spiciness is chilli pepper's best defense against seed attacking microbes.but not all chillis are hot, because producing that heat comes at a price.so says a study in journal proceeding the royal society b.researchers look at wild chilli populations

发表于:2018-12-02 / 阅读(78) / 评论(0) 分类 Scientific American(十二)月

12 收回原先的谷物生产计划 DATE=3-27-01 TITLE=AGRICULTURE REPORT - StarLink Buyback Program BYLINE=George Grow (Start at 59

发表于:2018-12-07 / 阅读(93) / 评论(0) 分类 自然探索

If you've ever stuck rigidly to a diet, managed to lose weight but then piled the pounds back on, it's not your fault. 如果你曾严格坚持节食并减肥成功,但之后体重却又反弹,这不是你的错。 After about five years, 41 per

发表于:2018-12-12 / 阅读(56) / 评论(0) 分类 实用英语

[00:02.75]Unit 19 Communication Language Awareness 4 [00:08.70]Lonesome Male of the Galapagos [00:11.60]Jo Tuckman on the Galapagos Islands [00:14.83]Celebrity is not usually a characteristic [00:17.49]associated with middle-aged giant tortoises [00:

发表于:2018-12-13 / 阅读(106) / 评论(0) 分类 北师大版高中英语模块7(选修)

This is Scientific American 60-second science.I'm Sophie Bushwick.Got a minute? It's not easy being yellow.But as now is face two separated con?? demix which threaten the pluck the fruit off x tables.Fortunately,reseachers have now x banana's DNA,pro

发表于:2018-12-24 / 阅读(69) / 评论(0) 分类 Scientific American(七)月

This is Scientific Americans 60-Second Science, Im Karen Hopkin. This will take a minute. For those of you who love a tall tale, the list of genetic variations that determine human height has just experienced a growth spurt. The findings were publish

发表于:2018-12-24 / 阅读(58) / 评论(0) 分类 Scientific American(九)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Crohns disease is a real pain in the gut. This inflammatory disorder can lead to some serious intestinal difficulties. And heredity is partly to blame: som

发表于:2018-12-24 / 阅读(64) / 评论(0) 分类 Scientific American(六)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will take just a minute. Spend any time in a bar, and sooner or later youll hear, Ill have what shes having. It sounds like a bad pickup line, but there may be an actual biological

发表于:2018-12-24 / 阅读(61) / 评论(0) 分类 Scientific American(七)月

以下段落是摘自新闻里的一些重要信息,并不是一个段落的听写。空内信息可在本新闻中全部找到,大家可以根据这些信息复述新闻。 一、泛听建议: 1、完整听一遍,掌握大意。 2、继续听,特

发表于:2018-12-26 / 阅读(66) / 评论(0) 分类 NPR边听边练

97 对人类基因数量的质疑 SCIENCE REPORT September 20, 2001: Number of Human Genes QuestionedBy George Grow (Start at 1'01

发表于:2019-01-02 / 阅读(63) / 评论(0) 分类 科技之光

我们是怎样开始了解大脑是如何工作的呢?和我们开始了解一个城市的方式一样:制作一张地图。在这个非常形象化的演讲中,艾伦琼斯展示了他的团队是怎样绘制每个小区域里开启的基因,

发表于:2019-01-05 / 阅读(63) / 评论(0) 分类 TED公开课:美妙的神经系统

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Spending your life hanging out at the seaside might sound like easy living. But for marine mussels, a day at the shore is no walk on the beach. Clinging

发表于:2019-01-08 / 阅读(67) / 评论(0) 分类 Scientific American(十)月

This is Scientific Americans' 60-Second Science. I am Cynthia Graber. This'll just take a minute. Air pollution is bad for our health, but scientists say we don't know much about the long-term effects. So researchers in Canada and the Netherlands dec

发表于:2019-01-08 / 阅读(96) / 评论(0) 分类 Scientific American(二)月

Historians often regard the latter part of the 19th century as a time of great flowering in the evolution of medicine. New insights in to how germs affect the human body, as well as advancements in microscopy, led scientists to discover the root caus

发表于:2019-01-08 / 阅读(57) / 评论(0) 分类 英语美文

Science and Technology Healthy living Mind and body 科技 健康生活 身与心 The reason loneliness could be bad for your health 孤独会对你的健康不利的原因 SCIENCE has many uses, but it doesn't often produce handy pick-up lines. 科学

发表于:2019-01-26 / 阅读(54) / 评论(0) 分类 经济学人科技系列

Books and Arts; Book Review;Human beings and dogs;Man's best friend; 文艺;书评;人类与狗狗;人类最好的朋友; Scientific research throws new light on a very old partnership 科学研究赋予这一古老的伴侣关系以新的内涵

发表于:2019-01-26 / 阅读(158) / 评论(0) 分类 经济学人文艺系列

Science and technology 科学技术 The genetics of politics 政治遗传学 Body politic 人体政治 Slowly, and in some quarters grudgingly, the influence of genes in shaping political outlook and behaviour is being recognized 在某些方面,塑造

发表于:2019-01-28 / 阅读(62) / 评论(0) 分类 经济学人科技系列

Genetically modified cells could eliminate the need for daily injections to treat type 1 diabetes, experts have revealed. 专家透露,有了基因改良细胞,1型糖尿病患者就可不必天天注射胰岛素了。 The human cell line is gene

发表于:2019-02-17 / 阅读(56) / 评论(0) 分类 阅读空间

Nor did the procedure fulfil any unmet medical need. 此程序也未能满足任何未知医疗需求。 For the child whose genome was edited to confer resistance, the claimed benefit is protection from a virus that she may never encounter 对于为产

发表于:2019-02-25 / 阅读(64) / 评论(0) 分类 经济学人综合

BEIJING, Aug. 5 (Xinhuanet) -- A study conducted by Israeli researchers at the Albert Einstein College of Medicine in New York shows that genes, rather than good eating and lifestyle habits, determine longevity, according to media reports Friday. Thi

发表于:2019-02-26 / 阅读(95) / 评论(0) 分类 英语新闻