1 . Students who are better able to understand and manage their emotions effectively, a skill known as emotional intelligence (EI), do better at school than their less-skilled classmates, according to research published by the American Psychological Association.

“It’s not enough to be smart and hardworking. Students must also be able to understand and manage their emotions to succeed at school,” said Carolyn MacCann, lead author of the study. MacCann and her colleagues analyzed data from more than 160 studies, representing more than 42,000 students from 27 countries, published between 1998 and 2019. The students ranged in age from primary school to college. The researchers found that students with higher EI tended to get higher grades and better achievement test scores than those with lower EI scores. This finding held true even when controlling for intelligence and personality factors. What was most surprising to the researchers was the association held despite different ages.

As for why EI can affect academic performance, MacCann believes a number of factors may come into play. “Students with higher EI may be better able to manage negative emotions, such as anxiety, boredom and disappointment, which can negatively affect academic performance,” she said. “Also, these students may be better able to manage the social world around them, forming better relationships with teachers, classmates and family, all of which are important to academic success.” Finally, the skills required for EI, such as understanding human motivation and emotion, may overlap with (与……重叠) the skills required to master certain subjects, such as history and language, giving students an advantage in those subject areas, according to MacCann.

However, MacCann cautions against widespread testing of students to identify and target those with low EI as it may stigmatize (给……打上烙印) those students. Instead, she recommends interventions that involve the whole school, including additional teacher training and a focus on teacher well-being and emotional skills. “Programs that integrate emotional skill development into the existing curriculum would be beneficial, as research suggests that training works better when run by teachers rather than external specialists,” she said. “Increasing skills for everyone — not just those with low EI—would benefit everyone.”

3 . Soap (肥皂) might seem like a reasonable way to avoid mosquito bites (蚊子叮) on the basis that if mosquitoes can’t smell you, they can’t bite you. However, a recent study has found that rather than protecting you, certain soaps might actually make you more attractive to mosquitoes.

In the study, conducted at Virginia Polytechnic Institute and State University, four volunteers were asked to wear a sleeve before and after washing with four different brands of soap. The researchers then watched female mosquitoes as only females feed on blood landing on the fabric sample to show their preference. They found that some people washing with some brands of soap, increased their attractiveness to mosquitoes, while washing with other brands of soap tended to repel (驱除) mosquitoes. The repellent effect of some soap may be due to its coconut scent, as coconut oil is known to act as a natural mosquito repellent. The reason behind this attraction is believed to be related to mosquitoes’ sugar intake. When mosquitoes are not feeding on blood, they add their diet with plant juice or sweet water from flowers, “The fact we are taking those flowery and fruity smells and putting them on our bodies means that now the same object smells like a flower and a person at the same time,” said Clément Vinauger, who led the study. It would be like waking up and smelling the smell of coffee and bread, very attractive.

Interestingly, the effects of the soap varied among people, possibly due to the interaction (相互作用) between the soap and each person’s unique body scent. “It’s remarkable that the same person that is extremely attractive to mosquitoes when he is unwashed, but he becomes even more attractive to mosquitoes with one soap, and then become repellent to mosquitoes with another soap,” said Vinauger. Further research is needed to better understand the interaction between different soap and body scents, as well as to develop more effective mosquito repellents.

5 . The design theory behind a pair of tiny robots may one day find its way into environmental monitoring, as well as search and-rescue tasks. Modeled after a water strider (水黾), an insect, the two robots each weigh in at 8 and 55 milligrams, and may mark the smallest, lightest, and fastest fully functional micro-robots in the world, according to Washington State University (WSU).

Developed by a team of WSU researchers, the robots’ tininess largely relies on a material known as a shape memory alloy (合金). Although shape memory alloys change form when heated, they can “remember” their original shapes and return to them after cooling. Because of this, the two micro-robots do not require standard motors, and they use light and small ones instead of bulky moving parts.

Both the robots’ motors are each made up of two shape memory alloys, allowing them to move their fins as fast as 40 times a second while also lifting over 150 times their weight. “They’re very technologically sound. The development of the very lightweight robots opens up new possibilities in micro-robotics,” said Conor Trygstad, a material engineering PhD student and study lead author. “Although the robots are impressive when compared to other robots, the pair still fall behind their biological relatives’,” Trygstad said. They can currently move at a speed of about six millimeters a second; a water strider, by comparison, speeds along at about a meter per second. For now, the robots also require wired (连线的) power sources, thus seriously preventing any real-world applications for the moment.

Going forward, however, the team plans to copy other small insect species while also creating a new water strider robot which can move at a higher speed. Depending on using small batteries could also greatly increase the robots’ areas of use, If the breakthrough designs continue improving, similar micro-robots could one day be employed to monitor hard-to-reachor dangerous environments.

8 . It’s never easy to say “no”, especially when we’re asked by someone close to us, Maybe a friend is asking you for a favor, or a co-worker is asking you to cover their shift for the afternoon     1    . Don’t worry, We’ve put together some tips to help you politely refuse a request without feeling guilty or hurting anyone’s feelings in the process.

Be kind but forthright. Though you can always just say “no” on your own terms, you might find more success by padding your refusal with positivity.     2    . There’s no need to hide the real reason why you’re saying “no”, as long as you can express it in a polite manner. People will appreciate it if you tell them kindly and quickly why you can’t accommodate them.

    3    . It’s important to set boundaries (界限) with co workers and close friends alike. People shouldn’t expect they can take advantage of you or you’ll drop everything for them at the last minute. Aim for relationships in which both of you feel glad to say “yes” when you can but are also understanding when one of you can’t.

Offer a brief explanation. Providing a concise explanation as to why you’re refusing a request is one polite way to say “no”. For instance, if you already have other work this week that would prevent you from hitting a pew deadline, let the person know that. You’d better avoid adding too much fluff (无价值的东西) to your explanation.     4     .

Know yourself. Knowing yourself and your needs will help you decide if you should say“no”. Have a brainstorming session about areas where you have too much on your plate.     5    . You need to be able to take care of yourself before you can show up for others.