Robert F. Walker

Learn More
BACKGROUND New tuberculosis (TB) vaccines are being developed to combat the global epidemic. A phase IIb trial of a candidate vaccine, MVA85A, was conducted in a high burden setting in South Africa to evaluate proof-of-concept efficacy for prevention of TB in infants. OBJECTIVE To describe the study design and implementation lessons from an infant TB(More)
Restrictive design rules (RDRs) have been introduced as a simplified layout optimization method to better enable resolution enhancement techniques in ultra-deep submicron designs (16). In this paper, we study the technology migration problem for designs with strong RET-driven layout restrictions, i.e., RDR constraints, which require devices (gates) to be(More)
Wear rate and debris are key problems to implanted metal-on-metal hip joints. Surface texture on bearing surfaces is reported to increase tribological performances. Research on the translation of this technology to metal-on-metal hip joint for reduction of friction, wear rate and debris generation is limited. The aim of this study was to investigate, by(More)
Several recent studies have presented evidence that significant induced earthquakes occurred in a number of oil-producing regions during the early and midtwentieth century related to either production or wastewater injection. We consider whether the 21 July 1952 Mw 7.5 Kern County earthquake might have been induced by production in the Wheeler Ridge oil(More)
INTRODUCTION Given the effects of cold water immersion on breath-hold (BH) capabilities, a practical training exercise was developed for military/paramilitary personnel completing a helicopter underwater egress training (HUET) program. The exercise was designed to provide firsth and experience of the effects of cold water exposure on BH time. METHODS(More)
Title of Dissertation: COLD COLLISIONS IN AN OPTICALLY BRIGHTENED SODIUM BEAM William Charles DeGra enreid, Doctor of Philosophy, 2000 Dissertation directed by: Professor John Weiner Chemical Physics Program Cold collisions have proved to be a fertile area of research since the development of the magneto-optical trap (MOT), but the spatial averaging of(More)
Many complex unsteady mechanisms are thought to facilitate the high efficiency and agility commonly observed in small biological flyers. One of these, the flexible clap and fling maneuver, has not been extensively studied; an experimental characterization is the focus of this work. The clap-fling mechanism is approximated with a single flexible membrane(More)
Introduction.Staphylococcus pseudintermedius, an opportunistic pathogen of dogs and cats, is rarely reported to cause infection in humans. Here, we describe a case of severe skin infection caused by S. pseudintermedius, in a 47-year-old male, a dog owner; to the best of our knowledge, this is the first such case reported from Scotland. Case presentation.(More)