Oklahoma City University

About: Oklahoma City University is a education organization based out in Oklahoma City, Oklahoma, United States. It is known for research contribution in the topics: Supreme court & Comparative law. The organization has 240 authors who have published 421 publications receiving 6923 citations.

Extreme response style in cross‐cultural research

Abstract: The study investigates extreme response style (ERS) in cross‐cultural research. Through a four‐country application of the Greenleaf ERS measure, finds that ERS varies between cultures and across response formats. Evidence is also found that the acquiescence response style (ARS) varies between cultures and response formats. Through a series of ANOVAs, it is shown how a post hoc response style adjustment can be used to minimize between‐group differences for ERS and ARS. Finally, this study illustrates how cross‐cultural market researchers, using a marketing‐oriented survey instrument like the CETSCALE, could reach erroneous conclusions by failing to adjust for between‐group difference in ERS. Implications for cross‐cultural marketing research are discussed.

Socially desirable response sets: The impact of country culture.

Abstract: The present research explores differences in social-desirability response bias across cultures. Results indicate a significant difference in response bias between Western and Eastern subjects that may be attributed to differences in the dominant cultural dimensions of the subject's country of origin. Additional analysis reveals surprising results regarding the measurement-scale properties themselves. The unexpected findings raise concerns about the cross-cultural generalizability of the Marlowe–Crowne Social Desirability scale. © 2000 John Wiley & Sons, Inc.

A chloroplast-localized dual-specificity protein phosphatase in Arabidopsis contains a phylogenetically dispersed and ancient carbohydrate-binding domain, which binds the polysaccharide starch.

Abstract: Dual-specificity protein phosphatases (DSPs) are important regulators of a wide variety of protein kinase signaling cascades in animals, fungi and plants. We previously identified a cluster of putative DSPs in Arabidopsis (including At3g52180 and At3g01510) in which the phosphatase domain is related to that of laforin, the human protein mutated in Lafora epilepsy. In animal and fungal systems, the laforin DSP and the beta-regulatory subunits of AMP-regulated protein kinase (AMPK) and Snf-1 have all been demonstrated to bind to glycogen by a glycogen-binding domain (GBD). We present a bioinformatic analysis which shows that these DSPs from Arabidopsis, together with other related plant DSPs, share with the above animal and fungal proteins a widespread and ancient carbohydrate-binding domain. We demonstrate that DSP At3g52180 binds to purified starch through its predicted carbohydrate-binding region, and that mutation of key conserved residues reduces this binding. Consistent with its ability to bind exogenous starch, DSP At3g52180 was found associated with starch purified from Arabidopsis plants and suspension cells. Immunolocalization experiments revealed a co-localization with chlorophyll, placing DSP At3g52180 in the chloroplast. Gene-expression data from different stages of the light-dark cycle and across a wide variety of tissues show a strong correlation between the pattern displayed by transcripts of the At3g52180 locus and that of genes encoding key starch degradative enzymes. Taken together, these data suggest the hypothesis that plant DSPs could be part of a protein assemblage at the starch granule, where they would be ideally situated to regulate starch metabolism through reversible phosphorylation events.

Improved Hardy and Rellich inequalities on Riemannian manifolds

Abstract: In this paper we establish improved Hardy and Rellich type inequalities on a Riemannian manifold M. Furthermore, we also obtain sharp constants for improved Hardy and Rellich type inequalities on the hyperbolic space ℍ n .