Results 31 to 40 of about 5,934,007 (291)

Reaction-diffusion with a time-dependent reaction rate: the single-species diffusion-annihilation process

open access: yes, 2004
We study the single-species diffusion-annihilation process with a time-dependent reaction rate, lambda(t)=lambda_0 t^-omega. Scaling arguments show that there is a critical value of the decay exponent omega_c(d) separating a reaction-limited regime for ...
ben-Avraham D   +11 more
core   +2 more sources

The effect of distance on reaction time in aiming movements [PDF]

open access: yes, 2007
Target distance affects movement duration in aiming tasks but its effect on reaction time (RT) is poorly documented. RT is a function of both preparation and initiation.
Andrew D. Wilson   +27 more
core   +1 more source

Reaction Time Improvements by Neural Bistability

open access: yesBehavioral Sciences, 2019
The often reported reduction of Reaction Time (RT) by Vision Training) is successfully replicated by 81 athletes across sports. This enabled us to achieve a mean reduction of RTs for athletes eye-hand coordination of more than 10%, with high statistical ...
Henk Koppelaar   +5 more
doaj   +1 more source

Large-time asymptotics of moving-reaction interfaces involving nonlinear Henry's law and time-dependent Dirichlet data [PDF]

open access: yes, 2013
We study the large-time behavior of the free boundary position capturing the one-dimensional motion of the carbonation reaction front in concrete-based materials.
Aiki, Toyohiko, Muntean, Adrian
core   +4 more sources

Time evolution of the reaction front in a subdiffusive system [PDF]

open access: yes, 2007
Using the quasistatic approximation, we show that in a subdiffusion--reaction system the reaction front $x_{f}$ evolves in time according to the formula $x_{f} \sim t^{\alpha/2}$, with $\alpha$ being the subdiffusion parameter.
D. ben-Avraham   +8 more
core   +1 more source

Outcomes of Live Virus Vaccination in Patients With Vascular Anomalies Being Treated With Sirolimus

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Live vaccination in patients with vascular anomalies (VA) receiving sirolimus remains controversial due to immunosuppressive effects and theoretical risks. Procedure This single‐center retrospective study included patients with VA less than 4 years old at the start of sirolimus therapy who were incompletely vaccinated.
Svatava Merkle   +5 more
wiley   +1 more source

Reaction Time Predicts Brain–Computer Interface Aptitude

open access: yesIEEE Journal of Translational Engineering in Health and Medicine, 2018
There is evidence that 15–30% of the general population cannot effectively operate brain–computer interfaces (BCIs). Thus the BCI performance predictors are critically required to pre-screen participants.
Sam Darvishi   +4 more
doaj   +1 more source

Fractional Reaction-Diffusion Equation

open access: yes, 2003
A fractional reaction-diffusion equation is derived from a continuous time random walk model when the transport is dispersive. The exit from the encounter distance, which is described by the algebraic waiting time distribution of jump motion, interferes ...
Seki, Kazuhiko   +2 more
core   +1 more source

Rheological and Mechanical Gradient Properties of Polyurethane Elastomers for 3D-Printing with Reactive Additives [PDF]

open access: yes, 2019
Polyurethane (PU) elastomers with their broad range of strength and elasticity are ideal materials for additive manufacturing of shapes with gradients of mechanical properties.
Auhl, Dietmar   +4 more
core   +1 more source

Pulmonary Dysfunction Is Associated With Sleep Study Abnormalities in Children With Sickle Cell Disease: A Multicenter Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Pulmonary dysfunction and sleep abnormalities are common in children with sickle cell disease (SCD) and are associated with worse clinical outcomes. Whether spirometry abnormalities are associated with polysomnography (PSG) findings remains unclear.
Ammar Saadoon Alishlash   +4 more
wiley   +1 more source

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