Transient grating (TG) spectroscopy is an important experimental technique to measure mean-free-path (MFP) spectra using observations of quasiballistic heat conduction. To obtain MFP spectra, the measurements must be interpreted within the framework of the frequency-dependent Boltzmann transport equation (BTE), but previous solutions have restricted validity due to simplifying assumptions. Here...

or even complete A-V block. Two cases are reported in which catheter-induced transient high grade Mobitz II A-V block, acute reversible prolongation of infranodal conduction time with probable intra-Hisian conduction delay, and persistent (6 hours duration) complete A-V block occurred in patients with left bundle branch block. The observations made indicate that A-V conduction times and the app...

In dogs under pentobarbital anesthesia, the administration of KCI in single intra-atrial doses of 1 mg/kg produced varying effects on intraventricular conduction depending upon the initial potassium concentration of systemic blood. At normal and moderately increased systemic K concentrations, single injections of KCI improved intraventricular conduction, but at higher systemic K concentrations ...

OBJECTIVE While several studies have demonstrated that the L-type calcium current maintains discontinuous conduction, the contribution of the transient outward current (I(to)) to conduction remains unclear. This study evaluated the effects of I(to) inhibition on conduction between ventricular myocytes. METHODS An electronic circuit with a variable resistance (R(j)) was used to electrically co...

This work aims at the comparison between a classical regularization technique and a method within the Bayesian framework, as applied to the solution of an inverse heat conduction problem. The two solution approaches compared are Alifanov's iterative regularization technique and the Markov chain Monte Carlo method. The inverse problem examined in this work deals with the estimation of a transien...

Nerve conduction velocity has been studied in the ulnar nerve of human subjects before and during anaesthesia. No significant changes in velocity were observed following the administration of thiopentone, nitrous oxide, oxygen and halothane in normal clinical quantities. A transient increase in nerve conduction velocity was noted following the administration of paralytic doses of gallamine trie...

We present the Long Term ST Database, a collection of eighty 24-hour two and three lead ECG records from ambulatory subjects with transient ST segment abnormalities. The database provides a comprehensive standard research resource for quantitatively assessing the performance of automated detectors of transient ischemia, and for supporting basic research into the mechanisms and dynamics of trans...

A combined transient radiation and hyperbolic heat conduction model is developed to predict heat transfer of biological tissue subjected to short pulsed irradiations. Grid systems are compared and simulation results are compared with the experimental data.