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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)
PURPOSE The authors determine the safety and effectiveness of pericardial patch grafts in glaucoma implant surgery. METHODS A retrospective chart review was conducted on all patients who underwent a glaucoma implant procedure with the use of a pericardial patch graft to cover the subconjunctival portion of the tube at The New York Eye and Ear Infirmary(More)
Peer review of research proposals and articles is an essential element in R&D processes worldwide. 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)
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)
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)
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)
Peer review of research proposals and articles is an essential element in R&D processes worldwide. In most cases, each reviewer evaluates a small subset of the candidate proposals. The review board is then faced with the challenge of creating an overall " consensus " ranking on the basis of many partial rankings. In this paper we propose a branch and bound(More)
This research investigates the traffic police routine patrol vehicle (RPV) assignment problem on an interurban road network through a series of integer linear programs. The traffic police RPV's main task, like other emergency services, is to handle calls-for-service. Emergency services allocation models are generally based on the shortest path algorithm(More)