单词：pacemaker cells
单词：pacemaker cells 相关文章
Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only withi
新东方背诵文选
Evidence is seen for a possible cause of solid tumors, but many questions remain. Transcript of radio broadcast: 24 June 2008 This is the VOA Special English Health Report. Some experts predict that doctors will someday use stem cells to treat many
VOA慢速英语2008年（六）月
SCIENCE IN THE NEWS - Major Progress in Health Through Technology From VOA Learning English, this is SCIENCE IN THE NEWS in Special English. Im Bob Doughty. And Im Faith Lapidus. Today, we tell about a woman who can use signals from her brain to move
2013年VOA慢速英语(一)月
An international team of scientists at a U.S. university is investigating whether 'cooking' cancerous tumors using tiny nanoparticles in a magnetic field might be an effective and useful treatment. Preliminary findings suggest they may be on the righ
VOA标准英语2010年(十一)月
Alzheimer's disease or AD is an illness that seriously affects senior citizens. It causes memory loss, and patients may even gradually lose some of their basic physical abilities. But now researchers in the U.S. are using technology to reduce memory
英闻天下
Pacemakers are expensive. Though some pacemaker manufacturers have dropped the price down to $800 in poorer countries, thats still out of reach for many. One to two million people die each year because they dont have access to this life-saving techno
Scientific American(十)月
Norm woke up to go to the bathroom. He looked in the bathroom mirror. That bump used to be smaller. It was on the side of his nose. The bump looked puffy. He touched it. It wasn't hard. It didn't hurt. It wasn't a different color. Maybe it was just s
原版英语小短文
1. NASA will have to try again tomorrow. Bad weather forced Mission Control to call off today's scheduled launch of Discovery at the last minute. NASA will try again tomorrow but bad weather is still
美联社新闻一分钟2006
英语短文：Cells and Temperature Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow ra
英语小短文
This is the VOA Special English Health Report. A pacemaker is a small device that doctors place in people with an abnormal heartbeat. If a heart beats too slowly, the pacemaker will use electrical signals to help set a normal rate. Some devices inclu
2010年VOA慢速英语(六)月
Major Progress in Health Through Technology From VOA Learning English, this is SCIENCE IN THE NEWS in Special English. Im Bob Doughty. And Im Faith Lapidus. Today, we tell about a woman who can use signals from her brain to move a robotic arm. We tel
2013年VOA慢速英语(五)月
FAITH LAPIDUS: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. CHRISTOPHER CRUISE: And Im Christopher Cruise. Today, we will tell about possible hope for children suffering from damage to their nervous system. We will also tell
2011年VOA慢速英语(二)月
'Serial Killer' Cells Demolish Leukemia Tumors U.S. researchers say they've been able to modify a patient's immune system T cells, turning them into serial killer cells which zero in on cancer and obliterate it. Its being called a breakthrough in the
VOA标准英语2011年(八月)
Volunteers Help Scientists in Search for Cheap Solar Cells Most of today's solar cells are silicone-based and their manufacture requires sophisticated machinery and expertise. An average home in the United States uses between 20 and 24 kilowatt hours
VOA标准英语2013年(七月)
Australian researchers may have discovered a new way to treat hearing loss in infants. And the secret lies in the NOSE. Our reporter Li Dong has the details. Noses comes in all shapes and sizes, and Australian scientists are now trumpeting a new use
世界各地新闻集锦
From VOA Learning English, this is SCIENCE IN THE NEWS in Special English. Im Bob Doughty. And Im Faith Lapidus. Today, we tell about a woman who can use signals from her brain to move a robotic arm. We tell about efforts to develop an experimental g
英语语言学习
Beating Heart Tissue from Stem Cells In a study in the journal Science, researchers explain how they used mouse embryonic stem cells and microchip technology to create heart muscle tissue that actually beats. Cynthia Graber reports One of the goals o
60秒科学
> 39 脂肪中的茎细胞有助于治疗糖尿病 DATE=4-26-01 TITLE=SCIENCE REPORT- Stem Cells in Fat BYLINE=Nancy Steinbach (Start at 59
科技之光
HEALTH REPORT - Fetal Skin Cells May Treat Burns By Caty Weaver Broadcast: Wednesday, September 21, 2005 I'm Shep O'Neal with the VOA Special English Health Report. A method tested in Switzerland may
健康与经济
Alzheimer's disease or AD is an illness that seriously affects senior citizens. It causes memory loss, and patients may even gradually lose some of their basic physical abilities. But now researchers in the U.S. are using technology to reduce memory
英闻天下