Need for designing certain important structures to resist blast loads is increasing in the recent past years, due to the enhanced terrorist operations. A bomb explosion can cause very serious damage on the building's external and internal structural frames. Collapse of one structural member in the vicinity of the source of explosion, may then create critical stress redistributions and lead to c...

INTRODUCTION THE CLASSIFICATION of the eels of the family Ophichthidae is, as M yers and Storey (1939: 156) put it, in the utmost confusion . Their suggested solution, with which I heartily concur, is a sound anatomical study of all the included genera. This cannot be undertaken in the present paper as the family is of circum tropic al distribution and many of the genera are unavailable to me. ...

Concentrically braced frames and eccentrically braced frames are efficient seismic resistant systems but they are generally prone to develop storey collapse mechanisms. As underlined in some previous papers with regard to eccentrically braced frames, this tendency depends on the overstrength factors and damage distribution capacity factors resulting from the use of common design procedures. In ...

To limit the response of structures during external disturbances such as strong winds or large seismic events, structural control systems can be used. In the structural engineering eld, attention has been shifted from active control to semi-active control systems. Unlike active control system devices, semiactive devices are compact, have e cient power consumption characteristics and are less ex...

South Africa has some regions which are susceptible to moderate seismic activity. A peak ground acceleration of between 0.1g and 0.15g can be expected in the southern parts of the Western Cape. Unreinforced Masonry (URM) is commonly used as a construction material for 2 to 5 storey buildings in underprivileged areas in and around Cape Town. URM is typically regarded as the material most vulnera...

The ability to suppress basal metabolic rate and enter a hypometabolic or dormant state is a lifesaver for many animals. When food is unavailable or environmental conditions too stressful to maintain normal life, many species reduce their energy consumption and, thereby, extend the time that fixed reserves of endogenous metabolic fuel stores can sustain life. Metabolic suppression can come in v...

INTRODUCTION The prognosis in the case of head injury may be different, Serious head injures are the leading causes of the death. In the remaining cases, the child recovers entirely, or disturbances of the cognitive and motor activities remain. The aim of the work is to show neurological and ophthalmological complications at the child after the fali down from the fifth storey. CASE REPORTS A ...