Digital Commons Network^™

Microplastic Pollution: Analytical Method Development And Current Policy, Klara Missling

Honors Theses

Microplastics pollution is an emerging research and policy topic. Standardized methods are not yet established for scientific studies or compliance with legislation requiring monitoring of microplastics. This study combines the work done in the laboratory detecting and counting microplastics in samples from the Mississippi River and in oysters from the Mississippi Sound with a literature review on microplastic pollution policy. In the laboratory, I helped prepare samples for analyses using a novel one-pot method that led to a publication in the journal Environmental Toxicology and Chemistry. Later, I compared visual counting of microplastics stained with Nile Red dye using a …

Going Green: A Comparative Analysis Of Green Urbanism In Paris And Shanghai, Jeanne Torp

Honors Theses

As climate change becomes more pressing with each day and as we scramble to slow down the challenges it poses, adapting the means of operation within our cities will become an invaluable tool for reducing humanity’s carbon footprint. This paper seeks to study the ways in which green infrastructure in global cities can be used to do just that—adapting to and mitigating the effects of challenges resulting from climate change. In order to provide a broad overview of the effectiveness of such green infrastructure systems across the globe, this research will focus on two cities that vary greatly in their …

Computational Study On Suppression Of Airfoil Flow Separation Using High-Frequency Translational Surface Actuation, Bibek Gupta

Honors Theses

Flow separation is a phenomenon that occurs when pressure increases in the streamwise direction of a flow, making a distinctive boundary layer or separation bubble. It causes aircraft to experience an increase in drag and noise and a decrease in a lift, hence degrading their aviation performance. This study uses numerical simulations to understand better the effects of high-frequency translational surface actuation (HFTSA) on flow separation control. The numerical simulations mimic the experimental parameters of an experiment performed by Okoye et al. on using the HFTSA system to control flow separation. A symmetrical airfoil structure of chord length of 0.3 …

An Overview Of Select Accounting Topics Through Case Studies And Research, James Pugh

Honors Theses

During the calendar year of 2020, amongst all the turmoil surrounding our world, I had the privilege of taking part in Dr. Dickinson’s Honors 420 course. I will be forever grateful for the fresh and in-depth outlook she imparted on me in terms of my profession and the topic of accounting as a whole. This thesis is an overview of several broad and important accounting topics, along with various world-wide economic and financial reporting issues that have changed the accounting profession. This thesis has allowed strengthen my understanding of the subject of accountancy. The University of Mississippi, accounting students of …

Design, Analysis, And Optimization Of A Process To Produce Dimethyl Ether From Methanol, Thomas Mathwig

Honors Theses

The company that the engineering team works for is facing a contract loss with one of its customers of methanol. To avoid economic losses, a process has been proposed for converting the unused methanol to dimethyl ether (DME) through a dehydration reaction. After a preliminary simulation of the base case and optimization of the distillation column, an Equivalent Annual Operating Cost (EAOC) of $140,000 was calculated for the column. The EAOC was the sum of the annualized capital investment and the annual operating cost. Determining the process to be worth pursuing, a Toller was brought in to provide rental equipment …

Transcriptional Activation Of Phytochrome-Interacting Factor 4 Is A Conserved Mechanism Of Thermomorphogenesis In Dicotyledenous Plants, Caroline Clutton

Honors Theses

In the model dicotyledonous plant Arabidopsis thaliana, the basic helix-loop-helix (bHLH) transcription factor Phytochrome-Interacting Factor 4 (AtPIF4) plays a central role in regulating the ambient temperature-regulated hypocotyl growth response. Warm temperatures induce AtPIF4 transcription and the accumulated AtPIF4 promotes thermomorphogenesis by enhancing the expression of a group of growth-related genes. However, whether this thermo-induced growth response is universal, and more importantly, whether there is a conserved thermomorphogenetic mechanism shared in dicots is largely unknown. Here we show that higher ambient temperatures promote the hypocotyl growth in four other dicotyledonous plants, including Brassica rapa, Camelina sativa, Nicotiana benthamiana …

Examining Public Water Systems Servicing Schools And Childcare Facilities To Inform Policy: A Study Of Lead Exposure In The Mississippi Delta, William Farmer

Honors Theses

Abstract

This study was initiated with the intent of identifying elementary schools and childcare facilities in the Mississippi Delta with children ages 6 and under that may have public water systems (PWSs) with lead exceedances of 5 ppb. We also aimed to identify the existence, and further the availability, of information regarding which public schools and childcare facilities were serviced by which public water systems. Based on the results of this study, considerations related to Mississippi’s ability to comply with the 2020 Revisions of the Lead and Copper Rule requiring testing in all public schools were determined. Seven principal counties …

Sizing And Economics Of Solar Powered Indoor Swimming Pool, Aman Bhatta

Honors Theses

With increasing global population and aspiration for higher standards for living, there is a rapid increase in demand for energy. With the concerns of climate change becoming ever more pressing, a shift from the conventional energy source to an alternative green version to meet the energy demand could be of significant interest. A large amount of energy is required to maintain water temperature in the swimming pool at a human comfort temperature. Several studies have been performed to calculate and evaluate the feasibility of powering thermal systems for swimming pools using solar energy. Still, extensive analysis using solar thermal energy …

Parametric Design Of Flywheel For An Electric Punch Press, Prashant Dhakal

Honors Theses

Almost all designs start with a design requirement. These may be weight, volume, clearance, and even custom calculations. Finding a solution that meets these requirements often involves tedious and time-consuming iterations. Once the solution has been found, the design must be optimized to find the best possible solution. Finding the ‘best possible design’ requires substantial time and effort dedicated to iterating and analyzing the potential model solutions. This is where Parametric design comes into play. The Parametric design aids in specifying the key parameters of the design and makes changes interactively, with the model updating automatically. The purpose of this …

Reflecting On Our Terrain: How People And Places Create A Spirit Of Home, Meagan E. Harkins

Honors Theses

This thesis explores the nature of home. It situates the idea of home, both as a physical place and a spiritual state, where the subjects of these stories find belonging. Fourteen interviews were conducted, from December 2020 through February 2021, resulting in a series of longform stories. Eight interviews were recorded with immediate family and childhood friends in my hometown, the suburbs of Orlando, Fla. The balance of the stories derived from Zoom interviews, culminating in a 1,200-mile road journey to South Carolina, for the remaining ones.

What emerged from these oral history interviews and ensuing longform pieces are three …

Overlooking Subtraction, Shea Stewart

University of Mississippi News

Psychology study finds people prefer adding tasks, items when making changes

April 29, 2021, The Daily Mississippian

Daily Mississippian (all digitized issues)

No abstract provided.

Oxford Students Win Big At Regional And State Science Fairs, Staff Report

University of Mississippi News

MSEF Region VII Upper Fair and State Fair 2021 awards announced

It’S A Small World After All - Journey To Commencement, Edwin Smith

Journey to Commencement

Geological engineering senior Said Al Kindi discovers friends from around the globe

University Honors Two Beloved Employees With Frist Awards, Mitchell Diggs

University of Mississippi News

JoAnn Edwards and Jacqueline Certion recognized for passion for serving students

Research News. Publications, 2021. Volume 1, Soumyajit Majumdar

Publications (2015-)

Publications that appeared during the period of January 1 through March 31, 2021

A Fond Farewell, Bill Dabney

University of Mississippi News

No abstract provided.

Synthesis Of Halogenated Glyoximes, Nickie Tiwari

Honors Theses

Dr. Huang is a chemical engineering professor at the University of Alabama. He is interested in using alpha-Halogenated glyoximes to better understand impurity incorporation of organic additives. Various alpha-Halogenated glyoximes are being synthesized for his study. In this project, bromodimethylglyoxime is being synthesized. This is a two-step reaction. The first reaction converts diacetlymonoxime to bromodimethylglyoxalmonoxime through bromination. The product is then reacted with hydroxylammonium chloride to form bromodimethylglyoxime. Ultimately, there has been success in forming bromodimethylglyoxalmonoxime. For this reaction, solvent ratios of methanol must be proportional to literature values. However, there have been difficulties in converting bromomonoxime to bromodimethylglyoxime. There …

Ole Miss Wins Southeastern Conference Mba Case Competition, Southeastern Conference

University of Mississippi News

Team had 24 hours to formulate an approach to solve a real-world business challenge

The Politics Of Taxation: An Economic Analysis Of Politically Motivated Tariffs Placed On French Wine By The United States, Katelyn Hutson

Honors Theses

In this paper, I research the economic distortions caused by a 25% retaliatory tariff placed on French wine by the United States in October 2019. This tariff was enacted as retaliation for airline subsidies provided by various European countries to Airbus and was approved by the WTO as a valid compensation for the loss these subsidies caused to the American company Boeing. In order to view the correlation between fluctuations in US import quantities of French wine and the retaliatory tariff, I estimated the effect of the tariff on the wine market using linear regression analysis. Through this regression, I …

Three Students Selected For Prestigious Nsf Research Fellowships, Shea Stewart

University of Mississippi News

UM trio to use Graduate Research Fellowship Program to further explorations

Installation Press For Heat Set Inserts, Maxwell Warren

Honors Theses

3D printing has evolved from a slow, laborious process in the 1980s’s to a cutting- edge technology that is being used in industries such as aerospace and medical. Though the technology is relatively new in comparison to CNC machines and other items found in a typical machine shop, additive manufacturing is growing towards a multibillion-dollar industry. For this reason, many industries are turning to 3D printing for research and development tasking as well as just using it to supplement for parts until they have been manufactured through more traditional means. The downside of 3D printing is that it is commonly …

Factors In Disaster Response In Mexico, Central America, And The Caribbean, Ashleigh Daugherty

Honors Theses

This research examines the impacts that existing factors can have on the outcome of natural disasters. In order to study this question more thoroughly than previous research, this paper conducts a small n study on the Middle America region through case studies in Mexico, El Salvador, and Haiti. Each of these case studies are evaluated by their outcomes of severe earthquakes and the conditions in which these earthquakes occurred. These conditions being: their economies, governances, and pre-existing natural disaster plans. The analysis of these indicators attempts to understand why certain countries perform better in natural disasters compared to others. In …

Describing The Gut Microbiome Of Two Freshwater Mussel Species Within The Tennessee River Basin, Eloise Cotten

Honors Theses

Freshwater mussels are important bioindicators of aquatic environmental quality, yet little is known about the composition of their gut microbiome or how it varies between different locations and mussel species. In this study, two species of mussels were collected from three sites located in two rivers, the Duck River and the Paint Rock River of the Tennessee River Basin. The gut microbiome of each mussel was characterized by 16S rRNA gene sequencing. Gut microbial communities were primarily composed of members of the Planctomycetes, Cyanobacteria, and Proteobacteria, which along with six other phyla accounted for nearly 90% of the sequences. Dominant …

Artificial De Novo Tetramer Hydrogenase Mimic, Co-Metallopeptide Titration, And Photocatalysis, Thuy Hien Le

Honors Theses

Alternative energy is more imperative than ever as we continue to exhaust nonrenewable resources. There is promise in artificial hydrogenases that produce hydrogen gas which can be an alternate source of clean, sustainable renewable energy. Moreover, artificial metalloenzymes were designed for solar H2 production using de novo designed metallopeptides. A computer-guided design approach was used to conceive the peptides. These peptides are 30 amino acids long and are designed to self-assemble into tetrameric structures. There are suitably positioned cysteine residues that bind the metal Co and form metallic clusters within these artificial proteins. The Co-metallopeptides were then characterized by employing …

Computer Science Majors To Benefit From Gift To School Of Engineering, Bill Dabney

University of Mississippi News

No abstract provided.

Rooming App Take First Prize In Business Plan Contest, Ali Mae Walsh

University of Mississippi News

Froomie, an app to help find the perfect roommate, wins the Gillespie Competition

Surface-Eroding Drug Delivery Films For Sequential And/Or Intermittent Release Of Psychoactive Drugs, Jason Price

Honors Theses

ABSTRACT JASON BLAKE PRICE: Surface-Eroding Drug Delivery Films for Sequential and/or

Intermittent Release of Psychoactive Drugs For patients with psychiatric diseases, adherence to medication schedules, medication

errors, and abuse are common issues. Promising new forms of therapy for these patients, such as micro-dosed lysergic acid diethylamide (LSD), where patients receive 10-20% of a full dose every third day, present further drug delivery challenges. Sequential or intermittent release of drugs from an implanted device could ensure long-term drug compliance, automate drug dosing during the life of the implant, and eliminate potential for abuse and medication errors. To this end, we generated …

Generous Donations Smash Record During Ole Miss Giving Day 2021, Tina H. Hahn

University of Mississippi News

No abstract provided.

Alumna Discusses Role With Kansas City Chiefs, Meaghan Flores

University of Mississippi News

Hospitality management program's spring industry speaker series continues on Zoom