Global description of action-angle duality for a Poisson-Lie deformation of the trigonometric BCn\mathrm{BC}_n Sutherland system

Integrable many-body systems of Ruijsenaars--Schneider--van Diejen type displaying action-angle duality are derived by Hamiltonian reduction of the Heisenberg double of the Poisson-Lie group $\mathrm{SU}(2n)$. New global models of the reduced phase space are described, revealing non-trivial features of the two systems in duality with one another. For example, after establishing that the symplectic vector space $\mathbb{C}^n\simeq\mathbb{R}^{2n}$ underlies both global models, it is seen that for both systems the action variables generate the standard torus action on $\mathbb{C}^n$, and the fixed point of this action corresponds to the unique equilibrium positions of the pertinent systems. The systems in duality are found to be non-degenerate in the sense that the functional dimension of the Poisson algebra of their conserved quantities is equal to half the dimension of the phase space. The dual of the deformed Sutherland system is shown to be a limiting case of a van Diejen system.Comment: 39 pages, some stylistic changes and typos removed in v

WHO CHOOSES TO OWN A MANUFACTURED HOME ?

Little research has been conducted on the choice of dwelling by U.S. homeowners. Few studies have included manufactured housing into the dwelling choices available to homeowners. This study focuses on the effects of demographic and socioeconomic variables on a household’s choice to own a manufactured home. A multinomial logit model was used to determine what type of households chooses to own a manufactured home when other traditional dwelling choices are available. I found that income and education play a major role in dwelling choice.Manufactured Housing; Housing Choice; Dwelling Choice, Multinomial Logit

POLITICAL MARKET IMPACTS ON MEXICAN IMPORT PERMITS FOR WHITE CORN

Crop Production/Industries, International Relations/Trade,

Multimedia courseware: Never mind the quality how much will it cost to develop?

This paper evaluates multimedia courseware costing techniques such as the US Airforce Interactive Courseware Method (Golas, 1993), CBT Analyst (Kearsley, 1985), CEAC (Schooley, 1988) and MEEM (Marshall, Samson, Dugard, & Scott, 1994) against the data from ten multimedia courseware developments. The Relative Error and Mean Absolute Relative Error (MARE) are calculated to allow comparison of the different methods

How Beneficial is Tourism? An Analysis of the Economic Impact of Tourism in Il N'gwesi, Kenya

This paper is a study of the economic effects of tourism in Il N'gwesi, Kenya. This group ranch has been greatly influenced by tourism and conservation efforts in recent years. It neighbors several conservation and tourism centers and in 1996 members set aside 80% of their communal land for a conservation area and initiated a community run Eco Lodge. This paper studies the potential negative effects of tourism on Il N'gwesi as well as which variables impact conservation friendly expenditure decisions. A statistical analysis reveals that group ranch members perceive that there had been inflation in the prices of land, food, and goods and services. However, close to 100 percent of households do not believe that the inflation is due to the Eco Lodge. A statistical analysis of perceptions of wildlife and conservation reveal that there is no significant difference in how households value wildlife and conservation, regardless of whether they have suffered from wildlife damage or not. Probit models were used to evaluate how respondent characteristics and types of employment influence household choice of expenditure. This revealed that providing people with economic incentives to make conservation friendly decisions does not appear to be working in Il N'gwesi.Community/Rural/Urban Development,

Exploring modality switching effects in negated sentences: further evidence for grounded representations

Theories of embodied cognition (e.g., Perceptual Symbol Systems Theory; Barsalou, 1999, 2009) suggest that modality specific simulations underlie the representation of concepts. Supporting evidence comes from modality switch costs: participants are slower to verify a property in one modality (e.g., auditory, BLENDER-loud) after verifying a property in a different modality (e.g., gustatory, CRANBERRIES-tart) compared to the same modality (e.g., LEAVES-rustling, Pecher et al., 2003). Similarly, modality switching costs lead to a modulation of the N400 effect in event-related potentials (ERPs; Collins et al., 2011; Hald et al., 2011). This effect of modality switching has also been shown to interact with the veracity of the sentence (Hald et al., 2011). The current ERP study further explores the role of modality match/mismatch on the processing of veracity as well as negation (sentences containing “not”). Our results indicate a modulation in the ERP based on modality and veracity, plus an interaction. The evidence supports the idea that modality specific simulations occur during language processing, and furthermore suggest that these simulations alter the processing of negation

ENDOGENOUS PROTECTION IN THE MEXICAN CORN AND SORGHUM MARKET

Trade relations between the United States (U.S) and Mexico are increasingly interrelated and important ever since the ratification of NAFTA in 1994. With the advent of NAFTA, tariffs on many agricultural products were lowered or are in the process of being lowered. Mexico implements a tariff-rate quota for corn which is to be phased out by 2009. This quota is divided among the various Mexican corn importers with "cupos", which are import permits. Import permits are administrative trade barriers that can be defined as any obstacle that appears and disappears as market conditions change. It is widely recognized in the literature that administrative trade barriers create numerous obstacles to the international exchange of agricultural products. In this paper a conceptual structural model of international marketing margins and trade uncertainty is specified that links the private market to political factors influencing administrative trade barriers. In doing so, this systematically links trade models specified by Gallagher (1998) and others, which characterize private markets under uncertainty but ignore direct influences from political markets, to work by Trefler (1993) and others, which focus on endogenous trade protection. The general objective of this study is to increase the understanding of the impact of institutional aspects on agricultural trade. The specific objectives are to quantify the impact of import permits for white and yellow corn on international marketing margins between the U.S. and Mexico for white corn, yellow corn, and sorghum, as well as approximate the impact of changing political market variables on total welfare. Conceptually understanding the underlying processes and estimating empirical relationships for these objectives leads to important insights into the effect of the Mexican government's policy of allocating corn import permits have on the price and quantity of corn and sorghum. A complete structural model of white corn, yellow corn, and sorghum is specified, wherein import demand equations are generalized to incorporate simultaneous variables of trade protection (Trefler 1993) and then estimated with a simultaneous tobit estimator. The results provide interesting insights into the way that import permits work in Mexico. Interestingly, generalizing the import demand equations to account for trade protection dramatically alters international marketing margins for white corn and sorghum in a manner consistent with findings in Trefler. However, yellow corn appears unaffected. Further, political and industry interests driving trade protection in Mexico are found to influence import demand. For example, political pressure from corn and sorghum producers has a negative affect on the import demand for corn and sorghum. These results are consistent with other conjectures and findings in public choice analysis, which indicate that increases in import penetration will increase lobbying efforts from domestic firms to decrease imports. These results indicate that as grain producers lobby for a decrease in import permit allocations the import demand for these grains decreases, meaning that they have succeeded in their efforts to reduce import competition. In all, these insights provide the means to better understand how subtle trade barriers affect the trade flow between countries.Crop Production/Industries,