As we know, DNA testing is very useful for crime fighting. But now crime fighters could have a new tool at hand. Researchers have developed a cutting-edge (前沿的) technique to identify human hair. Their test is quicker than DNA analysis techniques currently used by the police.

    DNA testing is commonly used for identification because DNA is unique to each individual. However, environmental and chemical processes can degrade(降解) DNA, limiting its usefulness over time. Protein (蛋白质) in hair, on the other hand, is more stable than DNA but can also have variations (变异体) that may be unique to the individual.

    “Our analysis process can be used universally, ”says Ms. Huang, “One of our samples even included dyed hair and the test was 100 per cent accurate. The test was able to distinguish East Asians, Caucasians and South Asians.”

    Dr. Beauchemin says she has got in touch with law enforcement agencies about using the new technology. She is also planning to collect more hair samples and continue her research with a goal of finding where exactly in the world hair sample is from, to look for more races and determine specific age.

    “We are in a very similar place with protein-based identification to where DNA testing was during the early days of development,” said chemist Brad Hart. “This method will be a game-changer, and while we've made a lot of progress toward improving it, there are steps to go before this new technique is able to reach its full potential.”

    Imagine one day, the water taps in your house stop running. You have to buy water from shops. And still there isn't enough for everyone. Your mother has to save the family's shower water to do other things. Would you be able to stand that kind of life?

    Probably not. But that's what kids in Yemen are experiencing. Experts said Yemen is going to be the first country in the world to run out of water. According to a report, the capital, Sanaa, will run out of drinking water as early as 2025.

    Because of the shortage, the government often cuts the water supply. Hannan, 18-year-old from Lahej, told the Times: “In a good week, we'll have a water supply all week. But then the following week there will be water only for a day or two.”

    Hannan said only rich people have enough water to use. They can buy water from the shops or from the water truck. Private companies own the trucks. They travel around the city every day to sell water-at very high prices.

    “A lot of people can't afford it,” she said. The average person in Yemen uses 100 to 200 cubic meters of water per year. That is far below the international water poverty line of 1,000 cubic meters.

    The government is thinking of making use of seawater. But it will cost a lot and it may not happen soon enough to help the people of Yemen.

    Games have already become a good companion for people. Whether kids or adults, they prefer to spend their spare time in playing games. Why are games so popular? Firstly, they can attract people easily and secondly, they are east to upgrade(升级). Each day, thousands of games come out. And no matter which kind of game you like, there is always a game that suits you. Now when people meet, they would like to talk about the newest games.

    Here are the hottest new games for girls. They are Didi games. 80 percent of girls like dressing-up games. There are varieties of dressing-up games in Didi. The leading roles of them also vary from common girls to princesses. If you are lucky enough, you can be dressed up as the famous stars you admire. At the same time, wedding dressing-up games can also be found. Whether you admit it or not, all girls like things related to wedding, so most girls like to be dressed up as brides.

    In order to attract kids' attention, many games choose fairies(精灵) as the leading roles, for fairies are really alluring to girls. Maybe the magic wands(魔杖) of the fairies really have supernatural powers(超自然力量). There are various kinds of Didi fairy games, such as Fairy of Water, Catching Flowers Contest, Winter Garden Fairy, etc.

    Cooking games are also girls' favorite games. Making a cake, soup or other delicious food is a category of simple games. There are also complicated ones, for example, preparing a dinner. It is more challenging but most girls like challenges. Another category of games which attracts people must be the games related to farms. Why are they so popular? Because the games can let people enjoy the fun as farmers. There are also farm animals that kids like very much. Here you can build your own farms. Also you can experience the life of farmers.

    A lot of kids have dreams they will never achieve due to the limitations of their little bodies. They want to fly, or to become a dinosaur, or to learn how to shoot webs out of their fingers like Spiderman.

    Luka Tavcar, 12, has muscular dystrophy(萎缩) and is totally dependent on his wheelchair. Nevertheless, late last year, he had an inspired plan: to be photographed walking around and having fun.

    He approached Matej Peljhan, an amateur photographer and a psychologist at CIRIUS rehabilitation(康复) center near Ljubljana, Slovenia, where Luka is a patient.

    At first, Peljhan was perplexed. How could he photograph a boy who can not move or act in motion? "Luka wanted to see himself playing and having fun, but it seemed impossible," he says.

    Then Peljhan had a brainstorm: Luka could lie down on a piece of cloth and, with the help of an assistant, Peljhan would pose the boy as if he were jumping, climbing stairs, moving downhill on a skateboard, and playing basketball. Then Peljhan would shoot these images from above. The photos took about a month to produce; all were shot early this year.

    Peljhan, who lost his right arm and left eye as a child, says his disabilities motivated him to make the photographs. "I understand people with limitations," he says.

    He named the series the little Prince after the French story by Antoine de Saint-Exupery in which a boy teaches a man about trust, hope and friendship. Luka loves the photos.

    Peljhan himself understands what it is like to live with limitations- he lost his right arm and left eye as a child. "He wants to stay positive," the photographer explains. "Luka's imagination helps him forget his phisical limitation", says Peljhan. "He's fragile, but he can see the world differently."

WHO'S WHO IN THE ZOO?

    Is it amazing that the WHO'S WHO IN THE ZOO makes it fun for young children to save? With the help of Standard Bank's Kidz APP and the Big Five animal friends, teaching your children about managing their cash has never been more fun. Let the WHO'S WHO IN THE ZOO show your little ones what it means to earn and save money as well as share in the enjoyment of spending their well－earned cash.

Elephant

    As your children use the mobile app to complete various actions—achieving savings goals, completing missions and achieving wishes—here various medals will be rewarded.

    Earned medals are displayed in the elephant habitat as well as locked medals still to be achieved.

Leopard

    Reward your kids with pocket money for completing 'missions': household chores, achievements, etc.

    You can create a mission for your child, or your child can request a new mission. Once created, it must be accepted. The mission needs to be completed by your child and approved by you before you can pay him or her.

Lion

    Help your children create and fulfil wishes. Wish cards and their savings progress can be tracked from your banking app.

    Once their savings goal is reached, lion will inform you of their achievement.

Buffalo

    Kids can request to withdraw cash or purchase airtime and data using their savings.

Rhino

    Rhino shows your child's latest account balance and transactions.

    Download the Standard Bank's Kidz APP from Apple App Store on the phone. Use the comment section to interact with other Standard Bank customers and bank consultants.

    The love story between John F. Kennedy and his wife, Jackie, was far from perfect and was tragically cut short in 1963 by a sniper's(狙击手) bullet.

    On November 22, 1963, President John F. Kennedy was seated beside his smartly dressed wife, who was wearing a pink Chanel-like suit and matching pillbox hat and holding an armful of red roses that had been presented to her by fans. They were seated in the back seat of a dark blue 1961 Lincoln with John Connally, the Governor of Texas and his wife, Nellie.

    And then came the dark moment. As the motorcade(车队) passed the Texas School Book Depository on Elm Street, a loud noise—like the sound of a firecracker—cracked the air. President Kennedy slumped(耷拉) forward, Jackie putting her arms around him.

    The look on her husband's face after he was shot would haunt Jackie for the rest of her life. The last words she ever got to say to him were, "I love you, Jack. I love you," according to Anderson, although Jackie herself recalled it slightly differently in a 1963 interview. All the way to Parkland Hospital, where President Kennedy would eventually be pronounced dead, as she recalled it, she was bent over him, asking "Jack, Jack, can you hear me? I love you."

    Jack Kennedy's final words to his wife of 10 years were far more mundane, of course. He had no way of knowing what was about to happen. It's been reported that Jack's final words were, "My God, I've been hit," but physicians have said this was impossible given Jack's injuries. Well, historians have now clarified that the last words Jack spoke before the fatal shot were, "No, you certainly can't."

    No, you certainly can't?

    He was making small talk in the car. "You certainly can't say that the people of Dallas haven't given you a nice welcome," the Texas Governor's wife had just remarked to Jack, referring to the huge, adoring crowd. "No, you certainly can't," Jack replied, milliseconds before the bullet from Lee Harvey Oswald gun struck.

    John F. Kennedy never spoke another word after that fateful day, but many things he said during his lifetime are incredibly inspiring.