XIAM007

Making Unique Observations in a Very Cluttered World

Thursday, 30 May 2013

Asteroid fly-by on Friday sparks debate over readiness for ‘Armageddon’-style event -


Asteroid fly-by on Friday sparks debate over readiness for ‘Armageddon’-style event - 



The passage close to Earth of a mountain-sized asteroid expected Friday has reignited discussions among scientists about how to deal with the improbable — but definitely possible — circumstance of an asteroid predicted to hit the planet.
1998 QE2, as the asteroid is designated, will pass Earth at what NASA calls a “safe distance” of about 3.6 million miles — 15 times the distance to the moon, but nonetheless a near miss in astronomical terms — at just before 5 p.m. Eastern on Friday.
The asteroid is not named for the Cunard cruise line’s famous transatlantic ship the Queen Elizabeth II, but rather according to a naming convention based on the year it was discovered.
The asteroid, which is estimated to be 1.7 miles long, but whose shape is still undetectable, will be closely examined by radar telescopes as it passes, NASA said in a statement.
The agency is planning a variety of social media events to mark the passage, and allow the public to listen in to scientists as they debate and discuss what they are learning from the fly-by.
NASA says it “places a high priority on tracking asteroids and protecting our home planet from them” through its Near-Earth Object program.
For more than a decade the program has run Sentry — a computer system that automatically analyses constantly updated astronomical data, looking for asteroids or other objects that might be on a collision course with Earth.
In 2016, NASA will launch a robotic space-probe to one of the most potentially dangerous of the objects in the Sentry database — asteroid (101955) Bennu. The OSIRIS REx probe will enable scientists to study the asteroid and even bring a small sample of it back to Earth for study.
Without years of observation and exact knowledge of an asteroid’s size and shape, it is hard to predict the exact future course they will take as their orbits are erratic, but (101955) Bennu is one of a group of such bodies known as Apollo asteroids which have an orbit that intersects with the Earth’s — creating a small but hard to calculate risk of a collision.
Recent calculations by NASA scientists show a 1 in 1,800 chance that Bennu will collide with Earth in the year 2182.


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Oldest dinosaur embryos ever discovered? -


Oldest dinosaur embryos ever discovered? - 



A dinosaur nest discovery has revealed the most primitive known dinosaur embryos, which are among the oldest ever found.
The eggs belong to Torvosaurus, a T. rex-like predator that stalked the late Jurassic some 150 million years ago. Torvosaurus grew to be around 30 feet long, but the fragmented embryos discovered in Portugal were probably only about 6 inches in length.
'He just stumbled across some eggshells [and found] there was also an entire nest up there.'
- Ricardo Arajo, a doctoral candidate in paleontology at Southern Methodist University
"This is shedding some light on the early stages of the development of these types of dinosaurs," said Ricardo Arajo, a doctoral candidate in paleontology at Southern Methodist University in Texas. [See Photos of Dinosaur Embryos and Hatchlings]
A surprising find
The crushed clutch of eggs was found in 2005 by amateur fossil-hunter and fossil cast-maker Art Walen, who was on an annual vacation to the fossil-rich Lourinh Formation in western Portugal.
"He just stumbled across some eggshells, and he traced the eggshells up the cliffs and he found there were not only isolated eggshells, there was also an entire nest up there," Arajo told LiveScience.
Paleontologists from the Museu da Lourinh excavated the nest, which researchers first assumed belonged to a long-necked sauropod dinosaur. Even in the field, however, the paleontologists began to think they might have something very different on their hands. The eggs' surfaces were ornamented with a strange, almost honeycomb-like pattern that was quite distinct from anything the researchers had ever seen, Arajo said.
Once the specimen was excavated and brought to the museum for preparation, the researchers got another surprise: There were embryo bones mixed in with the crushed eggs.
Such a find is "extremely rare," Arajo said. "There's probably a handful of situations like this in the world."


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STUDY: Companies Reject 1 in 10 Job Seekers Based on Social Media Posts... -


STUDY: Companies Reject 1 in 10 Job Seekers Based on Social Media Posts... - 



Little did Ashley Payne know that the festive photo of her holding both a pint of beer and a glass of red wine would lead to her losing her high school teaching job.
The 24-year-old educator posted the image to her Facebook profile, and after a parent complained, school officials told Payne she'd have to choose between resigning and suspension, according to IOL News. She resigned.
If those same school officials were hiring and found a candidate with a similar photo shared on the social Web, it's most likely that person wouldn't even get an interview.
According to a new report, turning down young job candidates because of what they post on social media has become commonplace. The report, by On Device Research, states that 1 in 10 people between ages 16 and 34 have been turned down for a new job because of photos or comments on Facebook, Twitter, Pinterest, and other social networking sites.
"If getting a job wasn't hard enough in this tough economic climate, young people are getting rejected from employment because of their social media profiles and they are not concerned about it," On Device Research's marketing manager Sarah Quinn said in a statement.
Ten percent of young people said they knew they were rejected from a job because of their social media profiles, yet 66 percent of young people still don't seem to care that these profiles may affect their career prospects. The majority of young people cater their social media presence to friends rather than potential employers, according to On Device Research.
Quinn says that better education on how social media can affect employment is needed to ensure young people aren't making it even harder to excel in their careers.

Several U.S. states have created laws to protect employees from being fired because of what they post on social media. In January, six states officially made it illegal for employers to ask their workers for passwords to their social media accounts.
It's unclear how many employers have demanded access to workers' online accounts, but some cases have surfaced publicly and inspired lively debate over the past year. In one instance last year, a teacher's aide in Michigan was suspended after refusing to provide access to her Facebook account following complaints over a picture she posted.
As for Payne, even though she ultimately resigned, she since has sued the school to get her job back or receive monetary damages, according to IOL News.
On Device Research surveyed 17,657 people, ages 16 to 34, in China, India, Nigeria, Brazil, the U.S., and U.K.

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STUDY: Best Way to Win Argument -- Shout Louder... -


STUDY: Best Way to Win Argument -- Shout Louder... - 



Being confident and loud is the best way to win an argument - even if you are wrong, a new study suggests.
Researchers from Washington State University drew this conclusion after studying the activity of Twitter users. The more opinionated they were, the more influential and trustworthy they were perceived to be. 
They analysed more than a billion tweets posted during various American sporting events, including the 2013 Super Bowl, to the test whether being accurate or being confident made Twitter users more popular. 
Despite professional pundits and amateur fans making a similar amount of correct and incorrect predictions, the tweeters who 'yelled' louder were seen as more trustworthy and had more followers.

To test the theory, two economic students from the university studied the language used by sports pundits who often 'yell' for attention.
Jadrien Wooten and Ben Smith compared the tweets of professional pundits - celebrities with verified Twitter accounts - with amateur tweeters that claimed to have some sports expertise in their bio.
The pair then developed a software program to sort through more than a billion tweets looking for predictions for major sporting events in the US, such as the 2013 Super Bowl in February.
The program pulled out tweets with team names, nicknames and expressions commonly associated with predictions, such as 'beat' and 'win'.
Words like 'vanquish,' 'destroy' and 'annihilate' posted in Tweets were considered to be confident words.
The researchers used these confident words in place of being able to measure loudness online.

The researchers developed a software program and formula for analysing how confident tweets were. They compared this to how accurate the tweets were, how many tweets a user posted each year, how many people favorited their tweets and the number of followers each one had. From this they were able to find a mean average and compare professional and amateur tweeters to each other
The research found that the professionals were correct with their predictions 47 per cent of the time. 
Whereas the amateurs made accurate predictions in 45 per cent of cases. 
However, the professionals were more confident, scoring a .480 confidence rating compared to the amateurs' .313. 
If a professional pundit accurately predicted every game of the baseball playoffs and series, the authors estimated his or her Twitter following would increase 3.4 per centr
While an amateur would get 7.3 per cent more followers.
A confident professional would increase his or her following by nearly 17 per cent, whereas a 'loud' amateur would get 20 per cent more followers.


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Wednesday, 29 May 2013

Toxic waste from Greek yogurt poses danger to waterways -


Toxic waste from Greek yogurt poses danger to waterways  - 



Greek yogurt has become an increasingly popular low-calorie treat in the United States, as it is thicker and contains more protein than regular yogurt.  In fact, the yogurt is in such high demand that total yogurt production has nearly tripled in New York state over the last five years.
But the new diet fad harbors a dark secret. When Greek yogurt is strained, a thin, runny waste product known as acid (sour) whey is left over.  According to a new report from Modern Farmer, whey acid – a liquid containing mostly water, lactose (sugar), protein and yogurt cultures – is extremely toxic to the environment, making it illegal to dump.  The substance is so detrimental to the environment that if it enters nearby streams and rivers, it robs the water of so much oxygen that fish and other aquatic life start to die off over potentially large areas.
The Modern Farmer report stated that for every 3 to 4 ounces of milk used, Chobani and other manufacturers can only make 1 ounce of Greek yogurt – the rest becoming acid whey.  Chobani is so desperate to get rid of the whey, the report maintained, they pay nearby farmers to haul the whey somewhere else.  They claim that 70 percent of their excess whey winds up in livestock feed.
But the yogurt industry has remained relatively secretive on the issue, as there are currently no industry-wide statistics regarding where all of this excess whey is going..
Fortunately, the Modern Farmer report noted a possible consumer of excess whey: babies.  Dave Barbano, a dairy scientist at Cornell University, believes that the tiny amount of protein left over in acid whey could be used in infant formula.  Cheese manufacturers have managed to sell similar products from sweet whey, a byproduct of cheese. Whey protein is sold as an ingredient in body building supplements and in other foodstuffs – and Greek yogurt manufacturers are eager to try the same tactics.
“There are a lot of people coming in and out of New York state looking at whether this is a good opportunity for investment,” Barbano told Modern Farmer.
Other researchers at the Center for Dairy Research at the University of Wisconsin, Madison, are trying to figure out a way to extract the sugar from acid whey, which could be used as an ingredient in things like icing and bread.  And a farm in Scipio Center, N.Y., is hoping to convert the whey’s lactose into methane – which could ultimately be used to generate electricity.
No matter what, the Modern Farmer report maintained that a solution needs to be found as soon as possible, because the development of excess whey isn’t slowing down.


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'Mars rat' spied by NASA's Curiosity rover - 

Mars Rat Big.jpg

Is that a rat on Mars?
A photo from the mast camera on NASA’s Curiosity rover reveals the dusty orange, rock-strewn surface of the Red Planet -- and what starry-eyed enthusiasts claim is a dusty orange rodent hiding among the stones.
The photo, taken Sept. 28, 2012, depicts the “Rocknest” site, where NASA’s rover took a scoopful of sand, tasted it, and determined it was full of weathered basaltic materials -- not unlike Hawaii, the space agency’s scientists said last year.

No word on how the rodent tasted, however.
The “creature” was identified on the UFO Sightings Daily website, where its finder, ScottCWaring, held tight to his opinion: That’s one darn cute rodent on Mars.
“Note its lighter color upper and lower eyelids, its nose and cheek areas, its ear, its front leg and stomach. Looks similar to a squirrel camouflaged in the stones and sand by its colors," he wrote. "Hey, who doesn't love squirrels, right?”
Others pointed out that the similarity in coloring and position mean it was most likely just a rock, fingering the psychology phenomenon known as pareidolia, a propensity to pick out faces from everyday objects and structures.


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Moon telescope would offer online views of Earth from lunar surface -


Moon telescope would offer online views of Earth from lunar surface - 



Ever wonder what it would be like to stand on the moon and look back at Earth?
You'll soon have to experience that view, via the Internet.
There's a plan to send a telescope the moon next year to allow Earthlings to view the Earth from the lunar surface.

The privately funded telescope, known as the International Lunar Observatory precursor, was designed and built by Silicon Valley-based Moon Express.
Company CEO Bob Richards says the shoebox-sized telescope will provide a unique view.
The Canadian-born Richards says people on Earth will even be able to manoeuvre the telescope by remote control to give them out-of-this-world access to galaxies, stars and planets.
The telescope was tested in December 2011 from the summit of the Mauna Kea volcano in Hawaii and the flight-test hardware was unveiled Tuesday in Vancouver.


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http://www.ctvnews.ca/sci-tech/moon-telescope-would-offer-online-views-of-earth-from-lunar-surface-1.1301510

Eyelid lifts for Medicare patients cost taxpayers millions  - 


Aging Americans worried about their droopy upper eyelids often rely on the plastic surgeon’s scalpel to turn back the hands of time. Increasingly, Medicare is footing the bill.

Yes, Medicare. The public health insurance program for people over 65 typically does not cover cosmetic surgery, but for cases in which a patient’s sagging eyelids significantly hinder their vision, it does pay to have them lifted. In recent years, though, a rapid rise in the number of so-called functional eyelid lifts, or blepharoplasty, has led some to question whether Medicare is letting procedures that are really cosmetic slip through the cracks — at a cost of millions of dollars.

As the Obama administration and Congress wrestle over how to restrain Medicare’s growing price tag, critics say program administrators should be more closely inspecting rapidly proliferating procedures like blepharoplasty to make sure taxpayers are not getting ripped off.

From 2001 to 2011, eyelid lifts charged to Medicare more than tripled to 136,000 annually, according to a review of physician billing data by the Center for Public Integrity. In 2001, physicians billed taxpayers a total of $20 million for the procedure. By 2011, the price tag had quadrupled to $80 million. The number of physicians billing the surgery more than doubled.

“With this kind of management malpractice, it’s little wonder that the [Medicare] program is in such dire shape,” said Sen. Tom Coburn, R-Okla., who is also a physician. “The federal government is essentially asking people to game the system.”

Plastic surgeons say there are a number of legitimate reasons for the spike, including a tendency among the elderly to seek fixes for real medical issues they might have quietly suffered through even a decade ago. But surgeons also acknowledge an increased awareness of the surgery fueled by reality television, word-of-mouth referrals, and advertising that promises a more youthful appearance. And doctors concede they face increased pressure from patients to perform eyelid lifts, even when they do not meet Medicare’s requirement that peripheral vision actually be impaired.

Thomas Scully, former Medicare administrator under George W. Bush, has a blunter assessment; he doubts the jump is caused by anything other than seniors seeking younger-looking eyes. “How many seniors among your friends or family have needed eyelid surgery?” he said. “I bet a hell of a lot of them at 65 say, ‘You know what, I bet I can get Medicare to pay for this.’ And I can imagine the plastic surgeons love it. If you can go to patients and say that Medicare will pay, they will do it in much larger numbers.”

Florida surgeon bills Medicare for more than 2,200 eye surgeries a year

Surgeons who bill Medicare for large numbers of eyelid surgeries dot a map of the United States. Yet 11 of the 20 highest billers in 2008 were in Florida, which is both an elderly mecca and the country’s foremost magnet for questionable Medicare billing.

Among the top surgeons, the data show a South Florida doctor billed Medicare more than $800,000 in 2008 for about 2,200 eyelid lifts. That’s an average of six a day, including weekends. This same doctor was also a top biller in 2006 and 2007.

The Center is barred from naming the Florida surgeon. A 1979 federal court injunction blocks the Department of Health and Human Services from publicly releasing doctor’s names in conjunction with specific Medicare billing information. The Center sued HHS to obtain the Medicare data but, as a condition for obtaining it, signed an agreement not to publish the names of individual doctors, unless they agreed to discuss their billing histories. After repeated calls for comment, and a fax including the billing referenced by the Center, the Florida physician’s office assistant said he would not talk “due to prior engagements.”

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Google plans 'wireless balloons' to spread the Internet -


Google plans 'wireless balloons' to spread the Internet  - 



Is it just a lot of hot air?

Google aims to help wire the world by bringing the Internet to a billion or more new people, including small villages and cities outside of major urban areas in Southeast Asia and sub-Saharan Africa -- using special balloons to broadcast the wireless connection.

According to The Wall Street Journal, Google plans to team up with local telecommunications firms and equipment providers in the emerging markets to develop the networks, as well as create business models to support them, people familiar with the project said. The networks also could be used to improve Internet speeds in urban centers, the paper reported.

To speed the spread of the Internet in these areas, the company has worked on special blimps, called high-altitude platforms, to broadcast a signal over hundreds of square miles.

Google has also considered helping to create a satellite-based network.

"There's not going to be one technology that will be the silver bullet," meaning that each market will require a unique solution, said one person familiar with Google's plans.



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Tuesday, 28 May 2013

Diet Soda's Effect On Teeth Terrifyingly Similar To Effects Of Meth, Crack Cocaine -


Diet Soda's Effect On Teeth Terrifyingly Similar To Effects Of Meth, Crack Cocaine - 

Diet Soda Teeth

Diet soda can have the same effect on your tooth enamel as methamphetamine or crack cocaine use -- and it's not pretty.

In a three-person case study published in the March/April 2013 issue of the journal General Dentistry, Dr. Mohamed Bassiouny studied the teeth of a diet soda drinker and two drug addicts and found similar dental erosion among all three.

"You look at it side-to-side with 'meth mouth' or 'coke mouth,' it is startling to see the intensity and extent of damage more or less the same," Bassiouny, a professor of restorative dentistry at Temple University's Kornberg School of Dentistry, told HealthDay.

The three participants included a woman in her thirties who drank two liters of diet soda daily for three to five years, a 29-year-old methamphetamine addict and a 51-year-old habitual crack cocaine addict, according to the case study. All three came from similar socioeconomic backgrounds and lived in urban areas with fluoridated public water.

According to an Academy of General Dentistry press release, the three people experienced severe erosion of their tooth enamel, a condition caused by acid. When the enamel is worn away, teeth become more susceptible to cavities and other problems. Diet soda, methamphetamine and crack cocaine are all highly acidic substances, the release notes.

The American Beverage Association disputed the study's claims, telling HealthDay in a statement that "the body of available science does not support that beverages are a unique factor in causing tooth decay or erosion," and to imply that diet soda consumption caused the woman's tooth erosion "is irresponsible."

However, in an interview with Business Insider, Bassiouny defended his comparison, adding that over a long dental career he had observed hundreds of similar soda-caused erosion cases.

"I was trying to make a parallel between drug abusers — and the usual neglect for themselves — and put this with the same traits of someone who drinks diet soda," Bassiouny said.

The idea that drinking diet soda might be bad for your teeth is not new, however, as evidenced by a 2011 Huffington Post blog written by New York City cosmetic dentist Dr. Thomas P. Connelly:

The problems with soda are twofold: first, the sugar content is bad for your teeth (but that fact is pretty obvious). The second bad part is the acidity, which is quite high in soda pop. Acidic content (aka pH) is measured on a scale of 0 (most acidic) to 14 (least). Battery acid is a 1 on the scale -- tap water is a 7 (this may seem backwards, but yes, the higher numbers are less acidic. Blame science.)

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