久久久无码人妻精品无码_6080YYY午夜理论片中无码_性无码专区_无码人妻品一区二区三区精99

 
 
 

Major progress in health through technology

2013-01-23 14:28

 

Get Flash Player

Download

From VOA Learning English, this is SCIENCE IN THE NEWS in Special English. I’m Bob Doughty.

And I’m 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 gene treatment for patients with heart disease. And we explain how American computers are helping medical workers in Zimbabwe study the condition of their patients.

A woman paralyzed from the neck down has learned to use her thoughts to control a specially-designed motorized arm. The arm is the product of years of research on mind-controlled artificial limbs.

Researchers in the American state of Pennsylvania say the motorized arm is the most advanced mind-controlled prosthetic, or replacement limb ever made. They created the device to help return some muscle control to Jan Scheuermann. She is suffering from a degenerative neuromuscular disease that paralyzed her from the neck down. She has no control of her arms and legs.

The motorized right arm has a five-fingered, fully-jointed hand. It enables Ms. Scheuermann to pick up and hold objects, and feed herself.

Neurobiologist Andrew Schwartz led the University of Pittsburgh research team that developed the prosthetic arm. He says researchers placed about 200 electrodes in the woman’s left cerebral cortex. The left cerebral cortex is the part of the brain that people use to move their right arm.

Dr. Schwartz says the electrodes recorded what the woman’s brain cells were doing when she thought about moving the arm.

“And that was enough information that we could then decode from those recordings, what the intention of the subject was, the way she wanted to move her arm and her wrist and close her hand. We could decode the information from those neurons to allow us to do that.”

Jan Scheuermann took part in a 13-week-long program to teach her brain to move the arm. But she did not need that much time. She was able to use her mind to move the robotic arm after just two weeks of training.

She reportedly told researchers that she planned to use the arm to feed herself some chocolate. When she was able to do that, it made the research team very happy.

Andrew Schwartz says his team plans to build another artificial arm, so people like Ms. Scheuermann can hold and move objects using two hands.

“And really the satisfying part is that we’re not just making a machine move, we’re actually recreating natural humanoid movements. So we’re capturing all the beauty and grace and skill of a real movement, and allowing these subjects to basically return to a certain amount of function that they used to have.”

The researchers would like to create a wireless system that helps the brain communicate with the robotic limbs. The brain’s signals would be changed into messages that computers can understand. People could then use the arms or legs in their homes without wires or help from scientists.

A report describing the prosthetic arm was published in the journal The Lancet.

A patient with an arrhythmia, or irregular heartbeat, might one day be able to have a normal heartbeat with the injection of a single gene. The experimental gene would help to create a natural heart pacemaker. This would end the need for placing an electronic device in a person’s chest to control the heartbeat.

Researchers in California created what they are calling “biological pacemaker cells” by adding a single gene to a virus. They then injected the engineered virus into the hearts of guinea pigs. The animals had been bred to suffer from arrhythmia.

The gene caused the creation of an exact copy of the sino-atrial node in the heart’s upper right chamber. Other studies have shown that this node helps to keep the heart beating normally. The gene changed heart muscle cells -- called cardiomyocytes -- into natural pacemaker cells.

Eduardo Marban is director of the Cedars-Sinai Health Institute in Los Angeles. He says the node, called S-A-N, makes up just 10,000 cells among the ten billion heart muscle cells. He says the tissue made by the inserted gene looks almost like the structure it replaces.

“If we were to give scientists who are specialized in this area the data to look at it then compare it to a genuine pacemaker cell -- which, as I said, are exceedingly rare -- to the ones we created by putting a gene into an ordinary heart cell, it’d be, they’d be hard-pressed to tell the difference.”

Dr. Marban estimates that five to six billion dollars is spent each year worldwide on electronic pacemakers for millions of patients. But these man-made pacemakers can cause life-threatening infections. And every five to seven years, the batteries that supply power must be changed. This requires another operation.

Dr. Marban says the devices are not right for all patients. And others are too sick to use them. He says researchers plan to put the experimental gene in very sick patients in about two years. They want to prove the gene is both safe and effective.

“Basically, what we are going to look for are patients who already have an electronic pacemaker, who develop a severe infection and need to have the electronic pacemaker taken away. And then, during the time the patients are free of an electronic pacemaker, they, their hearts need to be sustained by some means, and we hope that we would be able to create this biological pacemaker to keep the heart going between treatments.”

A report on the natural cardiac pacemaker was published in the journal Nature Biotechnology.

Finally, the United States has launched a program to help improve Zimbabwe’s health information management system. The program is meant to strengthen investigation and reporting of disease outbreaks and epidemics.

You are listening to a group of health workers. They include doctors and medical aides from Manicaland, an area in eastern Zimbabwe. They were happy because America’s Centers for Disease Control and Prevention had donated laptop computers and other equipment. The computers will be used to store information about patients they treat in the area.

The donation is part of a $2.1 million gift from PEPFAR -- the President’s Emergency Plan for AIDS Relief -- to strengthen Zimbabwe’s health management system.

Paula Morgan is the deputy director of the CDC in Zimbabwe.

“Health wise across the board, particularly around disease detection and surveillance, it’s important to us to capture all of them, but because we do work with the PEPFAR program, we do concentrate on the HIV and AIDS epidemic.”

One of the biggest problems facing Zimbabwe is the HIV/AIDS epidemic. The human immunodeficiency virus, also known as HIV, is the cause of the disease AIDS. The United Nations says new HIV infection rates have dropped by 50 percent in Zimbabwe. But there are still 1.2 million people infected with the virus.

The government in Zimbabwe has little money for health care programs. As a result, the country has failed to meet the targets of what health officials have called the “Abuja Declarations.” Under those goals, African governments are required to spend 15 percent of their budgets on health-related issues.

Ponesai Nyika is a director of the Zimbabwe Ministry of Health.

“This donation is really, really important. It came at a time when we really need it, because what has been happening is at the local clinic they’re using hard copies, which is a paper-based system. They record their patients in registers and tally sheets, where they just tally against the patient’s age, name and the diagnosis, the treatment that they have been given.”

Ponesai Nyika says all of that work is now done with the CDC’s donation of computers to Zimbabwe.

PEPFAR is paying a non-profit group, Research Triangle International, to give two weeks of training to health workers in Zimbabwe. Henry Chidawanyika works for the group. He says Zimbabwe needs the help.

“It is very weak in terms of the ability to deliver, mostly because we don’t have enough personnel on the ground, we don’t have enough equipment, issues of infrastructure, power, connectivity. Health information is a cornerstone of a delivery of a health system, because if you don’t know where you are, then you don’t know where to go.”

Health care workers in Zimbabwe must deal with many diseases and epidemics. A working, dependable health information system will enable them to gather information about groups like pregnant women living with HIV. Medical workers can use that information to help such women receive antiretroviral therapy and treatment for tuberculosis.

相關閱讀

Televisions stole the spotlight at the consumer electronics show

Tablet computers most wanted gift this holiday

Watching for early signs of autism in babies

Words and their stories: Belittle

(來源:VOA 編輯:Julie)

 
中國日報網英語點津版權說明:凡注明來源為“中國日報網英語點津:XXX(署名)”的原創作品,除與中國日報網簽署英語點津內容授權協議的網站外,其他任何網站或單位未經允許不得非法盜鏈、轉載和使用,違者必究。如需使用,請與010-84883561聯系;凡本網注明“來源:XXX(非英語點津)”的作品,均轉載自其它媒體,目的在于傳播更多信息,其他媒體如需轉載,請與稿件來源方聯系,如產生任何問題與本網無關;本網所發布的歌曲、電影片段,版權歸原作者所有,僅供學習與研究,如果侵權,請提供版權證明,以便盡快刪除。

中國日報網雙語新聞

掃描左側二維碼

添加Chinadaily_Mobile
你想看的我們這兒都有!

中國日報雙語手機報

點擊左側圖標查看訂閱方式

中國首份雙語手機報
學英語看資訊一個都不能少!

關注和訂閱

本文相關閱讀
人氣排行
熱搜詞
 
 
精華欄目
 

閱讀

詞匯

視聽

翻譯

口語

合作

 

關于我們 | 聯系方式 | 招聘信息

Copyright by chinadaily.com.cn. All rights reserved. None of this material may be used for any commercial or public use. Reproduction in whole or in part without permission is prohibited. 版權聲明:本網站所刊登的中國日報網英語點津內容,版權屬中國日報網所有,未經協議授權,禁止下載使用。 歡迎愿意與本網站合作的單位或個人與我們聯系。

電話:8610-84883645

傳真:8610-84883500

Email: languagetips@chinadaily.com.cn

久久久无码人妻精品无码_6080YYY午夜理论片中无码_性无码专区_无码人妻品一区二区三区精99

    青娱乐国产精品视频| 黄色一级大片免费| 成年丰满熟妇午夜免费视频| 日本a视频在线观看| 在线观看免费不卡av| 国产欧美日韩网站| 91亚洲一区二区| 日本三级免费观看| 久久久久久久香蕉| 久久久久国产一区| 99在线精品免费视频| 涩涩网站在线看| 亚欧无线一线二线三线区别| 8x8x华人在线| 福利视频999| 黄色国产精品视频| 久久这里只有精品18| 国产3p露脸普通话对白| 亚洲精品视频导航| 人妻熟妇乱又伦精品视频| 在线观看av免费观看| 欧美 日韩 国产 高清| jizzzz日本| a在线视频观看| 女人高潮一级片| 欧美三级一级片| 欧美日韩视频免费在线观看| 精品少妇无遮挡毛片| 日韩国产小视频| 中文字幕66页| 麻豆av免费在线| 北条麻妃亚洲一区| 日韩一级在线免费观看| 国产精品久久久影院| 欧美一级xxxx| 亚洲人成无码www久久久| 日本a级片在线播放| 中文字幕久久av| 已婚少妇美妙人妻系列| 国产精品久久久久久久乖乖| 成年人网站av| 黄色aaa级片| 欧美视频在线观看网站| 伊人网在线免费| 欧洲在线免费视频| 一道本在线免费视频| 亚洲精品无码久久久久久| 欧美日韩中文字幕在线播放| 五月天国产视频| 婷婷六月天在线| 欧美 日韩 国产 高清| 北条麻妃亚洲一区| 国产又爽又黄ai换脸| 夜夜夜夜夜夜操| 色播五月综合网| 日本美女高潮视频| 任你操这里只有精品| 人妻精品无码一区二区三区| 丁香花在线影院观看在线播放| 日韩不卡视频一区二区| 在线成人免费av| 在线a免费观看| 亚洲天堂av一区二区三区| 男生操女生视频在线观看| 亚洲一区二区三区四区五区xx| 欧美日韩亚洲第一| 人人妻人人澡人人爽精品欧美一区| 北条麻妃av高潮尖叫在线观看| 日本少妇高潮喷水视频| 日韩一二区视频| 国产无限制自拍| 日韩五码在线观看| 天天夜碰日日摸日日澡性色av| 奇米777四色影视在线看| 污污视频在线免费| 污污视频在线免费| 中文字幕第66页| 欧洲xxxxx| 51xx午夜影福利| 日韩欧美精品免费| 欧美深夜福利视频| av片中文字幕| 一区二区三区 日韩| 青青草原国产在线视频| 中文字幕 欧美日韩| 日本中文字幕在线不卡| 日本在线视频www色| 久久亚洲精品无码va白人极品| 男人日女人逼逼| 免费在线观看日韩视频| 欧美 激情 在线| 天天爽天天爽夜夜爽| 黄色a级片免费| 最近免费中文字幕中文高清百度| 北条麻妃在线视频| 中文字幕国产免费| 无套内谢丰满少妇中文字幕| 黄色三级中文字幕| 免费在线激情视频| 国产原创精品在线| 在线观看污视频| 国产99久久九九精品无码| 手机在线成人免费视频| 亚洲欧美一二三| 国产特级淫片高清视频| 午夜免费福利在线| 天天久久综合网| 久久亚洲国产成人精品无码区| 无码人妻h动漫| 手机版av在线| 777av视频| 自拍偷拍21p| 国产欧美久久久久| 国产一区二区视频免费在线观看| 国产欧美激情视频| 日本中文字幕网址| 91国内在线播放| 免费在线观看视频a| 国产精品久久久久9999小说| 日本熟妇人妻xxxxx| 黄色成人在线免费观看| 爆乳熟妇一区二区三区霸乳| 国产对白在线播放| 黄色国产一级视频| 天堂视频免费看| 激情视频小说图片| 黄色片在线免费| 欧美韩国日本在线| 亚洲一区二区图片| 粉嫩虎白女毛片人体| 中文字幕第50页| aa在线免费观看| 天天成人综合网| 成人免费毛片网| 国产精品久久久久7777| 亚洲精品在线视频播放| 亚洲天堂伊人网| 成人在线视频一区二区三区| 少妇av一区二区三区无码| 91日韩精品视频| 99草草国产熟女视频在线| 久久久久久久久久伊人| 日本成人在线免费视频| 国产精品入口芒果| www.色.com| 亚洲娇小娇小娇小| 欧美 日韩 亚洲 一区| 污免费在线观看| 亚洲少妇久久久| 欧美亚洲精品一区二区| 免费在线精品视频| 91亚洲精品久久久蜜桃借种| 欧美色图另类小说| www精品久久| 午夜天堂在线视频| www.com污| 污污的网站18| 久久精品视频91| 国产成人无码精品久久久性色| 男女裸体影院高潮| 日韩av福利在线观看| 天美星空大象mv在线观看视频| av黄色在线网站| 人人妻人人做人人爽| 久久精品国产精品亚洲精品色| 少妇一级淫免费播放| 国产成人无码精品久久久性色| 国产一级大片免费看| 日本精品免费视频| 亚洲欧美日韩三级| 午夜视频你懂的| 69堂免费视频| 国产免费一区二区视频| 成年人视频网站免费| 国产911在线观看| 国产女人18毛片| 亚洲高潮无码久久| 干日本少妇视频| 国产美女18xxxx免费视频| 日韩网站在线免费观看| 福利视频一区二区三区四区| www.av91| 可以在线看的av网站| 99色精品视频| 日韩视频免费在线播放| 91色国产在线| 邪恶网站在线观看| 天堂在线中文在线| 国产又粗又长又爽又黄的视频| 欧美婷婷精品激情| 五月婷婷激情久久| 91国内在线播放| 成人在线观看www| 日韩国产小视频| 丝袜人妻一区二区三区| 欧美成人三级在线视频| 欧美黄色免费影院| 亚洲国产日韩欧美在线观看| 国产福利在线免费| 亚洲综合激情视频|