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VIENNA, Oct. 7 (Xinhua) -- A sculpture of late Soviet cosmonaut Yuri Gagarin was presented to the UN Office in Vienna (UNOV) Friday to celebrate "50 Years of Human Spaceflight," the theme of the World Space Week 2011.In 1961, Gagarin completed an orbit around the Earth aboard the Vostok 1 spacecraft, serving as a pioneer of human spaceflight.The sculpture is a gift from the Russian government and would be placed at the Permanent Exhibit of the United Nations Office for Outer Space Affairs (UNOOSA).Attendants of the ceremony include UNOV Director-General Yury Fedotov, UNOOSA Director Mazlan Othman and Head of the Russian Permanent Mission Vladimir Voronkov."Outer space is one of the most exciting and challenging topics, and perhaps of all the important topics on the agenda of the United Nations, none quite captures our imagination like outer space," Othman said in her statement.Meanwhile, speaking highly of Gagarin's achievement 50 years ago, Fedotov stressed that the purpose of the development and utilization of outer space must be to the benefit of all mankind.The UN official said that relevant UN agencies would provide technical assistance to all countries to develop outer space and ensure the benefits in peaceful purpose.On Dec. 6, 1999, the 55th United Nations General Assembly declared the World Space Week to be held every year during Oct. 4-10.

BEIJING, Oct. 11 (Xinhuanet) -- Scientists have discovered that blind optimism is related to brain's frontal lobes which are associated with processing errors, according to a British study published Monday in the journal Nature Neuroscience.Scientists at the University College of London scanned brains of volunteers who were asked to estimate their personal likelihood of involving in negative events, like a divorce or cancer,  before and after given the average probability of these events occurring.They found that the volunteers who estimated lower probability (or the more optimistic ones) than the given one raised their estimates a little bit later while those estimated higher probability altered their estimates much more.Through the brain scanner, scientists saw there was less activity in the volunteers' frontal regions when the information given was worse than expected while more activity when the information was better than expected. It suggested that the more optimistic people neglected the negative predictions."The more optimistic we are, the less likely we are to be influenced by negative information about the future," said Dr. Tali Sharot, lead author of the study. He added being optimistic clearly had some benefits, "but it can also mean that we are less likely to take precautionary action, such as practising safe sex or saving for retirement. So why don't we learn from cautionary information?"

HOUSTON, Dec. 13 (Xinhua) -- NASA Johnson Space Center on Tuesday formed a partnership with Texas's largest tech incubator and accelerator, the Houston Technology Center (HTC), to help reach its goals of increasing private and public collaboration.The strategic partnership is aimed at expanding HTC's mission of accelerating the growth of emerging technology companies in the Houston region to support NASA's goals of increasing private and public cooperation, the parties said in news release."We are excited to partner with NASA Johnson Space Center in an effort to foster entrepreneurial opportunities to the transitioning workforce in the Bay Area," said Walter Ulrich, CEO of Houston Technology Center."The combination of NASA's incredible technologies and HTC's powerful entrepreneurial resources presents the potential for immense economic development," he said.HTC is committed to growing a sustainable entrepreneurial network that will benefit the surrounding the space center for years to come including its future missions beyond low earth orbit. HTC will seed the future workforce through its close ties with the major universities and with science, technology, engineering, math programs and objectives, according to the news release.NASA and the Houston Technology Center began their partnership earlier this year when they originally formed plans to open an office to help former contractors near the Johnson Space Center.With the signing of the Space Act Agreement on Tuesday, the two sides move forward with retraining contractors and helping them get new jobs in the Houston area.An estimated 4,000 people are expected to lose their jobs when the space shuttle program is completed.

ALMATY, Nov. 4 (Xinhua) -- Kazakhstan's Center for Prevention and Control of AIDS said Friday that the country had 17,266 registered HIV carriers as of Oct. 1,compared with 15,908 as of Feb. 1, 2010.Of the HIV-positive people, 1,432 were diagnosed with AIDS while 1,110 people carrying the virus AIDS have died, the center said.Last year, it said, a total of 1,969 new HIV cases were reported in the country.