Análisis de inestabilidades en BWR con el código acoplado 3D RELAP5/PARCSv2.7. Aplicación al evento sucedido en Oskarshamn-2 en 1999

[EN] In this work, part of our works in the frame of the OECD/NEA Oskarshamn-2 (O2) BWR Stability Benchmark for Coupled Code Calculations and Uncertainty Analysis in Modelling are shown. The objective is to simulate the instability event registered in February 1999 at the Swedish NPP Oskarshamn-2 with the coupled code RELAP5/PARCSv2.7.[ES] En este estudio se presentan parte de los trabajos que se están llevando a cabo en el marco del benchmark ‘OECD/NEA Oskarshamn-2 (O2) BWR Stability Benchmark for Coupled Code Calculations and Uncertainty Analysis in Modelling’. El objetivo es simular el evento de inestabilidad registrado el 25 de Febrero de 1999 en la central sueca Oskarshamn-2 con el código acoplado RELAP5/PARCSv2.7.Garcia Fenoll, M.; Barrachina Celda, TM.; Miró Herrero, R.; Verdú Martín, GJ. (2014). Análisis de inestabilidades en BWR con el código acoplado 3D RELAP5/PARCSv2.7. Aplicación al evento sucedido en Oskarshamn-2 en 1999. Grupo Senda. http://hdl.handle.net/10251/49864

Acoplamiento de los códigos TRACBF1/PARCSv2.7 en Linux sin interfaz externa de comunicación

[ES] El código TRAC-BF1 sigue siendo ampliamente utilizado por la industria nuclear para análisis de seguridad. Los modelos de planta desarrollados con este código termohidráulico están sumamente validados, por lo que es aconsejable seguir mejorando este código antes de migrar completamente a otro código diferente. El acoplamiento de este código termohidráulico con el código neutrónico de la NRC PARCSv2.7 amplia las capacidades de simulación a transitorios en los que la distribución de potencia juega un papel importante. En esta ponencia se presenta el procedimiento seguido para el acoplamiento de los códigos TRAC-BF1 y PARCSv2.7 sin PVM y en Linux.[EN] The TRAC-BF1 code is still widely used by the nuclear industry for safety analysis. The plant models developed using this code are highly validated, so it is advisable to continue improving this code before migrating to another completely different code. The coupling with the NRC neutronic code PARCSv2.7 increases the simulation capabilities in transients in which the power distribution plays an important role. In this paper, the procedure for the coupling of TRAC-BF1 and PARCSv2.7 codes without PVM and in Linux is presented.Barrachina Celda, TM.; Garcia Fenoll, M.; Abarca Giménez, A.; Miró Herrero, R.; Verdú Martín, GJ.; Concejal, A.; Soler, A. (2014). Acoplamiento de los códigos TRACBF1/PARCSv2.7 en Linux sin interfaz externa de comunicación. Grupo Senda. http://hdl.handle.net/10251/49852

Modelo termohidráulico-neutrónico 3D para análisis de oscilaciones de potencia en un reactor PWR

En los reactores tipo PWR se presentan fluctuaciones en el flujo neutrónico.En el presente trabajo se desarrolla un modelo termohidráulico-neutrónico para el análisis de oscilaciones de potencia en este tipo de reactores. El objetivo es conocer mejor la fenomenología real de planta.García Fenoll, M. (2011). Modelo termohidráulico-neutrónico 3D para análisis de oscilaciones de potencia en un reactor PWR. http://hdl.handle.net/10251/15364Archivo delegad

Anàlisi d'un accident d'ejecció de barra de control en un reactor nuclear pwr amb el codi acoblat termohidràulic-neutrònic 3d RELAP5/PARCSv2.7

Proyecto ConfidencialGarcia Fenoll, M. (2010). Anàlisi d'un accident d'ejecció de barra de control en un reactor nuclear pwr amb el codi acoblat termohidràulic-neutrònic 3d RELAP5/PARCSv2.7. http://hdl.handle.net/10251/33782.Archivo delegad

Análisis de fluctuaciones termo-hidráulicas en C.N. Trillo mediante el código acoplado 3D RELAP5/PARCSv2.7

[EN] In this work, an analysis of the behavior of a PWR facing different perturbations on the thermalhydraulic parameters at the inlet is presented. This work is part of the joint efforts between CNAT and ISIRYM for the neutronic noise study. A set of perturbations on the inlet core mass flow are performed with the 3D coupled neutronic-thermalhydraulic code RELAP5/PARCSv2.7.[ES] En este trabajo se presenta el análisis del comportamiento del núcleo de un reactor PWR frente a distintas perturbaciones de los parámetros termohidráulicos a la entrada de éste. Este trabajo forma parte de los esfuerzos conjuntos de CNAT e ISIRYM en el estudio del fenómeno de ruido neutrónico. Para ello se simulan una serie de perturbaciones del caudal de entrada al núcleo mediante el código 3D acoplado neutrónico-termohidráulico RELAP5/PARCSv2.7.Garcia Fenoll, M.; Barrachina Celda, TM.; Miró Herrero, R.; Verdú Martín, GJ.; Bermejo, J.; López, A.; Ortego, A. (2014). Análisis de fluctuaciones termo-hidráulicas en C.N. Trillo mediante el código acoplado 3D RELAP5/PARCSv2.7. Grupo Senda. http://hdl.handle.net/10251/49862

Actas del IV Foro Académico Internacional sobre Animación ANIMA2015. El estado de independencia

El primer festival ANIMA, focalizó sobre la problemática de la animación independiente; casi quince años después volvemos a considerar significativo revisar la situación de la animación independiente actual. Tomamos, entonces, como eje organizador para esta edición El estado de independencia, un término que pedimos prestado a Vangelis , Donna Summer y Otto Alder . Deseamos pensar la independencia como un estado, como una forma de ser, como una modalidad política que atraviesa nuestras vidas como actores del campo de la animación. Surgen así numerosos cuestionamientos: ¿A qué nos referimos con animación independiente, aquí y ahora? ¿Existen una única animación independiente, o es un fenómeno que se presenta de diversas maneras? ¿Cuál es la independencia / dependencia de la forma animada respecto del panorama contemporáneo audiovisual? ¿Qué cambios sobre este estado de independencia fueron causados por los avances tecnológicos? ¿Es posible enseñar a ser independiente desde la animación? Con la intención de encontrarnos y desarrollar múltiples miradas sobre estas preguntas, y otras posibles que se gestarían espontánemente, es que realizamos la convocatoria para participar en el IV Foro Académico Internacional sobre Animación ANIMA2017. La presente publicación reúne los trabajos de docentes, investigadores y estudiosos independientes de la animación que se sumaron a nuestra propuesta

How do women living with HIV experience menopause? Menopausal symptoms, anxiety and depression according to reproductive age in a multicenter cohort

CatedresBackground: To estimate the prevalence and severity of menopausal symptoms and anxiety/depression and to assess the differences according to menopausal status among women living with HIV aged 45-60 years from the cohort of Spanish HIV/AIDS Research Network (CoRIS). Methods: Women were interviewed by phone between September 2017 and December 2018 to determine whether they had experienced menopausal symptoms and anxiety/depression. The Menopause Rating Scale was used to evaluate the prevalence and severity of symptoms related to menopause in three subscales: somatic, psychologic and urogenital; and the 4-item Patient Health Questionnaire was used for anxiety/depression. Logistic regression models were used to estimate odds ratios (ORs) of association between menopausal status, and other potential risk factors, the presence and severity of somatic, psychological and urogenital symptoms and of anxiety/depression. Results: Of 251 women included, 137 (54.6%) were post-, 70 (27.9%) peri- and 44 (17.5%) pre-menopausal, respectively. Median age of onset menopause was 48 years (IQR 45-50). The proportions of pre-, peri- and post-menopausal women who had experienced any menopausal symptoms were 45.5%, 60.0% and 66.4%, respectively. Both peri- and post-menopause were associated with a higher likelihood of having somatic symptoms (aOR 3.01; 95% CI 1.38-6.55 and 2.63; 1.44-4.81, respectively), while post-menopause increased the likelihood of having psychological (2.16; 1.13-4.14) and urogenital symptoms (2.54; 1.42-4.85). By other hand, post-menopausal women had a statistically significant five-fold increase in the likelihood of presenting severe urogenital symptoms than pre-menopausal women (4.90; 1.74-13.84). No significant differences by menopausal status were found for anxiety/depression. Joint/muscle problems, exhaustion and sleeping disorders were the most commonly reported symptoms among all women. Differences in the prevalences of vaginal dryness (p = 0.002), joint/muscle complaints (p = 0.032), and sweating/flush (p = 0.032) were found among the three groups. Conclusions: Women living with HIV experienced a wide variety of menopausal symptoms, some of them initiated before women had any menstrual irregularity. We found a higher likelihood of somatic symptoms in peri- and post-menopausal women, while a higher likelihood of psychological and urogenital symptoms was found in post-menopausal women. Most somatic symptoms were of low or moderate severity, probably due to the good clinical and immunological situation of these women

COVID-19 in hospitalized HIV-positive and HIV-negative patients : A matched study

CatedresObjectives: We compared the characteristics and clinical outcomes of hospitalized individuals with COVID-19 with [people with HIV (PWH)] and without (non-PWH) HIV co-infection in Spain during the first wave of the pandemic. Methods: This was a retrospective matched cohort study. People with HIV were identified by reviewing clinical records and laboratory registries of 10 922 patients in active-follow-up within the Spanish HIV Research Network (CoRIS) up to 30 June 2020. Each hospitalized PWH was matched with five non-PWH of the same age and sex randomly selected from COVID-19@Spain, a multicentre cohort of 4035 patients hospitalized with confirmed COVID-19. The main outcome was all-cause in-hospital mortality. Results: Forty-five PWH with PCR-confirmed COVID-19 were identified in CoRIS, 21 of whom were hospitalized. A total of 105 age/sex-matched controls were selected from the COVID-19@Spain cohort. The median age in both groups was 53 (Q1-Q3, 46-56) years, and 90.5% were men. In PWH, 19.1% were injecting drug users, 95.2% were on antiretroviral therapy, 94.4% had HIV-RNA < 50 copies/mL, and the median (Q1-Q3) CD4 count was 595 (349-798) cells/μL. No statistically significant differences were found between PWH and non-PWH in number of comorbidities, presenting signs and symptoms, laboratory parameters, radiology findings and severity scores on admission. Corticosteroids were administered to 33.3% and 27.4% of PWH and non-PWH, respectively (P = 0.580). Deaths during admission were documented in two (9.5%) PWH and 12 (11.4%) non-PWH (P = 0.800). Conclusions: Our findings suggest that well-controlled HIV infection does not modify the clinical presentation or worsen clinical outcomes of COVID-19 hospitalization