【推荐2】Voluntourism — a new trend (趋势) of volunteer tourism

Have you ever thought about going abroad to volunteer? Nowadays there’s a trend that more and more people are interested in volunteer tourism.

Making a difference in a country less lucky than your own is seen by most as a really good thing to do. More and more volunteers are seeking meaning and a sense of purpose in life. “They use their skills to help on projects abroad, such as building hospitals, teaching English in schools, looking after children in orphanages (孤儿院), etc.”

However, some people are against this so-called “voluntourism”. Volunteers take away jobs from locals who would have otherwise done that work. Yes, sometimes volunteers have specific knowledge which can benefit communities, such as IT skills or speaking English as a native language. But sometimes they are put to work on construction sites (建筑工地), for example, depriving (使失去) locals of a job on project.

Besides, many young travelers are untrained for the role. This could become a health and safety problem on construction sites or when caring for children. I volunteered myself last year in a library and school in Ghana. I helped to reshelve books, talked to the librarian about the running of the library and played games with the children. However, I’m not an experienced teacher or librarian, and I felt like the locals were far too trusting of my opinions and decisions, just because I come from a more developed country.

Furthermore, volunteer tourism is seen by some as just that-an industry, a way for companies to make money. About $2 billion was spent by volunteers in 2015.Surely it would be better if this money were directly given to places where it is needed the most. Instead, most of the money is going to tourism companies, while local communities only see a very small amount of it. I met some Danish girls who had paid €7,000 each to a company to volunteer at an orphanage, but very little was spent on the orphanage itself.

I think volunteering abroad helps us develop as a person, and is a shining addition to a CV. Volunteer projects are usually very valuable for communities, but often good for those who take part in voluntary work just as much, if not more, as those they are helping.

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【推荐1】Chinese scientists have identified a new protein that restricts HIV infection, a discovery that could pave the way for the development of new drugs against the virus. The protein, P-selectin glycoprotein ligand 1 (PSGL-1), which exists in human cells, can inhibit (抑制) the process by which HIV reproduces, according to research published in the science journal Nature Microbiology this month.

However, the study also showed that PSGL-1 can be negatively affected by Vpu－an accessory (附属) protein of HIV－which can neutralize the ability of PSGL-1 to resist HIV. Further research is under way to develop a drug that can inhibit the HIV protein so that PASGL-1 can restrict HIV, according to Tan Xu, a researcher at Tsinghua University's School of Pharmaceutical Sciences, a leading author of the study.

Several other proteins in human cells that could resist HIV have been discovered over the past 10 years, but the virus can also evade (避开) them. PSGL-1 shows particular promise in that it can inhibit the HIV in multiple ways－especially by blocking the infectiousness of virus offspring, Tan said.

“We are starting to research into small molecule (分子) compounds in the hope of finding one that can restore PSGL-1’s anti-HIV function. In this way we can develop a very effective antiviral drug for people with HIV/AIDS,” he said. Tan said it will require at least three to five years for the research to reach the preclinical stage, and more time after that before a clinical trial is possible. The research was conducted by researchers at Tsinghua University in Beijing, Fudan University in Shanghai and George Mason University in the United States.

Existing treatment methods for people with HIV/AIDS, which mostly rely on a combination of different drugs, can prevent the disease from progressing but cannot cure it, and long-term use of drugs can result in drug resistance.

An estimated 37 million people in the world live with HIV, according to the Joint United Nations Programme on HIV/AIDS. The study provides new leads to developing antiviral drugs, Tsinghua University said in a statement.

【推荐2】Imagine you are on a cold mountain with steep rocks around. As you climb higher, the air gets thinner and the sun’s rays stronger. Just before you reach the snowline, you find what you came for—a small white flower, the edelweiss, which only grows in alpine areas.

Plants face many challenges living in alpine areas, and only 200 kinds of plants can grow there. Plants rely on oxygen, water, and sunlight to make their own food through the process of photosynthesis. The alpine means less CO2, which makes the process more difficult. It also brings plants closer to the sun. The sunlight is so strong that it can burn a plant’s leaves. There is little water here, so the soil is dry and rocky. You also won’t find high trees because the cold wind would blow them over！

Alpine plants have advantages that help them survive the bad conditions. Like all alpine plants, the edelweiss stays close to the ground to avoid the wind. The cold water is deep underground, so the edelweiss grows very deep roots. Its leaves have a thick covering, which protects the plant from the wind and the sun’s bright rays. All these special characteristics help it grow, but very slowly.

The edelweiss can live in the conditions, but humans can’t. Climbing in the high and cold mountains is dangerous and difficult. This is why the edelweiss became such a special flower. Long ago, a young man would pick an edelweiss flower to prove his love to a girl, although it was risky. Many men died while trying. Getting the flower proved that the man was physically strong, brave, and devoted.

Alpine plants can’t spread seeds, so it’s difficult for new plants to grow. Once all the edelweiss flowers are gone in an area, they will not regroup. Governments help protect the edelweiss because it is considered an endangered plant.

【推荐3】

Despite being located in a bustling urban part of Huanggang in Hubei, Xiao Yaqin’s apartment block stands out because of its green appearance resulting from being wrapped in green plants. “ It makes me feel very comfortable. When you open the window, fresh air keeps rolling in, ” the 65-year-old said excitedly.

He was one of the first group of residents that recently moved into China’s first “ vertical (垂直的) forest ” residential project, consisting of two 80-meter-tall, 25-story buildings.

The project is the result of cooperation between Easyhome and Italian architect Stefano Boering, often called “ the father of the vertical forest ” . There are 404 trees and 4,620 shrubs (灌木丛) in the vertical forest, which is classified as the “ fourth generation ” of housing. Grasses, flowers and climbing plants cover 2,408m² of the floor area. The plants are estimated to be capable of absorbing 22 metric tons of carbon dioxide from the atmosphere per year, while generating 11 tons of oxygen.

However, its development hasn’t been met without doubt. For example, mosquito infestations (感染) are one of the reasons why people are reluctant to move in. The irrigation system required to ensure the survival of the plants in the vertical forest and the need to have gardeners cut the branches mean much higher maintenance costs than in regular buildings.

It is not yet known what the future of fourth-generation housing will be in China, but it has at least brought urban residents a new life experience. Xiao, the retiree, said his new apartment has met his expectations for better quality of life. “ You feel you are close to nature, even if you don’t open the window, ” he said.