Educación Popular en Argentina

El trabajo que se presenta a continuación expone el tema de la Educación Popular en el contexto argentino, repasa la comprensión del término e investiga cómo surgió la Educación Popular y la trayectoria que ésta ha seguido a lo largo de la historia, haciendo una mención especial a la década de los sesenta, setenta y ochenta. A continuación define sus prácticas y concepciones actuales, en la perspectiva de construir alternativas que sustituyan las formas y modelos tradicionales de organización social, para lo que muestra una propuesta concreta de Educación Popular que busca un modelo de sociedad más justo y democrático.Grado en Educación Socia

La esclerosis lateral amiotrófica: un complejo jeroglífico

Revisión bibliográfica selectiva y crítica sobre la Esclerosis Lateral Amiotrófica incidiendo en aspectos como la clínica, los diferentes métodos diagnósticos y el tratamiento tanto actual como nuevas líneas de investigación vigentes. La Esclerosis Lateral Amiotrófica (ELA) es una enfermedad neurodegenerativa rápidamente progresiva que afecta a ambas motoneuronas (superior e inferior). Aunque puede afectar a ambos sexos, son los hombres los que presentan un riesgo incrementado de padecerla. Aparece entre la quinta y la séptima década de la vida y en ella intervienen tanto factores genéticos (C9orf72, SOD1 FUS, TARBDP) como ambientales (pesticidas, toxinas orgánicas, radiaciones electromagnéticas y plomo). Además, según su patrón de herencia, se pueden distinguir la ELA esporádica (90%) que aparece en ausencia de antecedentes familiares y la ELA familiar (10%) en la que existen casos previos. Clínicamente se manifiesta por la presencia de una paresia progresiva que afecta también a la musculatura bulbar y ocasiona, por tanto, disfagia, disartria e insuficiencia respiratoria, siendo esta última la principal causa de muerte. No existe afectación sensitiva ni de los esfínteres y aunque en la mayor parte de los pacientes no existe afectación cognitiva, entre un 15-50% puede presentarla y generalmente suele aparecer en forma de demencia fronto-temporal. Es una enfermedad difícil de diagnosticar y éste suele ser el verdadero motivo por el cual se retrasa el inicio del tratamiento, teniendo en cuenta, además, que existen múltiples enfermedades con las que se podría confundir. El tratamiento debe ser integral y multidisciplinar. Farmacológicamente destaca el riluzole aunque están surgiendo otras alternativas como edaravone. Además, es importante destacar las nuevas líneas de investigación a nivel de la terapia génica, masitinib y la molécula 123C4. A pesar de ello, sigue siendo una enfermedad incurable y con una esperanza de vida que oscila entre los 3 y los 5 años desde el momento del diagnóstico.Grado en Medicin

Quantum transport in nanowires with spin-orbit interaction: effect of quasi-bound states.

137 p.En esta tesis abordamos este tema y presentamos un estudio teórico exhaustivo del transporte electrónicoen nanohilos cuánticos semiconductores con interacción espín-órbita en la presencia de impurezas.Modelamos el nanohilo cuántico como un sistema cuasi-unidimensional en el que el movimiento de loselectrones está confinado en la dirección perpendicular a la de propagación. La competición entre lainteracción espín-orbita, el confinamiento lateral y la impureza hace que el problema sea altamente notrivial.Para hacer frente a este problema usamos una combinación de técnicas y aproximaciones que nospermiten identificar novedosas propiedades del transporte de carga y del transporte de espín.Específicamente, describimos la conductancia mediante el formalismo de Landauer-Büttiker,extendiéndolo para el caso de campos dependientes del espín. Describimos el transporte a traves de esteformalismo en función de los coeficientes de scattering. Para calcular los coeficientes de la matriz descattering usamos la ecuación de Lippmann-Schwinger, un método ampliamente usado en el tratamientodel scattering en la mecánica cuántica

Quantum transport in nanowires with spin-orbit interaction: effect of quasi-bound states.

137 p.En esta tesis abordamos este tema y presentamos un estudio teórico exhaustivo del transporte electrónicoen nanohilos cuánticos semiconductores con interacción espín-órbita en la presencia de impurezas.Modelamos el nanohilo cuántico como un sistema cuasi-unidimensional en el que el movimiento de loselectrones está confinado en la dirección perpendicular a la de propagación. La competición entre lainteracción espín-orbita, el confinamiento lateral y la impureza hace que el problema sea altamente notrivial.Para hacer frente a este problema usamos una combinación de técnicas y aproximaciones que nospermiten identificar novedosas propiedades del transporte de carga y del transporte de espín.Específicamente, describimos la conductancia mediante el formalismo de Landauer-Büttiker,extendiéndolo para el caso de campos dependientes del espín. Describimos el transporte a traves de esteformalismo en función de los coeficientes de scattering. Para calcular los coeficientes de la matriz descattering usamos la ecuación de Lippmann-Schwinger, un método ampliamente usado en el tratamientodel scattering en la mecánica cuántica

Automatic Synthesis of Logical Models for Order-Sorted First-Order Theories

[EN] In program analysis, the synthesis of models of logical theories representing the program semantics is often useful to prove program properties. We use order-sorted first- order logic as an appropriate framework to describe the semantics and properties of programs as given theories. Then we investigate the automatic synthesis of models for such theories. We use convex polytopic domains as a flexible approach to associate different domains to different sorts. We introduce a framework for the piecewise definition of functions and predicates. We develop its use with linear expressions (in a wide sense, including linear transformations represented as matrices) and inequalities to specify functions and predicates. In this way, algorithms and tools from linear algebra and arithmetic constraint solving (e.g., SMT) can be used as a backend for an efficient implementation.Partially supported by the EU (FEDER), projects TIN2015-69175-C4-1-R, and GV PROMETEOII/2015/ 013. R. Gutiérrez also supported by Juan de la Cierva Fellowship JCI-2012-13528.Lucas Alba, S.; Gutiérrez Gil, R. (2018). Automatic Synthesis of Logical Models for Order-Sorted First-Order Theories. Journal of Automated Reasoning. 60(4):465-501. https://doi.org/10.1007/s10817-017-9419-3S465501604Alarcón, B., Gutiérrez, R., Lucas, S., Navarro-Marset, R.: Proving termination properties with MU-TERM. In: Proceedings of AMAST’10. LNCS, vol. 6486, pp. 201–208 (2011)Alarcón, B., Lucas, S., Navarro-Marset, R.: Using matrix interpretations over the reals in proofs of termination. In: Proceedings of PROLE’09, pp. 255–264 (2009)Albert, E., Genaim, S., Gutiérrez, R.: A Transformational Approach to Resource Analysis with Typed-Norms. Revised Selected Papers from LOPSTR’13. LNCS, vol. 8901, pp 38–53 (2013)de Angelis, E., Fioravante, F., Pettorossi, A., Proietti, M.: Proving correctness of imperative programs by linearizing constrained Horn clauses. Theory Pract. Log. 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MU-TERM: Verify Termination Properties Automatically (System Description)

[EN] We report on the new version of mu-term, a tool for proving termination properties of variants of rewrite systems, including conditional, context-sensitive, equational, and order-sorted rewrite systems. We follow a unified logic-based approach to describe rewriting computations. The automatic generation of logical models for suitable first-order theories and formulas provide a common basis to implement the proofs.Supported by EU (FEDER), and projects RTI2018-094403-B-C32,PROMETEO/ 2019/098, and SP20180225. Also by INCIBE program "Ayudas para la excelencia de los equipos de investigación avanzada en ciberseguridad" (Raul Gutiérrez).Gutiérrez Gil, R.; Lucas Alba, S. (2020). MU-TERM: Verify Termination Properties Automatically (System Description). Springer Nature. 436-447. https://doi.org/10.1007/978-3-030-51054-1_28S436447Alarcón, B., et al.: Improving context-sensitive dependency pairs. In: Cervesato, I., Veith, H., Voronkov, A. (eds.) LPAR 2008. LNCS (LNAI), vol. 5330, pp. 636–651. Springer, Heidelberg (2008). https://doi.org/10.1007/978-3-540-89439-1_44Alarcón, B., Gutiérrez, R., Lucas, S.: Context-sensitive dependency pairs. Inf. Comput. 208(8), 922–968 (2010). https://doi.org/10.1016/j.ic.2010.03.003Alarcón, B., Gutiérrez, R., Lucas, S., Navarro-Marset, R.: Proving termination properties with mu-term. In: Johnson, M., Pavlovic, D. (eds.) AMAST 2010. LNCS, vol. 6486, pp. 201–208. Springer, Heidelberg (2011). https://doi.org/10.1007/978-3-642-17796-5_12Alarcón, B., Lucas, S., Meseguer, J.: A dependency pair framework for $${A} \vee {C}$$-termination. In: Ölveczky, P.C. (ed.) WRLA 2010. LNCS, vol. 6381, pp. 35–51. Springer, Heidelberg (2010). https://doi.org/10.1007/978-3-642-16310-4_4Arts, T., Giesl, J.: Termination of term rewriting using dependency pairs. Theor. Comput. Sci. 236(1–2), 133–178 (2000). https://doi.org/10.1016/S0304-3975(99)00207-8Clavel, M., et al.: All About Maude - A High-Performance Logical Framework. LNCS, vol. 4350. Springer, Heidelberg (2007). https://doi.org/10.1007/978-3-540-71999-1Endrullis, J., Waldmann, J., Zantema, H.: Matrix interpretations for proving termination of term rewriting. J. Autom. Reasoning 40(2–3), 195–220 (2008). https://doi.org/10.1007/s10817-007-9087-9Giesl, J., Arts, T.: Verification of erlang processes by dependency pairs. Appl. Algebra Eng. Commun. Comput. 12(1/2), 39–72 (2001). https://doi.org/10.1007/s002000100063Giesl, J., Thiemann, R., Schneider-Kamp, P.: Proving and disproving termination of higher-order functions. In: Gramlich, B. (ed.) FroCoS 2005. LNCS (LNAI), vol. 3717, pp. 216–231. Springer, Heidelberg (2005). https://doi.org/10.1007/11559306_12Giesl, J., Thiemann, R., Schneider-Kamp, P., Falke, S.: Mechanizing and improving dependency pairs. J. Autom. 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infChecker. A Tool for Checking Infeasibility

[EN] Given a Conditional Term Rewriting System (CTRS) R and terms s and t, we say that the reachability condition s ->* t is *feasible* if there is a substitution \sigma instantiating the variables in s and t such that the *reachability test* \sigma(s)->* \sigma(t) succeeds; otherwise, we call it *infeasible*. Checking infeasibility of such (sequences of) reachability conditions is important in the analysis of computational properties of CTRSs, like confluence or operational termination. Recently, a logic-based approach to prove and disprove infeasibility has been introduced. In this paper we present infChecker, a new tool for checking infeasibility which is based on such an approach.Partially supported by the EU (FEDER), and projects RTI2018-094403-B-C32, PROMETEO/2019/098, and SP20180225. Raul Gutierrez was also supported by INCIBE program Ayudas para la excelencia de los equipos de investigacion avanzada en ciberseguridad.Gutiérrez Gil, R.; Lucas Alba, S. (2019). infChecker. A Tool for Checking Infeasibility. Universidade de Brasilia. 38-42. http://hdl.handle.net/10251/181069S384

Propuestas didácticas para la resolución de conflictos en el aula

El presente trabajo de investigación, pretendió dar respuesta a las situaciones de conflicto generadas en el aula del 4: B, a través de propuestas didácticas que ayudaron a la implementación de una Unidad Didáctica sobre resolución de conflictos en el aula, de la Institución Educativa Antonio Nariño de Calarcá Quindío. El referente teórico conceptual tiene como base a Dewey, Pagés y Cajiao, en las didácticas de las Ciencias Sociales, en cuanto al desarrollo del pensamiento crítico reflexivo en los estudiantes; Santisteban, Pagés y Fernández hacen un aporte a la estructura de la Unidad Didáctica, así como también, Zabala define la secuencia Didáctica como un conjunto de actividades ordenadas y organizadas para el logro de un objetivo. Finalmente, Chaux y Zubiria (2004) orientan sobre cómo manejar los conflictos de manera pacífica, a través de la empatía y el asertividad. El objetivo propuesto para la investigación, fue Analizar las propuestas didácticas que ayudaron en la implementación de una unidad didáctica, para la resolución de conflictos en el aula de grado 4: B, de la Institución Educativa Antonio Nariño, de Calarcá Quindío. Dichas propuestas permitieron desarrollar no solamente las estrategias para la resolución de conflictos en el aula, sino reflexionar sobre nuestra práctica educativa. El enfoque socioconstructivista, permitió a través del aprendizaje colaborativo las múltiples interacciones entre el estudiante-estudiante, docente-estudiante, alrededor de un contenido “el conflicto”, conduciéndolo a la construcción de su propio aprendizaje desde el contexto y así reflexionar sobre sus actuaciones, para contribuir a la resolución de conflictos en forma pacífica en el aula. El método cualitativo, facilitó comprender la realidad del aula en forma crítica, combinando la etnografía y la participación-acción, para detectar y analizar conductas conflictivas en los estudiantes, a través de la implementación de la Unidad Didáctica y llegar a la resolución de conflictos en el aula