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Articles 1 - 5 of 5
Full-Text Articles in Physical Sciences and Mathematics
Flickering Analysis Of Ch Cygni Using Kepler Data, Thomas Holden Dingus
Flickering Analysis Of Ch Cygni Using Kepler Data, Thomas Holden Dingus
Undergraduate Honors Theses
Utilizing data from the Kepler Mission, we analyze a flickering phenomenon in the symbiotic variable star CH Cygni. We perform a spline interpolation of an averaged lightcurve and subtract the spline to acquire residual data. This allows us to analyze the deviations that are not caused by the Red Giant’s semi-regular periodic variations. We then histogram the residuals and perform moment calculations for variance, skewness, and kurtosis for the purpose of determining the nature of the flickering. Our analysis has shown that we see a much smaller scale flickering than observed in the previous literature. Our flickering scale is on …
From Empty Lot To Garden Plot: Urban Agriculture In Chula Vista, Jennifer E. Gutierrez
From Empty Lot To Garden Plot: Urban Agriculture In Chula Vista, Jennifer E. Gutierrez
Undergraduate Honors Theses
This project is an exploration of how agriculture can be incorporated into the fabric of the city of Chula Vista, which has both uniquely urban and suburban areas. The proposal is to integrate agriculture as a design tool to reconnect to the city’s agricultural past and as a model for cities of the future. First, I discuss Chula Vista’s history and contemporary context, including demographics. I review the existing urban agriculture policies Chula Vista has and compare them to other cities in California. The second part of the project is concerned with how to choose and develop a site for …
A Physiologically-Based Pharmacokinetic Model For The Antibiotic Levofloxacin, Paezha M. Mccartt
A Physiologically-Based Pharmacokinetic Model For The Antibiotic Levofloxacin, Paezha M. Mccartt
Undergraduate Honors Theses
Levofloxacin is in a class of antibiotics known as fluoroquinolones, which treat infections by killing the bacteria that cause them. A physiologically-based pharmacokinetic (PBPK) model was developed to investigate the uptake, distribution, and elimination of Levofloxacin after a single dose. PBPK modeling uses parameters such as body weight, blood flow rates, partition coefficients, organ volumes, and several other parameters in order to model the distribution of a particular drug throughout the body. Levofloxacin is only moderately bound in human blood plasma, and, thus, for the purposes of this paper, linear bonding is incorporated into the model because the free or …
Star Formation In Ring Galaxies, Susan C. Olmsted
Star Formation In Ring Galaxies, Susan C. Olmsted
Undergraduate Honors Theses
Ring galaxies are specific types of interacting galaxies in which a smaller galaxy has passed through the center of the disk of another larger galaxy. The intrusion of the smaller galaxy causes the structure of the larger galaxy to compress as the smaller galaxy falls through, and to recoil back after the smaller galaxy passes through, hence the ring-like shape. In our research, we studied the star-forming regions of a sample of ring galaxies and compared to those of other interacting galaxies and normal galaxies. Using UV, optical, and IR archived images in twelve wavelengths from three telescopes, we analyzed …
Extracting (1,3/1,6)-Β-Glucans From Saccharomyces Cerevisiae: A Fungal Immunotherapeutic, James C. Elliott
Extracting (1,3/1,6)-Β-Glucans From Saccharomyces Cerevisiae: A Fungal Immunotherapeutic, James C. Elliott
Undergraduate Honors Theses
The goal of this research was the development of a method to extract pure (1,3/1,6)-β-glucans from Saccharomyces cerevisiae. These β-glucans are of pharmaceutical importance because an animal’s immune system can recognize glucan molecules, and these molecules can act as immunomodulators, essentially turning on the immune system. The problem in the past has been that previously published methods produce β-glucans with low side chain lengths and few branching occurrences. This issue was tackled by a multivariable approach that reduced extraction steps, initial sample size, and concentrations of reagents used. This method has been shown to produce greater yields of β-glucans while …