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Brain Cells Self-Amplify

By Jef Akst | July 5, 2011

A certain type of neural precursor does it all—replaces itself, differentiates into specialized brain cells, and multiplies into more stem-cell-like cells.

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image: Exosome Explosion

Exosome Explosion

By Clotilde Théry | July 1, 2011

These small membrane vesicles do much more than clean up a cell’s trash—they also carry signals to distant parts of the body, where they can impact multiple dimensions of cellular life.

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image: Americans Support Stem Cell Research

Americans Support Stem Cell Research

By Jef Akst | July 1, 2011

A new study finds that more than two thirds of Americans approve of the use of stem cells in research aiming to cure serious diseases.

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image: C-ing with the Lights Out

C-ing with the Lights Out

By Richard P. Grant | July 1, 2011

I the dark Arctic shallows one research finds heterotrophic marine bacteria doing a surprising amount of carbon fixing.

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image: Exosome Basics

Exosome Basics

By Clotilde Théry | July 1, 2011

Exosomes are small membrane vesicles secreted by most cell types. Internal vesicles form by the inward budding of cellular compartments known as multivesicular endosomes (MVE). 

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image: The Ninefold Ring

The Ninefold Ring

By Richard P. Grant | July 1, 2011

Editor’s Choice in Structural Biology

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Contributors

July 1, 2011

Meet some of the people featured in the July 2011 issue of The Scientist.

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image: Scientist to Watch

Scientist to Watch

By Alison McCook | July 1, 2011

“This is my trophy,” says biologist Michael Edidin, walking across his office at Johns Hopkins University to pick up two oversized clock hands, once part of the stately clock tower that still stands on the Baltimore campus. 

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image: Trading Pelts for Pestilence

Trading Pelts for Pestilence

By Jef Akst | July 1, 2011

When European explorers and fishermen began to frequent Canada’s shores in the 16th century, they brought with them a plethora of tools and trinkets, including knives, axes, kettles, and blankets. 

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The president of the University of the Ryukyus in Japan coauthored a paper containing a duplicated figure.

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