Material and methods Twenty patients with hemiplegia due to vascular causes underwent gait analysis (by the F-Scan system). All patients had steady neurological status and were able to gait independently more than 8 m. The following vertical ground reaction force variables were measured: the first peak force during early stance(F1Y) and the percent stance at which it occurred(F1X); the second p...

Abstract Blast loading and its interaction with structures is a complex phenomenon even in the simplest of cases and modelling its effects is a non-trivial task. This complexity is increased when dealing with long duration blast due to the drag loads associated with the dynamic pressure. This paper establishes a scientific benchmark for the debris distribution modelling of masonry panels as the...

This paper is a brief introduction to some of the well known fundamental engineering properties of homogeneous isotropic linear elastic materials. It specifically shows the relationships between different elastic moduli. It covers some of the extensive (but not so well known) relationships between the various moduli of these materials and also illustrates the importance of parameters such as Po...

Due to the nonlinear nature of the inter-particle contact, granular chains made of elastic spheres are known to transmit solitary waves under impulse loading. However, the localized contact between spherical granules leads to stress concentration, resulting in plastic behavior even for small forces. In this work, we investigate the effects of plasticity in wave propagation in elasto-plastic gra...

In response to a magnetic field impulse, magnetostrictive magnetoelastic sensors mechanically vibrate. These vibrations can be detected in several ways: optically from the amplitude modulation of a reflected laser beam, acoustically using a microphone or hydrophone, and by using a pickup coil to detect the magnetic flux emitted from the sensor. Earlier work has shown that the resonant frequency...

The regulation of serotonin synthesis in the central nervous system seems to involve mechanisms which control the intracellular concentration of tryptophan and the hydroxylation step . Numerous situations are reviewed which demonstrate that changes in the concentration of free tryptophan in plasma and/or in the uptake of the amino acid in brain may alter tryptophan concentration and 5-HT synthe...

Experimental Study of degradation of oil impregnated paper has attracted enormous attention over the past 20 years worldwide. Outside the controlled conditions of the laboratory, however the real situation is more complex due to loading change, ambient temperature, fluctuation and sudden impulse impact. Therefore, interests in forensic examinations of scrapped old transformers have increased in...

Drosophila is a powerful model for neuroscientists, but physiological techniques have not kept pace with advances in molecular genetics. We introduce a reliable assay for intracellular calcium dynamics in Drosophila larval motor neuron terminals, and a new physiological solution that improves the longevity of the larval preparation. By loading calcium indicators into motor neuron terminals thro...

The far-field response of a bi-axially pre-stressed incompressible elastic plate, subjected to an instantaneous edge impulse loading, is studied using a refined long-wave low-frequency theory. The second order correction introduced by the refined theory is demonstrated to smooth the discontinuity associated with one of the wave fronts predicted by the leading order hyperbolic theory. The charac...