Results 21 to 30 of about 2,979,846 (222)
Strong defocusing of molecular reaction times results from an interplay of geometry and reaction control [PDF]
Text-book concepts of diffusion- versus kinetic-control are well-defined for reaction-kinetics involving macroscopic concentrations of diffusive reactants that are adequately described by rate-constants -- the inverse of the mean-first-passage-time to the reaction-event. In contradistinction, an open important question is whether the mean-first-passage-
arxiv +1 more source
Mean reaction times (RT) and the intra-subject variability of RT in simple RT tasks have been shown to predict higher-order cognitive abilities measured with psychometric intelligence tests.
Yoanna Schulz-Zhecheva+4 more
doaj +1 more source
Reaction extent or advancement of the reaction: A new general definition [PDF]
The concept of reaction extent (the progress of a reaction, advancement of the reaction, conversion, etc.) was introduced around 100 years ago. Most of the literature provides a definition for the exceptional case of a single reaction step or gives an implicit definition that cannot be made explicit. There are views that the reaction extent somehow has
arxiv +1 more source
This work is focused on the optimization of critical process parameters for preparation of boron-containing phenolic resin (B-containing PR), including the molar ratios of formaldehyde/phenol and potassium borate/phenol, reaction time; and measurement of
Yu Sun, Yuguo Sun
doaj +1 more source
Analyzing reaction times [PDF]
Reaction times (RTs) are an important source of information in experimental psychology. Classical methodological considerations pertaining to the statistical analysis of RT data are optimized for analyses of aggregated data, based on subject or item means (c.f., Forster & Dickinson, 1976).
Petar Milin, R. Harald Baayen
openaire +3 more sources
Can we characterize A-P/IAP behavioural phenotypes in people with chronic pain?
Two behavioural phenotypes in healthy people have been delineated based on their intrinsic attention to pain (IAP) and whether their reaction times (RT) during a cognitively-demanding task are slower (P-type) or faster (A-type) during experimental pain ...
Vaidhehi Veena Sanmugananthan+18 more
doaj +1 more source
In order to systematically evaluate perceptual anticipation between experts and non-experts for different kinds of combat sports, we needed to perform a comprehensive assessment.
Zhen Zhang+5 more
doaj +1 more source
Homogenization for Time-periodic KPP Reactions [PDF]
We prove homogenization for reaction-advection-diffusion equations with KPP reactions, in the time-periodic spatially stationary ergodic setting, and find an explicit formula for the homogenized dynamic. We also extend this result to models with non-local diffusion and KPP reactions.
arxiv +1 more source