August 21st, 2007

The Future of Blood

The Future of Blood..

Some researchers tinker with real blood; some create from scratch. Henrik Clausen and his colleagues at the University of Copenhagen have managed to turn any type of blood into type O, the kind that all people can safely receive. The challenge has been how to remove the molecular badges—A, B, and AB—that lie on the surface of the red blood cells and can trigger rejection by a patient’s immune system.

 

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kemo3

Joke of the Day

A man was just waking up from anaesthesia after surgery, and his wife was sitting by his side. His eyes fluttered open and he said, "You're beautiful." Then he fell asleep again. His wife had never heard him say that, so she stayed by his side. A few minutes later, his eyes fluttered open and he said, "You're cute!" The wife was disappointed because instead of "beautiful," it was now "cute." She said, "What happened to 'beautiful'?" The man replied, "Sorry but the drugs are wearing off.."

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Sharks Genes

Sharks Have Genes for Fingers and Toes!

The basic process for developing fingers and toes in land animals may have existed for more than 500 million years in shark genes, according to a new study. Researchers identified genetic activity in spotted catsharks embryos that signal the creation of digits.


The discovery pushes back the date of the evolutionary "fin to limb" advance by some 135 million years.
When a gene—essentially a set of instructions—is translated into a trait, such as red hair or an arm, it is said to be expressed. Scientists have long believed that the gene for digit development was first expressed some 365 million years ago in the earliest tetrapodsthe first vertebrates to walk on land.

Kemo D. (a.k.a. no.7) www.beyondgenes.com

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Person of the Week

Barbara Morgan


Astronaut teacher Barbara Morgan made a hometown call from orbit Thursday. After one thwarted attempt due to orbital mechanics, Morgan successfully reached students at McCall-Donnelly Elementary School in McCall, Idaho, where she taught English and mathematics before joining NASA's astronaut corps. Students asked Morgan how difficult it is to eat without gravity, how she slept in space and what protected the ISS and Endeavour from asteroids and space debris.

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