Center Manifold and Exponentially-Bounded Solutions of a System of Parabolic Equations

AMS (MOS) subject classifications. primary: 34G10; secondary: 35B40

Statistical Thermodynamics of Polymer Quantum Systems

Polymer quantum systems are mechanical models quantized similarly as loop quantum gravity. It is actually in quantizing gravity that the polymer term holds proper as the quantum geometry excitations yield a reminiscent of a polymer material. In such an approach both non-singular cosmological models and a microscopic basis for the entropy of some black holes have arisen. Also important physical questions for these systems involve thermodynamics. With this motivation, in this work, we study the statistical thermodynamics of two one dimensional {\em polymer} quantum systems: an ensemble of oscillators that describe a solid and a bunch of non-interacting particles in a box, which thus form an ideal gas. We first study the spectra of these polymer systems. It turns out useful for the analysis to consider the length scale required by the quantization and which we shall refer to as polymer length. The dynamics of the polymer oscillator can be given the form of that for the standard quantum pendulum. Depending on the dominance of the polymer length we can distinguish two regimes: vibrational and rotational. The first occur for small polymer length and here the standard oscillator in Schr\"odinger quantization is recovered at leading order. The second one, for large polymer length, features dominant polymer effects. In the case of the polymer particles in the box, a bounded and oscillating spectrum that presents a band structure and a Brillouin zone is found. The thermodynamical quantities calculated with these spectra have corrections with respect to standard ones and they depend on the polymer length. For generic polymer length, thermodynamics of both systems present an anomalous peak in their heat capacity $C_V$

Satisfacción de las necesidades básicas de ancianos institucionalizados en dos establecimientos estatales, periodo setiembre - noviembre 2014

El envejecimiento es el fenómeno social colectivo más importante del siglo XXI, que tiene que ser afrontado como un desafío, y no como un problema. La asistencia sanitaria a los mayores constituye un campo especializado en el que los enfermeros necesitan un amplio conocimiento del cuerpo, grandes habilidades de relación, gran capacidad para el trabajo en equipo e intervención familiar, así como cualidades personales como la paciencia y el respeto. A medida que los ancianos presentan cambios físicos, biológicos, sociales y cognitivos, van surgiendo múltiples necesidades y problemas que requieren de la comprensión y cuidados por parte del profesional de enfermería, de manera que mediante las acciones que esta presta, pueda lograr en los ancianos un nivel funcional óptimo. Las necesidades humanas fundamentales son finitas, pocas y clasificables. Estas incluyen: subsistencia (salud, alimentación, etc.), protección (sistemas de seguridad y prevención, vivienda, etc.), afecto (familia, amistades, privacidad, etc.) entendimiento (educación, comunicación, etc.), participación (derechos, responsabilidades, trabajo, etc.), ocio (juegos, espectáculos) creación (habilidades, destrezas), identidad (grupos de referencia, sexualidad, valores), libertad (igualdad de derechos). Las necesidades humanas básicas referidas, deben constituirse en derechos inalienables del ser humano, ya que su posesión y práctica hacen a la dignidad del individuo y las comunidades. La satisfacción de estas necesidades implica un marco ambiental sano. Este trabajo de investigación tiene como objetivo determinar sí los cuidados de enfermería satisfacen las necesidades básicas de los ancianos hospitalizados en Hospital Gailhac y Hogar Santa Marta en la provincia de Mendoza, en el año 2014.Fil: Acosta, Malvina. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Escuela de Enfermería..Fil: Vega, Carlos Hugo. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Escuela de Enfermería.

Multirobot heterogeneous control considering secondary objectives

Cooperative robotics has considered tasks that are executed frequently, maintaining the shape and orientation of robotic systems when they fulfill a common objective, without taking advantage of the redundancy that the robotic group could present. This paper presents a proposal for controlling a group of terrestrial robots with heterogeneous characteristics, considering primary and secondary tasks thus that the group complies with the following of a path while modifying its shape and orientation at any time. The development of the proposal is achieved through the use of controllers based on linear algebra, propounding a low computational cost and high scalability algorithm. Likewise, the stability of the controller is analyzed to know the required features that have to be met by the control constants, that is, the correct values. Finally, experimental results are shown with di erent configurations and heterogeneous robots, where the graphics corroborate the expected operation of the proposalThis research was funded by Corporación Ecuatoriana para el Desarrollo de la Investigación y Academia–CEDI

What drives unhappiness? A cross-country analysis

We study the sources of misery (lowest level of life satisfaction) using the European Quality of Life 2016, a cross-sectional survey for 28 European Union countries. We use the decomposition of misery, multivariate analysis and a structural equation model to assess which are the main sources to explain misery: risk of depression (mental health), unemployment, poverty or chronic health problems (physical health). Regardless of the methodological approach followed, we found consistently that the effect of mental health on misery is the largest, exceeding poverty and unemployment. Nonetheless, stigma and low access are the main barriers for mental health attention; therefore, policy goals should proactively promote attention, efficient prevention and early diagnosis of mental health problems.Funding for open access charge: Universidad de Málaga / CBU

Globalización de la Educación Superior en Paraguay, Ofertas crecientes

Obj. Analizar la incidencia del crecimiento de la educación superior en el desarrollo evolutivo del Paragua

On the structure of the diffusion distance induced by the fractional dyadic Laplacian

In this note we explore the structure of the diffusion metric of Coifman-Lafon determined by fractional dyadic Laplacians. The main result is that, for each ${t>0}$, the diffusion metric is a function of the dyadic distance, given in $\mathbb{R}^+$ by $\delta(x,y) = \inf\{|I|: I \text{ is a dyadic interval containing } x \text{ and } y\}$. Even if these functions of $\delta$ are not equivalent to $\delta$, the families of balls are the same, to wit, the dyadic intervals.Comment: 8 page

On Frink's type metrization of weighted graphs

Using the technique of the metrization theorem of uniformities with countable bases, in this note we provide, test and compare an explicit algorithm to produce a metric d(x,y) between the vertices x and y of an affinity weighted undirected graph.Fil: Acosta, Maria Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Matemática Aplicada del Litoral. Universidad Nacional del Litoral. Instituto de Matemática Aplicada del Litoral; ArgentinaFil: Aimar, Hugo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Matemática Aplicada del Litoral. Universidad Nacional del Litoral. Instituto de Matemática Aplicada del Litoral; ArgentinaFil: Gomez, Ivana Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Matemática Aplicada del Litoral. Universidad Nacional del Litoral. Instituto de Matemática Aplicada del Litoral; Argentin