Results 171 to 180 of about 1,379,799 (331)

Recent insights into the molecular mechanism of ubiquinol oxidation by cytochrome bc1

open access: yesFEBS Open Bio, EarlyView.
The review reflects on the mechanism of the catalytic reaction in cytochrome bc1: the electron bifurcation that involves the separation of two electrons derived from the quinol oxidation to opposite sides of the enzyme across the membrane. This review summarizes the long‐standing effort to understand the mechanism of quinol oxidation catalyzed by ...
Anna Wójcik‐Augustyn   +2 more
wiley   +1 more source

Caracterização Sinóptica dos Gradientes nos Canais da Ria de Aveiro. Parte II: Oxigénio, Clorofila e Zonação Ecológica

open access: yes, 2011
Os gradientes ecológicos nos estuários estão associados a gradientes de salinidade, temperatura e outras variáveis abióticas, apresentando, por isso, uma variabilidade espacial e temporal importante.
Rodrigues, M.   +7 more
core  

MODELACIÓN DE UN CONVERTIDOR DE SO2

open access: yesInvestigación & Desarrollo, 2009
Se han desarrollado dos modelos (bidimensional y unidimensional) para la simulación del convertidor de SO2 de una planta de sulfonación. Ambos modelos pueden manejarse empleando tanto ecuaciones cinéticas pseudohomogéneas globales, como ecuaciones ...
Luis Arteaga Weill   +1 more
doaj  

In vitro generation of regulatory T cells: A challenging tool for studying immune aging in humans

open access: yesFEBS Open Bio, EarlyView.
In vitro induction of human regulatory T cells using standard protocols generates suppressive, Foxp3‐expressing CD4+ T cells independently of TGF‐β supplementation and donor age. Regulatory T (Treg) cells play a key role in immune tolerance and homeostasis.
Lynn Muller   +3 more
wiley   +1 more source

Determinants of undergraduate bioscience engagement: Validating attendance barriers and classroom spatial behaviour across institutions

open access: yesFEBS Open Bio, EarlyView.
Student engagement extends beyond simple attendance. Across 891 bioscience students from three universities, attendance behaviour was associated mainly with structural influences, whereas classroom spatial behaviour reflected affective and sensory factors.
Nigel Page   +4 more
wiley   +1 more source

El método gravimétrico inverso utilizando anomalías de gradientes verticales de gravedad [PDF]

open access: yes, 1985
Se propone un método que permite resolver el problema gravimétrico inverso, utilizando anomalías de gradientes verticales de gravedad ag/az. Se analizan también sus condicionamientos.A method for resolving the gravimetric inverse problem, using anomalies
Huerta, Eduardo, Introcaso, Antonio
core  

ORDEN LOCAL EN HfN OBTENIDO POR TRABAJO MECÁNICO

open access: yesAnales (Asociación Física Argentina), 2013
Se produjeron polvos nanocristalinos de HfN por trabajo mecánico de polvos de Hf puro en atmósfera de N2, utilizando un molino vibratorio. Las fases obtenidas fueron caracterizadas por difracción de rayos X y el orden de corto alcance por correlaciones ...
M. A. Bab   +3 more
doaj  

Elevated Connectivity During Language Processing Is Associated With Cognitive Performance in SeLECTS

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Self‐Limited Epilepsy with Centrotemporal Spikes (SeLECTS) is associated with language impairments despite seizures originating in the motor cortex, suggesting aberrant cross‐network interactions. Here we tested whether functional connectivity in SeLECTS during language tasks predicts language performance.
Wendy Qi   +8 more
wiley   +1 more source

SMALL-SCALE ENVIRONMENTAL GRADIENTS IN A PINE-OAK FOREST COMMUNITY IN NUEVA COLONIA, MEZQUITIC, JALISCO, MEXICO

open access: yesPolibotánica, 2009
Nosotros exploramos cuáles variables ambientales se relacionan con la estructura de comunidades de pino-encino en Nueva Colonia, Mezquitic Jalisco, México.
Gregorio Nieves-Hernández   +4 more
doaj  

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