of drying the hands was 23 s, hence longer than the duration of the hand rub. To shorten the standardized technique of hand rubbing from 6 to 5 or 4 steps and decreasing the number of repetitions from 5 to 3 times per step had only small effects, but with the 4-step sequence the bacterial reduction was less pronounced such that this procedure cannot be considered equivalent to the standard. Con...

The second part of this work follows on the work carried out in Part 1 where the investigations were made between the grinding phenomena: cutting, ploughing and rubbing. The demarcation between each of the phenomenon was identified from Acoustic Emission (AE) signals being converted to the frequency-time domains using Short-Time Fourier Transforms (STFTs). Other digital signal processing techni...

Bowhead whales (Balaena mysticetus) have a nearly circumpolar distribution, and occasionally occupy warmer shallow coastal areas during summertime that may facilitate molting. However, relatively little is known about the occurrence of molting and associated behaviors in bowhead whales. We opportunistically observed whales in Cumberland Sound, Nunavut, Canada with skin irregularities consistent...

Acoustic emission is an effective method of locating the rubbing fault. In order to solve the problem that satisfactory location accuracy is difficult to obtain because of the waveform distortion caused by signal propagation during the application of time delay estimation method in acoustic emission position estimation, beam-forming technique is applied to acoustic emission source location. Sim...

Background: Keratoconus (KC), is a non-inflammatory, bilateral, asymmetrical, progressive disease characterized by ectasia, thinning, increasing corneal curvature, and loss of visual acuity. In Saudi Arabia, it was discovered that KC has been the main reason for transplantation in past 20 years. Eye rubbing considered one most significant risk factors based on available data. Participants metho...

INTRODUCTION Hand hygiene is an important procedure in preventing peritoneal dialysis-related infections. OBJECTIVE To compare the effectiveness of two distinct techniques for hand hygiene in reducing the number of colony-forming units in patients on peritoneal dialysis. MATERIALS AND METHOD Controlled clinical trial. Thirty patients underwent three collections of microbiological flora from...