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.”

    Have you ever seen a real night sky that looks like Van Gogh's Starry Night? I hope not! So, why would an artist paint the sky this way? Perhaps I can answer that with another question. When you're happy, why do you sing instead of speaking? Or when you're in love, why do you speak of roses and honey? When we do these things, we, too are artists. We're using something that goes beyond a mere scientific description in order to communicate our feelings more powerfully than straightforward words can. So consider for a moment that Van Gogh might not have been hallucinating on the night he painted this. Maybe he felt something so powerful that he had to go beyond the familiar to express it.

    I hope I'm reminding you of something you already know as I describe the experience of being outside at night under a crystal clear sky that makes everything seem clean and refreshing. So you look up. And suddenly you see the sky that you've seldom seen before. It's not just the same old dark night sky tonight. Instead, the blackness is a deep, rich blue that is more bottomless than any ocean. The stars are not spots of light but brilliant, magical diamonds that dance like tiny angels. In just this special moment, the sky is somehow alive, and it seems to speak to you silently about the meaning of infinity.

    Now look at the painting again. Can you see something of what makes this such a famous and well-loved image? But there's more here than that. Van Gogh painted this while he was quite struck down by a mental disease. It is natural to imagine that he frequently battled the fear that he would never escape his prison to true freedom. It is natural for us to imagine this because each of us has faced our own personal prison, whether it be disease, the loss of a loved one, serious financial problems … In such moments it is tempting to give up to despair and collapse in hopelessness.

    Looking at this painting, I imagine Van Gogh in just such a moment of despair, when he is struck by the memory of one of those amazing night skies. He recalls the sense that he is not alone, that there is a living, infinite world with rich colorful creatures and scenes all around.

    And so the sky flows across the canvas full of vitality and power. The stars don't just sparkle; they explode. Looking closer, we notice that the earth itself seems to respond to the movement in the sky, forming its own living waves in the mountain and rolling trees. In the sleepy village, the windows of the houses glow with the same light that brightens the universe. The giant trees at the left seem to capture the joy by stretching upwards toward the sky.

    What a tremendous message of hope there is in this masterpiece! Even if our troubles persist, the world around us assures us that life is worth living. That's what the angels sing about. Doesn't it make you want to sing, too?

    Dutch masters exhibition in Beijing

    The 17th century Dutch Golden Age had several significant artists and a range of great pieces produced during the period—including Jan Vermeer's Young Woman at Virginal,Jan Lievens' Boy in a Cape,and Turban and Rembrandt's Self-Portrait with Shaded Eyes.

    Some of the most refined examples of the time,including the three pieces mentioned above,will make their debut（首次亮相）in China as part of a world tour of The Leiden Collection.

    If you go:

    9 a.m.-5 p.m.,June 17-Sept 3 (closed on Mondays).National Museum of China,I Wusi Avenue,Dongcheng district.010-6400-1476.

    Ticket: 50 yuan ($7)

    The Age of Mechanical Reproduction

    The Age of Mechanical Reproduction,the latest exhibition at the Riverside Art Museum,features 41 artworks of US pop icon Andy Warhol,covering art installations,paintings and photographs.Warhol's well-known installation Electric Chair is a highlight of the show,which is also its debut in Asia.

    If you go:

    10 a.m.-5 p.m.,through August 28 (closed on Mondays).The Riverside Art Museum,Hongyan Road,Chaoyang district.010-5309-2062.

    Ticket: 60 yuan

    Back with a bang

    Beijing-based hand Escape Plan will hold a concert in Beijing this weekend.The band is most famous for the song The Brightest Star in the Night Sky.

    If you go:

    7:30 p.m.,June 17.Beijing Worker's Gymnasium,Gongti Beilu,Chaoyang district.400-610-3721.

    Ticket: 280-980 yuan

    Purple clay teapots

    Yixing purple clay potteries are a vital part of Chinese pottery culture and have been included in China's list of national intangible cultural heritage（国家非物质文化遗产）.A selection of more than 80 purple clay teapots will go on display at the Poly Art Museum starting Friday.The exhibit will include a range of delicate teapot works of Ji Yishun,Wang Xiaolong and Gao Lijun,who are all inheritors（继承人）the time-honored（历史悠久的）pottery handicraft.

    If you go:

    9:30 a.m.-4:30 p.m.(closed on Sundays),through June 30.Poly Art Museum,New Poly Plaza,1 Chaoyangmen North Street 9.010-6500-8117.

    Ticket: 20 yuan

    My husband David was waiting at the door when our daughter Laura and I pulled in the driveway. It wasn't like him to be home so early. The disbelief on his face told me that something was up.

    "Do you still have a job?"

    "No. Redundant," he answered, looking away from me.

    "OK. We'll figure it out," I replied calmly.

    I actually had no idea how we were going to figure it out. I immediately started to think of how we'd cut costs and who we should start to get in touch with. That night, after David had fallen asleep, I cried myself to sleep, and frequently sobbed in the shower in the days that followed.

    I knew the loss of David's income would have great effect on us. He had worked for the same insurance company for twenty-one years and was our main income. I work at home caring for Laura, and my freelance(自由职业者的)income is uncertain. We have debts, and job hunting takes time.

    Still, I was more concerned about my husband's emotional state than our financial situation. David's sense of identity was tied to his job. He called his parents to tell them about losing his job, but didn't say a word to anyone else for weeks. He told me that he felt like "a failure".

It was tough for me to watch David struggle with unemployment. One night a couple of weeks after he lost his job, David woke me just before midnight, sweating, pacing the bedroom floor and saying he felt funny. We spent the night in the emergency room waiting to see if he had a heart attack. Thankfully, it was just a serious anxiety attack. It was then that I knew I needed to do more to understand what my husband was going through. Here is what I learned from my own experience—and from talking to experts—on how to support your spouse through a job loss.

    Working or learning in a foreign country can be a difficult experience. The hardest part of working abroad isn't finding a place to stay or learning the language. It's learning to overcome the culture shock.

    These things are part of everyday life, and include many signs, gestures, facial expressions, and customs. When we enter a new culture, these cues (提示)are usually not present or so different that they're no longer understandable to us.

    "When a person enters a foreign culture," wrote Oberg, "all or most of these familiar cues are eliminated. He or she is like a fish out of water. No matter how broad-minded he or she may be, lots of props(支柱) have been knocked out from the environment."

    This is what happened to Lara, a young IT consultant (顾问) from America moved last year to their company in southern Europe. Three weeks after she arrived in Europe. Lara sent a desperate e-mail begging to return home. "The people are so unfriendly, "Lara wrote ,"They eat at strange hours and I'm starting to get allergic (过敏的)to the local food. I can't get anything done because their way of doing business is so disorganized and so inefficient and I have a terrible skin itch because of the water. I want to come home! "

    What Lara and other IT consultants meet on their first assignment abroad is a culture shock. While you can't prevent the culture shock from happening, you can take some measures to cut down its effects.

Learning how to apologize is similar to learning any new behavior. It may feel awkward and may not be polished at first {#blank#}1{#/blank#} There are several tips that will help you as you learn how to apologize.

First of all, wait until the right time and you are in the right place. Although public apology is often appropriate, discretion（谨慎）should be used. {#blank#}2{#/blank#} Remember, you will be raising a topic that may recall a bad experience or bad feelings. Be respectful as you approach this task.

Be direct and brief in your approach. Acknowledge the fact that injury has occurred and then take responsibility for what happened. Be sincere in expressing your regret and demonstrate your willingness to take ownership of the situation. {#blank#}3{#/blank#}.

Even if you follow these steps, be prepared for rejection. Sometimes, the person apologizing has an expectation that the apology will lead to immediate forgiveness and acceptance. {#blank#}4{#/blank#} If you think of the offense（冒犯）as an emotional bruise（瘀伤）, think of the healing process as the color changes we see as a bruise heals.

{#blank#}5{#/blank#} Knowing when to keep one's mouth shut is a virtue. Keeping quiet may be very difficult, as post-apology listening is not easy. We may hear unpleasant observations from another about our own shortcomings. We may hear the expression of anger. One of the ways we let others know we are truly responsible and accountable for our mistakes is by listening to the other party pour out the feelings associated with our actions.

A. Forgiveness and acceptance may take time.

B. To give or receive a good apology is an art.

C. But with practice, everyone can learn to do it.

D. Listening to the response to our apologies is important.

E. Most apologies can and should happen in a private setting.

F. In other words, avoid excuses and offer to repair the damage.

G. Taking responsibility doesn't mean accepting blame for everything.