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Optimizing Database Performance in Complex Event Processing through Indexing Strategies
No full textComplex event processing (CEP) systems have gained significant importance in various domains, such as finance, logistics, and security, where the real-time analysis of event streams is crucial. However, as the volume and complexity of event data continue to grow, optimizing the performance of CEP systems becomes a critical challenge. This paper investigates the impact of indexing strategies on the performance of databases handling complex event processing. We propose a novel indexing technique, called Hierarchical Temporal Indexing (HTI), specifically designed for the efficient processing of complex event queries. HTI leverages the temporal nature of event data and employs a multi-level indexing approach to optimize query execution. By combining temporal indexing with spatial- and attribute-based indexing, HTI aims to accelerate the retrieval and processing of relevant events, thereby improving overall query performance. In this study, we evaluate the effectiveness of HTI by implementing complex event queries on various CEP systems with different indexing strategies. We conduct a comprehensive performance analysis, measuring the query execution times and resource utilization (CPU, memory, etc.), and analyzing the execution plans and query optimization techniques employed by each system. Our experimental results demonstrate that the proposed HTI indexing strategy outperforms traditional indexing approaches, particularly for complex event queries involving temporal constraints and multi-dimensional event attributes.
We provide insights into the strengths and weaknesses of each indexing strategy, identifying the factors that influence performance, such as data volume, query complexity, and event characteristics. Furthermore, we discuss the implications of our findings for the design and optimization of CEP systems, offering recommendations for indexing strategy selection based on the specific requirements and workload characteristics. Finally, we outline the potential limitations of our study and suggest future research directions in this domain
A Survey on Forensics and Compliance Auditing for Critical Infrastructure Protection
Get PDFThe broadening dependency and reliance that modern societies have on essential services
provided by Critical Infrastructures is increasing the relevance of their trustworthiness. However, Critical
Infrastructures are attractive targets for cyberattacks, due to the potential for considerable impact, not just
at the economic level but also in terms of physical damage and even loss of human life. Complementing
traditional security mechanisms, forensics and compliance audit processes play an important role in ensuring
Critical Infrastructure trustworthiness. Compliance auditing contributes to checking if security measures are
in place and compliant with standards and internal policies. Forensics assist the investigation of past security
incidents. Since these two areas significantly overlap, in terms of data sources, tools and techniques, they can
be merged into unified Forensics and Compliance Auditing (FCA) frameworks. In this paper, we survey the
latest developments, methodologies, challenges, and solutions addressing forensics and compliance auditing
in the scope of Critical Infrastructure Protection. This survey focuses on relevant contributions, capable of
tackling the requirements imposed by massively distributed and complex Industrial Automation and Control
Systems, in terms of handling large volumes of heterogeneous data (that can be noisy, ambiguous, and
redundant) for analytic purposes, with adequate performance and reliability. The achieved results produced
a taxonomy in the field of FCA whose key categories denote the relevant topics in the literature. Also, the
collected knowledge resulted in the establishment of a reference FCA architecture, proposed as a generic
template for a converged platform. These results are intended to guide future research on forensics and
compliance auditing for Critical Infrastructure Protection.info:eu-repo/semantics/publishedVersio
Consumer Knowledge about Dietary Relevance of Fruits and Vegetables: A Study Involving Participants from Portugal and France
Get PDFFruits and vegetables are recommended as low-calorie foods that contribute to the proper intake of necessary micronutrients, macronutrients, and bioactive compounds with health benefits. However, the recommendations for the dietary intake of these foods fail to be attained in most European countries. For this reason, promoting more knowledge about the health effects of fruits and vegetables is essential to decrease the incidence of chronic diseases. This study was conducted to investigate the knowledge of the health benefits of fruits and vegetables among the population of Portugal and France. The present work involved a questionnaire survey of 639 participants (257 from Portugal and 382 from France). The results revealed that most participants were young females (68.9%) with good education (76%) and an average weight range. They consumed a varied diet (57%) but had body dissatisfaction (63.2%). The respondents had good knowledge about the health effects of fruits and vegetables. However, the French population knew more about the theme than the Portuguese. Portuguese individuals were more likely to have incomplete information. Gender and education significantly influenced knowledge levels, with females and highly educated individuals demonstrating greater understanding. Dissatisfaction with body weight drives individuals to seek nutrition information. This investigation enhances our comprehension of the factors that affect knowledge of vegetable and fruit consumption among young adults in Portugal and France. Moreover, it highlights the importance of implementing focused educational programs to enhance nutrition literacy, particularly for less-aware demographic groups. Going forward, a more in-depth analysis of these factors could assist in creating more efficient strategies to encourage healthier dietary habits and improve nutrition literacy among these communities.info:eu-repo/semantics/publishedVersio
Empreendedorismo social em estudantes do ensino superior
No full textA educação para o empreendedorismo social no ensino superior é uma área em consolidação. Contudo, a inovação social é uma exigência do mercado de trabalho à qual os estudantes da área social não devem ficar alheios. Procurou-se explorar interesses no âmbito do empreendedorismo social, de 37 finalistas da licenciatura em Educação Social, 94% femininos. Recorreu-se a um questionário ad hoc. Na análise de conteúdo das respostas, identificaram-se 40% com intenção de criar uma empresa/organização, 35% desenvolver um projeto social pós-licenciatura, 15% inovar uma organização já existente e 10% desenvolver um produto/material. Na população-alvo das propostas, salientam-se: 40% pessoas idosas, 15% pessoas com incapacidade e 10% jovens, dispersando-se as restantes (6% cada) por diferentes grupos em situação de vulnerabilidade (desempregados, migrantes e refugiados, sem-abrigo, reclusos, crianças e jovens em risco/perigo). Nas ideias, surgem serviços de apoio em domicílio (24%), ocupação de tempos livres e implementação de programas de treino de competências (18% cada), apoio à promoção da empregabilidade e distribuição de bens essenciais (12% cada). Acrescem atividades intergeracionais, de infoinclusão e o desenvolvimento de materiais de apoio (6% cada). Apesar da relevância das propostas, apenas 15% antecipam a fonte de financiamento (fundos públicos e responsabilidade social das empresas/organizações). A formação destes estudantes deve prever o desenvolvimento de competências empreendedoras centradas na criatividade e inovação social e, de forma estruturada, o conhecimento de formas de financiamento e elaboração de planos de negócio com recurso a competências na área da gestão, igualmente fundamentais na área social.info:eu-repo/semantics/publishedVersio
Slaves mobility in Brazil in the 18th century: aspects of tolerance in the catechization/integration process and religious consequences.
Get PDFThe catechization in Brazil has been studied from the perspective of missionization, in particular the Jesuit action, with emphasis on the processes of catechization ofthe indigenous people, especially regarding the confrontation between cultures, adaptation of religious practices and miscegenation. However, the bishops also played a role in the process of Christianization of Brazil, in diocesan contexts, in the post-Tridentine period when, after the impulse ofthe Council of Trent,the indoctrination ofthe faithful gained relevance, and the prelates were committed to carrying it out in their respective dioceses (Feitler 157-173; Souza 175-195). InBrazil, due to the characteristics ofthe territory and a profound lack of doctrine, the episcopal power created a catechism especially addressed to the group of slaves.The purpose ofthe present essay is to observe this catechism, understand how it took shape and prove that, in terms of the catechesis of slaves, in order to more easily inculcate the faith,the bishops, influenced by the Jesuit practice, adapted processes and forms of indoctrination and tolerated deviations committed by slaves. By adapting doctrinal norms and considering cultural and linguistic elements of the slaves’ culture in catechetical contexts, they contributed to the existence of religious syncretism in Brazilinfo:eu-repo/semantics/acceptedVersio
Biological and antioxidant activities of Physalis peruviana
Get PDFinfo:eu-repo/semantics/publishedVersio
Consumer perception about edible insects’ relation with environment and sustainability
Get PDFEdible insects have been suggested as a potential environmental and economic solution to replace less sustainable
conventional protein sources for human nutrition. Hence, this work investigated the perceptions and knowledge of consumers
in fourteen different countries towards edible insects and their relation with environment and sustainability. For that, data were
collected through a questionnaire survey in the ambit of the EISuFood Project, and 7221 responses were obtained. The results
showed that although participants had some difficulty in identifying wrong statements, a majority were able to express
disagreement towards them (ex. comparison between poultry and insect productions for water requirements, comparison
between pork and insect productions for area requirements). A great majority of respondents showed agreement with true
statements, like insect production emits fewer greenhouse gases than beef production. Higher percentages of respondents that
did not manifest a decisive opinion were found for insects being able to efficiently convert organic matter into protein, or for
loss of biodiversity being lower for insect compared to other animal productions. Sociodemographic variables sex and
education were significantly influenced knowledge on most of the questions, while age was not found so influential. Regarding
the geographic variable living environment, it significantly influenced the knowledge on practically all items, and country
significantly influenced knowledge in all of the questions, being the most influential of all variables studied. As a conclusion,
it was fund that perception about edible insects and sustainability are influenced by sociodemographic characteristics of the
participants and greatly variable according to geographical factors.info:eu-repo/semantics/publishedVersio
Signal processing measurement of the results of the up-down hop test using sensors
Get PDFThe advancement of mobile technology and sensor development has profoundly
impacted several sectors, including physical therapy and rehabilitation sciences. This
study focuses on measuring the Up-Down Hop Test findings with sensor technologies
to improve clinical assessments and rehabilitation outcomes and contribute to the
growth of sports science. By incorporating sensors into mobile devices, the study
investigates novel techniques for objectively analyzing data from the Up-Down Hop
Test, providing a complete understanding of the patient’s lower limb function and
stability. Using sensors, such as accelerometers, gyroscopes, and magnetometers,
allows for the accurate capturing of movement data, which is essential for assessing
the efficiency of rehabilitation programs and establishing an individual’s readiness
to resume physical activity.
The study describes the limitations of traditional ways of evaluating Up-Down
Hop Test results, which rely on subjective assessments and physical measurements.
The study uses sensor technology to overcome these issues, suggesting a more ob jective and efficient assessment process. This method improves the accuracy and
reliability of test findings and facilitates the formulation of tailored rehabilitation
plans based on quantitative data analysis.
A thorough literature analysis offers the study’s theoretical underpinning, em phasizing the importance of the Up-Down Hop Test in physical therapy and the po tential benefits of introducing sensor technology into its evaluation. Related works
are discussed, contrasting various techniques and their clinical usefulness, highlight ing the need for trustworthy, objective, and cost-effective tools for assessing athletic
performance and healing.
The methodology section describes the methods used to execute and evaluate the
sensor-based assessment of the Up-Down Hop Test, including sensor selection, data
collection protocols, and analytic approaches. Pilot tests and statistical analysis
have validated the suggested method’s effectiveness, proving its ability to provide a
complete knowledge of test results and guide rehabilitation efforts.
The study’s findings support the viability of using sensor technology to correctly
quantify Up-Down Hop Test outcomes. It provides valuable insights into the healing
process and aids evidence-based decision-making in physical therapy practices. This
study adds to the expanding body of knowledge about using sophisticated technology
in healthcare, recommending future directions for developing more effective and tailored rehabilitation treatments.RESUMO:
O estudo sobre a utilização da tecnologia de sensores para aprimorar a avaliação do Up-Down Hop Test em fisioterapia e ciências da reabilitação representa um
avanço significativo na forma como abordamos a reabilitação física e a ciência do
desporto. A utilização de acelerómetros, giroscópios e magnetómetros para capturar
dados precisos de movimento pode revolucionar a objetividade e eficiência das avaliações clínicas, contribuindo, em última análise, para planos de reabilitação mais
personalizados e eficazes. O foco em superar as limitações das avaliações subjeti vas tradicionais com essas tecnologias aborda uma necessidade crítica de métodos
mais confiáveis e quantitativos na avaliação da função e estabilidade dos membros
inferiores.
A análise minuciosa da literatura fornece uma base sólida para a importância
da integração da tecnologia de sensores nas avaliações de fisioterapia. Destaca a
necessidade de ferramentas objetivas, confiáveis e custo-eficazes na avaliação do desempenho atlético e recuperação, pavimentando o caminho para uma aceitação e
implementação mais amplas dessas tecnologias em ambientes clínicos.
A metodologia, incluindo a seleção de sensores apropriados, o estabelecimento de
protocolos de coleta de dados e a utilização de abordagens analíticas para interpretar
os dados, mostra uma abordagem bem pensada para a realização deste estudo. A
validação da sua metodologia através de testes piloto e análise estatística reforça o
potencial das avaliações baseadas em sensores em oferecer uma compreensão mais
matizada dos resultados do Up-Down Hop Test.
Os resultados que destacam a viabilidade e eficácia da utilização da tecnologia
de sensores para a quantificação precisa dos resultados da reabilitação são incrivelmente promissores. Esta abordagem não só ajuda no monitoramento do processo de
cura, mas também melhora a tomada de decisões baseada em evidências nas práticas
de terapia. Ao contribuir para o crescente corpo de conhecimento sobre a aplicação
de tecnologias avançadas na saúde, o seu estudo aponta para direções futuras empolgantes para o desenvolvimento de intervenções de reabilitação mais eficientes e
personalizadas.
Para contribuir ainda mais para este campo, poderia ser benéfico explorar a
integração de algoritmos de aprendizagem automática com os dados coletados dos
sensores para uma análise e modelagem preditiva ainda mais sofisticadas dos resultados da reabilitação. Além disso, investigar os impactos a longo prazo das avaliações baseadas em sensores na recuperação dos pacientes e o potencial para a integração
dessas tecnologias em programas de reabilitação em casa poderia oferecer insights
valiosos sobre a sua aplicabilidade e eficácia mais amplas
Relatório de Estágio na CPCJ e Ação Social do Município de Penacova
No full textO presente Relatório de Estágio pretende apresentar as atividades desenvolvidas durante o período de estágio curricular na Comissão de Proteção de Crianças e Jovens (CPCJ) e na Ação Social de um Município da Região Centro, no âmbito do Mestrado em Intervenção Psicossocial com Crianças e Jovens em Risco, da Escola Superior de Educação do Instituto Politécnico de Viseu. Tendo como ponto de partida o conhecimento das necessidades das famílias acompanhadas pela Ação Social e CPCJ, bem como das crianças e jovens do Município em questão, foi delineado e implementado em articulação com as respostas locais um plano de intervenção com o objetivo de desenvolver competências pessoais, sociais, emocionais e parentais, fomentando o bem-estar das crianças, jovens e famílias. Nesse sentido, esse plano integrou as seguintes medidas: “Prevenção de comportamentos de risco”, “Capacitação das famílias”, “Sensibilização para o trabalho da CPCJ” e “Colaboração nas atividades da CPCJ e Ação Social”. De acordo com a abordagem ecológica, o desenvolvimento das crianças e jovens é influenciado pelos diversos contextos de vida e, por isso, é importante que as respostas/acompanhamentos sejam ajustadas de forma a ir ao encontro das suas necessidades. Destacam-se como principais resultados da intervenção desenvolvida: o contributo para a prevenção de comportamentos de risco e a atenuação de algumas problemáticas das famílias apoiadas, o aumento da consciencialização da população para as atividades desenvolvidas na/pela CPCJ e, a nível pessoal, o aumento de conhecimento e competências para a intervenção psicossocial na área da promoção dos direitos e proteção de crianças e jovens.The present Internship Report aims to present the activities carried out during the period of the curricular internship at the Commission for the Protection of Children and Youth (CPCJ) and in the Social Action of the Municipality in the Central Region, as part of the Master's program in Psychosocial Intervention with Children and Youth at Risk, at the Escola Superior de Educação de Viseu from Polytechnic University of Viseu. Starting from an understanding of the needs of the families assisted by Social Action and CPCJ, as well as the children and youth of the Municipality, a plan of intervention was outlined and implemented in collaboration with local services. The objective was to develop personal, social, emotional, and parenting skills, promoting the well-being of children, youth, and families. In this sense, the plan included the following measures: "Prevention of risky behaviours", "Empowerment of families", "Awareness of the work of the CPCJ", and "Collaboration in the activities of the CPCJ and Social Action". According to the ecological approach, the development of children and youth is influenced by various life contexts, and therefore, it is important that responses and support are tailored to meet their needs. The main results of the intervention carried out include: The contribution for the prevention of risky behaviours and the mitigation of certain issues in the supported families, increase in public awareness of activities carried out by the CPCJ and on a personal level, the enhancement of knowledge and skills for psychosocial intervention in the area of promoting the rights and protection of children and young people
A valorização da área disciplinar de Educação Física pelos docentes do 1.º Ciclo do Ensino Básico
Get PDFA área da Educação Física permite que o ser humano se desenvolva psicologicamente, socialmente, mentalmente e fisicamente, ou seja, se desenvolva integralmente. Deste modo, é globalmente reconhecida a importância da atividade física, no entanto na prática isto não se verifica, tendo vindo a existir um aumento considerável nos níveis de sedentarismo da população. Como em muitos outros aspetos relacionados com a educação, durante muito tempo, o ensino da Educação Física pouco mais conseguiu em Portugal que discursos bemintencionados e medidas legislativas sem grande alcance prático. Apesar de se notar uma evolução na valorização atribuída a esta componente curricular, na atualidade, esta ainda não é valorizada da forma esperada pelo corpo docente. O presente Relatório Final de Estágio tem por objetivos a reflexão e análise crítica das práticas desenvolvidas e a concretização do trabalho investigativo sobre um problema relacionado com a Prática de Ensino Supervisionada. Este encontra-se dividido em duas importantes partes. A primeira parte é referente às práticas desenvolvidas em contexto de estágio, tendo por base autores de referência e os documentos orientadores do Ensino Básico. A segunda parte é alusiva ao estudo e tem por finalidade analisar a valorização atribuída à área disciplinar de Educação Física pelos docentes do 1.º Ciclo do Ensino Básico. Para isso, foi realizada uma análise bibliográfica com pesquisa em bases científicas e concretizado um estudo de caráter qualitativo. O trabalho investigativo tem como grupo de estudo dez professores do 1.º Ciclo do Ensino Básico de dois agrupamentos do concelho de Viseu e baseia-se na realização de entrevistas semiestruturadas. A recolha de dados foi concretizada num ambiente de pesquisa natural. Os dados levantados pela pesquisa tornam-se significativos no momento da sua análise e interpretação, sendo que este trabalho é resultado da reflexão e estudo do material recolhido, o que nos permitiu dar resposta aos objetivos delineados para a investigação. Por meio do estudo constata-se que os docentes reconhecem a importância da Educação Física, porém a valorização que lhe atribuem é em termos conceptuais, pois na prática os docentes não a valorizam da forma idealizada, algo que se verifica na sua lecionação. Esta desvalorização é justificada pela falta de recursos espaciais e materiais, mas essencialmente pela insegurança que os professores sentem, isto porque, consideram que a sua formação não é suficiente para o ensino da Educação Física e, por isso, defendem a coadjuvação por um professor especializado na área.The area of Physical Education allows human beings to develop psychologically, socially, mentally, and physically, that is, to develop fully. Therefore, the importance of physical activity is globally recognized, however, in practice this is not the case, and there has been a considerable increase in the population's sedentary lifestyle. As in many other aspects related to education, for a long time, the teaching of Physical Education achieved little more in Portugal than well-intentioned speeches and legislative measures without much practical scope. Despite noticing an evolution in the value attributed to this curricular component, currently, it's still not valued in the way expected by the teaching staff. This Final Internship Report aims to reflect on and critically analyze the practices developed and to carry out research into a problem related to Supervised Teaching Practice. The report is split into two main parts. The first refers to the practices developed in the internship context based on reference authors and the guiding documents for Basic Education. The second one refers to the study and aims to analyze the value attributed to the subject area of Physical Education by teachers of the 1st Cycle of Basic Education. For this purpose, a bibliographical analysis was carried out using scientific databases and a qualitative study. The investigative work has as its study group ten teachers from the 1st Cycle of Basic Education from two school groups in Viseu’s municipality and is based on semistructured interviews. The data collection was carried out in a natural research environment. The data collected by the research becomes significant when it is analyzed and interpreted, and this work is the result of reflection and study of the material collected, which allowed us to respond to the objectives outlined for the investigation. Through the study it is clear that teachers recognize the importance of Physical Education, however, the value they attribute to it is in conceptual terms, as in practice teachers do not value it in the idealized way, something that can be seen in their teaching. This devaluation is justified by the lack of spatial and material resources, but essentially by the insecurity that teachers feel, because they consider that their training is not sufficient for teaching Physical Education and, therefore, they defend the supporting of a specialized teacher in the area