NANOTECHNOLOGY

Vesicles influence the function of nerve cells

Neurons react to the transmission activity of exosomes on three fundamental levels Neurons react to the transmission activity of exosomes on three fundamental levels Tiny vesicles containing protective substances which they transmit to nerve cells apparently play an important role in the functioning of neurons.

Scientists discover pain receptor on T-cells

Researchers at University of California, San Diego School of Medicine have discovered that T-cells - a type of white blood cell that learns to recognize and attack microbial pathogens - are activated by a pain receptor.

Scientists develop barcoding tool for stem cells

New technology that tracks the origin of blood cells challenges scientific dogma New technology that tracks the origin of blood cells challenges scientific dogma A 7-year-project to develop a barcoding and tracking system for tissue stem cells has revealed previously unrecognized features of normal blood production: New data from Harvard Stem Cell Institute scientists at Boston Children's Hospital suggests, surprisingly, that the billions of blood cells that we produce each day are made not by blood stem cells, but rather their less pluripotent descendants, called progenitor cells.

A new way to extract bone-making cells from fat tissue

PROVIDENCE, R.I. [Brown University] — Within our fat lives a variety of cells with the potential to become bone, cartilage, or more fat if properly prompted. This makes adipose tissue, in theory, a readily available reservoir for regenerative therapies such as bone healing if doctors can get enough of those cells and compel them to produce bone.

Teen hormones and cellphones

Sexting leads to increased sexual behavior among teens Sexting leads to increased sexual behavior among teens Researchers at the University of Texas Medical Branch at Galveston say that sexting may be the new "normal" part of adolescent sexual development and is not strictly limited to at-risk teens.

Why Antimatter Matters—Majorana Particles Discovered By Princeton University

When a long-held theory concerning particle physics lasts 80 years, you can assume that research discoveries are often few and far between. But it turns out that physics may have a new chapter added to the record books as researchers at Princeton University have solved the mystery of “Majorana Particles”.

​In A Bad Mood? Head to Facebook and Find Someone Worse Off

Study finds that people use social networks to manage moods Study finds that people use social networks to manage moods When people are in a bad mood, they are more likely to actively search social networking sites like Facebook to find friends who are doing even worse than they are, a new study suggests.

Sense of invalidation uniquely risky for troubled teens

A study of 99 teens hospitalized out of concern about suicide risk found that a high perception of family invalidation - or lack of acceptance - predicted future suicide events among boys, and peer invalidation predicted future self harm, such as cutting, among the teens in general.

Making oxygen before life

About one-fifth of the Earth's atmosphere is oxygen, pumped out by green plants as a result of photosynthesis and used by most living things on the planet to keep our metabolisms running. But before the first photosynthesizing organisms appeared about 2.4 billion years ago, the atmosphere likely contained mostly carbon dioxide, as is the case today on Mars and Venus.

Curiosity helps learning and memory

Curiosity helps us learn about a topic, and being in a curious state also helps the brain memorize unrelated information, according to researchers at the UC Davis Center for Neuroscience. Work published Oct. 2 in the journal Neuron provides insight into how piquing our curiosity changes our brains, and could help scientists find ways to enhance overall learning and memory in both healthy individuals and those with neurological conditions.

On the Verge of Antimatter—Superconducting Iron Reveals ‘Majorana Particles’

For more than 80 years, physicists have sought out the truth behind one of the most contended theoretical phenomena, known simply as “Majorana particles”. And now with some superconducting iron particles, researchers from Princeton University believe that they have found the particles that at one are both matter and the elusive antimatter.
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