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Articles 1 - 30 of 165
Full-Text Articles in Physical Sciences and Mathematics
Table Of Contents
Journal of the South Carolina Academy of Science
No abstract provided.
Technology Development And Materials Research To Enable A Sustainable D-T Fusion Energy Fuel Cycle, Brenda L. Garcia-Diaz, David Babineau, James Klein, Robert Allgood, George Larsen, Holly B. Flynn, Dale Hitchcock, Tim Krentz, Chris Dandeneau, Lucas Angelette, Robert Sindelar
Technology Development And Materials Research To Enable A Sustainable D-T Fusion Energy Fuel Cycle, Brenda L. Garcia-Diaz, David Babineau, James Klein, Robert Allgood, George Larsen, Holly B. Flynn, Dale Hitchcock, Tim Krentz, Chris Dandeneau, Lucas Angelette, Robert Sindelar
Journal of the South Carolina Academy of Science
No abstract provided.
A New Improvement Of A Fibonacci Inequality, Quang Hung Tran
A New Improvement Of A Fibonacci Inequality, Quang Hung Tran
Journal of the South Carolina Academy of Science
This paper provides an improvement to an inequality involving the Fibonacci sequence contained in [1,2].
The Effect Of Exposure To Lentinula Edodes And Flammulina Velutipes On The Biodegradation Of Crystallized Polylactic Acid, Iraine Taine
The Effect Of Exposure To Lentinula Edodes And Flammulina Velutipes On The Biodegradation Of Crystallized Polylactic Acid, Iraine Taine
Journal of the South Carolina Academy of Science
Crystallized polylactic acid (CPLA) is a prevalent bioplastic which, despite being biodegradable, is extremely resistant to decomposition in natural environments. As a result, CPLA waste contamination is rapidly becoming a prevalent issue. Lentinula edodes and Flammulina velutipes are two widespread white-rot fungi whose capabilities for bioplastic degradation have not been examined. This study aimed to determine a natural approach for reducing plastic waste by evaluating the ability of L. edodes and F. velutipes to degrade CPLA bioplastic. It was hypothesized that CPLA samples would decrease in mass when individually treated with L. edodes and F. velutipes due to their similarities …
Table Of Contents
Journal of the South Carolina Academy of Science
No abstract provided.
Rapid Cryogenic Electrical Characterization Of Materials And Devices Using Gifford-Mcmahon Cryocoolers, Margaret Marte, Bernardo Langa Jr., Patrick Johnson, Deepak Sapkota, Kathryn Evancho, Bernadeta Srijanto, Dale Hensley, Kasra Sardashti
Rapid Cryogenic Electrical Characterization Of Materials And Devices Using Gifford-Mcmahon Cryocoolers, Margaret Marte, Bernardo Langa Jr., Patrick Johnson, Deepak Sapkota, Kathryn Evancho, Bernadeta Srijanto, Dale Hensley, Kasra Sardashti
Journal of the South Carolina Academy of Science
Thin-film heterostructures are necessary building blocks for superconducting and phononic quantum computing devices. Many new generations of quantum hardware demand extensive materials research to optimize performances at cryogenic temperatures (below 10 K). Here, we demonstrate compact cryogenic measurement systems capable of reaching sub-10K temperatures in less than three hours with the ability to measure AC/DC resistance and dielectric properties of thin-film materials. Our platform utilizes Gifford-McMahon (GM) cryocoolers as effective tools for providing high throughput cooling-warming cycles. We successfully used the GM-based measurement systems to measure 1) the superconducting transition temperature for Nb thin films (Tc ~7.8 K), and 2) …
Generalizing Random Fibonacci Sequences, Prashant Sansgiry, Ogul Duncan, David Duncan, Alexander Foster
Generalizing Random Fibonacci Sequences, Prashant Sansgiry, Ogul Duncan, David Duncan, Alexander Foster
Journal of the South Carolina Academy of Science
We consider generalized Fibonacci sequences with recurrence
relation xn+p+1 = xn+p + xn, which have growth rates of the form
limn→∞ |xn|1/n that behave similarly to the golden ratio, (1 + √5)/2.
Following Makover and McGowan’s analysis of the random Fibonacci se-
quence, we find bounds for the value of E(|xn|)1/n for random sequences
given by xn+p+1 = ±xn+p + xn. Finally, we further generalize these ran-
dom sequences using two parameters, p and q, and we experimentally
observe how limn→∞ |xn|1/n contains surprising information about the
divisors of q + 1
Table Of Contents
Journal of the South Carolina Academy of Science
No abstract provided.
An Analysis Of The Sequence Xn+2 = I M Xn+1 + Xn, David Duncan, Prashant Sansgiry, Ogul Arslan, Jensen Meade
An Analysis Of The Sequence Xn+2 = I M Xn+1 + Xn, David Duncan, Prashant Sansgiry, Ogul Arslan, Jensen Meade
Journal of the South Carolina Academy of Science
We analyze the sequence Xn+2 = imXn+1 + Xn, with X1 = X2 = 1 + i, where i is the imaginary number and m is a real number. Plotting the sequence in the complex plane for different values of m, we see interesting figures from the conic sections. For values of m in the interval (−2, 2) we show that the figures generated are ellipses. We also provide analysis which prove that for certain values of m, the sequence generated is periodic with even period.
Table Of Contents
Journal of the South Carolina Academy of Science
No abstract provided.
Reducing Tracheal Complications In Endotracheal Intubation Patients Using Automated Cuff Pressure Modulation, Shrihan G. Babu
Reducing Tracheal Complications In Endotracheal Intubation Patients Using Automated Cuff Pressure Modulation, Shrihan G. Babu
Journal of the South Carolina Academy of Science
Endotracheal tube intubation is the third most frequent procedure, performed approximately 13-20 million times yearly in the United States (Mosier et al., 2020). Despite the regularity of the procedure, intubation-related complications such as tracheal injuries, laryngeal injuries, and ventilator-associated pneumonia are ubiquitous due to improper cuff pressure management methods (Ganti et al., 2018). Current techniques, such as the pilot balloon and minimal leak technique, have proven ineffective and inconsistent in managing pressure. As a result, over 71.6% of intubation patients have abnormally high cuff pressures (Ramírez, 2014). Therefore, the purpose of this research was to design an endotracheal tube with …
The Effects Of Salinity And Acetaminophen On The Aquatic Snail Physa Acuta, Michelle Sackey-Ansah, Megan Mackey, Daniel Elias, Jason Doll, Alyssa Brookhart
The Effects Of Salinity And Acetaminophen On The Aquatic Snail Physa Acuta, Michelle Sackey-Ansah, Megan Mackey, Daniel Elias, Jason Doll, Alyssa Brookhart
Journal of the South Carolina Academy of Science
Pharmaceuticals are increasingly detected in water bodies, and their presence can negatively impact aquatic organisms. This effect can be amplified when combined with increasing salinity in freshwater ecosystems. Acetaminophen is a widely used analgesic that is commonly found in river, streams, and waters where it is discharged directly. Therefore, organisms present in these locations (e.g., insects, snails, amphibians, and fish) are likely to be affected by acetaminophen. In this study, we determined the effects of elevated salinity (0.68 g/L), acetaminophen (500 µg/L) and combined elevated salinity (0.68 g/L) and acetaminophen (500 µg/L), on the growth, reproduction, and movement of the …
The Boozi Device’S Effect On Aroma Compounds In Distilled Spirits, Drew Budner, Lindsey Bell, Katherine Thompson-Witrick
The Boozi Device’S Effect On Aroma Compounds In Distilled Spirits, Drew Budner, Lindsey Bell, Katherine Thompson-Witrick
Journal of the South Carolina Academy of Science
The BooZi is a commercially available flavor-modifying device that claims to remove the negative flavor agents (congeners) from a number of different types of distilled spirits and wines. SPME was utilized for the extraction of the volatile and semi-volatile compounds within each sample. The analysis of the compounds found in the samples following exposure to the BooZi device were analyzed using a GC-MS. The most significant changes regarding the aroma profile of the distilled spirits were noticeable following 96 hours of exposure. The BooZi device was shown to be effective in reducing the concentration of a number of compounds, including …
Microplastics And Tire Wear Particles In South Carolina Coastal Waters: Sources, Pathways, And Toxicity, John E. Weinstein
Microplastics And Tire Wear Particles In South Carolina Coastal Waters: Sources, Pathways, And Toxicity, John E. Weinstein
Journal of the South Carolina Academy of Science
No abstract provided.
Influence Of Surface Water Displacement On Solvation Thermodynamics, Mia Kim
Influence Of Surface Water Displacement On Solvation Thermodynamics, Mia Kim
Journal of the South Carolina Academy of Science
No abstract provided.
The Effects Of Human Behavioral Changes Due To The Covid-19 Pandemic On The Reservoir Of Lytic Escherichia Coli And Staphylococcus Aureus Bacteriophage On Humans At A South Carolina University, Korinne M. Swanson, Owen R. Smith, Paul E. Richardson
The Effects Of Human Behavioral Changes Due To The Covid-19 Pandemic On The Reservoir Of Lytic Escherichia Coli And Staphylococcus Aureus Bacteriophage On Humans At A South Carolina University, Korinne M. Swanson, Owen R. Smith, Paul E. Richardson
Journal of the South Carolina Academy of Science
Bacteriophages are viruses, whose unique ability to infect and lyse bacterial cells may provide valuable insight for evading the repercussions of a post-antibiotic era in medicine. This study isolated and characterized Escherichia coli and Staphylococcus aureus bacteriophage on students and faculty at Coastal Carolina University as a means to understand the viability of human bacteriophage reservoirs for bacteriophage therapy. From September 2021 to March 2022, nasal and postauricular swab samples and a behavioral survey were collected from ninety-three randomly selected participants. Additionally, sixteen participants contributed nasal and postauricular swab samples and a behavioral survey on a monthly basis in a …
Table Of Contents
Journal of the South Carolina Academy of Science
No abstract provided.
Environmental Bacteriophage Detection On Coastal Carolina University Campus, Madison Gentilo, Hailey Oldfield, Gavin Ockert, Paul E. Richardson
Environmental Bacteriophage Detection On Coastal Carolina University Campus, Madison Gentilo, Hailey Oldfield, Gavin Ockert, Paul E. Richardson
Journal of the South Carolina Academy of Science
Bacteriophages are viruses that infect bacteria. These viruses are found ubiquitously in the environment and are more abundant than any living organism on Earth, including bacteria. Eleven sites are designated for weekly sample collection on the campus of Coastal Carolina University. Water samples are filtered and amplified using strains of E. coli B and E. coli K12 to allow potential coliphages in the sample to proliferate to detectable levels. Plaque assays are used as a microbial screen for the presence of bacteriophage. Samples that test positively using the microbial test are analyzed through a molecular test using PCR to identify …
2022 Scas Annual Meeting Program And Bulletin
2022 Scas Annual Meeting Program And Bulletin
Journal of the South Carolina Academy of Science
No abstract provided.
3,6-Dimethoxyxanthone From 2,2’,4,4’- Tetrahydroxy-Benzophenone Via Microwave-Assisted Annulation, Sarah E. Knisely, Faith R. Rosario, Salem F. Gebeyehu, Paige E. Heiple, Robert E. Lee Sr
3,6-Dimethoxyxanthone From 2,2’,4,4’- Tetrahydroxy-Benzophenone Via Microwave-Assisted Annulation, Sarah E. Knisely, Faith R. Rosario, Salem F. Gebeyehu, Paige E. Heiple, Robert E. Lee Sr
Journal of the South Carolina Academy of Science
Xanthones are tricyclic aromatic compounds that have multiple pharmacological uses due to their anti-tumor, antioxidant, anti-inflammatory, anti-bacterial, and potentially chemopreventive properties. The target of this research was to optimize a two-step synthesis of 3,6-dimethoxyxanthone (3) from 2,2’,4,4’-tetrahydroxy-benzophenone (1) via microwave-assisted (200 °C, 30-40 min., 150 W) sodium acetate-catalyzed annulation. The product, 3,6-dihydroxyxanthone (2), was then methylated to (3) using dimethyl sulfate (DMS) and sodium carbonate in acetone at reflux. The product yields were 93% (>99% purity) for (2) and 94% (>99% purity) for (3). Characterization was accomplished using 1H NMR, FTIR, melting point, TLC, HPLC, and GCMS. …
Nuclear Fuel Cycle: Safe Management Of Spent Nuclear Fuel, Robert L. Sindelar
Nuclear Fuel Cycle: Safe Management Of Spent Nuclear Fuel, Robert L. Sindelar
Journal of the South Carolina Academy of Science
The aim for storage of spent nuclear fuel (SNF) either in wet or in dry storage systems is to ensure general safety objectives are met throughout a desired storage period. Staff at the Savannah River National Laboratory (SRNL), in collaborations with partners at other national laboratories, industry research organizations, and the University of South Carolina (UofSC), have performed materials aging testing and analyses, and have established nuclear materials aging management programs to support extended periods of safe storage of research reactor (RR) SNF and of commercial power reactor (PR) SNF pending ultimate disposal. Several example challenges include susceptibility of aluminum …
Table Of Contents
Journal of the South Carolina Academy of Science
No abstract provided.
Women In Stem Fellowship: An Intersectional And Interdisciplinary Approach To Advancing Inclusion In The Sciences, Ina C. Seethaler, Gabriela Perez-Alvarado
Women In Stem Fellowship: An Intersectional And Interdisciplinary Approach To Advancing Inclusion In The Sciences, Ina C. Seethaler, Gabriela Perez-Alvarado
Journal of the South Carolina Academy of Science
At our university, women-identified individuals make up 23% of students in STEM fields; less than 15% of them graduate with a STEM degree. Nationally, more than 40% of women who enter a STEM job leave it within fewer than ten years. Gendered issues within STEM industries have been identified, yet we are far from equal opportunities for all genders. In 2018, we—the director of Women’s and Gender Studies (WGS) with colleagues in Math, Computing Sciences, and Chemistry—received a $45,000 grant to create a “Women in STEM Fellowship.” The inclusion of WGS made the fellowship interdisciplinary, intersectional, and informed our decision-making …
Teaching The “Wicked” In Geography: Educational Structure, Standards, And Teacher Training As Obstacles To Teaching About Climate Change, Jerry T. Mitchell
Teaching The “Wicked” In Geography: Educational Structure, Standards, And Teacher Training As Obstacles To Teaching About Climate Change, Jerry T. Mitchell
Journal of the South Carolina Academy of Science
No abstract provided.
Virtual Experiments In Astrophysics, Chris Fragile
Virtual Experiments In Astrophysics, Chris Fragile
Journal of the South Carolina Academy of Science
No abstract provided.
Intramolecular Friedel-Crafts Addition Of Indoles To Tertiary Allylic Alcohols, Bryan H. Wakefield, Romie Barnes, Traeannah Brown, Ashley M. Jones, Victoria A. Knotts, Christina Martinetti
Intramolecular Friedel-Crafts Addition Of Indoles To Tertiary Allylic Alcohols, Bryan H. Wakefield, Romie Barnes, Traeannah Brown, Ashley M. Jones, Victoria A. Knotts, Christina Martinetti
Journal of the South Carolina Academy of Science
An intermolecular Friedel-Crafts alkylation of indole and tertiary allylic alcohols has been developed. The allylic alcohols were synthesized using a two-step procedure, then exposure of these alcohols to diphenyl phosphate facilitated the desired annulation reaction. This reaction tolerated a variety of indole substitutions to yield 1H,2H,3H,4H-pyrido[1,2-a]indoles.
The Effect Of Noise-Reducing Acoustic Panels On The Noise Levels And Overall Safety Of Infant Sleep Machines, Pranav Poola
The Effect Of Noise-Reducing Acoustic Panels On The Noise Levels And Overall Safety Of Infant Sleep Machines, Pranav Poola
Journal of the South Carolina Academy of Science
Infant sleep machines (ISMs) are devices used to help infants fall asleep faster and stay asleep for longer amounts of time, yet they can often be too loud for infantile ears, which could potentially be dangerous. This research aimed to minimize the risks of infant sleep machines without reducing the effectiveness of the infant sleep machines themselves through the use of acoustic panels. Based on previous studies, it was hypothesized that the acoustic panels would reduce the noise levels of the ISM to less than recommended limits of 50 dB-A. A specific corner of a designated room was prepared with …
Creation Of A Cip Method For The Heat Exchangers At Rolls-Royce, Melanie Howe, Austin Williams, Caroline Dempsey, Bethany Fralick
Creation Of A Cip Method For The Heat Exchangers At Rolls-Royce, Melanie Howe, Austin Williams, Caroline Dempsey, Bethany Fralick
Journal of the South Carolina Academy of Science
Rolls-Royce produces various engines which must be tested prior to their distribution to ensure a high-quality product. The manufacturing plant contains four test cells where the engines can be subjected to high levels of torque and extreme temperatures. A heat exchanger is necessary in this testing system and over time, unwanted waste accumulates on the system’s plates. The team is tasked with developing and implementing a system mounted on a mobile cart which can provide data to determine whether the plates need to be cleaned. For this cleaning system to work, it must fully saturate the heat exchanger in cleaning …
Table Of Contents
Journal of the South Carolina Academy of Science
No abstract provided.
The Effect Of Poverty Levels And Minority Percentages On Lead Content In South Carolina Midlands School Drinking Water, Kathleen L. Barfield
The Effect Of Poverty Levels And Minority Percentages On Lead Content In South Carolina Midlands School Drinking Water, Kathleen L. Barfield
Journal of the South Carolina Academy of Science
No abstract provided.