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.”

The Square

    Jack Dorsey, the co-inventor of Twitter, is promoting his latest invention called the Square. The square is a small plug-in attachment to your mobile phone that allows you to receive credit card payments.

    The idea starting from Dorsey's friend Jim McKelvey who was unable to sell some glass work to a customer because he couldn't accept a particular card being used.

    Accepting credit card payments for something you're selling isn't always easy, especially if you are mobile like a tradesman, or delivery service at a trade show.

    This latest invention uses a small scanner that plugs into the audio input item on a mobile device. It reads information on a credit card when it is swiped(刷卡). The information is not stored on the device but sent over secure channels to banks. It basically makes any mobile phone a cash register for accepting card payments.

    As a payer, you receive a receipt via email that can be instantly accessed securely online. You can also use a text message to authorize payment in real time. Retailers can create a payer account for their customers which speeds the payment process. For example, a cardholder can assign a photo to their card so their photo will appear on the phone for visual identity confirmation. Mobile devices with touch screens will also allow you to sign for goods.

    There are no contracts, monthly fees, or hidden costs to accept card payments using Square and it is expected the plug-in attachment will also be free of charge.

    As with Twitter, it's expected that Dorsey will direct the company based upon feedback from users. Square Inc. has offices in San Francisco, Saint Louis and New York and is currently beta testing the invention with retailers in the United States.

    Sunstroke (中暑) is a condition that can quickly go from dangerous to deadly, especially if proper care isn't given immediately.

    Sunstroke, sometimes called heatstroke, is a result of the body temperature rising above safe limits. This causes the body's necessary functions to stop working.

    It's usually pretty easy to avoid sunstroke, as long as proper action is taken. In that case, you need to act as quickly as possible to return that person's body to a safe temperature. Here are a few tips to help treat sunstroke.

Call for help

    Call to get an ambulance as quickly as possible. This should be the first thing you do, especially if the sunstroke person has fainted(昏倒). Also, call for help from anyone nearby if you're in a public place. If there's no one around, call someone nearby if they can get there sooner than an ambulance. Ask everyone to bring you as much water as possible, if there isn't much nearby.

Get the person to a cooler area

    If there's a building nearby, aim for that. Anywhere with plenty of air conditionings and water is perfect. If a building isn't available, bring the person to a well shaded area.

Get the water flowing

    If the person is still conscious, get him or her to drink water. If there's a bathtub available，fill it with cool water and put the person in it.

If your water supply is limited, you have to save it. Dampen a towel or shirt and put it on the person's body. Focus on the face, neck，and chest.

Fan the person

    Getting moving air over the person cools him or her down. Use anything, a towel or sheet, a shirt your hands，or a piece of board. This is where having many people around really helps, as they can combine to fan the entire body.

    Welcome to Arundel Castle which is situated in West Sussex, England. The castle has a history of nearly 1000 years and has welcomed visitors traveling from all over the world. Arundel Castle also plays a starring role in many films.

    The Gardens

    The White Garden is planted with soft white Iceberg Roses, and Snow White Lilies.

    The Rose Garden is newly planted with lovely old-fashioned English roses that are at their very best in June and July.

    The Organic Kitchen Garden produces a wide range of seasonal fruits and vegetables, pears, cherries and apples.

    The Castle Shop

    In the Castle Shop, you will discover a wide and interesting range of gift ideas for everyone. It offers gifts and souvenirs designed to appeal to all tastes and pockets. Foods, china, books, and stationery (文具)are all available. Many are sold in this Castle Shop only.

    At Arundel Castle we pride ourselves on supporting local suppliers and actively encourage environmentally friendly products.

    The Arundel Festival 2014

    Saturday 16th to Monday 25th August

    The annual Arundel Festival gets bigger and better every year. It is one of the most amazing, diverse and easily accessible arts festivals in the UK, offering a mix of visual arts, music, theatre and street entertainment.

    Parking

    Coaches and mini-buses can drop off at the main Castle entrance in Mill Road and park in the main town car park that is opposite the Castle entrance. Please inform us when making your booking of how many parking permits are required.

May's Midi Festival

    As a rock festival, the Midi Festival 2017 in Beijing presented a musical carnival for fans. It was the 13th year of the outdoor music feast. This year, about 100 rock bands from home and abroad performed on five stages. It was held at a suburban park known for its mountains and grasslands. With beautiful scenery and exciting music, it was a good opportunity to enjoy rock with friends and family.

    2：00—10：30 P. m. , from April 29 to May 1. China Music Valley Grassland Park, Pinggu District. 400-610-3721.

    Fans of Painting

Ancient Chinese calligraphers(书法家)and painters were fond of painting on the folds of fans. Their excellence has left a wealth of outstanding works. A fan painting show exhibited 990 Ming and Qing(1368—1911)dynasty calligraphy and painting works on folding fans. They were selected from the collection of the National Museum of China. The themes of these fan paintings fell into four categories：natural landscapes, flowers and birds, figures and calligraphy.

    10：00 a. m. —2：30 P. m. , from April 29 to May 29. National Museum of China, 16 East Chang'an Avenue. 010-651-6400.

    Poetic Portraits

    Two artists held a joint exhibition with paintings featuring portraits of Chinese women in poetic poses. Wang Xiaojin, who is from Shandong Province, has been exhibiting since 1993. The other artist, Xu Zhigang, is originally from Liaoning Province, but is now in Beijing.

    10：00 a. m. —8：00 P. m. , from April 28 to June 20. Rong Gallery, Sheraton Pudong Hotel, 38 Pujian Road, Pudong New Area. 0137-6408-7294.

    Group Show

    The artist group,“island6”, worked in new media and held a show titled     Body-City-Mechanism. Through interactive video, photography, oil on canvas and sculpture, the artists explore themes of man and cyberspace.

    10：00 a. m. —6：00 P. m. , from April 30 to June 28. Studio Rouge, 50, Moganshan Road, Putuo District. 021-5252-7856.

    I had reached the age of twenty-eight. Still, I doubted the letter from my past would make it to me, all these years later. It was a simple creative writing assignment from when I was eighteen. The teacher collected our letters to our future selves in self-addressed envelopes with stamps and promised to mail them ten years later. Yet so much time had passed. Would he even remember?

    Thinking back on the letter, I vaguely recalled giving my future self some advice. When you're eighteen years old, twenty-eight seems like a grown-up age but I wasn't feeling as grown up as I believed my younger self had expected me to be.

    When the letter finally reached me, I opened it eagerly. It began," How much do you bet this letter will never get to you "It continued to greet me casually as if we were having an IM (instant messaging) chat. My eighteen-year-old self was so stressed! As a senior in high school, facing the SATS and college applications, I was apparently not quite happy and hoped I wouldn't worry so much in the future, and that I wouldn't forget to be present and enjoy my life!

    Contrary to my belief, my eighteen-year-old self did not have any demands of me, or expectations I might have failed to meet. Instead, she wrote," I'll stand by whatever you do. Even if you are not who I'm imagining now, I'll support you, because maybe who I' m imagining is someone else, and you are-well you're not someone else, you're me."

    I was blown away, and tears welled up in my eyes at this self-acceptance through time. I had put a lot of pressure on myself to be the best version of myself that I could be. However, I came to realize what I would have accomplished in ten years' time would pale in comparison to how I'd feel and who I'd be.