Now, an app to detect skin cancer

Washington: Scientists have developed a new, free iPhone application which could help you conduct a self exam to detect potential skin cancer, but there is a catch: You will have to fully expose yourself for results.

Developed by a team at the University of Michigan in the US, the new app, called UM SkinCheck, aims to make the already existing whole body photographic self-diagnosis a bit simpler and cheaper.
Instead of hiring a photographer for full body shots, the app allows one to take multiple shots of different body parts. In other words, one has to take 23 nude photos in seven different poses that will be stored on an app. As you cannot take all the photos yourself , you will have to enlist a friend to help, LiveScience reported.
In addition to the full-body survey , the app includes many other useful tools. "You can do a self-exam , where it guides you through checking parts of your body that are most likely to have exposure to sun, a lesion tracker, so you can note if sunspots on your body have changed or become abnormal, and a risk calculator, which asks questions like your race and amount of freckles to determine your chance of developing melanoma," the portal said.
There's also important information on sun damage and tips on how to stay safe. A Characteristics of Melanoma tab shows images of what potential skin cancer could look like, a Sun Safety tab has tips on how to preserve your skin while outside and a Sunscreen Tips tab has lots of info on what kind of sunscreen to use and when to use it. And there's also a helpful feature for links on learning more about skin cancer and preventing it. Background info within the app says that "studies have shown that total body photography can be an important tool in helping track skin changes that could indicate skin cancer" .
Thankfully the app has a password protection setting, which, when enabled, keeps your information and images private. You can also set up notification times for when you should do a self-exam or check lesions.

An electric idea


Bihar generates power from rice

In a country where more than 400 million people live without electricity, it isn't political rhetoric and policies filtered through many layers of bureaucracy that will benefit people. An innovative approach to identifying and addressing the basic lack of infrastructure works best. This is best exemplified by the initiative to convert rice husks to electricity in Bihar. Pioneered by a company called Husk Power Systems, established in 2007 by Bihar native Gyanesh Pandey along with three partners - it's a peculiarly Indian initiative, making a virtue out of the necessity of low-cost solutions to large-scale problems. In essence, Pandey and his partners have devised an electric distribution system powered by the waste product of rice husks, generated when rice is milled - something in abundant supply in Bihar where, it is estimated, 1.8 billion kgs of rice husk are produced annually.
The results have been eye-opening with 80 mini-plants across the state supplying power to 32,000 households, at a price level that is sustainable even in a rural economy. But given the abysmal state of power generation in India, this is just a tiny fraction of the potential market. This is where the government must step in. The private sector has shown the way; now New Delhi must play enabler. Aiding in establishment of similar systems in other states and smoothing the way for procurement of capital via loans and investment will go a long way towards expanding the scope for biomass power generation. And the rewards could be staggering. Lack of access to power is perhaps the most basic impediment to economic growth. Remove that and the India growth story will receive a much-needed shot in the arm.

US develops drone that can stay in sky for 48 hours


WASHINGTON: Scientists in the US claimed to have developed a new "silent drone" that has an increased flight time of about 48 hours, an invention which is expected to further strengthen the country's surveillance.

The Stalker Unmanned Aerial System (UAS), developed by aerospace company Lockheed Martin, has been kept in the air for 48 hours using a radical new laser power system during trials.

This increase in flight time represents an improvement of 2,400 per cent and could eventually keep military spy drones in the sky forever, the developers said.

The small, silent UAS is already used by Special Operations Forces since 2006 to perform intelligence, surveillance and reconnaissance missions.

"We're pleased with the results of this test. Laser power holds real promise in extending the capabilities of Stalker," Tom Koonce, programme manager at Lockheed Martin Skunk Works Stalker said.

"A ground-to-air recharging system like this allows us to provide practically unlimited flight endurance to extend and expand the mission profiles that the Stalker vehicle can fulfill," he added.

The Stalker UAS was modified for the indoor flight test to incorporate the power beaming technology from LaserMotive.

It makes it possible to wirelessly transfer energy over long distances using laser light.

"This test is one of the final steps in bringing laser-powered flight to the field. By enabling in-flight recharging, this system will ultimately extend capabilities, improve endurance and enable new missions for electric aircraft," said Tom Nugent, president of LaserMotive.

"The next step in proving the reality of this technology is to demonstrate it outdoors in an extended flight of the Stalker," he said.

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