Wednesday, July 3, 2013

This Thorium Reactor Has the Power of a Norse God

This Thorium Reactor Has the Power of a Norse God

The Uranium-235 and -238 we use in modern nuclear fission reactors are humanity's single most energy-dense fuel source (1,546,000,000 MJ/L), but that potent power potential comes at a steep price?and not just during natural disasters. Its radioactive plutonium byproducts remain lethally irradiated for millennia. That's why one pioneering Nordic company is developing an alternative fuel that doesn't produce it.

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Source: http://feeds.gawker.com/~r/gizmodo/full/~3/6G-uyycXVNg/this-thorium-reactor-has-the-power-of-a-norse-god-649185119

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Meet Styx and Kerberos, Pluto's newly named moons

Meet Styx and Kerberos, Pluto's newly named moons

SETI's best known for its search for sentient life in the cosmos, but when the Hubble space telescope found a pair of new moons orbiting Pluto (at SETI's behest), it decided to do some planetoid naming, too. Today, SETI announced those names: Styx and Kerberos. The institute didn't grant titles to the moons itself, however. Instead, it put the onus on the public to come up with the proper names -- with instructions from the International Astronomical Union (IAU) that the nomenclature have something to do with the mythological underworld known as Hades. Voting lasted for two weeks, and SETI received over 450,000 regular votes and around 30,000 write-ins. Though many wished for the moons to be named for Stephen Colbert or the Romulan home world, the IAU found those choices to be unfit for the new moons. Instead, we have Styx (the river that separates earth from the underworld) and Kerberos (the three-headed dog that serves as the guardian to Hades) -- who said studying Classics was a waste of time?

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Source: SETI Institute

Source: http://www.engadget.com/2013/07/02/styx-and-kerberos-pluto-moons-seti/?utm_medium=feed&utm_source=Feed_Classic&utm_campaign=Engadget

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Tuesday, July 2, 2013

Obama says EU, all intelligence agencies seek info on each other

DAR ES SALAAM (Reuters) - U.S. President Barack Obama played down a controversy over whether Washington had spied on its European allies, saying on Monday intelligence services around the world -- including in the EU -- seek additional insight beyond regular media reports.

Obama, speaking at a news conference in Tanzania, said the United States would contact its European counterparts to address their concerns after studying allegations in a recent magazine article about the spying.

The U.S. president also repeated that Washington was working through law enforcement channels to prod Russia to extradite former U.S. spy agency contractor Edward Snowden.

(Reporting by Jeff Mason and Mark Felsenthal)

Source: http://news.yahoo.com/obama-says-eu-intelligence-agencies-seek-other-151534914.html

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Monday, July 1, 2013

Liver protein crucial for pregnancy

June 30, 2013 ? A protein first shown to function in the liver plays a crucial role in pregnancy in mice and has a key role in the human menstrual cycle, according to researchers at the University of Montreal. Mice that were genetically engineered not to produce the liver receptor homolog-1 (Lrh-1) molecule were unable to create the uterine conditions necessary for establishing and sustaining pregnancy, resulting in the formation of defective placentas. The researchers then showed that Lhr-1 was present in the human uterus and the essential processes related to the success of early gestation.

"We previously showed that Lrh-1 is essential for ovulation. Our newest studies have revealed that it is plays an important role in the uterus, raising the possibility that Lrh-1 deficiency contributes to human gestational failure," explained lead author Bruce Murphy, of the university's Animal Reproduction Research Centre. "We worked with mice before looking at human tissues. I believe it premature to propose determination of Lrh-1 in uterine biopsies as a diagnostic tool, but we are working on determining the receptor's pattern of expression across the menstrual cycle."

The researchers also looked at whether hormone replacement therapy might restore normal uterine functions in the mice. "Progesterone did not make a difference. Although hormone therapy allowed for the embryos to implant, we saw problems with the lining in the uterus, compromised formation of the placenta, fetal growth retardation and fetal death," Murphy said. "However, there are new Lrh-1 agonists and antagonists, currently in clinical trials to treat hepatic consequences of type II diabetes, and thus therapeutic intervention might be possible."

The study was published in Nature Medicine on June 30, 2013, and was funded by the Canadian Institutes of Health Research. The US National Institutes of Health funded collaborators at Baylor University that contributed to the study.?

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The above story is reprinted from materials provided by Universite de Montreal, via Newswise.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.


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Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/~3/XMMTwWhUK3A/130630144447.htm

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Fast-moving Arizona wildfire kills 19 firefighters

YARNELL, Ariz. (AP) ? Gusty, hot winds blew an Arizona blaze out of control Sunday in a forest northwest of Phoenix, overtaking and killing 19 members of an elite fire crew in the deadliest wildfire involving firefighters in the U.S. for at least 30 years.

The "hotshot" firefighters were forced to deploy their emergency fire shelters ? tent-like structures meant to shield firefighters from flames and heat ? when they were caught near the central Arizona town of Yarnell, state forestry spokesman Art Morrison told The Associated Press.

The fire also destroyed an estimated 200 homes, Morrison said. Dry grass near the communities of Yarnell and Glen Isla fed the fast-moving blaze, which was whipped up by wind and raced through the homes, he said.

The fire still burned late Sunday, with flames lighting up the night sky in the forest above Yarnell, a town of about 700 residents about 85 miles northwest of Phoenix. Most people had evacuated from the town, and no injuries or other deaths were reported.

The fire started after a lightning strike on Friday and spread to 2,000 acres on Sunday amid triple-digit temperatures, low humidity and windy conditions. Officials ordered the evacuations of 50 homes in several communities, and later Sunday afternoon, the Yavapai County Sheriff's Office expanded the order to include more residents in Yarnell.

Prescott Fire Chief Dan Fraijo said that the 19 dead firefighters were a part of the city's fire department.

"We grieve for the family. We grieve for the department. We grieve for the city," he said at a news conference Sunday evening. "We're devastated. We just lost 19 of the finest people you'll ever meet."

Hot shot crews are elite firefighters who often hike for miles into the wilderness with chain saws and backpacks filled with heavy gear to build lines of protection between people and fires. They remove brush, trees and anything that might burn in the direction of homes and cities.

The crew killed in the blaze had worked other wildfires in recent weeks in New Mexico and Arizona, Fraijo said.

"By the time they got there, it was moving very quickly," he told the AP of Sunday's fire.

He added that the firefighters had to deploy the emergency shelters when "something drastic" occurred.

"One of the last fail safe methods that a firefighter can do under those conditions is literally to dig as much as they can down and cover themselves with a protective ? kinda looks like a foil type ? fire-resistant material ? with the desire, the hope at least, is that the fire will burn over the top of them and they can survive it," Fraijo said.

"Under certain conditions there's usually only sometimes a 50 percent chance that they survive," he said. "It's an extreme measure that's taken under the absolute worst conditions."

The National Fire Protection Association had previously listed the deadliest wildland fire involving firefighters as the 1994 Storm King Fire near Glenwood Springs, Colo., which killed 14 firefighters who were overtaken by a sudden explosion of flames.

U.S. wildfire disasters date back more than two centuries and include tragedies like the 1949 Mann Gulch fire near Helena, Mont., that killed 13, or the Rattlesnake blaze four years later that claimed 15 firefighters in Southern California.

"This is as dark a day as I can remember," Gov. Jan Brewer said in a statement. "It may be days or longer before an investigation reveals how this tragedy occurred, but the essence we already know in our hearts: fighting fires is dangerous work."

Chuck Overmyer and his wife, Ninabill, said they lost their, 1,800-square-foot home in the blaze.

They were helping friends flee from the fire when the blaze switched directions and moved toward his property. They loaded up what belongings they could, including three dogs and a 1930 model hot rod on a trailer. As he looked out his rear view mirror he could see embers on the roof of his garage.

"We knew it was gone," he said.

He later gathered at the Arrowhead Bar and Grill in nearby Congress along with locals and watched on TV as he saw the fire destroy his house.

"That was when we knew it was really gone," he said.

He later fielded a phone call from a friend in which he said, "Lost it all, man. Yep, it's all gone."

About 200 firefighters are fighting the wildfire, which has also forced the closure of parts of state Route 89. An additional 130 firefighters and more water- and retardant-dropping helicopters and aircraft are on their way.

Federal help was also being called into to help, Arizona State Forestry Division spokesman Mike Reichling said. The Red Cross has opened two shelters in the area ? at Yavapai College in Prescott and at the Wickenburg High School gym.

Prescott, which is more than 30 miles northeast of Yarnell, is one of the only cities in the United States that has a hot shot fire crew, Fraijo said. The unit was established in 2002, and the city also has 75 suppression team members.

___

Billeaud reported from Phoenix. Associated Press reporter Martin Di Caro in Washington, D.C., also contributed to this story.

Source: http://news.yahoo.com/fast-moving-arizona-wildfire-kills-19-firefighters-061938546.html

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Where the Hell Is the True North Pole?

The North Pole is just at the top of the Earth, right? Well, not really: there isn't really a 'top' of a sphere spheroid and, anyway, depending on how you measure things the pole can be in one of many different spots. So which one's right?

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Source: http://feeds.gawker.com/~r/gizmodo/full/~3/G4X6iDgrQjc/where-the-hell-is-the-true-north-pole-632206503

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Justin Wesley's Page - Musical Family Tree

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Source: http://www.musicalfamilytree.net/profile/JustinWesley?xg_source=activity

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