Results 21 to 30 of about 16,490 (145)
Tecnología en Marcha, 2014 Dada la importancia del medicamento denominado teofilina para su uso en pacientes con problemas de asma y su alto consumo en Costa Rica, se eligió el producto en tabletas de 150 mg de teofilina de una casa farmacéutica que lo produce y distribuye en ...
Esteban Pérez-López +3 more
doaj +1 more source
Journal of Extracellular Vesicles, Volume 15, Issue 10, October 2026.ABSTRACT Helicobacter pylori infection is characterized by chronic gastric inflammation driven by persistent activation of innate immune signalling pathways. Outer membrane vesicles (OMVs) released by H. pylori are important mediators of host–pathogen interactions. Although several mechanisms of OMV internalization have been described, how specific OMV‐
Mariaignacia Rubilar +6 more
wiley +1 more source
Estudio computacional de RMN del acetaminofén y sus precursores químicos
infoANALITÍCA, 2018 En este artículo, se presenta un estudio espectroscópico computacional de Resonancia Magnética Nuclear del acetaminofén y sus principales precursores químicos: el 4-nitrofenol y el 4-aminofenol.
Sebastian Cuesta +2 more
doaj +1 more source
A Mini Atlas of H-Band Spectra of Southern Symbiotic Stars
Galaxies, 2023 Symbiotic stars are interacting binary systems composed of an evolved star (generally a late-type red giant) and a degenerate or dwarf companion in orbit close enough for mass transfer to occur. Understanding the status of the late-type star is important
Paula Esther Marchiano +6 more
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New Phytologist, Volume 251, Issue 2, Page 811-829, July 2026.Summary Reflectance spectroscopy is a rapid method for estimating traits and discriminating species. Spectral libraries from herbarium specimens represent an untapped resource for generating broad phenomic datasets across space, time, and taxa. We conducted a proof‐of‐concept study using trait data and spectra from herbarium specimens up to 179 yr old,
Dawson M. White +6 more
wiley +1 more source
LA DETECCIÓN DE LA GASOLINA ADULTERADA: UNA BREVE REVISIÓN DE LOS PRINCIPALES MÉTODOS ANALÍTICOS
Revista Centro Azúcar, 2020 Introducción: La adulteración de la gasolina supone pérdida de ingresos fiscales, daños mecánicos en los automóviles y efectos nocivos para la salud y medio ambiente.
Carlos José Boluda
doaj
ON THE [ArIV]/[ArIII] LINE RATIO IN PLANETARY NEBULAE
Revista de Investigación de Física, 2000 Estudios espectroscópicos anteriores de las nebulosas planetarias han demostrado que la razón de línea [ArIV] / [ArIII] observada no es reproducida por los modelos de fotoionización.
R. E. Carlos Reyes +2 more
doaj +1 more source
Journal of Computational Chemistry, Volume 47, Issue 16, 15 June 2026.ABSTRACT The rational design of lanthanide‐based luminescent systems using purely theoretical approaches remains challenging due to the reliance of existing models on experimental data. Herein, we propose a theoretical protocol for the design of new Eu3+ based luminescent systems, starting from a previously synthesized and experimentally characterized ...
Claudio M. B. Neto +5 more
wiley +1 more source
Angewandte Chemie, Volume 137, Issue 15, April 7, 2025.Steady state free precession (SSFP) – Complete Reduction to Amplitude Frequency Tables (CRAFT) not only improves sensitivity, resolution and number of signals detected by NMR but can also dramatically reduce experiment times. This powerful approach unlocks the potential of NMR as a discovery tool, enabling unprecedented detection of fluorinated ...
Jeremy R. Gauthier +10 more
wiley +2 more sources
International Journal of Dairy Technology, Volume 79, Issue 2, April–June 2026.This study evaluates the combined effects of citrate and sodium mono‐, di‐ and triphosphates on the colloidal and thermal stability of skim milk, using physicochemical parameters. The results show that specific combinations of chelating salts increase milk resistance to heat‐induced coagulation, reduce the free calcium and maintain the micellar ...
Thaís Lourenço Oliveira +5 more
wiley +1 more source