Few laws are so effective that you can see results just days after they take effect. But in the nine days since the federal cigarette tax more than doubled-to $1.01 per pack-smokers have jammed telephone "quit lines" across the country seeking to kick the habit.

    This is not a surprise to public health advocates. They've studied the effect of state tax increases for years, finding that smokers, especially teens, are price sensitive. Nor is it a shock to the industry, which fiercely fights every tax increase.

    The only wonder is that so many states insist on closing their ears to the message. Tobacco taxes improve public health, they raise money and most particularly, they deter people from taking up the habit as teens, which is when nearly all smokers are addicted. Yet the rate of taxation varies widely.

    In Manhattan, for instance, which has the highest tax in the nation, a pack of Marlboro Light Kings cost $10.06 at one drugstore Wednesday. In Charleston, S.C., where the 7-cent-a-pack tax is the lowest in the nation, the price was $4.78.

    The influence is obvious.

    In New York, high school smoking hit a new low in the latest surveys-13.8%, far below the national average. By comparison, 26% of high school students smoke in Kentucky. Other low-tax states have similarly depressing teen-smoking records.

    Hal Rogers, Representative from Kentucky, like those who are against high tobacco taxes, argues that the burden of the tax falls on low-income Americans "who choose to smoke".

    That's true. But there is more reason in keeping future generations of low-income workers from getting hooked in the first place. As for today's adults, if the new tax drives them to quit, they will have more to spend on their families, cut their risk of cancer and heart disease and feel better.

    I was very fortunate to be selected by Kindspring to receive $100 for the monthly kindness competition and it has helped to make a beautiful difference in people's lives.

    The idea is simple. I took a lot of fallen branches and hung them from the ceiling with the help of volunteers and friends. Then we hung strings with pins attached to them from the branches. I got a whole lot of art supplies and as people came in for the art exhibit, they were encouraged to create a piece of art or a positive message to hang from the tree.

    The tree changed into this really fun way of exchanging positive messages. If you were to hang a message up, you had to take a message down for you to keep. The experience was really amazing. People of all ages and from all walks of life were sharing art and encouragement through the tree.

    With the $100 I received from Kindspring, I made a total of seven more trees. I am putting them all over our community（社区）. One will go to a youth shelter for homeless teens and one will be put right in the middle of town on our public square. They will have paper and art supplies at the base for people to use in creating a message or piece of art. For the classroom I was able to provide them with new colored pencils, markers, and some sketchbooks, which they all loved. The act is to create communications that are positive and can influence people's lives in great ways just by doing a simple act of kindness. The messages people receive can be kept with them forever as a reminder of the good in the world, or they can pass them along to others. The beauty of the idea is that the messages have unlimited possibilities.

    No trip to Chicago is complete without a visit to the Art Institute, which is the second largest art museum in the nation.

    Opening hours:

    Mon - Wed & Fri - Sun, 10:30 am - 5 pm; Thu, 10:30 am- 8 pm; closed on New Year's Day, Thanksgiving, and Christmas Day.

    Highlights:

    The Modern Wing contains contemporary masterpieces by Dali, Matisse, Miro, Picasso, Pollock, and Warhol.

    In the Central Hall visitors can view one of the world's finest Impressionist collections, including masterpieces by Monet, Degas, Renoir, Seurat, Gauguin, and Van Gogh.

    Thorne Miniature Rooms offer a detailed view of European homes from the 16th century through the 1930s and American homes from the 17th century to 1940.

    The past returns as over 550 works from 4,000 years of art come together in Of Gods and Glamour, located in the beautiful new Mary and Michael Jaharis Galleries of Greek, Roman, and Byzantine Art.

    Advice for visitors:

    Free guided tours are available daily at noon.

    Free art-making activities are available for children each weekend from 11 am to 2 pm.

    Visit the Family Room in the Ryan Education Center, open daily from 10:30 am – 5 pm, and introduce your child to the museum's collections with a variety of hands-on activities. Assemble (组装) puzzles based on masterpieces you'll see in the galleries, build architectural wonders with colorful blocks, and learn about art through stories and games at Curious Corner.

    Check out the Lion's Trial tour for children ages 5-10. This tour is especially designed for the young people in your group! Don't miss it!

Getting there:

    You can take the follow buses: 1, 3, 4, 6, 7, 14, 26, 28, 126, 143.

    Making employees feel happy and healthy at work is good for many businesses. But it isn't always an easy thing. A research suggests that just 33% of the U. S. employees consider themselves fully engaged (投身于) at work, while 16% are actively disengaged, and 51% are just showing up.

    But there is an exception. When it comes to employee engagement, it seems that employees in small companies are doing better. According to the same research, the largest U.S. companies have the lowest levels of engagement, while companies with fewer than 25 employees have the highest. And in one recent report, 75 percent of small business workers surveyed said they were "very" or "extremely" satisfied with their role as a small company employee.

    Unlike big companies, small companies are often short of resources but the employees can get more surprises there. Small companies offer excellent career opportunities to their employees. The bosses often know their staff very well and understand their personal needs. Employees of small companies are more likely to receive free meals, paid leave, and they can even bring their pets to work.

    But of course, there're many other draws in small businesses. One of the top draws is flexible scheduling (弹性工时). Another is being able to really see the fruits of one's labor. Besides, non­cash award is also a big draw. This could be something small that reflects employees' interests and lifestyles.

    While a parental leave might lead to some financial problems, small companies may do something to improve it. "It may be impossible for a five­person team to be reduced to four for six months," writes Camilla Velasquez, head of HR management platform Justworks. "But it could be possible to allow new parents to take on reduced hours in a work­from­home environment." This kind of method has been realized in some small companies.

    The UK has a well­respected higher education system and some of the top universities and research instructions in the world. But to those who are new to it all, sometimes it can be confusing.

    October is usually the busiest month in the college calendar. Universities have something called Freshers' Week for their newcomers. It's a great opportunity to make new friends, join lots of clubs and settle into university life.

    However, having just left the comfort of home and all your friends behind，the prospect(前景) of meeting lots of strangers in big halls can be nerve­wracking (令人焦虑不安的). Where do you start? Who should you make friends with? Which clubs should you join?

    Luckily, there will be thousands of others in the same boat as you worrying about starting their university social life on the right foot. So just take it all in slowly. Don't rush into anything that you'll regret for the next three years.

    Here is some top advice from past students on how to survive Freshers' Week:

    Learn rules. Make sure you know British social etiquette(礼节). Have a few wine glasses and snacks handy for your housemates and friends.

    Be kind. Sometimes cups of tea or even slices of toast can give you a head start in making friends.

    Be sociable. The more active you are，the more likely you'll be to meet new people than if you're someone who never leaves his room.

    Bring a doorstop. Keep your door open when you're in and that sends positive messages to your neighbors that you're friendly.

    So with a bit of clever planning and effort, Freshers' Week can give you a great start to your university life and soon you'll be passing on your experience to next year's new recruits.

A new study reveals that pigeons (鸽子) can tackle some problems just like artificial intelligence, enabling them to solve difficult tasks that might challenge humans. Previous research has theorized that pigeons employ a problem-solving strategy, involving a trial-and- error approach, which is similar to the approach used in AI models but differs from humans' reliance on selective attention and rule use. To examine it, Brandon Turner, a psychology professor at the Ohio State University, and his colleagues conducted the new study. 

In the study, the pigeons were presented with various visual images, including lines of different widths and angles, and different types of rings. The pigeons had to peck (啄) a button on the right or left to indicate the category to which the image belonged. If they got it correct, they received food; if they were wrong, they received nothing. Results showed that, through trial and error, the pigeons improved their accuracy in categorization tasks, increasing their correct choices from about 55% to 95%. 

Researchers believed pigeons used associative learning, which is linking two phenomena with each other. For example, it is easy to understand the link. between "water" and "wet". "Associative learning is frequently assumed to be far too primitive to. explain complex visual categorization like what we saw the pigeons do," Turner said. But that's exactly what the researchers found. 

The researchers' AI model tackled the same tasks using just the two simple mechanisms that pigeons were assumed to use: associative learning and error correction. And, like the pigeons, the AI model learned to make the right predictions to significantly increase the number of correct answers. For humans, the challenge when given tasks like those given to pigeons is that they would try to come up with rules that could make the task easier. But in this case, there were no rules, which upsets humans. 

What's interesting, though, is that pigeons use this method of learning that is very similar to AI designed by humans, Turner said. "We celebrate how smart we are that we designed artificial intelligence: at the same time, we regard pigeons as not clever animals," he said.