background and aims. espar is a dairy product of probiotic nature that contains useful bacteria and high calcium con-tent. the aim of this study was to analyze effects of daily consumption of espar on the number of salivary mutans strepto-cocci and the level of calcium content in a population of 15 to 17 year-old female students. materials and methods. a double-blind randomized crossover study ...

A lot of computer vision applications benefit from robust skin color classification. But this is a hard challenge due to the various image conditions like camera settings, illumination, light source, shadows and many more. Furthermore people’s tans and ethnic groups also extend those conditions. In this work we present a parametric skin color classifier that can be adapted to the conditions of ...

The Unit csity of VMiclhigan ,School of Dentistry, Anne Arbor, Michigan 48109 J Dent Res 58(6):1566-1569, June 1979 Synithetic bytdroxyapatite is often used for simulationi studies of adsorption of Streptoc occus min tans andic other oral bacteria. F ffects of chIemical treatniienitS of l ydro xvapatites on the adsorption of S. mutanis iasve been reported (O'Brien ct al., J Dent Rse Sept 1978; ...

Die Voorkomende Gemeenskapsgeriatriesedienste wat vir die afgeiope tien jaar in die Stad Germiston gelewer word, word kortliks uiteengesit. Hierdie dienste is beskikbaar aan alle inwoners van die Stad wie ouer as 60 jaar is en bestaan, onder andere, uit siftingskliniekdienste en voetkundige dienste. Daar word ook tuisbesoeke gedoen om kontak te hou met bejaarde kliente sowel as om met hul probl...

The effect of wavelength on the photochemical reaction of ergocalciferol (vitamin D2) was investigated. An ergocalciferol solution in ethanol was irradiated by monochromatic UV light of various wave lengths with a fixed quantum (8.0•~108erg/cm2), trimethylsilylated and then applied to a capillary column GLC as described previously (10) in order to estimate the reaction products. The results sho...

The instability of hydrothermal liquefaction (HTL) biocrude has impeded the broader utilization fuel and chemical feedstock. In this paper, we investigated storage stability produced from HTL microalgae. showed good in phase homogeneity water content, whereas viscosity average molecular weight increased by 48.4 41.9%, respectively, after storing for 12 months. Thermogravimetric analysis (TGA) a...

A theoretical analysis of carbon nanotube based field-effect transistors fabricated by two different groups @Tans et al., Nature ~London! 393, 49 ~1998!; Martel et al., Appl. Phys. Lett. 73, 2447 ~1998!# is presented. The metal ~electrode!-semiconductor ~nanotube! contact influences subthreshold channel conductance versus gate voltage VG , such that the occurrence of a kink depends on the trans...

Eye tracking is a well-established tool utilised in research areas such as neuroscience, psychology and marketing. There are currently many different types of eye trackers available, the most common being video-based remote eye trackers. Many of the currently available remote eye trackers are either expensive, or provide a relatively low sampling frequency. The goal of this dissertation is to p...