MARS

MARS is a repository service of Mason Publishing and the Digital Scholarship Center (DiSC) at the George Mason University Libraries. MARS provides enduring, stable, well-indexed access to a wide range of scholarship from the Mason community, such as Electronic Theses and Dissertations (ETDs), articles, presentations, reports, and creative work. Learn more about publishing, sharing, and preserving research data with the George Mason University Institutional Dataverse, and our other repository services.

To start publishing your content in MARS, please contact us by using our online form. Questions? Please email publish@gmu.edu.

 

Recent Submissions

Publication
A Comparative Evaluation of Kits for Seminal Fluid Detection
(2024-05) Sperling, Anaya; Knight, Kelly
Seminal fluid detection kits are commonly used within the forensic science field to determine whether an unknown sample contains semen. The ability to correctly identify seminal fluid in any criminal cases involving bodily fluids is of the utmost importance. The ABACard p30 kit is most commonly used in forensic DNA laboratories to detect semen. This study “A Comparative Evaluation of Kits for Seminal Fluid Detection” will compare the ABACard p30, RSID - Semen, and SERATEC Semiquant PSA kit to the Bluestar Identi-PSA kit which is newer to the field. Bluestar, ABA, and SERATEC kits test for the presence of prostate specific antigen (PSA) which is the protein present in semen. On the other hand, RSID - Semen detection kit tests for semenogelin which is the protein that is found in ejaculated semen and is responsible for sperm immobilization in the seminal coagulum. To evaluate the specificity of these kits, breastmilk, saliva, and blood will also be tested in duplicate. Labor intensity, cost, and sensitivity will also all be compared between the four kits. Sensitivity will be evaluated by testing a series of dilutions of semen in duplicate from 1:10 to 1:100,000. It is expected that all four kits will be equally effective (creating true positives) in detecting semen, however, there will be differences in labor intensity and cost. It is also anticipated that a potential false positive with the breastmilk will happen since previous research has reported the detection of prostate specific antigen or semenogelin in breastmilk. The result of a positive test from breastmilk would pose the question of whether said kit would be deemed to be as reliable as stated. It is expected to conclude that between the four kits: Bluestar Identi-PSA, ABACard p30, RSID - Semen and SERATEC Semiquant PSA, each will yield different results when it comes to specificity and sensitivity.
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The complete mitochondrial genome of Meller’s mongoose (Rhynchogale melleri)
(Taylor & Francis, 2024-03-14) Sosale, Medhini S.
Meller’s mongoose (Rhynchogale melleri) is a member of the family Herpestidae (Mammalia: Carnivora) and the sole species in the genus Rhynchogale. It is primarily found in savannas and open woodlands of eastern sub-Saharan Africa. Here, we report the first complete mitochondrial genome for a female Meller’s mongoose collected in Tanzania, generated using a genome-skimming approach. The mitogenome had a final length of 16,644 bp and a total of 37 annotated genes. Phylogenetic analysis validated the placement of this species in the herpestid subfamily Herpestinae. Ultimately, the outcomes of this research offer a genetic foundation for future studies of Meller’s mongoose.
Publication
Ground based light curve follow up confirmation of the planetary nature of TOI 3506.1
(George Mason University, 2023-10) Kanigicherla, Aarushi; Plavchan, Peter
The Transiting Exoplanet Survey Satellite (TESS) mission gathers data for thousands of candidate exoplanets and their host stars (Zhang et al., 2022). In this paper we present research on candidate exoplanet TOI 3506.01, which orbits host star TOI 3506.01. The goal of this paper is to provide a ground based follow up of the planetary nature of TOI 3506.01. We took 249 exposures with the GMU 0.8 m telescope and reduced them, then we conducted ground based multi aperture photometry using AstroImageJ to generate a light curve. In addition, we plotted residuals and the fluxes of our target stars and adjusted trends within the data. We confirmed the planetary nature of TOI 3506.01, due to the visible transit on the ground based light curve.
Publication
Ground based light curve follow up observations and false positive testing for TESS Object of Interest 3553.01
(George Mason University, 2023-10) Kanigicherla, Aarushi; Plavchan, Peter; Collins, Kevin
The Transiting Exoplanet Survey Satellite (TESS) mission gathers data for thousands of candidate exoplanets and their host stars (Zhang et al., 2022). In this paper we present research of TOI 3553, which is orbited by candidate exoplanet TOI 3553.01. The goal of this paper is to provide a ground based follow up of the planetary nature of TOI 3553.01. We also will confirm if TOI 3553 is a near eclipsing binary (NEB). We took 303 exposures with the GMU 0.8 m telescope and reduced them, then we conducted ground based multi aperture photometry using AstroImageJ to generate a light curve. Lastly, we conducted an NEB analysis on TOI 3553. We determined that TOI 3553.01 is not a near eclipsing binary. Due to the fact that the transit did not happen during the expected time, we did not confirm the planetary nature of TOI 3553.01.
Publication
Ground-based Light Curve Follow-up Validation Observations of TESS Object of Interest TOI 3792.01
(George Mason University, 2023-10) Ellis, Abigael; Plavchan, Peter
The goal of this study was to further confirm, characterize, and classify TESS Object of Interest (TOI) 3792.01. This was done by analyzing the stellar light curve of this object. We remotely obtained ground based data from the Observatory at George Mason University. The data was visualized using the software AstroImageJ. Although the data was skewed due to a fluctuating thin cloud cover and an 8 hour uncertainty period when observed by TESS, we found that by using less obscured reference stars and the WIDTH_T1 Detrending Parameter, we were able to find data clear enough to work with. However, this data still retained a scatter percentage (RMS) of 1.8%. While comparing the estimated light curve to the data collected, we found that the RMS dropped suddenly to 1.28% during an 8 hour period. However, this is obviously still imperfect. Therefore, the results for this study are inconclusive but suggestive. Though no direct conclusion can be reached at this time, more data should be collected to compare to the current data in order to confirm TOI 3792.01 as a transit.