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Articles 781 - 810 of 2158
Full-Text Articles in Physical Sciences and Mathematics
The Largest Bond In 3-Connected Graphs, Melissa Flynn
The Largest Bond In 3-Connected Graphs, Melissa Flynn
Honors Theses
A graph G is connected if given any two vertices, there is a path between them. A bond B is a minimal edge set in G such that G − B has more components than G. We say that a connected graph is dual Hamiltonian if its largest bond has size |E(G)|−|V (G)|+2. In this thesis we verify the conjecture that any simple 3-connected graph G has a largest bond with size at least Ω(nlog32) (Ding, Dziobiak, Wu, 2015 [3]) for a variety of graph classes including planar graphs, complete graphs, ladders, Mo ̈bius ladders and circular ladders, complete bipartite …
Cytotoxicity Assay Of Self-Assembling Protein-Based Biomaterials, Peyton Vaughan
Cytotoxicity Assay Of Self-Assembling Protein-Based Biomaterials, Peyton Vaughan
Honors Theses
Acute inflammation is a natural biological defensive response against infection,irritation, and injury. While inflammation is a natural process, chronic tissue inflammation has been implicated in the development of several different diseases. With the intent of minimizing collateral damage associated with long-term exposure of healthy tissues to anti-inflammatory drugs, the Pedigo laboratory has designed a system for the self-assembly of protein polymers as scaffolds for controlled-release of drugs to affected tissues. This protein polymer comprises two essential components, with the first component being the calcium-dependent protein, calmodulin, and the second being a corresponding binding peptide, M13. Because Calmodulin has a specific, …
Photophysical Characterization Of Newly-Synthesized Emissive Materials, Rachael Abigayle Nelson
Photophysical Characterization Of Newly-Synthesized Emissive Materials, Rachael Abigayle Nelson
Honors Theses
One key element in chemistry is understanding the chemical properties of a molecule so that its interactions with itself, other atoms or molecules, or its environment is well known. This knowledge alone allows the chemist to innovate and invent and thereby change the world. Light surrounds and sustains our lives; thus it is vital to understand how light interacts with common and newly synthesized materials. In this thesis the photophysical properties of newly synthesized materials will be discussed to give an overview of the many ways in which light interacts with the chemical materials composing our everyday lives. General photophysical …
Utilizing Natural Language Processing And Other Technical Tools To Automate The Financial Modeling Process While Maintaining Robustness In The Model, Robert Forrest Short
Utilizing Natural Language Processing And Other Technical Tools To Automate The Financial Modeling Process While Maintaining Robustness In The Model, Robert Forrest Short
Honors Theses
The objective of this thesis is to improve upon the most commonly utilized, entirely manual financial modeling process. This thesis gives guidance for implementing a set of technical tools that can be utilized in an individual's financial modeling process to automate repetitive and predictable tasks. The goal is not to provide a robust set of tools that can be implemented across all financial models; in fact, this may not be possible. The goal is to provide a basis for anyone who utilizes financial modeling to study their own modeling processes and adapt the given tools to fit into and improve …
Platelet-Derived Microparticles And Their Role In Sepsis, Robert Tramel
Platelet-Derived Microparticles And Their Role In Sepsis, Robert Tramel
Honors Theses
Causing at least 215,000 deaths in the U.S. annually- more than prostate cancer, breast cancer, and AIDS combined- and rising, sepsis is one of the most deadly medical conditions in America. Sepsis pathophysiology, however, is still incompletely understood, making it difficult for physicians to diagnosis and treat effectively. Given the time-sensitivity of treatment, researchers are now searching for new methods to identify sepsis early, developing more accurate prognostic markers, and developing new target therapeutic candidates. One biological component of interest in this research is the platelet-derived microparticle (PMP), a heterogeneous vesicle derived from the cell membrane of platelets found circulating …
An Analysis Of Stimuli Responsive Biomaterials Using Raman Spectroscopy And Computational Studies, Gretchen Harknett
An Analysis Of Stimuli Responsive Biomaterials Using Raman Spectroscopy And Computational Studies, Gretchen Harknett
Honors Theses
This thesis involves the computational and spectroscopic exploration of the linear dendritic block copolymer, poly(L-lactide)-poly(amido-amine), (PLA-PAMAM), under different environmental conditions using Raman spectroscopy, in hopes to utilize it in future effective and cost-efficient drug delivery systems. Janus dendrimers, a material made up of two different dendrimer portions, are currently being studied in great detail, as they possess many attractive features for materials scientists looking to develop ways for drugs to be delivered in more efficient manners than currently available to physicians. The instrumentation used to conduct this thesis is a high resolution Raman spectrometer. Computationally, Gaussian 09 was employed to …
Towards The Synthesis Of A Polyamine Perylenebisimide Derivative For Intercalation Into Quadruplex Dna, Bobby May
Honors Theses
Perylenebisimide intercalation in G-quadruplex DNA is an area of study that has increasing interest in cancer research. The ability of perylenebisimides to interrupt the structures of the G4 DNA on the end of telomeres has allowed for the observation of how the variable-regions of the perylenebisimide can have differing effects on anticancer properties. The purpose of this experiment was to synthesize a perylenebisimide with the intentions of observing its intercalating properties with G-quadruplex DNA. In order to accomplish this, dibenzylamine was substituted onto chloroacetonitrile through an SN2 reaction to produce 2-(dibenzylamino)acetonitrile. The 2-(dibenzylamino)acetonitrile was then reduced with LAH to yield …
Spectroscopic And Computational Studies Of The Hydrogen Bonding Interactions Of Hydroxyethyl Ethers, Ashley Elizabeth Williams
Spectroscopic And Computational Studies Of The Hydrogen Bonding Interactions Of Hydroxyethyl Ethers, Ashley Elizabeth Williams
Honors Theses
The isoenzymatic form of microsomal cytochrome P450, CYP2E1, is involved in the formation of oxygen free radicals, specifically hydroxyethyl ether. Chronic alcohol abuse has been found to induce larger levels of CYP2E1 in the liver, thus increasing production of these harmful free radicals. Generation of the hydroxyethyl ether oxygen free radicals occurs during the metabolism of ethanol in microsomes. The hydrogen-bonding interactions of hydroxyethyl ethers with water have yet to be analyzed, and information regarding the interactions with water can be applied directly to biological systems. Here, we employ Raman spectroscopy and computational chemistry to study hydroxyethyl ether complexes in …
Measurement Of The Verdet Constant For A Previously Uncharacterized Fused Quartz Glass, Samyukta Krishnamurthy
Measurement Of The Verdet Constant For A Previously Uncharacterized Fused Quartz Glass, Samyukta Krishnamurthy
Honors Theses
The objective of this experiment is to measure and analyze the Verdet constant for Corning 7980, a fused quartz glass with no previously published Verdet constant data. This quartz glass is being used at the Belle II experiment at Tsukuba, Japan. The Verdet constant is measured using the Faraday effect — a magneto-optical phenomenon that describes the rotation of the plane of polarization of light within a medium in the presence of an external magnetic field. This experiment quantifies the rotation of the plane of polarization with respect to the wavelength and the magnetic field. Data collected through this experiment …
A Study Of The Hydrophobic Interactions Between Twenty-Three Cb1 Selective Jwh Compounds And An Active-State Cb1 Receptor Model To Discover Key Structural Features Of The Jwh Compounds And Key Protein Residues Of The Cb1 Receptor, Lyncyn Louise Reliquias
Honors Theses
Synthetic cannabinoids, commonly found in Spice, have recently become a popular substitute for marijuana as they have similar effects to THC, the most powerful constituent of marijuana. Additionally, they are increasingly becoming a source of drug abuse as they cannot be detected with normal drug test screenings. This study specifically analyzed a total of twenty-three CB1 selective JWH compounds and their hydrophobic interactions with an active-state CB1 receptor model. The ligands were categorized per their structural similarities, and this study was aimed to find patterns within each structural moiety that would lead to the discovery of key structural features and/or …
An Integrative Synthetic, Spectroscopic, And Computational Study Of The Free Radical Chlorine Dioxide And Its Interactions With Hydrogen Bonded Networks, Sarah C. Sutton
An Integrative Synthetic, Spectroscopic, And Computational Study Of The Free Radical Chlorine Dioxide And Its Interactions With Hydrogen Bonded Networks, Sarah C. Sutton
Honors Theses
The free radical chlorine dioxide (ClO2) is a strong oxidizing agent that is used to purify drinking water and medical equipment. The existing literature shows discrepancies in the explanation of the solvent dependent properties of ClO2. The following thesis investigates these properties by integrating integrates inorganic synthesis, spectroscopic analyses, and computational methods. ClO2/water hydrogen-bonded networks were computed with the DFT method B3LYP with 6-31G(d,p) and 6-311++G(2df, 2pd) basis sets. Raman frequency computations were performed on local minima geometries. Experimental Raman spectra of chlorine dioxide solvated in water and methanol were obtained, and the fundamental symmetric stretch (nu1) of each spectrum …
Gold And Alloy Nanomolecules: Synthesis, Ligand Induced Core Conversion, Characterization, And Atomic Structure, Shevanuja Theivendran
Gold And Alloy Nanomolecules: Synthesis, Ligand Induced Core Conversion, Characterization, And Atomic Structure, Shevanuja Theivendran
Honors Theses
Gold nanoparticles have wide range of applications in the field of sensing, imaging, cancer therapy, and other biomedical applications. It is desired to have monodisperse and atomically precise gold nanoparticles to have better control and effective utilization of that nanoparticle. The nanoparticles that are less than 2 nm in size with precise number of atoms and ligands (± 0 atoms) which exhibit unique physical, chemical and optoelectronic properties are called as gold nanomolecules. This thesis presents the synthetic methodology and isolation of various monodisperse atomically precise nanomolecules and their characterization. UV-vis spectroscopy, Electrospray Ionization Mass Spectrometry (ESI-MS), Matrix Assisted Laser …
Modification Of Panobinostat To Increase Its Therapeutic Potential To Cure Multiple Myeloma, Sweta Adhikari
Modification Of Panobinostat To Increase Its Therapeutic Potential To Cure Multiple Myeloma, Sweta Adhikari
Honors Theses
Panobinostat is a potent histone deacetylase inhibitor that can impede function of a wide range of zinc-dependent histone deacetylases. Panobinostat is the first approved histone deacetylase inhibitor for the treatment of multiple myeloma, along with other drugs such as Velcade and Dexamethasone. Simplistically, it helps to shrink or eradicate tumor growth in multiple myeloma patients. However, the treatment has severe adverse effects due to its lack of selectivity. In collaboration with Dr. Shana Stoddard (Rhodes College, Memphis TN) and Fatima Rivas (St. Jude's Research Hospital, Memphis TN), our research aims to design a more selective model of panobinostat that binds …
Comparing Field And Laboratory Measurements Of Hydraulic Conductivity In The Mississippi Delta, Taylor Moore
Comparing Field And Laboratory Measurements Of Hydraulic Conductivity In The Mississippi Delta, Taylor Moore
Honors Theses
This research is part of a wider effort to investigate the decreasing water levels of the Mississippi River Valley Alluvial Aquifer (MRVAA), which is partially located in the Mississippi Delta in northwestern Mississippi. The extent of this research compares laboratory and field based measurements of saturated hydraulic conductivity, known as Ksat, in the vadose zone of the Delta. The soil samples used for the laboratory Ksat tests and textural analysis were collected at various depths from two boreholes near Sky Lake in Belzoni, Mississippi. Each sample was classified by Unified Soil Classification System (USCS) standards after being sieved and tested …
Quercitrin And Afzelin Isolation: Chemical Synthesis Of A Novel Methicillin-Resistant Staphylococcus Aureus (Mrsa) Antibiotic Analogue, Taylor Ramsaroop
Quercitrin And Afzelin Isolation: Chemical Synthesis Of A Novel Methicillin-Resistant Staphylococcus Aureus (Mrsa) Antibiotic Analogue, Taylor Ramsaroop
Honors Theses
The increasing prevalence of bacterial resistance to antibiotics is an epidemic where once easily treated infectious illnesses are becoming more difficult to treat, leading to prolonged suffering, exacerbated medical costs, and sometimes death. Methicillin-Resistant S. aureus (MRSA) is a strain of the Staph Infection causing bacteria that is resistant to penicillin-like beta lactam antibiotics and occurs at a high incidence in several countries in Europe, the Americas, and the Asia-Pacific region. In a routine screening of plant extracts, an extract of American Sycamore leaves (Plantus occidentalis) was noted to show promising activity against the experimental MRSA strain included in the …
Psammaplins Selectively Target Triple-Negative Metastatic Breast Tumor Cells That Are Genetically Programmed To Colonize Specific Organs, Thuy Phuong Le
Psammaplins Selectively Target Triple-Negative Metastatic Breast Tumor Cells That Are Genetically Programmed To Colonize Specific Organs, Thuy Phuong Le
Honors Theses
Five bromotyrosine-derived marine sponge metabolites, four psammaplins (1 — 4) and the psammaplin dimer, bisaprasin (5) were isolated from a lipid extract sample of the marine sponge Dendrilla lacunosa. Â Psammaplins act as histone deacetylase (HDAC) inhibitors that alter cellular gene expression. Â The D. lacunosa psammaplins activated the oxygen regulated transcription factor HIF-1 (hypoxia-inducible factor-1) in T47D human breast tumor cells and displayed cell line specific effects against aggressive organotropic metastatic cell lines that were derived from triple-negative MDA-MB-231 human breast tumor cells.
Effects Of Temperature On Activity Of Aquatic Hyphomycetes: A Microcosm Study, Kyra Harrington
Effects Of Temperature On Activity Of Aquatic Hyphomycetes: A Microcosm Study, Kyra Harrington
Honors Theses
Predicted increases in temperature under climate change scenarios are expected to affect not only atmospheric and water temperatures, but also the rate of heterotrophic activity and carbon dynamics and retention in ecosystems. The magnitude of the increase in metabolic activity of living organisms with increased temperature can be predicted by the Metabolic Theory of Ecology, however, multiple factors can cause deviations from simple predictions. The goal of this study is to assess the temperature sensitivity of aquatic hyphomycetes and fungi-mediated leaf litter decomposition by following responses to temperature of fungal biomass accrual, respiration and decomposition rates in laboratory microcosms simulating …
The Creation Of A Video Review Guide For The Free-Response Section Of The Advanced Placement Calculus Exam, Jeffrey Brown
The Creation Of A Video Review Guide For The Free-Response Section Of The Advanced Placement Calculus Exam, Jeffrey Brown
Honors Theses
The Creation of a Video Review Guide for the Free-Response Section of the Advanced Placement Calculus Exam follows the creation of a resource to help students prepare for the College Board’s Advanced Placement Calculus Exam. This project originated out of the authors personal experiences in preparing for this exam. The goal of the project was to create an accessible resource that reviews content, provides insights into the Advanced Placement exam, and creates successful habits in student responses. This paper, chronologically, details the development of the resource and a reflection on the final product and future uses.
Graphene Kirigami And Its Use In Biocompatible Strain Sensor, Erik Vyhmeister
Graphene Kirigami And Its Use In Biocompatible Strain Sensor, Erik Vyhmeister
Honors Theses
Graphene's large fracture strain (>30%), chemical inertness, and piezoresistive nature make it well suited for use as a biocompatible strain sensor. A rectangular multilayer strucutre with graphene as its operative component was designed. It consists of a bottom layer of SU-8, a center layer of graphene, and a top layer of SU-8 and gold, with gold acting as the electrical contact. Kirigami-style patterning is applied via photolithography and oxygen plasma etching, allowing for a greater fracture strain. Additionally, the kirigami affects the stress concentraton in the graphene, affecting its piezoresistive gauge factor. The complete (patterned) structure exhibited a fracture …
Calculating And Analyzing Night Sky Brightness For The Commerce/Greenville, Texas Area, Rebecca Bosmans
Calculating And Analyzing Night Sky Brightness For The Commerce/Greenville, Texas Area, Rebecca Bosmans
Honors Theses
No abstract provided.
Common Core In Tennessee: An Analysis Of Eighth Grade Mathematics Standards, Hayley Little
Common Core In Tennessee: An Analysis Of Eighth Grade Mathematics Standards, Hayley Little
Honors Theses
Since their introduction in 2010, the Common Core State Standards (CCSS) have been a highly controversial topic in educational reform. Though the standards are not a product of the federal government and are not federally mandated, they do represent a push towards national academic standards in America. For states such as Tennessee, educational policies of the past pushed them to lower their academic standards in order to create the illusion of success. Those states are now some of the places that have seen the most change with the adoption of the CCSS. It still remains somewhat unclear, however, which changes …
Sedimentology Of A Small Estuarine Marsh Along East (Pensacola) Bay, Florida, Jesse Pfadenhauer
Sedimentology Of A Small Estuarine Marsh Along East (Pensacola) Bay, Florida, Jesse Pfadenhauer
Honors Theses
Sediment samples from a marsh along East (Pensacola) Bay were analyzed using various laboratory techniques. The color, magnetic susceptibility, organic content, carbonate content, and sediment size distribution of each sample was measured to attain an overall profile of the sedimentary characteristics of the area. Using the GPS coordinates of each collection site, samples were categorized into sub-environments based on their position within the marsh. The trends within the study area and sub-environments were evaluated and interpreted. The data indicate that this marsh is a siliciclastic, fining-inland area that is frequently inundated with tidal fluctuations and storm surges. These storm surges …
An Application Programming Interface For Parliamentary Procedure, Grant David Bourque
An Application Programming Interface For Parliamentary Procedure, Grant David Bourque
Honors Theses
No abstract provided.
Facies Reconstruction And Stratigraphy Of A Late Pleistocene Bald Cypress Forest Discovered On The Northern Gulf Of Mexico Continental Shelf, Suyapa Gonzalez-Rodriguez
Facies Reconstruction And Stratigraphy Of A Late Pleistocene Bald Cypress Forest Discovered On The Northern Gulf Of Mexico Continental Shelf, Suyapa Gonzalez-Rodriguez
Honors Theses
No abstract provided.
Facies Reconstruction And Stratigraphy Of A Late Pleistocene Bald Cypress Forest Discovered On The Northern Gulf Of Mexico Continental Shelf, Suyapa Gonzalez
Facies Reconstruction And Stratigraphy Of A Late Pleistocene Bald Cypress Forest Discovered On The Northern Gulf Of Mexico Continental Shelf, Suyapa Gonzalez
Honors Theses
No abstract provided.
‘A Novel Kaposi’S Sarcoma Therapy:’ Plasmonic Nanoparticles For Light-Mediated Drug Delivery, Blake Peter Kruger
‘A Novel Kaposi’S Sarcoma Therapy:’ Plasmonic Nanoparticles For Light-Mediated Drug Delivery, Blake Peter Kruger
Honors Theses
No abstract provided.
Assessing The Feasibility Of A One-Pot, Tandem Olefin Metathesis And Isomerization Sequence To Synthesize Conjugated Aromatic Olefins, Ajay D. Makwana
Assessing The Feasibility Of A One-Pot, Tandem Olefin Metathesis And Isomerization Sequence To Synthesize Conjugated Aromatic Olefins, Ajay D. Makwana
Honors Theses
The synthesis of substituted phenylpropene dimers using a one-pot, tandem olefin metathesis and isomerization sequence has been studied. This sequence relies on the facilitated, in-situ conversion of a ruthenium carbene species (Ru=C) to a ruthenium hydride species (Ru-H) upon addition of an inorganic hydride source. Three separate reactions occur within one reaction flask: 1) olefin metathesis of the starting phenylpropene to yield phenylpropene dimer via Ru=C catalyst, 2) conversion of Ru=C to Ru-H via addition of an inorganic hydride source, 3) isomerization of phenylpropene dimer via insertion and β-hydride elimination to yield conjugated product. The focus of the study has …
Protein Residue-Residue Contact Prediction Using Stacked Denoising Autoencoders, Joseph Bailey Luttrell Iv
Protein Residue-Residue Contact Prediction Using Stacked Denoising Autoencoders, Joseph Bailey Luttrell Iv
Honors Theses
Protein residue-residue contact prediction is one of many areas of bioinformatics research that aims to assist researchers in the discovery of structural features of proteins. Predicting the existence of such structural features can provide a starting point for studying the tertiary structures of proteins. This has the potential to be useful in applications such as drug design where tertiary structure predictions may play an important role in approximating the interactions between drugs and their targets without expending the monetary resources necessary for preliminary experimentation. Here, four different methods involving deep learning, support vector machines (SVMs), and direct coupling analysis were …
Primality Proving Based On Eisenstein Integers, Miaoqing Jia
Primality Proving Based On Eisenstein Integers, Miaoqing Jia
Honors Theses
According to the Berrizbeitia theorem, a highly efficient method for certifying the primality of an integer N ≡ 1 (mod 3) can be created based on pseudocubes in the ordinary integers Z. In 2010, Williams and Wooding moved this method into the Eisenstein integers Z[ω] and defined a new term, Eisenstein pseudocubes. By using a precomputed table of Eisenstein pseudocubes, they created a new algorithm in this context to prove primality of integers N ≡ 1 (mod 3) in a shorter period of time. We will look at the Eisenstein pseudocubes and analyze how this new algorithm works with the …
Effect Of Deictic Gestures On Direction-Giving In Virtual Humans, Anthony Pham
Effect Of Deictic Gestures On Direction-Giving In Virtual Humans, Anthony Pham
Honors Theses
Virtual agents are animated characters that use speech and gesture to interact with human users. They can serve as an intuitive interface for a variety of purposes. I am investigating the use of deictic gestures by a direction-giving agent. Deictic gestures are pointing gestures that humans often use in direction-giving to help clarify the route and destination. In my experiment, I developed a virtual agent to give directions to people to six different locations with the following spatial relationships to the starting point: left, right, left behind, right behind, left up, and right up. Three versions of the virtual agent …