Source: www.fivb.org --- Thursday, August 01, 2013
Nakhon Ratchasima, Thailand, July 28, 2013 ? Mexico complete to their own strategy and beat Algeria in straight sets at the Girls? U18 World Championships in Thailand. ...
Source: http://www.fivb.org/viewPressRelease.asp?No=41736&Language=en
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Changes to the acidity of the Earth's ancient oceans affected the coral reefs more than 50 million years ago. And researchers are using that information to try to predict how the planet might fare in our rapidly changing climate. Above, the Wheeler Reef section of the Great Barrier Reef.
Auscape/UIG via Getty ImagesOne of the most powerful ways to figure out how the Earth will respond to all the carbon dioxide we're putting into the atmosphere is to look back into the planet's history.
Paleontologists have spent a lot of time trying to understand a time, more than 50 million years ago, when the planet was much hotter than it is today. They're finding that the news isn't all bad when you take the long view.
About 10 million years after the dinosaurs died out, the Earth suffered another huge ecological shock: Carbon dioxide levels in the air soared and the oceans turned more acidic as carbon dioxide dissolved in the water and turned into carbonic acid. And that's happening again, thanks to our use of fossil fuels.
Dick Norris, a paleontologist at the Scripps Institution of Oceanography, has been trying to figure out what that means for the near future.
"Looking in the geologic past, and also, of course, using models to forecast the future, is a little bit like looking into a house through dirty windows," he says. "You don't get all the details of what's going on there, but you get sort of the gist."
He and some colleagues review that deep history in the latest issue of Science magazine. The bad news from the greenhouse event 56 million years ago is a lot of life in the deep ocean simply went extinct, either from getting too warm, having not enough oxygen, or both. Coral also took a hit, but not as bad.
"The reefs disappear, but we don't think it was an extinction of reef corals," Norris says. "Rather, it was the reef corals being outcompeted by other kinds of organisms during this much warmer period of Earth history."
Algae that didn't mind the heat and acidity may simply have taken over the reefs and left them flat and boring ecosystems. But the coral laid low for millions of years until conditions improved again for the majestic branching coral we see today.
Paul Falkowski, a professor at Rutgers University, is also fascinated with this period of Earth history. He notes that the prehistoric hot spell prevented ocean waters at the surface from circulating into the deep. And that's something he worries could happen again in a sharply warmer world.
"That would lead to a major change in the cycling of many elements on the planet, such as nitrogen, sulfur, carbon, and so on," he says.
Those nutrient cycles don't just affect what happens in the ocean ? they affect life on land in surprising and unpredictable ways as gases flow from the sea into the air. For example, it was during this ancient hot spell that grasses spread across the Earth, and along with that, the grazing animals that depend on them.
"It is hard to believe that a horse could be the size of a Chihuahua, but horses started out about that size and evolved to be, because of the rise of grasses, the animals that we commonly associate them to be today ? large animals," Falkowski says.
In short, it was a time of upheaval, with both winners and losers. The wild card now is that these changes are happening so fast, it's likely to be harder for species to adapt or evolve. And Norris at Scripps says that the pace and severity of the change depends on how long we continue to burn fossil fuels and allow all that carbon dioxide to flood into the air and the ocean.
"If we wait, even a fairly short period of time, like 80 years, to deal with greenhouse gases and the global [climate] change problem, then we end up with these really remarkably long ecological impacts on Earth, where it takes 20,000 years to sort of start to readjust to something we would be familiar with now," he says.
But he says if we switch quickly to cleaner sources of energy, the world could remain much more like the planet we depend upon today.
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If Playing God taught us anything, it's that surgeons with shaky hands and crippling prescription painkiller addictions are not long for their profession. That's why robots like the Da Vinci
Source: http://gizmodo.com/ibis-can-do-what-the-da-vinci-does-but-for-90-percent-951741305
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Yahoo has just acquired ecommerce app platform Lexity, a startup founded by former employee Amit Kumar. Lexity says all services will remain running, but it will eventually be renamed with Yahoo branding. This isn't just another talent deal. The startup, formerly called Vurve, had raised $5.7 million to help merchants build apps for customer acquisition, retention, and monetization.Source: http://feedproxy.google.com/~r/Techcrunch/~3/yrOVhDNISGs/
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Associated Press
Posted on July 31, 2013 at 6:43 PM
Updated today at 6:59 PM
HUNTSVILLE, Texas (AP) ? A former financial analyst with a history of disruptive behavior was executed Wednesday for the road-rage shooting deaths of two truckers in the Dallas area 15 years ago.
Douglas Feldman, 55, received lethal injection for gunning down Robert Everett, 36, of Marshfield, Mo., and Nicholas Valesquez, 62, of Irving.
Feldman mimicked the announcement a judge or jury makes when announcing a verdict, using the names of his victims and declaring he had found them guilty of crimes against him.
"I have sentenced them both to death. I personally carried out their executions," he said in a loud voice, adding that he carried out their executions in August 1998.
"As of that time, the state of Texas has been holding me illegally in confinement and by force for 15 years," Feldman said. "I hereby protest my pending execution and demand immediate relief."
He appeared very nervous, breathing quickly and his feet twitching under a sheet. As the drug began taking effect, he grimaced twice, took a few deep breaths and began snoring. Then all movement stopped.
Feldman was pronounced dead 13 minutes after the lethal drug was injected at 6:28 p.m. CDT.
Feldman's attorney, Robin Norris, filed a clemency petition with the Texas Board of Pardons and Paroles that was turned down Monday. Multiple courts, including the U.S. Supreme Court, earlier rejected his appeals on Feldman's behalf.
Multiple courts, including the U.S. Supreme Court, earlier rejected his appeals on Feldman's behalf.
Feldman, from Richardson, was riding his motorcycle the night of Aug. 24, 1998, and said Everett, driving an 18-wheeler, cut him off on a Dallas County freeway so he took out his 9 mm pistol, pulled up alongside the truck cab and shot him. Feldman testified at his capital murder trial that he was still angry about 45 minutes later when he spotted Valesquez, a gasoline tanker driver filling a Dallas service station, and shot him.
"A security camera catches him shooting the man in cold blood," Jason January, the former Dallas County assistant district attorney who prosecuted him, said. "Several counties were frightened as this unidentified motorcyclist was out acting like `The Terminator."'
Feldman was arrested more than a week later, after shooting and wounding a man at a fast-food restaurant and driving off. A bystander saw the shooting and reported his license plate number to police, who tracked him down and found Feldman with two pistols and nearly 300 rounds of ammunition. Ballistics tests confirmed one of the guns was used in all three shootings.
"It feels wonderful to cause their death and to watch their pain," he said in one of 81 letters he wrote to a former girlfriend while awaiting his trial. The writings from the magna cum laude Southern Methodist University graduate were introduced into evidence.
"God forbid I ever had my finger on the button to launch a nuclear explosive device because I guarantee that I would wipe as many of these bastards off the face of the planet as I am able!" he said in another letter.
Without remorse, he also acknowledged the killings while testifying at his capital murder trial.
Evidence showed he got into trouble as a juvenile, had drug possession and selling issues and wound up in state custody. He also had robbery and drug convictions.
While in prison, records show Feldman racked up 136 disciplinary cases, including one for ripping out the phone in a visiting cage where death row inmates are interviewed by reporters. Texas prison officials subsequently refused him media access.
The day before the fatal shootings, evidence showed he shot up a Volkswagen dealership where he once had some work done.
"Obviously, Mr. Feldman was a very angry man," John Everett, said before witnessing the execution of his brother's killer. "I can say we looked forward to it. But it doesn't change anything. Bob is still gone."
Feldman became the 11th prisoner executed this year in Texas and third this month. At least seven other inmates are scheduled to die in the coming months in the nation's busiest capital punishment state.
Source: http://www.wfaa.com/news/texas-news/Road-rage-killer-of-2-set-for-Texas-execution--217788301.html
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