Digital Commons Network^™

A Review On Sustainable Disposal Of Plastic Waste By Integration In Construction Materials, Yara S. El-Metwally, Iman El-Mahallawi, Khaled M. Dewidar, Mostafa R. Refaat

Architectural Engineering

Over the last decades, plastic waste (PW) has increased exponentially and has become a serious threat to our planet, aquatic system and human health. Recycling or reusing PW in producing ecofriendly materials is an efficient solution to reduce plastic pollution and to minimize the depletion of raw materials as well. Previous studies have shown promising potentials of using PW in the construction sector, such as binder, aggregate, or substitute of cement and sand in concrete, brick or mortar. Laboratory results indicate that implementing plastic waste as aggregates in cement composites obtains higher thermal resistance and acoustical performance. However, a reduction …

School Psychologists’ Perspectives On The Impact Of Clinical Practice On Their Personal Lives, Nantha Priya Ramu

Research Datasets

School psychologists in WA completed an online survey which included demographic information and a perception survey which asked them questions relating to their emotional states in the last 6 months, if they felt work impacted their personal relationships and communication, some factors that contributed to wellbeing, self-care practices and organisational practices for school psychologists' wellbeing.

Examining The Lived Experiences Of Families With Children With Developmental Disabilities Participating In Recreational Dance Programs, Isabella Seguin

Theses and Dissertations (Comprehensive)

Objective

Families with children with developmental disabilities (DDs) experience effects on family functioning and will often turn to physical activity (e.g., dance) to mitigate these effects. This research examines the lived experiences of families with children with DDs participating in recreational dance programs to understand the myriad of effects on all participants: children with DDs, families, and dance instructors.

Methods

In order to fully understand the lived experiences of participants, phenomenology was used as the theoretical orientation to guide this research. Each case (5 cases, N=19) consisted of a primary parent, a child with a developmental disability, sibling(s) (if applicable), …

Discerning Friend From Foe: Systematic Revision Of Cuscuta L. Section Indecorae Using A Combined Ecological, Morphometric, And Phylogenetic Approach., Corey Burt

Theses and Dissertations (Comprehensive)

The genus Cuscuta (Dodder; Convolvulaceae) are obligate parasitic plants. In one clade known as section Indecorae, there are species which are considered pests that pose significant threats to agricultural crop production, while other species are rare or known only from historical records. Section Indecorae contains three species: C. coryli, C. warneri, and C. indecora (the latter with three infraspecific taxa: var. indecora, var. longisepala, and var. attenuata). The systematics of section Indecorae are not currently resolved. Cuscuta indecora has a long and complicated taxonomic history with many infraspecific varieties described, and …

I Am Queer And Asian: The Crossroad Of Race And Lgbtqia+ Identity Among Queer Asian Canadian Youth And The Impacts Of The Covid-19 Pandemic, Kenny Chee

Theses and Dissertations (Comprehensive)

LGBTQIA+ Asian youth face unique challenges due to their intersecting identities. Utilizing Asian Critical Race Theory and the Integration Model of Stress and Trauma in LGBTQIA+ Asians, LGBTQIA+ Asian youth are likely to experience detrimental mental health outcomes due to the stigmatization within their Asian culture and racial discrimination from the LGBTQIA+ communities. Moreover, the COVID-19 pandemic exacerbated existing challenges because of the closure of community spaces and increased hate crimes against Asians. Nonetheless, research on the intersectional experiences of LGBTQIA+ Asians in Canada, especially in the context of the COVID-19 pandemic is sparse. Thus, to address this gap, I …

Transformations Towards Just Urban Sustainabilities: A Community Psychology Approach To Analyzing And Fostering Urban Changes, Bianca C. Dreyer

Theses and Dissertations (Comprehensive)

Cities are uniquely positioned to drive social change towards more just and sustainable futures. However, while discourses of ‘transformations towards sustainability’ have gained prominence, their focus on integrating equity and justice and tackling the root causes of current unsustainabilities is lacking. This document outlines a research endeavor aimed at analyzing and fostering urban sustainable transformations from a community psychology perspective. This research is based on the assertion that without radical change based in equity and justice considerations, transformative efforts fail. First, a theory of just urban sustainable transformations (JUST) is suggested that draws on urban transformations and just sustainabilities scholarship. …

Disrupting And Expanding The Discourse: Palliative Care Clinicians' Experiences With Patients' Non-Physical Suffering, Maxxine Rattner

Theses and Dissertations (Comprehensive)

While one of the primary aims of palliative care is to prevent and relieve suffering, both physical and non-physical, research to date has been very limited re: clinicians’ experiences with patients’ non-physical suffering (e.g., suffering that may be psychological, emotional, social, spiritual and/or existential in nature); both how clinicians work with/respond to this kind of suffering in their day-to-day work, and the effect of this aspect of their work on clinicians themselves. No research to date has considered the impact of palliative care’s dominant non-physical suffering discourse — which presents the relief of non-physical suffering as falling along a binary …

Comparison Of Permafrost Thaw-Related Changes To Hydrological Response And Land Cover In Subarctic Peatland-Dominated Landscapes, Mikhail Mack

Theses and Dissertations (Comprehensive)

The hydrological implications of discontinuous permafrost thaw in peatland-dominated basins are not well understood. While there is evidence suggesting that permafrost-thaw-driven land cover change increases annual runoff and the runoff ratio in the Taiga Plains of northwestern Canada, few studies have evaluated the impact on small to medium-sized basins (< 10⁵ km²) outside this ecoregion. Here, we assess runoff, runoff ratio, and precipitation trends for 34 peatland-dominated basins, of which 28 are in the discontinuous and sporadic permafrost zones and 6 in adjacent permafrost-free environments. We calculated annual and monthly trends between 1970 and 2016 using the Mann-Kendall …

Spatial And Temporal Characteristics Of Historical Surface Climate Over The Northwest Territories, Canada, Bhaleka D. Persaud

Theses and Dissertations (Comprehensive)

Climate change is putting many of the Northwest Territories (NWT) ecosystems, its people and animal populations at risk due to accelerated warming, permafrost thaw, and changing precipitation regimes. As the NWT continues to warm, at disproportionately higher rates when compared to the rest of Canada, threats to the stability of NWT’s ecosystems are expected to increase. Consequently, understanding how climate warming has changed historically and its implications on natural ecosystems requires point-to-region-specific, long-term climatic data to elucidate important drivers of observed changes relevant to decision makers at community, Indigenous, Territorial and Federal government levels. However, in situ climate data are …

A Departmental Dilemma: The Genesis Of Canadian Military Export Policy, 1945-1960, Paul Esau

Theses and Dissertations (Comprehensive)

Recent sales of Canadian military equipment to Saudi Arabia have highlighted a contradiction between Canadian policy on paper and in practice. This dissertation seeks to explain these contradictions by exploring the evolution of Canadian conventional military export policy in the key years between 1946 and 1960. It loosely divides this 15-year span into three periods, which correspond to the genesis of Canadian military export policy (1946-1949), its expansion and formalization (1950-1955), and its first existential challenge (1956-1960). With a particular focus on the Department of External Affairs, this work explores the political considerations and bureaucratic debates which shaped government decision-making …

Winter Dynamics Of Storm Water Management Ponds And Winter Tolerance In Three Aquatic Plant Species, Patrick Strzalkowski

Theses and Dissertations (Comprehensive)

The vast majority of the research into the performance of stormwater management ponds (SWMPs) has been performed in warm regions or during the warmer seasons in temperate regions. It is presumed that SWMPs are inactive in the winter as any potential stormwater is trapped in snow and ice. The main goal of this thesis was to test this presumption and to study the dynamics and performance of three SWMPs during the winter. Remote water level loggers were installed into the three SWMPs and daily grab samples from the influents and effluents were taken and analyzed for total phosphorus (TP), chloride, …

Assessment Of Stream Metabolism And Associated Environmental Drivers In The Greiner Lake Watershed, Nunavut, Canada, Nicole Gotkowski

Theses and Dissertations (Comprehensive)

Stream metabolism is an ecological process that can be monitored to assess carbon cycling and productivity within a stream ecosystem. GPP (gross primary productivity) is measured as oxygen produced by autotrophs and ER (ecosystem respiration), which is measured by oxygen depleted by all living organisms. Complications arise when estimating GPP and ER in the Arctic because most methods require a period of darkness when GPP ceases, however, summer regimes of photosynthetically active radiation (PAR) do not reach zero. Furthermore, natural diffusion of oxygen from the atmosphere (k) must be accounted for but this requires extensive field work, thus posing problems …

Inspirational Bullshit: The Good, The Bad, And The Vacuous, Esther Abel

Theses and Dissertations (Comprehensive)

There are myriad methods offered in the “self-help industry” and on social media promising to improve happiness. Some messages are evidence-based, often drawn from positive psychology research, and suggest actions requiring time and effort, while other messages may offer feel-good platitudes that are devoid of meaningful guidance; we label this latter type of content “inspirational bullshit.” Across two manuscripts, we investigate the predictors of liking different kinds of positive self-help content, from meaningless randomly-generated phrases to vacuous positivity to evidence-based advice. In the first manuscript, across three studies, bullshit receptivity (a tendency to judge pseudo-profound statements as profound) and people’s …

Controls On Thermokarst Lake Water Balances In The Inuvik - Tuktoyaktuk Region, Evan J. Wilcox

Theses and Dissertations (Comprehensive)

There are tens of thousands of thermokarst lakes in the Inuvik-Tuktoyaktuk region, located in the northwest corner of the Northwest Territories, Canada. These lakes formed following the last glacial period in areas where ice-rich permafrost thawed and created depressions in the landscape. The Inuvik-Tuktoyaktuk region is one of the fastest warming regions in the world, leading to changing precipitation patterns, permafrost thaw and deciduous shrub expansion, all of which are affecting the water balance of thermokarst lakes. During the past several decades, lake expansion and contraction have been observed in response to fluctuations in precipitation. While these changes in lake …

The Design And Characterization Of Gold Nanoclusters As Elementary Building Blocks, Heather Gaebler

Theses and Dissertations (Comprehensive)

Gold nanoclusters with diameters in the quantum size regime (< ~2 nm) are promising building blocks for the design of novel nanomaterials as they exhibit unique size-dependent properties that can be altered and fine-tuned. The research outlined in this PhD thesis employs density functional theory to construct and analyze small ligand-protected cage and rod-shaped nanoclusters. Chapter 2 reports stable halide-protected gold nanocages that were engineered to have a closed-shell valence electron count of 18. This study finds that nanocages comprised of 19 and 20 gold atoms can be converted into stable magic number species containing 18 valence electrons by modifying their charged states via adsorption of halide ligands to the cage’s surface. Chapter 3 reports stable ligand-protected gold nanoclusters with a tetrahedral Au₄ core that were engineered to have a closed-shell valence electron count of 2. This study investigates the structural and electronic effects of halide and alkoxy ligands on the tetrahedral nanocluster and concludes that the results support the broader conclusion that it’s possible to fine-tune the stability and electronic properties of small gold nanoclusters using appropriate ligands. Chapter 4 reports stable gold nanorods that have diameters in the quantum regime that were constructed from elementary building blocks that contain “halide-staples”. This study presents different orientations of the “halide-staple” motifs on …

Exploring The Effectiveness Of Ecological Momentary Assessment And Video At Eliciting The Impact Of Park Features On Human Health And Well-Being In A Protected Area Context, Katelyn O'Bright

Theses and Dissertations (Comprehensive)

It is increasingly recognized that contact with nature in parks and other forms of protected areas provides benefits to visitors’ physical, mental, social, spiritual, and intellectual health and well-being. However, the methods used to assess these outcomes, including the influence of different environmental features that lead to these benefits, is under-researched. To address this gap, this study used a mixed methods design to explore the effectiveness of using Ecological Momentary Assessment (EMA) and video to assess the impact of various park features on the self-perceived (subjective) health and well-being of visitors. Participants were prompted by a mobile application on their …

(Re)Mediating History In Canadian Auto/Biographic Long Poems Since 1970, Heather Olaveson

Theses and Dissertations (Comprehensive)

Responding to current topics of national debate around cultural appropriation, authenticity of voice and identity, historical commemoration, and foundational systems of social injustice, this dissertation takes as its launching point the question of how we are implicated in each other's histories. It examines the politics of rewriting history in Canadian auto/biographic long poems from 1970 to the present, reconsidering historiography as it intersects with life writing, gender, race, and the performance of voice. What narratives are reimagined about the lives of Canadian historical figures, how are such stories articulated, and who is permitted to perform the telling? As a whole, …

Teammate Social Support For Female Athletes Recovering From Sports-Related Concussion, Brianna Iltshishin, Jennifer Robertson-Wilson, Michael Cinelli

Theses and Dissertations (Comprehensive)

Objective: Social support is a complex, multi-dimensional construct that is a vital coping mechanism for athletes experiencing sports-related concussion (SRC). Typically reported sources of social support include coaches, athletic therapist, and family/friends. This qualitative study, guided by a phenomenological orientation, aimed to understand previously concussed female athletes’ perceptions of the social support provided by their teammates. The study also explored how social support, or lack of social support, affected athletes as they navigated their concussion recovery.

Methods: Five participants were recruited through purposive and snowball sampling. Data collection consisted of background questionnaires and one semi-structured one-on-one interview. Interviews were transcribed …

Phosphorus Release And Recovery From Simulated Ferric Wastewater Sludge, Aseel Alnimer

Theses and Dissertations (Comprehensive)

Phosphorus (P) is a fundamental element necessary for all life forms and a key component in the fertilizer industry. Meanwhile, the excessive load of P to water bodies due to human activities has the potential to promote eutrophication. Wastewater treatment plants remove P either biologically or chemically and produce P rich sludge which could be a potential renewable source for P. At present, commercial technologies exist for P recovery from biological wastewater sludge. However, P recovery from chemical sludge particularly iron(III)-phosphate (Fe-P) sludge generated in chemical P removal plants that use iron(III) salts remains a challenge.

This study explored, in …

Abmr: An R Package For Agent-Based Model Analysis Of Large-Scale Movements Across Taxa, Benjamin Gochanour, Javier Fernández-López, Andrea Contina

School of Integrative Biological & Chemical Sciences Faculty Publications

1. Agent-based modelling (ABM) shows promise for animal movement studies. However, a robust, open-source and spatially explicit ABM coding platform is currently lacking.
2. We present abmR, an R package for conducting continental-scale ABM simulations across animal taxa. The package features two movement functions, each of which relies on the Ornstein–Uhlenbeck (OU) process.
3. The theoretical background for abmR is discussed and the main functionalities are illustrated using example populations.
4. Potential future additions to this open-source package may include the ability to specify multiple environmental variables or to model interactions between agents. Additionally, updates may offer opportunities for disease ecology and integration with …

College Students And Beliefs In The American Dream: The Impact Of Race, Class, And Gender, Maggie E. Marlow

Honors College Theses

The concept of the American Dream and its promises of prosperity and social mobility, primarily through hard work, has been prevalent throughout modern U.S. history. However, what defines the American Dream has been arbitrary and varied, and research has shown that attitudes and beliefs surrounding the Dream have changed over time with shifts in the economic and political environments. The research for this thesis uses qualitative methods, specifically thematic analysis, to analyze 16 in-depth, one-on-one interviews to examine how students attending a predominantly white university in the Southeastern United States perceive the American Dream today while factoring in how those …

Petrological And Geochemical Evaluation Of Rare-Earth Element Potential In The Sparta Granite Complex, Max J. Eshbaugh

Honors College Theses

Rare earth elements (REEs) are important resources with applications in the electronics, renewable energy, and automotive industries. REEs may be concentrated in the residual weathered portion of igneous parent rocks, typically granites. These residual deposits are mined in southeast Asia, but analogous climatic and geologic conditions suggest the existence of economically viable REE residual deposits in the southeastern United States (U.S.). The Sparta Granite Complex in east-central Georgia is a granitoid complex emplaced at the end of the Alleghanian orogeny, forming a suture between the Savannah River and Milledgeville terranes. Petrologic and geochemical assessments of the Sparta Granite and overlying …

Redescription Of Adults And First Description Of The Larva Of Haemaphysalis (Rhipistoma) Adleri Feldman-Muhsam, 1951 (Acari: Ixodidae), Parasite Of Carnivorans In Western Asia, Cole Anderson

Honors College Theses

The adult ticks of Haemaphysalis (Rhipistoma) adleri Feldman-Muhsam, 1951 (Acari: Ixodidae) are redescribed and the larva of this species is described for the first time here. The adults of H. adleri that we studied were collected from various canid, felid and hyaenid carnivorans (Carnivora: Canidae, Felidae, Hyaenidae) as well as a hedgehog (Erinaceomorpha: Erinaceidae) in Iraq, Israel and West Bank. The males, females and larvae of H. adleri can be differentiated from Haemaphysalis (Rhipistoma) species occurring in the Palearctic portion of West Asia and Egypt as well those in the H. asiatica subgroup by the length of idiosomal …

Emotion Recognition Skills In College Students: Do Gender, Skin Tone, And College Major Affect Emotion Recognition?, Kaylee M. Mccook

Honors College Theses

Humans constantly express emotions both consciously and unconsciously; these emotions are constantly being perceived by those around us. The ability to understand nonverbal expressions and body language is key for successful social interactions in private and professional life. This research assessed 174 students on their ability to perceive emotions from nonverbal cues in faces and postures. The first hypothesis stated there would be a difference in the ability to perceive nonverbal language based on the gender of the viewer was partially supported. I found that women made fewer mistakes than men when observing sets of facial stimuli. A non-significant difference …

Nursing Students' Competence With Anesthesia, Mallory Groover

Honors College Theses

Anesthesia management is diverse and complex. As a Registered Nurse (RN), it is imperative that the basic pathophysiology of anesthesia complications is understood in order to provide competent care. The effects of anesthesia can vary greatly depending on factors such as age, sex, health status, and lifestyle. Since there are several variables, it takes years of experience working with a diverse population to anticipate adverse effects and patient outcomes. Preparedness for anesthesia management could be improved through the use of simulations during nursing school relating to post-anesthesia care, as well as more in-depth lectures over the potential complications and pharmacodynamics …

Presidents And Media During Initial Federal-Level Hurricane Relief: A Study Of Presidential Crisis Communication Efforts, Emily A. Ball

Honors College Theses

Public relations serves a huge role in almost every sector, including politics. Crisis communication, a subset of public relations, is very important in a setting that constantly undergoes crises. The response to these crises matters a great deal on the federal level because the outcomes can affect such a wide variety of policies and even elections. Because of this, I wanted to focus on one type of crisis that every president is almost guaranteed to face: hurricanes. To examine the effectiveness of federal-level crisis communication, I look at Bush, Obama, Trump, and Biden’s responses to the worst hurricane during their …

Machiavellianism And Conscientiousness Of Self And Of Others, Anna Z. Jones

Honors College Theses

As a dark personality, Machiavellianism (MACH) includes callousness and deceit; however, individuals higher in MACH differ from other dark personalities in their strategic long-term orientation to manipulate others to achieve personal success, and their cynical world views towards others. To measure different aspects of personality, research has developed an assessment called the Big Five Inventory. One factor included in the five attributes is (high) conscientiousness: the tendency to be careful towards others, organized, and not impulsive. Such traits seem to support the strategic aspect of the MACH personality but do not support the lack of care that individuals higher in …

Understanding Nursing Students' Cultural Competency Levels And Implicit Biases, Deja J. Gillans

Honors College Theses

In the United States, non-Hispanic Black women are approximately three times as likely to die from pregnancy-related complications as non-Hispanic White or Hispanic women. Racism has been identified as a significant barrier to health equality and the improvement of maternal health outcomes for Black patients. Cultural competence and implicit bias in health care has emerged in part to address factors that may contribute to racial/ethnic disparities in health care. Both can impact the way nurses consciously and subconsciously deliver healthcare to patients of a different gender, race, religion, culture, socioeconomic status, etc. Nurses who are more culturally competent and aware …

Knowledge Management As An Approach For Enhancing The Performance Of Construction Firms: An Analytical Study, Ayman Ahmed Ezzat Othman, Marwa Abdelhafez, Essam Mahrous

Architectural Engineering

No abstract provided.

The Case For Establishing A Collective Perspective To Address The Harms Of Platform Personalization, Aylet Gordon-Tapiero, Alexandra Wood, Katrina Ligett

Vanderbilt Journal of Entertainment & Technology Law

Personalization on digital platforms drives a broad range of harms, including misinformation, manipulation, social polarization, subversion of autonomy, and discrimination. In recent years, policy makers, civil society advocates, and researchers have proposed a wide range of interventions to address these challenges. This Article argues that the emerging toolkit reflects an individualistic view of both personal data and data-driven harms that will likely be inadequate to address growing harms in the global data ecosystem. It maintains that interventions must be grounded in an understanding of the fundamentally collective nature of data, wherein platforms leverage complex patterns of behaviors and characteristics observed …