ITERL: A Wireless Adaptive System for Efficient Road Lighting

This work presents the development and construction of an adaptive street lighting system that improves safety at intersections, which is the result of applying low-power Internet of Things (IoT) techniques to intelligent transportation systems. A set of wireless sensor nodes using the Institute of Electrical and Electronics Engineers (IEEE) 802.15.4 standard with additional internet protocol (IP) connectivity measures both ambient conditions and vehicle transit. These measurements are sent to a coordinator node that collects and passes them to a local controller, which then makes decisions leading to the streetlight being turned on and its illumination level controlled. Streetlights are autonomous, powered by photovoltaic energy, and wirelessly connected, achieving a high degree of energy efficiency. Relevant data are also sent to the highway conservation center, allowing it to maintain up-to-date information for the system, enabling preventive maintenance.Consejería de Fomento y Vivienda Junta de Andalucía G-GI3002 / IDIOFondo Europeo de Desarrollo Regional G-GI3002 / IDI

Elementos para la construcción de un instrumento que permita medir la intención empresarial en estudiantes universitarios de último semestre

El objetivo de este artículo es construir un instrumento que permita identificar factores que influyen en la intención de crear empresas, en los estudiantes universitarios de último semestre, de carreras profesionales presenciales del departamento del Quindío (Colombia), utilizando la Teoría del Comportamiento Planeado de Ajzen. La metodología utilizada consiste en diseñar una encuesta inicial con base en la revisión de la literatura existente, que posteriormente se valida mediante las opiniones de 14 expertos y se priorizan las preguntas por parte de 51 “estudiantes jueces”, para seleccionar, por el método de los cuartiles, aquellas que discriminan. El resultado es la encuesta depurada que incluye ítems sobre aspectos personales y familiares, Normas sociales, Imagen y valores, Creencias, aspectos que motivan y obstaculizan la creación de empresas, y preguntas sobre recursos. Los resultados de la aplicación de esta encuesta, hacen parte del proyecto de investigación: “Factores que influyen en la intención de creación de empresas en los estudiantes universitarios del departamento del Quindío (Colombia)”

Magnetómetro para medida de campos electromagnéticos débiles en la banda ELF

Número de publicación: ES2557702 A1 (27.01.2016) Número de Solicitud: Consulta de Expedientes OEPM (C.E.O.) P201400462 (28.05.2014)La invención comprende un sistema para la medición de campos electromagnéticos débiles, en la banda de frecuencias comprendida entre 1 a 100 Hz, donde se localizan señales derivadas de la resonancia natural que ocurre entre la tierra y la ionosfera, las resonancias de Schumann. El sistema está compuesto por un núcleo de material ferromagnético (1) y un conjunto de bobinas separadas entre sí (2), conectadas mediante cables unifilares (8). Un cable de par trenzado (3) conecta el sensor a un sistema electrónico de medida (4) compuesto por un amplificador diferencial (5) al que se acoplan cada par trenzado, en una bifurcación coaxial con las mallas comunes (20), (21) mediante conectores coaxiales (22), (23) y con salida a un convertidor analógico digital (6). La geometría, estructura y materiales del sistema, le confieren sus propiedades de sensibilidad y ancho de banda.Universidad de Almerí

Bagging of Credal Decision Trees for Imprecise Classification

The Credal Decision Trees (CDT) have been adapted for Imprecise Classification (ICDT). However, no ensembles of imprecise classifiers have been proposed so far. The reason might be that it is not a trivial question to combine the predictions made by multiple imprecise classifier. In fact, if the combination method used is not appropriate, the ensemble method could even worse the performance of one single classifier. On the other hand, the Bagging scheme has shown to provide satisfactory results in precise classification, specially when it is used with CDTs, which are known to be very weak and unstable classifiers. For these reasons, in this research, it is proposed a new Bagging scheme with ICDTs. It is presented a new technique for combining predictions made by imprecise classifiers that tries to maximize the precision of the bagging classifier. If the procedure for such a combination is too conservative it is easy to obtain few information and worse the results of a single classifier. Our proposal considers only the states with the minimum level of non-dominance. An exhaustive experimentation carried out in this work has shown that the Bagging of ICDTs, with our proposed combination technique, performs clearly better than a single ICDT.This work has been supported by the Spanish “Ministerio de Economía y Competitividad” and by “Fondo Europeo de Desarrollo Regional” (FEDER) under Project TEC2015-69496-R

Generación de talento, empresas de base tecnológica e internacionalización: un análisis por comunidades autónomas

Las empresas de base tecnológica son consideradas de gran importancia para los territorios en los que se ubican al ser motores del desarrollo y crecimiento económico, y a la capacidad de inversión e innovación que pueden generar. Así, considerando como área de estudio las diferentes comunidades autónomas españolas, el presente trabajo persigue el análisis del ecosistema emprendedor en el que estas empresas se desarrollan, al contar estos entornos con capacidad para generar y crear talento y, por ende, impulsar estrategias de alto crecimiento

A decision support tool for credit domains: Bayesian network with a variable selector based on imprecise probabilities

A Bayesian Network (BN) is a graphical structure, with associated conditional probability tables. This structure allows us to obtain different knowledge than the one obtained from standard classifiers. With a BN, representing a dataset, we can calculate different probabilities about a set of features with respect to other ones. This inference can be more powerful than the one obtained from classifiers. A BN can be built from data and have analytical and diagnostic capabilities that make it very suitable for credit domains. Credit scoring and risk analysis are fundamental tasks for financial institutions with the aim to avoid important losses. In these tasks and other domains, an excessive number of features can convert a BN into a complex and difficult to interpret model, but a few number of features can represent a loss of information obtained from data. A new method based on imprecise probabilities is presented to select an informative subset of features. Using this new feature selection method, we can build a BN that has an excellent adjustment to the data, considering a reduced number of features. Via a set of experiments, it is shown that the adjustment is better than the ones obtained with no previous variable selection method and with a similar and successful variable subset selection method based on precise probabilities. Finally, a BN is built with two important characteristics: (i) it represents a better adjustment to the data; and (ii) it has a low complexity (better interpretability) due to the small number of important selected features. A practical example about inference on a BN to help on credit risk analysis is also presented.This work has been supported by the Spanish ‘‘Ministerio de Economía y Competitividad’’ and by ‘‘Fondo Europeo de Desarrollo Regional’’ (FEDER) under Project TEC2015-69496-R

CULTURA CIENTÍFICA para la Enseñanza Secundaria

Este trabajo ha sido realizado en el marco de un proyecto de investigación docente concedido y financiado por el Vicerrectorado de Estudiantes y Acción Social y el Vicerrectorado de Investigación de la Universidad Católica de Valencia San Vicente Mártir. Con este proyecto se pretende que los alumnos de Enseñanza Secundaria Obligatoria (E.S.O.) adquieran una cultura científica y conozcan que la ciencia, la sociedad y la tecnología no se pueden concebir aisladamente. Alumnos y profesores hemos trabajado desde una perspectiva multidisciplinar a través de diferentes asignaturas y Grados Universitarios. El científico Chargaff sugirió que había una correlación entre las bases nitrogenadas del DNA. La cantidad de Adenina y Timina (Agentes de Tráfico) y la cantidad de Guanina y Citosina (Guardia Civil) era la misma. Para confirmar que el DNA era la molécula que transmitía la herencia genética.Biotecnologí

CULTURA CIENTÍFICA para la Enseñanza Secundaria

Este trabajo ha sido realizado en el marco de un proyecto de investigación docente concedido y financiado por el Vicerrectorado de Estudiantes y Acción Social y el Vicerrectorado de Investigación de la Universidad Católica de Valencia San Vicente Mártir. Con este proyecto se pretende que los alumnos de Enseñanza Secundaria Obligatoria (E.S.O.) adquieran una cultura científica y conozcan que la ciencia, la sociedad y la tecnología no se pueden concebir aisladamente. Alumnos y profesores hemos trabajado desde una perspectiva multidisciplinar a través de diferentes asignaturas y Grados Universitarios. La Ingeniería Genética y la Biotecnología nos permiten la obtención de plantas y animales transgénicos, Los cuales constituyen buena parte de nuestra industria y alimentación. Pero todo esto no sería posible sin el conocimiento teórico de los genes, estudio al cual se entregó por completo la científica estadounidense Barbara McClintock.Biotecnologí

Internalizing and externalizing personality and subjective effects in a sample of adolescent cannabis users

Cannabis is the illicit substance most widely used by adolescents. Certain personality traits such as impulsivity and sensation seeking, and the subjective effects experienced after substance use (e.g. euphoria or relaxation) have been identified as some of the main etiological factors of consumption. This study aims to categorize a sample of adolescent cannabis users based on their most dominant personality traits (internalizing and externalizing profile). Then, to make a comparison of both profiles considering a set of variables related to consumption, clinical severity and subjective effects experienced. From a cross-sectional design, 173 adolescents (104 men and 69 women) aged 13 to 18 asking for treatment for cannabis use disorder in an Addictive Behavior Unit (UCAD) from the hospital were recruited. For the assessment, an ad hoc protocol was employed to register consumption, the Millon Adolescent Clinical Inventory (MACI) and the Addiction Research Center Inventory (ARCI) 49-item short form were also administered. Factor analysis suggested a two-profile solution: Introverted, Inhibited, Doleful, Dramatizing (-), Egotistic (-), Self-demeaning and Borderline tendency scales composed the internalizing profile, and Submissive (-), Unruly, Forceful, Conforming (-) and Oppositional scales composed the externalizing profile. The comparative analysis showed that the internalizing profile has higher levels of clinical severity and more subjective effects reported than the externalizing profile. These results suggest the need to design specific intervention strategies for each profile

Recommendations for the Clinical Approach to Immune Thrombocytopenia: Spanish ITP Working Group (GEPTI)

Glucocorticoids; Intravenous immunoglobulins; Primary immune thrombocytopeniaGlucocorticoides; Immunoglobulines intravenoses; Trombocitopènia immune primàriaGlucocorticoides; Inmunoglobulinas intravenosas; Trombocitopenia inmune primariaPrimary immune thrombocytopenia (ITP) is a complex autoimmune disease whose hallmark is a deregulation of cellular and humoral immunity leading to increased destruction and reduced production of platelets. The heterogeneity of presentation and clinical course hampers personalized approaches for diagnosis and management. In 2021, the Spanish ITP Group (GEPTI) of the Spanish Society of Hematology and Hemotherapy (SEHH) updated a consensus document that had been launched in 2011. The updated guidelines have been the reference for the diagnosis and management of primary ITP in Spain ever since. Nevertheless, the emergence of new tools and strategies makes it advisable to review them again. For this reason, we have updated the main recommendations appropriately. Our aim is to provide a practical tool to facilitate the integral management of all aspects of primary ITP management