Due to lack of the proper and well behavior of steel moment-resisting connections subjected to the great and major earthquakes, excessive researches have been conducted to mitigate the damages on the primary elements and connections. Therefore, elimination of residual drift and increasing the plastic rotation capacity for the connectors in the panel zone are required. The main purpose of this s...

BACKGROUND The objective of the study was to evaluate and compare how apical enlargement with K3 and K3XF nickel-titanium (NiTi) rotary instruments reduces the root thickness in the danger zone and affects canal transportation and centering ability in mandibular molar mesial canals in a manikin extracted tooth model. MATERIAL AND METHODS Seventy-two mesial root canals of first mandibular mola...

Purpose: The aim of this study was to evaluate canal transportation and centering ability ratio 2 single Ni-Ti instruments; one shape wave gold using Cone Beam Computed Tomography scanning (CBCTs). Materials Methods: Forty mesiobuccal canals human mandibular first molars with a curvature angle that ranges from 15° 35° were divided into groups based on the type instrument used prepare canal. Gro...

Gradient factor centering is a new methodology for decomposing neural networks into biased and centered subnets which are then trained in parallel. The decomposition can be applied to any pattern-dependent factor in the network’s gradient, and is designed such that the subnets are more amenable to optimization by gradient descent than the original network: biased subnets because of their simpli...