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SAN FRANCISCO, March 20 (Xinhua) -- Boeing's 747-8 Intercontinental took to the sky for the first time on Sunday, a milestone for the U.S. aviation giant's latest and biggest passenger plane.Live webcast by Boeing showed that a 747-8 Intercontinental touched down at around 2:25 p.m. PST (2125 GMT) Sunday at the Boeing Field airport in Seattle in the U.S. states of Washington, after wrapping up the airplane's inaugural flight that lasted about four and half hours.During the test flight, the pilots did some system and function checks and everything went fine, according to the webcast.The new 747-8 Intercontinental can carry 467 passengers in a three-class configuration, said Boeing, which touted the new wide- body jet airliner as the only airplane in the 400-500 seat market.The Boeing 747-8 Intercontinental takes off on its maiden flight from Paine Field, in Everett, Washington, March 20, 2011. The 747-8 Intercontinental willseat 467 passengers, 51 more than the latest model of the classic 747, and burn less fuel while offering passengers more comfort, the U.S. planemaker says.Using 787-technology GEnx engines, the airplane will be quieter, produce lower emissions and achieve better fuel economy for airlines, Boeing said.The airplane also features a new wing design and an upgraded flight deck. Its interior incorporates features from the Boeing 787 Dreamliner including a new curved, upswept architecture that will give passengers a greater sense of space and comfort, while adding more room for personal belongings.Boeing has noted that compared with its predecessor, the 747- 400, the 747-8 Intercontinental provides 16 percent better fuel economy, 16 percent less carbon emissions per passenger and generates 30 percent smaller noise footprint, while carries 51 more passengers.Boeing in February said that Korean Air, VIP customers and launch customer Lufthansa have ordered a total of 33 747-8 passenger planes, with the first delivery scheduled for the fourth quarter of this year.It is reported that the 747-8 Intercontinental has a list price of about 317 million U.S. dollars.Earlier in March, Boeing announced that it has signed an agreement with Air China for the purchase of five 747-8 Intercontinental jetliners.

BEIJING, Jan. 23 (Xinhua) -- Three years ago when Jason Shen stood on the Times Square for the first time, he didn't expect that a video clip he produced could be shown at the "Crossroads of the World"."In the eyes of an advertisement specialist, Times Square is a dream, where the biggest screen was as tall as a four-storey building and every day about 70,000 passengers could see the ads," said the chief executive officer of Shanghai Lowe & Partners advertising company.The company won the bidding of producing China's national publicity video in November 2009."Our biggest challenge was how to show a real China within just 60 seconds," he recalled.After brainstorming, his team agreed that the main theme should be human beings."The persons appearing in the video clip were like messengers to convey China's friendliness to the world," he said.The video was a step China takes in its foreign relations efforts, and a chance for Shen individually to fulfill a dream.Working as the chief executive producer, Shen gave some details in the filming of the video."Famous actress Zhang Ziyi was a very amiable person," he said. "She was very cooperative and the dress she wore was decided by arranged by our team."John Woo was excited hearing about the plan to make such a national publicity video work. "He told me that it was like reviewing the excitement when hearing China won the bidding of the 2008 Beijing Olympics."Deng Yaping, the four-time Olympic table tennis champion, was not sure how to pose in front of the camera."I told her that she just need to smile like when Ex-Olympic Chief Juan Antonio Samaranch put the gold medal around her neck," Shen said.All celebrities agreed to appear in the video free-of-charge.The smiling faces at the end of the 60-second video were gathered at the Shanghai World Expo, when it was hot and the temperature reached 40 degrees Celsius.But Shen and his team were left with some pity. "It was not easy to have six astronauts including Yang Liwei in the filming. But we could have made the video more lively by asking them to change more poses," he said.After the video was aired, Shen was sometimes questioned if the 59 persons in the short video could represent the entire of China."A good advertisement should give audiences strong visual impact and be enlightening," he said. "I believe that the celebrities and ordinary people from all walks of life could represent a mild and elegant image of China."The 60-second national publicity video is shown 15 times every hour on the Times Square from January 17 to February 14. It is expected to be aired on CNN from January 17 to February 13.A 15-minute documentary produced by the team, which is to be used at important events of Chinese embassies, was also finished. It will show the beautiful scenery of China.

LOS ANGELES, May 23 (Xinhua) -- NASA's Gravity Recovery And Interior Laboratory spacecraft (Grail) will begin final preparations for a launch on a Moon mission in late summer, the Jet Propulsion Laboratory (JPL) said on Monday.The dynamic duo will orbit the moon to determine the structure of the lunar interior from crust to core and to advance understanding of the thermal evolution of the moon, according to JPL in Pasadena, Los Angeles.After arriving at the Astrotech payload processing facility in Titusville, Florida last week, the Grail twins, known as Grail-A and Grail-B, were removed from their shipping containers Monday. Later this week, they will begin functional testing to verify their state of health, said JPL.The twins were shipped from Lockheed Martin Space Systems, Denver.Over the next four months at the Astrotech facility, the spacecraft will undergo final testing, fueling and packaging in the shroud that will protect them as the Delta II launch vehicle lifts them into space. The spacecraft will then be transported to the Cape Canaveral Air Force Station for installation atop the rocket that will carry them toward the moon, JPL said."We're only a few full moons away from a mission that will reveal clues not only into the history of the moon and Earth, but will provide important data for future lunar exploration," said Maria Zuber, Grail's principal investigator, based at the Massachusetts Institute of Technology.Grail will be carried into space aboard a United Launch Alliance Delta II Heavy rocket lifting off from Launch Complex-19 at the Cape Canaveral Air Force Station in Florida. The launch period opens Sept. 8, 2011, and extends through Oct. 19. For a Sept. 8 liftoff, the launch window opens at 5:37 a.m. PDT (8:37 a.m. EDT) and remains open through 6:16 a.m. PDT (9:16 a.m. EDT).Grail-A and Grail-B will fly in tandem orbits around the moon for several months to measure its gravity field in unprecedented detail.The mission will also answer longstanding questions about Earth' s moon, and provide scientists a better understanding of how Earth and other rocky planets in the solar system formed, according to JPL, which manages the Grail mission.

WASHINGTON, April 11 (Xinhua) -- In the first clinical trial of gene therapy for treatment of intractable pain, U.S. researchers from the University of Michigan's Department of Neurology observed that the treatment appears to be able to provide substantial pain relief.In a study published online in the Annals of Neurology and seen on Monday, the researchers showed that the novel agent NP2 is safe and well-tolerated. In addition, measures of pain in the treated patients suggested that NP2 may provide a substantial analgesic effect.NP2 is a gene transfer vector that expresses the naturally- occurring opioid peptide enkephalin. In preclinical work in animals, David Fink, chair of the Department of Neurology, and his coworkers had demonstrated that injection of NP2 into the skin reduces pain in models of pain caused by nerve damage, inflammation or cancer.In the clinical trial, 10 patients with unrelenting pain caused by cancer were injected with the gene transfer agent in the area of skin related to the location of pain."The concept underlying this therapeutic approach is that injection of NP2 into the skin results in uptake into the nervous system and the production and release of a pain-relieving chemical in a controlled site in the pain pathway," says Fink. "In the study, patients who received the low dose of vector showed little reduction in pain; patients receiving the higher doses showed a greater than 80 percent reduction in pain over the course of four weeks following treatment."Fink's laboratory has been working on the use of modified herpes simplex virus-based vectors that are taken up by sensory nerves following skin injection to develop therapies for diseases of the nervous system for more than 20 years. Patents related to this technology have been exclusively licensed by Diamyd Medical, a publicly-traded Swedish biotechnology company that sponsored the trial, and the human-grade vector NP2 was produced by Diamyd, Inc, the U.S. subsidiary of Diamyd Medical.A phase 2 trial to compare NP2 to a placebo control has already been initiated under sponsorship from Diamyd.

BEIJING, May 12 (Xinhuanet) -- Italian archaeologists are digging the remains of Lisa Gherardini, a 16th-century woman who is widely believed to be the model for the famous portrait Mona Lisa, AFP reported on Wednesday.The team of historians say they will try to find the remains using geo-radar equipment and then try to re-create a likeness of what the woman, Lisa Gherardini, would have looked like to compare her to Leonardo Da Vinci's Mona Lisa.Gherardini (1479-1542), also known by her married name as Lisa del Giocondo, was the wife of a Florentine silk merchant and is widely believed to have been the model for the  portrait that now hangs in the Louvre in Paris.But the issue has never been settled definitively and mystery still shrouds the model's enigmatic expression and other details of the portrait.