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Latest Brown University Stories

Single Nanomaterial Yields Many Laser Colors
2012-04-30 07:46:35

Engineers at Brown University and QD Vision Inc. have created nanoscale single crystals that can produce the red, green, or blue laser light needed in digital displays. The size determines color, but all the pyramid-shaped quantum dots are made the same way of the same elements. In experiments, light amplification required much less power than previous attempts at the technology. The team´s prototypes are the first lasers of their kind. Red, green, and blue lasers have become small...

2012-04-25 07:43:21

Here's an anatomical packing list for making that historic trip from water to land circa 370 million years ago: Lungs? Check. Legs? Check. Patches of highly vascular bone in the skin? In a new paper, scientists propose why many of the earliest four-legged creatures that dared breathe on land carried bony skin features. The "dermal bones" within the skin, especially the bones covering the skull roof and forming part of the shoulder girdle, had a highly complex surface of ridges and furrows...

2012-04-24 22:54:30

Research also finds how RNA editing enzyme activity varies with temperature Because a function of RNA is to be translated as the genetic instructions for the protein-making machinery of cells, RNA editing is the body's way of fine-tuning the proteins it produces, allowing us to adapt. The enzyme ADAR, which does this editing job in the nervous system of creatures ranging from mice to men, even edits itself. In a new study that examined the self-editing process and locked it down at two...

2012-04-12 10:22:23

ROSLYN, N.Y., April 12, 2012 /PRNewswire/ -- The following is a statement from Brad Gerstman, Esq., Hofstra Alumnus and Former Football Player: In recent days, Hofstra reported the resignation of embattled Athletic Director, Jack Hayes. Interestingly, however not surprisingly, Hayes left Hofstra University for a much smaller athletic program at Brown University in an effort to revitalize his career. Hayes served as Athletic Director for Hofstra during tumultuous times, including but not...

Bats Save Energy By Drawing In Wings On Upstroke
2012-04-12 04:15:23

[ Watch the Video ] Whether people are building a flying machine or nature is evolving one, there is pressure to optimize efficiency. A new analysis by biologists, physicists, and engineers at Brown University reveals the subtle but important degree to which that pressure has literally shaped the flapping wings of bats. The team's observations and calculations show that by flexing their wings inward to their bodies on the upstroke, bats use only 65 percent of the inertial energy they...

2012-04-11 22:15:58

No matter what novel objects we come to behold, our brains effortlessly take us from an initial "What's that?" to "Oh, that old thing" after a few casual encounters. In research that helps shed light on the malleability of this recognition process, Brown University neuroscientists have teased apart the potentially different roles that two distinct cell types may play. In a study published in the journal Neuron, the researchers document that this kind of learning is based in the inferior...

2012-03-29 02:07:22

Researchers at Brown University and Hasbro Children´s Hospital have traced the molecular interactions that allow the protein survivin to escape the nucleus of a breast cancer cell and prolong the cell´s life. The study may help in the development of better therapies and prognostics. If the fight against breast cancer were a criminal investigation, then the proteins survivin, HDAC6, CBP, and CRM1 would be among the shadier figures. In that vein, a study to be published in the March...

2012-03-24 04:48:29

Researchers at Brown University have created an implant that appears to deter breast cancer cell regrowth. Made from a common federally approved polymer, the implant is the first to be modified at the nanoscale in a way that causes a reduction in the blood-vessel architecture that breast cancer tumors depend upon, while also attracting healthy breast cells. Results are published in Nanotechnology. One in eight women in the United States will develop breast cancer. Of those, many will...

2012-03-12 21:26:14

An article released by Social Forces indicates that voter identification requirements have a substantially negative impact on the voting of all groups except for Asians. Particularly strong negative effects are seen for Blacks and Hispanics: a decrease in voting by 18 percent and 22 percent respectively. Even Whites show dampened turnout associated with voter ID policies. Yet for Asians, strikingly, voter ID has the opposite effect, boosting turnout by nearly 30 percent. This is an intriguing...

2012-03-12 14:40:58

Chemists at Brown University have created a triple-headed metallic nanoparticle that reportedly performs better and lasts longer than any other nanoparticle catalyst studied in fuel-cell reactions. The key is the addition of gold: It yields a more uniform crystal structure while removing carbon monoxide from the reaction. Results published in the Journal of the American Chemical Society. Advances in fuel-cell technology have been stymied by the inadequacy of metals studied as catalysts....