objective: noise pollution is one of the most important situations requiring a solution by the contemporary world. the national institute for occupational safety and health has identified noise as one of the ten leading causes of work-related diseases and injuries. dentists and dental auxiliaries are exposed to different noise levels while working in dental offices or laboratories. the purpose ...

BACKGROUND Sleep deprivation is common in critically ill patients in intensive care units (ICU). It can result in delirium, difficulty weaning, repeated nosocomial infections, prolonged ICU length of stay and increased ICU mortality. Melatonin, a physiological sleep regulator, is well known to benefit sleep quality in certain people, but evidence for the effectiveness in ICU sleep disturbance i...

1109 No self-respecting concertgoer of a certain era would consider wearing earplugs at a show, but that was long before Pete Townsend and other rock icons spoke out about the risk of deafness. Today, most people recognize that highintensity noise causes hearing loss—except maybe for those iPod users who routinely blast earsplitting music straight into their brains. Blaring volume causes deafne...

IMPORTANCE Data indicate that 1 in 6 adolescents has high-frequency hearing loss, which is typically noise related and preventable. Parental participation improves the success of adolescent behavioral interventions, yet little is known about parental perspectives regarding adolescent noise-induced hearing loss. OBJECTIVE To perform a survey to determine parental knowledge of adolescent hearin...

Apoptosis can be described as programmed cell death. Apoptosis regulates cell turnover and is involved in various pathological conditions. The characteristic features of apoptosis are shrinkage of the cell body, chromatin condensation, and nucleic acid fragmentation. During apoptosis, double-stranded DNA is broken down into single-stranded DNA (ssDNA) by proteases. Acoustic trauma is commonly e...

The auditory spatial tuning of bimodal (auditory-visual) units in the optic tectum of the barn owl was altered by raising animals with one ear occluded. Changes in spatial tuning were assessed by comparing the location of a unit's auditory best area with that of its visual receptive field. As shown previously, auditory best areas are aligned with visual receptive fields in the tecta of normal b...

OBJECTIVE Evaluate the experience of paramedic personnel at mass gatherings in the absence of on-site physicians. DESIGN Retrospective review of patients evaluated by paramedics with emergency medical services (EMS) medical control. SETTING First-aid facility operated by paramedics at an outdoor amphitheater involving 32 (predominantly rock music) concerts in accordance with the Chicago EMS...

Objective: to analyze evidence available in the literature concerning non-pharmacological interventions that are effective to treat altered sleep patterns among patients who underwent cardiac surgery. Method: systematic review conducted in the National Library of Medicine-National Institutes of Health, Cochrane Central Register of Controlled Trials, Latin American and Caribbean Health Science...