Black Hole Entropy in Loop Quantum Gravity and Number Theory

We show that counting different configurations that give rise to black hole entropy in loop quantum gravity is related to partitions in number theory.Comment: 6 page

Pushing and Pulling Emerging Adults through College: College Generational Status and the Influence of Parents and Others in the First Year

Interview, survey, and academic transcript data with a diverse sample of first-generation college (FGC) and continuing generation college (CGC) premedical intended emerging adults are analyzed to study academic outcomes and any differences in the availability and use of social capital the first year of college. CGC students know many people with college degrees including those in careers they aspire to obtain, while FGC students do not. All students identify parents as very important forms of social capital who contribute to their success in college, but the types of support differs by educational background. Students whose parents have at least a bachelor’s degree (CGC) are “pulled” through their first year with specific advice from their parents about how to succeed in college, while FGC students are “pushed” by their parents with support. In addition, CGC students display evidence of enacting Lareau’s concept of concerted cultivation, being much more likely than FGC students to approach and gain assistance from professors, openly critiquing those professors and classes in which they are not doing well and showing a sense of entitlement to and confidence in their ability to stay on the premedical track, even when receiving low test scores

BTZ Black Hole Entropy in Loop Quantum Gravity and in Spin Foam Models

We present a comparison of the calculation of BTZ black hole entropy in loop quantum gravity and in spin foam models. We see that both give the same answer.Comment: 10 pages, 3 figures, Final version, improve

Predicting rogue waves in random oceanic sea states

Using the inverse spectral theory of the nonlinear Schrodinger (NLS) equation we correlate the development of rogue waves in oceanic sea states characterized by the JONSWAP spectrum with the proximity to homoclinic solutions of the NLS equation. We find in numerical simulations of the NLS equation that rogue waves develop for JONSWAP initial data that is ``near'' NLS homoclinic data, while rogue waves do not occur for JONSWAP data that is ``far'' from NLS homoclinic data. We show the nonlinear spectral decomposition provides a simple criterium for predicting the occurrence and strength of rogue waves (PACS: 92.10.Hm, 47.20.Ky, 47.35+i).Comment: 7 pages, 6 figures submitted to Physics of Fluids, October 25, 2004 Revised version submitted to Physics of Fluids, December 12, 200