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.

Further Support for Using the Dementia Rating Scale in the Assessment of Neuro-Cognitive Functions of Individuals with Mental Retardation

Abstract: The utility of the Dementia Rating Scale (DRS) when administered to individuals with mental retardation (MR) was examined. Our sample was comprised of individuals residing in an intermediate care facility in the southeastern United States, included individuals diagnosed with mild, moderate, or severe MR, and consisted of both Caucasians (50%) and individuals of African-American descent (50%). Descriptive statistics for the DRS Total Score and five subtests (e.g., Attention, Initiation/Perseveration, Construction, Conceptualization, and Memory) obtained from our sample of individuals with mild MR compared favorably with previously published values. The group with mild MR performed significantly better than the group with moderate MR on the Total Score and all subtests except Construction, and the group with moderate MR performed significantly better than individuals with severe MR on all measures. These results show that the DRS can provide information about the cognitive strengths and weaknesses of indivi...

Assessment of faecal pollution and relative algal abundances in Lakes Oconee and Sinclair, Georgia, USA

Abstract: Water quality was assessed for five subregions of Lake Oconee and Lake Sinclair in Georgia, USA. The areas were chosen for their levels of human impact, including: (i) suburban development >30 years old; (ii) modern suburban development; (iii) industry; (iv) agriculture; and (v) an area of low human activity. The measured temperature, pH, dissolved oxygen concentration and turbidity values were normal for oligotrophic lakes. Faecal pollution in the lakes was determined using the membrane filtration method (Method 1600) on mEI plates for enterococci. There was a positive correlation between turbidity and the number of faecal enterococci in the lakes. The faecal pollution level was higher for the old suburban and agricultural areas. Faecal pollution in the agricultural region of Lake Oconee exceeded EPA regulatory standards. The faecal pollution source was identified using polymerase chain reaction detection, with Bifidobacterium adolescentis being a marker of human faecal pollution, and bovine-associated Bacteroides (BoBac) as a marker of cattle faecal pollution. Human faecal pollution was detected in the agricultural, old suburban and industrial areas of the lakes. In contrast, bovine faecal pollution was detected only in the agricultural area of Lake Oconee. Measurements of chlorophyll-a and relative algal community abundance indicated the least-impacted and modern suburban areas had significantly lower numbers of primary producers, being dominated by diatoms.

Chandra Observations of High-energy X-Ray Sources Discovered by INTEGRAL

Abstract: The International Gamma-Ray Astrophysics Laboratory (INTEGRAL) satellite has detected in excess of 1000 sources in the ~20-100 keV band during its surveys of the sky over the past 17 years. We obtained 5 ks observations of 15 unclassified IGR sources with the Chandra X-ray Observatory in order to localize them, to identify optical/IR counterparts, to measure their soft X-ray spectra, and to classify them. For 10 of the IGR sources, we detect Chandra sources that are likely (or in some cases certain) to be the counterparts. IGR J18007-4146 and IGR J15038-6021 both have Gaia parallax distances, placing them at 2.5+0.5-0.4 and 1.1+1.5-0.4 kpc, respectively. We tentatively classify both of them as intermediate polar-type Cataclysmic Variables. Also, IGR J17508-3219 is likely to be a Galactic source, but it is unclear if it is a Dwarf Nova or another type of transient. For IGR J17118-3155, we provide a Chandra localization, but it is unclear if the source is Galactic or extragalactic. Based on either near-IR/IR colors or the presence of extended near-IR emission, we classify four sources as Active Galactic Nuclei (IGR J16181-5407, IGR J16246-4556, IGR J17096-2527, and IGR J19294+1327), and IGR J20310+3835 and IGR J15541-5613 are AGN candidates. In addition, we identified an AGN in the INTEGRAL error circle of IGR J16120-3543 that is a possible counterpart.