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PHNOM PENH, Aug. 17 (Xinhua) -- The critically endangered Irrawaddy dolphin population in the Mekong River numbers just 85, World Wildlife Fund (WWF) new research revealed on Wednesday.Calf survival was found to be very low, leading researchers to conclude that the small population is declining and at high risk of extinction, said the Fund's statement sent to Xinhua News Agency on Wednesday.According to Li Lifeng, Director of WWF's Freshwater Program, the research is based on photographic identification of dolphins through individually unique features of their dorsal fins. "Most of the dolphins can be identified, and we use that information to estimate the population size," he said.Although this population estimate is slightly higher than the previous estimate, the researchers were quick to note that the population had not increased over the last few years."With a larger dataset and recent analytical advances, previously unidentifiable dolphins which had few marks on their dorsal fins have been included," he added.However, surveys conducted from 2007 to 2010 show the population slowly declining."Evidence is strong that very few young animals survive to adulthood, as older dolphins die off and are not replaced," he explained."Pressures of gill net entanglement and high calf mortality we are really worried for the future of dolphins," Li said.However, Touch Seang Tana, chairman of Cambodia's Commission for Conversation and Development of the Mekong River Dolphins Eco- tourism Zone, rejected the WWF's finding, saying that last year, 4 dolphins were killed by fishing nets, but up to 7 newborn dolphin babies were found.He estimated that the total population of Mekong dolphins in the north-eastern provinces of Kratie and Stung Treng is between 155 and 177 now, up from just 100 in 2006.The Mekong River Irrawaddy dolphin has been listed as critically endangered on the World Conservation Union Red List of Threatened Species since 2004.

WELLINGTON, June 7 (Xinhua) -- Scientists in New Zealand have developed a new drug to fight previously untreatable hypoxic cancer tumors, which form in areas of the body starved of oxygen.The researchers at the Auckland University have entered an agreement for the clinical development of CEN-209, which was developed over 10 years of research, said a statement from the university Tuesday.CEN-209 was designed to enhance the effectiveness of radiotherapy and chemotherapy in solid hypoxic tumors, which were resistant to standard cancer therapies, said the statement. In lung cancer patients for example, about half of tumors had hypoxic regions.The new drug worked by damaging the DNA of hypoxic cancer cells, while leaving normal, healthy tissues alone.CEN-209 was designed and created by researchers at the university's Auckland Cancer Society Research Centre (ACSRC), using computer models of drug transport within tumors to accurately predict the anti-tumor activity of the drugs."Our computer models of drug transport developed in-house allowed the synthetic chemists to test their design theories and considerably shortened the discovery process," said Associate Professor Michael Hay, who led the ACSRC research chemists."CEN-209 improves markedly on previous agents in this class in terms of its ability to penetrate tumors, and this is reflected by its improved activity in the laboratory, when combined with long or short courses of radiotherapy," said researcher Professor Bill Wilson.Under the agreement between the university's Auckland UniServices Ltd. and California-based Centella Therapeutics, Inc., a subsidiary of Varian Medical Systems, Inc., Centella will have exclusive rights to CEN-209, which it will develop and trial with Cancer Research UK.The work on CEN-209 is the culmination of a program initiated with funding from the U.S. National Cancer Institute, and more recently from the Maurice Wilkins Centre for Biodiscovery. Ongoing preclinical research on CEN-209 and a backup compound was funded by grants from the Auckland Medical Research Foundation, Genesis Oncology Trust and Health Research Council of New Zealand, said the statement.

XICHANG, Sichuan, Aug. 12 (Xinhua) -- China launched a communications satellite PAKSAT-1R for Pakistan at 0:15 a.m. Friday from the Xichang Satellite Launch Center in southwest China's Sichuan Province.The satellite was carried by a Long March-3B carrier rocket, according to the launch center. It is China's first in-orbit delivery to Asian customers and also the first commercial satellite export to international users this year.According to statistics from the control center, the satellite successfully separated from its carrier rocket and entered geostationary transfer orbit as scheduled, 26 minutes after being launched.PAKSAT-1R will provide a range of services, including broadband Internet, telecom and broadcasting, covering some regions of Europe, South Asia, the Middle East, and the eastern Africa.The contract for the PAKSAT-1R was signed in 2008 between China Great Wall Industry Corporation and the Space and Upper Atmosphere Research Commission of Pakistan.China and Pakistan share a long history of space technology cooperation. Pakistan's first low-orbit satellite, BADR-A, was launched by China in 1990 with Long March 2E rocket.

CHENGDU, Sept. 20 (Xinhua) -- A United Nations official said Tuesday that she hopes China will take every opportunity to reinforce, support and lead the UN's agenda and "infuse it with strength and wisdom.""The more China gives, the better the UN can become," said Renata Lok-Dessallien, UN Resident Coordinator and United Nations Development Program (UNDP) Resident Representative in China, at the Seminar in Memory of the 40th Anniversary of the Resumption of Lawful Rights of China in the United Nations.The three-day seminar from Sept. 19 to 21 is being held in the city of Chengdu in southwest China's Sichuan Province. About 100 UN and Chinese officials are gathering to discuss China's role in the UN, as well as the UN's role in global diplomacy.Lok-Dessallien said that the General Assembly Resolution of Oct. 25, 1971 was an "important milestone in China's international relations and in the history of the United Nations.""It restored the rights of the People's Republic of China in the United Nations and marked China's entry to the world stage," she said.Steven Sabey, a senior policy advisor from the UNDP's China office, said that China plays an important role in facilitating cooperation about the member states of the United Nations."China needs the United Nations, and the United Nations also needs China," said Wu Hailong, China's assistant minister of foreign affairs."We must recognize that as the largest developing country in the world, China needs to manage its domestic affairs first, as this can have a positive effect on humanity as a whole," Wu said.As China's role in the world continues to grow and evolve, the UN's role in China will also grow, according to Lok-Dessallien."As China's development trajectory continues to evolve, we are entering significantly new territory in the UN-China relationship," she said.Sabey said that he hopes China will strengthen its cooperation with the United Nations in order to further improve intercultural communication and allow China to contribute more to other developing countries."The United Nations is committed to continuing to deepen and strengthen our partnership as we tackle the many global challenges ahead," said Lok-Dessallien.

SAN FRANCISCO, Sept. 13 (Xinhua) -- Microsoft released on Tuesday a test version of Windows 8 to developers, posing to regain ground of the tablet market dominated by Apple and Google.At its developer-focused BUILD conference held in Anaheim, California, the software giant handed out new Samsung tablet computers with a test version of the code-named "Windows 8," the first detailed preview of the system for developers and people outside Microsoft.Generally expected to be launched in fall 2012, Microsoft did not say when the system will ship or its price.Microsoft Windows President Steven Sinofsky introduces the new tablet running a test version of its touch-enabled Windows 8 at the Build conference in Anaheim, California September 13, 2011Featuring a home page filled with colorful application tiles, the new system boots up in seconds. Microsoft said the system will run on low-power ARM-based chips that power smartphones and tablets. Windows 8 also introduces a new "Metro style" interface, which run full-screen and users can multitask in two at a time."We reimagined Windows," said Steven Sinofsky, president of the Windows and Windows Live Division at Microsoft, in his keynote address to the thousands of developers in attendance. "From the chipset to the user experience, Windows 8 brings a new range of capabilities without compromise."Analysts said the new system is consumer-oriented and intuitive but it will take time to see whether it is an "iPad killer."As professionals and consumers began to spend more time on smartphones and tablets, Microsoft has not got a significant bite of the market, losing ground to Apple's iPad and devices running Google's Android system.