Keeping the noise down for ICU patients
New research by Edith Cowan University (ECU) and Fiona Stanley Hospital aims to decrease noise levels in intensive care units (ICUs) by implementing improvements in acoustic design.
May 1, 2024
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New research by Edith Cowan University (ECU) and Fiona Stanley Hospital aims to decrease noise levels in intensive care units (ICUs) by implementing improvements in acoustic design.
May 1, 2024
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The American Academy of Otolaryngology–Head and Neck Surgery Foundation (AAO-HNSF) has published "Clinical Practice Guideline: Age-Related Hearing Loss" in Otolaryngology–Head and Neck Surgery. This clinical practice ...
Apr 30, 2024
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An international group of noise experts from the Copenhagen Cancer Institute (Denmark), the Swiss Tropical and Public Health Institute (Swiss TPH), the Perelman School of Medicine at the University of Philadelphia (U.S.) ...
Apr 25, 2024
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Nursing homes in disadvantaged communities are more likely to overmedicate residents with antipsychotics, especially homes that are understaffed, according to a study published in JAMA Network Open.
Apr 24, 2024
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In rural Kenya, 64-year-old John Kamau's world of silence is about to change. For decades, isolated by hearing loss from the community's vibrant life and his grandchildren's conversations, he sees hope when a community health ...
Apr 18, 2024
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Autism is a neurodevelopmental difference associated with specific experiences and characteristics.
Mar 27, 2024
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While it's not surprising to spot teens wearing headphones and earbuds, it's also becoming a widespread trend among younger children, a national poll suggests.
Feb 26, 2024
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Anyone who has ever been to a loud concert knows the feeling of ringing ears. Some people experience temporary or even permanent hearing loss or drastic changes in their perception of sound after the loud noises stop. Thanos ...
Feb 12, 2024
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One in four people suffer from some kind of sleep disorder—insomnia, sleep apnea, narcolepsy, hypersomnia, restless legs syndrome. And for a quarter of them, there is no effective, long-term solution. It is a public health ...
Jan 30, 2024
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The first study to map the prevalence of bilateral hearing loss in the United States by state and county finds that rates of hearing loss are higher among men, non-Hispanic whites, and residents of rural areas. Bilateral ...
Jan 29, 2024
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In common use, the word noise means any unwanted sound. In both analog and digital electronics, noise is random unwanted perturbation to a wanted signal; it is called noise as a generalisation of the acoustic noise ("static") heard when listening to a weak radio transmission with significant electrical noise. Signal noise is heard as acoustic noise if the signal is converted into sound (e.g., played through a loudspeaker); it manifests as "snow" on a television or video image. High noise levels can block, distort, change or interfere with the meaning of a message in human, animal and electronic communication.
In signal processing or computing it can be considered random unwanted data without meaning; that is, data that is not being used to transmit a signal, but is simply produced as an unwanted by-product of other activities. "Signal-to-noise ratio" is sometimes used to refer to the ratio of useful to irrelevant information in an exchange.
In biology, noise can describe the variability of a measurement around the mean, for example transcriptional noise describes the variability in gene activity between cells in a population.
In many cases, the special case of thermal noise arises, which sets a fundamental lower limit to what can be measured or signaled and is related to basic physical processes described by thermodynamics, some of which are expressible by simple formulae.
In some fields, noise means unwanted information or data that is not relevant to the hypothesis or theory being investigated or tested.
This text uses material from Wikipedia, licensed under CC BY-SA