单词:Cazenave's vitiligo
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It is often said that cats have nine lives, that they are lucky enough to escape from danger again and again. Here is a science fiction tale about how one such lucky escape by a cat led to a discovery that was able to change the course of people's l
SCIENCE IN THE NEWS - Acne, Eczema and More: Scratching the Surface on the Rough Life of Skin By Caty Weaver Broadcast: Tuesday, November 29, 2005 (MUSIC) VOICE ONE: I'm Sarah Long with Bob Doughty, a
Broadcast: May 6, 2003 By Caty Weaver VOICE ONE: I'm Sarah Long with Bob Doughty, and this is the VOA Special English program, SCIENCE IN THE NEWS. VOICE TWO: Today, we talk about some disorders of th
By Phuong Tran Dakar 13 February 2007 Even in African countries with overall low HIV infection rates, sex workers are many more times likely to carry the virus. In this second part of a five-part series on the most vulnerable groups to HIV infection
VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. VOICE TWO: And I'm Bob Doughty. Today, we will tell about some disorders of the skin, and ways to treat them. (MUSIC) VOICE ONE: Skin. It is the largest organ of the b
By Scott Bobb Johannesburg 24 March 2008 Campaigning in Zimbabwe is peaking as voters prepare to go to the polls Saturdayto elect a president, national assembly, senate, and local leaders. Correspondent Scott Bobb takes a look at the candidates and s
Man's Africa Trek Saves Pristine Forests Michael Fay calls himself a nature boy. Hes made a career of exploring the globe in the name of environmental protection, sponsored by organizations like National Geographic and the Wildlife Conservation Socie
Rising Youth Unemployment Endangers Africa's Stability One example is Ahmet Toure of Senegal who has never had a job. Toure makes his living buying second-hand jeans from flea markets around Dakar. Toure repairs and retailors them to sell them for a
Lack of Civility Hampers S. Africa's Sanitation Efforts Lucky Manyisi inspects his jurisdiction, as he calls it. Diepsloot, section 1: its laughing school children enjoying their summer break, its makeshift shacks, its unpaved roads where pointy rock
before Barack Obama became president, he was a community organizer on Chicago's south side Long before Barack Obama came to Washington as a U.S. senator, then won election as the first African-American president of the United States, he was a communi
Africa's Bright, Dark Economic Spots Get Attention As the International Monetary Fund (IMF) and World Bank spring meetings kick off in Washington this week, Africa's economies are the talk of both guarded optimism and cause for concern. Since the mid
DACA, A Student's Story: 'They Are The Types Of Immigrants You Want In Your Country' MICHEL MARTIN, HOST: Recently, we heard from a young immigrant from Mexico - the country from which the vast majority of DACA recipients arrived. Some 79 percent are
SCOTT SIMON, HOST: About a quarter of a million DREAMers - young people covered by DACA, the Deferred Action for Childhood Arrivals - are enrolled in college this fall. DACA has permitted about 800,000 of these undocumented immigrants who are brought
By Scott Bobb Johannesburg 07 December 2006 South Africa is marking the 10th anniversary (Dec. 10) of the signing of its constitution that formalized the demise of apartheid and the beginning of democratic rule. The charter has been described as one
By Peta Thornycroft Southern Africa 16 June 2007 Hours before the first South African-mediated talks between Zimbabwe's ruling ZANU-PF and the opposition Movement for Democratic Change (MDC) were due to begin in Pretoria, police in Harare seized the
By Terry Fitzpatrick Cape Town 13 June 2007 The World Economic Forum for Africa has opened its annual meeting to mixed news about the state of business on the continent. Africa is experiencing its greatest growth since the 1970s, but it isn't growing
Cement is a major component of concrete, the world's most widely used man-made material, an integral part of roads, bridges and buildings. But making cement requires heating limestone and other materials to very high temperatures, a process that rele
RIO DE JANEIRO, March 5 (Xinhua) -- Former Real Madrid and Bayern Munich midfielder Ze Roberto, who is set to start for Gremio in Tuesday's Copa Libertadores clash against Caracas, missed his team's final training session on Monday. Gremio coach Vand
For more on North Korea's latest nuclear test, I spoke earlier with Professor Ruan Zongze, deputy head of the China Institute of International Studies, a think tank of the Chinese Foreign Ministry.