In this thesis, I present new spectroscopic and photometric observations of WASP-3, a transiting extrasolar planetary system. From spectra obtained during two transits, I use the Rossiter-McLaughlin effect in a simplified physical model to determine the projected spin-orbit angle between the planetary orbital axis and the stellar rotation axis, A = 2 .91 4 degrees. I use the new photometric dat...

We give an explicit demonstration, using the rigorous Feynman rules developed in , that the regularized trace Trγ5e −βD/ for the gravitational chiral anomaly expressed as an appropriate quantum mechanical path integral is β-independent up to two-loop level. Identities and diagrammatic notations are developed to facilitate rapid evaluation of graphs given by these rules. It is an old observation...

Early detection of disease outbreaks, particularly an outbreak due to an act of bioterrorism, is a critically important problem due to the potential to reduce both morbidity and mortality. One of the most lethal bioterrorism scenarios is a large-scale release of inhalational anthrax. The Population-wide Anomaly Detection and Assessment (PANDA) algorithm [1] is specifically designed to monitor h...

This article investigates through numerical experiments the controversial question of the impact of El Nin̂o-Southern Oscillation (ENSO) phenomena on climate according to large-scale and regional-scale interhemispheric thermal contrast. Eight experiments (two considering only inversed Atlantic thermal anomalies and six combining ENSO warm phase with large-scale interhemispheric contrast and Atla...

We investigate the question of independent and coherent production of pions in high energy processes. A model for coherent production is suggested and the restrictions due to momentum conservation, charge conservation, and isospin conservation are dealt with in detail. A formalism for the isospin analysis of identical pions is developed and applied to coherent states. Results and consequences a...

in order to obtain maximum information from magnetic and gravity anomaly maps, application of an edgedetection method is necessary. in this regard two commonly used methods are derivative filters and local phase filters. in this paper, a matlab code is expanded to combine an analytic signal filter and a tilt angle filter as a new edge detection filter called asta filter. this method was demonst...

In this study, 115 samples taken from the stream sediments were analyzed for concentrations of As, Co, Cr, Cu, Ni, Pb, W, Zn, Au, Ba, Fe, Mn, Sr, Ti, U, V and Zr. In order to outline mineralization-derived stream sediments, various mapping techniques including fuzzy factor score, geochemical halos and fractal model were used. Based on these models, concentrations of Co, Cr, Ni, Zn, Ba, Fe, Mn, ...