Beijing

Youth choir toper form

    The youth choir of China National Symphony Orchestra will soon perform classics including the Mexican folk song, The Golden Nightingale, and the Blue Danube, adapted from awaltz by Johann Strauss II. Pianists Zhao Lin and Wang Tianyang will join in the show.

7:30 pm, Jan 23.Forbidden City Concert Hall, inside Zhongshan Park, west of Tian'anmen Square, Xicheng district. 010-6559-8285.

Orchestra recitals

    The China National Center for the Performing Arts Orchestra led by conductor Lyu Jia will give two recitals, featuring works including Beethoven's Coriolanus Overture and Mozart's Symphonies No 40 & No 41 Jupiter. Cellist Wang Jian will join in the performances, playing Schumann's Cello Concerto in A minor, Op 129 andSaint-Saens' Cello Concerto No 1 in A minor, Op 33.

7:30 pm, Jan 15;2:30 pm, Jan 16. China National Center for the Performing Arts, No 2 WestChang'an Avenue, Xicheng District. 010-6655-0000.

Ballet from Paris

    Paris Opera Balletwill present two gala performances in the city. Besides highlights of classical ballet, such as Swan Lake and Manon, the program will also include modern pieces from the company's repertoire. The leading etoiles are Ludmila Paglieroand Karl Paquette.

7:15 pm, Jan 15-16.Shanghai Oriental Art Center, 425 Dingxiang Road, Pudong district.021-6854-1234.

Ensemble of swans

    Shanghai Ballet will present two performances of Swan Lake. The production choreographed by British artist Derek Deane has just completed a tour in 26 cities of the Netherlands. The spectacular production features an ensemble of 48 dancers.

7:15 pm, Jan 22-23.Shanghai Grand Theater, 300 Renmin Avenue, Huangpu district. 400-106-8686.

    In a paper published in the journey Science Advance, researchers describe how Matabele ants, a species of large ant known for attacking termite colonies (白蚁群落), will, after the battle, pick up injured fellow soldiers and carry them back to the nest where they can recover.

    The paper is the latest in a growing body of research that this form of helping behavior, previously observed in some mammals and birds, may not require complex emotion, and may, therefore, be far more widespread in nature than previously thought.

    “Here we have an example of an individual saving another individual,” says lead researcher Erik Frank who conducted the research. “We can be quite certain that the ants don't know why they are doing what they are doing.”

    It's a behavior that pays off for the colony. Our classic conception of worker ants is that they are essentially abandoned, but Mr. Frank and his colleagues calculated that the practice of rescuing nest mates results in a colony size that is a 28.7 percent larger than it would be had the ants left their fellow soldiers for dead.

    “These injured ants are able to recover from their injuries, ” says Frank. “They are essential for the safety and the betterment of the colony. ”

    When a Matabele ant is injured, as often happens during battles with termites, its body will give off two smelly chemicals that tell other ants to carry it back to the nest. Indeed, the researchers found that using these chemicals to seek help from uninjured ants will effectively activate the rescue behavior, supporting their theory that the ants were acting on pure instinct(本能), not more complex emotions.

    “The more we study rescue behavior in ants and other animals, the more we are going to realize that it's not just limited to the species we've observed so far, ” says Karen Hollis, a professor at Mount Holyoke College, mentioning studies that found that dolphins help other injured dolphins to the surface for air, capuchin monkeys defend each other during intergroup battles, and rats free other rats that are trapped.

    The China Daily newspaper group is looking for English-language senior business editors, senior copy editors, copy editors and graphic designers to strengthen its international team. We offer a competitive salary package, free and practical accommodation paid for, 90 percent medical assistance, a seven-day paid leave, eleven-day public holidays and a return ticket to the country of residence(住房).

    Senior Business Editor

    You must: assist the business editor in setting goals and working on achieving them; be an excellent team person who can generate ideas and think creatively and be able to rewrite totally if needed and mentor junior staff; ideally have been working or have worked in a position of responsibility and understand what leadership entails; have had at least five years' editing experience working on editing the Business Desk and be familiar with industry software.

    Senior Copy Editor

    You must: work on shifts in the Business Desk and usually have the last word before the page is sent to print; edit or rewrite copy and give snappy headlines and captions; have had at least two years' editing experience working on editing desks and be familiar with industry software.

    Copy Editor

    You must: be good at editing or rewriting copy and writing snappy headlines and captions; be able to work on shifts for different pages, and usually have the last word before the page is sent to print; have two years of editing experience working on copy desks, and be familiar with industry software.

    Graphic Designer

    You must: have excellent skills in information graphics; be good at illustrations(插图) and freehand drawings; be experienced in newspaper or magazine design; have a good sense of typography(活版印刷术); have good news judgment; be well-versed with Macintosh software, including InDesign, Illustrator and Photoshop; be fluent in English.

For enquiries or to apply, write to job@chinadaily.com.cn.

    This year's flu season is pretty scary. To try to minimize the effects, public officials are still urging anyone who hasn't yet gotten their flu shot to get one as soon as possible. However, even if every single person got a shot in the arm, the vaccine(疫苗)—with its excellent 36 percent effectiveness—would not prevent everyone from getting infected with the annoying virus. Knowledge is power, so here's what goes on in your body when you come down with the flu.

    The influenza virus primarily attacks your nose, throat, and the tubes that lead to your lungs. But the flu is so much more than that. Your muscles ache, your head hurts, and your appetite goes down, among other things. To our surprise, almost all of these symptoms have less to do with the virus itself than with your immune(免疫的)response to them. Unfortunately, the very defense you have in place to get rid of the flu is the reason you feel so painful when you recover.

    The virus usually enters through your mouth, typically by way of your hands. But it takes a few days for symptoms to set in. While this process might cause some harm to your nose and throat, it's nothing major, and nothing like the symptoms that typically accompany a bad or even mild case of the flu.

    The real fun starts when your immune system begins to fight. Your immune system comes in two parts: the innate system and the adaptive. The innate immune system is essentially an all-purpose tool. As soon as your body senses the presence of any injury or invader (入侵者), the innate immune system launches into action by producing tiny proteins called cytokines and chemokines. The cytokines reproduce almost immediately and start to attack the virus. This increase in immune cells creates an serious inflammation(炎症) throughout the body. But the worst is still to come. Meanwhile, the chemokines work with the adaptive immune system to help create T cells. These cells are a special type of white blood cell that works in a much more specific way: They find the influenza virus, identify what's special about it, and create something unique on their surface that finds and destroys similar invaders.

    For many years, machines have been doing work that people once did, including some difficult jobs. Search and rescue operations in dangerous environments are often seen as the first areas that will employ high technology robots. But there is another area where they may soon take jobs traditionally held by human beings: the restaurant industry.

    Teams from around the world competed in early June at the DARPA Robotic Challenge Finals in California. A team from R. O. Korea and its robot, called DRC-Hubo, won first place in the competition. The second and third place finishers were from the United States.

    The robots were required to drive a vehicle, climb up steps and do mechanical work. Such activities are easy for humans to perform, but more difficult for machines.

    Not all of the competitors were successful. The failures showed how difficult it is to design effective walking machines.

    Recently, crowds gathered for the food machinery and technology show in Tokyo, Japan. They witnessed a robotic chef preparing food. Other machines cooked, baked tasty pastries and even made sushi.

    Akihiro Suzuki works at Yaskawa Electric, a company that develops robots. He says robots cannot do everything a human can, but they are able to work without becoming tired.

    He says robots cannot taste food, change heating levels or seasonings to get the best flavor. But he says if a food can be easily prepared, a robot can repeat the same movement to reproduce the same meal.

    One Japanese woman who saw the robots working wanted to bring them home. Masayo Mori says she would like to have a husband who could work like a robot. Suzumo Machinery demonstrated its sushi maker robot. It performs the often difficult work of wrapping the popular Japanese food. Hiroshi Monden is an official with the company. He says people all over the world now eat sushi, but there are not enough skilled workers to prepare for it. He says his machine can help anyone make sushi.

The Young Scholars Program

    The University of Maryland's Young Scholars Program is a perfect summer camp for academically talented teenagers who want to earn college credits, pursue academic interests or discover college life at the University of Maryland. The program is challenging and rewarding. Students have the opportunity to show that they can be successful in a university environment.

    The Activities

    During three weeks of exploration, teens preview the university experience, study with students who share similar interests and communicate with the best teachers of the University of Maryland in a dynamic and challenging classroom environment. Students can have trips to nearby Washington, DC and enjoy movie nights and activities at the student union. Workshops and seminars featuring speakers in academic fields further enrich the learning experience.

    The Courses

    The Young Scholars Program offers college courses that are at the cutting edge of theory, thought and technology. Classes generally meet every day from Monday to Friday. The program is a great introduction to the University of Maryland, Participants can benefit from the University of Maryland's vast resources, including libraries, computers and instructional labs.

    The Rewards

    Upon program completion, teens will go home with better preparations for the college experience—both academically and socially. In addition, students earn three college credits that post to the University of Maryland transcript (成绩单).

    The Application

    The application process includes submission of the application, high school transcript and a letter of recommendation.

    Ages: 14-18

    Mailing address: The University of Maryland College Park

    For more information, call 3014057762.