Unsupervised Understanding of Location and Illumination Changes in Egocentric Videos

Wearable cameras stand out as one of the most promising devices for the upcoming years, and as a consequence, the demand of computer algorithms to automatically understand the videos recorded with them is increasing quickly. An automatic understanding of these videos is not an easy task, and its mobile nature implies important challenges to be faced, such as the changing light conditions and the unrestricted locations recorded. This paper proposes an unsupervised strategy based on global features and manifold learning to endow wearable cameras with contextual information regarding the light conditions and the location captured. Results show that non-linear manifold methods can capture contextual patterns from global features without compromising large computational resources. The proposed strategy is used, as an application case, as a switching mechanism to improve the hand-detection problem in egocentric videos.Comment: Submitted for publicatio

Líderes en escuelas portuguesas

La intención de nuestra investigación fue progresar en el conocimiento sobre los directores de las escuelas secundarias públicas del Estado en Portugal, a partir de la reconstitución de trayectos personales y profesionales, la caracterización de la manera de desempeñar sus funciones, la identificación de sus características de liderazgo, la valoración de los consi­guientes impactos organizacionales y la influencia que esta multiplicidad de factores ejer­ce en los resultados globales de los alumnos.La intenció de la nostra investigació va ser progressar en el coneixement sobre els directors de les escoles secundàries públiques de l'estat a Portugal, a partir de la reconstitució de trajectes personals i professionals, la caracterització de la manera d'exercir les seves funcions, la identificació de les seves característiques de lideratge, la valoració dels consegüents impactes organitzacionals i la influència que aquesta multiplicitat de factors exerceix en els resultats globals dels alumnes.The aim of this research was to go into the role of high schools headmasters in Portugal. Thus, the research has rebuilt their professional and personal trajectories, has characterized the role they play in their duties, has identified their leadership characteristics and has evaluated the organizational impacts resulting from these factors and the influence of this wide variety of factors upon students' outcomes

The midwife in sexual and reproductive health of women through life histories

Objetivo: Obtener y analizar información de las mujeres residentes en el municipio de Murcia en el año 2010 sobre conceptos en salud sexual y reproductiva para incorporarlos al conocimiento de la disciplina matrona. Para implementar cuidados efectivos en las mujeres murcianas, las matronas necesitan conocer desde el propio discurso de estas, cuales son sus necesidades, modos y sabores entorno a su salud sexual y reproductiva. Método: La investigación que se plantea es de corte descriptivo con un enfoque cualitativo y desde una mirada antropológica enfermera y desde paradigmas epistemológicos construccionistas. Se seleccionó una muestra de cinco mujeres residentes en el municipio de Murcia atendiendo a criterios de muestreo por máxima variedad. La parte central de nuestro trabajo de campo la conforman las historias de vida realizadas a las cinco mujeres obteniendo los resultados a través de un análisis inductivo y posterior categorización de sus discursos. Resultados: Del análisis del discurso se obtienen como relevantes las siguientes categorías: 1- Conceptos en salud sexual y reproductiva (Relaciones sexuales/Decisión de maternidad/Vivencia de partos/ Miedos en el embarazo y maternidad). 2- Influencia cultural en salud sexual y reproductiva (Maternidad. La madre sacrificada: exaltación de la idea de maternidad). Conclusiones: La complejización de la sociedad, hace que la profesión matrona dinamice sus fundamentos entorno al conocimiento cultural de su objeto receptor de cuidados en salud sexual y reproductiva. Las mujeres son las protagonistas necesarias; solo a través de sus miradas nos vincularemos las matronas a sus vidas.Objective: Obtain and analyze information from women living in the municipality of Murcia in 2010 on concepts in sexual and reproductive health to incorporate the knowledge of midwives. To implement effective care for women in Murcia, midwives need to know from speaking for themselves, what are their needs, ways and flavors around their sexual and reproductive health. Method: The research raised is descriptive with a qualitative approach from an anthropological-nurse perspective from constructionist epistemological paradigms. A sample of five women, living in the municipality of Murcia, were selected, according to criteria of maximum variety sampling. The central part of our fieldwork consist in life stories of five women made to get the results through an inductive analysis and subsequent categorization of his speeches. Results: From discourse analysis obtained the following categories as relevant: 1. Concepts in sexual and reproductive health (sex / Decision Maternity/ Experience of delivery / Fear of pregnancy and maternity) 2. Cultural influences on sexual and reproductive health (Maternity. The sacrificing mother: exaltation of maternity) Conclusions: The growing complexity of society, makes the midwife profession energizes its foundations around the cultural knowledge of the object receiving care in sexual and reproductive health. Women are the protagonists necessary; only through their eyes we will link midwives to their lives

La política de empleo de la unión europea

Nadie duda que la política social jugará un papel importante en el futuro de la Unión Europea, si la idea del mercado único prevalece sobre la Europa de los ciudadanos. En cualquier caso, el problema del empleo ha estado presente desde los origenes de la Comunidad Económica Europea pero como un problema menor. Actualmente, ha llegado a ser un factor importante en la formación de la política económica general. Este estudio muestra un análisis crítico de las políticas comunitarias de empleo. Se estudian tres períodos diferentes: 1) los antecedentes de las políticas de empleo en la Comunidad que terminaría con el Tratado de Maastricht, el cual establece como objetivo promover un mayor nivel de empleo; 2) un segundo período en el cual el empleo es una prioridad en la construcción de una Europa integrada: el Tratado de la Unión; 3) nuevas acciones y procesos comunitarios para el empleo posteriores al Tratado de Amsterdam.________________________________It is difficult to believe that social policies will play an important part in the future in Europe, if the idea of the Europe of the market prevails on the Europe of the citizens. Nevertheless, the employment problem was present since the beginning of the European Economic Community, although as a minor problem. At present, it has become an important factor in the definition of the general economic policy. This paper presents a critical analysis of the Employment Community Policies. Three different periods are presented: l) the old employment policy in the Community that ends with the Maastricht Treaty that establishes the objective of promoting a higher level of employment; 2) a second period in which employment is a priority in order to build an Integrated Europe: The Union Treaty; and 3) new Community actions and processes for employment following Amsterdam Treaty

Comparative Analysis of the Type III Secretion System Effector Repertoires of Pseudomonas savastanoi Pathovars Pathogenic on Woody Hosts

Comunicación de tipo pósterThe species Pseudomonas savastanoi, a member of the Pseudomonas syringae complex, includes four pathovars causing knots or excrescences in woody hosts: P. savastanoi pv. savastanoi (Psv), pv. fraxini (Psf), pv. nerii (Psn) and pv. retacarpa (Psr), comprising isolates from olive, ash, oleander and broom plants, respectively. Pathogenicity of P. savastanoi is dependent, among other factors, on the type III secretion system (T3SS) and its effector (T3E) repertoire. Furthermore, a putative role in the interaction with woody hosts has been suggested for several of these T3E. The recent availability of the genome sequences of several P. savastanoi strains isolated from different hosts has facilitated bioinformatics predictions of their T3SS genes and T3E pools, the study of their distribution in other strains of the P. syringae complex isolated from woody hosts and the functional analysis of several of these secreted proteins. As previously reported for Psv, Psn and Psf, here we show that pathogenicity of Psr ICMP16945, is also dependent on the T3SS. Psv strains NCPPB 3335, ICMP4352 and PseNe107 share a core set of at least 22 T3E, 18 of which are also encoded in Psn ICMP16943, Psf ICMP7711 and Psr ICMP16945. However, these three strains encode truncated versions of 1-2 of these 18 T3E and, Psr ICMP16945 contains three pathovarspecific T3E. Our results also show that several T3E, including HopAO1, are phylogenetically clustered across the P. syringae complex according to the woody/herbaceous nature of their host of isolation, suggesting host specialization of these effectors in this complex.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

Enhanced lanthanum-stabilized low crystallinity metal oxide electrocatalysts with superior activity for oxygen reactions

Oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are key electrochemical reactions for the development of rechargeable Zn-air batteries. However, due to the high cost of commercial noble metal-based catalysts and their limited bifunctionality, it is necessary the design of new electrocatalysts. In this study, stable electrocatalysts have been synthesized through a hydrothermal method and further low-temperature thermal treatment. The materials consist of La stabilized low crystallinity Mn and Co metal (hydro-)oxides. The electrocatalytic performance of these materials has been compared with counterparts calcined at higher temperatures. The findings demonstrate that materials synthesized at lower temperatures and with low crystallinity exhibit superior electrocatalytic activity for both ORR and OER. Moreover, the research highlights the favorable influence of the lanthanum cation, which enhances changes of surface morphology and oxidation states of other cations (Mn and Co). Additionally, the positive contribution of the carbon component to electrochemical activity and electrical conductivity has been elucidated. The best electrocatalyst was studied in a rechargeable Zn-air battery with a durability of up to 120 hours. They exhibited better stability and performance than the commercial Pt/C + RuO2 catalyst currently used.The authors would like to thank PID2019-105923RB-I00 and PID2022-137566OB-I00 projects funded by MCIN/AEI/10.13039/501100011033. M.G.R. thanks Ministerio de Universidades for the FPU20-01746 grant

Humedales en Los Haitises, República Dominicana

En los Haitises, República Dominicana, existen numerosos humedales en ambiente kárstico vinculados a las aguas subterráneas. El objetivo del trabajo es realizar una caracterización hidrogeológica de Los Haitises y presentar una experiencia participativa en la formulación del Plan Hidrológico. La metodología consistió en la síntesis de la información existente, medición de niveles en ríos, manantiales y pozos, muestreo para análisis hidroquímico e isotópico y talleres con actores sociales involucrados en la gestión. La composición química de las masas de agua es homogénea, el contenido isotópico en los manantiales es similar al agua subterránea, y menor que en ríos y pozos excavados someros, deduciéndose en éstos, un proceso de evaporación. Se identificaron objetivos y seleccionaron actuaciones priorizando los problemas según el grado de importancia y urgencia, lográndose un acercamiento a un Plan de Manejo sobre la base del conocimiento técnico - científico y la situación socioeconómica e institucional de Los Haitises.Seminario llevado a cabo en la ciudad de La Plata entre los días 17 y 20 de septiembre de 2013, organizado por el Grupo Argentino de la Asociación Internacional de Hidrogeólogos (AIH-GA) y la Universidad Nacional de La Plata