120 research outputs found

    O Paradigma "Code Push-Down"

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    A SAP é um dos maiores e mais bem-conceituados fornecedores de sistemas ERP. Tal como a maioria dos sistemas ERP, estes também têm estado em constante evolução. Desde a disponibilização da sua base de dados SAP High-Speed Analytical Appliance (HANA), a SAP tem tentado persuadir os seus clientes a adotar esta base de dados. Em 2018, a SAP anunciou que iria acabar o suporte do seu ERP, SAP ECC, favorecendo a adoção do seu novo ERP, SAP S/4 HANA, que apenas suporta o uso de bases de dados SAP HANA. O suporte estava previsto acabar em 2025, no entanto foi adiado para 2027 a pedido dos seus clientes. O fim deste suporte significa que uma porção significativa dos clientes da SAP irão migrar para o ERP SAP S/4 HANA (+ SAP HANA) e, como recomendado pela SAP, provavelmente também irão adotar o paradigma de desenvolvimento “Code Push-Down”, que se foca em empurrar lógica aplicacional para a camada/nível da base de dados. Apesar desta mudança no paradigma de desenvolvimento poder, supostamente, trazer benefícios significativos de desempenho, também pode ter consequências no que toca às outras qualidades do software desenvolvido. Este trabalho tem como objetivo analisar o paradigma de desenvolvimento “Code PushDown”, descobrir possíveis desvantagens/limitações e tentar elaborar um guião geral de como aplicar o paradigma de forma a tentar mitigá-las. E talvez, ao suceder nos seus objetivos, também incentivar a realização de mais trabalhos sobre o tema.SAP is one of the biggest and most well-established ERP system providers. Like most ERP systems, their ERP systems and surrounding ecosystems have been in constant evolution. Since the introduction of their SAP High-Speed Analytical Appliance (HANA) database, they have been pushing their clients towards its adoption. In 2018, they announced the end of support for their SAP ECC ERP in favor of the new SAP S/4 HANA ERP, which only supports SAP HANA. This end of support was to take place in 2025 but, due to requests by their customers, it has since been extended to 2027. This end of support means a significant portion of SAP’s clients are migrating to SAP S/4 HANA (+ SAP HANA) and, as recommended by SAP, will most likely also adopt their “Code PushDown” development paradigm, which is based around pushing application logic down to the database tier/layer. Although this shift in development paradigms can, supposedly, bring significant gains in performance, it may also have consequences when it comes to other qualities of the developed software. This work aims to analyze the “Code Push-Down” development paradigm, discover possible downsides/tradeoffs and try to provide general guidelines on how to apply it in order to possibly mitigate them. And perhaps, by succeeding in meeting the objectives, to incentivize further work about this topic

    Elementos do conhecimento pedagógico de conteúdo expressos por futuros professores de física em materiais didáticos sobre eletricidade e magnetismo

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    The present work proposed to investigate the elements of the Pedagogical Content Knowledge (CPC), expressed in teaching materials on electricity and magnetism produced by physics undergraduates, during a formative practice of elaboration of teaching materials in the context of a subject dedicated to the practice of physics teaching, in this case the topics of electricity and magnetism.We took the Pedagogical Content Knowledge as the main element to be investigated in the teaching materials produced by undergraduates during the formative practice. The analysis was carried out seeking to identify in the materials produced by the undergraduates elements that express subdomains of CPC. During the analysis of the materials produced the elements identified were categorized and synthesized to expose a broad view of the potentialities of the formative practice of elaboration of didactic materials. As a result, we identified that the subdomains related to the Physics teaching process and teaching strategies are widely consolidated by the undergraduates and methodically expressed in the materials produced, the subdomains related to the main difficulties faced by students and the subdomain related to assessment were expressed with less representation in the materials, possibly because the undergraduates are still in the process of training and do not have teaching experience. Thus, we conclude that the formative activity of preparing teaching materials by future teachers has several potentialities to build, expand and consolidate the subdomains of pedagogical content knowledge in teaching electricity and magnetism.O presente trabalho se propôs a investigar os elementos do Conhecimento Pedagógico de Conteúdo (CPC), expressos em materiais didáticos sobre eletricidade e magnetismo produzidos por licenciandos em física, durante uma prática formativa de elaboração de materiais didáticos no âmbito de uma disciplina dedicada à prática do ensino de física, neste caso dos tópicos de eletricidade e magnetismo.Tomamos o Conhecimento Pedagógico de Conteúdo como principal elemento a ser investigado nos materiais didáticos produzidos pelos licenciandos durante a prática formativa. A análise foi realizada buscando identificar nos materiais produzidos pelos licenciandos elementos que expressem subdomínios do CPC. Durante a análise dos materiais produzidos os elementos identificados foram categorizados sintetizados para expor uma visão ampla das potencialidades da prática formativa de elaboração de materiais didáticos. Como resultado identificamos que os subdomínios referentes ao processo de ensino de Física e às estratégias de ensino são amplamente consolidados pelos licenciandos e metodicamente expressos nos materiais produzidos, os subdomínios referentes às principais dificuldades enfrentadas pelos alunos e o subdomínio referente a avaliação foram expressos com menor representação nos materiais, possivelmente pelo fato dos licenciandos ainda estarem em processo de formação e não possuírem experiência docente. Assim concluímos que a atividade formativa de elaboração de materiais didáticos por futuros professores apresenta diversas potencialidades para construir, ampliar e consolidar os subdomínios do conhecimento pedagógico do conteúdo no ensino de eletricidade e magnetismo

    Physioland: a motivational complement of physical therapy for patients with neurological diseases

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    The number of patients with mobility constraints is increasing as a result of neurological diseases. From the substantiation of the lost functions recoveries, it was possible to determine that the nervous system is able to reorganize itself expressing its property called neuroplasticity. Physical therapy is the well-known way to encourage and promote this ability. However, repetitive traditional physical therapy exercises may become boring and patients eventually abandon their physiotherapeutic programs. The development of new environments that motivate patients to continue with their treatments may be a suitable alternative or complementary tool. Serious games seems to be the ideal tool to provide them. Thus, the purpose of this paper is to present Physioland, a serious game already developed which can be a motivational complement for the physical therapy of patients with neurological diseases. Physioland is a non-invasive system that uses Image Processing Techniques and Artificial Intelligence to monitor patients and adapts some exercises of traditional physical therapy to electronic game situations. To determine whether Physioland would be motivating and challenging enough to increase a patient's desire to perform the exercises and continue/complete the rehabilitation process the game was tested in a clinical environment using two samples: one with twelve health professionals in the area of physiotherapy and the other with eleven patients with neurological diseases. The research team carried out a questionnaire-based survey. This questionnaire is an adaptation of another one already validated in the literature—the Technology Acceptance Model (TAM). For the analysis of the data obtained with the Likert scale, percentages were calculated. The answers to the open questions were subject to a content analysis. The results showed that the developed game, Physioland, proved to be highly motivating for patients at the physiotherapy clinic where it was tested. If the results are similar in other clinics, Physioland, can be used as a good and effective complement to traditional physical therapy for patients with neurological diseases.info:eu-repo/semantics/publishedVersio

    Caracterização espacial utilizando indução orientada aos atributos no SOLAP+

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    Dissertação para obtenção do Grau de Mestre em Engenharia InformáticaO protótipo SOLAP+, desenvolvido sobre a orientação de João Moura Pires, segue o conceito SOLAP apresentado por Bédard et al. combinando as funcionalidades dos sistemas de apoio à decisão OLAP com as capacidades dos sistemas de informação geográfica (SIG). Com os trabalhos realizados por Rosa Martins (2006), Marlene Vitorino e Rodolfo Caldeira (2008), Ruben Jorge (2009) e Ricardo Silva (2010) foi desenvolvida uma abordagem genérica SOLAP que culminou com a implementação de um protótipo que, presentemente, já apresenta bastantes funcionalidades do ponto de vista da análise de dados e representação dos mesmos através de mapas temáticos e/ou gráficos. Para ajudar nessa tarefa de análise, integramos mecanismos de descoberta de relações entre os dados e apresentamos no mapa essas relações. Esta forma de análise permite ao utilizador retirar conclusões através da extracção de informações que não estão explícitas nos dados presentes na base de dados. Assim, o objectivo desta dissertação consiste em incorporar, respeitando o modelo multidimensional seguido, duas técnicas de indução: generalização de dominância espacial e generalização de dominância não espacial. Com os resultados da aplicação dessas técnicas, é feita uma caracterização semântica dos objectos espaciais no mapa

    SUBSTRATES FOR THE PRODUCTION OF ENTOMOPATHOGENIC ISOLATES OF Fusarium caatingaense TO CONTROL Dactylopius opuntiae

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    Opuntia ficus-indica (prickly pear) is used as a source of animal feed in Northeast Brazil. Its yield has been severely affected by insect pest Dactylopius opuntiae (cochineal scale). Fusarium caatingaense isolates have been reported to be effective in controlling this pest. Therefore, this study aimed to select substrates for the production of F. caatingaense. Conidia production and viability of five F. caatingaense isolates were evaluated on six substrates: rice, sugarcane bagasse, sugarcane bagasse + 0.66% w/v peptone, corn grains, corn grains + 0.66% w/v peptone, and sweet corn grains. Rice and corn were the best substrates for the production of most isolates. Isolate URM 6778 was selected for the analyses of sporulation, germination, and pathogenicity after storage in these substrates at 4 ºC and 28 ºC and periods of 0, 15, 30, and 60 days. Corn was the best substrate for the fungus and 4 ºC was the most suitable storage temperature. The highest conidia concentration was observed on the 30th day of storage, with a decrease on the 60th day. Conidia remained viable in all periods analyzed, except on the 60th day at 28 ºC. Pathogenicity against D. opuntiae was kept until 30 days of storage.Opuntia ficus-indica (palma forrageira) é utilizada como fonte de alimentação animal no Nordeste brasileiro. Sua produtividade tem sido afetada severamente pelo inseto Dactylopius opuntiae (cochonilha-do-carmim). Isolados de Fusarium caatingaense foram reportados como eficientes no controle dessa praga. Este estudo objetivou selecionar substratos para a produção de F. caatingaense. A produção e viabilidade de conídios de cinco isolados foram avaliadas em seis substratos: arroz, bagaço de cana-de-açúcar, bagaço de cana-de-açúcar + peptona 0,66% p/v, grãos de milho, grãos de milho + peptona 0,66% p/v, e grãos de milho doce. O arroz e milho foram os melhores substratos para produzir a maioria dos isolados. O isolado URM 6778 foi selecionado para análises de esporulação, germinação e patogenicidade após o armazenamento nesses substratos nas temperaturas 4 e 28 ºC, por 0, 15, 30 e 60 dias. O milho foi o melhor substrato para esse fungo, sendo a temperatura 4 ºC a mais indicada para o armazenamento. A maior concentração de conídios foi observada no trigésimo dia de armazenamento, havendo um decréscimo no sexagésimo dia. Os conídios mantiveram-se viáveis em todos os períodos analisados, exceto no sexagésimo dia a 28 ºC. A patogenicidade contra D. opuntiae foi mantida até 30 dias de armazenamento

    Public preferences for involvement in the governance of health data

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    Public involvement in the governance of epidemiological and public health studies can foster needs-driven research, enhance participants' recruitment, reduce attrition and improve the quality of and ethics in research and surveillance. However, it can also reinforce health inequalities if it fails to ensure public representation across socioeconomic gradients. This study aimed to assess patients' and carers' preferences for involvement in collective health data governance, and its associated factors, to strengthen the evidence base for policy development

    Biology teachers’ conceptions about the origin of life in Brazil, Argentina, And Uruguay: a comparative study

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    Teachers’ conceptions about the origin of life in three Latin American countries with contrasting levels of secularism were analyzed: Argentina (Catholic constitution), Brazil (formally secular but not in practice), and Uruguay (consolidated secularism). A European survey questionnaire was used and the interpretation of the results drew on Barbour's four categories concerning the relationships of science and religion. A large majority of Argentinian and Uruguayan teachers were clearly evolutionist, even when believing in God (Independence or Dialogue category), with no difference between Argentina and Uruguay. The majority of Brazilian teachers assumed a religious position about the origin of life, being creationist (Conflict or Independence categories) or evolutionary creationist (Dialogue or Integration categories). Differences of Brazilian teachers’ conceptions may result from the higher percentage of evangelicals and lower proportion of agnostics/atheists. Brazilian Catholic teachers were more creationist than their Catholic colleagues in Argentina and Uruguay. Distinct patterns were found, but further research is needed to understand possible classroom impacts.CIEC – Research Centre on Child Studies, IE, UMinho (FCT R&D unit 317), Portugal; National Funds through the FCT (Foundation for Science and Technology) and co-financed by European Regional Development Funds (FEDER) through the Competitiveness and Internationalization Operational Program (POCI) through CIEC (Research Centre on Child Studies, of the University of Minho) with the reference POCI-01-0145-FEDER-007562info:eu-repo/semantics/publishedVersio

    Haemophilus influenzae Carriage among Healthy Children in Portugal, 2015-2019

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    This article belongs to the Special Issue Haemophilus influenzae: New Insights in Epidemiology of Disease.Haemophilus influenzae is an important cause of mucosal and invasive infections and a common colonizer of the upper respiratory tract. As there are no recent data on H. influenzae carriage in Portugal, we aimed to characterize carriage samples and investigate possible parallelisms with disease isolates. Between 2016–2019, 1524 nasopharyngeal samples were obtained from children (0–6 years) attending day-care. H. influenzae were serotyped and screened for β-lactamase production. Strains producing β-lactamase and/or those that were encapsulated were further characterized by antibiotype; encapsulated strains were also investigated for MLST and the presence of antimicrobial resistance and virulence genes (extracted from whole genome sequencing). The overall carriage rate was 84.1%. Most isolates (96.7%) were nonencapsulated. Encapsulated strains were of serotypes f (1.8%), e (1.1%), a (0.3%), and b (0.1%). MLST showed clonality within serotypes. Although the lineages were the same as those that were described among disease isolates, colonization isolates had fewer virulence determinants. Overall, 7.5% of the isolates were β-lactamase positive; one isolate had blaTEM-82, which has not been previously described in H. influenzae. A single isolate, which was identified as H. parainfluenzae, had an incomplete f-like cap locus. In conclusion, circulation of serotype b is residual. The few encapsulated strains are genetically related to disease-causing isolates. Thus, surveillance of H. influenzae carriage should be maintained.This work was partially supported by projects LISBOA-01-0145-FEDER (Microbiologia Molecular, Estrutural e Celular, funded by FEDER through COMPETE2020—Programa Operacional Competitividade e Internacionalização), LISBOA-01-0145-FEDER-016417 (ONEIDA co-funded by Fundos Europeus Estruturais e de Investimento, Programa Operacional Regional Lisboa 2020 and Fundação para a Ciência e a Tecnologia (FCT)), WI230921 from Pfizer Portugal (to RSL), and National Institute of Health, Lisbon, Portugal. CC was supported by grant from Fundação para a Ciência e a Tecnologia, Portugal.info:eu-repo/semantics/publishedVersio

    O cerco multidimensional à Teerã e a aproximação sino-iraniana

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    O presente artigo tem por objetivo compreender como o cerco multidimensional a Teerã (2005-2015), liderado pelos Estados Unidos e seus aliados, incidiu sobre o processo da aproximação sino-iraniana. Por um lado, foi um contexto de recrudescimento do expansionismo da diplomacia estadunidense, sobretudo após os atentados de 11 de Setembro. Por outro, a diplomacia chinesa impulsionou as relações bilaterais com o Irã explorando as contradições decorrentes das sanções impostas pelos Estados Unidos e seus aliados. Assim, Beijing fortaleceu os laços com Teerã sem comprometer seus interesses estratégicos junto a Washington e Riad. Em suma, o custo para impor ao Irã os interesses dos Estados Unidos pode ser a precipitação de novos alinhamentos de poder no Oriente Médio e Eurásia, cujo grande beneficiário tende a ser a China e sua iniciativa da Nova Rota da Seda.    &nbsp
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