Study of optical properties of zinc oxide/silver/zinc oxide thin layers

In this work, multi-layer thin films (insulator - metal - insulator) were prepared on glass substrates. Where we deposited the following order of (zinc oxide - silver - zinc oxide) by magnetron sputtering of zinc oxide and vacuum thermal evaporation technique for silver.

Effect of metal type and surface treatment on shear bond strength of resin cement (in vitro study)

Background Resin bonded fixed partial dentures appeared to prevent the excessive preparation of dental tissue Investigation of surface treatments to improve the bond of resin cements to metals may contribute to the longevity of these restorations. Due to the potential lack of ideal preparation form the type of alloy and its surface pretreatment may have clinically relevant correlations with the retentive strength of castings to minimally retentive preparations Aim The aim of this search is to study the bonding resin cement strength to different types of the metal alloy due to the surface treatment Purpose Evaluate the effects of two different surface treatments on shear bond strength SBS between a palladium silver alloy Pb Ag and commercially pure titanium CP Ti cast alloy with resin luting cements

Factors affecting leaf protoplast isolation from Binella -potato cultivar

In this research, protoplast isolations were obtained from the leaves of Potato Binella cultivar at the laboratories of Agriculture College- Damascus University in order to determine factors affecting the yield and viability of protoplast isolation. Results indicated that the best yield percentage of isolated protoplast.