Ability to sit and rise from the floor is closely correlated with all-cause mortality risk

In 2002, over 2000 people between the ages of 51 and 80 were asked to sit on the floor using as little hand- or knee-support as possible. They were then asked to stand up without resorting to using their hands or knees if they were able. The results were recorded. By the end of October 2011, 159 subjects had died. It turns out that most of the people who died were the ones who needed the most support while performing the task. Only 2 of the 159 people who died had been able to sit down and stand up unsupported: “These differences persisted when results were controlled for age, gender and body mass index, suggesting that the sitting-rising test score is a significant predictor of all-cause mortality.” Test of musculo-skeletal fitness is ‘strong predictor’ of mortality in the middle-aged and older (Via Seth Robert’s Blog )

View post:
Ability to sit and rise from the floor is closely correlated with all-cause mortality risk

Internet Explorer 8 and Earlier Vulnerable to New Exploit

If you prefer to use Internet Explorer or must use it in your enterprise environment you should be aware of a new exploit that takes advantage of the way IE accesses an object in memory that has been deleted or not properly allocated. More »

Read the article:
Internet Explorer 8 and Earlier Vulnerable to New Exploit

Oh God, Here Come the Private Security Drones

It was inevitable. Drones are in ever-wider use by the military, and some day they might deliver you food, but it looks like they’ll also be the private, flying-camera spies for private companies too. That’s what Japanese security company Secom is banking on with its new private security quadrotor. More »

Originally posted here:
Oh God, Here Come the Private Security Drones

Five Best DVD Ripping Tools

If you want to take your movies with you on the road, or just want to clean up those physical discs but keep your films and TV shows on your HTPC, you’ll need to rip them first. Thankfully, there are plenty of great utilities designed to make the process easy and give you files that are playable on any device you choose, whenever you choose to watch them. Here are five of the best, based on your nominations. More »

Read the article:
Five Best DVD Ripping Tools

DIY Cryogenic Fluid Made from Dry Ice and Rubbing Alcohol Performs Most Liquid Nitrogen Demonstrations

If you’re a science hobbyist you probably don’t have access to actual liquid nitrogen (-320 degrees Fahrenheit) but you can make your own cryo-fluid from dry ice and rubbing alcohol that goes down to -110 degrees Fahrenheit, enough to instantly freeze flowers, cherries, and other popular liquid nitrogen demonstrations. More »

View the original here:
DIY Cryogenic Fluid Made from Dry Ice and Rubbing Alcohol Performs Most Liquid Nitrogen Demonstrations

Cree Introduces 200 Lumen/Watt Production Power LEDs

ndverdo writes “Cree just announced production power LEDs reaching 200 lumen/watt. Approximately doubling the previous peak LED light efficiency, the new LEDs will require less cooling. This should enable the MK-R series to finally provide direct no-hassle replacements to popular form-factors such as MR-16 spots and incandescent lighting in general. The LEDs are sampling and it is stated that ‘production quantities are available with standard lead times.'” Read more of this story at Slashdot.

Read this article:
Cree Introduces 200 Lumen/Watt Production Power LEDs