The new two-child policy is making job hunting more difficult for women when about 40 percent of them said they were asked whether they planned to have a second child during job interviews, according to a report in Chongqing.

    China dropped its decades-long one-child policy in October and allowed each family to have two children. The country now has about 270 million married women of childbearing age.

    This change has put millions of career women in a dilemma between family and career. Employers also face big challenges as more female workers will have two childbearing leaves, seven to eight months altogether.

    A human resources website www.job.cq.qq.com conducted a survey among 500 employers and 5,000 job seekers about how the two-child policy affects the job market.

    Though two thirds of employers said the policy would make no difference to their recruitment(招聘), the survey showed that more than 70 percent of job seekers believe that bearing a second child will make women less popular in the job market. Forty percent of employers said they will give priority to married women with two children, according to the survey.

    Lin Xia, 29, quit her job after giving birth to her first child. She is now preparing to return to work. After several inquiries at a job fair, she found that the employers are concerned about future birth plans. "I thought it would be easier to find a job after giving birth," she was quoted as saying by the website. "I had to answer whether I will have a second child before I could get a chance for a job interview."

    Liang Siqi, 23, a college graduate, said although employers did not ask her the child question yet, she will not plan to have two children. "It (having two children) will definitely affect my career and personal life, so I will have only one," she said.

    Zhou Jiansong, who is in charge of human resources at a large private high-tech group in Chongqing, said the company will discuss birth issues with interviewees in order to make a better work plans. "We fully respect a women's right to bear a child or two," he said. "But you don't want them to go on a childbearing leave soon after they join your company." The experts expect more labor dispute cases concerning childbearing leave rights when bearing a second child in future.

    My students entered the art room with their usual eagerness to see what they would be learning in today's class. Little did they know they were going to be students for a new teaching method that is spreading the nation.

    I often use videos as previews and supplements (补充) to our art lessons providing students with a variety of artists showing their skills in real-life situations outside the classroom. Finding a new painting technique called glue batik(胶水蜡染),  I thought of something new I hadn't tried before!  How awesome would it be to learn a new technique together with artists? The lesson was planned, presented to the students without any introduction or set objectives. I also asked the students to watch and pause the video as often as they needed to.

    They watched as the artist explained and showed her skills, taking notes on her steps and results. After the video, they shared what they felt the artist's objectives were, her end result using art vocabulary as well as the steps they would need to know to present their own examples. Then they began creating their works using the glue batik technique.

    Surfing the Internet a couple of weeks later, I found that the teaching method I used sounded very familiar to a new movement in education called flipped teaching, which was developed by Jonathan Bergmann. He asked his students to watch video lectures at home and do exercises (homework) in class under supervision (监督). He found that grades went up and he also found time for other types of activities, which Bergmann states are more important than the videos.

    Back to my art class, the students were learning to get ideas, make predictions, and explain reasoning to their classmates. Together they compared, asked questions and made discoveries as they presented the technique.

    How are you and your family going to celebrate Earth Day? It's a great day to get outside and ride a bike, but there are other ways you could spend the day. Here are four books. You can learn more about the earth and the animals that make the world a special place to live in.

    The Busy Beaver, by Nicholas Oldland

    Beaver is very, very busy, and he doesn't always think carefully. As a result, he makes a mess of the forest and ends up in hospital. Finally, he realizes how careless he's been and decides to make things right when he returns to the forest.

    Lessons from Mother Earth, by Elaine Mcleod

    Five-year-old Tess is visiting her grandmother and, for the first time, she visits the garden. Along the way, Tess's grandmother tells her the rules of the garden, "You must always take good care of our garden. Never throw rubbish around. There is plenty for everyone to share if we don't destroy the soil." The story is beautifully told as a caring conversation between a child and her grandmother.

    Luz Sees the Light, by Claudia Davila

    When Luz's community(社区) experiences a series of black-outs(停电), she quickly comes to understand the need to save energy and find other ways of doing things. With the help of her friends and neighbors, she creates a community garden and park that everyone can use. The book attracts many young readers.

    The Lorax, by Dr Seuss

    A young boy learns of the role of the Lorax as protector(保护者) of the trees, and how his home became polluted. The book contains memorable forestry conservation (森林保护).

    There's a new achievement in 3D printing that's beginning to come into focus: food. Recent development has made possible machines that print, cook, and serve foods on a mass scale(大规模地). And the industry isn't stopping there.

    Food production

    With a 3D printer, a cook can print complicated chocolate sculptures and beautiful pieces for decoration on a wedding cake. Not everybody can do that—it takes years of experience, but a printer makes it easy. A restaurant in Spain uses a Foodini to "re-create forms and pieces" of food that are "exactly the same", freeing cooks to complete other tasks. In another restaurant, all of the dishes and desserts it serves are 3D-printed, rather than farm to table.

    Nutrition

    Future 3D food printers could make processed food healthier. Hod Lipson, a professor at Columbia University, said, "Food printing could allow consumers(消费者) to print food with customized(定制的) nutritional content, like vitamins. So instead of eating a piece of yesterday's bread from the supermarket, you'd eat something baked just for you on demand."

    Challenges

    Despite recent advancements in 3D food printing, the industry has many challenges to overcome. Currently, most ingredients (烹饪原料) must be changed to a paste（糊状物）before a printer can use them, and the printing process is quite time-consuming, because ingredients interact with each other in very complex ways. On top of that, most of the 3D food printers now are limited to dry ingredients, because meat and milk products may easily go bad. Some experts are doubtful about 3D food printers, believing they are better suited for fast food restaurants than homes and high-end restaurants.

Wilderness

    "In wilderness(荒野) is the preservation of the world." This is a famous saying from a writer regarded as one of the fathers of environmentalism. The frequency with which it is borrowed mirrors a heated debate on environmental protection: whether to place wilderness at the heart of what is to be preserved. 

    As John Sauven of Greenpeace UK points out, there is a strong appeal in images of the wild, the untouched; more than anything else, they speak of the nature that many people value most dearly. The urge to leave the subject of such images untouched is strong, and the danger exploitation(开发) brings to such landscapes(景观) is real. Some of these wildernesses also perform functions that humans need—the rainforests, for example, store carbon in vast quantities. To Mr.Sauven, these "ecosystem services" far outweigh the gains from exploitation.

    Lee Lane, a visiting fellow at the Hudson Institute, takes the opposing view. He acknowledges that wildernesses do provide useful services, such as water conservation. But that is not, he argues, a reason to avoid all human presence, or indeed commercial and industrial exploitation. There are ever more people on the Earth, and they reasonably and rightfully want to have better lives, rather than merely struggle for survival. While the ways of using resources have improved, there is still a growing need for raw materials, and some wildernesses contain them in abundance. If they can be tapped without reducing the services those wildernesses provide, the argument goes, there is no further reason not to do so. Being untouched is not, in itself, a characteristic worth valuing above all others.

    I look forwards to seeing these views taken further, and to their being challenged by the other participants. One challenge that suggests itself to me is that both cases need to take on the question of spiritual value a little more directly. And there is a practical question as to whether wildernesses can be exploited without harm.

    This is a topic that calls for not only free expression of feelings, but also the guidance of reason. What position wilderness should enjoy in the preservation of the world obviously deserves much more serious thinking.

                                                  Printable Tags Turn Everyday Objects into Smart Devices

    Engineers have developed printable metal tags (标签)that could be attached to everyday objects and turn them into smart Internet of Things devices.

    The metal tags are made from copper foil (铜箔) printed onto thin, flexible, paper-like materials to reflect WiFi signals. The tags work essentially like "mirrors" that reflect radio signals from a WiFi router(路由器). When a user's finger touches these "mirrors", it disturbs the reflected WiFi signals in such a way that can be remotely sensed by a WiFi receiver like a smartphone.

    The tags can be nailed onto objects that people touch every day, like water bottles, walls or doors. These objects then become smart and connected devices that can signal a WiFi device whenever a user interacts with them. The tags can also be shaped into thin keypads or smart home control panels that can be used to remotely operate WiFi-connected speakers and other Internet of Things devices.

    Xinyu Zhang, a professor of electrical and computer engineering, named the technology LiveTag. He pictures people using LiveTag technology to track human interaction with everyday objects. For example, LiveTag could potentially be used to assess the recovery of patients who have suffered from stroke (中风). "When patients return home, they could use this technology to provide data based on how they interact with everyday objects at home, whether they are opening or closing doors in a normal way, or if they are able to pick up bottles of water, for example. The amount, intensity and frequency of their activities could be recorded and sent to their doctors to evaluate their recovery," said Zhang. "And this can all be done in the comfort of their own homes rather than having to keep going back to the clinic for frequent testing," he added.

    The researchers note several limitations of the technology. LiveTag currently cannot work with a WiFi receiver further than one meter away, so researchers are working on improving the tag sensitivity and detection range. Ultimately, the team aims to develop a way to make the tags using normal paper and ink printing, which would make them cheaper to mass produce.