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China's cooperation powers green future in Global South_我的网站

A |     Nation deepening partnerships through major energy projects in Latin America    As the world's transition toward more sustainable development accelerates, China and Latin America are embracing broader and deeper energy cooperation, leveraging cutting-edge technological innovations to power a green future for the Global South.     From State Grid Corp of China's Belo Monte Ultra High Voltage Direct Current Phase II transmission line in Brazil, to China Three Gorges Corp's comprehensive digital modernization of Brazil's legacy Jupia and Ilha Solteira hydropower stations, and the Cauchari solar project in Argentina, jointly undertaken by Power Construction Corp of China and Shanghai Electric Power Construction Co, China and Latin America are jointly setting new benchmarks for cross-border clean energy integration.    These flagship projects go beyond traditional capital investment, representing a deeper leverage of China's technological standards and management expertise. By upgrading legacy infrastructure, Chinese enterprises are powering Latin America's green transition for more secure regional grid stability.    This strategic momentum is guided by top-level diplomacy and shared visions.    While addressing the opening ceremony of the fourth ministerial meeting of the China-CELAC (Community of Latin American and Caribbean States) Forum last year, President Xi Jinping noted that by adapting to the overriding trend of economic globalization, China and Latin America have continuously deepened pragmatic cooperation in fields including trade, investment and infrastructure construction.    Xi emphasized that both sides should strengthen the alignment of development strategies and advance high-quality Belt and Road cooperation, calling for efforts to deepen cooperation in traditional areas such as energy and minerals, while expanding cooperation in emerging sectors including clean energy.    Such top-level commitment builds on a long-standing strategic alignment. As President Xi pointed out at the China-Latin American and Caribbean Countries Leaders' Meeting in 2014, "China and Latin America are highly complementary in economy and closely aligned in development strategies, granting us natural advantages in strengthening cooperation".    With such a strategic blueprint in sight, top Chinese energy regulators have emphasized the pivotal role of this cross-border synergy.    Ren Jingdong, deputy director of the National Energy Administration, said that energy collaboration is a crucial component of pragmatic cooperation between China and Latin America, achieving remarkable results.    "As China and Latin American countries have actively promoted energy transition and the development of renewables in recent years, new energy cooperation has emerged as a new highlight and a fresh driver for China-Latin America energy synergy," Ren said.    Guided by these high-level consensuses, Chinese enterprises have delivered monumental infrastructure breakthroughs on the ground.    Brazil has grappled for decades with a severe structural challenge. While its northern Amazon basin boasts abundant hydroelectric resources, the vast majority of its industrial and residential power demand is concentrated in the southeast. The 2,534-kilometer Belo Monte Phase II project, independently invested, constructed and operated by State Grid Corp of China under a 30-year concession agreement, bridges this divide. As a vital "green artery", it transmits massive volumes of hydropower directly to metropolitan load centers like Rio de Janeiro.    "The megaproject ensures a highly stable and reliable power supply for Brazil's core economic regions, successfully resolving the nation's developmental bottleneck of spatial energy mismatch," said Ye Xiaoning, a senior engineer at the State Grid Energy Research Institute.    Ye emphasized that the project establishes a global paradigm for cross-regional clean energy transmission, proving the safety, maturity and global applicability of China's ultra-high-voltage grid technologies.    Beyond Brazil, China's clean energy footprint is having a transformative impact across other extreme terrains in South America. In Argentina, the Cauchari solar project stands as one of South America's largest single photovoltaic power stations, and is the world's highest-altitude solar park.    Situated over 4,000 meters above sea level in the Andes Mountains, the 315-megawatt complex features more than 1.2 million solar panels. The landmark installation has ended Jujuy province's long-standing reliance on power transmitted from other provinces, achieving local energy self-sufficiency.    Furthermore, China's unparalleled expertise in hydropower operation has breathed new life into Brazil's legacy energy assets. Through a landmark $3.7 billion transaction establishing a 30-year concession, CTG Brasil officially took over the operation of the Jupia and Ilha Solteira hydropower stations, which feature a combined capacity of nearly 5 million kilowatts and meet the electricity needs of over 6 million people annually.    Rather than merely managing the aging infrastructure, CTG initiated a monumental technical overhaul. By upgrading mechanical equipment that had operated for nearly half a century into fully digital and intelligent monitoring systems across 12 generating units, CTG successfully performed a "heart transplant" on the legacy power hubs.    Industry observers said these milestone projects are just the beginning. As more Latin American nations accelerate their ecological transition, Chinese enterprises are poised to deepen their engagement through localized manufacturing, joint research and green financing under the framework of high-quality Belt and Road cooperation.    As this Sino-Latin American energy synergy continues to unfold, it proves that China's mature grid and generation solutions are essential enablers for emerging economies seeking to decarbonize at affordable costs while maintaining power stability and self-sufficiency, said Ye.    "Together, China and Latin America are actively charting a shared, sustainable course for the global energy revolution and setting a powerful example for Global South cooperation," he said.                    。    阿尔茨海默病（AD）是一种使人衰弱的渐进性疾病，开始时是轻微的记忆丧失，慢慢地破坏了认知功能和记忆。它目前没有治愈方法，预计到2050年将影响全球1亿多人。

B | 在美国，根据国家老龄化研究所的数据，AD是老年人痴呆的主要原因，也是第七大最常见的死亡原因。

C | 正在进行的阿尔茨海默氏症研究集中在两个关键的神经毒性蛋白上：淀粉样β（Aβ）和tau。尽管这些蛋白质已被证明与AD有关，但Aβ和tau的水平并不能持续解释或与一些疾病患者的认知能力下降的严重程度相关。作为麻省总医院布里格姆医疗系统的创始成员之一，布里格姆妇女医院的研究人员着手确定其他可能直接参与AD基本方面的蛋白质，如突触损失和神经变性。他们将实验室的神经元暴露在大约40人的大脑提取物中，这些人要么患有AD，要么在Aβ和tau水平较高的情况下受到保护，要么在大脑中很少或没有Aβ和tau时受到保护。

D | 科学家们发现并验证了神经节苷脂GM2激活剂（GM2A）是一种能够减少神经元发射并诱发神经元完整性丧失的蛋白质。这些蛋白质的特征可能有助于AD的病因、疾病的进展，或两者都有。高级作者、神经学系的Tracy Young-Pearse博士说："我们的数据有助于确定一种可能与阿尔茨海默病的发病机制有关的新的和潜在的重要蛋白质。有趣的是，GM2A以前被认为是一种与Tay-Sachs病非常相似的溶酶体储存障碍的致病因素，Tay-Sachs病是另一种像AD一样破坏神经元的疾病。

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