Four people in England back in 1953, stared at Photo 51,It wasn't much—a picture showing a black X. But three of these people won the Nobel Prize for figuring out what the photo really showed –the shape of DNA The discovery brought fame and fortune to scientists James Watson, Francis Crick, and Maurice Wilkins. The fourth, the one who actually made the picture, was left out.

    Her name was Rosalind Franklin.” She should have been up there,” says historian（历史学家） Mary Bowden.” If her photos hadn't been there, the others couldn't have come up with the structure.” One reason Franklin was missing was that she had died of cancer four years before the Nobel decision. But now scholars（学者）doubt that Franklin was not only robbed of her life by disease but robbed of credit by her competitors

    At Cambridge University in the 1950s, Watson and Click tried to make models by cutting up shapes of DNA's parts and then putting them together. In the meantime, at King's College in London, Franklin and Wilkins shone X-rays at the molecule(分子). The rays produced patterns reflection the shape.

    But Wilkins and Franklin's relationship was a lot rockier than the celebrated teamwork of Watson and Crick, Wilkins thought Franklin was hired to be his assistant .But the college actually employed her to take over the DNA project.

    What she did was produce X-ray pictures that told Watson and Crick that one of their early models was inside out. And she was not shy about saying so. That angered Watson, who attacked her in return, “Mere inspection suggested that she would not easily bend. Clearly she had to to go or be put in her place.”

    As Franklin's competitors, Wilkins, Watson  and Crick had much to gain by cutting her out of the little group of researchers, says historian Pnina Abir-Am. In 1962 at the Nobel Prize awarding ceremony, Wilkins thanked 13 colleagues by name before he mentioned Franklin, Watson wrote his book laughing at her. Crick wrote in 1974 that  “Franklin was only two steps away  from the solution.”

    No, Franklin was the solution. “She contributed more than any other player to solving the structure of DNA . She must be considered a co-discoverer,” Abir-Am says. This was backed up by Aaron Klug, who worked with Franklin and later won a Nobel Prize himself. Once described as the “Dark Lady of DNA”, Franklin is finally coming into the light.

    Awarding wining film Ballad From Tibet(《天籁梦想》) by Chinese director Zhang Wei is scheduled to premiere in New York City on Saturday, March 10.

    The film, which tells the story of four visually impaired kids from China's Tibet autonomous region embarking on a journey for their dreams, will be presented at the Bronx Library Center on Saturday, at Mid-Manhattan Library on Sunday, at Lehman College and Marlene Meyerson JCC Manhattan on Tuesday, and at the Museum of Modern Art on Wednesday.

    Based on a true story, Ballad from Tibet is about the four 1ibetan kids—Thupten, Sonam, Kelsang and Droma—achieving their dreams against all odds.

    Thupten is a 10-year-old boy partially sighted in one eye and blind in the other. His doctor says that there is a chance he could completely lose his sight, but there is an operation that could offer a 50 percent chance of saving his vision.

    His teacher firmly suggests that he should have the operation right away, but Thupten is afraid and wants to see the world before his life is plunged into total darkness.

    Along with his three friends who also suffer from blindness, Thupten embarks on an exciting adventure. Together they decide to go to Shenzhen in South China's Guangdong province, a city more than 37,000 km away from Tibetan regional capital Lhasa.

    The reason for the children's decision to go to Shenzhen is their love of music. They are all talented and want to sing their hearts out in front of national audience by participating in a Shenzhen-based reality show.

    The foursome's trip is indeed fun, but also turns out to be dangerous as well. Luckily, help is on hand along the way in the form of a wandering family, a shepherd, a motorcycle club, and a TV producer's assistant.

    Ballad From Tibet has won the award for Best Children's Feature at the 13th China International Children's Film Festival in November 2017, and earned nominations at 17 different international children's film festivals in Germany, Canada, Japan, Greece, Australia and India.

    American high school students are terrible writers, and one education reform group thinks it has an answer: robots. Or, more accurately, robot-readers—computers programmed to scan students' essays and spit out a grade.

    Mark Shermis, professor of the College of Education at the University of Akron, is helping to hold a contest, set up by the William and Flora Hewlett Foundation (WFHF), which promises $ 100,000 in prize money to programmers who write the best automated grading software. "If you're a high school teacher and you give a writing task, you're walking home with 150 essays," Shermis said. "You're going to need some help."

    Automated essay grading was first proposed in the 1960s, but computers back then were not up to the task. In the late 1990s, as technology improved, several textbooks and testing companies jumped into the field. Today, computers are used to grade essays on South Dakota's student writing assessments and a handful of other exams, including the TOEFL test of English fluency, taken by foreign students.

    The Hewlett contest aims to show that computers can grade as well as English teachers—only much more quickly and without all that depressing red ink. "Automated essay scoring is objective," Shermis said. "And it can be done immediately. If students finish an essay at 10 pm, they will get a result at 10: 01 pm."

    Take, for instance, the Intelligent Essay Assessor, a web-based tool marketed by Pearson Education, Inc. Within seconds, it can analyze an essay for spelling, grammar, organization, and help students to make revisions. The program scans for key words and analyzes semantic (语义的) patterns, and Pearson claims that it can understand the meaning of text much the same as a human reader.

    Here are some events in the following months. Have a look and pick out your favorite.

    AVCS Informational Tour

    Aliso Viejo Christian School, a highly rated private school, which serves children in grades, invites potential families to its annual AVCS informational tour. Come and see its facility, meet its staff, check out its curriculum and amazing programs. The tour would love to share the school with you and answer any questions.

    Location: AVCS Campus

    German Immigrants Exhibition

    German immigrants played a huge role in shaping Indianapolis through the 19th century. They brought educational reform, political activity and greenhouse farming. In addition to produce, these immigrants also kept their communities full of flowers and trees, know about this part of history in October.

    Location: Indiana Historical Society

    Whale Watching

    Gray whales migrate (迁徙) annually along the west coast of North America. They can be seen from the Orange County coast from December through early April. Summer and fall bring the giant blue whales. They can be seen from June through September. Since the gray whales migrate just a few miles off the coast, simple sail from Newport Beach enables you to see these spectacular creatures in their natural habitat.

    Location: Newport Beach

    Sunday Brunch(早午餐)

    Sunday brunch is a wonderful way to enjoy your weekend. At View Restaurant, Sunday brunch is always accompanied by champagne, spectacular views and unique atmosphere. The menu includes traditional breakfast foods and lunch favorites like barbeque and fresh fish selections. You can also choose to view sporting events in the restaurant. With enough variety to satisfy every appetite from kids to adults, this is one Sunday brunch you'll keep coming back to!

    Location: View Restaurant

I spent two weeks in Kenya as a volunteer in a natural reserve. Our 1 was aimed at protecting wildlife. And we also did other 2 work, helping the local people to improve their living conditions.

I 3 the woods with slow heavy steps, picked up a few traps left by 4 hunters and helped monitor the population of giraffes, which was at risk to illegal hunting. We also 5 sporting equipment to local schools, where you could see their textbooks and classrooms were in 6 condition. We made changes, but sometimes they seemed useless. There are so many problems that need to be 7 such as environmental damage, illegal hunting, and lack of 8 to education. What can one group of volunteers accomplish? These are problems that maybe need to 9 many years to address.

So why choose to be a volunteer? After all, it is unpaid and often very hard work. Even though it is easy to get 10 , most of the time what we are in search of is life's meaning—to spend our 11 well and for a good cause.

These are moments I will 12 for a long time—the salty air, dozens of zebras eating grass, the sunset over the hills. And also the smiles, the waves of local children, the13 sound of laughter among strangers have been 14 impressed in my mind. These are the moments that remind me of how proud I am to have been a volunteer. These are the 15 that will stay with me forever and remind me of a time, a place and a certain destination.

A bot is a software program that often works by itself on the internet to perform the same kinds of actions as humans do. The report, produced by California-based internet security company Imperva, found that 49.6 percent of worldwide internet traffic ( 互联网流量） came from bots in 2023, while from human users fell to 50.4 percent. Imperva's study also found that web traffic linked to "bad bots" grew to 32 percent in 2023, a rise of 30.2 percent from 2022. Nanhi Singh, a security advisor at Imperva, said that bots are currently one of growing threats facing almost every industry.

Bots are generally designed to visit websites and independently search for many kinds of online information. They are able to operate at much greater speeds than humans and can process repeated searches and process large amounts of data. Online search advisor Yoast notes that some bots are considered good because they can be useful to individuals through tools such as OpenAI's chatbot, ChatGPT. Some others are considered malicious, because they are trained to hack, or break into network computer systems. These kinds of bots pretend themselves as humans and collect private data or financial information that can be used to commit crimes. And some bots are even designed to spread misinformation and false news.

The study also suggested that some countries have a much bigger problem with bad bots than others. Web traffic linked to bad bots in 2023 accounted for 71 percent in Ireland while Germany was next, with 67.5 percent. The percentage of Mexico and the USA was reported to be 42.8 percent and 35.4 percent respectively. Imperva even reported that bad bot activity would lead to account takeovers, which increased 10 percent in 2023 over 2022. The highest number of account takeovers – 36.8 percent–happened in the financial services industry. Next was the travel industry, with 11.5 percent, followed by business services at eight percent.

Nanhi Singh said the problem is likely to worsen in coming years to the point where such bots would exist everywhere. She urged organizations to introduce bot management and security tools in an effort to limit automated traffic and prevent dangerous account takeovers.