Nalaka Gooneratne

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BACKGROUND Little is known about the social determinants of sleep attainment. This study examines the relationship of race/ethnicity, socio-economic status (SES) and other factors upon sleep quality. METHODS A cross-sectional survey of 9,714 randomly selected subjects was used to explore sleep quality obtained by self-report, in relation to socioeconomic(More)
PURPOSE Excessive daytime sleepiness (EDS) in older adults is associated with obstructive sleep apnea, falls, reduced quality of life, and mortality. The Epworth Sleepiness Scale (ESS) is widely used to assess sleepiness. However, EDS assessment with the ESS may not be accurate in older adults. We aimed to (1) describe the responsiveness of nondemented(More)
BACKGROUND The prevalence of sleep-related breathing disorder (SRBD) and insomnia symptoms increases considerably with advancing age, but little is known about their cooccurrence and their effects on daytime functioning when present together. METHODS Older adults with (cases, n = 99) and without (controls, n = 100) symptoms of insomnia underwent 2 nights(More)
Web service discovery requires matching techniques for comparing and selecting web service descriptions based on user constraints. Semantic-based approaches achieve higher recall than other approaches (such as syntax-based approaches), because they employ ontological reasoning mechanisms to match syntactically heterogeneous descriptions. However, existing(More)
Service discovery and composition techniques require a careful and accurate specification of the functional and behavioural descriptions of services. Otherwise, the located services may not provide the requested functionality and composite services may incorporate services that are incompatible and uncomposable. This paper proposes two formalisms for(More)
Older adults have high prevalence rates of insomnia symptoms, yet it is unclear if these insomnia symptoms are associated with objective impairments in sleep. We hypothesized that insomnia complaints in older adults would be associated with objective differences in sleep compared with those without insomnia complaints. To test this hypothesis, we conducted(More)
Current web service composition techniques compose web services based on their functionality. They do not consider user constraints. We propose a semantic based composite matching technique that composes web services according to three types of constraints. Local constraints the apply to individual web services, global constraints that apply to multiple web(More)
OBJECTIVES This study examined the effects of high-intensity resistance strength training and walking (E), individualized social activity (SA), and resistance training and walking combined with social activity (ESA) on everyday function in long-term care (LTC) residents and explored the relationship between change in everyday function and change in sleep.(More)