Technology Morning News丨my country's COVID-19 vaccine has been fully vaccinated with more than 1.2 billion people

【Today’s cover】

Recently, the 23rd Harbin Ice and Snow World, with the theme of "Light of the Winter Olympics Shining in the World", opened. This year's Ice and Snow World used 230,000 cubic meters of ice and snow, built 65 groups of ice and snow landscapes, and the number of single landscapes exceeded 100. Through ice and snow landscapes, lighting effects, etc., a magnificent ice and snow kingdom was created. Photo by Xinhua News Agency reporter Xie Jianfei

News Station

Photo by Xinhua News Agency reporter Lu Hanxin

●As of the 25th, 31 provinces (autonomous regions, municipalities) and the Xinjiang Production and Construction Corps have reported a total of 275,809,400 doses of COVID-19 vaccines, and the number of people who have completed the full course of vaccination has exceeded 1.2 billion, reaching 120,336,200. (Source: Xinhua News Agency)

Image source: Ministry of Natural Resources

●At 11:11 on the 26th, my country successfully launched the 5-meter optical 02 satellite (also known as Resource 1 02E satellite) using the Long March 4C carrier rocket at the Taiyuan Satellite Launch Center. This mission is the 403rd launch of the Long March series of carrier rockets. (Source: Science and Technology Daily)

Photo by Wu Yajie

●On the 26th, the Jiuquan-Dongfeng section of the Jiu'e Railway, which was surveyed and designed by the First Railway Survey and Design Institute, was put into operation. The line directly connects to the Jiuquan Satellite Launch Center of China, and people along the line now have a new option to watch satellite launches by train. (Source: Science and Technology Daily)

Image source: China Weather Network Weibo

●At 10:00 on the 26th, the Central Meteorological Observatory issued a blue low temperature warning. It is expected that the daily average temperature in Guizhou, Hunan, Guangxi, Guangdong and southeastern Chongqing will be about 5°C lower than the same period in history from the daytime of the 26th to the 28th. Among them, some areas in central and eastern Guizhou and western Hunan may be as low as 7°C. This is the first low temperature warning since the formulation of the meteorological disaster warning issuance method in 2013. (Source: China Weather Network)

Pure Technology

a. Small-leaf loquat; b. Narrow-leaf loquat; c. Nujiang loquat; d. Oak-leaf loquat; e. Obovate loquat; f. Loquat; g. Malipo loquat; h. Large-flowered loquat; i. Fragrant flower loquat; j. Taiwan loquat. Image source: Kunming Institute of Botany, Chinese Academy of Sciences

●Recently, Ma Yongpeng's research group at the Kunming Institute of Botany, Chinese Academy of Sciences, and their collaborators collected 47 populations of 23 species of the genus Eriobotrya in my country and Southeast Asia, and conducted research on the evolutionary history of the genus Eriobotrya based on a series of population genetics and phylogenetic methods. The study found that the genus Eriobotrya originated in the Eocene in tropical Asia. Subsequently, the strengthening of the East Asian monsoon climate and global cooling in the Miocene changed the location of the tropical and subtropical transition zones at that time, leading to secondary contact of a large number of species and interspecific hybridization and gene introgression. (Source: Kunming Institute of Botany, Chinese Academy of Sciences)

Image source: University of Science and Technology of China

●Recently, Guan Qingfang, a special associate researcher from the team of Academician Yu Shuhong of the University of Science and Technology of China, and others have explored the microscopic mechanism of high strength and toughness of traditional rice paper through detailed structural characterization. Inspired by the manufacturing process and structure of rice paper, they have developed a high-fog transparent film with a multi-scale structure, which is an ideal choice for the substrate material of flexible transparent electronic devices. The relevant research results have been published in ACS Materials Communications. (Source: Science and Technology Daily)

New findings

●Recently, a multicenter study led by Professor Kan Haidong of the School of Public Health at Fudan University collected birth records, infant birth weight, maternal and household information from 15 African countries between 2005 and 2015, and used a global satellite model to conduct an exposure assessment to explore the impact of exposure to fine particulate matter (PM2.5) during pregnancy on low birth weight and premature birth. The results showed that PM2.5 exposure can increase the risk of premature birth and low birth weight in infants. The relevant research results have been published in Environment International. (Source: Science and Technology Daily)

See the world

Image source: Xinhua News Agency

●At 8:20 a.m. local time on the 25th, after several delays, the James Webb Space Telescope, which took 26 years to build and cost $10 billion, was launched from the European Spaceport in French Guiana. Researchers expect to use the telescope to explore the history of the universe at various stages and understand the origins of many celestial systems. The Webb Space Telescope is considered the "successor" to the Hubble Space Telescope. (Source: Xinhua News Agency)

●Recently, the National Oceanographic Survey Institute under the Ministry of Oceans and Fisheries of South Korea released a study showing that in the past 30 years, the sea level along the coast of South Korea has risen by 3.03 mm per year, a total of 9.1 cm. (Source: China News Service)

Source: Science and Technology Daily

Editor: Wang Yu

Reviewer: Wang Xiaolong

Final judge: He Yi