Sunday, April 28, 2013

NYC officials seek human remains amid plane debris

NEW YORK (AP) ? The New York City medical examiner's office plans to resume searching for human remains two blocks from the World Trade Center after the sudden discovery of an airplane's landing gear.

Medical examiner's spokeswoman Ellen Borakove told The Associated Press on Saturday that the alley behind a mosque site will first be tested as part of a standard health and safety evaluation.

Borakove says sifting for human remains will begin at 8 a.m. Tuesday.

The New York Police Department has declared the alley a crime scene, documenting it with photos and restricting access.

Authorities say the rusted landing gear is believed to be from a Sept. 11 hijacked plane. Police were guarding the area as a crime scene Saturday.

Source: http://news.yahoo.com/nyc-officials-seek-human-remains-amid-plane-debris-171255347.html

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Saturday, April 27, 2013

The MTM ?Rad' Watch Can Be Helpful In Fallout-Like Situations

mtm-rad-black-1Whether you're fighting mutant cyborg dogs in a hellish, post-apocalyptic wasteland or, more likely, dealing with potentially radioactive substances on a daily basis, the MTM 'Rad' watch may be the wrist droid you're looking for.

Source: http://feedproxy.google.com/~r/Techcrunch/~3/8Rmz68GYczk/

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Rethinking early atmospheric oxygen

Thursday, April 25, 2013

A research team of biogeochemists at the University of California, Riverside has provided a new view on the relationship between the earliest accumulation of oxygen in the atmosphere, arguably the most important biological event in Earth history, and its relationship to the sulfur cycle.

A general consensus exists that appreciable oxygen first accumulated in Earth's atmosphere around 2.4 to 2.3 billion years ago. Though this paradigm is built upon a wide range of geological and geochemical observations, the famous "smoking gun" for what has come to be known as the "Great Oxidation Event" (GOE) comes from the disappearance of anomalous fractionations in rare sulfur isotopes.

"These isotope fractionations, often referred to as 'mass-independent fractionations,' or 'MIF' signals, require both the destruction of sulfur dioxide by ultraviolet energy from the sun in an atmosphere without ozone and very low atmospheric oxygen levels in order to be transported and deposited in marine sediments," said Christopher T. Reinhard, the lead author of the research paper and a former UC Riverside graduate student. "As a result, their presence in ancient rocks is interpreted to reflect vanishingly low atmospheric oxygen levels continuously for the first ~2 billion years of Earth's history."

However, diverse types of data are emerging that point to the presence of atmospheric oxygen, and, by inference, the early emergence of oxygenic photosynthesis hundreds of millions of years before these MIF signals disappear from the rock record. These observations motivated Reinhard and colleagues to explore the possible conditions under which inherited MIF signatures may have persisted in the rock record long after oxygen accumulated in the atmosphere.

Using a simple quantitative model describing how sulfur and its isotopes cycle through the Earth's crust, the researchers discovered that under certain conditions these MIF signatures can persist within the ocean and marine sediments long after O2 increases in the atmosphere. Simply put, the weathering of rocks on the continents can transfer the MIF signal to the oceans and their sediments long after production of this fingerprint has ceased in an oxygenated atmosphere.

"This lag would blur our ability to date the timing of the GOE and would allow for dynamic rising and falling oxygen levels during a protracted transition from an atmosphere without oxygen to one rich in this life-giving gas," Reinhard said.

Study results appear in Nature's advanced online publication on April 24.

Reinhard explained that once MIF signals formed in an oxygen-poor atmosphere are captured in pyrite and other minerals in sedimentary rocks, they are recycled when those rocks are later uplifted as mountain ranges and the pyrite is oxidized.

"Under certain conditions, this will create a sort of 'memory effect' of these MIF signatures, providing a decoupling in time between the burial of MIF in sediments and oxygen accumulation at Earth's surface," he said.

According to the researchers, the key here is burying a distinct MIF signal in deep sea sediments, which are then subducted and removed from Earth's surface.

"This would create a complementary signal in minerals that are weathered and delivered to the oceans, something that we actually see evidence of in the rock record," said Noah Planavsky, the second author of the research paper and a former UC Riverside graduate student now at Caltech. "This signal can then be perpetuated through time without the need to generate it within the atmosphere contemporaneously."

Reinhard, now a postdoctoral fellow at Caltech and soon to be an assistant professor at Georgia Institute of Technology, explained that although the researchers' new model provides a plausible mechanism for reconciling recent conflicting data, this can only occur when certain key conditions are met ? and these conditions are likely to have changed through time during Earth's long early history.

"There is obviously much further work to do, but we hope that our model is one step toward a more integrated view of how Earth's crust, mantle and atmosphere interact in the global sulfur cycle," he said.

Timothy W. Lyons, a professor of biogeochemistry at UCR and the principal investigator of the research project noted that this is a fundamentally new and potentially very important way of looking at the sulfur isotope record and its relationship to biospheric oxygenation.

"The message is that sulfur isotope records, when viewed through the filter of sedimentary recycling, may challenge efforts to precisely date the GOE and its relationship to early life, while opening the door to the wonderful unknowns we should expect and embrace," he said.

###

University of California - Riverside: http://www.ucr.edu

Thanks to University of California - Riverside 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/127923/Rethinking_early_atmospheric_oxygen

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Adam Savader, Ryan-Romney Intern, Arrested For Sextortion Against Women

Source: http://www.thehollywoodgossip.com/2013/04/paul-ryan-intern-accused-of-sextortion-against-women/

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First Hands-On With The Incident Tech gTar

gtar-blackI was lucky enough to get Incident Tech's new gTar, a MIDI/DSP-based guitar that is perfect for both teaching and composition. The guitar, with the current software and feature set, isn't quite the shredder's dream - yet - but as a teaching system it's excellent and I found it quite playable both "live" and while recording MIDI music.

Source: http://feedproxy.google.com/~r/Techcrunch/~3/NCVzFUoTd5E/

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Hoax tweet tests firms that filter social media for Wall Street

By Ryan Vlastelica

NEW YORK (Reuters) - Firms that scour social media sites such as Twitter for information to help investors and traders make money faced their biggest test yet this week.

A tweet reporting explosions at the White House appeared on the Associated Press's official feed Tuesday afternoon, sparking a temporary sell-off that briefly wiped out about $140 billion in market value on the S&P 500.

The tweet was a fake and the account had been hacked. But for analytics firms that comb through tweets for tradable ideas - a small but growing niche industry - it was the latest example of the challenges they face in delivering information to a client base that often prizes speed first.

Failure to highlight a tweet saying President Barack Obama had been injured in an explosion would have left people in the dust as the market zoomed lower - but a hair-trigger response to sell may have been worse.

Some of these firms did throw up red flags, based on other tweets or on the unusual nature of the news, but the selloff had already happened. For some of the firms, that's just fine - they're aware of their limitations.

"The guys who trade on tweets as they happen will always be susceptible to things like this, that's why we've shied away from delivering every tweet to people for them to trade off," said Oli Freeling-Wilkinson, chief executive officer of the London-based analytics firm Knowsis, one of several recent start-ups which sell subscriptions to investors and institutions such as retail brokers and fund managers.

"Algorithms used to trade off news headlines, now they trade off tweets. That's very dodgy, very shaky ground."

For Knowsis and other firms doing this analytical work, the ability to discern news from noise is the key to success, and it appears to be getting harder. The U.S. Securities and Exchange Commission said earlier this month that companies can use Twitter, Facebook and other social media to make key announcements.

Tuesday's fateful tweet appeared at 1:07 p.m. EDT. It was picked up almost immediately by investors and analytic companies scanning Twitter for key words to determine breaking news or measure sentiment. Stocks and commodities moved sharply lower and bond prices soared.

Within minutes, analytics firm Dataminr issued an alert saying the AP account was probably hacked, citing another tweet by a reporter in the White House basement.

That warning came at 1:11 pm EDT, "just four minutes after the fake message had been published on the AP's hacked Twitter account," said Ted Bailey, New York-based chief executive of Dataminr, which was founded in 2009.

The difficulty of reacting to such news can be seen in this case, however. By the time Dataminr's message went out, the market recovery was already underway.

The nature of the hoax created a challenge as the AP account is considered a trusted source. Past hoaxes originated from newly created accounts that were more readily identifiable as suspect. But the extraordinary nature of the news would have been another cautionary signal, some said, especially in the absence of similar reports by other news outlets.

"We would have published the AP tweet but because it could not have been verified at the time we would have clearly marked it as a rumor," said Emmett Kilduff, chief executive officer at Eagle Intel in Dublin. "When it was proven to be false we would have published a note to our clients saying so."

Kilduff, in an email, noted differences in the language of the fake tweet and official Associated Press style that could have outed it as a hoax, including the use of capital letters and that it referred to "Barack Obama" instead of "President Obama" or "Obama," the two ways the AP refers to the president.

European markets were closed at the time of the hoax tweet.

The mini-crash sparked by the bogus tweet was reminiscent of the "flash crash" of May 2010 when security prices suddenly plunged, as if the floor had been yanked from underneath them.

The free-fall nature can be explained by a couple of factors. For one, automatic stop-loss orders, which are designed to limit an investor's losses, kicked in, adding to the selling.

In addition, trading firms that provide liquidity pulled their bids, making the selloff more chaotic. Similar moves worsened the flash crash. In a market where participants step back when news is either onerous or uncertain, the combination of stop-loss orders and market makers withdrawing bids can make a selloff worse.

"We see this every time this type of news comes out: liquidity evaporates quickly. High-frequency traders cancel their orders on even one little tweet," said Dennis Dick, a trader at Bright Trading LLC in Las Vegas.

Freeling-Wilkinson said analytics firms like his are more interested in looking at trends than individual tweets.

"I would never recommend that anyone trades on a single tweet," he said.

(Additional reporting by Herb Lash; Editing by Claudia Parsons)

Source: http://news.yahoo.com/hoax-tweet-tests-firms-filter-social-media-wall-075118556--sector.html

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Sunday, April 14, 2013

Spring storm socks Midwest, Deep South

JACKSON, Miss. (AP) ? A powerful spring storm unleashed tornadoes and winds strong enough to peel the roofs from homes in the Deep South and heaped snow and ice on the Midwest, killing three people and leaving thousands without power.

The National Weather Service confirmed Friday that the storm system spawned 12 tornadoes in six states in recent days. Forecasters said they had confirmed three tornadoes each in Missouri, Arkansas and Alabama; and one each in Louisiana, Mississippi and Georgia.

Emergency officials said one person was killed by a tornado in Mississippi on Thursday. In Missouri, a utility worker repairing power lines was electrocuted, and a woman in Nebraska died when she tried to trudge through a blinding snowstorm from her broken-down car to her house a mile away.

Golf-ball and baseball-sized hail pelted parts of Georgia and the Carolinas late Thursday and early Friday. The second day of play at the Masters at Augusta National in eastern Georgia began as scheduled Friday morning, though, and skies had cleared by the afternoon. The course was a bit wet but otherwise undamaged.

High winds knocked down trees and power lines across the Southeast. Sleet and freezing rain made driving treacherous in northern New York, where several schools closed Friday and scores of others delayed the start of classes.

And more wintry weather was on the way for the nation's northern tier.

The weather service was predicting that another storm system would hit the north-central U.S. starting Saturday afternoon, potentially bringing 6 to 12 inches of snow to parts of eastern Montana, much of North Dakota, northern South Dakota and northern Minnesota.

In the Deep South, meanwhile, families and business persons were picking up the pieces Friday after powerful storms pounded the region a day earlier.

In Mississippi, Emergency Management Agency spokesman Jeff Rent said that one person died and 10 people were injured after a tornado struck Kemper County in the far-eastern part of the state on Thursday. Authorities said the man was killed when the tornado ripped apart a business. The National Weather Service said Friday that that tornado was a category EF-3 storm, with winds of 145 mph.

At Contract Fabricators Inc. in Kemper County, bent pieces of tin hung from a heavily damaged building. A tractor-trailer was twisted and overturned, and debris from the business was strewn through the woods across the street.

Derek Cody, an amateur storm chaser who works at East Mississippi Community College in Scooba, just south of Shuqualak (pronounced SHUG-a-lock), told The Associated Press he drove north on Thursday to the small town to try to catch a glimpse of a tornado.

Cody said the center of Shuqualak, an eastern Mississippi town of 500 people, was unaffected. But he said a gas station and about 10 or so houses west of the town center were damaged. He said one house was "completely flattened" with debris blown across the road.

Charlotte Conner, 47, and her mother were in a small, concrete block apartment on her family's property in Shuqualak in Noxubee County when the twister mowed it to the ground. The building, an old country store converted to an apartment, was reduced to a heap of broken concrete blocks and boards.

Conner said in a telephone interview Friday that she grabbed her mother's hand to keep the woman from being sucked out of the house. The two women had injured knees, scratches and bruises, and Conner had five stitches in her chin.

"I feel like I've been run over by an elephant and a train, but we're alive," Conner said. "It was just the hand of God that kept us safe."

Conner's aunt, Cindy Moore, 56, worried that the two women had been killed when she saw the roof of the concrete block building they were in hung in trees across the street in Shuqualak and their belongings scattered in the yard.

In Alabama, officials confirmed a tornado with winds up to 120 mph blew through a rural stretch east of Montgomery. Two weaker tornadoes touched down in Huntsville ? about 190 miles north of Notasulga, where an EF-2 tornado hit. No one was hurt in the state, though damage was scattered across several counties.

Friday-morning light showed there wasn't much left of the two-story home near Notasulga that 41-year-old James Brooks shared with his wife, Billieanne, and their three children.

With the lights out and the storm bearing down on the home, Brooks said he went to the kitchen to get a candle. Loud thunder rumbled continuously, and he dove to the floor.

Then, he said, "The house exploded."

Much of Brooks' roof was missing afterward, his wooden workshop was gone and linens hung across bare rafters. His two boats were damaged along with two cars and two trucks; the trampoline was in the neighbor's yard.

"What can we do?" asked Brooks, who built the home.

The system first swept across the nation's midsection Wednesday night and pummeled portions of Missouri. An EF-2 tornado damaged dozens of homes in the St. Louis suburb of Hazelwood, in this case bringing winds of 111 to 125 mph, the National Weather Service said Friday. More than 23,000 homes and businesses lost power. A utility worker for Ameren Missouri was electrocuted while helping to repair damage, the company said.

In the upper Midwest over the past couple of days, heavy, wet snow, ice and wind left thousands of homes and businesses without power. Some rivers topped their banks in Michigan, forcing officials to close roads and some residents to evacuate their homes.

In Wisconsin, authorities in Kenosha County on Friday closed a section of State Highway 75 as they kept an eye on a levee that was in danger of failing because of heavy rains.

As South Dakota residents started to clean up after a major spring storm brought freezing rain and heavy snow that snapped tree branches, residents of North Dakota were bracing for another wallop.

North Dakota could see freezing rain and as much as a foot of snow this weekend, the weather service said. Strong winds could accompany the storm, creating near-blizzard conditions and making travel hazardous.

___

Associated Press writers Kristi Eaton in Sioux Falls, N.D.; Jim Suhr and Jim Salter in St. Louis; Jeff Amy in Jackson, Miss.; David Runk in Detroit; Kathy Wingard in Notasulga, Ala.; Jay Reeves in Birmingham, Ala., and Phillip Lucas and Norman Gomlak in Atlanta contributed to this report.

Source: http://news.yahoo.com/spring-storm-socks-midwest-deep-south-3-dead-143748114.html

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