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Genetic Code of Deadly Mosquito Cracked

May 20, 2007

An international consortium of researchers has sequenced the majority of the genome of the Aedes mosquito, the scourge behind outbreaks of the deadly yellow, dengue and even chikungunya fevers that kill thousands of people in Africa, South America and Asia every year.

The genetic blueprint offers hope that specific genes can be identified that would allow scientists to combat these tropical diseases in their carrier.

Defeating Bedlam

December 18, 2008

Two new software programs can help scientists, students, and others get organized.

Trying to Take Technology to the Masses

August 16, 2004

Pioneering AI researcher Raj Reddy plans to unveil at yearend the PCtvt, a $250 wirelessly networked personal computer intended for the four billion people around the world who live on less than $2,000 a year.

Stress can be fattening, study finds

July 2, 2007

Studies of mice and monkeys show that repeated stress — and a high-fat, high-sugar diet — release a hormone, neuropeptide Y, that causes a buildup of abdominal fat, researchers from Georgetown University reported Sunday.

Manipulating levels of that hormone could melt fat from areas where it is not desired and accumulate it where it is needed, the researchers say in the journal Nature Medicine.

Brain cancer successfully treated with electrical field

May 30, 2007

A device that targets rapidly growing cancer cells with low frequency (100-300 kHz) alternating electric fields, called Tumor-Treating Fields (TTFields), doubled the survival rates of patients with brain cancer, according to a Proceedings of the National Academy of Sciences (PNAS) journal article.

A Mysterious Link Between Sleeplessness and Heart Disease

December 26, 2008

People who don’t get much sleep are more likely than those who do to develop calcium deposits in their coronary arteries, possibly raising their risk for heart disease, a new study has found.

The researchers concluded that one hour more of sleep per night was associated with a 33 percent decrease in the odds of calcification.

Possible mechanims include higher levels of the stress hormone cortisol with less… read more

Intel’s Next-Gen Chips

August 31, 2004

The world’s leading chipmaker is pushing the semiconductor manufacturing envelope by shrinking transitor size from 90 nanometers to 65.

The reduction allows Intel to cut the chip size of existing designs in half, reducing cost and power usage. Or by keeping the chip the same size, Intel could double the number of transistors in a given die area, allowing for new circuit capabilities and improved performance.

Tinkering With Humans

July 9, 2007

In “The Case Against Perfection,” Harvard philosopher Michael Sandel worries that steroids, growth hormones, genetic engineering and other enhancements “pose a threat to human dignity” and “diminish our humanity.”

Omnivorous Fuel Cells

January 6, 2009

Superprotonic is developing a fuel cell that can run on a range of fuels, including natural gas, biofuels, and other sources of dirty hydrogen, by a simple device called a “reformer.”

Rise of the robot

September 9, 2004

Future Horizons, a semi-conductor analyst company based in Kent, in England, believes that by 2010 there will be 55.5 million robots, in a world market worth more than $75 billion — up from $6.13 billion last year.

But the real explosion in robotics is coming among the “immobots,” or “bots” — bits of software that are incorporated into larger objects. We’re getting glimpses of how good these can be:… read more

New Physics Device May Revolutionize Cancer Treatment

July 18, 2007

University of Wisconsin researchers have proposed a system that may one day bring proton therapy, a state-of-the-art cancer treatment method currently available only at a handful of centers, to radiation treatment centers and cancer patients everywhere.

Compared to the x rays conventionally used in radiation therapy, protons are potentially more effective, as they can deposit more cell-killing energy in their tumor targets and less in surrounding healthy tissue. However,… read more

Invention: Ultrasound brain ‘window

January 12, 2009

Focusing a beam of ultrasound onto a small region of the skull changes its electrical behavior in a way that creates a kind of electrical window, allow the measurement of weak electric fields that do not usually escape the skull.

The signals can then be picked up using conventional EEG electrodes placed on the scalp to produce high-resolution maps of the brain that make it easy to single out… read more

NEC Extends Quantum Cryptography Range and Speed

September 22, 2004

NEC Corporation researchers have developed a quantum cryptography system that can generate quantum keys at a speed of 100Kbps and transmit them up to 40 kilometers along commercial fiber optic lines.

This combination of speed and distance is a world record. NEC expects to offer the system commercially in the second half of 2005.

Stem cells may mend a broken heart

July 30, 2007

Stem cells may help repair damaged tissue after a heart attack, according to Harvard Medical School researchers.

Edible technology relays medical data from inside the body

January 21, 2009

Proteus Biomedicals has developed an intelligent pill that sends digital signals to an external receiver after being swallowed.

It has digestible sensors that are made of food products and are activated by stomach fluids. Once swallowed, the sensors can send a digital signal through the body to a receiver. The receiver date- and time-stamps, decodes, and records information about the drug and the dosage. It also measures and reports… read more

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