laitimes

The cumulative number of confirmed covid-19 cases in the world exceeded 300 million; the study found that fingerprints are related to limb development genes丨Technical early news

The cumulative number of confirmed covid-19 cases in the world exceeded 300 million; the study found that fingerprints are related to limb development genes丨Technical early news

【Today's Cover】

Recently, the South Section of the Xin'an River in The Huangshan Mountains of Anhui Province has welcomed many pairs of wild Mandarin ducks, which are paired in pairs, some playing in the water, some sorting feathers on the shore, and some flying together. Photo by Ye Zhenghong, Issued by China News Network

Message stations

The cumulative number of confirmed covid-19 cases in the world exceeded 300 million; the study found that fingerprints are related to limb development genes丨Technical early news

Screenshot of the website of the State Post Bureau

●On January 7, the State Post Bureau issued a notice on the Administrative Measures for the Express Delivery Market (Revised Draft) (Draft for Solicitation of Comments) for public comment. It is mentioned that enterprises engaged in express delivery business shall not confirm the receipt of express mail on behalf of the user without the consent of the user, and shall not deliver the express mail to intelligent express boxes, express delivery service stations and other express delivery terminal service facilities without authorization; enterprises operating express delivery business shall take security technical measures such as encryption and de-identification to protect the security of express waybill information, and shall not display the identity information of natural persons in its entirety. No unit or individual may illegally use or resell express delivery waybills. (Source: China News Network)

The cumulative number of confirmed covid-19 cases in the world exceeded 300 million; the study found that fingerprints are related to limb development genes丨Technical early news

On January 5, in Zhoujiazhuang Village, Guodu Street, Chang'an District, Xi'an, medical staff prepare to enter a home for nucleic acid testing. Photo by Xinhua News Agency reporter Shao Rui

● On January 7, Xi'an, Shaanxi Province, issued a notice on further clarifying the medical procedures for all types of personnel. The notice requires that all communities (villages) in the city, Xi'an emergency centers and medical institutions must not use the 48-hour negative nucleic acid verification certificate as a restriction on entering and leaving the community for medical treatment, transferring patients and receiving treatment. After the patient arrives at the receiving hospital, those who do not have a 48-hour negative nucleic acid certificate can be treated normally after the nucleic acid is collected synchronously. (Source: CCTV News Client)

The cumulative number of confirmed covid-19 cases in the world exceeded 300 million; the study found that fingerprints are related to limb development genes丨Technical early news

Image source: CCTV news client

●Recently, the organ transplant team of the People's Hospital of Guangxi Zhuang Autonomous Region successfully performed a kidney transplant for a child infected with human immunodeficiency disease (HIV) and renal failure. It is reported that this is the first case of kidney transplantation for an HIV-infected child in the country. (Source: CCTV News Client)

Pure technology

The cumulative number of confirmed covid-19 cases in the world exceeded 300 million; the study found that fingerprints are related to limb development genes丨Technical early news

Li Jinxi, a postdoctoral fellow at the Institute of Human Phenotypes at Fudan University and the first author of the paper, demonstrated fingerprint collection equipment. Image source: Fudan University official website

●Recently, an international study led by Chinese scientists conducted genome-wide association scanning and multi-population meta-analysis for more than 23,000 individuals, from which 43 genetic loci associated with human fingerprint patterns were identified. After analyzing the relationship between millions of genetic loci and fingerprint patterns, researchers pointed out that genes related to human limb development play a key role in the formation of fingerprint pattern phenotypes. On January 7, the relevant research results were published in the main issue of Cell. (Source: Science and Technology Daily)

The cumulative number of confirmed covid-19 cases in the world exceeded 300 million; the study found that fingerprints are related to limb development genes丨Technical early news

Image source: Visual China

●The regenerative medicine team of Dai Jianwu, a researcher at the Institute of Genetics and Developmental Biology of the Chinese Academy of Sciences, and the team of Hu Yali, professor of Nanjing Drum Tower Hospital, conducted single-cell sequencing analysis of the human embryonic spinal cord in early and middle pregnancy for the first time through single-cell transcriptome technology, which provided theoretical support for understanding human spinal cord development, studying spinal cord regeneration and repair, and exploring the selection of seed cells in in vitro spinal cord manufacturing strategies. The study was recently published in EMBO Reports. (Source: China Science Daily)

Look at the world

The cumulative number of confirmed covid-19 cases in the world exceeded 300 million; the study found that fingerprints are related to limb development genes丨Technical early news

Image source: Observer Network Weibo

The cumulative number of confirmed covid-19 cases in the world exceeded 300 million; the study found that fingerprints are related to limb development genes丨Technical early news

On January 6, the journal Science published a study in which American scientists demonstrated a new way to reprogram T cells using mRNA preparations to attack fibroblasts in the heart. Injection of mRNA preparations in mice simulating heart failure successfully reprogrammed a large number of mouse T cells resulted in a significant reduction in the fibrosis of the animals' hearts and the restoration of much of normal heart function. (Source: Science and Technology Daily)

Da

The cumulative number of confirmed covid-19 cases in the world exceeded 300 million; the study found that fingerprints are related to limb development genes丨Technical early news

Shanxi Houma Doulonggou Village is a "ice butterfly" that spreads over the mountains. Image source: CCTV news client

●Recently, the "ice butterflies" in The village of Houma Doulonggou in Shanxi Province have been watched by many photography enthusiasts. "Ice butterfly" is a natural landscape, often formed from December to February of the following year, when the temperature, humidity, wind, wind direction are suitable, the mint grass in the mountains will form a thin ice flakes like a butterfly, crystal clear, different forms, hence the name. (Source: CCTV News Client)

Editor: Zhang Shuang

Review: Wang Xiaolong

Final Judge: Liu Haiying

Read on