background: exposure to loud music from sources such as portable music players (pmp), especially among adolescents, can lead to noise-induced hearing loss. the aims of this study are as follows: 1) investigate the prevalence of headphone use in iranian university students by assessing their behavior, 2) determine the type of headphones used, and 3) ascertain the type of music player used. metho...

certain conditions limit the independence of deprived people. however, those conditions do not limit the right of these people to receive dental care. portable dental units may make it possible for the deprived and elderly to receive the care they deserve in more areas. this study aimed to explore dentists' perceptions of the use of portable dental units in community outreach programs as a prec...

background and objective: obstructive sleep apnea (osa) is a disease with serious consequences. many portable devices have been developed to overwhelm some of limitations in the accessibility of the gold standard test for osa, polysomnography (psg). this study aimed to determine diagnostic accuracy of a portable sleep apnea screener against psg in patients of a sleep clinic. materials and metho...

this paper describes the system design of a portable and economical mu rhythm based brain computer interface which employs cypress semiconductors programmable system on chip (psoc). by carrying out essential processing on the psoc, the use of an extra computer is eliminated, resulting in considerable cost savings. microsoft visual studio 2005 and psoc designer 5.01 are employed in developing th...