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BEIJING, April 14 (Xinhuanet) -- The discovery of a sharp-toothed dinosaur fossil in New Mexico, the United States, may bridge a gap in the evolution of the species, researchers said in Wednesday's journal Proceedings of the Royal Society B.Researchers from the Smithsonian Institution unearthed the dinosaur skull and neck vertebrae in Abiquiu, New Mexico, where it had remained buried for around 230 million years. The short snout and slanting front teeth of the find — Daemonosaurus chauliodus — had never before been seen in a Triassic era dinosaur, said Hans-Dieter Sues of the Smithsonian's National Museum of Natural History.Sues, curator of vertebrate paleontology at the museum, said the discovery helps fill the evolutionary gap between the dinosaurs that lived in what is now Argentina and Brazil about 230 million years ago and the later theropods like the famous Tyrannosaurus rex."Various features of the skull and neck in Daemonosaurus indicate that it was intermediate between the earliest known predatory dinosaurs from South America and more advanced theropod dinosaurs," said Sues."One such feature is the presence of cavities on some of the neck vertebrae related to the structure of the respiratory system," he added.The discovery suggests that there is still much to be learned about the early evolution of dinosaurs."The continued exploration of even well-studied regions like the American Southwest will still yield remarkable new fossil finds," Sues said.

BEIJING, Feb. 1 (Xinhua) -- A plane carrying Chinese nationals who were stranded in Egypt arrived at Beijing Capital International Airport Tuesday afternoon.The plane, operated by the Air China International Corporation, arrived in Beijing at 16:50 p.m. Bejing time. The second plane, operated by Hainan Airlines, will arrive in south China's Guangzhou city later Tuesday.The two planes carry a total of 480 Chinese nationals."China has attached great importance to safety of the stranded Chinese nationals since demonstrations and protests broke out in Egypt on Jan. 28," said Chinese Foreign Ministry spokesman Hong Lei at a regular news briefing.Hong said China has taken a package of emergency measures including warning against travel and an around-the-clock hotline to provide consular protection and assistance for the Chinese nationals.The spokesman said that a working taskforce, composed of officials from China's Foreign Ministry, National Tourism Administration, Ministry of Public Security and Civil Aviation Administration, are currently working with the Chinese embassy in Cairo to provide assistance to stranded Chinese in Egypt and to try to facilitate their early return to China.

LOS ANGELES, April 18 (Xinhua) -- Sugarcane has the effect of cooling temperatures, thus playing role in stemming global warming, a new study has found.Sugarcane does so by reflecting sunlight back into space and by lowering the temperature of the surrounding air as the plants " exhale" cooler water, according to the study conducted by researchers at the Carnegie Institution's Department of Global Ecology.The researchers used data from hundreds of satellite images over 733,000 square miles (about 1,173 square kilometers) in Brazil, where sugarcane is widely grown. They measured temperature, reflectivity (also called albedo), and evapotranspiration -- the water loss from the soil and from plants as they exhale water vapor.The findings showed that expansion of sugarcane in areas previously occupied by other Brazilian crops cools the local climate.Converting from natural vegetation to crop/pasture on average warmed the cerrado by 2.79 Fahrenheit (1.55 Centigrade, but that subsequent conversion to sugarcane, on average, cooled the surrounding air by 1.67 Fahrenheit (0.93 Centigrade), the researchers said in the study published in the April issue of Nature Climate Change."We found that shifting from natural vegetation to crops or pasture results in local warming because the plants give off less beneficial water. But the bamboo-like sugarcane is more reflective and gives off more water -- much like the natural vegetation," said lead researcher Scott Loarie. "It's a potential win-win for the climate -- using sugarcane to power vehicles reduces carbon emissions, while growing it lowers the local air temperature."Brazilians are world leaders in using biofuels for gasoline. About a quarter of their automobile fuel consumption comes from sugarcane, which significantly reduces carbon dioxide emissions that otherwise would be emitted from using gasoline.The researchers emphasized that the beneficial effects are contingent on the fact sugarcane is grown on areas previously occupied by crops or pastureland, and not in areas converted from natural vegetation. It is also important that other crops and pastureland do not move to natural vegetation areas, which would contribute to deforestation.So far most of the thinking about ecosystem effects on climate considers only impacts from greenhouse gas emissions. But according to co-researcher Greg Asner, "It's becoming increasingly clear that direct climate effects on local climate from land-use decisions constitute significant impacts that need to be considered core elements of human-caused climate change."

SAN FRANCISCO, March 8 (Xinhua) -- Google on Tuesday released a new stable version of its Chrome web browser, which the company said is speedier, simpler and safer."With today's stable release, even your most complex web apps will run more quickly and responsively in the browser," Tim Steele, a Google software engineer, said in a blog post announcing the release.The new version of Chrome features a simpler settings page that opens in a tab rather than a dialog box, and contains a search box showing users the settings they are looking for while they type.Users can also synchronize passwords in the browser across their computers, and will be able to encrypt those passwords for extra security.Google said that the latest Chrome browser provides additional layer of protection against malicious web pages, with the extended application of sandboxing technology.The browser can be downloaded for free, and current Chrome users will be automatically updated to the new version soon, Google said.

CHICAGO, Jan. 21 (Xinhua) -- Chinese President Hu Jintao left Chicago for home on Friday after concluding a four-day state visit to the United States, during which Hu and his U.S. counterpart Barack Obama agreed to build a China-U.S. cooperative partnership based on mutual respect and mutual benefit.President Hu, who began his visit on Tuesday, had extensive and in-depth discussions with Obama at the White House on Wednesday on major bilateral, regional and world issues.The two sides reached "important agreement on China-U.S. relations and major international and regional issues of shared interest," the Chinese president said when he and Obama met the press following their discussions."We both agree to further push forward the positive, cooperative and comprehensive China-U.S. relationship," Hu said, adding that both sides also pledged to forge "a China-U.S. cooperative partnership based on mutual respect and mutual benefit" for the benefit of the two countries and beyond.The Chinese president said he and Obama also discussed some disagreements in the economic and trade area, with both sides pledging "to continue to appropriately resolve these according to the principle of mutual respect and consultation on an equal footing."Also on Wednesday, Hu attended a state dinner and a welcome ceremony hosted by Obama.Hu told the Americans on several occasions in Washington that the purpose of his visit to the United States was "to increase mutual trust, enhance friendship, deepen cooperation and advance the positive, cooperative and comprehensive China-U.S. relationship for the 21st century."During Hu's visit, the two countries issued the "China-U.S. Joint Statement," which says "China and the United States committed to work together to build a cooperative partnership based on mutual respect and mutual benefit in order to promote the common interests of both countries and to address the 21st century's opportunities and challenges.""China and the United States are actively cooperating on a wide range of security, economic, social, energy, and environmental issues which require deeper bilateral engagement and coordination," the statement said.On Thursday, Hu called upon the U.S. Congress to continue helping the two countries boost their relations.Pursuing a healthy and steady development of China-U.S. ties is China's established policy and strategic choice, Hu stressed when meeting House Speaker John Boehner and Senate Majority Leader Harry Reid.Also on Thursday in Washington, Hu delivered an important speech at the welcome luncheon hosted by friendly organizations in the United States.To advance the sustained, sound and steady development of China-U.S. relations serves the fundamental interests of peoples of China and the United States, he said.

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