According to the site’s analysis Dosdoce , putting this method into pilot at bookstores not only opens up a “trick” to attract readers, but also contributes to increasing book sales. After listening to an excerpt, if interested, readers can buy the book right there. Especially, for those who “love” audiobooks, this is the bridge that “pulls” them to experience with the latest audiobooks. That also increases the number of potential bookstore customers. With a phone or tablet, readers can scan QR codes to listen to books. Photo: Sznews.com With this new method, the approach to books becomes more relevant to modern life. Customers who come here only need to select the publication they want to listen to. The headset will be made available after scanning the code. In case you want to listen to that publication the next time you come back, you just need to scan the QR code directly on your phone or tablet (the system will break the paragraph and display the QR code for you to save for your return). next). Readers can listen to the audio version and browse the book at the same time. Photo: Sznews.com Another advantage is that customers can listen to and browse through the actual bookstores, or online books, ebooks. This is a combination form (scan the code – listen to the book – buy the book) that pulls readers to the bookstore. This once again shows that the support of electronic devices is an effective bridge in attracting book lovers. Above all, using QR codes to listen to books helps promote new publications, promote reading culture during the epidemic season, in the context of China where the outbreak of Covid-19 with many peaks.

Illustration: Getty Images Speaking after the online meeting, WADA President Witold Banka stated that the new test method will complement existing anti-doping techniques. The dry blood test could mark a new era in anti-doping efforts, thereby helping to increase the number of tests for athletes. Witold Banka also said that the above testing measure has the potential to have a significant positive impact on athletes, anti-doping organizations and could be a turning point in efforts to prevent this form of abuse. this fraud. WADA announced that the new method will be tested at the Tokyo 2020 Olympics, which are about to take place in Japan this summer. Meanwhile, the testers hope the technique will be used regularly at the Winter Olympics and Paralympics in Beijing (China) in February 2022. According to WADA, dry blood testing allows for better analysis of unstable compounds and makes it easier to test athletes in remote areas of the world where traditional blood samples are often difficult to transport. should be easier. With logistical and cost advantages, the dry blood test will allow agencies to test more athletes and collect more samples. Olivier Rabin, WADA’s head of science, says the cost of taking a dry blood sample is also lower than with conventional methods.

1.8g of SiC requires about 177 kW / h of energy. Researchers have proposed a new way of turning plants into a valuable industrial material called silicon carbide (SiC). In a new study, scientists at the Salk Institute (USA) have converted tobacco and corn husks into SiC. These findings are critical to help researchers evaluate and quantify carbon uptake strategies. “The study gives a very careful calculation of how this valuable substance is made and how many carbon atoms are removed from the atmosphere,” said study co-author Professor Joseph Noel of the Salk Institute. SiC is also known as carborundum. This is a super hard material used in ceramics, sandpaper, semiconductors, and LEDs. Salk’s team used a previously reported method to convert plant materials into SiC in three stages. First, the researchers planted tobacco plants from seeds, which were selected for the short growing season. They then pulverized the harvested plants and treated it with a number of chemicals, including silicon-containing compounds. In the final stage, the starch plants are turned into rocks to give SiC. This process involves heating the material to 1,600 degrees Celsius. “We have demonstrated that carbon can be isolated from agricultural residues such as corn husks,” said study author Suzanne Thomas. Thereby, a green material is created ”. Through elemental analysis of plant meal, the authors measured a 50,000-fold increase in carbon sequestration from seed to laboratory plants. This is a demonstration of the effectiveness of plants in reducing atmospheric carbon. When heated to high temperatures to freeze, the plant material loses some of its carbon as a variety of decomposition products. The researchers calculated that the generation of 1.8 g of SiC requires about 177 kW / h of energy. Most of the energy (70%) is used at the freezing step. The current SiC manufacturing process has comparable energy costs, the authors note. Therefore, the team thinks that new technologies produced by renewable energy companies could reduce energy costs. In the future, the team expressed hope to explore this process in a variety of plants, especially species such as horsetail or bamboo. These are species that contain large amounts of natural silicon.