Results 61 to 70 of about 1,771 (112)

Jorge Luis Borges y Wilhem Ostwald. Notas para una alianza entre la ciencia y las humanidades

Letras, 2005
Jorge Luis Borges (1899-1986) de nacionalidad argentina, fue escritor, poeta y filósofo de fama mundial. Wilhelm Ostwald (1853-1932), de nacionalidad alemana, fue uno de los fundadores de la físicoquímica.
Lothar Beyer
doaj  

Doping of SnO2 with H atoms: An alternative way to attain n-type conductivity

AIP Advances, 2016
We propose an explanation for the origin of n-type electrical conductivity in SnO2 based on the results obtained from the DFT+U simulations. Two competitive intrinsic point defects, namely oxygen vacancy and hydrogen impurity, have been considered at ...
Luis Villamagua, Arvids Stashans, Manuela Carini, Frank Maldonado   +3 more
doaj   +1 more source

Fe-doped SnO2: A Quantum-chemical Approach [PDF]

Журнал нано- та електронної фізики, 2015
We report first-principles results obtained on Fe impurity incorporation into the SnO2 material. Different impurity concentrations have been taken into consideration when computing structural, electronic and magnetic properties of the material.
A. Stashans, P. Puchaicela
doaj  

A combined mechanical and fluid dynamic study of a medium power alkaline electrolyzer with prototype validation

Discover Electrochemistry
This study presents the design, simulation, and experimental validation of a medium-power alkaline electrolyzer with a focus on structural, fluidics, and seal-ing performance.
David Levitán, Pedro Muñoz, Tomás Falaguerra, Victoria Benavente Llorente, Melisa J. Gomez, Gabriel Correa Perelmuter, Esteban A. Franceschini   +6 more
doaj   +1 more source

Amphipterygium adstringens (cuachalalate) extract by supercritical CO2

Chemical Thermodynamics and Thermal Analysis
This study delineates the empirical findings derived from the extraction of Sarsasapogenin from Amphipterygium Adstringens, commonly known as Cuachalalate, utilizing supercritical carbon dioxide (CO2) as a solvent. The experiments were conducted within a
Miguel Gonzalo Arenas-Quevedo, Jesús Gracia-Fadrique   +1 more
doaj   +1 more source

Caracterización fisicoquímica de los siropes comerciales preparados a base de sacarosa

Tecnología en Marcha, 2005
La evaluación físicoquímica de 25 marcas de sirope permitió concluir, en lo referente a concentraciones de azúcares totales y sólidos totales, que la mayoría de los siropes analizados se encuentran dentro de los valores recomendados por la normativa ...
Maritza Rivera-Rodríguez, Carlos Herrera-Ramírez, Miriam Barquero-Quirós   +2 more
doaj  

RETRACTED: Melendez et al. Experimental and DFT Study of the Photoluminescent Green Emission Band of Halogenated (-F, -Cl, and -Br) Imines. <i>Molecules</i> 2019, <i>24</i>, 3304. [PDF]

Molecules
Melendez FJ, Castro ME, Portillo-Moreno O, Hernández-Téllez G, Moreno-Morales GE, Gutiérrez-Argüelles D, Palomino-Merino R, Rubio-Rosas E, Gutiérrez-Pérez R.   +8 more
europepmc   +1 more source

Data from the release kinetics of curcumin and piperine from native and modified cassava starch nanoparticles into simulated gastric media. [PDF]

Data Brief
Rosero-Posso WA, Murillo JAA, Villa CC.
europepmc   +1 more source

Corrigendum: Gamma-Glutamyl Cysteine Ligase Activity as a Proxy for Human T Cell Function and Drug-Induced Immunosuppression. [PDF]

Adv Sci (Weinh)
Fueyo-González F, Salto-Giron C, Ningoo M, Espinar-Barranco L, Salto R, Paredes JM, Herranz R, Orte A, Fribourg M, González-Vera JA.   +9 more
europepmc   +1 more source

Editorial

Educación Química, 2021
Aurora Ramos Mejía
doaj   +1 more source