Effect of the Titanium Isopropoxide:Acetylacetone Molar Ratio on the Photocatalytic Activity of TiO Thin Films.

TiO thin films with different titanium isopropoxide (TTIP):acetylacetone (AcacH) molar ratios in solution were prepared by the chemical spray pyrolysis method. The TTIP:AcacH molar ratio in spray solution varied from 1:3 to 1:20. TiO films were deposited onto the glass substrates at 350 °C and heat-treated at 500 °C.

Universal newborn hearing screening program in Bulgaria.

The design of a Universal Newborn Hearing Screening Program (UNHSP) depends on many factors unique to each hospital. The goal of any UNHSP is to perform a valid hearing screening on all newborn infants prior to hospital discharge. Ultimately hearing screening of all infants should decrease the age at which intervention is initiated in these who require it.