890,651 articles

Latino toddlers lag in cognitive growth

(PhysOrg.com) -- Two new studies led by University of California, Berkeley, researchers find that immigrant Latina mothers, who typically live in poor neighborhoods, give birth to healthy babies, but their toddlers start to lag behind middle-class white children in basic language and cognitive skills by the age of 2 or 3.

LCLS: The World's Largest Laser Writer?

(PhysOrg.com) -- While not the smallest lettering ever created, the tiny initials "LCLS" have been written with what may be the world's most potent pen. Etched into boron carbide, a super-hard substance used in accelerator shielding and body armor, the lettering has helped researchers at SLAC National Accelerator Laboratory explore the capabilities of the world's first hard X-ray laser, the Linac...

The Physics Of A Bump In A Rug

Scientists often have to make sacrifices for their work. Physicist Dominic Vella chopped his bathroom rug into strips, and L. Mahadevan's coauthor ran off with his bookshelf. With these sacrifices, these two teams were able to glean enough information to revolutionize the world's understanding about the physics of lumpy carpets.

The Spin Cycle: Nanoresearch could lead to next generation of transistors

(PhysOrg.com) -- For decades, the transistors inside radios, televisions and other everyday items have transmitted data by controlling the movement of the electron`s charge. Scientists now have discovered that transistors could use less energy, generate less heat and operate at higher speeds if they exploited another property of the electron: its spin.

Genomes Of Two Popular Research Strains Of E. Coli Sequenced

Researchers have sequenced and analyzed the genomes of two important laboratory strains of E. coli bacteria, one used to study evolution and the other to produce proteins for basic research or practical applications. The findings will help guide future research and will also open a window to a deeper understanding of classical research that is the foundation of our understanding of basic molecular...

Biochemical 'On-Switch' Could Solve Protein Purification Challenge

(PhysOrg.com) -- Drugs based on engineered proteins represent a new frontier for pharmaceutical makers. Even after they discover a protein that may form the basis of the next wonder drug, however, they have to confront a long-standing problem: how to produce large quantities of the protein in a highly pure state. Now, a multi-institutional research team including a biochemist at the National...

Is Your Microrobot Up for the (NIST) Challenge?

(PhysOrg.com) -- The scientists and engineers who introduced the world to tiny robots demonstrating soccer skills are creating the next level of friendly competition designed to advance microrobotics -- the field devoted to the construction and operations of useful robots whose dimensions are measured in micrometers.

Long carbon fibers could improve blast resistance of concrete structures

(PhysOrg.com) -- Dr. Jeffery Volz, assistant professor of civil, architectural and environmental engineering at Missouri University of Science and Technology, and his team have received $567,000 to explore how adding carbon fibers could improve the blast and impact resistance of conventional reinforced concrete. The research is funded by the through a cooperative agreement with the Leonard Wood...

Physicists Turn to Radio Dial for Finer Atomic Matchmaking

(PhysOrg.com) -- Investigating mysterious data in ultracold gases of rubidium atoms, scientists at the Joint Quantum Institute of the National Institute of Standards and Technology and the University of Maryland and their collaborators have found that properly tuned radio-frequency waves can influence how much the atoms attract or repel one another, opening up new ways to control their...

Presidential election outcome changed voters' testosterone

Young men who voted for Republican John McCain or Libertarian candidate Robert Barr in the 2008 presidential election suffered an immediate drop in testosterone when the election results were announced, according to a study by researchers at Duke University and the University of Michigan.

Professor calculates a cooler planet

(PhysOrg.com) -- Some people fight global warming by driving fuel-efficient cars. Others weatherproof their houses or plant trees. Princeton's René Carmona does math. As the United States and other countries around the world debate how to best reduce the production of greenhouse gases, Carmona hopes to bring the objectivity - and rationality - of mathematics to bear on the problem.

Scientists Create NICE Solution to Pneumonia Vaccine Testing Problems

(PhysOrg.com) -- Medical clinics the world over could benefit from new software* created at the National Institute of Standards and Technology, where a team of scientists has found a way to improve the efficiency of a pneumonia vaccine testing method developed at the University of Alabama at Birmingham (UAB).

Scientists find new set of multiferroic materials

(PhysOrg.com) -- The trail to a new multiferroic started with the theories of a U.S. Department of Energy's Argonne National Laboratory scientist and ended with a multidisciplinary collaboration that created a material with potential impact on next generation electronics.