treacher collin’s syndrome (tcs) is a rare inherited condition characterized by bilateral and symmetric abnormalities of structures within the first and second bronchial arches. patients with tcs present a serious problem to anesthetists maintaining their airway as upper airway obstruction and difficult tracheal intubation due to severe facial deformity. because of retrognathia, airway manageme...

Introduction: Central obesity with high abdominal visceral fat is known to be an indicator of metabolic syndrome [1]. A multi-echo acquisition with 2-point Dixon reconstruction with decomposition of aqua/lipid (MEDAL) simultaneously provides a set of four images per slices – in-phase, outphase, fat-only and water-only images [2]. A threshold based on MEDAL acquisition parameters applied to fat-...

This paper proposes a multitoning method based on threshold modulation using a Modified Jointly Blue Noise Mask (MJBNM) to reduce banding artifacts. Since banding artifacts appear as uniform dot distributions around the intermediate output levels, such halftone patterns result in discontinuity and a visually unpleasing output in smooth transition regions. Therefore, to reduce these banding arti...

In this paper we introduced new wavelet based algorithm for speckle reduction of synthetic aperture radar images, which uses combination of undecimated wavelet transformation, wiener filter (which is an adaptive filter) and mean filter. Further more instead of using existing thresholding techniques such as sure shrinkage, Bayesian shrinkage, universal thresholding, normal thresholding, visu thr...

In this paper we introduced new wavelet based algorithm for speckle reduction of synthetic aperture radar images, which uses combination of undecimated wavelet transformation, wiener filter (which is an adaptive filter) and mean filter. Further more instead of using existing thresholding techniques such as sure shrinkage, Bayesian shrinkage, universal thresholding, normal thresholding, visu thr...

Background and Objective: Health Information Technology helps individuals prevent COVID-19. Many information technology applications have been developed to prevent Coronavirus infection globally; however, the quality level of these applications is uncertain. This study aims to evaluate the usability of the Mask mobile application, which is designed to fight COVID-19. Materials and Methods: The...

In this paper, the maintenance optimization problem of multi-component system is considered. It assumed that exact cause failure might be masked. That is, unknown, and we only know it belongs to a set called mask set. Both opportunistic perfect preventive (OPPM) corrective are Threshold OPPM inter-inspection interval considered as decision parameters which optimized using long-run cost rate cri...

Reverse subdivision aims at constructing a coarser representation of an object given by a fine polygon mesh. In this paper, we first derive a mask for reverse Loop subdivision that can be applied to both regular and extraordinary vertices. The mask is parameterized, and thus can also be used in reversing variants of Loop subdivision, such as those proposed by Warren and Litke. We apply this mas...

Background: The accuracy and the reproducibility of radiotherapy can be provided by using immobilization devices such as thermoplastic masks. In head and neck cancer radiotherapy, the patients are mostly immobilized by using thermoplastic masks. In this study, the effect of the thermoplastic mask to the surface and buildup region doses was investigated by using Markus parallel plate ion chamber...

Background: COVID-19 pandemic mitigation requires evidence-based strategies. Because can spread via respired droplets, most US states mandated mask use in public settings. Randomized control trials have not clearly demonstrated efficacy against respiratory viruses, and observational studies conflict on whether predicts lower infection rates. We hypothesized that statewide mandates were associat...