Home / BCAS / No.4, 2020 No.4, 2020   Contents   194 In This Issue   197 XI Congratulates on Successful Deep-Sea Trials of Submersible   198 Return of Lunar Samples Ignites Aspirations for Scientific Discoveries   201 CAS in China's Lunar Exploration Program   203 Scientists Say Farewell to Daya Bay Site, Proceed with Final Data Analysis   206 CAS Embraces Era of Multi-messenger Astronomy with Successful Launching of "Huairou-1" Twin Satellite   208 FAST Reveals Mystery of Fast Radio Bursts from the Universe   210 FAST Helps Reveal the Origin of Fast Radio Bursts   212 Suggestions on Enhancing Chinese Scientists' Institutionalized Participation in Law Making   221 Revealing Secret of Lithium-rich Stars by Monitoring Their Heartbeats   223 Detailed Diagnostic of the Mystery of the Famous Diagonal Ridge Pattern in the Milky Way   224 Tens GeV Dark Matter Interpreted by Antiproton Excess Is Constrained   226 Continuous Fabrication of Single-Walled Carbon Nanotube Transparent Conductive Films via Blown Aerosol Technique   228 S±-pairing Symmetry Defining High-order Topological Superconductor   229 Localized Spin-orbit Polaron in Magnetic Weyl Semimetal Co3Sn2S2   232 A Metal-free Nanozyme-activated Prodrug Strategy for Targeted Tumor Catalytic Therapy   234 New Study Reveals Serotonin Signals' Role in Reversing "Loser Effect" Mechanism   236 Mystery Solved: How Do Tips of Plants Stay Virus-free?   238 Researchers Provide Novel Insights into Human Skin Aging   240 An Aphid-secreted Salivary Protease Activates Plant Defense in Phloem   242 Researchers Uncover Neural Mechanisms Responsible for Animals' Social Interaction   243 Scientists Reveal Role of RNA Helicase in Zygote Activation and Stem Cell Homeostasis in Pants   245 Scientists Develop Rapid Lateral Flow Immunoassay for Fluorescence Detection of SARS-CoV-2 RNA   247 High-performance Photopolymerized Gel Electrolyte Developed for Solid-state Sodium Metal Batteries   248 Tree Rings Provide Evidence for Climate Regime Shifts   250 New Structures Found in the Smallest Ice Cube   251 Scientists Snap Molecular Building Blocks of Brain Computing   253 Denisovan DNA Found in Sediments of Baishiya Karst Cave on Tibetan Plateau   255 The Earliest Giant Flying Birds Flew over Antarctica 50 Million Years Ago ©  Bulletin of the Chinese Academy of Sciences. All rights Reserved. Tel: 86-10-62542631    Fax: 86-10-62542631 Add: P.O. Box 8712, Beijing, 100190    Email: bulletin@casipm.ac.cn