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XI'AN, Nov. 20 (Xinhua) -- Fish in Hongjiannao Lake, China's largest desert freshwater lake, are teetering on the verge of extinction, according to local fishery authorities."The fish in Hongjiannao have nearly vanished," said Li Weiping, the head of a fish monitoring station in northwest China's Shaanxi province.As the lake continues to shrink, its water has become more salty and its pH reading has reached 9.6, while the maximum reading suitable for fish is 8.5, according to Li.The lake has gradually lost the water that it used to get from underground streams and rivers, Li said, adding that excessive coal mining around the lake has changed the way water flows underground. Two reservoirs have been built on two rivers near the upper reaches of the lake, preventing river water from flowing into the lake.The lake's water level has plunged by 20 to 30 centimeters every year. Its total surface area has been reduced to 41.8 square km, down from 67 km in 1996.

BEIJING, Jan. 1 (Xinhua) -- Chinese President Hu Jintao and his South Korean counterpart Lee Myung-bak exchanged new year greetings Sunday and announced the start of the "China-South Korea Friendly Exchange Year".In his message, Hu spoke positively of the relations between the two countries. Seizing the opportunity of the 20th anniversary of the establishment of the China-South Korea diplomatic relations, China is willing to work together with South Korea, by launching various exchange programs, to further promote mutual understanding and friendship between the two peoples, deepen communication and cooperation in all sectors, and push for constant progress of the bilateral relationship, Hu said.For his part, Lee said on the basis of the accomplishments achieved over the two decades of the bilateral diplomatic ties, South Korea looks forward to joining hands with China to build a better future for the bilateral relationship.

ROME, Dec. 6 (Xinhua) -- China is playing its part in projects of the United Nations to improve global food security under the framework of South-South Cooperation (SSC), the UN Food and Agriculture Organization (FAO) said on Tuesday.FAO recently co-signed two new tripartite agreements with China, Liberia and Senegal respectively to support implementation of a series of food security initiatives and projects in Liberia and Senegal, the organization said in a press release.The Rome-based food agency said the agreements were signed in the context of the Strategic Alliance between FAO and China on SSC in support of programs for food and nutrition security in selected countries.The funding provided through the new agreement comes from a FAO-China Trust Fund of 30 million U.S. dollars, it said.Under the agreement with Liberia, China will contribute over one million dollars and provide technical assistance through 24 Chinese experts and technicians to support implementation of the country's National Program for Food Security over a two-year period.In Senegal, China will provide assistance through 26 experts and technicians."At a time when continued economic uncertainties are having an impact on the flow of traditional North-South development assistance, South-South Cooperation is creating and building on partnerships that support the direct exchange of financial and technical contributions between developing countries," said Laurent Thomas, FAO Assistant Director-General, Technical Cooperation Department."FAO's experience with South-South Cooperation has shown that the knowledge and skills of technical experts and field technicians from the (global) South have made an invaluable contribution to efforts to modernize small-scale agriculture throughout the developing world," he added.FAO's SSC initiative was launched in 1996 to provide technical support to country-level action on food insecurity.According to the organization, a total of 47 tripartite agreements have been signed to provide technical assistance among developing countries in Africa, Asia-Pacific, Latin America and the Caribbean, and over 1,500 experts and technicians have been fielded in the framework of various food security initiatives.In addition to the Strategic Alliance with China, letters of intent for SSC Strategic Alliance have also been signed so far with Argentina and Indonesia.

WASHINGTON, Dec. 12 (Xinhua) -- British scientists have discovered a new way to target cancer through manipulating a master switch responsible for cancer cell growth. The findings, published Monday in the U.S. journal Cancer Cell, reveal how cancer cells grow faster by producing their own blood vessels.Cancer cells gain the nutrients they need by producing proteins that make blood vessels grow, helping deliver oxygen and sugars to the tumor. These proteins are vascular growth factors like VEGF -- the target for the anti-cancer drug Avastin. Making these proteins requires the slotting together of different parts of genes, a process called splicing.Scientists at the University of West England and the University of Bristol discovered that mutations in one specific cancer gene can control how splicing is balanced, allowing a master switch in the cell to be turned on. This master switch of splicing makes cancer cells grow faster, and blood vessels to grow more quickly, as they alter how VEGFs are put together.In experimental models, the researchers found that by using new drugs that block this master switch they prevented blood vessel growth and stopped the growth of cancers."The research clearly demonstrates that it may be possible to block tumor growth by targeting and manipulating alternative splicing in patients, adding to the increasingly wide armory of potential anti-cancer therapies," the authors said.

ULAN BATOR, Dec. 1 (Xinhua) -- Mongolia will continue to curb the spread of HIV and strive to maintain a low prevalence of the AIDS epidemic, a government official said Thursday.Gansukh Battulga, an official with the National Committee on AIDS, told Xinhua that Mongolia is currently an HIV low-prevalence country with a total of 99 people, 15 of whom have died, infected with the virus that causes AIDS."Among the 99 HIV infected cases, 81 percent are men, and the remaining 19 percent are women," Battulga said. "Among the male infected cases, 83 percent belong to MSM (men who have sex with men) group while sex workers account for 54 percent of the female infected cases."The official said the government has launched a variety of programs and tasked the National Committee on AIDS to coordinate all organizations in fighting the epidemic.According to a National Strategy Plan for 2010-2015, Mongolia will strive to maintain its current low HIV-prevalence rate of below 5 percent in the most-at-risk population.

来源：资阳报