B

    According to a new study ,a smiley face emoji（笑脸符）in work-related e-mails may not create a positive impression and could even weaken information sharing. In formal business emails, a smiley is not a smile.

    In one of the experiments, people were asked to read a work-related e-mail from an unknown person and then tell about both the ability and warmth of that person. Before that, they all received similar messages. But some included smileys while others did not. The results suggested that contrary to face-to-face smiles, which increase both ability and warmth, the smileys in a business e-mail had no effect on the perception（感知）of warmth, and in fact had a bad effect on the perception of ability. The perceptions of low ability in turn weakened information sharing.

    In another experiment, the use of a smiley was compared to a smiling or neutral photograph. The findings showed that in the case（情况）of a photograph, a smiling sender was judged to be more able and friendly than a neutral one. However, when an e-mail on formal work-related maters included a smiley, the sender was thought to be less able. The smiley did not influence the opinion on the sender's friendliness.

    “People are easy to accept that a smiley equals a real smile, but the findings of this study show that in the workplace, this seems not the case, especially when first communications are concerned.” Dr. Glikson says. “In such a situation, it is better not to use smileys to people at whatever age. Smileys could hardly be a wise choice to a person you are not familiar with.”

    Antaretica's ice-white environment is going green and facing other unexpected threats. Scientists say that as temperatures go up in the polar region, invading (入侵) plants and insects, including the flies, cause a major conservation threat.

    More and more of these invaders, in the form of larvae (幼虫) or seeds, are surviving in coastal areas around the South Pole, where the temperature has risen by more than 3℃ over the past three decades. Glaciers have retreated, exposing more land which has been occupied by mosses that have been found to be growing more quickly and thickly than ever before-providing potential green homes for invaders.

    “The common house flies are a perfect example of the problem the Antarctic now faces from invading species,” said Dominic Hodgson of the British Antarctic Survey. “It comes in on ships, where it exists in kitchens and then at bases on the continent. It now has an increasing chance of surviving in the Antarctic as it warms up, and that is a worry. Insects like the house flies carry bacteria that could have a deadly effect on native lifeforms.”

    The Antarctic has several native species of insects. Together with its native mosses, these are now coming under increased threat from three major sources: visiting scientists, increasing numbers of tourists and global warming. However, it is global warming that is the main driver of the greening of Antarctica.

    In 2015, more than 38,000 tourists visited Antarctica. “These tourists are often very careful about not leaving waste or having mud. But they could carry seeds or larvae on their boots when they set foot on the Antarctic,” said Hodgson.

    More and more invasive insects and plants have been found on the Antarctic and have required removal. “the insects and plants that are native to Antarctica have survived these for thousands of years,” said Hodgson. “We have got to act now if we want to save the environment.”

    Throughout history, music spread among people of different cultures. In today's technological advanced society, however, people spread music online, sometimes without an artist's permission. This can lead to many problems, and music companies are now cracking down on this practice. Sharing music online without permission is theft (盗窃).

    Sharing music online prevents recording companies from making money from their efforts. They say that sharing music online has resulted in a huge drop in profits and sales over the past 10 years. People who find music for free online are not paying for CDs or every MP3 downloaded. To truly understand the influence of music piracy (盗版) on creators, one must understand how many people are involved in the recording process. For the sale of each album, profits must be shared between musicians, sound engineers, music producers, managers, advertisers, and the company selling the product. Many people believe sharing music only affects the recording artist, but the reality is that sharing hurts business for all companies involved.

    There are many people who don't see the harm in sharing music online and even think they have the right to do it. One online blogger states that he originally paid for an entire CD and that he should be able to do with the material whatever he wants. While he may have legally paid for the music, he does not have the right to provide permission, which means people like the blogger are thieves.

    Although we don't spread today's music the same way we did before, there's no doubt that people around the world love to share music. However, internet piracy would prevent musicians from continuing producing albums for fear of theft. Therefore, if people want to continue listening to their favorite artists, they need to buy their music so that artists will make enough profit to continue their music careers.

THE 2024 OXFORD POETRY PRIZE

Oxford Poetry hosts the annual Oxford Poetry Prize, awarded for a single poem in the English language. The 2024 Prize opens on I May 2024. The guest judge is Rachel Long. The winner of the Oxford Poetry Prize receives £1,000, the runner-up £200, and third place £100. All cash prizes will be paid out in full no later than 90 days after the public announcement of the judge's decision. The winning poets are also offered publication in Oxford Poetry.

About the 2024 guest judge

Rachel Long's debut collection, My Darling from the Lions(Picador, 2020/Tin House, 2021), was shortlisted for the Forward Prize for Best First Collection, The Costa Book Award, The Rathbones Folio Prize, and The Sunday Times Young Writer of the Year Award. The US edition featured in the New York Times Book Review and was named one of the 100 must-read books of 2021 by TIME.

Submission guidelines

*Each poem must consist of no more than 50 lines. Blank lines, titles, subtitles, and dedications (献词) are not counted as lines.

*The Competition is open to writers living anywhere in the world.

*Poems submitted to the Oxford Poetry Prize must not have been previously published elsewhere, whether in print or online(including but not limited to blogs, websites, and social media).

Terms and conditions.

*The competition is open to anyone age 18 or over on the date of their submission. Submission of a poem to the Oxford Poetry Prize constitutes the entrant's (参赛者的) acceptance of these terms and conditions. Entries that do not obey these terms and conditions will be disqualified from the competition.

*Entries are welcome from 1 May 2024. The deadline for submitting entries is midnight UTC (国际协调时间) on 31 August 2024. Works received after that date will not be considered.

When it comes to commemorating a child's first year of life, the traditional approach often involves presenting an exquisitely adorned confectionery masterpiece to the young celebrant. By simply setting this visually striking sugar creation before the infant and activating the recording devices, one can capture the ensuing delightfully chaotic scene, replete with smiles and smears of frosting.

However, this will not be the method I choose to honor my daughter's initial 12 months of existence—not because the sweet treat will be absent, but because my spouse and I have resolved to abstain from sharing her images on social platforms for an entire year, and we are determined to maintain this practice for the foreseeable future.

I understand that I am part of a select few. Research indicates that approximately seventy-five percent of parents habitually upload photographs of their offspring to the internet. Pixsy, a platform that assists photographers in identifying unauthorized usage of their work, discovered that parents in the age bracket of 20 to 25 are twice as likely as their older counterparts to disseminate images of their little ones on social media platforms.

Yet, I am not the only one who feels this way. A woman instrumental in the creation of Big Little Feelings—an Instagram account with 2.8 million followers that provides guidance to new mothers—recently decided to remove all the pictures she had previously posted of her children.

The discourse surrounding "sharenthood," or the inclination of parents to broadcast their children's lives online, has been fervently ongoing for some time. The everyday choices made by parents have a significant, yet often undervalued, impact on the digital legacy of young individuals and their subsequent life trajectory.

Technological advancements have introduced fresh challenges for parents. The latest development in artificial intelligence is the emergence of image-generating tools. By inputting a series of descriptive terms into a text field, AI can generate a visual representation of the described subject. The datasets for these AI-driven generative systems are frequently sourced from the open internet.

While it is improbable that my daughter's Instagram photos would be processed through such an AI assembly line, resulting in her likeness appearing in someone's creative AI-generated artwork, once images are disseminated on the web, they can be exceedingly difficult to eradicate completely.

I do share photographs with friends and family via secure, private messaging applications. However, these closed networks are fundamentally distinct from public postings on the open internet.

Some people often wonder whether they are fighting a battle with their genes to maintain a healthy weight. In fact, researchers have provided plenty of evidence that people are born with tendencies to be lighter or heavier. For example, studies of identical twins have revealed great similarity in their overall weight. Part of this similarity may be explained by the finding that some people are born to burn a lot of calories just through ordinary day-to-day activities while others are not. Those who are not are more at risk for weight gain.

Researchers have discovered some of the actual genetic mechanisms (机制) that may make some individuals more likely to be obese. For example, a gene has been found that appears to control signals to the brain that enough fat has been stored in the body in the course of a meal—so the individual should stop eating. The gene influences the production of leptin (瘦蛋白), which keeps appetite under control. If leptin doesn't work well, it is likely that individuals will continue to eat. Thus the gene that controls leptin appears to have a critical influence on the potential for obesity.

The confirmation that leptin plays a role in weight control has encouraged researchers to identify and understand other weight-related genes. Recent attention has focused on a gene called GAD2. GAD2 helps control the amount of the neurotransmitter (神经递质) GABA. In general, when more GABA is available, appetite is increased. For that reason, people who have a form of GAD2 that allows more GABA to be available may be at risk for overeating. You can see that GAD2 is not directly an obesity gene. Rather it has an indirect influence on obesity through its direct influence on GABA.

Genetic research holds out the promise of innovative solutions to obesity. Researchers hope that an understanding of the link between genus and weight control will enable them to provide new drug treatments. Nonetheless, even the most optimistic researchers provide a warning: "Innovative drugs will be effective only when they are used along with lifestyle changes."