Jim Peter's Collapse in the 1954 Vancouver Empire Games marathon

On 7 August 1954 the world 42km marathon record holder, Jim Peters, collapsed repeatedly during the final 385 metres of the British Empire and Commonwealth Games marathon held in Vancouver, Canada. It has been assumed that Peters’s collapsed from heatstroke because he ran too fast and did not drink during the race held in windless, cloudless conditions with a dry bulb temperature of 28°C. Review of his hospital records recently made available to the authors indicates that Peters may not have suffered from exertional heatstroke, which classically produces a rectal temperature of > 42°C, cerebral effects and a usually fatal outcome without vigorous active cooling. Thermal balance calculations also suggest that the environmental conditions were probably not sufficiently severe to induce heatstroke even at the high rate of energy expenditure sustained by Peters for 2 hours and 22 minutes. Although Peters was unconscious on admission to hospital approximately 60 minutes after he was removed from the race, his rectal temperature was 39.4°C and he recovered fully even though he was managed conservatively and was not actively cooled. We propose that Peters collapse was more likely due to the combination of hyperthermia-induced fatigue which caused him to stop running; the onset of exercise-associated postural hypotension as a result of a low peripheral vascular resistance immediately he stopped running; the combined cerebral effects of hyperthermia, hypertonic hypernatraemia associated with dehydration and perhaps an undiagnosed hypoglycaemia. But none of these conditions should have caused a prolonged period of unconsciousness, raising the possibility that Peters may have been suffering from a transient encephalopathy, the exact nature of which is not currently recognized

Automatic Insertion of DPA Countermeasures

Differential Power Analysis (DPA) attacks find a statistical correlation between the power consumption of a cryptographic device and intermediate values within the computation. Randomization of intermediate values breaks statistical dependence and thus prevents such attacks. The current state of the art in countermeasures involves manual manipulation of low-level assembly language to insert random masking. This paper introduces an algorithm to automate the process allowing the development of compilers capable of protecting programs against DPA

Umweltindikatoren und globale Kooperation

Available from Bibliothek des Instituts fuer Weltwirtschaft, ZBW, Duesternbrook Weg 120, D-24105 Kiel W 189 (96.403) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Environmental Indicators on Selected Issues for Latin America and the Caribbean

This report represents a selection and analysis of key indicators that bear upon the particular set of issues that the IDB borrowing member countries are facing at this point. Some of the indicators presented in this report document the main pressures caused by economic development on the environment

Environmental Indicators on Selected Issues for Latin America and the Caribbean

This report represents a selection and analysis of key indicators that bear upon the particular set of issues that the IDB borrowing member countries are facing at this point. Some of the indicators presented in this report document the main pressures caused by economic development on the environment.Trade Agreements, Integration & Trade, Water Supply and Sanitation, Environmental Policy, Globalization & Regionalization, Environmental Management