【推荐2】The clock always seems to be ticking rather too fast in the doctor’s office and the queue of patients outside the door seems to be pressing rather too hard. Some say it’s high time for the model of short, sharp one-to-one appointments to give way to shared medical appointments (SMAs).

SMAs are doctor-patient visits in which a group of patients receive patient education and counseling (咨询), physical examination and medical support in a group setting. Typically, SMAs are designed to have one or more doctors attend to a group of patients who share a common illness or medical condition. In contrast to one-to-one visits, SMAs provide a longer appointment time-frame as well as the opportunity for patients to have improved access to their physicians and meanwhile pick up additional information and support from peers.

However, doctors who have pioneered the shared appointment approach report that there are significant challenges involved. Dr. Sumego, director of shared medical appointments, Cleveland Clinic, identifies culture change as the most significant challenge. Physicians and nurses are trained in a model of personal service and privacy; the SMA approach is a fundamental challenge to those fixed ideas. They need shared goals and a way of testing the innovation against agreed standards. Dr. Sumego says, “The physicians may be worried about the possible chaos and efficiencies that are marketed. They also have to make the patients understand what their appointment is, and what the expectation is.”

“So, if an organization was looking to start shared medical appointments, I would advise them to start the buy-in from a few champion physicians, develop the work-flow and develop some experience. Provide some support behind what that best practice should look like. Create some standards so that, as the concept spreads, you can employ that experience to start the next shared medical appointments and the next.”

【推荐3】Growing up in a small village in Ghana, Osei Boateng watched many of his family members and neighbors struggle to access basic health care. In many regions of the country, it can take hours to get to the nearest hospital. “My grandmother was a very big part of my life,” said Boateng. “It was very hard when we lost her, and it was due to something that could have been easily prevented. That is the painful part of it.”

Feeling an urgent call to help, Boateng decided he would make it his life’s mission to bring health care to remote communities in Ghana. He started his nonprofit, OKB Hope Foundation, and in 2021, he converted a van into a mobile doctor’s office called the Hope Health Van and started bringing health care directly to those in need. A few times a week, the mobile clinic and medical team travel long distances to remote communities in Ghana and provide routine medical care for free. On each trip, Boateng’s team consists of a nurse, a physician’s assistant, a doctor, and an operation assistant. In the van, they can run basic labs like bloodwork and urinalysis as well as prescribe and provide medications.

Since its launch, Boateng says the Hope Health Van has served more than 4,000Ghanaians across more than 45 rural communities who otherwise don’t have easily accessible medical care.

Boateng has big plans for the future. He hopes to expand to provide more consistent and high-quality medical care not only to those living in remote areas of Ghana but in other countries as well. He has gone all in on his OKB Hope Foundation, recently quitting his job to dedicate his time to bringing health care to his home country. But for him, the sacrifices are well worth the reward.

【推荐2】Cars could soon be communicating with each other using 5G to make drivers aware of upcoming dangers, scientists claim. The ultra-fast mobile Internet would allow for rapid information transmission and could make drivers aware of black ice, pot holes or other dangers up ahead.

Several car manufacturers are already integrating 5G into their vehicles, including as a tool to welcome the coming of self-driving vehicles. Experts believe the high-speed connection will also improve the reliability and capability of automated vehicles to the point where they will be safer than the manual cars being driven today. They predict the number of road traffic accidents—which according to the World Health Organization (WHO) account for more than 1.3 million deaths and up to 50 million people injured worldwide every year—will drop thoroughly as a result.

Dr Dimitrios Liarokapis, a member of the research group, said: "With the help of 5G, an early warning system that alerts (给……报警）drivers is possible within the next few years. Cars that are close enough to the danger area will send warning messages to other cars around them using short-range communication technologies, but also to cars further away using 5G, fast and reliably. Then those cars will transmit the same information to cars near them and so on, forming a joined-up, multi-vehicle communication chain that stretches far and wide."

Automotive giant Ford is already working on connected cars. Earlier this year it revealed its intention to fit 80 percent of its 2020 vehicles with technology that warns drivers about upcoming road accidents, bad weather and traffic jams. The system pools data from other connected road users, emergency services and the authorities and sends it from the cloud directly to the car. Alerts are shown on the car's dashboard display warning the driver about what lies around the corner.

【推荐3】Scientists have recently developed a method to 3D-print greener buildings using local soil that they say has the possibility to be in the lead in the construction industry.

Sarbajit Banerjee, a professor of chemistry and materials science and engineering at Texas A&M University, said 3D printing enabled them to print the entire front of a building, although getting such structures to meet existing building rules was still a significant challenge.

Concrete (混凝土) is still the important material used in many construction projects but it cannot be recycled and requires a lot of energy to mix and transport. The research team’s aim is to print structures using the type of soil that can be found in any garden.

“While concrete is widely used in housing and has enabled the growth of cities, this has come at a considerable environmental cost,” said Banerjee.

“The move to 3D-print concrete threatens to exacerbate this problem. However, we try to make a new example of construction that uses naturally sourced materials. Using such materials will further pave the way for building designs that are specifically adapted to the needs of the local climate.

What’s more, the use of local materials would reduce the need to transport concrete long distances, further reducing the environmental impact of the buildings.

The research team’s plan to replace concrete with the earth beneath our feet depends on their ability to improve the soil’s capability to stand the weight of the whole house, towards which Banerjee said they “are making excellent progress”.

Once they have a clearer idea of the limits of the technology, Banerjee and his team plan to further investigate how it might allow for building on other planets. For instance, they have worked on addressing the problem of building all-weather roads near the arctic area. They hope the technology could one day be used beyond Earth, to create settlements on the moon or even Mars.

【推荐1】We say that technology is a double-edged sword -while it brings convenience, it also brings new problems. The sword of “social media” even has a gender preference in its damage: It cuts deeper into girls than boys.

Earlier studies have shown that spending too much time on social media is bad for teenagers’ mental health. Constantly watching their friends show off “perfect” lives can hurt their own self-esteem (自尊). That’s not to mention the problems caused by online shaming and bullying (霸凌).

Jean Twenge, a professor at San Diego State University in the US, recently discovered an alarming trend: Since 2010, the number of teenage girls who suffer from major depression – showing signs like self-harm and suicide (自杀) - has increased much faster than that of boys. In an article she wrote at The Conversation, Twenge said social media, again, was to blame.

For starters, girls use social media more than boys. Boys tend to spend their screen time on games, where they talk to their teammates through headphones. This counts as real human contact. Girls, however, simply type and browse through posts, which is a much more isolated (孤立的) experience. “They’re not having a real-time conversation with someone,” Mary Fristad, psychologist at The Ohio State University, told NPR.

And when it comes to online shaming, girls are also more vulnerable than boys. “Girls face more pressure about their appearance, which could be exacerbated (加重) by social media,” wrote Twenge.

Shannon McLaughlin, for example, is an 18-year-old from Blackburn College in the US. She shared with the Guardian how social media made her feel depressed. “I was constantly confronted (面对) by women with skinny bodies who were praised for the way they looked. This was only made worse by the diet fixes and skinny culture,” she said. But McLaughlin found a solution. She started volunteering with the National Citizen Service, where she made face-to-face contact with people. “It’s so easy to forget the importance of real connections when we have hundreds of people that we’re trying to impress at our fingertips,” she told the Guardian. And she hopes that others “look up from their phones and focus more on the world around them”.

【推荐3】You may think you couldn’t live through summer without air conditioning. But in ancient China, hand fans were almost the only way to drive the heat away.

Chinese people started to use hand fans over 2, 000 years ago. The fans came in different shapes and were made from all kinds of materials. Palm leaf fans were cheap and easy to make. Feather fans marked the owner’s high status. Sandalwood fans could send out a sweet smell. Later, hand fans became far more than just something that could cool you down. They developed into works of art, in which Tuanshan-round fans, and Zheshan-folded fans, were the most common. In the shape of a fullmoon, Tuanshan were usually made of silk. They had beautiful embroidery (刺绣) featuring birds and flowers on them. Women, especially those in the royal palace, liked to use them. Poets in ancient China often compared an abandoned (被抛弃的) woman to Tuanshan. A poet in the Qing Dynasty, Nalan Xingde was a typical example. He wrote, “If only life were as beautiful as when we first met, why should the autumn wind bother to pity deserted painted fans?”

Meanwhile, men, especially the literati (文人), used Zheshan. The literati liked them because Zheshan were usually made of paper and they could paint and write poems on them. It was a way for them to show off their skills in literature, painting and calligraphy (书法). Many things were painted on Zheshan, but the most popular choice was usually beautiful scenery.

Today, Chinese people still use these fans, though not many people write or paint on them any more. This summer, why not paint one of your own?