Science

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• NIH weighs controversial overhaul of HIV budget AI翻译
  作者：Cohen, Jon
• Comparative connectomics of two distantly related nematode species reveals patterns of nervous system evolution AI翻译
  作者：Cook, Steven J.; Kalinski, Cristine A.; Loer, Curtis M.; Memar, Nadin; Majeed, Maryam; Stephen, Sarah Rebecca; Bumbarger, Daniel J.; Riebesell, Metta; Conradt, Barbara; Schnabel, Ralf; Sommer, Ralf J.; Hobert, Oliver
  作者单位：Columbia University; Howard Hughes Medical Institute; University of San Diego; Braunschweig University of Technology; University of Munich; Allen Institute for Brain Science; Institute for Basic Science - Korea (IBS); University of London; University College London
  摘要：Understanding the evolution of the bilaterian brain requires a detailed exploration of the precise nature of cellular and subcellular differences between related species. We undertook an electron micrographic reconstruction of the brain of the predatory nematode Pristionchus pacificus and compared the results with the brain of Caenorhabditis elegans, which diverged at least 100 million years ago. We revealed changes in neuronal cell death, neuronal cell position, axodendritic projection patter...
• Experiencing the Arctic AI翻译
  作者：Herndon, Jaime
• Negative capacitance overcomes Schottky-gate limits in GaN high-electron-mobility transistors AI翻译
  作者：Khan, Asir Intisar; Kim, Jeong-Kyu; Sikder, Urmita; Das, Koushik; Rodriguez, Thomas; Soman, Rohith; Chowdhury, Srabanti; Salahuddin, Sayeef
  作者单位：University of California System; University of California Berkeley; United States Department of Energy (DOE); Lawrence Berkeley National Laboratory; Stanford University; Stanford University; University of California System; University of California Berkeley
  摘要：For high-electron-mobility transistors based on two-dimensional electron gas (2DEG) within a quantum well-such as those based on AlGaN/GaN heterostructures-a Schottky gate is used to maximize the amount of charge that can be induced and thereby the current that can be achieved. However, the Schottky gate also leads to very high leakage current through the gate electrode. Adding a conventional dielectric layer between the nitride layers and gate metal can reduce leakage; but this comes at the p...
• High-field superconducting halo in UTe2 AI翻译
  作者：Lewin, Sylvia K.; Czajka, Peter; Frank, Corey E.; Saucedo Salas, Gicela; Noe II, G. Timothy; Yoon, Hyeok; Eo, Yun Suk; Paglione, Johnpierre; Nevidomskyy, Andriy H.; Singleton, John; Butch, Nicholas P.
  作者单位：National Institute of Standards & Technology (NIST) - USA; University System of Maryland; University of Maryland College Park; United States Department of Energy (DOE); Los Alamos National Laboratory; Canadian Institute for Advanced Research (CIFAR); Rice University; Rice University; Rice University
  摘要：The heavy fermion material UTe2 is a candidate topological superconductor that exhibits multiple magnetic field-induced superconducting phases. One such phase exists only at fields greater than 40 tesla, a considerable scale given its critical temperature of only 2 K. Here, we extend measurements of this state with fields outside of the bc crystallographic plane and reveal its core structure: The superconducting phase wraps around the b axis in a halo-like fashion and appears to be stabilized ...
• New scheme for overhead payments faces doubts AI翻译
  作者：Mervis, Jeffrey
• Little-to-no industrial fishing occurs in fully and highly protected marine areas AI翻译
  作者：Raynor, Jennifer; Orofino, Sara; Costello, Christopher; McDonald, Gavin; Mayorga, Juan; Sala, Enric
  作者单位：University of Wisconsin System; University of Wisconsin Madison; University of California System; University of California Santa Barbara; University of California System; University of California Santa Barbara; University of California System; University of California Santa Barbara; National Geographic Society
  摘要：There is a widespread perception that illegal fishing is common in marine protected areas (MPAs) due to strong incentives for poaching and the high cost of monitoring and enforcement. Using artificial intelligence and satellite-based Earth observations, we provide estimates of industrial fishing activity in fully and highly protected MPAs worldwide, in which such fishing is banned. We find little to no activity in most cases. On average, these MPAs had just one fishing vessel present per 20,00...
• US disregards scientific consensus on race AI翻译
  作者：Graves Jr, Joseph L.; Goodman, Alan; Farina, Stacy; Moses, Yolanda
  作者单位：University of North Carolina; North Carolina A&T State University; Howard University; University of California System; University of California Riverside
• Two-dimensional indium selenide wafers for integrated electronics AI翻译
  作者：Qin, Biao; Jiang, Jianfeng; Wang, Lu; Guo, Quanlin; Zhang, Chenxi; Xu, Lin; Ni, Xing; Yin, Peng; Peng, Lian-Mao; Wang, Enge; Ding, Feng; Qiu, Chenguang; Liu, Can; Liu, Kaihui
  作者单位：Peking University; Renmin University of China; Peking University; Peking University; Soochow University - China; Soochow University - China; Peking University; Peking University; Tsinghua University; Peking University; Collaborative Innovation Center of Quantum Matter; Suzhou Laboratory; Songshan Lake Materials Laboratory
  摘要：Two-dimensional (2D) indium selenide, with its low effective mass, high thermal velocity, and exceptional electronic mobility, is a promising semiconductor for surpassing silicon electronics, but grown films have not achieved performance comparable with that of exfoliated micrometer-scale flakes. We report a solid-liquid-solid strategy that converts amorphous indium selenide films into pure-phase, high-crystallinity indium selenide wafers by creating an indium-rich liquid interface and maintai...
• Vaccination to mitigate climate-driven disruptions to malaria control in Madagascar AI翻译
  作者：Rice, Benjamin L.; Raobson, Estelle; Miharisoa, Sylviane; Rebaliha, Mahery; Lewinski, Joseph; Raharinirina, Hanitriniaina; Golden, Christopher D.; Vecchi, Gabriel A.; Wesolowski, Amy; Grenfell, Bryan; Metcalf, C. Jessica E.
  作者单位：Princeton University; University Antananarivo; Pasteur Network; Institut Pasteur Madagascar; Harvard University; Harvard T.H. Chan School of Public Health; Princeton University; Princeton University; Johns Hopkins University; Johns Hopkins Bloomberg School of Public Health; Princeton University
  摘要：Extreme weather is common in high malaria burden areas and is likely to increase in severity owing to climate change-related severe weather events. Yet, data on infection rates after these events and the consequences for planning disease control programs remain rare. Data on malaria infection in the wake of major tropical cyclones in Madagascar show that infection is likely to rebound rapidly during the gaps in interventions that occur after extreme events. Relative to other control options, r...