News tagged with left
Snails and humans use same genes to tell right from left
Biology /
Dec 21, 2008 |
5 / 5 (1) |
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(PhysOrg.com) -- Biologists have tracked down genes that control the handedness of snail shells, and they turn out to be similar to the genes used by humans to set up the left and right sides of the body.
Sinister business: Lefties have evolutionary boon
Feb 27, 2009 |
3.6 / 5 (13) |
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Under Darwinian pressure, genes that don't help the struggle to survive get squeezed out of the genetic code, leaving the ones that are fitter.
How is our left brain is different from our right?
Nov 17, 2008 |
3.7 / 5 (16) |
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Since the historical discovery of the speech center in the left cortex in 150 years ago, functional differences between left and right hemisphere have been well known; language is mainly handled by left hemisphere, while ...
Puzzle of ants' suicide mission to protect the nest
Biology /
Sep 24, 2008 |
4.4 / 5 (23) |
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(PhysOrg.com) -- Scientists studying social insect behaviour have discovered a remarkable example of self-sacrifice in a species of ant found in Brazil.
Panasonic Develops World's First 3D Full HD Plasma Theater System
Electronics / Consumer & Gadgets
Sep 24, 2008 |
3.8 / 5 (9) |
2
Panasonic has developed the world's first 3D full HD Plasma Theater System, which enables the viewing of true-to-life 3D images by using a 103-inch plasma television and a Blu-ray Disc (BD) player, distributing full high-definition ...
Cow power could generate electricity for millions
Jul 24, 2008 |
3.8 / 5 (35) |
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Converting livestock manure into a domestic renewable fuel source could generate enough electricity to meet up to three per cent of North America's entire consumption needs and lead to a significant reduction in greenhouse ...
Worms do calculus to find meals or avoid unpleasantness
Biology /
Jul 02, 2008 |
4.6 / 5 (9) |
1
Thanks to salt and hot chili peppers, researchers have found a calculus-computing center that tells a roundworm to go forward toward dinner or turn to broaden the search. It's a computational mechanism, they ...
EKG can show false positive readings for diagnosing heart condition
Nov 16, 2009 |
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The electrical measurements on the electrocardiogram can often mislead physicians in diagnosing the heart condition left ventricular hypertrophy, causing other screening tests to be ordered before a definitive conclusion ...
Right-handed chimpanzees provide clues to the origin of human language
Nov 16, 2009 |
2.5 / 5 (2) |
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Most of the linguistic functions in humans are controlled by the left cerebral hemisphere. A study of captive chimpanzees at the Yerkes National Primate Research Center (Atlanta, Georgia), reported in the January 2010 issue ...
Environment plays role in complex heart defect
Mar 30, 2009 |
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1
A congenital heart disease that often leads to death in newborns is significantly more common during the summer, leading researchers to believe that the environment, and not just genes that affect the heart, may play a role ...
Delusions associated with consistent pattern of brain injury
Jan 13, 2009 |
4 / 5 (1) |
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A new study provides a novel theory for how delusions arise and why they persist. NYU Langone Medical Center researcher Orrin Devinsky, MD, performed an in-depth analysis of patients with certain delusions and brain disorders ...
'No Child' law gets an 'F' from education professor at Illinois
Nov 05, 2008 |
4.3 / 5 (6) |
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The controversial No Child Left Behind law has forced teachers in low-income school districts to craft a curriculum that marginalizes writing at the expense of teaching to the test, resulting in educators ...
Nuclear stress test can detect more than blockages
Jul 14, 2008 |
5 / 5 (3) |
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A less invasive test commonly used to diagnose coronary disease also may be used to detect one of the leading causes of heart failure, say researchers at the Medical College of Georgia.
New imaging technique reveals different heart motions by age, gender
Dec 08, 2009 |
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Using a new noninvasive imaging technique, scientists said they have discovered important, fundamental differences in heart motion by age and gender.
Drug for erectile dysfunction improves heart function in young heart-disease patients
Nov 18, 2009 |
5 / 5 (1) |
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Heart function significantly improved in children and young adults with single-ventricle congenital heart disease who have had the Fontan operation following treatment with sildenafil, a drug used to treat erectile dysfunction ...
