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WELLINGTON, July 29 (Xinhua) -- Scientists from around the world will gather on the east coast of New Zealand next week to discuss proposals to study "silent" earthquakes by drilling into the seabed.Silent quakes, also known as slow slip events, occur on the boundaries of the earth's tectonic plates, where one plate dives under another in areas known as subduction zones, and are slower than normal quakes, taking weeks or months to occur rather than seconds, and are rarely felt on the surface.About 70 scientists from 10 countries will convene in the city of Gisborne, which lies near the site of a major fault line and where scientists first identified silent earthquakes in 2002.Slow-slip events were first discovered with the advent of new measurement technologies on the west coast of Canada about 15 years ago and have since been recorded at about a dozen locations around the world, including four sites around New Zealand, said a spokesperson for New Zealand's Institute of Geological and Nuclear Sciences (GNS Science).About eight slow-slip episodes have occurred under Gisborne since 2002 at roughly two-year intervals.Scientists have proposed numerous theories to explain the phenomenon, but testing the theories is difficult as silent quakes happen many kilometers below ground."The best way to understand the true cause of slow-slip events is to drill into and sample the area on the plate boundary fault where they are known to occur, and monitor a whole range of physical and chemical properties at the plate interface," said Laura Wallace, of GNS Science.

WASHINGTON, July 5 (Xinhua) -- The countdown for the final space shuttle launch began Tuesday afternoon, but unfavorable weather may delay shuttle Atlantis' launch attempt on Friday, NASA announced."We are going with a 60 percent chance of KSC (Kennedy Space Center) weather prohibiting launch due to the potential for showers and isolated thunderstorms in the area," shuttle weather officer Kathy Winters told reporters Tuesday at a precountdown status briefing. "I wish I had a better weather briefing for you."Atlantis is scheduled to lift off at 11:26 am (1526 GMT) on Friday from Kennedy Space Center with four U.S. astronauts on board for a 12-day mission to the International Space Station. Overall, the chance of an on-time liftoff is 40 percent, Winters said."We will do everything we can to launch on Friday but if things don't work out so that we can do that we have plenty of options... Saturday and Sunday," said NASA Test Director Jeremy Graeber. Conditions improve for Atlantis launch opportunities on Saturday and Sunday.NASA said it must launch Atlantis by Sunday, otherwise it will have to wait until at least July 16. That's because of an unmanned rocket due to lift off next week, using the same launch support personnel and equipment.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.

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.

BEIJING, Sep. 1 (Xinhuanet) -- A campaign is being launched across U.S. to help lovers of sugar drinks reduce their habit by the Center for Science in the Public Interest.This campaign is based on the findings of a new survey conducted by CDC (Centers for Disease Control)."Men drink more than women, and teens and young adults drink the most," said Cynthia L. Ogden who is an epidemiologist at the CDC's National Center for Health Statistics.The campaign is called "Life's Sweeter with Fewer Sugary Drinks." And it aims to decrease intake of soda and sugary drinks down to the American Heart Association recommendation of fewer than three cans per person per week.Sugary drink intake in the U.S. has increased over the last 30 years, which has been linked with weight gain, obesity, poor diet, and type 2 diabetes.So far, the cities signing on include Boston, Chicago and Los Angeles.

GENEVA, Aug. 10 (Xinhua) -- In a bid to prevent millions of deaths and suffering every year from malnutrition, the Geneva-based World Health Organization (WHO) launched an online initiative on Wednesday.The e-Library of Evidence for Nutrition Actions (eLENA), according to WHO, offers the latest advice on tackling the three main forms of malnutrition, including undernutrition, vitamin and mineral deficiencies, as well as overweight and obesity.The recommendations by eLENA to tackle malnutrition include promoting breastfeeding and fortifying staple foods with vitamins and minerals such as iron and folic acid for wheat and maize flours.It also recommends using multiple micronutrient powders to fortify foods for children aged between six and 23 months.To prevent anaemia, daily iron and folic supplements are advised for pregnant women, and intermittent iron and folic acid supplementation is recommended for menstruating women and preschool and school-age.While overweight and obesity affect around 1.5 billion adults over age 20, and more than 40 million children aged under five across the world, underweight is the leading risk factor for many diseases in low-income countries and represents about six percent of the world medical burden, WHO statistics showed.