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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

Why diets don't work: Starved brain cells eat themselves, study finds - 0 views

www.sciencedaily.com/...110802125546.htm

diets brain cells study

shared by alex walters on 03 Aug 11 - No Cached
  • alex walters on 03 Aug 11
     
    Why Diets Don't Work: Starved Brain Cells Eat Themselves, Study Finds
alex walters

Usain Bolt: Case Study In Science Of Sprinting | ThePostGame - 0 views

www.thepostgame.com/...t-case-study-science-sprinting

running track speed bolt case study

shared by alex walters on 27 Jul 11 - No Cached
  • alex walters on 27 Jul 11
     
    the speed of leg movement has little to do with speed
David Hoffelmeyer

Study: HIV risks rise with some birth control - 0 views

www.kmov.com/...e-birth-control-125891028.html

shared by David Hoffelmeyer on 02 Aug 11 - No Cached
  • David Hoffelmeyer on 02 Aug 11
     
    ATLANTA (AP) -- In what's being called the first research of its kind, a study found that HIV-infected women in Africa are more likely to spread the AIDS virus if they use hormone-based birth control.
Marquise Middleton

Chimps Show Lethal Side - Science News - 0 views

www.sciencenews.org/...Chimps_show_lethal_side

shared by Marquise Middleton on 14 Apr 12 - No Cached
  • Marquise Middleton on 14 Apr 12
     
    Killings sometimes occur in communities across Africa PORTLAND, Ore. - In a cooperative venture aimed at understanding the most uncooperative of acts, researchers studying different African communities of wild chimpanzees have pooled their data and found that the apes sometimes kill each other nearly everywhere they've been studied.
Marquise Middleton

Cool Jobs: Studying what you love | Science News for Kids - 0 views

www.sciencenewsforkids.org/...ol-jobs-studying-what-you-love

shared by Marquise Middleton on 12 Jul 12 - No Cached
  • Marquise Middleton on 12 Jul 12
     
    Wayne Maddison was 13 years old when he fell in love. Standing on the shore of Lake Ontario in Canada, he noticed a mat of grass float by. On top of the mat was a spider about the size of a dime, withmetallic green jaws. "She looked up at me," recalls Maddison.
Tasha Dickerson

Egg Production After Birth Questioned - Science News - 0 views

www.sciencenews.org/...duction_after_birth_questioned

shared by Tasha Dickerson on 31 Jul 12 - No Cached
  • Tasha Dickerson on 31 Jul 12
     
    Egg production after birth questioned Study finds no evidence of stem cells in mouse ovaries Web edition : Monday, July 9th, 2012 Women may indeed be limited to the number of eggs their ovaries contain at birth, a new study finds, directly contradicting recent research that suggests otherwise.
Alan Newman

Why men are attracted to women with small feet - life - 02 July 2010 - New Scientist - 0 views

www.newscientist.com/...-to-women-with-small-feet.html

New Scientist social sciences sex secondary source semicredible 2010 attraction

shared by Alan Newman on 02 Jul 10 - Cached
  • Alan Newman on 02 Jul 10
     
    A strange study with unusual results.
  • James Dixon on 06 Jul 10
     
    Very Interesting what is the meaning of the story i get it but whyy ??
Adeola Adewale

Switching Genes On and Off | NOVA | PBS Video - 0 views

video.pbs.org/1503825140

genes switching on off flies wings

shared by Adeola Adewale on 07 Jul 10 - Cached
  • Adeola Adewale on 07 Jul 10
     
    This is a credible video because it uses professionals in the gene study. I believe this is credible because they also conduct an experiment.
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
Gabrielle Gant

Shedding a Few Over the Economy? Don't Bother: Study Finds No Psychological Benefit to ... - 0 views

healthland.time.com/...ying-wont-make-you-feel-better

benefit crying emotional

shared by Gabrielle Gant on 02 Aug 11 - No Cached
  • Gabrielle Gant on 02 Aug 11
     
    Comments
Tasha Dickerson

Something In The Air May Cause Lung Damage In Troops - Science News - 0 views

www.sciencenews.org/...ay_cause_lung_damage_in_troops

shared by Tasha Dickerson on 21 Jul 11 - No Cached
  • Tasha Dickerson on 21 Jul 11
     
    Some soldiers serving in the Middle East who develop difficulty breathing - but whose chest X-rays show nothing out of the ordinary - have constrictive bronchiolitis, a kind of lung damage virtually unknown in young adults, a study shows.
Marquise Middleton

Brain Gene Activity Changes Through Life - Science News - 0 views

www.sciencenews.org/..._activity_changes_through_life

shared by Marquise Middleton on 29 Oct 11 - No Cached
  • Marquise Middleton on 29 Oct 11
     
    Brain gene activity changes through life Studies track biochemical patterns from just after conception to old age Web edition : Friday, October 28th, 2011 Human brains all work pretty much the same and use roughly the same genes in the same way to build and maintain the infrastructure that makes people who they are, two new studies show.
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