Results 91 to 100 of about 43,462 (184)
Small Science, Volume 6, Issue 5, May 2026.This work explores the influence of KOH (alkaline agent) and ZnCl2 (pore‐generating agent) on the one‐step chemical activation of wine grape pomace to produce Fe‐N‐C catalysts for the oxygen reduction reaction (ORR). The analyses reveal that KOH activation generates a highly porous structure with Fe‐Nx sites, leading to a larger electrochemically ...
Gloria Flores‐Gómez +9 more
wiley +1 more source
Advances in Materials Science and Engineering, 2014 This study shows the structural characterization of silica particles extracted from Stenotaphrum secundatum (St. Augustine) grass using an annelid-based biotransformation process. This bioprocess starts when St.
A. Espíndola-Gonzalez +4 more
doaj +1 more source
The X-ray outburst of the Galactic Center magnetar over six years of Chandra observations
, 2020 The magnetar SGR J1745-2900 discovered at parsecs distance from the Milky Way central black hole, Sagittarius A*, represents the closest pulsar to a supermassive black hole ever detected.
Baganoff, F. +18 more
core +1 more source
Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.Abstract Turbulent winds are a regular occurrence in planetary boundary layers. Turbulence affects mixing, energy fluxes and forcing on the surface environment. Energy injected into an atmosphere generates eddies of many scales down to a size where molecular viscous forces dominate, termed the Kolmogorov length scale.
Alexander E. Stott +13 more
wiley +1 more source
Processo Civilizador: apontamentos metodológicos na historiografia da Educação Física
Revista Brasileira de Ciências do Esporte, 2013 Este artigo tem como objetivo analisar a utilização do modelo elisiano em problemas de pesquisa no campo da História da Educação Física. Para isso, analisaram-se as características teóricas do processo civilizador de Elias.
Edivaldo Góis Junior +2 more
doaj +1 more source
The particle-vibration coupling and the pair strength in 120Sn and 132Sn [PDF]
EPJ Web of ConferencesThe pairing addition and removal modes in 120Sn and 132Sn are calculated including the effect of the coupling with the continuum and with the collective vibrations of the core.
Vigezzi Enrico, Barranco Francisco
doaj +1 more source
Aulas de educação física e inclusão: um estudo de caso com a deficiência física
Revista Educação Especial, 2012 http://dx.doi.org/10.5902/1984686X2284 Este estudo teve como objetivo descrever a participação de um aluno com deficiência física em aulas de Educação Física em uma turma do 2º ano do Ensino Fundamental de uma escola regular. Foram observadas sete aulas
Luciana Erina Palma +1 more
doaj +1 more source
La práctica docente en Educación Física
Escuela Abierta, 2019 El estudio-análisis que se presenta pretende dar información sobre los recursos metodológicos más usados en las clases de Educación Física. Así mismo, se realizó para propiciar la reflexión, sobre la didáctica aplicada, en el alumnado de la especialidad ...
J. Ignacio Manzano Moreno
doaj +2 more sources
Spectral flow of vortex shape modes over the BPS 2-vortex moduli space
Journal of High Energy PhysicsThe flow of shape eigenmodes of the small fluctuation operator around BPS 2-vortex solutions is calculated, as a function of the intervortex separation 2d. For the rotationally-invariant 2-vortex, with d = 0, there are three discrete modes; the lowest is
A. Alonso Izquierdo +3 more
doaj +1 more source
Remote SensingThis study exploits the combination of High-Frequency Coastal Radar (HFR) information with satellite-derived observations to characterize the patterns involved in the coastal countercurrents (CCCs) events in the Gulf of Cadiz (GoC), which is situated in ...
Claudia Fanelli +3 more
doaj +1 more source