منابع مشابه
Clearing the trichiasis backlog: experiences in Amhara, Ethiopia
Globally, there were estimated to be around 7.3 million people in 2009 with trachomatous trichiasis (TT).1 The World Health Organization (WHO) recommends surgery to reduce the risk of sight loss.2 In the last decade, only about 50% of the annual global surgical targets have been achieved.3 At the current rate, it has been estimated that the trichiasis backlog would not be adequately addressed u...
متن کاملClearing the Backlog: Trichiasis Surgeon Retention and Productivity in Northern Ethiopia
BACKGROUND In 2006 there were an estimated 645,000 people in Amhara, Ethiopia, with trachomatous trichiasis (TT) who needed surgery. Despite an extensive integrated eye care worker training programme (IECW) and robust support for TT surgical services, productivity has not reached targets. We investigated why surgeon productivity was below target. METHODOLOGY/PRINCIPAL FINDINGS Confidential in...
متن کاملThe Minimum-Backlog Problem
We introduce and study the minimum-backlog problem (MBP). The MBP arises in sensor networks and is related to the classic k-server problem. It can be understood as a 2-person game played on a graph G = (V, E). The “player” moves along the edges of the graph; the opponent is the “adversary.” The game proceeds in timesteps. In each timestep the adversary pours a total of one unit of water into “c...
متن کاملOptimal Backlog in the Plane
Version • n cups – not on a graph nor in the plane • Timesteps – adversary pours total 1 of water – player empties any cup • Deamortization [Dietz,Sleator’87] – Empty-the-fullest: Hn An Extension: (τ,k)-game • n cups – not on a graph nor in the plane • Timesteps – adversary pours total τ of water – player empties k fullest cups • After r steps – backlog in any cup is ≤ Hr • τ / k • independent ...
متن کاملEstimation of Statistical Bandwidth through Backlog Measurement
Bandwidth estimation in wireless networks is difficult due to the intrinsic randomness of the wireless links. In this paper, we propose a network calculus based method for statistical bandwidth estimation in wireless networks with random service, where the bandwidth is expressed in terms of a statistical service curve with a violation probability. By injecting probing packet trains, the statist...
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ژورنال
عنوان ژورنال: British Journal of Ophthalmology
سال: 1987
ISSN: 0007-1161
DOI: 10.1136/bjo.71.2.158