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Articles on Oscillometry
Asymmetric glottal jet deflection: differences of two- and three-dimensional models.
Flow is studied through a channel with an oscillating orifice mimicking the motion of the glottal-gap during phonation. Simulations with prescribed flow and wall-motion are carried out for different orifice geometries, a 2D slit-like and a 3D lens-like one. Although the jet emerges f...
The energetics of flow through a rapidly oscillating tube with slowly varying amplitude.
We examine the flow structure and energy budget of flow through an elastic-walled tube. Specifically, we consider the case in which a background axial flow is perturbed by prescribed small-amplitude high-frequency long-wavelength oscillations of the tube wall, with a slowly growing or decaying ampli...
[Roles of allergen testing in vitro and impulse oscillometry for lung function measurements in children with cough variant asthma].
To study the roles of allergen testing in vitro and impulse oscillometry for lung function measurements in preschool children with cough variant asthma (CVA). ethodsForty-four preschool children with acute asthma, 41 with chronic asthma, 46 with CVA, and 35 healthy pr...
Parametric instability of an integrated micromechanical oscillator by means of active optomechanical feedback.
We have implemented an active feedback system, where the feedback signal is provided by the optical gradient force that is present between nanophotonic waveguides on a silicon-on-insulator chip. We found that access to the parametric instability regime can be easily controlled by tuning the waveleng...
Length-dependent modulation of cytoskeletal remodeling and mechanical energetics in airway smooth muscle.
We tested the hypothesis that mechanical strain modulates the cholinergic receptor-mediated cytoskeletal recruitment of actin-binding and integrin-binding proteins in intact airway smooth muscle, thereby regulating the mechanical energetics of airway smooth muscle. We found that the carbachol-stimul...
Accessing a hidden conformation of the maltose binding protein using accelerated molecular dynamics.
We describe accelerated MD simulations that provide a detailed picture of the transition between the open and partially closed states, and confirm the existence of a dynamical equilibrium between these two states in apo MBP. We find that a flexible part of the protein called the balancing interface...
Quantifying phase-amplitude coupling in neuronal network oscillations
We briefly review the evidence that these nested, cross-frequency interactions act in concert with linearly covariant (within-frequency) activity to dynamically coordinate functionally related neuronal ensembles during behaviour. Such studies depend upon reliable quantification of cross-frequency co...
A lumped mucosal wave model of the vocal folds revisited: recent extensions and oscillation hysteresis.
This paper examines an updated version of a lumped mucosal wave model of the vocal fold oscillation during phonation. Threshold values of the subglottal pressure and the mean (DC) glottal airflow for the oscillation onset are determined. Depending on the nonlinear characteristics of the model, an osc...
Optical parametric oscillator-based light source for coherent Raman scattering microscopy: practical overview.
We present the assets and constraints of using optical parametric oscillators (OPOs) to perform point scanning nonlinear microscopy and spectroscopy with special emphasis on coherent Raman spectroscopy. The different possible configurations starting with one OPO and two OPOs are described in detail...
Estimation of task workload from EEG data: new and current tools and perspectives.
We report, as part of the EMBC meeting Cognitive State Assessment (CSA) competition 2011, an empirical comparison using robust cross-validation of the performance of eleven computational approaches to real-time electroencephalography (EEG) based mental workload monitoring on Multi-Attribute Task Bat...