OBJECTIVE The aim of this study was to compare gaze behaviour during stair and ramp walking between patients with chronic peripheral vestibular hypofunction and healthy human subjects. METHODS Twenty four (24) patients with chronic peripheral vestibular hypofunction (14 unilateral and 10 bilateral) and 24 healthy subjects performed stair and ramp up and down walks at self-selected speed. The ...

Military operations in cold weather naturally pose many problems. One of the most important is related to immobilization of men for long periods of time, preventing them from indulging in even the smallest movements from fear of having their presence detected. The experimental work being reported is concerned with the reactions of soldiers sitting quietly for periods of 2 to 3 hours in environm...

Blindfolded, sitting subjects were asked to feel whether two bars were parallel or not. In 50% of the presentations the bars were parallel to each other. In all presentations either one or two bars were oriented vertically, horizontally, 45 degrees or 135 degrees. In this situation the best accuracy was found when the bars were vertically and horizontally oriented in space. The experiments were...

The purpose of this preliminary study was to examine the relationship between the emergence of independent sitting ability and the presence of underlying motor components (reflexes, automatic postural reactions, and flexion and extension movement patterns). Ten full-term, nonhandicapped infants were tested longitudinally for the presence of underlying motor components as they attained three per...

Finite element simulation of stretch flanging process was carried out in order to investigate the effect of process parameters on maximum thinning (%) in stretch flanging process. Influences of initial flange length, punch die clearance, width of sheet metal blank and blank holding force were investigated on maximum thinning (%). Finite element simulation was done using FEM software package ABA...

Vascular smooth muscle has the ability to exist in a state of maintained partial constriction. This state of partial activation is initiated and/or maintained by the mechanical effects of distending pressure acting on the vascular wall. The intrinsic ability of vascular smooth muscle to respond to these mechanical forces is referred to as the myogenic mechanism. Within the past decade the signa...

However brilliant a scientist is, however incisive their mind and however elegant their experiments, they must be able to communicate effectively. The ability to write fluently, to inspire an audience in a lecture hall, and to listen carefully and argue cogently face-to-face with a sceptic are all important. Maybe some people believe that it’s only important to impress the journal referees and ...

Space–time cube is often used as a visualization technique representing trajectories of moving objects in (geographic) space and time by three display dimensions (Hägerstrand 1970). Despite the recent advances allowing space–time cube visualization of clusters of trajectories, it is problematic to represent trajectory attributes. We propose a new time transformation—sequential ordering—that tra...