Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
Medicine

Submission + - Self-control in kids predicts future success (chicagotribune.com)

SpuriousLogic writes: Will your toddler grow up to be a healthy, financially stable, drug-free human being? It all depends on self-control, a new study says.

Signs of self-control in children as young as 3 could predict how successful that child would be as an adult, according to a paper published online Monday in Proceedings of the National Academy of Sciences.

The international team of researchers looked at 1,037 children in New Zealand born in the early 1970s, observing their levels of self-control at ages 3 and 5. At ages 5, 7, 9 and 11, the team used parent, teacher and the children's own feedback to measure such factors as impulsive aggression, hyperactivity, lack of persistence and inattention. At age 32, they used physical exams, blood tests, records searches and personal interviews of 96% of the original participants to determine how healthy, wealthy and law-abiding the subjects had turned out to be.

The results were startling. In the fifth of children with the least self-control, 27% had multiple health problems. Compare that with the fifth of kids with the most self-control — at just 11%. Among the bottom fifth, 32% had an annual income below approximately $15,000, while only 10% of the top fifth fell into that low-income bracket. Just 26% of the top-fifth's offspring were raised in single-parent homes, compared with 58% of those in the bottom fifth. And 43% of the bottom fifth had been convicted of a crime, far outstripping the top fifth's 13% rate.

Supercomputing

Roland Piquepaille Dies 288

overheardinpdx writes "I'm sad to report that longtime HPC technology pundit Roland Piquepaille (rpiquepa) died this past Tuesday. Many of you may know of him through his blog, his submissions to Slashdot, and his many years of software visualization work at SGI and Cray Research. I worked with Roland 20 years ago at Cray, where we both wrote tech stories for the company newsletter. With his focus on how new technologies modify our way of life, Roland was really doing Slashdot-type reporting before there was a World Wide Web. Rest in peace, Roland. You will be missed." The notice of Roland's passing was posted on the Cray Research alumni group on Linked-In by Matthias Fouquet-Lapar. There will be a ceremony on Monday Jan. 12, at 10:30 am Paris time, at Père Lachaise.
Programming

Balancing Performance and Convention 171

markmcb writes "My development team was recently brainstorming over finding a practical solution to the problem that's haunted anyone who's ever used a framework: convention vs. customization. We specifically use Rails, and like most frameworks, it's great for 95% of our situations, but it's creating big bottlenecks for the other 5%. Our biggest worry isn't necessarily that we don't know how to customize, but rather that we won't have the resources to maintain customized code going forward; it's quite simple to update Rails as it matures versus the alternative. What have your experiences been with this problem? Have you found any best practices to avoid digging custom holes you can't climb out of?"
Privacy

In UK, 12M Taxpayers Lost With USB Stick 258

An anonymous reader tips a piece from the UK's Daily Mail that recounts another sad tale of the careless loss of massive amounts of private user data. "Ministers have been forced to order an emergency shutdown of a key Government computer system to protect millions of people's private details. The action was taken after a memory stick was found in a pub car park containing confidential passcodes to the online Government Gateway system, which covers everything from tax returns to parking tickets. An urgent investigation is now under way into how the stick, belonging to the company which runs the flagship system, came to be lost."
Security

UK Court Rejects Encryption Key Disclosure Defense 708

truthsearch writes "Defendants can't deny police an encryption key because of fears the data it unlocks will incriminate them, a British appeals court has ruled. The case marked an interesting challenge to the UK's Regulation of Investigatory Powers Act (RIPA), which in part compels someone served under the act to divulge an encryption key used to scramble data on a PC's hard drive. The appeals court heard a case in which two suspects refused to give up encryption keys, arguing that disclosure was incompatible with the privilege against self incrimination. In its ruling, the appeals court said an encryption key is no different than a physical key and exists separately from a person's will."

Comment What's your app? (Score 5, Insightful) 665

IAABA. (I am a beowulf admin).

Beowulf clusters get built to support your application, not the other way around. Your choice of hardware and OS will depend on the parallel nature of your code. Do you need myrinet, or can you get away with fast ethernet? Will your code even compile under win32? Do the supporting libraries (PVM/MPI/BLAS whatever) run under win32? What about the queuing system?

How are you going to manage the cluster? You need automation, even for small clusters. How easy is it to add a new user, apply a patch or change a bios setting on your cluster without having to plug a keyboard and monitor into each node? What about central logging? How about automated OS installs when you add another 100 nodes when you get your funding?

Oh. Benchmark, benchmark, benchmark. That means your code, running your datasets, on your hardware and OS. Not vendor supplied numbers. If you have a serious hardware vendor, you should be able to wrangle demo mechines off them. Try before you buy.

Slashdot Top Deals

The moving cursor writes, and having written, blinks on.

Working...