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Damonte Johnson

News : New study provides guidelines for safe levels of iPod listening - 1 views

www.deafnessresearch.org.uk/els+of+iPod+listening+3211.twl

study news iPod deafness

shared by Damonte Johnson on 30 Jun 10 - Cached
  • The study, by researchers at the University of Colorado at Boulder and Children's Hospital in Boston, indicates a typical person can safely listen to an iPod for 4.6 hours per day at 70 percent volume using stock earphones, according to Cory Portnuff, a doctoral researcher in CU-Boulder's speech language and hearing sciences department.
  • The researchers found that listening to music at full volume through an iPod for more than five minutes a day using stock earphones can increase the risk of hearing loss in a typical person
  • Typical individuals can tolerate about two hours a day of a decibel unit known as 91-dBA before risking hearing loss, Portnuff said. The term dBA stands for "A-weighted decibels, a scale that takes into account that the human ear has different sensitivities to different frequency levels,"
  • ...2 more annotations...
  • Loud sounds can stress and potentially damage delicate hair cells in the inner ear that convert mechanical vibrations, or sound, to electrical signals that the brain interprets as sound. "Over time, the hair cells can become permanently damaged and no longer work
  • No one set of earphones is more dangerous than another," he said. "While isolator style earphones are capable of producing higher levels of sound than earbuds, most people use them at a lower volume than earbuds because they block out background noise. It's important to monitor the level of volume control settings."
  • Damonte Johnson on 30 Jun 10
     
    Website specifically on iPod vollume levels. It was a study done back in 2006 but with the new iPods with louder music it can only get worse.
alex walters

What is the difference between a college and a university? | What is the difference bet... - 0 views

studyusa.com/...ce_between_a_college_and_a_uni

college university degree

shared by alex walters on 01 Jul 10 - Cached
  • alex walters on 01 Jul 10
     
    this site answers the question of what is the difference between a college and a universtiy
Cynthia Graville

nsf.gov - National Science Foundation (NSF) News - New Study Shows How Tortoises, Allig... - 0 views

www.nsf.gov/...news_summ.jsp

corroborates other sources credentialed expert

shared by Cynthia Graville on 16 Sep 10 - No Cached
  • A new study of the High Arctic climate roughly 50 million years ago led by the University of Colorado at Boulder helps to explain how ancient alligators and giant tortoises were able to thrive on Ellesmere Island well above the Arctic Circle, even as they endured six months of darkness each year.
  • The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2010, its budget is about $6.9 billion. NSF funds reach all 50 states through grants to nearly 2,000 universities and institutions. Each year, NSF receives over 45,000 competitive requests for fu
David Hoffelmeyer

Hydrogen Takes A New Form - Science News - 0 views

www.sciencenews.org/...Hydrogen_takes_a_new_form

University of Edinburgh awaiting peer review Physical Review Letters University College London preliminary results

shared by David Hoffelmeyer on 02 Mar 12 - No Cached
  • David Hoffelmeyer on 02 Mar 12
     
    High-pressure studies reveal long-sought phase Web edition : Thursday, March 1st, 2012 Squeezing hydrogen at extreme pressures changes it into a mix of honeycombed atoms layered with free-floating molecules - an entirely new state of the element and the first new phase found in decades.
David Hoffelmeyer

Caffeine Disrupts Sleep for Morning People But Not Night Owls: Scientific American - 0 views

www.scientificamerican.com/article.cfm

preliminary research Assistant professor of psychology and behavioral sciences Stanford University Peer reviewed study Sleep Medicine weak attribution

shared by David Hoffelmeyer on 02 Mar 12 - No Cached
  • David Hoffelmeyer on 02 Mar 12
     
    Get weekly coverage delivered to your inbox. YES! Send me a free issue of Scientific American with no obligation to continue the subscription. If I like it, I will be billed for the one-year subscription.
nebria ragland

Hormones Increase Frequency Of Inherited Form Of Migraine In Women - 0 views

www.sciencedaily.com/...081222221447.htm

animal testing science daily mass. general hospital university studies migraines hormones

shared by nebria ragland on 01 Jul 10 - Cached
  • nebria ragland on 01 Jul 10
     
    this is an article about how performing experiments on mice help understand why migraines effect women more. they have found that by injecting the mice with a certain hormone found commonly in women, the mice have showed the same behaviors as women do who have severe migraines. ultimately this experiment will help doctors/ scientist further understand women and migraines
Marquise Middleton

One in 10 species could face extinction: Decline in species shows climate change warnin... - 0 views

www.sciencedaily.com/...110711151457.htm

shared by Marquise Middleton on 13 Jul 11 - No Cached
  • Marquise Middleton on 13 Jul 11
     
    ScienceDaily (July 11, 2011) — One in 10 species could face extinction by the year 2100 if current climate change impacts continue. This is the result of University of Exeter research, examining studies on the effects of recent climate change on plant and animal species and comparing this with predictions of future declines.
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