Companies paying more bills on time

SINGAPORE: Companies are paying more bills on time, according to the Commercial Credit Bureau.

The bureau said the number of prompt commercial payments rose to 51.59 per cent in the fourth quarter of last year. That is up by a moderate 2.29 percentage points from 49.3 per cent in the previous quarter.

Prompt payment means a company has paid at least 90 per cent of its total bills within agreed upon payment terms.

It was the first time in two years that 50 per cent of prompt commercial payment transactions were recorded. This comes on the heels of a slight economic uptick in the fourth quarter last year. The Ministry of Trade and Industry estimates the economy grew by 1.1 per cent year-on-year in Q4 2012.

Year-on-year payment promptness also increased 12.09 per cent per cent from 39.5 per cent last year. Payment promptness was at its peak in Q3 2012 when it made up 61.2 per cent of all commercial transactions in Singapore.

But the number of slow payments (when a company pays less than 50 per cent of its bills on time) increased slightly last quarter, up 0.79 percentage points to 40.99 per cent.

The construction industry saw the biggest drop in defaults. Slow payments fell 8.24 percentage points to 41.19 per cent quarter-on-quarter. A year-on-year comparison shows a decline of 17.11 percentage points in payment defaults.

With heavy government investments in industrial projects and a strong pipeline of nationwide rail transit and road infrastructure projects, the downward trend in slow payments is likely to continue into the next quarter.

The retail industry - traditionally the worst paymaster - also saw defaults fall on the back of strong seasonal sales in December.

The retail sector registered 54.73 per cent slow payments, a decrease of 4.98 percentage points from Q3 2012.

The wholesale sector registered the lowest proportion of slow payments at 35.7 per cent a 4.68 percentage point increase from the previous quarter.

- CNA/fa

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For an iWatch to kick butt, Apple must innovate in batteries

If Apple is hard at work on an "iWatch," it will have to overcome battery issues bedeviling existing smartwatch makers.

This new crop of wrist devices has a lot more in common with smartphones than your old Timex. They have increasingly large displays, and can ferry over notifications and other data, acting as a second screen of sorts for your smartphone. For many of the latest models, that extra utility is not without a compromise: You've got to plug it in at the end of the day.

Charging a smartphone every day can be an annoyance, but most people are used to it. Watches are a different beast. Today's digital watches are designed much the same way they were 20 years ago, to last years at a time between battery replacements. That's held true for so long because they do little besides tell time.

While companies are doing all they can to reduce the power consumption of chips and screens, the fact remains that batteries haven't undergone the same technological sea change as other major portable device components. There haven't been the kind of advances in capacity that would let devices be used for days or even weeks on a single charge while keeping things small.

Bigger is better
On the smartphone front, manufacturers have responded to the power problem by increasing the capacity of the batteries that are shipped in phones, said Satoru Rick Oyama, a principal analyst at IHS Global. Companies have gone from 1,000mAh batteries to 1,500mAh, and will soon go with 2,000mAh as the standard, Oyama said. These higher-capacity batteries come at a price -- the packs often are larger.

That capacity ramp-up has worked out because manufacturers like Samsung have started making their smartphones bigger, providing more room inside for batteries. There are also extremes like Motorola's Droid Razr Maxx, which comes with a 3,300mAh battery, an 85 percent increase over the battery that shipped with the standard Droid Razr. That's been fine for something that can go into a pocket or purse, but there's a limit when it comes to a limb on the human body.

Pebble's smartwatch extends its battery time by using an e-paper display.

(Credit:
CNET)

One of the clearest examples of how well that works when scaled down is Apple's sixth-generation iPod Nano, which the company actually marketed as a watch, with built-in watch faces. Inside was a tiny 105mAh battery that was geared for 24 hours of music playback. But in day-to-day use, that ended up being just a few days if you used features like the built-in FM radio and pedometer. The latest model, released last October, did away with the watch idea completely.

Smartwatch upstarts like the Pebble, which raised more than $10 million on Kickstarter, got around this issue by going with a different screen technology that uses less power. Instead of a backlit LCD panel, Pebble went with an e-paper display and low-power Bluetooth, which together require less juice and mean that the watch can be used for up to a week between charges.

In other words, if we're expecting a large, bright LCD screen, constant connectivity, and some of the same capable innards we're getting in iPhones and iPods, we can't ignore the issue of integrating a battery large enough to keep things running.

What's now; what's next
In the world of batteries, lithium ion and lithium polymer remain the most commonly used technologies, though lithium polymer is becoming more popular.

The two technologies are similar, but the polymer version has certain benefits that have made it increasingly attractive for use in portable gadgets. Lithium polymer is more expensive than lithium ion, but is safer, and can be manufactured into a variety of different shapes. By comparison, lithium ion has been limited to cylinders or flat, rectangular boxes. This attribute has led to some of the advances in the types of form factors manufacturers have made.

"For now, the go-to for the foreseeable future will still be lithium polymer batteries," said Allan Yogasingam, a technical research manager at UBM Tech Insights. "The reason for that is that li-polymer has a strong flexibility that allows products like
tablets and notebooks and now ultrabooks to feature lighter and slimmer designs. After that, it's a bit of an 'arms race' to see which battery technology will have the most appeal to consumer electronic manufacturers."

Among the frontrunners in battery technology is lithium imide, Yogasingam said. It has higher density than the lithium polymer batteries, is more durable, and is better at recharging -- two major benefits for something that will be on the go. (Find out more about lithium imide here.)

Down the road there's also the promise of lithium air batteries. IBM has been developing lithium air batteries chiefly to power electric
cars, but such batteries should work in mobile devices after being scaled down, said Michael Karasick, vice president and director of IBM's Almaden Research Lab in San Jose, Calif. He noted that such technology will allow batteries to either be one-tenth their current size or last 10 times as long. The rub? It could take years before they're available, Karasick said.

Further on the horizon are silicon-based batteries and fuel cells, which promise to improve how batteries are built into mobile devices. Both have limitations, but researchers are working to advance the technologies enough that they can eventually be embedded into devices.

Also not to be ignored is a recent effort out of Silicon Valley called CalCharge, an accelerator of sorts that's hooking up companies that make batteries with universities working on battery technologies to come up with breakthroughs. Last week, the nearly year-old group announced plans (PDF) with San Jose State University to offer courses in battery-related technologies.

Changing how we charge
Apple's been an innovator in battery technology before. The company was aggressive in the use of nonremovable batteries in its products, beginning with the iPod, and leading to its use in notebooks, phones, and tablets. The payoff there, the company noted when unveiling its first
MacBook Pro with an integrated battery, was that it could put a larger battery pack into the same amount of space as before. And even though users were no longer able to swap it out, the 40 percent larger battery could keep the machine running longer.

Apple's done the same thing on its smartphones, choosing to make its battery packs nonremovable in the name of saving space. Its latest model, the iPhone 5, is slightly taller and ships with a 1,440mAh battery that's just a hair bigger than the 1,432mAh battery found in the smaller-screened iPhone 4S. Yet, the iPhone 5's ratings for 3G talk time and browsing over Wi-Fi are close to what they were two generations ago.

The company has shown signs of wanting to change that. In the last few years, it's filed a variety of noteworthy, battery-related patents, from hydrogen cells to a universal puck that could be used to juice up both phones and computers alike. Like all patents, it's unclear whether they'll ever end up in products, though it shows Apple is at least investigating the possibility.

The fact remains that there's only so much Apple can do with current battery technology. Industry researchers say new battery types should help extend the life of devices, but it's still likely years before those advancements hit the market.

Apple has an opportunity to do better than other smartwatches if its battery life is spectacular. The company has a track record of thinking outside the box when it comes to powering its devices, something that could help it stand apart from other wearable tech. But if it can't make that happen in time, there's a plan B.

"It's almost more about marketing and retraining the consumer than it is about improving battery life," said Donald Saxman, project analyst at Massachusetts-based tech market research firm BCC Research. "With every technology, we get incremental improvements...but any order of magnitude improvement where there's a double or 10-times improvement in battery life means we have to come up with a new approach."

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Confirmed: Dogs Sneak Food When People Aren't Looking

Many dog owners will swear their pups are up to something when out of view of watchful eyes. Shoes go missing, couches have mysterious teeth marks, and food disappears. They seem to disregard the word "no."

Now, a new study suggests dogs might understand people even better than we thought. (Related: "Animal Minds.")

The research shows that domestic dogs, when told not to snatch a piece of food, are more likely to disobey the command in a dark room than in a lit room.

This suggests that man's best friend is capable of understanding a human's point of view, said study leader Juliane Kaminski, a psychologist at the U.K.'s University of Portmouth.

"The one thing we can say is that dogs really have specialized skills in reading human communication," she said. "This is special in dogs." (Read "How to Build a Dog.")

Sneaky Canines

Kaminski and colleagues recruited 84 dogs, all of which were more than a year old, motivated by food, and comfortable with both strangers and dark rooms.

The team then set up experiments in which a person commanded a dog not to take a piece of food on the floor and repeated the commands in a room with different lighting scenarios ranging from fully lit to fully dark.

They found that the dogs were four times as likely to steal the food—and steal it more quickly—when the room was dark. (Take our dog quiz.)

"We were thinking what affected the dog was whether they saw the human, but seeing the human or not didn't affect the behavior," said Kaminski, whose study was published recently in the journal Animal Cognition.

Instead, she said, the dog's behavior depended on whether the food was in the light or not, suggesting that the dog made its decision based on whether the human could see them approaching the food.

"In a general sense, [Kaminski] and other researchers are interested in whether the dog has a theory of mind," said Alexandra Horowitz, head of the Dog Cognition Lab at Barnard University, who was not involved in the new study.

Something that all normal adult humans have, theory of mind is "an understanding that others have different perspective, knowledge, feelings than we do," said Horowitz, also the author of Inside of a Dog.

Smarter Than We Think

While research has previously been focused on our closer relatives—chimpanzees and bonobos—interest in dog cognition is increasing, thanks in part to owners wanting to know what their dogs are thinking. (Pictures: How smart are these animals?)

"The study of dog cognition suddenly began about 15 years ago," Horowitz said.

Part of the reason for that, said Brian Hare, director of the Duke Canine Cognition Lab and author of The Genius of Dogs, is that "science thought dogs were unremarkable."

But "dogs have a genius—years ago we didn't know what that was," said Hare, who was not involved in the new research. (See pictures of the the evolution of dogs, from wolf to woof.)

Many of the new dog studies are variations on research done with chimpanzees, bonobos, and even young children. Animal-cognition researchers are looking into dogs' ability to imitate, solve problems, or navigate social environments.

So just how much does your dog understand? It's much more than you—and science—probably thought.

Selectively bred as companions for thousands of years, dogs are especially attuned to human emotions—and, study leader Kaminski said, are better at reading human cues than even our closest mammalian relatives.

"There has been a physiological change in dogs because of domestication," Duke's Hare added. "Dogs want to bond with us in ways other species don't." (Related: "Dogs' Brains Reorganized by Breeding.")

While research reveals more and more insight into the minds of our furry best friends, Kaminski said, "We still don't know just how smart they are."

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Oscar Pistorius Charged With Premeditated Murder

A South Africa magistrate has charged Olympian Oscar Pistorius with a Schedule 6 offense, meaning that the alleged murder of his girlfriend was preplanned or premeditated.

Pistorius, a double-amputee who gained worldwide fame for running on carbon-fiber blades, allegedly shot his girlfriend, Reeva Steenkamp, four times at his gated home in Pretoria, South Africa, Feb. 14. South African prosecutors laid out part of their case against the 26-year-old athlete at today's bail hearing.

"[Pistorius] shot and killed an innocent woman," Gerrie Nel, the senior state prosecutor, said in court, adding that there is "no possible explanation to support" the notion that Pistorius thought Steenkamp was an intruder.

PHOTOS: Paralympic Champion Charged in Killing

Police responding to neighbors' calls about shouting and gunshots at Pistorius' home in the guarded and gated complex in the South African capital discovered Steenkamp's body. A 9-mm pistol was recovered at the home.

At the hearing, for which Pistorius arrived early at the courthouse this morning in a gray suit and tie,
the state made it clear it would be asking for the alleged crime to be categorized as preplanned or premeditated.

Conflicting Theories Muddle Oscar Pistorius Murder Case Watch Video

Oscar Pistorius Allegedly Fought the Night of Shooting Watch Video

Oscar Pistorius: Possibly Incriminating Information Leaked Watch Video

Prosecutors said Steenkamp had arrived at the house with the expectation of spending the night with Pistorius. They said that Steenkamp was shot while in the bathroom, which is about 21 feet from the main bedroom, and that the two rooms are linked by a passage. The door to the toilet was broken down from the outside, prosecutors said, inferring that the bathroom door had been locked.

Prosecutors believe it's a case of premeditated murder because, they say, Pistorius had to stop, put on his prosthetic legs, grab a gun and then walk 21 feet to a bathroom.

The premeditated murder charge means that he would be sentenced to life in prison if convicted, and that he is likely to be denied bail, which is expected to be decided later today.

South Africa has moved away from the jury system, in light of its brutally racist past, so Pistorius' fate will rest in the hands of a judge and two magistrates.

The prosecution said that the defense will no doubt argue for the charge to be downgraded to a Schedule 5 murder, but that was clearly wrong, according to the prosecution.

In a Schedule 5 offense, the onus is on the prosecution to prove that it would be in the interest of justice to keep the accused behind bars and not release him on bail. A Schedule 6 offense is a more serious category, wherein the defense has to prove that it would be in the interest of justice to release the accused person on bail.

The defense made it clear today that it is going to argue that Pistorius thought a burglar was inside that bathroom. The defense said prosecutors have no way to prove that he knew who was in there, and that they are prepared to submit evidence of other men who have shot wives and children, mistaking them for burglars.

News reports in local papers have said that police are investigating whether Pistorius had an anger-management problem that led to the incident. They focused on a bloody cricket bat that might have been used when Steenkamp died.

Meanwhile, the Steenkamp family planned a private memorial service at Victoria Park crematorium in the south coast city of Port Elizabeth today. As Pistorius stood before the court, Steenkamp's body was being transported to Port Elizabeth.

The Associated Press contributed to this report.

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Nuclear waste: too hot to handle?

Cumbria's decision to veto an underground repository for the UK shows how hard it is to find a long-term solution

THERE are 437 nuclear power reactors in 31 countries around the world. The number of repositories for high-level radioactive waste? Zero. The typical lifespan of a nuclear power plant is 60 years. The waste from nuclear power is dangerous for up to one million years. Clearly, the waste problem is not going to go away any time soon.

In fact, it is going to get a lot worse. The World Nuclear Association says that 45 countries without nuclear power are giving it serious consideration. Several others, including China, South Korea and India, are planning to massively expand their existing programmes. Meanwhile, dealing with the waste from nuclear energy can be put off for another day, decade or century.

It's not that we haven't tried. By the 1970s, countries that produced nuclear power were promising that repositories would be built hundreds of metres underground to permanently isolate the waste. Small groups of technical experts and government officials laboured behind closed doors to identify potential sites. The results - produced with almost no public consultation - were disastrous.

In 1976, West German politicians unilaterally selected a site near the village of Gorleben on the East German border for a repository, fuelling a boisterous anti-nuclear movement that seems to have no end in sight.

In the UK, the practice of choosing candidate sites with little public input was lampooned as "decide, announce, defend". In the US, backroom political manoeuvring led to the 1987 selection of Yucca Mountain in Nevada, at the time an under-populated gambling Mecca with no political muscle. Nevadans have been fighting what they call the "Screw Nevada Bill" ever since. The Obama administration pulled funding from Yucca Mountain to appease Senate majority leader Harry Reid, who is from Nevada, but the decision is still being battled in the courts and Congress, and the site is not completely off the table.

It took a while, but governments began to catch on that the top-down approach wasn't working. Time for a new strategy: look for a community willing to host a repository, using lots of touchy-feely language such as consent-based, transparent, adaptive, phased and terminable. On paper, it is win-win. Sweden and Finland, those paragons of Nordic cooperation and efficiency, are now in the home stretch for opening the world's first nuclear waste repositories, and are held up as proof-positive that the new policy can work.

Yet finding a volunteer community is the relatively easy part, because nuclear waste repositories bring jobs and money. But this doesn't mean their neighbours, or the regional powers that be, are going to go along with it.

This unfortunate aspect of policymaking became readily apparent in the UK last month. Everything seemed a sure shot for taking the next exploratory steps toward a nuclear waste repository in west Cumbria. Located next door to Sellafield, the granddaddy of the UK's nuclear facilities, two local communities comfortable with nuclear matters were in favour. The bugles and bunting were practically being unfurled when Cumbria County Council, concerned about tourism in the Lake District and possible future leaks, vetoed the plan. No other volunteers are in line as a backup.

The US recently announced its own volunteer-based policy, including promises to have an interim storage site up and running within eight years and a repository by 2048. It should know better. Is it forgetting its own track record, even with interim storage facilities?

In the 1980s, the community of Oak Ridge, Tennessee, agreed to host an interim facility. Statewide opposition shut it down. In the 1990s, the Skull Valley Band Of The Goshute Nation, a recognised Native American sovereign nation, volunteered to host an interim facility on its reservation in Utah. Last December, after more than 15 years of legal sparring with the state, the utilities working with the Goshute finally gave up.

The most recent volunteer community to be snubbed is Nye County, where Yucca Mountain is situated. After a commission chartered by the Obama administration recommended a new "consent-based" approach to break the deadlock over the site, Nye County officials wrote to US energy secretary Steven Chu giving their consent to host the repository at Yucca Mountain. Nevada Governor Brian Sandoval subsequently informed Chu that the state of Nevada will never consent to a repository.

It's now over half a century since the dawn of nuclear energy and dangerous and long-lived waste continues to pile up all over the globe. Something needs to be done. Although touted as the solution, finding a consenting community is merely the first step. The harder part is getting everyone else to sign on.

And then comes the real challenge - to determine if the ground beneath a volunteer community is geologically suitable for a repository. This daunting endeavour requires a decades-long process that is both politically sensitive and technically complex. Inevitably, surprises occur as studies go underground. Here, the public needs an independent, technically savvy group whom they trust to address their concerns and interpret the scientific results.

The difficulties of finding a happily-ever-after triad of volunteer community, consenting neighbours and geologically suitable site cannot be lightly dismissed. Replacing a top-down approach with a consent-based one is a step in the right direction, but it doesn't fundamentally solve the problem.

This article appeared in print under the headline "Down in the dumps"

William M. Alley oversaw the US Geological Survey's Yucca Mountain project from 2002 to 2010

Rosemarie Alley and William M. Alley are authors of Too Hot To Touch: The problem of high-level nuclear waste (Cambridge University Press)

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Budget to include schemes to develop manpower for SMEs: Teo Ser Luck

SINGAPORE: The upcoming Singapore budget will include schemes to develop a larger pool of Singaporean workers to cater to the needs of Small and Medium Enterprises (SMEs), said Minister of State for Trade and Industry Teo Ser Luck on Monday.

Mr Teo revealed this during a visit to a Soup Spoon outlet on Monday morning.

The minister said that the Singapore government is looking at how to help SMEs expand while managing business costs, given the rising cost of manpower in Singapore. Special attention will also be paid to smaller SMEs, he said.

"It is important for us not just to tighten labour, but to invest in our own resources, our local talents, to groom them and to grow them and to feed them into the pipeline for SMEs. That creates job opportunities for them, (and) also a career path for many of our local Singaporeans," said the minister.

Mr Teo said details of the schemes will be announced after Budget Day next week.

The Soup Spoon, for example, has rolled out initiatives to streamline business operations and improve workflow.

The food chain lowered rentals by reducing their outlets' kitchen sizes by two-thirds. It also adopted a new manpower scheduling system late last year, which helped the company optimise its workers by allocating manpower according to demand. The system has helped save the company an estimated S$150,000 annually in manpower costs.

The company's management has also expressed hopes to centralise the use of its part-timers so that it can be even more efficient in deploying workers to its 18 outlets.

Part-timers now form the majority, or 60 per cent, of the company's 300-strong staff, a twofold increase in proportion from the 30 per cent the company had in 2010.

With its revenue growing by 25 per cent annually since 2007, The Soup Spoon says it is focused on improving its productivity.

"For a lot of the food based companies, growth largely comes from outlets. So if you try to grow more outlets, and if you know (that) there are constraints like high rentals and low manpower, then the more you grow the more your problem grows significantly... It's a business model review (problem)," said Andrew Chan, managing director of The Soup Spoon.

- CNA/jc

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LG's 5.5-inch Optimus G Pro to reach U.S. in Q2

LG Optimus G Pro

(Credit:
LG Electronics)

After some earlier teasing, LG Electronics fully detailed its Optimus G Pro Android phone today, a high-end model with 5.5-inch screen, LTE networking, and a quad-core 1.7GHz processor.

LG often sells its phones first in its home market of South Korea, and it looks like that's the plan for the Optimus G Pro, too. But it'll arrive in other areas, too, including North America and Japan in the second quarter of 2013, LG said in an announcement a week ahead of the Mobile World Congress show. That's where the South Korean company will show off the phone and announced three lower-end L-series Android phones, the Optimus L7 II, L5 II, and L3 II.

The Optimus G Pro is a large-screen model that
Android smartphone makers such as HTC and Samsung have embraced in an effort to differentiate products from the smaller iPhone. The Optimus Pro G has a 5.5-inch, 1920x1080-pixel AMOLED screen with a linear resolution of 400 pixels per inch.

Combined with its relatively large 3,140mAh battery, that means people can watch Full HD video "for hours on end," LG said.

The processor is the quad-core 1.7GHz Qualcomm Snapdragon 600, and the phone comes with 2GB of RAM. The phone itself measure 150.2x76.1x9.4mm

The camera has a 13-megapixel rear-facing camera with an LED flash and a 2.1MP front-facing camera. A feature called VR Panorama will construct 360-degree panoramas out of an array of horizontal and vertical views around the person holding the phone.

Both of the phones' cameras can be used in a dual-recording mode that "allows users to capture video with both the front and rear cameras simultaneously for a unique picture-in-picture experience," LG said.

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Meet the Meteorite Hunter

Michael Farmer is one of the world's only full-time meteorite hunters. Since the 1990s, the 40-year-old Tucson, Arizona, resident has been scouring the world for pieces of interstellar rock, racing to be the first one on the scene and selling his finds to museums and private collectors. On Friday, as Russians reportedly scrambled to collect fragments from a passing meteorite that injured hundreds, Farmer spoke with National Geographic about his unusual line of work.

Why are so many people in Russia busy gathering up meteorite fragments?

It's a historic event. This will be talked about forever. Everyone wants to have a little piece of it. And scientifically, we want to study it. We want to know what's out there, and we want to know how big it is, and we want to know what damage it can cause. The preliminary data from NASA's Jet Propulsion Laboratory says about 7,000 tons landed.

How many meteorite fragments are known to be on Earth?

There are a couple of hundred thousand known meteorites. Of course, there's millions and millions on the planet; we just have to find them. Most of the Earth is inhospitable—heavy forest, jungle, ocean. Meteorites that fall in the ocean are just gone, disappeared to the bottom.

How many other full-time meteorite hunters are there?

Dedicated, serious meteorite hunters? There are maybe 20 of us. If you add in the part-timers who go somewhere whenever [an impact is] close to them, then you might approach a hundred.

How did you become a meteorite hunter?

Here in Tucson right now we have the world's biggest mineral show going on. I bought a meteorite at this very same show 20 years ago, and I was absolutely obsessed and hooked. Since then I've been around the world more times than I can count—four million miles on American Airlines alone.

How many countries have you been to?

About 70 countries, by my last count. About 50, 59 trips to Africa—a lot of work in Africa. The Sahara and other deserts there make meteorites easier to find than on other terrains, and also keep them well preserved.

What are the challenges you face when you're on a hunt?

Well, you're usually going into a kind of chaotic scene where nobody really knows much. In Africa and other places I go [the locals] don't usually understand what's happening, and most of the time they don't care. They're more concerned with eating that day. But the instant some guy shows up and says, "I'll pay you to find this rock," the whole village empties—and then lots of rocks show up.

Related: Best Meteorites for Tourists

It can be dangerous work. I've been robbed, put into prison. For example, I was in prison two years ago in the Middle East, in Oman—actually sentenced, convicted, and put in prison for three months for "illegal mining activity." Not a very nice time. And the same year, 2011, in the fall I went to Kenya three times, after a major meteorite fell. On the third trip over I had a robbery where they ambushed us and almost murdered me. I was down on my knees, with a bag over my head and a machete on my throat and a gun at my head, being beaten. Luckily they decided to just take everything and leave instead of killing us. It's a dangerous line of work because it involves money, and people want that money.

What's the most valuable meteorite you've found?

Well, I've found three separate moon rocks in the Middle East. [Moon rocks are considered a type of meteorite that came loose from the lunar surface and fell to Earth.] And one of them I sold for $100,000 a week later. It was just a small piece—the size of a walnut. But the best meteorite I found was with my three partners up in Canada. It was actually discovered in 1931, but we went back to the location and discovered 53 kilograms [117 pounds] more. It's an extremely rare type of meteorite called a pallasite, and it's about 4.5 billion years old. We sold it to the Canadian government for just under a million dollars. Now it's in the Royal Ontario Museum, in Toronto, and it's considered a national treasure.

Where else do you sell your wares?

Well, I do shows around the world, in France, Germany, Japan. I go to expos, like this one here in Tucson, which is the biggest mineral show in the world and lasts for three weeks. And museums are always calling me.

Related: Archival Photos of Meteorite Recovery

It's a small market. It's not like I need a shop or anything. People call me or email me or go to my website and check it out. The market these days is so ravenous for anything new that when I get a new meteorite, it's usually sold in hours. I don't even have to work anymore. I just make phone calls to a few people, and it's all gone.

Where do you store your collection?

I have multiple storage sites—never put all your eggs in one basket. And I have lots of bulk material. Sometimes I buy this stuff by the ton, and it goes into storage and I sell it off one piece at a time.

What's the verification process like?

Any meteorite, anything that we want to have an official name, has to go to a laboratory, where it gets sectioned and studied by scientists. For example, I'd guess this meteorite in Russia yesterday will be in a lab in Moscow, being researched within hours.

Related: History's Big Meteorite Crashes

In the collector market, we work collaboratively with the scientists. I supply them with rocks, and they supply me with data, both of which I need to make money. People want to know what something is before they buy it.

Are there legal or ethical implications to meteorite hunting?

There always are. Certain countries have passed laws. But when I was arrested in Oman, they actually had no law—they were just very upset that we were taking lots of meteorites. The only law they could charge us with was illegal mining operations—basically running a company in the country without government licensing. But I won on appeal because we had no mining equipment. We were picking up rocks off the surface of the desert. And a judge said, "If a child could do it, then it's not mining." And I was immediately released and sent home.

But there's always friction between the collecting market and the scientific market. There are scientists out there who believe that no meteorite should be in private hands. Well, I tell you, I've been on hunts all over the world and I've only run into scientists a couple of times. They don't have the time or money to do it. So if it wasn't for us, 99 percent of these meteorites would be lost to science.

What about this meteorite strike—do you think scientists will go to Russia?

I guarantee there'll be scientists from everywhere in the world going to this one.

Are you catching the next flight to Moscow?

Well, of course as a meteorite dealer, I want to own this. I woke up this morning to a hundred e-mails from people begging me to get on a plane and go get it so they can buy a piece.

But I'm probably not going. Getting into Russia can be complicated. I'll just buy some from the Russians when it comes out.

Of course, if this had happened in China or somewhere in Africa, I'd be packing my bags right now and getting on a plane, figuring it all out when I get there.

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Country Singer Mindy McCready Dead at 37

Mindy McCready, the country singer who soared to the top of the charts with her debut album, "Ten Thousand Angels," but struggled with substance abuse, served time in jail and fought a lengthy battle with her mother over custody of her son has died of what appears to be a self-inflicted gunshot wound, police said. She was 37.

Deputies from the Cleburne County Sheriff's Office were dispatched to a report of gun shots fired at McCready's Heber Springs, Ark., home at around 3:30 p.m. today.

There they found McCready on the front porch. She was pronounced dead at the scene from what appeared to be a single self-inflicted gunshot wound, according to a statement from the sheriff's office.

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McCready's boyfriend, David Wilson, died in January of a self-inflicted gunshot wound. McCready was ordered to enter rehab shortly after Wilson's death, and her two children, Zander, 6, and 9-month-old Zayne were taken from her. She was released after one day to undergo outpatient care.

McCready scored a number-one Billboard country hit in 1996 with "Guys Do It All the Time," but in recent years, the country crooner has received more media attention for her troubled personal life than her music.

She has been arrested multiple times on drug charges and probation violations and has been hospitalized for overdoses several times, including in 2010, when she was found unconscious at her mother's home after taking a painkiller and muscle relaxant.

Angela Weiss/Getty Images

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Her mother, Gayle Inge, was appointed to be her son Zander's legal guardian in 2007 after McCready was arrested for violating probation on a drug-related charge. The boy's father is McCready's ex-boyfriend Billy McKnight.

Following a custody hearing in May 2011, McCready released a statement, saying, "We have progressed in a positive manner to reunite me and my son, Zander. I feel very optimistic this will happen in the near future."

But just six months later, in November 2011, was accused of violating a court order for failing to bring Zander back to her mother in Florida after a visit. The boy was placed in foster care while McCready and her mother worked out the custody dispute.

McCready's struggle with substance abuse was broadcast in 2010 on the third season of "Celebrity Rehab with Dr. Drew."

McCready also claimed to have carried on a decade-long affair with baseball star Roger Clemens that began was she was 15 years old and he was 28. Clemens denied that the relationship was sexual in nature.

"You know what, I don't think I'm ever going to be one of those people that has a normal, quiet existence," McCready told ABC Radio in 2010. "I've been chosen for some reason to be bigger and larger than life in every way. Negative and positive."

McCready, who was born and raised in southern Florida, moved to Nashville when she was 18 to start her music career.

Within a few months, she was starting to work with producer David Malloy, who got her tapes to RLG Records. The company signed her to a contract after seeing her in concert, giving her a record deal less than a year after her arrival in Nashville.

Her debut album, "Ten Thousand Angels," went gold within six months of its release in April 1996, and eventually went multi-platinum. Two more followed: "If I Don't Stay the Night," in 1997; and "I'm Not So Tough" in 1999.

Her most recent album, "I'm Still Here," featuring new versions of her early hits "Ten Thousand Angels" and "Guys Do It All the Time," was released in March 2010.

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False memories prime immune system for future attacks

IN A police line-up, a falsely remembered face is a big problem. But for the body's police force – the immune system – false memories could be a crucial weapon.

When a new bacterium or virus invades the body, the immune system mounts an attack by sending in white blood cells called T-cells that are tailored to the molecular structure of that invader. Defeating the infection can take several weeks. However, once victorious, some T-cells stick around, turning into memory cells that remember the invader, reducing the time taken to kill it the next time it turns up.

Conventional thinking has it that memory cells for a particular microbe only form in response to an infection. "The dogma is that you need to be exposed," says Mark Davis of Stanford University in California, but now he and his colleagues have shown that this is not always the case.

The team took 26 samples from the Stanford Blood Center. All 26 people had been screened for diseases and had never been infected with HIV, herpes simplex virus or cytomegalovirus. Despite this, Davis's team found that all the samples contained T-cells tailored to these viruses, and an average of 50 per cent of these cells were memory cells.

The idea that T-cells don't need to be exposed to the pathogen "is paradigm shifting," says Philip Ashton-Rickardt of Imperial College London, who was not involved in the study. "Not only do they have capacity to remember, they seem to have seen a virus when they haven't."

So how are these false memories created? To a T-cell, each virus is "just a collection of peptides", says Davis. And so different microbes could have structures that are similar enough to confuse the T-cells.

To test this idea, the researchers vaccinated two people with an H1N1 strain of influenza and found that this also stimulated the T-cells to react to two bacteria with a similar peptide structure. Exposing the samples from the blood bank to peptide sequences from certain gut and soil bacteria and a species of ocean algae resulted in an immune response to HIV (Immunology, doi.org/kgg).

The finding could explain why vaccinating children against measles seems to improve mortality rates from other diseases. It also raises the possibility of creating a database of cross-reactive microbes to find new vaccination strategies. "We need to start exploring case by case," says Davis.

"You could find innocuous pathogens that are good at vaccinating against nasty ones," says Ashton-Rickardt. The idea of cross-reactivity is as old as immunology, he says. But he is excited about the potential for finding unexpected correlations. "Who could have predicted that HIV was related to an ocean algae?" he says. "No one's going to make that up!"

This article appeared in print under the headline "False memories prime our defences"

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