Calleja Rubio, Jose Antonio; Gutierrez Martin, Fernando; Colón Hernández, Cristobal . vida edad- y sexo-específicas para la población a que pertenece el individuo. dose glandular e tempo de exposição para diferentes espessuras de filtros .. Rodrigues Junior, O.; Campos, L. L. [Instituto de Pesquisas Energeticas e. Filtro de Kalman: es un algoritmo de estimaci?n cuadr?tica que usa una serie de . y ayuda a la planificaci?n?ptima de las maniobras operacionales %N null %P . un mecanismo est?ndar de enrutamiento pro-activo, que trabaja de manera Antonio Calvo-Manzano Villal?n %A Edgar Caballero %A Magdalena Arcilla . – darranjament-parcial-de-la-pca-antonio-machado-i-el-carrer-john-f-kennedy en-la-rehabilitacion-de-las-dos-fachadas-exteriores-indicadas-que-pertenecen -programa-municipal-de-envejecimiento-activo-del-ayuntamiento-de-segovia .
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Relojes de agua, una oportunidad para calcular integrales. Directory of Open Access Journals Sweden. Herramienta web para calcular el impacto radiologico asociado al transporte de residuos radiactivos ampliticadores ATC.
A method for determining an indicator of effective dose calculation due to inhalation of Radon and its progeny from in vivo measurements; Um metodo para determinar um indicador para calcular dose efetiva devida a inalacao de Radonio operacionaels seus descendentes utilizando medicoes in vivo. Direct measurement of the absolved dose to lung tissue from inhalation of radon and its progeny is not possible and must be calculated using dosimetric models, taking into consideration the several parameters upon which the dose calculation depends.
To asses the dose due to inhalation filtrps radon and its progeny, it is necessary to estimate the cumulative exposure. Historically, this has been done using WLM values estimated with measurements of radon concentration in air.
The filgros concentration in air varies significantly, however, in space with time, and the exposed individual is also constantly moving around. This makes it almost impossible to obtain a precise estimate of an individual’s inhalation exposure.
The measurements were performed in a whole body counter. With this technique, the exposed individuals become, in affect, their own samplers and dosimeters and the estimate of cumulative exposure is not affected by the variation of the atmospheric concentration of radon and its progeny in time and space.
To realize these measurements a methodology was developed to determine the subject’s background, using a head phantom made with a cubic plastic container containing known amounts of potassium and calcium dissolved in four liters of water. The effective doses calculated from the in lperacionales measurements are compared to effective doses estimated, for. The effective doses calculated from the in vivo measurements are compared to effective doses. Existen muchas otras aplicaciones para las representaciones irreducibles de un grupo.
A new instrument for calculating year absolute fracture risk. The efficacy of new pharmacological agents for the prevention of osteoporotic fractures and the clinical decision to intervene with that purpose in daily medical practice have been guided by the evaluation of bone mineral filtross BMD. However, given the multifactorial. Besides, the program atonio the location of the discrepancy for segment – overall, anterior and posterior – and individual – qctivos dental element, allowing larger precision in the planning of the strategies for the resolution of the problems and walking for a success orthodontic treatment.
Es verificada mediante 5 ejemplos la aplicabilidad del estado actual de las recomendaciones de profundid Helicobacter pylori infection in patients with calcular cholecystitis: Helicobacter pylori, a gram negative bacillus has been recognised as a public health problem and amplificaodres half of the world population has H.
Objective of this study was to determine the frequency of H. Anonio cross-sectional descriptive study was conducted at Liaquat University Hospital, Hyderabad, Pakistan from April to September All patients with history of gallstone presented with acute abdominal pain, dyspepsia, bloating and epigastric discomfort and diagnosed as calcular cholecystitis were further evaluated for the detection of H.
Frequency and percentage of H. Total patients of cholelithiasis underwent laparoscopic cholecystectomy were recruited.
Eighty-two percent patients had family history of gallstones. The mean age of overall study population was A possible relationship was identified between Helicobacter pylori and calcular. This procedure is first used toobtain form geometry factor.
Furthermore, the factor J foundation for these types of gears wasestablished. The results of this research determinates analytically the maximum bending stress, usingthe form geometry factor and bending geometry factor, built equations, tables and diagramsrepresenting these parameters. The practical application of this solution approach allows thegeneralization of it in use in transmission.
Full Text Available The aim of this paper is to calculate net input-output multipliers using different adjustments on the Leontief inverse, without simply removing part of its elements. Moreover, in order to increase the accuracy of the estimation, a standardization of the inverse is offered. The empirical application is presented for the Galician economy, based on the year A comparison between the proposed extended methodology and the traditional I-O techniques is shown, throughout the results obtained in the estimation of the backward and forward sectoral linkages.
With this new approach, some of the conventional key sectors will not appear as such, like the case of the construction sector. Dose vocal em professores: Para o estudo, dois grupos foram analisados: Dose coefficients for public exposition; Coeficientes de dose para exposicao ao publico.
Thirty-three were on monotherapy and fifteen on polytherapy. The other drugs were kept unchanged in the patients on polytherapy. The dose of CBZ was increased if no control was observed and the patient had no side effects. Anticonvulsant plasma levels were taken to confirm patient compliance. The average plasma level was 9. Seizure’s control was observed in 7 Thirty-nine patients did not show any control Testicular shield for para -aortic radiotherapy and estimation of gonad doses.
The dimensions of the testicular shield were 6. During treatment, this shield was held in position by a rectangular sponge and Styrofo During treatment, this shield was held in position by a rectangular sponge and Styrofoam support. Phantom measurement was carried out with a humanoid phantom and a 0.
The mean energy of the scattered photon was calculated for single scattering at selected distances from the beam edge and with different field dimensions. One patient received radiotherapy with an inverted Y field and gonad doses were estimated using calibrated thermo-luminescent detector Operaciona,es chips.
Measured doses with the ion chamber were 7.
These values decreased to 4. The measured doses at the gonads during the patient’s treatment were 0. The dose received by the testis for the full course of treatment was 32 cGy 0.
The first-scatter energy estimated zntonio the gonads is around 1. During the patient’s treatment, the estimated absorbed doses at the gonads were comparable with reported values in similar treatments.
The testicular jhnior reported in this study is of light weight and could be used conveniently in treatments of abdominal fields. As a result of the existing interest for knowing the regional values of the most useful respiratory variables in clinics, it is presented the mathematical foundation of a software that quantifies pulmonary images obtained in gamma-camera.
The isotope distribution becomes into 16 regional values of the pulmonary function.
The software evaluates the images starting from the relation isotope activity against time, and the incorporation of the following additional data: The medical acronyms used amplificadres identified in this paper and a physiological introduction on every respiratory variable is given. Eye dose measurements using conventional and rare-earth screens during tomography of the para -nasal sinuses. Eye dose measurements have been performed when using medium speed conventional and rare-earth screen-film combinations during tomography of the para -nasal sinuses.
The measurements showed that using conventional intensifying screens with the A. A total eye dose reduction of opreacionales Manual method for dose calculation in gynecologic brachytherapy; Metodo manual para o calculo de doses em braquiterapia ginecologica.
para calcular dose: Topics by
This paper describes a manual method for dose calculation in brachytherapy of gynecological tumors, which allows the calculation of the doses at any plane or point of clinical interest.
This method uses basic principles of vectorial algebra and the simulating orthogonal films taken from the patient with the applicators and dummy sources in place. The critical points associated with the final accuracy of the proposed method is related to the quality of the image and the appropriate selection of the magnification factors.
This method is strongly recommended to the radiation oncology centers where are no junuor planning systems available and the dose calculations are manually done. To determine the efficacy and toxicity of extended-field radiotherapy RT with concurrent platinum-based chemotherapy in patients with uterine cervical carcinoma and positive para -aortic nodes.
Each patient had received Each patient also underwent six or seven applications of high- dose -rate brachytherapy median, 5 Gy to point A at each session. The median follow-up period of surviving patients was 39 months. The most common acute toxicity was hematologic, observed in 23 women.
Severe acute and late gastrointestinal toxicity was observed in 3 and 4 patients, respectively. More than three-quarters of patients showed a complete response, encompassing the primary mass, metastatic pelvic, and para -aortic lymph nodes. Of the 33 women, 15 had no evidence of disease, 6 had persistent disease, 4 developed in-field failures, and 6 developed distant failures. Concurrent chemoradiotherapy with extended-field radiotherapy is feasible in women filtroz uterine cervical carcinoma and positive para -aortic lymph nodes, with acceptable late morbidity and a high survival rate, although it was accompanied by substantial acute toxicity.
Monte Carlo calculations for doses in organs and tissues to oral radiography; Calculo de Monte Carlo para doses em orgaos antono tecidos para radiologia oral.
Using the MIRD 5 phantom and Monte Carlo technique, organ doses in patients undergoing external dental examination were calculated taking into account the different x-ray beam geometries and the various possible positions of x-ray source with regard to the head of the patient. It was necessary to introduce in the original computer program a new source description specific for dental examinations. To have a realistic evaluation of organ doses during dental examination it was necessary to introduce a new region in the phantom heat which characterizes the teeth and salivary glands.
The attenuation of the x-ray beam by the lead shield of the radiographic film was also introduced in the calculation. This study was performed to assess the radiosurgical results of meningiomas extending into the internal acoustic canal para -IAC meningiomaswith a particular focus on the effect of radiation dose to the cochlea on hearing outcome. A total of 50 patients who underwent radiosurgery for para -IAC meningiomas between andwhich were followed for 2 years, were enrolled.
The mean age was The mean tumor volume was 6. The mean follow-up duration was 46 months range, 24— Among 42 patients with serviceable hearing at the time of radiosurgery, it was preserved in 41 The maximal and mean radiation doses to the cochleae of these 41 patients were 5. The maximal dose to the cochlea of the patient who lost hearing after radiosurgery was 4. The radiation dose to the cochlea may have the minimal toxic effect on the hearing outcome in patients who undergo radiosurgery for para -IAC meningiomas.