A new study has discovered that meditation（冥想）and oxygen sport together reduce depression. The Rutgers University study found that this mind and body combination, done twice a week for only two months, reduced the symptoms for a group of students by 40 percent.

    “We are excited by the findings because we saw such a meaningful improvement in both clinically depressed and non-depressed students,” said lead author Dr. Brandon Alderman. “It is the first time that both of these two behavioral ways have been looked at together for dealing with depression.”

    Researchers believe the two activities have an interactive effect in combating depression. Alderman and Dr. Tracey Shors discovered that a combination of mental and physical training (MAP) enabled students with major depressive disorder not to let problems or negative thoughts defeat them.

    Rutgers researchers say those who participated in the study began with 30 minutes of focused attention meditation followed by 30 minutes of oxygen sport. They were told that if their thoughts drifted to the past or the future they should refocus on their breathing, enabling those with depression to accept moment-to-moment changes in attention.

    Shors, who studies the production of new brain cells in the hippocampus—part of the brain involved in memory and learning—says scientists have shown in animal models that oxygen sport exercise keeps a large number of certain cells alive.

    The idea for the human intervention（干预）came from her laboratory studies, she says, with the main goal of helping individuals acquire new skills so that they can learn to recover from stressful life events.

    By learning to focus their attention and exercise, people who are fighting depression can acquire new learning skills that can help them process information and reduce the overwhelming recollection of memories from the past, Shors says.

    “We know these treatments can be practiced over a lifetime and that they will be effective in improving mental health.” said Alderman. “The good news is that this intervention can be practiced by anyone at any time and at no cost.”

    Augusto Esquivel is a sculptor who, in his own words, is “crazy with comparisons of reality and potential and the balance between them.” Perhaps the best example of what he's talking about are his most famous creations: the suspended(悬挂的) button sculptures.

    Made entirely from buttons hanging on various lengths of string, Esquivel's sculptures are made to look like common objects: a piano, a gumball machine, and even a toilet. If it wasn't for the clear string hanging above, these objects, these sculptures, would look solid, yet you can put your hands right through them. The process starts with him deciding on a subject and setting the acrylic （丙烯酸树脂）from where the buttons are being suspended. He buys buttons of different shapes and sizes, paints them with spray paint, and carefully hangs them. After that, it's a manner of hanging each individual button, which takes a lot of time. For his piano, for example, he individually hung over 60 pounds worth of tiny buttons.

    Esquivel's sculptures, while mostly housed inside art galleries, perfectly capture one of the main principles of street art: something that is eye-catching and something that invites interaction. Often the best sculptures outside the art galleries aren't the ones behind guards and fencing, but the ones people can go right up to and touch. In Vancouver, a series of laughing old men are attracting people for pictures and to just generally hang around, but the people who simply walk by and see the sculptures almost always leave with a smile on their face. That's good street art: it draws the viewer in rather than relying on a gallery to draw in an audience and point them to certain pieces.

    Esquivel's art is not only a presentation of talent, something that mentions larger philosophical questions, like the ones he stated above, but also just the right combination of interesting idea and painstaking work. One can look at his work in a critical way, or simply appreciate his idea and execution(艺术品的制作).

    When I lived in Spain, some Spanish friends of mine decided to visit England by car. Before they left, they asked me for advice about how to find accommodation. I suggested that they should stay at 'bed and breakfast' houses, because this kind of accommodation gives a foreign visitor a good chance to speak English with the family. My friends listened to my advice, but they came back with some funny stories.

"We didn't stay at bed and breakfast houses," they said, "because we found that most families were away on holiday."

I thought this was strange. Finally I understood what had happened. My friends spoke little English, and they thought 'VACANCIES' meant 'holidays', because the Spanish word for 'holidays" is 'vacancies'. So they did not go to house where the sign outside said 'VACANCIES', which in English means there are free rooms. Then my friends went to house where the sign said 'NO VACANCLES', because they thought this meant the people who owned the house were not away on holiday. But they found that these houses were all full. As a result, they stayed at hotels!

    We laughed about this and about mistakes my friends made in reading other signs. In Spanish, the word 'DIVERSION' means fun. In English, it means that workmen are repairing the road, and that you must take a different road. When my friends saw the word 'DIVERSION' on a road sign, they thought they were going to have fun. Instead, the road ended in a large hole.

English people have problems too when they learn foreign languages. Once in Paris, when someone offered me some more coffee, I said "Thank you" in French. I meant that I would like some more. However, to my surprise the coffee pot was taken away! Later I found out that "Thank you" in French means "No, thank you."

    Wellington: Huawei has started a rugby-themed media campaign in a bid to win over New Zealand's public after the country's security agency blocked the Chinese technology giant's equipment from being used in a nationwide Internet network.

    "5G without Huawei is like rugby without New Zealand," ads in New Zealand's two largest newspapers read alongside a photo of players competing in a ball. Large posters also appeal to the country's love of the sport. In November, New Zealand's Government Communications Security Department (GCSD) told Spark it couldn't use equipment from Huawei-the world's largest telecommunication equipment company—in the building of its 5G network because an unspecific "significant network security risk was identified". Spark is now in the process of seeing if it can make changes to prevent those risks, although GCSD has declined to publicly say how that would happen.

    Huawei's newspaper ad goes on to argue the decision would mean less advanced technology and higher prices for New Zealand customers. The ads come after the company last month publicly offered to only use New Zealand, rather than Chinese, staff to build the network—in a bid to ease fears—and called for an urgent meeting with the government, denying (否认) there had been any wrongdoing.

    Western spy agencies have increasingly raised security concerns about Huawei—China's largest telecommunications company-over what they say are possible links to the Chinese government, with the United States reportedly pressing Five Eyes intelligence network allies (同盟国) to avoid the company. Australia and Canada were the first countries to ban Huawei from a building of 5G networks.

The company has repeatedly denied accusations.

    New Zealand's top politicians have repeatedly denied the GCSD decision was influenced by other Western powers and say it's about the particular technology being suggested, not China. They have also denied suggestions New Zealand's diplomatic ties with China have been tense over the decision, with the official promotion of a major China—New Zealand tourism project now postponed.

    The Metropolitan Museum of Art

    1000 Fifth Avenue, New York, NY 10028

    211-535-7710 www.metmuseum.org

    Entrances

    Fifth Avenue at 82nd Street

    Hours

    Open 7 days a week.

    Sunday-Thursday 10:00-17:30

    Friday and Saturday 10:00-21:00

    Closed Thanksgiving Day, December 25, January 1，and the first Monday in May. Admission

    $ 25. 00 recommended for adults, $ 12. 00 recommended for students, includes the Main Building and the Cloisters（回廊）on the same day; free for children under 12 with an adult.

    Free with Admission

    All special exhibitions, as well as films, lectures, guided tours, concerts, gallery talks, and family/children's programs are free with admission.

    Ask about today's activities at the Great Hall Information Desk.

    The Cloisters Museum and Gardens

    The Cloisters Museum and Gardens is a branch of the Metropolitan Museum of Art devoted to the art and architecture of Europe in the Middle Ages. The extensive collection consists of masterworks in sculpture, colored glass, and precious objects from Europe dating from about the 9th to the 15th century.

    Hours

    Open 7 days a week.

    March-October 10:00-17:15

    November-February 10:00-16:45

    Closed Thanksgiving Day, December 25, and January 1.

The periodic table of elements is a common sight in classrooms，campus hallways and libraries. The mode periodic table arranges the elements by their atomic numbers and periodic properties（周期性）. Several scientists worked over a century to assemble the elements into this format. 

In 1789，French chemist Antoine Lavoisiertried grouping the elements as metals and nonmetals. Forty years later，German physicist Johann Wolfgang Dobereiner observed similarities in physical and chemical properties of certain elements. He arranged them in groups of three in increasing order of atomic weight and called them triads，observing that some properties of the middle element，such as atomic weight and density，approximated the average value of these properties in the other two in each triad. 

A breakthrough came with the pu blication of a revised list of elements and their atomic masses at the first international conference of chemistry in Karlsruhe，Germany，in 1860. They concluded hydrogen would be assigned the atomic weight of 1 and that the atomic weight of other elements would be decided by comparison with hydrogen. For example，carbon，being 12 times heavier than hydrogen，would have an atomic weight of 12. 

In 1869，Russian chemist Dmitri Mendeleev created the framework that became the moder periodic table，leaving gaps for elements that were yet to be discovered. Mendeleev predicted the properties of some undiscovered elements and gave them names such as"eka-aluminum"for an element with properties similar to aluminum. Later "eka-aluminum"was discovered as gallium. 

German chemist Lothar Meyer produced a version of the periodic table similar to Mendeleev's in 1870. He left gaps for undiscovered elements but never predicted their properties. The Royal Society of London awarded the Davy Medal in 1882 to both Mendeleev and Meyer. The later discovery of elements predicted by Mendeleev verified（证实）his predictions and his periodic table won universal recognition. In 1955 the 101st element was named mendelevium in his honor. 

On UNESCO website，it wrote，"The Periodic Table of Chemical Elements is more than just a guide or catalogue of the entire known atoms in the universe；it is essentially a window on the universe，helping to expand our understanding of the world around us. "