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Calcium may be the key to understanding Alzheimer's disease

Jul 18, 2008 | User rating: 3.8 / 5 after 5 vote(s) | pda version

Researchers at the University of Pennsylvania School of Medicine have shown that mutations in two proteins associated with familial Alzheimer's disease disrupt the flow of calcium ions within neurons. The two proteins, called ...


Einstein was right: Unique stellar system provides 'laboratory' for testing relativity

Jul 03, 2008 | User rating: 4.7 / 5 after 72 vote(s) | pda version

Researchers at McGill University's Department of Physics – along with colleagues from several countries – have confirmed a long-held prediction of Albert Einstein's theory of general relativity, via observations ...


Unknown molecule opens the door to quantum computing

Jun 27, 2008 | User rating: 4.8 / 5 after 80 vote(s) | pda version

The odd behavior of a molecule in an experimental silicon computer chip has led to a discovery that opens the door to quantum computing in semiconductors.


Mechanism explains calcium abnormalities in Alzheimer's brain

Jun 25, 2008 | User rating: 4.5 / 5 after 6 vote(s) | pda version

A new study uncovers a mechanism that directly links mutations that cause early onset Alzheimer's disease (AD) with aberrant calcium signaling. The research, published by Cell Press in the June 26th issue of the journal Neuron, ...


Second genetic risk factor for late-onset Alzheimer's disease found

Jun 25, 2008 | User rating: 5 / 5 after 4 vote(s) | pda version

Researchers have discovered the second, strong genetic risk factor for developing late-onset Alzheimer's disease, according to a new report in the June 27th issue of the journal Cell, a Cell Press publication.


Researchers Find Source of Drug-Tolerant Tuberculosis

Jun 12, 2008 | User rating: 5 / 5 after 1 vote(s) | pda version

University of Pittsburgh-led researchers discovered that the primary bacteria behind tuberculosis can grow on surfaces and that drug-tolerant strains flourish in these bacterial communities, the research team recently reported ...


Can you hear black holes collide?

Jun 11, 2008 | User rating: 4.3 / 5 after 15 vote(s) | pda version

A team of gravitational-wave researchers from four universities has been selected to exhibit at the prestigious Royal Society Summer Science Exhibition.


Source of drug-tolerant tuberculosis possibly behind TB relapses, intensity of treatment

Jun 11, 2008 | User rating: 5 / 5 after 2 vote(s) | pda version

University of Pittsburgh-led researchers discovered that the primary bacteria behind tuberculosis can grow on surfaces and that drug-tolerant strains flourish in these bacterial communities, the research team recently reported ...


New Yorkers uneasy over organ-harvesting ambulance project

Jun 09, 2008 | User rating: 4.5 / 5 after 6 vote(s) | pda version

An ambulance rushes to the scene of an accident and the paramedics prepare to assist the victim. Behind them another ambulance rolls up, its paramedics ready to intervene if the patient dies.


Where mathematics and astrophysics meet

Jun 05, 2008 | User rating: 4.6 / 5 after 36 vote(s) | pda version

The mathematicians were trying to extend an illustrious result in their field, the Fundamental Theorem of Algebra. The astrophysicists were working on a fundamental problem in their field, the problem of gravitational ...


Evidence of a Bose glass state?

May 30, 2008 | User rating: 4.5 / 5 after 51 vote(s) | pda version

"In nano-sized systems many physical properties are greatly altered from those of macroscopic-sized systems. Therefore, study of nano-sized systems, in general, is very important in developing fundamental physics," Keiya ...


New study casts further doubt on risk of death from higher salt intake

May 15, 2008 | User rating: 4.6 / 5 after 14 vote(s) | pda version

Contrary to long-held assumptions, high-salt diets may not increase the risk of death, according to investigators from the Albert Einstein College of Medicine of Yeshiva University. They reached their conclusion after examining ...


First measurement of entangled states in nitrogen

May 15, 2008 | User rating: 4.5 / 5 after 28 vote(s) | pda version

When atoms form molecules, they share their outer electrons and this creates a negatively charged cloud. Here, electrons buzz around between the two positively charged nuclei, making it impossible to tell ...


Mouse study: When it comes to living longer, it's better to go hungry than go running

May 14, 2008 | User rating: 4.5 / 5 after 8 vote(s) | pda version

A study investigating aging in mice has found that hormonal changes that occur when mice eat significantly less may help explain an already established phenomenon: a low calorie diet can extend the lifespan of rodents, a ...


Maths plus 'geeky' images equals deterred students

May 12, 2008 | User rating: 3.9 / 5 after 7 vote(s) | pda version

Images of maths ‘geeks’ stop people from studying mathematics or using it in later life, shows research funded by the Economic and Social Research Council.


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