4,195 research outputs found
Rodger Kamenetz, 33rd Annual ODU Literary Festival
No full textRodger Kamenetz is an award-winning poet and author. He wrote the international bestseller The Jew in the Lotus and the National Jewish Book Award-winning Stalking Elijah. His five books of poetry include The Lowercase Jew. Kamenetz has been called “the most formidable of the Jewish-American poets.” His latest book, The History of Last Night’s Dream, was featured on Oprah Winfrey’s Soul Series
About the Author - from Counseling and the Demonic
No full textAbout the Author from Counseling and the Demonic by Rodger K Buffor
VLF scattering from red sprites: application of numerical modelling
No full textRed sprites were discovered by chance in 1989 when a low-light TV system was pointed above an active thunderstorm. Red sprites are associated with columns of ionization in the Earth-ionosphere waveguide, from above the thunderstorm into the D region of the ionosphere. The ionized columns have been detected through “VLF sprites,” perturbations of the phase and/or amplitude of subionospheric VLF transmissions, which can be used to study the electrical properties of red sprites. There is extensive experimental evidence that VLF sprites may involve wide scattering angles and can produce back scattered radiation. Here we present a numerical and theoretical study of me scattering of subionospheric VLF transmissions caused by the plasma columns associated with red sprites. Comparison of the VLF scattering from sprites is made between a non-Born rigorous model which assumes the sprites are infinite columns of constant conductivity, and a three dimensional Born scattering code. Both formulations show excellent agreement with one another. The formulations predict VLF sprites similar to those experimentally observed for all scattering angles. This shows that the conclusions of previous studies into VLF sprites making use of the non-Born formulations of Rodger et al. [1997a, b] are valid. The modeling provides strong evidence that red sprite plasma is highly ionized in comparison with the ambient nighttime ionosphere, being nearly 5 orders of magnitude greater than the ambient at some heights
Rodger Lacy
No full textRodger Lacy, son of Mr. and Mrs. George Lacy, attended Boys State, for Uintah High School
Rice Rodger R., Beegle J. Allan — Differential fertility in a metropolitan Society.
No full textZucker Elisabeth. Rice Rodger R., Beegle J. Allan — Differential fertility in a metropolitan Society.. In: Population, 28ᵉ année, n°6, 1973. pp. 1222-1223
Report on afforestation and reforestation in Tasmania.
No full text"Forest survey of Tasmania; report by Mr. G. J. Rodger": p. [15]-110.Mode of access: Internet
Simulations of DNA coiling around a synthetic supramolecular cylinder that binds in the DNA major groove
No full textIn this work we present the results of a molecular simulation study of the interaction between a tetracationic bis iron((II)) supramolecular cylinder, [Fe-2(C25H20N4)(3)](4+), and DNA. This supramolecular cylinder has been shown to bind in the major groove of DNA and to induce dramatic coiling of the DNA. The simulations have been designed to elucidate the interactions that lead the cylinder to target the major groove and that drive the subsequent DNA conformational changes. Three sets of multi-nanosecond simulations have been performed: one of the uncomplexed d(CCCCCTTTTTCC)d(GGAAAAAGGGGG) dodecamer; one of this DNA complexed with the cylinder molecule; and one of this DNA complexed with a neutralised version of the cylinder. Coiling of the DNA was observed in the DNA-cylinder simulations, giving insight into the molecular level nature of the supramolecular coiling observed experimentally. The cylinder charge was found not to be essential for the DNA coiling, which implies that the DNA response is moderated by the short range interactions that define the molecular shape. Cylinder charge did, however, affect the integrity of the DNA duplex, to the extent that, under some circumstances, the tetracationic cylinder induced defects in the DNA base pairing at locations adjacent to the cylinder binding site
Shape effects on the activity of synthetic major-groove binding ligands
No full textIn this work we present the results of a molecular simulation study of two different tetracationic bis iron(II) supramolecular cylinders interacting with DNA. One cylinder has been shown to bind in the major groove of DNA and to induce dramatic coiling of the DNA; the second is a derivative of the first, with additional methyl groups attached so as to give a larger cylinder-radius. The simulations show that both cylinders bind strongly to the major groove of the DNA, and induce complex structural changes in A-T rich regions. Whereas the parent cylinder tends to bind along the major groove, the derivatised cylinder tends to twist so that only one end remains within the major groove. Both G-C rich and A-T rich binding sites for the derivatised cylinder are discussed. (c) 2006 Elsevier Inc. All rights reserved
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