Saturday, February 10, 2007

Gift giving

Your Money

Figuring Out Gift Giving in the Age of $2,000-a-Pound Chocolate

Brian Harkin for The New York Times

Noka chocolates run $39 a box. A box contains 0.9 ounces of chocolate.

Published: February 10, 2007

If you are still seeking the perfect gift for Valentine’s Day, have you considered a box of Noka chocolates?

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Brian Harkin for The New York Times

Noah Houghton and his wife, Katrina Merrem, started Noka in a one-bedroom apartment in Plano, Tex.

Brian Harkin for The New York Times

Noka chocolates, like these truffles, can be more expensive than caviar.

Both you and the recipient may be in for a surprise. A 12-piece box costs $39 before tax and shipping. And for that you will get 0.9 ounce of chocolate. Not 0.9 ounce a piece, but 0.9 ounce in the entire black and silver box.

Do the math and that comes to $693 a pound. Buy just four pieces in the Signature stainless steel box and you are paying more than $2,000 a pound, making the Noka chocolate more expensive than delicacies like caviar, saffron or black truffles.

How can anyone justify paying that much for a gift? Economists have struggled over that question for years, suggesting that anything other than a cash gift is inefficient.

But the high-end sector in retail is red-hot, whether it’s superpremium vodka, tequila, blue jeans or chocolate. The luxury goods market, which exists by convincing people they are getting higher quality or higher status by paying a premium, was stronger in the last holiday shopping season than that for more prosaic products.

And while cash cards have proved popular during Christmas, a gift card, even one festooned with red hearts, does not quite seem appropriate for this romantic occasion.

The question of how much of a premium is reasonable in gift-giving recently nagged at a blogger who writes about local food at the DallasFood.org site. In a 10-part series that can only be called investigative blogging, he tried to justify Noka’s price. He analyzed the marketing of the chocolate with lawyerlike logic and came to the conclusion there was little special about it. He noted that the company, just as other chocolatiers do, buys bulk chocolate, called couverture, from chocolate makers, who process the cacao. But while truffle makers like Michael Recchiuti or Michel Cluizel charge a mere $80 or $85 a pound for their treats, the markup for Noka could be as much as 50 times the wholesale cost of the couverture, the blogger estimated.

Through taste-testing and some deduction, he guessed that the source of the Noka chocolate is Bonnat, a French chocolate maker. A consumer can also find a Bonnat chocolate bar in stores for about $7.50, or $34 a pound. (Noka is hardly the most expensive chocolate. A Forbes.com survey gave that honor to a shop in Norwalk, Conn., Chocopologie by Knipschildt Chocolatier, for its slightly more pricey $2,600-a-pound bonbons that have unusual ingredients like pink peppercorns or crystallized violets.)

Heavily trafficked sites like Boing Boing.net, Chowhound.com and Slashdot org publicized the exposé on the little-known DallasFood blog. The report has had 750,000 page views since the story went up in December and has been passed from chocophile to chocophile. A clerk at Fog City News, a San Francisco magazine and chocolate store, laughed when asked if she carried Noka chocolates. “Haven’t you read the posting about that on Dallas Food.org?” she asked.

Katrina Merrem and her husband, Noah Houghton, who started Noka three years ago in their Dallas-area apartment, took umbrage at the attack. They will not reveal the source of their chocolate, though most chocolatiers brag about that. Mr. Houghton said, “The couverture is made specially for us.”

The couple, both former accountants, do not add flavorings to their chocolates, which are identified by the country of origin and which, they say, each come from a single estate. “Our focus is on the pure natural flavor of the cacao,” Mr. Houghton said. In other words, it is pretty much the chocolate they get from the wholesaler, just molded into little pieces.

He said the product’s value was also in the “total gifting experience” with brushed stainless steel boxes available at Neiman Marcus stores and a distinctive logo that belies the company’s origins in a one-bedroom apartment in Plano, Tex.

Like the premium ice cream Häagen-Dazs (created in the Bronx), which sounded foreign and expensive, the Noka logo has exotic typography: capital N, small o (with a macron over it), capital K, capital A in a meshing of the owners’ first names. “On the gift end, no one was really doing justice to the gifting experience,” Mr. Houghton said.

To succeed in the luxury good market, he said, “the value people are getting must be there.”

DallasFood.org saw it differently. “If you or your gift recipient are rich, stupid and vain, Noka is probably the way to go,” it said.

But not so fast. There might be some rationale here for springing for at least something more than the Whitman sampler at Walgreens. Most economists would say that giving gifts, other than cash, makes no economic sense. The recipient would be better off spending the money on something he or she values.

Joel Waldfogel, a professor at the Wharton School of the University of Pennsylvania, gained considerable attention from his 1993 paper in The American Economic Review titled “The Deadweight Loss of Christmas.” He argued that people valued a gift as much as a third less than if they had been given the same amount of cash to spend on themselves.

He shed some light on why people give extravagant gifts. “It’s like food stamps,” Mr. Waldfogel said, because the government antipoverty program is intended to get people to buy food, which they might choose not to do if given cash.

A luxury gift is similar, he said. “Suppose it is something they wouldn’t buy for themselves,” Mr. Waldfogel said. “You are forcing them to consume something luxurious. You are saying: ‘I don’t care what you want. This is what I want you to have.’ ”

There could, however, be some value in giving an expensive gift. Bradley J. Ruffle, an economics professor at Ben-Gurion University in Israel, said gifts were a way to establish a relationship. The economic term is “signaling,” jargon for showing a person that you care at a very high cost to yourself. “Giving a diamond ring when you are getting engaged is a similarly extravagant and wasteful gift,” he said. But it signals serious intent.

In some American Indian tribes, a ceremony to initiate relations with another tribe included the burning of the tribe’s most valuable possession, Mr. Ruffle said. “Why? It’s a signal that you’d go to the extreme cost to maintain the relationship.”

In short, what an expensive gift really shows is that the giver and recipient do not know each other all that well. The gift is an attempt to convey the information: “Hey, I’m O.K.” It is a time-saving way to establish a relationship without going through the drawn-out process of a series of thoughtful gestures.

There may be other benefits, said Mr. Ruffle, who studies economic puzzlers like gift giving and religious belief. A gift carries with it emotional costs and benefits. The recipient has an expectation of what the giver will deliver. If the gift fails to exceed expectations, then the recipient is at an emotional loss, as the giver could be. And there could be other consequences like a certain chill in the air. But if the gift is well received, the giver can take pride in that and win an emotional benefit.

Gifts can also save the recipient time, another benefit. If the recipient cannot get to a place selling a desired product or has not done the necessary research to know what product to buy, a gift saves that person time. Mr. Ruffle, for instance, buys unique dolls for his niece back in Canada during travels around the world and would consider buying a high-tech device for his technophobe mother that would make her life easier.

“It is still wasteful,” Mr. Ruffle said. But it might make you feel less guilty about splurging for the roses, a bottle of port or a dinner out.

FOLLOW-UP: Tax season is a good time to buy a shredder because the office supply retailers discount them to lure customers into their stores.

You do not need a model that chops paper into the tiniest of confetti. A machine that simply shreds and crosscuts will do the trick. It is better to look for a machine that shreds multiple sheets of paper and is not too top-heavy.



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Thursday, February 08, 2007

Toys that fly

If Leonardo Had Made Toys

Published: February 8, 2007

LEONARDO DA VINCI’S 15th-century vision of mechanical flight apparently never included fixed wings assisted by propellers or jet engines. His chief inspiration was birds, reflected in drawings of a flying machine fashioned to stay aloft by flapping its wings.

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Tony Cenicola/The New York Times

High-tech gizmos strive to keep the children off the couch. The Picco Z, from HobbyTron.com.

Tony Cenicola/The New York Times

The FlyTech Dragonfly, from WowWee.

Tony Cenicola/The New York Times

The Spy Video Car, from Wild Planet Entertainment, sells for $140.

Tony Cenicola/The New York Times

The XPV, or Xtreme Performance Vehicle, from Jakks Pacific, sells for $60.

More than 500 years later, WowWee, a robotics and entertainment products company, shares that vision. Next month, it plans to release a mass-produced, functional ornithopter, a device that flies in birdlike fashion — in this case, a radio-controlled toy that mechanically flaps its Mylar wings.

The inspiration — besides Leonardo’s work — is an insect, said Sean Frawley, the 22-year-old inventor of the toy, the FlyTech Dragonfly.

“People have been experimenting all around the world with these kinds of things,” Mr. Frawley, an aerospace engineering graduate of Embry-Riddle Aeronautical University in Daytona Beach, Fla., and project manager for WowWee, said in a telephone interview from the company’s office in Hong Kong.

During demonstration flights of the Dragonfly last month at the Consumer Electronics Show, the annual technology showcase in Las Vegas, the fluttering, footlong bug was an enormous hit. Throngs of onlookers clamored for a chance to buy the $50 toy on the spot. At the time, none were for sale.

The robotic Dragonfly will take flight again at the American International Toy Fair, the largest toy trade show in the Western Hemisphere, which begins Sunday in New York. But it will hardly be alone there in its use of technologies that are giving a new generation of toys extraordinary capabilities to fly, float, walk and roll — almost always inexpensively — in ways unimaginable just a few years ago.

“Is there a revolution?” asked Gene Khasminsky, the design director for Interactive Toy Concepts, the Canadian maker of the Micro Mosquito, a palm-size, radio-controlled helicopter that was in demand among holiday shoppers at about $70.

“I think, right now, that there is a push back from our industry to get kids off the couch where they’re playing video games,” Mr. Khasminsky said in a telephone interview from his office in Toronto. “We’re moving into an age where toys are becoming more high-tech to stay competitive with gaming.”

He suggested that navigating well-designed vehicles in the physical world — like the company’s inventory of remote-controlled helicopters, planes and helium blimps — is vastly more compelling than steering a virtual vehicle in a computer-generated universe.

Executives at Mattel, which owns Tyco, are placing their bets on a new kind of radio-controlled three-wheeled vehicle it is calling the Tyco R/C Terrainiac. Scheduled to go on sale in the summer for about $80, the Terrainiac is a futuristic-looking vehicle powered by a single rear wheel that is a complex treaded ball, referred to by its makers as a “sphere drive.”

The body of the vehicle has been engineered with a controllable joint that allows the Terrainiac to pivot or twist like a human torso. The results are radical turns at high speeds as its high-torque electric motor drives the vehicle over practically any sort of terrain; thus its name.

But George Benz, director of marketing for Tyco Radio Control, said the toy will not be limited to solid surfaces. The sphere drive is hollow, helping to provide buoyancy as well as locomotion when the Terrainiac takes to the water.

“The tricky part of development is making these toys have tremendous performance on land and really deliver when it gets wet,” he said.

WowWee, whose previous creations include the robotic toy Robosapien, is also working on a radio-controlled vehicle for release this year that walks on four spidery, multijointed legs. It is called Roboquad and is expected to cost $100.

And Wild Planet Entertainment, which makes a line of “spy toys for any mission” under the rubric Spy Gear, had added a surveillance wrinkle to a rather conventional remote-controlled vehicle. Its Spy Video Car, which sells for $140, has a front-mounted camera that wirelessly transmits a live video image that can be viewed in an eyepiece.

“A separate transmitter in the car transmits the video over a 2.4 megahertz frequency like a wireless phone uses,” said Shannon Bruzelius, the product integrity engineer at Wild Planet, which operates research and development centers in San Francisco and Hong Kong.

He said the company plans to add a $15 Mobile Spy Ear vehicle (not remotely controlled) equipped with a microphone and an amplifier that can wirelessly beam sounds up to 75 feet to an earbud the user wears.

But of all the innovations brimming in toy vehicles these days, the most startling have been reserved for those that achieve flight.

Late last year, Jakks Pacific, a toymaker in Malibu, Calif., released a lightweight radio-controlled flying wing called the XPV, or Xtreme Performance Vehicle, which sells for $60. Once its onboard battery is fully charged, the twin-propeller craft can soar as high as a 20-story building.

“As technology progresses, the performance of the electronics improves so much that, in a sense, you get more horsepower,” Michael Bernstein, vice president for boys marketing at Jakks Pacific, said in a telephone interview this week.

That “horsepower,” Mr. Bernstein said, is getting cheaper, freeing designers to reach higher and enabling toymakers to deliver more affordable mass-market products — more RadioShack than Sharper Image. The company plans to unveil more high-performance vehicles under the XPV banner at the toy fair.

Radio-controlled flight was long the expensive purview of hobbyists and model-making enthusiasts, Mr. Khasminsky of Interactive Toy Concepts said. But microelectric motors have become plentiful and relatively inexpensive.

Economies of scale are making once-exotic materials like sturdy and lightweight carbon-fiber cheaper, and newer materials, like EPP foam (expanded polypropylene, which looks and feels like a more resilient Styrofoam) are available, helping achieve sustained flight.

HobbyTron.com, based in Orem, Utah, makes a 6-inch-long, $40 infrared-controlled helicopter, the Picco Z, in which its entire body is made from EPP foam.

At the same time, microprocessors continue to integrate more functions onto single chips, increasing their overall computing power while the chips become lighter and cheaper, toymakers say.

Caleb Chung, the inventor of the 1990s toy hit Furby and a co-founder of Ugobe, a builder of lifelike robotic creatures, said: “The price of processing power has dropped to the floor. I can buy the equivalent of an Apple II processor for a dime.”

At such prices, Mr. Chung said he can use cheaper motors in his Pleo baby dinosaur because he is confident that the $300 robotic reptile’s processors will help regulate those motors to ensure smooth, organic and even “emotive” movements when it is released this summer.

But one of the greatest boons to flight has been new battery technology, said Mr. Frawley, the Dragonfly creator. He said lithium-polymer batteries, the same malleable lightweight rechargeable power source in Apple’s iPod Nano, had freed flying toys from heavy, bulky batteries and their metal cases.

Mr. Frawley said the lithium-polymer battery in his Dragonfly weighs no more than a penny and can deliver up to 10 minutes of flight after about a 20-minute charge.

Yet he noted that the Dragonfly’s predecessor, a kit he designed and sold as a teenager along with a friend, was more energy-efficient.

It was powered by rubber bands.



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Tuesday, February 06, 2007

Brain's emotional center?

A Small Part of the Brain, and Its Profound Effects

Published: February 6, 2007

The recent news about smoking was sensational: some people with damage to a prune-size slab of brain tissue called the insula were able to give up cigarettes instantly.

Suppose scientists could figure out how to tweak the insula without damaging it. They might be able to create that famed and elusive free lunch — an effortless way to kick the cigarette habit.

That dream, which may not be too far off, puts the insula in the spotlight. What is the insula and how could it possibly exert such profound effects on human behavior?

According to neuroscientists who study it, the insula is a long-neglected brain region that has emerged as crucial to understanding what it feels like to be human.

They say it is the wellspring of social emotions, things like lust and disgust, pride and humiliation, guilt and atonement. It helps give rise to moral intuition, empathy and the capacity to respond emotionally to music.

Its anatomy and evolution shed light on the profound differences between humans and other animals.

The insula also reads body states like hunger and craving and helps push people into reaching for the next sandwich, cigarette or line of cocaine. So insula research offers new ways to think about treating drug addiction, alcoholism, anxiety and eating disorders.

Of course, so much about the brain remains to be discovered that the insula’s role may be a minor character in the play of the human mind. It is just now coming on stage.

The activity of the insula in so many areas is something of a puzzle. “People have had a hard time conceptualizing what the insula does,” said Dr. Martin Paulus, a psychiatrist at the University of California, San Diego.

If it does everything, what exactly is it that it does?

For example, the insula “lights up” in brain scans when people crave drugs, feel pain, anticipate pain, empathize with others, listen to jokes, see disgust on someone’s face, are shunned in a social settings, listen to music, decide not to buy an item, see someone cheat and decide to punish them, and determine degrees of preference while eating chocolate.

Damage to the insula can lead to apathy, loss of libido and an inability to tell fresh food from rotten.

The bottom line, according to Dr. Paulus and others, is that mind and body are integrated in the insula. It provides unprecedented insight into the anatomy of human emotions.

Of course, like every important brain structure, the insula — there are actually two, one on each side of the brain — does not act alone. It is part of multiple circuits.

The insula itself is a sort of receiving zone that reads the physiological state of the entire body and then generates subjective feelings that can bring about actions, like eating, that keep the body in a state of internal balance. Information from the insula is relayed to other brain structures that appear to be involved in decision making, especially the anterior cingulate and prefrontal cortices.

The insula was long ignored for two reasons, researchers said. First, because it is folded and tucked deep within the brain, scientists could not probe it with shallow electrodes. It took the invention of brain imaging techniques, such as functional magnetic resonance imaging, or fMRI, to watch it in action.

Second, the insula was “assigned to the brain’s netherworld,” said John Allman, a neuroscientist at the California Institute of Technology. It was mistakenly defined as a primitive part of the brain involved only in functions like eating and sex. Ambitious scientists studied higher, more rational parts of the brain, he said.

The insula emerged from darkness a decade ago when Antonio Damasio, a neuroscientist now at the University of Southern California, developed the so-called somatic marker hypothesis, the idea that rational thinking cannot be separated from feelings and emotions. The insula, he said, plays a starring role.

Another neuroscientist, Arthur D. Craig at the Barrow Neurological Institute in Phoenix, went on to describe exactly the circuitry that connects the body to the insula.

According to Dr. Craig, the insula receives information from receptors in the skin and internal organs. Such receptors are nerve cells that specialize in different senses. Thus there are receptors that detect heat, cold, itch, pain, taste, hunger, thirst, muscle ache, visceral sensations and so-called air hunger, the need to breathe. The sense of touch and the sense of the body’s position in space are routed to different brain regions, he said.

All mammals have insulas that read their body condition, Dr. Craig said. Information about the status of the body’s tissues and organs is carried from the receptors along distinct spinal pathways, into the brain stem and up to the posterior insula in the higher brain or cortex.

As such, all mammals have emotions, defined as sensations that provoke motivations. If an animal is hot, it seeks shade. If hungry, it looks for food. If hurt, it licks the wound.

But animals are not thought to have subjective feelings in the way that humans do, Dr. Craig said. Humans, and to a lesser degree the great apes, have evolved two innovations to their insulas that take this system of reading body states to a new level.

One involves circuitry, the other a brand new type of brain cell.

In humans, information about the body’s state takes a slightly different route inside the brain, picking up even more signals from the gut, the heart, the lungs and other internal organs. Then the human brain takes an extra step, Dr. Craig said. The information on bodily sensations is further routed to the front part of the insula, especially on the right side, which has undergone a huge expansion in humans and apes.

It is in the frontal insula, Dr. Craig said, that simple body states or sensations are recast as social emotions. A bad taste or smell is sensed in the frontal insula as disgust. A sensual touch from a loved one is transformed into delight.

The frontal insula is where people sense love and hate, gratitude and resentment, self-confidence and embarrassment, trust and distrust, empathy and contempt, approval and disdain, pride and humiliation, truthfulness and deception, atonement and guilt.

People who are better at reading these sensations — a quickened heart beat, a flushed face, slow breathing — score higher on psychological tests of empathy, researchers have found. The second major modification to the insula is a type of cell found in only humans, great apes, whales and possibly elephants, Dr. Allman said. Humans have by far the greatest number of these cells, which are called VENs, short for Von Economo neurons, named for the scientist who first described them in 1925. VENs are large cigar-shaped cells tapered at each end, and they are found exclusively in the frontal insula and anterior cingulate cortex.

Exactly what VENs are doing within this critical circuit is not yet known, Dr. Allman said. But they are in the catbird seat for turning feelings and emotions into actions and intentions.

The human insula, with its souped-up anatomy, is also important for processing events that have yet to happen, Dr. Paulus said. “When you decide to go outside on a cold day, your body gets ready before you hit the cold air,” he said. “It starts pumping blood to where you need it and adjusts your metabolism. Your insula tells you what it will feel like before you step outside.”

The same goes for drug addicts. When an addict is confronted with sights, sounds, smells, situations or other stimuli associated with drug use, the insula is activated before using the drug.

“If you give cocaine to an addict, you are affecting their brain’s reward system, but this is not what drives the person to keep using cocaine,” Dr. Paulus said. The craving is what gets people to use.

For example, smokers enjoy whole-body effects, said Nasir Naqvi, a student at the University of Iowa Medical Scientist Training Program, who was the lead author of the recent article on smoking. It is not just nicotine binding to parts of the brain, he said, but sensations — heart rate, blood pressure, a tickle in the lungs, a taste in the mouth, the position of the hands, all the rituals.

The insula’s importance makes it an ideal target for many kinds of treatment, Dr. Paulus said, including drugs and sophisticated biofeedback. But methods to quell insular activity must be approached carefully, he said. People might lose the craving to smoke, drink alcohol or take other drugs, but they could simultaneously lose interest in sex, food and work.

As clinicians explore the possibilities, Dr. Craig is thinking about the insula in grander terms.

For example, lesions in the frontal insula can wipe out the ability to appreciate the emotional content of music. It may also be involved in the human sense of the progress of time, since it can create an anticipatory signal of how people may feel as opposed to how they feel now. Intensely emotional moments can affect our sense of time. It may stand still, and that may be happening in the insula, a crossroads of time and desire.



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Red

Basics

How Do We See Red? Count the Ways

Serge Bloch

Published: February 6, 2007

Valentine’s Day is nearly upon us, that sweet Hallmark holiday when you can have anything your heart desires, so long as it’s red. Red roses, red nighties, red shoes and red socks. Red Oreo filling, red bagels, red lox.

As it happens, red is an exquisite ambassador for love, and in more ways than people may realize. Not only is red the color of the blood that flushes the face and swells the pelvis and that one swears one would spill to save the beloved’s prized hide. It is also a fine metaphoric mate for the complexity and contrariness of love. In red we see shades of life, death, fury, shame, courage, anguish, pride and the occasional overuse of exfoliants designed to combat signs of aging. Red is bright and bold and has a big lipsticked mouth, through which it happily speaks out of all sides at once. Yoo-hoo! yodels red, come close, have a look. Stop right there, red amends, one false move and you’re dead.

Such visual semiotics are not limited to the human race. Red is the premier signaling color in the natural world, variously showcasing a fruitful bounty, warning of a fatal poison or boasting of a sturdy constitution and the genes to match. Red, in other words, is the poster child for the poster, for colors that have something important to say. “Our visual system was shaped by colors already in use among many plants and animals, and red in particular stands out against the green backdrop of nature,” said Dr. Nicholas Humphrey, a philosopher at the London School of Economics and the author of “Seeing Red: A Study in Consciousness.” “If you want to make a point, you make it in red.”

What is it, then, to see red, to see any palette at all? Of our famed rods and cones, the two classes of light-sensing cells with which the retina at the back of each eye is supplied, the rods do the basics of vision, of light versus shadow, tracking every passing photon and allowing us to see by even a star’s feeble flicker, though only in gunmetal shades of black, white and grim. It is up to our cone cells to capture color, and they don’t kick in until the dawn’s earylish light or its Edisonian equivalent, which is why we have almost no color vision at night.

Cones manage their magic in computational teams of three types, each tuned to a slightly different slice of the electromagnetic spectrum, the sweeping sum of lightwaves that streams from the sun. As full-spectrum sunlight falls on, say, a ripe apple, the physical and chemical properties of the fruit’s skin allow it to absorb much of the light, save for relatively long, reddish lightwaves, which bounce off the surface and into our greedy eyes. On hitting the retina, those red wavelengths stimulate with greatest fervor the cone cells set to receive them, a sensation that the brain interprets as “healthy, low-hanging snack item ahead.”

In fact, human eyes, like those of other great apes, seem to be all-around fabulous fruit-finding devices, for they are more richly endowed with the two cone types set to red and yellow wavelengths than with those sensitive to short, blue-tinged light. That cone apportionment allows us to discriminate among subtle differences in fruit ruddiness and hence readiness, and may also explain why I have at least 40 lipsticks that I never wear compared with only three blue eye shadows.

Whatever the primary spur to the evolution of our rose-colored retinas, we, like most other animals with multichromatic vision, have learned to treat red with respect. “In the evolution of languages,” Dr. Humphrey writes, “red is without exception the first color word to enter the vocabulary,” and in some languages it’s the only color word apart from black and white. It’s also the first color that most children learn to name, and that most adults will cite when asked to think of a color, any color.

Red savors the spice of victory. Analyzing data from Olympic combat sports like boxing and tae kwon do, in which competitors are randomly assigned to wear red shorts or blue, Dr. Russell Hill and his colleagues at the University of Durham in Britain found that the red-shorted won their matches significantly more often than would be expected by chance alone. What the researchers don’t yet know is whether the reds somehow get an subconscious boost from their garb, or their blue opponents are felled by the view. After all, said Dr. Geoffrey Hill, a biology professor at Auburn University in Alabama and no relation to Russell Hill, “I’ve seen some of my biggest, toughest students, these tough, athletic guys, faint right to the floor at the sight of one drop of bird’s blood.”

Red refuses to be penned down or pigeonholed. It has long been the color of revolution, of overthrowing the established order. “Left-wing parties in Europe have all been red,” Dr. Humphrey said, “while the conservatives, in Britain and elsewhere, go for blue.” Yet in the United States, the color scheme lately has been flipped, and the red states are said to be the guardians of traditional values, of mom and pop, of guns and red meat.

Context, too, changes red’s meaning. A female bird may be attracted to the bright scarlet sheen of a male’s feathers or of a baby bird’s begging mouth, but will assiduously avoid eating red ladybugs that she knows are packed with poisons.

Given red’s pushy reputation, design experts long thought people felt uncomfortable and worked poorly when confined to red rooms. But when Dr. Nancy Kwallek, a professor of interior design at the University of Texas at Austin, recently compared the performance of clerical workers randomly assigned for a week to rooms with red, blue-green or white color schemes, she found that red’s story, like the devil, is in the details. Workers who were identified as poor screeners, who have trouble blocking out noise and other distractions during the workday, did indeed prove less productive and more error prone in the red rooms than did their similarly thin-skinned colleagues in the turquoise rooms. For those employees who were rated as good screeners, however, able to focus on their job regardless of any ruckus around them, the results were flipped. Screeners were more productive in the red room than the blue. “The color red stimulated them,” she said, “and they thrived under its effects.”

And the subjects assigned to the plain-vanilla settings, of a style familiar to the vast majority of the corporate labor force? Deprived of any color, any splash of Matisse, they were disgruntled and brokenhearted and did the poorest of all.



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Sunday, February 04, 2007

New Internet Service

Digital Domain

Wireless Internet for All, Without the Towers

Illustration by James Yang

Published: February 4, 2007

THESE still are early days for the Internet, globally speaking. One billion people online; five billion to go.

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Multimedia

Podcast: Weekend Business

Reporters and editors from The Times's Sunday Business section offer perspective on the week in business and beyond.

The next billion to be connected are living in homes that are physically close to an Internet gateway. They await a solution to the famous “last mile” problem: extending affordable broadband service to each person’s doorstep.

Here in the United States, 27 percent of the population lacks access to the Internet, according to a study completed last year by the Pew Internet and American Life Project. Among those who do have access, about 30 percent still rely on slow dial-up connections. The last mile for households with no or slow connections may be provided by radio signals sent out by transmitters perched atop street lights, as hundreds of cities have rolled out municipal Wi-Fi networks, or are in the process of doing so.

The impulse behind these projects is noble. It’s a shame, however, that lots of street lamps and lots of dollars — a typical deployment in an urban setting will run $75,000 to $125,000 a square mile, just to install the equipment — do not really solve the last-mile problem.

If you’re sitting with your laptop at an outside cafe, you’ll be happy with the service. But if you happen to be at home, you realize that service to the doorstep is not enough: you still need to buy equipment to bolster the signal and solve the “last mile plus 10 more yards” problem — that is, getting coverage indoors.

Wi-Fi signals do not bend, and you usually can’t get much of a useful bounce from them, either. Because Wi-Fi uses unlicensed bands of the radio spectrum, by law it must rely on low-power transmitters, which reduce its ability to penetrate walls. Travel-round-the-world shortwave, this ain’t.

Trying to cover a broad area with Wi-Fi radio transmitters set atop street lights brings to mind a fad of the 1880s: attempts to light an entire town with a handful of arc lights on high towers. But overeager city boosters around the country soon discovered that shadows obscured large portions of their cities, and the lighting was not as useful as had been expected. Municipal Wi-Fi on streetlamps, another experiment with top-down delivery, may run a similarly short-lived — and needlessly expensive — course.

WiMax, which will be a high-power version of the tower approach, comes in two flavors: mobile, which has not yet been certified, and fixed, which is theoretically well suited for residential deployment. Unfortunately, it’s pricey. Peter Bell, a research analyst at TeleGeography Research in Washington, said fixed WiMax would not be able to compete against cable and DSL service: “It makes more economic sense in semirural areas that have no broadband coverage.”

An intriguingly inexpensive alternative has appeared: a Wi-Fi network that is not top-down but rather ground-level, peer-to-peer. It relies not on $3,500 radio transmitters perched on street lamps by professional installers but instead on $50 boxes that serve, depending upon population density, more than one household and can be installed by anyone with the ease of plugging in a toaster.

Meraki Networks, a 15-employee start-up in Mountain View, Calif., has been field-testing Wi-Fi boxes that offer the prospect of providing an extremely inexpensive solution to the “last 10 yards” problem. It does so with a radical inversion: rather than starting from outside the house and trying to send signals in, Meraki starts from the inside and sends signals out, to the neighbors.

Some of those neighbors will also have Meraki boxes that serve as repeaters, relaying the signal still farther to more neighbors. The company equips its boxes with software that maintains a “mesh network,” which dynamically reroutes signals as boxes are added or unplugged, and as environmental conditions that affect network performance fluctuate moment to moment.

At this time last year, two of Meraki’s co-founders — Sanjit Biswas and John Bicket — were still Ph.D. students at M.I.T., pursuing academic research on wireless mesh networks in the course of building Roofnet, an experimental network that covered about one-third of Cambridge, Mass., and offered residents free service.

Last year, Google invited Mr. Biswas to give a presentation about his experience providing wireless Internet service to low-income communities. At the time, Google was testing its first municipal Wi-Fi network in its hometown, Mountain View, Calif., using transmitters attached to street lamps.

After Mr. Biswas’s talk, a Google engineer told him that people using Google’s network said they could get online at home only by holding their laptops against a window. Mr. Biswas said he was not surprised. Using municipal Wi-Fi for residential coverage, he said, was “the equivalent of expecting street lamps to light everyone’s homes.”

Mr. Biswas and Mr. Bicket realized that their mesh-network gear designed for residential use could avoid that problem, and hasten the extension of Internet access worldwide. They founded Meraki, took a leave of absence from M.I.T. and, along with a third co-founder, Hans Robertson, moved to Silicon Valley. In short order, Google and then Sequoia Capital, one of Google’s original venture capital backers, invested in Meraki.

Moore’s Law, with its regular doubling of transistors on a single silicon chip, makes possible the miracle of a Meraki “mini,” as the company calls its basic product for the home. It contains a Wi-Fi router-on-a-chip, combined with the same microprocessor and same memory that formed the heart of a Silicon Graphics workstation 10 years ago. These components are now cheap enough today to be included in a box that sells for $49.

The fact that 200 million Wi-Fi chips will be manufactured this year leads to economies of scale that will drive down the price of extremely intelligent network equipment. Meraki’s products are still being tested, but word-of-mouth has attracted 15,000 users in 25 countries.

One early adopter was Michael Burmeister-Brown, a director of NetEquality, a nonprofit in Portland, Ore., that provides free Internet access to low-income neighborhoods. He had not been impressed by Portland’s municipal Wi-Fi service. Because the Wi-Fi transmitter has to be both close and within unobstructed view, the limitations brought to Mr. Burmeister-Brown’s mind the sign on the back of 18-wheel trucks: “If you can’t see my mirror, I can’t see you.”

In Portland, the access points were installed only at every other intersection in residential areas — creating an “I can’t see you” problem. MetroFi, the service provider, advises residents who are not close to a transmitter to buy additional equipment to pull in the signal, with a starting price of $119 — and that is without the “professional installation” option.

For NetEquality, Mr. Burmeister-Brown decided to try out the Meraki equipment in several neighborhoods. In the largest, consisting of about 400 apartments, five DSL lines were used to feed 100 Meraki boxes, which cover the complex with a ratio of one box to every four apartments. Each box both receives the signal and passes it along, albeit at diminished strength. For an initial investment of about $5,000, or $13 a household, the complex can offer Internet access whose operating costs work out to about $1 a household a month.

The bandwidth can match DSL service, but here it is throttled down a bit to deter bandwidth-hogging downloads. Nonetheless, Mr. Burmeister-Brown says everyone is able to enjoy Web browsing with what he describes as “really snappy response.” The sharing of signals among neighbors does not compromise privacy if standard Wi-Fi security protocols are switched on.

Meraki’s products are not yet for sale, and its networks have not been tested with extensive deployment across a large city. Nonetheless, the intrinsic advantages of its grass-roots approach, with next-to-nothing expenditures for both equipment and operations, are impossible to ignore.

MR. BISWAS says there are about 800 million personal computers in the world, but only 280 million are connected. The rest are “stuck in the 1980s” — close to being connected, but not quite.

Meraki does not wish to go into the Internet service provider business itself, but it aspires to equip any interested nontechnical person to become a “micro” service provider for his or her local community. If the provider wishes to use advertising to cover costs rather than charge an access fee, little would be needed in order to cover the minimal outlays for equipment and operations.

This low-cost network model offers the prospect of broadband service reaching inside many more households. One billion and one. One billion and two. One billion and three ... .

Randall Stross is an author based in Silicon Valley and a professor of business at San Jose State University. E-mail: stross@nytimes.com.



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Tuesday, January 30, 2007

The Pill & Weight Gain

Really?

The Claim: The Pill Can Make You Put On Weight

Published: January 30, 2007

THE FACTS Quick weight gain may be among the birth-control pill’s most dreaded side effects. But how much does it really add to your waistline?

Last year, a group of researchers carried out what may be the most extensive study on the subject to date. Their conclusion: In most women, neither the pill nor the patch seems to add any pounds at all.

Of 44 previous studies that the researchers combined and analyzed, 3 found no difference between women who took hormonal contraceptives and those who took a placebo. The other studies looked at women taking different types and doses of hormonal contraception, and came to the same overall conclusion.

The claim may have had some truth many years ago, when the pill contained high levels of estrogen, which can cause water retention and increased appetite. Nowadays, most versions of the pill have only half the amount found in early versions.

Some studies have shown that while the pill may add a couple of pounds at first from water retention, the added weight disappears as the body adjusts to the hormones.

Another factor has nothing to do with the pill: most women start birth control as teenagers and continue it through their 20s, a period when women naturally tend to gain weight.

THE BOTTOM LINE The link between the pill and weight gain is exaggerated at best.

scitimes@nytimes.com



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