Chemical analysis of a lunar meteorite by laser ablation mass spectrometry

Stars and planetary system

Distributive justice and information communication technologies in higher education in South Africa

The international communications network is both a feature of globalization and a condition of possibility for the process of globalization. Universities are willy-nilly part of the process. This poses a range of dilemmas for universities in Africa. In this article we focus on some dilemmas of distributive justice as indicated in the question: Should South African universities introduce or develop on-line learning for flexible mode delivery under circumstances in which some students do not have access to Information Communication Technologies (ICTs)? Walzer's account of distributive justice provides an illuminating set of concepts for understanding the issues embedded in this dilemma. The concepts of simple and complex equality, and the related concepts of dominance and monopoly, social goods and the criteria for their distribution are especially pertinent. They are deployed to develop some tentative recommendations on how South African universities should approach dilemmas of distributive justice in the use of ICTs

From Structure to Function: Characterization of Cu(I) Adducts in Leveler Additives by DFT Calculations

We present the first molecular model of the coordination complex formed by Cu(I) and imidazole-epichlorohydrin polymers. Our calculations show that the Cu(I) ion has linear coordination and the whole complex has neutral charge. Our model suggests salt couple pairing as the driving force for the formation of the surface-confined precipitation, which is crucial to obtain flat surfaces in industrial copper deposition processes, required for mass fabrication of state-of-the-art electronic and memory devices