Huan Qiu Wang Zi Xun

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科学家发现冰草基因可提高小麦产量
Huan Qiu Wang Zi Xun· 2025-07-23 02:10
在国家重点研发计划、国家自然科学基金等项目的支持下,小麦大麦优异种质资源发掘与创新团队在冰 草中鉴定到一个决定穗发育的关键基因AcRR1。随后,科研人员在小麦中异源表达该基因,发现可显著 增加植株的穗粒数,同时对小麦粒重等农艺性状没有任何影响。田间试验显示,相对于对照品种,表达 该基因后的小麦产量可提升9.7%至12.3%。团队进一步研究发现,该基因可以通过调控小麦小花发育、 开花相关基因的表达和幼穗细胞分裂素积累来提高穗粒数,并能缩短其需要经历的长时间低温环境诱导 周期,促进早抽穗,进而提高小麦产量并使其早熟。 韩海明表示,该研究成果为通过导入外源基因来提高小麦产量提供了理论基础和新思路。 来源:光明网-《光明日报》 【瞧!我们的前沿科技】 光明日报北京7月22日电(记者杨舒 通讯员田浩园)近日,中国农业科学院作物科学研究所小麦大麦优 异种质资源发掘与创新团队在一种小麦野生近缘种——冰草中鉴定出一个可调控穗粒数的关键基因 AcRR1,并解析该基因在小麦中通过正向调控花的发育和抽穗期来提高小麦产量的分子机制。相关研究 成果于日前发表在国际学术期刊《自然通讯》上。 中国农业科学院作物科学研究所副研究员韩海明介绍 ...
美媒:中国电动汽车产业为何领先
Huan Qiu Wang Zi Xun· 2025-07-22 22:59
Group 1 - China is investing billions to boost domestic oil production and develop the electric vehicle (EV) industry to reduce reliance on imported oil and enhance national security [1][2] - In 2022, over 40% of passenger cars sold in China were new energy vehicles, indicating a significant shift towards EVs [1] - China's state-owned oil company, China National Petroleum Corporation, reported capital expenditures of approximately $38 billion, comparable to the total of ExxonMobil and Chevron [1] Group 2 - The Chinese government is implementing measures to support the nascent EV industry, including subsidies for public charging infrastructure and requirements for new residential buildings to install charging stations [2] - As of May 2023, China has over 14.4 million charging interfaces, significantly outpacing the United States, which has around 230,000 public and private charging stations [2] - By the end of 2023, over 80% of urban buses in China are expected to be fully electric or hybrid [2] Group 3 - Chinese EV factories are becoming symbols of manufacturing strength, with one manufacturer automating the entire production process using over 800 robots [3] - A Chinese electric vehicle boasts a range of approximately 700 kilometers, surpassing the average range of American electric vehicles by about 300 kilometers [3] - In contrast, the growth rate of EV sales in the U.S. is slower, with electric and hybrid vehicles increasing from 12% to 20% of light vehicle sales from early 2022 to the end of the year [3]
美媒:押注中国经济受挫,他们站错队了
Huan Qiu Wang Zi Xun· 2025-07-22 22:44
Group 1 - The article discusses how Trump's efforts to suppress China's global economic influence are facing unexpected challenges, as Chinese large-cap stocks are outperforming U.S. markets [1] - As of July 21, the iShares China Large-Cap ETF has increased by 25% this year, significantly outperforming the S&P 500 ETF, which has only risen by 8% [1] - The narrative that Chinese stocks would be adversely affected by Western pressures is being challenged by their strong performance, indicating resilience against Trump's policies [1] Group 2 - Chinese companies are projected to significantly outperform the "Big Tech" companies in the U.S. by 2025, with seven major Chinese firms expected to lead this growth [2] - China's GDP growth for the first half of 2025 is reported at 5.3%, exceeding expectations and indicating strong economic performance [2] - The demand for electric vehicles, robust GDP growth, and significant valuation gaps are contributing to the unexpected strength of Chinese stocks [2]
缙链山海·云路共生——华为(缙云)数字经济赋能中心正式揭牌
Huan Qiu Wang Zi Xun· 2025-07-22 07:56
来源:环球网 7月20日,"缙链山海·云路共生——山区智造生态领航大会"在丽水缙云召开。会上,华为(缙云)数字 经济赋能中心正式揭牌,并进行了华为与缙云首批数字化改造意向项目集中签约,标志着丽水山区制造 产业智能化转型迈入新阶段。 丽水市副市长周和平致辞 丽水市副市长周和平在欢迎辞中表示,此次大会的召开既是响应国家制造业高质量发展战略的具体实 践,更是破解山区产业升级瓶颈的关键举措,必将为缙云打造"山区智造高地"提供强大助力,也必将为 丽水奋力推进跨越式高质量发展建设共同富裕示范区汇聚更多动能。衷心期盼我们以此次大会为新起 点,继续秉持"山海同心"的理念,共同书写合作新篇章。市委、市政府将始终当好"服务员"和"护航 丽水市委副书记、市长朱林森出席会议 员",以最优政策、最佳服务、最好营商环境,为华为在丽水发展提供全流程保障,为广大企业家创新 立业保驾护航。 华为董事、首席供应官应为民讲话 华为董事、首席供应官应为民进行讲话并表示,华为将以赋能中心为支点,全面助力缙云构建山区制造 高地新生态。携手华为生态伙伴,积极推动华为科技创新能力与本地产业链、服务链高效融合,推动数 字技术与实体产业深度融合。 缙云县委书记 ...
新技术为心脏移植供体短缺解困
Huan Qiu Wang Zi Xun· 2025-07-22 07:16
Core Insights - Recent studies published in the New England Journal of Medicine highlight significant breakthroughs in low-cost cardiac resuscitation and preservation techniques developed by American surgical teams, addressing the organ donor shortage issue for transplants [1][2] Group 1: Cardiac Resuscitation Technology - Duke University team has developed an extracorporeal cardiac resuscitation system that pumps oxygenated blood into the aorta, successfully reviving a deceased infant's heart for transplantation into another infant, with normal heart function observed post-surgery [1] - The system was first validated in pig models before achieving its first human transplant this year, marking a significant advancement in pediatric heart transplantation [1] Group 2: Cardiac Preservation Technology - Vanderbilt University team has created a cardiac preservation technique that involves injecting a cooling oxygenated solution into the heart, allowing it to enter a "relaxed hibernation" state before transplantation, with positive outcomes observed in adult recipients [2] - Initial results show stable heart function without rejection in the first three adult recipients after six months, with subsequent surgeries yielding similarly positive results, indicating applicability for both adults and children [2] Group 3: Ethical and Technical Implications - These innovations overcome ethical and technical limitations associated with traditional organ procurement methods, providing critical support for expanding the donor pool in the field of organ transplantation [2]
“区块链+公证”,国际化知识产权保护有新招
Huan Qiu Wang Zi Xun· 2025-07-22 07:03
来源:中国新闻网 中新网三亚7月22日电 (记者 谢雁冰)国际化赛事中参赛选手的数量与区块链技术相关?日前,记者跟随 司法部采访组走进三亚市凤凰公证处,了解"区块链+公证"助力国际化知识产权保护的故事。 传统的知识产权保护往往采用"事后救济"模式,即在侵权行为发生后通过法律途径寻求补救。对于国际 设计师而言,这种模式风险过高、成本过大。经赛事组委会邀请,凤凰公证处研究提出"事前预防"方 案,采取"投稿即存证"的服务模式,消除设计师的担忧。 "设计师在赛事官网投稿的同时,可以看到官网上区块链存证平台的链接入口,点击链接即可存证。区 块链技术的核心特点是去中心化、不可篡改,日后设计师如果遇到侵权问题,我们可以出具公证书,这 样就把他们最担心的事消除了。"徐春雷说。 凤凰公证研究院执行院长曹英俊介绍说,"我们为每件作品出具中英双语电子存证证书,满足国际赛事 的知识产权保护需求"。 徐春雷表示,通过采用"法律信用+先进科技"固证存证,极大地增强了外国设计师投稿的信任度,效果 立竿见影。短短几天内,赛事组委会收到了来自英国、意大利、荷兰、德国、塞浦路斯、黎巴嫩、土耳 其等国家和地区参赛者的作品。 "通过全流程、全链条的 ...
AI智能交互平台、智能机器人……这些新举措打造“便利来华第一站”
Huan Qiu Wang Zi Xun· 2025-07-22 06:41
Core Viewpoint - The article highlights the significant increase in foreign visitors to China due to the relaxation of entry visa policies, with a 30.2% year-on-year rise in foreign arrivals in the first half of the year, totaling 38.05 million people [1]. Group 1: Beijing's Entry Measures - Beijing has implemented various measures at its airports to enhance the entry experience for foreign travelers, including a "double-row inspection" model that improves processing efficiency by approximately 30% during peak hours [1][5]. - The Beijing border inspection station has optimized 11 signage locations and added over 40 card-filling stations to streamline the entry process for foreign visitors [3]. - New temporary entry permit channels have been established, increasing the efficiency of issuing temporary entry permits by 60% through a "one-click" verification process [5]. Group 2: Technological Innovations - The use of intelligent humanoid robots at Hangzhou Xiaoshan International Airport has expedited the entry process and provided assistance to travelers, enhancing the overall experience [8][9]. - Hangzhou's border inspection station has introduced a self-service terminal for foreign entry registration, allowing travelers to complete the process in seconds via online submissions, with over 86,000 users benefiting from this service by mid-July [13]. Group 3: Guangzhou's Unique Features - Guangzhou Baiyun Airport recorded over 8.4 million inbound and outbound passengers in the first half of the year, with a notable increase in foreign visitors due to the 137th Canton Fair [14]. - The Guangzhou border inspection station has implemented 15 convenience measures, including dedicated channels for fair participants, serving over 367,000 exhibitors efficiently [14]. - The city has also deployed AI interactive platforms and AR guidance systems at its ports to enhance the travel experience, with over 1.5 million foreign visitors recorded, a 40% increase year-on-year [18].
为何苹果在AI上进展缓慢?外媒:是一种战略性谨慎,慢工出细活
Huan Qiu Wang Zi Xun· 2025-07-22 05:31
Core Viewpoint - Apple is adopting a relatively slow and cautious approach to its AI strategy compared to other tech giants, which has sparked discussions and concerns about its competitiveness in the AI space [1][3]. Group 1: AI Strategy and Development - Apple plans to fully roll out its "Apple Intelligence" feature by 2026, which is significantly later than competitors like OpenAI and Google, who have already launched advanced AI tools [3]. - The initial version of Apple Intelligence will be available to a limited number of users in the U.S. on beta devices, with broader access not expected until 2026 [3]. - Apple's cautious approach may be a strategic advantage, as it allows the company to avoid the pitfalls faced by competitors who have rushed to release AI tools that often contain errors and inconsistencies [4]. Group 2: Market Comparison and Consumer Sentiment - Competitors such as Microsoft and OpenAI have faced criticism for their AI tools, which have been reported to provide incorrect answers and misleading information [4]. - Consumers have expressed support for Apple's decision to delay AI innovations, suggesting that current AI technology is not yet mature enough [4]. - Apple's historical strategy of entering markets later but establishing industry standards, as seen with smartwatches and tablets, may be reflected in its current AI approach [4]. Group 3: Risks and Future Considerations - There is a risk that Apple may miss out on the AI transition if tools become reliable and practical before its offerings are ready [5]. - As of now, the market's AI tools are still working on accuracy and consistency, indicating that Apple may be waiting for a more stable environment before launching its products [5].
我国研发的新型荧光探针分子可实现骨骼“发光”成像
Huan Qiu Wang Zi Xun· 2025-07-22 05:19
研究团队在传统的菁类染料基础上引入强电子给体,显著增强了分子内部的电荷转移能力,使得分子在 激发态中能够同时实现"局域激发"与"电荷转移",将发射波长成功延伸至近红外二区波段,实现了近红 外二区的荧光发射。这种新型荧光探针分子不仅具备强荧光和长波长发射特性,还具有深组织穿透能 力。 据介绍,在实验中,研究团队将这种荧光分子注射到小鼠体内后发现,该分子会迅速聚集在骨组织中, 尤其是关节和脊柱区域。在荧光成像仪下,小鼠的全身骨骼网络轮廓清晰可见,仿佛给骨头"开了灯"。 这种成像方式不仅避免了传统X光或CT可能带来的电离辐射风险,还能动态观察骨骼代谢过程和骨质疏 松等疾病的演变过程。 传统荧光探针在生物组织中的穿透能力有限,难以清晰显示深层组织。为突破这一瓶颈,研究团队转向 使用波长900nm–1700nm的近红外二区光,这种光能更有效地穿透生物组织,减少背景干扰,从而获得 更清晰的图像。然而,获得能在900nm以上发射荧光的分子在化学合成和分子设计上极具挑战性。 来源:环球网 【环球网科技综合报道】7月22日消息,根据"中科院之声"官方信息,中国科学院化学研究所研究团队 近日成功设计出具有长波长特性的新型荧光探针 ...
人工智能如何优化社保经办管理服务?人社部回应
Huan Qiu Wang Zi Xun· 2025-07-22 05:12
来源:中国新闻网 智审就是智能审核,增强管理效能。围绕重点事项和高频业务,引入"社保数字员工",利用AI和流程自 动化等技术预制校验规则,实现精准判断。代替人工操作,减少了大量重复性劳动,破解了业务量激增 与基层人力不足的矛盾。比如,山东实现对工伤保险医疗费用明细的智能审核,人工智能辅助验证费用 的合理性、审核效率和准确度都大幅提高。 智控就是智能防控,防范社会保险基金风险。运用大数据、人工智能等技术实现全流程、全链条智能化 风险防控,打造基金安全管理纵深防御体系,守护好老百姓的每一分养老钱和保命钱。比如,河南优化 管控规则,构建智能风控闭环体系,从源头上提升了基金安全的防护等级,同时,我们推动加强跨部门 数据比对,不断丰富规则库,常态化开展疑点数据筛查,严肃查处侵占挪用、欺诈骗保等违法行为。 中新网7月22日电 人力资源和社会保障部22日举行2025年二季度新闻发布会,介绍2025年上半年人力资 源和社会保障工作进展情况。 下一步,人社部将及时跟进人工智能发展趋势,突出应用导向,建设全险种、全业务、全链条的社会保 险经办智能化场景,让人民群众享受到更好更优的公共服务。 有记者提问,在应用人工智能技术、优化社 ...