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  • Cisco Says Visual, Communications Apps Are Driving Broadband Traffic (23/10/2009 16:51:26)

  • In a survey of more than 20 top service providers, Cisco Systems finds that video and other visual applications now constitute 30 percent of traffic running through service provider networks, feeding into Cisco's assertion that such visual apps will dominate networks by 2013. In addition, the top 1 percent of broadband subscribers worldwide generate 10 percent of the traffic.

    Xem bản gốc từeweek
  • Scientists Prove Mother Can Pass Cancer to Her Unborn Baby (23/10/2009 15:20:54)

  • The placenta is an unborn baby’s lifeline. Attached to the inside of the uterus and connected to the fetus by the umbilical cord, the placenta works as a trading post between the mother’s and the baby’s blood supply. Oxygen and nutrients in the mother’s blood pass across the placenta to the fetus, and metabolic wastes and carbon dioxide from the fetus cross in the other direction. The placenta also helps protect the baby from infections and potentially harmful substances, but it’s not a foolproof filter. Other substances, such as alcohol, drugs, and cigarette smoke can also cross the placenta, with effects including congenital disorders, drug addiction, and fetal alcohol syndrome in the newborn. And scientists have long suspected that cancer can cross the placental barrier and spread from the mother to her unborn child, but have had no proof—until now.

    Xem bản gốc từHealth News
  • SOI Technology (18/10/2009 09:09:27)

  • As with IBM’s leadership manufacturing microchips using copper interconnect technology, the company has now announced what it believes to be the first commercially-viable implementation of silicon-on-insulator (SOI). For more than three decades, scientists have been searching for a way to enhance existing silicon technology to speed computer performance. This new IBM success in harnessing SOI technology will result in faster computer chips that also require less power -- a key requirement for extending the battery life of small, hand-held devices that will be pervasive in the future. SOI is a major breakthrough because it advances chip manufacturing one-to two-years years ahead of conventional bulk silicon. The following provides a step-by-step look at the developments leading up to the development of SOI technology including: a basic description of what a transistor is, a description of how chips are made, the need for improving the way chips are made, the elements of SOI technology and the impact of SOI technology.

  • Inaugural Address - John F. Kennedy (16/10/2009 14:25:55)

  • We observe today not a victory of party, but a celebration of freedom -- symbolizing an end, as well as a beginning -- signifying renewal, as well as change. For I have sworn before you and Almighty God the same solemn oath our forebears prescribed nearly a century and three-quarters ago.

    Xem bản gốc từAmerican Rhetoric
  • First Inaugural Address - Franklin Delano Roosevelt (16/10/2009 14:25:55)

  • This is a day of national consecration. And I am certain that on this day my fellow Americans expect that on my induction into the Presidency, I will address them with a candor and a decision which the present situation of our people impels.

    Xem bản gốc từAmerican Rhetoric
  • Teens With Psychosocial Disorders Prone to Internet Addiction (16/10/2009 13:21:37)

  • In recent years, there has been an explosion of Internet use, and it’s easy to understand why. The Internet provides affordable up-to-date information on almost any topic imaginable, around-the-clock entertainment, social networking sites that allow for both public and anonymous communication, and email or online chat that lets us keep in contact with family and friends, even if they’re in another time zone. Most people are able to integrate online time into their lives in a balanced healthy manner, but others develop a stronger dependency, often replacing work, school, friends and even family with countless hours surfing the Web, instant messaging and blogging, or playing Internet video games. In fact, it is estimated that as many as 10 percent of Internet users may be considered addicted. Experts say that people who abuse the Internet are typically struggling with other problems, like anxiety or depression, and new research lends credence to that theory.

    Xem bản gốc từHealth News
  • More Than One Billion People Going Hungry (15/10/2009 14:09:09)

  • United Nations food agencies report more than one billion people, or one sixth of the world's population, are going hungry. This report by the UN Food and Agriculture Organization and the World Food Program is being released in advance of World Food Day, which falls on October 15. The report warns the number of undernourished people will continue to grow unless the world's fragile food system is reformed.

    Xem bản gốc từVOA News