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One of the leading researchers in the field of protein folding is David Baker of the University of Washington, in Seattle. 西雅图华盛顿大学的David Baker是蛋白质折叠领域研究者的领军人物之一。 For the past 20 years he and hi

Earth and Sky:Acid Rain 酸雨

Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J

VOA标准英语2013--Liberian Refugee Gets New Face After Devastating Acid Burn

Liberian Refugee Gets New Face After Devastating Acid Burn Henry Cole has lost count of how many times hes been wheeled into surgery. In the last two years, Cole has had more than a dozen procedures. And there are more to come. But he has no complain

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[00:00.00]Dean accent tap generally speaking [00:05.15]迪安(男名) n.口音；音调 n.(自来水等的)龙头 一般说来 [00:10.29]eastern notice differently Ottawa [00:15.43]adj.东方的;东部的 vt. n.注意;认识 adv.不同地 n.渥太华

VOA慢速英语--研究人员通过转基因来增加玉米营养

Researchers Genetically Modify Corn to Increase Nutrition Researchers in the United States say they have discovered how to genetically engineer corn to produce a kind of amino acid usually found in meat. The result is a food with increased nutrition

知性英语－Acid rain 酸雨

How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t

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Section 28 Acid Rain 50 years ago, no one talked about acid rain. Then we didn't really know the harm it was causing to the world. Today almost every adult and school child is aware of acid rain and i

专业术语—口腔生理学术语A2(英文详解)

Ameloblasts- cells which differentiate from ectoderm and secrete enamel during tooth development. Amino acids - building blocks of proteins containing a carboxyl group (COOH) and an amino group(NH2) b

HEALTH REPORT - Folic Acid Reduces Fetal Deaths

HEALTH REPORT - October 23, 2002: Folic Acid Reduces Fetal Deaths By Nancy Steinbach This is the VOA Special English Health Report. A new study in Sweden has confirmed another important health effect

VOA慢速英语2013 Can Folic Acid Prevent Childhood Autism?

Can Folic Acid Prevent Childhood Autism? From VOA Learning English, this is the Health Report in Special English. A new study found that women who took folic acid supplements in early pregnancy were less likely to have a child with autism. Folic acid

AS IT IS 2016-02-13 Work Soothes Pain of Acid Attacks In India

AS IT IS 2016-02-13 Work Soothes Pain of Acid Attacks In India A caf in India is hiring women who once stayed in hiding after being attacked with acid. One woman, Dolly Kumari, says she stayed inside for two years after a man threw acid on her. He wa

Are Children Taking Too Many Tests?

Are Children Taking Too Many Tests? Urban school systems in the U.S. give too many tests, says a new study. President Obama agrees. In an open letter to parents, he asks: Ive got a pop quiz for parents and teachers across the country. If our kids had

VOA标准英语2012--Acid Attacks Continue in Cambodia Despite Harsher Punishments

Acid Attacks Continue in Cambodia Despite Harsher Punishments For Som Bunnarith, memories of the day acid violence changed his life forever are as vivid in his mind as the scars on his skin. When it splashed on me, it felt hot. It even burned through

VOA标准英语2012--Pakistani Acid-Attack Victim Enjoys New Life in Texas

Pakistani Acid-Attack Victim Enjoys New Life in Texas After taking the oath of citizenship, Julie Aftab celebrated. I have waited eight-and-a-half years to hear those words, and those words mean so much to me, she said. Ten years ago, when she was 16

VOA常速英语2014--Use of Acid Attacks for Punishment Persists in Pakistan 巴基斯坦仍存在泼洒硫酸作为惩罚

Use of Acid Attacks for Punishment Persists in Pakistan 巴基斯坦仍存在泼洒硫酸作为惩罚 Despite laws against acid attacks, the practice of pouring acid on men, women and children as a form of punishment continues in Pakistan. Two victim

VOA标准英语2013--Magnetic Ring Used to Stop Acid Reflux

Magnetic Ring Used to Stop Acid Reflux Heartburn is usually linked to gastric acid that reaches the esophagus when a weak muscle does not close as it should after swallowing. When stomach juices back up into the esophagus, the acid can cause a burnin

VOA标准英语2013--Folic Acid Supplements Shown To Reduce Risk Of Autism

Folic Acid Supplements Shown To Reduce Risk Of Autism Green, leafy vegetables, fruits and nuts naturally contain folate, a B vitamin that helps the body make healthy new cells. Most pre-natal vitamins include folic acid because it protects against de

VOA常速英语2007年-Acid Attacks Are a Growing Form of Revenge in U

By Birungi Machrine Kampala 26 November 2007 Attacks using acid are becoming more frequent in Uganda. Up to 2003, there were only 145 recorded attacks, but over the last three years, there have already been 87. Survivors often suffer from severe emot

2007年VOA标准英语-Folic Acid Linked to Colon Polyps

By Melinda Smith Washington, D.C. 07 June 2007 For years, doctors urged women to take folic acid if they planned to get pregnant. Then researchers discovered the nutrient helped reduce the risk of a heart attack. But now a new study shows folic acid

新西兰英语 172 Folic Acid in Bread

On September 18th, all New Zealand bread was going to have folic acid added to it. However, now the government has decided to wait three years. New Zealand and Australia have an agreement about food standards. Australia is going to add folic acid to