Oxygen desaturation during sleep in patients with cystic fibrosis has been attributed to changes in the end-expiratory volume during rapid eye movement (REM) sleep, leading to worsening of the ventilation-perfusion distribution. The purpose of this study was to describe the changes in ventilation during sleep that may contribute to the oxygen desaturation. Six adolescent males with moderate to ...

Molecular dynamics simulations were conducted to evaluate the effect of water desaturation on ion and density distributions diffusion properties in a clay mineral mesopore. Simulations carried out using polarizable model (PIM) force field. Desaturation pore was responsible for significant changes localization mobility molecules ions, especially most unsaturated conditions, which charge overcomp...

OBJECTIVE Infants who sleep prone and face down on soft bedding are particularly vulnerable for sudden infant death syndrome. It has been suggested that 1 mechanism of death in this situation involves rebreathing of expired air. Many infants tolerate rebreathing while lying prone face down for long periods with stable saturations. Others occasionally have rapid desaturations and may require int...

In the application of vehicle power supply and distributed power generation, there are strict requirements for the pulse width modulation (PWM) converter regarding power density and reliability. When compared with the conventional insulated gate bipolar transistor (IGBT) module, the Reverse Conducting-Insulated Gate Bipolar Transistor (RC-IGBT) with the same package has a lower thermal resistan...

Desaturation of [1-r4C]stearic acid, [lJ4C]palmitic acid, and [l-14C]stearoyl-CoA was measured in homogenates of lo-day-old rat brain. Desaturation was maximal with stearoyl-CoA at pH 6.0 to 6.6. With free fatty acids, monoene formation was maximal at pH 7.2 to 7.6; stearic acid was more actively desaturated than palmitic acid. Activity with stearic acid or stearoyl-CoA was linear with protein ...

Background: With the goal of optimizing tissue perfusion and maintaining adequate oxygen delivery, nurses play an important role in monitoring oxygenation and ventilation. Nursing practices may affect oxygen saturation in critically ill patients. Aim of study was to determine the relationship between nursing practices and oxygen desaturation in critically ill patients. Design: A descriptive res...

INTRODUCTION The clinical importance of postoperative episodic hypoxemia is still unclear, and therefore largely under-studied. As a result, there is limited understanding of its relationship with early postoperative respiratory complications (PRC, defined as intubation within three days of surgery) and hospital resource utilization. MATERIALS AND METHODS This single center study was performe...

The increasing worldwide aquaculture output and concomitant decrease in the stocks of feedgrade fish used for fish oil production has made fish oil replacement in feeds a priority for the aquaculture industry. The regulation of fatty acid metabolism in fish is important in order to determine strategies for the best use of plant oils in diets for commercially important cultured fish species. We ...

OBJECTIVES In a video-based study of rapid sequence intubation (RSI) in a pediatric emergency department (PED), 33% of children experienced oxyhemoglobin desaturation (SpO2 < 90%). To inform targeted improvement interventions, we planned multivariable analyses to identify patient and process variables (including time-based data around performance of key RSI process elements uniquely available f...

OBJECTIVE To evaluate the effect of stochastic resonance (SR) stimulation on preterm infant oxygen desaturation, bradycardia, and apnea events. We hypothesized that SR stimulation will reduce these events. METHODS This was a randomized crossover study conducted from April 2012 to July 2014. Eligible preterm infants were not receiving ventilation support and had at least 1 clinically documente...