play. The longitudinal design along with the thematic grouping of games enabled the transfer of knowledge across seasons. The action research design was critical for allowing the continuous and contingent (re)adjustment of the teacher's mediation strategies to the ongoing progresses. It also made viable the reshaping of social interactions between learners through repeated revisit of and reflection on their ideas of inclusion and equity.

Retos, 2020

To date no research has investigated the key mediation role of PE department heads in the success... more To date no research has investigated the key mediation role of PE department heads in the successful implementation of Positive Youth Development (PYD) programmes. Thus, the purpose of this study was to examine the effects of a PYDbased intervention in the learning trajectory of a PE department head leading the implementation of a PYD programme. A PYD intervention was conducted over four months, which included several cycles of theoretical inputs interspersed with a series of PYD field applications. The principal participant in this study was an experienced PE department head who was supervising the work of 63 primary school PE teachers. Findings showed the PE department head progressed from a perspective of PYD as an inherent and naturally emerging outcome to an understanding of PYD as more structured programmes of activities that include a deliberate approach. Further research is needed to uncover effective mediation strategies that can best support the implementation of PYD at an institutional level.

Anais do Workshop sobre as Implicações da Computação na Sociedad (WICS 2020), 2020

Brazilian Graduate Programs are evaluated by a specific foundation, CAPES. This evaluation qualif... more Brazilian Graduate Programs are evaluated by a specific foundation, CAPES. This evaluation qualifies the respective program with a grade, and this directly influences the permissions and funds assigned to this program, such as having a doctorate level, grading 4 or higher. One of the indicators is the student body, as an external variable outside the control of the program. Based on the Design Science Research methodology, we present a research on the construction of an artifact that clears up the selection of candidates for the programs, categorizing them according to the profiles of previous students, based on descriptive statistics and data analytics.

International Journal of Advanced Engineering Research and Science, 2019

This article presents a feasibility study to use home automation as a tool to manage and reduce h... more This article presents a feasibility study to use home automation as a tool to manage and reduce household electricity cost. It is a result obtained after checking different academic's research articles about domotics and the perception that there is a gap when it is related with home automation systems that perform the management of energy resources. To many academic's researches talk about the comfort provided by home automation, but a few about managing and optimizing the use of energy resources. At the end, some points and suggestions for future research are raised to complement this article.

Revista Portuguesa de Ciências do Desporto, 2016

The Sport Education Model is likely the most prominent second-generation curriculum alternatives ... more The Sport Education Model is likely the most prominent second-generation curriculum alternatives to the often-dominant teacher-centred direct instruction approaches. The main goal of this paper was to conduct a systematized analysis of two decades of research on sport education in order to identify critical conceptual and methodological concerns and inform future directions for practice and research toward development of a more matured model. The scope of this essay includes a contextualization of the contemporary shift from teacher-centred to student-centred approaches for teaching physical education; the conceptual roots, structural features, and educational goals of sport education; the thematic and methodological examination of empirical research on the model; and conclusions and future avenues for research. Two main areas of intervention were identified: the need to safeguard competency development through coaching preparation protocols and in-depth examination of instructional interactions conducted by student-coaches; and the examination of, and intervention upon, the power and relational dynamics operation during peer interactions that either restrain or facilitate students' access to more equitable and inclusive participation. It is suggested that the adoption of a transformative agenda through action research designs, ethnographic, case study, and longitudinal data collection protocols are indispensable key vehicles for enhancing the model.

European Physical Education Review, 2017

This study was the first in sport education to provide a yearlong, in-depth examination of the sc... more This study was the first in sport education to provide a yearlong, in-depth examination of the scaffolding processes used by a teacher during student participation in four consecutive seasons. Given the peer teaching format of the learning activities and curriculum ownership allocated to students, a focus was placed on the preparation of the students in the role of team coaches to conduct instruction in student-centred interactions (active engagement of teammates in problem-solving, discovery, and the construction of knowledge). Twenty-six seventh grade students participated in four consecutive seasons of sport education (basketball, handball, soccer, and volleyball). The research involved four action-research iterative cycles of planning, acting, monitoring, and reflecting. Data collection involved semi-structured interviews with teams and exclusively with the student–coaches, lesson observations, and a field diary kept by the first author, who assumed the role of practitioner–rese...

Journal of sports science & medicine, 2016

This study conducted a comparative analysis of students' knowledge development on athletics i... more This study conducted a comparative analysis of students' knowledge development on athletics in Sport Education and in a Direct Instruction unit taking into account sex and initial skill level. The participants were an experienced Physical Education teacher and two sixth-grade classes totaling 47 students (25 boys and 22 girls). Each class was randomly placed in either Sport Education or Direct Instruction classes and participated in 20, 45-minutes lessons focused on shot put, hurdles and triple jump. Knowledge on athletics was assessed through a 25-items written and video-based test. The inter-group differences and improvements across time in the knowledge test were analyzed through the Mann-Whitney and Wilcoxon tests, respectively. There were significant knowledge improvements in both instructional approaches irrespective of students' gender and skill level. In Direct Instruction, the type of task organization, the high rates of repetition of movement patterns and feedback ...

Proceedings of ICT for Sustainability 2016, 2016

Smart Grids are smart networks of energy transmission and distribution that enable a two-way comm... more Smart Grids are smart networks of energy transmission and distribution that enable a two-way communication between the consumer and distributor. Smart Grids are important for energy sustainability and environmental preservation avoiding the non-renewable energy consumption since decentralized suppliers are able to supply energy demands through renewable energy. It will be possible to encourage renewable energy consumption using a dynamic pricing adopting different prices to each energy source. Some network and security issues arise with that network communication like if it will be able to calculate the price in a suitable time interval. So a challenge is to analyze the impact of ICT on this operation. We analyzed the impact of a dynamic pricing on consumption changes and energy generation, and the delay time to calculate the price in a clustered network architecture.