Física
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Converging science and literature cultures: learning physics via The Little Prince novella
(2018)Primary level education follows a pedagogy model where literature and science have been historically separated. Natural children processes are disrupted, as learning based on play curiosity is completely transformed by a ... -
Evaluación de la Dosis Efectiva por la Incorporación de Flúor 18 en el Personal Ocupacionalmente Expuesto del Laboratorio Ciclotrón-PET/CT
(2023)La incorporación de radionúclidos es uno de los riesgos asociados a las prácticas de producción y manipulación de radiofármacos, por lo que, esta investigación tiene como objetivo general desarrollar una metodología para ... -
Biological and dosimetric evaluation of [11C]S-adenosyl methionine as a potential agent for prostate cancer diagnosis
(2018)Introduction: [11C]Choline ([11C]COL) has been widely used for prostate cancer diagnosis; however, this radiopharmaceutical is not recommended for patients with a low absolute PSA value (< 1 ng/mL) due to its limited ... -
Determination of the dosimetric characteristics of a new polymer-encapsulated, elongated, 103Pd brachytherapy source using Monte Carlo calculations
(2009)Purpose: To use Monte Carlo calculations to determine the dosimetric characteristics of CivaString, a new polymer-encapsulated, elongated, 103Pd brachytherapy source made by Civatech Oncology for prostate implants. This ... -
QA Programme of the TLD laboratory of the University of Costa Rica: IEC 61066 testing
(2008)The Thermoluminescence Personal Dosimetry Laboratory of the University of Costa Rica provides dose measurements for around 90% of occupational radiation workers in the country. The assessment of doses to workers routinely ... -
Cálculo del corrimiento al rojo fotométrico de galaxias submilimétricas alrededor de galaxias de núcleos activos
(2022)Las galaxias submilimétricas (SMGs) son fuentes que se detectaron por primera vez en los años 90 y se volvieron de mucho interés para la comunidad astronómica debido a sus altas tasas de formación estelar y sus altos ... -
OpenDose: Open access resources for nuclear medicine dosimetry
(2020)Radiopharmaceutical dosimetry depends on the localization in space and time of radioactive sources and requires the estimation of the amount of energy emitted by the sources deposited within targets. In particular, when ... -
Sesión "Medicina nuclear"
(2017-01)En la sesión dedicada a la Medicina Nuclear (MN) se identificaron los cinco aspectos que se consideran más problemáticos en la protección radiológica en MN. Estos hacen referencia a: 1. Garantizar que la dosis administrada ... -
Evaluation of [18F] FNM biodistribution and dosimetry based on whole-body PET imaging of rats
(2018)Introduction: The aim of this work was to study the biodistribution, metabolism and radiation dosimetry of rats injected with [18F]FNM using PET/CT images. This novel radiotracer targeting NMDA receptor has potential ... -
Dosimetry and Toxicity Studies of the Novel Sulfonamide Derivative of Sulforhodamine 101([18f]srf101) at a Preclinical Level
(2019)Abstract: Background: The SR101 N-(3-[18F]Fluoropropyl) sulfonamide ([18F]SRF101) is a Sul forhodamine 101 derivative that was previously synthesised by our group. The fluorescent dye SR101 has been reported as a marker ... -
Implementation of patient dosimetry in the clinical practice after targeted radiotherapy using [177Lu-[DOTATO,Tyr3]-octreotate
(2018-11-29)Background: This study’s aim was to develop our dosimetric methodology using a commercial workstation for the routine evaluation of the organs at risk during peptide receptor radionuclide therapy (PRRT) with 177Lu. Methods: ... -
Monte Carlo dosimetry of a realistic multicellular model of follicular lymphoma in a context of radioimmunotherapy
(2020)Purpose Small-scale dosimetry studies generally consider an artificial environment where the tumors are spherical and the radionuclides are homogeneously biodistributed. However, tumor shapes are irregular and radiopharmaceutical ... -
Comparison of commercial dosimetric software platforms in patients treated with 177Lu-DOTATATE for peptide receptor radionuclide therapy
(2020)Purpose The aim of this study was to quantitatively compare five commercial dosimetric software platforms based on the analysis of clinical datasets of patients who benefited from peptide receptor radionuclide therapy ... -
Clinical implementation of PLANET® Dose for dosimetric assessment after [177Lu]Lu-DOTA-TATE: comparison with Dosimetry Toolkit® and OLINDA/EXM® V1.0
(2021)The aim of this study was to compare a commercial dosimetry workstation (PLANET® Dose) and the dosimetry approach (GE Dosimetry Toolkit® and OLINDA/EXM® V1.0) currently used in our department for quantification of the ... -
Modelling SPECT auto-contouring acquisitions for 177Lu & 131I molecular radiotherapy using new developments in Geant4/GATE
(2022)Purpose Monte Carlo modelling of SPECT imaging in Molecular Radiotherapy can improve activity quantification. Until now, SPECT modelling with GATE only considered circular orbit (CO) acquisitions. This cannot reproduce ... -
Diseño de propuesta didáctica experimental en la Enseñanza de la Física aplicada al tema de Electricidad para estudiantes de Undécimo año del Colegio Científico Costarricense de San Ramón
(2020-12-16)Como parte de una necesidad y mejora en el proceso de enseñanza aprendizaje en la educación diversificada del SNCCC, en la lección de física con laboratorio se planteó la investigación de una propuesta didáctica experimental ... -
The problem of engines in statistical physics
(2021-08-22)Engines are open systems that can generate work cyclically at the expense of an external disequilibrium. They are ubiquitous in nature and technology, but the course of mathematical physics over the last 300 years has ... -
Propuesta de estrategias metodológicas para el contenido curricular “Oscilaciones y ondas mecánicas” que propicie el aprendizaje significativo en el estudiantado que asiste al curso Laboratorio de Física General II de la Universidad de Costa Rica, Sede de Occidente durante el II semestre del 2020
(2020)El presente trabajo tiene por objetivo general el proponer estrategias metodológicas para el contenido curricular “Oscilaciones y ondas mecánicas” que propicien un aprendizaje significativo en el estudiantado que asiste ... -
Estudio computacional de la adsorción de agua en cristales de eritrina y pakhomovskyita mediante modelación computacional de sus propiedades electrónicas de bulk y de superficie
(2022)Los cristales eritrina y pakhomovskyita son cristales del grupo vivianita con la formula Co3(XO4)2 · 8H2O, donde X es As o P respectivamente. Estos cristales han sido estudiado como catalizadores para la oxidación del ... -
Evolution of a group of coronal holes associated with eruption of nearby prominences and CMEs
(2014-01-06)We present the results of detailed study of a set of activities developed on one of three enclosed sectors of solar region during the period of February 07-13, 2012. We found the sequence of certain topological perturbations ...