This is Scientific Americans 60 second Science, I am Gretchen Kuda Kroen, this will just take a minute. When normal populations of healthy bacteria in the gut get out of whack, the result can be the stubborn and recurrent bacterial infection known as

发表于:2018-12-02 / 阅读(63) / 评论(0) 分类 Scientific American(一)月

When normal population of healthy bacteria in the gut get out of whack, the result can be the stubborn and recurrent bacterial infection known as Clostridium Difficile, C Dif. The mean symptom is nearly constant and debilitating diarrhea. One of the

发表于:2018-12-02 / 阅读(182) / 评论(0) 分类 Scientific American(一)月

When We Fly to Mars, Microbes Will, Too 飞向火星的不止是你,还有我 A humid bathroom is the perfect habitat for mold. But there are ways to avoid it. We can just open the window and let some fresh air in! Not so easy on a space station th

发表于:2018-12-02 / 阅读(100) / 评论(0) 分类 2017年Scientific American(十)月

Asian Bacteria Threatens Florida Orange Trees 亚洲细菌威胁到佛罗里达橘子树 Florida's citrus fruit industry is facing a serious threat from a bacteria carried by an Asian insect. The widespread infestation again highlights the danger of

发表于:2018-12-08 / 阅读(48) / 评论(0) 分类 VOA标准英语2014年(八月)

When patients show up in the hospital with a respiratory illness, they are usually given an antibiotic which do not work against viral infections. Even though most of these respiratroy infections are viral, it is estimated that in these cases antibio

发表于:2018-12-24 / 阅读(61) / 评论(0) 分类 2016年Scientific American(一)月

This is Scientific Americans 60 second Science, I am GretchenKuda Kroen, this will just take a minute. When normal populations of healthy bacteria in the gut get out of whack, the result can be the stubborn and recurrent bacterial infection known as

发表于:2018-12-24 / 阅读(59) / 评论(0) 分类 Scientific American(一)月

Pack rat. The name is synonymous with hoarding. And researchers have learned that pack rats can actually increase the range of foods theyre able to eat because of their collection of gut bacteria. Pack rats live in the American Southwest, where they

发表于:2018-12-24 / 阅读(37) / 评论(0) 分类 2014年Scientific American(七)月

This is Scientific Americans 60-Second Science. I am Christopher itagliata. Got a minute? The human microbiome means community of tiny organisms that live on us and inside us. These creators play a vital role in our health. They calibrate our min-sys

发表于:2018-12-24 / 阅读(55) / 评论(0) 分类 2014年Scientific American(十)月

this is scientific american 60 seconds science. i'm (name). got a minute? this thanksgiving as you savor your turkey in stuffing, you have something else to give thanks for: the army of microbes that help you digest the feast.cause when you eat you a

发表于:2018-12-24 / 阅读(65) / 评论(0) 分类 2015年Scientific American(十一)月

You might blame your pets for shedding all over the house, but we humans do it, too, and our staff is alive. We are constantly meeting microbes around us, and this is coming from shedding our skin, from exhaling, and our hair, and we are just full of

发表于:2018-12-24 / 阅读(42) / 评论(0) 分类 2015年Scientific American(九)月

Traditional Sushi Eaters Have Specialized Gut Bacteria If you want to shell a walnut, it helps to have a nutcracker. And if you want to digest seaweed, it helps to have the right enzymes. Now, a study in the journal Nature shows that Japanese peopleb

发表于:2019-01-02 / 阅读(118) / 评论(0) 分类 60秒科学

Lymphocytes - white cells involved in the immune response. B lymphocytes are so called because they mature in bone while T lymphocytes mature in the thymus. Both cells look alike until they recognise

发表于:2019-01-03 / 阅读(63) / 评论(0) 分类 医务英语

By Greg Flakus Mexico City 22 March 2006 watch Water Forum report At the Fourth World Water Forum in Mexico City, 11,000 people representing 130 nations have been looking for ways to protect the vital

发表于:2019-01-11 / 阅读(129) / 评论(0) 分类 2006年VOA标准英语(三月)

SCIENCE IN THE NEWS - Anthrax Has Been Widely Feared Since the 2001 Anthrax Attacks in the United BARBARA KLEIN: This is SCIENCE IN THE NEWS, in VOA Special English. Im Barbara Klein. CHRISTOPHER CRUISE: And Im Christopher Cruise. Today we tell about

发表于:2019-01-12 / 阅读(51) / 评论(0) 分类 2011年VOA慢速英语(十一)月

Industrial Livestock Farms Linked to Staph As economies grow in developing countries, more of them are adopting a Western-style diet. That means eating a lot more meat. As a result, the number of industrial or factory livestock farms has increased. B

发表于:2019-01-14 / 阅读(83) / 评论(0) 分类 VOA标准英语2013年(七月)

Researchers: New Nanoparticles May Replace Chemicals in Pesticides 研究人员表示新的纳米粒子可能取代化学农药 Using pesticides to battle harmful bacteria that attack fruit and vegetables has its downside, releasing harmful chemicals

发表于:2019-01-14 / 阅读(108) / 评论(0) 分类 VOA标准英语2015年(八月)

This is Scientific American -Sixty Seconds Science. I'm Sophie Bushiwick. Got a minute? During a physical exam, doctors pick up a lot from their patients, including that patient's bacteria. To keep infections from spreading, physicians try to always

发表于:2019-01-20 / 阅读(56) / 评论(0) 分类 2014年Scientific American(三)月

What's the liveliest part of your kitchen, in terms of harboring bacteria? Is it the cutting board? The dish sponge? Or maybe your coffeemaker? Because even though caffeine has antibacterial effects, it turns out espresso machines can harbor a whole

发表于:2019-01-20 / 阅读(67) / 评论(0) 分类 2017年Scientific American(二)月

Bacteria Thrive on Ocean Plastic Debris 海洋中的塑料碎片上滋养大量细菌 Plastic pollution in the ocean is harboring colonies of bacteria that could be harmful, not only to marine animals, but also to humans. 海洋中的塑料污染滋生

发表于:2019-02-01 / 阅读(51) / 评论(0) 分类 VOA常速英语2013年(九月)

If we have been wet, then we want to look for nutrients and food sources that could support microbes. The water ice is proof of a valuable resource for any life forms still clinging(附着) beneath the surface and for future travelers. We now know th

发表于:2019-02-03 / 阅读(122) / 评论(0) 分类 自然百科2012年