Introduction dMRI tractography needs to be constrained by a white matter (WM) mask defining the 3D space within which fibers are tracked. Most techniques usually threshold the fractional anisotropy (FA) maps (typical threshold between 0.1-0.2) assuming that when FA is too small, the uncertainty of the principal diffusion direction is high. However, this criterion is rough as the FA value is not...

Natural composites are one of the smart materials that have opportunity to replace use synthetic composites. and metal materials. Layered structural provide nearly uniform properties on all sides. The purpose this study was determine mechanical tensile, compressive impact behavior bamboo fiber polymer with a layered structure. This research method is experimental where specimens made in 2 quasi...

INTRODUCTION The aim of this study was to detect the effect of 1 μg/kg of oral dexmedetomidine (DEX) as premedication among children undergoing dental procedures. MATERIALS AND METHODS The study involved 100 children between 2 and 6 years of age, ASA I, who underwent full-mouth dental rehabilitation. The DEX group (n = 50) received 1 μg/kg DEX in apple juice, and the control group (n = 50) re...

Modulation frequency and orientation tuning of second-order mechanisms underlying the detection of modulation in local spatial-frequency information are assessed by using an oblique-masking paradigm. Stimuli were Gabor-filtered noise patterns in which the local carrier spatial frequency was modulated about an average value of 4.7 cycles per degree (cpd) according to sinusoidal function. Thresho...

This paper presents a novel fiber spraying process for the manufacturing of short bundle-reinforced Nextel™ 610/Al2O3-ZrO2 oxide composites (SF-OFC) and its characterization. First, influence varying lengths (7, 14, 28 mm, continuous fibers) orientations (unidirectional 0°, quasi-isotropic, ±45°) was investigated using hand-laid SF-OFC. Due to weak matrix, material exhibited strongly fiber-domi...

laryngeal mask is a supraglothic instrument for ventilation of patients who are under anesthesia. insertion of laryngeal mask requires maintaining sufficient depth of anesthesia to avoid airway reflex (gagging, coughing and spasms). the present study investigated two techniques of anesthesia with propofol-atracurium and thiopental-atracurium to facilitate insertion of the laryngeal mask, term o...

We present a new method for the in-plane realignment of nematic liquid crystals in already fully assembled cells with uni-directionally rubbed polyimide as an aligning layer. We use nematic liquid crystals (NLCs) with a relatively high nematic-isotropic transition temperature and we focus the IR laser beam of the laser tweezers selectively onto one or the other of the inner interfaces. The heat...