梅州多久做打胎好(梅州瘦身吸脂) (今日更新中)

WELLINGTON, May 24 (Xinhua) -- New Zealand researchers have found a way to stop the growth of certain cancer tumors by " silencing" a group of PAX genes, members of a small family of genes that play important roles in embryonic development, but also allow cancer cells to grow and divide in adult tissue.In an article published in UK medical journal Oncogene, Otago University Professor Michael Eccles and colleagues revealed how they used the PAX8 gene to kill cancer cells.After detecting high levels of PAX8 protein in the majority of kidney, ovarian and thyroid cancers they studied, the researchers used molecular techniques to silence the PAX8 gene in several cancer cell lines."We found that these PAX8-depleted cancer cells ceased growing and dividing. The cells were essentially stopped in their tracks through the failure of multiple mechanisms and pathways crucial to their cell division cycle. They then entered into a state called senescence in which they no longer divided, and after that they ultimately died," Eccles said in a statement from the university Tuesday.The findings suggested that PAX8 could be a good target for the development of new cancer therapies, he said."Any resulting drugs would be a long way down the road, but in the meantime this research helps confirm that a focus on PAX genes may prove to be a fruitful line of attack against a number of cancers," he said.The research was supported by grants from the Health Research Council of New Zealand. It formed the main piece of work carried out by Otago doctoral graduate Caiyun (Grace) Li, now a postdoctoral fellow at Stanford University. Study co-authors also included Professor Antony Braithwaite and master's student Jen Nyman.In 2003, research led by Eccles discovered that proteins from one or more of the nine PAX genes were present in many common cancers. They found that "silencing" the gene expression of PAX2 in ovarian and bladder cancer cells, and of PAX3 in melanoma, led to the rapid death of the cells.

SHANGHAI, Feb. 8 (Xinhua) - Shanghai World Expo authorities said that about 300,000 tourists have visited the China Pavilion of the expo during the seven-day Spring Festival holiday, as of Tuesday evening.Daily peak was recorded at 48,000 visitors, authorities said late Tuesday.The China Pavilion had been adorned with a new logo of a rabbit and two carrots to mark the country's Lunar New Year celebrationsMore than 1,500 staff, police and volunteers were assigned to the China Pavilion to ensure public safety during the holiday.The organizers also sold tickets in advance and extended opening hours to accommodate the large number of visitors.Overseas and domestic tourists from outside Shanghai comprised 70 percent of the total visitors during the holiday, according to a survey by the organizer.The China Pavilion of the Shanghai World Expo had reopened on December 1, 2010 and will remain open to the public until the end of May this year.

SHANGHAI, May, 13 (Xinhua) -- Scientists attending a recent high-level conference on robotics agreed that great progress has been made in the field, but strict rules for the safe usage of robots should be implemented."Four years ago, if you went into a Chinese factory and said 'robots can help you work,' you would be kicked out. But now, China has a large industrial robot market, along with Japan, the Republic of Korea and the United States," says Li Zexiang, general chair of the 2011 International Conference on Robotics and Automation (ICRA 2011), which concluded Friday in Shanghai.Chinese robotics researchers have suggested to the government that rules and regulations for robot usage should be created. Professor Wang Tianmiao from the Beihang University (BUAA) told Xinhua about the suggestions during the conference.Wang says that in the future, it might not be possible for artificial intelligence to take the place of humans in some social roles. However, Wang says that mankind should pay close attention to the possible dangers of advancements in robotics, as the industry is currently undergoing dramatic changes.The five-day conference, which is organized by the Institute of Electrical and Electronics Engineers (IEEE), took place in China for the first time ever since its first session in 1984, which took place in the city of Atlanta in the United States.Media reports show that Japan, the Republic of Korea (ROK) and several Western countries have already drafted rules about the safe use of robots.

BEIJING, Jan. 22 (Xinhua) -- Chinese President Hu Jintao has just ended his four-day landmark visit to the United States.During the visit, both sides agreed to build a China-U.S. cooperative partnership based on mutual respect and mutual benefit, which is to lead the development of bilateral ties in the future.It is widely believed that, in the new era, China and the United States need to enhance their political and economic relations, as well as boost cooperation in regional and international affairs.In order to achieve that, observers from across the world hold that the key lies in common actions.BLUEPRINT FOR BILATERAL RELATIONSReiterating their commitment to developing a positive, cooperative and comprehensive China-U.S. relationship as they agreed in 2009, Chinese and U.S. leaders also vowed to build "a cooperative partnership based on mutual respect and mutual benefit", during Hu's visit to Washington.The two terms showed a kind of progress which represented the increasing common interests and mutual need of the two sides over the recent period, as well as more and more challenges that required the joint efforts of the largest developed and developing countries, Chinese Vice Foreign Minister Cui Tiankai said.Yuan Peng, director of the America Studies of China Institute for Contemporary International Relations (CICIR), said the new expression of bilateral ties was positive, objective and pragmatic.As the deepening and development of the previous expression, the new term was a highlight of President Hu's U.S. visit, Yuan said.The joint statement issued by both sides during Hu's stay, which is built upon bilateral efforts to establish the cooperative partnership based on mutual respect and mutual benefit, is a clear reflection of the two countries' resolution and pragmatic attitude in jointly meeting global challenges, according to Chen Kang, professor at Lee Kuan Yew School of Public Policy at the National University of Singapore.In a nutshell, every word matters in the new expression.As "mutual respect" urges both China and the United States to respect each other's core interests and path of development, "mutual benefit" means that both countries are expected to achieve a win-win situation rather than a win-lose one, and bring about common prosperity."Partnership," meanwhile, shows that the two powers, instead of being rivals, are closely linked with each other in actions to cope with regional and international issues.Fu Mengzi, a researcher with the Beijing-based CICIR, told Xinhua, while every country attached great importance to their own national interest, their respective interests were neither unilateral nor absolute."When seeking its own interest, a country should meanwhile take into consideration the interest and major concerns of other countries," Fu said, adding that only by so doing could a win-win result rather than a zero-sum relationship be achieved.

WASHINGTON, May 27 (Xinhua) -- Two U.S. astronauts conducted the fourth and final scheduled spacewalks for space shuttle Endeavour 's STS-134 mission on Friday morning, the U.S. National Aeronautics and Space Administration (NASA) announced.The seven-hour, 24-minute spacewalk completed by Mike Fincke and Greg Chamitoff at 7:39 a.m. EDT (1139 GMT) was the final spacewalk conducted by space shuttle astronauts before NASA turns over Endeavour and sister ships Discovery and Atlantis to museums. Space station crew will continue to make spacewalks for maintenance and repair tasks.At 5:02 a.m. (0902 GMT), Fincke and Chamitoff surpassed the 1, 000th hour astronauts and cosmonauts have spent spacewalking in support of space station assembly and maintenance. The milestone occurred four hours and 47 minutes into the spacewalk, the 159th in support of station assembly and maintenance, totaling 1,002 hours, 37 minutes.The astronauts completed their mission to stow the 50-foot-long boom on the station truss and work on some new installations to extend the space station's robotic arm. After that, shuttle commander Mark Kelly called Mission Control in Houston to mark the milestone -- after 12 years of efforts."Space station assembly is complete," Kelly said.It was the 248th spacewalk U.S. astronauts have conducted and the 118th from space station airlocks. Landing is scheduled for 2: 32 a.m. EDT (0632 GMT) on Wednesday at the Kennedy Space Center in Florida. Shuttle Atlantis is targeted to launch on July 8 for space shuttle's final flight.Endeavour lifted off on May 16 from the Kennedy Space Center in Florida, to deliver to the International Space Station a 2-billion- dollar, multinational particle detector known as the Alpha Magnetic Spectrometer (AMS).AMS, a particle physics detector, is designed to search for various types of unusual matter by measuring cosmic rays. Its experiments are designed to help researchers study the formation of the universe and search for evidence of dark matter, strange matter and antimatter.NASA's 30-year-old shuttle program is ending due to high operating costs. The Obama administration wants to spur private companies to get into the space taxi business, freeing NASA to focus on deep space exploration and new technology development.When the U.S. space shuttle program officially ends later this year, the Russian space program's Soyuz capsule will be the only method for transporting astronauts to and from the station.

来源：资阳报