Libertad de expresión: un estudio jurídico comparado con la doctrina CIDH y la jurisprudencia nacional

Artículo de investigaciónMediante el presente trabajo de investigación se realizó un estudio sobre el origen del derecho a la libertad de expresión en Colombia, su desarrollo a nivel nacional a través de jurisprudencia de la Corte Constitucional, como internacional mediante un análisis doctrinal de la Comisión Interamericana de Derechos Humanos como de otros autores expertos en la materia y jurisprudencial de la Corte Interamericana de Derechos Humanos; así mismo se identificaron los alcances, responsabilidades y límites del derecho de libertad de expresión.1. La Libertad de expresión 2. Del derecho fundamental de la libertad de expresión en la constitución colombiana de 1991 3. De la Libertad de expresión en la Doctrina de la Comisión Interamericana de derecho Humanos (CIDH). 4. Análisis doctrinal de otras formas de materializar el derecho a la libertad de expresión. Conclusiones ReferenciasPregradoAbogad

Force-Torque Sensing in Robotics

Being able to perform dynamic motions repeatably and reliably is an active research topic. The present thesis aims to contribute to this by improving the accuracy of force-torque sensing in robots. It focuses primarily on six axis force-torque sensors, although other sources of force-torque sensing are explored. Force sensing technologies, calibration procedures of these sensors and the use of force-torque sensing in robotics are described with the aim to familiarize the reader with the problem to solve. The problem is tackled in two ways: improving the accuracy of six axis force-torque sensors and exploring the use of tactile sensor arrays as force-torque sensors. The contributions of this thesis are : the development of the Model Based In situ calibration method for improving measurements of sensors already mounted on robots and the improvement in performance of the robot as a consequence; the design of a calibration device to improve the reliability and speed of calibration; and the improvement of force sensing information of a capacitive tactile array and its use on a robot as force-torque information source. The developed algorithms were tested on the humanoid robotic platform iCub

Scaling of conductance through quantum dots with magnetic field

Using different techniques, and Fermi-liquid relationships, we calculate the variation with the applied magnetic field (up to second order) of the zero-temperature equilibrium conductance through a quantum dot described by the impurity Anderson model. We focus on the strong-coupling limit U, where U is the Coulomb repulsion and is half the resonant-level width, and consider several values of the dot level energy E d , ranging from the Kondo regime to the intermediate-valence regime F − E d ∼ , where F is the Fermi energy. We have mainly used the density-matrix renormalization group (DMRG) and the numerical renormalization group (NRG) combined with renormalized perturbation theory (RPT). Results for the dot occupancy and magnetic susceptibility from the DMRG and NRG + RPT are compared with the corresponding Bethe ansatz results for U → ∞, showing an excellent agreement once E d is renormalized by a constant Haldane shift. For U low-energy peak in the spectral density of the dot.Fil: Hamad, Ignacio Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; ArgentinaFil: Gazza, Claudio Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; ArgentinaFil: Andrade Hoyos, Jhon Alejandro. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Aligia, Armando Ángel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Cornaglia de la Cruz, Pablo Sebastian. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Roura Bas, Pablo Gines. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

Diseño de un controlador PID difuso para la variable caudal, de la plataforma de entrenamiento para control de procesos continuos existente en la UPS, Sede Quito - Campus Sur

Through this technical project wants to help students and teachers the race of Electronic Engineering of the Salesian University, of Quito - South Campus to extend the acquired knowledge regarding the use of current industrial controls and sound management that should be used in industries where their processes work through complex industrial instruments which need better calibration and better maintenance to extend its life equipment and that the process does not stop in activity. A FUZZY PID control (Proportional-Integrative-Derivative) for the process flow, Platform Training Control Continuous Process is created, taking into account all the lessons taught by teachers of the career of Electronic Engineering, during the course of student life at the Polytechnic Salesian University of Quito-South Campus. The performance index of the integral absolute error (IAE) is used to compare the FUZZY PID controller for flow variable with a conventional PID controller for flow variable, also using the Wilcoxon test determined which of these two drivers better have energy efficiency, plus a technical manual is made for FUZZY PID control practices applied to the flow control variable.A través de este proyecto técnico se desea ayudar a los estudiantes y profesores de la Carrera de Ingeniería Electrónica de la Universidad Politécnica Salesiana, Sede Quito-Campus Sur a ampliar los conocimientos adquiridos respecto al uso de controles industriales actuales y al manejo adecuado que se debe tener de equipos usados en las industrias donde sus procesos funcionan mediante instrumentos industriales complejos los cuales necesitan una mejor calibración y un mejor mantenimiento para ampliar su vida útil y que no se detenga el proceso en actividad. Se crea un control PID (Proporcional-Integrador-Derivativo) difuso para el proceso de caudal, de la Plataforma de Entrenamiento para Control de Procesos Continuos, tomando en cuenta todas las enseñanzas impartidas por los docentes de la carrera de Ingeniería Electrónica, durante el transcurso de la vida estudiantil en la Universidad Politécnica Salesiana Sede Quito-Campus Sur. Se utiliza el índice de desempeño de la integral del error absoluto (IAE) para comparar el controlador PID difuso para la variable caudal con un controlador PID convencional para la variable caudal, además usando el test de Wilcoxon se determina cuál de estos dos controladores tiene mejor eficiencia de energía, además se efectúa un manual técnico para prácticas con control PID difuso aplicado al control de la variable caudal

Características sociodemográficas y probabilidades de inclusión laboral de personas con discapacidad en Chile. Implicancias para las políticas sociales críticas

In Chile, labor inclusion for people in the situation of disability is low. By using the Second National Survey of Disability in Chile and running a logistic regression model (N=2,618), this study explores how sex, education, age, and level of functional dependency are associated with the probability of people in the situation of disability of having work. Findings suggest that being a woman with a disability or being older reduces the probability of having work. Besides, having more years of education increases the probability of it. Implications for critical social policies are also discussed

Stress corrosion cracking and fracture toughness variation of high strength steels.

The stress corrosion cracking process is at this moment an unknown mechanism of deterioration. It is a process that implies the joint action of the media, the presence of corrosion or a surface defect and of stress in the metal. Prestressing tendons can suffer SCC jointly with hydrogen embrittlement which dramatically changes not only the type of fracture (from ductile to brittle) but also the kinetics of the process leading to unexpected collapses. The metal should be resistant to this type of process which can be characterized by its toughness and therefore by its damage tolerance. This research shows that the Fracture Toughness change when the steel corrodes, questioning the idea that is an intrinsic characteristic of the material. The reduction in the fracture toughness of steel wires when they are in contact to aggressive media involve that the material fractures with a lower crack depth for the same stress level. That means that the material becomes less damage tolerant, which implies that it is necessary to detect defects of smaller size, as for example, small notch, pits or superficial cracks. In the paper some results of the percentage of decrease of the toughness of prestressing wires suffering corrosion are presented

High Strength Steels Fracture Toughness Variation by the Media

The stress corrosion cracking process is at this moment an unknown mechanism of deterioration. It is a process that implies the joint action of the media, the presence of corrosion or a surface defect and of stress in the metal. Prestressing tendons can suffer SCC jointly with hydrogen embrittlement which dramatically changes not only the type of fracture (from ductile to brittle) but also the kinetics of the process leading to unexpected collapses. The metal should be resistant to this type of process which can be characterized by its toughness and therefore by its damage tolerance. This research shows that the Fracture Toughness change when the steel corrodes, questioning the idea that is an intrinsic characteristic of the material. The reduction in the fracture toughness of steel wires when they are in contact to aggressive media involve that the material fractures with a lower crack depth for the same stress level. That means that the material becomes less damage tolerant, which implies that it is necessary to detect defects of smaller size, as for example, small notch, pits or superficial cracks. In the paper some results of the percentage of decrease of the toughness of prestressing wires suffering corrosion are presented

Investigation of chemical modifiers for the determination of cadmium and chromium in fish oil and lipoid matrices using HR-CS GF AAS and a simple ‘dilute-and-shoot’ approach

The authors are grateful to the Conselho Nacional de Desenvolvimento Científico and Tecnológico (CNPq), and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) for financial support and scholarships. The present research was mostly financed through Project no. CNPq 406877/2013-0. The authors are also grateful to Analytik Jena for financial support and the donation of the contrAA 600.Peer reviewedPostprin

Miradas: memorias de un sobreviviente

To understand suicide from an intimate perspective, this artistic research begins by understanding the transcendence of a gaze, contrasting it in different voices: from oneself, from the other. Later, the investigation moves to the understanding of the different gazes that are found in humanity. The result is a photographic installation that seeks to intercept the viewer with the restlessness of the gazes that go unnoticed, ignored and that are the result of the viewer's conscious indifference...Para entender el suicidio desde una perspectiva íntima, esta investigación artística comienza por entender la trascendencia de una mirada, contraponiéndola en distintas voces: desde uno mismo, desde el otro. Posteriormente, la investigación se traslada a la comprensión de las distintas miradas que se encuentran en la humanidad. Resultando así en una instalación fotográfica que busca interceptar al espectador con la inquietud de las miradas que pasan desapercibidas, ignoradas y que son fruto de la indiferencia consciente del mismo..