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Photonic Probing Of Structural Deformation Of Brain Tissues Due To Stress And Alcohol, Shiva Bhandari
Photonic Probing Of Structural Deformation Of Brain Tissues Due To Stress And Alcohol, Shiva Bhandari
Electronic Theses and Dissertations
Mesoscopic optical physics based Partial Wave Spectroscopy(PWS) and Inverse Participation Ratio(IPR) techniques are sensitive to nanoscale and submicron-scale changes respectively occurring in the biological cells. These changes occur due to several factors; stress and fetal alcoholism are deemed to be the major ones. The effects of chronic stress in adult brain cells and fetal alcoholism on the brain cells of fetus are studied using the respective animal models. PWS studies the effect of stress in brain tissues by measuring the optical backscattering spectra and quantifying the statistical properties of the nano-architecture of the tissues by the analysis of the fluctuating …
Identifying Pathways To Smoking And Alcohol Consumption After A Natural Disaster: Findings From Hurricane Katrina, Adam Alexander
Identifying Pathways To Smoking And Alcohol Consumption After A Natural Disaster: Findings From Hurricane Katrina, Adam Alexander
Electronic Theses and Dissertations
Survivors of disasters often experience severe psychological symptoms and disorders, including depression, anxiety, post-traumatic stress disorder (PTSD), and report using psychoactive substances, such as alcohol, marijuana, and cigarettes. This dissertation examined whether depression severity and PTSD were pathways to postdisaster smoking and alcohol consumption using a representative cohort of adult cigarette smokers from Memphis, Tennessee and New Orleans, Louisiana nine and eighteen months after Hurricane Katrina (N=2004). Results from path analyses showed that disaster exposure increased depression and posttraumatic stress nine months after Hurricane Katrina, and the effect persisted across time for depression. Disaster exposure also increased the risk for …