2026

最新文章

• Heavily doped, highly compensated epitaxial ScN thin films exceed Boltzmann thermopower limits AI翻译
  作者：Karanje, Renuka; Rao, Dheemahi; Dadhich, Diksha; Rudra, Sourav; Pillai, Ashalatha Indiradevi Kamalasanan; Garbrecht, Magnus; Mukerjee, Subroto; Saha, Bivas
  作者单位：Department of Science & Technology (India); Jawaharlal Nehru Center for Advanced Scientific Research (JNCASR); Department of Science & Technology (India); Jawaharlal Nehru Center for Advanced Scientific Research (JNCASR); University of Sydney; Indian Institute of Science (IISC) - Bangalore; Department of Science & Technology (India); Jawaharlal Nehru Center for Advanced Scientific Research (JNCASR)
  摘要：The Seebeck effect converts a temperature gradient into an electric voltage. However, conventional transport theories constrain this thermopower to a few millivolts per Kelvin in crystalline materials. We present experimental evidence of a Seebeck coefficient exceeding -124 millivolts per Kelvin near room temperature in heavily doped, highly compensated (HDHC) epitaxial scandium nitride (ScN) thin films. Random distribution of charged dopants in HDHC ScN are known to generate potential fluctua...
• Generative design of bacteriophages with genome language models AI翻译
  作者：King, Samuel H.; Driscoll, Claudia L.; Li, David B.; Guo, Daniel; Merchant, Aditi T.; Brixi, Garyk; Wilkinson, Max E.; Hie, Brian L.
  作者单位：Stanford University; Stanford University; Stanford University; Stanford University; Stanford Medicine; Harvard University; Massachusetts Institute of Technology (MIT); Broad Institute; Stanford University
  摘要：Many important biological functions arise not from single genes but from complex interactions encoded by entire genomes. We report the first generative design of complete bacteriophage genomes using genome language models. We generated viable bacteriophages with target host tropism, using the phage Phi X174 as our design template. Experimental testing yielded 16 phages with diverse fitness profiles in laboratory conditions. Cryo-electron microscopy confirmed that a generated phage utilizes an ...
• Decadal doubling of Siberian methane emissions due to warming-induced fires and methanogenesis AI翻译
  作者：Zhu, Sihong; Liu, Yi; Palmer, Paul I.; Feng, Liang; Yang, Dongxu; Chen, Shangfeng; Sasakawa, Motoki; Parker, Robert J.; Boesch, Hartmut; Cao, Junji; Hermansen, Ove; Platt, Stephen M.
  作者单位：Chinese Academy of Sciences; Institute of Atmospheric Physics, CAS; Chinese Academy of Sciences; Institute of Atmospheric Physics, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; University of Edinburgh; University of Edinburgh; Chinese Academy of Sciences; Institute of Atmospheric Physics, CAS; National Institute for Environmental Studies - Japan; University of Leicester; University of Leicester; University of Bremen; NILU
  摘要：The northern permafrost region, which stores double the amount of carbon in the atmosphere, is vulnerable to accelerated warming. Methane emissions from thawing permafrost may eventually result in a climate-carbon feedback. Our analysis of atmospheric methane data shows that Siberian growing-season methane emissions have increased by 12.0 +/- 1.9 teragrams of methane (TgCH4) (5% per year) over the period 2010-2023. We reveal contrasting Siberian hydrological trends linked to high-pressure syst...
• A 10-million-year biogeographic holding pen primed the Great American Biotic Interchange AI翻译
  作者：Tseng, Z. Jack; Kahn, Leah X.; Pacheco-Castro, Adolfo; Carranza-Castaneda, Oscar; Aranda-Gomez, Jose Jorge; Wang, Yang; Chavez-Ambriz, Julio Cesar; Hannold, Chance; McDonald, H. Gregory; Wang, Xiaoming
  作者单位：University of California System; University of California Berkeley; University of California System; University of California Berkeley; Stanford University; Universidad Autonoma de Queretaro; Universidad Nacional Autonoma de Mexico; State University System of Florida; Florida State University; State University System of Florida; Florida State University
  摘要：The movement of taxa between North and South America across the Panamanian land bridge, known as the Great American Biotic Interchange (GABI), established modern-day mammal assemblages in the Americas, heralding the decisive end of what has been called the splendid isolation of the South American fauna. Lacking substantive low-latitude records, previous work on this pattern relied on South American and temperate North American fossils to conclude that pulsed interchanges began about 2.8 millio...
• Toward an exact quantum many-body treatment of Kondo correlation in magnetic impurities AI翻译
  作者：Zhu, Tianyu; Peng, Linqing; Zhai, Huanchen; Cui, Zhi-Hao; Chi, Runze; Chan, Garnet Kin-Lic
  作者单位：California Institute of Technology; Yale University
  摘要：The Kondo effect is a prototypical quantum phenomenon arising from the interaction between localized electrons in a magnetic impurity and itinerant electrons in a metallic host. Although this phenomenon has served as the testing ground for quantum many-body methods for decades, the precise description of Kondo physics with material specificity remains challenging. Here, we present a systematic ab initio approach to converge toward an exact zero-temperature electronic treatment of Kondo correla...
• Climate scientists sharpen tools for linking global warming to extreme weather AI翻译
  作者：Vaz, Julia
• As the Arctic warms, gray whale boom turns into a bust AI翻译
  作者：Cornwall, Warren
• Social calibration of sycophantic AI AI翻译
  作者：Meng, Shaoshuai
  作者单位：Peking University
• Ecology of the gut microbiome AI翻译
  作者：Bakkeren, Erik
  作者单位：University of Calgary
• Transparent fish takes center stage in $1 billion neuroscience initiative AI翻译
  作者：Beketova, Zoe