VOA慢速英语2018 加州火灾受害者家属要求提供DNA协助确认身份

California Fire Victims Families Asked to Give DNA Officials in Northern California say a deadly wildfire that began two weeks ago is almost completely contained. 加州北部的工作人员表示，2周前烧起来的一场致命大火基本上已经全

VOA慢速英语--Study: DNA Tests Can Identify Ivory Traffickers

Researchers are using DNA evidence to fight the illegal trade in ivory. They have shown how genetic testing is able to link seizures of valuable elephant tusks to ivory traffickers. In a report, the researchers says targeting ivory smugglers could ha

万花筒 Kaleidoscope 2007-01-25&27, DNA为他洗脱罪名

This is a photo of Willie P. Williams, he was arrested back in 1985 for rape, kidnapping and aggravated sodomy. DNA testing has proven that Mr Williams is innocent of the crime he was convicted of. When he's been gone for so many years and all of a c

美国国家公共电台 NPR Her Son Is One Of The Few Children To Have 3 Parents' DNA

ARI SHAPIRO, HOST: Women from around the world have started going to a clinic in Ukraine hoping to get pregnant. The clinic is doing something that no one else in the world will do for them - make babies using DNA from three different people. Earlier

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The way we sample much of the world's oceans, to see what's living down there, is pretty basic: Ask fishermen. Or just stick a net down there, and examine what we catch. Neither method is ideal. Because you basically catch the fish and kill them. Phi

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DNA Points to Multiple Migrations into the Americas 美洲多次殖民迁移之谜 For more than ten thousand years, Alaska Native and Canadian First Nations people have lived along the Northwest coast of North America. Now, ancient remains have prov

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Pre-Listening Vocabulary cell: a single functional unit of an organism reproduce: to make another living thing paternity: the state of being ones natural parent (esp. father) forensic: scientific evidence related to a criminal investigation Humans Sh

英伦广角 蛇伤咬痕里的DNA有助于鉴定袭击者身份

Snakes still kill tens of thousands of people each year. Giving the antidote quickly can be the difference between life and death. But many bite victims cannot identify the species of their slithering assailants. Which leaves health care workers to m

VOA慢速英语2012 SCIENCE IN THE NEWS - The Search for DNA from A Creature That May Not Exist

SCIENCE IN THE NEWS - The Search for DNA from A Creature That May Not Exist BOB DOUGHTY: This is SCIENCE IN THE NEWS, in VOA Special English. Im Bob Doughty. BARBARA KLEIN: And Im Barbara Klein. Today we tell about an appeal for genetic material from

VOA标准英语2012--DNA Tests Prove Worms in Sardine Cans are Kosher

DNA Tests Prove Worms in Sardine Cans are Kosher Let's say one day you're opening up a can of sardines and you come across a worm. It is not as unusual as you might think. Unfortunately, recently, it hasn't been unusual at all, noted Rabbi Chaim Loik

DNA测试发现大象偷猎的热点地区

DNA Test Finds Elephant Poaching Hotspots DNA测试发现大象偷猎的热点地区 Theres a new weapon in the fight to stop elephant poaching: genetics. DNA testing, which is frequently used to solve crimes, has pinpointed where most of Africas ele

美国国家公共电台 NPR Nadine Burke Harris: How Does Trauma Affect A Child's DNA?

GUY RAZ, HOST: So if Moshe Szyf is right, that positive experiences can rewrite DNA and improve health, what about negative experiences? Well, about 10 years ago, a pediatrician named Nadine Burke Harris was asking herself that very same question. NA

美国国家公共电台 NPR Scientists Get Down And Dirty With DNA To Track Wild Pigs

DAVID GREENE, HOST: So biologists have invented a new way to track wild animals. They pick up on traces of their DNA. It's kind of like wildlife CSI. NPR's Rae Ellen Bichell tells us that this is helping some states track down a destructive invader.

2017年CRI Scientists build DNA from scratch to alter life's blueprint

Scientists build DNA from scratch to alter life's blueprint Yeast is a tiny ingredient of everyday life. A baker carefully adds yeast to his dough before kneading and shaping it into the perfect sized loaf. Without the yeast, the bread wouldn't rise

科学美国人60秒 SSS DNA新途径

Ancient Human DNA Found in Cave DirtDNA新途径 Fossilized skulls and skeletons found in European caves gave us our first glimpse of our ancient cousins, the Neandertals. And a finger bone, found in a Siberian cave, first indicated the existence of

访谈录 奥巴马谈种族主义，称歧视深入美国DNA

My guest today is Barack Obama, President Barack Obama. Good to be with you. I mean, the dierput deep in dictatorship. How do you justify dealing with the cashto? If I thought to myself that I being in a garage doing an interview. As a president. As

VOA常速英语2008年-Using DNA to Unravel Health Secrets

By Suzanne Chislett London 07 March 2008 Fifty years ago scientists were still working hard at cracking the human genetic code - now researchers are able to break down an individuals DNA in just a matter of hours. The advance not only allows doctors

VOA慢速英语2019 DNA技术帮助农民识别作物疾病

DNA Technology Helps Famers Identify Crop Diseases It is often difficult for farmers to identify diseases quickly enough to protect their crops and those on neighboring farms. Now, some farmers are using a simple device directly in the field to find

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2015年CRI 长江游轮遇难者DNA鉴定有望很快完成 进一步搜救工作即将开展

There are now 434 confirmed deaths and eight still missing from the capsizing of the Eastern Star on the Yangtze River. Local authorities say the cruise ship will be moved from the site to allow divers to search further. Meanwhile, DNA identification