University of Arkansas

About: University of Arkansas is a education organization based out in Fayetteville, Arkansas, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 17225 authors who have published 33329 publications receiving 941102 citations. The organization is also known as: Arkansas & UA.

Ferroelectricity in barium titanate quantum dots and wires

Abstract: Properties of BaTiO 3 colloidal quantum dots and wires are simulated using a first-principles-based approach. Large atomic off-center displacements (that are robust against capping matrix materials) are found to exist in very small (<5 nm) dots. We further determine the size dependences of electrical and electromechanical responses in the studied nanostructures, as well as provide microscopic understanding of these responses.

Home Country Tax System Characteristics and Corporate Tax Avoidance: International Evidence

Abstract: We examine whether three tax system characteristics—required book-tax conformity, worldwide versus territorial approach, and perceived strength of enforcement—impact corporate tax avoidance across countries after controlling for firm-specific factors previously shown to be associated with tax avoidance (i.e., performance, size, operating costs, leverage, growth, the presence of multinational operations, and industry) and for other cross-country factors (i.e., statutory corporate tax rates, earnings volatility, and institutional factors). We find that, on average, firms avoid taxes less when required book-tax conformity is higher, a worldwide approach is used, and tax enforcement is perceived to be stronger. However, the relations between tax avoidance and all three tax systems characteristics are contextual and depend on the extent to which management compensation comes from variable pay, including bonuses, stock awards, and stock options. Data Availability: Data are available from sources ident...

Biomarkers in Sports and Exercise: Tracking Health, Performance, and Recovery in Athletes

Abstract: Biomarker discovery and validation is a critical aim of the medical and scientific community. Research into exercise and diet-related biomarkers aims to improve health, performance, and recovery in military personnel, athletes, and lay persons. Exercise physiology research has identified individual biomarkers for assessing health, performance, and recovery during exercise training. However, there are few recommendations for biomarker panels for tracking changes in individuals participating in physical activity and exercise training programs. Our approach was to review the current literature and recommend a collection of validated biomarkers in key categories of health, performance, and recovery that could be used for this purpose. We determined that a comprehensive performance set of biomarkers should include key markers of (a) nutrition and metabolic health, (b) hydration status, (c) muscle status, (d) endurance performance, (e) injury status and risk, and (f) inflammation. Our review will help coaches, clinical sport professionals, researchers, and athletes better understand how to comprehensively monitor physiologic changes, as they design training cycles that elicit maximal improvements in performance while minimizing overtraining and injury risk.