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BEIJING, Nov. 5 (Xinhua) -- Chinese President Hu Jintao's speech at the sixth Group of Twenty (G-20) Summit has drawn positive comments from the international community, which praised the address for proposals for efforts to maintain world economic growth and financial stability.In the speech delivered at the Nov. 3-4 summit in Cannes, France, Hu put forward a package of proposals urging the world's major economies to work together to promote growth and financial stability."It is imperative that we stand on a higher plane, transcend differences on specific issues, move beyond short-term considerations, and jointly seek ways to overcome the crisis and sustain development," Hu told the summit.Chinese President Hu Jintao gives a speech at the Group of Twenty (G20) summit in Cannes, France, Nov. 4, 2011."At this critical moment, the G-20 must work to address the key problems, boost market confidence, defuse risks and meet challenges and promote global economic growth and financial stability," Hu said.Reporting developments at the G-20 summit, the Reuters news agency quoted Hu as saying in the speech: "As the premier forum for international economic cooperation, the G20 must continue to demonstrate the spirit of standing together in times of adversity and pursuing win-win cooperation. At this critical moment, the G20 must work to address the key problems, boost market confidence, defuse risks and meet challenges, and promote global economic growth and financial stability."Reuters also said Hu hopes to send a clear message of ensuring economic development and boosting stablity to the international community.The French newspaper Le Figaro reported that Hu expressed confidence that Europe could overcome its debt crisis.The website of Estado de Sao Paulo, Brazil's daily newspaper, quoted Hu as saying that China has made contributions to world economic growth, and that an imperative task for the G-20 summit was to maintain economic growth.At the summit, Hu said that a priority for world leaders is to maintain robust economic growth, and called attention to the maintenance of domestic growth in China, which would benefit the world economy, the newspaper reported.The newspaper also cited Hu as calling for advancing reform of the international monetary system in a steady manner, expanding the use of the Special Drawing Rights of the IMF, reforming the SDR currency basket, and building an international reserve currency system with stable value, rule-based issuance and manageable supply.O Globo newspaper of Brazil reported that in the speech, Hu demanded that Western countries stop exerting pressures on emerging economic powers to compel them to appreciate their currencies.The newspaper quoted Hu as saying: "To keep asking emerging markets to revalue their currencies and reduce exports will not lead to balanced growth. On the contrary, it would only plunge the global economy into a 'balanced recession' and make sustainable growth impossible."In a related development, Robert Zoellick, president of the World Bank, issued a statement on the G-20 summit on Friday, saying: "The G-20 today presented an agenda to restore confidence in the global economy through its commitment to reinvigorate growth, create jobs, ensure financial stability, and make globalization more sustainable and inclusive."The global economy is still very much at risk from faltering economies in developing countries, and the Eurozone deal has bought some time, and the challenge is how to use the time, Zoellick said."I believe it would be very useful if the G20 leaders can send a strong signal on follow-through after the Eurozone announcement so as to sustain and build confidence," Zoellick noted.

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.

WASHINGTON, Jan. 19 (Xinhua) -- New research published this week in Nature Medicine indicates that targeted drugs such as gefitinib might more effectively treat non-small cell lung cancer if they could be combined with agents that block certain microRNAs.The study, led by investigators with the Ohio State University Comprehensive Cancer Center, shows that overexpression of two genes called MET and EGFR causes the deregulation of six microRNAs, and that this deregulation leads to gefitinib resistance.The findings support the development of agents that restore the levels of these microRNAs. It offers a new strategy for treating non-small cell lung cancer, which is responsible for about 85 percent of the 221,000 lung-cancer cases and 157,000 deaths that occur annually in the United States. It also suggests that measuring the expression levels of certain microRNAs -- those controlled by the MET gene -- might predict which lung-cancer cases are likely to be resistant to gefitinib.Epidermal growth factor receptor (EGFR) is frequently overexpressed in non-small cell lung cancer, and this leads to uncontrolled cell proliferation. Gefitinib selectively inhibits EGFR activation and triggers cancer cells to self-destruct by apoptosis. However, non-small cell lung cancer cells inevitably develop resistance to the drug. The study reveals how this resistance occurs."Our findings suggest that gefitinib resistance that is caused by MET overexpression is at least partly due to miRNA deregulation, " says principal investigator Carlo Croce.

VIENNA, Nov. 25 (Xinhua) -- China is to further help the least developed countries (LDCs) in their development effort through zero-tariff treatment and other measures, Yu Jianhua, China's Assistant Commerce Minister said here Friday.Addressing a LDCs Ministerial Meeting in Vienna, Yu said China will focus on six concrete measures to advance the implementation of the Programme of Action (IPoA), adopted by the Fourth United Nations Conference on LDCs in Istanbul in May.First, as announced by Chinese president Hu Jintao during the G20 summit in Cannes, China would, in the context of South-South cooperation, give zero-tariff treatment to 97 percent of the tariff items of exports to China from the LDCs that have diplomatic relations with China.Second, tilt foreign aid further to the LDCs.Third, carry out cooperation in livelihood projects in the LDCs, including hospital, school, domestic water use and clear energy.Fourth, strengthen agricultural cooperation with the LDCs, including the increase of food aid, dispatching agricultural and technical experts.Fifth, strengthen personnel education in the LDCs to build capacity for self-development.Sixth, continuously promote the establishment of economic and trade cooperation zone in the LDCs by Chinese companies.Yu said that debt crisis in some countries, turmoil in financial markets, inflation pressure in emerging countries; extreme weather and recurrent natural disasters have brought enormous harm to the economies of the LDCs.In this situation, the global community should stand united to give more supports to the LDCs, he stressed.For a long time, China has actively supported the LDCs, under the framework of the South-South Cooperation, through economic and technical aids, debt reduction and personnel training and increase of imports from these countries, he said.Meanwhile, Yu praised the unique role of the UN Industrial Development Organization (UNIDO) in implementing the IPoA, helping structural transformation in the LDCs and promoting the sustainable development.He also said that the Chinese government would continue to support the UNIDO and help the LDCs develop their economies in an all-round way.

BEIJING, Jan. 10 (Xinhuanet) -- Conflicts among hundreds of scalpers raring to stock up on the new iPhone 4S are casting a shadow over the gadget's launch on the Chinese mainland on Friday.Over the weekend, scalpers from two groups bickered and shoved each other when standing in line to purchase iPhone 4 at Apple's Sanlitun store, said witnesses.Workers from two Apple stores in Beijing told China Daily the stores have not started online bookings for the iPhone 4S so far."More than 1,000 of us have gathered to buy all the available iPhone 4 this morning," said a scalper hawking the phone outside the Sanlitun store on Sunday."We'll come again on Friday for iPhone 4S. You'll have no hope of getting an iPhone 4 or 4S from the store, but only from us."The scalpers are asking 4,450 yuan (705 U.S. dollars) for an 8-gigabyte iPhone 4, and 5,450 yuan for a smuggled iPhone 4S. Apple sells an 8-gigabyte iPhone 4 on the mainland for 3,988 yuan.An Apple employee at the Sanlitun store who declined to give her name told China Daily on Monday that the store was aware the scalpers may be planning to besiege the iPhone 4S launch, and the store has prepared for that.Calls to the public relations office of Apple China went straight to voice mail.Police of the Sanlitun police station refused China Daily's interview request.An officer of the property management company of the Sanlitun Village shopping mall, where the store is located, said on Sunday they had not been informed about the weekend fracas outside of the Apple store.But on Monday afternoon, staff members of the company dispersed the scalpers by sealing off part of the store's entrance.Workers at the Sanlitun store and property management staff confirmed two groups of scalpers fought on Saturday afternoon and Sunday when jumping the line or stopping each other to pay to get an iPhone 4.Since October 2010, Apple has ceased direct sales of iPhone 4 at its retail outlets in Beijing and Shanghai and is only accepting online orders or reservations and schedules pick-up at stores to curb rampant scalping.But the registration system for reserve and pick-up has become "momentarily unavailable because of heavy traffic volume" in recent days, said Apple's website.A scalper in his 30s outside the Sanlitun store boasted they had "hacked" Apple's reservation page. He described himself an "unofficial salesman" of Apple.Defending the actions of scalpers that lead to consumers having to pay more, he said "it's not our fault but Apple's, because they put too few products in the mainland market."This is not the first time scalpers have targeted Apple products.Two men and two women suffered minor injuries outside the Sanlitun store during a clash between a worker and angry customers as Apple fans waited to buy iPhone 4 and the newly released iPad 2 in May 2011.According to reports, the incident started when a worker confronted an alleged scalper for jumping the line. This led to a verbal conflict in which the alleged scalper was thrown against the corner of an outside wall, causing injuries to his face and wrist