Hiển thị các bài đăng có nhãn first. Hiển thị tất cả bài đăng
Hiển thị các bài đăng có nhãn first. Hiển thị tất cả bài đăng

Thứ Tư, 15 tháng 2, 2012

China's Likely Next First Lady Is a Famous Singer

Peng Liyuan is married to Xi Jinping, who is likely to be China’s next leader.

As my colleagues Mark Landler and Edward Wong report, the man who is expected to be China’s next leader, Vice President Xi Jinping, arrived in the United States on Tuesday for a tour meant to burnish his credentials as a statesman and pave the way for his likely elevation later this year.

But he came without a famous supporter: his wife, the celebrity folk singer Peng Liyuan.

It is not uncommon for Chinese leaders to leave their wives at home, but a report in The Wall Street Journal speculated that Ms. Peng stayed home in part to avoid outshining her husband as he steps onto the world stage. As the BBC noted, “When he was first announced as China’s next leader-in-waiting, he was already vice president, but people still joked: ‘Who is Xi Jinping? He is Peng Liyuan’s husband.’”

Ms. Peng, who holds the rank of major general in the army, has kept a low profile since her husband’s promotion into China’s senior leadership. Ms. Peng is Mr. Xi’s second wife.

The stylistic contrast between the likely next first lady and the current one, Liu Yongqing, can be seen in a photo search. While glamorous shots predominate for Ms. Peng, Ms. Liu is most often seen in formal political settings.

The Web also has numerous videos of Ms. Peng. In one posted to China Central Television’s music channel last year, Ms. Peng sings in uniform as more than a dozen women in red dance behind her. Another production had her in a flowing red and pink gown:

In another clip, Ms. Peng sings the “Laundry Song,” a traditional song of solidarity between the army and the people and one that is sung by many female Tibetan singers, according to High Peaks Pure Earth, a blog that tracks news from Tibet. In the song, Tibetans express gratitude for the Chinese army. The current spate of self-immolations by Tibetan monks indicates that the relationship is a bit more complicated.

According to a Newsweek profile from last year, rather than shying away from Ms. Peng’s celebrity, the Communist Party has sought to capitalize on her fame and association with the army.

She is called a “soldier of the arts” in a state news agency profile page, and her entry on Baidu Knows, China’s officially sanctioned response to Wikipedia, lists her many trips to “various revolutionary districts, impoverished mountainous regions, and minority neighborhoods,” according to The New Yorker’s culture blog. Ms. Peng has also been put forward as a celebrity ambassador for issues of public health, including AIDS.

What the official presentation of the couple omits, the New Yorker piece notes, is “how exactly did the stout Party cadre woo his megawatt wife?”


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Thứ Năm, 9 tháng 2, 2012

The world's first 3D-printed prosthetic jaw

A breakthrough transplant gave an 83-year-old the ability to eat and speak again after a chronic bone infection ate away at her lower jaw

Here's something to chew on. Doctors and engineers in the Netherlands have successfully performed a prosthetic jaw transplant for an 83-year-old Belgian woman with the help of a 3D printer. The innovative procedure helped the hospital cut costs while reducing the amount of time spent on patient care. Are we entering a new era for prosthetics? Here, a brief guide:

Why did the woman need a transplant?
The patient had developed a chronic bone infection in her lower jaw, and reconstructive surgery was "risky" because of her age, says BBC News. So doctors opted to remove her mandible entirely and use a transplant, which involved "articulated joints, cavities to promote muscle attachment, and grooves to direct the regrowth of nerves and veins."

SEE ALSO: Bacon: A 'surprising' cure for nosebleeds?

Why use a 3D printer?
Three-dimensional printers are capable of building physical objects from scratch. (Read a primer here.) "You can build parts that you can't create using any other technique," says Ruben Wauthle of LayerWise, the 3D printing firm enlisted for the procedure. "For example you can print porous titanium structures which allow bone in-growth and allow better fixation of the implant, giving it a longer lifetime." 

How did the team print this jaw?
The team used thin, melted levels of titanium powder to "print" the prosthetic jaw, layer by layer, into a three-dimensional object. "It took 33 layers to build 1mm of height," says Wauthle, "so you can imagine there were many thousand layers necessary to build this jawbone." After the piece was finished printing, it was polished in a bioceramic coating of artificial bone, weighing in at 107 grams. That's about one-third heavier than her old jawbone, but doctors said her face muscles will get used to the added weight.  

SEE ALSO: Do women feel more pain than men?

And the procedure?
Attaching the woman's new jaw took just four hours, says BBC News, "a fifth of the time required for traditional reconstructive surgery." And the prosthetic fit the patient "perfectly," says Monica DyBuncio at CBS News. "The surgery restored not just function but also the contour of the face in the patient." A day after the surgery, the 83-year-old could already speak again.

So what's next? Is this the future?
This treatment may have been the first of its kind, but the team expects "similar techniques to become more common over the coming years," says BBC News. And that's just scratching the surface of what 3D printing can offer the medical world. "At the moment we use metal powder for printing," says Wauthle. "To print organic tissue and bone you would need organic material as your 'ink.' Technically it could be possible — but there is still a long way to go before we're there."

SEE ALSO: The 'mysterious' Tourette-like syndrome plaguing a N.Y. town

Sources: BBC News, CBS News, PC World, Slate

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