Stephen Downs

Learn More
QUESTIONS What is the intra-rater and inter-rater relative reliability of the Berg Balance Scale? What is the absolute reliability of the Berg Balance Scale? Does the absolute reliability of the Berg Balance Scale vary across the scale? DESIGN Systematic review with meta-analysis of reliability studies. PARTICIPANTS Any clinical population that has(More)
Social insects use both environmental and heritable (genetic) recognition cues when discriminating between nestmates and non-nestmates. In honeybees, Apis mellifera, both types of recognition cues are used, although their relative importance depends upon context, experimental design and environmental factors. Our aim in this study was to investigate which(More)
Project HealthDesign, a multi-year, multi-site project sponsored by the Robert Wood Johnson Foundation with additional support from the California HealthCare Foundation, is designed to stimulate innovation in personal health records (PHRs). Project HealthDesign teams employed user-centered design processes to create designs and prototypes of computer-based(More)
Honeybee guards do not use food-derived odors to recognize non-nest mates: a test of the Odor Convergence hypothesis Honeybee (Apis mellifera) colonies rob honey from each other during periods of nectar shortage. Persistent robbing can kill weak colonies. Primarily responsible for preventing robbing are guard bees. Previous research has shown that the(More)
Project HealthDesign is a national program designed to rethink the power and potential of personal health to rethink the power and potential of personal health records. It intends to stimulate development of new personal health management tools by harnessing the content of the personal health record and making advice, recommendations, and data-tracking(More)
Project HealthDesign is a country-wide initiative in the United States designed to stimulate innovation in personal health records (PHRs). Nine grantee teams engaged in an 18-month long design and prototyping process. Two teams addressed the needs of children and adolescents; three created novel approaches to help adults prevent or manage metabolic(More)
  • 1