Georgia College & State University

About: Georgia College & State University is a education organization based out in Milledgeville, Georgia, United States. It is known for research contribution in the topics: Population & Context (language use). The organization has 950 authors who have published 1591 publications receiving 37027 citations.

Utility of high resolution x-ray computed tomography (HRXCT) for paleobotanical studies: an example using London Clay fruits and seeds.

Abstract: High resolution x-ray computed tomography (HRXCT) was used to image pyritized fossil fruits from the Lower Eocene London Clay flora to test the utility of this technique for paleobotanical application. The combination of carbon-pyrite preservation and void spaces between fruit and seed layers within fossils provides differences in density and composition that enable excellent imaging. Fossil fruits of Palaeorhodomyrtus subangulata (Bowerbank) Reid & Chandler (Myrtaceae) were investigated in situ within their silicone fluid conservation medium, which protects these unstable fossils from oxygen and humidity. HRXCT recovers taxonomically informative anatomical and morphological detail and provides a means of nondestructive examination of delicate type materials and other important specimens. These results suggest that HRXCT will be applicable to a broad spectrum of pyritized fossils to record structural details in inherently unstable materials.

Impact of the Minimum Wage on Youth Labor Markets

Abstract: We study the effect of the minimum wage on labor market outcomes for young workers using US county-level panel data from the first quarter of 2000 to the first quarter of 2009. We go beyond the usual estimates of earnings and employment effects to consider how differences across states in the minimum wage affect worker turnover via separations and accessions and job turnover through new job creation and job losses. We find that a higher minimum wage level is associated with higher earnings, lower employment and reduced worker turnover for those in the 14–18 age group. For workers aged 19–21 and 22–24, we find less consistent evidence of minimum wage effects on earnings and employment. But, even for these age groups, a higher minimum wage is found to reduce accessions, separations and the turnover rate.

An alternative approach to treating lateral epicondylitis. A randomized, placebo-controlled, double-blinded study

Abstract: Objective: To investigate the effect of noxious level electrical stimulation on pain, grip strength and functional abilities in subjects with chronic lateral epicondylitis.Design: Randomized, placebo-control, double-blinded study.Setting: Physical Therapy Department, North Georgia College and State University.Subjects: Eighteen subjects with chronic lateral epicondylitis between the ages of 24 and 72 years participated in this study. Subjects were randomly assigned into treatment or placebo groups.Interventions: Subjects received six sessions of low-frequency electrical stimulation over the palpated tender points. The intensity of electrical stimulation was set at 0 in the placebo group.Main measurements: Grip strength, functional status, pain intensity and limited activity due to pain were assessed before and after treatment. Six-month follow-up data were collected in treatment group only.Results: Both clinically and statistically significant improvements in average grip strength were found (treatment gr...

Efficacy of a Computer-Assisted Instruction Program in a Prison Setting: An Experimental Study

Abstract: This article reports on a study into the efficacy of using computer-assisted instruction (CAI) with inmates participating in a prison education program. It seeks to address and correct many of the methodological problems commonly present among studies that compare a CAI-plus-traditional-instruction combination to traditional-instruction alone and is based on data obtained from inmate scores, interviews and educational records at a maximum-security prison. The study found no significant differences between control and experimental groups and leads to the conclusion that also emerged from other studies of undereducated populations: that CAI is neither an inferior nor superior methodology as compared to non-CAI, traditional methods of teaching the undereducated adult.

On the optimal control of the Vidale-Wolfe advertising model

Abstract: The Vidale-Wolfe advertising model is a singular optimal control problem with a non negative control. Sufficient conditions on a generalized time-varying market, for which a solution can be found, are given. Time is parametrized to describe impulsive optimal trajectories in a conventional manner. The solution is then found and verified by using the Hamilton-Jacobi-Bellman equation on the parametrized problem.