Posts Tagged ‘American science’

Happy Thanksgiving America!

 :: Posted by American Biotechnologist on 11-27-2013

It’s that time of year when we relax and give thanks for our nation, our family, our friends and our HUGE turkeys. Did you know that in the time of the pilgrims, turkeys only weighed up to 6 kg, yet today, male turkeys can weigh a whopping 36 kilos! That’s enormous, and it is all thanks to science and the process of natural selection.

Yet massive size has its drawbacks. Due to their over-bearing bulk, heavy male turkeys are unable to mate which poses a challenge for continuity of the species. That is one of the main reason that all American turkeys are produced by artificial insemination. Certainly not a job for anybody.

Watch this video to learn more.

Electrical Sewage

 :: Posted by American Biotechnologist on 09-16-2013

Engineers at Stanford University have devised a new way to generate electricity from sewage using naturally-occurring “wired microbes” as mini power plants, producing electricity as they digest plant and animal waste.

In a paper published today in the Proceedings of the National Academy of Sciences, co-authors Yi Cui, a materials scientist, Craig Criddle, an environmental engineer, and Xing Xie, an interdisciplinary fellow, call their invention a microbial battery.

One day they hope it will be used in places such as sewage treatment plants, or to break down organic pollutants in the “dead zones” of lakes and coastal waters where fertilizer runoff and other organic waste can deplete oxygen levels and suffocate marine life.

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Be happy: Your genes may thank you for it

 :: Posted by American Biotechnologist on 08-06-2013

A good state of mind — that is, your happiness — affects your genes, scientists say. In the first study of its kind, researchers from UCLA’s Cousins Center for Psychoneuroimmunology and the University of North Carolina examined how positive psychology impacts human gene expression.

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