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SAN FRANCISCO, Dec. 15 (Xinhua) -- Microsoft on Thursday announced that it will automatically upgrade the Internet Explorer (IE) to the latest version to give Windows customers more protection against malicious software.According to the company's blog post, starting from Australia and Brazil next January, users of Windows XP, Vista and Windows 7 will get the IE updates if they have turned on automatic updating via Windows Update.Microsoft said the industry has been moving toward automatic updates as a norm since the biggest online threat these days is social engineering malware typically targeting outdated software like Web browsers.Automatic upgrades, also called silent updates for displaying no messages or windows during the progress, has been deployed by Google's Chrome and Mozilla's Firefox. It can ensure users have the newest versions of the browser, and therefore is seen as a big improvement to Internet security.According to the Microsoft Security Intelligence Report released in October, 99 percent of all attacks during the first half of 2011 came from unpatched but known vulnerabilities, and 90 percent of infections were attributed to vulnerability exploitation that had a security update available from the software vendor for more than a year.In the latest research data from Web analytics company StatCounter, Microsoft's IE has a strong lead with 40.63 percent of global browser market share, followed by 25.7 percent of Chrome and 25.23 percent of Firefox.

SHENYANG, Nov. 17 (Xinhua) -- A MD-90 aircraft left the northeastern city of Shenyang for its American home on Thursday, ending the service of the last McDonnell-Douglas jet for Chinese airlines.Chinese carriers will no longer operate MD-made jets due to growing market demands, said Lu Changchun, deputy general manager with the north China branch of China Southern Airlines, which has operated the MD-90 jet for over a decade.MD-90 jets were involved in no accidents during the decade-long-service in China, so safety concerns did not lead to their retirement, Lu said, adding about 1,000 MD-90 jets are still flying around the world.Lu, however, admitted that supply of aircraft materials was affected as the production line of MD jets shrank, after McDonnell-Douglas Cooperation was merged into Boeing in 1997.MD jets were replaced mainly because Chinese airlines need new models to accommodate air travel demands fueled by the economic boom, Lu said.The north China branch of China Southern Airlines also announced Thursday the retirement of five A300-600R planes, which are replaced by A320 family jets. China Southern Airlines began flying an Airbus A380 superjumbo in China in October.China's domestic air travel market is predicted to grow 13.9 percent annually by 2014 and transport 379 million domestic air passengers, which will make the country the world's second-largest air travel market after the United States, according to a report released by the International Air Transport Association.Back in the 1990s, a Shanghai-based aircraft maker assembled two MD-90 jets in China, Lu said, adding the two jets retired this year.Change of jets model serves the strategic transformation of China Southern Airlines and meets the market demands, Lu said.Li Jiaxiang, chief of China's civil aviation administration, estimated that over 1.5 trillion yuan (235 billion U.S. dollars) will be invested in the civil aviation industry by 2015, adding about 2,000 aircraft to the country's fleet.Commercial Aircraft Corporation of China, producer of China's first self-developed jumbo jet, the C919, has announced that it will complete the design for the passenger plane in 2012. The jet is expected to take off in 2014 and put into service in 2016.

SANTO DOMINGO, Jan. 11 (Xinhua) -- The Dominican Republic and Haiti Wednesday launched a joint plan aimed at eliminating cholera, which has claimed more than 7,000 lives in both countries since October 2010.The efforts were backed by the World Health Organization (WHO), the Pan American Health Organization (PAHO), and the United Nations International Children's Emergency Fund (UNICEF), Dominican officials said.The plan, "Call to action: the Hispaniola without cholera", aims to improve sanitary and living conditions of the Haiti people who face herculean reconstruction work following a devastating earthquake in the country on Jan. 12, 2010, that killed 220,000 people and displaced over 1 million.Cases of cholera, an infection that causes severe diarrhea that can lead to dehydration and death, first appeared in Haiti in October, 2010.The epidemic has so far killed more than 7,000 people and left nearly 500,000 more sick in Haiti.It also killed 135 people in the Dominican Republic as of September 2011, according to Dominican health authorities.Some 500 million U.S. dollars will be invested in projects related to sanitization and the construction of infrastructure that has to do with waterworks in both nations in the long term.

WASHINGTON, Nov. 24 (Xinhua) -- A new study suggests that the rate of global warming from doubling of atmospheric carbon dioxide may be less than the most dire estimates of some previous studies.Authors of the study, which was funded by the National Science Foundation and published online on Thursday in the journal Science, say that global warming is real and that increases in atmospheric CO2 will have multiple serious impacts. However, the most Draconian projections of temperature increases from the doubling of CO2 are unlikely."Many previous climate sensitivity studies have looked at the past only from 1850 through today, and not fully integrated paleoclimate date, especially on a global scale," said Andreas Schmittner, an Oregon State University researcher and lead author on the Science article. "When you reconstruct sea and land surface temperatures from the peak of the last Ice Age 21,000 years ago -- which is referred to as the Last Glacial Maximum -- and compare it with climate model simulations of that period, you get a much different picture.""If these paleoclimatic constraints apply to the future, as predicted by our model, the results imply less probability of extreme climatic change than previously thought," Schmittner added.Scientists have struggled for years trying to quantify "climate sensitivity" -- which is how the Earth will respond to projected increases of atmospheric carbon dioxide. The 2007 IPCC report estimated that the air near the surface of the Earth would warm on average by two to 4.5 degrees (Celsius) with a doubling of atmospheric CO2 from preindustrial standards. The mean, or " expected value" increase in the IPCC estimates was 3.0 degrees; most climate model studies use the doubling of CO2 as a basic index.The researchers based their study on ice age land and ocean surface temperature obtained by examining ices cores, bore holes, seafloor sediments and other factors. When they first looked at the paleoclimatic data, the researchers only found very small differences in ocean temperatures then compared to now."Our study implies that we still have time to prevent that from happening, if we make a concerted effort to change course soon," said Schmittner.

VIENNA, Oct. 7 (Xinhua) -- A sculpture of late Soviet cosmonaut Yuri Gagarin was presented to the UN Office in Vienna (UNOV) Friday to celebrate "50 Years of Human Spaceflight," the theme of the World Space Week 2011.In 1961, Gagarin completed an orbit around the Earth aboard the Vostok 1 spacecraft, serving as a pioneer of human spaceflight.The sculpture is a gift from the Russian government and would be placed at the Permanent Exhibit of the United Nations Office for Outer Space Affairs (UNOOSA).Attendants of the ceremony include UNOV Director-General Yury Fedotov, UNOOSA Director Mazlan Othman and Head of the Russian Permanent Mission Vladimir Voronkov."Outer space is one of the most exciting and challenging topics, and perhaps of all the important topics on the agenda of the United Nations, none quite captures our imagination like outer space," Othman said in her statement.Meanwhile, speaking highly of Gagarin's achievement 50 years ago, Fedotov stressed that the purpose of the development and utilization of outer space must be to the benefit of all mankind.The UN official said that relevant UN agencies would provide technical assistance to all countries to develop outer space and ensure the benefits in peaceful purpose.On Dec. 6, 1999, the 55th United Nations General Assembly declared the World Space Week to be held every year during Oct. 4-10.

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