The concept of self-efficacy is receiving increasing recognition as a predictor of health behavior change and maintenance. The purpose of this article is to facilitate a clearer understanding of both the concept and its relevance for health education research and practice. Self-efficacy is first defined and distinguished from other related concepts. Next, studies of the self-efficacy concept as...

In a number of distributed computing applications, messages must be transmitted on demand between processes running at different locations on the Internet. The end-to-end delays experienced by the messages have a significant “random” component due to the complicated nature of network traffic. We propose a method based on delay-regression estimation to achieve low end-to-end delays for message t...

We survey some recent results on modeling, analysis and design of congestion control schemes for the Internet. Using tools from convex optimization and control theory, we show that congestion controllers can be viewed as distributed algorithms for achieving fair resource allocation among competing sources. We illustrate the use of simple mathematical models to analyze the behavior of currently ...

according to behaviorists physical self-concept can be influence by interventional programs such as physical exercise or weight loss programs. more understanding of physical self-concept formation manner and its affectability ways by proper exercise programs, therefore, play an important role in achieving psychic health and desirable individual behavior. the purpose of the present study was to ...

In the field of management, the delay within projects is a prominent and contentious issue. Due to the fact that delay leads to cost and time over-runs, it is often the subject of litigation claims and creation of managerial tensions. In a bid to bring such delays under control and also to diminish managerial tensions, it is necessary to recognize and understand the following four concepts:"typ...

background: regular physical activity (pa) has been shown to reduce risk of morbidity and overall mortality. a study has displayed that achieving 10,000 steps/day is associated with important health outcomes and have been used to promote pa. pedometers are a popular tool for pa interventions in different setting. this study investigated the effects on pedometer‑based and self‑reported pa among ...

A study was set up to identify why patients delay seeking medical assistance after myocardial infarction. The study was performed in 100 consecutive patients with suspected acute myocardial infarction admitted to either the University Hospital of Wales, Cardiff, UK, or the Royal Jubilee Hospital, Victoria, British Columbia, Canada (50 patients from each centre). The main outcome measure was the...