Two groups of middle-aged men, one with and one without overt cardiovascular disease, were studied while they were taking part in a specially designed course of exercise therapy in a gymnasium. The "patients" group had at least two months pre-treatment to allow physical recovery and mental re-education before their initial very small test dose of exercise. Using short periods of progressive, ma...

In this paper we extend the basic model of Cournot competition to the case where both the demand function and the cost functions of each firm depend on the amounts produced by competitors. In this modified setting, proving existence of equilibria becomes harder. We develop a generalization of the theory of supermodular games in the context where individual decision variables take values in a to...

The authors tested specificity and the guidance hypothesis by examining the effects of continuous or discrete concurrent feedback during acquisition, retention, and transfer of a 90° phase offset bimanual coordination pattern. The authors tested both groups immediately following acquisition, 1 week later under retention conditions (i.e., identical feedback as acquisition) and under transfer con...

Fractures of the maxillofacial skeleton are very common which may not only lead to disfigurement of face, but are also a cause of neurosensory disturbances. Among various injuries, zygomatic complex fractures are next to nasal bone fractures; however, involvement of infraorbital nerve is almost a constant features which is manifested by neurosensory alteration in the areas supplied by this nerv...

Objective: The objective of this study is to examine ground kinetics early in stance while walking on a contaminated surface and assess the potential of kinetics to quantify risk of slipping. Background: Prior studies of slipping have dismissed early ground kinetic data, and therefore no prior literature has been able to assess the viability of using these data to quantify slip potential. Metho...

There are two valuable but highly technical descriptions. The first is a study of the sucking apparatus of a small brown fly found throughout the oriental region and of a genus closely allied to Musca. It is a very common blood sucking fly of cattle in Madras. The second study by Capt. Cragg is of the Hcematopota pluvialis, a gadfly or cleg of the family of Tabanidae. It attacks man, cattle or ...

Understanding why an individual acted in a certain way is of fundamental importance to the human factors community, especially when the choice of action results in an undesirable outcome. This challenge is typically tackled by applying retrospective interview techniques to generate models of what happened, recording deviations from a 'correct procedure'. While such approaches may have great uti...

Teamwork is becoming increasingly common in today's workplaces; however, little research has examined how well teams perform under sleep deprivation conditions. The purpose of the current study was to examine the effect of extended work under sleep deprivation conditions on team performance. A total of 24 participants were sleep deprived for 30 h and completed 16 h of sustained operations durin...