15 research outputs found

    Shuffle, cut, and learn: Crypto Go, a card game for teaching cryptography

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    This article belongs to the Special Issue Mathematical Modeling and Simulation in Science and Engineering Education II.Cryptography is the mathematical core of information security. It serves both as a source of hard computational problems and as precise language allowing for the formalization of sound security models. While dealing with the mathematical foundations of cybersecurity is only possible in specialized courses (tertiary level and beyond), it is essential to promote the role of mathematics in this field at early educational stages. With this in mind, we introduce Crypto Go, a physical card game that may be used both as a dissemination and as an educational tool. The game is carefully devised in order to entertain and stimulate players, while boosting their understanding on how basic cryptographic tools work and interplay. To get a preliminary assessment of our design, we collected data from a series of test workshops, which engaged over two hundred players from different ages and educational backgrounds. This basic evaluation indeed confirms that Crypto Go significantly improves students' motivation and has a positive impact in their perception and understanding of the field.The printouts of Crypto Go decks, and some of the experimental workshops described in this paper have been financially supported by several institutions: Instituto Nacional de Ciberseguridad (INCIBE; contract 2018/00520/001), Fundación Madri+d (Science Week), and Universidad Carlos III de Madrid (Technological Fridays). M.I.G.V.'s work is funded by the NATO Science for Peace and Security Programme, grant number G5448 and by MINECO under Grant MTM2016-77213-R

    Historia Cultural del pasado reciente cordobés : juventudes, artes y políticas en la transición democrática de la década de 1980

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    Con esta presentación multimedia intentamos entablar contacto con los colegas de otras regiones nacionales sobre las prácticas artísticas que formaron parte del pasado reciente argentino: particularmente, la coyuntura de transición entre la última dictadura y el retorno democrático. Consideramos que la reconstrucción histórica de la década de 1980 presenta inquietantes lagunas en terrenos provinciales, especialmente si se trata de enfoques teóricos (y objetos) culturales. En ese marco, pretendemos socializar nuestras experiencias de investigación, colectivas e individuales, desarrolladas desde y sobre Córdoba. Además de compartir un concreto espacio-temporal de interés, nuestros ejes analíticos se articulan alrededor de tres temas: juventudes, artes y políticas. Al respecto, nuestras hipótesis generales sostienen que: Los "jóvenes" en general (y los "jóvenes artistas" en particular) fueron considerados, durante la transición democrática, actores sociales peligrosos; en base a ello, devinieron configurados como singulares objetos de preocupación social y de control administrativo (Cf. Foucault, 1976; Chaves, 2006). Las políticas culturales (Miller & Yúdice, 2004) ocuparon un lugar destacado tanto en el período dictatorial como en el democrático, en especial las dedicadas al "fomento de los jóvenes artistas" y a la socialización de públicos juveniles. Mientras encontramos permanencias respecto de la promoción de prácticas artísticas, que para el discurso oficial eran sinónimo de "Cultura", advertimos discontinuidades en torno a la función social adjudicada por los respectivos gobiernos a las artes: en dictadura, un "arma espiritual" que complementaba la guerra armada desarrollada contra los sujetos e ideas considerados "subversivos"; en el retorno democrático, una herramienta estética que permitiendo la heterogeneidad y la experimentación buscaba contribuir en el plan de democratización de la cultura (González, 2011, 2012).Fil: González, Alejandra Soledad. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Centro de Investigaciones. Área de Historia; Argentina.Fil: Basile, María Verónica. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Centro de Investigaciones. Área de Historia; Argentina.Fil: Bruno, María Sol. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Centro de Investigaciones. Área de Historia; Argentina.Fil: Chabrando, Victoria. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Centro de Investigaciones. Área de Historia; Argentina.Fil: Cascos, Ana. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Centro de Investigaciones. Área de Historia; Argentina.Fil: Heredia, Verónica. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Centro de Investigaciones. Área de Historia; Argentina.Fil: Reches, Ana Laura. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Centro de Investigaciones. Área de Historia; Argentina.Fil: Floridia, Yanina. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Centro de Investigaciones. Área de Historia; Argentina.Tópicos Sociales (estudios de género, estudios de familia, trabajo social, etc.

    Referral from primary care to a physical activity programme : establishing long-term adherence? A randomized controlled trial. Rationale and study design

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    Background: Declining physical activity is associated with a rising burden of global disease. There is little evidence about effective ways to increase adherence to physical activity. Therefore, interventions are needed that produce sustained increases in adherence to physical activity and are cost-effective. The purpose is to assess the effectiveness of a primary care physical activity intervention in increasing adherence to physical activity in the general population seen in primary care. Method and design: Randomized controlled trial with systematic random sampling. A total of 424 subjects of both sexes will participate; all will be over the age of 18 with a low level of physical activity (according to the International Physical Activity Questionnaire, IPAQ), self-employed and from 9 Primary Healthcare Centres (PHC). They will volunteer to participate in a physical activity programme during 3 months (24 sessions; 2 sessions a week, 60 minutes per session). Participants from each PHC will be randomly allocated to an intervention (IG) and control group (CG). The following parameters will be assessed pre and post intervention in both groups: (1) health-related quality of life (SF-12), (2) physical activity stage of change (Prochaska's stages of change), (3) level of physical activity (IPAQ-short version), (4) change in perception of health (vignettes from the Cooperative World Organization of National Colleges, Academies, and Academic Associations of Family Physicians, COOP/WONCA), (5) level of social support for the physical activity practice (Social Support for Physical Activity Scale, SSPAS), and (6) control based on analysis (HDL, LDL and glycated haemoglobin). Participants' frequency of visits to the PHC will be registered over the six months before and after the programme. There will be a follow up in a face to face interview three, six and twelve months after the programme, with the reduced version of IPAQ, SF-12, SSPAS, and Prochaska's stages. Discussion: The pilot study showed the effectiveness of an enhanced low-cost, evidence-based intervention in increased physical activity and improved social support. If successful in demonstrating long-term improvements, this randomised controlled trial will be the first sustainable physical activity intervention based in primary care in our country to demonstrate long-term adherence to physical activity

    Shuffle, Cut, and Learn: Crypto Go, a Card Game for Teaching Cryptography

    No full text
    Cryptography is the mathematical core of information security. It serves both as a source of hard computational problems and as precise language allowing for the formalization of sound security models. While dealing with the mathematical foundations of cybersecurity is only possible in specialized courses (tertiary level and beyond), it is essential to promote the role of mathematics in this field at early educational stages. With this in mind, we introduce Crypto Go, a physical card game that may be used both as a dissemination and as an educational tool. The game is carefully devised in order to entertain and stimulate players, while boosting their understanding on how basic cryptographic tools work and interplay. To get a preliminary assessment of our design, we collected data from a series of test workshops, which engaged over two hundred players from different ages and educational backgrounds. This basic evaluation indeed confirms that Crypto Go significantly improves students’ motivation and has a positive impact in their perception and understanding of the field

    Design, synthesis, structure and properties of Ba-doped derivatives of SrCo0.95Ru0.05O3−δ perovskite as cathode materials for SOFCs

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    We have designed and prepared a novel cathode material for solid oxide fuel cell (SOFC) based on SrCo0.95Ru0.05O3−δ perovskite. We have partially replaced Sr by Ba in Sr0.9Ba0.1Co0.95Ru0.05O3−δ (SBCRO) in order to expand the unit-cell size, thereby improving the ionic diffusion of O2− through the crystal lattice. The characterization of this new oxide has been studied at room temperature by X-ray diffraction (XRD) and neutron powder diffraction (NPD) experiments. At room temperature, SBCRO perovskite crystallizes in the P4/mmm tetragonal space group, as observed from NDP data. The maximum conductivity value of 18.6 S cm−1 is observed at 850 °C. Polarization resistance measurements on LSGM electrolyte demonstrate an improvement in conductivity with respect to the parent Sr-only perovskite cathode. A good chemical compatibility and an adequate thermal expansion coefficient make this oxide auspicious for using it as a cathode in SOFC.This research was funded by Spanish Ministry of Industry and Competitiveness, project number MAT2017-84496-R, Spain.Peer reviewe

    Referral from primary care to a physical activity programme : establishing long-term adherence? A randomized controlled trial. Rationale and study design

    No full text
    Background: Declining physical activity is associated with a rising burden of global disease. There is little evidence about effective ways to increase adherence to physical activity. Therefore, interventions are needed that produce sustained increases in adherence to physical activity and are cost-effective. The purpose is to assess the effectiveness of a primary care physical activity intervention in increasing adherence to physical activity in the general population seen in primary care. Method and design: Randomized controlled trial with systematic random sampling. A total of 424 subjects of both sexes will participate; all will be over the age of 18 with a low level of physical activity (according to the International Physical Activity Questionnaire, IPAQ), self-employed and from 9 Primary Healthcare Centres (PHC). They will volunteer to participate in a physical activity programme during 3 months (24 sessions; 2 sessions a week, 60 minutes per session). Participants from each PHC will be randomly allocated to an intervention (IG) and control group (CG). The following parameters will be assessed pre and post intervention in both groups: (1) health-related quality of life (SF-12), (2) physical activity stage of change (Prochaska's stages of change), (3) level of physical activity (IPAQ-short version), (4) change in perception of health (vignettes from the Cooperative World Organization of National Colleges, Academies, and Academic Associations of Family Physicians, COOP/WONCA), (5) level of social support for the physical activity practice (Social Support for Physical Activity Scale, SSPAS), and (6) control based on analysis (HDL, LDL and glycated haemoglobin). Participants' frequency of visits to the PHC will be registered over the six months before and after the programme. There will be a follow up in a face to face interview three, six and twelve months after the programme, with the reduced version of IPAQ, SF-12, SSPAS, and Prochaska's stages. Discussion: The pilot study showed the effectiveness of an enhanced low-cost, evidence-based intervention in increased physical activity and improved social support. If successful in demonstrating long-term improvements, this randomised controlled trial will be the first sustainable physical activity intervention based in primary care in our country to demonstrate long-term adherence to physical activity
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