Saturday, March 31, 2007

You Are Also What You Drink - New York Times

You Are Also What You Drink - New York Times

March 27, 2007
Personal Health

Correction Appended

What worries you most? Decaying teeth, thinning bones, heart disease, stroke, diabetes, dementia, cancer, obesity? Whatever tops your list, you may be surprised to know that all of these health problems are linked to the beverages you drink — or don’t drink.

Last year, with the support of the Unilever Health Institute in the Netherlands (Unilever owns Lipton Tea), a panel of experts on nutrition and health published a “Beverage Guidance System” in hopes of getting people to stop drinking their calories when those calories contribute little or nothing to their health and may actually detract from it.

The panel, led by Barry M. Popkin, a nutrition professor at the University of North Carolina, was distressed by the burgeoning waistlines of Americans and the contribution that popular beverages make to weight problems. But the experts also reviewed 146 published reports to find the best evidence for the effects of various beverages on nearly all of the above health problems. I looked into a few others, and what follows is a summary of what we all found.

At the head of the list of preferred drinks is — you guessed it — water. No calories, no hazards, only benefits. But the panel expressed concern about bottled water fortified with nutrients, saying that consumers may think they don’t need to eat certain nutritious foods, which contain substances like fiber and phytochemicals lacking in these waters. (You can just imagine what the panel would have to say about vitamin-fortified sodas, which Coca-Cola and Pepsi plan to introduce in the coming months.)

Sweet Liquid Calories

About 21 percent of calories consumed by Americans over the age of 2 come from beverages, predominantly soft drinks and fruit drinks with added sugars, the panel said in its report. There has been a huge increase in sugar-sweetened drinks in recent decades, primarily at the expense of milk, which has clear nutritional benefits. The calories from these sugary drinks account for half the rise in caloric intake by Americans since the late 1970s.

Not only has the number of servings of these drinks risen, but serving size has ballooned, as well, with some retail outlets offering 32 ounces and free refills.

Add the current passion for smoothies and sweetened coffee drinks (there are 240 calories in a 16-ounce Starbucks Caffe Mocha without the whipped cream), and you can see why people are drinking themselves into XXXL sizes.

But calories from sweet drinks are not the only problem. The other matter cited by the panel, in its report in The American Journal of Clinical Nutrition, is that beverages have “weak satiety properties” — they do little or nothing to curb your appetite — and people do not compensate for the calories they drink by eating less.

Furthermore, some soft drinks contribute to other health problems. The American Academy of General Dentistry says that noncola carbonated beverages and canned (sweetened) iced tea harm tooth enamel, especially when consumed apart from meals. And a study of 2,500 adults in Framingham, Mass., linked cola consumption (regular and diet) to the thinning of hip bones in women.

If you must drink something sweet, the panel suggested a no-calorie beverage like diet soda prepared with an approved sweetener, though the experts recognized a lack of long-term safety data and the possibility that these drinks “condition” people to prefer sweetness.

Fruit juices are also a sweet alternative, although not nearly as good as whole fruits, which are better at satisfying hunger.

Coffee, Tea and Caffeine

Here the news is better. Several good studies have linked regular coffee consumption to a reduced risk of developing Type 2 diabetes, colorectal cancer and, in men and in women who have not taken postmenopausal hormones, Parkinson’s disease.

Most studies have not linked a high intake of either coffee or caffeine to heart disease, even though caffeinated coffee raises blood pressure somewhat and boiled unfiltered coffee (French-pressed and espresso) raises harmful LDL and total cholesterol levels.

Caffeine itself is not thought to be a problem for health or water balance in the body, up to 400 milligrams a day (the amount in about 30 ounces of brewed coffee). But pregnant women should limit their intake because more than 300 milligrams a day might increase the risk of miscarriage and low birth weight, the panel said.

Mice prone to an Alzheimer’s-like disease were protected by drinking water spiked with caffeine equivalent to what people get from five cups of coffee a day. And a study of more than 600 men suggested that drinking three cups of coffee a day protects against age-related memory and thinking deficits.

For tea, the evidence on health benefits is mixed and sometimes conflicting. Tea lowers cancer risk in experimental animals, but the effects in people are unknown. It may benefit bone density and help prevent kidney stones and tooth decay. And four or five cups of black tea daily helps arteries expand and thus may improve blood flow to the heart.

Alcohol

Alcohol is a classic case of “a little may be better than none but a lot is worse than a little.” Moderate consumption — one drink a day for women and two for men — has been linked in many large, long-term studies to lower mortality rates, especially from heart attacks and strokes, and may also lower the risk of Type 2 diabetes and gallstones. The panel found no convincing evidence that one form of alcohol, including red wine, was better than another.

But alcohol even at moderate intakes raises the risk of birth defects and breast cancer, possibly because it interferes with folate, an essential B vitamin. And heavy alcohol consumption is associated with several lethal cancers, cirrhosis of the liver, hemorrhagic stroke, hypertension, dementia and some forms of heart disease.

Dairy and Soy Drinks

Here my reading of the evidence differs slightly from that of the panel, which rated low-fat and skim milk third, below water and coffee and tea, as a preferred drink and said dairy drinks were not essential to a healthy diet. The panel acknowledged the benefits of milk for bone density, while noting that unless people continue to drink it, the benefit to bones of the calcium and vitamin D in milk is not maintained.

Other essential nutrients in milk include magnesium, potassium, zinc, iron, vitamin A, riboflavin, folate and protein — about eight grams in an eight-ounce glass. A 10-year study of overweight individuals found that milk drinkers were less likely to develop metabolic syndrome, a constellation of coronary risk factors that includes hypertension and low levels of protective HDLs. To me, this says you may never outgrow your need for milk.

The panel emphasized the need for children and teenagers to drink more milk and fewer calorically sweetened beverages.

“Fortified soy milk is a good alternative for individuals who prefer not to consume cow milk,” the panel said.

Correction: March 31, 2007

The Personal Health column in Science Times on Tuesday about healthful beverages included incorrect information from the Beverage Guidance Panel about soy milk. It can indeed be legally fortified with vitamin D.


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Saturday, March 24, 2007

India Made Easy - New York Times

India Made Easy - New York Times

Tomas Munita for The New York Times

A Buddhist monk takes a break before the Taj Mahal in Agra, India. A well-planned short visit to India doesn’t have to bypass major tourist sites.

Published: March 25, 2007

FOR the first-time visitor to India, the sheer vastness of the country — more than a million square miles — all but defeats the romantic notion of seeing all that this place has to offer in anything approaching the usual time frame of a normal vacation. Retirees no longer punching the clock, college students who want to take a couple of semesters off, backpackers on a global journey of exploration: these are the kinds of travelers that India seems made for.

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New Delhi Travel Guide

The New York Times

Tomas Munita for The New York Times

The tomb of Humayun, a Mughal emperor, near the Lodi Gardens in New Delhi.

Tomas Munita for The New York Times

Sunset over the cenotaphs of Orchha, viewed from across the Betwa River. Now a quiet farming village, Orchha was once the capital city of a powerful clan, the Bundelas.

Photographs by Tomas Munita for The New York Times

A woman with children in Gwalior.

But what about the rest of us who are limited to one or two weeks of vacation a year? Is India completely beyond our grasp?

In a word, no. Even sampling the tiniest geographical crumb of India over a period of 7 to 10 days can be a satisfying travel experience.

Quite rightly, no one wants to miss the Taj Mahal, especially on a first visit, so our suggested route pivots around that Platonic ideal of tourist attractions. Spending a couple of days first in the nearby capital of New Delhi — a strange patchwork of imperial Mughal monuments, bustling urban villages, leafy British Raj-era avenues and expanding middle-class housing colonies — is bound to give you a good taste of urban India. Still, some two-thirds of Indians live outside the nation's cities. With that in mind, this route, after passing through Agra, site of the Taj, and the ruins and palaces of Gwalior, culminates in Orchha, a riverside village well-stocked with palaces, tombs, Hindu temples and ordinary village life.

Rajasthan? That fascinating, tourist-infested merry-go-round has been deliberately omitted, though it is a place worth coming back to when you have time to explore its less overdeveloped pockets. The hiking trails of the Himalayas and the beaches of Goa? Next time.

Start your trip in New Delhi. Like a steaming bath, the city is best eased into slowly, and there are few sights more soothing than catching an advanced yoga practitioner holding a pose in the city's lush Lodi Gardens with the spooky, 15th-century domed tombs of the Lodi sultans looming in the background. Residents from the well-to-do neighborhoods nearby go there to picnic or jog it all off, while young couples still head there to coo discreetly, keeping alive the park's historic function as a romantic hideaway safe from conservative parents' horrified eyes.

The gardens are convenient to sites like Humayun's Tomb, a serene, enormous red sandstone monument dedicated to the second of India's Mughal emperors, who lost an empire, recaptured it, and died in 1556 in an unlucky tumble down a staircase. As you gaze at the pearly-white onion dome, you might wonder to yourself: how much nicer can the Taj Mahal possibly be?

Other interesting old monuments — the Kalan Masjid, Khan-i-Khanan's Tomb — are scattered about the surrounding neighborhoods, some primarily used as giant, priceless wickets for informal cricket matches. From Humayun's Tomb, a mad scamper across busy Mathura Road will get you to the shrine of the Sufi saint and mystic Nizamuddin Auliya. As with all the approaches to India's sacred pilgrimage sites, there is a gantlet of brazen commerce to be run, in this case mostly of men selling rose petals, just the kind Nizamuddin likes to be offered if he's even to think about answering your prayers. A defunct airport-style metal detector marks the edge of hallowed ground; it is here, and no sooner, regardless of the cries of the petal-sellers, that you must leave your shoes (here and anywhere else you go barefoot, storage for 5 to 10 rupees a pair, or less than 25 cents at 45 rupees to the U.S. dollar, is about right). Women are expected to cover their heads — shawls go for around 50 rupees.

Spend enough time watching the crowds flit around the chandeliered, prettily painted shrine, and sooner or later a small troupe of qawwali singers will shuffle into the marble courtyard. A crowd gathers around as they sit cross-legged with harmoniums and tablas, using their hands to almost physically fling their rhythmic, ever-escalating hymns through the shrine's open doorway. If the mood strikes, you are welcome to rise up and whirl like a dervish with arms outstretched in ecstasy.

The crowded, narrow lanes of the neighborhood surrounding the shrine are only a warm-up for a visit to Shahjahanabad, the walled city built by the Mughal Emperor Shah Jahan in the 17th century and now usually called Old Delhi, though it is by no means the oldest part of the city. The obvious sights include the beautiful Jama Masjid, reputedly India's largest mosque (the view of the strangely cubic cityscape from the top of one of the minarets is more than worth the 20-rupee ticket), and the hulking Red Fort, its innards sorely vandalized by the British.

But aimlessly exploring the walled city's monstrously corroded grandeur is much more fun. Bazaars are often devoted to a single trade, thus a street given over to shops selling wedding stationery abuts another swimming in oily motor parts.

Much of Old Delhi life goes on unabashedly out in the open. Young men get facials in open-fronted male beauty parlors, or you might spot a gaggle of children getting bucket-washed in the courtyard of a haveli, a once-grand mansion sunk into decay. Some kind of encounter with goats is virtually guaranteed, many of them dressed attractively in ladies' sweaters during the winter. None of them seem even remotely alarmed at the sight of stalls piled high with severed goats' heads.

It pays to be friendly to any sweaty, orange-glowing man you see perched over the fire-filled manhole of a bakery's tandoori oven. He may reach in and fish out a free naan for you, carefully trying to avoid burning yet another scar into his forearm. Even the most nervous of street-food eaters should try the fresh-baked sweet potato, dusted with some delicious species of sneezing powder.

Karim's restaurant, near the Jama Masjid, remains one of the best places to sample rich, if rather oily, Mughlai food. Try the mutton qormas with romali rotis and seekh kebabs, or, if you are adventurous, the mutton brain, if only to look at it sitting eerily in the middle of the table.

A tour of the neighborhood wouldn't be complete without a cycle rickshaw ride down the traffic-choked Chandni Chowk, the area's — if not all of India's — main shopping thoroughfare, lined with shops selling drippingly sweet candies, lurid textiles, perfumes and jewelry, with an anomalous branch of McDonald's thrown in for good measure.

You can see Delhi's more contemporary face by taking a chasmic leap up the city's class hierarchy and hanging out with the moneyed middle class, for whom life has never been so good, at the poolside bar of the Park Hotel, which opened in 1987. The hotel's curvy retro-futuristic interior was redesigned by Conran & Partners, perhaps immediately after watching “Barbarella.”

When you're ready to dance, move inside to the Agni bar. Delhi nightlife is rarely hip, but it can be fun, providing you have a taste for the bhangra beats and warbly vocals of a lot of Hindi pop music. Ask the D.J. to play the addictive megahit “Kajra Re,” assuming he hasn't played it three times already.

TWO days gone, and it is time to venture out of Delhi to Agra, a trip best taken by train, at least in part for the inevitable encounters with locals.

The most convenient train is the 7:15 a.m. Taj Express, which leaves from Hazrat Nizamuddin station, not too far from Lodi Gardens, and arrives in Agra two and a half hours later. It's an impressive feat for a foreigner to not make some new friends on an Indian train, whether sitting with the bureaucrats and retired majors in the air-conditioned carriages, or the farmers and migrant laborers squeezing into the cheap seats. Though not even an astrologer would rush into making generalizations about an entire sixth of humanity, it seems fair to say that Indians are mostly a gregarious bunch, always ready to submit strangers to a cheerful interview.

Between Delhi and Agra lies a strange, never quite fully rural hinterland, into which countless trains excrete a steady stream of litter through their windows. The novelty of waving at the trains happily never wears off for children living near the tracks.

In Agra, it's worth hiring a taxi for the duration of a stay. Most hotels can sort this out, and it sidesteps the hassle of rickshaw drivers trying to score commissions by herding you into a souvenir shop. You can expect to pay 500 to 900 rupees a day for the taxi, depending on whether it is air-conditioned or not.

As a kind of Agra appetizer, drive out to Akbar's mausoleum (entrance 110 rupees) in Sikandra, a little over five miles northwest of the city center. The perfectly named Gateway of Magnificence is the real highlight here, spiced up with some jazzy geometric tile work. The gardens, where blackbuck antelope with perfectly helical horns socialize with friendly yellow butterflies, are a soothing retreat from Agra's ugly bustle.

Deep inside the tomb is the utterly bare, high-ceilinged inner sanctum, musty and echoing, where lies the petal-strewn grave of Akbar the Great, the third and most revered of the Mughal emperors. But it's his grandson's final resting place that you've really come all this way for.

Shah Jahan built the Taj Mahal (entrance 750 rupees) in the 17th century as the mausoleum for his favorite wife, Mumtaz Mahal, who died soon after giving birth to her 14th child. Tourist etiquette seems to demand that a visitor swoon in a dead faint at every mention of the sheer romance of Shah Jahan's enterprise.

Shah Jahan, megalomaniacal even by Mughal standards, knew how to make a bombastic first impression. A red sandstone gateway blocks off all sight of the Taj until the very last, sudden moment, and the cymbal crash that is the first real-life glimpse of its absurd beauty tends to reverberate. Up close, interior marble surfaces still glow with flowers made of inlaid precious stones, while the lovely giant squiggles of stylized Persian calligraphy on the outside walls put the letters of our dowdy Roman alphabet to shame.

As transcendent as the Taj may be, it's hard not to notice that all of touristdom is here. Yet almost none of them will bother to drive across the Yamuna River over a knackered bridge, through a village and past some eggplant fields to come to Mehtab Bagh (100 rupees), a recently spruced-up riverside park believed to have been laid out by Shah Jahan himself specifically for Taj-gazing. The tourists milling about on the Taj's platform are just a stone's throw away, and yet you have the view pretty much to yourself. For much of the year the Yamuna all but dries up, and you can crawl down below some barbed wire to the riverbed to hang out with kids herding their buffaloes and women doing the laundry in the Yamuna's murky trickle, a far more authentic Indian foreground than the faintly incongruous English-style formal gardens within the Taj grounds.

Even if you can't afford to stay in one of the deluxe Taj-view rooms, at least head to the Oberoi Amarvilas hotel for dinner and for a sense of what it might look like if you had a Mughal emperor's budget to spend on interior design. You'll have to dress up in your finest to look even half as great as the staff swaddled in traditional textiles as you join the other tourists in raptures over its fine Mughlai food served in opulent surroundings to live Hindustani classical music.

It's easy to spend at least a day exploring the palaces, gardens and mosques of the 16th-century Agra Fort, which offers perhaps the dreamiest view of the Taj yet from the ornate tower in which Shah Jahan was imprisoned for the final eight years of his life by his son, with whom he did not get on so well. Fatehpur Sikri (entry to restricted part 20 rupees), the whimsical city built by Akbar in 1571 and abandoned to the parakeets 15 years later because it was too far from the nearest water source, is no more than an hour's drive from Agra, though, again, it receives only a small fraction of the Taj's tourists. The mosque, still in use, is the architectural climax here: you can fall over backward gawking at the Victory Arch. If you're up to the task, it's possible to have a conversation consisting entirely of cricketers' names with the boys from the ramshackle Muslim neighborhoods nearby who loiter on the steps.

NEXT morning, say goodbye to the Jaipur-bound package-tour crowd and take the two-hour train down to the cliff-top fortress at Gwalior (entry 100 rupees). The highlight here is the Mansingh Palace, decorated with a strangely pre-school aesthetic: the massive outer ramparts are tiled with patterns of giant green beanstalks and friezes of cartoonish yellow ducklings. The unathletic should note that the ruins are a painfully steep hike up from the main bazaar.

Back down in the town, Gwalior's former royal family still live in the grand white 19th-century Jai Vilas Palace (their smaller spare palace next door has been converted into a luxury hotel by the Taj Group). A portion of it has been opened to the public (200 rupees) as a kind of tribute to the former maharajah's groovy playboy taste in home interiors, encompassing psychedelically painted walls, mirrored bars and, in the banquet hall, a cut-glass toy train designed to chug around the room towing after-dinner brandy and cigars. I particularly liked the displays of snapshots, some showing the maharajah shaking hands with notables such as Saddam Hussein, another showing the royal couple posing in front of the Eiffel Tower, him in sports casuals, her in a green sari, with her trademark feline eyeliner and bouffant hairdo. Taking me to be a connoisseur, a sniggering guard pointed out some of his favorites from the palace's collection of erotic art. The tour ends up a grand staircase in the gold-drenched assembly hall. Its two colossal chandeliers weigh 3.5 tons each, a guard, who was slumped in the doorway, told me after I woke him up.

About 90 minutes south of Gwalior by train, Orchha was once the grand capital city of the powerful Bundela clan, but is now, as per the usual laws of Indian entropy, a cheerful farming village. The main 17th-century, semi-ruined palace complex sits on what amounts to an island in the Betwa, an implausibly clean and pretty river. For a little baksheesh, one of the guards will unlock a couple of the royal bedrooms leading off the main quadrangle in the Raj Mahal to reveal some well-preserved murals of hunting scenes.

A 20-minute walk south along the river bank leads to the cenotaphs of Orchha's former rulers, each a large mansion-size hunk of spire-topped stone. You can hunt around the walls for the deathly slippery stone staircases to the roofs, where you can sit among the spires enjoying the river views alongside the resident vultures.

Orchha village itself is dominated by its lively market-lined square, where bedraggled, dreadlocked and saffron-robed sadhus — ascetic Hindu holy men — wander around in a kind of daze, detached from the more pedestrian plane of reality through a precise combination of religious devotion and cannabis. Sometimes a few of them will sing very long songs.

On one side of the square stands the cavernous Chaturbhuj Mandir, looking as much like a hollowed-out European cathedral as a Hindu temple; nearby is the gaudy Ram Raja Temple, a magnet for Hindu pilgrims and wedding parties.

There's also some good temple-hopping in the opposite direction to the cenotaphs, where temple spires — sikharas — recede into the soggy horizon spanned with flooded rice paddies. The occasional child might come galloping over from three fields away in the certain knowledge you'll want her posing in your photograph, but by and large so few tourists bother to come here that the local women have taken to drying their laundry on the information boards.

After the six-hour train ride back to Delhi, if there's still some time to kill, ink drawings on parchment, handmade Himalayan shawls, mirrored fabrics and other souvenirs can be gathered at the Crafts Museum (free entry, closed Monday) near the Purana Qila on Mathura Road. There are often live demonstrations by craftsmen, and the museum itself has an absorbing array of exhibits, including an artisan's entire wooden house stuffed into the back of a room.

That should still leave time to head for the Atrium, the tea room at the 1930's Imperial Hotel on central Delhi's Janpath. Take a seat near the fountain in this most opulent of Raj-era relics, order tea and cakes, pull out your guidebook, and begin plotting your return to India.

VISITOR INFORMATION

Continental Airlines (www.continental.com) is selling round-trip flights from Newark airport to New Delhi from about $1,150 through its Web site. The number of Indian domestic airlines — which include Spice Jet and Air Deccan — has grown to about a dozen, and the competition means that extending your itinerary to explore other parts of India need not be expensive. With suitably advanced booking it is possible to fly halfway across the country from about 2,000 rupees (about $45 at 45 rupees to the U.S. dollar) if you book through one of the budget airlines' Web sites. (See www.flyairdeccan.net; www.goindigo.in; www.spicejet.com.)

Besides taking along the Lonely Planet or Rough Guide, check out the friendly online forum at www.indiamike.com: it effectively puts the collective wisdom of all backpackers in India at your disposal, which is even more useful than it sounds.

DELHI

Reserve your train ticket to Agra as soon as you can unless you want to spend the journey standing; Naveen Anand at Sea India Tourist Information Bureau (91-11-2374-6568 and 91-98100-41722) is always helpful, and can deliver tickets to most hotels. Auto-rickshaws are the cheapest way of getting around Delhi, though most drivers refuse to use the meter. Bear in mind that a 10-kilometer trip (about six miles) should be about 40 rupees — it's rare you'll be traveling much farther than this. The graceful white Imperial Hotel (91-11-2334-1234; www.theimperialindia.com) on Janpath in central Delhi remains the city's swankiest address. Double rooms start at $480.

For a homier stay, check into Ahuja Residency (193 Golf Links, New Delhi; 91-11-2462-2255; www.ahujaresidency.com), a guesthouse in one of Delhi's most elegant residential colonies. Double rooms start at 3,150 rupees, including taxes.

Karim's (91-11-2326-9880; Gali Kababian, near Jama Masjid). Seekh kebabs are 18 rupees each; qormas go for about 110. For the classic middle-class Delhi resident's dinner, head to Swagath (91-11-2433-0930) in the typically shabby Defense Colony market complex. Even if the décor is somewhat forgettable, it serves some of the best seafood in landlocked Delhi, and its spicy south Indian Chettinad curries are especially good. Expect to pay about 800 to 1,000 rupees, without alcohol.

At the Park Hotel's Fire restaurant (91-11-2374-3000; www.theparkhotels.com) modern pan-Indian food, distinguished mostly by the quality of its ingredients, is served under artful clusters of bare light bulbs. Dinner should run about 1,500 rupees.

AGRA

Rooms at Oberoi Amarvilas (91-562-223-1515; www.oberoiamarvilas.com) start from $600, while the fanciest suite goes for $3,300 (not including 5 percent tax).

Quite a bit cheaper is the Hotel Yamuna View, formerly the Hotel Agra Ashok (91-562-236-1223; www.hotelagraashok.com), about a 10-minute drive from the Taj; its clean rooms are cozy enough, with doubles from 3,900 rupees plus tax.

Main courses at the Oberoi's Esphahan restaurant — including chicken cooked with almond milk, saffron and rose petals — are between 500 and 1,000 rupees.

If you can't eat at the Oberoi for every meal, and can't face another backpacker joint, Zorba the Buddha (91-562-222-6091) does fresh and light Indian dishes, each going for about 100 rupees. It's near the Yamuna View in the Shopping Arcade at Sadar Bazaar.

GWALIOR

Allow yourself some extra time to stand in line for tickets before catching the lunchtime train to Jhansi for Orchha; tickets in standard class are about 50 rupees.

At the Usha Kiran Palace (91-751-244-4000; www.tajhotels.com), airy rooms in this pretty white palace usually go from $195, plus tax, but a call to the reservations desk turned up a room for $130.

Those on a tighter budget will be happy at the recently renovated Tansen Residency (91-751-234-0370; www.mptourism.com), where air-conditioned rooms begin at 1,200 rupees including taxes. Stick to the hotels for dinner.

ORCHHA

The Madhya Pradesh state tourism department has done a great job converting part of the palace complex into the Hotel Sheesh Mahal (91-07680-252-624), which has the best location in town. A suite (there are two) goes for 4,990 rupees; rooms start at 1,190 rupees. It's a shame the restaurant's food is so bland.

Betwa Tarang (91-07680-252-101), which has an upstairs outdoor terrace with palace views, is one of the better backpacker joints. It's just before the palace complex bridge, and most dishes are not much more than 100 rupees.

JONATHAN ALLEN is a writer based in New Delhi.


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Sunday, March 18, 2007

Without Mouth-to-Mouth, CPR Still Works - New York Times

Without Mouth-to-Mouth, CPR Still Works - New York Times

March 17, 2007

Without Mouth-to-Mouth, CPR Still Works

Chest compressions — not mouth-to-mouth resuscitation — seem to be the key in helping someone recover from cardiac arrest, according to new research that further bolsters advice from heart experts.

A study in Japan showed that people were more likely to recover without brain damage if rescuers focused on chest compressions rather than on rescue breaths, and some experts advised dropping the mouth-to-mouth part of CPR altogether. The study was published yesterday in The Lancet.

More than a year ago, the American Heart Association revised CPR guidelines to put more emphasis on chest presses, recommending 30 instead of 15 for every two breaths given. Stopping chest compressions to blow air into the lungs of someone who is unresponsive detracts from the more important task of keeping blood moving to provide oxygen and nourishment to the brain and heart.

Another big advantage to dropping the rescue breaths is that it could make bystanders more willing to provide CPR. Many are unwilling to do the mouth-to-mouth part, become flummoxed or are fearful of getting the ratio of breaths to chest compressions right in an emergency.

In the new study, researchers led by Dr. Ken Nagao of the Surugadai Nihon University Hospital in Tokyo analyzed 4,068 adult patients who had cardiac arrest witnessed by bystanders. Of those, 439 received only chest compressions, and 712 received conventional CPR.

Any CPR effort improved survival odds. But 22 percent of those who received just chest compressions survived with good neurological function compared with only 10 percent of those who received combination CPR.

“Eliminating the need for mouth-to-mouth ventilation will dramatically increase the occurrence of bystander-initiated resuscitation efforts and will increase survival,” Dr. Gordon Ewy, a cardiologist at the University of Arizona College of Medicine in Tucson, wrote in The Lancet in an opinion article accompanying the article.

A big caveat: The combination CPR in the Japanese study was given according to the old guidelines of 15 presses for every two breaths, not the 30 presses recommended now.

Although the study supported the use of chest presses only, the American Heart Association did not expect its advice to change. It recommends that bystanders provide compression-only CPR if they are “unwilling or unable” to do mouth-to-mouth breathing at the same time, and for emergency dispatchers to give instructions on that.

The association wants to see survival results from programs that use compression-only CPR for cardiac arrest.

“It is important to note that victims of cardiac arrest from noncardiac causes, like near-drowning or electrocution, and almost all victims of pediatric cardiac arrest benefit from a combination of rescue breathing and chest compressions,” a heart association statement says.

More than 300,000 Americans die from cardiac arrest each year. About 75 percent to 80 percent of all cardiac arrests outside a hospital happen at home, and effective CPR can double a victim’s chance of survival.

Roughly 9 out of 10 cardiac arrest victims die before they get to a hospital — partly because they do not get CPR.


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Where Was God? by William Safire

Where Was God? by William Safire

By WILLIAM SAFIRE
New York Times Op-Ed Columnist

Washington

In the aftermath of a cataclysm, with pictures of parents sobbing over dead infants driven into human consciousness around the globe, faith-shaking questions arise: Where was God? Why does a good and all-powerful deity permit such evil and grief to fall on so many thousands of innocents? What did these people do to deserve such suffering?

After a similar natural disaster wiped out tens of thousands of lives in Lisbon in the 18th century, the philosopher Voltaire wrote "Candide," savagely satirizing optimists who still found comfort and hope in God. After last month's Indian Ocean tsunami, the same anguished questioning is in the minds of millions of religious believers.

Turn to the Book of Job in the Hebrew Bible. It was written some 2,500 years ago during what must have been a crisis of faith. The covenant with Abraham - worship the one God, and his people would be protected - didn't seem to be working. The good died young, the wicked prospered; where was the promised justice?

The poet-priest who wrote this book began with a dialogue between God and the Satan, then a kind of prosecuting angel. When God pointed to "my servant Job" as most upright and devout, the Satan suggested Job worshipped God only because he had been given power and riches. On a bet that Job would stay faithful, God let the angel take the good man's possessions, kill his children and afflict him with loathsome boils.

The first point the Book of Job made was that suffering is not evidence of sin. When Job's friends said that he must have done something awful to deserve such misery, the reader knows that is false. Job's suffering was a test of his faith: even as he grew angry with God for being unjust - wishing he could sue him in a court of law - he never abandoned his belief.

And did this righteous Gentile get furious: "Damn the day that I was born!" Forget the so-called "patience of Job"; that legend is blown away by the shockingly irreverent biblical narrative. Job's famous expression of meek acceptance in the 1611 King James Version - "though he slay me, yet will I trust in him" - was a blatant misreading by nervous translators. Modern scholarship offers a much different translation: "He may slay me, I'll not quaver."

The point of Job's gutsy defiance of God's injustice - right there in the Bible - is that it is not blasphemous to challenge the highest authority when it inflicts a moral wrong. (I titled a book on this "The First Dissident.") Indeed, Job's demand that his unseen adversary show up at a trial with a written indictment gets an unexpected reaction: in a thunderous theophany, God appears before the startled man with the longest and most beautifully poetic speech attributed directly to him in Scripture.

Frankly, God's voice "out of the whirlwind" carries a message not all that satisfying to those wondering about moral mismanagement. Virginia Woolf wrote in her journal "I read the Book of Job last night - I don't think God comes well out of it."

The powerful voice demands of puny Man: "Where were you when I laid the Earth's foundations?" Summoning an image of the mythic sea-monster symbolizing Chaos, God asks, "Canst thou draw out Leviathan with a hook?" The poet-priest's point, I think, is that God is occupied bringing light to darkness, imposing physical order on chaos, and leaves his human creations free to work out moral justice on their own.

Job's moral outrage caused God to appear, thereby demonstrating that the sufferer who believes is never alone. Job abruptly stops complaining, and - in a prosaic happy ending that strikes me as tacked on by other sages so as to get the troublesome book accepted in the Hebrew canon - he is rewarded. (Christianity promises to rectify earthly injustice in an afterlife.)

Job's lessons for today:

(1) Victims of this cataclysm in no way "deserved" a fate inflicted by the Leviathanic force of nature.

(2) Questioning God's inscrutable ways has its exemplar in the Bible and need not undermine faith.

(3) Humanity's obligation to ameliorate injustice on earth is being expressed in a surge of generosity that refutes Voltaire's cynicism.


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Tuesday, March 13, 2007

Epic of Human Migration Is Carved in Parasites’ DNA - New York Times

Epic of Human Migration Is Carved in Parasites’ DNA - New York Times

March 13, 2007

A human body is not the individual organism its proud owner may suppose but rather a walking zoo of microbes and parasites, each exploiting a special ecological niche in its comfortable, temperature-controlled conveyance. Some of these fellow travelers live so intimately with their hosts, biologists are finding, that they accompany them not just in space but also in time, passing from generation to generation for thousands of years.

The latest organism to be identified as a longtime member of the human biota club is Streptococcus mutans, the bacterium that causes tooth decay. From samples collected around the world, Dr. Page W. Caufield and colleagues at New York University have found that the bacterium can be assigned by its DNA to several distinct lineages. One is found in Africans, one in Asians and a third in Caucasians (the people of Europe, the Near East and India), his team reported in last month’s Journal of Bacteriology.

The geographical distribution of these lineages reflects the pattern of human migration out of the ancestral homeland in Africa. If the tooth decay bacterium spreads easily from person to person, any geographical pattern would soon be blurred. But Streptococcus mutans is transmitted almost entirely from mother to child, preserving its lineages over thousands of years. The bacteria apparently infect the infant during birth, beginning the work that provides the dentistry profession its livelihood. “We’ve never seen father-to-child transmission,” Dr. Caulfield said. Thanks, Mom.

Another faithful member of the human road show is Helicobacter pylori, a bacterium that inhabits half the stomachs in the world. It is a usually well-behaved guest, but gives its hosts ulcers when it acts up. Its pattern of geographic distribution matches that of its host’s migrations, Dr. Mark Achtman of the Max Planck Institute in Berlin and colleagues reported in the journal Nature last month.

There are five ancestral populations of H. pylori — two in Africa, two in Europe and one in East Asia. But all had a common origin, Dr. Achtman said, in a bacterium that started to spread out from East Africa 58,000 years ago, give or take 3,000 years. This is the same time period in which modern humans are thought to have begun their migration out of Africa. The match in dates “implies that H. pylori was present in Africa before the migrations, suggesting that Africa is the source of both H. pylori and humans,” Dr. Achtman and colleagues conclude evenhandedly.

H. pylori seems to be transmitted within families but the exact route — perhaps vomit — is unclear. “It’s amazing that any microbe’s geographical distribution would parallel that of humans as well as pylori’s does,” Dr. Achtman said. “You think of microbes as being easily

transmissible and they are carried all over the world on ships and planes, yet some have not lost these signals of ancient migrations.”

DNA analysis has also shed light on the origin of the tapeworm, one of the 400 or so nonmicrobial parasites that regard the human body as home. The lifecycle of the tapeworm Taenia asiatica alternates between people and pigs, an animal that the religious authorities of both Judaism and Islam agree is unclean. It would be of interest to know just when these filthy animals infected people with their parasites. But the answer is not quite what had been expected.

Eric P. Hoberg, of the U.S.D.A.’s Agricultural Research Service in Beltsville, Md., concluded in 2001 that people contracted tapeworms millions of years ago in Africa, long before the emergence of agriculture and domestic animals. It was humans who infected pigs with tapeworms, not the other way around, Dr. Hoberg and colleagues reported. Indeed, people infected pigs not only with Taenia asiatica but also with a second species of tapeworm, Taenia solium, which humans seem to have acquired either by eating each other or by eating dogs.

If pigs had a religion, it is pretty easy to guess which species they would designate as unclean.


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A Place to Turn When a Newborn Is Fated to Die - New York Times

A Place to Turn When a Newborn Is Fated to Die - New York Times

March 13, 2007

MINNEAPOLIS — The day after Alaina Kilibarda was born, her breathing started to falter, as her family knew it might. During the pregnancy, doctors had told James and Jill Kilibarda that their baby had a lethal genetic problem that would probably end her life within hours of birth.

Most couples choose to have an abortion when they learn that the fetus has a fatal condition. But experts say about 20 to 40 percent of families given such diagnoses opt to carry the pregnancy to term, and an increasing number of them, like the Kilibardas, have turned to programs called perinatal hospice for help with the practical and spiritual questions that arise.

Having learned through the hospice to make the most of the time they had with their child, Alaina’s parents held her and told her things that people reveal to their children spontaneously and haphazardly over a lifetime. Into the October night, as her breathing halted and resumed, they explained how they met in Texas, though both were from Minnesota, and that they fell for each other at first sight. “And we told her that we’ll let her go,” Mrs. Kilibarda said, “and that it’s O.K. to go.”

Traditionally, doctors and nurses dealt with babies born with fatal anomalies by whisking them away from their mothers to die. But in the 1970s, a perinatal bereavement movement began offering parents another way to deal with the death of a child at birth, by acknowledging the grief they feel and by creating family and religious rituals around a stillbirth or early death.

Drawing on that philosophy, at least 40 perinatal hospice programs have been started in the United States in the last decade, said Amy Kuebelbeck, an author in St. Paul whose son Gabriel died of a heart condition hours after his birth in 1999 and who has researched the subject.

A collection of services rather than a stand-alone facility, perinatal hospice programs are often associated with hospitals. Hospice nurses and social workers do things like arrange birthing lessons for women who do not want to be in classes with those carrying healthy babies. They give advice on how to tell other children in the family that the new baby will not be growing up with them. If the newborn lives beyond a few days, the hospice staff teaches the family how to take care of the baby at home.

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“Families can choreograph their child’s very brief life with their family,” said Lizabeth Sumner, palliative care coordinator at Elizabeth Hospice in Escondido, Calif. “Sometimes they may have a matter of minutes, so they decide beforehand who can hold the baby, who will cut the umbilical cord, who will hold the baby when you know he is going to die.”

The Kilibardas’ daughter survived that first night and is now 20 weeks old. But her parents realize those anxious early hours may be replayed when she dies, probably before she reaches preschool.

At first, the Kilibardas did not even know what to ask about. But the hospice program guided them through the possibilities. “I was really reluctant to do it,” Mr. Kilibarda said. “It was like homework. But in the end, I felt that if anything were to happen, Jill and I had probably discussed it already.”

Giving Families Control

Some in the anti-abortion movement strongly support perinatal hospices. In Minnesota, a law was passed last year that called for women to be informed about perinatal hospices. But many hospice workers seem free of ideology. They say they hope to give families control over an event that could otherwise crush them. They also say they want to ease the isolation many families face in dealing with profound grief.

“I tell them this will shake up their relationships with their family and friends, it will shake what they believe about the world and their faith,” said the Rev. Peter Lund, a United Church of Christ minister and chaplain of the hospice program at Children’s Hospitals and Clinics of Minnesota in Minneapolis.

The questions the experience unearths are the most essential people face, he added. “How does your inner life fare, your relationship with God, as this progresses? How do you deal with everything that comes up? And how does that echo inside you?”

The Children’s Hospitals program here is called Deeya, Sanskrit for “a small light.” Since 2001, Deeya has served six to eight families a year, who mostly hear of it from genetic counselors and midwives. At the Birth Center of United Hospital in St. Paul, about 24 families a year choose the perinatal hospice approach.

The numbers are growing but small, said Jody Chrastek, Deeya’s director, because many health care workers do not know the program exists, and some doctors are hostile to families continuing the pregnancies.

“Some have been told they’re wasting their time for a baby that would be dead anyway,” Ms. Kuebelbeck said. “Some have been told they’re wasting the doctor’s time.”

Supported by a grant from a family that lost a child years ago, Deeya is free. But money for perinatal hospices is frequently offered with the stipulation that families be steered away from abortion, should they reconsider their decision to proceed with the pregnancy, Ms. Chrastek said. Deeya and many other programs not affiliated with the anti-abortion movement decline such offers.

Families in hospice programs generally decide to let their children die without aggressive medical intervention, including feeding tubes, intravenous fluids and surgeries. They give medication to ease the child’s discomfort. Most children whose families participate in Deeya are stillborn or die within hours of birth, Ms. Chrastek said. About 30 percent of children go home with their families, where most eventually die.

For Mike and Janel Newell, the first hints of problems with their second child came after an ultrasound and blood test at 12 weeks. Their baby was found to have so many problems that no one seemed certain what would happen to him.

The ultrasound showed a large fluid-filled growth that extended from the back of the baby’s head to the base of his spine. Many families learn of problems this way, as routine ultrasounds uncover abnormalities like extra digits, club feet or cleft palates that sometimes signal far more severe problems, said Dr. Suzanne Toce, medical director of the Neonatal Intensive Care Unit at Gundersen Lutheran Health System in La Crosse, Wis., and director of a hospice program.

Chromosome tests revealed nothing unusual. But the baby’s cyst could not be removed, the Newells were told. It was so large that it was probably pushing against his trachea, and would limit his breathing. Facing such news, the Newells discussed terminating the pregnancy.

“Our knee-jerk reaction was to terminate the pregnancy because we couldn’t burden our family with such a sick baby,” Mr. Newell, 39, said. “It was a big relief for me when we asked our doctor if the baby had any chance and he said, ‘No.’ We didn’t have to make the choice anymore. It was completely out of our hands, and that was a better place to be.”

“So what do we do to make our time with him good,” said Mrs. Newell, 36, “because that would be our only time with him?”

Mrs. Newell’s midwife gave her the number of the Deeya program. People from the program came to their house, where Mrs. Newell works as a database architect and Mr. Newell is a stay-at-home father to their 2-year-old, William.

The most critical help Deeya provided, Mrs. Newell said, was a way to talk to others about the possible loss of their younger son, whom they named Joseph. “The program gave us permission to feel that this is something that is not out of the ordinary, that this is just life and people lose babies,” Mrs. Newell said. “And they showed us how to reach out to people who are helpful for us.”

A Deeya social worker, Martha Schermer, told Mrs. Newell that simple answers to questions from strangers about the baby’s due date were fine, but that co-workers and acquaintances needed more information, so they might provide support.

Facing the Bad News

The Newells had informed few of the pregnancy. Now, they had to tell family and friends that their child had life-threatening problems. In the first three weeks after they spread the news, no one called.

The isolation families experience when their baby is sick is common, Deeya staff members said. “Part of our role is to normalize things,” Mr. Lund said. “All your family may pull together with support. But the truth is, they will probably say the stupidest things or stay away entirely.”

Mrs. Newell’s father called and urged her to consider an abortion. The Newells say they are uncomfortable with any political meaning that people might read into their decision. They are church-going Roman Catholics, and support abortion rights. Two other families who spoke about their experiences are also religious and supporters of abortion rights.

“I can’t tolerate people who think this is anything but a gut-wrenching choice,” Mr. Newell said. “By the same token, it was our choice to make, and if you had tried to restrict that in any way, it would have been very upsetting.”

Over time, Joseph’s cyst contracted and then began to grow again. He developed kidney problems. Blood periodically stopped flowing through his umbilical cord.

Joseph Milton Newell was born on Jan. 8, 11 weeks early. A 5-pound, 2-ounce baby with his father’s nose and the same cleft chin as his older brother, Joseph was a stillbirth.

The nurses placed him on his mother’s chest, as if he were a healthy baby, and his parents held him for the short time they had. With the encouragement of hospice staff and his wife, Mr. Newell took the one chance he would have to dress Joseph.

For the moment, the Kilibardas have settled into the rhythms of any family with a newborn. Mrs. Kilibarda, 32, recently went back to work as manager of volunteer services for Habitat for Humanity, and she and her husband, who owns a driving school, are splitting the care of their baby, Alaina.

She is their first child, small and light as a bird. They bathe her, read to her, feed her. “When things are like this, you’re trying to rationalize how she will live forever, that maybe she’s the one, the one who makes it, and she’ll be fine,” Mr. Kilibarda, 33, said. “And then she has a bad coughing episode and it comes all crashing in.”

Alaina has Trisomy 18, one of several genetic anomalies that occur when a child has three chromosomes, rather than the normal two, in the 23 pairs of chromosomes people have. The most common disorder is Trisomy 21, which is Down Syndrome. Alaina has three chromosomes on the 18th pair, a condition so severe that something is wrong with every cell in her body, Mr. Kilibarda said. Most babies with Trisomy 18 die shortly after birth, often because they stop breathing. Alaina is among the rare 10 percent who live past two months.

Caring for Alaina

The couple, both Roman Catholics who support abortion rights, struggled with continuing with the pregnancy. “We’re spiritual people, and we decided we can give ourselves up to God,” Mr. Kilibarda said of their decision. “Her life will be what it will be. If she lives two weeks, that’s her life. She’s our child.”

After deciding to continue the pregnancy, the couple contacted Deeya.

A nurse at the hospital where Alaina would be delivered, Raquel Beucler, arranged private classes with a childbirth educator. Ms. Beucler checked on the Kilibardas during the delivery and spent time with their families in the waiting area. Most critical, she put the Kilibardas in touch with a neonatologist who talked to them about the problems their child might have and the medical interventions available. The couple decided against them.

Through the hospice, Mr. Kilibarda met Mr. Lund, the chaplain, who was at the Kilibarda home one recent morning. The Kilibardas were not close to their priest, and they felt reassured that the chaplain had helped others in their situation.

“When she was born, part of me wanted her to just pass away, so I could deal with the grief,” Mr. Kilibarda said. “That’s just sick, but I couldn’t help it. And I had Peter say others had told him that, too, and I thought, thank goodness, I’m not crazy.”

Alaina’s birth and the family’s discussions with Mr. Lund have made them think a great deal about God’s role.

“When we were expecting Alaina, people said, ‘You’re in our prayers,’ ” Mrs. Kilibarda said. “But people were praying to make it a mistake, to make it all better for us.

“We weren’t asking, ‘Make it all better,’ ” she said. “God doesn’t come down and touch you to heal you. He sends people to be with you.”

Hospice workers encouraged the Kilibardas to make memories with Alaina. So while parents of healthy newborns might avoid crowds or other situations where their children might get sick, the Kilibardas have taken their daughter to their favorite coffee shop, the houses of friends and big family get-togethers. They want to know, they said, that she was once in places that mean something to them, like the cold forests of northern Minnesota where Mr. Kilibarda grew up and where they recently took her.

“I want to go through this with my eyes open,” he said, explaining why he turned to the hospice program. “I want to feel every ounce of pain, of happiness, because if I avoid it now, it will come back to bite me. I want to experience grace. What does that mean, because it’s such a vague term?

“I’m still trying to figure it out. I think I’ll experience it when this event comes complete,” he said, as his voice cracked, “when she passes.”


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What’s So Funny? Well, Maybe Nothing - New York Times

What’s So Funny? Well, Maybe Nothing - New York Times

March 13, 2007
Findings

So there are these two muffins baking in an oven. One of them yells, “Wow, it’s hot in here!”

And the other muffin replies: “Holy cow! A talking muffin!”

Did that alleged joke make you laugh? I would guess (and hope) not. But under different circumstances, you would be chuckling softly, maybe giggling, possibly guffawing. I know that’s hard to believe, but trust me. The results are just in on a laboratory test of the muffin joke.

Laughter, a topic that stymied philosophers for 2,000 years, is finally yielding to science. Researchers have scanned brains and tickled babies, chimpanzees and rats. They’ve traced the evolution of laughter back to what looks like the primal joke — or, to be precise, the first stand-up routine to kill with an audience of primates.

It wasn’t any funnier than the muffin joke, but that’s not surprising, at least not to the researchers. They’ve discovered something that eluded Plato, Aristotle, Hobbes, Kant, Schopenhauer, Freud and the many theorists who have tried to explain laughter based on the mistaken premise that they’re explaining humor.

Occasionally we’re surprised into laughing at something funny, but most laughter has little to do with humor. It’s an instinctual survival tool for social animals, not an intellectual response to wit. It’s not about getting the joke. It’s about getting along.

When Robert R. Provine tried applying his training in neuroscience to laughter 20 years ago, he naïvely began by dragging people into his laboratory at the University of Maryland, Baltimore County, to watch episodes of “Saturday Night Live” and a George Carlin routine. They didn’t laugh much. It was what a stand-up comic would call a bad room.

So he went out into natural habitats — city sidewalks, suburban malls — and carefully observed thousands of “laugh episodes.” He found that 80 percent to 90 percent of them came after straight lines like “I know” or “I’ll see you guys later.” The witticisms that induced laughter rarely rose above the level of “You smell like you had a good workout.”

“Most prelaugh dialogue,” Professor Provine concluded in “Laughter,” his 2000 book, “is like that of an interminable television situation comedy scripted by an extremely ungifted writer.”

He found that most speakers, particularly women, did more laughing than their listeners, using the laughs as punctuation for their sentences. It’s a largely involuntary process. People can consciously suppress laughs, but few can make themselves laugh convincingly.

“Laughter is an honest social signal because it’s hard to fake,” Professor Provine says. “We’re dealing with something powerful, ancient and crude. It’s a kind of behavioral fossil showing the roots that all human beings, maybe all mammals, have in common.”

The human ha-ha evolved from the rhythmic sound — pant-pant — made by primates like chimpanzees when they tickle and chase one other while playing. Jaak Panksepp, a neuroscientist and psychologist at Washington State University, discovered that rats emit an ultrasonic chirp (inaudible to humans without special equipment) when they’re tickled, and they like the sensation so much they keep coming back for more tickling.

He and Professor Provine figure that the first primate joke — that is, the first action to produce a laugh without physical contact — was the feigned tickle, the same kind of coo-chi-coo move parents make when they thrust their wiggling fingers at a baby. Professor Panksepp thinks the brain has ancient wiring to produce laughter so that young animals learn to play with one another. The laughter stimulates euphoria circuits in the brain and also reassures the other animals that they’re playing, not fighting.

“Primal laughter evolved as a signaling device to highlight readiness for friendly interaction,” Professor Panksepp says. “Sophisticated social animals such as mammals need an emotionally positive mechanism to help create social brains and to weave organisms effectively into the social fabric.”

Humans are laughing by the age of four months and then progress from tickling to the Three Stooges to more sophisticated triggers for laughter (or, in some inexplicable cases, to Jim Carrey movies). Laughter can be used cruelly to reinforce a group’s solidarity and pride by mocking deviants and insulting outsiders, but mainly it’s a subtle social lubricant. It’s a way to make friends and also make clear who belongs where in the status hierarchy.

Which brings us back to the muffin joke. It was inflicted by social psychologists at Florida State University on undergraduate women last year, during interviews for what was ostensibly a study of their spending habits. Some of the women were told the interviewer would be awarding a substantial cash prize to a few of the participants, like a boss deciding which underling deserved a bonus.

The women put in the underling position were a lot more likely to laugh at the muffin joke (and others almost as lame) than were women in the control group. But it wasn’t just because these underlings were trying to manipulate the boss, as was demonstrated in a follow-up experiment.

This time each of the women watched the muffin joke being told on videotape by a person who was ostensibly going to be working with her on a task. There was supposed to be a cash reward afterward to be allocated by a designated boss. In some cases the woman watching was designated the boss; in other cases she was the underling or a co-worker of the person on the videotape.

When the woman watching was the boss, she didn’t laugh much at the muffin joke. But when she was the underling or a co-worker, she laughed much more, even though the joke-teller wasn’t in the room to see her. When you’re low in the status hierarchy, you need all the allies you can find, so apparently you’re primed to chuckle at anything even if it doesn’t do you any immediate good.

“Laughter seems to be an automatic response to your situation rather than a conscious strategy,” says Tyler F. Stillman, who did the experiments along with Roy Baumeister and Nathan DeWall. “When I tell the muffin joke to my undergraduate classes, they laugh out loud.”

Mr. Stillman says he got so used to the laughs that he wasn’t quite prepared for the response at a conference in January, although he realizes he should have expected it.

“It was a small conference attended by some of the most senior researchers in the field,” he recalls. “When they heard me, a lowly graduate student, tell the muffin joke, there was a really uncomfortable silence. You could hear crickets.”


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Monday, March 12, 2007

Journeys to the Distant Fields of Prime - New York Times

Journeys to the Distant Fields of Prime - New York Times:
March 13, 2007
scientist at work Terence Tao

Journeys to the Distant Fields of Prime

LOS ANGELES —Four hundred people packed into an auditorium at U.C.L.A. in January to listen to a public lecture on prime numbers, one of the rare occasions that the topic has drawn a standing-room-only audience.

Another 35 people watched on a video screen in a classroom next door. Eighty people were turned away.

The speaker, Terence Tao, a professor of mathematics at the university, promised “a whirlwind tour, the equivalent to going through Paris and just seeing the Eiffel Tower and the Arc de Triomphe.”

His words were polite, unassuming and tinged with the accent of Australia, his homeland. Even though prime numbers have been studied for 2,000 years, “There’s still a lot that needs to be done,” Dr. Tao said. “And it’s still a very exciting field.”

After Dr. Tao finished his one-hour talk, which was broadcast live on the Internet, several students came down to the front and asked for autographs.

Dr. Tao has drawn attention and curiosity throughout his life for his prodigious abilities. By age 2, he had learned to read. At 9, he attended college math classes. At 20, he finished his Ph.D.

Now 31, he has grown from prodigy to one of the world’s top mathematicians, tackling an unusually broad range of problems, including ones involving prime numbers and the compression of images. Last summer, he won a Fields Medal, often considered the Nobel Prize of mathematics, and a MacArthur Fellowship, the “genius” award that comes with a half-million dollars and no strings.

“He’s wonderful,” said Charles Fefferman of Princeton University, himself a former child prodigy and a Fields Medalist. “He’s as good as they come. There are a few in a generation, and he’s one of the few.”

Colleagues have teasingly called Dr. Tao a rock star and the Mozart of Math. Two museums in Australia have requested his photograph for their permanent exhibits. And he was a finalist for the 2007 Australian of the Year award.

“You start getting famous for being famous,” Dr. Tao said. “The Paris Hilton effect.”

Not that any of that has noticeably affected him. His campus office is adorned with a poster of “Ranma ½,” a Japanese comic book. As he walks the halls of the math building, he might be wearing an Adidas sweatshirt, blue jeans and scruffy sneakers, looking much like one of his graduate students. He said he did not know how he would spend the MacArthur money, though he mentioned the mortgage on the house that he and his wife, Laura, an engineer at the NASA Jet Propulsion Laboratory, bought last year.

After a childhood in Adelaide, Australia, and graduate school at Princeton, Dr. Tao has settled into sunny Southern California.

“I love it a lot,” he said. But not necessarily for what the area offers.

“It’s sort of the absence of things I like,” he said. No snow to shovel, for instance.

A deluge of media attention following his Fields Medal last summer has slowed to a trickle, and Dr. Tao said he was happy that his fame might be fleeting so that he could again concentrate on math.

One area of his research — compressed sensing — could have real-world use. Digital cameras use millions of sensors to record an image, and then a computer chip in the camera compresses the data.

“Compressed sensing is a different strategy,” Dr. Tao said. “You also compress the data, but you try to do it in a very dumb way, one that doesn’t require much computer power at the sensor end.”

With Emmanuel Candès, a professor of applied and computational mathematics at the California Institute of Technology, Dr. Tao showed that even if most of the information were immediately discarded, the use of powerful algorithms could still reconstruct the original image.

By useful coincidence, Dr. Tao’s son, William, and Dr. Candès’s son attended the same preschool, so dropping off their children turned into useful work time.

“We’d meet each other every morning at preschool,” Dr. Tao said, “and we’d catch up on what we had done.”

The military is interested in using the work for reconnaissance: blanket a battlefield with simple, cheap cameras that might each record a single pixel of data. Each camera would transmit the data to a central computer that, using the mathematical technique developed by Dr. Tao and Dr. Candès, would construct a comprehensive view. Engineers at Rice University have made a prototype of just such a camera.

Dr. Tao’s best-known mathematical work involves prime numbers — positive whole numbers that can be divided evenly only by themselves and 1. The first few prime numbers are 2, 3, 5, 7, 11 and 13 (1 is excluded).

As numbers get larger, prime numbers become sparser, but the Greek mathematician Euclid proved sometime around 300 B.C. that there is nonetheless an infinite number of primes.

Many questions about prime numbers continue to elude answers. Euclid also believed that there was an infinite number of “twin primes” — pairs of prime numbers separated by 2, like 3 and 5 or 11 and 13 — but he was unable to prove his conjecture. Nor has anyone else in the succeeding 2,300 years.

A larger unknown question is whether hidden patterns exist in the sequence of prime numbers or whether they appear randomly.

In 2004, Dr. Tao, along with Ben Green, a mathematician now at the University of Cambridge in England, solved a problem related to the Twin Prime Conjecture by looking at prime number progressions — series of numbers equally spaced. (For example, 3, 7 and 11 constitute a progression of prime numbers with a spacing of 4; the next number in the sequence, 15, is not prime.) Dr. Tao and Dr. Green proved that it is always possible to find, somewhere in the infinity of integers, a progression of prime numbers of any spacing and any length.

“Terry has a style that very few have,” Dr. Fefferman said. “When he solves the problem, you think to yourself, ‘This is so obvious and why didn’t I see it? Why didn’t the 100 distinguished people who thought about this before not think of it?’ ”

Dr. Tao’s proficiency with numbers appeared at a very young age. “I always liked numbers,” he said.

A 2-year-old Terry Tao used toy blocks to show older children how to count. He was quick with language and used the blocks to spell words like “dog” and “cat.”

“He probably was quietly learning these things from watching ‘Sesame Street,’ ” said his father, Dr. Billy Tao, a pediatrician who immigrated to Australia from Hong Kong in 1972. “We basically used ‘Sesame Street’ as a babysitter.”

The blocks had been bought as toys, not learning tools. “You expect them to throw them around,” said the elder Dr. Tao, whose accent swings between Australian and Chinese.

Terry’s parents placed him in a private school when he was 3 ½. They pulled him out six weeks later because he was not ready to spend that much time in a classroom, and the teacher was not ready to teach someone like him.

At age 5, he was enrolled in a public school, and his parents, administrators and teachers set up an individualized program for him. He proceeded through each subject at his own pace, quickly accelerating through several grades in math and science while remaining closer to his age group in other subjects. In English classes, for instance, he became flustered when he had to write essays.

“I never really got the hang of that,” he said. “These very vague, undefined questions. I always liked situations where there were very clear rules of what to do.”

Assigned to write a story about what was going on at home, Terry went from room to room and made detailed lists of the contents.

When he was 7 ½, he began attending math classes at the local high school.

Billy Tao knew the trajectories of child prodigies like Jay Luo, who graduated with a mathematics degree from Boise State University in 1982 at the age of 12, but who has since vanished from the world of mathematics.

“I initially thought Terry would be just like one of them, to graduate as early as possible,” he said. But after talking to experts on education for gifted children, he changed his mind.

“To get a degree at a young age, to be a record-breaker, means nothing,” he said. “I had a pyramid model of knowledge, that is, a very broad base and then the pyramid can go higher. If you just very quickly move up like a column, then you’re more likely to wobble at the top and then collapse.”

Billy Tao also arranged for math professors to mentor Terry.

A couple of years later, Terry was taking university-level math and physics classes. He excelled in international math competitions. His parents decided not to push him into college full time, so he split his time between high school and Flinders University, the local university in Adelaide. He finally enrolled as a full-time college student at Flinders when he was 14, two years after he would have graduated had his parents pushed him only according to his academic abilities.

The Taos had different challenges in raising their other two sons, although all three excelled in math. Trevor, two years younger than Terry, is autistic with top-level chess skills and the musical savant gift to play back on the piano a musical piece — even one played by an entire orchestra — after hearing it just once. He completed a Ph.D. in mathematics and now works for the Defense Science and Technology Organization in Australia.

The youngest, Nigel, told his father that he was “not another Terry,” and his parents let him learn at a less accelerated pace. Nigel, with degrees in economics, math and computer science, now works as a computer engineer for Google Australia.

“All along, we tend to emphasize the joy of learning,” Billy Tao said. “The fun is doing something, not winning something.”

Terry completed his undergraduate degree in two years, earned a master’s degree a year after that, then moved to Princeton for his doctoral studies. While he said he never felt out of place in a class of much older students, Princeton was where he finally felt he fit among a group of peers. He was still younger, but was not necessarily the brightest student all the time.

His attitude toward math also matured. Until then, math had been competitions, problem sets, exams. “That’s more like a sprint,” he said.

Dr. Tao recalled that as a child, “I remember having this vague idea that what mathematicians did was that, some authority, someone gave them problems to solve and they just sort of solved them.”

In the real academic world, “Math research is more like a marathon,” he said.

As a parent and a professor, Dr. Tao now has to think about how to teach math in addition to learning it.

An evening snack provided him an opportunity to question his son, who is 4. If there are 10 cookies, how many does each of the five people in the living room get?

William asked his father to tell him. “I don’t know how many,” Dr. Tao replied. “You tell me.”

With a little more prodding, William divided the cookies into five stacks of two each.

Dr. Tao said a future project would be to try to teach more non-mathematicians how to think mathematically — a skill that would be useful in everyday tasks like comparing mortgages.

“I believe you can teach this to almost anybody,” he said.

But for now, his research is where his focus is.

“In many ways, my work is my hobby,” he said. “I always wanted to learn another language, but that’s not going to happen for a while. Those things can wait.”


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