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News Archive - Susan Brown

Three Generations of UC San Diego Physicists Plumb the Microvasculature of the Mammalian Brain

Blood vessels within a sensory area of the mammalian brain loop and connect in unexpected ways, a new map created by a team that includes three generations of UC San Diego physicists has revealed.

Shape-shifting Nanoparticles Flip from Sphere to Net in Response to Tumor Signal

Scientists at the University of California, San Diego, have designed tiny spherical particles to float easily through the bloodstream after injection, then assemble into a durable scaffold within diseased tissue.

Mathematicians Analyze Social Divisions Using Cell Phone Data

Differences divide us. Human society fractures along lines defined by politics, religion, ethnicity, and perhaps most fundamentally, language. Although these differences contribute to the great variety of human lives, the partitions they create can lead to conflict and strife, impeding efforts toward social justice and economic development.

DARPA Awards $6 Million to Develop Nanotech Therapies for Traumatic Brain Injuries

DARPA, the U.S. Defense Advanced Research Projects Agency, has awarded $6 million to a team of researchers to develop nanotechnology therapies for the treatment of traumatic brain injury and associated infections.

Extreme Star Formation Reveals a Fleeting Phase of Galactic Evolution

Astronomers have spotted a galaxy that is igniting new stars faster than ever seen before. Measurements from several instruments show that gas in this galaxy is condensing to form stars close to the maximum rate thought possible.

Biological Activity Alters the Ability of Particles from Sea Spray to Seed Clouds

Ocean biology alters the chemical composition of sea spray in ways that influence its ability to form clouds over the ocean. That’s the conclusion of a team of scientists using a new approach to study tiny atmospheric particles called aerosols that can influence climate by absorbing or reflecting sunlight and seeding clouds.

Clues to Climate Cycles Dug from South Pole Snow Pit

Particles from the upper atmosphere trapped in a deep pile of Antarctic snow hold clear chemical traces of global meteorological events, a team from the University of California, San Diego and a colleague from France have found.

New Survey of Distant Galaxies Will Trace Changes Over Billions of Years

Astronomers will begin an ambitious new project to measure light from thousands of distant galaxies this weekend. Over the next four years, they will spend 47 nights surveying the sky for signals from a time when the Universe was just 2 to 4 billion years old and the earliest galaxies were forming.

Even the Smallest Possible Stroke Can Damage Brain Tissue and Impair Cognitive Function

Blocking a single tiny blood vessel in the brain can harm neural tissue and even alter behavior, a new study from the University of California, San Diego has shown. But these consequences can be mitigated by a drug already in use, suggesting treatment that could slow the progress of dementia associated with cumulative damage to minuscule blood vessels that feed brain cells. The team reports their results in the December 16 advance online edition of Nature Neuroscience.

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