Group 1 - The core viewpoint of the articles emphasizes that technological cooperation is becoming a strong driving force for the high-quality development of the "Belt and Road" initiative [1][2][3] - The second "Belt and Road" Technology Exchange Conference highlighted the importance of building solid partnerships and effective dialogues to ensure that scientific and technological advancements have a profound and practical impact [1] - The construction of the "Digital Silk Road" is facilitating the implementation of cutting-edge technologies such as 5G, big data, and artificial intelligence in participating countries, providing more opportunities for global South countries to engage in technological development [1][2] Group 2 - The "Open Science International Cooperation Initiative," jointly launched by China, Brazil, South Africa, and the African Union, aims to create an open, fair, and non-discriminatory global technological development environment [2] - Effective cooperation mechanisms, including technology transfer centers and youth scientist exchange programs, have been established between China and participating countries, transforming technological cooperation into benefits for people's livelihoods [2] - The future of "Belt and Road" technological cooperation is promising, with expectations to strengthen collaboration in areas such as food and energy security, artificial intelligence, and green development [2][3]

Core Points - The second "Belt and Road" Technology Exchange Conference opened in Chengdu, Sichuan, highlighting China's commitment to innovation and international cooperation in technology [2][4] - President Xi Jinping emphasized that the "Belt and Road" initiative is not just a slogan but a successful practice, aiming to build a technology innovation community [2][8] - The conference showcased various collaborative projects, including high-altitude cosmic ray observatories and joint laboratories in agriculture, renewable energy, and health [3][4][6] Group 1: Innovation and Collaboration - Innovation is identified as a key driver for development, with the "Belt and Road" initiative serving as a platform for collaborative innovation [2][4] - The LHAASO cosmic ray observatory, the highest and largest of its kind, is a significant achievement in international scientific collaboration [3] - Over 70 joint laboratories have been established in various fields, enhancing research capabilities and fostering international cooperation [4][6] Group 2: Economic and Social Impact - Projects like the Jakarta-Bandung high-speed railway and the China-Europe Railway Express are enhancing connectivity and economic development across regions [5][6] - The initiative aims to provide clean energy solutions and improve living standards in partner countries, demonstrating a commitment to sustainable development [4][5] - The conference highlighted the importance of balancing large-scale infrastructure projects with smaller, community-focused initiatives to enhance public welfare [5][6] Group 3: Future Directions - The conference released the "Chengdu Declaration," emphasizing the need for global cooperation in technology innovation to achieve higher levels of development [8][9] - Countries are encouraged to strengthen partnerships in research, technology transfer, and innovation to build a resilient and future-oriented innovation ecosystem [9][10] - The focus on inclusive growth, green technology, and digital transformation reflects a shared vision for a sustainable global development framework [8][9]

Core Viewpoint - A new biomimetic composite material inspired by nacre has been developed, showcasing unique color tunability, excellent wave transmission performance, lightweight, high strength, toughness, and outstanding impact resistance [1][2] Group 1: Material Properties - The newly developed nacre-like composite material exhibits a fracture toughness over three times that of commercial alumina ceramics and absorbs impact energy more than four times that of commercial alumina ceramics [2] - The material integrates mechanical robustness, camouflage functionality, and wave transmission capabilities, marking significant progress in multifunctional biomimetic structural materials [2] Group 2: Design Strategy - The research team introduced a dual oxide interface design strategy that enhances mechanical strength and toughness through the construction of mineral bridge structures between alumina micro-sheets [2] - The design also allows for controllable coloring by adjusting the chemical composition at the micro-sheet interfaces through solid-phase reactions [2] Group 3: Structural Inspiration - The inspiration for this research comes from the natural structure of nacre, which provides insights into achieving high mechanical strength while enabling camouflage effects in engineered materials [1][2]

Core Insights - The research conducted by the Qinghai University laboratory reveals the mechanisms by which rainbow trout adapt to chronic heat stress, which is critical for understanding the impacts of temperature changes on cold-water fish species [1][2] Group 1: Research Findings - Rainbow trout, a cold-water fish, show significant reductions in weight gain and feed intake under chronic heat stress, while feed conversion rates increase [1] - The study indicates that chronic heat stress leads to elevated expression of antioxidant-related genes in the liver, alongside increased oxidative stress and liver damage indicators, suggesting an activation of antioxidant defense mechanisms despite oxidative damage [1] - Structural remodeling occurs in the gill tissues of rainbow trout under chronic heat stress, with increased secondary gill lamella length and decreased inter-lamellar spacing and epithelial thickness [1] Group 2: Implications for Aquaculture - The adaptation mechanisms of rainbow trout to chronic heat stress, including accelerated liver glycogen breakdown and gut inflammation resistance, may lead to liver function impairment and decreased digestive capacity [2] - The findings provide a foundation for the development of high-temperature resistant feeds for cold-water fish species, which is essential for aquaculture sustainability [2]

该研究创新性地融合传统与非传统光子阻塞机制，首次提出"通用光子阻塞"新概念，在量子光学领 域取得突破，为制备高纯度、高亮度的理想单光子源提供了更具潜力的新方案。 在非经典光场中，反聚束光子效应尤为关键——该效应表现为光子倾向于以单粒子形式而非成簇出 现，这种特性使其成为量子信息处理、精密测量等前沿领域的核心资源。如何高效实现反聚束光子效 应，一直是国际量子光学研究的热点。 原标题：制备理想单光子源有了新方法 记者6月10日从上饶师范学院获悉，该校应用光学技术江西省重点实验室光量子传感方向（量子信 息交叉研究中心）副教授周彦辉团队联合东北师范大学物理学院副教授沈宏志、杭州师范大学物理学院 教授杨垂平，在《物理评论快报》在线发表了相关研究论文。 "'通用光子阻塞'的核心突破在于打破了单一技术路径的限制。"周彦辉解释，"这就像设计了一个更 智能的光子'交通关卡'。"研究团队巧妙地将两种现有光子阻塞机制的优势相结合，构建出全新的"通用 光子阻塞"理论框架。相较于单一机制，"通用光子阻塞"展现出更好的光子反聚束效果，能更有效地抑 制多光子同时发射，确保每次主要发射一个光子。 该研究的核心价值在于其强大的应用潜力。"通用 ...

原标题：青藏高原人群的"幽灵祖先"找到了 青藏高原人群是从哪里来的？他们基因里那个神秘的"幽灵祖先"到底是谁？长期以来，科学家没找 到直接线索。南亚语系族群最早出现在哪儿、又是怎么扩散开来的？科学家也一直争论不休。但是，最 新的研究为揭开这两个谜团提供了关键线索。 中国科学院古脊椎动物与古人类研究所、云南省文物考古研究所等单位的科研人员历经9年艰辛探 索，成功捕获、测序了云南地区17个遗址的127例距今7100年以来的古代人类基因组，破解了青藏高原 人群"幽灵祖先"之谜，并首次揭示南亚语系族群的遗传起源。相关研究论文近日在线发表于《科学》， 并作为亮点文章被推荐。 云南兴义遗址获新发现 青藏高原人群的遗传结构一直存在未解之谜。此前的研究表明，青藏高原人群约80%的遗传成分源 自9500年前—4000年前的中国北方人群，但剩余的20%来源不明，被学界称为"幽灵祖先"。这一遗传成 分的来源一直未能确定，备受学界关注。 位于云南省玉溪市通海县的兴义遗址发现的一个7100年前的个体，为解决上述问题带来了希望。该 个体的基因组中携带了一种此前未被识别的、深度分化的亚洲遗传成分。科研人员将该个体命名为"亚 洲基部兴义祖先 ...

Core Insights - The research reveals a convergent mechanism of echolocation in different mammalian species, providing new perspectives on the evolutionary origins of this complex behavior [1][2] - The study highlights the significance of non-coding regulatory regions in the convergent evolution of behaviors, challenging the traditional focus on protein-coding genes [2] Group 1: Research Findings - The study identifies 222 shared open chromatin regions in the hippocampal area of echolocating species, significantly higher than random expectations, indicating a complex gene regulatory network [1] - Traditional auditory-related genes are found to be abnormally active in the hippocampal regulatory networks of echolocating mammals, suggesting their role in spatial localization functions [2] Group 2: Methodology and Implications - The research employs innovative techniques such as chromatin accessibility sequencing, transcriptome sequencing, and transmission electron microscopy to compare the hippocampal gene regulatory features of various species [1] - The establishment of the Daluoshan pig-tailed mouse as a new model organism offers a valuable platform for further exploration of the neural mechanisms underlying echolocation [2]

Group 1 - The research team from Shanxi University and Hunan Normal University has made significant progress in the study of non-Hermitian systems and non-reciprocal quantum correlations, with findings published in Nature Photonics [1][2] - Chirality, the asymmetry of objects and their mirror images, plays a crucial role in various fields, including physics, chemistry, and materials engineering, and is a powerful tool for controlling light-matter interactions in quantum physics [1] - The study demonstrates a non-reciprocal quantum correlation induced by chirality, where quantum correlations appear when two beams of light with the same polarization travel in opposite directions through an atomic ensemble, but disappear when they travel in the same direction [1][2] Group 2 - The research further proves that by flipping the propagation direction of one beam while keeping the polarization consistent, quantum correlations can be established and eliminated between two channels [2] - The discovery of a directional control "switch" for quantum correlations opens new pathways for achieving unidirectional quantum effects, potentially advancing directed quantum networks and non-reciprocal quantum metrology [2]

Core Insights - The article discusses the potential of marine resources, particularly deep-sea aquaculture, to enhance food supply and address challenges in the industry [1][2] - It emphasizes the need for advanced technology and sustainable practices to optimize marine farming and improve resilience against environmental risks [3][4] Group 1: Marine Aquaculture Development - The deep-sea aquaculture sector faces challenges such as equipment durability and environmental risks, particularly from typhoons [3][4] - There is a call for scientific assessment and careful site selection for marine ranching to ensure sustainability and effectiveness [4] - Advanced equipment, such as gravity cages and specialized fishing vessels, is crucial for the success of deep-sea aquaculture [5][6] Group 2: Environmental Impact and Sustainability - High-density farming can lead to environmental issues like nutrient accumulation, necessitating innovative solutions to mitigate these effects [7][8] - The article advocates for a green development approach, focusing on ecological balance and resource efficiency in marine farming [8] Group 3: Aquatic Breeding Innovations - The development of high-quality aquatic breeds is essential for the success of deep-sea aquaculture, with a focus on self-sufficiency in key species [9][10] - Modern molecular breeding techniques are highlighted as a means to enhance breeding efficiency and produce disease-resistant varieties [10][11] Group 4: Seafood Processing and Market Integration - China's seafood processing sector is underdeveloped compared to global standards, with a need for increased processing rates and value addition [13][14] - Experts suggest enhancing cold chain logistics and developing integrated supply chains to reduce waste and improve market access for seafood products [14][15] Group 5: Cross-Industry Collaboration - The article proposes the integration of marine ranching with other industries, such as tourism and renewable energy, to create synergistic benefits [15]

Core Viewpoint - The Shenzhen Super Charging Station exemplifies "Shenzhen Speed" by significantly reducing electric vehicle charging time to just 20 minutes, compared to the typical one hour at regular charging stations [1]. Group 1: Technology and Infrastructure - The Super Charging Station is the first in the country to integrate "photovoltaic storage supercharging + vehicle-to-grid interaction + power harmony" technologies, enhancing the green travel experience for electric vehicle owners [1]. - It features 27 charging piles that can simultaneously serve 46 vehicles, including 4 ultra-fast charging piles with a maximum power of 600 kW, the highest in the nation, capable of charging a household vehicle to over 80% in just 10 minutes [1]. - The station is equipped with a 152 kW photovoltaic installation and a 200 kWh energy storage system, making it a pilot station for "green cars charging green electricity" in Shenzhen [2]. Group 2: Economic Benefits - The Super Charging Station allows electric vehicle owners to participate in vehicle-to-grid (V2G) interactions, enabling them to send electricity back to the grid. It has 22 V2G charging piles with a maximum discharge power of 2160 kW [2]. - During a nationwide V2G event in March, the station achieved a discharge volume of 13,000 kWh, sufficient to meet the daily electricity needs of 1,600 households. Participants earned 4 yuan for each kWh sent back to the grid, creating a profit margin of 3.6 yuan per kWh compared to the cost of charging during off-peak hours [2]. Group 3: Digital Integration - The charging piles at the station are integrated with the Power Harmony IoT operating system, enhancing information security and operational efficiency for different types of vehicles and charging piles [2][3]. - The Power Harmony system facilitates stable charging and precise control, enabling seamless communication between the grid and various types of vehicles and charging stations [3]. - The Super Charging Station represents a significant step in Shenzhen's goal to build a global digital energy pioneer city, with a fully established digital grid characterized by extensive connectivity and intelligent management [3].