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Mercury Methylation Potentials In Sediments Of An Ancient Cypress Wetland Using Species-Specific Isotope Dilution Gc-Icp-Ms, Derek D. Bussan, Chris Douvris, James V. Cizdziel
Mercury Methylation Potentials In Sediments Of An Ancient Cypress Wetland Using Species-Specific Isotope Dilution Gc-Icp-Ms, Derek D. Bussan, Chris Douvris, James V. Cizdziel
Faculty and Student Publications
Wetlands are of a considerable environmental value as they provide food and habitat for plants and animals. Several important chemical transformations take place in wetland media, including the conversion of inorganic mercury (Hg) to monomethylmercury (MeHg), a toxic compound with a strong tendency for bioconcentration. Considering the fact that wetlands are hotspots for Hg methylation, we investigated, for the first time, Hg methylation and demethylation rates in an old growth cypress wetland at Sky Lake in the Mississippi Delta. The Sky Lake ecosystem undergoes large-scale water level fluctuations causing alternating periods of oxic and anoxic conditions in the sediment. These …
Index, Journal Editors
Index, Journal Editors
Proceedings of the annual meeting of the Southern Anthropological Society
No abstract provided.
Art As Distraction: Rocking The Farm, Daniel W. Ingersoll, Kathleen Butler Ingersoll
Art As Distraction: Rocking The Farm, Daniel W. Ingersoll, Kathleen Butler Ingersoll
Proceedings of the annual meeting of the Southern Anthropological Society
Monumental architecture, massive statuary, and other art forms fascinate Westerners and tend to inspire positive judgments about past cultural virtuosity and sophistication. Like the pyramids of Egypt or the stone masonry of Machu Picchu, the moai (the statues) and ahu (stone platforms supporting moai) of Rapa Nui (a.k.a. Easter Island) have impressed, mystified, and preoccupied the Western cultural imagination since their encounter by Europeans. Explorers, archaeologists, anthropologists, and tourists are drawn to the monumental like moths to light—which is understandable—but that light also blinds. Here a case is made that for Rapa Nui the obsession for the monumental has led …
Spectroscopic Investigations Of Newly Developed Materials For Light Harvesting, Energy Conversion, And Bioimaging, Austin L. Dorris
Spectroscopic Investigations Of Newly Developed Materials For Light Harvesting, Energy Conversion, And Bioimaging, Austin L. Dorris
Electronic Theses and Dissertations
A multitude of spectroscopic techniques were employed in the making of this dissertation to investigate materials with environmental, commercial, optoelectronic, bioimaging, and solar energy conversion applications. Graphene-like materials like biochar represent a field of study in which bioavailable materials are deployed for CO2 and heavy-metal adsorption to combat the detrimental effects of industry on the environment. Vibrational characterization of these materials via Raman spectroscopy is integral in elucidating the structure-function relationship and determining the best approach for material preparation and functionalization. Carbonaceous systems such as cellulose are also studied via Raman spectroscopy to interrogate the viability of cellulose nanocrystals as …