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调控记忆的“魔法”会走进现实吗
Ke Ji Ri Bao· 2025-05-05 23:23
在小说《哈利·波特》的世界里,轻挥魔杖即可将记忆从脑中抽出,一句咒语便能抹去至亲存在的痕 迹。然而在现实世界中,记忆不是可储存的液体,也不是能轻易从人们脑海中删除的文件。 抹去记忆 要形成记忆,人们必须先经历某些事情,比如骑自行车、掉牙,或是与宠物嬉戏。随后,电流会在大脑 神经细胞(神经元)之间的连接处流动。人们对某种经历的体验越多,这些连接就越牢固。此后,随着 时间推移,这些连接也会逐渐减弱,从而导致遗忘。 但要让人完美记住或彻底遗忘某件事,这种能力目前还只是幻想。不过,美国《科学新闻》网站近日报 道,科研领域已有先行者开始探索调控记忆强度的可行路径,并在增强或抑制记忆方面取得了阶段性突 破。这些研究有望为阿尔茨海默病等记忆衰退疾病患者带来福音,同时也为创伤后应激障碍患者提供新 的治疗思路。 增强记忆 美国维克森林大学医学院神经科学家罗伯特·汉普森专注于记忆研究领域。他和团队发现,对人的大脑 施加微小电击,有助于人们形成更牢固的记忆。 在一项实验中,汉普森团队选取了17名癫痫患者作为研究对象。这些患者大脑中已植入了细如发丝的电 极,除了治疗癫痫,这些电极还能记录患者海马体(大脑中负责记忆的关键区域)中脑细胞 ...
普惠发动机缺陷事件揭示寡头格局风险
Di Yi Cai Jing· 2025-05-05 11:53
Core Insights - The Pratt & Whitney GTF engine defect incident is not merely a product quality issue but has sparked profound reflections on technological ethics, supplier responsibility, and industry development models [1][11] - The incident highlights the critical position of major suppliers in the aviation industry and the potential risks associated with heavy reliance on them [4][11] Summary by Sections Engine Defect Overview - The Pratt & Whitney GTF engine is a new generation of efficient aircraft engines favored for its fuel efficiency and environmental performance, primarily used in Airbus A320NEO series, Airbus A220 series, and Embraer E-Jets E2 series [2] - As of February 2025, there are 3,818 A320NEO series aircraft in service globally, with over 1,700 of them equipped with the GTF engine [2] - In July 2023, Raytheon Technologies, the parent company of Pratt & Whitney, announced that rare conditions in the powder metallurgy materials used for certain GTF engine parts could lead to accelerated wear and engine failures, posing flight safety risks [2] - Following the incident, Pratt & Whitney mandated inspections and repairs for the affected engines worldwide, with an estimated 350 A320NEO series aircraft expected to be grounded between 2024 and 2026 [2] Regulatory Response and Operational Impact - The FAA has issued multiple airworthiness directives (AD) regarding the PW1100G series engines, with the latest directive effective April 11, 2024, requiring ultrasonic inspections of specific components due to metal powder contamination issues [3] - As of mid-October 2024, 584 aircraft equipped with PW1100G engines have been grounded, leading to significant operational disruptions and financial pressures on airlines [3] Supplier's Critical Role - Pratt & Whitney is a major player in the global aircraft engine market, and the GTF engine defect incident underscores the industry's heavy reliance on key suppliers, revealing potential risks associated with this dependency [4][5] - The compensation provided by Pratt & Whitney for direct costs related to the engine defects does not cover the broader financial losses incurred by airlines, creating a complex dynamic where airlines must continue using Pratt & Whitney products to maintain operational stability [4][6] Industry Dynamics and Challenges - The aviation engine industry is characterized by high technical barriers, long R&D cycles, and significant capital investment, resulting in an oligopolistic market dominated by a few companies [5] - Airlines face limited options when selecting engine suppliers, making it challenging to switch from Pratt & Whitney to other manufacturers, especially given the scale of affected fleets [5][6] Ethical Considerations and Regulatory Recommendations - The incident raises questions about the pursuit of "absolute safety" in complex systems, emphasizing that while strict safety standards exist, inherent risks remain due to manufacturing complexities and material defects [7] - To prevent the misuse of the "too big to fail" phenomenon, regulatory bodies should enhance oversight of major suppliers, ensuring compliance with safety standards and encouraging suppliers to disclose potential risks [8] Implications for Chinese Aviation Industry - The GTF engine incident offers valuable lessons for China's aviation sector, emphasizing the importance of safety and reliability in technology development and the need for robust supply chain management [9][11] - Chinese airlines should increase their trust and willingness to use domestically produced aircraft, such as ARJ21 and C919, to foster the growth of the national aviation industry [9][10]
“朱雀玄武敕令”改名之争的背后
更名符合公序良俗,首先就是不以侵犯他人权益、有损外界观感为前提。比如,有些人想改的名字里有 非中文字符,显得很有"个性",却给别人识读姓名带来不小的麻烦,也很难进入身份证的数据库。再 如,有的家长对孩子期望很高,想给孩子起一个伟人的名字,这其实也不太妥当。暂不说这样的名字可 能会给孩子带来无形的压力与烦恼,也会让外界难以接受。 再者,名字作为一种文化符号,需要符合传统的姓名文化伦理。正如《论语》所言,"名不正则言不 顺",在传统文化秩序中,"正名"是一件十分重要的事情,它关乎一个人在社会上的自我定位与身份认 同。有了个体的清晰认知,才能形成稳定的群体文化秩序。从这个意义上讲,给孩子起名,或者孩子长 大之后去改名,都是个人或家庭的文化心理的体现。它不仅应该遵循个人内心的想法,还应该符合社会 文化层面的秩序,绝不只是个性的展示,更要具备社会属性。 最近,湖南桂阳00后男子小朱再次申请改成48个字的名字的话题,引发舆论场的热议。此前,他已经成 功申请改名"朱雀玄武敕令",但又申请更名为"周天紫微大帝"时却未被通过。改成48个字的名字,看起 来更"离谱",获得通过的可能性就更小了。他出生时名为朱云飞,但因为个人喜好的 ...
YOUNG财经招聘财经编辑数名
YOUNG财经 漾财经· 2025-05-01 11:15
【YOUNG财经——关注商业伦理】 YOUNG财经 招聘财经编辑数名 YOUNG财经从商业伦理视角关注商业世界,倡导帕累托最优的进化发展方式,支持市场公平和市场 效率,提倡第三方监督的力量。期待共赢而没有人受损的永续繁荣。关注绿色、社群和公司治理,倡 导包容、可持续发展理念。 岗位要求: 1、本科以上学历 2、对企业和上市公司感兴趣 3、有较强的职业精神 主要职责: 负责企业和上市公司调研、访谈、报告撰写等 工作地点: 北京西直门 五险一金,薪资面议 欢迎 发送简历至 youngcaijing@163.com 期待你的加入。 ■ ...
YOUNG财经招聘财经编辑数名
YOUNG财经 漾财经· 2025-04-30 11:14
YOUNG财经 招聘财经编辑数名 【YOUNG财经——关注商业伦理】 YOUNG财经从商业伦理视角关注商业世界,倡导帕累托最优的进化发展方式,支持市场公平和市场 效率,提倡第三方监督的力量。期待共赢而没有人受损的永续繁荣。关注绿色、社群和公司治理,倡 导包容、可持续发展理念。 岗位要求: 1、本科以上学历 2、对企业和上市公司感兴趣 3、有较强的职业精神 主要职责: 负责企业和上市公司调研、访谈、报告撰写等 工作地点: 北京西直门 五险一金,薪资面议 欢迎 发送简历至 youngcaijing@163.com 期待你的加入。 ■ ...
被曝把麻醉病人晾在手术台40分钟!还出轨多名女性,中日友好医院:解聘
21世纪经济报道· 2025-04-30 07:36
作 者丨韩利明 编 辑丨 季媛媛 图 源丨图虫 连日来,中日友好医院肖飞因一封举报信被卷入"婚外情及医德失范"的舆论漩涡,事件热度 持续攀升,引发社会各界对医疗行业伦理与规范的深刻讨论。事件背后的中日友好医院和北 京协和医学院也陆续进入公众的讨论范围。 回溯时间线,4月2 5日晚间,网上流传一封举报信,指控肖飞在婚姻存续期间出轨多人,且意 欲生下非婚子。同时,信中还显示, 在2 0 2 4年7月的一台手术中,肖飞作为手术医师,其出 轨对象、规培住院医师董某莹也参与其中,并在手术过程中与另一护士产生冲突。肖飞对该 护士大吼大叫,并丢下已经麻醉的病人,和董某莹一起离开手术室,长达4 0分钟后才返回手 术室完成手术。 以下文章来源于21新健康 ,作者韩利明 21新健康 . 21世纪传媒 · 公众号矩阵成员。 4月2 7日,中日友好医院发布《情况通报》称, "收到实名举报材料,反映胸外科副主任医师 肖某违反生活纪律和医德医风问题。经核查,举报材料反映的肖某个人问题基本属实。我院 根据相关规定,对肖某予以开除党籍处分,并解除聘用关系。" 不过,肖飞在接受媒体采访时直言,自己私生活有亏,"但公事上非要说我影响医疗安全,我 ...
当工薪族走向星巴克,传统工作形态瓦解的背后
Xin Lang Cai Jing· 2025-04-30 07:21
Core Viewpoint - The article discusses the contrasting perceptions of flexible work and the challenges faced by individuals in the gig economy, highlighting the tension between the romanticized notion of freedom and the underlying instability that often accompanies it [1][4][18]. Group 1: Public Sentiment on Flexible Work - A recent advertisement campaign featuring individuals embracing their "second life" through flexible work has sparked mixed reactions online, with some viewers interpreting it as a facade that masks the difficulties of living without a stable income [1][4]. - A survey conducted by Peking University and Zhilian Recruitment revealed that 66% of post-00s job seekers prefer remote work, while 76.4% are open to becoming flexible digital workers, indicating a strong desire for work freedom [5][6]. Group 2: The Reality of Gig Economy - Despite the appeal of flexible work, over 30% of job seekers still desire stable employment in state-owned enterprises, suggesting a significant portion of the workforce is not fully comfortable with the gig economy [5][6]. - The concept of "precarious workers" has emerged, highlighting that the freedom associated with gig work often comes with instability and is not always a voluntary choice, influenced by larger structural factors [6][18]. Group 3: Work Ethics and Stigma - The rise of "pretend to work" companies reflects a societal stigma against unemployment, where individuals feel pressured to maintain the appearance of being employed to avoid judgment from family and society [13][14]. - The article notes that work ethics have historically emphasized the importance of paid employment, leading to a negative perception of unemployment, which is often blamed on individual failure rather than structural issues [14][17]. Group 4: Psychological Impact of Work and Unemployment - The psychological burden of unemployment is illustrated through narratives of individuals who feel compelled to "pretend" to work, revealing the deep-seated fear and shame associated with job loss [16][17]. - The article discusses how the lack of alternative fulfilling activities outside of work can lead to a sense of emptiness and anxiety for those who are unemployed, further complicating their relationship with work [17][18].
YOUNG财经招聘财经编辑数名
YOUNG财经 漾财经· 2025-04-29 11:21
YOUNG财经 招聘财经编辑数名 【YOUNG财经——关注商业伦理】 YOUNG财经从商业伦理视角关注商业世界,倡导帕累托最优的进化发展方式,支持市场公平和市场 效率,提倡第三方监督的力量。期待共赢而没有人受损的永续繁荣。关注绿色、社群和公司治理,倡 导包容、可持续发展理念。 岗位要求: 1、本科以上学历 2、对企业和上市公司感兴趣 3、有较强的职业精神 主要职责: 负责企业和上市公司调研、访谈、报告撰写等 工作地点: 北京西直门 五险一金,薪资面议 欢迎 发送简历至 youngcaijing@163.com 期待你的加入。 ■ ...
YOUNG财经招聘财经编辑数名
YOUNG财经 漾财经· 2025-04-28 10:58
YOUNG财经 招聘财经编辑数名 【YOUNG财经——关注商业伦理】 YOUNG财经从商业伦理视角关注商业世界,倡导帕累托最优的进化发展方式,支持市场公平和市场 效率,提倡第三方监督的力量。期待共赢而没有人受损的永续繁荣。关注绿色、社群和公司治理,倡 导包容、可持续发展理念。 岗位要求: 1、本科以上学历 2、对企业和上市公司感兴趣 3、有较强的职业精神 主要职责: 负责企业和上市公司调研、访谈、报告撰写等 工作地点: 北京西直门 五险一金,薪资面议 欢迎 发送简历至 youngcaijing@163.com 期待你的加入。 ■ ...
国产AI情趣娃娃:有体温,会调情,女性用户不到1%
3 6 Ke· 2025-04-28 02:03
在广东省中山市的工厂里,初代国产AI情趣娃娃正在整装待发,飞向全世界各地的买家。 这些娃娃拥有长期记忆,可以记住你随口说出的喜好,也会关照你难以启齿的怪癖;她们拥有近乎人类的逼真身体,凸起的血管、微小的毛孔、眼角的脂 肪粒…… 硅胶皮肤下的发热丝,让拥抱都有了温度。 国产AI娃娃的价格仅为欧美同类产品的1/5,距离普通消费者并不遥远/图:Irontech Doll 工作人员为我们示范加入AI对话功能的情趣娃娃 3月底,一条摄制组来到广东省中山市,走访了两家头部的情趣娃娃厂商。 随着近两年ChatGPT、DeepSeek等AI技术的突飞猛进,这些硅胶娃娃也正在经历一场悄无声息的革命:从冷冰冰的"生理工具"进化为"情感伴侣"。 只是,这个愈发庞大的消费群体中,女性用户占比极低,不足1%。 而人类,也许正在面临一个"黑镜"时刻: 中山市金三玩美的展厅之一 春节过后,这家位于广东省中山市的情趣娃娃工厂,每天都要接待数十波客户。面对工作人员"摸摸看"的热情邀约,大多数的男性客人都显得十分矜持, 只敢触摸娃娃的手部——来维持真人社交中的"礼貌距离"。有娃娃因为握手太过频繁,被搓掉了精致的法式美甲。 比起有缺陷但真实的人类 ...