Categories

Archive for the ‘SMART PHONES’ Category

DETECTING DISEASES ON THE FLY WITH SMART PHONE APP

Monday, March 5th, 2012

SHORT CIRCUITING THE DISEASE TESTING PROCEDURE USING MOBILE DEVICE APP

Infectious diseases these days seem to have gotten a lot of attention, with media hype and threats of pandemics often being portrayed in apocalyptic sci-fi movies. We all know that several types of these diseases can spread rapidly, and it is absolutely crucial that doctors be able to identify them quickly in order to prevent an epidemic. Unfortunately, current testing procedures can take hours and even days, delaying the process of adequate prevention. It should then ease your mind to hear that researchers at the University of Tennessee have invented a mobile device that can rapidly detect these unwanted afflictions.

“Time is of the essence in treating infectious diseases,” said Jayne Wu, associate professor of computer science and electrical engineering at the University of Tennessee. “This device has the potential to save a lot of lives by saving time in detection. It also saves a lot of money as it is cheaper to detect diseases than the system that is currently being used since we do not have to send them to a lab and have the sample be scrutinized by technicians.”

The portable device developed by the University of Tennessee researchers can be used onsite to detect infectious diseases, pathogens and physiological conditions in people and animals. Furthermore, it has been designed to be easily used by any health care professional in any location. A droplet of blood is simply placed onto a microchip which is slotted into the device. The microchip is then treated with disease-specific antigens and can quickly identify if these disease-specific antibodies are present in the blood sample. If the antigens and antibodies match, then the device automatically informs the health care provider that the patient is infected. This all occurs in the space of minutes. To date, the device has been used to detect tuberculosis in humans and wild animals, and Johne’s disease in cattle.

“Johne’s disease is highly prevalent in this country and is causing more than $200 million of annual losses to the U.S. dairy industry,” said Shigetoshi Eda, associate professor of Forestry, Wildlife and Fisheries at the UT Institute of Agriculture Center for Wildlife Health. “Since there is no practical treatment for the disease, early diagnosis is critically important for disease control in dairy farms. This, in turn, helps farmers’ business and the milk supply.”

The researchers hope to further develop the device so it can detect a broader range of diseases and physiological conditions. In the future, it is envisioned that the device could diagnose cancer, Alzheimer’s disease and even detect pathogens in food materials.

Source: University of Tennessee

Sourced & published by Henry Sapiecha

LATEST SMART PHONE APP ADVISES WHEN TO HAVE YOUR COFFEE SCIENTISTS SAY

Tuesday, February 21st, 2012

SMART PHONE APP TO TELL YOU WHEN TO HAVE COFFEE

Scientists have now developed a free app that tells you the ideal time to take a coffee break to keep you in the “optimal mental alertness zone”.

The free Caffeine Zone iOS app, developed at Penn State University, is designed to help people determine when an extra jolt of caffeine may give them a mental boost and when it could harm sleeping patterns.

Users enter information about their caffeine consumption – how much caffeine they drank or plan to drink, when they consumed it and how fast – and the app combines this with data on the known effects of caffeine on the body to create a graph showing how caffeine will affect their system over time.

Coffee timeEach roast coffee has on average 80-115 milligrams of caffeine; the “optimal mental alertness zone” is 200-400 milligrams. Photo: Quentin Jones

The green bar represents the optimal caffeine zone while the blue bar is where you’ll need to get to before bed.

Drinking a cup of coffee rapidly gives people a spike in mental alertness but too much caffeine can also linger in the bloodstream and cause sleep problems hours later, said the researchers, who unveiled their app at the 2011 Augmented Cognition International Conference.

The app warns you if you’re about to consume a coffee that will put you over the sleep threshold, while it also alerts you if you could do with one more cup.

“Many people don’t understand how caffeine levels in their bloodstream go up and how they go down,” said Frank Ritter, the university’s professor of information sciences and technology, psychology and computer science and engineering.

“It’s important to understand the effect that caffeine can have at these various levels.”

According to the International Coffee Organization, for roast and ground coffees the average amount of caffeine contained in a standard cup ranges from 80-115 milligrams, depending on whether you use the drip method or a percolator.

For instant coffees, the average amount of caffeine per cup is 65 milligrams. A can of Coke has 20-30mg of caffeine, a Red Bull has 80mg and a cup of tea has between 40-120mg.

The scientists said they used peer-reviewed studies to determine that caffeine drinkers are in an “optimal mental alertness zone” when they have between 200 and 400 milligrams of caffeine in their bloodstream. But going above this range can cause nausea and nervousness.

When they want to sleep, drinkers may discover that they have problems when they have more than 100 milligrams of caffeine in their bloodstream.

It takes about an hour for caffeine to reach its full effect in a normal adult and after 5-6 hours you will still have half the caffeine you consumed in your blood stream.

Ultimately, the researchers said the app was designed to help people determine when to modify their caffeine habits.

The study was supported by the US Office of Naval Research. Ritter said the app was especially useful for sailors, who have varying sleep patterns each day.

“If they, and others who drink coffee to stay awake, drink too much coffee on one shift, they may have trouble sleeping,” said Ritter.

“So, the next day, they’ll drink even more coffee and have even more trouble sleeping.”

Sourced & published by Henry Sapiecha

NEW SMARTPHONE APP CAN TEST YOU FOR SKIN CANCER

Wednesday, January 25th, 2012

WANT TO CHECK YOUR SKIN TO SEE IF YOU HAVE SKIN CANCER

Then do it yourself with a new application for the smartphone which you can download for under $6

More…

Sourced & published by Henry Sapiecha