A Relational Model for the Possibilistic Valid-time Approach

In real world, it is very common that some objects or concepts have properties with a time-variant or timerelated nature. Modelling this kind of objects or concepts in a (relational) database schema is possible, but time-variant and time-related attributes have an impact on the consistency of the entire database and must be appropriately managed. Therefore, temporal database models have been proposed to deal with this problem in the literature. Time can be affected by imprecision, vagueness and / or uncertainty, since existing time measuring devices are inherently imperfect. Additionally, human beings manage time using temporal indications and temporal notions, which may also be imprecise. However, the imperfection in human-used temporal indications is supported by human interpretation, whereas information systems need appropriate support in order to accomplish this task. Several proposals for dealing with such imperfections when modelling temporal data exist. Some of these proposals transform the temporal data into a compact representation but there is not a formal model for managing and handling uncertainty regarding temporal information. In this work we present a novel model to deal with imprecision in valid-time databases together with the definition and implementation of the data manipulation language, DML.Junta de Andalucia P07-TIC-03175 BES-2009-013805 TIN2008-0206

An Overview of Alternative Rule Evaluation Criteria and Their Use in Separate-and-Conquer Classifiers

Separate-and-conquer classifiers strongly depend on the criteria used to choose which rules will be included in the classification model. When association rules are employed to build such classifiers (as in ART [3]), rule evaluation can be performed attending to different criteria (other than the traditional confidence measure used in association rule mining). In this paper, we analyze the desirable properties of such alternative criteria and their effect in building rule-based classifiers using a separate-and-conquer strategy

Aplicación de las TICs en el Ámbito de la Construcción

La industria de la construcción posee una serie de características propias que la hacen muy diferente de otros sectores industriales; entre ellas destaca la gran cantidad de agentes que intervienen en el proceso constructivo y la cantidad de documentación que se genera y necesita desde la fase de diseño hasta la terminación del proyecto. La complejidad de los proyectos conlleva que cada uno de ellos sea diferente, único y singular, lo que hace más difícil la toma de decisiones y genera claramente la necesidad de disponer de sistemas que aporten la información necesaria a los decisores en cada momento. En este sentido, las TICs ofrecen una herramienta inmejorable.Hoy en día no basta con utilizar técnicas efectivas de almacenamiento y recuperación de datos, sino que también es necesario desarrollar técnicas que nos permitan explorar la “mina de oro” que suponen los datos operacionales recolectados en relación con la información que pueden aportar sobre el funcionamiento del negocio que los genera. En este trabajo, se presenta la arquitectura de un sistema de información integrado de gestión de la información para el sector de la construcción que contempla tanto la faceta operacional, para dar soporte al funcionamiento diario de los agentes involucrados en el proceso, como una faceta analítica que incorpora un valor añadido a la hora de afrontar la toma de decisiones estratégicas durante el desarrollo del proceso

Percepción del estrés en los estudiantes de Enfermería ante sus prácticas clínicas

Objective: This research aims to establish what the Nursing students’ main stress sources are during their practice period, according to their gender, grade and age. Methodology. It is a descriptive transversal study. The sample was composed by 45 Nursing students, 30 women and 15 men, at the University of Murcia in 2010/2011. The information gathering tool was KEZKAK questionnaire. Results. The ignorance facing a determined clinical situation and the risk of damaging the patient are the Nursing students’ two main stress sources. Men often suffer from a bigger stress than women; nevertheless, as well as the age increases and the students pass grades, the stress level is smaller. Conclusions. Nursing students’ stress determines their formation within their clinical practices period. Thus, it is necessary that the theoretical learning that supports these practices considers theses needs that own Nursing students require.OBJETIVO. Esta investigación pretende conocer cuáles son las principales fuentes de estrés durante el periodo de prácticas de los estudiantes de Enfermería de la Universidad de Murcia en función de su sexo, curso y edad. METODOLOGÍA. Se trata de un estudio transversal de corte descriptiva. La muestra estuvo compuesta por un total de 45 alumnos, 30 mujeres y 15 hombres, de Enfermería de la Universidad de Murcia del curso académico 2010/2011. El instrumento de recogida de la información fue cuestionario KEKZAK. RESULTADOS. El desconocimiento ante una determinada situación clínica y el riesgo de dañar al paciente son las dos principales fuentes estresoras para los estudiantes de enfermería. Los hombres suelen sufrir un mayor estrés que sus compañeras; no obstante, a medida que aumenta la edad y se avanza de curso el grado de estrés es cada vez menor. CONCLUSIONES. El estrés de los estudiantes de enfermería marca su formación durante el período de prácticas clínicas. Por tanto, se hace necesario que el aprendizaje teórico que sustenta a las prácticas atienda a estas necesidades que los propios estudiantes de enfermería demandan

Arte infantil y educación artística

Sin resume

Arte infantil y educación artística

Sin resume

The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment

The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since July 2014. This paper describes the second data release from this phase, and the fourteenth from SDSS overall (making this, Data Release Fourteen or DR14). This release makes public data taken by SDSS-IV in its first two years of operation (July 2014-2016). Like all previous SDSS releases, DR14 is cumulative, including the most recent reductions and calibrations of all data taken by SDSS since the first phase began operations in 2000. New in DR14 is the first public release of data from the extended Baryon Oscillation Spectroscopic Survey (eBOSS); the first data from the second phase of the Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE-2), including stellar parameter estimates from an innovative data driven machine learning algorithm known as "The Cannon"; and almost twice as many data cubes from the Mapping Nearby Galaxies at APO (MaNGA) survey as were in the previous release (N = 2812 in total). This paper describes the location and format of the publicly available data from SDSS-IV surveys. We provide references to the important technical papers describing how these data have been taken (both targeting and observation details) and processed for scientific use. The SDSS website (www.sdss.org) has been updated for this release, and provides links to data downloads, as well as tutorials and examples of data use. SDSS-IV is planning to continue to collect astronomical data until 2020, and will be followed by SDSS-V.Comment: SDSS-IV collaboration alphabetical author data release paper. DR14 happened on 31st July 2017. 19 pages, 5 figures. Accepted by ApJS on 28th Nov 2017 (this is the "post-print" and "post-proofs" version; minor corrections only from v1, and most of errors found in proofs corrected

El proceso penal del siglo XXI, Quo vadis iustitia?

Actas de la Jornada "EL PROCESO PENAL DEL SIGLO XXI: QUO VADIS IUSTITIA?", celebrada en la Facultad de Derecho de Jerez de la Frontera, de la Universidad de Cádiz, el 24 de Abril de 2015.Quo vadis iustitia? La pregunta persigue que tanta reforma como se persigue se detenga un momento para responder y, con ello, para pensar sobre el modelo de justicia que se está diseñando. Ya han sido muchas las voces que han hablado de la legislación “galopante” o “motorizada”, o que han usado variados calificativos para referirse al frenesí en la productividad de nuestras cámaras legislativas. Si esto es algo que puede llegar a provocar inseguridad jurídica, debemos pensar que, cuando de lo que se trata es de las normas que afectan a la justicia (orgánicas y procesales) lo que se puede llegar a provocar es una alteración en el equilibrio de los poderes del Estado. No se puede dejar de lado que el funcionamiento de la justicia tiene que ver con uno de los poderes del Estado, el cual, precisamente, debe constituir el fiel que refleje el equilibrio entre los demás, aunque Montesquieu ya no esté muy de moda. La jornada s centra en algunos aspectos de la reforma del proceso penal.Área de Derecho Procesal, Facultad de Derecho Universidad de Cádiz Casa de Iberoamérica (Ayunatmiento de Cádiz) Gestiona: FUECA Proyecto Investigación MINECO DER 2011-26954Documento PDF con 232 páginas

Risk of Cancer in Cases of Suspected Lynch Syndrome Without Germline Mutation

Background & Aims: Colorectal cancers (CRCs) with microsatellite instability (MSI) and a mismatch repair (MMR) immunohistochemical deficit without hypermethylation of the MLH1 promoter are likely to be caused by Lynch syndrome. Some patients with these cancers have not been found to have pathogenic germline mutations and are considered to have Lynch-like syndrome (LLS). The aim of this study was to determine the risk of cancer in families of patients with LLS. Methods: We studied a population-based cohort of 1705 consecutive patients, performing MSI tests and immunohistochemical analyses of MMR proteins. Patients were diagnosed with Lynch syndrome when they were found to have pathogenic germline mutations. Patients with MSI and loss of MSH2 and/or MSH6 expression, isolated loss of PMS2 or loss of MLH1 without MLH1 promoter hypermethylation, and no pathogenic mutation were considered to have LLS. The clinical characteristics of patients and the age- and sex-adjusted standardized incidence ratios (SIRs) of cancer in families were compared between groups. Results: The incidence of CRC was significantly lower in families of patients with LLS than in families with confirmed cases of Lynch syndrome (SIR for Lynch syndrome, 6.04; 95% confidence interval [CI], 3.58–9.54; SIR for LLS, 2.12; 95% CI, 1.16–3.56; P < .001). However, the incidence of CRC was higher in families of patients with LLS than in families with sporadic CRC (SIR for sporadic CRC, 0.48; 95% CI, 0.27–0.79; P < .001). Conclusions: The risk of cancer in families with LLS is lower that of families with Lynch syndrome but higher than that of families with sporadic CRC. These results confirm the need for special screening and surveillance strategies for these patients and their relatives.This work was supported by grants from Instituto de Salud Carlos III (PI-080726, INT-09/208, and PI11/026030), the Fondo de Investigación Sanitaria/FEDER (PS09/02368, 10/00384, 10/00918, 11/00219, and 11/00681), Fundació Olga Torres (CRP) and FP7 CHIBCHA Consortium (SCB and ACar), the Ministerio de Economía y Competitividad (SAF2010-19273), and Agència de Gestió d’Ajuts Universitaris i de Recerca (2009 SGR 849). SCB is supported by a contract from the Fondo de Investigación Sanitaria (CP03-0070). CIBERER and CIBERehd are funded by the Instituto de Salud Carlos III