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Articles 1 - 8 of 8

Full-Text Articles in Physical Sciences and Mathematics

Self-Similarity And Symmetries Of Pascal’S Triangles And Simplices Mod P, Richard P. Kubelka Feb 2004

Self-Similarity And Symmetries Of Pascal’S Triangles And Simplices Mod P, Richard P. Kubelka

Faculty Publications

No abstract provided.


Lanthanide Spectroscopic Studies Of The Dinuclear And Mg(Ii)-Dependent Pvuii Restriction Endonuclease, Gilles Muller, L. M. Bowen, J. P. Riehl, C. M. Dupureur Jan 2004

Lanthanide Spectroscopic Studies Of The Dinuclear And Mg(Ii)-Dependent Pvuii Restriction Endonuclease, Gilles Muller, L. M. Bowen, J. P. Riehl, C. M. Dupureur

Faculty Publications, Chemistry

Type II restriction enzymes are homodimeric systems that bind four to eight base pair palindromic recognition sequences of DNA and catalyze metal ion-dependent phosphodiester cleavage. While Mg(II) is required for cleavage in these enzymes, in some systems Ca(II) promotes avid substrate binding and sequence discrimination. These properties make them useful model systems for understanding the roles of alkaline earth metal ions in nucleic acid processing. We have previously shown that two Ca(II) ions stimulate DNA binding by PvuII endonuclease and that the trivalent lanthanide ions Tb(III) and Eu(III) support subnanomolar DNA binding in this system. Here we capitalize on this …


Relation Between Increased Transmision In Xas And Increase In Abrikosov Vortices As T→Tc, J. Chigvinadze, G. Mamniashvilli, Juana Acrivos Jan 2004

Relation Between Increased Transmision In Xas And Increase In Abrikosov Vortices As T→Tc, J. Chigvinadze, G. Mamniashvilli, Juana Acrivos

Faculty Publications, Chemistry

The increased transmission, observed in the EXAFS region of their X-ray absorption spectra, as cuprate materials go through the superconducting transition temperature Tc is correlated with a critical increase in Abrikosov Vortex expulsion in zero magnetic field as the temperature T →Tc.


Theory And Experiments: Scf Calculations/Xrd/Enhanced Scattering/Pld In Ybco7-D Nano Film, H. Sahibudeen, M. Navacerrada, Juana Acrivos Jan 2004

Theory And Experiments: Scf Calculations/Xrd/Enhanced Scattering/Pld In Ybco7-D Nano Film, H. Sahibudeen, M. Navacerrada, Juana Acrivos

Faculty Publications, Chemistry

X-Ray diffraction above and below the transition temperature to superconductivity Tc are correlated using SCF-MOLECOLE computations that describe the CuO2 layer (fig. 1) in the field of 9 unit cells of YBa2Cu3O7. The MO symmetry, charge transfer and OAOB bond mobility are compared to the data using the highest occupiedmolecular orbitals, MO-i (HOMO=MO0) bases to construct the layer tight-binding extended state.


Self Consistent Field, Scf Homo And Lumo For Cuo2 Layer In Cuprates, H. Sahibudeen, Juana Acrivos Jan 2004

Self Consistent Field, Scf Homo And Lumo For Cuo2 Layer In Cuprates, H. Sahibudeen, Juana Acrivos

Faculty Publications, Chemistry

Before photoemission studies [1995] measured the symmetry of layer cuprate conduction states along the (xy),(-x-y) direction of the unit cell, a SCF analysis [1993] gave the symmetry of the HOMO & LUMO showing O:2pxy-O:2pxy charge de-localization for the conducting CuO2 layer in a superconducting cuprate (T'-Nd2CuO4 in the crystal field of point charges of nearest neighbor unit cells). The predictive power of MO calculations are applied now to understand the concept of valence and periodic lattice distortions commonly found in these solids [2003].


Pokémon® Cards And The Shortest Common Superstring, Mark Stamp, Austin Stamp Jan 2004

Pokémon® Cards And The Shortest Common Superstring, Mark Stamp, Austin Stamp

Faculty Publications, Computer Science

Evidence is presented that certain sequences of Pokémon cards are determined by selecting consecutive elements from a longer sequence. We then consider the problem of recovering the shortest common superstring (SCS), i.e., the shortest string that contains each of the Pokémon card sequences as a consecutive substring. The SCS problem arises in many applications, most notably in DNA sequencing.


Rectification Of Thermal Fluctuations In Ideal Gases, Alejandro Garcia, P. Meurs, C. Van De Broeck Jan 2004

Rectification Of Thermal Fluctuations In Ideal Gases, Alejandro Garcia, P. Meurs, C. Van De Broeck

Faculty Publications

We calculate the systematic average speed of the adiabatic piston and a thermal Brownian motor, introduced by C. Van den Broeck, R. Kawai and P. Meurs [Phys. Rev. Lett. 93, 090601 (2004)], by an expansion of the Boltzmann equation and compare with the exact numerical solution.


Enhanced Resonant Soft X-Ray Scattering Yba2cu3o7-X 50 Nm Thin Films On Bycristalline Substrates, M. Navacerrada, H. Sahibudeen, Jeffrey Kortright, Juana Acrivos Jan 2004

Enhanced Resonant Soft X-Ray Scattering Yba2cu3o7-X 50 Nm Thin Films On Bycristalline Substrates, M. Navacerrada, H. Sahibudeen, Jeffrey Kortright, Juana Acrivos

Faculty Publications, Chemistry

No abstract provided.