RESUMEN
For the determination of the fast neutron load of the reactor pressure vessel a mixed calculational procedure was developed. The procedure was applied to the Unit II of Paks NPP, Hungary. The neutron source on the outer surfaces of the reactor was determined by a core design code, and the neutron transport calculations outside the core were performed by the Monte Carlo code MCNP. The reaction rate in the activation detectors at surveillance positions and at the cavity were calculated and compared with measurements. In most cases, fairly good agreement was found.
Asunto(s)
Modelos Estadísticos , Reactores Nucleares , Monitoreo de Radiación/métodos , Protección Radiológica/instrumentación , Protección Radiológica/métodos , Medición de Riesgo/métodos , Algoritmos , Simulación por Computador , Falla de Equipo , Análisis de Falla de Equipo/métodos , Arquitectura y Construcción de Instituciones de Salud/métodos , Hungría , Método de Montecarlo , Neutrones , Presión , Dosis de Radiación , Programas InformáticosRESUMEN
The authors while describing their patients suffering from osteopetrosis disease, discuss its morphological aspects and possible patho-mechanism. The disease with osteosclerosis can be inherited recessively or dominantly. The recessively inherited type is less frequent and leads to early death due to secondary developing myelofibrosis. The dominantly inherited form is more benevolent, the patients are free of symptoms in half of cases. The patients described by the authors belong to the dominantly inherited type of the Albers-Schönberg disease. One of their patients suffers from rheumatoid arthritis and myelodisplastic syndrome apart from osteopetrosis. Having considered the publications authors have found data based on which the common source and connection of these three diseases can be rendered possible. Analyzing these data they draw attention to the possible pathogenic role of cytokines, first of all of the macrophag colony stimulating factor, moreover to the rheumatic manifestation of the paraneoplastic syndrome.
Asunto(s)
Osteopetrosis/genética , Artritis Reumatoide/complicaciones , Citocinas , Femenino , Genes Dominantes , Humanos , Factor Estimulante de Colonias de Macrófagos , Persona de Mediana Edad , Síndromes Mielodisplásicos/complicaciones , Osteopetrosis/complicaciones , Osteopetrosis/diagnóstico por imagen , RadiografíaRESUMEN
The authors report on the clinical observation of 23 patients (5 women, 18 men) who suffered from seronegative spondylarthritis following chlamydia infection diagnosed clinically and serologically. Nine patients (2 women, 7 men) carried HLA B27 histocompatibility antigen. Sacroileitis confirmed by radiology was found in 16 cases. Genicular synovitis was the most frequent peripheral articular syndrome as well as Achilles tendinitis, "sausage-like" swelling of the finger and toes were observed and the ankle-, wrist-, elbow- and in a few cases the sternoclavicular and temporomandibular joint showed also involvement. Urological inflammation occurred in 9 cases, ophthalmological inflammation in 3 cases and pleuritis, pericarditis was observed in 1 patient. During the observation period 15 patients recovered upon Doxycyclin (Chinoin), Eryc (Biogal) non-steroid and occasional steroid therapy given 3 weeks long.