【Today's Cover】
In April, the Liujiaxia Reservoir in Linxia Hui Autonomous Prefecture, Gansu Province, increased the flow out of the reservoir in accordance with the dispatching requirements of the Yellow River Water Conservancy Commission to ensure spring ploughing production in the middle and lower reaches of the Yellow River. Xinhua News Agency issued a photo by Shi Youdong
Message stations
On April 4, in the East Residential Area of Pudong New Area in Shanghai, citizens lined up for nucleic acid testing and sampling. Photo by Xinhua News Agency reporter Ding Ting
● At the press conference on the prevention and control of the new crown pneumonia epidemic in Shanghai held on April 10, it was learned that as of the 9th, more than 11,000 patients and medical observers had been discharged from hospital and released from medical observation in Shanghai. The Shanghai Municipal Health Commission stressed that for those who are discharged from the hospital and released from medical observation, the territory must do a good job of docking, allow them to go home, must not obstruct, and must care for and cooperate with their home health monitoring. (Source: Science and Technology Daily)
● From April 11, primary and secondary schools in Guangzhou (except for high schools with accommodation conditions and fully enclosed management conditions) suspend offline teaching and adopt online teaching; in the third grade of high school, fully enclosed management is implemented in schools, and online teaching is carried out at home if there is no accommodation conditions. Kindergartens are closed to kindergartens. Off-campus training institutions suspend offline teaching. (Source: CCTV News)
New discoveries
Flowers of 6 species of plants of the genus Polyglove. Source: Wuhan Botanical Garden, Chinese Academy of Sciences
●Recently, researchers from the East African Flora and Taxonomy Discipline Group of wuhan Botanical Garden of the Chinese Academy of Sciences and the National Museum of Kenya sequenced the plastic genomes of six species of orchids produced in Kenya, conducted comparative genome analysis on them, and reconstructed the phylogenetic relationship between the genus Dorae and other genera of the orchid family. The research results have been published in the international botanical journal BMC Plant Biology. (Source: Wuhan Botanical Garden, Chinese Academy of Sciences)
A model species of the genus Stuartaceae. Source: Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences
Recently, researchers such as Zhang Qianqi of the Nanjing Institute of Geology and Paleontology of the Chinese Academy of Sciences systematically sorted out the insect fossil records of the Triassic Period on the mainland, focusing on some important Triassic insect groups on the mainland. A total of 1 new family, 3 new genera, 5 new species and 1 new combination were reported, and the evolution and environmental background of related insect taxa in the Early Mesozoic Era were revealed. The results have been published in the international journal Frontiers in Earth Sciences. (Source: Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences)
Pure technology
Source: University of Science and Technology of China
Recently, the Science and Technology Archaeology Laboratory of the University of Science and Technology of China and the Zhejiang Provincial Institute of Cultural Relics and Archaeology cooperated to conduct a systematic chronological analysis of the remains of pottery, braised soil and carbonized plants in the Beicun site. The research team designed an independent emission dating program, based on the statistical model of R language, to calculate the release age of pottery pieces and red-burnt soil. The results have been published in the journal Quaternary Geochronology. (Source: University of Science and Technology of China)
Look at the world
Source: Xinhua International
● South Korea's CDC confirmed on the 9th that half of the country's children aged 9 and under have been infected with the new crown virus. According to data released by the Korean Agency for Disease Control, 1887337 of children aged 9 and under in South Korea have been infected with the new crown virus as of the 9th. This equates to an average of nearly 50,190 out of every 100,000 children in this age group infected with THE NEW CROWN virus, which is the highest proportion among all age groups. (Source: CCTV News)
A poultry farm in the United States. Image source: Visual China
● On April 9, local time, the USDA issued a statement saying that the Animal and Plant Health Quarantine Service under the Ministry of Agriculture has confirmed the emergence of a highly pathogenic avian influenza outbreak in Pitkin County, Colorado. The biological samples involved were tested by the veterinary laboratory at Colorado State University and the presence of the highly pathogenic avian influenza virus was reconfirmed at the Animal and Plant Health And Quarantine Department laboratory in Iowa. (Source: CCTV News)
Look at the weather
Source: Central Meteorological Observatory
● From the 10th to the 14th, most parts of the mainland will usher in windy cooling weather from west to east, and sand and dust will appear in some parts of the northwest. Due to the high temperature in north China, Huanghuai and other places, the general temperature during the daytime has reached more than 30 °C, the cooling range can reach 12 ~ 16 °C, and the local temperature is above 16 °C. (Source: Central Meteorological Observatory)
Editor: Wang Yu
Review: Yue Liang
Final Judge: He Yi