2 . 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.

3 . 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.

4 . Dallas-based Knit Wits is made up of a group of grandmothers with a strong love for knitting (编织) who tum their love for crafting into a purposeful attempt. Meeting regularly, they pour their collective love into every stitch (针法) they make. The group has been working for over ten years, meeting every Friday, to support organizations that help others, locally and around the world. Over the years, they’ve crafted thousands of items insupport of the important things.

Recently the Knit Wits member Mary Ann Stover was inspired to have the group knit hats for infant (婴儿) patients with heart disease at Children’s Health Hospital. The hats, each a unique work of art, designed with holiday themes, reflect the skill of the Knit Wits. More importantly, the special of Knit Wits is its understanding of the emotional effect these small objects can have on the infants experiencing medical treatments.

Bealle, a certified child life specialist at Children’s Health Hospital, explained how the hats are making a difference to the tiny patients and their families. “Caregivers are able to wear the hats on their body to move their smells before placing the hats back on the infants, encouraging connecting and making the infants less stressful,” he said.

Throughout the infants’ admission, many holidays are celebrated. At times, some infants are seriously ill and unable to dress up for holiday photos the families have planned. Thanks to the donations from Knit Wits, the hospital team is able to prove the family with a suitable themed infant hat the family can use for their photos and holiday celebrations.

6 . As an immigrant from China, my mother loves Chinese culture deeply. She _________ Chinese food every night. She prefers to do it herself at home because she thinks the local restaurants aren’t authentic. _________, strangely enough, she likes to take my son to Panda Express to have _________ with her friends who are also from China. She is even _________ to point it out whenever they are at a food court.

Why is American Chinese food not _________ among some Chinese Americans? How is American Chinese food not better than _________ Chinese food? I can’t _________ that it’s not as good as authentic Chinese food. In fact, authentic Chinese food really tastes better while American Chinese food _________ to have food with its own taste — they are right for different persons. It’s important to _________ American Chinese food from authentic Chinese food. They are not the same __________ and have their own characteristics. So they should be treated __________. That’s why my mother thinks that Panda Express is not very authentic, but can still __________ it. Actually, American Chinese food is often created by Chinese immigrants according to their own preferences. As people from various countries have differences in their __________, it is changing.

My mother has a deep feeling for authentic Chinese food and restaurants, so I decide to open a restaurant where she and other immigrants can feel the __________ of Chinese family dinner. My son says he’ll learn Chinese cooking skills from me, which, I think, should be __________ from age to age. Likewise, I’ll also pass on the Chinese food culture to the world.

7 . London Theatre Shows

Each ticket to the show includes free entry to Kew Gardens., Alice in Wonderland is playing at the Kew Gardens from 22 July to 28 August 2023.

Running time: 1 hour 10 minutes with no interval (幕间休息)

Performance days

Matinees (日场): Wednesday, Thursday, Friday, Saturday, Sunday

Important information: Children under 2 years old go free.

It is based on the iconic Back ta the Future films. Back to the Future: The Musical tickets at the Adelphi Theatre, London are available to book for performances up to 11 February 2024.

Age restrictions: Suitable for general audience aged 6+. Children under 3 will not be admitted.

Running time: 2 hours 40 minutes (including interval)

Performance days

Evenings; Monday, Wednesday. Thursday. Friday, Saturday, Sunday

Matinees: Thursday, Saturday, Sunday.

This show sees Blippi in the ultimate curiosity adventure. Dance, sing, and learn with Blippi as he discovers what makes different cities unique and special. Blippi: The Wonderful World Tour runs at Rose Theatre, Kingston from 29 August to 9 September 2023.

Age restrictions: Recommended for ages 2+.

Running time: 1 hour (no interval)

Performance days

Matinees: Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday

Join our brave explorers across unchartered territories to discover a pre-historic world of remarkably life-like dinosaurs. Dinosaur World Live runs from 11 August to 3 September 2023 at Regent’s Park Open Air Theatre, London.

Age restrictions: 3+

Running time: 50 mins + a 15-minute post show

Performance days

Matinees: Monday, Tuesday, Wednesday, Friday, Saturday, Sunday

8 . Science fiction has long entertained the idea of artificial intelligence becoming conscious (有意识的). Many researchers say that AI systems aren’t yet at the point of consciousness, but the pace of AI evolution (发展) has got them considering: how would we know if they were?

To answer this, a group of 19 neuroscientists (神经系统科学家), philosophers and computer scientists have come up with a checklist of standards that, if met, would indicate whether a system has a high chance of being conscious. The authors made the effort because “it seemed like there was a real lack of detailed, thoughtful discussion of AI consciousness,” says co-author Robert Long, a philosopher at the Center for AI Safety.

The team says that a failure to identify whether an AI system has become conscious has important moral implications. If something has been labelled “conscious”, according to co-author Megan Peters, a neuroscientist at the University of California, “that changes a lot about how we as human beings feel that entity (独立存在的个体) should be treated”. Long adds that, as far as he can tell, not enough effort has been made by the companies building advanced AI systems to evaluate the models for consciousness and make plans for what to do if that happens.

One of the challenges in studying consciousness in AI is defining what it means to be conscious. Peters says that for the report, the researchers focused on “phenomenal consciousness”.

Many neuroscience-based theories describe the biological basis of consciousness. But there is no agreement on which is the right one. To create their framework, the authors therefore used a range of these theories. The idea is that if an AI system functions in a way that matches aspects of many of these theories, then there is a greater likelihood that it is conscious.

They argue that this is a better approach to assessing consciousness than simply putting a system through a behavioural test — say, asking ChatGPT whether it is conscious, or challenging it and seeing how it responds. That’s because AI systems have become remarkably good at mimicking (模仿) humans.

9 . Traveling is a great way to experience new cultures and landscapes, learn about different ways of life, and simply have an adventure. It can also help you open your mind to new ideas and perspectives.     1     They provide insight, tips, and inspiration for people looking to explore the world around them. From detailed guides to personal stories, these books offer readers a way to experience the world without ever leaving their homes.

One book that perfectly captures (描述) the spirit of travel is The Distance Between Us by Reyna Grande.     2     Through her moving writing style, Grande paints a vivid picture of the struggles and joys of crossing a physical and cultural border.

Her book has a great impact on readers.     3     By sharing her own experiences, Grande offers hope and inspiration to anyone looking to take the leap and explore the world around them.

One of the greatest benefits of traveling to places inspired by books for students is the opportunity to explore and learn about many different cultures. Immersing (使沉浸) yourself in unfamiliar surroundings can help open your eyes to different ways of life.     4    

Being able to communicate effectively with those from different backgrounds is essential for any student, especially in today’s international society.     5     It can further improve conversation and fluency (流畅).

Lastly, by traveling to places inspired by books, students will gain a deeper understanding of the works that inspired them to take the journey in the first place.

10 . More than 170,000 people in California are unhoused. Even as the state has poured resources into fighting against the problem, the number of people without homes has ticked upward in recent years. On the surface, the state has one key advantage for people without a reliable roof over their heads: relatively consistent and livable weather. So one of my first thoughts when I heard news of a horricane attacking Los Angeles was just “What will happen to the city’s homeless population?”

City agencies quickly took action. As it became clear that the Los Angeles region could experience an extreme downpour and subsequent flooding, outreach teams fanned out across the river bank and dam areas across the city that have become home to a significant unhoused population, offering support to move them into shelters and motels (汽车旅馆).

Despite that, it’s obvious that the effects of climate change will hit the most vulnerable (脆弱的) hardest. We see this globally as extreme weather events hit countries that have contributed the least to the problem.

The most notable connection between climate change and the US housing crisis is the threat extreme weather poses to unhoused people. More unhoused people are affected as climate change drives increasingly unpredictable weather. People without homes know how to respond to expected seasonal events. But events like a near-hurricane in Los Angeles or a wildfire in ‘Maui can catch populations with limited access to information off guard.

Another link worth considering is the way in which climate change creates more homelessness and further stresses on housing systems. Hurricane Katrina, for example, displaced 800, 000 people. Four years later, 12,000 people remained without shelter.

Housing has been — and will continue to be — a key issue in Maui too as it recovers from the wildfire that killed more than 100 people. Maui has already had a housing crisis, the result of a high cost of living driven in large part by the tourism industry. And, now, many more are left looking for places to stay. Ashley Kelly, the chief operating officer at Hawaii’s Family Life Center, said: “Finding housing for any new clients is just not possible right now.”