857,180 articles

Deep Solar Minimum

How low can it go? The Sun is plunging into the deepest solar minimum in nearly a century.

'Squeezing' light into quantum dots

(PhysOrg.com) -- `Quantum wells have been instrumental in telecommunications, enabling light amplification,` Patanjali Kambhampati tells PhysOrg.com, `but theory has suggested that a very small - colloidal - quantum dot could amplify light even better than a quantum well. There have been problems, however, in getting lasers to work properly with colloidal quantum dots, so focus has shifted to...

Doctors identify patients at high risk of C. difficile

Doctors have developed and validated a clinical prediction rule for recurrent Clostridium difficile (C. difficile) infection that was simple, reliable and accurate, and can be used to identify high-risk patients most likely to benefit from measures to prevent recurrence. Their findings appear in a new study in Gastroenterology, the official journal of the American Gastroenterological Association...

Health benefits, consequences of folic acid dependent on circumstances

For the past several decades, evidence has shown that greater dietary intake of the B-vitamin, folate, offers protection against the development of certain common cancers and reduces neural tube defects in newborns, opening new avenues for public health interventions that have a great impact on health. However, folate's central role as an essential factor in DNA synthesis also means that abundant...

It's the year of the terabyte

I remember my first hard drive. Back then, getting a hard drive for your computer was tantamount to a rite of passage. It meant that you no longer had to struggle inserting floppy discs with their limited capacities and their plethora of assorted frailties. Until my first hard drive, whenever I wanted to load a program, I first had to find the floppy that contained the wanted application, insert...

Sex workers prefer remote screening for sexually transmitted diseases

Researchers at the University of Westminster have used a simple and convenient method for screening female commercial sex workers (CSW) for sexually transmitted infections (STIs) without the need for them to attend clinics. The women were given tampons that they could use to collect their own samples and post them to the laboratory. The results showed that the women in the study found...

YouTube blocks music videos on German site

German music fans hoping to catch their idols' latest hits on video-sharing website YouTube are set for disappointment after the site on Wednesday blocked certain music videos over a licensing dispute.

Global outlook for IT, jobs in difficult times

Craig Mundie, Microsoft chief research and strategy officer, took a break from the company's Government Leaders Forum -- Americas on Wednesday to discuss global competitiveness, technology and government IT spending.

Kindle 2 will no doubt find lots of new fans

The Kindle 2, the second version of Amazon's breakthrough electronic book reader, is cheaper ($359), thinner (0.36 inches), can hold more books (more than 1,500 compared with 200), and has a longer battery life (Amazon says you can read for four to five days with wireless turned on and for longer than two weeks with it turned off) than the original.

Scientists identify gene linked to deadly disorder in newborns

After 12 years of searching, UCLA scientists have tracked down the first known gene mutation responsible for a heartbreaking disorder that kills newborn babies. Published in the April 1 online edition of the American Journal of Human Genetics, their findings will allow for earlier testing of embryos at risk for the disease.

Tech offers relative job security, statistics show

Despite layoffs at tech stalwarts like Google, IBM, Microsoft and Electronic Arts, the impact of the recession on the tech industry is likely to be far less severe than on other areas of the economy, recent labor statistics suggest.