This manuscript reports on the physical properties and optical band gap of five samples of soda lime silicate (SLS) glass combined with zinc oxide (ZnO) that were prepared by a melting and quenching process. To understand the role of ZnO in this glass structure, the density, molar volume and optical band gaps were investigated. The density and absorption spectra in the Ultra-Violet-Visible (UV-...

A theoretical study of structural, electronic, elastic and optical properties of zinc-blende BeS under hydrostatic pressure is presented using ab-initio plane wave pseudopotential density functional theory method within the local density approximation (LDA) and generalized gradient approximation (GGA) .The dependencies of the elastic constants, the bulk modulus, young modulus and energy gaps on...

A three-laboratory study was performed to evaluate conidium counting in a hematocytometer as a technique of inoculum preparation for susceptibility testing of Aspergillus spp. In addition, inocula were quantified by colony counting and optical density determination. The agreement and correlation coefficient between conidium and colony quantifications were 89.2% and 0.73 (P < 0.01). Correlations...

Molecular optical susceptibilities are calculated by deriving equations of motion for the single electron reduced density matrix, and solving them using the time dependent Hartree-Fock (TDHF) approximation. The present approach focuses directly on the dynamics of the charges in real space and completely avoids the tedious summations over molecular eigenstates. It further maps the system onto a ...

Background and Aim: Considering the effect of alcohol on bones, consuming alcohol may have some consequences on orthodontic tooth movement. The present study was aimed to evaluate the effect of alcohol consumption on bone density and orthodontic tooth movement in rats. Materials and Methods: In this experimental study, thirty rats were divided into three groups and underwent 3 weeks of diffe...

The response of radiochromic film, GafChromic EBT, was investigated for dependence on x-ray beam energy using a previously reported real-time optical readout approach. X-ray beams of energy from 75 kVp to 18 MV were employed. The dose-induced change in optical density for the EBT film was compared to values obtained for GafChromic HS and MD-55 films, exposed under the same conditions. All respo...

PURPOSE This study was designed to investigate the optical density of macular pigment in Type 1 and Type 2 diabetes subjects relative to normal controls. METHODS One hundred and fifty subjects were recruited to the study and divided into one of the three study groups on the basis of their health status, as follows: Group 1: Healthy controls; Group 2: Type 1 diabetes; Group 3: Type 2 diabetes....

Guidry, D. J. (Louisiana State University, New Orleans) and G. H. Trelles. Evaluation of a new method for the preparation of homogeneous mycelial suspensions. J. Bacteriol. 83:53-60. 1962.-An all-glass tissue homogenizer (providing both conical and cylindrical grinding surfaces) was employed in the preparation of homogeneous mycelial suspensions. Pellets of mycelium from constant shake liquid c...

Photochromic compounds are promising materials for optoelectronic and photonic applications because of their ability to undergo change in color under UV/Vis illumination due to reversible chemical transition from open to closed ring isomers (photocyclization). The by-produc formation may lead to irreversible photodegradation of the material, called fatigue. We use Density Functional Theory meth...

We consider the task of visual recognition of objects and their parts in a dynamic environment, where the appearances, as well as the relative positions between parts, change over time. We start with a model of an object class learned from a limited set of view directions (such as side views of cars or airplanes). The algorithm is then given a video input which contains the object moving and ch...