丁酸三级戊酯

What about sleep? In slow-wave deep sleep, our glial cells rinse cerebral spinal fluid throughout our brains, 关于睡眠呢?在慢波深度睡眠时,我们的神经胶质细胞冲洗着我们大脑中的脑脊液, clearing away metabolic wast

发表于:2018-12-18 / 阅读(65) / 评论(0) 分类 TED演讲国际问题篇

So what happens when amyloid plaques accumulate to this tipping point? 所以当淀粉样斑块积累到临界点后会发生什么? Our microglia janitor cells become hyper-activated, releasing chemicals that cause inflammation and cellular damage

发表于:2018-12-18 / 阅读(87) / 评论(0) 分类 TED演讲国际问题篇

Even before scientists sort this out, this information is actually really good news for us, 即使科学家还尚未解决问题,这一好消息确实振奋人心, because it turns out that the way we live can influence the accumulation of amyloi

发表于:2018-12-18 / 阅读(74) / 评论(0) 分类 TED演讲国际问题篇

This is Scientific American's 60-Second Science. I am Adam Hamterture, got a minute? What's sixteen feet tall and 9,550 years old? Its the world's oldest tree. The worn and weathered spruce grows in Sweden's windswept tundra. But, until recently, wel

发表于:2018-12-24 / 阅读(82) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Its like the molecular version of the Joker and the Riddler teaming up against Batman. Scientists at Yale University have discovered that amyloid beta, a

发表于:2019-01-08 / 阅读(104) / 评论(0) 分类 Scientific American(三)月

1. 9/11 attack ringleader Mohamed Atta is all smiles with another hijacker on a new video reportedly Atta's last will. The Associated Press secured exclusive rights to the video from the London Sunday

发表于:2019-01-08 / 阅读(166) / 评论(0) 分类 美联社新闻一分钟2006

1. Two more Amish schoolgirls died overnight following a deadly shooting in their one-room schoolhouse in Pennsylvania Monday. That brings the total number of girls fatally injured in the incident to

发表于:2019-01-08 / 阅读(113) / 评论(0) 分类 美联社新闻一分钟2006

VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Bob Doughty. VOICE TWO: And I'm Faith Lapidus. Today we tell about Alzheimer's disease. One century after its discovery, the cause of the disease is still unknown. (MUSIC) VOICE ONE:

发表于:2019-01-11 / 阅读(61) / 评论(0) 分类 VOA慢速英语2007年(一)月

The latest developments in research into the most common form of dementia. Transcript of radio broadcast: 09 June 2008 VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. VOICE TWO: And Im Bob Doughty. Today we tell abou

发表于:2019-01-11 / 阅读(101) / 评论(0) 分类 VOA慢速英语2008年(六)月

STEVE EMBER: Im Steve Ember. BARBARA KLEIN: And Im Barbara Klein with EXPLORATIONS in VOA Special English. Today we talk about a method that helps provide low-income people with the financial services they need to improve their lives. Organizations a

发表于:2019-01-11 / 阅读(179) / 评论(0) 分类 2010年VOA慢速英语(六)月

FAITH LAPIDUS: This is SCIENCE IN THE NEWS, in VOA Special English. Im Faith Lapidus. BOB DOUGHTY: And Im Bob Doughty. Today we tell about Alzheimers disease. More than a century after its discovery, Alzheimers disease is still destroying peoples bra

发表于:2019-01-12 / 阅读(106) / 评论(0) 分类 2011年VOA慢速英语(二)月

Syrian President Bashar al-Assad is proposing to mediate between the West and Iran, telling an Italian newspaper that he's prepared to act as a go-between to improve relations that have been further strained over Iran's nuclear program. Syrian Presi

发表于:2019-01-13 / 阅读(92) / 评论(0) 分类 VOA标准英语2009年(三月)

New research suggests a relatively simple blood test might make it possible to predict who is at a higher risk for developing dementia. The most common form of dementia is Alzheimer's Disease, and currently, it can only be definitively diagnosed in a

发表于:2019-01-14 / 阅读(90) / 评论(0) 分类 VOA标准英语2011年(一月)

MRI-like Scan May Help Identify Alzheimer's Alzheimer's disease normally gets a definitive diagnosis only after the patient dies, and an autopsy finds certain distinctive structures in the brain. Recently, though, scientists have been seeking some so

发表于:2019-01-14 / 阅读(83) / 评论(0) 分类 VOA标准英语2011年(八月)

Sleep. It's something we spend about a third of our lives doing, but do any of us really understand what it's all about? Two thousand years ago, Galen, one of the most prominent medical researchers of the ancient world, proposed that while we're awak

发表于:2019-01-24 / 阅读(115) / 评论(0) 分类 英语语言学习

HEALTH REPORT - New Method to Find Alzheimer's Disease By Jerilyn Watson Broadcast: Wednesday, February 04, 2004 This is the VOA Special English Health Report. A computer picture of a brain affected b

发表于:2019-01-30 / 阅读(105) / 评论(0) 分类 健康与经济

HEALTH REPORT - New Alzheimer's Drugs Tested By Cynthia Kirk Broadcast: Wednesday, August 04, 2004 This is Phoebe Zimmermann with the VOA Special English Health Report. Researchers say two experimenta

发表于:2019-01-30 / 阅读(57) / 评论(0) 分类 健康与经济

By Dan Robinson Capitol Hill 15 November 2007 The longest-serving Republican speaker of the House of Representatives gave his formal farewell to Congress on Thursday. Dennis Hastert presided over the House for nearly a decade, a period that included

发表于:2019-02-03 / 阅读(95) / 评论(0) 分类 VOA常速英语2007年(十一月)

Let's begin by looking at what we currently understand about the neuroscience of Alzheimer's. 让我们先看看目前神经学上对老年痴呆的了解。 Here's a picture of two neurons connecting. 这是一张两个神经元连接的图。 The p

发表于:2019-02-13 / 阅读(92) / 评论(0) 分类 TED演讲国际问题篇

RIO DE JANEIRO, Jan. 25 (Xinhua) -- Former Brazil international goalkeeper Dida will miss Gremio's Copa Libertadores qualifying decider against Ecuador's Liga de Quito next Wednesday with a shoulder injury. Dida hurt his right shoulder during last We

发表于:2019-02-18 / 阅读(90) / 评论(0) 分类 英语新闻