Pictures We Love: Best of January

Photograph by Dieu Nalio Chery, AP

The magnitude 7 earthquake that struck near Port au Prince, Haiti, in January 2010 so devastated the country that recovery efforts are still ongoing.

Professional dancer Georges Exantus, one of the many casualties of that day, was trapped in his flattened apartment for three days, according to news reports. After friends dug him out, doctors amputated his right leg below the knee. With the help of a prosthetic leg, Exantus is able to dance again. (Read about his comeback.)

Why We Love It

"This is an intimate photo, taken in the subject's most personal space as he lies asleep and vulnerable, perhaps unaware of the photographer. The dancer's prosthetic leg lies in the foreground as an unavoidable reminder of the hardships he faced in the 2010 earthquake. This image makes me want to hear more of Georges' story."—Ben Fitch, associate photo editor

"This image uses aesthetics and the beauty of suggestion to tell a story. We are not given all the details in the image, but it is enough to make us question and wonder."—Janna Dotschkal, associate photo editor

Published February 1, 2013

Read More..

Body of Missing Mom Reportedly Found in Turkey













The body of an American woman who went missing while on a solo trip to Turkey has been pulled from a bay in Istanbul, and nine people have been held for questioning, according to local media.


Sarai Sierra, 33, was last heard from on Jan. 21, the day she was due to board a flight home to New York City.


The state-run Andolu Agency reported that residents found a woman's body today near the ruins of some ancient city walls in a low-income district, and police identified the body as Sierra.


Rep. Michael Grimm, R-NY, who with his staff had been assisting the Sierra family in the search, said he was "deeply saddened" to hear the news of her death.


"I urge Turkish officials to move quickly to identify whomever is responsible for her tragic death and ensure that any guilty parties are punished to the fullest extent of the law," he said in a statement.






Courtesy Sarai Sierra's family











Footage Shows Missing New York Mom in Turkish Mall Watch Video









NYC Woman Goes Missing While Traveling In Turkey Watch Video









New York Mother Goes Missing on Turkish Vacation Watch Video





The New York City mother, who has two young boys, traveled to Turkey alone on Jan. 7 after a friend had to cancel. Sierra, who is an avid photographer with a popular Instagram stream, planned to document her dream vacation with her camera.


"It was her first time outside of the United States, and every day while she was there she pretty much kept in contact with us, letting us know what she was up to, where she was going, whether it be through texting or whether it be through video chat, she was touching base with us," Steven Sierra told ABC News before he departed for Istanbul last Sunday to aid in the search.


Steven Sierra has been in the country, meeting with U.S. officials and local authorities, as they searched for his wife.


On Friday, Turkish authorities detained a man who had spoken with Sierra online before her disappearance. The identity of the man and the details of his arrest were not disclosed, The Associated Press reported.


The family said it is completely out of character for the happily married mother, who met her husband in church youth group, to disappear.


She took two side trips, to Amsterdam and Munich, before returning to Turkey, but kept in contact with her family the entire time, a family friend told ABC News.


Further investigation revealed she had left her passport, clothes, phone chargers and medical cards in her room at a hostel in Beyoglu, Turkey.



Read More..

Astrophile: A scorched world with snow black and smoky






















Astrophile is our weekly column on curious cosmic objects, from the solar system to the far reaches of the multiverse






















Object: Titanium oxide snow
Location: The hot-Jupiter planet HD 209458b












There is something magical about waking up to discover it has snowed during the night. But there's no powdery white blanket when it snows on exoplanet HD 209458b. Snow there is black, smoky and hot as hell – resembling a forest fire more than a winter wonderland. Put it this way: you won't be needing mittens.












HD 209458b belongs to a family called hot Jupiters, gas-giant planets that are constantly being roasted due to their closeness to their sun. By contrast, the gas giants in our immediate neighbourhood, including Jupiter, are frigid, lying at the solar system's far reaches.












HD 209458b is also noteworthy because it is tidally locked, so one side is permanently facing towards its star while the other is in perpetual night. On the face of it, these conditions wouldn't seem to invite snow: temperatures on the day side come close to 2000° C, while the night side is comparatively chilly at around 500° C.












Snow made of water is, of course, impossible on this scorched world, but the drastic temperature differential sets up atmospheric currents that swirl material from the day side to night and vice versa. That means that any substances with the right combination of properties might be gaseous on the day side and then condense into a solid on the night side, and fall as precipitation. Say hello to titanium oxide snow.











Stuck on the surface













Although oxides of titanium make up only a small component of a hot Jupiter's atmosphere, these compounds have the right properties to fall as snow. But there was a snag that could have put a stop to any blizzards. Older computer models of hot Jupiters suggested that titanium oxides condensing in the air on the night side would snow – and remain on the relatively cool surface forever. "Imagine on Earth if you had no mechanism to evaporate water, it would never rain," says Vivien Parmentier of the Côte d'Azur Observatory in Nice, France.












Now he and colleagues have created a more detailed 3D computer model that shows that the snow can become a gas again as it falls and the temperature and pressure increase. Strong updraughts can then blow the titanium oxides back to the upper atmosphere. "The gas can come back on the top layers and snow again and again," says Parmentier.












Snowfall on HD 209458b would be like none you've ever seen. Though titanium dioxide is white and shiny, for example, the snowflakes would also contain silica oxides from the atmosphere, making them black. Since the atmosphere is also dark, snowstorms on the planet would be a smoky affair, the opposite of the white-outs we get on Earth. "It would be like being in the middle of a forest fire," says Parmentier.











Although the team studied a particular hot Jupiter, their model should apply equally to other planets of this type, suggesting hot snow is a common occurrence. Parmentier says we may have already spotted snow clouds on another hot Jupiter, HD 189733b, as spectral analysis of the planet suggests the presence of microscopic particles in its atmosphereMovie Camera.













David Sing of the University of Exeter, UK, who helped identify such particles on HD 189733b, says the team's new model goes a long way to explaining how titanium oxides behave on hot Jupiters. "We're pretty used to water condensing on Earth; there it is titanium because the temperatures are so much hotter."












Hot, black snow – now that would be something to wake up to.












Reference: http://arxiv.org/abs/1301.4522


















































If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.




































All comments should respect the New Scientist House Rules. If you think a particular comment breaks these rules then please use the "Report" link in that comment to report it to us.


If you are having a technical problem posting a comment, please contact technical support.








Read More..

Apple is tops in US in mobile phones: surveys






SAN FRANCISCO: Apple dethroned Samsung as the top US mobile phone vendor in the final quarter of last year, claiming a record share of 34 per cent, research firm Strategy Analytics reported Friday.

Apple shipped an estimated 17.7 million iPhones as "robust demand" for Internet connections on the move caused overall shipments of mobile phones to grow to 52 million in the United States, up four per cent from the same three-month period in 2011.

"Apple has become the number one mobile phone vendor by volume in the United States for the first time ever," Strategy Analytics said.

"Apple's success has been driven by its popular ecosystem of iPhones and App Store, generous carrier subsidies, and extensive marketing around the new iPhone 5 model."

South Korea-based Samsung shipped 16.8 million mobile phones in the US in the quarter, seeing its share of the market increase five per cent to 32 per cent but "not enough to hold off a surging Apple," according to Strategy Analytics.

Samsung had been the number one mobile phone vendor in the US since 2008 and will "surely be keen to recapture that title," the research firm said.

A separate survey highlighted Apple's top share of the smartphone market in the United States.

Industry tracker NPD Group said Apple held 39 per cent of the US smartphone market, even though its lead narrowed over Samsung, which boosted its market share to 30 per cent. A year earlier, Apple had 41 per cent to 21 per cent for Samsung, NPD figures showed.

"Even taking into account the tremendous sales growth of the Galaxy III and other Samsung smartphones, the iPhone is still king of the US-market hill," said NPD analyst Stephen Baker.

"In addition to strong US sales of iPhone 5, Apple has been bolstered by strong and continued demand for older, less-expensive iPhone models."

NPD said the iPhone 5 was the most popular smartphone in the US market in the past quarter, followed by the Samsung Galaxy S III.

The older versions of Apple's smartphone, the iPhone 4S and iPhone 4, were in third and fourth places, respectively, followed by Samsung's Galaxy S II, NPD said.

- AFP/jc



Read More..

Battle cry: HTC's CEO leads the 'M7' chant



HTC CEO Peter Chou tests the upcoming M7 smartphone.



(Credit:
cnyes.com)


Do you know who's overflowing with excitement for the not-yet-official HTC M7 smartphone? None other than HTC CEO Peter Chou, of course.


A video from HTC's year-end party shows the company's head honcho on stage playing with the M7, and even snapping photos of the crowd. CEO Chou can be seen rallying a team of employees with a battle cry.



During the video, Chou chants "HTC" a few times, followed by a couple of rounds of "M7," and finally capped off with screams of "HTC One!"


The grainy video seemingly confirms recent rumors of two color options for the anticipated flagship device; Chou holds both a silver and black version of the handset suspected to be the M7. Strangely, the phones have what appear to be a pair of horizontal lines across the back.


The leaked photos and renders we've seen thus far do not show these lines, so maybe there's some serious 11th hour work from Team M7.



HTC has scheduled a pair of press events for February 19 where it is expected that the M7 will take center stage. CNET will be in attendance and will provide an early impressions of the new smartphone.


I recently penned an open letter to HTC where I suggested that the company scream from the rooftops about the new device. Perhaps the CEO has taken my advice.


Read More..

Best Science Pictures of 2012 Announced

Image courtesy Pupa U.P.A. Gilbert and Christopher E. Killian, U.W. Madison via Science/AAAS

A micrograph, or microphotograph, of a sea urchin's crystalline tooth won first place and people's choice for photography in the 2012 International Science and Engineering Visualization Challenge.

Colors applied with Photoshop reveal the interlocking crystals that form the choppers of Arbacia punctulata. The biomineral crystals, captured by biophysicists from the University of Wisconsin, Madison, grow and intertwine to reinforce and sharpen a sea urchin's teeth. Made of calcite, which is also found in limestone and seashells, the crystals are tough enough to grind holes in rocks to create shelters.

"These winners continue to amaze me every year," said Monica M. Bradford, executive editor of the journal Science, in a statement. "The visuals are not only novel and captivating, but they also draw you into the complex field of science in a simple and understandable way."

Sponsored by Science and the National Science Foundation (NSF), the international competition honors recipients who use visual media to promote understanding of scientific research. Judging criteria included visual impact, effective communication, freshness, and originality. (See some of the 2011 winners.)

Lacey Gray and Katia Andreassi

Published February 1, 2013

Read More..

Secret Video Shows Bomb Dogs Failing Tests













A new government investigation suggests that the Transportation Security Administration is not collecting enough detailed information to know if its bomb dogs are well trained and capable of finding bombs at the nation's airports, and includes secret video that shows the dogs failing tests to detect explosives.


TSA has been testing bomb dogs in Miami and Oklahoma City and will be testing them at Dulles airport, outside Washington, D.C., this month.


A GAO report released this week, however, says that the passenger-screening canines have not been adequately tested, and included secret video shot over the past year that showed the dogs failing to detect explosives properly at the test airports.


"As part of our review," wrote the GAO, "we visited two airports at which PSC teams have been deployed and observed training exercises in which PSC teams accurately detected explosives odor (i.e., positive response), failed to detect explosives odor (i.e., miss) and falsely detected explosives odor (i.e., non-productive response)."






Miguel Medina/AFP/Getty Images











Jordi Muñoz Wants You To Have a Drone of Your Own Watch Video









North Carolina Woman Fights to Keep Rescued Fawn Watch Video







The report also said that "TSA could have benefited from completing operational assessments of PSCs before deploying them on a nationwide basis to determine whether they are an effective method of screening passengers in the U.S. airport environment."


In a statement, the TSA said it "acknowledges the need to further examine the data collected over a longer term. To that end, the National Canine Program (NCP) will reestablish annual comprehensive assessments. Beginning in March 2013, TSA plans to expand the Canine Website to improve functionality and reporting capabilities addressing a GAO recommendation."


It also said that this month it would complete effectiveness assessments at Miami, Oklahoma City and Dulles airports, and that it would identify the proper places for the dogs to be deployed at 120 airports by the end of fiscal 2013.


The cost of keeping bomb-sniffing dogs on the government's payroll has almost doubled in the past two years, from $52 million to more than $100 million. Each TSA dog team costs the taxpayers $164,000 dollars a year.


"They want to do the right thing," aviation expert Jeff Price told ABC News, "but the homework hasn't been done. A lot of money gets spent before they know something works."


Click Here for the Blotter Homepage.


Follow ABCNewsBlotter on Facebook


Click Here for the Blotter Homepage.



Read More..

Swarm-mongering: Brainless blobs flock together











































Birds of a feather flock together and now so do brainless, inanimate blobs. Made of microscopic particles, the artificial swarms could shed light on the mysterious mechanisms behind the natural swarming seen in fish and birds. They might also lead to materials with novel properties like self-healing.












Animals such as birds, fish and even humans that move together in swarms have individual intelligence, but Jérémie Palacci of New York University and colleagues wondered whether inanimate objects could also swarm. "From a physicist's point of view, if many different systems behave in the same way there must be an underlying physical rule," he says.












To explore this idea, the team created microscopic plastic spheres, each one with a cubic patch of haematite, an iron oxide, on its surface. When submerged in hydrogen peroxide, the spheres spread out in a disordered fashion. The team then shone blue light on the particles, causing the haematite cubes to catalyse the breakdown of any nearby hydrogen peroxide into water and oxygen. As hydrogen peroxide concentration dropped temporarily in these regions due to the reaction, osmotic forces cause more hydrogen peroxide to flow into them, and that in turn buffets the spheres. The whole process then repeats.











Self-healing swarm













When two spheres come close enough to each other, the balance of chemical forces shifts so that the two spheres are attracted. If there are enough spheres in the same place they will cluster together to form shapes of symmetrically arranged particles, which the team call crystals (see video, above). These crystals continue to be buffeted by the movement caused by the breakdown of hydrogen peroxide – but now they move together as one object, replicating a life-like swarm. Switch off the light, however, and the reaction stops, causing the crystal to lose the forces that hold it together, and the particle distribution becomes disordered once again.












"This system shows that even though the particles have no social interaction or intelligence, you can exhibit collective behaviour with no biology involved," says Palacci. Since the haematite is magnetic, it is even possible to steer the crystals in one direction by applying a magnetic field. Such control might be useful if the artificial swarms are to be harnessed for applications.












As the particles automatically fill any gaps that form in the crystal, again thanks to the chemical dynamics of the system, they could be used to create a self-assembling, self-healing material. The work is published in the journal Science today.











Schooled by fish













Iain Couzin of Princeton University says these kinds of systems are very useful for studying biological collective behaviour because researchers have complete control over their interactions – unlike natural systems.












His team has its own swarming experiment published in the same issue of Science, based on schools of fish that prefer to stay in shade. Their paper shows that shining a light on some of the fish in the school causes them to speed up, to get away from the light. But as a result, non-illuminated fish also speed up, even though, if acting purely as individuals, they would have had no reason to do so. "We show just by using simple interactions that schools can have a sense of responsiveness to the environment that individuals do not have," he says.












Couzin sees no reason why such behaviour should be limited to natural systems. "In future it may be possible to create systems of particles that can make collective decisions – something we often think of as only possible in biological systems," he says.












Journal references: Living crystals: Science, DOI: 10.1126/science.1230020; Fish: Science, DOI: 10.1126/science.1225883


















































If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.




































All comments should respect the New Scientist House Rules. If you think a particular comment breaks these rules then please use the "Report" link in that comment to report it to us.


If you are having a technical problem posting a comment, please contact technical support.








Read More..

Wall Street Journal says hit by Chinese hackers too






WASHINGTON: The Wall Street Journal said Thursday its computers were hit by Chinese hackers, the latest US media organisation citing an effort to spy on its journalists covering China.

The Journal made the announcement a day after The New York Times said hackers, possibly connected to China's military, had infiltrated its computers in response to its expose of the vast wealth amassed by a top leader's family.

The Journal said in a news article that the attacks were "for the apparent purpose of monitoring the newspaper's China coverage" and suggests that Chinese spying on US media "has become a widespread phenomenon."

"Evidence shows that infiltration efforts target the monitoring of the Journal's coverage of China, and are not an attempt to gain commercial advantage or to misappropriate customer information," said a statement from Paula Keve of Journal parent Dow Jones, a unit of Rupert Murdoch's News Corp.

The Journal gave no timeline for the attacks but said a network overhaul to bolster security had been completed on Thursday.

"We fully intend to continue the aggressive and independent journalism for which we are known," Keve said.

On Wednesday, The New York Times reported that hackers have over the past four months infiltrated computer systems and stole staff passwords.

The effort has been particularly focused on the emails of Shanghai bureau chief David Barboza, the newspaper said.

According to a Barboza story published on October 25, close relatives of Chinese Premier Wen Jiabao have made billions of dollars in business dealings.

"Chinese hackers, using methods that some consultants have associated with the Chinese military in the past, breached The Times' network," the newspaper said, citing a wealth of digital evidence gathered by its security experts.

The newspaper said the IT consultants believed the attacks "started from the same university computers used by the Chinese military to attack United States military contractors in the past."

The hackers stole corporate passwords and targeted the computers of 53 employees including former Beijing bureau chief Jim Yardley, who is now the Times' South Asia bureau chief based in India.

The Times said Bloomberg News was also targeted by Chinese hackers, after publishing in June a report on the wealth accumulated by relatives of Xi Jinping. In November, Xi was elevated to leader of the Chinese Communist Party.

In a related development, CNN said its international service went down for several minutes in response to its reporting on the hacking at the New York Times.

"CNNI went dark for 6 minutes," said a tweet from CNN International anchor Hala Gorani. "#China blacks out CNN for @HalaGorani interview on hacking of @nytimes."

In Beijing, China dismissed any notion that it was involved in any hacking.

"The competent Chinese authorities have already issued a clear response to the groundless accusations made by the New York Times," Foreign Ministry spokesman Hong Lei told reporters in Beijing.

"China is also a victim of hacking attacks," he said. "Chinese laws clearly forbid hacking attacks, and we hope relevant parties take a responsible attitude on this issue."

The US online security firm Symantec, cited by the New York Times for having failed to prevent the infiltration, issued its own statement deflecting any blame.

"Advanced attacks like the ones the New York Times described... underscore how important it is for companies, countries and consumers to make sure they are using the full capability of security solutions," the company said.

"Turning on only the signature-based anti-virus components of endpoint solutions alone are not enough in a world that is changing daily from attacks and threats."

- AFP/jc



Read More..

Popular security utilities for OS X put to the test



Even though the prevalence of threats for the Mac remains relatively minimal, malware on OS X has raised its ugly head a bit in the past few years. Some in the Mac community have been affected by threats such as the Flashback malware, DNSChanger, and the MacDefender Trojan, among others. As a result, while the most effective way of keeping a Mac secure is to follow safe browsing and computing practices, you may also be considering using anti-malware utilities. But which ones perform best?


Recently,
Mac security analyst Thomas Reed attempted to tackle this question in part by putting a number of popular antivirus utilities to the test. To do so, Reed took a collection of 128 malware samples that included both recent active malware threats and extinct threats, and ran a number of popular antivirus utilities to see how they managed this collection. Arguably, the sample size of 128 might not be enough to give a complete assessment of these programs' capabilities, but it should be adequate enough for comparative purposes.


The antivirus tools used in the tests included a number of free and paid scanner packages from Avast, VirusBarrier, Sophos, Dr. Web, ESET, Kaspersky, F-Secure, ClamXav, Norton, MacKeeper, and its included Avira engine, among others. How did each of these do?


While most utilities were able to detect many of the threats run past them in the tests, the difference in what was detected is a bit surprising. Only about half of those tested were able to detect over 90 percent of the threats, and about a third were only able to detect up to 75 percent of the threats. Thomas offered a passing grade to those that were able to detect 79 percent of threats or more, which included about three fourths of the programs, but the determination of what constitutes acceptable performance is up to the end user.


Those at the top of the list were Avast, VirusBarrier, Sophos, and Dr. Web Light; however, not far behind were ESET, Avira (and MacKeeper, which uses the Avira engine), F-Secure, and Kaspersky.


The anti-malware tools that did not fare as well included the popular ClamXav, Norton's Antivirus and iAntivirus (the latter of which has no auto-updates and therefore had out-of-date definitions) and McAfee, which detected between 50 to 80 percent of threats. Two utilities tested, WebRoot SecureAnywhere and SecureMac's MacScan, both detected under 30 percent of the threats.


While performance is likely the primary criterion people use to choose a specific anti-malware program, keep in mind there are other factors to consider beyond such test results. Despite being thorough, some security software packages include a number of additional features that can be a bit intrusive in the system and have at times caused stability and performance problems for some users. Others still might not include all of the features that one wants in a security package; for example, Norton's iAntivirus lacks an auto-update feature, so its definitions database is up to a few months out of date. Therefore, before installing a security package, be sure to read reviews and user experiences about the latest versions of each and see how they have behaved in different setups.


For a full look at his results and analysis, head over to Thomas Reed's Mac antivirus testing to see the methods, results, objections, and special cases considered for these tests.




Questions? Comments? Have a fix? Post them below or !
Be sure to check us out on Twitter and the CNET Mac forums.


Read More..