Abstract. In this article, we propose a model describing the transport of trapped particles in a surface potential. The potential confines particles close to the surface increasing the number of surface collisions. First, we consider the case of non charged particles. From a kinetic description, we rigorously derive a two dimensional Boltzmann equation. In the case of charged particles we intro...

PURPOSE The objective of the present study was to investigate the effect on bone tissue healing patterns in 1-mm area treated in the transmucosal surface of the abutment in the tibia of rabbits. MATERIALS AND METHODS Forty-six abutments were divided into two groups: control group (CG) with 14 abutments with smooth surface and experimental group (EG) with 32 abutments presenting a 1-mm area of...

We present a fully automated maskless exposure system for the fabrication of microscopic orientational surface alignment patterns. The maskless system allows us to fabricate arbitrary surface patterns over a 2 mm × 2 mm area with a resolution of 2.2 μm. A confocal autofocus system insures accurate and repeatable focus. Microscopic orientational surface patterns have been demonstrated to exhibit...

OBJECTIVE We compare the mitral valve annular dimension in relation to the body surface area of the Indian population as against the standard values. METHODS The study was conducted between September 2004 and February 2006 on 406 subjects, out of which 252 were males and 154 were females. A spatially oriented B-mode scan echocardiogram was used, with the long-axis plane running parallel to th...

background and aims: although dental caries is a preventable disease, it is still common and remains a public health problem. one of the potentially effective preventive measures is laser irradiation. raman spectroscopy is a powerful technique for studying the microcrystalline structure of dental enamel. the study assessed the chemical alterations occurring in enamel irradiated with er:yag or n...

Steam reforming is one of the most important processes for producing hydrogen from hydrocarbon fuels such as LPG and has attracted much attention due to its high efficiency and economy. In this study, the LPG steam reforming reaction was investigated on nickel catalysts supported on four various zeolites (H-Y, Na-Y, HZSM5 and Ferrierite). The catalytic tests were performed in a tubular fixed be...

PURPOSE To determine variations in eye volume, surface area, and shape with refractive error in young children using a three-dimensional magnetic resonance imaging (MRI) model. METHODS A subset of Singaporean Chinese boys enrolled in the population-based Strabismus, Amblyopia, and Refractive Error in Singapore (STARS) study underwent MRI using a 3-Tesla whole body scanner with a 32-channel he...

OBJECTIVE To evaluate the effect of anti-TNF-α in the treatment of endometrial implants in the peritoneum of rats. METHODS Endometrial implants were surgically induced in 120 female Wistar-Albino rats. The animals were randomly divided into four groups. Group C (n = 36) received an intraperitoneal injection of 0.2 ml of saline. Group L (n = 41) received a subcutaneous injection of 1mg/kg of l...

In this study, two naturally occurred chromone derivatives obtained from Cassia nomame which are recently entered the literature, have been investigated computationally for their potential antiviral activity against SARS-CoV-2. first part of DFT calculations were performed on compounds. part, geometry optimizations, frequency analyses, molecular electrostatic map calculations, frontier orbital ...

In this study conformation analysis of seven drugs commonly used in the treatment COVID-19 was performed. The most stable conformers drug molecules were as initial data for docking analysis. Using Cavityplus program, probable active binding sites both apo and holo forms main protease enzyme (Mpro) spike glycoprotein SARSCoV-2 receptors determined. interaction mechanisms 7 FDA approved (arbidol,...