Centros de documentación de televisiones en Catalunya. Estudio de BTV, RTVE, TVC y 8tv.

Resumen: Se realiza un estudio comparativo de los departamentos de documentación de las cuatro principales empresas televisivas con presencia en Catalunya: BTV, RTVE, TVC y 8tv. Se estudian los métodos y sistemas de trabajo, considerando los siguientes aspectos: software; selección; análisis documental; digitalización y nuevos flujos de trabajo; usuarios; productos documentales; futuro profesional. Es un estudio cualitativo basado en entrevistas a Tomeu Mas (BTV), Dolors Gonzalo (RTVE), Àngels Serres (TVC) y Caterina Riera (8tv). Abstract: A comparative study of the documentation departments of the four major television companies in Catalonia was performed: BTV, RTVE, TVC and 8tv. Methods and work systems are studied, considering the following aspects: software; selection; document analysis; digitization and new workflows; users; documentary products; professional future. It is a qualitative study based on interviews with Tomeu Mas (BTV), Dolors Gonzalo (RTVE), Àngels Serres (TVC) and Caterina Riera (8TV)

Consequence analysis of an explosion by simple models: Texas refinery gasoline explosion case

Accidents in petrochemical plants and oil refineries are quite destructive, due to the high reactivity of chemicals involved in them. An accident that occurred in the Texas City refinery, on March 23rd 2005, consisting on a vapour cloud explosion (VCE) that followed a gasoline release and caused 15 deaths, has been studied in terms of people vulnerability to overpressure and thermal radiation. With this aim, simple models (TNT, TNO Multi-Energy, BST) have been used in order to evaluate the effects of the explosion.Moreover, a thermal radiation model was used to estimate the damage caused by the heat released as consequence of the explosion. Finally, the Probit methodology was used to evaluate the vulnerability of persons. Although differences between the data derived from each of them existed, they all reproduced actual damages with a reasonable accuracy. The results reached let us say that the TNO and BST models predict with a reasonable accuracy the effects of the explosion that occurred. Furthermore, the use of simplified empirical models can be used for risk assessment

Analysis of the influence of under sleeper pads on the railway vehicle/track dynamic interaction in transition zones

[EN] Sharp changes in the vertical stiffness levels of a track can increase train and infrastructure deterioration to the point where there is a serious risk of a derailment. Major overloading and unloading forces are created between the different track and vehicle components. This phenomenon has grown in importance as the operational speeds of trains have increased with the expansion of high-speed lines. In order to solve this problem a method has to be found to smooth the changes in vertical stiffness levels along the track. In the present paper, the combination of transition regions and under- sleeper pads (USPs) has been studied. The research has been performed by means of a dynamic vehicle-track interaction model created by synthesizing a series of sub-models of individual effects. The analysed variables allow various track configurations, train travelling speeds and the stiffness of the USPs to be investigated. The obtained results show that combining transition zones with USPs pads allows more homogeneous vertical stiffness levels to be achieved along the tracks which results in improved dynamic behaviour of the vehicle-track system. © IMechE 2011.This work was supported by Ineco-Tifsa.Insa Franco, R.; Salvador Zuriaga, P.; Inarejos Mesa, J.; Roda Buch, A. (2012). Analysis of the influence of under sleeper pads on the railway vehicle/track dynamic interaction in transition zones. Proceedings of the Institution of Mechanical Engineers Part F Journal of Rail and Rapid Transit. 226(4):409-420. doi:10.1177/0954409711430174S409420226

Analysis of the performance of under-sleeper pads in highspeed line transition zones

[EN] In many high-speed railway lines, the zones between embankments and structures may present some discontinuities, in terms of track geometry and track stiffness, which may create discomfort for passengers, induce deterioration of track and vehicle materials and even raise the risk of derailment to dangerous levels. In the attempt to attenuate the consequences of such problems, some solutions pointing at progressively changing the vertical stiffness in the railway track have been tested, such as transition zones or pads placed either between the rails and the sleepers or under the sleepers. The contribution of under-sleeper pads in transition regions and their effect on the railway infrastructure is specifically analysed in the present paper. The results obtained are of interest since they provide useful information for railway managers on infrastructure design and justify the need to implement such transition ones.Insa Franco, R.; Salvador Zuriaga, P.; Inarejos Mesa, J.; Medina González, L. (2014). Analysis of the performance of under-sleeper pads in highspeed line transition zones. Proceedings of the Institution of Civil Engineers - Transport. 167(2):63-77. doi:10.1680/tran.11.00033S6377167

Centros de documentación de televisiones en Catalunya. Estudio de BTV, RTVE, TVC y 8tv

A comparative study of the documentation departments of the four major television companies in Catalonia was performed: BTV, RTVE, TVC and 8tv. Methods and work systems are studied, considering the following aspects: software; selection; document analysis; digitization and new workflows; users; documentary products; professional future. It is a qualitative study based on interviews with Tomeu Mas (BTV), Dolors Gonzalo (RTVE), Àngels Serres (TVC) and Caterina Riera (8TV)

Centros de documentación de televisiones en Catalunya. Estudio de BTV, RTVE, TVC y 8tv.

Resumen: Se realiza un estudio comparativo de los departamentos de documentación de las cuatro principales empresas televisivas con presencia en Catalunya: BTV, RTVE, TVC y 8tv. Se estudian los métodos y sistemas de trabajo, considerando los siguientes aspectos: software; selección; análisis documental; digitalización y nuevos flujos de trabajo; usuarios; productos documentales; futuro profesional. Es un estudio cualitativo basado en entrevistas a Tomeu Mas (BTV), Dolors Gonzalo (RTVE), Àngels Serres (TVC) y Caterina Riera (8tv). Abstract: A comparative study of the documentation departments of the four major television companies in Catalonia was performed: BTV, RTVE, TVC and 8tv. Methods and work systems are studied, considering the following aspects: software; selection; document analysis; digitization and new workflows; users; documentary products; professional future. It is a qualitative study based on interviews with Tomeu Mas (BTV), Dolors Gonzalo (RTVE), Àngels Serres (TVC) and Caterina Riera (8TV)

On the filtering effects of the chord offset method for monitoring track geometry

In the recently published paper by Real et al. entitled ¿Determination of Rail Vertical Profile through Inertial Methods¿ the authors used a particular method to establish the correspondence between the vertical accelerations registered in the axlebox of a wheel and the rail vertical profile which caused them as a way of monitoring the track conditions. This work does not consider the filtering effects due to the asymmetric chord that introduces the Infrastructure Monitoring Vehicle VAI used in the tests. As a result of this, it is suggested that such method may produce some errors in the measurements at certain frequencies. The present work shows how the technique can be amended in order to maintain its quality.This research has been self-funded by the Universidad Politecnica de Valencia.Insa Franco, R.; Inarejos Mesa, J.; Salvador Zuriaga, P.; Baeza González, LM. (2012). On the filtering effects of the chord offset method for monitoring track geometry. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART F-JOURNAL OF RA. 226(6):650-654. doi:10.1177/0954409712447481S6506542266Grassie, S. L. (1996). Measurement of railhead longitudinal profiles: a comparison of different techniques. Wear, 191(1-2), 245-251. doi:10.1016/0043-1648(95)06732-9Hilgers, J. W., & Bertram, B. S. (2004). Comparing different types of approximators for choosing the parameters in the regularization of ill-posed problems. Computers & Mathematics with Applications, 48(10-11), 1779-1790. doi:10.1016/j.camwa.2003.02.015Budd, C. J., Freitag, M. A., & Nichols, N. K. (2011). Regularization techniques for ill-posed inverse problems in data assimilation. Computers & Fluids, 46(1), 168-173. doi:10.1016/j.compfluid.2010.10.00

Insuficiencia cardiaca la epidemia en el medio rural: características y manejo en un centro de salud rural de Albacete

Introduction and objective. Proper management in chronic heart failure (CHF) patients reduces their  morbidity as well as the mortality and therefore the number of hospital readmissions. Numerous studies  report about their management in the hospital setting, while in primary care they are scarce. The objective is  to evaluate the application of European Society of Cardiology clinical guidelines in the chronic heart failure  patients in primary care setting. Methods. Observational descriptive design focusing on management, use of medications and indication- prescription. Population and sample: Primary care teams in the area of Casas Ibañez (Albacete). The study  population consists of patients with chronic heart failure diagnosis classes from II to V according to the New  York Heart Association (NYHA). Data were collected from a registry of 224 patients with chronic heart failure  belonging to 10 primary care physicians. All patients diagnosed with Chronic Heart Failure (223 patients)  belonging to the rural strata were selected. Main measurements: adherence to the drugs recommended in  the clinical guideline is evaluated using 2 indicators, one global and the other for drugs with a higher degree  of evidence (A1: angiotensin converting enzyme inhibitors / angiotensin II receptor blockers [ACE Inhibitors/  ARBs], β-blockers [BB] and spironolactone). Results. 223 patients are studied, with an average age of 78.4 years, of which 53.1% are women. Arterial  hipertension (AHT) and cardiac ischemia cause 64.7%. The average comorbidity, excluding CHF, was 2.9.  40.4% were class III-IV of the NYHA. The Global Adherence Index (diuretics, ACE Inhibitors / ARBs, β-blockers,  spironolactone, digoxin and oral anticoagulants) and the Adherence to Evidence A1 (ACE Inhibitors / ARBs, β- blockers and spironolactone) were 55.2 and of 44.6% respectively. Only 12.9% of patients showed perfect adherence to medications with the higher degree of evidence while 39.5% had low adherence. Having less  than 70 years, the history of ischemic heart diseases, AHT and hospital admissions are variables associated  with better adhesion. Conclusion. There is an underutilization of medications recommended by the clinical guideline for congestive  heart failure management, especially those with better evidence to reduce morbidity and mortality.  Introducción y objetivo. El adecuado manejo en los pacientes con insuficiencia cardíaca crónica (ICC)  reduce su morbimortalidad y por tanto el número de reingresos hospitalarios. Numerosos estudios informan sobre su manejo en el ámbito hospitalario, mientras que en atención primaria son escasos. El objetivo es  evaluar el grado de adecuación a la guía clínica de la Sociedad Europea de Cardiología en la ICC en los  pacientes de atención primaria.  Métodos. Diseño observacional descriptivo, de manejo, de utilización de medicamentos, tipo indicación- prescripción. Población y muestra: equipos de atención primaria de la zona básica de Casas Ibañez  (Albacete). La población de estudio está formada por los pacientes con un diagnóstico de insuficiencia  cardíaca crónica en grado II-IV de la New York Heart Association (NYHA), de un registro de 224 con  insuficiencia cardíaca crónica, pertenecientes a 10 médicos de atención primaria. Se seleccionaron todos los  pacientes diagnosticados de Insuficiencia Cardiaca Crónica 223 enfermos con afijación al estratos rural.  Mediciones principales: se evalúa la adherencia a los fármacos recomendados en la guía clínica mediante 2  indicadores, uno global y otro para fármacos con mayor grado de evidencia (A1: inhibidores de la enzima conversora de angiotensina/antagonistas de los receptores de angiotensina II [IECA/ARA-II], β-bloqueantes  [BB] y espironolactona). Resultados. Se estudian 223 enfermos, con una edad promedio de 78,4 años, de los cuales son mujeres el  53,1%. La hipertensión arterial (HTA) y la isquemia cardíaca causan el 64,7%. La comorbilidad promedio,  excluyendo la ICC, fue de 2,9. El 40,4% están en grado III-IV de la NYHA. El Índice de Adherencia Global  (diuréticos, IECA/ARA-II, β-bloqueantes, espironolactona, digoxina y anticoagulantes orales) y el de  Adherencia a la Evidencia A1 (IECA/ARA-II, BB y espironolactona) fueron del 55,2 y del 44,6%,  respectivamente. El 39,5% tiene una baja adherencia, solo el 12,9% de los pacientes exhiben una perfecta  adherencia a los medicamentos con el mejor grado de evidencia, mientras que tener menos de 70 años, los antecedentes de isquemia, HTA e ingreso hospitalario son variables asociadas a mejor adherencia. Conclusión. Existe una infrautilización de medicamentos recomendados por la guía clínica para la  insuficiencia cardíaca, sobre todo de aquellos con mejores evidencias para reducir la morbimortalidad.

Infraestructura y sostenibilidad en transporte

La Universidad de Medellín y la Secretaría de Infraestructura Física de la Gobernación de Antioquia presentan el libro INFRAESTRUCTURA Y SOSTENIBILIDAD en el cual expertos nacionales e internacionales exponen avances de sus estudios y hacen propuestas para la gestión, desarrollo y construcción de la infraestructura de transporte