Source: http://feeds.celebritybabies.com/~r/celebrity-babies/~3/M74TskmFTE0/
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Saturday, February 2, 2013
Fab Sale Roundup: GILT Baby & Kids, Belabumbum and More!
Check out our roundup of this week's best mommy and baby deals.
Owl mystery unravelled: Scientists explain how bird can rotate its head without cutting off blood
Owl mystery unravelled: Scientists explain how bird can rotate its head without cutting off blood
Friday, February 1, 2013Medical illustrators and neurological imaging experts at Johns Hopkins have figured out how night-hunting owls can almost fully rotate their heads - by as much as 270 degrees in either direction - without damaging the delicate blood vessels in their necks and heads, and without cutting off blood supply to their brains.
In what may be the first use of angiography, CT scans and medical illustrations to examine the anatomy of a dozen of the big-eyed birds, the Johns Hopkins team, led by medical illustrator Fabian de Kok-Mercado, M.A., a recent graduate student in the Department of Art as Applied to Medicine, found four major biological adaptations designed to prevent injury from rotational head movements. The variations are all to the strigid animals' bone structure and vascular network needed to support its top-heavy head. The team's findings are acknowledged in the Feb.1 issue of the journal Science, as first-place prize winners in the posters and graphics category of the National Science Foundation's 2012 International Science & Engineering Visualization Challenge.
"Until now, brain imaging specialists like me who deal with human injuries caused by trauma to arteries in the head and neck have always been puzzled as to why rapid, twisting head movements did not leave thousands of owls lying dead on the forest floor from stroke," says study senior investigator and interventional neuroradiologist Philippe Gailloud, M.D. "The carotid and vertebral arteries in the neck of most animals - including owls and humans - are very fragile and highly susceptible to even minor tears of the vessel lining," adds Gailloud, an associate professor in the Russell H. Morgan Department of Radiology at the Johns Hopkins University School of Medicine.
Sudden gyrations of the head and neck in humans have been known to stretch and tear blood vessel linings, producing clots that can break off and cause a deadly embolism or stroke. Researchers say these injuries are commonplace, often resulting from whiplashing car accidents, but also after jarring roller coaster rides and chiropractic manipulations gone awry.
To solve the puzzle, the Johns Hopkins team studied the bone structure and complex vasculature in the heads and necks of snowy, barred and great horned owls after their deaths from natural causes. An injectible contrast dye was used to enhance X-ray imaging of the birds' blood vessels, which were then meticulously dissected, drawn and scanned to allow detailed analysis.
The most striking team finding came after researchers injected dye into the owls' arteries, mimicking blood flow, and manually turned the animals' heads. Blood vessels at the base of the head, just under the jaw bone, kept getting larger and larger, as more of the dye entered, and before the fluid pooled in reservoirs. This contrasted starkly with human anatomical ability, where arteries generally tend to get smaller and smaller, and do not balloon as they branch out.
Researchers say these contractile blood reservoirs act as a trade-off, allowing owls to pool blood to meet the energy needs of their large brains and eyes, while they rotate their heads. The supporting vascular network, with its many interconnections and adaptations, helps minimize any interruption in blood flow.
"Our in-depth study of owl anatomy resolves one of the many interesting neurovascular medical mysteries of how owls have adapted to handle extreme head rotations," says de Kok-Mercado, now a scientific illustrator and animator at the Howard Hughes Medical Institute.
Moreover, says Gailloud, "our new study results show precisely what morphological adaptations are needed to handle such head gyrations and why humans are so vulnerable to osteopathic injury from chiropractic therapy. Extreme manipulations of the human head are really dangerous because we lack so many of the vessel-protecting features seen in owls."
The first anatomical variation they discovered was in the owl neck, where one of the major arteries feeding the brain passes through bony holes in the vertebrae. The hollow cavities were approximately 10 times larger in diameter than the vertebral artery traveling through it. The researchers say the extra space in the transverse foraminae, as the holes surrounding the vertebral arteries are known, creates a set of cushioning air pockets that allow the artery to move around when twisted. Twelve of the 14 cervical vertebrae in the owl's neck were found to have this adaptation.
"In humans, the vertebral artery really hugs the hollow cavities in the neck. But this is not the case in owls, whose structures are specially adapted to allow for greater arterial flexibility and movement," says de Kok-Mercado.
The team also found that the owl's vertebral artery enters the neck higher up than in other birds - going in at the owl's 12th cervical vertebrae instead of the owl's 14th cervical vertebrae - allowing for more vessel room and slack.
Among de Kok-Mercado and Gailloud's other findings were small vessel connections between the carotid and vertebral arteries - not usually seen in adult humans - that allow blood to be exchanged between the two blood vessels. The researchers say these so-called anastomoses, including a vessel connection called a patent trigeminal artery, allow for uninterrupted blood flow to the brain, even if one route is blocked during extreme neck rotation.
Researchers next plan to examine hawk anatomy to see if other bird species possess the same adaptive features for head rotation.
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Johns Hopkins Medicine: http://www.hopkinsmedicine.org
Thanks to Johns Hopkins Medicine for this article.
This press release was posted to serve as a topic for discussion. Please comment below. We try our best to only post press releases that are associated with peer reviewed scientific literature. Critical discussions of the research are appreciated. If you need help finding a link to the original article, please contact us on twitter or via e-mail.
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Friday, February 1, 2013
NetCitadel Pushes Security Intelligence into the Cloud
Gathering intelligence is one thing, finding a place to store and distribute it is another.
NetCitadel, a startup that came out of stealth mode this week, unfurled a OneControl Security Orchestration Platform that provides a central repository for collecting data about security events across the enterprise.
According to NetCitadel CEO Mike Horn, most IT organizations can?t afford to set and deploy complex security information event management (SIEM) systems on their own. And even if they do, there are no processes in place for delivering actionable intelligence.
Horn says the OncControl Security Orchestration Platform is a virtual appliance that creates an event bus over which a common security event framework can be extended across both physical and virtual IT systems. That includes the deployment of any new systems on the corporate network that don?t comply with established security policies.
Most importantly, Horn says that because that security intelligence is delivered as a service, the OneControl Security Orchestration Platform can be deployed on top of existing systems. In contrast, rival providers of security intelligence applications require IT organizations to either deploy expensive systems on premise, or upgrade their existing network infrastructure to access new analytics capabilities. The OneControl Security Orchestration Platform conversely makes uses of RESTful APIs to collect data from both existing and new systems across the enterprise, says Horn. Any solution that requires an organization to rip and replace existing systems simply won?t be accepted by IT organizations.
That information, adds Horn, is then used to not only identify potential threats, but also identify where the most risk is based on where business logic has been deployed.
Recognizing the importance of preventing all security threats from getting past the network perimeter, vendors are now rushing to provide security intelligence systems that automate the process of identifying potential threats. The assumption is that once those threats are identified, remediating those issues is a comparatively simple process.
It?s hard to imagine how IT organizations have coped this far without a comprehensive approach to security intelligence. As is often the case with all-things IT, an ounce of prevention is always worth several pounds of cure, so maybe the time has finally come to file security intelligence under the heading of better late than never.
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Video: Republican-led wars, from Vietnam to Iraq
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Source: http://video.msnbc.msn.com/hardball/50671290/
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What school foods are in and what foods are out
WASHINGTON (AP) ? The Agriculture Department is proposing new nutritional rules that would apply to most all foods sold in schools. The rule would apply to "a la carte" lines in school cafeterias, vending machines, snack bars and any other food sold regularly on campus. It wouldn't apply to fundraisers, after-school concession stands, class parties or foods brought from home.
Most every food sold in school would be subject to fat, calorie, sugar and sodium limits. Snack foods would have to be under 200 calories and have some nutritional value. All drinks would be limited to 12 oz. portions in high schools and middle schools, and 8 oz. portions in elementary schools.
The following are examples of what could be in and out under the rules, provided the items meet or don't meet all of the requirements.
What's in:
Baked potato chips
Granola bars
Cereal bars
Trail mix
Dried fruits
Fruit cups
Yogurt
Whole grain-rich muffins
100 percent juice drinks
Diet soda (high schools)
Flavored water (high schools)
Lower-calorie sports drinks (high schools)
Unsweetened or diet iced teas (high schools)
100 percent juice popsicles
Baked lower-fat French fries
Healthier pizzas with whole grain crust
Lean hamburgers with whole wheat buns
What's out:
Candy
Snack cakes
Most cookies
Pretzels
20 oz. drinks
High calorie sodas
Many high-calorie sports drinks
Juice drinks that are not 100 percent juice
Most ice cream and ice cream treats
Greasy pizza and other fried, high-fat foods in the lunchroom
Source: http://news.yahoo.com/school-foods-foods-181711283--finance.html
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Google Earth's tour guide feature swells to the tune of 100K new attractions
Hate flying? Google Earth could keep you visiting attractions anyway for the next, oh, rest of your life or so, thanks to 100,000-plus new tours it just added across sites and cities in over 200 countries. That's on top of the 11,000 tours that came with its recent launches on iOS, Android and more recently, the desktop app. The option provides a virtual video flyby of the selected area, adds Wikipedia snippets and concludes with user-provided Panoramio photos of the area. You'll need not lift a finger to get it, as all the tours are automatically available -- provided you're running the current Google Earth 7.0 for desktop or mobile. Check the video after the break to see how to use it.
Filed under: Cellphones, Desktops, Tablets, Software, Google
Via: TNW
Source: Google Earth Blog
Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/lelA_1d0OmE/
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Samsung fined $1,000 over fatal gas leak, according to Yonhap News
Korea's Yonhap News Agency is reporting that Samsung will be fined a nominal 1 million won (roughly $1,000) for not reporting its recent gas leak quickly enough. The incident led to the death of a maintenance contractor who was brought in to fix a pipe leaking hydrofluoric acid gas at one of Samsung's semiconductor plants. Police are said to be imposing the fine on both Samsung and its subcontractor for violating a law stipulating that such chemical leaks must be "promptly" reported to the authorities. It appears no official alert was given until the contractor died in hospital. Police say they're continuing to investigate how the fatal accident happened and that it's clear "someone died due to poor administration," so this isn't the end of the matter -- a fuller report is expected within two weeks.
Filed under: Samsung
Source: Yonhap News
Source: http://www.engadget.com/2013/01/30/samsung-fined-over-gas-leak/
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