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Full-Text Articles in Life Sciences
Effects Of Estrogens On Astrocytes Exposed To Stressors, Bridget N. Smith
Effects Of Estrogens On Astrocytes Exposed To Stressors, Bridget N. Smith
Theses and Dissertations
Hormone replacement therapy (HRT), used by many women to alleviate menopausal symptoms such as hot flashes and mood swings, is often a combination ofhormones such as estrogens, progesterone, and conjugated equine estrogens (CEE), extracted from the urine of pregnant mares. Previous studies have found positive correlations between estradiol and cellular protection, but recent research has concluded CEE provide less protective mechanisms as compared to endogenous hormones. This research sought to compare the effects of estrogen treatments (single and combined estrogen) on viability when astrocytes were induced with stressors (epinephrine, cortisol, and low oxygen concentration). Cultured human astrocytes were treated with …
Effects Of Grazers And Elevated Temperature On The Dynamics Of A Wastewater Algal Treatment System, Mengyuan Li
Effects Of Grazers And Elevated Temperature On The Dynamics Of A Wastewater Algal Treatment System, Mengyuan Li
Theses and Dissertations
Wastewater algal treatment systems (ATS) have been shown to effectively remove excessive nutrients from wastewater and prevent eutrophication. However, the performance of ATS could be strongly affected by environmental factors. This study examined (1) the effect of grazers on nutrient removal rates and (2) the effect of 1.7 °C increase in temperature on algal biomass. The effect of grazers was assessed outdoors by analyzing dissolved and tissue nutrient concentrations in ATS with and without biological pesticide in two 20-day trials. The effect of elevated temperature was evaluated indoors by comparing algal biomass between heated and non-heated ATS for 20 days. …