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      The meaning of silence varies among cultural groups. Silences may be thoughtful, or they may be empty when a person has nothing to say. A silence in a conversation may also show stubbornness, or worry. Silence may be viewed by some cultural groups as extremely uncomfortable; therefore attempts may be made to fill every gap(间隙)with conversation. Persons in other cultural groups value silence and view it as necessary for understanding a person's needs.

        Many Native Americans value silence and feel it is a basic part of communicating among people, just as some traditional Chinese and Thai persons do. Therefore, when a person from one of these cultures is speaking and suddenly stops, what maybe implied(暗示) is that the person wants the listener to consider what has been said before continuing. In these cultures, silence is a call for reflection.

        Other cultures may use silence in other ways, particularly when dealing with conflicts among people or in relationships of people with different amounts of power. For example, Russian, French, and Spanish persons may use silence to show agreement between parties about the topic under discussion. However, Mexicans may use silence when instructions are given by a person in authority rather than be rude to that person by arguing with him or her. In still another use, persons in Asian cultures may view silence as a sign of respect, particularly to an elder or a person in authority.

Nurses and other care-givers need to be aware of the possible meanings of silence when they come across the personal anxiety their patients may be experiencing. Nurses should recognize their own personal and cultural construction of silence so that a patient's silence is not interrupted too early or allowed to go on unnecessarily. A nurse who understands the healing(治愈) value of silence can use this understanding to assist in the care of patients from their own and from other cultures.

    Can eating a chocolate bar every day really prevent age-related memory loss? No. But a new research shows that large amounts of flavones, substances found in cocoa, tea and some kinds of vegetables, may improve age-related memory failure.

    Dr. Scott Small is a professor of neurology (神经病学) at Columbia University in new York City. He is the lead writer of a research paper describing the effects of cocoa flavones on brain activity. His study involved 37 volunteers aged between 50 and 69. Researchers gave them a high-level flavones drink made from cocoa beans or a low-level flavones drink. For a period of three months, some subjects got 900 milligrams of flavones a day. The others got 10 milligrams of flavones each day. Brain imaging and memory tests were given to each study subject before and after the study. Dr. Small says that the subjects who had the high-level flavones drink showed much improvement on memory tests.

    The researchers warn that more work is needed to be done because this study was performed only on a small group. Dr. Joann Manson is the lead researcher of a four-year study involving 18,000 adults. This study will use flavones capsules(胶囊). The study subjects will be divided into two groups and will take two pills per day. The capsules used will all look the same. But one group's capsules will contain flavones, while the other group will take capsules made of an inactive substance, or placebo

    Dr. Manson says it's not necessary for people to start eating more chocolate, because a person would have to eat a huge amount of chocolate to get the same level of flavones given to the rest subjects. He adds many manufacturers have planned to remove the flavones from their chocolate products. Similarly, Dr. Manson says a cocoa-based flavones extract(提取)may be developed in the future But he says that more studies are needed to see how much flavones is good for our health.

    Many parents have learned the hard way that what sounds like open communication is often the very thing that closes a youngster's ears and month. One common mistake is The Lecture, the long monologue that often starts with “When I was your age….” Eighteen-year-old Kelly calls lectures “long, one-side discussions in which I don't say much.”

    Kids reflexively（条件反射地） shut down in the face of a lecture. Their eyes glaze over(呆滞), and they don't register any incoming information. Listen to 13-year-old Sarah describe her least favorite times with her mom and dad. “First, they scream. Then comes the ‘We're so disappointed' speech. Then the ‘I never did that to my parents' lecture begins. After that, even if they realize how ridiculous they sound, they never take it back.”

    Lines like “When you have children of your own, you'll understand” have been seriously said by parents since time immemorial. But many of our expert parents, like Bobby, a registered nurse and mother of three, feel that by falling back on clichés（陈词滥调） to justify our actions, we weaken our position.

    Since kids are creatures of the here and now, the far-off future has no relevance to them. Therefore, good communicators like Bobby suggest, “Give specific reasons for your actions in present language: ‘I'm not letting you go to the party because I don't think there will be enough adult supervisions（监护）.'”

    Betty, who lives in Missiouri, uses an indirect approach. “I find that warnings are accepted more readily if I discuss a news article on a subject I am concerned about. My husband and I talk about it while our children absorb the information. Then they never think I'm preaching.”

    This really helped when Betty's kids began driving. Instead of constantly repeating “Don't drink; don't speed,” she would talk about articles in the paper and express sympathy for the victims of a car crash. Betty made no special effort to draw her kids into the conversation. She depended on a teen-ager's strong desire to put in his opinions-especially if he thinks he isn't being asked for them.

    Get ready to fill your days full of fun and adventure. West Dorset, an area of outstanding natural beauty, is always a place to go and there is always something going on. The following are some of the star attractions.

    Mapperton House & Gardens

    Impressive valley gardens surrounded by wooded landscape.

    Gardens open: Daily 11 am -5 pm except Fridays, March to October included.

    Booking through Tel: (0103)959203 or www.mapperton.com

    Bridport Museum

    Local history museum attracts every history lovers. We also have a year-round Local History Centre nearby where you can complete local and family history research.

    Open: Monday-Saturday, April to October included.

    Booking through Tel: (0103) 959711 or www.bridportmuseum.com

    Furlelgh Estate Wine Tours

    Vineyard and winery, producers of the UK's most outstanding wine. Come and see how the 2019 Winemaker of the Year makes wine.

    Open for sales: 11 am-4 pm Fridays and Saturdays, tours at 2 pm.

    Booking through Tel: (0103) 906323 or wwwjurleiehestate.uk

    Old Crown Court and Cells

    Experience two hundred years of shocking crime and punishment. Tours of court room and cells on selected afternoons mid July to end August.

    Open: Tuesday-Sunday, March to September included.

    Booking through www.visitdorset.com

    For all the latest information about attractions including opening times, reasonable prices and special offers，please go to www.visitdorset.com

    As a Fulbright（富布莱特法案基金）scholar at Yale, I wanted very much to get some individual help from some famous professors, but their office-hours were only once a week and there were always students waiting outside. At first, I was too polite to get their help. Then I realized that Chinese politeness does not work in this society. I needed to be aggressive to get what I wanted. I also noticed that Chinese students or Asian students were very polite in class while American students often interrupted the professor, asking questions and dominating the discussion. The Chinese students were not as aggressive as American students.

    I was impressed by the role of the professor in the class. The professor didn't act as an authority, giving final conclusions, but as a researcher looking for answers to questions together with the students. One linguistic feature of his interacting with his students was that he used many modal verbs-far more than I did in Beiwai. When answering questions, he usually said: "this is my personal opinion and it could be wrong. It would be a good idea if you could read the book I mentioned the other day." Or," You may find the book I recommended helpful." Or, "You could be right, but you might find this point of view also interesting." When making comments on students' performances, the professor usually said:" It might have been much clearer if you had taken in some of the ideas we discussed earlier this semester."

    In China, authorities are always supposed to give wise decisions and correct directions. Therefore students always expect the professor to give an answer to the question. I still remember how annoyed they were when foreign teachers did not provide such an answer. Their expectations from authorities are much higher than those of American students. Once the Chinese students got the answer, they were sure about it. That is why they make far more certain statement than American students. That is why Chinese students find it difficult to use modal verbs because the function of modal verbs is to provide room for negotiation and different ideas.

Growing evidence shows that dancing can boost brain health and help manage neurocognitive (神经认知的) disorders. So what is it about dance that's different from other regular exercises? 

Helena Blumen, a cognitive (认知的) scientist at Albert Einstein College of Medicine, says the complex (复杂的) mental multitasking that dance requires involves various parts of the brain at the same time. Basically, dancing requires more brain power than simpler repetitive (重复的) exercises. 

While scientists are still learning how the mechanisms of dancing work in the brain, a clearer picture is beginning to appear. Researchers at Otto von Guericke University in Magdeburg, Germany, did MRI scans of older adults who had participated in one of two programs over a six -month period. One group practiced dance and the other did a traditional exercise program with cycling and strength training. While both groups improved their level of physical fitness, the dancers grew more white and gray matter in the parts of the brain responsible for cognitive processes. Both white and gray matter typically decline as we get older, making communication in the brain slow. 

Imagine your brain is a city with loads of roads. The researchers assume the changes brought by dancing contribute to brain plasticity, which is like the city's ability to build new roads, repair old ones or even change the direction of traffic based on how often the routes are used and what the city needs. 

In addition to the physical and neurological (神经学的) benefits, dance can also help people accept what their bodies can and can't do. Dawnia Baynes, 44, developed multiple sclerosis (MS) after her body lose all feeling from the chest down. She recently joined an online dance program for people with MS. Not only has it improved her range of motion, it has also helped her overcome her fear of being judged for how she moves. 

"To see other people moving is like I'm moving," she says, "and knowing that I don't have to be professional and super technical in my dancing makes me comfortable with where I am right now."