Source: http://feeds.gawker.com/~r/gizmodo/full/~3/kz0Y_iXKFZU/calm-down-nobody-is-taking-over-the-internet
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Monday, 3 December 2012
Calm Down: Nobody Is Taking Over the Internet
Bismuth provides perfect dance partners for quantum computing qubits
ScienceDaily (Dec. 2, 2012) ? New research has demonstrated a way to make bismuth electrons and nuclei work together as qubits in a quantum computer.
The discovery, published in Nature Materials, takes us a key step further to creating practical quantum computing which could tackle complex programs that would otherwise take the lifetime of the universe to finish.
The collaboration partners are based in the University of Warwick, UCL, ETH Zurich and the USA Sandia National Labs.
Information on our normal computers is stored as bits, which are either ones or zeros. Quantum bits work differently in that each quantum bit can try out being a one and a zero at the same time, which makes them much more powerful for solving certain problems.
Researchers have explored influencing the direction of spin in electrons to create those states but this approach has had its challenges.
Dr Gavin Morley from the University of Warwick's Department of Physics said: "Bismuth atoms in silicon crystals are great at working as quantum bits. Each bismuth atom has a spare electron, which has a "spin" that can be influenced by magnets.
"If we put the electron into a magnet, it lines up with the magnetic field, behaving like a compass needle.
"We can control the direction that the electron is pointing in, using microwaves. Microwaves let us flip the direction the electron is pointing in, and these "up and down" directions are what constitute the "one and zero" in our quantum bit.
"Unfortunately, our electron is constantly prone to interference from nearby atoms that are out of our control.
"And the more time we waste, the greater the chance that our poor electron will suffer from interference, making it unusable to us."
"Now, this electron is coupled to the bismuth nucleus, which has its own spin: a smaller compass needle. Using this as an extra quantum bit and flipping it at the same time as our electron, would really help out. We can control this smaller compass needle too, but as it's smaller, it takes longer to control, and we need to use radiowaves instead of microwaves to do this."
"The good news is that as it's slow to respond, our bismuth nucleus's smaller compass needle suffers less from interference by nearby rogue atoms than our electron's larger compass needle. Unfortunately in the time we spend controlling our bismuth nucleus, these rogue atoms interfere with our electron."
"However we found that if we reduce the magnetic field just enough, then the electron and the nucleus become hybridized. Our new experiments at ETH Zurich show that through hybridisation, we can flip both compass needles easily using microwaves."
Dr Morley compares it to the magnetic resonance imaging we find in hospitals.
He said: "MRI works by controlling the nuclear spins in your body.
"We have hybridized electron and nuclear spins and found that this makes it easier to control them.
"It's an easy new way to make slow and fast quantum bits work together. There are lots more challenges to face before anyone has a working computer with enough quantum bits to be useful, but with this hybridization as part of a computer's design, we are one step closer."
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The above story is reprinted from materials provided by University of Warwick, via EurekAlert!, a service of AAAS.
Note: Materials may be edited for content and length. For further information, please contact the source cited above.
Journal Reference:
- Gavin W. Morley, Petra Lueders, M. Hamed Mohammady, Setrak J. Balian, Gabriel Aeppli, Christopher W. M. Kay, Wayne M. Witzel, Gunnar Jeschke, Tania S. Monteiro. Quantum control of hybrid nuclear?electronic qubits. Nature Materials, 2012; DOI: 10.1038/nmat3499
Note: If no author is given, the source is cited instead.
Disclaimer: Views expressed in this article do not necessarily reflect those of ScienceDaily or its staff.
Source: http://feeds.sciencedaily.com/~r/sciencedaily/~3/PHR0YYBMToM/121202164321.htm
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Sunday, 2 December 2012
Ally's gift picks: 2012 holiday guide
This season we're asking everyone here at iMore to share some of their favorite gift ideas. Sure, there'll be iPhone, iPad, and Mac apps and accessories included on everyones' lists, just as you'd expect, but there'll also be other stuff, great, geeky, gorgeous other stuff that's as multi-facted and fun as the people themselves. It's my turn and I've found a couple must-haves for the gadget fanatics you'll be shopping for this year.
Apple TV
Out of all the Apple devices that we've got floating around in our home, our Apple TV probably gets just as much use as our iPhones. It makes everything from streaming Netflix and Hulu to accessing your purchased content super simple. When we have friends and family over it's simple to share YouTube videos from our iPhones, iPads, and other devices straight to the larger screen.
This year's Apple TV offers full 1080p making the viewing experience even better. There isn't a day that goes by that we don't use our Apple TV whether it's to stream music, access purchased movies, rent content, browse YouTube, or stream our favorite shows on Netflix and Hulu. At only $99, it's a no brainer if you've got a friend or relative that already utilizes other Apple products in their home. It'll make the perfect add-on companion and they'll love you for it.
- $99 - Buy Now
Mophie Powerstation
I've never been a fan of battery cases since they add so much bulk. Other solutions like the Mophie Powerstation not only give you a portable way to charge your iPhone (or any smartphone for that matter), but other devices as well. Since the input is simply USB, you can use your existing cables and charge whatever you'd like. Share it with friends, and pass it around.
If you know someone who is always complaining about battery life, the Mophie Powerstation makes a great gift regardless what smartphone or tablet they have. They also pack a lot more power than a standard battery case backup can which means more charges.
- $79.95 - Buy Now
Lifeproof for iPhone
Running a business that specializes in iPhone, iPad, and iPod repair means I see a lot of water damaged devices. Lifeproof cases, if installed correctly, can eliminate water damage 100% of the time. If you have a friend or family member who is particularly clumsy with their iPhone, a Lifeproof case can make a great gift.
Parents can also rest assured that if they're buying an iPhone for a child this Christmas that their investment will be protected. Not only does Lifeproof protect against liquid damage, it also provides a fair amount of protection against drops.
- $79.99 - Buy Now
iPad mini
When I first purchased my iPad mini I honestly did not think I'd ever use it. I figured I'd leave it at the office for work use but continue to use my iPad 3 like always. Boy was I wrong.
I've never found a way to actually integrate the iPad into my daily life other than writing on it while out of the office and I only ever did that when a computer wasn't within reach. While I still prefer the standard size iPad with my keyboard case for writing, literally everything else is better on the iPad mini. I've actually found myself browsing on it a lot more than I ever did on any other iPad I've owned. The size is perfect for reading in bed or in a car and casually surfing the web on the couch.
The iPad mini has become my go-to device for browsing, reading, playing games, and reading emails while my iPad 3 has remained at the office for heavier stuff. If you have a loved one who desperately wants an iPad for personal use, you can't go wrong with the iPad mini.
- Starting at $329 - Buy Now
Nokia Lumia 920
I've never been a huge fan of the Android platform and the first few iterations of Windows Phone didn't really pique my interest but I've always been a fan of Nokia hardware back to the N95. It is still one of my favorite phones I've ever owned to date. It was amazing for its time.
Windows Phone has come a long way in my opinion and Nokia makes some of the best hardware and mobile cameras in the industry and the Nokia Lumia 920 is no exception. Everything from the screen to the camera to wireless charging makes it one of the best Windows Phone offerings to date.
While I have no intention of giving up my iPhone 5, there are people out there that don't want Apple products in their ecosystem. If you've got someone in your life that's really hoping for a new phone this holiday season but they don't want an iPhone, I'm positive they'd be glad to receive a Lumia 920. You can pick one up unlocked and contract free for $599 or on contract with AT&T for as little as $99.
- $599 - Unlocked Nokia Lumia 920 - Buy Now
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Because a girl can't live on gadgets alone!
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Source: http://feedproxy.google.com/~r/TheIphoneBlog/~3/mzqqV7MYhXo/story01.htm
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Ayala Land Real Estate Philippines ? Kasa Luntian Tagaytay ...
How?s the Weather?
?Sweet Rainy Season?
Where do you Find the HOT Bulalo and HOT Brewed Coffee?
Why not pamper your self in a SPA?
Explore the Timeless and Relaxing quite side of TAGAYTAY
Warmly anticipating your arrival.
Less than 5 minutes from the Tagaytay Rotunda
We Look for ways to give you the LIFE you deserve.
The leisure condo neighbourhood will be a low-rise and low-density community with 5-7 floors and 11 units per floor only. KASA LUNTIAN shall provide an intimate refuge from the demands of the city.
True to its leisure proposition, the ambience within the development will be relaxed and casual, filled with lush and naturally landscaped open spaces and amenities geared toward passive recreation, family gatherings, and laid-back social encounters amid tranquil mountain atmosphere.
Kasa Luntian ? Location Map
Kasa Luntian Location Map
Tagaytay City is considered as the country?s second summer capital because of its crisp and cool climate. Metro Manila?s most frequented leisure playground and weekend vacation. Located an hour and a half away from the metropolis and a quick getaway from the pressures of life back in the busy urban jungle,Tagaytay spells leisure all year round?
Accessibly located along the Tagaytay-Calamba National Road and between 2 major throughfares of the Sta. Rosa-Tagaytay Road and Emilio Aguinaldo Highway.
KASA LUNTIAN will be a 3.8-hectare property centrally located within the popular leisure destination of Tagaytay City.
While it will be accessibly positioned, it will be situated in the quiet side of the city, away from the tourist congested areas. Located on the other side of the ridge, the site has very limited viewing opportunities of Taal Lake but will instead provide its own sense of first class charm and discovery that will be unique to Kasa Luntian?
Kasa Luntian ? Amenities and Master Plan
Kasa Luntian ? Floor Plans
Kasa Luntian Tagaytay Availability And Computations (as of December 2, 2012)
Kasa Luntian Availability Chart December 2, 2012
?
For Inquiries, Please Call JP, Tony or Vicky Reyes at 930-7635, 211-1970, 453-8373, 425-2979 or 09178653689 or 09173138271 or 09173138273 or 09173138278 | APReyes Realty Investment | Feel free to ask us questions about Leisure Condo units for sale in Kasa Luntian Tagaytay, we will be happy to answer them for you. Please contact only the undersigned for viewing appointments or site tripping. Or INQUIRE NOW by CLICKING HERE.
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Obama Says Not Acceptable For - Yeshiva World News
Obama Says Not Acceptable For ?Handful Of Republicans? To Block Fiscal Deal
(Friday, November 30th, 2012)
Facing a year-end fiscal crunch, Obama used a visit to a toy factory to try to drum up support among Americans and pressure Republicans in Congress to agree to his proposal to let the tax cuts expire for Americans who make more than $250,000 a year.
Obama blamed Republicans who control the House of holding up a deal.
?It?s not acceptable to me and I don?t think it?s acceptable to you for just a handful of Republicans in Congress to hold middle-class tax cuts hostage simply because they don?t want tax rates on upper income folks to go up,? Obama said.
(Reuters)
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Source: http://www.theyeshivaworld.com/?p=147740
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Saturday, 1 December 2012
Apple?s iPad Mini And 4th Gen iPad Arrive In China December 7, iPhone 5 Follows December 14
Apple has just announced the official release date of the iPad mini, 4th generation iPad and iPhone 5 in China. The tablets will go on sale next Friday, December 7 in that country, and the iPhone 5 will arrive on December 14, a week afterwards. This comes following news that the iPhone 5 has met all the regulatory requirements in China it needed to go on sale.Source: http://feedproxy.google.com/~r/Techcrunch/~3/Mj-v2EbKkwY/
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How, in the animal world, a daughter avoids mating with her father: Paternal 'voice' recognition
How, in the animal world, a daughter avoids mating with her father: Paternal 'voice' recognition
Saturday, December 1, 2012Paternal recognition ? being able to identify males from your father's line ? is important for the avoidance of inbreeding, and one way that mammals can do this is through recognizing the calls of paternal kin. This was thought to occur only in large-brained animals with complex social groups, but a new study published today in the open access journal BMC Ecology provides evidence in a tiny, solitary primate that challenges this theory.
The study, led by Sharon E Kessler, finds that the grey mouse lemur (Microcebus murinus) ? a small-brained, solitary foraging mammal endemic to Madagascar ? is able to recognize paternal relatives via vocalizations, thus providing evidence that this is not dependent upon having a large brain and a high social complexity, as previously suggested.
Because grey mouse lemurs are nocturnal solitary-foragers living in dense forests, vocal communication is important for regulating social interactions across distances where visibility is poor and communication via smell is limited. Though the mouse lemur shares sleeping sites with other mouse lemurs, it forages alone for fruit and insects. It is a particularly interesting species with which to study vocal paternal recognition because, in the wild, females remain in the same area of birth and cooperatively raise young with other female kin. Males do not co-nest with their mates or young and provide no paternal care, which limits opportunities for familiarity-based social interactions. Thus, vocalizations are likely to be important ? particularly for avoiding inbreeding.
The research team from Arizona State University and the University of Veterinary Medicine Hannover in Germany found that two of the most frequent calls of the mouse lemur were the mate advertisement call and the alarm call. Using multi-parametric analyses of the call's acoustic parameters, they could see that both call types contained individual signatures. Through this, they discovered that only male grey mouse lemur advertisement calls, but not alarm calls, contained acoustic paternal signatures. Furthermore, females paid more attention to advertisement calls from unrelated males than from their fathers.
The findings from the study suggest that the discrimination between mate advertisement calls and alarm calls may be an important mechanism for inbreeding avoidance. This is likely to be highly important in the grey mouse lemur species because males are likely to remain in an area for several years and they can expand their ranges to more than twice that of the female's range, making it likely that adult males' ranges will overlap with those of their daughters from previous mating seasons.
The team also proposed that the mouse lemur's ultrasonic calls above the hearing range of owls could be an anti-predator strategy, especially since the species suffers from high predation.
Lead author Kessler commented, "Given that more complex forms of sociality with cohesive foraging groups are thought to have evolved from an ancestral solitary forager much like the mouse lemur, this suggests that the mechanisms for kin recognition like those seen here may be the foundation from which more complex forms of kin-based sociality evolved."
She continued, "Future analyses will determine which acoustic parameters make this kin recognition possible by artificially manipulating acoustic parameters in the calls and then using the modified calls in playback experiments."
###
Paternal kin recognition in the high frequency / ultrasonic range in a solitary foraging mammal
Sharon E Kessler, Marina Scheumann, Leanne T Nash and Elke Zimmermann
BMC Ecology (in press)
BioMed Central: http://www.biomedcentral.com
Thanks to BioMed Central 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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