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Bike-sharing systems allow people to rent a bicycle at one of many automatic rental stations scattered in the city, use them for a short journey and return them at any other station in the city. Recently many cities around the world deployed such systems in order to encourage their citizens to use bicycles as an environmentally sustainable, socially(More)
Peer review of research proposals and articles is an essential element in R&D processes world-wide. Here we consider a problem which, to the best of our knowledge, has not been addressed until now: how to assign subsets of proposals to reviewers in scenarios where the reviewers supply their evaluations through ordinal ranking. The solution approach we(More)
Bike-sharing systems allow people to rent a bicycle at one of many automatic rental stations scattered around the city, use them for a short journey and return them at any other station in the city. A crucial factor for the success of such system is its ability to meet the fluctuating demand for bicycles and for vacant lockers at each station. In order to(More)
OBJECTIVE To evaluate the relationship between videokeratographic keratoconus screening programs and Orbscan II topography. DESIGN Prospective, observational case series and instrument validation study. PARTICIPANTS Sixty consecutive eyes with suspicious videokeratography (TMS-1, Tomey Technology, Waltham, MA) were evaluated before undergoing laser in(More)
Over the last few years, bike-sharing systems have emerged as a new mode of transportation in a large number of big cities worldwide. This new type of mobility mode is still developing, and many challenges associated with its operation are not well addressed yet. One such major challenge of bike-sharing systems is the need to respond to fluctuating demands(More)
UNLABELLED Improvements in phacoemulsification technology and instrumentation and intraocular lens materials and design have enabled cataract surgery to be performed through incisions smaller than 2.0 mm in external width. This evolution has occurred over time, with new challenges arising at each step of the decrease in incision size. This article reviews(More)
PURPOSE To report the presentation and subsequent management of a series of patients presenting with cosmetic iris implants. SETTING New York Eye and Ear Infirmary, New York, New York, USA. DESIGN Case series. METHODS In this evaluation of patients with NewColorIris cosmetic iris implants, data collected included patient demographics, visual acuity,(More)