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Displaying 676 - 700 of 1898

Crystal Structure of the Class IV Adenylyl Cyclase From Yersinia Pestis

March 1, 2006
Author(s)
N Smith, Sung Kim, Prasad T. Reddy, David T. Gallagher
… is distinct from the previously described folds for class II and class III ACs. The dimeric Yp AC-IV folds into an … sites for substrate and divalent cations. Unlike AC-II and AC-III active sites that utilize a DxD motif for …

On/Off Flurescence Intermittency of Single Semiconductor Quantum Dots

July 1, 2001
Author(s)
M Kuno, D P. Fromm, H F. Hamann, Alan Gallagher, David Nesbitt
… kinetics of fluorescence intermittency in colloidal II-VI (CdSe) semiconductor quantum dots. Two distinct modes … rapid laser absorption/fluorescence cycling, followed by (ii) sustained off episodes (τ off ) where essentially no …

Update of Atomic Data for the First Three Spectra of Actinium

April 22, 2022
Author(s)
Alexander Kramida
… ones have been found, and three have been revised. In Ac II, 16 new energy levels have been established, and 36 new … observed but unclassified lines. In both Ac I and Ac II, new sets of transition probabilities have been …

Single Molecule Fluorescence Resonance Energy Transfer of a RNA Kissing Complex

January 27, 2005
Author(s)
Peter Yim, Xiaoyi Y. Zhang, E S. DeJong, J M. Carroll, John P. Marino, Lori S. Goldner
… Coli (ColE1) plasmid-encoded transcripts, RNA I and RNA II, is a critical intermediate in multi-step hybridization … RNA hairpins (R1inv and R2inv) derived from RNA I and RNA II were used in our study. To obtain quantitative …

Synthesis and Characterization of Colloidal Beta-HgS Quantum Dots

October 1, 2002
Author(s)
K A. Higginson, M Kuno, John E. Bonevich, S B. Qadri, M Yousuf, H Mattoussi
… strategy combining the effects of strongly binding Hg(II) ligands with a two-phase metal/chalcogen precursor … of bulk HgS in preparations using only weakly binding Hg(II) ligands and the reduction of mercury which occurs when …
Displaying 676 - 700 of 1898
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