Effects of vertical compression during pediatric cardiopulmonary resuscitation using the one-handed chest compression technique.

Objective: The posture of the rescuer while performing the one-handed chest compression (OHCC) has not yet been evaluated. This study aimed to investigate the effect of vertical compression during pediatric cardiopulmonary resuscitation (CPR) using the OHCC technique.

Methods: This was a prospective randomized crossover simulation trial.

Intraneural ganglion cyst of the lumbosacral plexus mimicking L5 radiculopathy: A case report.

Background: Intraneural ganglion cysts are benign gelatinous masses that form within the epineurium of a peripheral nerve. Only few cases of intraneural ganglion cyst arising from the hip joint have been reported.

Case Summary: A previously healthy 65-year-old woman who had been experiencing left buttock pain radiating to the dorsum of the foot for 2 years visited our clinic.

Dynamic Ultrasonographic Measurement of Inferior Joint Capsule Thickness in Patients with Unilateral Frozen Shoulder.

The diagnostic value of ultrasonography (US) for frozen shoulder (FS) is not well established. This study aimed to assess the diagnostic value of US measurement of inferior joint capsule (IJC) thickness and evaluate changes in the thickness of the IJC by US depending on arm position. A total of 71 patients with clinically diagnosed unilateral FS who underwent bilateral US measurement of the IJC were enrolled in this study.

Effects of Grain Size on the Electrical Characteristics of Three-Dimensional NAND Flash Memory Devices.

Polysilicon is commonly used as the channel in three-dimensional (3D) NAND flash memory devices. However, degradation of device performance due to grain boundary traps in the channel is a major issue. The saturation on-current level, threshold voltage (), and electron density of 3D NAND flash memory devices with randomly generated grain boundaries were investigated by using three-dimensional technology computer-aided design (TCAD) simulation.

Phenotypes of Severe Cutaneous Adverse Reactions Caused by Nonsteroidal Anti-inflammatory Drugs.

Purpose: Nonsteroidal anti-inflammatory drugs (NSAIDs) are common cause of severe cutaneous adverse reactions (SCARs). The present study aimed to investigate the characteristics of SCARs induced by NSAIDs in the Korean SCAR registry.

Methods: A retrospective survey of NSAID-induced SCARs recorded between 2010 and 2015 at 27 university hospitals in Korea was conducted.

Effects of the Grain Boundary and Interface Traps on the Electrical Characteristics of 3D NAND Flash Memory Devices.

Three-dimensional (3D) NAND flash memory devices having a poly-silicon channel with grain boundaries, the cylindrical macaroni channel being outside the inter-oxide filler layer and inside the tunneling oxide layer, were evaluated. The effects of the grain size, grain boundary trap density, and interface trap density at the interfaces between the channel and the oxide layers on the electrical characteristics of 3D NAND flash memory devices were investigated. The electron density of the channel was changed depending on the grain boundary trap density and the position of the grain boundary trap in the channel.

The effect of humeral tunnel locations on radiographic tunnel changes in baseball players following medial ulnar collateral ligament reconstruction: comparison of anatomic and nonanatomic locations.

Background: There has been no study on radiologic changes after medial ulnar collateral ligament (MUCL) reconstruction and related clinical features.

Methods: Data from 39 baseball players who underwent MUCL reconstruction were collected and analyzed. The baseball players were classified into 2 groups according to the starting point of the humeral tunnel: (1) the lower tip of the medial epicondyle (group NA, n = 21) and (2) the remnant of the MUCL (group A, n = 18).

Efficiency Enhancement in Polymer Light-Emitting Devices Fabricated Utilizing a MoO3 Hole Injection Layer Coated with Different Solvents.

Polymer light-emitting devices (PLEDs) with a MoO3 hole injection layer (HIL) were fabricated to enhance their luminance efficiency. Ultraviolet photoelectron spectroscopy spectra showed that the valence band maximum level of the MoO3 layer was located between the work function of the the indium-tin-oxide anode and the highest occupied molecular orbital level of the poly[N,N'-bis(4-butylphenyl)-N,N'-bis(phenyl)benzidine] hole transport layer. The surface of the MoO3 layer formed by using an ethanol solvent was smoother than that of the MoO layer formed by using a deionized water solvent due to a decrease in the aggregation of the MoO3 resolved in ethanol.

Transparent Conducting Silver-Nanowire-Embedded Poly(methyl methacrylate) Nanocomposite Films Formed by Using a Transfer Method.

Poly(methyl methacrylate) (PMMA) substrates containing silver nanowires (Ag NWs) were fabricated by using a transfer method. Ag NWs with a length of 20 μm and a width of 80 nm were synthesized by using a modified polyol process. Ag NW electrodes with a high surface roughness value on glass substrates were significantly improved by using both a transfer method and a poly(3,4-ethylenedioxythiophene):polystyrene sulfonate layer coating.

Clinical and radiological outcomes of type 2 superior labral anterior posterior repairs in elite overhead athletes.

Background: Although there are multiple reports on surgical outcomes of type 2 superior labral anterior posterior (SLAP) repairs, a literature review noted a paucity of data on clinical and radiological outcomes in elite overhead athletes.

Purpose: To determine midterm clinical outcomes of type 2 SLAP repairs in elite overhead athletes and whether labral integrity provides consistent return to play.

Study Design: Case series; Level of evidence, 4.