dvdme - Slashdot User

Submission + - A Tale of Two Databases: DynamoDB and MongoDB (travispbrown.com)

Submitted by

Travis Brown

on Thursday February 21, 2013 @04:50PM

Travis Brown writes: "In response to Jeff Cogswell's article on how he chose DynamoDB over MongoDB, I wanted to submit a similar article I wrote of how I arrived at an opposite conclusion."

Submission + - Doctors Identify Overused and Unnecessary Medical Procedures

Submitted by

Hugh Pickens writes

on Thursday February 21, 2013 @04:32PM

Hugh Pickens writes writes: "The LA Times reports that in a new report aimed at improving healthcare and controlling runaway costs a coalition of leading medical societies has identified nearly 100 medical procedures, tests and therapies that are overused and often unnecessary. The medical interventions — including early caesarean deliveries, CT scans for head injuries in children and annual Pap tests for middle-aged women — may be necessary in some cases, the physician groups say but often they are not beneficial and may even cause harm. "We are very concerned about the rapidly escalating cost of healthcare," says Dr. Bruce Sigsbee. "This is not healthy for the country, and something has to be done." Each of the specialty medical societies has provided a list of five procedures that physicians and patients should question about the overuse of medical tests and procedures that provide little benefit and in some cases harm. For example, despite the popularity of early caesareans, there is growing evidence that babies born before 39 weeks' gestation have higher risks of learning disabilities and even death. American doctors also order nearly twice as many CT and MRI exams as doctors in other industrialized countries and they perform more knee replacements and deliver more babies by caesarean section. A growing number of experts have concluded that much medical care in the U.S. is wasteful and even dangerous for patients. A 2012 report from the independent Institute of Medicine estimated total waste in the system at 30%, or $750 billion a year. "Millions of Americans are increasingly realizing that when it comes to healthcare, more is not necessarily better," says Dr. Christine K. Cassel."

Graphene Can Be Made With Table Sugar 142

Posted by timothy on Wednesday November 17, 2010 @03:52AM from the let's-grid-it-on dept.

Zothecula writes with this snippet from Gizmag: "There's no doubt that the discovery of graphene is one sweet breakthrough. The remarkable material offers everything from faster, cooler electronics and cheaper lithium-ion batteries to faster DNA sequencing and single-atom transistors. Researchers at Rice University have made graphene even sweeter by developing a way to make pristine sheets of the one-atom-thick form of carbon from plain table sugar and other carbon-based substances. In another plus, the one-step process takes place at temperatures low enough to make the wonder material easy to manufacture."

Comment Re:Security? (Score 1) 154

by dvdme on Friday November 12, 2010 @01:51PM (#34208670) Attached to: Hidden Debug Mode Found In AMD Processors

That is a very interesting point. I recall that when I did some work programming directly to a processor in Assembly, while using the debug mode I was able to break the execution and change any register to another value and then resume it. I know that this was just a school project and the processor I used isn't as complex as an AMD processor is but if the same principle applies, then your comment makes a very good point.

Android Phone Solves Rubik's Cube In 12.5 Seconds 76

Posted by timothy on Thursday November 11, 2010 @05:47PM from the varies-with-the-cube dept.

DeviceGuru writes "A Lego Mindstorms robotics kit controlled by an HTC Nexus One smartphone successfully untangled a Rubik's Cube puzzle in 12.5 seconds at this weeks ARM technical conference in Silicon Valley. The current 3x3x3 cube-solvers's 15-second average represents a substantial improvement over the 25-second solutions of an earlier version, which was powered by a circa-2006 Nokia N95 smartphone, thanks to a faster (1GHz) CPU, more RAM, and revamped cube-solving algorithms. ARM Engineer David Gilday, who created the robotic cube-solver, claims the current version's algorithms can handle cube complexities up to 100x100x100, assuming he build the mechanics. In terms of racing humans, Gilday says the Lego robotics kits can only manage around 1.5 moves per second, whereas human players can make between 5 and 6 moves per second, amazingly enough." Update: 11/12 03:45 GMT by T : Apologies to creator David Gilday, whose name was earlier misspelled.

Can Windows, OS X and Fedora All Work Together? 375

Posted by timothy on Thursday November 11, 2010 @05:00PM from the like-to-buy-the-world-a-coke dept.

greymond writes "In my ever growing job responsibilities, I've recently been tasked with documenting our organization's IT infrastructure, primarily focusing on cost analysis of our hardware leases and software purchases. This is something that has never been done in our organization before and while it's moving along slowly, I'm already seeing some places where we could make improvements. Once completed, I see this as an opportunity to bring up the topic of migrating the majority of our office from Windows 7 to Linux and from Exchange to Gmail. However, this would result in three departments each running a different system: Windows, OS X, and most likely Fedora. Has anyone worked in or tried to set up an environment like this? What roadblocks did you run into? Is this really feasible or should I just continue to focus on the cutbacks that don't require OS changes? (The requirement for having three different systems is that the vast majority of our administration, who rely solely on an install of Microsoft Windows, Word and Excel, are savvy enough that if they came in and saw Gnome running on Fedora with Open Office they'd pick it up fast. However, our marketing department is composed entirely of Apple systems, and the latest Adobe Creative Suite doesn't seem to all work under Wine. The biggest issue is with the Sales department though, as they rely on a proprietary sales platform that is Windows only — and generally, sales personal give the biggest push back when it comes to organizational changes.)"

Lizard Previously Unknown To Science Found On Vietnam Menu 133

Posted by samzenpus on Thursday November 11, 2010 @04:08PM from the try-the-bigfoot-burger dept.

eldavojohn writes "A lizard long served on the menu in the Mekong Delta has recently caught the attention of scientists when it was noted that all animals in the species appeared identical as well as female. The species appears to be a hybrid of two other species (like a mule or liger). But the curious thing is that this hybrid isn't sterile — it reproduces asexually. The species, known for some time in Vietnam, has now officially been named Leiolepis ngovantrii."

Scientists Turn Skin Into Blood 229

Posted by samzenpus on Sunday November 07, 2010 @11:13PM from the horror-movie dept.

Breakthru writes "In an important breakthrough, scientists at McMaster University have discovered how to make human blood from adult human skin. The discovery, published in the prestigious science journal Nature today, could mean that in the foreseeable future people needing blood for surgery, cancer treatment or treatment of other blood conditions like anemia will be able to have blood created from a patch of their own skin to provide transfusions. Clinical trials could begin as soon as 2012."

Submission + - The placebo effect not just on drugs

Submitted by dvdme on Sunday November 07, 2010 @09:03PM

dvdme writes: It seams like the placebo effect isn't just valid on drugs. It's also a fact on elevators, offices and traffic lights. An article by Greg Ross on http://www.futilitycloset.com/2010/11/04/placebo-buttons/ says, and I quote:
"In most elevators installed since the early 1990s, the “close door” button has no effect. Otis Elevator engineers confirmed the fact to the Wall Street Journal in 2003.

Similarly, many office thermostats are dummies, designed to give workers the illusion of control. “You just get tired of dealing with them and you screw in a cheap thermostat,” said Illinois HVAC specialist Richard Dawson. “Guess what? They quit calling you.”

In 2004 the New York Times reported that more than 2,500 of the 3,250 “walk” buttons in New York intersections do nothing. “The city deactivated most of the pedestrian buttons long ago with the emergence of computer-controlled traffic signals, even as an unwitting public continued to push on.”

Submission + - Net pioneers: Open Internet should be separate (goodgearguide.com.au)

Submitted by

angry tapir

on Sunday November 07, 2010 @08:30PM

angry tapir writes: "The U.S. Federal Communications Commission should allow for an open Internet separate from specialized services that may prioritize IP traffic, a group of Internet and technology pioneers has recommended. The document, filed in response to an FCC request for public comments on proposed network neutrality rules, steers clear of recommending what rules should apply to the open Internet. Among the tech experts signing the document are Steve Wozniak, cofounder of Apple; Bruce Perens, founder of the open-source software movement; Clay Shirky, an author and lecturer at New York University's Interactive Telecommunications Program; and David Reed, a contributor to the development of TCP/IP and an adjunct professor at the Massachusetts Institute of Technology Media Lab."

Major Security Holes Found In Mobile Bank Apps 107

Posted by Soulskill on Friday November 05, 2010 @06:04PM from the and-you-can-take-that-to-the-uh-nevermind dept.

NeverVotedBush writes with this excerpt from CNet: "A security firm disclosed holes today in mobile apps from Bank of America, USAA, Chase, Wells Fargo and TD Ameritrade, prompting a scramble by most of the companies to update the apps. ... Specifically, viaForensics concluded that: the USAA's Android app stored copies of Web pages a user visited on the phone; TD Ameritrade's iPhone and Android apps were storing the user name in plain text on the phone; Wells Fargo's Android app stored user name, password, and account data in plain text on the phone; Bank of America's Android app saves a security question (used if a user was accessing the site from an unrecognized device) in plain text on the phone; and Chase's iPhone app stores the username on a phone if the user chose that option, according to the report. Meanwhile, the iPhone apps from USAA, Bank of America, Wells Fargo, and Vanguard and PayPal's Android app all passed the security tests and were found to be handling data securely."

Firefox 4 Beta For Mobile Now Faster and Sleeker 70

Posted by Soulskill on Friday November 05, 2010 @12:55PM from the almost-like-some-sort-of-fox dept.

An anonymous reader writes "Mozilla has released Beta 2 of Firefox 4 for Mobile. Some notable improvements over the initial beta release include 'reduced memory usage, improved text rendering and a 60% install size reduction on Android (from around 43 MB to 17 MB).' Mozilla also makes mention that 'actions like panning and zooming are faster and smoother, and page load times are reduced from our previous beta. On Android 2.2, we're now around 25% faster on the SunSpider JavaScript benchmark than the stock browser.' A future beta release will enable GL acceleration, which should further improve the performance of the browser."

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