Digital Commons Network^™

Cross-Sectional Collaboration In Florida's Emergency Management System, Christopher Stephen Kirkland

Walden Dissertations and Doctoral Studies

Florida faces a unique set of emergency management hazards prompted by the state’s geography, high volume of tourism, and position as a hub of international trade. The state has developed a highly adaptive emergency management system to deliver humanitarian assistance to Floridians affected by natural and other disasters. Despite the importance of collaboration in delivering humanitarian goods and services to Floridians in times of crisis, little is known as to how collaboration occurs, what impediments exist, and how organizations adapt to the dynamics of natural and other disasters. In this qualitative case study, the integrative framework for collaborative governance was …

Challenges With Multicultural Leadership For Project Managers: A Qualitative Multiple Case Study, Harrison Nnaemeka Nnaji

Walden Dissertations and Doctoral Studies

Culturally diverse teams are becoming the norm with the rising trend of globalization. The phenomenon has been associated with a rise in the number of multicultural teams with diversified team members. The central problem addressed in this study relates to inadequate understanding of challenges posed to project managers of multicultural software development teams operating in Nigeria. The purpose of this qualitative multiple case study was to explore challenges faced by this population. Avruch’s theory of culture, the Human needs theory by Burton, and the cross-cultural adaptation theory by Kim were the conceptual frameworks for this study. Participants included 15 project …

Secondary Teachers’ And Administrators’ Perceptions Of School Discipline Practices., Amity Camilla Pope

Walden Dissertations and Doctoral Studies

Teachers and administrators in an urban, suburban, and rural school district on the east coast of the United States faced challenges implementing effective discipline policy interventions to manage student misbehavior. The purpose of this qualitative study was to explore the perceptions of educators about the challenges of implementing discipline policy interventions and the support needed to increase implementation effectiveness. Positive behavioral interventions and supports (PBIS) a three-tiered framework of data, systems, and practices to affect student outcomes was used to guide this study. The research questions were used to elicit educator’s perceptions of the challenges faced and supports needed when …

Exploring An Indian K-12 School’S Experience Of Culturally Adapting Multiple Intelligences Theory, Jessica Richmond

Walden Dissertations and Doctoral Studies

Many government-run K-12 schools in India struggle to serve their diverse student bodies in a culturally responsive manner that draws from the nation's rich cultural heritage. Academic programs based on Gardner’s multiple intelligences (MI) theory have been utilized internationally to enhance learning, but the implementation has not been explored in a school curriculum based on Indian culture. The purpose of this qualitative case study, which was grounded in MI and Ladson-Billing’s culturally responsive pedagogy (CRP), was to explore the methods and experiences of an Indian K-12 school that culturally adapted MI theory to include yogic principles of the Indian culture. …

Experiences And Perceptions Of Local Diocesan Catholic School Teachers Regarding The Progress Of Their Implementation Of Project-Based Learning In The Classroom, Donna Lee Saladino

Walden Dissertations and Doctoral Studies

AbstractAfter finding research confirming that the innovative approach of project-based learning (PBL) improves 21st century education for all students, the administrators of a large local diocesan Catholic school system (LDCSS) initiated PBL implementation in their schools. The problem was that after 6 years it was not known how the teachers were experiencing and perceiving their progress with this implementation in the classrooms. The purpose of this basic qualitative study was to discover and understand LDCSS teachers’ experiences and perceptions of their progress of PBL implementation in the classroom. The conceptual framework for the study comprised John Dewey’s educational philosophy of …

Exploring The Evolution Of Trypanosoma Cruzi And The Emergence Of Chagas Disease In The Context Of Environmental Change: Applying The Stockholm Paradigm To Archaeoparasitology, Part I, Aida Romera Barbera, Daniel R. Brooks, T. Michael Fink, Karl J. Reinhard

Karl Reinhard Publications

The Stockholm Paradigm is an evolutionary synthesis that explains the emergence of novel pathogens in the context of environmental disturbances. Considering the urgent climate change situation, anticipation stands as key to prevent and mitigate the effects that climate change can have in the emergence of pathogens. However, the success of preventive measures is hindered by a limited knowledge of the interplaying dynamics between biology, environment, and culture leading to emerging infectious diseases. For many decades, bioarchaeologists have been gathering data on past human-environment interactions, therefore contributing to the conversation. Archaeoparasitology, at the intersection between pathology, bioarchaeology, and biology, is uniquely …

Variance In Offspring Sex Ratio And Maternal Allocation In A Highly Invasive Mammal, Sarah M. Chinn, Timothy J. Smyser, James C. Beasley

United States Department of Agriculture Wildlife Services: Staff Publications

Skewed sex ratios at birth are widely reported in wild populations, however, the extent to which parents are able to modulate the sex ratio of offspring to maximize their own fitness remains unclear. This is particularly true for highly polytocous species as maximizing fitness may include trade-offs between sex ratio and the size and number of offspring in litters. In such cases, it may be adaptive for mothers to adjust both the number of offspring per litter and offspring sex to maximize individual fitness. Investigating maternal sex allocation in wild pigs (Sus scrofa) under stochastic environmental conditions, we predicted that …

Assessment Of Habitat‐Specific Competition For Oral Rabies Vaccine Baits Between Raccoons And Opossums, James L. Helton, Jacob E. Hill, David A. Bernasconi, Wesley C. Dixon, Richard B. Chipman, Amy Gilbert, James C. Beasley, Guha Dharmarajan, Olin E. Rhodes Jr.

United States Department of Agriculture Wildlife Services: Staff Publications

Throughout the eastern United States, the National Rabies Management Program (NRMP) distributes oral rabies vaccine (ORV) baits to manage rabies virus circulation in raccoon (Procyon lotor) populations. The consumption of vaccine baits by non‐target species including Virginia opossums (Didelphis virginiana) may reduce the effectiveness of ORV programs, but competition for baits remains poorly quantified in many areas of the southeastern United States. We distributed placebo ORV baits injected with a biomarker across 4 land cover types (bottomland hardwood, upland pine, riparian, isolated wetland) on the Savannah River Site in South Carolina, USA, 2017–2019. We then trapped …

Controllable Factors Affecting Accuracy And Precision Of Human Identification Of Animals From Drone Imagery, Landon R. Jones, Jared A. Elmore, B. Santhana Krishnan, Sathishkumar Samiappan, Kristine O. Evans, Morgan B. Pfeiffer, Brad Blackwell, Raymond Iglay

United States Department of Agriculture Wildlife Services: Staff Publications

Surveying animal populations using drones (unoccupied aircraft systems [UAS]) provides numerous advantages; however, few best practices exist to survey animal communities with drones. Among myriad factors that can affect human identification and counts of animals from drone images, we focused on three factors typically controlled in the study design or by the drone pilot: flight altitude, camera angle, and time of day. Identifying interactions and patterns among these three variables represents an important first step to determining best survey practices. We used a drone to survey known numbers of eight animal decoy species, representing a range of body sizes and …

Predicting Dispersal And Conflict Risk For Wolf Recolonization In Colorado, Mark A. Ditmer, George Wittemyer, Katherine A. Zeller, Stewart W. Breck, Robert J. Fletcher Jr., Kevin R. Crooks

United States Department of Agriculture Wildlife Services: Staff Publications

1. The colonization of suitable yet unoccupied habitat due to natural dispersal or human introduction can benefit recovery of threatened species. Predicting habitat suitability and conflict potential of colonization areas can facilitate conservation planning.

2. Planning for reintroduction of gray wolves (Canis lupus) to the United States state of Colorado is underway. Assessing which occupancy sites minimize the likelihood of human-wolf conflict during dispersal events and seasonal movements is critical to the success of this initiative.

3. We used a spatial absorbing Markov chain (SAMC) framework, which extends random walk theory and probabilistically accounts for both movement behavior …

Population Density Of The Small Indian Mongoose (Urva Auropunctata) Across Multiple Habitat Types And Seasons In Puerto Rico, Are R. Berentsen, Caroline C. Sauvé, Mel J. Rivera-Rodriguez, Fabiola B. Torres-Toledo, Richard B. Chipman, Amy T. Gilbert

United States Department of Agriculture Wildlife Services: Staff Publications

The small Indian mongoose (Urva auropunctata) is a rabies reservoir on several Caribbean Islands including Puerto Rico. In the continental United States, oral rabies vaccination (ORV) has been used to control and locally eliminate rabies viruses targeting meso-carnivores including raccoons (Procyon lotor), grey foxes (Urocyon cinereoargenteus), and coyotes (Canis latrans), and has more recently been proposed to mitigate and control mongoose rabies in Puerto Rico. A fundamental understanding of the population density of the target species is an important factor in planning bait application rates prior to ORV operations. In Puerto Rico, …

The Failed Federalism Of Affordable Housing: Why States Don't Use Housing Vouchers, Noah Kazis

Articles

This Article uncovers a critical disjuncture in our system of providing affordable rental housing. At the federal level, the oldest, fiercest debate in low-income housing policy is between project-based and tenant-based subsidies: should the government help build new affordable housing projects or help renters afford homes on the private market? But at the state and local levels, it is as if this debate never took place. The federal government (following most experts) employs both strategies, embracing tenant-based assistance as more cost-effective and offering tenants greater choice and mobility. But this Article shows that state and local housing voucher programs are …

Race-Ing Antitrust, I. Bennett Capers, Gregory Day

Faculty Scholarship

Antitrust law has a race problem. To spot an antitrust violation, courts inquire into whether an act has degraded consumer welfare. Since anticompetitive practices are often assumed to enhance consumer welfare, antitrust offenses are rarely found. Key to this framework is that antitrust treats all consumers monolithically; that consumers are differently situated, especially along lines of race, simply is ignored.

We argue that antitrust law must disaggregate the term “consumer” to include those who disproportionately suffer from anticompetitive practices via a community welfare standard. As a starting point, we demonstrate that anticompetitive conduct has specifically been used as a tool …

Utilizing Ground-Penetrating Radar To Estimate The Spatial Distribution Of Snow Depth Over Lake Ice In Canada’S Sub-Arctic, Alicia Pouw

Theses and Dissertations (Comprehensive)

With the expected rise in air temperature, it becomes important to understand how snow will respond in different climate scenarios. The presence of snow over lake ice largely influences the ice thickness, and as Canada’s Arctic and sub-arctic regions are experiencing warming at twice the global rate, concerns rise as changes in the snowpack will significantly impact northern communities that rely on lake ice as a means of transportation, source for drinking water, and feeding their families. The distribution of snow depth is highly sensitive to changes in climate over time, as such a slight increase in air temperature or …

Wildlife Value Orientations And Recreation Conflict: A Focus On Hunters And Non-Hunters In Alberta, Canada, Yuvana Sequeira

Theses and Dissertations (Comprehensive)

Parks and other forms of protected areas are considered a vital tool in the effective conservation of biodiversity. These areas also provide important spaces for nature-based tourism and recreation (NBTR), where activities such as hiking, swimming, canoeing, and socializing with friends and family often occur. In some cases, hunting may also occur within a protected area, but there is little understanding of how such activities affect the experience and overall satisfaction of other recreationists (and vise-versa). While NBTR is a popular and growing industry, there is limited research in Canada about the values of tourists and recreationists and the …

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 …

The Vital Role Of Dehcho Dene Knowledges In Climate Change & Permafrost Thaw Adaptation In Jean Marie River First Nation Nwt, Mackenzie Bell

Theses and Dissertations (Comprehensive)

Across the globe climate change has become an issue of growing concern for both Indigenous and non – Indigenous peoples alike. In Northern Canada this narrative is no different. For Indigenous groups such as the Jean Marie River First Nation (JMRFN) anthropogenic climate change is not only a reality but is visible through their daily interactions with the environment around them. Additional insight pertaining to these climatic changes and their impacts can be found through analyzing the traditional knowledge systems of the JMRFN and how these before mentioned interactions have changed over time. This two-year participatory research project has investigated …

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 …

The Dynamic Relationship Between Permafrost And Landcover In Northwestern Canada’S Discontinuous Permafrost Zone, Olivia Carpino

Theses and Dissertations (Comprehensive)

Northwestern Canada’s subarctic is among the most impacted regions in the world as it is experiencing rapid climatic and environmental change. As a result, northwestern Canada has been experiencing region-wide permafrost thaw and disappearance, both of which are also occurring at unprecedented rates. Permafrost temperatures in the Taiga Plains have been warming steadily over the last several decades, which has been particularly detrimental across its lower latitudes of the discontinuous permafrost zone where the permafrost is already relatively thin and warm. These factors indicate that permafrost in the southern Taiga Plains may be in a state of disequilibrium with the …

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 …

“Bright Spots” And Effectively Communicating The Ecological And Social Outcomes Of Protected And Conserved Areas In Canada, Jen Hoesen

Theses and Dissertations (Comprehensive)

Healthy and resilient protected and conserved areas are the foundation of biodiversity conservation, improve livelihoods, and drive sustainable development. Protected lands and seascapes radiate life sustaining ecosystem services and provide important places for nature connection, rejuvenation, and inspiration. Although escalating human pressures and climate change-related risks continue to place many protected and conserved areas under increasing threat, “conservation bright spots” have emerged as a key communications strategy to illustrate where and how biodiversity and the social benefits it provides is performing relatively well. Given the crucial need to educate the public about biodiversity-related issues and amplify solution-centric approaches to support …

Nitrogen: Both A Potential Stimulator And Suppressor Of Cyanobacterial Blooms In Temperate Lakes, Catherine Goltz

Theses and Dissertations (Comprehensive)

Cyanobacterial blooms are complex phenomenon that are impacted and controlled by various factors such as lake depth, air temperature, wind, and nutrient loading. Nutrients such as phosphorus, nitrogen and iron all have very differing effects on cyanobacterial blooms. While phosphorus and iron are known to drive cyanobacterial biomass, nitrogen has been observed to have a direct impact on toxin synthesis. Nitrogen exists in the environment in many different forms such as atmospheric N₂, in inorganic forms such as nitrate and ammonium as well as in organic forms such as urea which can all affect cyanobacterial bloom development differently. …

A Machine Learning Approach To Classify Open Water And Ice Cover On Slave River Delta, Ida Moalemi

Theses and Dissertations (Comprehensive)

Seasonal temperature trend and ice phenology in Great Slave lake (GSL), are strongly influenced by warmer inflow from Slave river. The Slave river flows to GSL through Slave river delta (SRD), bringing a rise in temperature that triggers the ice break-up process of the lake. Slave river discharge is subject to multiple stressors including climate warming and upstream water activities, which in turn, directly affects the GSL break-up process. Consequently, monitoring the break-up process at SRD, where the river connects to the lake, serves as an indicator to better understand the cascading effects on GSL ice break-up. This research aims …

Geography, Not Lifestyle, Explains The Population Structure Of Free-Living And Host-Associated Deep-Sea Hydrothermal Vent Snail Symbionts, Michelle A. Hauer, Corrina Breusing, Elizabeth Trembath-Reichert, Julie A. Huber, Roxanne A. Beinart

Graduate School of Oceanography Faculty Publications

Background: Marine symbioses are predominantly established through horizontal acquisition of microbial symbionts from the environment. However, genetic and functional comparisons of free-living populations of symbionts to their host-associated counterparts are sparse. Here, we assembled the first genomes of the chemoautotrophic gammaproteobacterial symbionts affiliated with the deep-sea snail Alviniconcha hessleri from two separate hydrothermal vent fields of the Mariana Back-Arc Basin. We used phylogenomic and population genomic methods to assess sequence and gene content variation between free-living and host-associated symbionts.

Results: Our phylogenomic analyses show that the free-living and host-associated symbionts of A. hessleri from both vent fields are …

Megalopolis Bound?, Nestor M. Davidson

Faculty Scholarship

Since ancient Greece’s “megalopolis,” the concept of vast cities has loomed in the urban discourse. A century ago, English planner Patrick Geddes warned about a growing imbalance between traditional society and ever-larger conurbations, an anxiety that Lewis Mumford later invoked to predict that urban hubris would inevitably collapse of its own weight. In 1961, by contrast, the geographer Jean Gottman surveyed the interconnected agglomeration stretching from Washington, D.C. up the east coast of the United States to the cities of southern New England, and more optimistically highlighted this new urban form’s governance potential.

Today, the question is not whether urbanism …

Book Reviews, Michael D. Simants, Alberto I. Bonilla-Giovanett, Kenny R. Johnston, Zachariah S. Motts, Tyler Hallstrom, Marshall C. Johns

The Asbury Journal

No abstract provided.

Journey “Box” Assignment Description, David Wolff

Open Educational Resources - Teaching and Learning

The Journey “Box” allows preservice teachers to explore and share their own historical narrative as they different aspects of their own family’s journey to America. The Journey “Box” first asks preservice teachers to explore themes by reading children’s literature and then positions preservice teachers as interviewers as they seek out different facets of their family’s historical narrative from members of their family. Preservice teachers then use their experience with a Journey “Box” to design an inquiry that could be used in their field experience. The Journey “Box” integrates social studies standards and best practices with ELA standards.

Floral And Genetic Divergence Across Environmental Gradients Is Moderated By Inter-Population Gene Flow In Platanthera Dilatata (Orchidaceae), Lisa E. Wallace, Marlin L. Bowles

Biological Sciences Faculty Publications

Understanding how natural selection acts on intraspecific variation to bring about phenotypic divergence is critical to understanding processes of evolutionary diversification. The orchid family is well known for pollinator-mediated selection of floral phenotypes operating among species and along environmental or geographic gradients. Its effectiveness at small spatial scales is less understood, making the geographic scale at which intraspecific floral variation is examined important to evaluating causes of phenotypic divergence. In this study, we quantified phenotypic variation in the orchid Platanthera dilatata across 26 populations in coastal Southeast Alaska and compared this to edaphic and genetic variation at microsatellite loci. We …

Implicit Racial Bias: A Human Computer Interaction Study Using Eye Tracker, Wenfan Zhang

Master's Projects

Contemporary Human-Computer Interaction (HCI) research has an increasing emphasis on reducing ethnicity bias. The study presents a new method to explore and reduce biases using detailed experiments. The experimental procedure involves presenting participants with images of ethnically diverse characters across three conditions. The study's results significantly illuminate ethnicity bias in character selection dynamics. Participants exposed to targeted training interventions displayed a significant shift in preferences for characters engaged in intellectual activities. Notably, this shift was influenced by the ethnicity of the characters involved. Interestingly, the eye-tracking data unveiled distinct patterns of cognitive load, characterized by slower response times and greater …

Analyzing The Benthic Cover Of Crustose Coralline Algae Using Mask-R Cnn, Rachana Ravindra

Master's Projects

Coral reefs, supporting 25% of marine biodiversity, confront challenges from local and global impacts like overfishing, runoff, acidification, and warming. Crustose Coralline Algae (CCA), pivotal for reef structure and coral settlement, are underrepresented in research. Current methods like Coral Point Count with Excel Extensions (CPCe) have limitations, relying on image quality and being time-consuming. This paper proposes computer vision and Mask R-CNN, a supervised machine learning model, for CCA analysis in reef images, considering color, texture, and shape. Results indicate promise in clustering and classifying organisms. The innovative technology reduces manual labor, enhancing image analysis, simplifying the understanding of CCA’s …