Georgia State University

About: Georgia State University is a education organization based out in Atlanta, Georgia, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 13988 authors who have published 35895 publications receiving 1164332 citations. The organization is also known as: GSU & Georgia State.

Trajectories of emotional well-being in mothers of adolescents and adults with autism.

Abstract: Raising an adolescent or adult child with a developmental disability confers exceptional caregiving challenges on parents. We examined trajectories of 2 indicators of emotional well-being (depressive symptoms and anxiety) in a sample of primarily Caucasian mothers (N 379; Mage 51.22 years at Time 1) of adolescent and adult children with an autism spectrum disorder (ASD; Mage 21.91 years at Time 1, 73.2% male). We also investigated within-person associations of child context time-varying covariates (autism symptoms, behavior problems, residential status) and maternal context time-varying covariates (social support network size and stressful family events) with the trajectories of emotional well-being. Data were collected on 5 occasions across a 10-year period. Average patterns of stable (depressive symptoms) and improved (anxiety) emotional well-being were evident, and well-being trajectories were sensitive to fluctuations in both child and maternal context variables. On occasions when behavior problems were higher, depressive symptoms and anxiety were higher. On occasions after which the grown child moved out of the family home, anxiety was lower. Anxiety was higher on occasions when social support networks were smaller and when more stressful life events were experienced. These results have implications for midlife and aging families of children with an ASD and those who provide services to these families.

Partner violence, social support, and distress among inner-city African American women.

Abstract: This study examined the role of social support in the partner violence–psychological distress relation in a sample of African American women seeking medical care at a large, urban hospital (n = 138). Results from bivariate correlational analyses revealed that partner violence was related to lower perceived social support and greater psychological distress, and lower social support was related to more distress. Furthermore, findings based on path analysis indicated that low levels of social support helped account for battered women's increased distress. Findings point to the need for service providers to screen for partner violence in nontraditional sites, such as hospital emergency rooms, and to address the role of social support resources in preventive interventions with African American battered women.

Summation in the chimpanzee (Pan troglodytes).

Abstract: In this research, we asked whether 2 chimpanzee (Pan troglodytes) subjects could reliably sum across pairs of quantities to select the greater total. Subjects were allowed to choose between two trays of chocolates. Each tray contained two food wells. To select the tray containing the greater number of chocolates, it was necessary to sum the contents of the food wells on each tray. In experiments where food wells contained from zero to four chocolates, the chimpanzees chose the greater value of the summed wells on more than 90% of the trials. In the final experiment, the maximum number of chocolates assigned to a food well was increased to five. Choice of the tray containing the greater sum still remained above 90%. In all experiments, subjects reliably chose the greater sum, even though on many trials a food well on the "incorrect" tray held more chocolates than either single well on the "correct" tray. It was concluded that without any known ability to count, these chimpanzees used some process of summation to combine spatially separated quantities. Speculation regarding the basis for summation includes consideration of perceptual fusion of pairs of quantities and subitization.

Characteristics of a tunneling quantum-dot infrared photodetector operating at room temperature

Abstract: We report high-temperature (240–300K) operation of a tunneling quantum-dot infrared photodetector. The device displays two-color characteristics with photoresponse peaks at ∼6μm and 17μm. The extremely low dark current density of 1.55A∕cm2 at 300K for 1V bias is made possible by the tunnel filter. For the 17μm absorption, the measured peak responsivity is 0.16A∕W (300K) for a bias of 2V and the specific detectivity D* is 1.5×107cmHz1∕2∕W (280K) for a bias of 1V. Excellent performance characteristics are also measured for the 6μm photoresponse.

Integrating the general theory of crime into an explanation of violent victimization among female offenders

Abstract: In 1999, Schreck extended Gottfredson and Hirschi's (1990) self-control theory to explain victimization and the victim-offender overlap. His analysis of college students revealed that low self-control was significantly associated with victimization. We build on Shreck's work by assessing whether low self-control contributes to victimization among a sample of female offenders while controlling for routine activities/lifestyle behaviors. We advanced two research questions: (1) Can self-control theory account for variations in victimization? (2) Do risky lifestyle behaviors mediate the effects of self-control? The results were consistent with the hypothesis that low self-control is a risk factor for victimization, even after lifestyle behaviors were controlled.