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作者:Liu, Dasheng
摘要:Failure to fund education in taxonomy could derail efforts to support conservation in low- and middle-income countries. Failure to fund education in taxonomy could derail efforts to support conservation in low- and middle-income countries.
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作者:Huling, Ryan; Lee, Doris; Nutakul, Wasamon; Goh, Samuel
摘要:As climate and food-security pressures intensify, the world's most populous continent sees clear opportunities to reimagine meat - just as it did for affordable solar panels.
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作者:Vazquez, Isabel Rebollido
作者单位:European Space Agency; European Space Astronomy Center
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作者:Brown, Timothy D.; Zhang, Alan; Nitta, Frederick U.; Grant, Elliot D.; Chong, Jenny L.; Zhu, Jacklyn; Radhakrishnan, Sritharini; Islam, Mahnaz; Fuller, Elliot J.; Talin, A. Alec; Shamberger, Patrick J.; Pop, Eric; Williams, R. Stanley; Kumar, Suhas
作者单位:United States Department of Energy (DOE); Sandia National Laboratories; Stanford University; Texas A&M University System; Texas A&M University College Station
摘要:Any electrical signal propagating in a metallic conductor loses amplitude due to the natural resistance of the metal. Compensating for such losses presently requires repeatedly breaking the conductor and interposing amplifiers that consume and regenerate the signal. This century-old primitive severely constrains the design and performance of modern interconnect-dense chips(1). Here we present a fundamentally different primitive based on semi-stable edge of chaos (EOC)(2,3), a long-theorized bu...
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作者:Matthews, E. C.; Carter, A. L.; Pathak, P.; Morley, C. V.; Phillips, M. W.; Krishanth, S.; Feng, F.; Bonse, M. J.; Boogaard, L. A.; Burt, J. A.; Crossfield, I. J. M.; Douglas, E. S.; Henning, Th.; Hom, J.; Ko, C-L; Kasper, M.; Lagrange, A-M; de la Roche, D. Petit Dit; Philipot, F.
作者单位:Max Planck Society; Space Telescope Science Institute; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Kanpur; University of Texas System; University of Texas Austin; University of Edinburgh; Shanghai Jiao Tong University; Swiss Federal Institutes of Technology Domain; ETH Zurich; Max Planck Society; National Aeronautics & Space Administration (NASA); NASA Jet Propulsion Laboratory (JPL); California Institute of Technology; University of Kansas; European Southern Observatory; Universite PSL; Observatoire de Paris; Universite Paris Cite; Sorbonne Universite; Centre National de la Recherche Scientifique (CNRS); University of Geneva
摘要:Of the approximately 25 directly imaged planets to date, all are younger than 500 Myr, and all but six are younger than 100 Myr (ref. 1). Eps Ind A (HD209100, HIP108870) is a K5V star of roughly solar age (recently derived as 3.7-5.7 Gyr (ref. 2) and 3.5(-1.3)(+0.8) Gyr (ref. 3)). A long-term radial-velocity trend(4,5) and an astrometric acceleration(6,7) led to claims of a giant planet(2,8,9) orbiting the nearby star (3.6384 +/- 0.0013 pc; ref. 10). Here we report JWST coronagraphic images wh...
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作者:Dance, Amber
摘要:Scientists have more information than ever on how cells differ - but they still resist easy grouping. Scientists have more information than ever on how cells differ - but they still resist easy grouping.
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作者:Kimmelman, Jonathan
作者单位:McGill University
摘要:From artificial-intelligence algorithms to zebrafish, this book take a precautionary approach to assessing how sentient such entities are.
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作者:[Anonymous]
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作者:Xin, Wendy; Kaneko, Megumi; Roth, Richard H.; Zhang, Albert; Nocera, Sonia; Ding, Jun B.; Stryker, Michael P.; Chan, Jonah R.
作者单位:University of California System; University of California San Francisco; University of California System; University of California San Francisco; University of California System; University of California San Francisco; Stanford University
摘要:Developmental myelination is a protracted process in the mammalian brain1. One theory for why oligodendrocytes mature so slowly posits that myelination may stabilize neuronal circuits and temper neuronal plasticity as animals age2-4. We tested this theory in the visual cortex, which has a well-defined critical period for experience-dependent neuronal plasticity5. During adolescence, visual experience modulated the rate of oligodendrocyte maturation in visual cortex. To determine whether oligod...
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作者:Lenharo, Mariana