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Articles 8731 - 8760 of 12182
Full-Text Articles in Entire DC Network
Capuchin Monkeys (Cebus Apella) Fail To Be Equitable In An Ultimatum Game, Mackenzie Florence Smith
Capuchin Monkeys (Cebus Apella) Fail To Be Equitable In An Ultimatum Game, Mackenzie Florence Smith
Honors Theses
The ultimatum game is a commonly used economics game testing humans' sense of fairness. In the game, a "proposer" is given a sum of money and is told they can split it however they want with another human partner. The partner can then either accept the division and both proposer and responder receive the proposed amounts, or the responder can reject the offer and neither player will get anything. Human subjects from most western cultures typically share almost half of an allotted amount, but it remains unknown whether our close primate relatives share this generosity. Recent attempts to present chimpanzees …
Formyl Group Activation Of Bromopyrrole Suzuki Cross-Coupling: Application To A Formal Synthesis Of Lamellarin G Trimethyl Ether, Andrew Harrison
Formyl Group Activation Of Bromopyrrole Suzuki Cross-Coupling: Application To A Formal Synthesis Of Lamellarin G Trimethyl Ether, Andrew Harrison
Honors Theses
Many biologically interesting compounds have been isolated from marine natural products, many of which contain characteristic pyrroles. Compounds such as polycitones, storniamides, ningalins, and lamellarins have been of particular interest for synthesis due to their vast pharmaceutical potential including the ability to fight tumors as well as induce cytolysis of drug resistant cancer cell lines. Previous studies on the synthesis of Lamellarin G trimethyl ether by the Gupton Group have relied upon vinylogous amide derivatives as building blocks.2 A new pathway utilizing a formylated pyrrole ring provides an interesting method for the synthesis of Lamellarin G trimethyl ether. Regioselective Suzuki …
Failures Of Chivalry And Love In Chretien De Troyes, Adele Priestley
Failures Of Chivalry And Love In Chretien De Troyes, Adele Priestley
Honors Theses
Although chivalry and courtly love have been imposed upon society as a framework for social interaction, Chrétien’s five stories ultimately promote the idea that the individual is top priority, and when involved in courtly love and chivalry each person should remember that they are using these ideals simply as a way to promote themselves.
Beyond Our Conscience: A Proposal For An Improved Model Of Self-Forgiveness, Kelsey M. Park
Beyond Our Conscience: A Proposal For An Improved Model Of Self-Forgiveness, Kelsey M. Park
Honors Theses
The common saying forgive and forget does not do justice to the deep understanding we can gain of ourselves and of others by pursing genuine forgiveness. Philosophers Charles Griswold and Margaret Holmgren propose two models of forgiveness that differ in terms of how we should view our humanity. Griswold suggests that the foundation of genuine forgiveness is recognizing that we are all fallible human beings while Holmgren suggests that our being human makes us all worthy of respect. Both Griswold and Holmgren focus primarily on cases of interpersonal forgiveness and give significantly less attention to cases of self-forgiveness. The lack …
Awareness, Agency, And Alternatives: Opportunities And Challenges For Conamuri And The Paraguayan Women’S Food Sovereignty Movement In An Age Of Social Media, Brianne Illich
Honors Theses
This thesis examines the influence and limitations of the use of social media by the Paraguayan female food sovereignty movement. Considering the Paraguayan campesino context of censorship and marginalization, it analyzes social media’s role as an alternative news source, a space for self-expression, and a vehicle for interactive engagement, outreach, and resistance. It focuses specifically on the experiences within CONAMURI, a Paraguayan women’s food sovereignty network. The study sheds light on the CONAMURI female campesino context, giving voice to the personal experiences, challenges, aspirations, and activities that make up everyday organizational resistance and motivate social media mobilization. Overall, this thesis …
La Puerta A Europa: Percepciones De La Inmigración En Andalucía, Kristin Glasheen
La Puerta A Europa: Percepciones De La Inmigración En Andalucía, Kristin Glasheen
Honors Theses
A lo largo de los últimos veinte años, España ha experimentado un incremento tremendo de inmigración, lo que ha contribuido a nombrar España “la puerta a Europa.” Esta tesis examinará la inmigración contemporánea, particularmente en la comunidad autónoma de Andalucía, y el impacto de factores como identidad nacional y regional, género y la actual crisis económica en las percepciones que tienen los españoles de la inmigración. El análisis se basa tanto en entrevistas personales con directores de varias organizaciones no gubernamentales en las ciudades de Córdoba, Sevilla y Almería como en obras literarias y cinemáticas.
The Fluvial Sequence Of A Latest Changhsingian, Pre-Pt Extinction River Complex, Eastern Cape Province, South Africa, Tara Chizinski
The Fluvial Sequence Of A Latest Changhsingian, Pre-Pt Extinction River Complex, Eastern Cape Province, South Africa, Tara Chizinski
Honors Theses
The Permian–Triassic mass extinction, dated between 251.941 ± 0.037 and 251.880 ± 0.0371 Ma, is well documented in the marine record, but details of the event on land are still ambiguous and widely debated within the scientific community. This project focuses on the stratigraphic record leading up to the PT boundary at one of the critical sections in the Karoo Basin of South Africa, Wapadsberg Pass. A transition in river styles is reported to have occurred across the landscape from meandering Permian sandstone-dominated channels to Triassic braided complexes. This transition can be recorded by architectural elements, which reflect sensitive variations …
Optimization Of A Chemical Genetic Screen To Identify Druggable Targets In U138 Cells Treated With Laromustine, Kathryn Coe
Optimization Of A Chemical Genetic Screen To Identify Druggable Targets In U138 Cells Treated With Laromustine, Kathryn Coe
Honors Theses
Laromustine is an experimental sulfonylhydrazine prodrug used in late-stage clinical studies against acute myeloid leukemia (AML) and glioblastoma multiforme (GBM). Despite initial promise for both indications, clinical trials for GBM have not been as successful as those for AML. To investigate methods for improving the effectiveness of laromustine in GBM and to learn more about the mechanism of action of laromustine, a chemical genetic screen will be conducted to identify agents that sensitize GBM cells to the anti-proliferative effects of laromustine. The library, which will include approximately 450 FDA-approved drugs, will be screened using a newly optimized high throughput assay …
Variations In Intra- And Interspecific Response To Mobbing Calls By The Black-Capped Chickadee (Poecile Atricapillus), Katerina M. Faust
Variations In Intra- And Interspecific Response To Mobbing Calls By The Black-Capped Chickadee (Poecile Atricapillus), Katerina M. Faust
Honors Theses
Mobbing calls are produced by a variety of bird species in response to predator sightings. These mobbing calls often function in intraspecific recruitment, but have recently been shown to have an interspecific response component as well. The mobbing calls produced by the Black-capped Chickadee (Poecile atricapillus) are distinct and encode information about the threat level of the predator. Conservation biologists often use playbacks of chickadee mobbing calls to detect species of birds and numbers of individuals in an area with higher accuracy than counts conducted without the use of playbacks. In this study, the factors that could potentially …
Influence Of The Sea Surface Microlayer On Ozone Deposition Velocity, Kathryn Moore
Influence Of The Sea Surface Microlayer On Ozone Deposition Velocity, Kathryn Moore
Honors Theses
The biogeochemical cycles of both iodine and ozone are strongly linked to human health and global climate and are tightly coupled through chemical processes occurring in the surface ocean and troposphere. The concentration and distribution of these compounds have the potential to drive the oxidizing capacity and suite of chemical reactions occurring in the marine boundary layer. However, modeling coupled ocean-atmosphere systems involving them is challenging because of a limited understanding of the magnitude and dominant mechanisms controlling the fluxes of both species, in addition to temporally and spatially heterogeneous distributions of ozone and iodine in the sea surface and …
Quantumness And Coherence In Photosynthesis, Brian Doolittle
Quantumness And Coherence In Photosynthesis, Brian Doolittle
Honors Theses
Long-lived oscillations lasting up to 1800 fs have been observed in the Fenna--Mathews--Olsen (FMO) Pigment-Protein complex. It is unclear if the oscillations are quantum or classical in origin. Quantized intra-pigment normal modes are responsible for these long-lived oscillations. In this thesis we simulate a bacteriachlorophyll dimer in the FMO Complex at physiological conditions. Our model describes two electronically coupled pigments coupled to the vibrational protein environment. Our goal is to find system parameters that allow long-lived quantum coherences to exist in photosynthetic complexes. We calculate the time evolution of our system's density matrix using the numerically exact quantum adiabatic path …
The Role Of Underutilized Fish In New England's Seafood System, Taylor Witkin
The Role Of Underutilized Fish In New England's Seafood System, Taylor Witkin
Honors Theses
The global fisheries crisis has led to an increasing recognition for the need to relieve pressure on overfished, popular food fish stocks. Opportunities exist to shift consumer demand toward more sustainable choices, including fish that may be locally abundant. Attempts have been made to market underused fish (sometimes termed “trash fish”) that represent more sustainable alternatives; however, it is unclear whether consumers will choose to purchase these more sustainable options, particularly if underused fish are also unfamiliar. Chapter 1 reviews existing research and current issues surrounding sustainable seafood and the recent shift toward local, abundant, undervalued species in New England’s …
Borderline Depravity: The Impact Of U.S. Immigration Policy On Human Smuggling At The Mexican Border, Chloe J. Gilroy
Borderline Depravity: The Impact Of U.S. Immigration Policy On Human Smuggling At The Mexican Border, Chloe J. Gilroy
Honors Theses
Human smuggling at the southwest border has undergone a series of dramatic changes following the advent of militarized enforcement after 9/11. These changes have culminated in drug cartels becoming involved in the market for human smuggling as service providers. This role constitutes a massive departure from the traditional working dynamics of the market, and has created a human rights crisis with far-reaching implications. Accordingly, this thesis attempts to answer the following questions: Why are Mexican drug cartels entering into human smuggling? What part has U.S immigration policy had in incentivizing their involvement? When did their involvement begin? To answer these …
Deformation Mechanisms In The Metasedimentary Rocks Within The Kellyland Fault Zone, Washington County, Maine, Morgan E. Monz
Deformation Mechanisms In The Metasedimentary Rocks Within The Kellyland Fault Zone, Washington County, Maine, Morgan E. Monz
Honors Theses
This study focuses on a high-strain, strike-slip shear zone that juxtaposed metasedimentary rocks and a homogenous granite near the brittle-ductile transition, at a depth of 15-20 km. The metasedimentary rocks of the Flume Ridge Formation (FRF) exhibit a progressive deformation gradient of phase mixing and increasing fabric intensity across strike, northwest-to-southeast, approaching the center of the shear zone. Deformation mechanisms were controlled by metasomatic reactions in a fluid-rich fault zone. During deformation, biotite and potassium feldspar in the metasedimentary rocks reacted to form phengite—a much weaker phase. The nucleation and growth of weak phases, combined with phase mixing, decreased the …
Feminicidios En Cd. Juárez: Sombras Del Evanescente Olvido; Luces De Lucha, Fuerza Y Resistencia, Amber Ramirez
Feminicidios En Cd. Juárez: Sombras Del Evanescente Olvido; Luces De Lucha, Fuerza Y Resistencia, Amber Ramirez
Honors Theses
Desde principios de los años noventa, mujeres y niñas en Cd. Juárez, Chihuahua, México han sido raptadas de día y de noche mientras se dirigen al trabajo, a sus casas, o a la escuela. Después de días, semanas y a veces hasta años, muchas han sido encontradas brutalmente asesinadas, calcinadas, mutiladas, violadas y torturadas; sus cuerpos han sido abandonados para luego ser localizados completamente desnudos o parcialmente vestidos, en completo estado de descomposición o solamente en huesos en las calles en las zonas desérticas de Cd. Juárez. El paradero de muchas otras mujeres y niñas aún se desconoce y a …
The Relationships Between Local Food And Food Security In Maine, Erin Love
The Relationships Between Local Food And Food Security In Maine, Erin Love
Honors Theses
There is a food systems paradox in Maine: the State has one of the highest levels of food insecurity in the nation, while simultaneously experiencing a local agriculture boom. Maine has some of the largest percentages of young farmers and women farmers in the country and is home to the second highest number of artisan cheese makers of any state in the country. Amidst this exciting, sometimes quirky, agricultural activity there is a critical need for food systems development in the state, especially in the context of serving vulnerable populations. This thesis explores the ways in which Mainers are working …
Illusion Of Control: The Struggle For History And Humanity, Samantha R. Nystrom
Illusion Of Control: The Struggle For History And Humanity, Samantha R. Nystrom
Honors Theses
Through the increased amount of documentation occurring in the individual’s everyday life, through the government, through social media, etc., the question of history’s place in contemporary culture arises—who is the author of history, how is the struggle over authorship played out within contemporary literature, and where does humanity fit within this struggle? I argue that the struggle for authorship within contemporary society has suspended history. Contending authors constantly rewrite the pre-narrative, the event history records, prohibiting society from moving forward. Whoever gains the ultimate authorial role, whoever becomes the author of history, controls humanity. To examine this occurrence within contemporary …
The Effect Of Azo Textile Dyes On Gross Primary Production And Community Respiration In An Artificial Environment, Theresa L. Petzoldt
The Effect Of Azo Textile Dyes On Gross Primary Production And Community Respiration In An Artificial Environment, Theresa L. Petzoldt
Honors Theses
Azo dyes are the largest category of textile dyes in production today, with over 100,000 tons of dye produced yearly in the United States. Ten to fifty percent of this dye is not fixed to the fabric during the textile production process, and is therefore discarded as effluent. Because dye waste is difficult to process in wastewater treatment facilities, it is important to understand how this waste affects aquatic systems using a whole ecosystem approach. This study used an artificial stream to model the effects of four azo dyes on benthic biofilm production and respiration. Dyes were found to have …
The Impact Of Dams On Nitrogen Cycling In The Messalonskee Stream, Rebecca K. Forgrave
The Impact Of Dams On Nitrogen Cycling In The Messalonskee Stream, Rebecca K. Forgrave
Honors Theses
The Messalonskee Stream in central Maine has five hydroelectric dams on 16.6km. Each dam drastically changes the flow regime of the stream, dividing it into segments with different patterns of sediment settling and organic matter retention. I investigated how these disruptions impact nitrogen cycling, specifically nitrification rates above and below each dam. I expected higher nitrification rates above the dams, where levels of organic matter are higher, and lower rates below the dam where scouring removes organic matter and fine sediment from the streambed. I measured sediment nitrification rates with a nitrapyrin-inhibition assay and potential drivers of nitrification including sediment …
A New Balance: National Security And Privacy In A Post 9-11 World, Russell B. Wilson
A New Balance: National Security And Privacy In A Post 9-11 World, Russell B. Wilson
Honors Theses
The terrorist attacks on September 11, 2001 shocked the American security apparatus, placing greater pressure on the security actions of the U.S. government, particularly regarding information gathering. Laying out a framework that examines different notions of national security and privacy, this paper examine three case studies to illustrate the role of the government and the inherent friction between privacy and security that increased information gathering inherently creates. The shifting balance between the two variables forces us to reexamine how we want our government to protect us and what we will sacrifice in order to ensure our own well being. With …
Moon Jellies, Christina Garbarino
The Talbot Effect, Malia Kawamura
The Talbot Effect, Malia Kawamura
Honors Theses
The goal of this project is to experimentally investigate the optical Talbot effect and the electron Talbot effect. The Talbot effect is a near-field diffraction effect which occurs when plane waves are incident upon a grating. The Talbot effect creates full grating revivals at integral Talbot lengths and revivals with greater spatial periodicity at fractional Talbot lengths. We use a green helium neon laser and Ronchi rulings to take CCD camera images of the fractional Talbot revivals directly. Additionally, a photodiode records light intensity as a function of time as a second identical grating is moved to verify the presence …
The Economic Impact Of Shale Gas Development: A Natural Experiment Along The New York And Pennsylvania Border, Brendan Cosgrove
The Economic Impact Of Shale Gas Development: A Natural Experiment Along The New York And Pennsylvania Border, Brendan Cosgrove
Honors Theses
In the United States, the rapid increase in shale gas production has recently stimulated local economies. This paper investigates the regional economic impact of shale gas development. The border of New York and Pennsylvania provides a natural experiment for its economic impact because of the moratorium on fracking in NY and the supportive fracking regulations in PA. Using BLS data from 2001-2013, results show that shale gas development has a statistically significant impact at the industry level, but not across the entire economy. The findings contribute new evidence to the economic benefits and the boom-bust cycle of shale gas extraction.
The Chinese Social Enterprise: A Global Phenomenon With Chinese Characteristics, Amanda Jingtong O'Malley
The Chinese Social Enterprise: A Global Phenomenon With Chinese Characteristics, Amanda Jingtong O'Malley
Honors Theses
Social entrepreneurship, a concept that integrates business strategies with achieving social goals, is gaining traction in China. However, it is a distinctly Chinese variant of an approach exported by Western entrepreneurs. The purpose of this thesis to is analyze the Chinese social enterprise by identifying China’s socioeconomic and political forces that create the unique environment in which this trend is taking root. By examining how these factors are changing in China’s progressively more market economy, I conclude that key characteristics of the Chinese social enterprise are also shifting in response—moving from a civil society- originated model to a market‐based social …
In Search Of Murmurings (Full Score), Luke Martin
In Search Of Murmurings (Full Score), Luke Martin
Honors Theses
"In Search of Murmurings" is deeply indebted to my reading of Marcel Proust's Swann's Way and explores his concept of recombining lost memories in the liminal space of our inner selves. Certain moments in the piece act as aural triggers for memory eruptions into my lost and fragmented experience of past composers' works. As much as this piece is an exploration of Proust, it is also an exploration of myself. By following these memory eruptions, I am departing from the convention, expected, and narrative path; I am asking: what happens when I allow the illogical and non-linear to take control?
Deformation Mechanisms In Mylonites At Fletcher Peak, Washington County, Me, Ariana S. Boyd
Deformation Mechanisms In Mylonites At Fletcher Peak, Washington County, Me, Ariana S. Boyd
Honors Theses
Mylonite formation and development is dependent on a number of factors including temperature, strain rate, and fluid fugacity. All three factors affect flow stress and viscosity; thus, a variance in each will affect the development of mylonites. This study focuses on factors leading to the formation of mylonite surrounded by ultramylonite of the same protolith, along-strike to one another at the center of a fault zone. The rocks in question are from the Deblois granite cut by the Kellyland fault zone, a ductile strike-slip fault zone within the larger Norumbega fault system in eastern Maine. The Deblois granite as a …
Host-Specialization Of Bartonella In Flea Vectors Collected From Black-Tailed Prairie Dogs, Mark D. Massaro
Host-Specialization Of Bartonella In Flea Vectors Collected From Black-Tailed Prairie Dogs, Mark D. Massaro
Honors Theses
At least 22 species of Bartonella bacteria have been named and many are associated with one of a list of potential mammalian reservoirs and arthropod vectors. One example of such a system is the parasitism of black-tailed prairie dogs (Cynomys ludovicianus) of the Western U.S. by Oropyslla hirsuta and Pulex simulans fleas. These vectors are thought to maintain B. washoensis infection in these mammals, but little is known about their role in the specialization of this strain to this reservoir. We found that the more specialist O. hirsuta fleas were much more likely to be infected with B. washoensis than …
Statistical Analysis Of The Variability And Reliability Of Eye-Tracking Test In Measuring Mild Traumatic Brain Injury, Xi He
Honors Theses
Saccadic eye-tracking tests have been advocated as a useful tool to distinguish mTBI patients from healthy people. However, intra-individual variances sometimes interfere with the interpretation of eye-tracking results, especially in experiments when group size is restricted. This study analyzes eye-tracking results of 14 mTBI patients taking the test twice with no medical administration in between. Using more accurate models to fit each individual's result, variables such as asymptote (of the fit functions) and hypothetical values for peak velocity, peak acceleration, and duration are derived for variability analysis. We conclude that the asymptotes for peak velocity and peak acceleration are the …
The Effect Of Race In Primary And Secondary School Achievement : Evidence From Virginia, Khanh Doan
The Effect Of Race In Primary And Secondary School Achievement : Evidence From Virginia, Khanh Doan
Honors Theses
A large body of literature has studied the achievement gap between white and minority groups in the United States. This paper contributes to this discussion by conducting a cross-sectional study of Virginia using data for 2011-2012. I analyze the impact of race/ethnicity (White, Black, Hispanic) on school district pass rates conditional on income per capita, population density, and a cohort effect in each school district. I find that the magnitude of the gap is largest in 3rd grade and smallest in 5th grade. There are little differences between Black-White gaps and Hispanic-White gaps. The gaps are neither widening nor narrowing …
The Case Of "Who's Looney Now?" : Psychologists, Psychiatrists, The Public, And Contested Notions Of Insanity In Turn-Of-The-Twentieth Century America, Amanda Lynn Haislip
The Case Of "Who's Looney Now?" : Psychologists, Psychiatrists, The Public, And Contested Notions Of Insanity In Turn-Of-The-Twentieth Century America, Amanda Lynn Haislip
Honors Theses
No doubt, “eccentric” is one word that describes John Armstrong Chaloner, a lawyer, entrepreneur, anti-Spiritualist, “scientific” medium, millionaire heir to the fur-trading fortune of John Jacob Astor, and, at one point, an incurably insane paranoiac. After he married and amicably divorced the Virginian novelist Amélie Rives, in 1888 and 1895 respectively, Chaloner discovered he could communicate with his subconscious, his “X-Faculty” as he named it, using a planchette, an early form of a Ouija board. He claimed to have changed his own eye color from brown to grey using this strange X-Faculty and boasted about winning $600 off of a …