Job evaluation and differentiation are crucial in scheduling. Since jobs can be represented by vectors of processing times, the average, standard deviation, and skewness of job processing times can be defined as the moments of their probability distribution. The first and the second moments of processing times are effective in sorting jobs (Dong et al., 2008), however they are not yet optimized...

The National Eye Hospital (NEH) is the largest referral centre of excellence for eye care in Sri Lanka. Patients from every part country come to NEH treating various diseases and hospital has been overburdened with problem congestion overcrowding. Congestion overcrowding patients are considered as a critical parameter evaluation healthcare quality, safety, productivity, patients’ satisfaction t...

Alterations of cellular function of Na+,K+-adenosine triphosphatase (ATPase; Na+-K+ pump) have been implicated in the pathophysiology of essential hypertension. Therefore, this aspect of red blood cell (RBC) Na metabolism was studied in black men with newly diagnosed, untreated essential hypertension (NEH) and a normotensive control group. RBC Na content, Na+-K+ pump number (ouabain binding sit...

We describe a healthy 69-year-old Japanese man with generalized neutrophilic eccrine hidradenitis (NEH). He visited our outpatient clinic with a 15-year history of disseminated pruritic papules on his trunk and extremities; the eruptions, however, were limited to the summer months. Histological findings reveal a dense accumulation of neutrophils around the sweat glands with degenerated secretar...

This paper presents a bottleneck-based methodology to solve scheduling problem of M1,M2,M3,M4,M3,M4 re-entrant flow shop where M1 and M4 have high tendency of being the dominant machines. Two generalised makespan algorithms using bottleneck approach were developed for the identified bottleneck. Each algorithm has specific correction factor which was used to ensure the accuracy of the makespan c...

To have a quality multimedia presentation through networks, its presentation lag needs to be controlled. One way to reduce the lag is to prefetch the media objects before their due dates. This paper explores techniques for optimizing the object sequence in a prefetch-enabled TV-like presentation. An optimal solution is the one with which the presentation lag is minimized. We formulate the probl...