Efectos del ejercicio terapéutico, terapia manual y estrategias dietético nutricionales sobre la composición corporal y aspectos psicológicos en mujeres con fibromialgia.

La fibromialgia es una enfermedad de origen desconocido caracterizada por dolor muscular crónico, además, la ansiedad, los trastornos del estado de ánimo, los trastornos de la alimentación y del sueño y la insatisfacción con la imagen corporal son trastornos frecuentes en las mujeres con fibromialgia. La falta de conocimientos sobre esta enfermedad es una de las principales causas por las que resulta complejo realizar un diagnóstico y tratamiento adecuados. Tradicionalmente las investigaciones en el tratamiento no farmacológico de la fibromialgia son escasas y se han estudiado la mayoría de efectos del ejercicio terapéutico, las estrategias nutricionales y la terapia manual en pacientes sanos. Sin embargo, existen escasas investigaciones al respecto que apuntan resultados positivos en los síntomas característicos de la fibromialgia. El objetivo de la presente tesis doctoral fue determinar los efectos del ejercicio terapéutico y la terapia manual, así como determinar los efectos de distintas estrategias dietéticonutricionales sobre la composición corporal y aspectos psicológicos como: rasgo de ansiedad, estado de ánimo, trastornos alimentarios, percepción de la propia imagen, calidad del sueño y percepción del dolor en mujeres con FM.Actividad Física y Deport

Entanglement of a chiral fermion on the torus

In this paper we present the detailed calculation of a new modular Hamiltonian, namely that of a chiral fermion on a circle at non-zero temperature. We provide explicit results for an arbitrary collection of intervals, which we discuss at length by checking against known results in different limits and by computing the associated modular flow. We also compute the entanglement entropy, and we obtain a simple expression for it which appears to be more manageable than those already existing in the literature.Fil: Blanco, David Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Garbarz, Alan Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Pérez Nadal, Guillem. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentin

Modular conjugation for multicomponent regions

We consider a massless Dirac field in $1+1$ dimensions, and compute the Tomita-Takesaki modular conjugation corresponding to the vacuum state and a generic multicomponent spacetime region. We do it by analytic continuation from the modular flow, which was computed recently. We use our result to discuss the validity of Haag duality in this model.Comment: 20 pages, 10 figure

A Path Planning Algorithm for a Dynamic Environment Based on Proper Generalized Decomposition

[EN] A necessity in the design of a path planning algorithm is to account for the environment. If the movement of the mobile robot is through a dynamic environment, the algorithm needs to include the main constraint: real-time collision avoidance. This kind of problem has been studied by different researchers suggesting different techniques to solve the problem of how to design a trajectory of a mobile robot avoiding collisions with dynamic obstacles. One of these algorithms is the artificial potential field (APF), proposed by O. Khatib in 1986, where a set of an artificial potential field is generated to attract the mobile robot to the goal and to repel the obstacles. This is one of the best options to obtain the trajectory of a mobile robot in real-time (RT). However, the main disadvantage is the presence of deadlocks. The mobile robot can be trapped in one of the local minima. In 1988, J.F. Canny suggested an alternative solution using harmonic functions satisfying the Laplace partial differential equation. When this article appeared, it was nearly impossible to apply this algorithm to RT applications. Years later a novel technique called proper generalized decomposition (PGD) appeared to solve partial differential equations, including parameters, the main appeal being that the solution is obtained once in life, including all the possible parameters. Our previous work, published in 2018, was the first approach to study the possibility of applying the PGD to designing a path planning alternative to the algorithms that nowadays exist. The target of this work is to improve our first approach while including dynamic obstacles as extra parameters.This research was funded by the GVA/2019/124 grant from Generalitat Valenciana and by the RTI2018-093521-B-C32 grant from the Ministerio de Ciencia, Innovacion y Universidades.Falcó, A.; Hilario, L.; Montés, N.; Mora, MC.; Nadal, E. (2020). A Path Planning Algorithm for a Dynamic Environment Based on Proper Generalized Decomposition. Mathematics. 8(12):1-11. https://doi.org/10.3390/math8122245S111812Gonzalez, D., Perez, J., Milanes, V., & Nashashibi, F. (2016). A Review of Motion Planning Techniques for Automated Vehicles. IEEE Transactions on Intelligent Transportation Systems, 17(4), 1135-1145. doi:10.1109/tits.2015.2498841Rimon, E., & Koditschek, D. E. (1992). Exact robot navigation using artificial potential functions. IEEE Transactions on Robotics and Automation, 8(5), 501-518. doi:10.1109/70.163777Khatib, O. (1986). Real-Time Obstacle Avoidance for Manipulators and Mobile Robots. The International Journal of Robotics Research, 5(1), 90-98. doi:10.1177/027836498600500106Kim, J.-O., & Khosla, P. K. (1992). Real-time obstacle avoidance using harmonic potential functions. IEEE Transactions on Robotics and Automation, 8(3), 338-349. doi:10.1109/70.143352Connolly, C. I., & Grupen, R. A. (1993). The applications of harmonic functions to robotics. Journal of Robotic Systems, 10(7), 931-946. doi:10.1002/rob.4620100704Garrido, S., Moreno, L., Blanco, D., & Martín Monar, F. (2009). Robotic Motion Using Harmonic Functions and Finite Elements. Journal of Intelligent and Robotic Systems, 59(1), 57-73. doi:10.1007/s10846-009-9381-3Bai, X., Yan, W., Cao, M., & Xue, D. (2019). Distributed multi‐vehicle task assignment in a time‐invariant drift field with obstacles. IET Control Theory & Applications, 13(17), 2886-2893. doi:10.1049/iet-cta.2018.6125Bai, X., Yan, W., Ge, S. S., & Cao, M. (2018). An integrated multi-population genetic algorithm for multi-vehicle task assignment in a drift field. Information Sciences, 453, 227-238. doi:10.1016/j.ins.2018.04.044Falcó, A., & Nouy, A. (2011). Proper generalized decomposition for nonlinear convex problems in tensor Banach spaces. Numerische Mathematik, 121(3), 503-530. doi:10.1007/s00211-011-0437-5Chinesta, F., Leygue, A., Bordeu, F., Aguado, J. V., Cueto, E., Gonzalez, D., … Huerta, A. (2013). PGD-Based Computational Vademecum for Efficient Design, Optimization and Control. Archives of Computational Methods in Engineering, 20(1), 31-59. doi:10.1007/s11831-013-9080-xFalcó, A., Montés, N., Chinesta, F., Hilario, L., & Mora, M. C. (2018). On the Existence of a Progressive Variational Vademecum based on the Proper Generalized Decomposition for a Class of Elliptic Parameterized Problems. Journal of Computational and Applied Mathematics, 330, 1093-1107. doi:10.1016/j.cam.2017.08.007Domenech, L., Falcó, A., García, V., & Sánchez, F. (2016). Towards a 2.5D geometric model in mold filling simulation. Journal of Computational and Applied Mathematics, 291, 183-196. doi:10.1016/j.cam.2015.02.043Falcó, A., & Nouy, A. (2011). A Proper Generalized Decomposition for the solution of elliptic problems in abstract form by using a functional Eckart–Young approach. Journal of Mathematical Analysis and Applications, 376(2), 469-480. doi:10.1016/j.jmaa.2010.12.003Falcó, A., & Hackbusch, W. (2012). On Minimal Subspaces in Tensor Representations. Foundations of Computational Mathematics, 12(6), 765-803. doi:10.1007/s10208-012-9136-6Canuto, C., & Urban, K. (2005). Adaptive Optimization of Convex Functionals in Banach Spaces. SIAM Journal on Numerical Analysis, 42(5), 2043-2075. doi:10.1137/s0036142903429730Ammar, A., Chinesta, F., & Falcó, A. (2010). On the Convergence of a Greedy Rank-One Update Algorithm for a Class of Linear Systems. Archives of Computational Methods in Engineering, 17(4), 473-486. doi:10.1007/s11831-010-9048-

Effects of lacto-vegetarian diet and stabilization core exercises on body composition and pain in women with fibromyalgia: randomized controlled trial

Introducción: la fibromialgia es una enfermedad de origen desconocido caracterizada por dolor muscular crónico. La falta de conocimientos sobre esta enfermedad es una de las principales causas por las que resulta complejo realizar un diagnóstico y tratamiento adecuados. Objetivo: el objetivo principal de este estudio fue conocer la eficacia de un tratamiento de fisioterapia combinado con una intervención dietético-nutricional lacto-vegetariana, sobre el dolor bajo de espalda y la composición corporal en mujeres con fibromialgia. Métodos: en el estudio participaron 21 mujeres, que fueron divididas aleatoriamente en 3 grupos: A (ejercicios estabilización core + dieta lacto-vegetariana), B (placebo + dieta lacto-vegetariana) y C (control). La intervención tuvo una duración de 4 semanas y se realizaron evaluaciones del dolor (escala EVA), y de la composición corporal (bioimpedancia), al inicio y final de la intervención. Resultados: el grupo A mostró cambios significativos en la reducción del dolor y la composición corporal al final de la intervención, aumentando la masa muscular y disminuyendo la masa grasa. Además, este grupo mejoró significativamente los resultados en comparación con los grupos B y C. Las correlaciones realizadas mostraron una relación entre la masa muscular y la disminución del dolor referido al final del estudio en las pacientes del grupo A. Conclusiones: un programa de intervención de 4 semanas de duración en el que se combina ejercicios de estabilización de core más dieta lacto-vegetariana en pacientes con fibromialgia que presentan dolor bajo de espalda contribuye a la reducción del dolor y la mejora de la composición corporal.Background: fibromyalgia is a disease of unknown origin characterized by chronic muscular pain. The lack of knowledge about this disease is one of the main causes that makes complex to make a diagnosis and an appropriate treatment. Objective: the main objective of this study was to know the efficacy of a physiotherapy treatment combined with a lacto-vegetarian dietary-nutritional intervention, on low back pain and body composition in women with fibromyalgia. Methods: twenty-one women were randomly divided into three groups: A (core stabilization exercises + lacto-vegetarian diet), B (placebo + lacto-vegetarian diet) and C (control). The intervention lasted 4 weeks. Pain assessments (EVA scale) and body composition (bioimpedance) were performed at the beginning and at the end of the intervention. Results: group A showed significant changes in pain reduction and body composition at the end of the intervention, increasing muscle mass and decreasing fat mass. In addition, this group significantly improved outcomes compared to groups B and C. The correlations showed a relationship between muscle mass and pain reduction referred to at the end of the study in patients in group A. Conclusions: four-week intervention program combining core stabilization exercises plus lacto-vegetarian diet in patients with fibromyalgia who have low back pain contributes to pain reduction and improved body composition

Boundary-to-bulk maps for AdS causal wedges and RG flow

We consider the problem of defining spacelike-supported boundary-to-bulk propagators in AdSd+1 down to the unitary bound ∆ = (d − 2)/2. That is to say, we construct the ‘smearing functions’ K of HKLL but with different boundary conditions where both dimensions ∆+ and ∆− are taken into account. More precisely, we impose Robin boundary conditions, which interpolate between Dirichlet and Neumann boundary conditions and we give explicit expressions for the distributional kernel K with spacelike support. This flow between boundary conditions is known to be captured in the boundary by adding a double-trace deformation to the CFT. Indeed, we explicitly show that using K there is a consistent and explicit map from a Wightman function of the boundary QFT to a Wightman function of the bulk theory. In order to accomplish this we have to study first the microlocal properties of the boundary two-point function of the perturbed CFT and prove its wavefront set satisfies the microlocal spectrum condition. This permits to assert that K and the boundary two-point function can be multiplied as distributions.Fil: del Grosso, Nicolas Francisco. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Garbarz, Alan Nicolás. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Palau, Gabriel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; ArgentinaFil: Pérez Nadal, Guillem. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentin

Towards a Vector Field Based Approach to the Proper Generalized Decomposition (PGD)

[EN] A novel algorithm called the Proper Generalized Decomposition (PGD) is widely used by the engineering community to compute the solution of high dimensional problems. However, it is well-known that the bottleneck of its practical implementation focuses on the computation of the so-called best rank-one approximation. Motivated by this fact, we are going to discuss some of the geometrical aspects of the best rank-one approximation procedure. More precisely, our main result is to construct explicitly a vector field over a low-dimensional vector space and to prove that we can identify its stationary points with the critical points of the best rank-one optimization problem. To obtain this result, we endow the set of tensors with fixed rank-one with an explicit geometric structureThis research was funded by the GVA/2019/124 grant from Generalitat Valenciana and by the RTI2018-093521-B-C32 grant from the Ministerio de Ciencia, Innovacion y Universidades. DocumentFalco, A.; Hilario Pérez, L.; Montés Sánchez, N.; Mora Aguilar, MC.; Nadal, E. (2021). Towards a Vector Field Based Approach to the Proper Generalized Decomposition (PGD). Mathematics. 9(1):1-14. https://doi.org/10.3390/math9010034S1149

Un instrumento de interpretación de la acción educativa y de reflexión sobre la misma para el profesorado: el análisis de las tareas escolares, la estructura de la actividad y la evaluación

We need instruments that facilitate the analysis ofthe own educative practice ofteachers for a teaching improvement and an adequate profesional development. These instruments must interpret and clarify the type of teaching that is used in classrooms and also its componen! elements. The analysis of school works, the structure of activities, and the evaluation system, presented from the Doy!e's yet classical perspective, allow to outline the educative action's elements. Our article proposes the use of a model based on this analysis, guaranteed for a practica! experience and with the purpose of provide formative support at teachers, for an individual use and also for its development from permanent formation institutions.Se necesitan instrumentos que faciliten el análisis de la propia práctica educativa de los profesores para una mejora docente y un desarrollo profesional adecuado. Estos instrumentos deben ser interpretativos y clarificadores del tipo de enseñanza que se produce en las aulas, así como de sus elementos constituyentes. El análisis de las tareas escolares, la estructura de las actividades y el sistema de evaluación, presentados desde la perspectiva ya clásica de Doyle permiten esquematizar los elementos de la acción educativa. Nuestro artículo propone el uso de un modelo basado en este análisis, avalado por una experiencia práctica y con el fin de facilitar apoyo formativo al profesorado, tanto para un uso individual del mismo como para su desarrollo desde instancias de formación permanente

Effects of Manual Therapy on Fatigue, Pain, and Psychological Aspects in Women with Fibromyalgia

Fibromyalgia is a condition characterised by chronic widespread muscle pain and fatigue, sleep disturbances, cognitive disorders, and mood disturbance. The purpose of this study was to determine the effectiveness of a manual therapy technique performed with moderate digital pressure in women with fibromyalgia (n = 24). In this randomised, controlled trial, the participants were randomly assigned to the experimental group or placebo group. The experimental group was assisted with manual therapy sessions based on connective tissue massage, whereas the placebo group was “treated” with ultrasound sessions performed without conductive gel and with the machine turned off as the placebo. Fatigue severity scale (FSS), visual analogical scale (VAS), Pittsburgh sleep quality index (PSQI), and profile of mood states (POMS-29) were completed before and after the intervention. In the experimental group (manual therapy), significant results were obtained on a VAS scale, referring to the neck pain in patients with fibromyalgia (p < 0.001). Correlations showed a relationship between fatigue and sleep variables (R = 0.411; p = 0.046) and pain variables with the POMS anger-hostility subscale (R = 0.436; p = 0.033). Although the size of the sample could be a limitation, the study concluded that the application of manual therapy in fibromyalgia patients performed with moderate pressure for 15 min on the posterior cervical musculature decreased the perception of pain, muscle fatigue, and the state of tension-anxiety