J.W.M. Turner used gumtion to make his paintings dynamic. It wasn't simply that he was a dab hand with the brush, he literally used a mixture called gumtion comprising mastic resin with a lead acetate additive to make his oils flow more slicker and smoother across the canvas a spectroscopic study shows.
Accelerating proton spin diffusion in perdeuterated proteins at 100Â*kHz MAS
Accelerating proton spin diffusion in perdeuterated proteins at 100Â*kHz MAS
Abstract
Fast magic-angle spinning (>60Â*kHz) has many advantages but makes spin-diffusion-type protonâ??proton long-range polarization transfer inefficient and highly dependent on chemical-shift offset. Using 100%-HN--ubiquitin as a model substance, we quantify the influence of the chemical-shift difference on the spin diffusion between proton spins and compare two experiments which lead to an improved chemical-shift compensation of the transfer: rotating-frame spin...
Painting with gumtion: Accelerating art
J.W.M. Turner used gumtion to make his paintings dynamic. It wasn't simply that he was a dab hand with the brush, he literally used a mixture called gumtion comprising mastic resin with a lead acetate additive to make his oils flow more slicker and smoother across the canvas a spectroscopic study shows.
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