Results 31 to 40 of about 28,259 (157)
Predicción de la frescura del aceite de oliva virgen extra durante el almacenamiento mediante espectroscopía de fluorescencia [PDF]
, 2017 Virgin olive oil quality relates to flavor and unique health benefits. Some of these properties are at the most desirable level when the oil is just extracted, since it is not a product that improves with age.
Aparicio, R. +5 more
core +2 more sources
Revista de Investigación Agraria y Ambiental• Contextualización: las actividades antropogénicas influyen en el ciclo de nitrógeno y fósforo en aguas superficiales, siendo un problema ambiental significativo.
Jean Carlos Ospino Jiménez +4 more
doaj +1 more source
Estudio de basaltos mediante espectroscopía de plasma inducido por láser (LIBS) para la fabricación de bloques de lapilli [PDF]
, 2016 Se analizaron mediante espectroscopía de plasma inducido por láser (LIBS), espectroscopía Raman y difracción de rayos x (XRD) muestras seleccionadas de diversas zonas de Tenerife, con el objetivo de identificar su composición química elemental y ...
Aquilano, Roberto +6 more
core +1 more source
Experimental and Computational Raman and SERS Study of Acid Blue 113
Journal of Raman Spectroscopy, Volume 57, Issue 2, Page 239-254, February 2026.The vibrational features of AB‐113 were investigated through experimental and theoretical analyses. SERS spectra showed enhanced responses under resonant excitation, especially at 532 and 632.8 nm, enabling identification limits as low as 1.0 × 10−8 mol L−1.
Thayla C. A. Coelho +2 more
wiley +1 more source
Angewandte Chemie, Volume 137, Issue 7, February 10, 2025.Connecting two pro‐diradicaloid species, namely cyclopenta[h,i]aceanthrylene, through an acetylene bridge has been shown to increase the cumulene character in one‐dimensional acetylene‐based conjugates. Spectroscopic analysis and calculations indicate significant π‐electronic delocalization during the low temperature‐promoted planarization of the ...
Álvaro Corrochano Fernández +5 more
wiley +2 more sources
LucentumLos macroútiles han sido habitualmente marginados de los estudios, debido al peso que ha tenido la industria lítica tallada para la observación de los cambios y continuidades cronológicos y culturales. Sin embargo, estos elementos aparecen en yacimientos
Margarita Vadillo Conesa +6 more
doaj +1 more source
New Phytologist, Volume 249, Issue 1, Page 448-459, January 2026.Summary Mycorrhizal associations between fungi and plants are a fundamental aspect of terrestrial ecosystems. Mycorrhizas occur in c. 85% of extant plants, yet their geological record remains sparse. Rare fossil evidence from early terrestrial environments offers crucial insights into these ancient symbioses, but visualizing fossil fungi at the ...
Christine Strullu‐Derrien +7 more
wiley +1 more source
Nanocomposites, 2022 PCBs were used for several decades as coolants, lubricants in transformers, plasticizers, and dielectric fluids, being highly carcinogenic and representing a severe environmental problem in soil and water. Pure and modified TiO2 has been the most studied
Aura S. Merlano +4 more
doaj +1 more source
Determinación del contenido de ácido clorogénico por Espectroscopía UV-VIS en hojas secas y verdes de cecropia peltata (Guarumo) en árboles silvestres de 10, 15, y 20 M de altura en la reserva natural laguna de apoyo, Masaya Marzo-Junio 2013 [PDF]
, 2014 La especie Cecropia Peltata(Guarumo) se utiliza como planta medicinal para el tratamiento de diversas enfermedades, el ácido clorogénico e isoorientina son los principales constituyentes activos de las hojas. En éste estudio se determinó
Gallegos Rios, Rosa de Sarón +1 more
core +1 more source
Journal of Raman Spectroscopy, Volume 56, Issue 11, Page 1203-1214, November 2025.Palynofacies assemblages from the onshore Potiguar Basin display a wide thermal maturity range, with vitrinite reflectance (%Ro) values of 0.46–2.72 measured from nine samples at depths of 1059–4443 m. A strong correlation exists between %Ro and Raman parameters, specifically the G‐band's full width at half maximum.
Gabriel A. Barberes +14 more
wiley +1 more source