Keeping Bugs Away from Food
New Gene Fights Potato Blight
Middle school science adventures
Salamanders and Newts
Little Beetle, Big Horns
Gliders in the Family
Little Bee Brains That Could
GSAT Mathematics Quiz, Teaching Math, teaching anxiety
Surprise Visitor
Training Your Brain to Feel Less Pain
Chemistry and Materials
When frog gender flips
A Framework for Growing Bone
Moon Crash, Splash
Secrets of an Ancient Computer
New twists for phantom limbs
Computers with Attitude
Dinosaurs and Fossils
South America's sticky tar pits
Tiny Pterodactyl
Have shell, will travel
E Learning Jamaica
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Deep Drilling at Sea
Springing forward
Snowflakes and Avalanches
Whale Watch
Animal CSI or from Science Lab to Crime Lab
Missing Tigers in India
Finding the Past
If Only Bones Could Speak
Decoding a Beverage Jar
Big Woman of the Distant Past
Skates and Rays
White Tip Sharks
Food and Nutrition
Strong Bones for Life
In Search of the Perfect French Fry
A Taste for Cheese
GSAT English Rules
Order of Adjectives
Finding Subjects and Verbs
Adjectives and Adverbs
GSAT Exam Preparation Jamaica
Tarrant High overcoming the odds
Preparing for the GSAT Exam
Results of GSAT are in schools this week
GSAT Exams Jamaica Scholarships
GSAT Practice Papers | GSAT Mathematics | Maths
2014 GSAT Results for Jamaican Kids
Access denied - Disabled boy aces GSAT
GSAT Mathematics
Math of the World
Losing with Heads or Tails
Secrets of an Ancient Computer
Human Body
Nature's Medicines
Smiles Turn Away Colds
Music in the Brain
Persian Cats
Raise a Lifelong Reader by Reading Aloud
How children learn
The Surprising Meaning and Benefits of Nursery Rhymes
Extra Strings for New Sounds
Black Hole Journey
Echoes of a Stretched Egg
White fuzzy mold not as friendly as it looks
Making the most of a meal
Hungry bug seeks hot meal
Space and Astronomy
Burst Busters
A Dusty Birthplace
Asteroid Moons
Technology and Engineering
A Clean Getaway
Slip Sliming Away
Searching for Alien Life
The Parts of Speech
Adjectives and Adverbs
What is a Preposition?
What is a Verb?
Where rivers run uphill
Revving Up Green Machines
Morphing a Wing to Save Fuel
In Antarctica watch the heat (and your step)
The solar system's biggest junkyard
Earth's Poles in Peril
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Heart Revival

When your heart works like it's supposed to, it keeps you alive and well. But when the heart fails, people can get very sick or even die. Now, scientists have found a way to turn dead rat hearts into living ones. It's a medical first, and the technique may eventually allow doctors to make new hearts from patients' own cells. This should largely avoid the risk that the patient's body will reject the new heart, which often happens today. Researchers from the University of Minnesota in Minneapolis started with hearts from rats that had been dead for less than 18 hours. Led by Doris A. Taylor, the scientists put the hearts in glass beakers and used a liquid detergent to wash away the dead cells. Left behind was a heart-shaped mass of proteins that normally surround heart cells and hold them together. The mass was translucent, which means it lets light through, and it had the consistency of Jell-O. Next, Taylor and her colleagues took cells from hearts of newborn rats. They injected these living cells into the hollowed-out hearts. Eight days later, the hearts were pumping weakly. And the injected cells in each heart beat synchronously—that is, all at the same time. "The fact that we can get these cells to beat synchronously is incredibly encouraging," Taylor says. It will be years before doctors might consider using this method to repair hearts in people, the scientists warn. In the study, the rebuilt hearts could pump blood only about 2 percent as fast as a normal adult rat heart can. Eventually, scientists would like to be able to use primitive stem cells from a patient's blood or heart tissue to repair his or her own organs.—Emily Sohn

Heart Revival
Heart Revival

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