Ordering and dimensional crossovers in metallic glasses and liquids

Posted by klaurent Caltech

Kavli Affiliate: Julia R. Greer | Summary:The atomic-level structures of liquids and glasses are amorphous, lacking long-range order. We characterize the atomic structures by integrating radial distribution functions (RDF) from molecular dynamics (MD) simulations for several metallic liquids and glasses: Cu46Zr54, Ni80Al20, Ni33.3Zr66.7, and Pd82Si18. Resulting cumulative coordination numbers (CN) show that metallic liquids have […]


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Imaging proteins at the truly single-molecule level

Posted by klaurent Oxford

Kavli Affiliate: Stephan Rauschenbach | Summary:Imaging single proteins has been a long-standing ambition for advancing various fields in natural science, as for instance structural biology, biophysics and molecular nanotechnology. In particular, revealing the distinct conformations of an individual protein is of utmost importance. Here, we show the imaging of individual proteins and protein complexes by […]


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Ralph Henstock’s Lectures on the Theory of Integration

Posted by klaurent Cornell

Kavli Affiliate: Daniel Ralph | First 5 Authors: Ralph Henstock, Ralph Henstock, , , | Summary: These are the class notes of lectures given by Ralph Henstock at the New University of Ulster in 1970-71. The notes deal with the Riemann-complete integral (also known as the generalized Riemann integral, the gauge integral, and the Henstock-Kurzweil […]


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Nanoscale assembly processes revealed in the nacroprismatic transition zone of Pinna nobilis mollusc shells

Posted by klaurent Cornell

Kavli Affiliate: Lara A. Estroff | Summary:Intricate biomineralization processes in molluscs engineer hierarchical structures with meso-, nano-, and atomic architectures that give the final composite material exceptional mechanical strength and optical iridescence on the macroscale. This multiscale biological assembly inspires new synthetic routes to complex materials. Our investigation of the prism-nacre interface reveals nanoscale details […]


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Repeated transcranial direct current stimulation (tDCS) in nondepressed reduces levels of reported negative affects from daily stressors

Posted by klaurent Oxford

Kavli Affiliate: Simon Newstead | Summary:Negative emotional responses to the daily life stresses have cumulative effects which, in turn, impose wide-ranging negative constraints on emotional well being and neurocognitive performance (Kalueff:2007cp, Charles:2013eq, Nadler:2010hk). Crucial cognitive functions such as memory and problem solving, as well more short term emotional responses (e.g., anticipation of- and response to- […]


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Innovative Science

Posted by klaurent Oxford

Kavli Affiliate: David Ray | Summary:Sir, We write as senior scientists about a problem vital to the scientific enterprise and prosperity. Nowadays, funding is a lengthy and complex business. First, universities themselves must approve all proposals for submission. Funding agencies then subject those that survive to peer review, a process by which a few researchers, […]


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Proposal for a transmon-based quantum router

Posted by klaurent Delft

Kavli Affiliate: Miriam Blaauboer | Summary:We propose an implementation of a quantum router for microwave photons in a superconducting qubit architecture consisting of a transmon qubit, SQUIDs and a nonlinear capacitor. We model and analyze the dynamics of operation of the quantum switch using quantum Langevin equations in a scattering approach and compute the photon […]


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Closing the proximity gap in a metallic Josephson junction between three superconductors

Posted by klaurent Delft

Kavli Affiliate: Yu V. Nazarov | Summary:We describe the proximity effect in a short disordered metallic junction between three superconducting leads. Andreev bound states in the multi-terminal junction may cross the Fermi level. We reveal that for a quasi-continuous metallic density of states, crossings at the Fermi level manifest as closing of the proximity-induced gap. […]


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Stratified shear flow instabilities in the non-Boussinesq regime

Posted by klaurent Cornell

Kavli Affiliate: Kinfai Mak| First 5 Authors: Eyal Heifetz, Eyal Heifetz, , , | Summary:Effects of the baroclinic torque on wave propagation normally neglected under the Boussinesq approximation is investigated here, with a special focus on the associated consequences for the mechanistic interpretation of shear instability arising from the interaction between a pair of vorticity-propagating […]


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Thermal Maps of Gases in Heterogeneous Reactions

Posted by klaurent Berkeley

Kavli Affiliate: Omar M. Yaghi | Summary:Over 85% of all chemical industry products are made using catalysts, with the overwhelming majority of these employing heterogeneous catalysts functioning at the gas-solid interface. Consequently, optimizing catalytic reactor design attracts much effort. Such optimization relies on heat transfer and fluid dynamics modeling coupled to surface reaction kinetics. The […]


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