Results 31 to 40 of about 640,436 (346)

Pulse mode operation of Love wave devices for biosensing applications [PDF]

open access: yes, 2001
In this work we present a novel pulse mode Love wave biosensor that monitors both changes in amplitude and phase. A series of concentrations of 3350 molecular weight poly(ethylene glycol) (PEG) solutions are used as a calibration sequence for the pulse ...
Gizeli, E   +4 more
core   +1 more source

Traditional practices and recent advances in Nadi Pariksha: A comprehensive review

open access: yesJournal of Ayurveda and Integrative Medicine, 2019
The significance of Nadi Pariksha is well understood and effectively used by Ayurveda practioners for assessing Tridoshas and various physiological and psychological states of the patient.
P. Venkata Giri Kumar   +2 more
doaj   +1 more source

Pulse waves in prestressed arteries

open access: yesBulletin of Mathematical Biology, 1987
The propagation of waves in an arterial wall which is subjected to large initial inflation and extension is considered. The wall is composed of incompressible, homogeneous, isotropic elastic materials and is sufficiently thick to be regarded as a thick hollow cylinder and not as a thin cylindrical shell.
ERBAY, HA, ERBAY, S, DEMIRAY, H
openaire   +4 more sources

Extraction and Evaluation of Discriminative Indexes of the Wearing Condition for High-Precision Blood Pressure Pulse Wave Measurement

open access: yesMicromachines, 2022
In this paper, we report a new discriminant index for evaluating the wearing condition of a blood pressure pulse wave measurement device with small variability.
Yosuke Osawa, Tetsuji Dohi
doaj   +1 more source

Central Hemodynamics in Relation to Circulating Desphospho‐Uncarboxylated Matrix Gla Protein: A Population Study

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2019
Background Stiffening and calcification of the large arteries are forerunners of cardiovascular complications. MGP (Matrix Gla protein), which requires vitamin K–dependent activation, is a potent locally acting inhibitor of arterial calcification.
Fang‐Fei Wei   +11 more
doaj   +1 more source

The Effect of an Angiotensin Receptor Blocker on Arterial Stiffness in Type 2 Diabetes Mellitus Patients with Hypertension [PDF]

open access: yesDiabetes & Metabolism Journal, 2011
BackgroundHypertension and type 2 diabetes mellitus are major risk factors for cardiovascular disease. This study analyzed the changes in central aortic waveforms and pulse wave velocity as well as related parameters after treatment with valsartan, an ...
Ji Hyun Kim   +8 more
doaj   +1 more source

Blood Pressure Estimation by Photoplethysmogram Decomposition into Hyperbolic Secant Waves

open access: yesApplied Sciences, 2022
Photoplethysmographic (PPG) pulses contain information about cardiovascular parameters. In particular, blood pressure can be estimated using PPG pulse decomposition analysis, which assumes that a PPG pulse is composed of the original heart ejection blood
Takumi Nagasawa   +7 more
doaj   +1 more source

Self-similar wave breaking in dispersive Korteweg-de Vries hydrodynamics

open access: yes, 2018
We discuss the problem of breaking of a nonlinear wave in the process of its propagation into a medium at rest. It is supposed that the profile of the wave is described at the breaking moment by the function $(-x)^{1/n}$ ($x0$, negative pulse) of the ...
Kamchatnov, A. M.
core   +1 more source

Pulse Wave Velocities Derived From Cuff Ambulatory Pulse Wave Analysis [PDF]

open access: yesHypertension, 2019
Pulse wave velocity (PWV), a measure of arterial stiffness, is an independent risk factor for cardiovascular morbidity and mortality. We investigated the relationship of ambulatory brachial cuff-based oscillometric PWV (oPWV) to 2 known correlates: age and brachial systolic blood pressure (SBP).
Joseph E. Schwartz   +2 more
openaire   +3 more sources

Parametric Frequency Conversion of Short Optical Pulses Controlled by a CW Background [PDF]

open access: yes, 2007
We predict that parametric sum-frequency generation of an ultra-short pulse may result from the mixing of an ultra-short optical pulse with a quasi-continuous wave control.
Baronio, Fabio   +3 more
core   +4 more sources

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