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Welcome to the Pubget Medical Subject Headings (MESH) browser. Click on a topic or subtopic below to explore related papers. In the gold box is the most recent paper about the current MESH term, and below are 20 related papers.
Oscillometry (0):
Recent article
Oscillometry
Abstract
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...
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PMID: 21428520
PDF is available here.
PDF is available here.
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Abstract
We propose a mechanism to rectify charge transport in the semiclassical Holstein model. It is shown that localized initial conditions associated with a polaron solution, in conjunction with static electron on-site potential not having inversion symmetry, constitute minimal prerequisites for the emer...
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PMID: 21517468
PDF is available here.
PDF is available here.
Abstract
We explore the issue of a quantum-noise-induced directed transport of an overdamped Brownian particle that is allowed to move in a spatially periodic potential. The established system-reservoir model has been employed here to study the quantum-noise-induced transport of a Brownian particle in a peri...
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PMID: 21517472
PDF is available here.
PDF is available here.
Audio, Transactions of the IRE Professional Group on (47 Suppl 2) 2011
Abstract
The small airways are those with an internal diameter of less than 2 mm. The contribution of these airways to total airflow resistance is small in healthy individuals but can represent 50-90 % of total airflow resistance in asthmatics. Suspicion of small airways disease has been base...
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PMID: 21640279
PDF is available here.
PDF is available here.
Abstract
Neurophysiological experiments on anesthetized rats were used to study the effects of various doses (12.5, 25, 37.5 mg/kg, i.v.) of drug composition migrepin (representing a combination of potassium-2,4-dichlorobenzoate, carbamazepine, and caffeine) on background firing of the trigeminal nucleus caud...
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PMID: 21809692
PDF is available here.
PDF is available here.
Abstract
Listening to Korotkoff sounds (K-sounds) to determine systolic and diastolic blood pressure (BP) has been the standard for noninvasive BP measurement in medical practices for nearly 100 years. It is the essential tool used for evaluation and assessment of patients with hypertension a...
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PMID: 21269907
PDF is available here.
PDF is available here.
Abstract
Abstract
Indirect blood pressure measurements using high definition oscillometric (HDO) and Doppler devices were compared in 50 anaesthetised client-owned cats presented for various surgical procedures. Sites of cuff placement for Doppler were identified as forelimb and hindlimb and for HDO as forelimb and t...
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PMID: 20615734
PDF is available here.
PDF is available here.
Optics Express (18)20 2010
Abstract
We demonstrate imaging through a turbid layer by using digital phase conjugation of the second harmonic field radiated from a beacon nanoparticle. We show that the phase-conjugated focus can be displaced from its initial position by illuminating the same region of the turbid layer with an angular of...
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PMID: 20940968
PDF is available here.
PDF is available here.
Optics Express (18)20 2010
Abstract
A new method that extracts phase directly from randomly phase-shifted interferograms is proposed. In this method, the background intensity and the modulation amplitude are determined by a temporal method and used as the system parameters and then the phase is extracted from one single interferogram...
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PMID: 20940956
PDF is available here.
PDF is available here.
Optics Express (18)20 2010
Abstract
Based on the waveguide mode (WGM) method, coupling interaction of electromagnetic wave in a groove doublet configuration is studied. The formulation obtained by WGM method for a single groove [Prog. Electromagn. Res. 18, 1-17 (1998)] is extended to two grooves. By exploring the total scattered field...
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PMID: 20941004
PDF is available here.
PDF is available here.
Optics Express (18)20 2010
Abstract
We present a novel approach of fast ellipsometric measurements. Instead of a conventional setup that uses a standard photo-elastic modulator, we use a 92 kHz Single Crystal Photo-Elastic Modulator (SCPEM), which is a LiTaO3 crystal with a size of 28 × 9 × 4 mm. This small, simple, and cost-effecti...
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PMID: 20941038
PDF is available here.
PDF is available here.
Optics Express (18)18 2010
Abstract
We demonstrate the possibility to rotate the polarization of linearly polarized THz pulses via the accurate control of the 2-color filament surrounding gas pressure. We also show ways to produce elliptically and circularly polarized THz pulses.
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PMID: 20940782
PDF is available here.
PDF is available here.
Optics Express (18)18 2010
Abstract
We report on substantial pulse energy increase in Yb:KYW femtosecond laser oscillators by utilizing multiple laser crystals for an enhanced net-gain at higher pump power. The two-crystal oscillator generates pulse energies of 7 µJ at 1 MHz repetition rate which is, to our knowledge the highest ener...
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PMID: 20940804
PDF is available here.
PDF is available here.
Optics Express (18)18 2010
Abstract
We present a new method to broaden the amplification range in optical parametric amplification toward the bandwidth needed for single cycle femtosecond pulses. Two-color pumping of independent stages is used to sequentially amplify the long and short wavelength parts of the ultrabroadband seed pulse...
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PMID: 20940768
PDF is available here.
PDF is available here.
Optics Express (18)18 2010
Abstract
We demonstrate in situ and real time characterization of two-photon polymerization (TPP) by means of broadband coherent anti-Stokes Raman scattering (CARS) microscopy. The same experimental setup based on one femtosecond oscillator is used to perform both TPP and broadband CARS microscopy. We perfor...
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PMID: 20940818
PDF is available here.
PDF is available here.
Optics Express (18)18 2010
Abstract
We propose a scheme for achieving widefield coherent anti-Stokes Raman scattering (CARS) microscopy images with sub-diffraction-limited resolution. This approach adds structured illumination to the widefield CARS configuration [Applied Physics Letters 84, 816 (2004)]. By capturing a number of images...
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PMID: 20940822
PDF is available here.
PDF is available here.
Optics Express (18)18 2010
Abstract
We present a new method to make liquid lenses. It is based on the microfluidics method and involves the preparation of emulsions one drop at a time. Tests of lenses by image formation are presented. Experimental results are compared with results of an optical design program. We also present a new ty...
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PMID: 20940763
PDF is available here.
PDF is available here.
Abstract
To determine whether veterinary-specific oscillometric blood pressure units yield measurements that are in good agreement with directly measured blood pressures in cats.
Evaluation study.
21 cats undergoing routine spaying or neutering.
A 24-gauge catheter was inserted in a dorsal pedal artery, and...
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PMID: 20707750
PDF is available here.
PDF is available here.
Abstract
Most clinical offices rely on automated oscillometric devices to measure blood pressure (BP), but the accuracy of this technique versus auscultatory determination using a mercury manometer is controversial. To assess the accuracy of automated oscillometric readings, BP was measured from the same sit...
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PMID: 20643251
PDF is available here.
PDF is available here.
Respirology (15)6 2010
Abstract
Application of IOS for the assessment of respiratory health in firefighters identified airways dysfunction in some individuals, even when spirometry values were within the normal range and there were no respiratory symptoms....
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PMID: 20630029
PDF is available here.
PDF is available here.
Abstract
The KD-5915 device successfully passed phase 1 of the validation study with a number of absolute differences between the device and observers within 5, 10, and 15 mmHg for at least 27 of 45, 34 of 45, and 43 of 45 measurements, respectively. The device also achieved the targets for phase 2.1, with 6...
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PMID: 20658765
PDF is available here.
PDF is available here.
Abstract
We used ultrasonic measurements to monitor the influence of power density and primer application on the polymerization reaction of dual-cured resin cements. The ultrasonic equipment comprised a pulser-receiver, transducers, and an oscilloscope. Resin cements were mixed and inserted into a transparen...
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PMID: 20662917
PDF is available here.
PDF is available here.
Abstract
Abstract
The newly developed rapid oscillometric blood pressure measurement can be useful for perioperative management especially in atherosclerotic patients....
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PMID: 20715542
PDF is available here.
PDF is available here.
Abstract
We used the neocortical slow oscillation in vitro as a model system to show that weak sinusoidal and naturalistic EFs enhance and entrain physiological neocortical network activity with an amplitude threshold within the range of in vivo endogenous field strengths. Modulation of network activity by p...
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PMID: 20624597
PDF is available here.
PDF is available here.
Abstract
All within- and between-day coefficients of variation (CVs) for SAP were < 15% irrespective of the observer or method (HDO, 3.6% to 14.1%; DU, 4.1% to 12.4%). Conversely, half the CVs for DAP were > 15% with the highest within- and between-day CVs obtained by the least experienced observer by use of...
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PMID: 20594078
PDF is available here.
PDF is available here.
Abstract
A recent paper by Zinin [Phys. Rev. E 79, 021910 (2009)] regarding the dynamics of biological cells in an acoustic field draws conclusions that we find open to debate. The present paper examines these conclusions and addresses some findings.
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PMID: 20866673
PDF is available here.
PDF is available here.
Abstract
The intermethod reliability was bad (R = .346, 95% CI = (0.268-0.420)), with a large confidence interval of the individual differences between the 2 methods: 95% CI = (-0.183-0.346). CONCLUSION: Automatic oscillometric devices cannot be recommended as reliable methods for ABPI measurement....
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PMID: 20211935
PDF is available here.
PDF is available here.
Abstract
We show that in the NF-kappaB signaling system, the precise timing of a dual-delayed negative feedback motif [involving stochastic transcription of inhibitor kappaB (IkappaB)-alpha and -epsilon] is optimized to induce heterogeneous timing of NF-kappaB oscillations between individual cells. We sugges...
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PMID: 20534546
PDF is available here.
PDF is available here.
Abstract
Agreement between the direct and indirect BP measurements was determined by the Bland-Altman method. The SAP and MAP but not DAP bias varied significantly between each BP state. Normotensive absolute biases (mean [SD]) for SAP, MAP, and DAP were -14.7 mm Hg (15.5 mm Hg), -16.4 mm Hg (12.1 mm Hg), an...
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PMID: 20636984
PDF is available here.
PDF is available here.
Abstract
When a firefly is made to inhale ethyl acetate vapour, a constant glow appears after a few minutes from its abdominal lantern. This control experiment has been performed by a few workers to record the emission spectrum of the firefly. However, a time-resolved experiment performed by us on this conti...
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PMID: 20689174
PDF is available here.
PDF is available here.
Optics Express (18)11 2010
Abstract
We study the relaxation oscillations in a continuous-wave intracavity Raman laser both theoretically and experimentally. Analytic expressions for the relaxation oscillation frequency are derived from the rate-equations and are validated by experiments. We show that some important experimental parame...
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PMID: 20589014
PDF is available here.
PDF is available here.
Optics Express (18)11 2010
Abstract
We report the realization of coherent electro-optical detection of nanosecond terahertz (THz) pulses from an optical parametric oscillator, which is pumped by a Q-switched nanosecond Nd:YVO4 laser at 1064 nm and emits at approximately 1.5 THz. The beam profile and wavefront of the THz beam at focus...
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PMID: 20588993
PDF is available here.
PDF is available here.
Optics Express (18)11 2010
Abstract
We report more than 1.1 Watt of idler power at 3373 nm in a singly resonant optical parametric oscillator (SRO), directly pumped by a single-frequency monolithic tapered diode laser. The SRO is based on a periodically poled MgO:LiNbO3 crystal in a four mirror cavity and is excited by 8.05 W of 1062...
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PMID: 20588971
PDF is available here.
PDF is available here.
Optics Express (18)10 2010
Abstract
Resonant output energy enhancement in a singly resonant nondegenerate type-I optical parametric oscillator with a volume Bragg grating output coupler is demonstrated. The resonances occur when the pump laser and parametric oscillator cavity length ratio is an integer or a fraction of small integers....
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PMID: 20588926
PDF is available here.
PDF is available here.
Journal of Endodontics (36)5 2010
Abstract
At higher generator powers, energy delivered to the file is dissipated in unwanted vibration resulting in reduced vibration displacement amplitudes. This may reduce the occurrence of the biophysical forces necessary to maximize the technique's effectiveness.
Copyright (c) 2010 American Association...
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PMID: 20416438
PDF is available here.
PDF is available here.
Abstract
We discuss the biochemical three-dimensional reaction-diffusion model, which does not provide temporal self-sustained oscillations via reaction terms. However, the self-sustained oscillations and waves could be obtained using the proper boundary conditions for systems with a finite thickness. We hav...
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PMID: 20866284
PDF is available here.
PDF is available here.
Abstract
A non-invasive piezo-film-based measurement method for haemodynamic assessment is proposed. The design of a system, able to reconstruct the blood pressure waveform online by dealing with problems arising from the piezo-film capacitive nature in the targeted frequency range (from quasi-dc up to 12 Hz...
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PMID: 20395651
PDF is available here.
PDF is available here.
Abstract
A spin decoupling method in nuclear quadrupole resonance spin echo experiment is used to detect the proton magnetic resonance absorption spectrum. The behavior of proton resonance in alpha phase of polycrystalline p-dichlorobenzene as a function of the intensity of the proton decoupling oscillating...
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PMID: 20207179
PDF is available here.
PDF is available here.
Abstract
The problem of nonstationary wave radiation in an infinitely long thick-wall piezoelectric cylinder in fluid medium is considered. The influence of an oscillating circuit with lumped parameters on characteristics of transient process is taken into consideration. Problem formulation is executed withi...
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PMID: 20370009
PDF is available here.
PDF is available here.
Abstract
These results support the notion that SFOAE delays provide a noninvasive measure of the sharpness of cochlear tuning....
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PMID: 20370023
PDF is available here.
PDF is available here.
Abstract
Abstract
Pd/Al(2)O(3) catalysts showed an oscillatory behaviour during the catalytic partial oxidation (CPO) of methane, which was investigated simultaneously by IR-thermography, X-ray absorption spectroscopy, and online mass-spectrometry to correlate the temperature, state of the catalyst and catalytic perf...
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PMID: 20449341
PDF is available here.
PDF is available here.
Abstract
A reductionist approach was presented to investigate which level of detail of the physiological muscle is required for stable locomotion. Periodic movements of a simplified one-dimensional hopping model with a Hill-type muscle (one contractile element, neither serial nor parallel elastic elements) w...
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PMID: 20185859
PDF is available here.
PDF is available here.
Abstract
Whole-breath impulse oscillation system analysis failed to discriminate between patients with asthma and those with COPD. Inspiratory-expiratory X5 analysis differentiated patients with asthma from those with COPD presumably reflecting enhanced dynamic airway narrowing on expiration in COPD. Further...
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PMID: 20335298
PDF is available here.
PDF is available here.
Health reports / Statistics Canada, Canadian Centre for Health Information = Rapports sur la sante / Statistique Canada, Centre canadien d'information sur la sante (21)1 2010
Abstract
The BP and HR of almost all respondents who attended the examination centre were measured. Only one series of measurements was taken for 88% of respondents. The series was repeated for around 5% with variability in their BP or HR measurements. About 3% had HR or BP values above the screening cut-off...
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PMID: 20426229
PDF is available here.
PDF is available here.
Abstract
These findings suggest that ciclesonide improves small airway function and inflammation compared with fluticasone propionate in mild asthma. This study provides evidence that IOS and late-phase induced sputum allows detection of changes in the small airways that can not be detected by spirometry....
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PMID: 20035146
PDF is available here.
PDF is available here.
Optics Express (18)5 2010
Abstract
We therefore prove the application of this novel pump geometry provides opportunities for power-scaling of synchronously pumped OPO systems together with enhanced nonlinear conversion efficiency through relaxed damage threshold intensity conditions....
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PMID: 20389413
PDF is available here.
PDF is available here.
Abstract
The integration of medical linear accelerators (linac) with magnetic resonance imaging (MRI) systems is advancing the current state of image-guided radiotherapy. The MRI in these integrated units will provide real-time, accurate tumor locations for radiotherapy treatment, thus decreasing geometric m...
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PMID: 20071754
PDF is available here.
PDF is available here.
Abstract
Rat astrocytes can be efficiently transfected using MNPs with applied static/oscillating fields; the latter effect is frequency dependent. Transfected astrocytes could survive and differentiate following introduction into 3D neural tissue arrays. CONCLUSION: MNP vectors can safely and effectively tr...
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PMID: 20148634
PDF is available here.
PDF is available here.
Abstract
This study indicates that there are differences between V25/Ht and IOS values because of the difference in breathing conditions during measurements....
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PMID: 20169952
PDF is available here.
PDF is available here.
Optics Express (18)2 2010
Abstract
We report a solution to the long standing problem of the occurrence of spontaneous and long-lived bursts of relaxation oscillations which occur when a continuous-wave optical parametric oscillator is operated within the cavity of the parent pump-laser. By placing a second nonlinear crystal within th...
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PMID: 20173961
PDF is available here.
PDF is available here.
Optics Express (18)2 2010
Abstract
We report a high power narrow-linewidth source at approximately 2 microm based on a Tm-doped fiber distributed-feedback master-oscillator and three Tm fiber amplifier stages. The master-oscillator and first two amplifier stages were in-band pumped by Er,Yb fiber lasers operating at 1565 nm, and the...
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PMID: 20173987
PDF is available here.
PDF is available here.
Optics Express (18)2 2010
Abstract
We report a mid-infrared, CW singly resonant optical parametric oscillator (OPO) with a thermally induced waveguide in its gain crystal. We measured a numerical aperture of 0.0062 for the waveguide at 80-W intracavity power at 3.2 microm. This thermal-guiding effect benefits to the stable operation...
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PMID: 20173959
PDF is available here.
PDF is available here.
Abstract
We investigated whether sustained event-related fields (ERFs) measured during working memory maintenance can be explained by modulations in oscillatory power. In particular, we focused on contralateral delayed activity (CDA) typically observed in working memory tasks in which hemifield specific atte...
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PMID: 20080773
PDF is available here.
PDF is available here.
Abstract
Single blood pressure readings, taken with oscillometric monitors in subjects with atrial fibrillation differ, often markedly, from those taken manually. Health care professionals should record multiple readings manually, using validated instruments when making therapeutic decisions....
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PMID: 20144271
PDF is available here.
PDF is available here.
Terapevticheskii arkhiv (82)2 2010
Abstract
It is currently shown that endothelial function study is a rather informative way of assessing the cardiovascular risk. Many investigations have shown the high rate of endothelial dysfunction (ED) in systemic lupus erythematosus (SLE); however, clinical data on ED in patients with SLE are scarce; wh...
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PMID: 20387683
PDF is available here.
PDF is available here.
Abstract
We report on the realization of a 6.834-GHz synthesis chain for the trapped atom clock on a chip (TACC) that is being developed at LNE-SYRTE. The chain is based on the frequency multiplication of a 100-MHz reference signal to obtain a signal at 6.4 GHz. It uses a comb generator based on a monolithic...
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PMID: 20040431
PDF is available here.
PDF is available here.
Abstract
This paper reports on the first demonstration of a 1.05-GHz microelectromechanical (MEMS) oscillator based on lateral-field-excited (LFE) piezoelectric AlN contourmode resonators. The oscillator shows a phase noise level of -81 dBc/Hz at 1-kHz offset frequency and a phase noise floor of -146 dBc/Hz,...
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PMID: 20040430
PDF is available here.
PDF is available here.