When communism fell in 1989, the question for most Eastern European countries was not whether to go to a market economy, but how to get there. Several years later, the difficult process of privatization and restructuring continues to concern the countries of the region. The Transition in Eastern...

Titanium dioxide, TiO2, is one of the photocatalysts that has a very unique characteristic. The surface coated with TiO2 exhibits extremely high affinity for water by exposing the surface to UV light and the contact angle decreases nearly to zero. On the contrary, the contact angle increases...