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Annealing induced structural evolution in feldspar dental glass-ceramics investigated by solid-state NMR spectroscopy
Download2020-01-01
Bhattacharya, A., Qiu, Y., Bernard, G.M., Butler, S., Mar, A., Michaelis, V.K.
Glass-ceramics are an attractive oxide-based material routinely used for biomineral repair such as porcelain veneers in dental crown applications. The short- and long-range structure of a commercial glass-ceramic feldspar material, VITA VM9, has been investigated as a function of annealing...
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Spring 2020
Oscillating cytosolic calcium concentrations dictate the contraction-relaxation cycles of muscle cells. Calcium release from the sarcoplasmic reticulum (SR) to the cytosol stimulates muscle contraction, while active transport of calcium back into the SR triggers muscle relaxation. Calcium...
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Fall 2013
In human cells, oscillations in calcium concentration serve as a mechanism for controlling a variety of physiological processes including muscle contraction and relaxation. The sarcoplasmic reticulum (SR) is a calcium storage organelle in muscle cells that contains a calcium pump (SERCA) required...
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Cryo-electron microscopy of SERCA interacting with oligomeric phospholamban and oligomeric sarcolipin
DownloadFall 2011
In 2007, heart disease was the second leading cause of death in Canadians. In heart muscle cells, calcium (Ca2+) is released from the sarcoplasmic reticulum (SR) during contraction and must be replenished for relaxation to occur. Three proteins restore Ca2+ to the SR following contraction: the...