Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 4741 - 4770 of 42028

Full-Text Articles in Entire DC Network

Exploring Tensions Between Two Maine Landscapes: Toxic And Pristine, Caitlyn Elizabeth Hanley May 2023

Exploring Tensions Between Two Maine Landscapes: Toxic And Pristine, Caitlyn Elizabeth Hanley

Standard Theses

This thesis juxtaposes a historical account of environmental toxicity in Maine against the popular notion of Maine as a “Vacationland.” Maine is famous globally for its pristine aesthetics, iconic coastline, and vast wilderness. Because of this, tourism is amongst the largest economic sectors for Maine, much different from the complex industrial history that once drove the economy and built a strong foundation for the state. Public discourse advertises Maine as a “Vacationland,” capitalizing on its natural features while ignoring and even marginalizing the toxic history of Maine which is still impacting communities today. This idyllic visage of Maine contradicts the …


Etuaptmumk: A Means To Advance Indigenous Economic Development “In A Good Way”, Frankie Young May 2023

Etuaptmumk: A Means To Advance Indigenous Economic Development “In A Good Way”, Frankie Young

Dalhousie Law Journal

A reckoning is required on how Eurocentric laws and economic systems are biased toward Western worldviews while not accounting for Indigenous realities, legal orders, or economic perspectives. Most notably, Eurocentric laws have been instrumental in advancing non-Indigenous economic interests to the detriment of Indigenous interests, largely because Indigenous laws have not been respected. The strengthening of certain Eurocentric property and contract laws have limited Indigenous peoples’ legal and economic interests and continues to constrain positive economic outcomes and advancement for Indigenous nations. This article argues that re-centering Indigenous legal traditions is a means to advance Indigenous economic interests. The principle …


Preconstruction Support Cost Hours Estimating On Caltrans Pavement Rehabilitation Projects, Nigel Blampied, Tariq Shehab, Elhami Nasr, Laxmi Sindhu Samudrala May 2023

Preconstruction Support Cost Hours Estimating On Caltrans Pavement Rehabilitation Projects, Nigel Blampied, Tariq Shehab, Elhami Nasr, Laxmi Sindhu Samudrala

Mineta Transportation Institute

Because the construction phase accounts for the majority of project costs for pavement rehabilitation projects, most research on infrastructure project cost estimating focuses on that phase, rather than on the preconstruction phases. Nevertheless, costs incurred prior to construction, referred to in this report as "preconstruction costs" are significant and worthy of consideration (See Section 2.1 of the report for a more detailed and precise definition of preconstruction). In the 20202021 fiscal year, for instance, the California Department of Transportation (Caltrans) spent more than $169 million on preconstruction work for pavement rehabilitation projects. This report presents the results of a study …


Using Imagery Collected By An Unmanned Aerial System To Monitor Cyanobacteria In New Hampshire, Usa, Lakes, Christine Bunyon May 2023

Using Imagery Collected By An Unmanned Aerial System To Monitor Cyanobacteria In New Hampshire, Usa, Lakes, Christine Bunyon

Master's Theses and Capstones

With the increasing occurrence and growing public health concern that cyanobacteria blooms pose, it is crucial that we continue to explore ways to improve our ability to accurately, efficiently, and safely monitor water quality in impacted lakes. Also known as blue-green algae, cyanobacteria are naturally occurring in many waters globally. Cyanobacteria harmful algal blooms (CHABs) release various toxins which can cause skin irritations and dog fatalities while the effects of long-term exposure to the neurotoxins for humans has stirred additional studies. Although possibly harmful if CHABs are present, monitoring this biological component is nonetheless an integral factor when studying freshwater …


Legacy Effects Of Land Cover And Land Use On Painted Turtle (Chrysemys Picta) Populations Over A 20-Year Period In Southeastern New Hampshire, Benjamin Phillips May 2023

Legacy Effects Of Land Cover And Land Use On Painted Turtle (Chrysemys Picta) Populations Over A 20-Year Period In Southeastern New Hampshire, Benjamin Phillips

Master's Theses and Capstones

More than half of all freshwater turtles and tortoises are threatened with extinction. Human land use practices and land cover conversion often decrease adult turtle survivorship and dampen the reproductive potential of turtle populations. The ability to make informed conservation and management decisions depends on understanding the relative impacts of different landscape contexts on turtle populations, and the spatial extent over which they have an impact. We surveyed painted turtle (Chrysemys picta) populations along an urbanization gradient in southeastern New Hampshire, USA to assess the relative impact of land cover, land use, and chemical contaminants on population density and sex …


Characterization Of Arthropod Communities And The Environmental Variables That Influence Them, Christopher Ziadeh May 2023

Characterization Of Arthropod Communities And The Environmental Variables That Influence Them, Christopher Ziadeh

Master's Theses and Capstones

Arthropods are active during the winter in temperate regions, and many use seasonal snowpack to buffer themselves from harsh ambient conditions in a refugium known as the subnivium, an area that occurs under the snowpack and above the soil. This thesis focuses on subnivium arthropod communities, how they differ from summer communities, and how silvicultural management influences these communities. Arthropods were collected using modified pitfall traps from the Second College Grant, a forested township in northern New Hampshire which has areas of land dedicated to the Adaptive Silviculture for Climate Change study. In the first chapter of this thesis we …


The Forest For The Trees: How A Local Arboretum Shapes Rhetoric And Discourse Surrounding Environmentalism., Cooper Day May 2023

The Forest For The Trees: How A Local Arboretum Shapes Rhetoric And Discourse Surrounding Environmentalism., Cooper Day

Electronic Theses and Dissertations

Environmental communication has been situated as a crisis discipline; however, scholars have recently explored how to shift to include care within the discipline. To be sure, this does not mean the crisis element should be abandoned, but, instead coupled with care so that environmental messages are positive and forward looking. This project contributes to this shift by looking at how green spaces are constructed to deliver messages of environmental care. More specifically, I analyze how Bernheim Arboretum and Research Forest, located about 30 miles South of Louisville, KY, has been constructed and works to promote environmental care in a variety …


The Effect Of Algal Wastewater Treatment Systems On Microbial Communities, Alexis Leach May 2023

The Effect Of Algal Wastewater Treatment Systems On Microbial Communities, Alexis Leach

University Honors Program Senior Projects

In collaboration with the Metropolitan Water Reclamation District of Greater Chicago and Gross-Wen Technologies, I examined the microbial communities in experimental tertiary wastewater treatment systems employing algal phytoremediation. Three algal phytoremediation systems were examined: two vertical conveyor belt systems, known as the 10-foot belt system and the series 4 system, and a third system lacking a converter belt in which planktonic algae grew in a control pond. I used EcoPlates to measure carbon substrate utilization by microorganisms in each system. EcoPlates contain thirty-one different carbon substrates, with a dye that indicates microbial use of each substrate. I conducted a Principal …


Expanding Volunteer Program Effectiveness In Refugee Resettlement, Julianna Kantner May 2023

Expanding Volunteer Program Effectiveness In Refugee Resettlement, Julianna Kantner

International and Global Studies Undergraduate Honors Theses

The Department of Health and Human Services found that refugee resettlement results in a net positive fiscal impact of approximately $63.0 billion over a ten-year period. Meanwhile, refugees are one of the most highly vetted groups of people immigrating to the United States, enduring a screening process that lasts approximately 2 years. Despite this, anti-refugee sentiments and fluctuating federal support hinders the long-term success of refugee resettlement agencies (RRAs) and support organizations. Successful volunteer programs are critical in maintaining the long-term aid of refugees and advocacy for reliable federal support. The need for successful volunteer programs is especially prevalent in …


Honors Research May 2023

Honors Research

The Synapse: Intercollegiate science magazine

No abstract provided.


Learning Documentary Film Production By Doing, Erin Lucille Grasty May 2023

Learning Documentary Film Production By Doing, Erin Lucille Grasty

Journalism

No abstract provided.


Field Observations And Stable Isotope Analysis Of Alunite At The Sulphur Bank Mercury Mine, Clear Lake, California, David Edward Muller May 2023

Field Observations And Stable Isotope Analysis Of Alunite At The Sulphur Bank Mercury Mine, Clear Lake, California, David Edward Muller

Open Access Theses & Dissertations

The Sulphur Bank mercury mine is a historic mine located in Lake County, California, first exploited in the 1860s. Underground mining of mercury took place from 1873 to 1906 and open-pit mining of mercury was done from 1927 to 1957. The U.S. Environmental Protection Agency listed the Sulphur Bank mine and the adjacent Clear Lake as a Superfund site in 1990 due to mercury contamination at the mine site and in the sediment and food web of Clear Lake. Previous studies have described the vein material mineralogy and wall-rock alteration at Sulphur Bank as well as the composition of water …


Information And Communications Technology Within Coastal Resilience Planning Frameworks: The Case Of Jamaica, A Small Island Developing State, Ren-Neasha R. Blake Gilmore May 2023

Information And Communications Technology Within Coastal Resilience Planning Frameworks: The Case Of Jamaica, A Small Island Developing State, Ren-Neasha R. Blake Gilmore

School of Public Service Theses & Dissertations

Coastal areas increasingly grapple with coastal hazards like hurricanes, tropical storms, sea level rise, and flooding. Proactive and agile coastal resilience solutions are necessary to reduce such risks and their associated socio-economic and environmental impacts. For these reasons, global coastal planners are pursuing climate action through multi-sector collaborations, innovative hybrid natural and manufactured solutions, and feasible mid to long-term coastal resilience strategies. While climate action is high on governments’ agenda globally, integrating information and communications technology has diffused widely within the coastal planning space in small island developing states, drawing on more technology-driven solutions. Very few empirical studies in the …


The Impact Of Hands-On Environmental Science Lessons On Middle School Students Learning, Molly Mansfield May 2023

The Impact Of Hands-On Environmental Science Lessons On Middle School Students Learning, Molly Mansfield

Capstone Projects and Master's Theses

This capstone research focuses on the impact of hands-on environmental science lessons on middle school students learning. In this research project, besides conducting an extensive literature review, I collaborated with five middle school educators in a local school district to understand how student engagement and retention are affected by hands-on science material and surveyed 151 7th-grade students. This senior capstone explores the individual experiences of middle school students, their relationship to science education, and possible future implications of their learning. Many aspects of a student’s personal and educational life can positively or negatively impact their relationship with science and their …


When Fish Climb Trees: Discovering Resources For Students With Attention Deficit Hyperactivity Disorder, Mary Black May 2023

When Fish Climb Trees: Discovering Resources For Students With Attention Deficit Hyperactivity Disorder, Mary Black

Capstone Projects and Master's Theses

The focus issue addressed in this Capstone Project is determining what resources are available to college students diagnosed with Attention Deficit Hyperactivity Disorder (ADHD). This is an important issue for colleges because the right resources can make all the difference regarding the academic success of students with ADHD. An evidence based argument is offered on the necessity of appropriate resources for college students with ADHD. The primary stakeholder perspectives chosen were those of college students with ADHD, and staff members of the Counseling and Disability centers on campus because of their relevant experience and insight regarding ADHD. Three action options …


Determining Habitat Preferences Of Dasypus Novemcinctus And Assessing Prevalence Of Hansen's Disease In Tennessee With Assistance From Community Science Data, Carissa Turner May 2023

Determining Habitat Preferences Of Dasypus Novemcinctus And Assessing Prevalence Of Hansen's Disease In Tennessee With Assistance From Community Science Data, Carissa Turner

Masters Theses and Doctoral Dissertations

The nine-banded armadillo (Dasypus novemcinctus L.) is currently considered an invasive species in parts of its range in the United States. As it continues to expand its range, more states may begin to consider armadillos an invasive or nuisance species and will need to make management decisions regarding this species as (1) a pest for landowners or land managers, (2) a possible threat to other species of conservation concern, and (3) a vector for Hansen’s disease (leprosy). Although research funds are scarce for a species that is currently not seen as a threat or an endangered animal, there are ways …


Disaster Risk Perception, Climate Change Awareness, And Disaster Preparedness Among University Of Texas Rio Grande Valley Students, Anandita Roy May 2023

Disaster Risk Perception, Climate Change Awareness, And Disaster Preparedness Among University Of Texas Rio Grande Valley Students, Anandita Roy

Theses and Dissertations

University students are usually young and have low-income resources, live in dormitories or low-rent housing near the university, and have little to no disaster experience. Therefore, they are vulnerable to disasters due to a lack of resources for preparation. To better understand the vulnerability of students to disasters, the study aims to assess the perceptions of disaster risk, climate change awareness, and the level of disaster preparedness of students at the University of Texas Rio Grande Valley (UTRGV). In this study, we collected data from 320 students who participated in an online survey. The study’s findings provide an understanding of …


Environmental Education In Informal Learning Spaces: Integration, Design, And Access, Maya S. Gutierrez May 2023

Environmental Education In Informal Learning Spaces: Integration, Design, And Access, Maya S. Gutierrez

Graduate Student Portfolios, Professional Papers, and Capstone Projects

In this portfolio, I will focus on using learning spaces to facilitate environmental education and promote environmental literacy. I will discuss the incorporation of the framework of environmental education into an experiential and informal learning environment; the creation of a curriculum that fuses formal and informal learning, providing upper elementary students opportunities to participate in hands-on experiential learning opportunities of environmental education; and the direct and indirect benefits nature-based experiences can provide when implemented into a therapeutic group home. Embedded throughout is an environmental education framework that has been adapted for the diverse setting and requirements of the respective organization …


Community Food Security Strategies In Montana: Exploring Practices And Policies, Andrew T. Besser May 2023

Community Food Security Strategies In Montana: Exploring Practices And Policies, Andrew T. Besser

Graduate Student Portfolios, Professional Papers, and Capstone Projects

No abstract provided.


Economic Impact Assessment Of Nature-Based Coastal Resilience Solutions In Charleston. Estimating Local Economic Effects With Algorithm-Based Supporting Tool., Oksana Veselkova May 2023

Economic Impact Assessment Of Nature-Based Coastal Resilience Solutions In Charleston. Estimating Local Economic Effects With Algorithm-Based Supporting Tool., Oksana Veselkova

All Theses

Coastal cities are at the forefront of the risks induced by climate change. Local communities are adversely affected, but the essential cultural assets and economies are also at risk of damage or destruction. In the efforts to limit hazard risk exposure, local governments are increasingly planning for long-term flood protection. One prospective flood risk mitigation measure is living shorelines or nature-based adaptation. The coastal ecosystems, such as beaches, wetlands, barrier islands, oyster reefs, and salt marshes, deliver multiple benefits to communities, including recreation, natural resources, freshwater, and carbon sequestration. Moreover, when combined with structural solutions, they can effectively reduce water …


The Well-Tempered Android: Philosophical Posthumanism In Science Fiction Cinema., Cody Gault May 2023

The Well-Tempered Android: Philosophical Posthumanism In Science Fiction Cinema., Cody Gault

Electronic Theses and Dissertations

This dissertation examines philosophical posthumanism as a means for critical analysis of the interaction between humans and nonhuman androids in select science fiction cinematic universes. The interaction is analyzed through several facets, notably the interactions between humans and nonhuman androids, particularly as interactions between the human and nonhuman are often sites of violence. Chapter one is an introduction. Chapter two describes the development of philosophical posthumanism from humanism, also including an analysis of philosophical posthumanism, and how it can be used as a critical lens. Chapter three begins an analysis of science fiction cinema by examining the Blade Runner films …


Antarctic Peninsula Ice Sheet Dynamics In The Pliocene From Sedimentological Interpretation Of Ocean Drilling Program Site 1097, Ridley Joseph May 2023

Antarctic Peninsula Ice Sheet Dynamics In The Pliocene From Sedimentological Interpretation Of Ocean Drilling Program Site 1097, Ridley Joseph

Theses, Dissertations and Culminating Projects

Studying ice sheet behavior during the Pliocene Epoch is of great importance. The Early Pliocene was characterized by warm climatic conditions, similar carbon dioxide levels and high sea levels compared to the present. This time frame provides essential information on the foreseeable future of Earth’s cryosphere, particularly if climate change continues to persist. The sedimentary record of the Antarctic Peninsula Ice Sheet (APIS) is the focus of this study. At Ocean Drilling Program (ODP) Site 1097, cores were drilled into Pliocene strata at a shallow depth on the Antarctic Peninsula continental shelf. Sedimentary facies were interpreted, and twenty samples were …


Investigation Of Microplastics In River Bottom Sediment Along The Musconetcong River, Nicole Perkins May 2023

Investigation Of Microplastics In River Bottom Sediment Along The Musconetcong River, Nicole Perkins

Theses, Dissertations and Culminating Projects

The knowledge of microplastics remains limited since there are scientific challenges in understanding long-term effects and health risks associated with microplastics in all environments. Challenges associated with microplastics investigations include limited approaches to microplastics sampling and analyses, understanding long‐term behavior of microplastics, the organismal and ecosystem health risks, and finding alternatives to using plastic. The research on microplastics has focused mainly on microplastics abundance and distribution in the environment, while their transport and pathways have remained rather understudied. The goal of this study was to expand our knowledge of microplastics in river sediment.

This microplastics investigation consisted of sampling the …


Assessment Of Phytoplankton Assemblages And Harmful Algal Blooms In New Jersey, Yaritza Acosta Caraballo May 2023

Assessment Of Phytoplankton Assemblages And Harmful Algal Blooms In New Jersey, Yaritza Acosta Caraballo

Theses, Dissertations and Culminating Projects

Urbanization, industrialization, and climate change have played a major role in the pollution of waterways, leading to a global increasing trend of harmful algal blooms (HAB) while jeopardizing water quality. Phytoplankton and HAB were evaluated within the highly urbanized and historically polluted state of New Jersey to help provide statewide baseline data for HAB and water quality management. A total of three studies were included in this dissertation. In the first study, phytoplankton communities were characterized in freshwaters of New Jersey during the cyanobacterial HAB season and their relationships to water quality at both statewide and ecoregion levels were examined. …


Seasonal Variations In Nutrient And Total Suspended Solids Sources And Fluxes In Rivers Of Northern New Jersey And Newark Bay, Usa, Jing Nie May 2023

Seasonal Variations In Nutrient And Total Suspended Solids Sources And Fluxes In Rivers Of Northern New Jersey And Newark Bay, Usa, Jing Nie

Theses, Dissertations and Culminating Projects

In recent decades, aquatic systems have experienced major problems with water quality due to high nutrient concentrations from both point and non-point sources resulting from industrialization, urbanization, and population growth. While nutrient pollution due to land use change cannot be ignored, point sources such as combined sewer overflows and discharging sites have also contributed to the problem. Integrated hydrodynamic, chemical, and biological models have been developed to simulate nutrient transportation from both sources. This paper reviews and analyzes water quality data from published literature to evaluate nutrient pollution in aquatic systems and emphasizes the need for a continuously developed integrated …


Potential Of Increased Thermal Tolerance As A Response To Acute Heat Stress In A Disease-Transmitting Mosquito Species, Nicole Ashley Scanlon May 2023

Potential Of Increased Thermal Tolerance As A Response To Acute Heat Stress In A Disease-Transmitting Mosquito Species, Nicole Ashley Scanlon

Theses, Dissertations and Culminating Projects

Each year hundreds of millions of people are infected with mosquito-borne illnesses. West Nile Virus is the leading cause of mosquito-borne diseases in the United States (McDonald et al., 2021). The first case of West Nile Virus was detected in the United States in 1999 (Sejvar, 2003). Since that time the number of cases has dramatically risen. Mosquitoes are ectotherms which means their body temperature is dependent on the thermal conditions outside of their body. Because of this they are very sensitive to changes in their environment. The Earth’s average temperature has been slowly but steadily rising. This small but …


Causal Modeling Framework For Nuclear Power Plant Licensing Process, Lauren Kimberly Kiser May 2023

Causal Modeling Framework For Nuclear Power Plant Licensing Process, Lauren Kimberly Kiser

Theses and Dissertations

Interests in clean energy revived the nuclear power industry. For the first time in decades, innovative technologies and plant designs are being considered by regulatory agencies. This dissertation explores a Bayesian Network and AHP approach to causal modeling of the Combined License review process for new nuclear power plants (NPP). Historically lengthy and expensive, NPP licensing is critical to ensuring safe operation of the plants. With this comes a high standard for applicants to reach that can result in multiple revision cycles and long review times. New plant designs and fluctuating public support lead to a complex and dynamic series …


Effect On Focusing Fields By Ferromagnetic Cell Cores In Linear Induction Accelerators, Cooper Guillaume May 2023

Effect On Focusing Fields By Ferromagnetic Cell Cores In Linear Induction Accelerators, Cooper Guillaume

Senior Honors Theses

In the Los Alamos National Laboratories DARHT facility, there are two perpendicular linear induction accelerators, LIAs. The LIAs’ solenoids produce magnetic fields which focus the electron beam. Simultaneously, the accelerating pulse creates a magnetic field. These two field intensities act upon a ferromagnetic material in the cells to enhance magnetic flux density. Due to the nonlinearity of the material, this flux density will reach a saturation point. In turn, the magnetic field intensity of the axial solenoidal magnetic field will be affected and slightly altered. The width of the electron beam will increase, causing a decrease in effectiveness. Through simulation, …


Tmc Library Gale Databases, Joanne Romano May 2023

Tmc Library Gale Databases, Joanne Romano

TMC Library Newsletter (2015-)

The TMC Library has a comprehensive collection of Gale databases provided by the TexShare consortium. The TexShare Databases are electronic resources licensed for the exclusive use of Texas libraries and their patrons.


Using Linkedin To Promote Effective Corporate Social Responsibility Communication Through The B2b Supply Chain, Eden Wallace May 2023

Using Linkedin To Promote Effective Corporate Social Responsibility Communication Through The B2b Supply Chain, Eden Wallace

All Theses

Utilizing LinkedIn as a communication tool for Corporate Social Responsibility (CSR) communications is a relatively unknown area of CSR research. However, existing scholarship and current business trends suggest that LinkedIn may be beneficial for business to business (B2B) companies to communicate to their corporate partners. Findings from this study advance communication scholarship in this relatively new area of research and provide new understanding in how LinkedIn can be used by companies to strengthen business operations pertaining to corporate social responsibility. This thesis examines how Equinix, a B2B company, communicates its socially responsible initiatives on LinkedIn and to what extent its …