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BEIJING, Sept. 28 (Xinhuanet) -- The unmanned Shenzhou VIII, part of China's first spacecraft rendezvous and docking mission, will be launched in early November. Niu Hongguang, deputy commander-in-chief of the program, said on Tuesday the launch has not been affected by the postponed lift-off of the Tiangong-1 space module. Tiangong-1 was to enter a low orbit around Earth at the end of August before being met by Shenzhou VIII. However, the departure was pushed back after a satellite failure on Aug 18. Out of safety concerns, Niu said mission commanders ordered a halt to testing at Jiuquan Satellite Launch Center on Tiangong-1 and its carrier rocket, Long March II-F T1. China Aerospace Science and Technology Corp, which designed and made the rocket carrier that failed to launch, formed an expert panel to investigate and made modifications. A successful launch of a communication satellite on Sept 19 using the Long March II-C showed the measures worked, Niu said, adding: "We now have confidence in the launch of Tiangong-1." The module is a "simplified" space lab that will not only be a docking target, but will also work as a space experimental platform. It will be unmanned for most of its two years of use, although astronauts will spend time onboard for short periods. After Shenzhou VIII, the country will launch Shenzhou IX and Shenzhou X next year to rendezvous and dock with Tiangong-1. Niu confirmed Shenzhou X will be manned. Tiangong-1 can accommodate two to three astronauts. "Whether Shenzhou IX will be manned is up to the results of the first rendezvous and docking mission," he said. The rocket carrier with Tiangong-1 atop stands 52 meters tall, with a takeoff weight of 493 tons. Tiangong-1 was scheduled for launch in between Sept 27 and 30, but due to weather forecasts that predicted a cold air mass would move into the area of Jiuquan Satellite Launch Center, it is believed that conditions on Thursday and Friday will be suitable for takeoff.

WASHINGTON, June 16 (Xinhua) -- Cells in the human body are constantly being exposed to stress from environmental chemicals or errors in routine cellular processes. While stress can cause damage, it can also provide the stimulus for undoing the damage. New research by a team of scientists at the University of Rochester has unveiled an important new mechanism that allows cells to recognize when they are under stress and prime the DNA repair machinery to respond to the threat of damage.Their findings will be published Friday in journal Science. Cells in the human body are constantly being exposed to stress from environmental chemicals or errors in routine cellular processes. While stress can cause damage, it can also provide the stimulus for undoing the damage.The scientists, led by biologists Vera Gorbunova and Andrei Seluanov, focused on the most dangerous type of DNA damage -- double strand breaks. Unrepaired, this type of damage can lead to premature aging and cancer. They studied how oxidative stress affects efficiency of DNA repair. Oxidative stress occurs when the body is unable to neutralize the highly-reactive molecules, which are typically produced during routine cellular activities.The research team found that human cells undergoing oxidative stress synthesized more of a protein called SIRT6. By increasing SIRT6 levels, cells were able to stimulate their ability to repair double strand breaks. When the cells were treated with a drug that inactivated SIRT6, DNA repair came to a halt, thus confirming the role of SIRT6 in DNA repair. Gorbunova notes that the SIRT6 protein is structurally related to another protein, SIR2, which has been shown to extend lifespan in multiple model organisms."SIRT6 also affects DNA repair when there is no oxidative stress," explains Gorbunova. "It's just that the effect is magnified when the cells are challenged with even small amounts of oxidative stress."SIRT6 allows the cells to be economical with their resources, priming the repair enzymes only when there is damage that needs to be repaired. Thus SIRT6 may be a master regulator that coordinates stress and DNA repair activities, according to Gorbunova.

BEIJING, June 12 (Xinhua) -- China's Supreme People's Court (SPC) on Sunday publicized a judicial interpretation which sets specific rules for the country's courts to order penalties to criminals sabotaging TV and radio facilities.The interpretation said that criminals, whose sabotage causes information block for disaster early warning, rescue and others concern public security, could be convicted three to seven years of imprisonment on the charge of sabotaging TV and radio broadcast facilities.Other circumstances that could be convicted the imprisonment include sabotage that causes malfunction in the broadcast of TV and radio stations, according to the new law.According to statistics with the SPC, there have been more than 5,000 cases of sabotaging cable TV wires and more than 1,000 cases of sabotaging state-owned fiber optic lines and other cases of stealing broadcast facilities since 2006 in China.

BERLIN, June 8 (Xinhua) -- The deadly strain for the E. coli outbreak was found again on cucumbers, authorities of German state Saxony-Anhalt said on Wednesday. The strain O104 was found on the scraps of cucumbers in a dustbin in the eastern city of Magdeburg, said State Health Minister Holger Paech.The dustbin belongs to a family in which three members have been ill. Paech said. The father only suffered a slight stomach upset, while the mother was once treated at a hospital and is now released. Their daughter is suffering from hemolytic-uremic syndrome (HUS), a serious complication from the infection of E. coli.However, experts were not clear about how the bacteria came to the cumbers, which have been in the dustbin for a week and a half."It is not clear and we are not able to determine how it reached there." Paech said.German authority first detected such bacteria from Spanish cucumbers on May 26, which has been overthrown by the laboratory tests in Hamburg last Tuesday.On Sunday, German State Lower Saxony issued a warning on bean sprouts as a possible source for the outbreak, which was proven to be negative on Monday.The German government has faced increasing criticism from abroad and at home for dealing with this crisis, as it has wrongly blamed the source of the infection for twice and there is a lack of coordination between different research institutes on the outbreak.John Dalli, European Union Health Commissioner, was quoted by local daily Die Welt saying "we have to rely on the experience and expertise across Europe, and even outside Europe."The Max Planck Institute for Infection Biology in Berlin also called for a federal government representative to coordinate the various government agencies which are dealing with the crisis.A federal government representative could increase cooperation between ministries and reduce mixed messages from the government, said director Stefan Kaufmann.On the same day, Germany's national disease control center, the Robert Koch Institute, said the number of infection has shown an overall decreasing trend but it is still uncertain whether the decline is due to people staying away from vegetables or to the waning of the source of infection.Until Wednesday, 25 deaths have been reported while the infection cases have increased more than 2,600 in 12 countries around the world.

BEIJING, Aug. 26 (Xinhua) -- China's maritime authority on Friday once again urged U.S. oil giant ConocoPhillips to finish cleaning up oil spills in north China's Bohai Bay as soon as possible.Aug. 31 is the deadline set by the government. "There are only five days to go before the arrival of the deadline," said a statement of the State Oceanic Administration (SOA).The SOA urged ConocoPhillips China to adopt all technical measures that could be used to clean up oil spills, and to do it "with an active manner."Liu Cigui, head of the SOA, said Thursday that his administration is collecting evidence and gauging the ecological impact of the spills in preparation for possible legal action against the company.ConocoPhillips China, a subsidiary of ConocoPhillips, first reported the oil spills in June. The spills have spread to beaches in Hebei and Liaoning provinces and been blamed for losses in local tourism and aquatic farming industries.Although the company has worked to clean up the spills, pollutants have still been found in the bay, even after cleanup efforts were reported to be complete.ConocoPhillips China admitted that a total of 16 oil spill sources have been found in the bay as of Friday.