Several studies have demonstrated an elevated prevalence amongst professionals of mycobacterium tuberculosis, both in the rate of infections and illness. This study was carried out in a School Hospital in Campo Grande, MS, Brazil, aiming to establish the prevalence of infection with Mycobacterium tuberculosis. The results of the analysis of 194 subjects showed an overall positivity for the tube...

let denote the unit circle in the complex plane. given a function , one uses t usual (harmonic) poisson kernel for the unit disk to define the poisson integral of , namely . here we consider the biharmonic poisson kernel for the unit disk to define the notion of -integral of a given function ; this associated biharmonic function will be denoted by . we then consider the dilations for and . the ...

To warrant high reliability of key components of systems, stand-by units are used. If such a component fails and at least one not failed stand-by unit remains, it operates instead of the key component. If this one fails, the second stand-by unit is used and so on until the last stand-by unit fails. We suppose that switching is instantaneous and there are no repairs. If the stand-by units are fu...

OBJECTIVES The objectives of this study were to determine the bronchial mucus transport velocities in ventilated ICU patients and to study the possible role of impaired mucus transport in the development of retention of secretion and pneumonia. DESIGN The patients were studied prospectively in a convenience sample trial. SETTING The study took place at a university hospital. PATIENTS Thir...

BACKGROUND The oral route for tracheal intubation can interfere with some maxillofacial surgical procedures. At the same time, the nasal route can be contraindicated or impossible. Tracheostomy is the usual solution in these circumstances, but it carries a high incidence of complications. We tested the submandibular route for tracheal intubation as an alternative to tracheostomy in such situati...

We call a local vector lattice any vector lattice with a distinguished positive strong unit and having exactly one maximal ideal (its radical). We provide a short study of local vector lattices. In this regards, some characterizations of local vector lattices are given. For instance, we prove that a vector lattice with a distinguished strong unit is local if and only if it is clean with non no-...