What is the first thing you notice when you walk into a shop? The products displayed(展示) at the entrance? Or the soft background music?

    But have you ever notice the smell? Unless it is bad, the answer is, likely to be no. But while a shop's scent may not be outstanding compared with sights and sounds, it is certainly there. And it is providing to be an increasing powerful tool in encouraging people to purchase.

    A brand store has become famous for its distinctive scent which floats through the fairly dark hall and out to the entrance, via scent machines. A smell may be attractive but it may not just be used for fresheningair. One sports goods company once reposed that when it first introduced scent into its stores, customers' intension to purchase increased by 80 percent.

    When it comes to the best shopping streets in Pairs, scent is justas important to a brand's success as the quality of its window displays and goods on sales. That is mainly because shopping is a very different experience to what it used to be.

    Some years ago, the focus forbrand name shopping was on a few people with sales assistants' disproving attitude and don't-touch-what-you-can't afford displays. Now the rise of electronic commerce(e-commerce) has opened up famous brands to a wider audience. But whilee-shops can use sights and sounds, only bricks-and-mortar stores(实体店) can offer afull experience from the minute customers step through the door to the moment they leave. Another brandstore seeks to be much more than a shop, but rather a destination. And scent is just one way to achieve this.

     Now a famous store uses complex man-made smell to make sure that the soft scent of baby powder floats through the kid department, and coconut(椰子) scent in the swimsuit section. A departmentstore has even opened a new lab, inviting customers on a journey into the store's windows to smell books, pots andd rawers, in search of their perfect scent.

    When I was a child, my grandmother Adele took me to museums, restaurants, dances. She showered me gifts from her travels around the world. But I can only remember a book she gave me—one book that, to this day, I have not read. She presented me with her own favorite childhood book: Hans Brinker. My grandmother was happy to share this book with me. She even decorated the title page with her proud writing.

    I tried to read it. I adored reading, and would dive into a new pile of books from the library all at once. But something about Hans Brinker just wouldn't let me in. The story was set in Holland, a long time ago. It felt dull and unfamiliar, even though I was a fan of classics of other times and places. I simply read the first pages over and over. I could not progress.

    Standing on a bookshelf in our living room, the book was like something I avoided. It scolded me for not being interested, for not trying hard enough, for disappointing my grandmother. The book started to fit in, almost forgotten, until Adele asked. Had I read it? Did I like it? Always determined, she wanted to know the answer. I would make some kind of excuse, but feel bad, and open it again, hoping for a new reaction. The book weighed on me.

    Years passed and finally Adele and I both accepted that I would never read Hans Brinker. Eventually I cleared the book from the shelf. The Hans Brinker experience led me to set a rule that I've lived by ever since: Do not ask about a book given as a gift and don't let anything become your barrier. What Adele originally wanted to do is to give book-giving special meaning, but she increased the possibility of the owner to be a disappointment.

    Of all the mountain gorillas that veterinarian Mike has treated in the past 18 years, a gorilla named Ijabo stands out the most. When Ijabo was three days old, an examination showed that one of his legs was badly damaged. Mike removed Ijabo's leg below the knee. Five years later, Mike says Ijabo is doing well. “I still see him every now and again,” Mike told TFK. “It's heartwarming.”

    Mike is a co-director of Gorilla Doctors. The organization provides medical care to ill and injured mountain and Grauer's gorillas. Its 16 veterinarians work in national parks in the Democratic Republic of the Congo, Rwanda, and Uganda. For years, the apes have fallen victim to habitat loss, poaching, and disease. According to their website, Gorilla Doctor's task is to save the apes “one gorilla at a time”.

    The doctors treat mostly gorillas that are accustomed to humans. Trackers, guides, and veterinarians check on habituated gorillas in the field several times each week. Sometimes, a gorilla has a medical problem that requires treatment.

    That calls for an intervention. A helper shoots the animal with a dart(飞镖). If the gorilla appears to have a serious but treatable illness, the dart contains antibiotics to fight off infection. If it appears to need surgery, the dart contains a drug that leaves the gorilla unconscious and unable to feel pain.

    Although the gorillas are critically endangered, there are signs of hope, thanks in part to Gorilla Doctors. The mountain gorilla is the only great-ape species whose population is growing.

    “Habituated mountain gorillas are increasing by 4% each year, which is as fast as the human population is growing globally,” Mike says. He notes a recent study that credits the work of Gorilla Doctors for 50% of that growth. He is proud of the role his team has played in making it happen.

    Google's new camera, called Clips, is a small, smart device. It comes with a case that has a clip (夹子)，but it's not designed to be worn on your clothing. Most interestingly, it uses artificial intelligence to take photography out of your hands so it can capture moments on its own.

    This roughly 2-inch by 2-inch camera, with a three-hour battery life and Gorilla Glass for toughness, is intended for candid moments, like when a child does something cute that may happen too quickly for you to pull out your smartphone.

On board the Clips device, it uses machine learning algorithms (计算程序) to help capture scenes. Those algorithms include face recognition. “Once it learns that there's a face you see frequently, it'll try to get nice photos of those faces,” said Juston Payne, the device's product manager. And they also want it to recognize facial expressions, which involved “training it to know what happiness looks like”. The Google team also trained it to recognize what not to shoot — like when a child's hand is over the lens, or if it is tossed in a dark purse.

    The only way to see the images is by connecting the camera with your phone, as it has no screen for viewing or editing.

    Were people concerned it could seem strange? Yes, Payne admitted. But they said they addressed that by making it obvious what it is. A green light on the front signals that it is on. Besides, unlike a camera meant to monitor your home, it is not connected to the Internet.

    “This product is only possible because of the way that silicon has advanced” Payne said, noting that it was only in the past year or so that they could squeeze the technology down into a device this size. Going forward, we're likely to get more assistance from the artificial intelligence packed into our apps and gadgets.

    Body language is a broad term for several forms of communication using body movements or gestures, instead of, or as a complement to, sounds, verbal language, or other forms of communication. In turn, it is one category of paralanguage, which describes all forms of human communication that are not language.

    Paralanguage including body language has been extensively studied in social psychology. In everyday speech and popular psychology, the term is most often applied to body language that is thought to be involuntary, but in fact the distinction between voluntary and involuntary body language is often blurred: a smile or a wave may be given either voluntarily or involuntarily, for example.

    Voluntary Body Language is less commonly discussed because it seems unproblematic. It refers to movement, gestures and poses intentionally made by the person: smiling, hands, imitating actions, and generally making movements with full or partial intention of making them and a realization of what they communicate.

    The relation of body language to animal communication has often been discussed. Human paralanguage may represent a continuation of forms of communication that our non-linguistic ancestors already used, or it may be that it has been changed by co-existing language. Some species of animals are especially skilled at detecting human body language, both voluntary and involuntary: this was the reason for trying to teach the chimpanzee Washoe American Sign Language rather than speech and perhaps the reason why the Washoe project was more successful than some previous efforts to teach apes how to dance.

    Body language is a product of both genetic and environmental influences. Blind children will smile and laugh even though they have never seen a smile. The ethnologist (文化人类学者) Iraneus Eibl-Eibesfeldt claimed that a number of basic elements of body language were universal across cultures and must therefore be fixed action patterns under instinctive (本能的) control. Some forms of human body language show continuities with communicative gestures of other apes, though often with changes in meaning. More refined gestures, which vary between cultures (for example the gestures to indicate "yes" and "no"), must obviously be learned or modified through learning, usually by unconscious observation of the environment.

    Older women who walk a little over three kilometers each day might live longer than less active women of the same age, a new study suggests.

    Many Americans hoping to stay healthy set a daily goal of 10, 000 steps, or about eight kilometers. They often have this goal because they are wearing electronic devices which set that target, note researchers in the United States. Their findings appeared recently in the publication JAMA Internal Medicine.

    But it is not clear how much intensity(强度)or speed matter when counting the health benefits of every step, the researchers write. They add that 10,000 steps per day might not be the right goal for everyone.

    For the study, researchers observed 17,000 women, all in their early 70s. They asked the women to wear accelerometers for at least four days. Accelerometers are small devices that measure the number of steps and the intensity of movement. The researchers followed up with the women much later, around 4. 3 years later, on average. Since the beginning of the study, 504 women had died. Compared to women who took no more than 2, 718 steps daily, the women who took at least 4,363 steps per day were 41 percent less likely to die.

    "Even a modest amount of steps is associated with lower death rates," said I-Min Lee, the lead writer of a report on the study. "The rate of stepping did not matter in these older women: it was the number of steps that mattered.

    The study had a few limitations. For example, the researchers only measured women's movements once, at the start of the study period. It is possible that the women's behaviors changed over time. Still, the results are "good news for older adults who may have difficulty walking at faster paces, "said Keith Diaz, a researcher at Columbia University. He was not involved in the study.

    "Any walking is better than nothing," Diaz said by email. "With even small amounts of walking, your risk of death will be sharply reduced "For those who have difficulty walking, other research shows that any form of aerobic activity provides health benefits," he added. "Swimming, bicycling or any form of activity that is continuous in nature will provide health benefits.