Results 61 to 70 of about 877,845 (325)

Cuffless Blood Pressure Estimation Using Pressure Pulse Wave Signals

open access: yesSensors, 2018
Pulse transit time (PTT) has received considerable attention for noninvasive cuffless blood pressure measurement. However, this approach is inconvenient to deploy in wearable devices because two sensors are required for collecting two-channel ...
Zeng-Ding Liu   +5 more
doaj   +1 more source

On axoplasmic pressure waves and their possible role in nerve impulse propagation

open access: yes, 2010
It is suggested that the propagation of the action potential is accompanied by an axoplasmic pressure pulse propagating in the axoplasm along the axon length.
Rvachev, Marat M.
core   +1 more source

Matrigel inhibits elongation and drives endoderm differentiation in aggregates of mouse embryonic stem cells

open access: yesFEBS Open Bio, EarlyView.
Stem cell‐based embryo models (SCBEMs) are valuable to study early developmental milestones. Matrigel, a basement membrane matrix, is a critical substrate used in various SCBEM protocols, but its role in driving stem cell lineage commitment is not clearly defined.
Atoosa Amel   +3 more
wiley   +1 more source

Field mapping of ballistic pressure pulse sources

open access: yesCurrent Directions in Biomedical Engineering, 2015
Ballistic pressure pulse sources are used since late 1990s for the extracorporeal treatment of chronic Enthesitis. Newly indications are found in trigger-point-therapy for the treatment of musculoskeletal disorders. In both applications excellent results
Rad Abtin Jamshidi, Ueberle Friedrich
doaj   +1 more source

Relationship of Ocular Pulse Amplitude with Eye Structures and Systemic Blood Pressure

open access: yesTürk Oftalmoloji Dergisi, 2011
Pur po se: To assess the relationship of ocular pulse amplitude with eye structures and systemic blood pressure in healthy subjects. Ma te ri al and Met hod: Fifty-one healthy subjects were included in the study.
Ebru Nevin Çetin   +4 more
doaj   +1 more source

Long-pulse KrCl laser with a high discharge quality \ud [PDF]

open access: yes, 2007
The discharge quality and optimum pump parameters of a long-pulse high-pressure gas discharge excited KrCl laser are investigated. A three-electrode prepulse–mainpulse excitation circuit is employed as pump source.
Bastiaens, H.M.J.   +4 more
core   +3 more sources

Pulse Pressure, White Matter Hyperintensities, and Cognition: Mediating Effects Across the Adult Lifespan

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives To investigate whether pulse pressure or mean arterial pressure mediates the relationship between age and white matter hyperintensity load and to examine the mediating effect of white matter hyperintensities on cognition. Methods Demographic information, blood pressure, current medication lists, and Montreal Cognitive Assessment ...
Jade Hannan   +8 more
wiley   +1 more source

2.2 TRANSFER FUNCTION-DERIVED CENTRAL PRESSURE AND CARDIOVASCULAR EVENTS: THE FRAMINGHAM HEART STUDY

open access: yesArtery Research, 2013
Relations between central versus brachial blood pressure and major cardiovascular disease (CVD) events remain controversial. Central measures derived using radial tonometry and a generalized transfer function as implemented using the SphygmoCor device ...
G.F. Mitchell   +7 more
doaj   +1 more source

Cervical Spinal Cord Magnetization Transfer Ratio and Its Relationship With Clinical Outcomes in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The cervical spinal cord (cSC) is highly relevant to clinical dysfunction in multiple sclerosis (MS) but remains understudied using quantitative magnetic resonance imaging (MRI). We assessed magnetization transfer ratio (MTR), a semi‐quantitative MRI measure sensitive to MS‐related tissue microstructural changes, in the cSC and its ...
Lisa Eunyoung Lee   +26 more
wiley   +1 more source

P3.19 AORTIC PULSE PRESSURE BETTER PREDICTS INCREASES ARTERIAL STIFFNESS COMPARED TO BRACHIAL AND AMBULATORY MEASUREMENTS

open access: yesArtery Research, 2013
Objectives: Hypertension is associated with increased arterial stiffness, which is an independent predictor of cardiovascular risk. Aortic systolic blood pressure (SBP) and/or pulse pressure (PP) better predicts cardiovascular events than peripheral ...
D. Terentes-Printzios   +8 more
doaj   +1 more source

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