Mass-independent Dunham analysis of the known electronic states of platinum sulfide, PtS, and analysis of the electronic field-shift effect.

Several new vibrational bands of the [12.5] Ω = 0-XΣ and the [15.9] B Ω = 0-XΣ transitions have been observed in high resolution absorption measurements recorded using Intracavity Laser Spectroscopy (ILS).

Assessment of Common Criteria for Awake Extubation in Infants and Young Children.

Background: Practice patterns surrounding awake extubation of pediatric surgical patients remain largely undocumented. This study assessed the value of commonly used predictors of fitness for extubation to determine which were most salient in predicting successful extubation following emergence from general anesthesia with a volatile anesthetic in young children.

Methods: This prospective, observational study was performed in 600 children from 0 to 7 yr of age.

The spin-forbidden a Σ-X Π transition of GeH detected in absorption using intracavity laser spectroscopy.

The a Σ-X Π transition of GeH has been recorded in absorption for the first time using Intracavity Laser Spectroscopy (ILS). The GeH molecules were produced in a 0.40-0.

High resolution electronic spectroscopy of the A (2)Σ- - X (2)Π1/2 transition of PtN.

The (2,0) vibrational band of the A (2)Σ(-) - X (2)Π1/2 transition of platinum nitride, PtN, was recorded at Doppler-limited resolution using intracavity laser absorption spectroscopy (ILS) and at sub-Doppler resolution using molecular beam laser induced fluorescence (LIF) spectroscopy. Isotopologue structure for (194)PtN, (195)PtN, and (196)PtN, magnetic hyperfine splitting due to (195)Pt (I = ½), and nuclear quadrupole splitting due to (14)N (I = 1) were observed in the spectrum. Molecular constants for the ground and excited states are derived.

The Pt2 (1,0) band of System VI in the near infrared by intracavity laser absorption spectroscopy.

Intracavity laser absorption spectroscopy has been used to record rotationally resolved electronic spectra of Pt(2) in the near infrared. The metal dimers were created using a 50 mm-long, platinum-lined hollow cathode plasma discharge. The observed transition at 12 937 cm(-1) is identified as the (1,0) band of System VI, with state symmetries Ω = 0 - X Ω = 0.

Video-assisted ductal ligation in premature infants.

Background: Video-assisted thoracic surgery has been shown to be a safe and effective method of closing the patent ductus arteriosus in infants and children. We have applied this technique in low birth weight premature infants and now report our experience.

Methods: Since 1996, we have used video-assisted thoracic surgery ligation as the treatment of choice for all patent ductus arteriosus, including 100 performed on premature infants (23 to 31 weeks' gestation, mean 25.

The pharmacokinetics of epsilon-aminocaproic acid in children undergoing surgical repair of congenital heart defects.

Unlabelled: epsilon-Aminocaproic acid (epsilonACA) is often administered to children undergoing cardiac surgery by using empiric dosing techniques. We hypothesized that children would have different pharmacokinetic variables and require a dosing scheme different from adults to maintain stable and effective serum epsilonACA concentrations. Eight patients were enrolled in our study.

Molecular Constants for the v=0, b(1)Sigma(g)(+) Excited State of O(2): Improved Values Derived from Measurements of the Oxygen A-Band Using Intracavity Laser Spectroscopy.

High-resolution intracavity laser spectroscopy (ILS) absorption measurements have been made on the b-X oxygen electronic transition (the A-band) which has bandheads occurring in the region of 13 165 cm(-1). The positions of the lines were determined to an accuracy that is based on calibration with I(2) absorption lines using the Laboratoire Aimé Cotton (Orsay) Atlas as reference. Based on the ILS measurements and the more accurately determined positions given by L.

Pseudo-spectral methods and linear instabilities in reaction-diffusion fronts.

We explore the application of a pseudo-spectral Fourier method to a set of reaction-diffusion equations and compare it with a second-order finite difference method. The prototype cubic autocatalytic reaction-diffusion model as discussed by Gray and Scott [Chem. Eng.