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Articles 1 - 12 of 12
Full-Text Articles in Physical Sciences and Mathematics
A Simulation Of Nuclear Pasta Using The Lattice Boltzmann Computational Method, Alexander Westbrooks
A Simulation Of Nuclear Pasta Using The Lattice Boltzmann Computational Method, Alexander Westbrooks
Honors Theses
No abstract provided.
The Rotational Period Distribution Of Massive Magnetic White Dwarfs, Zorayda Martinez
The Rotational Period Distribution Of Massive Magnetic White Dwarfs, Zorayda Martinez
Honors Theses
Rapidly rotating white dwarfs (WDs) have the potential to come about by either double degenerate mergers or weak coupling between the core and the outer envelope during the asymptotic giant branch (AGB). For both cases, knowledge of the rotational period distribution places tight constraints on the evolution of angular momentum transfer. Here we present initial results from a study of the rotational period distribution of 19 massive (M > 0:9M), magnetic, DA WDs observed by the Transiting Exoplanet Survey Satellite (TESS) and 17 observed with ground-based telescopes and analyzed with the Lightkurve python package. We present periodograms, folded light curves, and …
Computational Study Of The Rotational Barrier In Indole Derivatives, Javaughn Martinez
Computational Study Of The Rotational Barrier In Indole Derivatives, Javaughn Martinez
Honors Theses
The purpose of this computational study is to understand the rotational barrier in indole derivatives, leading to stereoisomers, specifically atropisomers, which will impact the research direction focused on the development of a porphyrin hosts in Professor Starnes’s group. The Starnes research group is working to synthesize a porphyrin host that can function as a sensor or to remove harmful and deleterious anions such as phosphate and nitrates (Busschaert, et al, 2015). We will utilize the data provided to understand the required energy to restrict a rotation around the indole-benzene bond. To do so, the indole derivatives will be studied using …
Membership Probabilities Of White Dwarfs In Open Star Clusters, Sarah Phillips
Membership Probabilities Of White Dwarfs In Open Star Clusters, Sarah Phillips
Honors Theses
This thesis explores the relationship between astronomical position data and star cluster membership. Our research project focuses on the mathematical probability of cluster membership for white dwarf stars (WDs), specifically membership candidates within the open cluster Messier 35. Through Gaussian analysis of proper motion data, we examine the membership probability of each candidate. Establishing cluster membership has broad applications and can allow further determination of a star’s characteristics including stellar age and evolution. Of particular interest are two WD member candidates for Messier 35: LAWDS 4, a DB WD with a helium-dominated atmosphere as opposed to the more common hydrogen-dominated …
Evaluating Neutron Star Binding Energies Using Rotating Accreting Models, Nathan Moore
Evaluating Neutron Star Binding Energies Using Rotating Accreting Models, Nathan Moore
Honors Theses
Neutron star binding energy increases due to accreting matter from neighboring astronomical bodies, and decreases due to the star spinning up, increasing its angular velocity. We present a novel set of models that account for both increasing angular velocity and accreting matter to track a neutron star’s evolution. We arrive at these models through studying and reconfiguring computational investigations from the past, particularly a code which generates a model for a given fixed baryon mass and angular velocity and another that takes it from one baryon mass and angular velocity to the next one through accretion, to obtain a full …
Substituent Effect Analysis On Halogen Bonding Interactions, Summer Hanson
Substituent Effect Analysis On Halogen Bonding Interactions, Summer Hanson
Honors Theses
This study was used to determine the significance of substituents placed on aromatic molecules and how electron-donating groups (EDG) and electron-withdrawing groups (EWG) affect the strength of the halogen bond. Each study involved the same substituents, each differing in electron-withdrawing and electron-donating capability. Five different systems were created on computational software to evaluate the distance between the halogen bond donor and halogen bond acceptor. In two studies, the goal was to find the best electron-donor on the halogen bond acceptor (donor of electron density) while the halogen bond donor remained constant. For one study, the goal was to determine the …
Tracking System Effectiveness For Texas Police Departments In Low-Income Communities, Jakob Scarcelli
Tracking System Effectiveness For Texas Police Departments In Low-Income Communities, Jakob Scarcelli
Honors Theses
No abstract provided.
Computational Investigation Of Porphyrin-Based Host Design For Anions And Ion Pairs, Symphony Hill
Computational Investigation Of Porphyrin-Based Host Design For Anions And Ion Pairs, Symphony Hill
Honors Theses
Little research has heretofore been devoted to studying the binding interactions between porphyrin-based molecular hosts and anions or ion pairs. Such interactions could be important in synthesizing molecules capable of detecting, binding, extracting, and transporting ions of biological, environmental, and industrial significance. With this in mind, computational studies of nine different porphyrin hosts were performed to examine the structural and binding properties of each molecule and potential ion guests. Using the Spartan computational chemistry software, each porphyrin was modeled and binding was tested with a number of ions of different shapes and sizes. Data was then collected regarding the distances …
A Study On The Extrasolar Transits Of Wasp-89b, Wasp-32b, And Hat-P-23b, Conner Kelley
A Study On The Extrasolar Transits Of Wasp-89b, Wasp-32b, And Hat-P-23b, Conner Kelley
Honors Theses
No abstract provided.
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.
Interactions Of Zn2+ On Insulin Oligomer Formation, Stability, And Fragmentation: Analysis Using Esi-Im-Ms, Tiffany Culver
Interactions Of Zn2+ On Insulin Oligomer Formation, Stability, And Fragmentation: Analysis Using Esi-Im-Ms, Tiffany Culver
Honors Theses
Insulin is a hormone protein essential to the regulation of blood sugar levels. Although it is active as a hormone in the monomer (single insulin unit) form, it is stored in the pancreas as a hexamer – a coordination of six insulin units and zinc ions. This research analyzes the effects of zinc ions on the formation, stability, and fragmentation of the hexamer and other oligomer species in varying solution and instrument conditions, including the ability of the higher oligomers to transfer from crystallization to solution to a gas phase for analysis using electrospray ionization ion mobility mass spectrometry (ESI-IM-MS). …
Interstellar Navigation By Pulsars, Andrew Dahir