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Caring Cloth Praxis: Ethics Of Loss, Practices Of Remembering, Suzanna James Jan 2024

Caring Cloth Praxis: Ethics Of Loss, Practices Of Remembering, Suzanna James

Textile Society of America: Symposium Proceedings

This research, in continual development as a part of early PhD study, is currently entitled ‘Ethics of Loss, Practices of Remembering’ and locates itself within the field of cultural sustainability. It is foregrounded by my MA thesis entitled ‘Caring Cloth’ and works in response to the words of Louise Bourgeois: ‘the needle is used to repair damage, its claim to forgiveness.’ My own socially and environmentally regenerative textiles practice considers the way in which personal practices of remembering can be developed in response to cultural sustainability.

This textiles practice develops explorative visual textile art and social textile practice research which …


Textile As Cultural Technology: The Evolution Of Robert Rauschenberg’S Jammers, 1975–6, Katya Oicherman Jan 2024

Textile As Cultural Technology: The Evolution Of Robert Rauschenberg’S Jammers, 1975–6, Katya Oicherman

Textile Society of America: Symposium Proceedings

Robert Rauschenberg suggested that any material has a “humanitarian reportage” or a history built into it, that opens art to the “strange and unpredictable” experience only comparable to everyday reality. Developing this idea, I will focus on the Jammers, a series of works with significant textile presence produced in 1975–76, and discuss how Rauschenberg’s relationship to textiles evolved from treating them as “materials” to recognizing them as cultural technologies. In 1975 he was on a fellowship in Ahmedabad, India, a period of intense experimentation.

Textiles were already a significant presence in his art, playing a subservient role of materials …


Discourses That Undermine Union Movements: A Multimodal Analysis Of Union-Busting Videos, Theresa A. Catalano, Julia Schleck Jan 2024

Discourses That Undermine Union Movements: A Multimodal Analysis Of Union-Busting Videos, Theresa A. Catalano, Julia Schleck

Department of Teaching, Learning, and Teacher Education: Faculty Publications

Labor unions in the United States have experienced decades of decline, but recent years have seen a rebirth of union campaigns and successes. Because unions are once again becoming a threat to large companies, it is reasonable to assume that efforts to discourage organizing efforts will increase and become even more robust in the near future. Although traditionally, companies have worked to suspend union organizing through captive audience meetings in which unions were discussed via verbal or written modes, more recent means of reaching workers with anti-union messages incorporate a variety of communication strategies to get the message across. As …


Collaborative Aesthetic Experiences And Teacher Learners: Arts-Practice Research In A Teacher Education Classroom, Theresa A. Catalano, Inoussa Malgoubri, Jennifer Bockerman, Hector Palala Martínez, Mackayla Kelsey, Leonardo Brandolini, Ilia Shcherbakov Jan 2024

Collaborative Aesthetic Experiences And Teacher Learners: Arts-Practice Research In A Teacher Education Classroom, Theresa A. Catalano, Inoussa Malgoubri, Jennifer Bockerman, Hector Palala Martínez, Mackayla Kelsey, Leonardo Brandolini, Ilia Shcherbakov

Department of Teaching, Learning, and Teacher Education: Faculty Publications

This paper explores the experiences of six teacher learners and one teacher educator in a graduate course on aesthetic education at a Midwestern university in the U.S. Using collective autoethnography and arts-practice research, the researcher/participants examine how aesthetic experiences were activated in the learning environment and how this activation supported the development of transformational rethinking that led to the changing of formed habits of teaching. Findings reveal how aesthetic teacher education can be therapeutic, aid in building connections between the teacher and students (and among students), inspire wonder and discovery, facilitate the valuing and including of cultural and linguistic backgrounds …


A Science Teacher’S Experiences When Fostering Intercultural Competence Among Students In Multilingual Classrooms: A Narrative Study, Uma Ganesan, Amanda R. Morales Jan 2024

A Science Teacher’S Experiences When Fostering Intercultural Competence Among Students In Multilingual Classrooms: A Narrative Study, Uma Ganesan, Amanda R. Morales

Department of Teaching, Learning, and Teacher Education: Faculty Publications

Increased globalization of the world economy, growth in human migration, and rapid devel-opments in science and technology have required people to develop intercultural commu-nication skills. Teachers play a crucial role in developing intercultural competence among students in our globalized, multilingual classrooms. The need for fostering collaborative discourse among students with diverse cultural and linguistic repertoires and building in-tercultural competence among students is a common blind spot in Science, Technology, Engineering, and Mathematics teacher praxis. This can inhibit efforts to cultivate safe and supportive learning environments for all students and can ultimately threaten multilingual student success. As part of a larger …


English 890: Advanced Research Methods, A First Benchmark Portfolio, Janel Simons Jan 2024

English 890: Advanced Research Methods, A First Benchmark Portfolio, Janel Simons

UNL Faculty Course Portfolios

In this benchmark portfolio, I reflect on course design and student learning in a course I teach for incoming Master's students in the English department, ENGL 890: Advanced Research Methods. ENGL 890 is a mini-session course intended to introduce students to various aspects of managing graduate-level research within the discipline of English studies. In this portfolio, I discuss the learning outcomes and goals for the course, highlight some of the assessments I use, reflect on student learning throughout the course, and articulate changes that might improve student learning in future iterations of the course. Given the overarching goals of this …


Methodologizing Transnationality: Relational Writing As Collective Inquiry, Sun Young Lee, Minhye Son, Taeyeon Kim, Jin Kyeong Jung, Soo Bin Jang Jan 2024

Methodologizing Transnationality: Relational Writing As Collective Inquiry, Sun Young Lee, Minhye Son, Taeyeon Kim, Jin Kyeong Jung, Soo Bin Jang

Department of Educational Administration: Faculty Publications

How can we take transnationality as a space of in-betweenness to generate new possibilities, moving beyond geographically bounded spans between countries? This article presents five authors’ collective inquiry on transnational positionalities, which we practiced through the relational, transformative, and reflective writing of the self in a community space. We staged the collaborative writing into two processes: the emergent process of thematic writing and the relay writing. Interweaving “I” and “we” voices that cannot be captured through categorical thinking, our collaborative quest resists normative identity politics, proposing writing as a method of collective inquiry for the nuanced understanding of the transnationality …


Off The Rails: Cinematic Trains As Technological Controls Of The Natural World, Trinity Thompson Nov 2023

Off The Rails: Cinematic Trains As Technological Controls Of The Natural World, Trinity Thompson

Honors Program: Senior Projects (Public)

Short train rail lines across the United States are seeing increased national funding to reduce toxic chemical spills caused by train derailments, the most notable of which happened in February 2023 in East Palestine, Ohio. A year prior, the film White Noise (2022) featured a similar toxic train derailment incident, taking place, too, in Eastern Ohio, and featuring actors from the town of East Palestine. In considering other films featuring trains, I identified a pattern of environmental conflict, leading me to question the relationship between trains and the natural environment as portrayed in popular cinema. To conduct my research, I …


Biomimetic Approach To Elucidate The Role Of Microenvironment In Regulating Cell Communications In Liver Diseases, Youra Moeun Nov 2023

Biomimetic Approach To Elucidate The Role Of Microenvironment In Regulating Cell Communications In Liver Diseases, Youra Moeun

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

Liver is a complex organ but often underappreciated for its functions to remove toxins and fight infection in the body. Despite the ongoing prevalence of patients contracting chronic liver diseases, coupled with a global healthcare investment of approximately $70 billion, there is still no effective treatment for chronic liver diseases including alcoholic liver disease. The purpose of this dissertation was to understand the interactions of parenchymal and non-parenchymal liver cells in physiological and pathological like environments. This allowed us to recreate a healthy and the diseased microenvironments to observe the stages of the liver diseases development and apply appropriate treatments …


Convergence And Transdisciplinary Teaching In Quantitative Biology, Robert Mayes, Joseph Dauer, David Owens Jun 2023

Convergence And Transdisciplinary Teaching In Quantitative Biology, Robert Mayes, Joseph Dauer, David Owens

School of Natural Resources: Faculty Publications

The United States National Science and Technology Council has made a call for improving STEM (Science, Technology, Engineering, and Mathematics) education at the convergence of science, technology, engineering, and mathematics. The National Science Foundation (NSF) views convergence as the merging of ideas, approaches, and technologies from widely diverse fields of knowledge to stimulate innovation and discovery. Teaching convergency requires moving to the transdisciplinary level of integration where there is deep integration of skills, disciplines, and knowledge to solve a challenging real-world problem. Here we present a summary on convergence and transdisciplinary teaching. We then provide examples of convergence and transdisciplinary …


Midweed: A Comparison Between Marijuana Laws, Regulations, And Social Attitudes In Cannabis-Legal Vs. Cannabis-Illegal Midwest States, Abagail Lim May 2023

Midweed: A Comparison Between Marijuana Laws, Regulations, And Social Attitudes In Cannabis-Legal Vs. Cannabis-Illegal Midwest States, Abagail Lim

College of Journalism and Mass Communications: Professional Projects

This professional project is a series of three journalistic articles. Each article focuses on laws, regulations and social attitudes surrounding marijuana in the United States. These topics are explored primarily through the lenses of two Midwest states (Illinois & Nebraska), which have highly contrasting laws and regulations regarding marijuana. The state of Illinois legalized medical marijuana in January 2014 and recreational marijuana in January 2020, while in Nebraska, both medical and recreational use still remains illegal, though possession of up to one ounce has been decriminalized.

The purpose of choosing these two states is to show how stark a contrast …


"Don't Put Restrictions On Us": The Dangers Of Conservative And Populist Appeals For Abortion Access In Post-Roe America, Kayla Schmitz May 2023

"Don't Put Restrictions On Us": The Dangers Of Conservative And Populist Appeals For Abortion Access In Post-Roe America, Kayla Schmitz

Department of Communication Studies: Dissertations, Theses, and Student Research

This thesis critically analyzes Kansans for Constitutional Freedom’s campaign ads for their campaign against the Value Them Both Amendment in Kansas in 2022. Value Them Both would have stripped the Kansas constitution of its protection of personal autonomy and therefore abortion rights. Kansans for Constitutional Freedom used populist and otherwise conservative appeals in their ads to reach audiences across the political “spectrum” to gain their votes against Value Them Both. While the campaign was widely successful, there are many things it did not do for the broader concern of reproductive healthcare access in the United States, particularly for those living …


Place-Based Pedagogies In Post-Secondary Science Education: A Scoping Literature Review, Megan Swain May 2023

Place-Based Pedagogies In Post-Secondary Science Education: A Scoping Literature Review, Megan Swain

Department of Environmental Studies: Undergraduate Student Theses

How do we connect students to a class and how do educational professionals create those connections? What makes an educational experience memorable? How do we cultivate students who are passionate and engaged? These are all important questions in educational fields and ones that have increasing importance in a world of growing virtual education. This thesis aims to look deeper into one method, place-based education that attempts to answer some of these questions.

Place-based education (PBE) is a pedagogy that utilizes the local physical environment and community as an educational tool. Educators focus lessons on places, people, and things surrounding their …


Optimizing Soil Nutrient Management To Improve Dry Edible Bean Yield And Protein Quality, Emily Jundt May 2023

Optimizing Soil Nutrient Management To Improve Dry Edible Bean Yield And Protein Quality, Emily Jundt

Department of Food Science and Technology: Dissertations, Theses, and Student Research

Soil nutrient management is of the utmost importance to ensure crop yields are maximized to feed the world’s growing population. Micro and macronutrient deficiencies can be detrimental to plant growth and cause a drastic reduction in yield. Optimization of nutrient management needs extensive research. Nutrients such as nitrogen increase crop yield, even in legumes capable of using a large amount of nitrogen (N) via biological N fixation. Iron (Fe) fertilizers are also crucial for legumes as they are susceptible to Fe deficiency induced chlorosis.

Dry edible beans (Phaseolus vulgaris) are leguminous plants and excellent dietary protein sources. Great …


Negotiating Asian American Identities: Collaborative Self-Study Of Korean Immigrant Scholars’ Reading Group On Asiancri, Taeyeon Kim, Soo Bin Jang, Jin Keong Jung, Minhye Son, Sun Young Lee Apr 2023

Negotiating Asian American Identities: Collaborative Self-Study Of Korean Immigrant Scholars’ Reading Group On Asiancri, Taeyeon Kim, Soo Bin Jang, Jin Keong Jung, Minhye Son, Sun Young Lee

Department of Educational Administration: Faculty Publications

The purpose of this study is to understand how Korean immigrant women early career scholars in higher education in the United States explore their Asian American identities in the identity-based community space. The study considered qualitative data generated by five authors in a collaborative reading group learning more about AsianCrit literature. Our analysis revealed that AsianCrit was used as a tool for revisiting our racialized experiences, negotiating tensions around key constructs of AsianCrit informed by transnational perspectives, and embracing Asian American identities in pursuit of solidarity. The findings contribute to expanding the scholarship of AsianCrit by highlighting its utility and …


Video Tools In Pediatric Goals Of Care Communication: A Systematic Review, Caitlin M. Nalda, Megan L. Mcsherry, Cynthia M. Schmidt, Marie L. Neumann, Renee D. Boss, Meaghann S. Weaver Jan 2023

Video Tools In Pediatric Goals Of Care Communication: A Systematic Review, Caitlin M. Nalda, Megan L. Mcsherry, Cynthia M. Schmidt, Marie L. Neumann, Renee D. Boss, Meaghann S. Weaver

Department of Communication Studies: Faculty Publications

Medical advancesmean a growing array of interventions, therapies, and technologies are available to support care for children with chronic and serious conditions. Some of these approaches are supported by robust data drawn from populations that perfectly reflect an individual patient's physiologic, psychologic, and social situation. But much more often, clinicians and families face decisions in the context of some—or much—uncertainty about whether the intervention will do a child more harm than good. This is particularly true for seriously ill children with a limited lifespan— whether the child is a neonate born with a life-threatening brain anomaly or an adolescent with …


Advocating For A Patient‐ And Family Centered Care Approach To Management Of Short Bowel Syndrome, Vanessa J. Kumpf, Marie L. Neumann, Swapna R. Kakani Jan 2023

Advocating For A Patient‐ And Family Centered Care Approach To Management Of Short Bowel Syndrome, Vanessa J. Kumpf, Marie L. Neumann, Swapna R. Kakani

Department of Communication Studies: Faculty Publications

Patient‐ and family centered care (PFCC) is a model of providing healthcare that incorporates the preferences, needs, and values of the patient and their family and is built on a solid partnership between the healthcare team and patient/family. This partnership is critical in short bowel syndrome (SBS) management since the condition is rare, chronic, involves a heterogenous population, and calls for a personalized approach to care. Institutions can facilitate the practice of PFCC by supporting a teamwork approach to care, which, in the case of SBS, ideally involves a comprehensive intestinal rehabilitation program consisting of qualified healthcare practitioners who are …


“Popping It” As Family In Mosquitoes & Me: Affective Accumulation And Anzaldúan Aesthetic Consciousness In Ciencia Zurda, Katherine R. Bruna, Jennifer Farley, Lyric Bartholomay Jan 2023

“Popping It” As Family In Mosquitoes & Me: Affective Accumulation And Anzaldúan Aesthetic Consciousness In Ciencia Zurda, Katherine R. Bruna, Jennifer Farley, Lyric Bartholomay

University of Nebraska Public Policy Center: Publications

This article uses key concepts of Anzaldúan philosophy to describe the Mosquitoes & Me summer camp as ciencia zurda or left-handed science. It details a day-in-the-life portrait of Elena, a first-generation Latina middle schooler, as she experiences the opportunities that Mosquitoes & Me provided for self-other bridge crossing and radically relational, Nepantlan potential. Our discussion of Elena’s experiences in terms of Nepantlan principles of diversity, Affect, and spirit, as well as Affective accumulation and aesthetic consciousness, infuse an emotional and spiritual dimension to inquiry science- and responsive sciencecomplementarity and revisit a call for soul-centered, socially-transformative science.

Este artículo utiliza conceptos …


Lakota Language Revitalization And The Meaning Of Life, Gabriel Bruguier Jan 2023

Lakota Language Revitalization And The Meaning Of Life, Gabriel Bruguier

University of Nebraska-Lincoln Libraries: Presentations

Lakota Language Revitalization and the Meaning of Life

Thesis: Indigenous languages reveal information about that peoples’ conception of the meaning of life.

Notes/working document from a presentation given at the Society for the Advancement of American Philosophy conference, 2023.


Hombres, Pumas Y Jaguares: Imágenes Del Poder Chamánico En Los Vasos Líticos Del Noroeste Argentino, María Alba Bovisio Jan 2023

Hombres, Pumas Y Jaguares: Imágenes Del Poder Chamánico En Los Vasos Líticos Del Noroeste Argentino, María Alba Bovisio

Segundo congreso internacional de iconografía precolombina. Barcelona, 2023. Actas.

El presente trabajo se centra en el análisis de unos vasos de piedra, producidos en la región valliserrana del noroeste argentino durante el Período Formativo, que se destacan por su escaso número, su particular iconografía que gira en torno a felinos y humanos masculinos, y la maestría en su ejecución. Estos recipientes habrían estado asociados al consumo de sustancias psicoactivas en rituales de carácter chamánico. A través del análisis iconográfico articulado con las características materiales y funcionales se indaga el rol de estos objetos como agentes de legitimación y constitución del poder ejercido por los chamanes.

This paper analyzes lithic …


Indecent Bodies In Early Modern Visual Culture: An Introduction, Fabian Jonietz, Mandy Richter, Alison Stewart Jan 2023

Indecent Bodies In Early Modern Visual Culture: An Introduction, Fabian Jonietz, Mandy Richter, Alison Stewart

School of Art, Art History, and Design: Faculty Publications and Creative Activity

Indecency ‒ the polar opposite of propriety, appropriateness, respectability, decorum ‒ has played a central role in our understanding of Early Modern cultural norms since the beginning of art history as an academic field in the nineteenth century. Accordingly, the concept of indecency was fundamental to historical and contemporary discourses that attempted to balance social limits on indecorous behaviour and images. At the same time, the appeal of such visual imagery, the attraction of graphic depictions of bodies and their actions, resulted in conflicting responses on the part of viewers. Historically, decency and indecency played defining roles in both the …


Resisting Disciplinarity: Curriculum Mapping And Transdisciplinarity, Megan Snider Bailey Jan 2023

Resisting Disciplinarity: Curriculum Mapping And Transdisciplinarity, Megan Snider Bailey

Journal of the National Collegiate Honors Council Online Archive

American higher education relies on a taxonomy of knowledge stemming from Puritan ways of thinking and knowing—a disciplinary classification system that sorts “questions asked” and “answers possible” into epistemic categories. This paper interrogates the notion of disciplinarity to better understand the arbitrariness of epistemic divisions and the harm that these decisions cause. The author explores transdisciplinarity as an emerging concept in honors education, one which rejects boundaries and explores problems through multiple, competing perspectives. Transdisciplinary pedagogical approaches offer honors educators a mechanism for pivoting teaching and learning away from outdated assumptions of honors as elitist, giving honors students a liberating …


Regime Change As Opportunity: A Case For A Radically Inclusive Response, Massimo Rondolino Jan 2023

Regime Change As Opportunity: A Case For A Radically Inclusive Response, Massimo Rondolino

Journal of the National Collegiate Honors Council Online Archive

The author proposes a radically inclusive approach to reimagining and rebuilding honors education at a time of institutional change, suggesting that when directives do not include a clear vision for academic curricula in practice and orientation (and instead focus on budgetary bottom lines and cost-maximization), honors practitioners benefit from an invaluable opportunity to exert self-determination and agency. This essay describes the effective rebuilding of an honors program by leveraging faculty experience to establish a collaborative community framed within a model of student self-governance and grounded in principles of mindful leadership, anti-cruelty mentality, and maternal thinking.


Court Review: Journal Of The American Judges Association, Vol. 59, No. 3, Eve M. Brank, David Dreyer, David Prince Jan 2023

Court Review: Journal Of The American Judges Association, Vol. 59, No. 3, Eve M. Brank, David Dreyer, David Prince

Court Review: Journal of the American Judges Association

Articles

Judicial Discipline, Examining Ethics Oversight for the Highest Levels of Our Least Accountable Branch; David Prince

Civil Cases in the Supreme Court’s October Term 2022; Thomas M. Fisher

Departments

Editor’s Note; David Dreyer

President’s Column: A Legacy of Leadership and Service; Yvette Mansfield Alexander

Thoughts from Canada: Uttering Threats in Canada and the United States, a Comparative Analysis; Wayne K. Gorman

Crossword: Name That Games; Tracy Bennett and Vic Fleming

The Resource Page: Junk Science and the Judicial System; The Elevator Effect; Mindfulness and Judging: Resources for Judges; New Online Database: Judges and the Judiciary: Exploring America's Court System; …


A Creative Midterm Alternative: The Horror Author Poster Session, Annmarie Guzy Jan 2023

A Creative Midterm Alternative: The Horror Author Poster Session, Annmarie Guzy

Honors in Practice Online Archive

A midterm assignment affords honors students from all disciplines the opportunity for creative expression. Poster subjects cover a range of writers in the genre of horror, and the event showcases students’ artistic abilities while promoting interdisciplinary socialization and a sense of community in honors. A sample list of authors and examples of document design are included.


About The Authors, Nchc Monograph Series, Publications Order Form, Back Cover Jan 2023

About The Authors, Nchc Monograph Series, Publications Order Form, Back Cover

Honors in Practice Online Archive

No abstract provided.


The Politics Of Tools, Stephen Ramsay Jan 2023

The Politics Of Tools, Stephen Ramsay

Department of English: Faculty Publications

A consideration of the political meaning of software that tries to add greater philosophical precision to statements about the politics of tools and tool building in the humanities. Using Michael Oakeshott's formulations of the “politics of faith” and the “politics of skepticism,” [Oakeshott 1996] it suggests that while declaring our tools be morally or political neutral may be obvious fallacious, it is equally problematic to suppose that we can predict in advance the political formations that will arise from our tool building. For indeed (as Oakeshott suggests), the tools themselves give rise to what is politically possible.


Exploring The Impact Of Pediatric Short Bowel Syndrome On Parent Well‐Being Using A Disease‐Specific Pilot Survey, Marie L. Neumann, Jessica Y. Allen, Amy Ladner, Swapna Kakani, Meaghann S. Weaver, David F. Mercer Jan 2023

Exploring The Impact Of Pediatric Short Bowel Syndrome On Parent Well‐Being Using A Disease‐Specific Pilot Survey, Marie L. Neumann, Jessica Y. Allen, Amy Ladner, Swapna Kakani, Meaghann S. Weaver, David F. Mercer

Department of Communication Studies: Faculty Publications

Background: Children with short bowel syndrome (SBS) have complex care needs, most of which are met in the home by family caregivers who may experience a range of stressors unique to this experience. Prior research suggests that parents of children with SBS have poorer health‐related quality of life than peers parenting children without health needs, but the mechanisms shaping parent outcomes are understudied.

Methods: A pilot survey was developed using a community‐driven research design to measure the impact of disease‐specific items on parent‐perceived well‐being. The cross‐sectional survey, which included both closed‐ended and open‐ended items, was distributed to a …


Wahl. El Abanico En La Cultura Maya, Roberto Romero Sandoval Jan 2023

Wahl. El Abanico En La Cultura Maya, Roberto Romero Sandoval

Tejiendo imágenes. Homenaje a Victòria Solanilla Demestre

En este trabajo analizamos el uso, función y simbolismo del abanico entre los antiguos mayas. En principio, revisaremos las escenas palaciegas plasmadas en las vasijas estilo Códice del periodo Clásico Tardío, porque en ellas advertimos la presencia de personajes de la nobleza portando diversos tipos de abanicos. Entre ellos, destacan: gobernantes, mujeres de la nobleza, enanos, jefes militares, comerciantes y embajadores. En segundo lugar, realizaremos una tipología de los abanicos para descubrir de qué material estaban elaborados. Finalmente, indagaremos en las fuentes escritas y en los diccionarios, los nombres que se le otorgaban a la palabra “abanico”.

In this paper …


Nitrate-Stimulated Release Of Naturally Occurring Sedimentary Uranium, Jeffrey Westrop, Pooja Yadav, Pj Nolan, Kate M. Campbell, Rajesh Singh, Sharon E. Bone, Alicia H. Chan, Anthony Kohtz, Donald Pan, Olivia Healy, John R. Bargar, Daniel D. Snow, Karrie A. Weber Jan 2023

Nitrate-Stimulated Release Of Naturally Occurring Sedimentary Uranium, Jeffrey Westrop, Pooja Yadav, Pj Nolan, Kate M. Campbell, Rajesh Singh, Sharon E. Bone, Alicia H. Chan, Anthony Kohtz, Donald Pan, Olivia Healy, John R. Bargar, Daniel D. Snow, Karrie A. Weber

Department of Earth and Atmospheric Sciences: Faculty Publications

Groundwater uranium (U) concentrations have been measured above the U.S. EPA maximum contaminant level (30 μg/L) in many U.S. aquifers, including in areas not associated with anthropogenic contamination by milling or mining. In addition to carbonate, nitrate has been correlated to uranium groundwater concentrations in two major U.S. aquifers. However, to date, direct evidence that nitrate mobilizes naturally occurring U from aquifer sediments has not been presented. Here, we demonstrate that the influx of high-nitrate porewater through High Plains alluvial aquifer silt sediments bearing naturally occurring U(IV) can stimulate a nitrate-reducing microbial community capable of catalyzing the oxidation and mobilization …