2025

最新文章

• Launching by cavitation AI翻译
  作者：Wang, Dalei; Liu, Zixiao; Zhao, Hongping; Qin, Huanqi; Bai, Gongxun; Chen, Chi; Shi, Pengju; Du, Yingjie; Zhao, Yusen; Liu, Wei; Wang, Dan; Zhou, Guoquan; He, Ximin; Dai, Chaoqing
  作者单位：Zhejiang A&F University; University of California System; University of California Los Angeles; China Jiliang University; Anhui University of Technology
  摘要：Cavitation, characterized by formation of vapor bubbles in a low-pressure or high-temperature region of a liquid, is often destructive, but it can be harnessed for actuators and robots. We exploit cavitation to accumulate substantial energy in superheated liquids by suppressing its immediate release until reaching a stability limit. The energetic, unstable bubbles collapse violently, producing a burst of high power and force that initiates motion. Notably, a millimeter-scale device launched by...
• The rise of rideable horses Early horse riders selected a rare mutation in a single gene to enhance rideability AI翻译
  作者：Frantz, Laurent
  作者单位：University of Munich; University of London; Queen Mary University London
  摘要：Although horses have played a transformative role in the recent evolution of humans, altering communication, transportation, farming, and warfare, their domestication occurred unexpectedly late, only around 4500 years ago-more than 5000 years after the domestication of pigs, goats, cattle, and sheep. On page 925 of this issue, Liu et al. (1) report using a combination of ancient DNA analysis and experimental work with mouse models to provide new evidence of the biological changes that transfor...
• Penetrance and variant consequences-Two sides of the same coin? AI翻译
  作者：Raiken, Harper; Stein, Amelie
  作者单位：University of Copenhagen
• Septal LYVE1+ macrophages control adipocyte stem cell adipogenic potential AI翻译
  作者：Yu, Xiaotong; Hu, Yanan; Lim, Hwee Ying; Li, Ziyi; Jaitin, Diego Adhemar; Yang, Katharine; Kong, Wan Ting; Xu, Jiaqian; Bejarano, David Alejandro; Bied, Mathilde; Orliaguet, Lucie; Rengasamy, Gowshika; Chow, Zachary; Lee, Christopher Zhe Wei; Lum, Josephine; Tian, Jing; Zhang, Xiao-Meng; Liu, Honghao; Tan, Shu Wen; Chen, Jinmiao; See, Peter; Loh, Yuin-Han; Malleret, Benoit; Baig, Sonia; Yassin, M. Shabeer M.; Toh, Sue-Anne Ee Shiow; Malissen, Bernard; Fu, Xiujun; Kabashima, Kenji; Ng, Lai Guan; Bleriot, Camille; Liu, Zhaoyuan; Sheng, Lingling; Zheng, Dan-Ning; Qu, Junwen; Venteclef, Nicolas; Su, Bing; Amit, Ido; Schlitzer, Andreas; Angeli, Veronique; Ginhoux, Florent; Chakarov, Svetoslav
  作者单位：Shanghai Jiao Tong University; Chinese Academy of Sciences; National University of Singapore; National University of Singapore; Weizmann Institute of Science; Agency for Science Technology & Research (A*STAR); A*STAR - Singapore Immunology Network (SIgN); UNICANCER; Gustave Roussy; University of Bonn; Universite Paris Cite; Agency for Science Technology & Research (A*STAR); Agency for Science Technology & Research (A*STAR); A*STAR - Institute of Molecular & Cell Biology (IMCB); National University of Singapore; Institut National de la Sante et de la Recherche Medicale (Inserm); Aix-Marseille Universite; Aix-Marseille Universite; Shanghai Jiao Tong University; Kyoto University; Shanghai Jiao Tong University; Shanghai Jiao Tong University; Shanghai Jiao Tong University; Central South University
  摘要：Tissue macrophages reside in anatomically distinct subtissular niches that shape their identity and function. In white adipose tissue (WAT), we identified three macrophage populations with distinct localization, turnover, and phenotypes. Septal adipose tissue macrophages (sATMs), marked by CD209b and lymphatic vessel endothelial hyaluronan receptor 1, were long-lived and positioned in close proximity to adipocyte stem cells (ASCs) within the WAT septum. Within this shared niche, sATMs instruct...
• Somatotopic organization of brainstem analgesic circuitry AI翻译
  作者：Crawford, Lewis S.; Mendoza, Fernando A. Tinoco; Robertson, Rebecca V.; Meylakh, Noemi; Macey, Paul M.; Bannister, Kirsty; Wager, Tor D.; Macefield, Vaughan G.; Keay, Kevin A.; Henderson, Luke A.
  作者单位：University of Sydney; University of Sydney; University of California System; University of California Los Angeles; Imperial College London; Dartmouth College; Monash University
  摘要：The lateral periaqueductal gray (lPAG) evokes somatotopically appropriate defensive behaviors, including an analgesia that allows the animal to escape or fight unimpeded. Whether the lPAG and its descending targets are also able to drive somatotopically specific analgesic responses is not known. In this work, we performed ultrahigh-field functional magnetic resonance imaging of the lPAG in 93 participants during a placebo analgesia paradigm performed at different body locations. We found that ...
• Europe's biggest quake may foretell Atlantic 'ring of fire' AI翻译
  作者：Howell, Evan
• Yellowstone's free-moving large bison herds provide a glimpse of their past ecosystem function AI翻译
  作者：Geremia, Chris; Hamilton, E. William; Merkle, Jerod A.
  作者单位：United States Department of the Interior; US National Park Service; Washington & Lee University; University of Wyoming
  摘要：Although momentum is building to restore bison across North America, most efforts focus on small, managed herds, leaving unclear how large, migrating herds shape landscapes and whether their effects enhance or degrade ecosystems. We assessed carbon and nitrogen dynamics across the northern Yellowstone ecosystem, where one of the last remaining large migratory populations resides. Bison stabilized net aboveground production while accelerating nitrogen turnover, increasing aboveground nitrogen p...
• Bones beneath the runway AI翻译
  作者：Ortega, Rodrigo Perez
• Taking nuclear energy to the Moon AI翻译
  作者：Huff, Kathryn
  作者单位：University of Illinois System; University of Illinois Urbana-Champaign
• Heavily polluted Tijuana River drives regional air quality crisis AI翻译
  作者：Rico, Benjamin; Barsanti, Kelley C.; Porter, William C.; Cysneiros de Carvalho, Karolina; Stigler-Granados, Paula; Prather, Kimberly A.
  作者单位：University of California System; University of California San Diego; University of California System; University of California Riverside; California State University System; San Diego State University; University of California System; University of California San Diego; Scripps Institution of Oceanography
  摘要：Industrial chemicals and untreated sewage have polluted the Tijuana River for decades, recently causing >1300 consecutive days of California beach closures. In summer 2024, wastewater flows surged to millions of gallons per day despite no rain, enhancing water-to-air transfer of hydrogen sulfide (H2S) and other toxic gases at a turbulent hotspot. High wastewater flows and low winds led to nighttime H2S peaks, reaching 4500 parts per billion (ppb)-exceeding typical urban levels of <1 ppb. H2S l...