background: radiation-induced lung toxicity is an important dose-limiting toxicity in lung cancer radiotherapy, for which there are no generally accepted predictive factors. this study seeks to identify risk factors associated with the development of severe radiation-induced lung toxicity using clinical and dosimetric parameters. methods: we reviewed the medical records of 54 patients with hist...

Dr. James Allen Olson helped us to define the role of beta-carotene in human health by categorizing these as “functions, actions and associations.” In the last decade, significant research has shown that betacarotene acts as an antioxidant in biologically relevant systems, affects several aspects of human immune function and higher intake/serum levels are associated with improvements in certain...

Let S be a topological semigroup acting on a topological space X. We develop the theory of (weakly) almost periodic functions on X, with respect to S, and form the (weakly) almost periodic compactifications of X and S, with respect to each other. We then consider the notion of an action of Son a Banach space, and on its dual, and after defining S-invariant means for such a space, we give a...

conclusions this report presents a new method for lung isolation in specific cases and in the absence of certain equipment. case presentation a 41-year-old woman with a history of pharyngo-laryngo-oesophagectomy (plo) and tracheostomy was a candidate for thoracic duct ligation because of chylothorax. since the patient had tracheostmy stomal stenosis, two cuffed tracheal tubes (internal diameter...

Introduction: Oxygen-enhanced MRI (O2-MRI) has been successfully applied for the visualization and (semi-)quantitative measurement of pulmonary ventilation and lung function [1–6]. The inhalation of pure oxygen (O2) decreases the longitudinal relaxation time, T1, of blood, which can be detected by T1-weighted MRI. Frequently, a block paradigm is used for O2-MRI consisting of a series of T1-weig...