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In this paper we focus on design of a class of distributed embedded systems that primarily perform real-time controlling tasks. We propose a two-layer component model for design and development of such embedded systems with the aim of using component-based development for decreasing the complexity in design and providing a ground for analyzing them and(More)
The incidence of a cardiovascular disease (CVD) was explored in a consecutive sleep clinic cohort of 182 middle-aged men (mean age, 46.8 +/- 9.3; range, 30-69 years in 1991) with or without obstructive sleep apnea (OSA). All subjects were free of hypertension or other CVD, pulmonary disease, diabetes mellitus, psychiatric disorder, alcohol dependency, as(More)
One purpose of this study was to determine whether the half time of the oxygen consumption (VO2) response at the onset of exercise varies with work intensity. Fifteen subjects performed 5 min of bicycle ergometer exercise across a range of relative work loads with VO2 determined continuously via computer analysis. The results revealed that the half time of(More)
The component-based strategy aims at managing complexity, shortening time-to-market, and reducing maintenance requirements by building systems with existing components. The full potential of this strategy has not yet been demonstrated for embedded software, mainly because of specific requirements in the domain, e.g., those related to timing, dependability,(More)
Management of extra-functional properties in component models is one of the main challenges in the component-based software engineering community. Still, the starting point in their management, namely their speciication in a context of component models is not addressed in a systematic way. Extra-functional properties can be expressed as attributes (or(More)
Caprine arthritis-encephalitis virus was isolated from goat milk and transmitted most efficiently to kids through both milk and colostrum. In addition, it appeared that transmissions through other secretions of the doe occurred, but were less important than transmission in milk and colostrum. Intrauterine infection may have occurred in 2 of 32(More)
STUDY OBJECTIVE To address the influence of gender and obstructive sleep apnea (OSA) on development of diabetes mellitus (DM) in a sleep clinic cohort. DESIGN A longitudinal observational study. PARTICIPANTS A consecutive middle-aged (30-69 years) sleep clinic cohort from 1991 (n=318; 254 men, 64 women) with eligible baseline characteristics, clinical(More)
The specification of complex systems, such as software, requires well-defined languages and methods. In the case of real-time systems, where temporal correctness must be achieved in addition to functional, descriptions of time dependant behaviour must be expressable within the specification language. This report presents a selection of languages and methods(More)
BACKGROUND Fluid retention with oedema is an important clinical problem in advanced chronic obstructive pulmonary disease (COPD). OBJECTIVE The aim of this study was to investigate cardiovascular, hormonal, renal and pulmonary function data and their possible relation to fluid retention in COPD. METHODS The study group consisted of 25 stable outpatients(More)