Results 21 to 30 of about 12,927 (254)

Different patterns of respiration in rat lines selectively bred for high or low anxiety. [PDF]

open access: yesPLoS ONE, 2013
In humans, there is unequivocal evidence of an association between anxiety states and altered respiratory function. Despite this, the link between anxiety and respiration has been poorly evaluated in experimental animals.
Luca Carnevali   +5 more
doaj   +1 more source

Wireless, Portable Fiber Bragg Grating Interrogation System Employing Optical Edge Filter

open access: yesSensors, 2019
A small-size, high-precision fiber Bragg grating interrogator was developed for continuous plethysmograph monitoring. The interrogator employs optical edge filters, which were integrated with a broad-band light source and photodetector to demodulate the ...
Ken Ogawa   +5 more
doaj   +1 more source

Phantom with Pulsatile Arteries to Investigate the Influence of Blood Vessel Depth on Pulse Oximeter Signal Strength

open access: yesSensors, 2012
This paper describes a three-layer head phantom with artificial pulsating arteries at five different depths (1.2 mm, 3.7 mm, 6.8 mm, 9.6 mm and 11.8 mm).
Hunor Santha   +2 more
doaj   +1 more source

Ventilatory Phenotypes among Four Strains of Adult Rats. [PDF]

open access: yes, 2002
Our purpose in this study was to identify different ventilatory phenotypes among four different strains of rats. We examined 114 rats from three in-house, inbred strains and one outbred strain: Brown Norway (BN;n = 26), Dahl salt-sensitive (n = 24), Fawn-
Dwinell, Melinda R.   +4 more
core   +2 more sources

Expert Hypertension Detection System Featuring Pulse Plethysmograph Signals and Hybrid Feature Selection and Reduction Scheme

open access: yesSensors, 2021
Hypertension is an antecedent to cardiac disorders. According to the World Health Organization (WHO), the number of people affected with hypertension will reach around 1.56 billion by 2025.
Muhammad Umar Khan   +6 more
doaj   +1 more source

Analgesic and anti-inflammatory effects of aqueous extract of leaves of Pentatropis capensis Linn. f. (Bullock)

open access: yesAncient Science of Life, 2014
Background: Herbal analgesic and anti-inflammatory remedies are preferred much because of lesser side effects and also a lower tendency for habit formation.
Saikat Chowdhury   +2 more
doaj   +1 more source

Volatile anesthetics maintain tidal volume and minute ventilation to a greater degree than propofol under spontaneous respiration

open access: yesBMC Anesthesiology, 2021
Background Although general anesthetics depress spontaneous respiration, the comprehensive effect of general anesthetics on respiratory function remains unclear. We aimed to investigate the effects of general anesthetics on spontaneous respiration in non-
Xuechao Hao   +3 more
doaj   +1 more source

Laser Doppler flow measurements with a semiconductor laser [PDF]

open access: yes, 1986
A computer controlled mechanical lung model has been developed for testing lung function equipment, validation of computer programs and simulation of impaired pulmonary mechanics. The construction, function and some applications are described.
Aarnoudse, J.G.   +5 more
core   +6 more sources

Relationship between Estimated Glomerular Filtration Rate (eGFR) and Metabolic Syndrome in Japanese [PDF]

open access: yes, 2010
We investigated the link between renal function as evaluated by estimated glomerular filtration rate (eGFR) and metabolic syndrome in Japanese.
Makino, Hirofumi   +3 more
core   +1 more source

Estimation of airway obstruction using oximeter plethysmograph waveform data

open access: yesRespiratory Research, 2005
Background Validated measures to assess the severity of airway obstruction in patients with obstructive airway disease are limited. Changes in the pulse oximeter plethysmograph waveform represent fluctuations in arterial flow.
Desmond Renee' A   +3 more
doaj   +1 more source

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