I am peter Hodes ,a volunteer stem courier. Since March 2012, I've done 89 trips of those , 51 have been abroad, I have 42 hours to carry stem cells（干细胞）in my little box because I've got two ice packs and that's how long they last, in all, from the time the stem cells are harvested from a donor(捐献者) to the time they can be implanted in the patient, we've got 72 hours at most, So I am always conscious of time.

I had one trip last year where I was caught by a hurricane in America. I picked up the stem cells in Providence, Rhode Island, and was meant to fly to Washington then back to London. But when I arrived at the check-in desk at Providence, the lady on the desk said: “Well, I'm really sorry, I've got some bad news for you-there are no fights from Washington.” So I took my box and put it on the desk and I said: “In this box are some stem cells that are urgently needed for a patient-please, please, you've got to get me back to the United Kingdom.” She just dropped everything. She arranged for a flight on a small plane to be held for mere-routed(改道)me through Newark and got me back to the UK even earlier than originally scheduled.

For thiscourier job, you're consciously aware than that box you're got something that is potentially going to save somebody's life.

    As Internet users become more dependent on the Internet to store information, are people remember less? If you know your computer will save information, why store it in your own personal memory, your brain? Experts are wondering if the Internet is changing what we remember and how.

    In a recent study, Professor Betsy Sparrow conducted some experiments. She and her research team wanted to know the Internet is changing memory. In the first experiment, they gave people 40 unimportant facts to type into a computer. The first group of people understood that the computer would save the information. The second group understood that the computer would not save it. Later, the second group remembered the information better. People in the first group knew they could find the information again, so they did not try to remember it.

    In another experiment, the researchers gave people facts to remember, and told them where to find the information an the Internet. The information was in a specific computer folder (文件夹). Surprisingly, people later remember the folder location (位置) better than the facts. When people use the Internet, they do not remember the information. Rather, they remember how to find it. This is called “transactive memory (交互记忆)”

    According to Sparrow, we are not becoming people with poor memories as a result of the Internet. Instead, computer users are developing stronger transactive memories; that is, people are learning how to organize huge quantities of information so that they are able to access it at a later date. This doesn't mean we are becoming either more or less intelligent, but there is no doubt that the way we use memory is changing.

    Suddenly another thought went through Kate's mind like an electric shock. An express train was due to go past about thirty minutes later. If it were not stopped, that long train, full of passengers, would fall into the stream. “Someone must go to the station and warn the station-master,” Kate thought. But who was to go? She would have to go herself. There was no one else.

    In wind and rain she started on her difficult way. Soon she was at the bridge that crossed the Des Moines River, a bridge also built of wood, just like the bridge across Honey Creek. The storm had not washed this away, but there was no footpath across it. She would have to cross it by stepping from sleeper(枕木) to sleeper. With great care she began the dangerous crossing, sometimes on her hands and knees, hardly daring to look down between the sleepers into the wild flood waters below. If she should slip, she would fall between the sleepers, into the rapidly flowing stream.

    At last-she never knew how long it had taken her-she felt solid ground under her feet. But there was no time to rest. She still had to run more than half a mile and had only a few minutes left. Unless she reached the station before the express did, many, many lives would be lost.

    She did reach the station just as the train came into sight. Fortunately the station-master was standing outside. “The bridge is down! Stop the train! Oh, please stop it!” Kate shouted breathlessly.

    The station-master went pale. He rushed into the station building and came back with a signal light. He waved the red light as the train came into the station. It was not a second too early.

    Ms. O'grady, the head of Britains Trades Union Congress, issued a challenge on September 10th. "We can win a four-day working week, "she told members. The demand is far from new. Shorter working weeks have been tried in New Zealand and Sweden, wherein happier, healthier and more motivated employees. Those who work shorter weeks are also reported to be more productive. Should weekends, therefore, be lengthened?

    France's experience suggests workers may not leap at the chance of working for fewer hours. The government reduced the full-time workers week to 35 hours in 2000. Last year the French worked 38.9 hours a week on average, seeming happy to labor above the required level and pocket the extra pay or holiday allowance.

    And businesses may not seize the opportunity either. Working less may be linked to higher productivity (on a per-hour basis), but overall output could still fall because of the smaller number of hours worked. That will not get governments or employers excited.

    Advocates of a four-day week could claim that improving people's quality of life is more important than boosting the economy. In an essay published during The Great Depression, John Maynard Keynes wrote of an "age of leisure and abundance" in which technological advances would allow people to work 15-hour week.

    Unfortunately for any readers working hard on a Friday afternoon, Keynes jumped at his conclusion too soon. Even Ms. O'grady, now demanding a longer weekend, is pessimistic in her timescale. A four-day week is apparently achievable “in this century”.

    Surgery that can improve the way a person looks is being more and more popular in the United Stated. This kind of surgery is called cosmetic surgery, and both men and women are turning to this treatment as a way of keeping their appearance young as well as keeping competitive in their jobs. Men especially are beginning to turn to face-lifts, liposuction, and implants to help them look younger. As companies downsize and move younger employees into higher positions, older employees in their late forties and early fifties feel the need to look and act younger in order to stay competitive. A younger look through cosmetic surgery may give an older employee a few more years on the job.

    These operations are not without dangers, however. One young woman had an eye operation to get rid of the bags under her eyes. She described her experience as terrible. She said, "When he started cutting, I was fully awake. Even though he'd given me an injection(注射) near my eyes, I saw everything. "She went on to explain, "I knew I had to keep still because of what he was doing. He was removing fat under my eyes. It took about ten minutes. After he finished I felt I couldn't walk. I was so weak." Her troubles did not end after the operation. For two weeks, her eyes were swollen and almost completely closed, and even dark glasses could not hide the side effects of the operation.

    Liposuction is probably the most popular cosmetic operation in the United States. It seems simple enough. First, a small cut is made over the places where the patient wants the fat removed. Next, a small pipe is put into the cut. A machine is then turned on, and the fat is taken right out of the body. However, as one doctor explained, some problems can happen after the operation. He warned, "Irregular lumps(块) and loose skin can result from this operation. If it is not completely done, liposuction can produce a very lumpy result." Patients often must have more liposuctions to correct the problem.

    Recently, a 1935 letter in which Ernest Hemingway detailed his catch of a 500lb blue marlin(青枪鱼), an adventure that is believed to have partly inspired his novel The Old Man and the Sea, has been sold for﹩28, 000 (£22, 000).

    The handwritten letter was sent by Hemingway on 8 May to the fishing editor of the Miami Herald, laying out in great detail how the author and his friend Henry Strater battled to keep sharks away from the marlin after catching it off the Bahamian island of Bimini.

    Nate D Sanders, the auction(拍卖) company which sold the letter, said it documented for the first time in Hemingway's own words not only the size of the marlin, but also the attack by sharks, reflecting the plot of the novel.

    The company added that Hemingway's account of the marlin catch differed from other anecdotes of it, one of which described Hemingway using a machine gun on the sharks, which is said to have attracted more sharks rather than frightened them away.

    The Old Man and the Sea was also inspired by an anecdote told by Hemingway's Cuban friend Carlos Gutierrez. In 1936, Hemingway wrote in a magazine that Carlos had told him about an old fisherman who caught a great marlin alone.

    Three years later, Hemingway told his editor Max Perkins that he was planning a short story about the old commercial fisherman who fought the swordfish all alone in his sailing boat. Instead, he ended up writing For Whom the Bell Tolls, not returning to the story about the old fisherman until January 1951. It won him the Pulitzer in 1953, and was specifically cited when he was awarded the Nobel Prize in 1954.