African-American Legislators Post-Katrina: Race, Representation, and Voting Rights Issues in the Louisiana House

Since the passage of the Voting Rights Act of 1965 (VRA), the number of African- Americans competing for and holding state legislative offices has increased significantly. Their growth is most notable in southern state legislatures. A growing number of studies have been devoted to African-Americans in these state legislatures. Absent from previous studies is a comprehensive analysis of African-Americans in the Louisiana state legislature. In 2007 there were a total of 32 African-American legislators. Louisiana ranks among other states with the highest number, 32, and percentage, 22, of African-American legislators. Yet, despite their relatively large presence few scholarly studies have examined their legislative behavior. This study focused primarily on the substantive representation of African-Americans, especially during the post-Hurricane Katrina period. In this dissertation, the following questions were examined: Have the growing number of these legislators resulted in greater influence in state policy-making? Have they chaired any important, policy-relevant committees in the state legislature? Have they articulated and advocated a race-based legislative agenda for African-American constituents? Using a multi-methodological approach including the analysis of voting rights legislation introduced in the post-Hurricane Katrina legislative sessions and qualitative interviews, evidence was found to conclude that African-American House members have provided substantive representation to their constituents, obtained key institutional leadership positions, and campaigned in biracial terms, which has contributed to there ability to have a notable impact in the chamber

Alien Registration- Hoston, James G. (Rumford, Oxford County)

https://digitalmaine.com/alien_docs/12434/thumbnail.jp

Reentrant Phase Transitions of the Blume-Emery-Griffiths Model for a Simple Cubic Lattice on the Cellular Automaton

The spin-1 Ising (BEG) model with the nearest-neighbour bilinear and biquadratic interactions and single-ion anisotropy is simulated on a cellular automaton which improved from the Creutz cellular automaton(CCA) for a simple cubic lattice. The simulations have been made for several sets of parameters $K/J$ and $D/J$ in the $-3<D/J\leq 0$ and $-1\leq K/J\leq 0$ parameter regions. The re-entrant and double re-entrant phase transitions of the BEG model are determined from the temperature variations of the thermodynamic quantities ($M$, $Q$ and $\chi$). The phase diagrams characterizing phase transitions are compared with those obtained from other methods.Comment: 12 pages 7 figure

Mean Field Critical Behaviour for a Fully Frustrated Blume-Emmery-Griffiths Model

We present a mean field analysis of a fully frustrated Ising spin model on an Ising lattice gas. This is equivalent to a degenerate Blume-Emery-Griffiths model with frustration, which we analyze for different values of the quadrupolar interaction. This model might be useful in the study of structural glasses and related systems with disorder

Interference Effects between Three Coupled Bose-Einstein Condensates

We study the interference effects between three weakly linked trapped Bose-Einstein condensates (BEC) as a generalization of the two-component condensates. Three coupled Gross-Pitaevskii equations (GPE) are used to describe the dynamics of the system. The nonsinusoidal oscillation is found as a generalization of the Josephson effect in superconductivity. The self-trapped effects are also predicted in three coupled BEC. Moreover, in general case, the phase diagrams of the system are closed only for some special parameters, which can be used to determine the interaction parameters between atoms in BEC.Comment: 4 figure

Individual Practices to Increase the Graduation Rate of African American Students at Predominantly White Colleges and Universities

African American students face a number of institutional barriers when admitted to Predominantly White Colleges and Universities (PWCUs). Many of the obstacles they encounter are related to historical racism, stereotypes, and prejudices embedded in the culture of these institutions. Even though the enrollment of African American students at these institutions continues to increase, their completion rate remains low. While past studies have examined institutional strategies to increase African American graduation rate, they have failed to provide recommendations on the individual level for these students to practice. This article explores an important questions: What individual strategies are important for African American students to practice in an effort to graduate from PWCUs? Using semi-structured interviews of tenured Africam American faculty at PWCUs, ten recommendations were proposed to practice

Statistical Mechanics of Surface Systems and Quantum-Correlated Systems

Contains table of contents for Section 4, an introduction, reports on five research projects and a list of publications.Joint Services Electronics Program Contract DAAL03-92-C-000

Kinetics of a mixed spin-1/2 and spin-3/2 Ising ferrimagnetic model

We present a study, within a mean-field approach, of the kinetics of a mixed ferrimagnetic model on a square lattice in which two interpenetrating square sublattices have spins that can take two values, $\sigma=\pm1/2$, alternated with spins that can take the four values, $S=\pm3/2, \pm1/2$. We use the Glauber-type stochastic dynamics to describe the time evolution of the system with a crystal-field interaction in the presence of a time-dependent oscillating external magnetic field. The nature (continuous and discontinuous) of transition is characterized by studying the thermal behaviors of average order parameters in a period. The dynamic phase transition points are obtained and the phase diagrams are presented in the reduced magnetic field amplitude $(h)$ and reduced temperature $(T)$ plane, and in the reduced temperature and interaction parameter planes, namely in the $(h, T)$ and $(d, T)$ planes, $d$ is the reduced crystal-field interaction. The phase diagrams always exhibit a tricritical point in $(h, T)$ plane, but do not exhibit in the $(d, T)$ plane for low values of $h$. The dynamic multicritical point or dynamic critical end point exist in the $(d, T)$ plane for low values of $h$. Moreover, phase diagrams contain paramagnetic $(p)$, ferromagnetic $(f)$, ferrimagnetic $(i)$ phases, two coexistence or mixed phase regions, $(f+p)$ and $(i+p)$, that strongly depend on interaction parameters.Comment: 13 pages, 6 figures, submitted to Journal of Magnetism and Magnetic Material

Statistical Mechanics of Constrained Electronic Systems and Semiconductor Structures

Contains table of contents for Section 4, an introduction, reports on four research projects and a list of publications.Joint Services Electronics Program Contract DAAL03-92-C-000

The extended Hubbard model in the ionic limit

In this paper, we study the Hubbard model with intersite Coulomb interaction in the ionic limit (i.e. no kinetic energy). It is shown that this model is isomorphic to the spin-1 Ising model in presence of a crystal field and an external magnetic field. We show that for such models it is possible to find, for any dimension, a finite complete set of eigenoperators and eigenvalues of the Hamiltonian. Then, the hierarchy of the equations of motion closes and analytical expressions for the relevant Green's functions and correlation functions can be obtained. These expressions are formal because these functions depend on a finite set of unknown parameters, and only a set of exact relations among the correlation functions can be derived. In the one-dimensional case we show that by means of algebraic constraints it is possible to obtain extra equations which close the set and allow us to obtain a complete exact solution of the model. The behavior of the relevant physical properties for the 1D system is reported.Comment: 19 pages, 9 figures, 16 panel