Results 41 to 50 of about 925,843 (350)

Picosecond ionization dynamics in femtosecond filaments at high pressures [PDF]

open access: yes, 2017
We investigate the plasma dynamics inside a femtosecond-pulse-induced filament generated in an argon gas for a wide range of pressures up to 60 bar. At higher pressures, we observe ionization immediately following a pulse, with up to a threefold increase
Gaeta, AL   +9 more
core   +1 more source

Association of pulse pressure with hematoma expansion in patients with spontaneous supratentorial intracerebral hemorrhage

open access: yesFrontiers in Neurology
ObjectiveRecent reports have demonstrated that a wider pulse pressure upon admission is correlated with heightened in-hospital mortality following spontaneous supratentorial intracerebral hemorrhage (ssICH).
Chao-Ying Wang   +7 more
doaj   +1 more source

Incidence of Peripheral Arterial Disease and Its Association with Pulse Pressure: A Prospective Cohort Study

open access: yesFrontiers in Endocrinology, 2017
BackgroundThe association of pulse pressure and peripheral arterial disease (PAD) has seldom been examined using a prospective design. This study aimed to investigate the association of pulse pressure with PAD incidence in an elderly general population ...
Yong Mao   +6 more
doaj   +1 more source

Brachialis Pulse Wave Measurements with Ultra-Wide Band and Continuous Wave Radar, Photoplethysmography and Ultrasonic Doppler Sensors

open access: yesSensors, 2020
The measurement and analysis of the arterial pulse wave provides information about the state of vascular health. When measuring blood pressure according to Riva-Rocci, the systolic and diastolic blood pressure is measured non-invasively with an ...
Horst Hellbrück   +3 more
doaj   +1 more source

Pressure Pulse in Small Arteries [PDF]

open access: yesCirculation Research, 1962
Pressure pulse contours have been obtained in the small mesenteric and intestinal arteries of the dog. The principal change in the pressure pulse during transmission from large to small arteries appeared to be the gradual and progressive development of damping. The pressure drop from the aorta to arteries of 200 µ internal diameter averaged 17 per cent
T, SUGIURA, E D, FREIS
openaire   +2 more sources

Composite pressure cell for pulsed magnets

open access: yesReview of Scientific Instruments, 2021
Extreme pressures and high magnetic fields can affect materials in profound and fascinating ways. However, large pressures and fields are often mutually incompatible; the rapidly changing fields provided by pulsed magnets induce eddy currents in the metallic components used in conventional pressure cells, causing serious heating, forces, and vibration.
Dan Sun   +5 more
openaire   +4 more sources

Gut microbiota diversity is prognostic in metastatic hormone receptor‐positive breast cancer patients receiving chemotherapy and immunotherapy

open access: yesMolecular Oncology, EarlyView.
In this exploratory study, we investigated the relationship between the gut microbiota and outcome in patients with metastatic hormone receptor‐positive breast cancer, treated in a randomized clinical trial with chemotherapy alone or chemotherapy in combination with immune checkpoint blockade.
Andreas Ullern   +7 more
wiley   +1 more source

Ear oximeter-transducer monitors four physiological responses [PDF]

open access: yes, 1972
Device monitors blood oxygen saturation, blood pressure, pulse rate, and pulse-pressure curve during conditions of high stress in simulated space ...
Smith, J. R., Jr.
core   +1 more source

Evaluation of the Linear Relationship Between Pulse Arrival Time and Blood Pressure in ICU Patients: Potential and Limitations [PDF]

open access: yes, 2018
A variety of techniques based on the indirect measurement of blood pressure (BP) by Pulse Transit Time (PTT) have been explored over the past few years.
Braiam Escobar-Restrepo   +3 more
core   +2 more sources

Comparison of vena cava distensibility index and pulse pressure variation for the evaluation of intravascular volume in critically ill children

open access: yesJornal de Pediatria, 2022
Objective: In this study, the authors aimed to evaluate the effectiveness of the vena cava distensibility index and pulse pressure variation as dynamic parameters for estimating intravascular volume in critically ill children.
Başak Akyıldız, Serkan Özsoylu
doaj   +1 more source

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