求助！关于许爱军老师的高级视听这门课

ktcc

谁上过？站内发短信联系我一下好吗？有急事。谢谢！<!--editpost--><br /><br /><br /><div><font class='editinfo'>此帖由 ktcc 在 2006-04-06 13:30 进行编辑...</font></div><!--editpost1-->

amyguan

<p>开始看friends，被骗去上，后来就天天CN*，晕了</p>

白鹤

上过..........

mangdian

<p>什么事呀</p><p>我也上过：P</p>

amyguan

<p>邮箱号我忘了。这是他上课用的CN*~还有一篇弄丢了~</p><p>1. Eradicating Polio<br />Health officials of the United Nations say they’re setting a final countdown to wiping out polio worldwide. The original goal was to make the world polio free by the end of year 2000. That deadline will be missed. CN*’s medical correspondent Rhonda Rowland explains why.<br />Everyday thousands of children around the world get vaccinated against polio, the crippling disease is a remote threat in the Americas where it’s been eradicated since 1991. In other parts of the world, however, the threat of polio is still very real. <br />Dr. Jeffery Koplan, US Centers for Disease Control and Prevention <br />“Somewhat we eradicated the disease worldwide, there remains a threat to every… anyone else in the world who isn’t immunized against it, and so we continued to provide vaccinations for young children.” <br />But health officials believe the polio vaccine will soon be a part of the history. <br />Dr. Ciro De Quadros, World Health Organization<br />“The disease is eradicable. We have good vaccine to eradicate the disease too. All the countries are committed.” <br />There has been tremendous progress. Three years ago, polio was present in more than 60 countries. Now just 30 countries remain, most are in sub-Saharan Africa and Indian subcontinent. And they are the most challenging to vaccinate. <br />Dr. Jeffery Koplan, US Centers for Disease Control and Prevention <br />“We have to provide vaccinations in places where people are being killed daily in armed conflict. In some of the countries where we are working in, There are the worst natural disasters going on, cyclones, floods, typhoons, and yet the eradication effort is continuing on a daily basis. 12 years ago, more than 350 thousand children were paralyzed from polio. In 1999, there were just over 7,000 new cases. The financial cost of wiping out polio worldwide is tremendous. There are a number of donors, including the World Health Organization and Rotary International, as well as individuals, such as Bill Gates and Ted Turner. But the biggest contributor is the CDC, supported by American taxpayers. Now the World Health Organization says they need to raise at least another 450 million dollars in emergency funds to complete the job. <br />Dr. Ciro De Quadros, World Health Organization<br />“But this is really very, very, very little money. Remember when polio is finally eradicated, there’ll be savings to the world.” An estimated savings of one and a half billion dollars a year. Health experts believe they will see the last case of polio in the next year or two. Rhonda Rowland, CN*, Atlanta.</p><p>2. Polio in Somalia<br />Twelve years ago the World Health Organization vowed to eradicate polio by the year 2000. They almost succeeded. But in Somalia, war and wide spread poverty have allowed the disease to resurface. CN*’s Mike Maloy reports on the United Nations efforts to banish polio from Somalia once and for all.<br />Aid workers from the United Nations Children’s Fund, UNICEF, are inoculating their way across Somalia, village by village. With the help of clan elders, they are bringing polio vaccine to a country the World Health Organization calls one of the worst polio affected spots in the globe. They are met by mothers with small children strapped to their backs. Some of the women have walked for miles in sweltering heat to have their children vaccinated. UNICEF hopes to give the oral vaccine to 1.4 million Somalia youngsters by early November. <br />Mohamed Ahmed UNICEF Field Officer<br />“Our plan is to vaccinate all the children in the different regions, a hundred percent of all the children in the different regions. And that’s the target we are looking for. That’s the target we are shooting for. And the communities are ready to do that. They are very helpful in their education, in supporting us in their education, because they themselves are involved, and they are vaccinating their children.” <br />Health officials blamed the bitter ten-year war and wide spread poverty for the prevalence of polio in Somalia. Fighting continues in some areas. For a time, vaccinations were delayed by skirmishes in and around Mogadishu, the remnants of a decade of instability and anarchy. Mike Maloy CN*. </p><p>3. Ebola in Uganda<br />Doctors in Uganda expect to see more cases of the deadly Ebola virus in the coming days. Health care workers are going into the countryside and communities surrounding Gulu where the outbreak is centered. CN*’s correspondent Charlayne Hunter-Gault reports that even without including those outlying areas, the number of cases is rising.<br />In the last 24 hours, at least 13 new cases have been reported which is the highest number of any in the last two weeks in the 24-hour period. There is a real concern that many of the people who are infected have not presented yet, because they are not aware of what’s wrong with them. And this is one of the great tragedies of this disease. Apparently if it does present early and people get to the hospitals, they can be treated and can survive, although there is no known cure for ebola.” <br />Experts say the ebola virus kills up to 90% of those it infects. </p><p>4. Conjoined Twins<br />One of a pair of conjoined twins died in a British hospital a short time ago, after 20 hours of surgery to separate her from her twin. Doctors at Saint Maria Hospital in Manchester say the surviving infant remains in critical but stable condition. Their parents opposed the surgery but doctors argue that both infants would die if they didn’t operate. A British court ruled that the operation should go ahead. Protesters earlier gather outside the hospital to oppose the surgery.</p><p>5. Paradox of Summer<br />Gupta: It’s a paradox of summer. Many people think they look healthier with a tan, but as any good doctor will tell you, too much time in the sun, especially without sunscreen, can lead to cancer.<br />Christy Feig, CN* Medical Correspondent: More than one million cases of skin cancer will be diagnosed in the US this year. Jimmie Goetze’s turn came two years ago.<br />Jimmie Goetze, Skin Cancer Patient: One day my---we had our grandson visiting us, and so I had to take the shirt off and, go in the pool with him.<br />Feig: Later that day she found a bright red spot on her back. It turned out to be melanoma.<br />Goetze: I was scared. I was very scared. I knew that melanoma is deadly.<br />Feig: But it’s not necessarily one exposure that gives you skin cancer.<br />Dr. Lisa Kauffman, Georgetown University Hospital: If you’ve had multiple sunburns, you get to a point where the cell’s DNA can no longer make the necessary repairs, and the damaged cells just continue to multiply. <br />Feig: There are three types of skin cancer, all can be prevented with a few simple steps. Avoid the sun between 10:00 am and 4:00 pm. If you must go out, wear a wide-brimmed hat. Use sunscreen regularly. An SPF of 30 blocks about 96% of the sunburning rays, and make sure it’s put on correctly. <br />Kauffman: The best way to put on sunscreen is to put it on, wait 10 or 15 minutes, and put on another coat.<br />Feig: Pay special attention to moles that have changed and rough, red areas that may be precancerous lesions. If caught early, these spots can be treated in the doctor’s office. And don’t be fooled, the sun goes right through that T-shirt you wear at the beach to protect your shoulders.<br /></p>

amyguan

<p>Health Tips<br />Tea drinkers, take heart. Research done in the Boston area indicates drinking at least two cups of black or green tea a day could reduce your chance of dying after a heart attack by 44 percent. Scientist believe there’s something in tea that protects the heart. Researchers studies 1,900 heart attack survivors for four years. Even the patients who drank fewer than 14 cups a week had a 28 percent lower death rate than those who didn’t drink any tea at all.<br />And finally, “Consumer Reports” magazine went straight to the source to find out which diet works best. According to 32,000 dieters the magazine talked with, the overwhelming majority of successful losers said exercise made the difference, not food deprivation.<br />However, the dieters stayed with traditional healthy foods, and most claimed it was dieting on their won, and not on expensive diet programs, that worked.</p><p>Choice of Sunscreen<br />Choice of Sunscreen<br />Rowland<br />Searching, searching, searching. For what? The perfect sunscreen. SPF 15, 30, 45. UVA, UVB. Parsol 1789. Zinc oxide. What doest it all mean? We asked dermatologist Dr. Rutledge Forney to help us cope with the sun. <br />Look at all these sunscreens here, a pretty good selection?<br />Dr. Rutledge Forney, Dermatologist<br />There’s a lot to choose from here, isn’t there?<br />Rowland<br />A good starting point. SPF, sun protection factor.<br />Take a look at Blue Lizard here. We have the 30 right next to a banana boat with 15. so which one do you go for?<br />Forney<br />Well, I advise all my patients for any sort of direct sun exposure in sports or gardening or anything by the beach that they use a 30 or higher.<br />Rowland<br />We need the higher SPF, she says, because most of us don’t put enough on, or put it on often enough.<br />We hear about UVA, UVB. What’s the difference? And does it matter if we have protection against both?<br />Forney<br />UVB protects against burning, and UVA protects against aging. And of course, you want to have both levels of protection.<br />Rowland<br />That’s worth repeating. UVB rays burn and cause melanoma skin cancer. The higher the SPF rating, the more you block those deadly rays. UVA ages us, gives us wrinkles. Ninety-five percent of the sun’s rays are UVA. They don’t burn, but they do damage skin.<br />Is there any system to know how much protection you’re getting against the UVA?<br />Forney<br />Not yet. And that’s why we know that Parsol 89 is very effective against UVA.<br />Rowland<br />So is zinc.<br />Let’s talk about men. Men don’t like putting on sunscreen, do they?<br />Foirney<br />They don’t like putting anything on.<br />Rowland<br />So if for my husband, what would you suggest here? Or somebody has a teenage son, and they’re trying to get him to put on some sunscreen?<br />Forney<br />There are dry lotion sunscreens and fast drying.<br />Rowland<br />As for kids, find something that makes them want to put it on. Here, parents deserve kudos.<br />Forney<br />We really are finding, particularly with kids, they say they don’t give me a history of having had blistering sunburns, because parents have really been aware of this, and pediatricians have been talking about it.<br />Rowland<br />However, Dr. Forney gives a new warning to parents: Keep your kids away from tanning beds. They beam UVA rays, enough of them that skin cancer, at least the less deadly type, is up dramatically among teens and those in their 20s.<br />So, is there a perfect sunscreen? The perfect one is the one you like enough to use.</p><p>The Stress Effect<br />The Stress Effect<br />Rhonda Rowland, CN* Medical Correspondent: Heavy traffic, job pressure, working couples with kids, cell phones, emails, pagers and Palm Pilots. Do you wonder what all that stress is doing to do? <br />Dr. Jeffery Kelsey, Psychiatrist: I have to take this real quick.<br />Rowland: OK.<br />Kelsey: Because I have five more minutes of being on call today.<br />Rowland: Psychiatrist, Dr. Jeffery Kelsey, sees it every day in his practice. Stress can set the stage for depression.<br />Kelsey: Well. We think that the vulnerability of getting depression is about a third from genetics, what we inherit, and is about two-thirds from those experiences that we have.<br />Rowland: Stress you can’t control appears to do the most harm, accidents, death, job loss, the events of 911, even the turbulence of Wall Street.<br />With Wall Street, a lot of pressure now, especially for CEOs’ performance and to deliver. What kind of impact does that have?<br />Kelsey: There are clearly going to be some people for whom that stress is going to hit the threshold where, yes, they are going get an episode of depression.<br />Dr. J. Douglas Bremmer, Author of “Does Depression Damage the Brain”: Dr. J. Douglas Bremmer studies the brain. He says you can actually see how stress assaults us, targeting and shrinking the brain’s hippocampus, where we do most of our thinking.<br />So is it the disease that does this or is it like the stressors that happen over time that causes this area to get smaller?<br />Bremmer: We don’t know. It could be stress causes changes in the brain that lead to depression.<br />Rowland: And Bremmer also found that depression is cumulative. The more bouts you have, the more damage to your brain, and it accelerates. The more times you suffer depression without treatment, the more likely you are to suffer again.<br />Bremmer: We know that stressful life of events make it more likely that someone who has had depression in the past will relapse.<br />Rowland: Also startling, it's striking at a younger age. The typical victim used to be middle aged. Now, it’s common to see depression in the late teens or early twenties. <br />So what do you look for? We all feel blue at times, but if you feel that way all day for two weeks, look for at least five of these symptoms: changes in appetite and weight, sleeping too little or too much, a lack of enthusiasm, not feeling pleasure from your usual activities, restlessness or irritability, feelings of worthlessness or guilt, difficulty in thinking, concentrating or making decisions, thoughts of death or suicide.<br />Kelsey: And probably the key is, if you are watching this and wondering, hmm, I wonder if I have depression, the best thing to do is go and see someone to get that evaluated. <br />Rowland: Remember, depression is one third genetic. Some people are immune to stress. Also, say doctors, almost everyone who is depressed can be helped and return to a normal life.<br /></p>

amyguan

<p>Red Fruits Benefits<br />Liz Weiss, CN* Medical Correspondent<br />The natural plant pigments that give berries, watermelon and cherries their ruby red color are also powerful anti-oxidants that help to keep us healthy when we eat them.<br />Unidentified Female<br />You should try to get two servings of red fruit a day.<br />Weiss<br />And here’s why. It turns out that cherries contain anthocyanins, and research shows these compounds may ward off inflammation.<br />Unidentified Female<br />For a person with inflammation from osteoarthritis, if they eat 35 cherries a day, that is going to give them the pain relief that they would get from getting a dose of aspirin.<br />Weiss<br />Cranberries protect against urinary tract infections, but may also lower cholesterol levels. And berries contain ellagic acid, which some studies show may fight cancer.<br />Even watermelon, once considered to be a lightweight in the produce aisle because it contains 92 percent water, is now highly respected for its possible role in protecting against certain cancers.<br />Watermelon and pink grapefruit are teeming with Lycopene, shown to reduce the risk of porstate cancer.<br />“Natural Health” magazine’s Cheryl Redmond gives Gazapacho a fun new twist with watermelon. She also uses frozen berries, which, by the way, do retain their anti-oxidant powers in a frozen fruit smoothy. So if you thought red fruit had little more than water to offer?<br />Unidentified Female<br />I don't know if I connect the reds with being healthy.<br />Weiss<br />But greens you do?<br />Unidentified Female<br />I do.<br />Weiss<br />Then remember, the deeper the color, whether green, yellow, orange, or red, the healthier it is.</p><p>Exercises Reduce Stress<br />Liz Weiss, CN* Correspondent: Exercise offers all of the obvious benefits, bigger muscles and a healthier heart. But it also calms our nerves.<br />Unidentified Male: It's a great way of getting your tensions out and really getting a good night’s sleep.<br />Rob Smith, PH.D, Psychologist: And when you exercise, your body is releasing endorphins. And that’s something that’s like a natural morphine like substance that pumps through your body, and that helps to relax you.<br />Weiss: All forms of exercise help people to lighten up, but Smith says aerobic exercise may be the most effective.<br />Smith: That would include things like jogging, using the treadmill, biking.<br />Unidentified Female: For me I am a runner, so that’s the best thing for me to reduce stress.<br />Weiss: You don’t have to break a major sweat to chill out with exercise. Experts say just 30 minutes of brisk physical activity most or all days of the week can offer a powerful benefit.<br />Unidentified Female: Upward as you inhale, and downward as your exhale. <br />Weiss: For a change of pace from the workout room, Healthpoint in Waltham, Massachusetts offers no sweat, big gain, a relaxation class where participants can detox from the day.<br />Unidentified Female: Besides, you know, pumping iron, it’s nice to relax. <br />Unidentified Female: Since I am a type A person, it’s very difficult for me to relax. I am intense, and I have to really work at it.<br />Unidentified Female: Deep breath up.<br />Weiss: Relaxation and regular fitness are simple tools for getting a grip on stress.<br />Unidentified Male: It’s just an opportunity to leave it all behind, put your cell phone in your gym locker and focus on yourself.</p><p>Healthy Holiday<br />Gupta: Turkey, stuffing, string beans, sweet potatoes and pie are all part of the great American Thanksgiving tradition. Unfortunately, most of these delicacies are hardly low fat or heart healthy, but it doesn't have to be that way. Here are some ideas for cutting back on calories without cutting back on taste.<br />Settlers learned of corn from their Indian neighbors. After the first Thanksgiving in 1621, Edward Winslow wrote: “ Our corn did prove well, and God be praised. We had a good increase of Indian corn.” Since then, corn has become a Thanksgiving staple. <br />Unidentified Female: The more colorful your corn, the better it is going to be for hyou. So try to turn corn that is really bright yellow, if you can find it.<br />Gupta: So the more colorful the corn, the healthier. Works for yet another staple, probably not present at the first Thanksgiving dinner: the sweet potato.<br />Unidentified Female: Sweet potatoes are really rich in beta carotene, and bet carotene is a carotenoid that has been linked to help fighting cancer. It might help prevent heart disease. There’s a lot of benefits of having more carotenoids in the diet. But try to use the skin. As in all fruits and vegetables, the more you can use the skin, the more you’re going to get the nutrient benefit.<br />Gupta: Thanksgiving was made official by proclamation in 1863. Abraham Lincoln stated: “The year that is drawing towards its close has been filled with the blessings of fruitful fields and healthful skies.” The fruit perhaps most linked to Thanksgiving is the cranberry. <br />Unidentified Female: Cranberries have been shown in several studies to be the highest in antioxidant activity. And we know that antioxidants help prevent heart disease, cancer and all kinds of diseases associated with aging.<br />Gupta: Cranberry sauce, one of my favorites. How does this compare to that?<br />Unidentified Female: You get the same nutrients and same fido-chemical benefits in the sauce as you do---it’s actually released probably more in processing, some of these beneficial fido-nutrients.<br />Gupta: And what about the turkey? The tradition dates back to the first Thanksgiving. Historian William Bradford remembered his feast this way: “And besides waterfowl, there was a great store of wild turkeys, of which they took many.” So on to the main course. I love turkey. But there are certain parts of it that are better parts, right?<br />Unidentified Female: Definitely. The breast is the leanest part of the turkey, and the skin is really where all the fat is. so no matter what part you’re going to eat, take the skin off, because I know a lot of people like it, but unfortunately is where all the fat is, and it’s harmful, saturated fat as well.</p><p>Job Stress<br />Gupta: Stress is another factor that can lead to illness. It’s not that stress causes cold or causes a flu per se, but it can lower your body’s resistance by depressing the immune system. For many, a major source of daily stress is their jobs, and stress levels can be particularly high in a big city emergency room, like this one. And unfortunately catching a cold is the least of a stressed-out worker’s worries.<br />Gupta: Some industries are notoriously anxiety ridden, such as stock brokering in today’s market, being a surgical resident in a high volume hospital and, of course, TV news. While some people thrive in a pressure cooker, many will either crash and burn or have a heart attack.<br />Dr. Charles Raison, Emory Mind-body Program: There is a lot of evidence to suggest that people who have a lot of stress in their job are more likely to develop cardiac problems. <br />Gupta: In fact, a recent study of workers in Finland illustrates Dr. Raisons point. They followed more than 800 workers since 1973 and found that workers under high pressure with little control over their jobs and poor rewards for their efforts were twice as likely to die from cardiovascular disease. <br />Raison: There’s good evidence that it’s a big contributor, job stress, to musculoskeletal problems, carpal tunnel, the feelings of a lot of problems in your upper body, headaches, a lot of non-specific medical symptoms. There’s good evidence that people are under job stress are more likely to develop hypertension. And then there’re a lot of interesting findings showing that the immune system is also affected by job stress.<br />Gupta: The physical harm caused by job stress, especially heart disease, is so well acknowledged that in New York and several other states it is considered a work related injury. The emotional harm can also be severe.<br />Raison: Major depression is about 10 times more common now than it was, say, 50 years ago, and rates of self-reported happiness in the United States have also, have dropped. And it's interesting that this correlates with a time period in our history where there’s been a huge increase in the number of hours worked per week by the average American, such as that now, in the last five or 10 years, we have surpassed even Japan and are now the world’s leader in terms of number of hours worked per week.<br />Gupta: Government researchers list three situations that cause the most job stress---unrealistic deadlines, low levels of support from supervisors, lack of worker involvement in decision-making. They claim the best work environments benefit both employees and the company’s bottom line.</p>

amyguan

还有一篇太极拳的~丢了

白鹤

<p>啊? 你们也是 什么 陈式太极拳?</p>

白鹤

<p>还有ATM?? 啊? 。。。。</p>