Author Archives: Guest Post

Signals Intelligence

Former CIA, NSA director shares his perceptions of ‘electronic underworld’

The virtual network streaming vacation pictures and emails to grandma and grandpa also transmits messages between terrorists who want to attack the United States, according to the former chief executive of two of the most powerful and secretive American intelligence agencies. (more…)

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Hiding in Plain Sight, A New Frog Species With A ‘Weird’ Croak is Identified in New York City

In the wilds of New York City — or as wild as you can get so close to skyscrapers — scientists have found a new leopard frog species that for years biologists mistook for a more widespread variety of leopard frog.

While biologists regularly discover new species in remote rain forests, finding this one in the ponds and marshes of Staten Island, mainland New York and New Jersey — sometimes within view of the Statue of Liberty — is a big surprise, said the scientists from UCLA, Rutgers University, UC Davis, and The University of Alabama who worked together to make the unexpected discovery. (more…)

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Loss of Appetite Deciphered in Brain Cell Circuit

The meal is pushed way, untouched. Loss of appetite can be a fleeting queasiness or continue to the point of emaciation. While it’s felt in the gut, more is going on inside the head.

New findings are emerging about brain and body messaging pathways that lead to loss of appetite, and the systems in place to avoid starvation. (more…)

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Researchers ‘Print’ Polymers That Bend Into 3-D Shapes

*Technique could be used to direct growth of blood vessels or tissues in the laboratory*

Christian Santangelo, Ryan Hayward and colleagues at the University of Massachusetts Amherst recently employed photographic techniques and polymer science to develop a new technique for printing two-dimensional sheets of polymers that can fold into three-dimensional shapes when water is added. The technique may lead to wide ranging practical applications from medicine to robotics

The journal Science publishes the research in its March 9 issue. (more…)

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Insulin, Nutrition Prevent Blood Stem Cell Differentiation in The Fruit Fly

UCLA stem cell researchers have shown that insulin and nutrition prevent blood stem cells from differentiating into mature blood cells in Drosophila, the common fruit fly, a finding that has implications for studying inflammatory response and blood development in response to dietary changes in humans.

Keeping blood stem cells, or progenitor cells, from differentiating into blood cells is important as blood stem cells are needed to create the blood supply for the adult fruit fly. (more…)

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Statue, Chapels and Animal Mummies Found in Egypt by U of T Team

Rare wood statue may be female pharaoh

A wooden statue of a king, a private offering chapel, a monumental building and remains of over 80 animal mummies found by a University of Toronto-led team in Abydos, Egypt reveal intriguing information about ritual activity associated with the great gods. (more…)

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