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BEIJING, March 29 (Xinhuanet) -- Tickets for Apple's annual World Wide Developer Conference (WWDC) 2011 have already been sold out ten hours after the event was announced Monday, according to media reports.It is the first time the event sold out the same day it was announced. Last year, the conference sold out in eight days.WWDC 2011, with the tickets priced at 1599 U.S. dollars, will run from June 6 till June 10 at the Moscone West conference center in San Francisco.This year's speedy turnaround is probably because of a rumored double-focus on iOS and Mac OS."At this year's conference we are going to unveil the future of iOS and Mac OS," Philip Schiller, Apple's senior vice president of Worldwide Product Marketing, said in a press release."If you are an iOS or Mac OS X software developer, this is the event that you do not want to miss."The event will feature more than 100 technical sessions presented by Apple engineers on Application Frameworks; Graphics, Media and Games; Developer Tools; Internet and Web, and Core OS.

RIO DE JANEIRO, March 25 (Xinhua) -- The number of dengue fever cases in Rio de Janeiro city this year has already surpassed 10,000, local health authorities said on Friday.According to the city's Health Secretariat, in less than three months, the number of confirmed dengue fever cases in Rio reached 10,158, exceeding the figures registered in the entire years of 2009 (2,723) and 2010 (3,120).In Rio de Janeiro state, the number of confirmed dengue fever cases reached 20,150, and the death toll rose to 18.This week, the first two cases of type-4 dengue fever in Rio de Janeiro state were confirmed in the city of Niteroi. The type-4 dengue fever is not more dangerous than the other types, but as the disease had not been registered in the region before, the local population has no immunity to it.As there are four different types of dengue fever, a person can develop the disease several times.The last epidemic of dengue fever in Rio de Janeiro state occurred in 2008 when 174 people died of the disease and some 250,000 cases of dengue were registered.

N'DJAMENA, Feb. 16 (Xinhua) -- Chadian President Idriss Deby Itno said Wednesday while meeting visiting Chinese Foreign Minister Yang Jiechi that his country is willing to expand cooperation with China in infrastructure building, agriculture, health care and other fields.During the meeting with Yang, who arrived here Tuesday for an official visit, the president said the Chadian-Chinese relations are based on equality, mutual respect and noninterference in each other's interior affairs. He said China has successfully completed a number of aid projects in Chad, which greatly facilitated the social and economic development of the African country.Deby said Chad is willing to boost cooperation with China in such areas as infrastructure construction, agriculture and health care, and hopes to strengthen coordination with China on international affairs.For his part, Yang said Chad has undertaken the path of national reconciliation, political stability and social progress under the leadership of President Deby, and has made significant achievements in economic development and improvement of the welfare of the Chadian people.He said bilateral relations are developing rapidly since the re-establishment of diplomatic ties, with cooperation and exchanges at different levels significantly increased. The two sides have improved mutual political trust, supported each other on matters regarding each other's core interests, and seen continuous progress in trade and economic cooperation, said the foreign minister.Yang said China sees Chad as an important partner in Africa, and China is willing to further boost mutual political trust with Chad, expand trade and cooperation in infrastructure building, telecommunications as well as education sectors.The visiting Chinese FM also met with his Chadian counterpart Moussa Faki Mahamat Wednesday on further improving bilateral relations and cooperation.

WASHINGTON, Jan. 20 (Xinhua) -- Officials from China and the United States on Thursday signed a new agreement to support panda breeding, research and conservation efforts by the two countries, an exciting news for numerous American fans of the cute animals.Zang Chunlin, Secretary General of the China Wildlife Conservation Association, and Dennis Kelly, Director of the U.S. Smithsonian's National Zoo, signed the Giant Panda Cooperative Research and Breeding Agreement.Under the agreement, a pair of giant pandas, Mei Xiang and Tian Tian, will remain at the National Zoo in Washington D.C. for five more years.Also in attendance at the signing ceremony at the National Zoo was Chen Naiqing, wife of China's Ambassador to the U.S. Zhang Yesui, U.S. Secretary of the Interior Ken Salazar and Mary Kaye Huntsman, wife of U.S. Ambassador to China Jon Huntsman.On behalf of the Chinese embassy and Ambassador Zhang, Chen expressed appreciation to the National Zoo for taking care of these giant pandas and to all American people for their love for them."Although the weather is cold today, the friendship between our people keeps us warm," she said. "I am confident that through joint efforts, our cooperation will grow, our friendship will deepen, and the future will be even brighter."The first two years of the new agreement, effective immediately through Dec. 5, 2015, include a cooperative study involving reproductive experts from the China Conservation and Research Center for the Giant Panda in Wolong and the Smithsonian's Conservation Biology Institute to oversee the breeding of Mei Xiang and Tian Tian."I am proud that this agreement not only ensures that visitors to the zoo will continue to be able to visit and learn about these beautiful animals, but also provides a strong platform for improving the conservation of wild pandas and their habitat in China," said Salazar.He said those giant pandas have "long symbolized the close partnership the United States has with China as we work together to conserve and recover one of the world's most endangered species in the wild."Mei Xiang and Tian Tian have lived at the Smithsonian's National Zoo since Dec. 6, 2000. Both pandas were born in Wolong, China and had parents that were wild born. Mei Xiang, which means "beautiful fragrance," will turn 13 on July 22 and Tian Tian, meaning "more and more," will turn 14 on Aug. 27.The current pair has not produced a cub since 2005, when Tai Shan, a male, was born. Tai Shan went back to China in February, 2010.

BEIJING, Feb. 25 (Xinhua) -- Chinese Vice Premier Li Keqiang on Thursday ordered local governments to increase funding for affordable housing projects, stressing that the construction of 10 million units was a mandatory task that must be fulfilled this year.Speaking at a national conference on affordable housing for low and middle income groups, Li said that the construction of 10 million affordable housing units this year is of great significance for the government to stabilize public expectations, control housing prices, improve people's lives and boost domestic consumption."Housing is imperative for people's lives and local governments must waste no time in beginning the construction of 10 million affordable housing units this year and putting them into service as early as possible," Li said.To facilitate the government's subsidized affordable housing projects, Li said that local governments should ensure basic market supply with small units and guide the public to "reasonable consumption."More efforts are also needed to develop low-rent public housing and satisfy the demands of residents for affordable public housing, Li said. To support the construction of affordable housing, local governments can use tax breaks, determine the rent for public housing reasonably and finance construction projects in different ways, such as bank loans and social investment, he added.Li also called on local governments to increase land supplies for common commercial housing construction. The vice premier called on authorities to ensure transparency and fairness in the distribution of affordable housing units to benefit low-income groups who are in need.He stressed the need to discourage house purchases for the purposes of investment and speculation and to increase the supply of common commercial apartments and strictly implement the central government's macro control policies for the real estate market.The Chinese central government signed strict agreements with provincial governments to guarantee the construction of 10 million government-subsidized apartments this year. The target of building 10 million government-subsidized apartments is 72.4 percent more than last year, according to official figures.China's affordable housing provisions are divided into different categories, including "economic housing" that are sold below market prices, "price-capped housing," government-owned "low-rent housing" for extremely poor residents and "public-rent housing" for a wider range of people.