Digital Commons Network^™

African American English As A Predictor Of Ethnic And Ethnolinguistic Identity In Adolescence, Giahna L. Glasco

Dissertations and Theses

This study’s purposes were to provide support for the Social identity theory of African American English (Vietze & Glasco, 2022) and the meanings African American English (AAE) speakers assign to their dialect. The study was primarily based on Tajfel’s (1979) social identity theory that proposes individuals derive a sense of self from group membership. The qualitative analyses examined ethnic and language group memberships. Ethnic identity development (Phinney, 1992), and ethnolinguistic identity theories (Giles and Johnson, 1987) guided narrative and content analyses of Kiese Laymon’s memoir, Heavy: An American Memoir (Laymon, 2018). The sample included 21 African American English conversations …

Psychedelic Use And Psychological Flexibility: The Role Of Decentering, Mystical Experiences, Ego-Dissolution, And Insight, William M. Campo

Dissertations and Theses

The purpose of this study was to investigate potential associations between psychological flexibility (PF) and characteristics of the psychedelic experience: self-perceived meaningful intention, feelings of comfort and safety, decentering, mystical experiences, ego-dissolution, and insight. The first hypothesis was that perceived meaningful intention and feelings of comfort/safety during the psychedelic experience were expected to be associated with PF, decentering, mystical experiences, ego-dissolution, and insight. The second hypothesis was that decentering, mystical experiences, ego-dissolution, and insight were expected to be associated with greater PF. Participants who used classic psychedelic substances prior to this study were recruited from social media. The sample after …

The Real And The Digital: Female Agency And Resisting The Male Gaze In Lynn Hershman Leeson’S Works, Kelly Chou

Dissertations and Theses

This thesis focuses on three major feminist works by multimedia artist, Lynn Hershman Leeson (b. 1941), that grapple with the construction and potential of female identity. Considering the works within the context of Laura Mulvey’s seminal text “Visual Pleasure and Narrative Cinema,” this paper will attempt to elucidate how Hershman Leeson’s works have engaged with the male gaze and its social and cultural implications on female identity in visual spheres. This research demonstrates how Hershman Leeson’s efforts to understand the limitations and boundaries for women reflect the same phenomenons observed by Mulvey within “Visual Pleasure.” Rejecting this, Hershman Leeson also …

Youth Musicians’ Executive Functioning And Its Impact On Emotional And Behavioral Health, Michael A. Tate

Dissertations and Theses

A growing body of neuroscience literature shows that music promotes brain development, as learning a music instrument involves multiple brain regions and neurocognitive systems. In partnership with a non-profit organization with a mission to strengthen New York City communities through music education programs, this study aimed to evaluate the effects of music training on children’s executive functioning (EF), as well as emotional and behavioral outcomes. We hypothesized that (i) children’s EF would develop more rapidly with exposure to the program; (ii) the intensity of practice would be associated with rate of growth of children’s EF, emotion regulation and behavior; (iii) …

“I Knew These Marvelous People”: Gay Men’S Experiences Of Long-Term Hiv/Aids Survival, Ilana J. Sichel

Dissertations and Theses

The gay and bisexual men who were diagnosed with HIV/AIDS before the pharmaceutical breakthroughs of the mid-1990s were given what was expected to be a death sentence. Instead, the majority of those who began the newly available treatments outlived not just their initial prognoses but their lovers, friends, and community members who had already perished. This study used grounded theory analysis of semi-structured interviews with a sample of 10 self-identified gay men who are long-term HIV/AIDS survivors to explore experiences of trauma, loss, and mourning in relation to current psychological wellbeing. Qualitative thematic analysis indicated that despite demographic variance among …

Therapeutic Considerations For The Polycule: A Qualitative Exploration Of Consensual Non-Monogamy In Couples Treatment, Tema Watstein

Dissertations and Theses

Despite the growing visibility of consensual non-monogamy culturally and in the academic domain, treatment of CNM relationships has been understudied from the clinical perspective. This study utilized a sample of 11 clinicians, who discussed their experiences of treating non-monogamous couples through a semi-structured interview. Qualitative thematic analysis led to the emergence of robust themes, which were synthesized into three broader categories: 1. Therapeutic Process, 2. Issues in Treatment, and 3. The Meaning of Non-Monogamy. Therapists discussed their own clinical processes, with emphasis on countertransference, frame, self-disclosure, and considerations for training. Themes also emerged surrounding common issues in treatment, ranging from …

Examining The Effect Of Object Relations And Defense Mechanisms On Interpersonal Relations In Adults With Adhd Symptoms, Cherise White

Dissertations and Theses

Impaired interpersonal functioning, often persistent from childhood through adulthood, is common in ADHD. Symptoms of ADHD such as restlessness and impulsivity may result in behaviors such as being overly talkative, interrupting or intruding on others already engaged in activities, while inattentive symptoms may result in a person being perceived as aloof, indifferent, and/or uncaring (APA, 2013; Friedman et al., 2003). As compared to adults without a history of elevated ADHD symptoms, more impaired interpersonal functioning has been found among young adults with ADHD, and this increased impairment in adults with ADHD is often a primary reason they pursue therapy (Horowitz …

Loneliness, Interpersonal Sensitivity And The Mechanisms Through Which The Dimensions Of Trait Emotional Intelligence May Protect Against Clinical Depression, Eva H. Leighton

Dissertations and Theses

Reducing the prevalence of loneliness and depression are important public health objectives. This dissertation aims to contribute to these objectives by improving our understanding of the relationship between loneliness and depression. Specifically, we assessed three additional constructs known to be strongly associated with loneliness and depression –-perceived social support, emotional intelligence, and interpersonal sensitivity –- with the aim of showing how these three constructs influence the relationship between loneliness and depression. Previous research that jointly examines all five constructs has not been identified by the author in an extensive search of prior literature.

Specifically, this dissertation tested the following hypotheses: …

Identification Of Adhd And Comorbid Disorders In Children: The Potential Role Of Minority Group Membership, Rachel H. Tayler

Dissertations and Theses

Identification of ADHD and Comorbid Disorders in Children: The potential role of minority group membership

by

Rachel Tayler, MSc, MA

Advisor: Sarah O’Neill, PhD

Attention-Deficit/Hyperactivity Disorder (ADHD) affects six million US children. Females, Latinx, and possibly Black children have lower rates of diagnosis than their Male and White non-Latinx peers. ADHD is behaviorally defined, and as such, clinicians' perceptions of symptoms and determination of diagnoses may be influenced by demographic factors such as race, ethnicity and sex.

This vignette study examined whether clinicians' implicit ethnic, racial, and sex biases affect diagnosis of ADHD and comorbid conditions. Psychiatry trainees and pediatricians …

Being Black & Blue: Sex As A Moderator Between Adverse Childhood Experiences And Depressive Symptoms Among Black Emerging Adults, Wynta C. Alexander

Dissertations and Theses

Adverse Childhood Experiences (ACEs) have been linked to adult mental health consequences (e.g., depressive symptoms). Black people are disproportionately affected by ACEs, and factors related to ethnic subgroups and/or sex may produce differential depressive outcomes. The current study examined the moderating role of sex in the association between adverse childhood experiences and depression symptoms using a life course of health approach among a sample of Black emerging adults. Participants (n = 159) of the current study were Black (e.g., African – American) and Black Caribbean (e.g., Jamaican) undergraduate students (18 – 59 years old; 72.3% female) attending a large, public …

Covid-19 Vaccine Related Anxiety Partially Mediates The Association Between Covid-19 Related Anxiety And Student Adjustment To College During The Pandemic, Hanh Nguyen

Dissertations and Theses

The COVID-19 pandemic caused severe disruptions to the education of millions of college students, who were forced to adapt to sudden changes in living and learning environments. In this study, we sought to investigate two different dimensions of anxiety that were specific to the pandemic – COVID-19 related anxiety and COVID-19 vaccine anxiety – hoping to pinpoint the relationship between these two variables and students’ ability to adapt to college. Specifically, using cross sectional survey data during three semester waves (Spring 2021, Fall 2021, and Spring 2022) we hypothesized (1) a decreasing trend across time in both COVID-19 related anxiety …

21st Century Postmodernism: Time, Capitalism, Multiculturalism And Storytelling In Three Contemporary Novels, Raymond Joseph Calamito

Dissertations and Theses

No abstract provided.

Ternary Flow Simulation Based On The Conservative Phase Field Lattice Boltzmann Method, Chunheng Zhao

Dissertations and Theses

In this thesis, we numerically investigated multi-phase fluid dynamics (2 and 3-phase flow) by solving the Navier-Stokes equations coupled with the conservative phase field (CPF) equations using the Lattice Boltzmann method (LBM). To effectively simulate the large-scale multi-phase physics, we developed an open-source software, IMEXLBM, which can be easily parallelized on both CPUs and GPUs without significant modifications to the code. We first validated various parts of this software and then used this method to study the interaction of rising bubbles with a static oil droplet as well as the engulfment of the water droplet on solids coated with a …

Novel Mechanisms Of Dc And Kilohertz Electrical Stimulation, Zeinab Esmaeilpour

Dissertations and Theses

Transcranial electrical stimulation is a promising technique where a weak electrical current is applied to the scalp with the goal of modulating brain activity. Understanding the cellular mechanism of direct current (DC) and kilohertz (kHz) electrical stimulation is of broad interest in neuromodulation. More specifically, there is a large mismatch between enthusiasm for clinical applications of the method and understanding of DC and kHz novel mechanisms of action. This dissertation is centered around two main fundamental aims: 1) systematic study of the acute and long-term effects of kilohertz electrical stimulation and amplitude-modulated waveform with kHz carrier frequency using a well-established …

Evaluation Of Snow And Streamflow In The National Water Model With Analysis Using Machine Learning, Engela Sthapit

Dissertations and Theses

Snow has great influence on land-atmosphere interactions and snowmelt from the mountains is a vital water source for downstream communities dependent on snow fed lakes, rivers and streams. This study explored the snow and streamflow prediction capabilities of process-based numerical prediction and data-driven machine learning models.

The overall goal of this study was to understand the deficiencies in the NOAA’s National Water Model (NWM) to represent snow, subsequently streamflow, and recognize the areas where it could be improved for future model developments. The goal was also to evaluate if the recent advancements in machine learning techniques is useful for predicting …

Understanding And Controlling Failure Mechanisms Of The Zinc Anode For Rechargeable Alkaline Batteries, Michael J. D'Ambrose

Dissertations and Theses

In the coming years, the transformation of the electric grid will be in part enabled by safe, low-cost, and reliable large-scale rechargeable battery energy storage systems. Zinc (Zn) alkaline electrodes hold great importance and promise in the battery technology community as they satisfy the safety and cost requirements, yet their behavior in real world application is still poorly understood.

Two experimental studies were carried out, the first of which investigates failure mechanisms and material evolution during cycling of 27 zinc-manganese dioxide (Zn-MnO₂) cells in 37 wt% potassium hydroxide (KOH) electrolyte wherein the percent utilization of the theoretical capacity …

On A New Framework For Detecting, Classifying, And Forecasting Floods For Large-Scale Flood Risk Analysis, Equisha Glenn

Dissertations and Theses

Increasing trends in flooding events are projected to continue as climate changes have increased the chance of extreme weather events. Given the significant, damaging impacts of extreme floods, the ability to effectively model floods is crucial for risk management and mitigation of the impacts of these extreme flooding events. This dissertation presents a new framework for detecting and predicting large-scale flood risk in the United States using climate information. This methodology categorizes regional, simultaneous floods into an index that is used to forecast the risk of extreme flooding a season ahead. The index proposed herein, named the Spatial Flood Index …

Design And Control Of Quasi-Direct Drive Actuation For Lightweight And Versatile Wearable Robots, Shuangyue Yu

Dissertations and Theses

Wearable robots have shown great potential for augmenting the physical capabilities of humans in lab settings. However, wearable robots for augmenting the physical capabilities of humans under community-based conditions are the new frontier of robotics. Furthermore, the design and control are still considered to be grand challenges for providing physical augmentation for humans. In terms of design, the state-of-the-art exoskeletons are typically rigid, bulky, and limited to lab settings. In terms of control, most of the rhythmic controllers are not versatile and are focused only on steady-state walking assistance.

The motivation behind my research is to improve both the design …

Data Fusion And Synergy Of Active And Passive Remote Sensing; An Application For Freeze Thaw Detections, Zahra Sharifnezhadazizi

Dissertations and Theses

There has been a recent evolvement in the field of remote sensing after increase of number satellites and sensors data which could be fused to produce new data and products. These efforts are mainly focused on using of simultaneous observations from different platforms with different spatial and temporal resolutions. The research dissertation aims to enhance the synergy use of active and passive microwave observations and examine the results in detection land freeze and thaw (FT) predictions. Freeze thaw cycles particularly in high-latitude regions have a crucial role in many applications such as agriculture, biogeochemical transitions, hydrology and ecosystem studies. The …

Investigations On Vortex-Induced Vibration (Viv) Phenomena Of Single-And-Double-Cylinder Flexible Beam Arrangements Of Energy Harvesters, Xiaohai Jiang

Dissertations and Theses

Due to the battery lifespan limitation and the need for periodical replacement, energy-harvesting is an actual alternative as a power source for low power devices in some special areas. And among them, the piezoelectric energy-harvesting, which converts mechanical (vibration) into electric energy, is the fastest development one in recent years.

In our current work, a piezoelectric harvester with a finite length cylinder fixed to one end of a flexible thin beam, is the research object in an incoming flow in the CCNY wind tunnel. We report on the efforts to improve the state-of-the-art harvester, called reconfigurable harvester, which has functions …

Understanding The Relationship Between Urban Areas And The Boundary Layer Using Remote Sensing Methods, Gabriel A. Rios

Dissertations and Theses

The atmospheric boundary layer is crucial to the exchange in energy between the Earth's surface and the atmosphere. Within this layer, the majority of human activities are carried out, which makes understanding the boundary layer especially important for many of our interests. A key component of this energy exchange is found at the surface, was surface properties are the interface through which momentum, heat, moisture, and other fluxes are transferred between media. Not only does the surface act as an interface, but as an actor that influences the exchange efficiency and rates. This concept is the crux of atmospheric boundary …

Modulation Of Brain Tissue Transport And Endothelial Glycocalyx And Tight Junctions Of The Blood-Brain Barrier By Transcranial Direct Current Stimulation, Yifan Xia

Dissertations and Theses

Transcranial direct current stimulation (tDCS) is a non-invasive approach to treat a broad range of brain disorders and to enhance memory and cognition in healthy individuals. In addition to directly acting on neurons by modulating the membrane potential, inducing neuronal polarization and changing cortical excitability in the brain to achieve its therapeutic effects, prior studies found that tDCS can transiently enhance the permeability (P) of the blood-brain barrier (BBB), the interface between blood circulation and brain tissue. Brain extracellular space (ECS) is a narrow microenvironment which surrounds every cell in the central nervous system (CNS). ECS occupies ~20% of brain …

Fundamentals Of Microgel Flooding And Nanoparticles-Stabilized Foams In Enhanced Oil Recovery, Shuaijun Li

Dissertations and Theses

For centuries oil has remained a critical energy source for human civilization. After years of extraction, many oil fields have reached or are reaching a decline stage of production, even though up to a half of the total crude oil reserves in these fields has not been recovered yet. One reason is due to the structural heterogeneity of the oil reservoirs—reservoirs may consist of regions of higher permeability with larger pore size and regions of lower permeability with smaller pore size. Displacing fluids tend to flow through large permeability zones only without reaching the oil trapped in low permeability region; …

Wave Engineering In Time Modulated, Nonlinear, And Anisotropic Metamaterials, Ahmed Mekawy

Dissertations and Theses

Leveraging wave matter interactions is central to a myriad of electromagnetic wave-based applications. During the past decades, research on extreme wave manipulation has been revolutionized by artificially engineered materials (metamaterials) and by adding new aspects to the wave-matter interactions that showed intriguing results inaccessible in conventional linear, time invariant (LTI), passive and isotropic media. In this work, I will explore, numerically and experimentally, the possibility of realizing devices that perform beyond or close to their fundamental LTI limitations by adding periodic modulation, nonlinearity, and gain. I will demonstrate these concepts at radio frequencies (RF) and at optical frequencies. Specifically, at …

Nonlinear Light - Matter Interactions Of Ultrafast High Intensity Laser Pulses, Henry Meyer

Dissertations and Theses

This thesis focuses on the key nonlinear optical effects that arise from the interactions of intense ultrafast laser pulses with various states of matter. These interactions involve electronic and molecular states and yield new information on the underlying fundamental processes that govern the molecular world. Modern day lasers offer ultrashort pulses, high intensities, and complex polarizations and wavefronts. These extreme conditions have profound effect on the optical properties and behaviors of electronic and molecular states within a material. The changes in these mechanisms effect generation of nonlinear optics, such supercontinuum (SC), stimulated Raman (SRS), self-focusing and filamentation, conical emission (CE), …

Computational Model Of Electroconvulsive Therapy Considering Electric Field Dependent Skin Conductivity, Gozde Unal

Dissertations and Theses

Improvements in electroconvulsive therapy (ECT) outcomes have followed refinement in device electrical output and electrode montage. The physical properties of the ECT stimulus, together with those of the patient’s head, determine the impedances measured by the device and govern current delivery to the brain and ECT outcomes. However, the precise relations among physical properties of the stimulus, patient head anatomy, and patient-specific impedance to the passage of current are long-standing questions in ECT research and practice. In this thesis, we develop a computational framework based on diverse clinical data sets. We developed anatomical MRI-derived models of transcranial electrical stimulation (tES) …

Analysis Of Eye Movements To Cartoon Faces In Videos, Kaustubh Sapru

Dissertations and Theses

Saccades are rapid eye movements that move our gaze between successive points of fixation. They are indicative of how we direct our attention and therefore play a role in memory and cognition. For static images, it is established that saccades move faster to faces compared to other objects. We hypothesize that the same is true for videos. To test this hypothesis, saccades to faces in motion pictures have been analyzed. The analysis here entails the recording of saccades to two videos followed by a statistical study of saccades going towards faces or going away from faces. What makes this study …

Ai-Driven Automated Medical Imaging Analysis, Jingya Liu

Dissertations and Theses

Medical imaging has been applied widely in many clinical diagnoses to detect and differentiate abnormalities by revealing the internal structure of the human body at normal anatomical and physiological levels. Manual analyzing medical images demands attention and is time-consuming, requiring well-trained expertise. The speed, fatigue, and experience may limit the diagnostic performance, leading to delays and even false diagnoses that significantly impact patient treatment. Therefore, accurate systematic systems based on medical image analysis are crucial for timely clinical diagnosis.

This dissertation focuses on advancing automatic computer-aided diagnosis systems to detect cancer, assisting radiologists with early intervention to improve survival rates. …

A Real-Time 3d Object Detection, Recognition And Presentation System On A Mobile Device For Assistive Navigation, Jin Chen

Dissertations and Theses

This thesis proposes an integrated solution for 3D object detection, recognition, and presentation to increase accessibility for various user groups in indoor areas through a mobile application. The system has three major components: a 3D object detection module, an object tracking and update module, and a voice and AR-enhanced interface. The 3D object detection module consists of pre-trained 2D object detectors and 3D bounding box estimation methods to detect the 3D poses and sizes of the objects in each camera frame. This module can easily adapt to various 2D object detectors (e.g., YOLO, SSD, Mask RCNN) based on the requested …

A Citizen-Science Approach For Urban Flood Risk Analysis Using Data Science And Machine Learning, Candace Agonafir

Dissertations and Theses

Street flooding is problematic in urban areas, where impervious surfaces, such as concrete, brick, and asphalt prevail, impeding the infiltration of water into the ground. During rain events, water ponds and rise to levels that cause considerable economic damage and physical harm. The main goal of this dissertation is to develop novel approaches toward the comprehension of urban flood risk using data science techniques on crowd-sourced data. This is accomplished by developing a series of data-driven models to identify flood factors of significance and localized areas of flood vulnerability in New York City (NYC). First, the infrastructural (catch basin clogs, …