Nuclear proliferation, because of its ability to threaten human survival, is fast coming to overshadow all other global issues.1-7 When the renowned explorer Jacques-Yves Cousteau addressed the UN General Assembly in 1976 he observed that atomic power had "reshaped what we may fear, what we may dream, how we live and how we may die." He was emphasising as many before him had done that since Aug...

For a recent student conference, the authors developed a day-long design problem and competition suitable for engineering, mathematics, and science undergraduates. The competition included a cryptography problem, for which a workshop was run during the conference. This paper describes the competition, focusing on the cryptography problem and the workshop. Notes from the workshop and code for th...

Cold War legacies pose significant challenges for heritage management and interpretation at landscape scale. This paper explores an area where overlap, in terms of how postcolonial attitudes usually require something to be done with these sites. We argue that this need not the case a ‘rest state’ can important stage site’s lifecycle. focus particular on United States Ground-launched Cruise Miss...

BACKGROUND Penetrating chest trauma is a leading cause of admission to South African emergency departments. The resultant pneumo-/haemothoraces are currently routinely treated by means of standard underwater bottle drainage. A South African company, Sinapi Biomedical, recently launched the Xpand chest drain. This device incorporates a one-way valve with a fluid reservoir and permits the detecti...

The aim of the article was to determine long-range assets effectivity dependence on method their employment. To achieve this goal, mathematical model combat employment based theory Markov processes with continuous time and discrete states improved. In contrast existing ones, improved includes a state in which asset launches second missile strike from firing position previous launched. This prov...

Ballistic missiles and Anti-Satellite (ASAT) weapons operate using similar technological means but not with the same level of technology or engineering maturity. ASATs require a more sophisticated systems engineering and integration requirements to be able to adapt to the challenges posed by an ASAT intercept. The main difficulty arises from the requirements for detection in space and the high ...