Results 71 to 80 of about 922,025 (371)
BMC Anesthesiology, 2019 BackgroundGoal-directed fluid therapy (GDFT) based on dynamic indicators of fluid responsiveness has been shown to decrease postoperative complications and hospital length of stay (LOS) in patients undergoing major abdominal surgery.
Sean Coeckelenbergh +6 more
semanticscholar +1 more source
Different W cluster deposition regimes in pulsed laser ablation observed by in situ Scanning Tunneling Microscopy [PDF]
Surface Science 601, 1892-1897 (2007), 2007 We report on how different cluster deposition regimes can be obtained and observed by in situ Scanning Tunneling Microscopy (STM) by exploiting deposition parameters in a pulsed laser deposition (PLD) process. Tungsten clusters were produced by nanosecond Pulsed Laser Ablation in Ar atmosphere at different pressures and deposited on Au(111) and HOPG ...
arxiv +1 more source
Laser Absorption Measurements of Electron Density in Nanosecond-ScaleAtmospheric Pressure Pulsed Plasmas [PDF]
, 2021 We report on time-resolved measurements of electron number density by continuous-wave laser absorption in a low-energy nanosecond-scale laser-produced spark in atmospheric pressure air. Laser absorption is a result of free-free and bound-free electron excitation, with the absorption coefficient modeled and evaluated using estimates of the time ...
arxiv +1 more source
Abnormal wave reflections and left ventricular hypertrophy late after coarctation of the aorta repair [PDF]
, 2017 Patients with repaired coarctation of the aorta are thought to have increased afterload due to abnormalities in vessel structure and function. We have developed a novel cardiovascular magnetic resonance protocol that allows assessment of central ...
Khushnood, Abbas +7 more
core +2 more sources
Evaluation of systolic pressure variation and pulse pressure variation in an experimental model of acute normovolemic hemodilution [PDF]
Critical Care, 2008 Dynamic indicators derived from the arterial pressure waveform analysis as systolic pressure variation (SPV) and pulse pressure variation (PPV) have been shown to be a useful tool to optimize tissue perfusion in clinical and experimental studies. These indicators, however, have not been adequately explored in situations of acute variation of blood ...
JO Auler +3 more
openaire +2 more sources
Reversal of aging-induced increases in aortic stiffness by targeting cytoskeletal protein-protein interfaces [PDF]
, 2018 BACKGROUND: The proximal aorta normally functions as a critical shock absorber that protects small downstream vessels from damage by pressure and flow pulsatility generated by the heart during systole.
Chiu, Joanna +10 more
core +4 more sources
The effect of positive end-expiratory pressure on pulse pressure variation
Southern African Journal of Anaesthesia and Analgesia, 2012 Objectives: To determine the effect of different levels of positive end-expiratory pressure (PEEP) on pulse pressure variation (PPV).Design: An observational study. Setting: Operating theatres of a tertiary training hospital.Subjects: Ventilated patients who required intra-arterial blood pressure monitoring.Outcome measures: PPV during different levels
Smith, Francois Jacobus +3 more
openaire +3 more sources
Injectable Bubbles for Physiological Pressure Measurement [PDF]
arXiv, 2022 Microbubbles - used as contrast agents in ultrasound imaging - are important tools in biomedical research, having been used together with ultrasound to develop significant diagnostic and therapeutic techniques. It has been suggested that the dynamic behaviour of microbubbles is dependent on the surrounding fluid's ambient (hydrostatic) pressure, and ...
arxiv
AIP Advances, 2020 Corona discharge, an inevitable phenomenon, may lead to insulation degradation, threatening the safe and reliable operation of gas-insulated power equipment. The pulse stage is a complex but usual discharge process in corona discharge.
Yanliang He +5 more
doaj +1 more source
Pulse-pressure variation and hemodynamic response in patients with elevated pulmonary artery pressure: a clinical study [PDF]
, 2010 Pulse-pressure variation (PPV) due to increased right ventricular afterload and dysfunction may misleadingly suggest volume responsiveness. We aimed to assess prediction of volume responsiveness with PPV in patients with increased pulmonary artery ...
Baenziger, Bertram +9 more
core +2 more sources