Currently, datasets from pedological projects are isolated in silos under the most varied formats... more Currently, datasets from pedological projects are isolated in silos under the most varied formats. The objective of this work is to present an approach and experiments based on ETLH and FAIRification workflows capable of loading, cleaning, transforming, identifying and harmonizing large masses of legacy data on the OpenSoils platform. Additionally, we discuss the main steps of the FAIRification process. Resumo. Atualmente, os datasets oriundos de projetos pedológicos se encontram isolados em silos sob os mais variados formatos. O objetivo deste trabalho é apresentar uma abordagem e experimentos baseados em workflows ETLH e de FAIRificação capazes de carregar, limpar, transformar, identificar e harmonizar grandes massas de dados legados na plataforma OpenSoils. Adicionalmente, discutimos as principais etapas do processo de FAIRificação.
Anais do ... Simpósio Brasileiro de Informática na Educação, Nov 3, 2014
This research aims to verify the impact of motivational factors in the use of a virtual learning ... more This research aims to verify the impact of motivational factors in the use of a virtual learning environment, specifically; the factors perceived enjoyment, perceived usefulness and perceived ease-of-use. The environment studied was an initiative of Digital Literacy organized by Brazilian Ministry of Education: e-Proinfo, which is offered to elementary school students. In this multi-method research, a case study was applied in a private school at Rio de Janeiro, followed by an experiment with 20 students of this school. Qualitative data collected from the case study allowed us to endorse some of the experiment results on the Quantitative Phase. Previous researches indicate that teenagers tend to be motivated by playful environments, pointing to the importance of perceived enjoyment factor. Nevertheless, in this experiment, it was observed that perceived usefulness was the motivational factor with greatest impact on intention of use.
Pedology is the science that studies the soil. Currently, datasets from pedological projects are ... more Pedology is the science that studies the soil. Currently, datasets from pedological projects are isolated, disconnected and dispersed in the Web in the most varied formats and classifications. This work presents an approach and experiments based on ETLH workflows capable of being coupled to the OpenSoils platform to load, clean, transform and harmonize large amounts of legacy soil data, annotating with retrospective provenance on operations and data. The resulting database expands the accessibility, sharing and reuse of harmonized pedological data. Resumo. A pedologia é a ciência que estuda o solo. Atualmente, os datasets oriundos de projetos pedológicos se encontram isolados em data lakes sob os mais variados formatos e classificações. O objetivo deste trabalho é apresentar uma abordagem e experimentos baseados em workflows ETLH capazes de serem acoplados à plataforma OpenSoils para carregar, limpar, transformar e harmonizar grandes massas de dados legados, agregando descritores de proveniência retrospectiva sobres operações e dados. O banco resultante amplia a acessibilidade, localização, compartilhamento e reúso de dados pedológicos harmonizados.
This article brings to light analyses of student's social networks in order to comprehend how soc... more This article brings to light analyses of student's social networks in order to comprehend how social interactions occur in schools. Furthermore, the present research intents on verifying if social groups affect student's performance. In view of this reality, this work presents the analysis of 40 social network students with the objective of measuring the degrees of interrelationship between groups to provide means of implementing the process of building Collective Knowledge in the classroom. One of the main challenges encountered at work is the understanding between native psychic and somesthetic students. From the data collection of the experiment, it was evidenced that there is a strong correlation between the networks of friendships and grades, which allowed to verify that repeating students do not fit in with students of the grade in which they are and that students with good grades have many friendship bonds, however these bonds are weak since they are only bonds with interest in the notes. The Collective Knowledge applied by the teacher must collaborate for the interrelation of the students and, consequently, in the strengthening of bonds and grades. a
Agricultura 4.0: uma abordagem a partir dos princípios FAIR e tecnologia blockchain para gestão d... more Agricultura 4.0: uma abordagem a partir dos princípios FAIR e tecnologia blockchain para gestão de dados de levantamentos pedológicos. CAI.
This research aims to verify the impact of motivational factors on the intention of use of a Virt... more This research aims to verify the impact of motivational factors on the intention of use of a Virtual Learning Environment. The environment studied was an e-government web application used by The Brazilian Ministry of Education offered to Brazilian high schools. In this preliminary approach, a case study was done in a private school in Rio de Janeiro followed by an experiment with 20 of its students. Qualitative and quantitative data allowed to endorse some of the results. Previous studies have indicated that teenagers tend to be motivated by playful environments, pointing to the importance of the perceived enjoyment factor. Nevertheless, in this study the perceived usefulness factor appeared as the greatest motivator for the intention of use of the adopted technology. The results of this study will be beneficial for increasing our understanding of new generation adoption of technology.
Anais Estendidos do XIX Simpósio Brasileiro de Sistemas de Informação (SBSI 2023)
Os usos ineficientes dos solos são um problema crítico que afetam várias gerações e regiões do pl... more Os usos ineficientes dos solos são um problema crítico que afetam várias gerações e regiões do planeta. O objetivo deste trabalho é propor a aplicação prática do Método de Financiamento Incremental (IFM) relacionado à Gestão de Projetos de Agronegócio. O desafio está em maximizar a produção rural e buscar o melhor retorno financeiro, mantendo a segurança do solo. O vídeo sobre este trabalho pode ser acessado em https://youtu.be/-Xws3jvkhLw
Anais da VII Escola Regional de Sistemas de Informação do Rio de Janeiro (ERSI-RJ 2021), 2021
A pedologia é a ciência que estuda o solo. Atualmente, os datasets oriundos de projetos pedológic... more A pedologia é a ciência que estuda o solo. Atualmente, os datasets oriundos de projetos pedológicos se encontram isolados em data lakes sob os mais variados formatos e classificações. O objetivo deste trabalho é apresentar uma abordagem e experimentos baseados em workflows ETLH capazes de serem acoplados à plataforma OpenSoils para carregar, limpar, transformar e harmonizar grandes massas de dados legados, agregando descritores de proveniência retrospectiva sobres operações e dados. O banco resultante amplia a acessibilidade, localização, compartilhamento e reúso de dados pedológicos harmonizados.
Anais do Workshop de Computação Aplicada à Gestão do Meio Ambiente e Recursos Naturais (WCAMA), 2019
Os usos eficientes dos solos são problemas críticos que afetam vários países. O objetivo deste tr... more Os usos eficientes dos solos são problemas críticos que afetam vários países. O objetivo deste trabalho está na modelagem de um Sistema Agrícola de Próxima Geração (SAPG) para a área de Segurança de Solos. Apresentamos e avaliamos um serviço denominado do OpenSoils Edu que é parte de um SAPG voltado para gestão de dados pedológicos. O serviço é capaz de mapear grandes quantidades de dados de solos e pode ser utilizado por diversos tipos de usuários para visualização e compartilhamento de dados curados de solos.
Anais do Brazilian e-Science Workshop (BreSci), 2018
Soils Security is a critical and growing global concern. The OpenSoils´ objective is to host, con... more Soils Security is a critical and growing global concern. The OpenSoils´ objective is to host, connect and share large amounts of curated soil data and knowledge at the Brazilian and South America level. The e-infrastructure consists of several layers of services, a database of soil profiles, a cloud-based computational framework to compute and share soil data integrated with a map visualization tools. OpenSoils is open, elastic, provenance-oriented and lightweight computational e-infrastructure that collects, stores, describes, curates, harmonizes and directs to various soil resource types: large datasets of soils profiles, services/applications, documents, projects and external links. OpenSoils is the first open science-based computational framework of soils security in the literature.
Anais Estendidos do XIX Simpósio Brasileiro de Sistemas de Informação (SBSI 2023)
Atualmente, os datasets oriundos de projetos pedológicos se encontram, isolados, desconectados e ... more Atualmente, os datasets oriundos de projetos pedológicos se encontram, isolados, desconectados e dispersos na Web sob os mais variados formatos e classificações. O objetivo deste resumo é apresentar a plataforma OpenSoils que visa apoiar pequenos ou grandes produtores ou mesmo gestores públicos na tomada de decisão relacionadas aos usos dos solos envolvidos no agronegócio ou mesmo nas regiões periféricas das cidades.
O solo é um recurso insubstituível para a vida na Terra e constitui-se de um componente vital em ... more O solo é um recurso insubstituível para a vida na Terra e constitui-se de um componente vital em diversos sistema ecológicos. Computacionalmente, compreende-se solo como um todo organizado, constituído de um grande conjunto de sistemas e dados interdependentes que perduram no tempo e que requererem abordagens modernas e inovadoras para apoiar pesquisadores, gestores e produtores. A presente pesquisa faz parte de um trabalho mais amplo, tendo como sua principal contribuição a ampliação da qualidade, da reutilização e do compartilhamento dos dados de solos, gerando transparência e confiança no processo. A proposta visa criar um repositório blockchain com aderência aos princípios FAIR que comporte os dados e metadados de solos
Vivemos em um planeta único. Em 2050, nosso planeta contará com aproximadamente 9 bilhões de sere... more Vivemos em um planeta único. Em 2050, nosso planeta contará com aproximadamente 9 bilhões de seres humanos, segundo estimativa das Nações Unidas publicada em 2001. Apenas para alimentar adequadamente a população, a quantidade de produtos vegetais terá que dobrar (Mazoyer et al., 2008).Schmidt e Cohen (2013) defendem que se formos capazes de fazer mais no mundo virtual, tornaremos os mecanismos do nosso mundo físico mais eficientes. Assim, para melhor entender os elementos do contexto do agronegócio sustentável, talvez possamos aprender a encontrar os melhores caminhos a seguir e influenciá-los a nosso favor.Esta pesquisa em andamento tem como objetivo realizar a aplicação prática do Método de Financiamento Incremental (IFM) relacionado à base do Sistema Agrícola de Próxima Geração (SAPG), para melhor entender como podemos levar para a Gestão de Projetos Sustentáveis de Agronegócio a metodologia IFM proposta por Denne e Cleland-Huang (2004), com a finalidade de aprimorar a utilização...
Anais Estendidos do XXXVII Simpósio Brasileiro de Banco de Dados (SBBD Estendido 2022)
Blockchain technology combined with Data provenance is one way to make soil data more trustworthy... more Blockchain technology combined with Data provenance is one way to make soil data more trustworthy and traceable by providing tamper-proof information about the origin, transformations, and history of pieces of data. We present Hyperledger Fabric of FAIRCHAIN, a computational infrastructure that manages smart contracts that uses soil data. We aim to mitigate the open challenges of the agricultural food supply chain, specifically in the difficulty of traceability of soil data. In this work, we present the mechanism to structure a smart contract using soil data enriched with retrospective provenance metadata. The infrastructure can hold workflow implementations.
Anais do XIII Congresso Brasileiro de Agroinformática (SBIAGRO 2021), 2021
Atualmente, os datasets oriundos de projetos pedológicos se encontram isolados em silos sob os ma... more Atualmente, os datasets oriundos de projetos pedológicos se encontram isolados em silos sob os mais variados formatos. O objetivo deste trabalho é apresentar uma abordagem e experimentos baseados em workflows ETLH e de FAIRificação capazes de carregar, limpar, transformar, identificar e harmonizar grandes massas de dados legados na plataforma OpenSoils. Adicionalmente, discutimos as principais etapas do processo de FAIRificação.
Soils are probably the most critical natural resource in Agriculture, and soils security represen... more Soils are probably the most critical natural resource in Agriculture, and soils security represents a critical growing global issue. Soils experiments require vast amounts of high-quality data, are very hard to be reproduced, and there are few studies about data provenance of such tests. We present OpenSoils; it shares knowledge about data-centric soils experiments. OpenSoils is a provenance-oriented and lightweight e-infrastructure that collects, stores, describes, curates and, harmonizes various soil datasets.
Proceedings of the 13th International Conference on Computer Supported Education, 2021
This article brings to light analyses of student's social networks in order to comprehend how soc... more This article brings to light analyses of student's social networks in order to comprehend how social interactions occur in schools. Furthermore, the present research intents on verifying if social groups affect student's performance. In view of this reality, this work presents the analysis of 40 social network students with the objective of measuring the degrees of interrelationship between groups to provide means of implementing the process of building Collective Knowledge in the classroom. One of the main challenges encountered at work is the understanding between native psychic and somesthetic students. From the data collection of the experiment, it was evidenced that there is a strong correlation between the networks of friendships and grades, which allowed to verify that repeating students do not fit in with students of the grade in which they are and that students with good grades have many friendship bonds, however these bonds are weak since they are only bonds with interest in the notes. The Collective Knowledge applied by the teacher must collaborate for the interrelation of the students and, consequently, in the strengthening of bonds and grades. a
Proceedings of the 7th International Conference on Computer Supported Education, 2015
This research aims to verify the impact of motivational factors on the intention of use of a Virt... more This research aims to verify the impact of motivational factors on the intention of use of a Virtual Learning Environment. The environment studied was an e-government web application used by The Brazilian Ministry of Education offered to Brazilian high schools. In this preliminary approach, a case study was done in a private school in Rio de Janeiro followed by an experiment with 20 of its students. Qualitative and quantitative data allowed to endorse some of the results. Previous studies have indicated that teenagers tend to be motivated by playful environments, pointing to the importance of the perceived enjoyment factor. Nevertheless, in this study the perceived usefulness factor appeared as the greatest motivator for the intention of use of the adopted technology. The results of this study will be beneficial for increasing our understanding of new generation adoption of technology.
Anais do XXV Simpósio Brasileiro de Informática na Educação (SBIE 2014), 2014
This research aims to verify the impact of motivational factors in the use of a virtual learning ... more This research aims to verify the impact of motivational factors in the use of a virtual learning environment, specifically; the factors perceived enjoyment, perceived usefulness and perceived ease-of-use. The environment studied was an initiative of Digital Literacy organized by Brazilian Ministry of Education: e-Proinfo, which is offered to elementary school students. In this multi-method research, a case study was applied in a private school at Rio de Janeiro, followed by an experiment with 20 students of this school. Qualitative data collected from the case study allowed us to endorse some of the experiment results on the Quantitative Phase. Previous researches indicate that teenagers tend to be motivated by playful environments, pointing to the importance of perceived enjoyment factor. Nevertheless, in this experiment, it was observed that perceived usefulness was the motivational factor with greatest impact on intention of use.
Currently, datasets from pedological projects are isolated in silos under the most varied formats... more Currently, datasets from pedological projects are isolated in silos under the most varied formats. The objective of this work is to present an approach and experiments based on ETLH and FAIRification workflows capable of loading, cleaning, transforming, identifying and harmonizing large masses of legacy data on the OpenSoils platform. Additionally, we discuss the main steps of the FAIRification process. Resumo. Atualmente, os datasets oriundos de projetos pedológicos se encontram isolados em silos sob os mais variados formatos. O objetivo deste trabalho é apresentar uma abordagem e experimentos baseados em workflows ETLH e de FAIRificação capazes de carregar, limpar, transformar, identificar e harmonizar grandes massas de dados legados na plataforma OpenSoils. Adicionalmente, discutimos as principais etapas do processo de FAIRificação.
Anais do ... Simpósio Brasileiro de Informática na Educação, Nov 3, 2014
This research aims to verify the impact of motivational factors in the use of a virtual learning ... more This research aims to verify the impact of motivational factors in the use of a virtual learning environment, specifically; the factors perceived enjoyment, perceived usefulness and perceived ease-of-use. The environment studied was an initiative of Digital Literacy organized by Brazilian Ministry of Education: e-Proinfo, which is offered to elementary school students. In this multi-method research, a case study was applied in a private school at Rio de Janeiro, followed by an experiment with 20 students of this school. Qualitative data collected from the case study allowed us to endorse some of the experiment results on the Quantitative Phase. Previous researches indicate that teenagers tend to be motivated by playful environments, pointing to the importance of perceived enjoyment factor. Nevertheless, in this experiment, it was observed that perceived usefulness was the motivational factor with greatest impact on intention of use.
Pedology is the science that studies the soil. Currently, datasets from pedological projects are ... more Pedology is the science that studies the soil. Currently, datasets from pedological projects are isolated, disconnected and dispersed in the Web in the most varied formats and classifications. This work presents an approach and experiments based on ETLH workflows capable of being coupled to the OpenSoils platform to load, clean, transform and harmonize large amounts of legacy soil data, annotating with retrospective provenance on operations and data. The resulting database expands the accessibility, sharing and reuse of harmonized pedological data. Resumo. A pedologia é a ciência que estuda o solo. Atualmente, os datasets oriundos de projetos pedológicos se encontram isolados em data lakes sob os mais variados formatos e classificações. O objetivo deste trabalho é apresentar uma abordagem e experimentos baseados em workflows ETLH capazes de serem acoplados à plataforma OpenSoils para carregar, limpar, transformar e harmonizar grandes massas de dados legados, agregando descritores de proveniência retrospectiva sobres operações e dados. O banco resultante amplia a acessibilidade, localização, compartilhamento e reúso de dados pedológicos harmonizados.
This article brings to light analyses of student's social networks in order to comprehend how soc... more This article brings to light analyses of student's social networks in order to comprehend how social interactions occur in schools. Furthermore, the present research intents on verifying if social groups affect student's performance. In view of this reality, this work presents the analysis of 40 social network students with the objective of measuring the degrees of interrelationship between groups to provide means of implementing the process of building Collective Knowledge in the classroom. One of the main challenges encountered at work is the understanding between native psychic and somesthetic students. From the data collection of the experiment, it was evidenced that there is a strong correlation between the networks of friendships and grades, which allowed to verify that repeating students do not fit in with students of the grade in which they are and that students with good grades have many friendship bonds, however these bonds are weak since they are only bonds with interest in the notes. The Collective Knowledge applied by the teacher must collaborate for the interrelation of the students and, consequently, in the strengthening of bonds and grades. a
Agricultura 4.0: uma abordagem a partir dos princípios FAIR e tecnologia blockchain para gestão d... more Agricultura 4.0: uma abordagem a partir dos princípios FAIR e tecnologia blockchain para gestão de dados de levantamentos pedológicos. CAI.
This research aims to verify the impact of motivational factors on the intention of use of a Virt... more This research aims to verify the impact of motivational factors on the intention of use of a Virtual Learning Environment. The environment studied was an e-government web application used by The Brazilian Ministry of Education offered to Brazilian high schools. In this preliminary approach, a case study was done in a private school in Rio de Janeiro followed by an experiment with 20 of its students. Qualitative and quantitative data allowed to endorse some of the results. Previous studies have indicated that teenagers tend to be motivated by playful environments, pointing to the importance of the perceived enjoyment factor. Nevertheless, in this study the perceived usefulness factor appeared as the greatest motivator for the intention of use of the adopted technology. The results of this study will be beneficial for increasing our understanding of new generation adoption of technology.
Anais Estendidos do XIX Simpósio Brasileiro de Sistemas de Informação (SBSI 2023)
Os usos ineficientes dos solos são um problema crítico que afetam várias gerações e regiões do pl... more Os usos ineficientes dos solos são um problema crítico que afetam várias gerações e regiões do planeta. O objetivo deste trabalho é propor a aplicação prática do Método de Financiamento Incremental (IFM) relacionado à Gestão de Projetos de Agronegócio. O desafio está em maximizar a produção rural e buscar o melhor retorno financeiro, mantendo a segurança do solo. O vídeo sobre este trabalho pode ser acessado em https://youtu.be/-Xws3jvkhLw
Anais da VII Escola Regional de Sistemas de Informação do Rio de Janeiro (ERSI-RJ 2021), 2021
A pedologia é a ciência que estuda o solo. Atualmente, os datasets oriundos de projetos pedológic... more A pedologia é a ciência que estuda o solo. Atualmente, os datasets oriundos de projetos pedológicos se encontram isolados em data lakes sob os mais variados formatos e classificações. O objetivo deste trabalho é apresentar uma abordagem e experimentos baseados em workflows ETLH capazes de serem acoplados à plataforma OpenSoils para carregar, limpar, transformar e harmonizar grandes massas de dados legados, agregando descritores de proveniência retrospectiva sobres operações e dados. O banco resultante amplia a acessibilidade, localização, compartilhamento e reúso de dados pedológicos harmonizados.
Anais do Workshop de Computação Aplicada à Gestão do Meio Ambiente e Recursos Naturais (WCAMA), 2019
Os usos eficientes dos solos são problemas críticos que afetam vários países. O objetivo deste tr... more Os usos eficientes dos solos são problemas críticos que afetam vários países. O objetivo deste trabalho está na modelagem de um Sistema Agrícola de Próxima Geração (SAPG) para a área de Segurança de Solos. Apresentamos e avaliamos um serviço denominado do OpenSoils Edu que é parte de um SAPG voltado para gestão de dados pedológicos. O serviço é capaz de mapear grandes quantidades de dados de solos e pode ser utilizado por diversos tipos de usuários para visualização e compartilhamento de dados curados de solos.
Anais do Brazilian e-Science Workshop (BreSci), 2018
Soils Security is a critical and growing global concern. The OpenSoils´ objective is to host, con... more Soils Security is a critical and growing global concern. The OpenSoils´ objective is to host, connect and share large amounts of curated soil data and knowledge at the Brazilian and South America level. The e-infrastructure consists of several layers of services, a database of soil profiles, a cloud-based computational framework to compute and share soil data integrated with a map visualization tools. OpenSoils is open, elastic, provenance-oriented and lightweight computational e-infrastructure that collects, stores, describes, curates, harmonizes and directs to various soil resource types: large datasets of soils profiles, services/applications, documents, projects and external links. OpenSoils is the first open science-based computational framework of soils security in the literature.
Anais Estendidos do XIX Simpósio Brasileiro de Sistemas de Informação (SBSI 2023)
Atualmente, os datasets oriundos de projetos pedológicos se encontram, isolados, desconectados e ... more Atualmente, os datasets oriundos de projetos pedológicos se encontram, isolados, desconectados e dispersos na Web sob os mais variados formatos e classificações. O objetivo deste resumo é apresentar a plataforma OpenSoils que visa apoiar pequenos ou grandes produtores ou mesmo gestores públicos na tomada de decisão relacionadas aos usos dos solos envolvidos no agronegócio ou mesmo nas regiões periféricas das cidades.
O solo é um recurso insubstituível para a vida na Terra e constitui-se de um componente vital em ... more O solo é um recurso insubstituível para a vida na Terra e constitui-se de um componente vital em diversos sistema ecológicos. Computacionalmente, compreende-se solo como um todo organizado, constituído de um grande conjunto de sistemas e dados interdependentes que perduram no tempo e que requererem abordagens modernas e inovadoras para apoiar pesquisadores, gestores e produtores. A presente pesquisa faz parte de um trabalho mais amplo, tendo como sua principal contribuição a ampliação da qualidade, da reutilização e do compartilhamento dos dados de solos, gerando transparência e confiança no processo. A proposta visa criar um repositório blockchain com aderência aos princípios FAIR que comporte os dados e metadados de solos
Vivemos em um planeta único. Em 2050, nosso planeta contará com aproximadamente 9 bilhões de sere... more Vivemos em um planeta único. Em 2050, nosso planeta contará com aproximadamente 9 bilhões de seres humanos, segundo estimativa das Nações Unidas publicada em 2001. Apenas para alimentar adequadamente a população, a quantidade de produtos vegetais terá que dobrar (Mazoyer et al., 2008).Schmidt e Cohen (2013) defendem que se formos capazes de fazer mais no mundo virtual, tornaremos os mecanismos do nosso mundo físico mais eficientes. Assim, para melhor entender os elementos do contexto do agronegócio sustentável, talvez possamos aprender a encontrar os melhores caminhos a seguir e influenciá-los a nosso favor.Esta pesquisa em andamento tem como objetivo realizar a aplicação prática do Método de Financiamento Incremental (IFM) relacionado à base do Sistema Agrícola de Próxima Geração (SAPG), para melhor entender como podemos levar para a Gestão de Projetos Sustentáveis de Agronegócio a metodologia IFM proposta por Denne e Cleland-Huang (2004), com a finalidade de aprimorar a utilização...
Anais Estendidos do XXXVII Simpósio Brasileiro de Banco de Dados (SBBD Estendido 2022)
Blockchain technology combined with Data provenance is one way to make soil data more trustworthy... more Blockchain technology combined with Data provenance is one way to make soil data more trustworthy and traceable by providing tamper-proof information about the origin, transformations, and history of pieces of data. We present Hyperledger Fabric of FAIRCHAIN, a computational infrastructure that manages smart contracts that uses soil data. We aim to mitigate the open challenges of the agricultural food supply chain, specifically in the difficulty of traceability of soil data. In this work, we present the mechanism to structure a smart contract using soil data enriched with retrospective provenance metadata. The infrastructure can hold workflow implementations.
Anais do XIII Congresso Brasileiro de Agroinformática (SBIAGRO 2021), 2021
Atualmente, os datasets oriundos de projetos pedológicos se encontram isolados em silos sob os ma... more Atualmente, os datasets oriundos de projetos pedológicos se encontram isolados em silos sob os mais variados formatos. O objetivo deste trabalho é apresentar uma abordagem e experimentos baseados em workflows ETLH e de FAIRificação capazes de carregar, limpar, transformar, identificar e harmonizar grandes massas de dados legados na plataforma OpenSoils. Adicionalmente, discutimos as principais etapas do processo de FAIRificação.
Soils are probably the most critical natural resource in Agriculture, and soils security represen... more Soils are probably the most critical natural resource in Agriculture, and soils security represents a critical growing global issue. Soils experiments require vast amounts of high-quality data, are very hard to be reproduced, and there are few studies about data provenance of such tests. We present OpenSoils; it shares knowledge about data-centric soils experiments. OpenSoils is a provenance-oriented and lightweight e-infrastructure that collects, stores, describes, curates and, harmonizes various soil datasets.
Proceedings of the 13th International Conference on Computer Supported Education, 2021
This article brings to light analyses of student's social networks in order to comprehend how soc... more This article brings to light analyses of student's social networks in order to comprehend how social interactions occur in schools. Furthermore, the present research intents on verifying if social groups affect student's performance. In view of this reality, this work presents the analysis of 40 social network students with the objective of measuring the degrees of interrelationship between groups to provide means of implementing the process of building Collective Knowledge in the classroom. One of the main challenges encountered at work is the understanding between native psychic and somesthetic students. From the data collection of the experiment, it was evidenced that there is a strong correlation between the networks of friendships and grades, which allowed to verify that repeating students do not fit in with students of the grade in which they are and that students with good grades have many friendship bonds, however these bonds are weak since they are only bonds with interest in the notes. The Collective Knowledge applied by the teacher must collaborate for the interrelation of the students and, consequently, in the strengthening of bonds and grades. a
Proceedings of the 7th International Conference on Computer Supported Education, 2015
This research aims to verify the impact of motivational factors on the intention of use of a Virt... more This research aims to verify the impact of motivational factors on the intention of use of a Virtual Learning Environment. The environment studied was an e-government web application used by The Brazilian Ministry of Education offered to Brazilian high schools. In this preliminary approach, a case study was done in a private school in Rio de Janeiro followed by an experiment with 20 of its students. Qualitative and quantitative data allowed to endorse some of the results. Previous studies have indicated that teenagers tend to be motivated by playful environments, pointing to the importance of the perceived enjoyment factor. Nevertheless, in this study the perceived usefulness factor appeared as the greatest motivator for the intention of use of the adopted technology. The results of this study will be beneficial for increasing our understanding of new generation adoption of technology.
Anais do XXV Simpósio Brasileiro de Informática na Educação (SBIE 2014), 2014
This research aims to verify the impact of motivational factors in the use of a virtual learning ... more This research aims to verify the impact of motivational factors in the use of a virtual learning environment, specifically; the factors perceived enjoyment, perceived usefulness and perceived ease-of-use. The environment studied was an initiative of Digital Literacy organized by Brazilian Ministry of Education: e-Proinfo, which is offered to elementary school students. In this multi-method research, a case study was applied in a private school at Rio de Janeiro, followed by an experiment with 20 students of this school. Qualitative data collected from the case study allowed us to endorse some of the experiment results on the Quantitative Phase. Previous researches indicate that teenagers tend to be motivated by playful environments, pointing to the importance of perceived enjoyment factor. Nevertheless, in this experiment, it was observed that perceived usefulness was the motivational factor with greatest impact on intention of use.
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