Objective-To determine whether non-mydriatic Polaroid retinal photography was comparable to ophthalmoscopy with mydriasis in routine clinic screening for early, treatable diabetic retinopathy.Design (X2=8-0; p<0-01). Camera screening underestimated numbers of microaneurysms (x2= 12-9; p<0 001) and haemorrhages (X2=7-4; p<001) and ophthalmoscopy underestimated hard exudates (X2=48-2; p

Having a nucleus darker than charcoal, comets are usually detected from Earth through the emissions from their coma. The coma is an envelope of gas which forms through the sublimation of ices from the nucleus, as the comet gets closer to the Sun. In the far ultraviolet, observations of comae have revealed the presence of atomic hydrogen and oxygen emissions. When observed over large spatial scales as seen from Earth, such emissions are dominated by resonance fluorescence pumped by solar radiation. Here we analyse atomic emissions acquired close to the cometary nucleus by the Rosetta spacecraft. In order to identify their origin, we undertake a quantitative multi-instrument analysis of these emissions by combining coincident neutral gas, electron, and spectroscopic observations together. We establish that the atomic emissions detected from Rosetta around comet 67P/Churyumov-Gerasimenko at large heliocentric distances result from the dissociative excitation of cometary molecules by accelerated solar-wind electrons (and not electrons produced from photo-ionisation of cometary molecules as suggested in past studies). We reveal their auroral nature. Similar to the discrete aurorae at Earth and Mars, this newly-discovered cometary aurora is driven by the interaction of the solar wind with the local environment. We highlight how OI 1356Å could be used as a tracer of solar-wind electron variability. The Rosetta spacecraft escorted comet 67P/Churyumov-Gerasimenko (referred as 67P hereafter) for more than two years 1, 2. Onboard, the Alice ultraviolet imaging spectrograph 3 detected Far UltraViolet (FUV) atomic hydrogen and oxygen emissions 4-7 from the cometary coma. Spec

People now have access to many sources of data about their health and wellbeing. Yet, most people cannot wade through all of this data to answer basic questions about their long-term wellbeing: Do I gain weight when I have busy days? Do I walk more when I work in the city? Do I sleep better on nights after I work out?We built the Health Mashups system to identify connections that are significant over time between weight, sleep, step count, calendar data, location, weather, pain, food intake, and mood. These significant observations are displayed in a mobile application using natural language, for example, "You are happier on days when you sleep more." We performed a pilot study, made improvements to the system, and then conducted a 90-day trial with 60 diverse participants, learning that interactions between wellbeing and context are highly individual and that our system supported an increased self-understanding that lead to focused behavior changes.

To address the alarming decrease in students in Rhode Island computer science programs and the under-representation of women and minorities, we have devised a program to introduce students to research in computer graphics, art and new media. This program integrates good mentoring practice and pedagogy, including problem-based learning. Special attention is paid to creating a cohort of students who come together every week to learn about the research process, and ethical and societal issues related to it. Each student takes a small project from the proposal stage, through design and implementation, to publication and presentation. We report on the first two years of the program.