In this review we summarise the quantum chemistry studies carried out by several groups over the last ten years on polyoxometalates, or polyoxoanions. This is an immense family of compounds made up of transition metal ions in their highest oxidation state and oxo ligands. The continuous progress of computers in general, and quantum chemistry software in particular, has enabled a number of topic...

Fatemeh Karimi Tabar was born in Asadabad/Hamedan (Iran) in 1986. She completed her B.Sc. in chemistry in 2008 from Bu-Ali Sina University, Hamedan, Iran. She was graduated from M.Sc. degree in organic chemistry from Shiraz University 2010, Shiraz, Iran. She is currently Organic Chemistry Ph.D student under the supervision of prof. M.A. Zolfigol and prof. A. Khazaei in department of chemistry a...

Computational grid computing has emerged as one of the most promising research areas in high performance and distributed computing. The ability to allocate large numbers of resources for a parallel application with a greatly reduced cost makes the concept grid computing highly appealing. The heterogeneous nature of a grid creates a complex application environment; the nature of faults within th...

Non-Markovian reduced dynamics of an open system is investigated. In the case the initial state of the reservoir is the vacuum state, an approximation is introduced which makes possible to construct a reduced dynamics which is completely positive.

California is a leader among states in its efforts to cut greenhouse gas emissions. Under the California Global Warming Solutions Act of 2006 (Assembly Bill 32), the state has set itself on a course to reduce its greenhouse gas emissions to 1990 levels by the year 2020. In addition to its cap-and-trade program, California aims to accomplish this objective via a large assortment of complementary...

Toktam Faal Rastegar was born in Quchan (Iran). She completed her B.Sc. in Chemistry in 2005 from Ferdowsi University, Mashhad. She was graduated from M.Sc. degree in Organic Chemistry from Bu-Ali Sina University (2008), Hamadan, Iran. She is currently Organic Chemistry Ph.D student under the supervision of Prof. A. Khazaei and Prof. M.A. Zolfigol in Department of Chemistry at Bu-Ali Sina Unive...

Toktam Faal Rastegar was born in Quchan (Iran). She completed her B.Sc. in Chemistry in 2005 from Ferdowsi University, Mashhad. She was graduated from M.Sc. degree in Organic Chemistry from Bu-Ali Sina University (2008), Hamadan, Iran. She is currently Organic Chemistry Ph.D student under the supervision of Prof. A. Khazaei and Prof. M.A. Zolfigol in Department of Chemistry at Bu-Ali Sina Unive...

A new method to deal with reduced dynamics of open systems by means of the Schrödinger equation is presented. It allows one to consider the reduced time evolution for correlated and uncorrelated initial conditions.

Software services offer many opportunities like reduced cost for IT infrastructure. They also introduce new risks, for example the clients lose control over their data. While data can be secured against external threats using standard techniques, the service providers themselves have to be trusted to ensure privacy. In this paper, we examine methods that can increase the level of privacy a serv...