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摆渡人

一 | 胶质母细胞瘤是一种侵略性的癌症，五年内的存活率只有5%。它的治疗方法通常是通过手术切除肿瘤，然后进行放疗或化疗来清除任何剩余的细胞。不幸的是，这种癌症经常以对这些治疗有抵抗力的形式复发。但在一项新研究中，斯坦福大学的科学家们开发了一种创伤性较小的方法来治疗脑瘤，在小鼠的测试中，这种方法大大增加了生存时间。只需每天进行15分钟的治疗，持续15天，甚至在小鼠只是做他们平常的事情的时候。

二 | 该技术是在一种新兴的治疗各种类型癌症的方法上发挥作用，该方法涉及将纳米粒子注入肿瘤，然后触发它们升温。触发器可以采取电磁场、超声波或光的形式，由于癌细胞对热量比健康细胞更敏感，这可以在对周围组织伤害最小的情况下杀死它们。斯坦福大学的新设备被设计为植入皮肤和颅骨之间，并在开启时发出红外光。 China's growth in exports is being reshaped by a structural upgrade in mechanical and electrical products, with economists and exporters saying that high-tech, green and high-value goods are emerging as new engines of growth amid rising global trade barriers and supply chain uncertainties. They said that demand for artificial intelligence hardware, advanced manufacturing products and tech-intensive green goods, including AI servers, 3D printers, industrial robots and lithium batteries, is likely to remain strong this year, as Chinese manufacturers continue moving up the value chain and strengthening their competitiveness in global markets. According to data released by the General Administration of Customs, China's foreign trade grew by 17.3 percent year-on-year to reach 30.13 trillion yuan ($4.5 trillion) in the first seven months of 2026. While exports rose 14 percent year-on-year to 17.44 trillion yuan, imports surged 22 percent year-on-year to 12.69 trillion yuan, the data revealed. Sheana Yue, senior Asia economist at British think tank Oxford Economics, said that strong electronics and machinery exports, coupled with rising imports of industrial inputs, suggest that AI and electrification would remain key forces shaping global manufacturing. "China's competitiveness in AI hardware, electric vehicles and other high-value products will allow it to continue gaining global export market share," she said, warning that persistent disruption in the Middle East would keep energy and transport costs elevated. Latest customs data showed that in the first seven months, exports of mechanical and electrical products reached 11.12 trillion yuan, surging 21.2 percent year-on-year and accounting for 63.8 percent of China's total exports. The shift toward a higher-quality and more sustainable trade structure also aligns with China's policy priorities. A meeting of the Political Bureau of the Communist Party of China Central Committee in late July called for efforts to promote more balanced trade growth and expand mutually beneficial international economic and trade cooperation. Jiang Ping, a professor of foreign trade at the Beijing-based University of International Business and Economics, said that China's faster import growth reflected recovering domestic demand, with stronger consumption, industrial activity and investment suggesting that the economy was gaining momentum and pro-growth policies were taking effect. Marc Ostwald, chief economist at the London-based ADM Investor Services International, said that China's external trade has remained resilient this year, with trade links with Europe, Africa, the Middle East and South America continuing to expand. Meanwhile, China's trade with the United States has also shown signs of improvement. In the first seven months, two-way trade declined 1.6 percent year-on-year, narrowing from a 3.6 percent decline in the first half, customs data showed. In July alone, China-US trade increased 10.8 percent year-on-year, marking the fourth consecutive month of growth. Gao Shiwang, spokesperson for the China Chamber of Commerce for Import and Export of Machinery and Electronic Products in Beijing, said that high-tech and high-value-added products are more resilient to external shocks, supported by stronger demand, technological advantages and customer loyalty. "Compared with lower-end goods, they are better positioned to withstand market volatility and trade frictions," said Gao. With power grids undergoing upgrades in many parts of the world, Qingdao Qingdian Transformer Co, a power transformer manufacturer in Qingdao, Shandong province, saw its exports grow by 100 percent year-on-year to reach 120 million yuan between January and July, statistics from Qingdao Customs showed. "Foreign customers once chose Chinese transformers mainly for price advantages, but quality, technology and delivery efficiency have become key strengths," said Li Changchun, chairman of the company. GreaTech Substrates Co, a manufacturer of packaging substrates headquartered in Guangzhou, Guangdong province, has deepened its integration into global semiconductor supply chains through overseas expansion, according to information released by Huangpu Customs in Guangdong. "We have established stable supply channels in Southeast Asia," said Wu Jianhang, the company's head of customs affairs. Wu said the company's high-density, ultrathin printed circuit boards are shipped to its clients' plants in Southeast Asia for assembly and integration before becoming components in advanced chips supplied to global markets. In Northeast China's Liaoning province, exports of mechanical and electrical products also amounted to 140.51 billion yuan in the first seven months, up 18.6 percent year-on-year, accounting for 53.3 percent of the province's total exports during the period, data from Shenyang Customs showed. 。由黄金制成的星形纳米粒子通过颅骨上的一个小孔被注入脑瘤，来自该设备的红外光将它们加热到5°C之多。经过几轮这样的治疗，癌细胞被成功杀死。该团队说，调整红外能量的功率以及光的波长可以使他们针对不同大小的肿瘤和大脑内的不同位置。在对小鼠的测试中，科学家们发现这种治疗方法能够减少大脑中的癌细胞，并大大延长动物的寿命--平均来说，是未接受治疗的小鼠生存时间的三倍。当化疗被添加到这个组合中时，小鼠的存活时间甚至更长。