Imagine that you're looking at your company-issued smartphone and you notice an e-mail from Linkedln:“These companies are looking for candidate like you!” You aren't necessarily searching for a job, but you're always open to opportunities, so out of curiosity, you click on the link. A few minutes later your boss appears at your desk. “We've noticed that you're spending more time on Linkedln lately, so I wanted to talk with you about your career and whether you're happy here,” she says Uh-oh.

    It's an awkward scene. Attrition(损耗) has always been expensive for companies, but in many industries the cost of losing good workers is rising, owing to tight labor markets. Thus companies are making greater efforts to predict which workers are at high risk of leaving so that managers can try to stop them. Methods range from electronic monitor to sophisticated analyses of employees' social media lives.

    Some of this work may be a reason to let employees to quit. In general, people leave their jobs because they don't like their boss, don't see opportunities for promotion or growth, or are offered a higher pay; these reasons have held steady for years.

    New research conducted by CEB, a Washington-based technology company, looks not just at why workers quit but also at when. “We've learned that what really affects people is their sense of how they're doing compared with other people in their peer group, or with where they thought they would be at a certain point in life, says Brian Kropp, who heads CEB's HR practice. “We've learned to focus on moments that allow people to make these comparisons.”

    Technology also provides clues about which star employees might be eyeing the exit. Companies can tell whether employees using work computers or phones are spending time on (or even just opening e-mails from) career websites, and research shows that more firms are paying attention to these things. Large companies have also begun tracking badge swipes(浏览痕迹)—employees' use of an ID to enter and exit the building or the parking garage—to identify patterns that suggest a worker may be interviewing for a job.

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    Cultures are based on social and linguistic(语言的) communities.

    In South Africa, we exist amongst diverse groups which are culturally different. This makes us multicultural. Toit, one sociologist in the U.S., explains that multiculturalism is more than the expression of cultural variety, and it also concerns communication. He adds that for multiculturalism to “succeed”, meaningful communication is a requisite.

    In multicultural countries, it is necessary that the education system encourages learners to become interculturally competent (胜任的). The process of becoming intercultural is a “personal transformation” from being cultural to being intercultural. This does not mean that a highly intercultural person's identity is culture-free. Rather, it is not rigidly bound by membership to anyone particular culture. Furthermore for learners to become interculturally competent, it is necessary that all involvers in the education system become aware of their own cultural background.

    Toit conducted a survey, the objective of which was to determine the problems experienced by learners in a multicultural learning environment. Two hundred questionnaires were administered. 55% believed that different values and beliefs were a major cause of the communication problems. Closer examination of the interactions showed that learners were in fact mostly associating with members of their own cultural groups. Toit points out that in an intercultural communication, people would be challenged by the sudden difference in culture, and this may force an evaluation or re-evaluation of their beliefs and values. 45% of the learners believed that there was lack of trust among their peers. The general lack of trust between two complete strangers leads to an uncomfortable situation. They said that when learners are asked to work in groups, they are unwilling to do so. They added that one of the many issues that contribute to such negative opinions was the language barrier.

    Customers who come into the Waffle House recognize server Evoni Williams, a soft-spoken 18-year-old from Texas City. It all started with a Facebook post. On the morning of March 3, Laura Wolf was eating breakfast at the Waffle House in La Marque when she overheard an older man, who reminded her of her late father, tell Williams he had trouble with his hands. The man, later identified as regular customer Adrien Charpentier, had an oxygen tank nearby and needed help cutting up his food. “Without hesitation,” Wolf wrote, Williams “took his plate and began cutting up his ham.”

    Impressed, Wolf posted the moment on her Facebook page to share the warmth and kindness with all. The following day, Williams's Facebook notification（关注）began to light up. Her friends saw Wolf's post and tracked her in it.

    Williams had no idea that someone took a photo that morning. The diner was so busy that a line extended outside the door. She said helping Charpentier was reflexive. She has been working at Waffle House since last June to save for college, and this, she figured, was just the right thing to do. “I would want someone to help my grandmother or grandfather,” Williams said.

    The post began to make its rounds in La Marque and eventually landed in front of the city's mayor, Bobby Hocking. He decided to declare March 8 as Williams's day, and also received an email from Texas Southern University President Austin A.Lane, asking if the school could present Williams with a scholarship.

    Williams still works at Waffle House five days a week and plans to do so until she starts classes in the fall at Houston-based Texas Southern. Wolf said Williams does not have a car to get to classes, but some people have offered to start a GoFundMe page for her, proving that a moment of a kindness can change a life.

    The students are having their chemistry class. Miss Li is telling the children what water is like. After that, she asks her students some questions, “Boys and girls! What is water? Can you tell me?" She waits for a few minutes, but no one answers her. Then Miss Li asks again. “Why don't you answer my question? I tell you what water is like, right?”

    Then a boy puts up his hand and says, “Miss Li, you tell us that water has no color and no smell. But I think that water is something that is black when I wash my hand in it.” All the students begin to laugh. Miss Li laughs too. Then another boy puts up his hand, Miss Li says “What do you think, Wang Bing?” The boy says:” Miss Li, where can we find water that has no color and no smell?”

    “Why do you say so?” Miss Li asks.

    “The water in the river behind my house is always black and it has a bad smell.” answers the boy. And most of the children think he is right.

 “I am sorry to hear that, children.” says the teacher. “Our water is getting dirtier. That is a problem. All of us must try our best to make it clean again.”

    You have probably heard of the Mozart effect. It's the idea that if children or even babies listen to music composed by Mozart, they will become more intelligent. A quick Internet search reveals plenty of products to assist you in the task. Whatever your age is there are CDs and books to help you taste the power of Mozart's music, but when it comes to scientific evidence that it can make you more clever, the picture is more mixed.

    The phrase "the Mozart effect" was made up in 1991, but it was a study described two years later in the journal Nature that sparked real media and public interest about the idea that listening to classical music somehow improves the brain. It is one of those ideas that sound reasonable. Mozart was undoubtedly a genius himself; his music is complex and there is a hope that if we listen to enough of it, we'll become more intelligent.

    The idea took off, with thousands of parents playing Mozart to their children, and in 1998 Zell Miller, the Governor of the state of Georgia in the US, even asked for money to be set aside in the state budget so that every newborn baby could be sent a CD of classical music. It was not just babies and children who were exposed to Mozart's music on purpose, even an Italian farmer proudly explained that the cows were played Mozart three times a day to help them produce better milk.

    I'll leave the debate on the impact on milk yield to farmers, but what about the evidence that listening to Mozart makes people more intelligent? More research was carried out but an analysis of sixteen different studies confirmed that listening to music does lead to a temporary improvement in the ability to handle shapes mentally, but the benefits are short-lived and it doesn't make us more intelligent.

    Over the past few years, smart home tech has become more and more accessible and it's increasingly easy to find that you've bought a product that includes smart home features. So what does a modem smart home look like, and how can you start building one? You could get to start making your home smarter by the following gadgets.

    Ecobee 4

    Measuring both occupancy and temperature, its sensors signal your Ecobee to automatically switch to the right mode.

    It only takes about 30 minutes, thanks to an easy-to-follow installation guide and an in-app step-by-step walkthrough.

    Easily adjust temperature using your voice with built-in Alexa or from wherever you are using your mobile devices.

    Amazon Smart Plug

    Amazon Smart Plug works with Alexa to add voice control.

    Schedule lights, fans, and appliances to turn on and off automatically, or control them remotely when you're away.

    It's simple to set up and use. Plug in, open Alexa app, and start using your voice.

    The Philips Hue White Smart Bulb

    It works with Amazon Alexa to support dimming through voice control.

    Schedule your own custom lighting scenes. Set the smart bulbs to turn on and off at a pre-set time.

    To install, simply screw (拧) the smart bulbs into your desired light location.

    Control smart-bulb-equipped lamps and overhead lights via the Philips Hue App.

    August Smart Lock Pro

    It works with Alexa for voice control (Alexa device sold separately).

    Control keyless access. It locks automatically behind you, and unlocks as you approach.

    Install in about 10 minutes with just a screwdriver (螺丝刀) .