单词：retinal pigment cells
单词：retinal pigment cells 相关文章
This is scientific Americans 60 second science, I am Sophie Bushwick. got a minute. Tens of millions of years ago, cephalopods were hiding from their enemies in clouds of ink. And it turns out that cuttlefish today produce ink thats almost identical.
Scientific American(五)月
(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
托福听力短文
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
英语听力文摘 English Digest
Two studies of perception: the retinas of depressed people are far worse at responding to contrast; people doubt statements more when the speaker has a foreign accent. A couple of studies on perception. First, theres now visual data to back up the id
60秒科学
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
科技之光
Now, heres something you dont see every day: scientists cure color-blind monkeys. According to a report published online in the journal Nature, researchers have used gene therapy to allow color-blind squirrel monkeys to look at their fruit in a whole
Scientific American(九)月
A couple of studies on perception. First, theres now visual data to back up the idea that everything looks kinda gray when you feel blue. Researchers examined how the retina responds to different black-and-white contrast situations. They did the test
Scientific American(七)月
When people suffer from a migraine, they often retire to a cave-like dark room. But exactly why does bright light hurt the migraine sufferer? A possible answer was published this week in the online issue of journal Nature Neuroscience. A big clue was
Scientific American(一)月
Imagine Van Gogh's paintings of yellow sunflowers. Now imagine the flowers brown. Eh, not so good. Sadly, we may someday see what that would look like. Because the bright yellow paints on the canvas are slowly turning muddy. Now, an international tea
Scientific American(二)月
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
自然百科2009年
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
VOA2003（上）-健康资讯
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
VOA慢速英语2007年（四）月
TOKYO, Feb. 1 (Xinhua) -- Japan's Ministry of Health, Labor and Welfare on Wednesday approved transplant of retinal cells to treat patients using induced pluripotent stem (iPS) cells derived from another person. According to Japan's public broadcaste
英语新闻
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
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Hilary Duff - Come Clean Come Clean Hilary Duff Let's go back Back to the beginning Back to when the earth, the sun, the stars all aligned 'Cause perfect didn't feel so perfect Trying to fit a square into a circle Was no life I defy Let the rain fall
好听的英文歌曲
Idiom: Run before you can walk( be patient ) Hit the book： Retinal detachment Macular degeneration Cataract Light sensitivity Blurry Side effect Randomly Respectively Optical And high myopiawhere the eyeball stretches and becomes too longisn't just
趣味青春英语
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
英语听力文摘 English Digest
WASHINGTON, Nov. 14 (Xinhua) -- Nearly a fifth of all Americans 12 years or older have hearing loss so severe that it may make communication difficult, according to a new study led by Johns Hopkins University researchers and published Monday in the A
英语新闻
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
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