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206,908 articles from PhysOrg

Earthquake experts turn to history for guidance

A major quake of magnitude seven on the Richter scale in the politically-fragile region of the Middle East could have dire consequences for precious holy sites and even world peace, says Tel Aviv University geologist Dr. Shmulik Marco. In light of this imminent danger, Marco, from the school`s Department of Geophysics and Planetary Sciences, has taken an historical approach to earthquake...

New volume chronicles recent insights into Earth's interior

A new volume published by the Geological Society of America focuses on techniques that have opened new windows of observation into Earth processes. Advances in High-Pressure Mineralogy highlights recent technical developments in high-pressure mineral physics as well as new results that have changed our understanding of Earth's deep interior.

Researchers devise way to calculate rates of evolution

“Survival of the fittest” has popularly described evolution for more than a century, but a new study published in the Royal Society journal Biology Letters provides further evidence that random genetic mutations over millions of years may also play a powerful role.

Brain needs perfection in synapse number

Like Goldilocks, the brain seeks proportions that are just right. The proper number of synapses or communication between nerve cells, determined early in life, is crucial to having a healthy brain that can learn and retain information.

Brain's 'social enforcer' centers identified

Researchers have identified brain structures that process the threat of punishment for violating social norms. They said that their findings suggest a neural basis for treating children, adolescents, and even immature adults differently in the criminal justice system, since the neural circuitry for processing the threat of such punishment is not as developed in younger individuals as it is in...

Combination vaccines okay for infants, study shows

A University of Rochester study brings relief to new parents who, while navigating a jam-packed childhood vaccine schedule, can expect to soothe their newborn through as many as 15 “pokes” by his or her six-month checkup.

Fake Steve Jobs Arranges Book Tour

(AP) -- The "Fake Steve Jobs" blogger who jealously guarded his anonymity for nearly a year is now arranging a publicity tour and touting his real-life biography in a forthcoming book.

Innovations in International Calling: MAXroam SIM Cuts Costs

Cubic Telecom MAXroam Sim popular in Europe is on its way to North America. The MAXroam SIM card is inserted into an unlocked mobile phone with GSM network capability. MAXroam provides easy instructions on installation and will show consumers how to unlock their mobile phone. The initial cost is around $42.60.

Linking 2 molecular pieces of the Alzheimer's puzzle

Researchers have uncovered a biological link between the protein whose mutation causes early-onset Alzheimer`s disease (AD) and a gene variant linked to late-onset AD. The researchers said their finding could lead to new approaches to treating AD.

Mathematicians defy gravity

Droplets of liquid have been shown to travel uphill, rather than sliding down as expected, when the surface they are on is vigorously shaken up and down.

Miss America Keeps Kids Safe on 'Net

(AP) -- Seven years ago, 13-year-old Lauren Nelson and a few friends entered an Internet chat room during a sleepover. Within a week, an online predator was e-mailing one of them lurid photos.

New engineering model advances prospect of alternative-fuel vehicles

Researchers at the UCLA Henry Samueli School of Engineering and Applied Science have developed a model that could help engineers and scientists speed up the development of hydrogen-fueled vehicles by identifying promising hydrogen-storage materials and predicting favored thermodynamic chemical reactions through which hydrogen can be reversibly stored and extracted.

Physicist defends Einstein's theory and 'speed of gravity' measurement

Scientists have attempted to disprove Albert Einstein's theory of general relativity for the better part of a century. After testing and confirming Einstein's prediction in 2002 that gravity moves at the speed of light, a professor at the University of Missouri-Columbia has spent the past five years defending the result, as well as his own innovative experimental techniques for measuring the speed...

Review: Mobile Computing Without Laptop

(AP) -- When you have programs and files on one computer and need them on another, you can do a lot of copying and pray they work on the second PC. Or you could connect the machines via remote desktop software. You could even spring for a laptop.

Study dissects the anatomy of social conformity

Researchers have identified the part of the brain that processes the threat of punishment for flouting social rules, a finding that could have implications for understanding the behaviour of psychopaths, a study released Wednesday said.

TomTom Shares Fall on Tele Atlas Fears

(AP) -- Shares in navigation device maker TomTom NV fell Wednesday on speculation that its $2.7 billion takeover of digital mapping company Tele Atlas NV could come unglued in the wake of a bigger deal: Nokia Corp.'s bid for mapmaker Navteq Corp.