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PM to visit Una and Chamba in Himachal on Thursday_我的网站

A |     New Delhi, Oct 12 (UNI) Prime Minister Narendra Modi will visit Una and Chamba in Himachal Pradesh on Thursday and launch various developmental initiatives in the state.

In Una, Prime Minister will flag off Vande Bharat Express from Una Himachal railway station.

Running from Amb Andaura to New Delhi, it will be the fourth Vande Bharat train to be introduced in the country and is an advanced version compared to the earlier ones, being much lighter and capable of reaching higher speed in shorter duration, the PMO said.

The train accelerates to 100 Km/h in just 52 seconds.

The introduction of the train will help boost tourism in the region and provide a comfortable and faster mode of travel.

Thereafter, in a public function, the Prime Minister will dedicate IIIT Una to the nation and lay the foundation stone of Bulk Drug Park in Una.

The foundation stone of the IIT was laid by the Prime Minister in 2017. Currently more than 530 students are pursuing study in this Institute.

The Prime Minister will lay the foundation stone of Bulk Drug Park at Haroli in Una district, which will be built at a cost of over Rs 1900 crore.

The Park will help reduce dependence on API imports, the PMO said.

It is expected to attract investment of around Rs 10,000 crores and provide employment to more than 20,000 people. It will also give a fillip to economic activities in the region.

The Prime Minister will lay the foundation stone of two hydropower projects - the 48 MW Chanju-III Hydro-electric Project and the 30 MW Deothal Chanju Hydro-electric Project.

Both these projects will generate over 270 million units of electricity annually and Himachal Pradesh is expected to get annual revenue of around Rs. 110 crore from these projects, the PMO said.

The Prime Minister will also launch Pradhan Mantri Gram Sadka Yojana (PMGSY)-III in Himachal Pradesh for upgradation of around 3125 kms of roads in the State.

More than Rs 420 crore has been sanctioned by the Central Government under this phase for the upgradation of 440 kms of roads in 15 border and far flung Blocks of the State.

UNI ASU GNK。     8 月 26 日消息，据新华社今日报道，首都师范大学生命科学学院昆虫演化与环境变迁教育部创新团队联合国内外多个科研团队，通过对内蒙古宁城县道虎沟地区侏罗纪时期化石螽斯的研究，首次证实昆虫超声波通讯在距今 1.65 亿年前的中侏罗世已经出现。相关研究成果于 2026 年 8 月 26 日在线发表于《美国科学院院刊》（PNAS）。研究团队选取了燕辽生物群中 9 种、20 件雄性螽斯前翅标本，与现仅分布在四川的螽斯孑遗类群长生铁鸣螽进行对照研究。团队搭建了“化石翅形态 — 翅共振模拟 — 音节重构 — 鸣声时序预测”的古动物声学重建流程，用以复原远古昆虫完整鸣声的声学特征。

B | 论文共同通讯作者、首都师范大学教授任东介绍，9 种化石螽斯的鸣声频率覆盖 5kHz 至 20.5kHz 区间，其中 5 个物种为 5kHz 至 7kHz 的低频纯音，其余 4 个物种分布于 8kHz 至 20.5kHz 的中高频区间。化石物种奇异曲阿博鸣螽的载波频率可达 20.5kHz，证实中侏罗世已存在真正意义上的超声通讯类昆虫。此前学界长期认为，超声通讯类昆虫是为应对蝙蝠捕食而演化形成的。该项研究明确了超声通讯类昆虫的演化起源发生在蝙蝠出现之前，比始新世蝙蝠早出现超过 1 亿年。研究还发现，9 种化石螽斯的鸣叫声频谱范围异常狭窄，即“纯音”（注：指频率成分单一的声波）。这种纯音鸣唱会降低捕食者对声源的定位能力 —— 侏罗纪早期哺乳动物虽具备一定高频听觉，但其中耳结构对纯音的方位分辨能力较弱。因此，侏罗纪螽斯演化出纯音鸣唱，被认为是对抗捕食者窃听的关键演化适应。任东团队与英国布里斯托大学曾于 2012 年首次复原了道虎沟地区中侏罗世螽斯物种“悦耳古鸣螽”的鸣叫声。此次新成果不仅首次证实昆虫超声波通讯已在侏罗纪时期出现，还完整重建了史前森林螽斯群落的声景。任东表示，该研究“穿越 1.65 亿年听见侏罗纪时期的虫鸣”，建立起中生代昆虫-哺乳类双向声学选择的新理论，完善了陆地动物听觉与发声协同演化体系。

C | 附论文地址：
https://doi.org/10.1073/pnas.2615107123。

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