Robot Surgeon (外科医生) Succeeds without Help from Human Doctors

         Humans make mistakes. Even surgeons with years of experience are not infallible. But what if these doctors could pool their knowledge and experience together and create a surgical standard of care, to be carried out by machines?

    That's the idea behind surgical robots, which may soon perform most surgeries, from sewing up tiny wounds to performing heart procedures. Many of these operations are, in fact, already completed with the assistance of robots. But a recent test suggests that robots in the operating room may soon go a step further, performing on soft tissue completely on their own, from start to finish.

    The Smart Tissue Autonomous Robot (STAR), successfully completed surgeries on pigs. “We're the first group to develop autonomous robotic surgery with soft-tissue surgery, and when compared to standard operation, it's better, ”says Peter Kim, professor of surgery. “The idea is not to replace surgeons; it will make the surgeons better and make the procedures safer.”

    A recent Mayo Clinic study found that major surgical errors-including operating on the wrong site or side of the body, or even leaving tools or objects inside the patient-occur every one out of 22, 000procedures. That's rare, but robots like STAR would aim to lower the number even further.

    In the da Vinci surgical system, surgeons place their arms inside instruments and use their hands to control the movement of robotic tools on the operating table from afar. The robot's every major move is controlled by surgeons, and thus its results may vary based on the surgeon's training or experience.

    STAR, on the other hand, is entirely autonomous. It's not only able to work on its own and perform surgeries with a more flexible “hand”, but it's able to react to the unexpected incidents. Cutting into hard tissue like bones is one thing, but operating on moving soft tissue is far more complex. STAR reacts to a changing environment, similar to how self-driving cars are programmed to not only drive on the highway, but also react to another driver making a mistake and getting in your way.

    Imagine you went to a restaurant with a date, had a burger, paid with a credit card, and left. The next time you go there, the waiter or waitress, armed with your profile data, greets you with, "Hey Joe, how are you? Mary is over there in the seat you sat in last time. Would you like to join her for dinner again?" Then you find out that your burger has been cooked and your drink is on the table. Forget the fact that you are with another date and are on a diet that doesn't include burgers. Sound a little odd? To some, it is the same with the Internet. The Nets ability to profile you through your visits to and interactions at websites provides marketers with an enormous amount of data on you--some of which you may not want them to have.

    Are you aware that almost every time you access a website you get a "cookie"? Unfortunately, it's not the Mrs.

    Reid's type. A cookie on the Internet is a computer code sent by the site to your computer--usually without your knowledge. During the entire period of time that you are at the site, the cookie is collecting information about your interaction, including where you visit, how long you stay there. How frequently you return to certain pages, and even your electronic address. Fill out a survey to collect free information or samples, and marketers know even more about you--like your name, address, and any other information you provide. While this may sound scary enough, cookies aren't even the latest in technology. A new system called I-librarian Alexa--named for the legendary third century.

    B. C. library in Alexandria, Egypt--does even more. While cookies track what you are doing at one site, Alexa collects data on all your Web activity, such as which sites you visit next, how long you stay there, whether you click on ads, etc. All this information is available to marketers, who use it to market more effectively to you. Not only do you not get paid for providing the information, you probably don't even know that you are giving it.

    "It can't be done." Boyan Slat heard this over and over when he first proposed a way to clean up millions of tons of plastic polluting our oceans. Almost anyone else would have given up in frustration and despair. But 20-year-old Slat hasn't: been discouraged but committed to his dream. "Human history is basically a list of things that couldn't be done, and then were done," he says. Today, slat and his team at The Ocean Cleanup are well on their way to proving the critics wrong. Good news for the planet.

    ⑴_______.

    Slat, who grew up in the city of Delft in the Netherlands, was on a diving trip in Greece three years ago when he was deeply impressed by plastic, "There were more plastic bags than fish," he says. "That moment I realized it was a huge issue and that environmental issues are really the biggest problems my generation will face."

That fall, Slat, then 17, decided to study plastic pollution as part of a high school project. Soon, Slat learned that no one had yet come up with practical way to clean up this massive garbage patches. Most proposed solutions involved "fishing" up the plastic using ships equipped with nets﹣which, as Slat discovered, would likely take more than 1,000 years, cost too much, let off too much sea life along with the trash.

    Slat proposed an alternative that mostly avoided these problems﹣a solar﹣powered system using a floating plastic tube which will go around the garbage and trap it is 600 meters long, A big screen hangs down from it, about three metres into the water. Wind, waves and ocean currents will push the trash toward the tube. （Fish can swim under the screen） A ship will pick up the trash and take it back to the shore to sort and recycle it into oil and other products. Best of all, Slat predicted his system could clean up the North Pacific Garbage Patch between California and Hawaii where a lot of floating garbage exists, within five to 10 years.

    ⑵________.

    The following, Slat entered the aerospace engineering program at the Delft University of Technology and officially announced his ocean cleanup concept at TEDx Delft. But nothing much moved forward,

    Slat found himself continually absent﹣minded in classes, looking for ways to improve his concept. "It wouldn't let go. I finally decided to put both university and my social life on hold to focus all my time on developing this idea. I wasn't sure if it would succeed, but considering the scale of problem I thought it was important to at least try." He says.

    With this family's blessing, Slat began in earnest organizing a team of volunteers and employees for The Ocean Cleanup, which now numbers about 100.

    ⑶_______.

    In answer to opposition, Slat and his team raised ＄100,000 from a crowd funding campaign and began testing a 40﹣meter collecting barrier near the Azores Islands last March. In June, they released a 500+ page possibility study.

Over the next three to four years, Slat will push toward a fully operational large﹣scale project by testing a series of longer and longer barriers. He's currently seeking to crowd fund ＄2 million to finance it. Incidentally, The Ocean Cleanup is also working on a plan to stop plastic from washing into the oceans in the first place. "It's just the other problem that is equally important." Slat says. "It's something everyone is able to help with, and we also have some technologies in the pipeline."

    As for school, Slat doesn't miss it﹣except maybe for the social﹣part, which he hopes to （恢复） a bit once his team takes on more of the workload. "I don't have time for things like that right now, but I really can't complain. I can imagine doing something more fun than being able to have an idea and then actually making it into a reality." he says.

    Breakdancing is set to make its debut(首次亮相) as an Olympic sport at Paris2024, Tony Estanguet, head of the Paris organizing committee, said on February 21". Skateboarding, sport climbing and surfing which have already been added to the 2020 Tokyo Olympics, have been invited to return in Paris.

    Estanguet said the choices responded to a need to make the Olympics "more urban" and “more artistic". "We have chosen to present the International Olympic Committee (IOC) with the four sports because they are creative, appealing to youth and completely in line with our vision. They reflect perfectly Paris 2024's identity.”

    Breakdancing is an example of a sport "which can be played anywhere and anytime in urban and other environments." It appeared at the 2018 Youth Olympics in Buenos Aires in the form of head-to-head "battles". In competitive breakdancing, "breakers face off in "battles" against each other, either as individuals or teams. Breakdancers use- a mix of physical and artistic skills combining elements from gymnastics or acrobatics(杂技).

    The IOC had announced that the number of competitors at Paris 2024 would be restricted to 10,500, which limited the opportunity to add sports. But the organizers said the inclusion would not necessitate the construction of permanent facilities and would involve just 248 competitors, including 32 breakdancers. The surfing events are likely to be held in established surf center such as Biarritz or Lacanau in southwest France.

    The inclusion still needs to be rubberstamped by the IOC, which is expected to decide on which sports to add in Paris after next year's Tokyo Games.

    At 23 I applied for full-time positions with no intention of working five days a week. As a housewife, I had two pre-school children then but wanted to work three days a week.

    This was a huge deal for me. I needed to work, but also wanted to spend time with my children while they were young. I didn't want to miss out on school drop-offs and pick-ups. But I also didn't want to miss out on the opportunity of promotion.

    Before the interviews, I prepared a plan of how I was going to make this work for me and the employer. I saw it as a two-way agreement — the business adapting to me and me adapting to the business.

    Finally I became a member of EY at 33. EY was the only firm that seemed receptive to my plan; in fact, we spent time during that first interview talking about how we could make it work together. Most importantly, the person interviewing me worked flexibly too — four days a week.

    I appreciated that I'm one of the lucky ones. Even 10 years on, flexible hiring and working remains the exception rather than the rule for most.

    What will help shift views and behavior, in addition to organizations updating their hiring policies, is talking more openly about how most of us organize our day around our responsibilities. We all have a life outside of work and we shouldn't be embarrassed to talk about it, even during a job interview.

    It's a change in the way of thinking, not just for employers but employees too. In the early days I was confident about my ability but I probably did have a preconception (先入之见) that working part-time would limit my career progression. What I quickly realized was that if I took responsibility for my development, I could make sure that I got the same opportunities as if I was working full-time. So I offered solutions to how we could make it work, and it made me stand out.

St. Patrick's Day, Ireland's National Day, is celebrated on 17th March every year, marking the anniversary of the day on which he passed away. St. Patrick is the most famous saint of Ireland. Born in Roman Britain, he was enslaved in Ireland at the age of 16, but he successfully escaped. Later, he returned to Ireland and brought his religious beliefs to its people.

On St Patrick's Day, Iris h families would traditionally attend church in the morning and celebrate in the afternoon. People would dance, drink, and feast on traditional meals of Irish bacon and cabbage. The Irish have observed this day as a religious holiday for over 1,000 years.

Interestingly, however, the first parade held to celebrate St Patrick's Day took place not in Ireland but in the United States. On 17th March 1762, Irish soldiers serving in the English army marched through New York City. Along with their music, the parade helped the soldiers reconnect with their Irish roots, as well as with fellow Irishmen serving in the English army.

Over 100 St. Patrick's Day parades happen across the U. S., with New York City and Boston hosting the biggest. In 1848, New York Irish Aid societies joined to create the official New York City St. Patrick's Day Parade, the world's oldest civilian（平民的） parade and the largest in the U. S. It draws over 150,000 participants and nearly 3 million spectators（观众）, lasting over five hours. Boston, Chicago, Philadelphia, and Savannah also celebrate the day with major parades.

Today, people of all background s celebrate St Patrick's Day, especially throughout the United States, Canada and Australia. It is also celebrated in many other locations far from Ireland, including Japan, Singapore, and Russia.