Results 21 to 30 of about 320,720 (248)
In-Red 2023 - IX Congreso Nacional de Innovación Educativa y Docencia en Red, 2023 A pesar de la creciente popularidad de las técnicas de aprendizaje automático (“machine learning”, en inglés) su enseñanza en química analítica es un reto debido a la falta de conocimientos en programación por parte del alumnado y el profesorado.
David Pérez Guaita +2 more
semanticscholar +1 more source
“Flipped labroom”: clase invertida en las prácticas de Química Analítica
In-Red 2023 - IX Congreso Nacional de Innovación Educativa y Docencia en Red, 2023 La Química Analítica, como disciplina aplicada, incluye contenidos prácticos que se realizan en el laboratorio, que en ocasiones resultan difíciles de comprender para el alumnado. El modelo de clase invertida o “flipped-clasroom” es un enfoque pedagógico
Beatriz Jurado Sánchez +3 more
semanticscholar +1 more source
Optimization of experimental conditions for skin-PAMPA measurements
ADMET and DMPK, 2020 In recent years, the parallel artificial membrane permeability assay (PAMPA) has been extended for prediction of skin permeation by developing an artificial membrane which mimics the stratum corneum structure, skin-PAMPA.
Sara Soriano-Meseguer +3 more
doaj +1 more source
Luminescent assays based on carbon dots for inorganic trace analysis
Reviews in Analytical Chemistry, 2015 Carbon dots (CDs) are a recently discovered class of fluorescent nanomaterials with great potential to be applied in the analytical field. CDs have demonstrated to be a promising alternative to conventional organic fluorophores or quantum dots as optical
Costas-Mora Isabel +3 more
doaj +1 more source
Eclética Química, 2018 National Health Surveillance Agency (ANVISA) established in the decree number 54 maximum allowed levels for Ni and Pb in mineral and natural waters at 20 μg L-1 and 10 μg L-1, respectively.
Volnei Resta Amorim Filho +2 more
doaj +1 more source
Fenton-like Reactivity on Fe<sub>3</sub>O<sub>4</sub> Nanozymes Driven by Charge Transfer and Interfacial Water. [PDF]
SmallIn magnetite nanozymes, subsurface Fe2⁺ donates electrons to H2O2, forming fleeting Fe(IV)═O and •OH species. The process couples charge flow, water‐mediated reactivity, and nanoparticle oxidation in a dynamic Fenton‐like cycle. Abstract Magnetite (Fe3O4) nanoparticles, widely recognized as inorganic nanozymes due to their enzyme‐like catalytic ...
Sánchez VM +9 more
europepmc +2 more sources
Electron dynamics in complex environments with real-time time dependent density functional theory in a QM-MM framework [PDF]
, 2014 This article presents a time dependent density functional theory (TDDFT) implementation to propagate the Kohn-Sham equations in real time, including the effects of a molecular environment through a Quantum-Mechanics Molecular-Mechanics (QM-MM ...
González Lebrero, Mariano Camilo +5 more
core +1 more source
Educación Química, 2015 En el presente trabajo se hace un estudio del comportamiento de la capacidad buffer de sistemas polidonadores. Se analiza la capacidad buffer cuando los valores de pKa de los ácidos polipróticos están cercanos y alejados unos de otros. Además, se analiza
Norma Rodríguez-Laguna +2 more
doaj +1 more source
Contribuciones a las ciencias socialesA Pandemia da COVID-19, decretada em março de 2020 pela Organização Mundial de Saúde (OMS), trouxe consigo diversos impactos econômicos, sanitários, sociais, políticos, financeiros, crises na saúde e educacionais, motivados pelas recomendações do ...
José Evaristo Gonçalves +5 more
openalex +3 more sources
Determination of zinc in fuel alcohol by anodic stripping voltammetry
Eclética Química, 2018 The presence of heavy metals in fuel ethanol is obtained in different steps as production and storage of ethanol, constituting an inorganic contamination. Quantitative analysis of these contaminants has been usually carried out by conventional techniques
Marcelo Firmino de Oliveira +3 more
doaj +1 more source