[医] 皮肤色素细胞

【英语时差8,16】背后的蓝色胎记

Parents of East Asian, East African and Native American descent are not usually surprised when their babies are born with distinctive blueish-gray or blueish-green birthmarks on their backside. Eighty to ninety-five percent of infants from these ethn

发表于:2018-12-03 / 阅读(89) / 评论(0)

英语时差8，16

科学美国人60秒 SSS Hair Cells Could Heal Skin Sans Scars

Long ago, before BandAids, or even medicine of any kind, our ancestors evolved to heal cuts themselves. If you got sliced open, the body blocked it up, to prevent blood loss, water loss, infection. But as we gained that powerwe sacrificed something e

发表于:2018-12-24 / 阅读(131) / 评论(0)

2017年Scientific American(一)月

托福听力短文 II-01-2

(WA) Human populations near the equator have evolved dark skin over many generations because of exposure to the fierce rays of the Sun. A similar phenomenon has also occurred in other parts of the animal kingdom. The African grass mouse is a good ex

发表于:2018-12-30 / 阅读(112) / 评论(0)

托福听力短文

英语听力文摘 English Digest 569、为何有些狗身上有斑点？

Why Does Spot Have Spots? In dogs with multicolored coats, white areas have no pigment cells. Black, brown or yellow areas, on the other hand, get their color from special pigment cells. When a dog is just an embryo, these pigment cells travel from t

发表于:2018-12-31 / 阅读(96) / 评论(0)

英语听力文摘 English Digest

原版英语小短文 149. Cancer Cells or Fat Cells?

Norm woke up to go to the bathroom. He looked in the bathroom mirror. That bump used to be smaller. It was on the side of his nose. The bump looked puffy. He touched it. It wasn't hard. It didn't hurt. It wasn't a different color. Maybe it was just s

发表于:2019-01-02 / 阅读(133) / 评论(0)

原版英语小短文

SCIENCE IN THE NEWS - Acne, Eczema and More: Scratching the

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

发表于:2019-01-02 / 阅读(110) / 评论(0)

科技之光

SSS 2008-12-09

Chinese medicine has been getting some props lately. A couple of recent studies have demonstrated the medical potential of traditional treatments. Part of the challenge of AIDS is that immune cells lose their ability to divide and thus their disease

发表于:2019-01-08 / 阅读(139) / 评论(0)

Scientific American(十二)月

SSS 2010-11-08

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? One of the dreams of biomedical scientists is to be able to transform adult cells into other kinds of cells. And thus avoid some of the ethical concerns of working with

发表于:2019-01-08 / 阅读(149) / 评论(0)

Scientific American(十一)月

英语听力：自然百科为何婴儿大多拥有蓝色眼睛？

Hi, its Kasey-Dee Gardner for Why? Tell Me Why? This week we received a question about baby eye color. The question was why are most babies born with blue eyes?. And I wasnt sure that was a true statement, but it is in fact a true statement. Actually

发表于:2019-01-09 / 阅读(107) / 评论(0)

自然百科2009年

Skin Disorders

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

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VOA2003（上）-健康资讯

VOA慢速英语 2007 0403b

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

发表于:2019-01-11 / 阅读(151) / 评论(0)

VOA慢速英语2007年（四）月

VOA慢速英语--科学家制作逼真的恐龙模型

AS IT IS 2016-10-09 Scientists Create Realistic Model of Dinosaur 科学家制作逼真的恐龙模型 British scientists have created what they believe is the best three-dimensional model of a dinosaur ever built. They say the model is almost the ex

发表于:2019-01-12 / 阅读(208) / 评论(0)

2016年VOA慢速英语(十)月

美国国家公共电台 NPR Genetically Altered Skin Saves A Boy Dying Of A Rare Disease

ROBERT SIEGEL, HOST: We're going to hear now how doctors in Europe used genetically engineered skin cells to treat a child who was on the verge of death from a rare inherited disease. The treatment represents a notable success for the field of gene t

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2017年NPR美国国家公共电台11月

HEALTH REPORT - Fetal Skin Cells May Treat Burns

HEALTH REPORT - Fetal Skin Cells May Treat Burns By Caty Weaver Broadcast: Wednesday, September 21, 2005 I'm Shep O'Neal with the VOA Special English Health Report. A method tested in Switzerland may

发表于:2019-01-30 / 阅读(110) / 评论(0)

健康与经济

VOA常速英语2007年-Scientists Reprogram Skin Cells to Act Like Emb

By VOA News 20 November 2007 Two separate teams of scientists say they have transformed ordinary human skin cells into ones that look and act like embryonic stem cells. Laboratory teams at universities in the United States and Japan Tuesday announced

发表于:2019-01-31 / 阅读(95) / 评论(0)

VOA常速英语2007年（十一月）

每天两餐西红柿永葆肌肤年轻

At this rate, scientists will have to come up with a better description for the tomato than mere 'superfood'. While it has long been credited with cutting cholesterol and preventing some cancers, the fruit now appears to have two more healthgiving be

发表于:2019-02-06 / 阅读(121) / 评论(0)

阅读空间

10个可替换的人体器官

Human bodies are frail, easily damaged packages full of parts that can never fully come back once lost. Luckily, researchers worldwide are working on replacing every bit of the body to make us all cyborgs. 人的身体是十分脆弱的，有些娇弱的

发表于:2019-02-08 / 阅读(450) / 评论(0)

阅读空间

英语听力文摘 English Digest 151、当头发变白

Your teenage son wrecks the car. Your daughter shows up with her recently paroled boyfriend. These are the sorts of things that can make your hair turn gray overnight. Actually, it's impossible for hair to completely change color overnight. Hair colo

发表于:2019-02-16 / 阅读(118) / 评论(0)

英语听力文摘 English Digest

生活中最令人沮丧的真相

Q: What is the saddest truth about life? 生活中令人沮丧的真相是什么？获得9.5k好评的答案@Dushyant Bhati Half the world's starving; the other half is trying to lose weight. 世界上有一半的人正在挨饿，另一半的人却在

发表于:2019-02-18 / 阅读(121) / 评论(0)

阅读空间

《柯南脱口秀》第46期:成为爵士乐手

I didn't know this about you,cause I'm a big,I told you I'm a huge fan of the show backstage,but I'm shocked at how tall you are. 我不知道你的这一点我在后台跟你说我很喜欢这部剧但你居然有这么高 It's unusual.Actually,w

发表于:2019-03-04 / 阅读(183) / 评论(0)

柯南脱口秀

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