Globalization, Values Management, and Interpretations of Integrity in Higher Education: Perspectives from the Kingdom of Cambodia

As globalization moves higher education worldwide toward international confluence, local imperatives are sometimes overlooked in favor of indiscriminate norms. This study explored forces that impact higher education in an emerging educational center, especially as they are identified by students within that system. The findings revealed three areas of importance to the participants: a) the deep and continuous evolution of the education system in Cambodia, b) the value of social support systems, and c) the influence of a complex ethical system. The third area showcases the opposition between global forces of confluence and local values in higher education, and offers thoughtful practitioners the opportunity both to reconsider their own preconceptions and to work together with students and others to shape future systems in emerging higher education

Libbie & Grove Urban Design Plan

This plan was created for the City of Richmond Department of Planning and Development Review to serve as a recommendation for urban design improvements and suggested changes to zoning ordinances for the Libbie and Grove commercial area located in the Westhampton neighborhood. To begin, an in-depth demographic analysis was conducted for the Westhampton neighborhood. Special attention was paid to socioeconomic factors and trends in census tracts directly surrounding the Libbie and Grove commercial corridor. Based on these analyses and new development occurring in the Libbie and Grove commercial corridor, we were able to allocate six sites or “study areas” as candidates for redevelopment. All of these sites represent valuable areas within the Libbie and Grove commercial corridor. The sites were selected and designed with different intentions, but aim to create a complete streetscape for the commercial area. Based on this analysis and study, it is our recommendation that a new zoning code be implemented for the Libbie and Grove commercial area in order to codify form based design requirements in order to preserve and enhance a village feel at Grove and Libbie and promote compatible future development

Real-time D-brane condensation

Unstable D-branes or brane-antibrane systems can decay to lower-dimensional branes. In the effective field theory description, the final state branes are defects in the tachyon field which describes the initial instability. We study the dynamical formation of codimension one defects (kinks) using Sen's ansatz for the tachyon Lagrangian. It is shown that the slope of the kink diverges within a finite amount of time after the tachyon starts to roll. We discuss the relevance for reheating after brane-antibrane inflation.Comment: 10 pages, 5 figures; added reference to hep-th/020710

Nonvanishing Cosmological Constant of Flat Universe in Brane-World Scenario

The finite temperature effect is examined in Randall-Sundrum brane-world scenario with inclusion of the matter fields on the brane. At zero temperature it is found that the theory on the brane is conformally invariant, which guarantees $AdS$/CFT. At 4d effective action we derived a temperature-dependent nonvanishing cosmological constant at the flat spacetime limit of brane worldvolume. At the cosmological temperature $3 {\bf K}$ the cosmological constant is roughly $(0.0004 eV)^4$ which is within the upper bound of the recent experimental value $(0.01 eV)^4$Comment: 10 pages, 1 figure; V2 12 pages, figure removed, the contribution of matter to the cosmological constant is added, will appear in PL

Mirage Cosmology in M-theory

We extend the idea of mirage cosmology to M-theory. Considering the motion of a probe brane in the M-theory background generated by a stack of non-threshold (M2,M5) bound states, we study the cosmological evolution of the brane universe in this background. We estimate the range of $r$ where the formalism is valid. Effective energy density on the probe brane is obtained in terms of the scale factor. Comparing the limiting case of the result with that from type IIB background, we confirm that the cosmological evolution by mirage matter is a possible scenario in the M-theory context.Comment: 12 pages, effective matter density is expressed in terms of scale facto

Theory and laboratory astrophysics

Science opportunities in the 1990's are discussed. Topics covered include the large scale structure of the universe, galaxies, stars, star formation and the interstellar medium, high energy astrophysics, and the solar system. Laboratory astrophysics in the 1990's is briefly surveyed, covering such topics as molecular, atomic, optical, nuclear and optical physics. Funding recommendations are given for the National Science Foundation, NASA, and the Department of Energy. Recommendations for laboratory astrophysics research are given

Testing the Randall-Sundrum Model at a High Energy e−e−e^- e^- Collider

We study the process $e^- e^- \to e^- e^-$ at a high energy $e^- e^-$ collider including the effect of graviton exchanges in the warped gravity model of Randall and Sundrum. Discovery limits for gravitons are established and the effects of polarization are discussed.Comment: 10 pages LaTeX, 6 postscript figure

Compromise of Localized Graviton with a Small Cosmological Constant in Randall-Sundrum Scenario

A new mechanism which leads to a linearized massless graviton localized on the brane is found in the $AdS$/CFT setting, {\it i.e.} in a single copy of $AdS_5$ spacetime with a singular brane on the boundary, within the Randall-Sundrum brane-world scenario. With an help of a recent development in path-integral techniques, a one-parameter family of propagators for linearized gravity is obtained analytically, in which a parameter $\xi$ reflects various kinds of boundary conditions that arise as a result of the half-line constraint. In the case of a Dirichlet boundary condition ($\xi = 0$) the graviton localized on the brane can be massless {\it via} coupling constant renormalization. Our result supports a conjecture that the usual Randall-Sundrum scenario is a regularized version of a certain underlying theory.Comment: 6 pages, no figure, V2 12 pages, one more author added, will appear in PL

The Production, Spectrum and Evolution of Cosmic Strings in Brane Inflation

Brane inflation in superstring theory predicts that cosmic strings (but not domain walls or monopoles) are produced towards the end of the inflationary epoch. Here, we discuss the production, the spectrum and the evolution of such cosmic strings, properties that differentiate them from those coming from an abelian Higgs model. As D-branes in extra dimensions, some type of cosmic strings will dissolve rapidly in spacetime, while the stable ones appear with a spectrum of cosmic string tensions. Moreover, the presence of the extra dimensions reduces the interaction rate of the cosmic strings in some scenarios, resulting in an order of magnitude enhancement of the number/energy density of the cosmic string network when compared to the field theory case.Comment: 7 pages, revtex