那么，地球的"五脏六腑"真的在那场浩劫中被完全熔融均化了吗？研究团队将目光投向了代表地球深部 的特殊岩石。他们对全球20多个不同地区的样本进行了分析，其中来自格陵兰、加拿大和南非等地的古 老岩石，以及夏威夷海底火山和留尼汪岛火山岩的分析结果令人震惊：这些样本与地球地幔或任何陨石 的成分都对不上。样本普遍存在钾—40同位素轻微缺失，这与原始地球的独有特征相符。这意味着原始 地球的物质可能被保存至今，地球深部的一些区域奇迹般地未被45亿年的地质活动改变。 对钾—40同位素微小异常的高精度分析技术是这项研究的"头号功臣"。钾是地球上一种重要的挥发性元 素以及地球生命必需的营养元素。钾元素存在三种同位素，其中钾—40在钾元素中的天然占比极其微小 （仅有约0.01%），其同位素相对丰度对追踪行星组成物质在太阳系中的来源非常灵敏，因此测量技术 是研究的难点。成都理工大学研究员王达带领的研究团队采用了先进的热电离质谱技术，并与西安交通 大学合作，在自主研发的国产质谱仪器上实现了更高稳定性和灵敏度的测量，首次在地球样本中探测到 钾—40的同位素差异，它非常微小但"证据确凿"。 研究团队还利用数值模拟，还原了地球在大撞击前后的 ...

Core Viewpoint - The upcoming closure of Hainan on December 18, 2025, is intended to enhance openness rather than restrict it, transforming the entire island into a large free trade zone, surpassing the Shanghai Free Trade Zone in scale [1]. Tax Benefits - Hainan offers significant tax advantages, with corporate income tax reduced from 25% to 15% and personal income tax capped at 15%, potentially saving companies millions annually [3]. - The cost savings from relocating to Hainan could allow businesses to afford additional staff compared to the expenses in Shanghai [3]. Trade and Business Dynamics - Hainan's trade capabilities are developing, but it currently lags behind Shanghai, which handled offshore trade worth 90 billion in the previous year compared to Hainan's 10 billion [5]. - The financial services sector in Shanghai remains unmatched, with Hong Kong managing 80% of offshore RMB transactions, while Hainan is just beginning to establish its presence [5]. Dual Operations Strategy - Companies are increasingly adopting a dual operations strategy, utilizing Shanghai for research and headquarters while leveraging Hainan for export and processing [7]. - This approach allows businesses to maximize benefits from both locations, adapting to changing policies and market conditions [7].

12月19日，长沙北斗研究院总部基地项目进入竣工倒计时。目前，这座昵称"大脚丫"的科研基地外立面 已基本完成，进入装饰装修扫尾阶段，预计今年年底正式投入运营使用。该基地将进一步为"硬科技"研 发提供坚实支撑。 湖南日报全媒体记者 田超 摄 ...

Core Points - Hainan Free Trade Port has officially launched its full island closure, becoming a special customs supervision area with a policy characterized by "one line open, one line controlled, and free movement within the island" [1] - The first batch of "zero tariff" imported products, including 179,000 tons of petrochemical raw materials, has arrived at Yangpu Port, significantly reducing customs clearance time by nearly 4 hours [1][3] - The list of "zero tariff" goods has expanded to approximately 6,600 tax items, broadening the scope of beneficiaries [3] Customs and Trade Facilitation - To ensure smooth customs clearance for the first batch of goods post-closure, high-frequency scheduling and tailored service strategies have been implemented [3] - The first batch of "zero tariff" goods, including a set of imported scientific research equipment valued at 1 million yuan, has completed customs clearance at Sanya Phoenix Airport, saving over 180,000 yuan in procurement costs [5] - The processing and value-added internal sales tax exemption policy has been optimized, allowing products with over 30% value-added to enter the mainland market duty-free [9] Economic Impact and Future Prospects - The expansion of the "zero tariff" policy is expected to lower procurement costs for enterprises, enabling them to invest more in research and production, thereby enhancing innovation [7] - The closure marks the beginning of a new phase in the construction of Hainan Free Trade Port, with plans to continuously expand open fields and improve policy systems [14] - The Hainan Provincial Development and Reform Commission aims to promote foreign investment and enhance the convenience of foreign investment, striving to create a modern industrial system with Hainan characteristics [14]

近日，四川省政府办公厅印发《促进全社会加大研发投入工作方案》(以下简称《工作方案》)，明确了 未来促进全社会加大研发投入的总体目标、工作重点、政策举措和推进机制。 《工作方案》还提出财政资金奖补情形，建立研发投入工作统筹机制、重点单位联系服务机制、研发投 入统计监测制度、研发投入评价制度等，确保各项工作扎实推进。 为实现这一目标，《工作方案》将聚焦四川规模以上工业企业、规模以上服务业企业、高等级资质建筑 业企业、国有企业、高校、科研院所、医疗卫生机构等七类主体精准发力，加大研发投入。 《工作方案》提出，到2027年"政产学研用金"协同发力的多元化科技投入格局基本形成，全社会研发投 入强度达到2.5%。到2030年，科技创新投入规模稳步提高、结构不断优化，企业研发经费支出占比持 续提升，全社会研发投入强度达到2.8%。 ...

Group 1 - The core message emphasizes the need for original innovation and key technology breakthroughs, promoting the deep integration of technological and industrial innovation in Tianjin [1] - Tianjin is enhancing the construction of innovation parks and establishing collaborative platforms for education, technology, and talent to accelerate the transformation of scientific achievements [1] - The Tianjin University has over 3,700 research projects initiated annually, with a focus on transforming laboratory results into practical applications, leading to over 50 projects initiated for commercialization by 2025 [2] Group 2 - The establishment of the Haihe Laboratory for brain-machine interaction and human-machine integration, along with the Tiankai Higher Education Innovation Park, is aimed at connecting research with market needs and providing support in funding and policy interpretation [1][2] - The shift in research culture among Tianjin's scientists is towards application-oriented development, focusing on creating new products that serve society and improve livelihoods [2] - The Tianjin Science and Technology Bureau plans to enhance the levels of governance, finance, and business in innovation parks during the 14th Five-Year Plan, aiming to integrate universities, industries, and urban development [3]

本报讯 （记者袁传玺）天眼查工商信息显示，近日，沃顿科技（南京）有限公司成立，注册资本3亿元，经营范围包括建 设工程设计、建设工程施工、工程和技术研究和试验发展、生态环境材料制造等。股东信息显示，该公司由沃顿科技 （000920）全资持股。 （编辑 黄力） ...

Group 1 - The core idea of the news is the emphasis on enhancing the new type of national system to achieve breakthroughs in key core technologies across various fields, including integrated circuits and advanced materials [1][2][3] - The new type of national system is crucial for accelerating the establishment of a technology powerhouse in China, integrating government leadership with market mechanisms [1][5] - Experts from various sectors, including research institutions and enterprises, are providing suggestions on how to leverage this system for rapid technological advancements [1][2] Group 2 - The systematic approach of the new type of national system is highlighted through the successful implementation of the space science pilot project, which has created a closed-loop management system covering the entire cycle from planning to application [2][3] - The integration of scientific goals with engineering implementation has been achieved through innovative task systems, fostering a strong talent pool and enhancing the infrastructure for future projects [2][3] - The focus on original innovation and the encouragement of free exploration by scientists are essential for achieving significant theoretical breakthroughs and scientific discoveries [3][11] Group 3 - The case of the "Hualong One" nuclear power project illustrates the successful collaboration between private enterprises and state organizations under the new type of national system, leading to the development of advanced safety equipment [5][6] - The project faced challenges such as high technical requirements and funding issues, which were addressed through coordinated efforts among various stakeholders, showcasing the importance of collaborative innovation [6][5] - The new type of national system provides unprecedented strategic opportunities for private enterprises to participate in major technological projects, emphasizing their role in the national innovation framework [6][5] Group 4 - The aerospace sector is identified as a high-tech field that requires the full utilization of the advantages of the socialist system and a large-scale market to drive sustainable development [8][7] - The integration of traditional national aerospace capabilities with emerging commercial aerospace forces is essential for achieving significant advancements in the field [8][7] - The establishment of a new innovation development model that combines national guidance, local leadership, and market dominance is crucial for the aerospace industry's growth [8][7] Group 5 - The new type of national system is seen as a key mechanism for enhancing the level of technological self-reliance and self-improvement, focusing on mastering core technologies [10][9] - The successful development of ion membrane technology is presented as an example of how concentrated efforts can lead to significant advancements in industrial capabilities [10][9] - The emphasis on aligning scientific research with national needs is crucial for transforming laboratory breakthroughs into practical applications [10][11] Group 6 - The importance of strengthening the technology finance supply to support high-level technological self-reliance is highlighted, advocating for a shift towards knowledge value investment [12][13] - The role of state-owned financial institutions and government-guided funds is emphasized in driving the growth of strategic emerging industries [13][12] - The need for a well-functioning technology finance system that encourages investment in hard technology and facilitates the growth of innovative enterprises is underscored [13][12]

Core Insights - The Canadian government has launched the "Canada Global Influence Research Talent Program," committing $1.7 billion to attract up to 1,000 top international researchers over the coming years [1] - The initiative aims to enhance technological innovation, strengthen strategic industries, and ensure long-term economic security and competitiveness for Canada [1] Program Details - The "Canada Influence Research Chair" project has a 12-year budget of $1 billion to support universities and research institutions in recruiting world-class scholars, covering salaries and providing funding for experimental facilities and research platforms [1] - The "Canada Influence Emerging Leaders" project plans to invest $120 million over 12 years to attract early-career international researchers, injecting new ideas and innovative potential into Canadian research [1] - The "Canada Influence Research Infrastructure" fund will allocate $400 million over six years to build and improve research infrastructure, ensuring that newly recruited chair professors and core researchers have world-class working conditions [1] - The "Canada Influence Research Training Award" will provide $133.6 million over three years to support top international doctoral students and postdoctoral researchers to study and work in Canada [1] Context and Comparison - Prior to this initiative, top Canadian research institutions, such as the Toronto Academic Health Network and the University of Toronto, had already launched multi-million dollar recruitment plans targeting scientists affected by funding cuts in the U.S. [2] - The Canadian federal government has intensified its efforts, labeling this program as one of the largest talent recruitment initiatives globally, open to candidates from around the world, not just the U.S. [2] - The European Union is also actively seeking high-end research talent, having introduced a €500 million incentive program earlier this year to make Europe a "magnet for researchers" [2]

Group 1 - The core viewpoint of the article highlights that nine international technology cooperation projects have been selected as exemplary practices for sustainable development by the United Nations South-South Cooperation Office [1][2] Group 2 - The nine cooperation projects cover various fields including sustainable utilization of karst resources, medicinal resource chemistry, plant biodiversity conservation, intelligent identification of oil tea pests and diseases, water environment technology innovation, and innovation and entrepreneurship with intelligent detection systems [2] - The cooperating countries include Brunei, Cambodia, Indonesia, Vietnam, Pakistan, and Iran, showcasing a broad international collaboration [2] - Notably, three outstanding cooperation projects are conducted by the Karst Geology Research Institute of the Chinese Academy of Geological Sciences, leveraging the China-Slovenia Karst Geology "Belt and Road" Joint Laboratory, which serves as a national-level technology innovation platform [2] - The establishment of a monitoring station network for key karst areas and the development of monitoring technology standards are significant contributions to addressing resource and environmental challenges in karst regions [2] - The China-ASEAN Innovation and Entrepreneurship Competition, organized by the China-ASEAN Technology Transfer Center and other entities, has attracted participation from 752 teams and startups across 35 countries and regions since its launch in 2022 [2]