Source: http://news.feedzilla.com/en_us/stories/politics/top-stories/290331925?client_source=feed&format=rss
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Monday, March 11, 2013
Biological tooth replacement -- a step closer
Monday, March 11, 2013
Scientists have developed a new method of replacing missing teeth with a bioengineered material generated from a person's own gum cells. Current implant-based methods of whole tooth replacement fail to reproduce a natural root structure and as a consequence of the friction from eating and other jaw movement, loss of jaw bone can occur around the implant. The research is led by Professor Paul Sharpe, an expert in craniofacial development and stem cell biology at King's College London and published in the Journal of Dental Research.
Research towards achieving the aim of producing bioengineered teeth ? bioteeth ? has largely focussed on the generation of immature teeth (teeth primordia) that mimic those in the embryo that can be transplanted as small cell 'pellets' into the adult jaw to develop into functional teeth.
Remarkably, despite the very different environments, embryonic teeth primordia can develop normally in the adult mouth and thus if suitable cells can be identified that can be combined in such a way to produce an immature tooth, there is a realistic prospect bioteeth can become a clinical reality. Subsequent studies have largely focussed on the use of embryonic cells and although it is clear that embryonic tooth primordia cells can readily form immature teeth following dissociation into single cell populations and subsequent recombination, such cell sources are impractical to use in a general therapy.
Professor Sharpe says: 'What is required is the identification of adult sources of human epithelial and mesenchymal cells that can be obtained in sufficient numbers to make biotooth formation a viable alternative to dental implants.'
In this new work, the researchers isolated adult human gum tissue from patients at the Dental Institute at King's College London, grew more of it in the lab, and then combined it with the cells of mice that form teeth. By transplanting this combination of cells into mice the researchers were able to grow hybrid human/mouse teeth containing dentine and enamel, as well as viable roots.
Professor Sharpe concludes: 'Epithelial cells derived from adult human gum tissue are capable of responding to tooth inducing signals from embryonic tooth mesenchyme in an appropriate way to contribute to tooth crown and root formation and give rise to relevant differentiated cell types, following in vitro culture.
'These easily accessible epithelial cells are thus a realistic source for consideration in human biotooth formation. The next major challenge is to identify a way to culture adult human mesenchymal cells to be tooth-inducing, as at the moment we can only make embryonic mesenchymal cells do this.'
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King's College London: http://www.kcl.ac.uk
Thanks to King's College London 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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Source: http://www.labspaces.net/127227/Biological_tooth_replacement____a_step_closer
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Five Best Laptop Stands
Working on a laptop for long hours can be killer on your back, neck, and overall posture. An easy and affordable way to upgrade the ergonomics of your workspace is to grab a simple laptop stand, and whether you build one of your own on the cheap or buy one with a fancy design or added features, it's a great idea to get one if you spend long hours hunched over a tiny screen. Here's a look at five of the best laptop stands, nominated by you, our readers.
Earlier this week we asked you which laptop stands you thought were the best. You weighed in with a number of great options, models, and suggestions for the perfect laptop stand setup, many of which were specific to your particular workspace. Still, a few options rose above the rest. Let's take a look at them.
Rain Design mStand
The mStand Laptop Stand by Rain Design was built for Macbook laptops, but it works just fine for any laptop model. It's a simple, solid piece of aluminum that's angled perfectly to keep your laptop elevated, cool, and screen opened to just the right angle so you can see it while you're working. The new mStand 360 has an adjustable base so you can swivel your laptop from side to side while you work to change the view. It's meant more for use with a external keyboard and monitor, but presumably could be used with a standing desk setup. If you are in to Apple systems, it'll fit right in on your desk. If you're not, it'll still look sharp. The mStand retails for $60 (but is available for as little as $45 at Amazon) and the mStand 360 goes for closer to $60.
IKEA BRADA
The IKEA BRADA is an inexpensive laptop support that comes in a couple of different designs, but both are affordable. The fold-out desk style stand with spaces in the sides for cable management are about $10, and the angled model shown here is only $4. Both models aren't exactly adjustable or offer any special features (although cable management slots are a nice bonus) but they get the job done, can be hacked easily, and can also be added to a DIY setup for just the right fit.
Griffin Elevator Laptop Stand
The Griffin Elevator laptop stand is an elegant, space-saving setup that offers plenty of space in the center and around the sides for other devices, keyboard storage, and cable management. The brushed aluminum design and rubberized feet keep your laptop in place while elevating it, and while its not height adjustable, it does bring your laptop up to a workable height whether you choose to use it there (perhaps with a standing desk setup) or connect an external keyboard to it. It also has an open design to keep your laptop cool, and while it's another laptop stand that was designed for Macbooks, but it works just as well with any model of laptop. The Elevator stand will set you back $40, either direct from Griffin or over at Amazon.
Cooler Master NotePal U2
If you're looking for a laptop stand that's also designed to keep a hot laptop cool, the Cooler Master NotePal U2 can do the job. It comes in a number of models, and can accommodate multiple adjustable cooling fans designed to keep your system cool while in use. Even without the fans, the mesh material and elevated design elevates your laptop for easier use and cooling, and when you're not using it you can disassemble the stand to use as a protective carrying case for your laptop to keep it safe while you travel. It's available in a number of flavors and sizes depending on how many fans you want with it and the size of the laptop you're using, but expect to spend around $20 at Amazon for most models.
Do It Yourself
Of course, to get the most truly custom and functional option for your workspace, you have to build your own laptop stand. Whether it's just some books under your laptop or a fancy DIY option like some of the options we've shown you before, making your own is the best way to really get the height you want and to get it to fit into the spacey ou have to work with. Plus, many of you noted that it's just simpler to use something you have lying around than trying to shoehorn something potentiall expensive into your available space. Plus, you can go from a simple stand to charging ports and height adjustability pretty quickly depending on the level of effort you want to put into it. Photo by Craig Lloyd.
Now that you've seen the top five, it's time to vote for the best option of the top five.
Honorable mentions this week go out to the $28 3M Vertical Notebook Riser, which many of you praised for being height adjustable, affordable, ergonomically correct, and perfect for using your laptop with an externally connected keyboard. Many of you also praised The Crane Laptop Stand, an incredibly adjustable, customizable laptop stand and workstation that can be tweaked so you can use your laptop while elevating it or set to the perfect working height for equipment underneath or your specific needs. You'll pay for the ultimate in customizability though, the Crane Stand retails for $170, and the Pro version retails for $200.
Have something to say about one of the contenders? Want to make the case for your personal favorite, even if it wasn't included in the list? Remember, the top five are based on your most popular nominations from the call for contenders thread from earlier in the week. Don't just complain about the top five, let us know what your preferred alternative is?and make your case for it?in the discussions below.
The Hive Five is based on reader nominations. As with most Hive Five posts, if your favorite was left out, it's not because we hate it?it's because it didn't get the nominations required in the call for contenders post to make the top five. We understand it's a bit of a popularity contest, but if you have a favorite, we want to hear about it. Have a suggestion for the Hive Five? Send us an email at tips+hivefive@lifehacker.com!
Title photo by Mike Sisk.
Source: http://feeds.gawker.com/~r/lifehacker/full/~3/CvR8QyEtbK4/five-best-laptop-stands
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Western powers congratulate Kenya on poll, not Kenyatta
NAIROBI (Reuters) - Western capitals on Saturday applauded Kenya's peaceful vote but avoided naming president-elect Uhuru Kenyatta, whose election they had said would complicate ties because of the charges of crimes against humanity he faces.
Foreign diplomats in the Kenyan capital, Nairobi, had made it clear in the run-up to the poll that it could not be business as usual when dealing with Kenyatta if he triumphed in the poll, due to his indictment by the International Criminal Court.
"We stand with you at this historic moment and will continue to be a strong friend and ally of the Kenyan people," U.S. Secretary of State John Kerry said in a statement.
While Kerry congratulated "all those elected to office", he did not mention Kenyatta, who won more than half the vote. Kerry's words echoed a statement by President Barack Obama ahead of the March 4 election.
But Kenyatta's supporters may see them as a climbdown from the words of Ambassador Johnnie Carson, Washington's top diplomat to Africa, who before the vote cautioned that "choices have consequences" - seen as a clear hint about America's preferred outcome.
Western powers have a delicate path to tread in their dealings with Kenyatta, who is accused of organizing tribal violence in the wake of the disputed 2007 election.
Citing the need for the organizers of the deadly fighting five years ago to be held to account, they are determined that the ICC process be seen through.
But they will be reluctant to jeopardize long-held diplomatic, trade and military ties with Kenya, the lynchpin of east Africa's regional economy and a key ally in the U.S.-led war against militant Islam.
Kenyatta said in his acceptance speech that he and his team would cooperate with all international institutions and that he expected the international community to respect Kenya's sovereignty.
He did not mention the ICC directly, but has previously said that he and his running mate, William Ruto who is also indicted, would cooperate with the court to clear their names.
The real test of Western resolve will come if Kenyatta turns his back on the tribunal, like Sudanese President Omar Hassan al-Bashir.
A spokesman for the ICC, Fadi El-Abdallah, said: "Until now, Kenyatta has been cooperating with the court and we do hope this will continue."
Western diplomats have worked closely on coordinating their stances on Kenyatta. Statements from Brussels, London and Berlin all appeared to follow a similar formula and tiptoed around Kenyatta's name.
Germany said it expected Kenya to uphold its international duties. "This specifically includes cooperation with the International Criminal Court," German Foreign Minister Guido Westerwelle said in a statement.
A statement from Uganda's veteran president, Yoweri Museveni, highlighted the gulf between Western governments and many in Africa, where the ICC is frequently accused of an anti-Africa agenda.
"I am writing to congratulate you on the historic victory you achieved by winning the tightly contested presidential election," Museveni said, adding that the election "had redeemed the honor of Kenya and Africa".
(Editing by Edmund Blair and Stephen Powell)
Source: http://news.yahoo.com/western-powers-congratulate-kenya-poll-not-kenyatta-171926915.html
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Thursday, March 7, 2013
Bidding on a Foreclosed home - Zillow Real Estate Advice
Hi, I am at a HUD home that is listed at 79,000 but the market value is closer to 135,000. My?Realtor?told me that the listing agent posted the property at a low price in order to get interest in the property. Is there a good way to decide what to bid on the property in order to have a good chance of winning.?
Source: http://www.zillow.com/advice-thread/Bidding-on-a-Foreclosed-home/481553/
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EU Antitrust Regulators Fine Microsoft $731M
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Source: http://video.foxbusiness.com/v/2205940888001/eu-antitrust-regulators-fine-microsoft-731m/
Wednesday, March 6, 2013
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