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BEIJING, July 27 (Xinhuanet) -- Amazon.com’s e-book reader Kindle 3G with special offers is now the company’s top-selling e-book device, according to media reports on Wednesday.Amazon revealed in its quarterly earnings report that the ad-supported version costs 139 U.S. dollars,  50 dollars cheaper than the comparable Kindle 3G, and costs the same as a Kindle with Wi-Fi connectivity. Many believe Kindle is the most popular dedicated e-book device on the market today.The advertisements will appear only in screensavers (which appear when the reader is in an idle state) and at the bottom of the home screen, so they don’t interrupt readers.“Since AT&T agreed to sponsor screensavers, Kindle 3G with Special Offers is now our bestselling Kindle device,” Amazon’s press release said.Having zoomed past the earlier Sony Reader, and kicked off a wave of competition including the Barnes & Noble Nook and the Kobo E-Reader, Kindle is believed the most popular dedicated e-book device on the market today.

BEIJING, Aug. 12 (Xinhuanet) -- Engineers at the University of Illinois have unveiled novel, skin-mounted electronics whose circuitry bends, wrinkles, and even stretches with skin, according to media reports quoting the Science Friday.The device platform includes electronic components, medical diagnostics, communications, and human-machine interfacing on a patch so thin and durable that it can be mounted to skin much like a temporary tattoo, the jounral described.What's more, the engineers demonstrated the invention across a wider range of components, including LEDs, transistors, wireless antennas, sensors, and conductive coils and solar cells for power."We threw everything in our bag of tricks onto that platform, and then added a few other new ideas on top of those to show that we could make it work," said engineering professor John A. Rogers in a news release.

UNITED NATIONS, June 9 (Xinhua) -- The message delivered by scores of speakers on the second day of the three-day UN High Level Meeting on AIDS on Thursday, marking 30 years of the pandemic, was that most of their countries were making progress but increased efforts had to be made with greater cooperation needed among nations.In the case of developing states, gratitude was expressed for past help but more aid was needed to continue the battle.Despite the similarities in content, the chair, UN General Assembly President Joseph Deiss, repeatedly appealed to speakers to limit their speeches to their allotted five minutes, warning at the halfway point that if everyone was taking an extra few minutes, a fourth day would have to be added to the agenda.One of the briefest addresses, well under time, was delivered by Yin Li, China's vice health minister, which he referred to as " a responsible developing country."Briefly listing some of the steps taken, the Chinese vice minister focused on achieving the UNAIDS goal of the three Zs -- " Zero new HIV infections, zero discrimination and zero AIDS-related deaths.""We should unite to generate a joint force, irrespective of gender, skin color, nationality, beliefs, values and ideology. Developed countries should further provide developing countries with unselfish, unconditional financial and technical support," he said. "Developing countries should place AIDS control in a position as important as economic development and actively explore prevention and treatment mode consistent with national conditions. ""Second, given the increasing disease burden of AIDS," he said, "the private sector and relevant organizations should shoulder more social responsibility."On the one hand efforts should be made to mobilize more resources in AIDS to better implement prevention, treatment and care measures; on the other hand, multinational drug manufacturers should reduce by a large margin the price of drugs, testing equipment and reagents through technology transfer, contract manufacturing and reduction of monopoly profits in order to promote universal access to treatment services," Yin added.Since AIDS prevention and treatment in China is an important component in the global fight against AIDS, he said, "Progress made in China is a positive contribution globally."The High Level Meeting on AIDS is taking place 10 years after the UN Special Session on HIV/AIDS and five years since signing of the Political Declaration in which UN Member States committed to universal access to HIV prevention, treatment, care and support.Norway's minister of the environment and international development, Erik Solheim, said, "Prevention and treatment must be mutually reinforcing and better treatment regiments need to be made available."He called for development of innovative methods for prevention.While Solheim said "remarkable" results had been achieved in the last three decades, there still was a need for a " transformation of current working methods."AIDS must be taken out of isolation into an "integrated approach," noting that HIV response has to be connected with UN Secretary-General Ban Ki-moon's Global Strategy for Women's and Children's Health and "HIV and AIDS programs should be mainstreamed into national health systems, he said.Solheim said that the social, political and economic empowerment of women is crucial and he welcomed the establishment of the new UN agency UN Women."The burden of HIV in the world is reduced but major challenges remain," the minister said. "Our experience is that the approaches that work well on HIV, are those based on rights and on promoting the dignity of people."Celsius Waterberg, the health minister of Suriname, said the nation "is among the few countries in the Caribbean where the incidence of HIV infection has decreased by more than 25 percent."The strides forward are due to a national multi-sectoral HIV Council, setting up structures to provide leadership in quality of services and training in revised treatment protocols, he said.Suriname, the smallest sovereign state in South America, on the northeast coast of the continent, also introduced combined prevention tools and implemented pilot projects successful in mobilizing men for circumcision as an additional preventive measure, Waterberg said.Challenges that need to be overcome include harmful traditions and customs, misconceptions and adverse beliefs, language barriers in a multilingual society and vulnerability of small communities and individuals due to HIV-related stigma, gender inequalities and poverty, he said.Victor Makwenge Kaput, health minister of the Democratic Republic of Congo, said that although the government had made progress in supporting individuals living with HIV and protecting the uninfected, it continues to face many challenges. Indeed, HIV prevalence stood at 3.7 percent for pregnant women and 3 percent for the general population, he said.AIDS' victims increasingly are women and youth with infections particularly concentrated along the Congo River, the minister said. Today, 1.2 million citizens are infected. Total population in the third largest country in Africa, about the size of Western Europe, is 71 million.He said women account for roughly 71,000 new infections each year and the government is now paying particular attention to mother-to-child transmission.Kaput said his long war-torn nation is committed to the global vision of zero infections and appealed for support to curb the spread of HIV.

WASHINGTON, July 27 (Xinhua) -- Astronomers studying observations taken by NASA's Wide-field Infrared Survey Explorer (WISE) mission have discovered the first known "Trojan" asteroid orbiting the sun along with Earth, the U.S. National Aeronautics and Space Administration (NASA) announced Wednesday in a statement.Trojans are asteroids that share an orbit with a planet near stable points in front of or behind the planet. Because they constantly lead or follow in the same orbit as the planet, they never can collide with it. In our solar system, Trojans also share orbits with Neptune, Mars and Jupiter. Two of Saturn's moons share orbits with Trojans.Scientists had predicted Earth should have Trojans, but they have been difficult to find because they are relatively small and appear near the sun from Earth's point of view."These asteroids dwell mostly in the daylight, making them very hard to see," said Martin Connors of Athabasca University in Canada, lead author of a new paper on the discovery to be published Thursday in the journal Nature. "But we finally found one, because the object has an unusual orbit that takes it farther away from the sun than what is typical for Trojans. WISE was a game-changer, giving us a point of view difficult to have at Earth 's surface."The WISE telescope scanned the entire sky in infrared light from January 2010 to February 2011. Connors and his team began their search for an Earth Trojan using data from NEOWISE, an addition to the WISE mission that focused in part on near-Earth objects, or NEOs, such as asteroids and comets. NEOs are bodies that pass within 28 million miles (45 million kilometers) of Earth 's path around the sun. The NEOWISE project observed more than 155, 000 asteroids in the main belt between Mars and Jupiter, and more than 500 NEOs, discovering 132 that were previously unknown.The team's hunt resulted in two Trojan candidates. One called 2010 TK7 was confirmed as an Earth Trojan after follow-up observations with the Canada-France-Hawaii Telescope on Mauna Kea in Hawaii.The asteroid is roughly 1,000 feet (300 meters) in diameter. It has an unusual orbit that traces a complex motion near a stable point in the plane of Earth's orbit, although the asteroid also moves above and below the plane. The object is about 50 million miles (80 million kilometers) from Earth. The asteroid's orbit is well-defined and for at least the next 100 years, it will not come closer to Earth than 15 million miles (24 million kilometers).