单词:diagenetic change
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AS IT IS 2014-05-24 Cameras to Review Goals at World Cup From VOA Learning English, this is As It Is. I'm Anna Matteo in Washington. Technolgoy is changing many parts of our lives. But when it comes to sports, fans do not always like new technology.
A new study warns of the potential problems Africa faces from rising temperatures. The Nairobi-based International Livestock Research Institute (ILRI) says the continent must learn to adapt to shorter growing seasons. The report was released as the U
Farm Animals May Soon Get New Qualities With Gene-Editing This may seem impossible, but an American company is seeking to change farm animals by cutting or adding to their genes. By using a process called gene-editing, the company, Recombinetics, say
Unit 10 Test A What will our future be like? What might happen in the year 2144? How far can your imagination take you into the future? Let's see what a newspaper in New Zealand tells us. The Future W
时尚摄影师用镜头寻找另一种美 Where do you find beauty? Fashion Magazines? Music Videos? One American photographer is finding beauty in unexpected places. And a new documentary about his work might help change the traditional standards o
人的一生中,将近三分之一的时间是用于睡觉的。刚出生的婴儿几乎每天要睡20个小时;即使成年后,每夭至少要睡 6~7小时。 不管睡眠时间长短如何,睡觉看来是人必不可少的行为。这一点
The International Day for Biological Diversity, sometimes called World Biodiversity Day, is a United Nations holiday based on biodiversity issues. It started in 1993 and is held on May 22. This is the date of the Rio Earth Summit of 1992. This was a
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Irish voters will decide on Friday whether to end the countrys ban on abortion in most cases. Voters will be asked in a referendum whether the countrys constitution should be changed to remove current restrictions on abortion. A constitutional amendm
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Why bother with sex? Its a question thats bugged biologists since they first noticed that some critters do it and some dont. The answer theyve come up wi
By Alan Silverman Hollywood 27 May 2006 One of the most popular film series based on Marvel Comics superheroes becomes a trilogy and raises some interesting real-world issues about diversity and fitting in. ------------------------------------------
Scientists have identified a unique genetic mutation in about 10 percent of people with type 2 diabetes(糖尿病) studied in the United States and Europe. The discovery could help some people learn if they are at risk of developing diabetes so they
Study: Regular Exercise Can Change Our DNA 研究表明经常锻炼可以改变我们的DNA Swedish scientists say they have proven that physical exercise changes not only our health but also our genetic material. Scientists have long known that some
New Study Could Change Treatment For Asthma Most adults who have mild or moderate asthma are told to use their inhalers twice daily, even if they don't have symptoms. The medicine in those compressed-air inhalers are corticosteroids, which open a per
Scientists around the world predict that climate change will have dramatic effects on agriculture in the coming decades. So, too, will pests and pesticides, the loss of species and the need to increase food production for a growing population. Resear
时尚摄影师将镜头转向特殊人群 Where do you find beauty? Fashion Magazines? Music Videos? One American photographer is finding beauty in unexpected places. And a new documentary about his work might help change the traditional standards o
HEALTH REPORT - September 4, 2002: Melanoma Research By Nancy Steinbach (Photo - U.S. National Cancer Institute) This is the VOA Special English Health Report. Scientists have discovered a genetic cha
现代社会最大的文化迷思我们不能改变。研究证明你可以变得更加乐观,但是如果你优先考虑眼前的幸福,你会收获额外的好处。 Some people think if you are happy, you are blind to reality. But when we rese
Scientists: Gene Editing Should Stay in Laboratories 科学家称基因编辑技术应该留在实验室 Scientists are debating how to limit their newly-discovered power to change genetic structure. Scientists already modify the genes of farm animal