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Antisemitic Terrorism, J. Richard Broughton Jan 2024

Antisemitic Terrorism, J. Richard Broughton

Lewis & Clark Law Review

Recent surges in antisemitic activity—and antisemitic violence, in particular—have led increasingly to conversations about the connections between antisemitism and domestic terrorism. While the nexus between antisemitic violence and domestic terrorism has long been expressed in rhetorical terms, its connection in legal terms—notably, federal criminal law—has been more attenuated. This Article explores that connection and finds that existing federal criminal law requires rethinking: it is underinclusive and thus inadequate to fully capture and punish the threats posed by today’s domestic violent extremism, and particularly antisemitic violence. The Article surveys recent federal prosecution in cases involving actual or threatened antisemitic violence, and …


Applying The Public Trust Doctrine To Local Governments, Talia O. Thuet Jan 2024

Applying The Public Trust Doctrine To Local Governments, Talia O. Thuet

Lewis & Clark Law Review

Under the public trust doctrine, the government holds public lands in trust for the public and cannot unreasonably restrict citizens from accessing them or otherwise breach its duties as a trustee. The public trust doctrine is often thought of as a state law doctrine. However, local governments own a significant portion of public land. Some local governments argue that the public trust doctrine does not apply to them because the state is the proper trustee under the public trust doctrine. This Comment argues that the public trust doctrine applies to local governments. State law preempts local government law on matters …


Repairing The Family Law Attorney, Daniel F. Bousquet Jan 2024

Repairing The Family Law Attorney, Daniel F. Bousquet

Lewis & Clark Law Review

Professor Clare Huntington’s scholarship advances a theoretical “Reparative Model” of family law that seeks to deemphasize adversarial decision-making and decrease litigation. Building off that scholarship, this Article considers the family law attorney’s role and argues that the current Model Rules of Professional Conduct already support—and should be understood to require—a “reparative” advisory role for the family law attorney. Put simply, the harsh realities of the adversarial court system demand that family law attorneys presumptively provide information on litigation’s harmful impacts on families and children and encourage the possibility of pursuing goals via means less detrimental than litigation. To encourage a …


Løvetann/Tvntēli'on/Beàrnan-Brìde/Paardebloem: Decolonization Through Heritage, Brooke Howton Jan 2024

Løvetann/Tvntēli'on/Beàrnan-Brìde/Paardebloem: Decolonization Through Heritage, Brooke Howton

Undergraduate Honors Theses

Through their lifelong passion for genealogy, Brooke “Uisce'' Howton researches a way to dismantle White supremacy and colonization through analyzing and reconnecting to their heritage. This involves learning about the nature of White supremacy, which is ever present in American society, and gaining a better understanding of what the history of racial formations in the United States looked like. Through this new lens, she revisits old traditions that she had been able to experience, mostly through her maternal family; all while learning new traditions that she has been unable to experience due to the adoption of her paternal grandmother, mystery …


Cervical Cancer Education & Prevention For Women In The Philippines, Kate Isabel Juanillo Jan 2024

Cervical Cancer Education & Prevention For Women In The Philippines, Kate Isabel Juanillo

Nursing | Senior Theses

Although cervical cancer is preventable, it continues to pose a significant health concern in the Philippines as evidenced by high cervical cancer diagnosis rates. The purpose of this quantitative study is to investigate low cervical cancer screening rates and the effectiveness of educational interventions in increasing awareness and screening rates. A literature review will examine topics such as low cervical cancer screening rates, cervical cancer screening methods, and barriers. This research proposal involves a quasi-experimental study that investigates education as an intervention for increasing cervical cancer awareness and cervical cancer screening rates. Fifty Filipino women will be randomly assigned to …


Asbury Theological Seminary Academic Catalog : 2024-2025, Asbury Theological Seminary Jan 2024

Asbury Theological Seminary Academic Catalog : 2024-2025, Asbury Theological Seminary

Academic Catalogs

No abstract provided.


Assembly And Analysis Of Space Biofilm-Forming Bacterial Model Organisms Towards The Treatment Of Water System Biofilms, Yo-Ann VéLez Justiniano Jan 2024

Assembly And Analysis Of Space Biofilm-Forming Bacterial Model Organisms Towards The Treatment Of Water System Biofilms, Yo-Ann VéLez Justiniano

Dissertations

Space exploration imposes unique challenges on the human body and engineered systems alike. One such challenge is the control of microbial life, specifically biofilms, within the water processor assembly of the International Space Station (ISS). This investigation aimed to determine the feasibility of using an innovative bioremediation approach to mitigate biofilm growth in the water processor assembly. This approach entails the dissemination of a desired anti-biofilm gene across the microbial population of the water processor assembly through horizontal gene transfer via conjugation. To ascertain the viability of this method, the research was divided into two primary focuses. The first part …


The Structural Basis Of Inflammation : Computational Characterization Of Molecular Mechanisms, Sara W. Jackson Jan 2024

The Structural Basis Of Inflammation : Computational Characterization Of Molecular Mechanisms, Sara W. Jackson

Dissertations

Computational tools are useful in the interpretation and analysis of experimental data. In the world of structural biophysics, computational tools go a bit further: they can simulate atomic motions and molecular interactions based on experimentally-determined biomolecule structures, therein describing natural phenomena, and inspiring the formulation of new hypotheses. In this work, computational structural biology tools are used to answer questions about molecules of inflammatory importance. Quantum chemistry computational tools are used to determine the electronic structure of sesamin, a component of many diets which may be a modulator of an enzyme involved in the metabolism of inflammation mediators. Virtual docking …


The Capacity Of An Unfaltering Duress: America's Lost Love Stories, Seth Shimmelfarb-Wells Jan 2024

The Capacity Of An Unfaltering Duress: America's Lost Love Stories, Seth Shimmelfarb-Wells

English Honors Papers

This thesis interrogates the imbrication between negative subjectivity and the fiction writing of Gayl Jones. In doing so, this work reimagines conceptions of intimate and interpersonal love, community, and retributive violence in the face of conditional (anti)Blackness. Through an engagement with contemporary scholars of Black Studies and with the help of the abundant archive of Black music, this project aims to prioritize, reproduce, and heed to Black Artistic registers of feeling that embrace duress, destruction, and madness. Through her literary performance, Jones reproduces and fabulates moments of Black social life that expand and simultaneously shatter our conception of a given …


The Misleading Successes Of Cost-Benefit Analysis In Environmental Policy, David E. Adelman, Amy Sinden Jan 2024

The Misleading Successes Of Cost-Benefit Analysis In Environmental Policy, David E. Adelman, Amy Sinden

Michigan Journal of Environmental & Administrative Law

This Article critically examines the rise of cost-benefit analysis (CBA) in environmental policy and the profound disconnect that has persisted between the actual practice of CBA and its normative grounding. Although CBA is now synonymous with rational decision-making in federal agencies, this has not always been the case. Views about CBA have evolved from bipartisan rejection in the 1970s, to partisan division (Republicans for, Democrats against) during the Reagan-Bush years, to a broad embrace of CBA in the mid-1990s, when centrist legal scholars were instrumental in crafting a new defense of CBA based on a mix of welfare economics and …


The Kitchen In The Church Complex: Work And Sacred Space At ‘Ain El-Gedida, Dana Robinson Jan 2024

The Kitchen In The Church Complex: Work And Sacred Space At ‘Ain El-Gedida, Dana Robinson

Faculty Publications - Department of History and Politics

The fourth-century church complex at ‘Ain el-Gedida, in the Dakhleh Oasis, provides a striking case study for the integration of kitchen work into social and religious space in late antiquity. Its unique features – both sociological and archaeological – reflect a dynamic, rough-and-tumble integration that both protects the sacred space of the nave and centres the productive labour of cooking. This article analyses the anteroom/kitchen B6 from the perspectives of space syntax, the communicative landscape of labour, and the sociology of graffiti. While it may have been designed as a transitional zone or service auxiliary for the primary public spaces …


The Conflicting Needs Of Now And Forever: Designing Streaming Media Services At An Academic Library, John Abresch, Leetta Schmidt Jan 2024

The Conflicting Needs Of Now And Forever: Designing Streaming Media Services At An Academic Library, John Abresch, Leetta Schmidt

USF Libraries Faculty and Staff Publications

Fulfilling requests for media content in support of classroom and faculty research activities is demanding for academic libraries. Libraries strive to meet requests for media while working with challenges such as intellectual property license contracts, advances in digital communication technologies and copyright issues. This article provides an in-depth look at the changing demands of collections and services in addressing faculty requests for media, and outlines both a collection and a service strategy developed by librarians at the University of South Florida Libraries to provide faculty and students with access to diverse media titles in formats ranging from physical to streaming.


Serine Proteinase Inhibitors From Nicotiana Benthamiana, A Nonpreferred Host Plant, Inhibit The Growth Of Myzus Persicae (Green Peach Aphid), Honglin Feng, Georg Jander Jan 2024

Serine Proteinase Inhibitors From Nicotiana Benthamiana, A Nonpreferred Host Plant, Inhibit The Growth Of Myzus Persicae (Green Peach Aphid), Honglin Feng, Georg Jander

Faculty Publications

BACKGROUND: The green peach aphid (Myzus persicae) is a severe agricultural crop pest that has developed resistance to most current control methods, requiring the urgent development of novel strategies. Plant proteinase inhibitors (PINs) are small proteins that protect plants against pathogens and/or herbivores, likely by preventing efficient protein digestion. RESULTS: We identified 67 protease genes in the transcriptomes of three M. persicae lineages (USDA-Red, G002 and G006). Comparison of gene expression levels in aphid guts and whole aphids showed that several proteases, including a highly expressed serine protease, are significantly overexpressed in the guts. Furthermore, we identified three genes encoding …


Registration Of ‘Ho 13-739’ Sugarcane, James R. Todd, Anna L. Hale, Yong Bao Pan, Thomas L. Tew, William H. White, Edwis O. Dufrene, Michael P. Grisham, Jeff Hoy, Hannah J. Penn, Blake Wilson, Albert Orgeron, Herman Waguespack, Michael Pontif, Kenneth A. Gravois, Windell R. Jackson, Michael J. Duet, Cory Landry, David L. Verdun Jan 2024

Registration Of ‘Ho 13-739’ Sugarcane, James R. Todd, Anna L. Hale, Yong Bao Pan, Thomas L. Tew, William H. White, Edwis O. Dufrene, Michael P. Grisham, Jeff Hoy, Hannah J. Penn, Blake Wilson, Albert Orgeron, Herman Waguespack, Michael Pontif, Kenneth A. Gravois, Windell R. Jackson, Michael J. Duet, Cory Landry, David L. Verdun

Faculty Publications

‘Ho 13-739’ (Reg. no. CV-214, PI 703499) sugarcane (a Saccharum spp. complex polyploid) was selected and evaluated by scientists at the USDA-ARS in Houma, LA, in cooperation with the Louisiana State University Agricultural Center and the American Sugar Cane League, Inc. It was released to growers in Louisiana in 2020. Results from evaluations in plant-cane and first- and second-ratoon crops at 13 field locations revealed that sucrose content and stalk weight of Ho 13-739 were significantly greater than ‘L 01-299’ in every crop and across the crop cycle. Sucrose yield was not significantly different than L 01-299 for all crops …


Diving At High Altitude: O2 Transport And Utilization In The Ruddy Duck And Torrent Duck In The Andes, Kevin G. Mccracken, Graham R. Scott, Luis Alza, Andrea Astie, Ciska Bakkeren, Emil Bautista, Mariana Bulgarella, Rebecca Cheek G. Cheek, Beverly A. Chua, Neal J. Dawson, Alexis Diaz, Catherine M. Ivy, Peter B. Frappell, Cecilia Kopuchian, Sabine L. Laguë, John N. Maina, Violeta Muñoz-Fuentes, Elizabeth R. Schell, Matthew M. Smith, Ryan J. Sprenger, Pablo L. Tubaro, Elizabeth R. Schell, Matthew M. Smith, Ryan J. Sprenger, Pablo L. Tubaro, Thomas Valqui, Roy E. Weber, Daniela Wilner, Robert E. Wilson, Julia M. York, William K. Milsom Jan 2024

Diving At High Altitude: O2 Transport And Utilization In The Ruddy Duck And Torrent Duck In The Andes, Kevin G. Mccracken, Graham R. Scott, Luis Alza, Andrea Astie, Ciska Bakkeren, Emil Bautista, Mariana Bulgarella, Rebecca Cheek G. Cheek, Beverly A. Chua, Neal J. Dawson, Alexis Diaz, Catherine M. Ivy, Peter B. Frappell, Cecilia Kopuchian, Sabine L. Laguë, John N. Maina, Violeta Muñoz-Fuentes, Elizabeth R. Schell, Matthew M. Smith, Ryan J. Sprenger, Pablo L. Tubaro, Elizabeth R. Schell, Matthew M. Smith, Ryan J. Sprenger, Pablo L. Tubaro, Thomas Valqui, Roy E. Weber, Daniela Wilner, Robert E. Wilson, Julia M. York, William K. Milsom

Occasional Papers of the Museum of Natural Science, Louisiana State University

Hypoxia and cold temperatures create unique physiological challenges for high-altitude organisms that can vary depending on lifestyle. While nearly all studies of air-breathing animals at high altitude are from terrestrial species, species that breath-hold dive underwater at high altitude encounter a very different set of selective pressures influencing their phenotype. The goal of this publication is to highlight the changes in O2 transport and utilization in high-altitude diving birds relative to divers at sea level, and the extent to which these changes are qualitatively distinct from phenotypic changes in non-diving species at high altitude. For example, while high capacities for …


Sand, Science, And The Civil War: Sedimentary Geology And Combat, Erin Stewart Mauldin Jan 2024

Sand, Science, And The Civil War: Sedimentary Geology And Combat, Erin Stewart Mauldin

Civil War Book Review

Scott Hippensteel’s Sand, Science, and the Civil War fills

a critical gap in several different literatures on America’s Civil War. Across 20 brief chapters, Hippensteel demonstrates how sedimentary geology affected military operations on a range of scales, from the continental creation of mountains that acted as offensive obstacles to the weathering of sand into an effective force multiplier for coastal fortifications. Hippensteel is not a historian by training—he is an associate professor of earth sciences—and perhaps for that reason, Sand, Science, and the Civil War does not follow the expected structure or chronology of a typical history monograph. Nevertheless, Hippensteel’s …


Interculturality, Creolization, And Globalization In "Ángeles Nómadas" By Minelys Sánchez, Cecily Bernard Jan 2024

Interculturality, Creolization, And Globalization In "Ángeles Nómadas" By Minelys Sánchez, Cecily Bernard

Comparative Woman

No abstract provided.


A Pharmacological Approach To Investigating Effector Translocation In Rice-Magnaporthe Oryzae Interactions, Ely Oliveira-Garcia, Allison Jane Hamilton Jan 2024

A Pharmacological Approach To Investigating Effector Translocation In Rice-Magnaporthe Oryzae Interactions, Ely Oliveira-Garcia, Allison Jane Hamilton

Faculty Publications

Fungal pathogens deliver effector proteins into living plant cells to suppress plant immunity and control plant processes that are needed for infection. During plant infection, the devastating rice blast fungus, Magnaporthe oryzae, forms the specialized biotrophic interfacial complex (BIC), which is essential for effector translocation. Cytoplasmic effectors are first focally secreted into BICs, and subsequently packaged into dynamic membranous effector compartments (MECs), then translocated via clathrin-mediated endocytosis (CME) into the host cytoplasm. This study demonstrates that clathrin-heavy chain inhibitors endosidin-9 (ES9) and endosidin-9–17 (ES9–17) blocked the internalization of the fluorescently labeled effectors Bas1 and Pwl2 in rice cells, leading to …


Biology, Ecology, And Management Of Redbanded Stink Bug (Hemiptera: Pentatomidae), Olabimpe O. Okosun, Justin George, Maribel Portilla, James P. Glover, Katherine A. Parys, Gadi V.P. Reddy Jan 2024

Biology, Ecology, And Management Of Redbanded Stink Bug (Hemiptera: Pentatomidae), Olabimpe O. Okosun, Justin George, Maribel Portilla, James P. Glover, Katherine A. Parys, Gadi V.P. Reddy

Faculty Publications

The redbanded stink bug (RBSB), Piezodorus guildinii (Westwood) (Hemiptera: Pentatomidae) is an invasive stink bug species and a polyphagous pest of cultivated crops and non-cultivated wild plants. The increase in soybean cultivation during the 1960s-1970s led to the spread of RBSB as an economic pest of soybean throughout South America, especially in Brazil, Argentina, and Uruguay. In the early 2000s, RBSB became an economic concern to US agriculture and is currently a key species in a stink bug complex that damages soybean in many mid-southern states. RBSB causes extensive damage to soybeans and other economically important leguminous crops by feeding …


Transgenic Sugarcane Expressing Bacillus Thuringiensis Cry1ac Protein Offers New Possibilities For Controlling The Giant Borer, Telchin Licus (Drury), A Pest Difficult To Control, Caroline Izabel R. Sakuno, Fabricio José B. Francischini, Karen Missy A. Komada, Murilo Basso, Fangneng Huang Jan 2024

Transgenic Sugarcane Expressing Bacillus Thuringiensis Cry1ac Protein Offers New Possibilities For Controlling The Giant Borer, Telchin Licus (Drury), A Pest Difficult To Control, Caroline Izabel R. Sakuno, Fabricio José B. Francischini, Karen Missy A. Komada, Murilo Basso, Fangneng Huang

Faculty Publications

The giant borer, Telchin licus (Drury), is an important insect pest of sugarcane in Central and South America. This pest is difficult to control with chemical or biological control approaches due to the larvae behavior of hiding in the deepest parts of the plants. Manual scavenging and skewer killing have been the main approaches for monitoring and control of T. licus in Brazil, the world's largest sugarcane producer. Recently, Brazil launched the first commercial use of transgenic sugarcane expressing Bacillus thuringiensis (Bt) proteins to control the sugarcane borer, Diatraea saccharalis (F.), a primary insect pest of sugarcane in the Americas. …


Multinational Prediction Of Soil Organic Carbon And Texture Via Proximal Sensors, Marcelo Mancini, Renata Andrade, Sérgio Henrique Godinho Silva, Rogério Borguete Alves Rafael, Swagata Mukhopadhyay, Bin Li, Somsubhra Chakraborty, Luiz Roberto Guimarães Guilherme, Autumn Acree, David C. Weindorf, Nilton Curi Jan 2024

Multinational Prediction Of Soil Organic Carbon And Texture Via Proximal Sensors, Marcelo Mancini, Renata Andrade, Sérgio Henrique Godinho Silva, Rogério Borguete Alves Rafael, Swagata Mukhopadhyay, Bin Li, Somsubhra Chakraborty, Luiz Roberto Guimarães Guilherme, Autumn Acree, David C. Weindorf, Nilton Curi

Faculty Publications

Novel technologies help to monitor the environmental impact of human activities, but tests involving datasets from several countries, encompassing a large variability of soil properties, are still scarce. This study utilized proximal sensors to predict soil organic carbon (OC) and soil texture of samples from Brazil, France, India, Mozambique, and United States. A total of 1749 samples were analyzed by portable X-ray fluorescence (pXRF) spectrometry and visible near-infrared diffuse reflectance spectroscopy. Sand (R2 = 0.89), silt (0.87), and clay (0.84) predictions were very accurate, despite contrasting climates, soil parent materials, and weathering degrees. Soil OC predictions were similarly successful (0.74) …


Impact Of Solar Radiation On Perchlorate Formation In The Atmosphere: Evidence From Ice Core Measurements, Bishnu Kunwar Jan 2024

Impact Of Solar Radiation On Perchlorate Formation In The Atmosphere: Evidence From Ice Core Measurements, Bishnu Kunwar

Electronic Theses and Dissertations

Perchlorate, which derives from both anthropogenic and natural sources in the current environment, poses a substantial health hazard to humans as it competes with iodine uptake in the thyroid gland. Consequently, there has been considerable concern about minimizing human exposure to environmental perchlorate by restricting its release from man-made sources. However, the absence of a clear understanding regarding the respective contributions of man-made and natural sources has hindered widespread regulation efforts. A 300-year (1700–2007) Summit, Greenland ice core record from a previous study showed relatively stable perchlorate concentrations in Greenland snow prior to 1980, with some elevated perchlorate levels associated …


Primary Cilia And Intraflagellar Transport Are Essential Regulators Of Lymphangiogenesis And Modulate Cellular Trafficking Of Ve-Cadherin, Delayna Paulson Jan 2024

Primary Cilia And Intraflagellar Transport Are Essential Regulators Of Lymphangiogenesis And Modulate Cellular Trafficking Of Ve-Cadherin, Delayna Paulson

Electronic Theses and Dissertations

No abstract provided.


Physicochemical And Functional Properties Of Different Varieties Of Spring And Winter Peas Of South Dakota, Prakriti Dhakal Jan 2024

Physicochemical And Functional Properties Of Different Varieties Of Spring And Winter Peas Of South Dakota, Prakriti Dhakal

Electronic Theses and Dissertations

Peas are a good source of nutrients for both humans and animals, and they are the world's second most significant and sustainable legume. There have been studies on different kinds of pea grown in other parts of the world, but there is no information on the compositional and functional characteristics of pea varieties grown specifically in South Dakota. The objective of the study was to evaluate the proximate composition and functional properties of various pea varieties and determine if the pea variety impacted cookie properties. The proximate composition (moisture, protein, starch, and amylose), functional capacities (water holding, oil holding capacity, …


Developing Machine Learning Models For Selection Of Management Zones, Sravanthi Bachina Jan 2024

Developing Machine Learning Models For Selection Of Management Zones, Sravanthi Bachina

Electronic Theses and Dissertations

Soil sampling and analyses play a crucial role in optimizing nutrient management and enhancing crop productivity. However, collecting representative samples across diverse landscapes is challenging due to knowledge gaps about spatial variability of soil properties, large fields, multiple samples, and analysis costs. Collecting soil samples based on the management zones can help farmers gather precise information about soil properties with fewer samples. Recent developments in precision agriculture and machine learning. This study aimed to develop machine learning models that can learn, analyze, and refine landscape and soil properties data for automated selection of soil sampling zones and generating prediction maps. …


Species Distribution Modeling Of Aquilegia Brevistyla (Ranunculaceae): A Critically Imperiled Black Hills Disjunct Species, Eric Daniel Puetz Jan 2024

Species Distribution Modeling Of Aquilegia Brevistyla (Ranunculaceae): A Critically Imperiled Black Hills Disjunct Species, Eric Daniel Puetz

Electronic Theses and Dissertations

Unchecked human activity is contributing to rising levels of greenhouse gas emissions, changes in land use, altered disturbance/fire regimes, spread of invasive species, and loss of biological diversity and related breakdown of ecosystem services. Additionally, climatic shifts may lead to phenological mismatches between species and their environments if these changes outpace a species’ ability to adapt or migrate to a more suitable habitat. Isolated mountain populations are particularly threatened by unpredictable climatic conditions, as they may have limited migration corridors and often lower levels of genetic diversity to move or adapt, respectively. As these negative feedbacks compound on the landscape, …


Mechanical Testing Of Novel Biopolymers For The Replacement Of Petroleum-Based Plastic Hay Bale Net Wrapping, Logan Wolf Jan 2024

Mechanical Testing Of Novel Biopolymers For The Replacement Of Petroleum-Based Plastic Hay Bale Net Wrapping, Logan Wolf

Electronic Theses and Dissertations

The purpose of this thesis is to test biopolymers synthesized from oilseeds or produced from agricultural wastes for large bale net wrapping as a viable alternative to conventional petroleum-based plastics (PBP). The goal is to test and assess novel polymers to guide the synthesis of a benign biodegradable polymer. Biobased net wrapping will significantly reduce ingestion of PBPs in animals such as ruminants to improve digestive health and minimize cattle loss due to plastic disease. Biobased plastics will also achieve partial or complete breakdown shortly after service without depositing microplastics in the environment. This will reduce the risk of damage …


The Hutton Project: Long-Term Agricultural Impacts On Soil Loss And Carbon Dynamics In Eastern South Dakota, Eli Halverson Jan 2024

The Hutton Project: Long-Term Agricultural Impacts On Soil Loss And Carbon Dynamics In Eastern South Dakota, Eli Halverson

Electronic Theses and Dissertations

Long-term and intensified agricultural land management has resulted in increased rates of soil erosion and has altered much of the carbon cycle at regional and global scales. Anthropogenic degradation of soil resources is a barrier to sustainable production, soil functioning, and ecosystem services. It is difficult to quantify the scope of pedogenic changes due to the lack of legacy data and short temporal scales. This study utilized decades to century-old soil information to quantify historical soil erosion losses and changes in soil carbon pools of eastern South Dakota soils. The results show that soils in the region have been significantly …


Climate Change Adaptation For Embankment Through Biogeotechnics, Debayan Ghosh Jan 2024

Climate Change Adaptation For Embankment Through Biogeotechnics, Debayan Ghosh

Electronic Theses and Dissertations

Problematic soil like expansive soil, and frost-susceptible soil causes significant damage to civil infrastructure. The use of calcium-based stabilizers in the treatment of sulfate-rich expansive soils is not suggested due to the formation of ettringite. Infrastructure such as pavements and embankments built on expansive soil are often exposed to the damaging impacts of freeze-thaw cycles in areas prone to seasonal freezing making them vulnerable to cracking and spalling. In this study, a native expansive soil from South Dakota with a sulfate content of more than 10,000 ppm was stabilized using biopolymer and cement. The experimental study investigated the strength and …


The Effects Of Temperature, Flooding, And Goose Feces Addition On Greenhouse Gas Emissions And Ammonification In Four High-Latitude Soils From Western Alaska, Jenna M. Ross Jan 2024

The Effects Of Temperature, Flooding, And Goose Feces Addition On Greenhouse Gas Emissions And Ammonification In Four High-Latitude Soils From Western Alaska, Jenna M. Ross

Electronic Theses and Dissertations

The large carbon (C) stock of wetlands is vulnerable to climate change, especially in high latitudes that are warming at a disproportional rate. Likewise, low-elevation Arctic coastal areas will flood more frequently under climate change and sea-level rise, which may alter goose herbivory and fecal deposition patterns if geese move inland. While temperature, flooding, and feces impact soil C emissions, their interactive effects have been rarely studied. Here, I explore the impact of these interactions on CO2 and CH4 emissions and nitrogen (N) mineralization (ammonification) in soils collected from four plant communities in the Yukon-Kuskokwim (Y-K) Delta, a high latitude …