Biomedical subjects

P R Kent

Publications and source records attributed to P R Kent.

7 recordsLinked to original sources

PubMed2001

Evolution of III-V nitride alloy electronic structure: the localized to delocalized transition.

Addition of nitrogen to III-V semiconductor alloys radically changes their electronic properties. We report large-scale electronic structure calculations of GaAsN and GaPN using an approach that allows arbitrary states to emerge, couple, and evolve with composition. We find a novel mechanism of alloy formation where localized cluster states within the gap are gradually overtaken by a downwards moving conduction band edge, composed of both localized and delocalized states. This localized to delocalized transition explains many of the hitherto puzzling experimentally observed anomalies in III-V nitride alloys.

Journal Article↗

PubMed1978

Intraoperative photography A sterile system.

A practical, sterile system for intraoperative photography by the surgeon has been developed and evaluated in numerous operative procedures. No operative or postoperative complications have occurred. Emphasis is placed on simplicity, speed, and low cost, while high quality photographic results are consistently obtained, even by a surgeon who has no specialized skill as a photographer. Details of the procedure, results, and benefits over conventional systems are presented. The potential impact of widespread use of this system on medical education, research, medical jurisprudence, and other areas is discussed. Photographs of in situpathologic processes obtained by this system will make documentation more complete when no tissue is submitted for histologic examination or where gross findings and results or microscopic examination are disparate.

Documentation↗

PubMed1969