Monday, November 16, 2009

Improving Security With Face Recognition Technology

This photo shows how to determine discriminative anatomical point pairings using Adaboost for 3-D face recognition. (Credit: University of Miami)

From Science Daily:

Science Daily (Nov. 15, 2009) — A number of U.S. states now use facial recognition technology when issuing drivers licenses. Similar methods are also used to grant access to buildings and to verify the identities of international travelers. Historically, obtaining accurate results with this type of technology has been a time intensive activity. Now, a researcher from the University of Miami College of Engineering and his collaborators have developed ways to make the technology more efficient while improving accuracy.

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Just Thinking of a Loved One Can Reduce Physical Pain

From Live Science:

They say love hurts. But it can also make people feel better.

In an offbeat study, researchers applied "moderately painful heat stimuli" to the forearms of 25 women while each held the hand of her boyfriend, the hand of a male stranger, or squeezed a ball. The women reported less pain when holding their boyfriends' hands.

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Surprising Discovery Explains Formation Of New Memories


From U.S. News And World Report:

Short-term memory may depend in a surprising way on the ability of newly formed neurons to erase older connections. That's the conclusion of a report in the November 13th issue of the journal Cell, a Cell Press publication, that provides some of the first evidence in mice and rats that new neurons sprouted in the hippocampus cause the decay of short-term fear memories in that brain region, without an overall memory loss.

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Time-Travelling Browsers Navigate The Web's Past

19 October 1996: Plane maker Boeing had what was,
for the time, a very image-intensive home page


From New Scientist:

Finding old versions of web pages could become far simpler thanks to a "time-travelling" web browsing technology being pioneered at the Los Alamos National Laboratory in New Mexico.

Bookmarking a page takes you to its current version – but earlier ones are harder to find (to see an award-winning 1990s incarnation of newscientist.com, see our gallery of web pages past, right). One option is to visit a resource like the Internet Archive's Wayback Machine. There, you key in the URL of the site you want and are confronted with a matrix of years and dates for old pages that have been cached. Or, if you want to check how a Wikipedia page has evolved, you can hit the "history" tab on a page of interest and scroll through in an attempt to find the version of the page on the day you're interested in.

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Scientists Identify Gene That Can Help You Live To 100


From The Telegraph:

A gene that can help you live to 100 has been identified by scientists.

Researchers studying a group of people with an average age of 97 found they had all inherited a gene that appears to prevent cells ageing.

They found that the 86 people studied and their children had higher levels of an enzyme called telomerase which is known to protect the body's DNA from degrading.

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Last Ice Age Took Just SIX Months To Arrive

Photo: Climate catastrophe: Rapid climate change was the subject of the Hollywood blockbuster The Day After Tomorrow

From The Daily Mail:

It took just six months for a warm and sunny Europe to be engulfed in ice, according to new research.

Previous studies have suggested the arrival of the last Ice Age nearly 13,000 years ago took about a decade - but now scientists believe the process was up to 20 times as fast.

In scenes reminiscent of the Hollywood blockbuster The day After Tomorrow, the Northern Hemisphere was frozen by a sudden slowdown of the Gulf Stream, which allowed ice to spread hundreds of miles southwards from the Arctic.

Geological sciences professor William Patterson, who led the research, said: 'It would have been very sudden for those alive at the time. It would be the equivalent of taking Britain and moving it to the Arctic over the space of a few months.'

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Starvation 'Wiped Out' Giant Deer

From The BBC:

The giant deer, also known as the giant Irish deer or Irish elk, is one of the largest deer species that ever lived.

Yet why this giant animal, which had massive antlers spanning 3.6m, suddenly went extinct some 10,600 years ago has remained a mystery.

Now a study of its teeth is producing tantalising answers, suggesting the deer couldn't cope with climate change.

As conditions became colder and drier in Ireland at the time, fewer plants grew, gradually starving the deer.

The discovery is published in the journal Palaeogeography, Palaeoclimatology, Palaeoecology.

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Leonid Meteor Showers Tonight

The Leonid meteor shower streaks over Joshua Tree
during a spectacular display in 2001. (Newscom)


Leonid Meteor Shower Times: When You Should Look Skyward -- Christian Science Monitor

In 2009, the Leonid meteor shower will strike between 3:30 a.m. and 5:30 a.m. Eastern time.

The Leonid meteor shower is back in town Tuesday morning. Every November, Earth gets a spritz of meteor light in the night sky. While Asia will get the best show this year, early birds in North America can enjoy a few dozen Leonid meteors per hour.

Thinking of getting up early? Americans, set your clocks to 3:30 a.m. East Coast time. The shower will run from then until about 5:30 a.m. However, no matter where you live, you may luck out and catch a stray meteor anytime between 1 a.m. and dawn.

Read more
....

Shuttle Atlantis Lifts Off for 11-Day Mission



From The New York Times:

KENNEDY SPACE CENTER, Fla. — The shuttle Atlantis vaulted into orbit Monday and set off after the International Space Station, carrying 15 tons of spare parts and equipment as a hedge against failures after the shuttle fleet is retired next year.

“We’re looking for the long-term outfitting of station,” said the shuttle commander, Col. Charles O. Hobaugh of the Marines.

With Colonel Hobaugh and Capt. Barry E. Wilmore, a Navy pilot, at the controls, Atlantis’s twin solid-fuel boosters ignited with a blast of fire at 2:28 p.m., Eastern time, instantly pushing the winged spacecraft away from pad 39A at the Kennedy Space Center.

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More News On Today's Shuttle Launch

Shuttle Atlantis takes off on station delivery mission -- CNET
NASA launches shuttle Atlantis to space station -- Reuters
Space shuttle Atlantis lifts off on supply mission -- AP
Space Shuttle Atlantis Blasts off on Delivery Mission -- FOX News
Atlantis heads for ISS with spare parts: Last shuttle blast of year -- The Register

Weapons Manufacturer Unveils Black Box for Guns

Black Box Gun Tracking gun and user performance since 2009 FN Herstal

From Popular Science:

The gadget would record details of every shot fired to track both weapon and user performance.

Military and police higher-ups can now see just how many shots a particular weapon fired during the course of a battle or incident. The Register reports that a new black box device designed for rifles and submachine guns could report on ammo usage and weapon jamming, as well as who shot whom at what time.

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Why NCAR’s Meehl Paper On High/Low Temperature Records Is Bunk

This graphic shows the ratio of record daily highs to record daily lows observed at about 1,800 weather stations in the 48 contiguous United States from January 1950 through September 2009. Source NCAR

From Watts Up With That?

One wonders why the story of a new paper covered on WUWT: NCAR: Number of record highs beat record lows – if you believe the quality of data from the weather stations did not include the 1930’s and 1940’s and earlier, conspicuously missing from the NCAR graphic above.

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United States Using Less Water Than 35 Years Ago

Crop irrigation. The largest uses of fresh surface water were power generation and irrigation. (Credit: USDA - Natural Resources Conservation Service)

From Science Daily:

Science Daily (Nov. 16, 2009) — The United States is using less water than during the peak years of 1975 and 1980, according to water use estimates for 2005. Despite a 30 percent population increase during the past 25 years, overall water use has remained fairly stable according to a new U.S. Geological Survey report.

Assistant Secretary of the Interior Anne Castle announced the report, Estimated Use of Water in the United States in 2005, as part of her keynote speech on October 29 at the Atlantic Water Summit in the National Press Club.

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Texting A Pain In The Neck, Study Suggests


From Live Science:

Texting long messages can be a pain in the neck — literally.

The repetitive action of working your fingers across the number pad of your cell phone can cause some of the same chronic pain problems previously confined to those who'd spent a lifetime typing, a new study suggests.

The possible connection is particularly worrying given how much teens and young adults — and increasingly those in professional settings — are texting nowadays, said Judith Gold of Temple University in Philadelphia, who carried out one of the first studies on the potential connection.

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Using CO2 To Extract Geothermal Energy

Photo: Hot air: The Soultz-sous-Fôrets geothermal plant in Alsace, France, pumps water into fractured rock to extract heat and thus generate electricity. Researchers backed by $16 million in federal stimulus funds seek to prove that such geothermal plants could generate 50 percent more heat by cycling carbon dioxide underground instead.
Credit: Géothermie Soultz


From Technology Review:

Carbon dioxide captured from power plants could make geothermal energy more practical.

Carbon dioxide generated by power plants may find a second life as a working fluid to help recover geothermal heat from kilometers underground. Such a system would not only capture the carbon dioxide and keep it out of the atmosphere, it would also be a cost-effective way to use the greenhouse gas to generate new power.

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Two Rival Supercomputers Duke It Out For Top Spot

Kraken, a Cray XT5 system, is the world's sixth-fastest computer. Photo/Adam Brimer

From PC World:

The top two systems on June's list of the Top 500 supercomputers swapped places on the latest list, released Monday.

A Cray supercomputer at Oak Ridge National Laboratory has regained the title of the world's most powerful supercomputer, overtaking the installation that was ranked at the top in June, while China entered the Top 10 with a hybrid Intel-AMD system.

The upgraded Jaguar supercomputer at Oak Ridge, in Tennessee, now boasts a speed of 1.759 petaflops per second from its 224,162 cores, while the IBM Roadrunner system at the U.S. Department of Energy's Los Alamos National Laboratory in New Mexico slowed slightly to 1.042 petaflops per second after it was repartitioned. A petaflop is one thousand trillion calculations per second.

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Egypt To Apply For First Arabic-Alphabet Internet Domain Name


From CTV News/AP:

SHARM EL-SHEIK, Egypt — Egypt will apply for the first Internet domain written in Arabic, its information technology minister said Sunday at a conference grouping Yahoo's co-founder and others to discuss boosting online access in emerging nations.

Tarek Kamel said Egypt on Monday would apply for the new domain -- pronounced ".masr" but written in the Arabic alphabet -- making it the first Arab nation to apply for a non-Latin character domain. The effort is part of a broader push to expand both access and content in developing nations, where the Internet remains out of reach for wide swaths of the population.

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The Ghost Wineries of Napa Valley

The Freemark Abbey is a fully functional ghost winery located in the
Napa Valley just north of St. Helena. Matt Kettmann


From The Smithsonian:

In the peaks and valleys of California’s wine country, vinters remember the region’s rich history and rebuild for the future

Atop Howell Mountain, one of the peaks that frame California’s wine-soaked Napa Valley, the towering groves of ponderosa pines are home to one of the region’s legendary ghost wineries. Born in the late 1800s, killed off by disease, disaster, depression, and denial in the early 20th century, and then laid to solemn rest for decades, La Jota Vineyard — like its countless sister specters found throughout the region — is once again living, breathing, and making world-class wine. And for those who care to listen, this resurrected winery has plenty to say about everything from America’s melting pot history and the long-celebrated quality of West Coast wine to strategies for sustainability and using the power of story to boost sales.

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In 2012, Neutrinos Melt The Earth's Core, And Other Disasters

Scence from 2012 courtesy of Columbia Tristar Marketing Group

From Scientific American:

During an early screening of Roland Emmerich's latest disaster flick 2012, which opens today, laughter erupted in the audience near the end of the film thanks to corny dialogue and maudlin scenes (among the biggest guffaw getters: a father tries to reconnect with his estranged son on the telephone, only to have the son's house destroyed just before he could say anything). Nobody wants to take anything seriously in a movie like this, in which digital mayhem is the draw. But if it were an audience of physicists, the laughter probably would have started in the first five minutes. You can't take any of the science seriously, although I give the filmmakers credit for creativity.

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2009 Leonid Meteor Shower: "Strong Outburst" Expected

Leonid meteors streak across the sky over Joshua Tree National Park in California on November 18, 2001. The horizontal streaks are stars and planets caught moving in the long-exposure photograph. During the 2009 Leonid meteor shower, sky-watchers—depending on where they are—may see anywhere from 30 to 300 shooting stars an hour, experts say. Photograph by Reed Saxon, AP

From National Geographic:

During the 2009 Leonid meteor shower, you may see anywhere from 30 to 300 shooting stars an hour, depending on whether you're in the right place to see the showy peak on November 17, experts predict.

With the highest number of meteors streaking across the skies around 4:45 p.m. ET, the Leonids peak will be effectively invisible for viewers in North America and Europe.

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World's Worse Case of Arsenic Poisoning Solved

Many people in Bangladesh continue to drink arsenic contaminated water (Source: USGS)

From ABC News (Australia)/AFP/Reuters:

Researchers have finally worked out what led to the widespread release of arsenic into drinking water in rural Bangladesh, affecting millions of people.

Dubbed 'the worst mass poisoning in history', the incident has puzzled scientists for decades.

Now a team publishing in Nature Geoscience say that tens of thousands of man-made ponds are to blame.

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