A qualified doctor who rarely practicedbut instead devoted his life to writing．He once said: “Medicine is my lawfulwife, and literature is my lover．” Russian writer Anton PavlovichChekhov, was a great playwright and one of the masters of the modern shortstory．

When Chekhov entered the MoscowUniversity Medical School in 1879, he started to publish hundreds of comicshort stories to support his family．After he graduated, he wrote regularlyfor a local daily newspaper．

As a writer he was extremely fast, oftenproducing a short story in an hour or less．Chekhov's medical and science experiencecan be seen through the indifference (冷漠) many of his characters show to tragicevents．In1892, he became a full time writer and published some of his most memorablestories．

Chekhov often wrote about the sufferingsof life in small town Russia．Tragic events control his characters whoare filled with feelings of hopelessness and despair．

It is often said that nothing happens inChekhov's stories and plays．He made up for this with his excitingtechnique for developing drama within his characters．Chekhov'swork combined the calm attitude of a scientist and doctor with the sensitivity(敏感) of anartist．

Some of Chekhov's works were translatedinto Chinese as early as the 1940s．One of his famous stories, The Man in aShell, about a school teacher's extraordinarily orderly life, was selected as atext for Chinese senior students．

    The following notice is posted in the bus station.

    Time Table:

    Buses leave the Railway Station, New York City, from 7:00 am and every half-hour there after, until 11:30 pm (7 days a week)

    Buses leave Brennan Station 20 minutes before and after every hour from 6:20 am to 11:40 pm (7 days a week)

    Evening rush hours (5:00 pm to 7:00 pm): Buses leave the Railway Station, New York City every minutes. (Monday- Friday)

    Holidays Buses leave every hour on the hour, each direction. (Trip time: 30 minutes each way)

    All tickets must be bought at Window 12, the Railway Station, New York City, or at the Brennan Station Window BEFORE boarding buses.

    While famous foreign architects are invited to lead the designs of landmark buildings in China such as the new CCTV tower and the National Center for the Performing Arts, many excellent Chinese architects are making great efforts to take the center stage.

    Their efforts have been proven fruitful. Wang Shu, a 49-year-old Chinese architect, won the 2012 Pritzker Architecture Prize — which is often referred to as the Nobel Prize in architecture — on February 28. He is the first Chinese citizen to win this award.

    Wang serves as head of the Architecture Department at the China Academy of Art (CAA). His office is located at the Xiangshan campus(校园) of the university in Hangzhou, Zhejiang Province. Many buildings on the campus are his original creations.

    The style of the campus is quite different from that of most Chinese universities. Many visitors were amazed by the complex architectural space and abundant building types. The curves(曲线) of the buildings perfectly match the rise and fall of hills, forming a unique view.

    Wang collected more than 7 million abandoned bricks of different ages. He asked the workers to use traditional techniques to make the bricks into walls, roofs and corridors. This creation attracted a lot of attention thanks to its mixture of modern and traditional Chinese elements(元素).

    Wang's works show a deep understanding of modern architecture and a good knowledge of traditions. Through such a balance, he had created a new type of Chinese architecture, said Tadao Ando, the winner of the 1995 Pritzker Prize.

    Wang believes traditions should not be sealed in glass boxes at museums. "That is only evidence that traditions once existed," he said.

    "Many Chinese people have a misunderstanding of traditions. They think tradition means old things from the past. In fact, tradition also refers to the things that have been developing and that are still being created," he said.

    "Today, many Chinese people are learning Western styles and theories rather than focusing on Chinese traditions. Many people tend to talk about traditions without knowing what they really are," said Wang.

    The study of traditions should be combined with practice. Otherwise, the recreation of traditions would be artificial and empty, he said.

Teen Volunteers

    The zoo supports future conservation by having the youth involved in voluntary jobs. We have popular summer year-round programs that are designed to be fun and educational while building job readiness skills and inspiring youth to appreciate, care for, and conserve nature.

    ◆Zoo Crew

    Volunteer on a team to restore wildlife habitat at Lake Merced and Mountain Lake in San Francisco.

    Ages11-14

    Program runs: September through June

    Hours: One Saturday per month, form 10 a. m. to 12 p. m.

    The Zoo Crew will hold a necessary training for all prospective volunteers in August at the Zoo.

    ◆Nature Trail

    Nature Trailers work in close proximity (接近) to the Zoo's ambassador animal collection, and teach guests about adaptations and conservation. Nature Trailers will learn to handle a few small mammals and reptiles.

    Ages 12-14 (must be 12 by Memorial Day)

    Program runs: Memorial Day to Labor Day

    Hours: 2 days per week, 10 a. m. to 4: 45 p. m.

    ◆Talk on the Wild Side

    Learn to handle amazing animals like livestock and arthropods (节肢动物) while giving informational talks to zoo visitors. Use biofact carts to educate the public.

    Ages 14-17

    Program runs: Memorial Day to Labor Day

    Hours: 2 days per week, 9: 30 a. m. to 4: 30 p. m.

    ◆Zoo Teacher Assistant

    Help kids explore the world of animals through zoo tours, crafts, games and assist Zoo Camp teachers with activities. Gain practical work experience with children.

    Ages14-17

    Program runs: mid-June through mid-August

    Hours: A daily half-day or full-day shift for a minimum of four weeks over the course of the summer.

By the end of the century, if not sooner, the world's oceans will be bluer and greener thanks to a warming climate, according to a new study. 

At the heart of the phenomenon lie tiny marine microorganisms(海洋微生物) called phytoplankton. Because of the way light reflects off the organisms, these phytoplankton create colourful patterns at the ocean surface. Ocean colour varies from green to blue, depending on the type and concentration of phytoplankton. Climate change will fuel the growth of phytoplankton in some areas, while reducing it in other spots, leading to changes in the ocean's appearance. 

Phytoplankton live at the ocean surface, where they pull carbon dioxide into the ocean while giving off oxygen. When these organisms die, they bury carbon in the deep ocean, an important process that helps to regulate the global climate. But phytoplankton are vulnerable to the ocean's warming trend. Warming changes key characteristics of the ocean and can affect phytoplankton growth, since they need not only sunlight and carbon dioxide to grow, but also nutrients. 

Stephanie Dutkiewicz, a scientist in MIT's Centre for Global Change Science, built a climate model that projects changes to the oceans throughout the century. In a world that warms up by 3℃, it found that multiple changes to the colour of the oceans would occur. The model projects that currently blue areas with little phytoplankton could become even bluer. But in some waters, such as those of the Arctic, a warming will make conditions riper for phytoplankton, and these areas will turn greener. "Not only are the quantities of phytoplankton in the ocean changing, " she said, "but the type of phytoplankton is changing. "

A new study estimates more than 1 billion people worldwide are currently living with obesity. People with obesity are considered medically overweight. The study, published in the medical publication The Lancet, said that one in eight people are obese. Researchers said around 43 percent of adults were overweight in 2022. Obesity among adults has more than doubled since 1990. Among young people aged 5 to 19, the obesity rate increased by four times during the same period.

"A staggering number of people are living with obesity, and severe obesity is strongly linked to a long list of health problems and an early death." declared the lead writer of the study, Majid Ezzati, a professor at Imperial College London.

The WHO noted that at the World Health Assembly in 2022, member states agreed to an agency plan to fight obesity. So far, 31 governments "are now leading the way" to reduce obesity by carrying out goals of the plan.

These include government measures to enact new rules on "harmful" marketing of unhealthy food and drinks to children. In addition, governments are aiming to improve school and nutrition policies. They are also seeking price reductions for healthy foods, to increase public awareness about healthy diets and exercise and to strengthen requirements for physical activity in schools.

Imperial College's Ezzati said that obesity rates are not rising in many wealthier nations. But they are quickly increasing in other countries. He noted that some countries have many underweight people, meaning the nations are facing what he called a "double burden" of nutrition problems.

Branca is head of nutrition at the WHO. He told reporters, "In the past, we have been thinking of obesity as a problem of the rich, but obesity is a problem of the world. Although new obesity drugs — such as Ozempic and Wegovy — could be helpful tools in reducing obesity, they noted that the cost and availability of the drugs might increase inequality."