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作者：Benevento, Marco; Alpar, Alan; Gundacker, Anna; Afjehi, Leila; Balueva, Kira; Hevesi, Zsofia; Hanics, Janos; Rehman, Sabah; Pollak, Daniela D.; Lubec, Gert; Wulff, Peer; Prevot, Vincent; Horvath, Tamas L.; Harkany, Tibor
作者单位：Medical University of Vienna; Semmelweis University; Semmelweis University; Medical University of Vienna; Paracelsus Private Medical University; University of Kiel; Universite de Lille; Institut National de la Sante et de la Recherche Medicale (Inserm); CHU Lille; Yale University
摘要：Empirical evidence suggests that heat exposure reduces food intake. However, the neurocircuit architecture and the signalling mechanisms that form an associative interface between sensory and metabolic modalities remain unknown, despite primary thermoceptive neurons in the pontine parabrachial nucleus becoming well characterized(1). Tanycytes are a specialized cell type along the wall of the third ventricle(2) that bidirectionally transport hormones and signalling molecules between the brain's...
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作者：Castelvecchi, Davide
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作者：Melis, Johan M.; Siwanowicz, Igor; Dickinson, Michael H.
作者单位：California Institute of Technology; Howard Hughes Medical Institute
摘要：Insects constitute the most species-rich radiation of metazoa, a success that is due to the evolution of active flight. Unlike pterosaurs, birds and bats, the wings of insects did not evolve from legs1, but are novel structures that are attached to the body via a biomechanically complex hinge that transforms tiny, high-frequency oscillations of specialized power muscles into the sweeping back-and-forth motion of the wings2. The hinge consists of a system of tiny, hardened structures called scl...
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作者：[Anonymous]
摘要：The valley degree of freedom(1-4) of electrons in materials promises routes towards energy-efficient information storage with enticing prospects for quantum information processing(5-7). Current challenges in utilizing valley polarization are symmetry conditions that require monolayer structures(8,9) or specific material engineering(10-13), non-resonant optical control to avoid energy dissipation and the ability to switch valley polarization at optical speed. We demonstrate all-optical and non-...
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作者：[Anonymous]
摘要：The United Kingdom is correct to attempt to end the single largest preventable cause of illness and death, as was New Zealand before its government changed its mind.
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作者：Fung, Fun Man; Liu, Yi-Hsin
作者单位：National University of Singapore; National Taiwan Normal University
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作者：[Anonymous]
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作者：Mantegna, Chris
作者单位：University of Washington; University of Washington Seattle
摘要：Amid the data deluge provided by lab-based techniques, such as environmental-DNA analysis, true connection still comes only in the outdoors.
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作者：Sendker, Franziska L.; Lo, Yat Kei; Heimerl, Thomas; Bohn, Stefan; Persson, Louise J.; Mais, Christopher-Nils; Sadowska, Wiktoria; Paczia, Nicole; Nussbaum, Eva; Olmos, Maria del Carmen Sanchez; Forchhammer, Karl; Schindler, Daniel; Erb, Tobias J.; Benesch, Justin L. P.; Marklund, Erik G.; Bange, Gert; Schuller, Jan M.; Hochberg, Georg K. A.
作者单位：Max Planck Society; Philipps University Marburg; Uppsala University; Philipps University Marburg; University of Oxford; Max Planck Society; Eberhard Karls University of Tubingen; Max Planck Society; Philipps University Marburg; Max Planck Society
摘要：Fractals are patterns that are self-similar across multiple length-scales(1). Macroscopic fractals are common in nature(2-4); however, so far, molecular assembly into fractals is restricted to synthetic systems(5-12). Here we report the discovery of a natural protein, citrate synthase from the cyanobacterium Synechococcus elongatus, which self-assembles into Sierpinski triangles. Using cryo-electron microscopy, we reveal how the fractal assembles from a hexameric building block. Although diffe...
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作者：Jones, Nicola
