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New imaging technique reveals different heart motions by age, gender

Medicine & Health / Research

created Dec 08, 2009 | popularity not rated yet | comments 0

Using a new noninvasive imaging technique, scientists said they have discovered important, fundamental differences in heart motion by age and gender.


Shells

Snails and humans use same genes to tell right from left

Biology /

created Dec 21, 2008 | popularity 5 / 5 (1) | comments 0

(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.


Right-handed chimpanzees provide clues to the origin of human language

Biology / Plants & Animals

created Nov 16, 2009 | popularity 2.5 / 5 (2) | comments 8

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 ...


EKG can show false positive readings for diagnosing heart condition

Medicine & Health / Diseases

created Nov 16, 2009 | popularity not rated yet | comments 0

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 ...


on February 4, 2009. In a study

Sinister business: Lefties have evolutionary boon

Biology / Evolution

created Feb 27, 2009 | popularity 3.6 / 5 (13) | comments 10

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?

Medicine & Health / Research

created Nov 17, 2008 | popularity 3.7 / 5 (16) | comments 1

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 ...


Drug for erectile dysfunction improves heart function in young heart-disease patients

Medicine & Health / Research

created Nov 18, 2009 | popularity 5 / 5 (1) | comments 0

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 ...


Women suffering sudden cardiac arrest have lower prevalence of structural heart disease than men

Medicine & Health / Research

created Nov 17, 2009 | popularity not rated yet | comments 0

A woman who suffers sudden cardiac arrest is significantly less likely than a man to exhibit the decrease in the heart's pumping ability that is widely recognized as a precursor, says a new study in the Nov. 24 Journal of ...


Size matters: Obesity leading risk factor of left atrial enlargement during aging

Medicine & Health / Diseases

created Nov 09, 2009 | popularity 5 / 5 (1) | comments 0

Aside from aging itself, obesity appears to be the most powerful predictor of left atrial enlargement (LAE), upping one's risk of atrial fibrillation (the most common type of arrhythmia), stroke and death, according to findings ...


Puzzle of ants' suicide mission to protect the nest

Biology /

created Sep 24, 2008 | popularity 4.4 / 5 (23) | comments 2

(PhysOrg.com) -- Scientists studying social insect behaviour have discovered a remarkable example of self-sacrifice in a species of ant found in Brazil.


Environment plays role in complex heart defect

Medicine & Health / Diseases

created Mar 30, 2009 | popularity not rated yet | comments 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 ...


Panasonic Develops World's First 3D Full HD Plasma Theater System

Electronics / Consumer & Gadgets

created Sep 24, 2008 | popularity 3.8 / 5 (9) | comments 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 ...


Delusions associated with consistent pattern of brain injury

Medicine & Health / Research

created Jan 13, 2009 | popularity 4 / 5 (1) | comments 0

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 ...


Sarah J. McCarthey

'No Child' law gets an 'F' from education professor at Illinois

Other Sciences / Other

created Nov 05, 2008 | popularity 4.3 / 5 (6) | comments 5

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 ...


Fetal heart surgery may prevent full-blown left heart chamber disorder

Medicine & Health / Research

created Sep 29, 2009 | popularity not rated yet | comments 0

Surgery performed in fetuses predicted to be born with a syndrome causing severely underdeveloped hearts helped some avoid developing the full-blown disorder and improved heart growth and function, researchers reported in ...