TRADABILITY AND MARKET EQUILIBRIUM FOR U.S.-MEXICO FRESH TOMATOES

Tomato trade between the U.S. and Mexico has grown significantly during the past decade. This increased trade, together with major structural changes in US produce marketing channels, has increased the complexity of conducting analysis of market integration and equilibrium. This study implements an Extended Parity Bounds Model (EPBM), following the work of Barrett and Li, to examine fresh tomato trade relationships between major shipping points and terminal markets for Mexican imported and Florida and California tomatoes. Findings suggest that, although markets seem relatively integrated and efficient, there exist some potential for claims of inefficient or overly competitive behavior. As is expected, the more complex the marketing channels between producer and wholesaler (distance or international boundaries), the more likely that markets operate suboptimally.International Relations/Trade,

An Empirical Analysis of Market Integration and Efficiency for U.S. Fresh Tomato Markets

Fresh tomato trade between the United States and Mexico grew significantly during the 1990s. Moreover, major structural changes in U.S. produce marketing channels increase the complexity of conducting analyses to delineate the impact of liberalized trade. Following the work of Barrett, Li, and Bailey, this study implements a mixed distribution to examine spatial-price relationships between major shipping points and terminal markets for Mexican imported, and Florida and California tomatoes. Although markets are often efficiently integrated, results suggest strategic pricing and product shipments may exist and vary among terminal markets in Los Angeles, Boston, and Chicago.market integration, North American tomato trade, spatial analysis, tomato markets, Industrial Organization,

What’s new in the YRRS? A look at new questionnaire items with a focus on sexual minority status.

Presented at: 2015 Annual Conference of the New Mexico Public Health Association; March 31-April 1, 2015; Albuquerque, NM.https://digitalrepository.unm.edu/prc-posters-presentations/1039/thumbnail.jp

NUMERICAL ANALYSIS OF THE NATURAL CONVECTION IN HORIZONTAL ANNULI AT LOW AND MODERATE Ra

The natural convection at low and moderate Rayleigh numbers (Ra) incylindrical horizontal annuli with imposed temperatures in both surfaces isnumerically studied. This flow inside concentric cylinders classic configuration has a wide range of practical and technological applications, which justifies its growing studies efforts. In this work, the governing equations are discretized by the volume finite technique over a staggered grid, with second-order accuracy in space and time. The flow pattern is presented by several Rayleigh numbers, with an analysis of the heat transfer coefficient and flow properties. Furthermore, a three-dimensional field is shown at a moderate Ra number. The results showed a good agreement with the experimental data

Aging in lattice-gas models with constrained dynamics

We investigate the aging behavior of lattice-gas models with constrained dynamics in which particle exchange with a reservoir is allowed. Such models provide a particularly simple interpretation of aging phenomena as a slow approach to criticality. They appear as the simplest three dimensional models exhibiting a glassy behavior similar to that of mean field (low temperature mode-coupling) models.Comment: 5 pages and 3 figures, REVTeX. Submitted to Europhysics Letter

Stealth Acceleration and Modified Gravity

We show how to construct consistent braneworld models which exhibit late time acceleration. Unlike self-acceleration, which has a de Sitter vacuum state, our models have the standard Minkowski vacuum and accelerate only in the presence of matter, which we dub ``stealth-acceleration''. We use an effective action for the brane which includes an induced gravity term, and allow for an asymmetric set-up. We study the linear stability of flat brane vacua and find the regions of parameter space where the set-up is stable. The 4-dimensional graviton is only quasi-localised in this set-up and as a result gravity is modified at late times. One of the two regions is strongly coupled and the scalar mode is eaten up by an extra symmetry that arises in this limit. Having filtered the well-defined theories we then focus on their cosmology. When the graviton is quasi-localised we find two main examples of acceleration. In each case, we provide an illustrative model and compare it to LambdaCDM.Comment: 32 pages, 5 figure

Product CFTs, gravitational cloning, massive gravitons and the space of gravitational duals

The question of graviton cloning in the context of the bulk/boundary correspondence is considered. It is shown that multi-graviton theories can be obtained from products of large-N CFTs. No more than one interacting massless graviton is possible. There can be however, many interacting massive gravitons. This is achieved by coupling CFTs via multi-trace marginal or relevant perturbations. The geometrical structure of the gravitational duals of such theories is that of product manifolds with their boundaries identified. The calculational formalism is described and the interpretation of such theories is discussed.Comment: Latex, 25 pages. (v2) Minor corrections and references adde

An Archaeological Survey of 307 Acres at Camp Swift, Bastrop County, Texas: 2003

This report documents an archaeological survey of 307 acres at Camp Swift, in north-central Bastrop County, Texas. Camp Swift is owned by the Texas Army National Guard office of Adjutant General (hereinafter referred to as AGTX). A total of 11 previously unrecorded sites were documented during this projec