Here's an idea whose time has come: A flu shot that doesn't require an actual shot.

    For the first time, researchers have tested a flu vaccine patch(疫苗贴) in a human clinical trial and found that it delivered as much protection as a traditional injection(注射) with a needle. Doctors and public health experts have high hopes that it will increase the number of people who get immunized(免疫的) against the flu.

    Seasonal flu is responsible for up to half a million deaths around the world each year according to the World Health Organization. A team led by Georgia Tech engineer Mark Prausnitz has come up with an alternative method that uses "microneedles". These tiny needles are so small that 100 of them, arranged in order on a patch, can fit under your finger. Yet they're big enough to hold vaccine for three types of flu.

    None of the study volunteers had serious side effects. The groups that got patches had mild skin reactions that were not seen in the regular needle group, while the volunteers in the regular needle group were more likely to experience pain. Overall, 70 percent of the volunteers who got vaccine patches said they'd rather use them again than get a traditional flu shot. The study authors declared it a success on all fronts.

    The biggest beneficiaries could be people in low and middle-income countries, where flu vaccines are hard to come by. Reducing pain is nice, but other benefits—the patch costs less, is easier to transport, doesn't require refrigeration, can be self-administered and doesn't cause waste of needles—are even better.

    "Microneedle Patches have the potential to become ideal candidates for vaccination programs," wrote Katja Hoschler and Maria Zambon of Public Health England.

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    So what is rewilding?

    Imagine our natural homes growing instead of shrinking. Imagine species (物种) diversifying instead of declining. That's rewilding. Rewilding is ecological restoration. Rewilding offers hope for wildlife, humans and the planet.

    Why is rewilding important and necessary?

    Our natural ecology is broken. The places where you would expect wildlife to exist have been reduced to wet deserts. The seabed has been destroyed and there have been no living creatures any more.

    Our wildlife is disappearing. Many wonderful species have declined over the past century. We've lost more of our large animals than any European country.

    We need keystone species. These vital species, including top predators (食肉动物), drive ecological processes. Their loss has worsened our living systems.

    Nature looks after us. Good natural ecology can provide us with clean air and water, prevent flooding and store carbon. Rewilding can leave the world in a better state than it is today.

    What are challenges?

    As a long-term project, our "rewilding britain" has its challenges. Many people are not interested, because we have got used to the lack of native forests. Many farmers oppose the idea. They thought it a crazy idea to bring back predators because they would start killing farm animals. It takes time to educate them. Above all, we need money! So we need your help!

    Make a donation.

    Help us bring back living systems and restore wild nature!

With your help we can…

    Open up new chances for rewilding and push for change.

    Develop tools to educate, influence and spread the word.

    Thanks for your support.

    Michelle Kwan was born on July 7, 1980, in Torrance, California. The daughter of Hong Kong immigrants (移民), Kwan watched her older brother play ice hockey as a kid. She began skating when she was five, and entered and won her first figure skating competition at seven. She won the world title in the 1994 World Championships at the age of 13, and earned a spot as an alternate (候补者) for the 1994 Olympic Games. Kwan went on to capture the world title in 1996, 1998, 2000, 2001 and 2003.

    At the Nagano Winter Olympics in 1998, Kwan was believed to win gold, but ended up with a disappointing silver medal when fellow US skater Tara Lipinski surprisingly took first place. Shortly before the Salt Lake City Winter Olympics in 2002, Kwan, who was then the reigning world champ, surprisingly fired both her choreographer (编舞者), Lori Nichol, and longtime coach, Frank Carroll. Once again, she failed to get the gold medal when she finished third behind Irina Slutskaya of Russia and US skater Sarah Hughes, who took first.

    As a student at the University of California at Los Angeles, Kwan has continued to compete since her defeat (战败) in Salt Lake City. In February 2006, she was unable to take part in the Olympic Games in Torino, Italy because of a serious injury. Though Michelle Kwan did not compete during the 2006－2007 figure skating season, she has turned down an offer to work for NBC Sports and says she is not retiring.

    Shark attacks not only disturb beach activities, but can affect associated tourist industries. Shark nets are a common solution to preventing shark attacks on beaches, but they cause dangers to sea ecosystems.

    Seeking a cost-effective way to monitor beach safety over large areas, we have developed a system called Shark Spotter. It combines artificial intelligence (AI), computing power, and drone (无人机) technology to identify and warn lifesavers to sharks near swimmers. The project is a cooperation between the University of Technology Sydney and The Ripper Group, which is pioneering the use of drones—called "Westpac Little Ripper Lifesavers"—in the search and rescue movement in Australia.

    SharkSpotter can detect sharks and other potential threats using real-time aerial imagery. The system analyses video from a camera attached to a drone to monitor beaches for sharks, send warnings, and conduct rescues. Developed with techniques known as "deep learning", the Shark Spotter system receives imagery from the drone camera and attempts to identify all objects in the scene. Once certain objects are detected, they are put into one of 16 categories: shark, whale, dolphin, rays, different types of boats, surfers, and swimmers.

    If a shark is detected, Shark Spotter provides both a visual sign on the computer screen and an audible warning to the operator. The operator confirms the warning and sends text messages from the Shark Spotter system to the Surf Life Savers for further action. In an emergency, the drone is equipped with a lifesaving flotation pod (漂浮仓) together with an electronic shark repellent (驱逐装置) that can be dropped into the water in cases where swimmers are in severe trouble, trapped in a rip, or if there are sharks close by.

    In January 2018, the Westpac Little Ripper Lifesavers was used to rescue two young swimmers caught in a rip at Lennox Head, NSW. The drone flew down the beach some 800 meters from the lifeguard station, and a lifesaving flotation pod was dropped from the drone. The complete rescue operation took 70 seconds.

    We believe Shark Spotter is a win-win for both marine life and beachgoers. This unique technology combines dynamic video image processing AI and advanced drone technology to creatively deal with the global challenge of ensuring safe beaches, protecting environments, and promoting tourism.

When I was a child my father taught me five words that I've used all my life — in my acting career, as a mother, in my business activities. If I 1 that I was afraid of the dark, or if I seemed worried about meeting new people, Dad would say, "Stand porter to your 2 . "

A porter is a gatekeeper who stands at a door letting people in or out. Dad would get me to picture myself stopping 3 things — such as fear — at the door, 4 saying "Come in" to faith, love and self-assurance.

As an actress, before I went on camera, I'd make sure anxiety stayed out and confidence in my ability came in. As a mother, when I was anxious about my children, I would try not to let worry in but would 5 my mind with trust in them.

Of course, there were always times I'd 6 those words.

In 1972 my husband, Fillmore Crank, and I opened the doors to our own 7 in North Hollywood. This was a new business venture for us, and it was a lot more 8 and complicated than we had 9 .

We were on call 24 hours a day. Something was always going 10 . Electricity went on the blink (失灵), food wasn't enough, employees called in sick. Once, a flu epidemic suddenly left us with no maids. Fillmore gave me a choice: scrub (擦洗) floors or do the laundry. For 10 days I folded enough sheets to 11 the whole state of California.

Then there was the 12 crisis. The price of gasoline doubled, and tourism in California 13 . How could we fill our beds? What if we kept losing money? What if we failed? Fear and worry were sneaking in. But I caught them just 14 I stood porter.

I stood in the door of my mind and sent fear packing.

These days at the hotel, whenever fear tries to 15 , I just smile and point to the sign that reads "No Vacancy".

Several years ago, my company experienced a slowdown in business. We hoped that it was only 1 . We had work enough for only four days of the week. So we decided that we would work from Monday to Thursday, and take Fridays to do 2 projects in our hometown. 

One day, we went to a very old gentleman's 3 to do a total clean-up. When we arrived, an elderly woman 4 us at the door. We thought she was the wife, but it turned out that she was the 5 . She was 75, and her father 97! Soon, we began to clean the house and the yard. It was 6 how much work a group could get done when everyone was working 7 . That gentleman's house went from dirt to a sparkling clean palace by the time we finished. 

The thing I most remember about that day, 8 , was not the great cleaning job that we did, but something 9 . When we walked into the house, I noticed the wonderful drawings that 10 the walls. The daughter told us that her father had 11 them, and that he hadn't

12 art until he was 80 years old. I was 13 : these drawings were works of art that could have easily been hanging in a museum. At the time, I was in my early 30s and wanted to do something that would use my creative and artistic competence more than being president of a company would 14 . I had felt that it was too difficult to make a change at this "advanced" stage of my life. Boy! My 15 belief system got expanded that afternoon!