While dog keepers realize their dogs can read their moods accurately, scientists have always been a little doubtful. Now thanks to some researchers at the University of Veterinary Medicine in Vienna, Austria, we finally have some convincing evidence.

    For their study, biologist Corson Miller and his team exposed eleven selected dogs to digital images of women that were either angry or happy. Half the dogs were rewarded for touching the screen when shown a happy face, while the other half got their treat for selecting those that appeared angry.

    Interestingly, the dogs were not provided with the entire face. Some dogs were shown only upper halves while the others observed lower halves. That's because the scientists believe humans show their emotions on their entire face.

    After some training like how to recognize small differences like the wrinkles between the eyes or the changes in their shape that accompany the happy or angry expressions, the dogs were mostly able to identify the correct expression not only on a familiar face but on a strange face. The researchers concluded the dogs were smart enough to read human emotions.

    They also found those being trained to read angry expressions took a longer time to learn. They guess it may be because dogs find angry faces disgusting, causing them to withdraw quickly. However, once the smart dogs realized they were getting rewarded, the trepidation seemed to disappear. In fact, the dogs had such a good time playing the computer "game" that scientists had a hard time keeping them away from the touch screens after the study was completed.

    The researchers also noticed only dogs with a male owner had a harder time understanding the expressions correctly. Since the touchscreen models were all females, this confirmed what has been observed in previous studies—dogs are more efficient at reading facial expressions of people that are the same gender as their owner.

    Bookie's, the campus bookstore is located at the Campus Activity Centre, main floor.

    Bookie's is the only place in Kamloops to buy your course textbooks. There is a booklist in the bookstore listing the books required for each course. If you need help in finding your course textbooks, ask any of the staff in the bookstore.

    There are more than just textbooks at bookie's. They carry a wide variety of stationary, art supplies and gift items. You can also buy telephone cards, postage stamps and bus passes. You must show your student card to get a discount for the bus passes.

TEXTBOOK RETURNS

1) Do I need my receipt to return books?

Yes.

2) How long do I have to return books?

Books purchased must be returned within ten working days of the date of the purchase.

3) What if I wrote my name in the book?

Unfortunately, we can not give you a full refund for books not in mint condition as publishers will not accept this for credit.

4) What happens if I miss the last day for return?

We may purchase the text book as “used” in accordance with our Buyback program.

5) Ｗhat if I discover that my book has missing pages half way through the semester?

We will replace the defective books, new or used, for a like copy of that title. Cash refunds are not given for defective books returned outside the normal return dates.

BUYBACKS

1) What books do you buy back?

We buy back all current edition textbooks. If we do not use them at UCC, we buy them back according to the value established in the North American marketplace.

2) How much do I get for my books?

If bookie's is buying the book for use at UCC, you will receive 50% of the current new retail price. In order to receive optimum buyback price, discs and supplements must accompany the book.

3) What happens to the books that I sell?

Books for bookie's are processed by our staff and sold to students at 75% of the new retail price.

4) What condition do my books need to be in?

Books should be in good condition, meaning that the cover is still attached and all pages intact. Notes and markings on the pages of the books are perfectly fine. Workbooks and study guides are generally not purchased back unless they are free of all markings. No sales receipt is required for these books.

BOOKSTORE HOURS

Monday–Thursday      9:00am–6:00pm

Friday                9:00am–5:00pm

Saturday and Sunday    Closed

    Whether in the home or the workplace, social robots are going to become a lot more common in the next few years. Social robots are about to bring technology to the everyday world in a more humanized way, said Cynthia Breazeal, chief scientist at the robot company Jibo.

    While household robots today do the normal housework, social robots will be much more like companions than mere tools. For example, these robots will be able to distinguish when someone is happy or sad. This allows them to respond more appropriately to the user.

    The Jibo robot, arranged to ship later this year, is designed to be a personalized assistant. You can talk to the robot, ask it questions, and make requests for it to perform different tasks. The robot doesn't just deliver general answers to questions; it responds based on what it learns about each individual in the household. It can do things such as reminding an elderly family member to take medicine or taking family photos.

    Social robots are not just finding their way into the home. They have potential applications in everything from education to health care and are already finding their way into some of these spaces.

    Fellow Robots is one company bringing social robots to the market. The company's “Oshbot” robot is built to assist customers in a store, which can help the customers find items and help guide them to the product's location in the store. It can also speak different languages and make recommendations for different items based on what the customer is shopping for.

    The more interaction the robot has with humans, the more it learns. But Oshbot, like other social robots, is not intended to replace workers, but to work alongside other employees. “We have technologies to train social robots to do things not for us, but with us,” said Breazeal.

    In many businesses, computers have largely replaced paperwork, because they are fast, and do not make mistakes. And they are honest. Many banks say that their business is “untouched by human hands” and therefore safe. But they have no thought that the growing number of computer crimes (犯罪) show they can be used to steal.

    Computer criminals (罪犯) don't use guns. And even if they are caught, it is hard to punish them because there is often no proof. A computer cannot remember who used it. It simply does what it is told. The head teller(出纳主管) at a New York City bank used a computer to steal more than one and a half billion dollars in just four years. No one noticed this because he moved the money from one account (账户) to another. Each time a customer whose money he had stolen questioned the balance in his account, the teller said it was a computer mistake, then replaced the missing money from someone else's account. This man was caught at last.

    Some workers use the computer's power to punish their bosses they consider unfair. Recently, a large company fired its computer record assistant for reasons that were connected with her personal life rather than her job. She was given thirty days notice. In those thirty days, she stole all the company's computerized records.

    Most computer criminals have been common workers. Now police wonder if this is “the tip of iceberg”. As one official says, “I have the feeling that there is more crime out there than we are catching. What we are seeing now is all so poorly done. I wonder what the real experts are doing—the ones who really know a computer works.”

    There aren't many actors around the world who have enough self confidence to turn down an offer from Steven Spielberg. Maybe that was why Juliette Binoche gave him a choice. She said she'd be happy to be in Jurassic Park as long as she could play a dinosaur. Of course he turned her down and it was probably a good thing. It's difficult to imagine Juliette ripping people apart with her teeth. However, her decision doesn't seem to have done her career any harm. She has gone on to make a string of hits, including The Unbearable Lightness of Being, The English Patient (for which she won an Oscar) and Chocolat.

    Success in the United States has not been so easy for other foreign stars. Gerald Depardieu is a good example. Since his first film in 1967, his filmography (影片集锦) lists 172 acting credits. But he has struggled on the other side of the pond. While some of his films have been popular in the US, they have usually been French films that travelled. One possible exception was Green Card, directed by Peter Weir, where he plays a French immigrant who goes through a fake wedding in order to stay and work in the United States. This is a predictable but sweet romantic comedy which typecasts (分配同一类型角色) its lead actors in terms of national stereotypes. While some reviewers were kind, others shredded both the film and Depardieu's performance.

    While Monsieur Depardieu hasn't received the recognition he would have liked in the United States, one Mexican actor has achieved almost instant success. Gael Garcia Bernal first gained recognition in Amores Perros in 2000 and a year later in Y tu mama tambien. Since then he has appeared with hometown hero, Brad Pitt in Babel and, under the direction of top producer and director, Jim Jarmusch, he starred in Limits of Control. He hasn't picked up an Oscar yet, but he was nominated for a BAFTA (英国电影电视艺术学院奖) in 2005 for his performance as the South American hero revolutionary Che Guevara, in Motorcycle Diaries. In the same year he played American music icon Elvis Presley in The King.

    How does an ecosystem（生态系统）work? What makes the populations of different species the way they are? Why are there so many flies and so few wolves? To find an answer, scientists have built mathematical models of food webs, noting who eats whom and how much each one eats.

    With such models, scientists have found out some key principles operating in food webs. Most food webs, for instance, consist of many weak links rather than a few strong ones. When a predator（掠食动物）always eats huge numbers of a single prey（猎物）, the two species are strongly linked; when a predator lives on various species, they are weakly linked. Food webs may be dominated by many weak links because that arrangement is more stable over the long term. If a predator can eat several species, it can survive the extinction（灭绝）of one of them. And if a predator can move on to another species that is easier to find when a prey species becomes rare, the switch allows the original prey to recover. The weak links may thus keep species from driving one another to extinction.

Mathematical models have also revealed that food webs may be unstable, where small changes of top predators can lead to big effects throughout entire ecosystems. In the 1960s, scientists proposed that predators at the top of a food web had a surprising amount of control over the size of populations of other species—including species they did not directly attack.

    And unplanned human activities have proved the idea of top-down control by top predators to be true. In the ocean, we fished for top predators such as cod on an industrial scale, while on land, we killed off large predators such as wolves. These actions have greatly affected the ecological balance.

    Scientists have built an early-warning system based on mathematical models. Ideally, the system would tell us when to adapt human activities that are pushing an ecosystem toward a breakdown or would even allow us to pull an ecosystem back from the borderline. Prevention is key, scientists says because once ecosystems pass their tipping point（临界点）, it is remarkably difficult for them to return.