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作者：Jiang, Bo; Li, Haoran; Wang, Wei; Wang, Hui
作者单位：Nanjing University
摘要：Surface reconstruction determines the fate of catalytic sites on the near- surface during the oxygen evolution reaction. However, deciphering the conversion mechanism of various intermediate- states during surface reconstruction remains a challenge. Herein, we employed an optical imaging technique to draw the landscape of dynamic surface reconstruction on individual Co3O4 nanoparticles. By regulating the surface states of Co3O4 nanoparticles, we explored dynamic growth of the CoOx(OH)y sublaye...
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作者：Roychowdhury, Subhajit; Samanta, Kartik; Singh, Sukriti; Schnelle, Walter; Zhang, Yang; Noky, Jonathan; Vergniory, Maia G.; Shekhar, Chandra; Felser, Claudia
作者单位：Max Planck Society; Indian Institute of Science Education & Research (IISER) - Bhopal; University of Tennessee System; University of Tennessee Knoxville; University of Tennessee System; University of Tennessee Knoxville
摘要：In topological magnetic materials, the topology of the electronic wave function is strongly coupled to the structure of the magnetic order. In general, ferromagnetic Weyl semimetals generate a strong anomalous Hall conductivity (AHC) due to a large Berry curvature that scales with their magnetization. In contrast, a comparatively small AHC is observed in noncollinear antiferromagnets. We investigated HoAgGe, an antiferromagnetic (AFM) Kagome spin-ice compound, which crystallizes in a hexagonal...
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作者：Zheng, Yong; Wang, Yiru; Tian, Fucheng; Nakajima, Tasuku; Hui, Chung-Yuen; Gong, Jian Ping
作者单位：Hokkaido University; Hokkaido University; Hokkaido University; Cornell University; Hokkaido University; Zhejiang University
摘要：In this work, we have found that a prenotched double- network (DN) hydrogel, when subjected to tensile loading in a pure- shear geometry, exhibits intriguing stick-slip crack dynamics. These dynamics synchronize with the oscillation of the damage (yielding) zone at the crack tip. Through manipulation of the loading rate and the predamage level of the brittle network in DN gels, we have clarified that this phenomenon stems from the significant amount of energy dissipation required to form the d...
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作者：Chawla, Aashna; Kumar, Deepak
作者单位：Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Delhi
摘要：Soft and biological matter come in a variety of shapes and geometries. When soft surfaces that do not fit into each other due to a mismatch in Gaussian curvatures form an interface, beautiful geometry-induced patterns are known to emerge. In this paper, we study the effect of geometry on the dynamical response of soft surfaces moving relative to each other. Using a simple experimental scheme, we measure friction between a highly bendable thin polymer sheet and a hydrogel substrate. At this sof...
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作者：Garg, Akash; Yang, Feimo; Ozdoganlar, O. Burak; LeDuc, Philip R.
作者单位：Carnegie Mellon University; Carnegie Mellon University; Carnegie Mellon University; Carnegie Mellon University; Carnegie Mellon University; Carnegie Mellon University
摘要：Ice is emerging as a promising sacrificial material in the rapidly expanding area of advanced manufacturing for creating precise 3D internal geometries. Freeform 3D printing of ice (3D-ICE) can produce microscale ice structures with smooth walls, hierarchical transitions, and curved and overhang features. However, controlling 3D-ICE is challenging due to an incomplete understanding of its complex physics involving heat transfer, fluid dynamics, and phase changes. This work aims to advance our ...
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作者：Madeira, Lucas; Garcia-Orozco, ArnolD.; Moreno-Armijos, Michelle A.; Fritsch, Amilson R.; Bagnato, Vanderlei S.
作者单位：Universidade de Sao Paulo; Texas A&M University System; Texas A&M University College Station; Texas A&M University System; Texas A&M University College Station
摘要：Recent progress in out-of-equilibrium closed quantum systems has significantly advanced the understanding of mechanisms behind their evolution toward thermalization. Notably, the concept of nonthermal fixed points (NTFPs)-responsible for the emergence of spatiotemporal universal scaling in far-from-equilibrium systems- has played a crucial role in both theoretical and experimental investigations. In this work, we introduce a differential equation that has the universal scaling associated with ...
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作者：Lettermanna, Leon; Zieberta, Falko; Schwarz, Ulrich S.
作者单位：Ruprecht Karls University Heidelberg; Ruprecht Karls University Heidelberg
摘要：Gliding motility proceeds with little changes in cell shape and often results from actively driven surface flows of adhesins binding to the extracellular environment. It allows for fast movement over surfaces or through tissue, especially for the eukaryotic parasites from the phylum apicomplexa, which includes the causative agents of the widespread diseases malaria and toxoplasmosis. We have developed a fully three-dimensional active particle theory which connects the self-organized, actively ...
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作者：Krivoruchko, Ksenia; Koblitz, Jens C.; Goldshtein, Aya; Biljman, Katarina; Guillen-Servent, Antonio; Yovel, Yossi
作者单位：Tel Aviv University; Max Planck Society; Max Planck Society; Instituto de Ecologia - Mexico; Tel Aviv University; Tel Aviv University
摘要：Social foraging is very common in the animal kingdom. Numerous studies have documented collective foraging in various species and many reported the attraction of various species to foraging conspecifics. It is nonetheless difficult to quantify the benefits and costs of collective foraging, especially in the wild. We examined the benefits and costs of social foraging using on- board microphones mounted on freely foraging Molossus nigricans bats. This allowed us to quantify the bats' attacks on ...
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作者：Mouery, Brandon L.; Baker, Eliyambuya M.; Mei, Liu; Wolff, Samuel C.; Mills, Christine A.; Fleifel, Dalia; Mulugeta, Nebyou; Herring, Laura E.; Cook, Jeanette Gowen
作者单位：University of North Carolina; University of North Carolina Chapel Hill; University of North Carolina School of Medicine; University of North Carolina; University of North Carolina Chapel Hill; University of North Carolina School of Medicine; University of North Carolina; University of North Carolina Chapel Hill; University of North Carolina School of Medicine; Memorial Sloan Kettering Cancer Center; University of North Carolina; University of North Carolina Chapel Hill; University of North Carolina School of Medicine; University of North Carolina; University of North Carolina Chapel Hill; University of North Carolina School of Medicine; University of North Carolina; University of North Carolina Chapel Hill; University of North Carolina School of Medicine
摘要：Regulated cell cycle progression ensures homeostasis and prevents cancer. In proliferating cells, premature S phase entry is avoided by the E3 ubiquitin ligase anaphasepromoting complex/cyclosome (APC/C), although the APC/C substrates whose degradation restrains G1- S progression are not fully known. The APC/C is also active in arrested cells that exited the cell cycle, but it is not clear whether APC/C maintains all types of arrest. Here, by expressing the APC/C inhibitor, EMI1, we show that ...
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作者：Otun, Omolade; Aljamous, Christelle; Del Nero, Elise; Arimont-Segura, Marta; Bosma, Reggie; Zarzycka, Barbara; Girbau, Tristan; Leyrat, Cedric; de Graaf, Chris; Leurs, Rob; Durroux, Thierry; Granier, Sebastien; Cong, Xiaojing; Bechara, Cherine
作者单位：Centre National de la Recherche Scientifique (CNRS); Institut National de la Sante et de la Recherche Medicale (Inserm); Universite de Montpellier; Vrije Universiteit Amsterdam; Institut Universitaire de France; Heptares Therapeutics Ltd.
摘要：Atypical Chemokine Receptor 3 (ACKR3) belongs to the G protein- coupled receptor family but it does not signal through G proteins. The structural properties that govern the functional selectivity and the conformational dynamics of ACKR3 activation are poorly understood. Here, we combined hydrogen/deuterium exchange mass spectrometry, site- directed mutagenesis, and molecular dynamics simulations to examine the binding mode and mechanism of action of ACKR3 ligands of different efficacies. Our r...
