BACKGROUND Proximal femoral nail anti-rotation (PFNA) is a standard femoral intertrochanteric fracture operation. Iatrogenic vascular injury, although uncommon, is a reported complication of PFNA surgery as well as a complication of hip fracture surgery. This study aimed to compare the safety and best use of the distal locking screw in 170 mm PFNA and 240 mm PFNA devices, and to determine the s...

A comparison equation is set up and solved for the locking of an electronic angular momentum 1 = 1 to the molecular axis during a collision of two atoms. Two parameters which enter into the comparison equation characterize the strength and the abruptness of the locking. A solution found allows one to investigate the transition from loose locking to tight locking. A new definition of the locking...

1.0 INTRODUCTION 2. 0 MODULATOR CONFIGURATION AND CHARACTERISTICS 3. 0 LOW PRESSURE CW C02 LASER EXPERIMENTS 4. 0 MODE-LOCKING THE C02 TEA LASER 4. I Linewidth of CO TEA Lasers 4. 2 Experimental Configuration and Initial Experiments 4. 3 Measurements of the Optical Quality of the Laser Medium 4. 4 Modifications of the Discharge Configuration to Improve Medium Optical Quality 4. 5 Phase-Locking ...

Most modern computing systems are having multicore processors with multilevel caches for high performance. Caches increase total power consumption and worsen execution time unpredictability. Studies show that way (or partial) cache locking may improve timing predictability and performance-to-power ratio for both single-core and multicore systems. Even though both private first-level and shared ...

BACKGROUND Working memory (WM) deficits are a core feature of schizophrenia. Recent electrophysiological evidence indicates that the brain systems for visual encoding are especially impaired. However, patients still achieve performance levels clearly above chance, which indicates the existence of residual mechanisms supporting WM encoding. The present study presents evidence that alpha phase lo...

An enhancement of the extended B-spline-based implicit material point method (EBS-MPM) is developed to avoid pressure oscillation and volumetric locking. The EBS-MPM a stable MPM that enables imposition arbitrary boundary conditions thanks higher-order EBS basis functions help Nitsche's method. In particular, by means functions, can suppress cell-crossing errors caused points crossing backgroun...

BACKGROUND Locking plate fixation is increasingly used for first metatarsophalangeal joint (MTP-I) arthrodesis. There are still few comparable clinical data regarding this procedure. In this study we aimed to compare the clinical and radiographical outcomes of crossed-screws, locking and non-locking plate fixation with lag screw for first metatarsophalangeal joint arthrodesis. METHODS A total...

ABSTRACT
 Material types with different chemical and physical properties are employed by being joined in industrial applications. The major objective is to generate high-performance prochannels bringing outstanding of materials together. Many conventional methods, primarily welding method such as casting, adhesion, rivet weld, bolts joining procedures. Among the mechanical locking, a novel...