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  • Author or Editor: P. Spyrou x
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Abstract  

A concept of finite coverings of continua with a linear order of their members is given. A characterization is obtained of hereditarily locally connected continua which have a finite supremum of cardinalities of the considered coverings.

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Abstract  

The potential of using a commercially available 1 Mbit dRAM as a neutron detector within an improved neutron area monitor has been studied. The response of three manufacturers 1 Mbit dRAMs to low energy alpha particles from 148Gd has been determined. Their use as a thermal neutron detector, by the application of a charged particle converter to the die surface, was also examined. Whilst it was demonstrated that they responded to low energy alpha particles their sensitivity to neutrons was found to be too low for them to be used within a neutron area monitor.

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Abstract  

Very few publications have quoted differences between the same regions in both the right and left hemispheres of the human brain. It may be possible that that the two hemispheres have different trace elemental concentrations, since it is known that they both have different functions. In this study, three brain regions from both the right and left hemispheres of the cortex have been sampled from five elderly individuals (three 'normal' and two Alzheimer's disease) and their elemental concentrations have been determined by instrumental neutron activation analysis (INAA).

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