introduction: the success of a health system depends on the accessibility and the quality of health services it provides. one major indicator of service quality is peoples satisfaction from the service. in this article, healthcare availability and satisfaction of people in 17th zone of tehran is investigated. methods: population research center has performed a survey in 17th zone of tehran to i...

BACKGROUND Butchering is often associated with high rates of work-related musculoskeletal disorders (WRMSDs). However, published work on the prevalence of WRMSDs among butchers in Nigeria is scarce. This is important because meat processing practices differ across geographical and cultural locations. This study was therefore aimed at analyzing WRMSDs among butchers in Kano metropolis. METHODS...

The Multiple-Try Metropolis is a recent extension of the Metropolis algorithm in which the next state of the chain is selected among a set of proposals. We propose a modification of the Multiple-Try Metropolis algorithm which allows for the use of correlated proposals, particularly antithetic and stratified proposals. The method is particularly useful for random walk Metropolis in high dimensio...

In this paper we define and study new directional Metropolis–Hastings algorithms that propose states in hyperplanes. Each iteration in directional Metropolis–Hastings algorithms consist of three steps. First a direction is sampled by an auxiliary variable. Then a potential new state is proposed in the subspace defined by this direction and the current state. Lastly, the potential new state is a...

We investigate the use of adaptive MCMC algorithms to automatically tune the Markov chain parameters during a run. Examples include the Adaptive Metropolis (AM) multivariate algorithm of Haario et al. (2001), Metropolis-within-Gibbs algorithms for non-conjugate hierarchical models, regionally adjusted Metropolis algorithms, and logarithmic scalings. Computer simulations indicate that the algori...

The study examined the quantity and quality of infrastructure in Ibadan, Nigeria with a view to using information to providing policy guidelines for sustainable infrastructural development. Using stratified sampling technique, a total of fifteen wards from the five local government areas in Ibadan metropolis were selected for study. The selection of all the local government areas is based on th...

Electronic system design has been becoming more and more complex. It is very common to have dozens of IP modules in a single system. To quickly simulate the system is becoming a challenge. On the other hand, computing facilities, on which people run actual simulation, are becoming more and more powerful by having more powerful single processor and by building parallel machines. However, there i...

W orld Environment Day 2005 might be just the moment to highlight some pristine location that showcases what we most value about our environment: clean air, pure water, uncluttered landscapes, and rich plant and animal life. But instead, the United Nations (UN) Environment Programme turns to a city, San Francisco, as the focus for its celebrations. The reason is simple: Cities are where people ...