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The National Geographic Traveler Magazine photo contest, now in its 25th year, has begun. There is still plenty of time to enter. The entry deadline is Sunday, June 30, at 11:59 p.m. Entrants may submit their photographs in any or all of the four categories: Travel Portraits, Outdoor Scenes, Sense of Place and Spontaneous Moments. The magazine's photo editors showcase their favorite entries each week in galleries. You can also vote for your favorites. "The pictures increasingly reflect a more sophisticated way of seeing and interpreting the world, making the judging process more difficult," says Keith Bellows, magazine editor in chief. (The captions are written by the entrants, some slightly edited for readability.) As always, you can take a look at some of last year's entries and winners.. -- Paula Nelson ( 40 photos total)
OUTDOOR SCENES - Portrait of an Eastern Screech Owl - Masters of disguise. The Eastern Screech Owl is seen here doing what they do best. You better have a sharp eye to spot these little birds of prey. Okeefenokee Swamp, Georgia, USA. (Photo and caption by Graham McGeorge/National Geographic Traveler Photo Contest)     

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The corporate data center is undergoing a major transformation the likes of which haven't been seen since Intel-based servers started replacing mainframes decades ago. It isn't just the server platform: the entire infrastructure from top to bottom is seeing major changes as applications migrate to private and public clouds, networks get faster, and virtualization becomes the norm.

All of this means tomorrow's data center is going to look very different from today's. Processors, systems, and storage are getting better integrated, more virtualized, and more capable at making use of greater networking and Internet bandwidth. At the heart of these changes are major advances in networking. We're going to examine six specific trends driving the evolution of the next-generation data center and discover what both IT insiders and end-user departments outside of IT need to do to prepare for these changes.

Beyond 10Gb networks

Network connections are getting faster to be sure. Today it's common to find 10-gigabit Ethernet (GbE) connections to some large servers. But even 10GbE isn't fast enough for data centers that are heavily virtualized or handling large-scale streaming audio/video applications. As your population of virtual servers increases, you need faster networks to handle the higher information loads required to operate. Starting up a new virtual server might save you from buying a physical server, but it doesn't lessen the data traffic over the network—in fact, depending on how your virtualization infrastructure works, a virtual server can impact the network far more than a physical one. And as more audio and video applications are used by ordinary enterprises in common business situations, the file sizes balloon too. This results in multi-gigabyte files that can quickly fill up your pipes—even the big 10Gb internal pipes that make up your data center's LAN.

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Obama’s in the news a lot, partly because he’s kind of in charge of the world, and partly because he’s outrageously photogenic. Bear in mind it takes a lot more than good-looks to be photogenic — being completely comfortable in your own skin, having great style and being in interesting places helps a lot too, which in Obama’s case is not difficult.

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