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Full-Text Articles in Physical Sciences and Mathematics
Enhancing Student Learning Of Global Warming Through Reflective Writing, Liang Zeng, Guang Zeng
Enhancing Student Learning Of Global Warming Through Reflective Writing, Liang Zeng, Guang Zeng
Physics and Astronomy Faculty Publications and Presentations
The National Academy of Science has published studies showing strong scientific evidence that global warming is caused by human consumption of fossil fuels, yet recent surveys have shown young adults in the U.S. are disengaged or disagree with this fact. Accordingly, the United Nations Educational, Scientific, and Cultural Organization (UNESCO) published learning objectives to educate the world population on global warming and renewable energy by 2030. In this paper, we introduce a reflective writing activity physics educators can employ to foster a deeper understanding of global warming in introductory college physics and physical science courses, without overloading their teaching time.
Effects Of Seasonal Variations And Heat Exposure On Antioxidant Expression And Redox Status In The American Oyster, Crassostrea Virginica: Field And Laboratory Studies, Md Sadequr Rahman
Effects Of Seasonal Variations And Heat Exposure On Antioxidant Expression And Redox Status In The American Oyster, Crassostrea Virginica: Field And Laboratory Studies, Md Sadequr Rahman
Theses and Dissertations
Increasing atmospheric temperatures influence physiological functions in aquatic organisms. In this study, I observed the effects of seasonal (field study) and laboratory heat exposure (16, 22, 26, and 30°C for 1-week) on prooxidant-antioxidant homeostasis in gills and digestive glands of American oyster. Histological analysis showed an increase in mucus secretion with elevated temperatures in both organs. Immunohistochemical analysis showed a significant increase of heat shock protein-70, dinitrophenyl, and 3-nitrotyrosine protein expressions with higher seasonal and laboratory temperatures indicating heat-induced oxidative and nitrosative stress. This was concomitant with gradual rise in cellular apoptosis. Interestingly, catalase and superoxide dismutase expressions also increased …
Effects Of Global Warming On Gonadal Functions, Cellular Apoptosis, And Oxidative Stress In The American Oyster, Sarah B. Nash
Effects Of Global Warming On Gonadal Functions, Cellular Apoptosis, And Oxidative Stress In The American Oyster, Sarah B. Nash
Theses and Dissertations
Global warming due to climate change is predicted to intensify the heat stress in marine and coastal organisms, affecting their development, growth and reproductive functions. In this study. I analyzed gonadal development, heat shock protein 70 (HSP70), nitrotyrosine protein (NTP), dinitrophenyl (DNP) expressions, cellular apoptosis, and coelomic fluid (CF) conditions in American oyster. Oysters were placed in six aquariums and exposed to control (24°C), medium (28°C), and high (32°C) temperatures for one week. Higher temperature significantly decreased the number of eggs and sperm. CF protein concentrations also declined compared to control. In contrast, CF pH and HSP70 expression in gonad …