Core Insights - The tourism industry in Europe is experiencing a strong recovery, leading to protests in various cities due to issues like over-tourism and rising living costs for locals [7][8][9] - The protests highlight the tension between tourism growth and local residents' quality of life, raising questions about sustainable tourism practices and equitable benefit sharing [9][10][12] Group 1: Tourism Growth and Protests - Europe has seen record high temperatures this summer, coinciding with a surge in tourism, prompting protests in cities like Palma, Barcelona, and Venice against over-tourism [7][8] - The United Nations World Tourism Organization predicts approximately 747 million international tourists will visit Europe in 2024, with Southern and Western Europe receiving about 70% of these visitors [8][9] - Protests are not against tourism itself but against the economic dependency on tourism that leads to negative impacts on local communities [9][10] Group 2: Economic Impact of Tourism - In Southern European countries, tourism significantly boosts the economy, contributing to various sectors such as transportation and retail [9] - By 2025, Spain's tourism sector is expected to contribute over €260 billion to the national economy, accounting for nearly 16% of GDP [9] - The protests reflect a broader issue of economic reliance on tourism, where local residents feel they do not benefit from the influx of tourists [9][10] Group 3: Measures to Address Over-Tourism - In response to the protests, cities like Venice and Barcelona have implemented measures such as entry fees and restrictions on short-term rentals to manage tourist flow [10][11] - However, these measures have faced backlash and have not effectively resolved the underlying issues of over-tourism and its impact on local communities [10][11] - The World Tourism Organization indicates that the challenges of over-tourism are rooted in deeper issues like infrastructure and planning, rather than just the number of tourists [11][12] Group 4: Sustainable Tourism Solutions - Experts suggest that developing a comprehensive governance system for sustainable tourism is essential, focusing on equitable sharing of tourism benefits with local residents [13][14] - Successful examples of sustainable tourism include community-driven initiatives in Switzerland and China, where local residents actively participate in tourism and benefit from its economic returns [13][14] - Enhancing local residents' involvement in tourism can lead to better outcomes for both the community and the tourism sector, fostering a more balanced relationship between tourists and locals [14]

Core Viewpoint - The increasing popularity of niche fruits like Huangpi, Longgong, and Jabuticaba in the market reflects a growing consumer interest, driven by unique flavors and health benefits, although challenges in cultivation and supply chain remain [8][10][12]. Group 1: Industry Insights - Huangpi is a tropical and subtropical evergreen fruit with a unique flavor, rich in nutrients, and gaining popularity due to new product developments like Huangpi tea drinks [9]. - The cultivation of Huangpi has been limited to southern China, with significant growth in areas like Guangdong and Guangxi, where it is becoming a pillar industry [10]. - The price of seedless Huangpi has more than doubled in recent years, indicating a growing market and increased interest from farmers [10]. Group 2: Sales and Distribution - Farmers are increasingly using e-commerce platforms to sell Huangpi, achieving daily sales of 3,000 to 5,000 pounds at around 20 yuan per pound [11]. - The development of cold chain logistics has mitigated transportation challenges, allowing for better preservation of Huangpi's quality during delivery [11]. - The introduction of niche fruits in retail, such as at Hema, is driven by consumer demand for variety and unique offerings [13][14]. Group 3: Consumer Behavior - Online consumers of Huangpi include those curious about its taste and those nostalgic for the fruit from their hometowns, indicating a diverse customer base [12]. - The selection of niche fruits for retail is based on consumer interest and the ability of the supply chain to maintain quality during transport [15].

Core Viewpoint - The recent outbreak of Chikungunya fever in some southern cities of China has raised concerns about its transmission and prevention methods, highlighting the need for public awareness and effective mosquito control measures [2][5]. Group 1: Disease Overview - Chikungunya fever is an acute mosquito-borne viral disease primarily transmitted by Aedes mosquitoes, particularly Aedes aegypti and Aedes albopictus, prevalent in tropical and subtropical regions [3][6]. - The disease was first identified in Tanzania in 1952, with its name derived from a local term meaning "to become contorted," reflecting the severe joint pain experienced by patients [3][5]. Group 2: Transmission and Symptoms - The primary transmission cycle is "human → mosquito → human," with no direct human-to-human transmission through casual contact or respiratory droplets [6][8]. - Symptoms include fever, joint pain, and rash, typically lasting 5 to 7 days, with a focus on vulnerable populations such as the elderly, children, pregnant women, and those with pre-existing health conditions [9][10]. Group 3: Comparison with Other Diseases - Chikungunya fever shares similarities with dengue fever in terms of transmission and initial symptoms, but it has a shorter incubation period and faster spread, with studies suggesting it spreads 2-3 times faster than dengue [10][11]. Group 4: Diagnosis and Treatment - Diagnosis involves virus nucleic acid testing and specific antibody detection, with no specific antiviral treatment available; management is primarily symptomatic [12][11]. - Patients are advised against self-medication, particularly with drugs like aspirin or ibuprofen, which could exacerbate symptoms [12][11]. Group 5: Prevention Measures - Effective prevention focuses on mosquito control, including eliminating breeding sites by removing stagnant water and using physical, chemical, and biological methods for mosquito eradication [13][14]. - Personal protective measures include wearing long sleeves and pants, using mosquito repellents, and avoiding outdoor activities during peak mosquito activity times [14].

"618"购物节期间，山东省青州市一家快递企业内，工人在流水线上分拣包裹。 王继林 摄（人民视觉） 7月30日，3辆无人驾驶快递配送车在甘肃省张掖市山丹县正式上岗运营。图为无人驾驶快递配送车将快 递件送达快递分发点。 王将 摄（人民视觉） 在湖北省襄阳市保康县，当地建制村快递配送服务覆盖率已达100%。图为工作人员在该中心生产线上 分拣快递。 陈泉霖 摄（人民视觉） 掏出手机，轻触屏幕，一键下单，大到冰箱空调洗衣机，小到快餐鲜果冷热饮，消费者都可以在家 中坐等快递送货上门。 便捷的生活方式，离不开强大快递物流体系的支撑。国家邮政局数据显示，全国快递业务量已从 2020年的约830亿件增长到2024年的1750亿件，年均增长20%左右。如今，中国邮政行业设立营业网点 超50万，快递业务量连续11年位居世界第一，目前平均每天揽收快件量超过5亿件，相当于每一秒都有 近6000个快递进入寄递渠道。 织密配送网络，打通"最后一公里" 石文春是福建龙岩武平县的一名极兔速递快递员。每天早上8点，他都会开着快递三轮车出门，到 自己负责的片区揽件，先把收来的快递集中发走，再把当天需要派送的件装上，一单单进行派送。五年 来，他亲 ...

主办方供图 松花江畔看风吹稻花，北大清华感受学术氛围，河北金山岭登巍峨长城，西子湖畔听南屏晚钟…… 这个暑期，2025全国台联台胞青年千人夏令营的部分营员来到东北三省、河北、北京、上海和浙江，感 受南北迥异的自然风光、风土人情，感受城市的发展脉络和底蕴深厚的历史文化。 "这次旅程远不止是一次游历，更是一次难得的学习与开阔眼界的宝贵经历，对我来说意义非 凡。"首次来到大陆的郭同学表示，他要把所见所闻分享给更多的台湾同学，让大家共同感受祖国的发 展脉动。 登上万里长城 "好喜欢这里，我都舍不得回家了。"全国台联台胞青年千人夏令营北京辽宁分营活动近日闭营，近 20位旅居海外的青年台胞带着不舍结束了在北京、辽宁的深度探访。 北京是许多台湾学子向往之地。此行，青年台胞游览了故宫博物院、天坛公园、八达岭长城以及底 蕴深厚的中国国家博物馆，探访了2024年新晋"世界文化遗产"的北京中轴线，并在国家体育场"鸟巢"、 国家游泳中心"水立方"近距离感受了"双奥之城"的独特魅力。 多名台湾高中生兴奋地表示，能够亲身走进北京大学和清华大学这两所世界顶尖学府，感受其优美 的校园环境和浓郁的学术氛围，倍感荣幸，也坚定了加倍努力、未来争取 ...

近日，山东省荣成市热电厂内机械轰鸣，高温次高压供暖锅炉节能改造工程施工正酣。改造完成后，供 暖锅炉的热效率将得到有效提高，煤炭消耗量将进一步降低，既能保障冬季供暖的稳定性与充足性，又 能为当地节能减排、推动绿色低碳发展。 李信君摄（人民视觉） 固定资产投资项目节能审查和碳排放评价是从源头提高新上项目能源利用效率、减少碳排放的一项 重要制度，是中国节能降碳制度体系的重要组成部分。近日，国家发展改革委修订印发《固定资产投资 项目节能审查和碳排放评价办法》（以下简称《办法》），自2025年9月1日起施行。据了解，此举旨在 贯彻落实党中央、国务院关于节能降碳的部署要求，进一步健全有关制度规定、着力提升管理效能，推 动经济社会高质量发展。 促进用能主体节能增效 节能审查制度有什么作用？据国家发展改革委有关负责人介绍，节能审查制度建立实施以来，在提 高能源利用效率、促进产业提质升级等方面发挥了重要作用。一是从源头减少能源浪费和二氧化碳排 放，二是推动产业转型升级，三是促进用能主体节能增效。 "节能审查依据节能政策制度和法规标准等要求，指导项目建设单位在开工建设前优化项目能源管 理机制，完善工艺技术路线设计和节能高效设备选 ...

投资增速放缓不意味着投资空间收缩。从上半年多方面投资数据看，有效投资规模仍在持续扩大。 根据国家统计局数据，上半年，设备工器具购置投资同比增长17.3%，增速比全部投资高14.5个百分 点，对全部投资增长的贡献率为86.0%。 上半年充换电基础设施完成投资额同比增长近70%、今年中央预算内投资基本下达完毕、上半年设备工 器具购置投资同比增长17.3%……最近，国家发展改革委等多部门接连公布上半年投资情况。专家分 析，上半年，各地区各部门统筹用好中央预算内投资、超长期特别国债、地方政府专项债等政策工具， 加快推进"两重"建设和"两新"工作，聚焦关键领域和薄弱环节积极扩大有效投资，推动固定资产投资平 稳增长。 投资实际增速基本稳定 上半年，全国固定资产投资(不含农户)248654亿元，同比增长2.8%。怎么看这一增速？ 一看名义增速。上半年，全国固定资产投资(不含农户)同比增长2.8%，这是名义增长速度，较前5个月 有所回落。分产业看，第一产业投资4816亿元，同比增长6.5%；第二产业投资88294亿元，增长 10.2%；第三产业投资155543亿元，下降1.1%。 二看实际增速。扣除价格因素影响，上半年固定资 ...

吴宪，美国南卡罗来纳大学教授，东点中文公立特许学校创始人，一生深耕数学与教育。"要做，就要 做到最好。"这句话贯穿了他从江苏常熟走到哈佛大学的漫长旅程，也贯穿了他在教学、科研、文化推 广等领域的持久坚持。 赴美求学 吴宪出生于江苏常熟，15岁时随父母回到老家，学习钟表技术谋生。一次支农劳动中，他不慎左手重 伤，只得在家休养，然而这段"被迫空闲"的日子，却激发了他新的兴趣。他开始研究无线电，组装收音 机，甚至挑战电视机组装。 凭借图纸与自学，他在两个月内成功组装了一台黑白电视机，引来邻里围观，这成为他后来在学术之路 上不断钻研的前奏。 除了实践能力，吴宪自小对数学情有独钟。课堂之外，他经常主动找来难题和书籍挑战自己，尤其迷恋 三次、四次方程，敬仰数学家华罗庚。"每当解出一道难题，心里就无比欢喜。"这种纯粹的兴趣，最终 将他引向更高的平台。 1977年恢复高考，他顺利考入清华大学基础课数学师资班。在等待录取结果时，他曾几度彻夜难眠，直 到通知书到手才彻底安心。 在清华期间，他获得参加数学大师陈省身与美国数学家格里菲斯在北大和中国科学院联合讲学的机会， 主讲内容为"微分几何"。清华选派了4名本科生参加，吴宪就是其中 ...

Core Insights - An international research team led by the Chinese Academy of Sciences has discovered the world's deepest and largest chemosynthetic ecosystem in the Northwest Pacific, specifically in the Chiba-Kamchatka and Aleutian trenches, at a depth of 9,533 meters [1][2] - The research utilized the "Striver" manned submersible to reveal thriving chemosynthetic communities that do not rely on sunlight for energy, instead using chemical reactions from geological fluids for metabolism [1][2] - This discovery challenges existing beliefs about life survival at extreme depths and provides new perspectives on the complex mechanisms of deep-sea carbon cycling [1][2] Group 1 - The research indicates that the chemosynthetic communities observed are the deepest and largest known, spanning over 2,500 kilometers of trench bottom, primarily consisting of deep-sea tube worms and bivalve mollusks [1][2] - These communities sustain themselves by utilizing fluids rich in hydrogen sulfide and methane that rise along faults [1][2] - The study suggests that new species of chemosynthetic life may be discovered, along with potential new metabolic pathways and mechanisms for extreme pressure adaptation [1] Group 2 - The findings have significant implications for understanding the Earth's deep carbon cycle, revealing that methane in these environments is produced by microbial activity deep within sediment layers [2] - This indicates the existence of a previously unknown, large, active deep biosphere dominated by methane-producing microorganisms, which convert carbon dioxide from decomposed organic matter into methane [2] - The research challenges the traditional view that deep-sea ecosystems primarily rely on organic particles and animal remains from the ocean surface, suggesting that chemosynthetic life plays a more crucial role than previously thought [2]

Group 1 - The Zhangguan Expressway, an important part of the national highway network, has successfully completed the main bridge construction, laying a solid foundation for its full operation by 2026 [2] - In the first half of the year, investment in charging and swapping infrastructure increased by nearly 70%, indicating a strong focus on expanding effective investment in key areas [2] - The total fixed asset investment (excluding rural households) reached 248,654 billion yuan, with a nominal year-on-year growth of 2.8%, reflecting a slight decline compared to the previous months [3] Group 2 - The actual growth rate of fixed asset investment, after adjusting for price factors, was 5.3%, indicating stability despite a 0.3 percentage point decline compared to the same period last year [3][4] - Equipment and tool purchases saw a significant year-on-year increase of 17.3%, contributing 86.0% to the overall investment growth [5] - Infrastructure investment grew by 4.6% year-on-year, with water transportation and water management investments increasing by 21.8% and 15.4%, respectively [6] Group 3 - The government is emphasizing high-quality promotion of "two major" constructions and stimulating private investment to expand effective investment [7] - The National Development and Reform Commission has completed the allocation of 800 billion yuan for "two major" construction projects and 735 billion yuan for central budget investments [7] - There is significant potential for fixed asset investment in new production capacities, urban renewal, and addressing social needs, which aligns with high-quality development goals [8]