Digital Commons Network^™

Effects Of Pre-Tests And Feedback On Performance Outcomes In Massive Open Online Courses:What Works And What Doesn’T?, Maria Janelli

Dissertations, Theses, and Capstone Projects

This experimental study examined the effects of pre-tests and feedback on learning outcomes in a five-week massive open online course (MOOC). The participants (N = 399) were adults from around the world who self-enrolled in the American Museum of Natural History’s (AMNH) climate change MOOC (called Our Earth’s Future) offered on the Coursera platform. Participants were randomly assigned to one of four conditions. Learners in the first treatment group took pre-tests without receiving feedback. Learners in the second treatment group took pre-tests and received basic (correct/incorrect) feedback. Learners in the third treatment group took pre-tests and received elaborate feedback. The …

The Distribution, Fractionation, And Application Of The 210po/210pb System: Insights From Three Geotraces Transects, Yi Tang

Dissertations, Theses, and Capstone Projects

The sinking flux of particles is an important pathway for the removal of carbon and other elements from the surface ocean via the biological pump. The ²¹⁰Po/²¹⁰Pb disequilibrium method can be used to study particle export at high spatial resolution over the time scale of months. The distribution of ²¹⁰Po and ²¹⁰Pb activity was measured during two GEOTRACES transects of the North Atlantic and one GEOTRACES transect of the eastern tropical South Pacific. This dissertation aimed to advance the knowledge and improve methods of the application of the ²¹⁰Po/²¹⁰Pb pair to quantify …

Cue-Based Reflexive Reference Resolution: Evidence From Korean Reflexive Caki, Namseok Yong

Dissertations, Theses, and Capstone Projects

This dissertation aims to reveal cognitive mechanisms and factors that underlie the reflexive dependency formation. In recent years, a lot of attention has been paid to the question of how our mind works in building linguistic dependencies (including an antecedent-reflexive dependency) because relevant research has proved promising and illuminating in regard to the properties (e.g., system architecture, computational algorithms, etc.) of human language processor and its close connection with other cognitive functions such as memory (Lewis & Vasishth, 2005; Lewis, Vasishth, & Van Dyke, 2006; McElree, 2000; McElree, Foraker, & Dyer, 2003; Van Dyke & Johns, 2012; Wagers, Lau, & …

Promoting Inclusion In A "Struggling School": Supporting Co-Teachers Through Critical Appreciative-Inquiry Based Professional Development, Louis Olander

Dissertations, Theses, and Capstone Projects

This dissertation explores the extent to which the beliefs and practices of teachers who work in a “struggling” school can be shifted towards inclusiveness through an action research based professional development program. The school was struggling in that it was charged with the education of children who are marginalized by a range of social forces while simultaneously accountable to institutional priorities. Broadly speaking, these institutional priorities preferred behaviorist punishment and technocratic approaches to meeting student needs, devaluing and decontextualizing students’ proficiencies as test scores and special education labels, in turn impeding inclusive change. Over the course of four months, an …

Employment Duration And Attrition Of Federal And State Inspectors General In The United States, Frank Chen

Dissertations, Theses, and Capstone Projects

A recent report by the United States Government Accountability Office (GAO) on inspector general (IG) attrition found growing rates of IG vacancies within federal Offices of Inspectors General (OIGs) (Johnson, 2018). This study identified the growing rates of Acting IGs (AIGs) and their role as interim IGs negatively affect their offices, decreasing productivity, and increasing difficulty in meeting quality inspection and oversight standards. This dissertation identified and analyzed rates of IG employment duration and attrition in federal and state offices of inspectors general (OIG) between 2001 and 2017, starting with a comprehensive review on IG literature and their responsibilities. A …

Black Women At Work In Corrections In The Era Of Mass Incarceration: Documenting Demographic Changes In The New York City Department Of Correction, Carolyn Fisher

Dissertations, Theses, and Capstone Projects

Recent work has popularized the idea that mass incarceration arose in the wake of the civil rights movement to maintain the social and economic subordination of African Americans previously enforced under Jim Crow. This discussion has not accounted for the many black Americans working in corrections, particularly in large metropolitan jail systems. This paper documents the increase in black women working as correction officers and administrators in the New York City Department of Correction since the late 1970s and explores the implications of this growth on the strict racial argument about mass incarceration. Using administrative and archival sources, it argues …

Restoring Solidarity: "Accountability" In Radical Leftist Subcultures, Sarah M. Hanks

Dissertations, Theses, and Capstone Projects

In radical left activist subcultures, ‘accountability processes’ are a form of DIY transformative justice dealing with abuse and sexual assault, focusing on the needs of the ‘survivor’ and transformation of the ‘perpetrator.’ Within activism identifying abuse is particularly difficult because it means acknowledging abuse by a person considered politically virtuous. The specifics of a process are situational and provisional. The overwhelming pattern is male identified people abusing female identified, gender non-binary, and transgender people. My research examines why activists are developing processes to address problems and whether or not they are successful.

Within the subculture, the topic is important enough …

Same-Sex Union Formation And Dissolution In The United States And Europe, Eric Ketcham

Dissertations, Theses, and Capstone Projects

Despite recent improvements in the availability of data on same-sex union formation and dissolution, the field remains understudied. Recent findings on the stability of same-sex unions in the United States and in Europe are inconsistent both within and between countries. Using three data sets – How Couples Meet and Stay Together, the Generations and Gender Survey, and the Longitudinal Internet Studies for the Social sciences surveys – event-history analyses are conducted to examine the stability of same-sex unions relative to male-female unions in the United States and continental Europe. The availability of partners for LGBT-identified males and females in eighteen …

Tonicizations, Periods, And Period-Like Structures In The Music Of Dvořák, Xieyi Zhang

Dissertations, Theses, and Capstone Projects

Discussions of the tonal construction of parallel periods usually focus on the standard eighteenth-century layout in which the cadence at the end of the antecedent is either an imperfect authentic cadence (IAC) or half cadence (HC) in the main key. In exceptional cases, antecedents may deploy a reinterpreted HC—i.e., a perfect authentic cadence (PAC) in V that is reinterpreted as a tonic-key HC. Especially in music of the nineteenth century, however, one also often finds periods in which the antecedent concludes with a PAC in a key other than V. In these modulating antecedents, cadences of the antecedent and consequent …

Visual Entrainment Of Perception-Related Neural Oscillations As A Mechanism For Maintaining Rhythmic Temporal Expectations Across A Wide Range Of Frequencies, Michael James Gray

Dissertations, Theses, and Capstone Projects

Visual sensitivity fluctuates rhythmically, in-synch with ongoing, EEG-recorded neural oscillations across a wide range of frequencies (~1-25hz). Some recent work has suggested that these perception-related neural oscillations can be entrained by rhythmic visual stimulation. Evidence is also emerging that the entrainment of ongoing oscillations in visual and auditory cortices is involved in rhythmic temporal expectations. In the introduction chapter, I attempt to bridge these bodies of literature and hypothesize that rhythmic visual stimuli automatically entrain ongoing, perception-related neural oscillations and that this mechanism supports the maintenance of rhythmic temporal expectations. Chapters 2 and 3 address this hypothesis from different angles. …

Dynamics Of The Family Lambda Tan Z^2, Santanu Nandi

Dissertations, Theses, and Capstone Projects

We prove some topological properties of the dynamical plane ($z$-plane) and a combinatorial structure of the parameter plane of a holomorphic family of meromorphic maps $\lambda \tan z^2$. In the dynamical plane, we prove that there is no Herman ring and the Julia set is a Cantor set for the map when the parameter is in the central capture component. Julia set is connected for the maps when the parameters are in other hyperbolic components. In the parameter plane, I prove that the capture components are simply connected and there are always four hyperbolic shell components attached to a virtual …

The Ferguson Effect In Contemporary Policing: Assessing Police Officer Willingness To Engage The Public, Christopher Mercado

Dissertations, Theses, and Capstone Projects

Researchers suggest that as public scrutiny and video recording of violent/tumultuous police encounters increase, police would back away from proactive enforcement, resulting in an increase in crime—the Ferguson Effect. Recent scholarship refined these concerns over police disengagement with the study of de-policing, while other scholars explored police self-legitimacy, in order to explain law enforcement behavior, given the immediacy and ubiquity of social media and digital communication. This study surveyed 792 law enforcement officers from 10 different police agencies in the United States, to ascertain if police officers’ personal and contextual characteristics influence their decision to either take enforcement action (i.e., …

Essays In Empirical Economics, Agustin Indaco

Dissertations, Theses, and Capstone Projects

This dissertation consists of two chapters that utilize distinct econometric methods and novel datasets.

In the first chapter, “From Twitter to GDP: Estimating Economic Activity From Social Media”, I collect all geo-located image tweets shared on Twitter in 2012-2013 to study whether the volume of tweets is a valid proxy for estimating current GDP in USD at the country level. My preferred model explains 94 percent of the cross-country variation and the residuals from the model are negatively correlated to a data quality index, indicating that my estimates of GDP are more accurate for countries with more reliable GDP data. …

Mentality And Fundamentality, Christopher D. Brown

Dissertations, Theses, and Capstone Projects

Extant well-considered problems with physicalism primarily come from two sources: philosophers of mind arguing that subjective experience does not fit into a physicalist world-picture, and metaphysicians trying to figure out the particular commitments of the view. I examine the thesis of physicalism in order to produce a clearer notion of the physical and to help straighten out physicalism’s entailments, while simultaneously providing a strategy for physicalists to sidestep well known anti-physicalist arguments concerning consciousness. This involves both a critical and a positive effort: on the critical side, I expose an issue with a popular way of understanding physicalism called “via …

Lead And Arsenic Contamination In Urban Soils In New York City, Anna Paltseva

Dissertations, Theses, and Capstone Projects

This dissertation examined total and bioaccessible soil lead (Pb) and arsenic (As) concentrations and their accumulation in commonly grown garden vegetables in New York City (NYC) metropolitan area. Direct oral ingestion of contaminated soil and consumption of plants that have accumulated Pb or As from underlying soil are known human exposure pathways in urban garden soils that often contain elevated levels of contaminants. The research had four components: (1) assessment of the variability of bioaccessible Pb in NYC urban soils; (2) field experiments to evaluate Pb stabilization and As mobilization by phosphate and alternative amendments; (3) development of a new …

A Volitional Theory Of Aesthetic Value, John Dyck

Dissertations, Theses, and Capstone Projects

In this dissertation, I defend a volitionalist theory of aesthetic value. The volitionalist theory is a species of response-based models of aesthetic value: It holds that aesthetic value is based in a kind of human response. Traditional response-based theories of aesthetic value hold that value is based in responses of cognition, perception, desire, or pleasure. The volitional theory offers a new response as the home of aesthetic value: the will. We find things beautiful, I argue, because we orient our selves towards them; we find things ugly, I argue, because we orient our selves against them. The volitionalist theory I …

Waiting: History, Fear, And Healing In Ballynafeigh / The Upper Ormeau Road Of Belfast, Northern Ireland, Molly J. Hurley-Depret

Dissertations, Theses, and Capstone Projects

Based on fourteen months of ethnographic fieldwork in one neighborhood of Belfast called Ballynafeigh / the upper Ormeau Road in 2006–2007, I argue we need to pay closer attention to the “inconspicuous transformations” that may have been occurring in parallel to the official peace process. Walter Benjamin notes that “refined and spiritual things” do “make their presence felt in the class struggle. They manifest themselves in this struggle as courage, humour, cunning, and fortitude.” Benjamin states that “the past strives to turn toward that sun which is rising in the sky of history. A historical materialist must be aware of …

Electrochemical Carbon Nanoprobes For Biological And Chemical System Studies, Keke Hu

Dissertations, Theses, and Capstone Projects

The progress in the field of nanoelectrochemistry requires preparation and characterization of nanometer scale electrochemical probes. The focus of my Ph.D. research was on development of carbon nanopipette-based electrodes with versatile and controllable geometry and their applications to nanoscale studies of chemical and biological systems. Carbon nanopipette (CNP) electrodes offer important advantages, including high sensitivity and improved analytical selectivity. They can serve as nanoreactors for sampling ultra-small solution volumes and studies of individual nanoparticles. CNPs were prepared by chemical vapor deposition (CVD) of carbon into the pre-pulled quartz capillaries. By changing pulling parameters and CVD conditions, we fabricated several types …

Privileges For Being Slaves: Christian Missionaries In The Early Qing Court, Litian Swen

Dissertations, Theses, and Capstone Projects

This dissertation works to elucidate the long-term confusion over the identity of the Christian fathers in the early Qing court. The identity for which this dissertation argues is straightforward: Christian fathers were identified by the Kangxi emperor as his family slaves. The master-slave relationship has long been overlooked because it was overshadowed by an overwhelming focus on the Jesuit Adam Schall, who entered the Manchu court as a Chinese-style minister.

Shifting the focus from Schall, this dissertation starts by showing two seldom mentioned Jesuits, Ludovico Buglio and Gabriel de Magalhaens, who entered into Manchu service as slaves. It was, this …

The Impact Of Racial Microaggressions And Major Discriminatory Events On Mental Health, Florence Lui

Dissertations, Theses, and Capstone Projects

The current study, a secondary data analysis, sought to determine the number and nature of latent groups for experiences of spectrum racial discrimination (i.e., both major and microaggressive racial discrimination) in a sample of emerging adults from a people of color (POC)-majority public university setting in the United States, and to understand the role of socio-demographic variables in defining each group. In addition, the study aimed to ascertain the extent to which endorsing spectrum racial discrimination experiences predicted anxiety and/or depression above the effects of general, non-race-related stress. Finally, the analyses gauged the mediating and/or moderating role of coping in …

Anxieties Of Incorporation: U.S. Territorialization And The Western Imaginary From The Louisiana Purchase To Moby-Dick, Diana Meckley

Dissertations, Theses, and Capstone Projects

Anxieties of Incorporation: U.S. Territorialization and the Western Imaginary from the Louisiana Purchase to Moby-Dick investigates the impact of territorial expansion on authorial constructions of the continental west during the first half of the nineteenth century. As both a geophysical reality or an imagined space, the west functions as a site in which American writers negotiated their ambivalence over the promises and perils of continental aggrandizement and global imperialism. This project examines representative texts by James Fenimore Cooper, Francis Parkman, Susan Shelby Magoffin, and Herman Melville. In so doing, this dissertation traces how the western imaginaries these Anglo-American authors fashioned …

Little Egypt: A Critical Biography, Katherine Vecchio

Dissertations, Theses, and Capstone Projects

Structured as a biography, this thesis investigates the origins of Little Egypt—a stage name assumed by multiple women performing either the danse du ventre or the hoochie-coochie—and considers the character’s cultural legacy. The work draws on nineteenth and twentieth century newspapers, advertisements, photographs, and official publications and archival records from the 1893 World’s Columbian Exposition. Chapter one takes a new look at the World’s Columbian Exposition in Chicago and shows how the presence of dancers performing the danse du ventre on the Midway Pliasance was turned into a flashpoint of controversy by the popular press. This controversy would be key …

Music And Jewish Practice In Contemporary Istanbul: Preserving Heritage, Bending Tradition, Joseph M. Alpar

Dissertations, Theses, and Capstone Projects

This dissertation is a study of ongoing transformations in the sacred musical repertoires practiced by ḥazzanim (synagogue cantors) and their synagogue congregations in Istanbul’s contemporary Jewish community. I argue that clergy and laypeople alike negotiate their religious identities as Turkish Jews in the musical choices they make. While many try to maintain the community’s local music tradition, rooted in makam—the Ottoman Turkish melodic system—others attempt to broaden their repertoire with musics from Israel, the United States, and Ḥabad Hasidic Judaism. I examine adjustments made to the musical components of ritual as responses to decades of Jewish religious life as …

Dermatoglyphic Measures In Relation To Depressive Symptoms Among Non-Clinical Adolescents And Young Adults, Yosefa A. Modiano

Dissertations, Theses, and Capstone Projects

Depressive disorders are highly prevalent and can be devastating. Increasingly, depressive symptomatology is understood from a dimensional perspective such that non- or sub-clinical presentations may share a similar etiology. Depression etiology is believed to include genetic and environmental factors that may contribute to underlying vulnerability (diathesis) by way of neurodevelopment. Birth cohort studies have provided empirical evidence of the relationship between prenatal insult and later experience of adverse outcomes, including increased risk for depressive disorders. Retrospective investigation of the possible influence of prenatal disturbance on later experience of depressive symptoms has methodological limitations. Dermatoglyphic measurements offer a more methodologically viable …

Minimalistic Peptide-Based Supramolecular Systems Relevant To The Chemical Origin Of Life, Daniela Kroiss

Dissertations, Theses, and Capstone Projects

All forms of life are based on biopolymers, which are made up of a selection of simple building blocks, such as amino acids, nucleotides, fatty acids and sugars. Their individual properties govern their interactions, giving rise to complex supramolecular structures with highly specialized functionality, including ligand recognition, catalysis and compartmentalization. In this thesis, we aim to answer the question whether short peptides could have acted as precursors of modern proteins during prebiotic evolution. Using a combination of experimental and computational techniques, we screened a large molecular search space for peptide sequences that are capable of forming supramolecular complexes with adenosine …

Essays On New Keynesian Term Premium Model With Financial Risks, Weiguo Fu

Dissertations, Theses, and Capstone Projects

This dissertation studies the modeling of U.S. Treasury (UST) yield curve term premia under the New Keynesian (NK) framework. Loosely speaking, term premium is the difference between a government bond’s yield for a specific tenor and the average of the expected short rates up to that tenor. The dissertation is divided into three chapters. The first chapter proposes a New Keynesianism-based macro-finance model estimated by a one-step full information maximum likelihood (FIML) method. The second chapter shows that the one-step FIML method may produce estimation biases, which result in biased expected short rates and term premia. The chapter then presents …

Anti-Cancer Effects Of Oleocanthal And Extra Virgin Olive Oil, Limor Goren

Dissertations, Theses, and Capstone Projects

Oleocanthal is a phenolic compound found in varying concentrations in extra virgin olive oil. Oleocanthal has been shown to be active physiologically, benefiting several diseased states by conferring anti-inflammatory and neuroprotective benefits. Recently, we and other groups have demonstrated its specific and selective toxicity toward cancer cells; however, the mechanism leading to cancer cell death is still disputed. The current study demonstrates that oleocanthal induced damage to cancer cells’ lysosomes leading to cellular toxicity in vitro. Non-cancer cells were significantly less affected. Lysosomal membrane permeabilization following oleocanthal treatment in various cell lines was assayed via three complementary methods. Additionally, …

Molecular Dynamics Simulations Of Supramolecular Assemblies In Biology And Bionanotechnology, Anjela Manandhar

Dissertations, Theses, and Capstone Projects

Molecular self-assembly is an energy driven process where randomly organized building blocks interact noncovalently to form highly organized supramolecular nanostructures. In biology, the cytoskeleton is a classic example of a dynamic self-assembly, forming long filamentous structures from monomeric protein subunits. Similarly, the self-assembly process is widely exploited in nanotechnology to build bio-functional nanostructures. In this work, we studied biological (microtubule) and synthetic (peptide drug amphiphile nanotube) self-assembled systems. We utilized long time-scale molecular dynamics simulation to investigate the structural and dynamical properties of these systems.

At the molecular level, the dynamic instability (random growth and shrinkage) of the microtubule (MT) …

Neurogenesis Is Altered Between And Across Brain Regions After Neurodegeneration And Injury, Alice Perez

Dissertations, Theses, and Capstone Projects

Adult neurogenesis is the addition of new neurons in the adult brain. In mammals, neurogenesis is largely restricted to the hippocampus and olfactory bulb, which underlie learning, memory, and olfaction. In songbirds, new neurons are incorporated into telencephalic regions that subserve the production, perception, and maintenance of song. Studies of the regulation of neurogenesis have exclusively focused on a single brain region and within a single hemisphere. Interestingly, it has yet to be investigated whether there are correlations between numbers of new neurons across regions and hemispheres within the same animal. Here we examined these differences in a rat model …

Assessment Of Third Wave Therapy Assumptions About The Relation Between Emotional Schemas And Psychoemotional Functioning, Emily Rachel Edwards

Dissertations, Theses, and Capstone Projects

Recent advancements in emotion theory propose that emotional schemas – individualized conceptualizations and beliefs about emotions – serve a fundamental function in guiding psychoemotional processes. These advancements have progressed alongside the development of third-wave therapies, which presume emotional schemas to be deeply involved in perpetuating psychological distress and emotional dysfunction. To critically assess the validity of this presumption, the current research proposed and evaluated an integrative model of psychoemotional functioning.

Two studies were completed using a combination of behavioral, performance-based, and self-report measures of emotional schemas and psychoemotional functioning. Though further research is needed, results suggest the integrated model of …