Core Insights - The research team from the Institute of Modern Physics of the Chinese Academy of Sciences has made significant progress in the study of rare decay modes of atomic nuclei, successfully observing the new nuclide aluminum-20 and its decay through a rare three-proton emission mode [1][2] Group 1: Research Findings - Over 3,300 nuclides have been discovered, with fewer than 300 being stable nuclides found in nature; the rest are unstable and undergo radioactive decay [1] - The study utilized the fragment separator at the Helmholtz Institute and employed in-flight decay experimental techniques to measure the angular correlations of decay products from aluminum-20 [2] - Aluminum-20 is the lightest aluminum isotope discovered experimentally, located outside the proton drip line and lacking seven neutrons compared to stable aluminum isotopes [2] Group 2: Theoretical Implications - The research team applied the Gamow shell model and Gamow coupling method for theoretical calculations, successfully reproducing the measured decay energy of aluminum-20 and predicting its ground state spin-parity [2] - The study explored the isospin symmetry between aluminum-20 and its mirror nucleus nitrogen-20, revealing a breaking of this symmetry, which is significant for nuclear structure research [2]

Core Insights - A new gene editing technology has been developed by researchers from the Chinese Academy of Sciences, enabling precise manipulation of large DNA segments ranging from thousands to millions of base pairs, significantly enhancing the scale and capability of gene editing [1][2] - The technology, termed PCE (Programmable Chromosome-level Editing), integrates three innovative systematic technical pathways, demonstrating powerful capabilities in various complex operations on DNA [1] Group 1: Technology Development - The new gene editing technology allows for precise insertion of ultra-large DNA segments containing 18,800 base pairs, targeted replacement of DNA sequences with 5,000 base pairs, inversion of long chromosome segments with 12 million base pairs, and deletion of long chromosome segments with 4 million base pairs [1] - The technology has shown effectiveness in both plant and animal cell experiments, indicating its versatility and potential for broad applications [1] Group 2: Applications and Implications - The technology has been successfully applied to rice, where a DNA segment containing 315,000 base pairs was precisely inverted, resulting in the cultivation of herbicide-resistant rice varieties, showcasing its extensive application prospects [2] - This advancement opens new pathways for crop trait improvement and genetic disease treatment, potentially driving new breeding strategies and the development of synthetic biology [2] - Reviewers have recognized this work as a significant breakthrough in the field of genetic engineering, highlighting its vast application potential in breeding and gene therapy [2]

Core Insights - Jiangxi's aviation industry has made significant advancements, including the production of over 25% of the C919 large passenger aircraft's fuselage components and the establishment of a core test flight base for large aircraft [1] - The city of Jingdezhen has been designated as a pilot city for the reform of the technology transfer mechanism in the aviation industry, which is expected to enhance the overall efficiency of technology transfer in Jiangxi's aviation sector [1][3] Group 1: Development of Aviation Industry - Jingdezhen is emerging as a key aviation industry base, attracting various research institutions and central enterprises, which supports the growth of the local aviation sector [2] - The Jingdezhen Aviation Town, covering 12 square kilometers, is fostering the rapid gathering of aviation industry resources, with new companies specializing in drone manufacturing being established [2] - The aviation industry chain in Jiangxi is being strengthened, with a focus on integrating upstream and downstream sectors, including helicopter and drone research and manufacturing [2] Group 2: Technology Transfer and Innovation - Jingdezhen is implementing measures to accelerate the commercialization of scientific research results, including the establishment of a technology transfer center and funding support for new verification centers and pilot bases [3] - The local government is actively creating a new ecosystem for technology transfer in the aviation industry, aiming to enhance the linkage between research and market needs [3] Group 3: Industrial Ecosystem and Collaboration - Jiangxi's aviation industry benefits from a strong historical foundation, with Nanchang being the birthplace of China's first aircraft, which supports the development of an aviation equipment industry cluster [4] - The formation of an industrial ecosystem is enhancing Jiangxi's integration into the Yangtze River Delta large aircraft cluster, providing a collaborative framework for regional industry [4] - Jiangxi is recognized as a key player in the national advanced manufacturing cluster for large aircraft, with ongoing strategic cooperation with COMAC to boost domestic aircraft manufacturing capabilities [4] Group 4: Future Goals and Economic Impact - Jiangxi aims to establish a dual-core and multi-point support industrial development pattern centered around Nanchang and Jingdezhen, with a target of achieving 250 billion yuan in total revenue from the aviation industry chain by 2026 [5] - The province currently hosts 297 aviation-related enterprises, including 191 manufacturing and supporting units, indicating a robust industrial base [5] - The focus will be on advancing technologies in aircraft, engines, key materials, and core components, while enhancing services and economic development related to aviation [5]

为确保材料与生物体的兼容性，研究团队选用经光敏分子修饰的名为PEDOT:PSS的导电聚合物。这种 特殊塑料既具有优异的导电性，同时兼具柔韧性和生物相容性，完美契合电子设备与生物组织的接合需 求，且能在人体正常温度下稳定工作。 研究团队表示，这项技术有望为年龄相关性黄斑变性等视网膜疾病提供全新治疗方案。目前团队已通过 体外实验验证了材料与神经组织的相容性，测试结果令人满意。不过，在正式投入医疗应用前，仍需进 行更全面的生物安全性评估。 （文章来源：科技日报） 德国于利希研究中心与亚琛工业大学等机构组成的跨学科团队，研制出一款创新型有机光电化学晶体管 （OPECT）。这种微型装置不仅能将光信号转化为电信号，还可模拟大脑神经细胞的运作机制，未来 或将成为高灵敏度光学传感器及脑机接口的核心组件。研究成果发表于最新一期《先进科学》杂志。 人脑通过神经细胞间的信号传递实现认知功能，这些细胞会随着学习与记忆过程不断自我调节。科学家 试图在电子设备中复现这种特性，由此催生了"神经形态电子学"这一前沿领域。而开发具有类脑"学 习"能力的材料，正是推动该领域发展的关键。 最新进展在这一领域迈出了重要一步，其创新性主要体现在新材料 ...

Core Viewpoint - The use of drones by the company Beijing Badaling Low-altitude Technology Development Co., Ltd. is enhancing flood prevention efforts in the Yanqing District of Beijing, particularly in response to rising water levels due to recent heavy rainfall [1][2]. Group 1: Company Operations - The company has deployed 25 drone nests across 18 key areas in Yanqing District for flood monitoring [2]. - Drones can manage flight plans automatically or be remotely controlled for immediate tasks, generating detailed reports upon detecting anomalies [2]. - From August 2 to 3, the drone nests completed 21 flights totaling 8 hours, while emergency teams conducted 41 flights totaling 16 hours, identifying 24 potential post-disaster hazards [2]. Group 2: Technology and Monitoring - The drones are equipped with high-definition cameras to monitor risk areas, such as water edges where people may gather [1]. - The integration of intelligent drone nests and rapid response teams creates a comprehensive monitoring network for flood prevention [2]. - All identified issues, including images and coordinates, are promptly reported to relevant authorities for quick resolution [2].

Core Insights - The research team from the Institute of Modern Physics of the Chinese Academy of Sciences has made significant progress in the study of rare decay modes of atomic nuclei, successfully observing the new nuclide aluminum-20 and its decay through a rare three-proton emission mode [1][2] Group 1: Research Findings - Over 3,300 nuclides have been discovered, with fewer than 300 being stable nuclides found in nature; the rest are unstable and undergo radioactive decay [1] - Common decay modes include alpha decay, beta decay, beta-plus decay, electron capture, gamma transition, and fission, with many of these modes identified before the mid-20th century [1] - Recent advancements in nuclear physics experiments have led to the discovery of various new decay modes, particularly in neutron-deficient nuclei [1] Group 2: Specific Observations - The aluminum-20 nuclide, located outside the proton drip line and lacking seven neutrons compared to stable aluminum isotopes, is the lightest aluminum isotope observed experimentally to date [2] - The decay of aluminum-20 occurs through a two-step process involving the emission of a proton and then a double proton, with magnesium-19 acting as an intermediate state [2] - The research utilized the Gamow shell model and Gamow coupling method for theoretical calculations, successfully reproducing the decay energy of aluminum-20 and predicting its ground state spin parity [2] Group 3: Theoretical Implications - The study explores isospin symmetry, a fundamental principle in nuclear physics, indicating that mirror nuclei with the same mass number but swapped proton and neutron numbers should exhibit similar energy level structures [2] - The findings suggest a breaking of isospin symmetry in the aluminum-20 and nitrogen-20 mirror nucleus system, which has significant implications for nuclear structure research [2]

责任编辑：江蓬新 中国能建中电工程西北电力设计院有限公司（以下简称"中国能建西北院"）首次牵头承担的课题"耦合 储热的灵活高效燃煤发电机组系统集成技术"近日正式获批。 该课题隶属于"耦合储热的超超临界灵活高效燃煤发电机组关键技术及工程示范"项目，由怀柔实验室牵 头，联合11家顶尖科研机构及龙头企业共同承担，项目总投资达14.48亿元。 据了解，课题将依托中国能建西北院在燃煤发电及储热领域60余载的技术积淀，重点解决燃煤机组深度 调峰与高效储热耦合等核心难题，构建新型发电机组系统集成方案，形成具有自主知识产权的关键技术 体系。该成果将直接应用于后续600兆瓦级超超临界燃煤发电工程示范。（王禹涵） ...

Core Insights - A research team led by researcher Han Wenbiao from the Shanghai Astronomical Observatory has discovered that binary black holes may not be "lonely wanderers," but could be influenced by a third dense celestial body during merger events, providing new clues to the formation of binary black holes [1][2] Group 1: Research Findings - The research results were published on August 1 in the international journal "Astrophysical Journal Letters" [1] - Since the first detection of gravitational waves in 2015, over 100 gravitational wave events have been detected, most of which originate from binary black hole mergers, offering critical data for understanding the physical processes involved [1] - The research team previously proposed a model where a supermassive black hole and a binary black hole form a "trio," with the binary black hole being influenced by the supermassive black hole's gravity, leading to a gradual decrease in their orbital distance and the emission of gravitational waves [1] Group 2: Specific Event Analysis - The team focused on the gravitational wave event GW190814, which features two black holes with a mass difference of nearly 10 times, suggesting they may have once formed a "trio" with a supermassive black hole [2] - The presence of a third dense body near the binary black holes could create a line-of-sight acceleration, altering the frequency of gravitational waves through the Doppler effect, leaving a unique "signature" in the signals [2] - The analysis of multiple high signal-to-noise ratio binary black hole events strongly supports the existence of line-of-sight acceleration in the GW190814 event, marking the first clear indication of a third dense body in a binary black hole merger [2]

Core Insights - The research team from the Victoria Museum in Australia has created a global distribution and evolutionary relationship map of the sea snake tail, revealing that marine life connections in the deep sea are more intricate than previously thought [1][2] - The study, published in the latest issue of Nature, indicates that the sea snake tail, an ancient polychaete that has existed for 480 million years, can be found from shallow waters to depths exceeding 3,500 meters [1] - The analysis of 2,699 specimens from 48 natural history museums, collected during 332 scientific expeditions, has uncovered the migration mysteries of this deep-sea animal [1] Research Findings - Sea snake tails, which lack fins and wings, can migrate across oceans via deep-sea currents, with their larvae's extended survival in cold water being crucial for this "free ride" [1] - The study provides a new perspective on marine evolution, suggesting that the deep sea is not an isolated environment but rather a "biological highway" with extensive connectivity [1] - Notably, temperate deep-sea communities exhibit remarkable global interconnections, such as the close evolutionary ties between species in southern Australian waters and their "distant relatives" in the North Atlantic [1] Environmental Implications - The research highlights that deep-sea ecosystems are not entirely homogeneous; while species are dispersing, environmental changes and geological events continue to shape unique biodiversity patterns [1] - The findings underscore the importance of protecting deep-sea life in the face of threats from deep-sea mining and climate change [1][2]

Group 1 - The National Healthcare Security Administration (NHSA) is promoting the application of artificial intelligence and big data in the healthcare insurance sector, transitioning from traditional methods to intelligent and precise fund supervision [1][2] - The healthcare insurance data encompasses 1.33 billion insured individuals, 50 million employers, 1.14 million hospitals and pharmacies, 17,900 medical supply companies, and 376,000 medical products, supporting an annual revenue and expenditure of approximately 3 trillion yuan and 10 billion medical service transactions [1] - The 2025 National Smart Healthcare Insurance Competition will adopt an open model without specific tracks, focusing on various fields such as healthcare, innovative drug development, financial insurance, and academic research [2] Group 2 - Participants in the competition will have access to real patient data regarding medical treatment, settlement, fund operation, and drug usage, which will enhance the feasibility and practicality of their proposals [2] - The competition marks the first attempt to integrate healthcare insurance data with data from other industries, facilitating interconnectivity and collaboration among healthcare institutions, research institutes, universities, and corporate R&D centers [2] - The Shanghai government will provide a secure and compliant local healthcare insurance data verification environment and computational resources for projects aiming for local implementation [3]