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Structural Investigations Using Theoretical Approaches : A Study Of Metal Halides, Borylenes, Phenalenyl Complexes And Σ-Hole Interactions, Supreeth Prasad

Honors Theses

The anomalous bending in the group 2 binary dihalides and the absence of this behavior in group 12 systems is well established. Their structuralpreferences contradict simple bonding models, yet they have received little to no attention in the literature. In this work, for the first time, the gas phase structuralpreferences of the groups 2 and 12 mixed (ternary) dihalides MXY (M=Be, Mg, Ca, Sr, Ba, Ra, Zn, Cd and Hg,and X, Y=F, Cl, Br, I, At) are investigated at high levels of theory. I extend a previously established softness criterion for bending to the mixed systems and I find that …

Corporate Equity Performance And Changes In Firm Characteristics, Cole Mclemore

Honors Theses

While prior equity performance research analyzes portfolio characteristics using multi-factor models, portfolio groups are typically utilized to explain average returns. Instead, I explore annual firm-level data to compare with annual percentage changes in firm characteristics, emphasizing model predictive power and individual variation. My analyses result in a significant link between individual firm equity returns with percentage changes in total assets, book-to-market ratios, current ratios, and shares outstanding, in addition to historical returns and average market returns. My findings affirm prior work illustrating the importance of profitability, size, liquidity, momentum, and market returns, though I observe minimal evidence of the importance …

Mobilizing Jewishness, Gabriella Foster

Honors Theses

As a dance practitioner and self-identified Jew, I am deeply committed to social action through performance. Over the course of the past year, I explored the capacity of contemporary dance practices to support Jews in reflecting on and conceptualizing their Jewish experience. Through literary and creative research, the designing and facilitating of movement workshops in mid-Maine Jewish communities, and the creation of an evening-length performance piece titled, Shelanu (Ours), I discovered the numerous ways in which these two aspects of my identity could enrich one another. In the wake of several anti-Semitic incidents both nationally and locally this year, this …

Expansion Of An Ultracold Neutral Plasma, Yin Li

Honors Theses

Ultracold neutral plasmas (UNP) exhibit interesting behavior and are more feasible to control than hot plasmas. Physicists would like to lower the temperature of a UNP to achieve a higher Coulomb coupling parameter, Γ for both electrons and ions. However, the three body recombination (TBR) between ions and electrons produces Rydberg atoms and heats up the plasma electrons, thereby ionizing them to Γe < 0.2. Adding Rydberg atoms to the plasma will reduce the temperature of a UNP in certain situations. In this honors project, we tried to achieve a Γe value greater than 0.5 by embedding Rydberg atoms multiple times in the plasma. We did extensive numerical simulations, but we were unable to replicate previous results from another group which obtained Γe = 0.5 in the first 1 µ s of plasma evolution. However, we were able to use the simulation results to test various different experiment scenarios. For experiments, we created a UNP of Rubidium atoms in the magneto-optical trap by laser cooling and photoionization. We figured out a nice way to zero the electric field within the field meshes by looking at the plasma expansion very late in its evolution through the micro-channel plate. We set the voltage and delay on the field mesh bias to find expansion velocity of the plasma for time t > 50 µs, and we used different methods to deduce the expansion velocity from the ion time of flight signals. However, we found that there was no relation of Γe at 1 µ s and the expansion velocity …

Game Theory In Cricket, Shabab Ahmed

Honors Theses

The paper uses the natural setting of cricket to test theoretical predictions in game theory. In this setting, the agents play a one-shot-two-person constant sum game. The paper assesses whether trained professionals in cricket follow the `mix' of strategies predicted by Nash equilibria. The test uses a unique dataset derived from commentary data comprising of bowler and batsman strategies and outcomes. The paper creates a model for bowler-bastman interactions in cricket and uses this in conjunction with the data to generate predicted Nash equilibrium frequencies. These predicted frequencies are then compared with the actual frequencies from the data. My study …

Precariedad En La Pantalla: El Género Fílmico De La Crisis Española, Lauren M. Grant

Honors Theses

La crisis económica española (2008—Presente) impactó España con mucha fuerza, dejando a mucha gente en estados de precariedad y vulnerabilidad. Estas experiencias de la crisis se reflejan en cine de crisis español, lo que frecuentemente pone a los protagonistas en situaciones de precariedad física que representan metafóricamente las realidades de la crisis. Además, el cine de crisis puede tener aplicaciones activistas a través de animar a la gente de tomar acción contra la corrupción política y desigualdad económica. Esta tesis analiza tres películas españolas de distintos géneros fílmicos que son ejemplos del cine de crisis: Los amantes pasajeros (Almodóvar, 2013), …

Comparing The Management Of Adhd In The United States And Vietnam: A Cross-Cultural Exploration, Nguyen Nhat Thu Le

Honors Theses

Attention-deficit/hyperactivity disorder (ADHD) is a common mental disorder characterized by inattention, hyperactivity and impulsivity. Since ADHD was formally recognized by psychiatrists in the US in 1968, knowledge about this condition has spread to many countries, including Vietnam. The US and Vietnam differ significantly in their perception and management of this disorder. ADHD is an “academic disorder” in the US because the intensifying pressure on children to succeed academically is a key factor in the emergence of ADHD, as well as its high diagnosis rates in some states. In contrast, Vietnamese people consider ADHD a developmental disorder of early childhood, apparently …

On Writing And Righting History: The Stakes Of Holocaust Interpretation And Remembrance In Poland And The United States, Noa Gutow-Ellis

Honors Theses

This thesis explores the ways in which American Jews - and Americans more generally, by way of the Americanization of the Holocaust - have come to think about and understand Poland and how Poland has subsequently rejected their narratives. Historically, American Jewish cultural works have placed Poland as a geographic space, nation, and people at the center of stories of Jewish suffering in the Holocaust and World War II. In its quest to right and correct historical misunderstandings, this project looks at the ways Poland has worked to completely revise the historical narrative.

Through tracing historiographies of separateness between Jewish …

Evaluating The Iron Geochemistry Of Terrestrial Aerosol Sources To The Subarctic Pacific Ocean, Meg Yoder

Honors Theses

Wind-blown dust and volcanic ash deposited in high nutrient, low chlorophyll (HNLC) regions can fertilize phytoplankton by providing iron and other trace nutrients, in turn impacting ecosystems as well as the global carbon and nitrogen cycles. The second largest HNLC region in the world is the northeastern subarctic Pacific. Aeolian transport to this region deposits lithogenic material including desert-derived dust from Asia, glacier-derived dust from Alaska and northwestern Canada, and volcanic ash from Eurasia and North America.

This research aims to assess the geochemistry of aerosol sources to the northeastern subarctic Pacific in relation to the biological availability of iron. …

Assessing The Invasive Potential Of Najas Minor In Maine, Kaitlin M. Volk

Honors Theses

Najas minor (European naiad), a relatively new invasive aquatic plant to the state of Maine, is thought be spreading more aggressively than previous invasive aquatic plants have. Once established, N. minor grows into dense monocultures that replace all native plant species, leading to a disruption in ecosystem functioning, a loss in food and habitat for invertebrates and fish, and a decrease in the recreational value of a waterbody. Understanding the natural history of N. minor – how it is dispersed and how long seeds can survive – is important for understanding the invasive potential of the species. However, no previous …

Biodiversity And Distribution Of Benthic Foraminifera In Harrington Sound, Bermuda: The Effects Of Physical And Geochemical Factors On Dominant Taxa, Nam Le

Honors Theses

Harrington Sound, Bermuda, is a nearly enclosed lagoon acting as a subtropical/tropical, carbonate-rich basin in which carbonate sediments, reef patches, and carbonate-producing organisms accumulate. Here, one of the most important calcareous groups is the Foraminifera. Analyses of common benthic orders, including miliolids (Quinqueloculina and Triloculina spp.) and rotaliids (Homotrema rubrum, Elphidium spp., and Ammonia beccarii), are essential in understanding past and present environmental conditions affecting the island's coastal environment. These taxa have been studied previously; however, factors explaining their individual patterns of abundance in the Sound are not well detailed. The goal of this study is …

Investigating The Effect Crime Has On Uber And Yellow Taxi Pickups In Nyc, Kebing Li

Honors Theses

How to manage the relationship between Uber and the local taxi industry has been a long-lasting and hot topic for most of the major cities around the world. Whether Uber is stealing money from and undermining the local taxi drivers or it is beneficial for public transportation has no certain conclusions. In this paper, we focus on the city of New York, where both Uber and traditional Yellow Taxi play important roles in public transportation and city culture in general, and we are trying to investigate the factors that are going to affect Uber and Yellow Taxi pickups in New …

Pickles And Pastrami: The Core Of The American Jew, Theo Satloff

Honors Theses

This thesis argues the there is a strong, interdependent relationship between the creation of the American Jewish deli and the growth and progress of the food technology, food safety, and society within American life. The importance of recognizing the Jewish deli as a key element in tracing the history of American life post-1800s has been underemphasized throughout the deli’s entire existence. Jewish delis represented the intersection of centuries-old technologies and modern innovations, the meeting of centuries-old cultures and new communities, and formed the basis for a force that would have an outsized impact on American politics thereafter.

Algorithmic Surveillance: A Hidden Danger In Recognizing Faces, Lydia F. Venditti, Jim Fleming, Kara Kugelmeyer

Honors Theses

The goal of this thesis is to present the current status and awareness of facial recognition technology and their use as part of video surveillance systems. Specifically, I intend to help readers develop a greater understanding of how facial recognition systems contain algorithms that perpetuate bias in their matching and recognition of faces. Current research demonstrates that algorithms differentially recognize faces from different races and genders. As a technology with substantive impacts for use and abuse, more scrutiny of facial recognition technology is necessary. This paper will also help readers understand the dangers of facial recognition as a biometric technology …

Basis Reduction In Lattice Cryptography, Raj Kane

Honors Theses

We develop an understanding of lattices and their use in cryptography. We examine how reducing lattice bases can yield solutions to the Shortest Vector Problem and the Closest Vector Problem.

Insects And The Evolution Of Developmental Pathways: Functional Analysis Of Genetic Sex Determination Mechanisms In Oncopeltus Fasciatus, Josefine Just

Honors Theses

Natural selection alters genetic pathways over evolutionary time. However, different pathways have been shown to maintain mutations at varying rates, leading to different levels of conservation across developmental pathways. Sex determination pathways, in particular, show vast diversity across animals despite the fundamental conservation of biological sex itself. Here, I investigated the sex determination pathway of the hemimetabolous insect, Oncopeltus fasciatus. The large milkweed bug, O. fasciatus, is part of the order Hemiptera, which provides a relevant outgroup study to other insects in which sex determination has been studied to date. I studied three sex determination genes, intersex, fruitless …

Finding Obscure Black Hole Growth Via Spectral Energy Distribution Modeling, Randall K. Chan

Honors Theses

An active galactic nucleus (AGN) occurs when the supermassive black hole at the center of the galaxy starts to grow. We still currently do not know what triggers AGN. Theories suggest that galaxy mergers could trigger AGNs, but past research has not been able to find a correlation between x-ray detected AGNs and disturbed galaxies. The present research looks specifically at AGN not detected in the x-ray, or obscured AGN. Using a newly updated IDL code, FAST, we were able to identify potential obscured AGN through spectral energy distribution (SED) modeling. We found a total of 526 obscured AGN in …

Primes In Arithmetical Progression, Edward C. Wessel

Honors Theses

This thesis will tackle Dirichlet’s Theorem on Primes in Arithmetical Progressions. The majority of information that follows below will stem from Tom M. Apostol’s Introduction to Analytical Number Theory. This is the main source of all definitions, theorems, and method. However, I would like to assure the reader that prior knowledge of neither the text nor analytical number theory in general is needed to understand the result. A rough background in Abstract Algebra and a moderate grasp on Complex and Real Analysis are more than sufficient. In fact, my project’s intent is to introduce Dirichlet’s ideas to the mathematics student …

Car Image Classification Using Deep Neural Networks, Mingchen Li

Honors Theses

Image classification is widely used in many fields of study. Deep neural networks are proven to be effective classifier structure due to its massive parameters and training capability. This paper outlines the development of Deep Neural Network in recent years and applied them on a Car image data set in order to compare their performances.

Detecting Cyanobacteria Toxins: The Human Health Impact Of An Environmental Problem, Lillian E. Naimie

Honors Theses

Cyanobacteria blooms are a growing concern in the world, as they can form a dense and sometimes toxin scum on water bodies. This paper will outline and discuss the environmental conditions that produce cyanobacteria bloom with a focus on the toxins produced by blooms and specifically the detection of these toxins through two analytical methods. Of the various toxins cyanobacteria are capable of producing, this paper will focus on microcystins and BMAA, a family of hepatotoxins and a specific neurotoxin respectively. The two analytical methods discussed are liquid chromatography coupled mass spectrometry and ELISA kit techniques. The advantages and drawbacks …

A Reciprocal Reaction: The Ussr Chemical Weapons Program And Its Influence On Soviet Society Through Three Civilian Groups, Yun Zhang

Honors Theses

Since its first mass application in 1915, chemical weapons (CW) have tolled thousands of lives both on and off the battle field. The USSR, despite its weak industrial basis and a late-starter in the field of chemical weaponry, held the largest stockpile of CW by the conclusion of the twentieth century. While the military and political implications of the USSR CW stockpiles have been relatively well-studied, its domestic and internal effect also deserve thorough investigations. Through diaries, letters, and memoirs of the USSR civilians who had suffered from, worked for, and/or supported the CW program, this research looked into the …

Development Of A Chemical Genetic Screen To Identify Compounds That Enhance Laromustine Cytotoxicity, Xiaoou Wang

Honors Theses

Laromustine is a chemotherapeutic sulfonylhydrazine prodrug used in clinical trials against acute myeloid leukemia. Though laromustine showed some success in clinical trials, more experiments are needed to understand the hematological toxicity and the molecular mechanisms of patients’ resistance. This project aims to develop a strategy to identify compounds synergistic with laromustine in cultured leukemia cells from a library of 450 FDA-approved compounds through a forward chemical genetic screen. To optimize the screen, the cell seeding density, doubling time, and dose response curves were determined. The optimized concentration of HL60 cells in these experiments was determined to be between 25,000 and …

The New White Moderate: Bearing Witness To The Differend Of Race, Ethan T. Ashley

Honors Theses

As Frantz Fanon demonstrates in his text, Black Skin, White Masks, Sartrean existentialism fails to account for differences in racialized existence. Quite simply, the notion that “existence precedes essence” is reversed in the case of the black subject; he/she is living in a world that has rendered the black subject subservient to a predetermined essence. Ultimately, the fact that the white subject exists and may freely determine his/her essence while the black subject may not further demonstrates this gap or a chasm between black and white subjects that calls for further examination. In the first chapter, I will use …

Tracking The Endangered Northern Black Racer, Coluber Constrictor Constrictor, In Maine To Determine Areas Of Conservation Importance, Josiah Johnson

Honors Theses

The Black Racer (Coluber constrictor) is a large-bodied snake species found across North America. One subspecies, the Northern Black Racer (C. constrictor constrictor) is listed as endangered in Maine because of its restricted range in York County. Racers have generally been found to prefer open habitats and ecotones, but the specific habitat preferences of racers in Maine is unknown, hindering efforts to preserve habitat for racer conservation. To address this knowledge gap, the Maine Department of Inland Fisheries and Wildlife (MDIFW) has an ongoing project tracking black racer movements in Sanford and Kennebunk, Maine, and I had the opportunity to …

Electoral Dysfunction: Assessing State Electoral Laws And Turnout In Presidential Elections, Ellie S. Krossa

Honors Theses

Due to the United States’ shockingly low turnout in comparison to other Western democracies, many states around the country have enacted laws to increase the number of people who participate in presidential elections. Scholars have found mixed results when testing the effects of specific electoral reforms in individual states, but few have looked at comprehensive models to test the overall effects of these reforms on turnout. This thesis examines the ways in which electoral reforms across all fifty states have led to increases or decreases of turnout in presidential elections. It utilizes a comprehensive longitudinal model accounting for electoral reform …

The Enbridge Line 3 Replacement Pipeline: Attitudes, Symbolism, And Geography, Catherine W. Fraser

Honors Theses

Oil pipelines, such as the Keystone XL and Dakota Access pipelines, are increasingly controversial and contested in the United States. Since its proposal in 2015, the Enbridge Line 3 Replacement (L3R) pipeline in Minnesota has also generated considerable debate. People who support and oppose oil pipeline projects are influenced by their ideologies, core values, partisan learnings, age, identity, and place attachment, as well as their proximity to new energy projects. However, the ability of any one variable, like spatial proximity or age, to predict attitudes towards new energy projects is debated. I conducted a literature review on attitudes towards energy …

We're Having A Moment, Sophia Pelosi

Honors Theses

Hi.

Thank you for being here, for reading this. Given that you’re here, I assume that you are a close friend, or a thesis advisor, or a relative, or maybe some nosy peer who just happened upon it, and found themselves curious. No judgement. I get it. I’d probably do the same to you, if it were your thesis, your heart, your soul, your memories on the page.

I wrote this because I wanted to. I wrote this because I knew it would be special for me, to get to unabashedly care about my writing and want to make it …

The Impacts Of Discrimination On Mental And Physical Health, Mahal Alvarez-Backus

Honors Theses

The present studies investigated the role of campus climate and discrimination on college students’ mental and physical health. Young adults completed measures that assessed their perceptions of campus climate, sense of belonging, depressive symptoms, anxiety levels, sleep quality, physical health symptoms, and experiences with discrimination. Despite the fact that there were not any differences in physical health or sleep quality, there were significant differences in phycological health, specifically with depressive symptoms. Across both studies, there were significant group differences in mental health, particularly that students of color reported higher levels of depressive symptoms than white students. Having empathetic faculty was …

Asian Jumping Worm (Megascolecidae) Impacts On Physical And Biological Characteristics Of Turfgrass Ecosystems, Ella L. Maddi

Honors Theses

Asian Jumping worms (Megascolecid spp) were introduced to North America in the early 1900s and have been altering soils in forest ecosystems as they spread throughout the continent. The worms differ from other introduced earthworms in their ability to consume large densities of organic material and potentially alter nutrient cycling in the ecosystems that they invade (Greiner et al. 2012). This study examined if and how Asian jumping worms alter turfgrass systems by changing the biological or physical properties of soil. To do this we conducted a mesocosm experiment and observational field study. For the mesocosm study we inoculated boxes …

A Rethinking Of Gray Asexuality: What Do We Learn From An Undefinable Identity?, Jason M. Gurevitch

Honors Theses

Gray-Asexuality offers us a paradox in understanding sexuality, since while it is posed as a middle ground between Asexual and Allosexual, it is also solidly a category of Asexuality. This poses the question of when does someone become Asexual and if they are ever interested in sex why are they not just Allosexual? While understandings of Asexuality that have excluded the Gray-Asexuality can ignore this question, including it requires asking this question, which not only requires defining Asexuality, but also more importantly requires a naming of what normative sexuality is. Within these contexts people who are Gray-Asexual engage in a …