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作者：Libourel, P. -A.; Lee, W. Y.; Achin, I.; Chung, H.; Kim, J.; Massot, B.; Rattenborg, N. C.
作者单位：Institut National de la Sante et de la Recherche Medicale (Inserm); Korea Polar Research Institute (KOPRI); Institut National des Sciences Appliquees de Lyon - INSA Lyon
摘要：Microsleeps, the seconds-long interruptions of wakefulness by eye closure and sleep-related brain activity, are dangerous when driving and might be too short to provide the restorative functions of sleep. If microsleeps do fulfill sleep functions, then animals faced with a continuous need for vigilance might resort to this sleep strategy. We investigated electroencephalographically defined sleep in wild chinstrap penguins, at sea and while nesting in Antarctica, constantly exposed to an egg pr...
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作者：Masset, Frederic
作者单位：Universidad Nacional Autonoma de Mexico
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作者：Service, Robert F.
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作者：Landires, Ivan; Castillero, Irene; Ramos, Isaias; Nunez-Samudio, Virginia
作者单位：Universidad de Panama
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作者：Wang, Wen O.; Ding, Jixun K.; Schattner, Yoni; Huang, Edwin W.; Moritz, Brian; Devereaux, Thomas P.
作者单位：Stanford University; Stanford University; United States Department of Energy (DOE); SLAC National Accelerator Laboratory; Stanford University; University of Illinois System; University of Illinois Urbana-Champaign; University of Illinois System; University of Illinois Urbana-Champaign; University of Notre Dame; University of Notre Dame; Stanford University; Stanford University
摘要：Many metallic quantum materials display anomalous transport phenomena that defy a Fermi liquid description. Here, we use numerical methods to calculate thermal and charge transport in the doped Hubbard model and observe a crossover separating high- and low-temperature behaviors. Distinct from the behavior at high temperatures, the Lorenz number L becomes weakly doping dependent and less sensitive to parameters at low temperatures. At the lowest numerically accessible temperatures, L roughly ap...
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作者：He, Qiongyao; Schmidt, Soren; Zhu, Wanquan; Wu, Guilin; Huang, Tianlin; Zhang, Ling; Jensen, Dorte Juul; Feng, Zongqiang; Godfrey, Andrew; Huang, Xiaoxu
作者单位：Chongqing University; European Spallation Source (ESS); Chongqing University; Chongqing University; University of Science & Technology Beijing; Technical University of Denmark; Tsinghua University
摘要：In polycrystalline metals, plastic deformation is accompanied by lattice rotations resulting from dislocation glide. Following these rotations in three dimensions requires nondestructive methods that so far have been limited to grain sizes at the micrometer scale. We tracked the rotations of individual grains in nanograined nickel by using three-dimensional orientation mapping in a transmission electron microscope before and after in situ nanomechanical testing. Many of the larger-size grains ...
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作者：Hinch, Robert; Donnelly, Peter; Hinch, Anjali Gupta
作者单位：University of Oxford; University of Oxford; Wellcome Centre for Human Genetics
摘要：Meiotic recombination commences with hundreds of programmed DNA breaks; however, the degree to which they are accurately repaired remains poorly understood. We report that meiotic break repair is eightfold more mutagenic for single-base substitutions than was previously understood, leading to de novo mutation in one in four sperm and one in 12 eggs. Its impact on indels and structural variants is even higher, with 100- to 1300-fold increases in rates per break. We uncovered new mutational sign...
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作者：Wade, Lizzie
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作者：Kotchen, Matthew J.; Rising, James A.; Wagner, Gernot
作者单位：Yale University; University of Delaware; Columbia University
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作者：Li, Xiaogang; Lam, Su Shiung; Xia, Changlei; Zhong, Huan; Sonne, Christian
作者单位：Nanjing Forestry University; Universiti Malaysia Terengganu; Saveetha Institute of Medical & Technical Science; Nanjing University; Aarhus University
