نتایج جستجو برای: pump post
تعداد نتایج: 465668 فیلتر نتایج به سال:
Mediastinal radiation is commonly used to treat Hodgkin's and non-Hodgkin's lymphoma, lung and breast cancer. Cardiac complications after radiation therapy are well described, although rare. A large spectrum of injuries can occur, causing long term morbidity among survivors. We describe a case of post-actinic ascending aortic wall thickening that prevented saphenous vein proximal anastomosis an...
A general analytic solution for Brillouin distributed sensing in optical fibers with sub-meter spatial resolution is obtained by solving the acoustical-optical coupled wave equations by a perturbation method. The Brillouin interaction of a triad of square pump pulses with a continuous signal is described, covering a wide range of pumping schemes. The model predicts how the acoustic wave, the si...
Nonlinear pulse post-compression represents an efficient method for ultrashort, high-quality laser production. The temporal quality is, however, limited by amplitude and phase modulations intrinsic to post-compression. We here characterize in frequency time domain with high dynamic range individual post-compressed pulses within bursts comprising 100-kHz-rate trains. spectrally broaden 730 fs, 3...
Background Unaortic coronary artery bypass with all arterial grafts proved to prevent early neurologic injury. Various devices for clampless proximal anastomosis of venous grafts were associated with an increased risk of microembolism. The Cardica PAS-Port is a new, fully automated device that might be able to obtain safe proximal aorto-venous connection without an increased risk of microor mac...
using a new numerical model, the pump-to-signal relative intensity noise (rin) transfer in singlepumpfiber optical parametric amplifiers for low modulation frequencies is investigated. the model includesfiber loss, pump depletion, as well as the gain saturation, and therefore, it can describe the practicalcircumstances associated with various applications of fiber optical parametric amplifiers....
Postoperative cognitive dysfunction (POCD) remains a serious complication with increasing importance. Cerebral dysfunction after surgery presents as stroke, delirium, or POCD. POCD is the post-operative disturbance of memory, and speed of information processing. The incidence of POCD is dependent on the type of procedure. The highest incidence of POCD occurs in patients undergoing cardiac surge...
A 58-year-old woman underwent aortic valve replacement. On the second postoperative day the patient referred a sharply chest pain, and an emergent coronary angiography revealed total occlusion of the right coronary artery. An intra-aortic ballon pump was placed and the patient underwent emergent off-pump coronary revascularization of the right coronary artery. Five hours later, due to unstable ...
The first time-resolved x-ray/optical pump-probe experiments at the SLAC Linac Coherent Light Source (LCLS) used a combination of feedback methods and post-analysis binning techniques to synchronize an ultrafast optical laser to the linac-based x-ray laser. Transient molecular nitrogen alignment revival features were resolved in time-dependent x-ray-induced fragmentation spectra. These alignmen...
This study examines abnormal LFT (mainly bilirubin) on postoperative day three as a predictor of open cardiac surgery mortality.1 Preoperative hyperbilirubinemia, high right atrial pressure, number of heart valves replaced and high blood transfusion requirements are risk factors predicting postoperative hyperbilirubinemia in 81% of all patients.2 This study strictly excluded high-risk condition...
Following the discovery of a powerful venous pump in the foot that is activated by weight-bearing independently of muscular action, a pneumatic impulse device was developed to actuate this pump artificially. In a multicentre international trial the device was shown to reduce post-traumatic and postoperative swelling; pain also was alleviated. Evidence is also presented that dangerously high com...
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