Results 221 to 230 of about 2,868,373 (267)
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Control of Leukocyte Integrin Activation
American Review of Respiratory Disease, 1993Abstract The integrin receptors on leukocytes are transiently activated by “triggering” molecules that may be other leukocyte membrane structures such as the T-cell receptor complex or small molecules such as PAF, which bind to their own specific receptors.
N, Hogg +3 more
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Mechanisms controlling CDK9 activity
Frontiers in Bioscience, 2006This review primarily focuses on the mechanisms that modulate CDK9 activity and its recruitment to cellular genes, where it phosphorylates the C-terminal domain of RNA polymerase II (RNAPII) as well as negative elongation factors. CDK9 associates with each of four cyclins (T1, T2a, T2b and K), forming distinct positive transcription elongation factors (
Renee M, Marshall, Xavier, Grana
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Active Control of Bias for the Control of Posture and Movement
Journal of Neurophysiology, 2010Posture and movement are fundamental, intermixed components of motor coordination. Current approaches consider either that 1) movement is an active, anticipatory process and posture is a passive feedback process or 2) movement and posture result from a common passive process.
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Computational Control for Active Structures
Advanced Technology in Structural Engineering, 2000Note: Advanced Technologies in Structural Engineering Reference IMAC-CONF-2000-029 Record created on 2007-08-14, modified on 2016-08 ...
Smith, I.F.C., Shea, K., Fest, E.
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Electromagnetically controllable osteoclast activity
Bone, 2014The time-varying electromagnetic field (EMF) has been widely studied as one of the exogenous stimulation methods for improving bone healing. Our previous study showed that osteogenic differentiation of adipose-derived stem cells was accelerated by a 45-Hz EMF, whereas a 7.5-Hz EMF inhibited osteogenic marker expression.
Hong, JM +4 more
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Active continuous quality control
Proceedings of the 16th International ACM Sigsoft symposium on Component-based software engineering, 2013We present Active Continuous Quality Control (ACQC), a novel approach that employs incremental active automata learning technology periodically in order to infer evolving behavioral automata of complex applications accompanying the development process.
Stephan Windmüller +4 more
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Active control of intracellular pH
Respiration Physiology, 1978When the interior of a squid giant axon is loaded with acid, the cell responds by extruding that acid in an energy-requiring process. Our results indicate that this acid extrusion is accomplished by exchanging external HCO3- for internal Cl- at the expense of ATP.
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Algorithms for Active Noise Control
2009The previous regulations about acoustics in buildings ruled only isolation, forgetting other important subjects. The new code in Spain, specifically the DB-HR document, also include the regulations of excessive noise reverberating that produces and causes discomfort in many cases non-speech intelligibility, this circumstance is crucial in certain areas.
M. Dolores Redel-Macías +3 more
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