Ciencias básicas
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Recent Submissions
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Antimicrobial activity of different sodium and potassium salts of carboxylic acid against some common foodborne pathogens and spoilage-associated bacteria
(2018)Cleaning and disinfection represent the most important activities associated with the elimination of dirt and microorganisms at food processing plants. Improper procedures may lead to cross contamination of food leading ... -
First evidence for multimodal animal seed dispersal in orchids
(2022)Identifying the mechanisms for seed dispersal and persistence of species is a central aim of ecology. Seed dispersal by animals is an essential form of dissemination in many plant communities, including seeds of over 66% ... -
The International Oryza Map Alignment Project (IOMAP): the Americas—past achievements and future directions
(2022-12-17)The wild relatives of rice hold unexplored genetic diversity that can be employed to feed an estimated population of 10 billion by 2050. The Oryza Map Alignment Project (OMAP) initiated in 2003 has provided comprehensive ... -
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 ... -
Propuesta para la creación de un índice de medición del desempeño en gestión del riesgo de los gobiernos locales en Costa Rica
(2022)La presente investigación, tuvo como objetivo generar una propuesta para la creación de un índice de medición del desempeño en gestión del riesgo de los gobiernos locales en Costa Rica. Es un estudio con un enfoque ... -
Evaluación del papel del sexo y las etapas reproductivas en los procesos de comunicación acústica en el murciélago de ventosas thyroptera tricolor (Chiroptera: thyropteridae)
(2022)El comportamiento es uno de los rasgos más variables dentro del reino animal. Sin embargo, aún hay poca claridad sobre cuáles son los factores que inciden en su variabilidad. En muchas especies se sabe que con el inicio ... -
Sediment organic carbon stocks were similar among four species compositions in a tropical seagrass meadow
(2022)Seagrass meadows composed of larger species are assumed to store larger sediment organic carbon (Corg) stocks, storing more Corg in their tissues and larger leaves promoting greater burial of seagrass and non-seagrass Corg. ... -
Fungi with history: Unveiling the mycobiota of historic documents of Costa Rica
(2022-06-12)Through nondestructive techniques, we studied the physicochemical characteristics and mycobiota of five key historic documents from Costa Rica, including the Independence Act of Costa Rica from 1821. We determined that for ... -
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 ... -
Restaurando el arrecife: estrategias para el crecimiento de corales en viveros in situ en Bahía Culebra, Pacífico Norte de Costa Rica
(2022-11)Los arrecifes de coral son ecosistemas de una elevadísima diversidad biológica, que brindan a millones de personas una gran variedad de servicios ecosistémicos. Sin embargo, en las últimas décadas, han sufrido una ... -
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 ... -
Proporción sexual, estado nutricional y origen natal de las tortugas marinas Chelonia mydas y Eretmochelys imbricata en un sitio de alimentación en el Pacífico Norte de Costa Rica
(2022-12)Todas las especies de tortugas marinas suelen pasar un importante periodo de sus vidas concentras en distintas áreas de alimentación, sitios donde distintos grupos etarios mantienen una convivencia simpátrica para alimentarse ... -
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 ... -
Synthesis and Antibacterial Activity of Aromatic Homopropargyl Alcohols
(2017)Several aromatic homopropargyl alcohols, and derivatives were prepared by one-pot reaction of 1,3-dilithiopropyne (or its equivalent) with aldehydes and ketones. The antibacterial activity, of alcohols ... -
Palladium-Catalyzed One-Pot Conversion of Aldehydes and Ketones into 4‑Substituted Homopropargyl Alcohols and 5‑En-3-yn-1-ols
(2017)Sequential treatment of 2,3-dichloropropene with magnesium and n-BuLi generated the equivalent of 1,3- dilithiopropyne, which adds regiospecifically to aldehydes and ketones to produce homopropargyl alcohols. The ... -
Synthesis and Determination of Antibacterial Activity of Jacaranone and Synthetic Analogs
(2017)Natural product jacaranone, 1, and five more analog derivatives were synthesized and its antibacterial activity against Gram-positive and Gram-negative microorganisms was tested. One of these derivatives, 5, ...