Neural mechanism underlying self-controlled feedback on motor skill learning.

The present study investigated the neural mechanisms of self-controlled (SC) feedback underlying its learning advantages. Forty-two participants, including 24 females (16.43 ± 2.

Optimization of tungsten dual poly-metal gates in memory devices with Ti/Wn/WSiN barrier metal.

Due to the demand of high-speed/high-density and low power application of memory devices, tungsten dual poly gate (W-DPG; W/barrier metals/n+ and p+ poly-Si) electrode could be a good solution in order to reduce gate sheet resistance (Rs). Process optimization is completed for a diffusion barrier metal in a W-DPG. A new noble WSiN layer is inserted between the Ti/WN barrier metal and the tungsten gate electrode to maintain large grain size of W deposited by physical vapor deposition.

Evaluation of workers exposed to ethylene glycol monomethyl ether and ethylene glycol monomethyl ether acetate.

Objectives: Ethylene glycol monomethyl ether (EGME) and ethylene glycol monomethyl ether acetate (EGMEA) are widely used in industries as solvents for coatings, paint and ink, but exposure data are limited because they are minor components out of mixed solvents, as well as because of inconsistency in desorption solvent use. The objective of this study was to investigate the worker exposure profile of EGME and EGMEA.

Methods: Our study investigated 27 workplaces from June to September 2008 and detected EGME and EGMEA in 20 and 13, respectively.

Osteonecrosis of femoral head treated with alendronate in a 14-year-old boy: a case report.

We describe a 14-year-old adolescent with osteonecrosis of femoral head, who was treated successfully with oral bisphosphonate. To prevent physeal damage by surgical treatment, alendronate was administered weekly for 20 months. A complete resolution was achieved.

Hemicallotasis for correction of varus deformity of the proximal tibia using a unilateral external fixator.

Background: Gradual correction of varus deformity of the proximal tibia is generally accepted and produces good results. However, most studies have used circular external fixators, which are complex and cause patient discomfort. This study was undertaken to determine the efficacy of hemicallotasis with a unilateral external fixator for correction of varus deformity of the proximal tibia.

A biomechanical analysis of locking plate fixation with minimally invasive plate osteosynthesis in a subtrochanteric fracture model.

Objective: The objective of this study was to establish the relative fixation strengths of a locking plate, a dynamic condylar screw (DCS) plate, and a long proximal femoral nail (PFN).

Methods: The study involved three groups of composite large femoral synthetic bones of five specimens per group; plating using a locking compression plate-distal femur (LCP-DF), plating using a DCS plate, and nailing using a long PFN. A gap osteotomy model was used to simulate a comminuted subtrochanteric femur fracture.