In a series of recent experiments, the HOMO-LUMO energy gaps of small Si clusters deposited on a graphite substrate have been determined by Scanning Tunneling Microscopy (STM). The values obtained were found to be substantially smaller than the energy gaps of corresponding passivated clusters. This work considers dimensional reduction as a possible mechanism for a sizeable energy gap narrowing ...

Defects in protein O-mannosylation lead to severe congenital muscular dystrophies collectively known as ?-dystroglycanopathy. A hallmark of these diseases is the loss O-mannose-bound matriglycan on ?-dystroglycan, which reduces cell adhesion extracellular matrix. Mutations O-mannose ?1,2-N-acetylglucosaminyltransferase 1 (POMGNT1), crucial for elongation O-mannosyl glycans, have mainly been ass...

The aryl hydrocarbon receptor (AhR) is a ligand-dependent, basic helix-loop-helix Per-ARNTSim (PAS) containing transcription factor that can bind and be activated by structurally diverse chemicals, including the toxic environmental contaminant 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). As no experimentally determined structures of the AhR ligand binding domain (LBD) are available and previous ...

Accurate solvation parameters have been established using solely gas/liquid partition data by gas/chromatography from the Kováts group (Laffort et al. J. Chromatog. A, 2005, 1100, 90-107). Because these chromatographic data have been recently updated (Kováts and Kresz, J. Chromatog. A, 2006, 1113, 206-219), the solvation parameters of the involved solutes and stationary phases have been entirel...

In web information retrieval, the interpretation of text is crucial. In this paper, we describe an approach to ease the interpretation of compound word (i.e. words that consist of other words such as “handshake” or “blackboard”). We argue that in the web information retrieval domain, a fast decomposition of those words is necessary and a way to split as many words as possible, while we believe ...

In web information retrieval, the interpretation of text is crucial. In this paper, we describe an approach to ease the interpretation of compound word (i.e. words that consist of other words such as “handshake” or “blackboard”). We argue that in the web information retrieval domain, a fast decomposition of those words is necessary and a way to split as many words as possible, while we believe ...

Topological defects or phase boundaries discerned in a number of one-dimensional cellular automata appear to perform random walks as well as simpler motions. We analyze their properties rigorously using probabilistic methods. This results in a complete classi cation in the partially permutive case. The paper complements [1] where the general framework of tilings and subpermutivity was introduce...