during fixation of a femoral neck fracture in a 23-year-old male patient with cannulated screws, a broken guide wire fragment inadvertently advanced through the hip joint and protruded into the pelvis. a second surgical approach was needed to remove the broken fragment from the pelvis. awareness of such a potentially devastating complication will make surgeons more cautious during implementatio...

We review some approaches to macroscopic irreversibility from reversible microscopic dynamics, introducing the contribution of time dependent perturbations within the framework of recent developments in non-equilibrium statistical physics. We show that situations commonly assumed to violate the time reversal symmetry (presence of magnetic fields, rotating reference frames, and some time depende...

tooth discoloration induced by endodontic sealers, is a common finding that impairs aesthetic outcome of endodontic treatment. the aim of the present mini literature review, was to summarize the existing data on discoloration potential of different endodontic sealers. the research covered the article published in pubmed and google scholar from 2000 to 2015. the searched keywords included ‘tooth...

The gearbox is one of the critical components a wind turbine. Proactive maintenance turbine gearboxes crucial to decrease and operational costs long downtime complete system. As significant part turbine, fault in leads breakdown Hence, it important study analyze faults systems. In this article, neural network-based model, Bidirectional Long Short-Term Memory (BLSTM) fused with an autoencoder in...

Aiming at the poor efficiency in crushing a handful of caking organic fertilizers spraying from traditional disc spreader, an improved spreader equipped with spike-tooth unit was designed introduction its structural composition and working principle. Also simulation experiments were carried out based on discrete element method according to solutions made before after improvement. Firstly, granu...