新人类胚胎样模型重现了器官和血液系统最初形成阶段。显微镜下观察到，这些结构在培养第2天就已 自组织形成外胚层、中胚层和内胚层，这是人体所有组织和器官发育的三大基础胚层。到第8天，模型 中出现了跳动的心脏细胞，这些细胞在真实胚胎中将最终发育为心脏。第13天，团队观察到明显的红色 血斑，进一步证实了功能性血细胞的生成。他们还验证了这些造血干细胞能够分化为多种血细胞类型， 包括关键的免疫细胞。 英国剑桥大学科学家用人类干细胞构建出"类血细胞"，这些三维胚胎样结构能够模拟人类早期发育的多 个关键阶段，包括血液干细胞的生成。这种"类血细胞"的结构具备自组织能力，发育约两周后开始产生 血液，在实验室中成功模拟了人类胎儿的血液发育过程。研究结果发表于最新一期《细胞报告》杂志。 团队表示，当培养皿中首次出现肉眼可见的血红色时，非常令人激动。这一新模型精确复现了人类胚胎 中造血系统的启动过程，揭示了血细胞在胚胎生长中自然形成的机制，为药物筛选、早期血液与免疫系 统发育研究，以及血液疾病的建模提供了强有力的工具。 尽管仍处于早期阶段，但在实验室中生产人类血细胞的能力，标志着再生医学迈出了关键一步，即利用 患者自身的细胞来修复或再 ...

10月15日上午，2025湾区半导体产业生态博览会（以下简称"湾芯展"）拉开帷幕，新凯来公司旗下启云 方公司发布两款拥有完全自主知识产权的国产电子工程EDA（电子设计自动化）设计软件。这一成果 展现了国产高端电子设计工业软件的能力，标志着该领域长期以来的技术空白被成功填补。 在10月10日举行的湾芯展新闻发布会上，深圳市发展和改革委员会主任郭子平曾留下悬念，预告新凯来 旗下各子公司将带来"意想不到的惊喜"。启云方的这一成果无疑是其中之一。国产EDA设计软件一直是 行业关注的焦点，此次发布的两款软件究竟有何亮点？这到底是一份怎样的惊喜？ 一问：EDA为什么如此重要？ EDA是芯片设计的核心工具链，被誉为"芯片之母"。其贯穿集成电路设计、制造、封测全流程，可将抽 象电路转化为可量产的芯片版图，其核心作用体现在对设计效率、复杂系统与先进工艺的突破性支撑。 "芯片装载到PCB电路板上，然后和电容、电阻、电感等一系列的电子元器件进行连接，才能在整个系 统层面实现完整应用功能。"启云方电子工程EDA BU总裁袁夷介绍，在这个过程中就需要应用电子工 程EDA工具进行规则设计。 "在半导体产业链中，设计与制造的深度融合是产出 ...

10月15日，记者走进通河县桦树村便民服务中心，宽大的液晶屏幕上显示着村内路口的监控画面。借 助"慧村管理平台"，村内多处重要区域都搭建了高清摄像头，监控画面可以通过移动网络实时回传。 近年来，哈尔滨移动发挥网络、技术、数据优势，着力提升乡村数智化水平。 透过一块屏幕可以看到什么？哈尔滨移动通河分公司助力桦树村、青山村打造的"慧村管理平台"可以给 出答案。 与传统广播相比，"云广播"不仅能进行现场喊话，能将文本、短信等内容直接转为广播，还能接入第三 方信息发布平台，并能够实现分层分级管理，自定义播放时间、播放区域，为村民带来政策、法律、农 业生产、农村生活等方面的新信息。更重要的是，"云广播"支持远程操控，通过手机，村干部能直接操 控广播，消息传递迅速了，也为完善农村应急体系建设提供了新路子。（记者朱虹 通讯员韩冰） 方寸屏幕包罗万象，以平台为纽带，实现了"上联政府，下联千家万户"。平台设置了随手拍、供需信 息、一卡通查询等便民服务模块，通过数字化的手段，群众只需要一个微信小程序就能足不出户地享受 到各类政务服务，同时也极大减轻了基层工作人员的负担，工作效率也得到显著提升。 乡村振兴除了要装满农民的"钱袋子" ...

晶体几乎无处不在，从电视屏幕、烟雾报警器到超声波设备和声呐系统，它们独特的光学和电学特性支 撑着现代科技的发展。但在传统的生长方法中，晶体往往在随机时间和位置生成，难以保证质量与一致 性，这一不确定性长期制约着高性能器件的制造。 为解决这一难题，团队借助超快激光技术，首次实现了在纳米尺度上"绘制"晶体。他们选择在实验中生 成卤化铅钙钛矿晶体，这是一类在LED、太阳能电池及医学成像中具有重要应用的材料。 美国密歇根州立大学团队发现了一种"绘制"晶体的新方法。这种全新的激光绘晶技术，可在指定时间和 位置"按需"生成晶体，为太阳能电池、LED照明及医学成像等领域提供更精准的材料制造手段。这一突 破性成果发表于最新一期《ACS Nano》杂志。 激光绘晶方法类似于用激光在金属或木材上雕刻图案，不仅能提升晶体制造的可控性，也为能源、电子 和量子技术等领域提供了新的研究手段。同时，也帮助化学家进一步理解晶体形成这一长期难解的过 程。 通过这种方法，团队可以让晶体在精确的时间和位置生长。他们能坐在显微镜前亲眼观看晶体诞生的第 一瞬间，并能控制它的成长方向。接下来，他们计划进一步使用多种颜色的激光"绘制"更加复杂的晶体 图案 ...

Core Viewpoint - The continuous rainfall in the Huanghuaihai region, particularly in Henan and Shandong, has led to increased risks of mold growth on corn, causing delays in harvesting and raising public concerns about the quality of corn in the market [1][2]. Group 1: Mold Risks and Detection - Corn in humid environments may develop various molds, but not all are harmful; toxic molds can be effectively controlled through professional methods [1]. - The presence of toxic molds requires specific conditions, and not all infected corn will exceed toxin limits [1]. - A three-step method to identify bad corn includes: 1. Visual inspection for color and texture changes 2. Smelling for musty or sour odors 3. Tactile examination for stickiness or powdery texture [1]. Group 2: Public Assurance and Quality Control - The corn currently being harvested in the Huanghuaihai region is primarily feed corn, which is different from fresh corn consumed by the public [2]. - Feed corn undergoes multiple inspections before entering production, ensuring that only compliant corn is used for livestock feed, alleviating public concerns [2]. - Consumers can safely consume fresh corn purchased through regular channels, as the risk of mold has been effectively managed with ongoing harvesting and drying operations [2].

研究中甚至捕捉到了两种奇特的"模式"：翻滚模式中，章鱼把身体缩成一团，后腕足在身下像传送带一 样依次推动，滚着前进，仿佛在海底打滚。"踩高跷"模式中，它会将后腕足笔直向下延伸，像撑杆一样 把整个身体抬离海底，然后一步步"走"起来。 最近，一项发表于《科学报告》的最新研究给出了答案：章鱼能让任意腕足完成任何任务，且还会"分 工"，用特定的腕足干特定的活。这听起来或许不稀奇，但在无脊椎动物中，这种被称为"功能特化"的 行为极为罕见，一般是灵长类动物专属。 这种八爪分工的策略，可能是章鱼在进化中形成的高效生存密码——前腕足和后腕足互不干扰，各司其 职，实现感知与行动既完美分离又高效协同，在深海的寂静舞台上，演绎出无脊椎生命中顶尖的智能与 优雅。 在深海，有一种生物被认为是海洋中智者的化身。它没有骨骼，却能灵活地攀爬、挖掘、伪装，甚 至还会"踩高跷"走路。它就是章鱼，动物界最令人惊叹的"多任务处理大师"。 数据显示，前面四条腕足的使用率高达64%，而后四条只占36%。这种偏好并非随机——前腕足更像 是"手"，常被用来探索环境、触摸物体、搜寻猎物；而后腕足则更像是"脚"，更多承担起移动身体的重 任。 长期以来，科学家一 ...

Core Insights - Shanxi Province is accelerating agricultural technology innovation and transformation, with recent events showcasing 8 market-potential technological achievements, totaling 5.7 million yuan in contracts, including a new apple variety valued at 2 million yuan [1] - The provincial government is actively promoting technology transfer as a bridge between scientific innovation and industrial development, focusing on key areas such as low-carbon energy transition and advanced manufacturing [2] - A new ecosystem for technology transfer is being established, integrating government, academia, research institutions, and financial entities to enhance the efficiency of technology commercialization [4][5] Group 1: Technology Transfer Events - Recent technology roadshows in Shanxi have successfully connected research outcomes with market needs, facilitating partnerships and funding opportunities for various projects [6][7] - The "first use, then pay" model was introduced to reduce risks associated with technology transfer, enhancing collaboration confidence among enterprises [8][9] Group 2: Collaboration and Partnerships - The events have attracted participation from universities, research institutes, and local enterprises, fostering a collaborative environment for technology application and commercialization [2][4] - Specific projects, such as the "intelligent reconstruction of industrial measurement and control networks," have already initiated preliminary cooperation agreements with key manufacturing enterprises [6] Group 3: Government Initiatives - The Shanxi Provincial Science and Technology Department is prioritizing technology transfer in its strategic initiatives, aiming to create a robust support system for innovation and industrial integration [5][9] - The government is focused on building a favorable ecosystem that encourages innovation and supports the transition of high-quality technological achievements from laboratories to production lines [9]

Group 1 - The total output value of the construction industry in Shaanxi Province is expected to exceed 1 trillion yuan in 2024, with the intelligent construction industry chain's output reaching 47.389 billion yuan, a year-on-year increase of 12.17% [1] - A working mechanism has been established to promote the intelligent construction and new-type building industrialization chain, which includes "chain leader coordination + special class promotion + chain master guidance + expert support" [1] - Regions such as Xi'an, Hanzhong, and Yulin have developed a "1+6+N" billion-level construction industry system and four characteristic sub-chains, effectively addressing bottlenecks in the industry chain [1] Group 2 - Shaanxi has included urgently needed technologies for intelligent construction in provincial major science and technology projects, enhancing data-driven approaches and forward-looking layouts to inject continuous momentum into industry transformation and upgrading [2] - Prefabricated buildings, as an important carrier of intelligent construction, have rapidly developed in Shaanxi, with new prefabricated building area reaching 9 million square meters, accounting for approximately 38% of new construction [2]

Core Insights - The article highlights the innovative "light-touch" construction method employed by China State Construction Engineering Corporation (CSCEC) to build a 100 MW photovoltaic project in the ecologically sensitive area of Liangshan, Sichuan, which minimizes environmental impact while maximizing efficiency [1][2]. Group 1: Construction Techniques - The "light-touch" construction method involves precise planning using Beidou positioning and drone remote sensing to determine the foundation points and installation paths for solar panel supports [2]. - Micro-pile technology is utilized for the solar panel supports, eliminating the need for large-scale concrete pouring, thus preventing excessive excavation and blind construction [2]. - The project employs existing terrain for access roads and incorporates drone transportation to minimize vehicle impact on the grassland [2]. Group 2: Environmental Impact - The "light-touch" approach has reduced on-site construction volume by over 70%, significantly lowering the environmental impact and preventing soil erosion [2]. - The construction method preserves the original topography of the plateau, allowing local wildlife, such as yaks, to coexist harmoniously with the solar installations [2]. Group 3: Future Implications - The successful implementation of the "light-touch" green construction model in various regions, including Sichuan, Yunnan, and Gansu, provides a replicable solution for green infrastructure in ecologically sensitive areas [2]. - The promotion of this construction model is expected to contribute to achieving China's dual carbon goals [3].

随着天气转凉，季节性过敏进入高发期，不少"过敏星人"出现眼睛红肿、打喷嚏、皮肤瘙痒等症 状。与此同时，网络上"益生菌能抗过敏"的说法热传，电商平台上主打"调节免疫力""改善过敏体 质"的"抗过敏"益生菌销量节节攀升。这类产品价格从几十元到数百元不等，部分甚至宣称"7天改善鼻 敏""3天改善肠道"。 那么，益生菌能否通过类似或其他方式抗过敏？ 胡启文认为，从理论层面来看，某些特定的益生菌菌株或许可以通过调节人体免疫系统、改善肠道 屏障功能等方式，间接发挥一定的抗过敏作用。"肠道是人体重要的免疫器官，肠道菌群平衡与免疫系 统正常运转密切相关，这是益生菌可能与过敏产生关联的核心逻辑。"他说。 不过，从实际研究来看，益生菌抗过敏机制尚未完全阐明，且缺乏足够的循证医学支持。陆军军医 大学基础医学院教授王莉表示，近年来，尽管针对益生菌与过敏的研究不断增多，但由于益生菌种类繁 多、过敏性疾病类型复杂、个体差异显著，相关研究结果并不一致。 王莉举例说，有的研究显示某些益生菌可以降低过敏性鼻炎患者打喷嚏的频率，但也有多项对照试 验表明益生菌对过敏症状的缓解作用微乎其微，且即使有效果，也需要长期服用才能显现，远非商家宣 称的"3 ...