background: the purpose of this study was to evaluate the effect of washing water temperature on the micro‑shear bond strength (μsbs) of composite resin to dentin using a two‑step etch‑and‑rinse system and a two‑step self‑etching system. materials and methods: in this in vitro study , the intact dentins of buccal and lingual surfaces of healthy third molars were exposed. dentin surfaces were ri...

The threshold-ion-pair-production (TIPP) spectra of H2S and D2S have been recorded in the vicinity H++SH?[X1?+(v?=0,1;J?)] D++SD?[X1?+(v?=0,1;J?)] thresholds using a tunable vacuum-ultraviolet laser cold molecular samples (Trot?20K) supersonic expansions. ion-pair-production signal was found to be much stronger at v?=0 than v?=1 thresholds. From rotational structure spectra, dominant photodisso...

This News Report is a brief description of the 2010 Lifetime Achievement Award received by William (Bill) L. Ogren from the Rebeiz Foundation for Basic Research, at Champaign, Illinois, on Sep 10, 2011. It focuses mainly on the presentations by two of us (ARP and Gov), Christoph Benning (on behalf of Chris Somerville), David Krogmann and Jack Widholm, at this ceremony. It is enriched by the tes...

The 400-4000 cm(-1) FTIR spectra of pure NH and isotopically substituted (10 and 90% doped ND/NH) polycrystalline L-alanine were recorded in the temperature range 10-300 K. The observed temperature dependence and isotopic shifts behavior enabled to identify, in the spectra of the doped crystals, three well-separated bands ascribable to either the NH or ND stretching vibrations associated with t...

Ian D. Howarth, R. H. D. Townsend, M. J. Clayton, A. W. Fullerton, D. R. Gies, D. Massa, R.K. Prinja and A. H. N. Reid 1 Department of Physics & Astronomy, University College London, Gower Street, London WC1E 6BT 2 Center for Astrophysical Sciences, Department of Physics & Astronomy, The Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA 3 Center for High Angular Resolution...

Splittings related to the stretching vibration of bound dioxygen in hemoproteins have been detected by resonance Raman spectroscopy. With excitation at 406.7 nm we observe three isotope-sensitive lines in oxycobaltmyoglobin (oxyCoMb) [or in oxycobalthemoglobin A (oxyCoHbA)] at 1103 (1107), 1137 (1137), and 1153 (1152) cm-1, of which the most intense one appears at 1137 cm-1. The first two frequ...