in this paper, a new method is proposed for the production of mwcnts/pvc (multi-walled carbon nanotubes/ polyvinyl chloride) nanocomposites. in this method, a spray is used to produce layers of carbon nanotubes within a pvc matrix. various parameters influence the production of the nanocomposite and its mechanical properties. these parameters are studied separately and the effect of each of par...

INTRODUCTION Orbital preseptal thickness is an important parameter not only in diagnosis of orbital cellulitis but also in recent classification and management of dark eye circle (DEC). OBJECTIVE The aim of this study was to evaluate normal preseptal thickness and collect baseline data in normal skin in a given population with no orbital pathology. MATERIALS & METHOD Ultrasound was performe...

We evaluated three methods (two indirect and one direct) for determining the magnesium (Mg) and zinc (Zn) content of erythrocytes, to compare methodologic differences and to establish a method suitable for use in field studies. For the indirect methods, erythrocytes in whole blood were lysed by adding either de-ionized water (I) or nitric acid, 2 mol/L (II). For the direct method (III), erythro...

toxicity of spinosad was primarily evaluated with three bioassay methods: feeding, spraying (residual exposure) and combination with larval medium against one susceptible and one field population. feeding method was selected as efficient method for survey of susceptibility or resistance of seven field populations. in feeding bioassay method, spinosad ld50 of susceptible strain at 24h and 72h we...

BACKGROUND Surface topography is increasingly used with postural analysis. One system, DIERS formetric 4D, measures 40 defined spine shape parameters from a 6-s scan. Through system algorithms, a set of spine shape parameter values from 1 of 12 recorded images obtained during a scan becomes the DIERS-reported value (DRV) for postural assessment. The purpose of the current study was to compare D...

Managing salmon louse Lepeophtheirus salmonis outbreaks is a crucial part of aquaculture in sea cages. Treatment management strategies can be optimized with the aid salmon-louse population dynamic models. These models, however, need to calibrated and validated biologically meaningful parameters. Here, based on time-series lice data, we estimated 2 essential model parameters: external infection ...