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Full-Text Articles in Physics
Application Of The Fisher Dimer Model To Dna Condensation, John C. Baker Iii
Application Of The Fisher Dimer Model To Dna Condensation, John C. Baker Iii
Theses and Dissertations
This paper considers the statistical mechanics occupation of the edge of a single helix of DNA by simple polymers. Using Fisher's exact closed form solution for dimers on a two-dimensional lattice, a one-dimensional lattice is created mathematically that is occupied by dimers, monomers, and holes. The free energy, entropy, average occupation, and total charge on the lattice are found through the usual statistical methods. The results demonstrate the charge inversion required for a DNA helix to undergo DNA condensation.
Gravitational Microlensing, Wesley M. Barnes
Gravitational Microlensing, Wesley M. Barnes
Theses and Dissertations
A gravitational microlensing event occurs when a foreground star passes near our line of site to a background source star. The foreground star acts as a lens, perturbing the image of the source star and amplifying the apparent intensity. Because the lens is in motion relative to the source star, the amplification is a function in time, resulting in a characteristic microlensing light curve. If the lens happens to have a planetary companion, the resulting light curve will be perturbed due the planet and the characteristics of the binary system can be ascertained.