At the end of last summer my parents' house in Tunstall went up in flames. Several months on, we're still trying to find out exactly what happened, but my parents John and Carole were out when more than half the house was burned to the ground. What was left behind needed to be pulled down and most of the things that were not actually destroyed were so smoke-damaged that they would have to be thrown away.

My parents were both teachers and not the kind of people to fill their house with expensive furniture, so most of their belongings were memories—--including photos and the tracksuit(运动服) that Dad was given when he carried the Olympic torch (火炬). But what really upset me was not the loss of these things.

    Dad had an album(唱片) for every occasion. Once his car got broken into and he was more upset that his cassettes had been nicked(划伤) than about all the rest of the damage. So when I was considering doing something to help after the fire, I immediately thought about his music. We couldn't get the old photos back, but we could replace his CDs and records. Then I started a little page about my dad on the blogging site Tumblr.

    Within a few days, news of what had happened spread by word of mouth, and I was getting messages from friends I hadn't spoken to for years. I also heard from Dad's mates and even from people neither of us had ever met. Soon packages arrived from all over the country. I expected 100CDs if we were lucky, but his new collection would now run into the thousands!

    On Christmas Day, all the records, tapes and CDs were packed into a beautiful box, which of course, was for my dad. A lot of them came from his previous students and he was touched to realize what an effect he had had on their lives. Eventually , he told me, “What could have been a bad Christmas has been a very good one.”

    Japan is aging faster than any other nation. By the end of this decade, there will be three retirees for every child under 15 and before long, one in six people will be over 80. Its population will soon be falling by nearly a million people every year and some people predict that, some time in the next century, the last Japanese person will die. Other countries are encouraging immigration to deal with their demographic woes. But not Japan, which is using different ways to reduce pressure put on health care and social services.

    The Toto-made toilet, common in Japanese hotels, can push up to help the elderly. Now Toto is working with Daiwa House, Japan's largest house builder, to equip toilets for retirees. These have medical sensors that measure blood sugar levels, the blood pressure and body fat of the user. The data is emailed to the local GP through a built-in internet device (装置). So make sure you eat your greens and stay regular, or the doctor will be in touch.

    The over-75s account for more than a quarter of the deaths in car accidents on Japanese roads. Toyota is working with Professor Kawashima, who developed brain training games for Nintendo, to create intelligent cars that monitor brain activity in the elderly. Other technologies could also work to keep elderly drivers cautious.

    Japan has twice as many pets as it has children. But real animals are difficult to look after as their owners age. Paro is a furry white baby seal robot which responds to petting by moving its tail and opening and closing its eyes. It shows emotions such as surprise, happiness and anger, and has sold well in nursing homes where it is reported to stimulate (刺激) responses among those with dementia (痴呆).

    Japan's Institute of Physical and Chemical Research has developed Riba, a nursing care robot that can lift the elderly out of bed.

    Encouraging pupils to keep noise to a minimum should be a valuable part of all children's education, according to a new research.

    Dr. Helen Lees, from Stirling University's school of education, says that “enforced (强制的) silence” is seen as a punishment and often acts to suppress children's natural ability. But she says that teaching children about the benefits of “enforced silence” — deliberate stillness that gives them the opportunity to focus and reflect in a stress-free environment — can have a significant effect on pupils' concentration and behaviour.

    It is the latest in a string of researches to establish a link between the classroom environment and pupils' academic ability.

    A study almost a decade ago in London found that children's exam results were cut by as much as a third if they taught in noisy classrooms. Teaching unions have also called for a     limit of 26℃ to be put on classroom temperatures because teachers and pupils struggle to work in hot conditions and some educationalists claim that too much clutter(杂乱的东西) on classroom walls can prevent children from concentrating.

    Dr. Lees said: “When we take some research on school settings and put it all together, what we see is that education without silence does not make much sense. In areas of better learning outcomes, better self-confidence and well-being measures, enforced silence in a person's life and an individual's education is shown throughout the relevant research to be a benefit.”

    Dozens of schools across Britain already introduce periods of “reflective silence” into the timetable.

    Kevin Hogston, head of Sheringdale Primary, south London, has just introduced a minute's silence at the start of twice-weekly meetings in which children are taught breathing techniques and encouraged to reflect. The school plans to introduce it into classrooms every day.

    Owning a smartphone may not be as smart as you think. They may let you surf the Internet, listen to music and snap photos wherever you are…but they also turn you into a workaholic, it seems. A study suggests that, by giving you access to emails at all times. The all-singing, all-dancing mobile phone adds as much as two hours to your working day.

    Researchers found that Britons work an additional 460 hours a year on average as they are able to respond to emails on their mobiles. The study by technology retailer Pixmania, reveals the average UK working day is between nine and ten hours, but a further two hours is spent responding to or sending work emails, or making work calls.

    Almost one in ten admits spending up to three hours outside their normal working day checking work emails. Some workers confess they are on call almost 24 hours a day, with nine out of ten saying they take work emails and calls outside their normal working hours. Nearly two-thirds say they often check work emails just before they go to bed and as soon as they wake up, while over a third have replied to one in the middle of the night.

    Ghadi Hobeika, marketing director of Pixmania, said:" The ability to access literally millions of apps, keep in contact via social networks and take photos and video as well as text and call has made smartphones valuable for many people. However, there are drawbacks. Many companies expect their employees to be on call 24 hours a day, seven days a week, and smartphones mean that people literally cannot get away from work. The more constantly in contact we become. The more is expected of us in a work capacity."

    Just ask any new parent: Adding a baby to a household can also add stress to a career. Now, a new study backs that up with some astonishing numbers: After science, technology, engineering, and mathematics(STEM)professionals become parents, 43%of women and 23% of men switch fields, transition(转变)to part-time work, or leave the workforce entirely.

    Many researchers and parents already knew that STEM can be unwelcoming to parents, particularly mothers. But" the considerable departure was astonishing, "says Erin Cech, an assistant professor of sociology at the University of Michigan in Ann Arbor and lead author of the study, published in the Proceedings of the National Academy of Sciences. For both genders, "the proportions were higher than we expected."

    The surprisingly high reduction rate for men also highlights that" parenthood in STEM is not just a mothers' issue; it's a worker issue, "Cech says. She hopes that the findings" might motivate changes, "such as more paid parental leave from both government and employers and policies that better support flexible work time without a tight routine. "We are not suggesting that people who want families should avoid STEM; that's not the solution," she emphasizes.

    By 2018, 78% of new fathers were still working in STEM, the vast majority full time. For new mothers, 68% were still in STEM, but only 57% worked full time. For professionals without children, on the other hand, 84% of men and 76% of women were predicted to still be working in STEM full time in 2018. For the new parents across all fields, 16% of women were working part-time and 15% had left the workforce, as compared with just 2% and 3%, respectively, for men. These sharp differences make clear that, even though the reduction rate for fathers is higher than expected, mothers still face particular career challenges.

Biofuels (生物燃料), gained from plants and animal matter, are a key solution to the environmental problems caused by fuels like coal. "Bioalcohol (生物酒精) is the most common biofuel and is produced by sugars found in materials such as corn. With some engine redesigned, it can be used directly by cars, buses, etc. ," says Professor Daniel Tan, "12 percent of transport fuel could come from biofuels, especially bioalcohol, by 2030. "

But a 2016 study of biofuels said, "Bioalcohol presently is mostly produced with food crops. Altogether, the environmentally-friendly biofuels rely on about 2-3 percent of the global water and land used for agriculture, which could feed a large number of hungry people. "

Energy experts have therefore been trying to deal with the problem. Recent research led by an international team found that the agave (龙舌兰) plant might offer a way out. This plant tends to be the right bioalcohol source to supersede others such as sugarcane (甘蔗) and corn.

Daniel Tan explains that the agave can be grown in unfavorable conditions and is not a major food crop. "It can grow in areas that lack water and rainfall without being watered by farmers, and it does not compete with food crops or put demands on limited water. This kind of useful plant is recently being grown in Australia. It can survive Australia's hot summers," he says.

The study finds that sugarcane produces just a little more fuel per square meter each year than the agave. However, the agave outperforms sugarcane in a range of areas, including pollution to the earth, and water using. The agave uses 69 percent less water than sugarcane and 46 percent less water than corn for the same amount of fuel produced. As for corn，it produces less fuel per square meter each year than the agave.

However, Daniel Tan states: "The first generation of bioalcohol from the agave recently faces a big competition from oil, whose recent low price makes it far more attractive to customers. Without some policy support from the government, bioalcohol production from the agave faces big challenges. "