63,698 research outputs found

    From Little Words, Big Words Grow: Annotations on the Yo, Sí Puedo Experience in Brewarrina, Australia

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    This article is a reflection on the application of the Cuban literacy methodology Yo, Sí Puedo to the Australian setting. The Yo, Sí Puedo / Yes, I Can! model developed in Cuba by the Instituto Pedagógico Latinoamericano y Caribeño, IPLAC (Institute of Pedagogy for Latin America and the Caribbean) has been successfully implemented across the Global South as a strategy of adult literacy. It is a legacy of our Latin American revolutionary roots, with its origin in the Freirean pedagogy of the oppressed. Expanding across continents this model continues to teach reading and writing to disenfranchised adults in marginal and Indigenous communities, from the Argentinean Chaco to Brewarrina in northern NSW, Australia. Its aim is to contribute to the hope of improving the health and educational outcomes of the country’s First Peoples. This article is indebted to conversations with the Cuban advisor of Yes, I Can!, José Manuel Chala Leblanch. Observing him working in the classroom setting of Brewarrina touched me at different levels: personally because it reminded me of my own family experiences with the education system in my country, Argentina; and professionally as an educator negotiating different languages and cultures. It also reinforced my belief in the importance of incorporating Indigenous ways of learning and teaching to Western styles of teaching and learning. I built this reflection moving from personal and poetic—visual and textual—narratives and observations to academic interventions informed by researched literature on adult and Indigenous education

    Charm mixing and CP violation

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    Experimental results on charm mixing and CP violation searches are reviewed. This paper focus on results released after FPCP 2013.Comment: Presented at the 2014 Flavor Physics and CP Violation (FPCP-2014), Marseille, France, May 26-30 2014, 21 pages, 15 figure

    The tetrahexahedric angular Calogero model

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    The spherical reduction of the rational Calogero model (of type An−1A_{n-1} and after removing the center of mass) is considered as a maximally superintegrable quantum system, which describes a particle on the (n−2)(n{-}2)-sphere subject to a very particular potential. We present a detailed analysis of the simplest non-separable case, n=4n{=}4, whose potential is singular at the edges of a spherical tetrahexahedron. A complete set of independent conserved charges and of Hamiltonian intertwiners is constructed, and their algebra is elucidated. They arise from the ring of polynomials in Dunkl-deformed angular momenta, by classifying the subspaces invariant and antiinvariant under all Weyl reflections, respectively.Comment: 1+29 pages, 4 figures; v2: Introduction extended, eq.(5.16) and one ref. added, published versio

    Thermodynamics of Lovelock black holes with a nonminimal scalar field

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    We source the Lovelock gravity theories indexed by an integer k and fixed by requiring a unique anti-de Sitter vacuum with a self-interacting nonminimal scalar field in arbitrary dimension d. For each inequivalent Lovelock gravity theory indexed by the integer k, we establish the existence of a two-parametric self-interacting potential that permits to derive a class of black hole solutions with planar horizon for any arbitrary value of the nonminimal coupling parameter. In the thermodynamical analysis of the solution, we show that, once regularized the Euclidean action, the mass contribution coming form the gravity side exactly cancels, order by order, the one arising from the matter part yielding to a vanishing mass. This result is in accordance with the fact that the entropy of the solution, being proportional to the lapse function evaluated at the horizon, also vanishes. Consequently, the integration constant appearing in the solution is interpreted as a sort of hair which turns out to vanish at high temperature.Comment: 11 page
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