a number of 3-amino-1, 2, 4-triazin-5 (2h)- ones(1) were synthesized and condensed with a-haloketones to give 2,6-disubstituted imidazo [1, 2-b] [1, 2, 4]-triazin-3 (4h)-ones (2). these compounds were reacted further with a - haloketones to yield n-alkylated products (3).

In this research, β-Ga 2 O 3 /NiO heterostructures were grown directly on CeO buffered Hastelloy flexible substrates. With pulsed laser deposition under high temperatures, as-grown and NiO thin films have a preferred out-of-plane orientation along the ⟨−201⟩ ➎111➉ directions. This is due to ideal epitaxial ability of buffer layer, which serves as perfect template for growth single-oriented by c...

We implement an endogeneous switching-regression model for labour productivity and firms’ decision to use business–to–business (B2B) e–commerce. Our approach allows B2B usage to affect any parameter of the labour productivity equation and to properly take account of strategic complementarities between the input factors and B2B usage. Empirical evidence from 1,394 German firms shows that firms u...

The last two years have seen a rapid development of the use of the Internet in doing economic transactions (E-Commerce). Now that the euphoria has subsided, it is necessary to closely examine which E-Commerce applications will remain and why. Our paper will focus on Electronic B2B Marketplaces. We first define and classify this category of e-commerce and present the value generating models depl...