Visualizing Probabilistic Proof

The author revisits the Blue Bus Problem, a famous thought-experiment in law involving probabilistic proof, and presents simple Bayesian solutions to different versions of the blue bus problem. In addition, the author expresses his solutions in standard and visual formats, i.e. in terms of probabilities and natural frequencies

Quality of life, burden and emotion regulation difficulties in relatives of borderline personality disorder patients.

Treball Final de Grau en Psicologia. Codi: PS1048. Curs: 2018/2019Borderline Personality Disorder (BPD) is a mental disorder characterized by dominant patterns of emotional instability, in addition to presenting alterations of self-image, instability in interpersonal relationships, marked impulsiveness and suicidal behaviors (suicidal ideation and attempts) causing a great interference in the life of the individual. There are several factors involved in BPD, including the family. Thus, relatives play an important role in the onset and development of the disorder, while at the same time the diagnosis of BPD and the associated symptoms influence the status of relatives. Some studies show high levels of burden, difficulties in emotion regulation and a deterioration in the well-being of the relatives of patients with BPD. The objective of this work was to study the level of burden and difficulties in emotional regulation in a sample of 49 relatives of patients with BPD, as well as to determine their levels of quality of life. In addition, the possible relation among these variables was also studied. The Quality of Life Index (QLI), the Difficulties in Emotion Regulation Scale (DERS) and the Burden Assessment Scale (BAS) were used to carry out the study. Regarding the results, relatives showed burden scores above the average, moderate difficulties in emotion regulation and also a moderate level of quality of life. Moreover, a significant and negative correlation was obtained between burden and quality of life, and a significant and positive correlation was shown between the difficulties in emotion regulation and burden. These data provide evidence about the importance of taking into account families in the BPD intervention processes to improve the well-being of both patients and relatives.El Trastorno Límite de la Personalidad (TLP) es un trastorno mental caracterizado por patrones dominantes de inestabilidad emocional, además de presentar alteraciones de la auto-imagen, inestabilidad en las relaciones interpersonales, una marcada impulsividad y conductas suicidas (ideación e intentos suicidas) causando una gran interferencia en la vida del individuo. En el TLP intervienen varios factores, entre los cuales se encuentra la familia. Así, la familia juega un papel importante en la aparición y el desarrollo del trastorno, mientras que al mismo tiempo el diagnóstico de TLP y los síntomas asociados influyen en el estado de los familiares. Algunos estudios muestran niveles altos de carga, dificultades en la regulación emocional y un deterioro en el bienestar de los familiares de pacientes con TLP. El objetivo de este trabajo consistió en estudiar cuál era el nivel de carga y de dificultades en la regulación emocional en una muestra de 49 familiares de pacientes con TLP, así como determinar sus niveles de calidad de vida. Además, se estudió la posible relación entre estas variables. Para llevar a cabo el estudio se utilizaron las escalas de Quality of Life Index (QLI), Difficulties in Emotion Regulation Scale (DERS) y Burden Assessment Scale (BAS). Respecto a los resultados, se obtuvieron puntuaciones de carga por encima de la media, dificultades en regulación emocional moderadas y un nivel de calidad de vida también moderado. Por otra parte, se obtuvo una relación significativa y negativa entre la carga y la calidad de vida, y una relación significativa y positiva entre las dificultades en la regulación emocional y la carga. Estos datos aportan evidencias acerca de la importancia de tener en cuenta a las familias en los procesos de intervención del TLP para mejorar tanto el bienestar de los pacientes como el de sus familiares

Machine learning for early detection of traffic congestion using public transport traffic data

The purpose of this project is to provide better knowledge of how the bus travel times is affected by congestion and other problems in the urban traffic environment. The main source of data for this study is second-level measurements coming from all buses in the Linköping region showing the location of each vehicle.The main goal of this thesis is to propose, implement, test and optimize a machine learning algorithm based on data collected from regional buses from Sweden so that it is able to perform predictions on the future state of the urban traffic.El objetivo principal de este proyecto es proponer, implementar, probar y optimizar un algoritmo de aprendizaje automático basado en datos recopilados de autobuses regionales de Suecia para que poder realizar predicciones sobre el estado futuro del tráfico urbano.L'objectiu principal d'aquest projecte és proposar, implementar, provar i optimitzar un algoritme de machine learning basat en dades recollides a partir d'autobusos regionals de Suècia de manera per poder realitzar prediccions sobre l'estat futur del trànsit urbà

The importance of heritage on the overall perceived image of a place: Barcelona seen by its residents

Place branding literature generally defines heritage as a major attribute that composes place brands. Moreover, the concept of heritage is deeply connected to place identity, to the point that some authors describe it as its DNA. In this sense, the aim of this article is to test the importance of heritage on the overall perceived image of the city of Barcelona (Spain) by analyzing opinions and perceptions from its local residents. To do so, 300 citizens were surveyed from 10th December 2014 to 30th January 2015 by using a specialized questionnaire designed for studying overall place image perception. Results of the study showed that heritage was a highly valued attribute that clearly dominated above other key attributes in the minds of citizens. Finally, potential opportunities and advantages for Barcelona’s brand arising from those perceptions are discussed

Regulatory and Policy Implications of Emerging Technologies to Spectrum Management

This paper provides an overview of the policy implications of technological developments, and how these technologies can accommodate an increased level of market competition. It is based on the work carried out in the SPORT VIEWS (Spectrum Policies and Radio Technologies Viable In Emerging Wireless Societies) research project for the European Commission (FP6)spectrum, new radio technologies, UWB, SDR, cognitive radio, Telecommunications, regulation, Networks, Interconnection

Relativistic dissipative hydrodynamics with spontaneous symmetry breaking

In this paper we consider dissipative hydrodynamic equations for systems with continuous broken symmetries. We first present the case of superfluidity, in which the symmetry U(1) is broken and then generalize to the chiral symmetry $SU(2)_L \times SU(2)_R$. The corresponding new transport coefficients are introduced.Comment: 5 pages, RevTeX Minor changes, version accepted for publicatio

Protection against Spin Gap in 2-d Insulating Antiferromagnets with a Chern-Simons Term

We propose a novel mechanism for the protection against spin gapped states in doped antiferromagnets. It requires the presence of a Chern-Simons term that can be generated by a coupling between spin and an insulator. We first demonstrate that in the presence of this term the vortex loop excitations of the spin sector behave as anyons with fractional statistics. To generate such term, the fermions should have massive Dirac spectrum coupled to the emergent spin field of the spin sector. The Dirac spectrum can be realized by a planar spin configuration arising as the lowest-energy configuration of a square lattice antiferromagnet Hamiltonian involving a Dzyaloshinskii-Moriya interaction. The mass is provided by a combination of dimerization and staggered chemical potential. We finally show that for realistic parameters, anyonic vortex loop condensation will likely never occur and thus the spin gapped state is prevented. We also propose real magnetic materials for an experimental verification of our theory.Comment: To appear in Physical Review

Site-centered impurities in quantum spin chains

The magnetic behavior of antiferromagnetic spin 1/2 chains with site-centered impurities in a magnetic field is investigated. The effect of impurities is implemented by considering different situations of both diagonal and off-diagonal disorder. The resulting magnetization curves present a wide variety of plateaux, whose position strongly depends on the kind of disorder considered. The relevance of these results to experimental situations is also discussed.Comment: 6 pages, 6 figure