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毛里求斯问鼎非洲安全治理指数榜 The annual Ibrahim Index on African Governance shows almost two in three African citizens live in a country in which safety and the rule of law have deteriorated during the past decade. 2016年的易卜拉欣
Unit 65 The American Sleep Deficit There are many things that divide Americans. But at least one thing unites us. Most of us -- 64 percent, to be precise -- are sleep-deprived. A recent survey by the National Sleep Foundation found that lack of sleep
The ozone layer is thinner than it used to be. This fact has motivated humans to keep themselves protected from the suns ultraviolet, or UV, rays. But just because we can protect ourselves from these rays doesnt mean that they dont still existthey ex
By Mil Arcega Washington, DC 13 January 2006 watch Frog Global report A new study published in a prominent scientific journal has provided the first concrete evidence that global warming is contributi
By Melinda Smith Washington, DC 12 July 2006 watch Sleep and Memory report How many hours of sleep do you get every night? If you're like most of us, the answer is not enough. Scientists have found that getting enough rest will help you remember mor
By Rowan Reid Johannesburg 07 April 2006 World Health Day celebrations in Luzaka, Zambia The World Health Organization says a shortage in trained health workers is reaching a crisis point worldwide an
By Vivian Salama Cairo 21 June 2006 Arab soccer fans are expressing outrage after a player on Ghana's national team triumphantly waved an Israeli flag to celebrate a goal scored by his team at the World Cup. Player John Paintsil normally plays for a
By Zulima Palacio Toronto, Canada 18 August 2006 watch Malnutrition report The World Health Organization says 60 percent of childhood deaths in developing countries are related to malnutrition. And the lack of proper food is also playing a role in t
By Deborah Tate Capitol Hill 25 January 2007 Members of Congress are vowing to hold the Bush administration accountable for U.S. funds used in reconstruction projects in Iraq. Lawmakers are concerned about the mismanagement of millions of dollars in
By Michael Bowman Washington 27 May 2008 A private U.S.-based philanthropic group has announced it will spend more than half a billion dollars to fund groundbreaking medical research in a multitude of fields. From Washington, VOA's Michael Bowman rep
By Elizabeth Lee Washington 23 October 2009 According to the World Health Organization, one in three women in the world will experience violence in her lifetime. Human Rights groups are urging members of Congress to pass the International Violence A
Exercise and healthful eating are linked to better healthand so is having a decent circle of friends. Now it looks like that link between friends and better health is true for the major online social network, too: Facebook. Researchers compared the h
Yael: You must be a having a good day. The smile on your face is a mile wide. Don: I'm finally going to get revenge on my neighbor. Y: For what? D: He has the loudest lawnmower you've ever heard. And as if that isn't enough, he mows his lawn every Sa
By Carol Pearson Washington, DC 06 July 2006 watch Stroke Prevention report People with diabetes, sickle cell anemia, or sleep apnea are at risk for having a stroke. The American Stroke Council has some guidelines that can help prevent stroke. -----
By Gilbert da Costa Abuja 09 May 2007 Attackers carrying assault rifles and rocket-propelled grenades stormed a transport vessel carrying oil workers off the southern coast of Nigeria, kidnapping four Americans late Tuesday. Gilbert da Costa reports
The Ancestry Of Snakes 古生物学界的一部分学者认为,蛇是由陆地蜥蜴的一个分支进化而来的,在进化的过程中,它们的脚逐渐退化消失了,而身子则变得越来越细长。另一种流行观点则认为蛇的前