A CARICATURE relating to the marriage of William Allen, F.R.S., (1770-1843) to Grizell Birkbeck, widow of Wilson Birkbeck, has recently come to light. It bears the title 'THE ATTRACTION OF GRAVITY !!!, the space being filled with a plough (Allen's pharmacy was in Plough Court, Lombard Street, London) and the subheading: 'Eye Natures walks shoot Folly as it flies'. This coloured engraving, by an...

An ingenious experiment has been performed by Allen and Fahey [J. Acoust. Soc. Am. 92, 178-188 (1992)], in which they attempted to estimate the gain of the cochlear amplifier by comparing responses to the 2 f1-f2 distortion product (DP) in the outer ear canal (otoacoustic emissions) and from an auditory-nerve fiber. Results were essentially negative: no evidence of cochlear amplification was fo...

8 James Mastro is with the Department of Professional Education at Bemidji State University, Bemidji, MN. Daryl E. Miller is a Special Education Director at Robbinsdale Area Schools in New Hope, MN. Carol Leitschuh is with the Dept. of Kinesiology at the University of Minnesota, Minneapolis. Barry Lavay is with the Department of Kinesiology and PE at California State University at Long Beach. P...

Allen et al.’s results depend on their inclusion of children whose family at the time of their grade retention is unknown, plus adopted and foster children whose selection process into families is unknown. Children whose family has been through upheavals or transitions are less likely to make good progress in school than children from stable families. Children raised by stable same-sex couples ...

Formal asymptotic expansions have long been used to study the singularly perturbed Allen-Cahn type equations and reaction-diffusion systems, including in particular the FitzHugh-Nagumo system. Despite their successful role, it has been largely unclear whether or not such expansions really represent the actual profile of solutions with rather general initial data. By combining our earlier result...

Complete List of Authors: Galli, Giulia; Kingston University, Department of Psychology Santarnecchi, Emiliano; Harvard University, Berenson-Allen Center for Non-Invasive Brain Stimulation Feurra, Matteo; National Research University Higher School of Economics, School of Psychology Bonifazi, Marco; Azienda Ospedaliera Universitaria Senese, Neurologia e Neurofisiologia Clinica Rossi, Simone; Azie...

A real aether model of the vacuum proposed by Allen Rothwarf(1) based upon a degenerate Fermion fluid, composed of polarizable particle-antiparticle pairs, leads to a big bang model of the universe where the velocity of light varies inversely with the square root of the cosmological time. Here this model is used to determine the time dependence of certain fundamental constants, i.e., permittivi...

We study the evolution of fronts in a bistable equation with time-delayed global feedback in the fast reaction and slow diffusion regime. This equation generalizes the Hodgkin-Grafstein and Allen-Cahn equations. We derive a nonlinear equation governing the motion of fronts, which includes a term with delay. In the one-dimensional case this equation is linear. We study the motion of one- and two...

In this paper, we give a classification of (finite or countable) א0categorical coloured linear orders, generalizing Rosenstein’s characterization of א0-categorical linear orderings. We show that they can all be built from coloured singletons by concatenation and Qn-combinations (for n ≥ 1). We give a method using coding trees to describe all structures in our list.