Cryptobranchus, and C. alleganiensis

Number of Pages: 4Integrative BiologyGeological Science

Eurycea multiplicata

Number of Pages: 2Place of Publication: Kensington, MarylandIntegrative BiologyGeological Science

Eurycea tynerensis

Number of Pages: 2Place of Publication: Kensington, MarylandIntegrative BiologyGeological Science

Moduli stabilization and SUSY breaking in heterotic orbifold string models

In this paper we discuss the issues of supersymmetry breaking and moduli stabilization within the context of E_8 x E_8 heterotic orbifold constructions and, in particular, we focus on the class of "mini-landscape" models. In the supersymmetric limit, these models admit an effective low energy field theory with a spectrum of states and dimensionless gauge and Yukawa couplings very much like that of the MSSM. These theories contain a non-Abelian hidden gauge sector which generates a non-perturbative superpotential leading to supersymmetry breaking and moduli stabilization. We demonstrate this effect in a simple model which contains many of the features of the more general construction. In addition, we argue that once supersymmetry is broken in a restricted sector of the theory, then all moduli are stabilized by supergravity effects. Finally, we obtain the low energy superparticle spectrum resulting from this simple model.Comment: LaTeX, v2: 57+1 pages, 4 figures, 8 Tables, added references; this version i) discusses volume moduli stabilization with exponentials of both sign (as sometimes mandated by modular invariance); ii) includes the anomalous U(1)_A D-term & the leading Coleman-Weinberg 1-loop correction into the MSSM soft masses to prevent tachyonic results

Reconciling Grand Unification with Strings by Anisotropic Compactifications

We analyze gauge coupling unification in the context of heterotic strings on anisotropic orbifolds. This construction is very much analogous to effective 5 dimensional orbifold GUT field theories. Our analysis assumes three fundamental scales, the string scale, \mstring, a compactification scale, \mc, and a mass scale for some of the vector-like exotics, \mex; the other exotics are assumed to get mass at \mstring. In the particular models analyzed, we show that gauge coupling unification is not possible with \mex = \mc and in fact we require \mex \ll \mc \sim 3 \times 10^{16} GeV. We find that about 10% of the parameter space has a proton lifetime (from dimension 6 gauge exchange) $10^{33} {\rm yr} \lesssim\tau(p\to \pi^0e^+) \lesssim 10^{36} {\rm yr}$. The other 80% of the parameter space gives proton lifetimes below Super-K bounds. The next generation of proton decay experiments should be sensitive to the remaining parameter space.Comment: 36 pages and 5 figures, contains some new references and additional paragraph in conclusio

On Solid Ground I Stand: Narratives on Disclosure, Resilience, and Faith Amidst Recognition of Childhood Sexual Abuse

Childhood sexual abuse seems to be a hidden secret in American society; one of the famous, If we don\u27t talk about it, it won\u27t happen narratives. However, we know this is not true. Both the National Sexual Violence Resource Center (2012) and Center for Disease Control and Prevention (2005) state one in four girls and one in six boys will fall victim to sexual abuse before they celebrate their 18th birthday. There is a high probability that because of the alarming lack of disclosure of male survivors, these statistics could be incorrect and could hinder creating or allowing for conversations regarding childhood sexual abuse (CSA). For this study, I use autoethnography to provide narrative about my experiences as a male survivor of childhood sexual abuse. Focusing on narrative as a way of knowing, I analyze the narrative through a mini-thematic analysis, using Owen\u27s (1984) definition of a theme. Through this analysis, I find four major themes: moments, hearing/listening to God, using conversations as tools, and concern for others. I examine literature on masculinity, disclosure, narrative, resilience, faith and social support. I then provide narratives form my own experiences with childhood sexual abuse, and seek out how disclosure and faith play a role in resiliency

Aspects of the biology of Pomatiopsis lapidaria (Say) (Mollusca: Gastropoda: Prosobranchia)

http://deepblue.lib.umich.edu/bitstream/2027.42/56344/1/MP100.pd