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Articles 1 - 8 of 8
Full-Text Articles in Physical Sciences and Mathematics
Investigation Of Zinc And Iron In Wildflower Honey, Savannah Simpson
Investigation Of Zinc And Iron In Wildflower Honey, Savannah Simpson
Honors Theses
Honey acts as a valuable food source for both animals and humans. When found in contaminated environments, there is an increased likelihood that honey samples will have high metal concentrations. It has been discovered that honey concentrations in metals can be different based on location. This experiment aims to determine the amount of two valuable metals, zinc, and iron, in various honey sources. These metals can be important to the human body because they help boost immunity and allow the body to carry out the functions required for survival. However, if these elements are present in copious quantities, then it …
Initial Investigation Of Wildflower Honey Using Headspace Solid-Phase Microextraction Coupled With Gas Chromatography-Mass Spectrometry For Geographical Information, Tyra Countiss
Honors Theses
Honey has been used as a food, sugar substitute, and flavor enhancer forever. The uses for honey are extremely varied from food to medicine. It is widely touted that you can address seasonal allergies, especially those following a move, by eating local honey. For this to be true the composition of the local honey, including trapped pollen, would allow allergy symptoms to be eliminated. In this project, the volatile and semi-volatile aroma compounds in wild flower honey from several different locations were analyzed. Headspace solid phase microextraction (HS-SPME) coupled with gas chromatography-mass spectrometry (GC-MS) was used to help develop the …
Isolated Point Discharges Into Coastal Swashes As Nutrient Sources To Coastal Waters, Mary E. Olsen
Isolated Point Discharges Into Coastal Swashes As Nutrient Sources To Coastal Waters, Mary E. Olsen
Honors Theses
Coastal water quality in the Grand Strand of South Carolina is directly influenced by human activities. Nutrient-rich runoff, stemming from numerous anthropogenic sources, finds its way into coastal waters through freshwater inputs often through tidal creeks, termed swashes. In order to better describe the amount of nutrient inputs into Singleton Swash and White Point Swash, we examine anthropogenic runoff from isolated identifiable point discharges and their nutrient concentrations. We report concentrations of dissolved inorganic nitrogen (DIN, as the sum of nitrate, nitrite and ammonium) and phosphate in discharge and creek water. We hypothesize that nutrient concentrations of isolated, minor point …
Glucose Oxidase And Prussian Blue Nanoparticles Encapsulated Within A Xerogel For Electrochemical Detection Of Glucose, Daniel Baker
Glucose Oxidase And Prussian Blue Nanoparticles Encapsulated Within A Xerogel For Electrochemical Detection Of Glucose, Daniel Baker
Honors Theses
Recent literature reports examples of electrochemical biosensor systems based on the encapsulation of enzymes and metal nanoparticles into a xerogel for the detection of biologically important compounds, such as glucose. While these systems are very successful with acceptable detection limits and linear ranges. However, Prussian Blue modified electrodes have been shown to be better than metal electrodes for the detection of hydrogen peroxide. Here, a biosensor system where a xerogel in formed with both glucose oxidase and Prussian Blue nanoparticles.
The Clean Air Act And Its Impact On Ground Level Ozone Pollution Levels In Los Angeles, California, Rebecca G. Ford
The Clean Air Act And Its Impact On Ground Level Ozone Pollution Levels In Los Angeles, California, Rebecca G. Ford
Honors Theses
Ozone (O3) occurs naturally as a protective, ultraviolet radiation-shielding “Ozone Layer” in the Stratosphere and as a photochemically produced pollutant in the Troposphere. The Clean Air Act (CAA) of 1970 regulates the emission and concentration of O3 and five other atmospheric pollutants. Since the signing of the CAA, the ongoing question has been whether or not the National Ambient Air Quality Standards (NAAQS) and regulatory policies have had an effect on decreasing O3 concentration. The Los Angeles metropolitan area is a prime example of how O3 can be a public health hazard, and taint a …
Abuse Of Spice, Bath Salts, And Steroids, Rebecca Coburn
Abuse Of Spice, Bath Salts, And Steroids, Rebecca Coburn
Honors Theses
The abuse of three different drugs and whether or not they should continue to be banned in the United States is looked at. These three drugs are spice, bath salts, and steroids. In conclusion, spice and bath salts should continue to be banned in the United States due to the little knowledge known on the drugs and how they affect the body. Steroids on the other hand should only be banned in the use of sports, due to the unfair advantage that it gives users. For individuals not in sports, steroids should be legal since it is their choice to …
Catalytic Decomposition Of Peroxynitrite And Superoxide By Nafion Films Modified With Iron And Manganese Porphyrin, Amanda Stull, Victor Sarpong
Catalytic Decomposition Of Peroxynitrite And Superoxide By Nafion Films Modified With Iron And Manganese Porphyrin, Amanda Stull, Victor Sarpong
Honors Theses
Nafion films alone and modified with inert electrolytes and metalloporphyrins were tested in their effectiveness of decomposition of aqueous peroxynitrite (PN) and superoxide. Films that were modified with a cationic manganese porphyrin, which has been shown to be responsible for catalytic decomposition of superoxide ion, were found to be most effective. Peroxynitrite was generated in solution by the decomposition of 3-morpholinosydnonimime (SIN-1) that generates nitric oxide and superoxide ion, which rapidly combine to form peroxynitrite. The tyrosine analogue 4-hydroxyphenylacetic (4-HPA) was used to trap the PN in pH 7.00 PBS buffer and was its nitrated product was detected by observing …
Uv Irradiation On Bacteriophage Survival, Sherri Tomlinson
Uv Irradiation On Bacteriophage Survival, Sherri Tomlinson
Honors Theses
Bacteriophage is of great interest because of its potential role in controlling bacterial populations in our environment. UV exposure has a damaging effect on the virus decreasing lytic ability. This study set out to test the effects of UV radiation, in amounts comparable to local environmental conditions, on bacteriophage T2. The virus was placed in a Petri dish in a PBS medium and exposed to UV radiation at 365nm. The irradiated virus was allowed to infect E. coli and plated. The plaques formed were counted to determine lytic activity of the virus with respect to UV irradiation. The results showed …