郑州矫正视力激光手术价格(郑州郑州激光手术治近视眼) (今日更新中)

NEW YORK, Oct. 14 (Xinhua) -- The iPhone 4S went on sale at Apple store on the Fifth Avenue of Manhattan in New York early Friday.An Apple store worker said people were waiting outside the store around 3 p.m. Thursday and underwent an overnight rain for an early purchase of the smart phone which started sale at 8 a.m. Friday.About 200 people were seen lining up outside the store and some of them said they would like to pay tribute to Steve Jobs, Apple's longtime CEO who died of pancreatic cancer at the age of 56 on Oct. 5."I'm a Steve's fan, iPhone 4S is the best of Steve's work. I am not going to buy iPhone 5,"Jim Bedford, who is in his 30s, said. "Maybe this is my last iPhone," he added.People left a Steve's picture, flowers and apples on the sidewalk to pay respect to Apple's co-founder. Some apples were seen inscribed such words as "Nice job" and "We will always remember you."Tom White, 50, said he had iPhone 1 and 3 and "now is the time to change a new one."The iPhone 4S is operated seven times faster than their predecessor and features an upgraded camera. Apple reported more than 1 million pre-orders for the iPhone 4S, breaking a mark set by last year's model. The phone also went on sale Friday in six other countries -- Britain,Germany,France,Australia, Canada and Japan.

CANNES, France, Nov. 3 (Xinhua) -- Chinese President Hu Jintao met here Wednesday his French counterpart Nicolas Sarkozy on bilateral ties and other issues of common concern, including the Group of 20 summit scheduled for Thursday and Friday.Hu pointed out that since the global economic recovery is now burdened by quite a few instable and uncertain factors, the international community has great expectations of the G20 Summit in Cannes."The Chinese side actively supports the French side to host the summit," Hu said, emphasizing that the G20 should continue to uphold the spirit of cooperation and send a clear and definite signal of securing growth and promoting stability to the international community through this summit.Hu expressed the hope that all relevant parties should jointly endeavor to make the Cannes summit a conference of solidarity and win-win cooperation.Sarkozy expressed his appreciation of the effort China has made to prepare for the G20 summit. He said the French side was ready to strengthen coordination and cooperation with the Chinese side and work with all other parties to push for positive results at the summit.Hu said Europe is the largest economy in the world, and there will be no global economic recovery without a recovery of the European economy.He pointed out that the package deal that the European Union (EU) struck lately demonstrates its will and determination to resolve Europe's debt problem. He hoped that the implementation of the package deal would help overcome the difficulties facing Europe and be conducive to the recovery and growth of the European economy."It is mainly up to Europe to resolve the European debt problem," Hu said."We believe that Europe has all the wisdom and capability to resolve the debt problem," he added.Sarkozy said Europe is committed to resolving the debt crisis by making its own effort and strengthening cooperation with the international community. Hu said China wants to see Europe prosper.Noting that it was the third time for him to meet Sarkozy so far this year, Hu said the two sides had a frank and in-depth exchange of views on bilateral links, world economic situation, G20 affairs and major international issues and reached many important consensuses.The development of China-France relations has maintained good momentum recently. President Hu paid a state visit to France in November last year and met Sarkozy in March and August this year when the French president visited China.Hu said China places importance on developing its relations with France and the EU. He also thanked Sarkozy for France's meticulous preparation for the G20 summit and its hospitality to global leaders.France values China's role and appreciates its focus on major international issues, Sarkozy said, adding that his country is willing to maintain close communication and consultation with China.

BEIJING, Oct. 7 (Xinhua) -- Chinese scientists are developing new methods like spraying or dropping hepatitis vaccines into people's noses to replace traditional injections, according to a leading expert on immunology.Such researches were sponsored by a key national science project, according to Wen Yumei, an academician of the Chinese Academy of Engineering, also the chairwoman of the 14th International Symposium on Viral Hepatitis and Liver Disease, which is scheduled to be held in Shanghai next July.At a press conference held here Friday for the symposium, experts believed that broad-coverage inoculations is an effective way in facilitating the country's goal in controlling Hepatitis B.China's Ministry of Health has also credited its national immunization program for having protected about 80 million people from being infected with the Hepatitis B virus (HBV) in the 19 years after 1992.Recent report showed that about 93 million Chinese are HBV carriers, accounting for more than a quarter of the world's total.

BEIJING, Oct. 27 (Xinhuanet) -- A new study shows that it's not simply a lack of willpower that explains weight regain but hormones keep one insisting on eating, a persistent biological urge. As any dieter knows, it's hard to keep weight off. Weight regain is a familiar problem for dieters. The research appears in Thursday's issue of the New England Journal of Medicine. To study what drives it, Proietto and his colleagues enrolled 50 overweight or obese patients in Australia in a 10-week diet program. On average, the participants lost almost 30 pounds in the 10 weeks - faster than the standard advice of losing a pound or two per week. Even so, they gained an average of 12 pounds back over the next year. The scientists checked the blood levels of nine hormones known to influence appetite - and found that even a year after the end of the weight-loss program, six of the hormones were still out of whack. People who regain weight should not be harsh on themselves, as eating is our most basic instinct, study author Joseph Proietto of the University of Melbourne in Australia said. It's better not to gain weight than to try to lose it.

WASHINGTON, Dec. 20 (Xinhua) -- NASA's Kepler mission has discovered the first Earth-size planets orbiting a sun-like star outside our solar system, the U.S. space agency announce Tuesday.The planets, called Kepler-20e and Kepler-20f, are too close to their star to be in the so-called habitable zone where liquid water could exist on a planet's surface, but they are the smallest exoplanets ever confirmed around a star like our sun, according to NASA.The discovery marks the next important milestone in the ultimate search for planets like Earth. The new planets are thought to be rocky. Kepler-20e is slightly smaller than Venus, measuring 0.87 times the radius of Earth. Kepler-20f is slightly larger than Earth, measuring 1.03 times its radius. Both planets reside in a five-planet system called Kepler-20, approximately 1, 000 light-years away in the constellation Lyra.Kepler-20e orbits its parent star every 6.1 days and Kepler-20f every 19.6 days. These short orbital periods mean very hot, inhospitable worlds. Kepler-20f, at 800 degrees Fahrenheit, is similar to an average day on the planet Mercury. The surface temperature of Kepler-20e, at more than 1,400 degrees Fahrenheit, would melt glass."The primary goal of the Kepler mission is to find Earth-sized planets in the habitable zone," said Francois Fressin of the Harvard-Smithsonian Center for Astrophysics, lead author of a new study published in the journal Nature. "This discovery demonstrates for the first time that Earth-size planets exist around other stars, and that we are able to detect them."The Kepler-20 system includes three other planets that are larger than Earth but smaller than Neptune. Kepler-20b, the closest planet, Kepler-20c, the third planet, and Kepler-20d, the fifth planet, orbit their star every 3.7, 10.9 and 77.6 days. All five planets have orbits lying roughly within Mercury's orbit in our solar system. The host star belongs to the same G-type class as our sun, although it is slightly smaller and cooler.

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