The aim of this pilot study was to evaluate whether sleep was improved by a 1-day sleep education program in an occupational setting and whether stopping alcohol intake at bedtime might influence sleep. Subjects were 40 high school employees. The sleep education program lasted 4.5 hours and consisted of sleep science information, and sleep hygiene education including the risk of sleep related b...

INTRODUCTION Quality is very frequent word used in industry as synonym for good product, technologies etc. Strictly speaking this word is frequently misused or misinterpreted. In some cases word “quality” is used for expression maintainability, reliability or economy of production Especially in the textile branch is necessary to define quality very tightly because textile products (e.g. weaves)...

In order to assess the effects of the sinusoidal vibrations on indices that characterise the internal quality, five samples of 30 eggs were stressed for 5 h with a constant acceleration of 0 5 g (root mean square value, r.m.s.) at frequency linearly increasing with the time in the 5–20, 20–35, 35–50, 50–65 and 65–80Hz ranges (one range for each sample). Vibration tests were carried out by means...

©2009 EUROPEAN MOLECULAR BIOLOGY ORGANIZATION 800 correspondence correspondence Quality and quantity indices in science: use of visualization tools R ecent articles in EMBO reports have addressed the issues of decreasing research funding (Wolinsky, 2009) and the importance of research evaluation (Bornmann & Daniel, 2009). Both topics are directly connected to one other. In the light of stagnant...

process capability indices show the ability of a process to produce products according to the pre-specified requirements. since final quality characteristics of a product are usually interrelated to its previous amounts in earlier workstations, one need to model and consider the relationship among them to assess the process ca-pability properly. hence, conducting process capability analysis in ...

The sample variation of indices for approximation of sets in the context of rough sets data analysis is considered. We consider the g and a indices and some other ones – lower and upper bound approximation of decision classes. We derive confidence bounds for these indices as well as a two group comparison procedure. Finally we present procedures to compare the approximation quality of two sets ...

The quality assurance (QA) of radiographic images based on the operating conditions of X-ray equipment is essential for good image quality, accurate medical diagnostics and for the prevention of health professionals and patients to unnecessary doses of ionizing radiation. This paper presents a historical analysis of 1,635 Quality Assurance Technical Reports of Health Institutions in the state o...