Digital Commons Network^™

Peat Decomposition And Erosion Contribute To Pond Deepening In A Temperate Salt Marsh, Sheron Luk, Meagan J. Eagle, Giulio Mariotti, Kelsey Gosselin, Jonathan Sanderman, Amanda C. Spivak

Faculty Publications

Salt marsh ponds expand and deepen over time, potentially reducing ecosystem carbon storage and resilience. The water filled volumes of ponds represent missing carbon due to prevented soil accumulation and removal by erosion and decomposition. Removal mechanisms have different implications as eroded carbon can be redistributed while decomposition results in loss. We constrained ponding effects on carbon dynamics in a New England marsh and determined whether expansion and deepening impact nearby soils by conducting geochemical characterizations of cores from three ponds and surrounding high marshes and models of wind-driven erosion. Radioisotope profiles demonstrate that ponds are not depositional environments and …

Assessing Impacts Of Climate Change On Selected Foundation Species And Ecosystem Services In The South-Central Usa, R. James Ansley, Victor H. Rivera-Monroy, Kerry Griffis-Kyle, Bruce Hoagland, Amanda Emert, Todd Fagin, Scott R. Loss, Heather R. Mccarthy, Nicholas G. Smith, Elizabeth F. Waring

Faculty Publications

Climate change, interacting with and exacerbating anthropogenic modifications to the landscape, is altering ecosystem structure and function, biodiversity, and species distributions. Among the most visible short-term impacts are the altered ecological roles of foundation species—those species, native or non-native—that create locally stable environmental conditions and strongly influence ecosystem services. Understanding the future of these species is crucial for projecting impacts on ecosystem services at both local and regional scales. Here we present foundation species by ecoregion study cases across the US South-Central Region (Louisiana, New Mexico, Oklahoma, and Texas), including C4 grasses, mesquite, and northern bobwhite in the Southern Great …

Metagenomics And Metatranscriptomics Reveal Broadly Distributed, Active, Novel Methanotrophs In The Gulf Of Mexico Hypoxic Zone And In The Marine Water Column, Kathryn L. Howe, Kiley W. Seitz, Lauren G. Campbell, Brett J. Baker, J. Cameron Thrash, Nancy N. Rabalais, Mary Kate Rogener, Samantha B. Joye, Olivia U. Mason

Faculty Publications

The northern Gulf of Mexico (nGOM) hypoxic zone is a shallow water environment where methane, a potent greenhouse gas, fluxes from sediments to bottom water and remains trapped due to summertime stratification. When the water column is destratified, an active planktonic methanotrophic community could mitigate the efflux of methane, which accumulates to high concentrations, to the atmosphere. To investigate the possibility of such a biofilter in the nGOM hypoxic zone we performed metagenome assembly, and metagenomic and metatranscriptomic read mapping. Methane monooxygenase (pmoA) was an abundant transcript, yet few canonical methanotrophs have been reported in this environment, suggesting a role …

Uis Commission On Volcanic Caves Newsletter, No. 80, February 2023, Laurens Smets

Union Internationale de Spéléologie (UIS) Commission on Volcanic Caves

Contents: Editorial -- President's Column -- 2024 Proposal for Hosting 21st ISV in Galapagos -- The ISV20 Extension A tribute to the International Symposium on Volcano speleology Vietnam -- The Levantine Juba Depressions as Terrestrial Analogs for Planetary Pits -- The 20th ISV (International Symposium on Vulcanospeleology) - Dak Nong Province, Vietnam November 2022 -- Roberto Conti -- The "Berliner Hohlenkundliche Berichte" (BHB) -- Importance of the cave biota for the protection of lava tubes of North-Patagonia -- Importancia de la biota cavernicola para la proteccion de los tubos lavicos de Nor-Patagonia -- Bill Halliday

Mathematics Capital In Mathematics Education, Frances E. Anderson

Educational Leadership Theses, Dissertations, and Student Creative Activity

This dissertation explores the reimagination of mathematics education through a Bourdieusian perspective. The conceptual framework includes Bourdieu's well-defined terms: capital, field, habitus, and doxa. A thorough review of mathematics education documents finds that mathematics education has not yet considered, mathematics capital, from a Bourdieusian lens. More, examined documents reveal that key variables, mathematics teaching and learning experiences, mathematics self-efficacy, mathematics mindset, and cultural capital, interact. In this examination, cultural capital emerges thematically through all texts. Next, six mathematics teachers with dual degrees in mathematics and education are interviewed. Data analysis included a process of inductive and deductive coding. In these, …

Examination Of Korean Feminism From The Intersections Of Colonialism, Modernity, And Nationalism In Colonial Korea (1910–1945), Yae Hee Choi

Dissertations, Theses, and Capstone Projects

This thesis aims to investigate the politics of Korean feminism during the time of Japanese colonization (1910-1945) from the perspectives of colonialism, modernity, and nationalism. The study illustrates how Korean women perceived themselves in terms of individuals, colonial subjects, and Korean nationals during a period of significant societal changes. It also intends to broaden the boundaries of gender inquiries in colonial Korea, which often focus on binary constructions of Japanese repression versus national resistance. This study argues that a nationalist paradigm oversimplifies the intricate dynamics and varied experiences of colonized subjects, specifically women. The logic of nationalism places all forms …

An Empirical Study Of Package Management Issues Via Stack Overflow, Syful Islam, Raula Kula, Christoph Treude, Bodin Chinthanet, Takashi Ishio, Kenichi Matsumoto

Research Collection School Of Computing and Information Systems

The package manager (PM) is crucial to most technology stacks, acting as a broker to ensure that a verified dependency package is correctly installed, configured, or removed from an application. Diversity in technology stacks has led to dozens of PMs with various features. While our recent study indicates that package management features of PM are related to end-user experiences, it is unclear what those issues are and what information is required to resolve them. In this paper, we have investigated PM issues faced by end-users through an empirical study of content on Stack Overflow (SO). We carried out a qualitative …

Higher Concentrations Of Microplastics In Runoff From Biosolid-Amended Croplands Than Manure-Amended Croplands, Nasrin Naderi Beni, Shahab Karimifard, John Gilley, Tiffany L. Messer, Amy Schmidt, Shannon Bartelt-Hunt

UK CARES Faculty Publications

Land-applied municipal biosolids, produced from municipal wastewater treatment sludge, contributes to microplastics contamination in agroecosystems. The impacts of biosolids on microplastic concentrations in agricultural soil have been previously investigated, however, the potential for microplastics transport from biosolid-amended croplands has not been previously quantified. In this study, manure and biosolids were applied to field plots, runoff was collected following natural precipitation events and the potential of bacterial biofilm to grow on different microplastic morphologies was investigated. Higher concentrations of microplastics were detected in runoff from plots with land-applied biosolid in comparison with manure-amended and control plots. Fibers and fragments were the …

Free-Living Allen’S Hummingbirds (Selasphorus Sasin) Rarely Use Torpor While Nesting, Erich R. Eberts, Glenn J. Tattersall, Peter J. Auger, Maria Curley, Melissa I. Morado, Eric G. Strauss, Don Powers, Noemi C. Soveral, Bret W. Tobalske, Anusha Shankar

Faculty Publications - Department of Biological & Molecular Science

For reproducing animals, maintaining energy balance despite thermoregulatory challenges is important for surviving and successfully raising offspring. This is especially apparent in small endotherms that exhibit high mass-specific metabolic rates and live in unpredictable environments. Many of these animals use torpor, substantially reducing their metabolic rate and often body temperature to cope with high energetic demands during non-foraging periods. In birds, when the incubating parent uses torpor, the lowered temperatures that thermally sensitive offspring experience could delay development or increase mortality risk. We used thermal imaging to noninvasively explore how nesting female hummingbirds sustain their own energy balance while effectively …

Spiritual Care The Needs Of The Dying, Carmen Kampman

Doctor of Ministry

As an ordained minister within the Pentecostal Assemblies of Canada (PAOC), I regularly provide spiritual care to dying persons and their families. While writing this preface, four residents in the long-term care home where I serve died. There was a ministry season when I felt unequipped to provide spiritual care to dying persons and their families. So, motivated by a gap in my pastoral training and the fear of death I witnessed in my first hospice patient - and several others since then - an opportunity to change that began to emerge. Even Jesus needed people to be with him …

Library Connection, V10n1, February 2023, University Of Northern Iowa. Rod Library.

Library Connection

Contents:

--- Remembering Julie Ann
--- Collections Update
--- Where is she now?: Myle Duong
--- Rod Library's Fall Semester
--- Primary Source Literacy
--- Textbook Equity
--- TEACH Project: Revitalizing Collections, Services and Spaces

Leaf, Plant, To Canopy: A Mechanistic Study On Aboveground Plasticity And Plant Density Within A Maize–Soybean Intercrop System For The Midwest, Usa, Elena A. Pelech, Jochem B. Evers, Taylor L. Pederson, David W. Drag, Peng Fu, Carl J. Bernacchi

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Plants have evolved to adapt to their neighbours through plastic trait responses. In intercrop systems, plant growth occurs at different spatial and temporal dimensions, creating a competitive light environment where aboveground plasticity may support complementarity in light-use efficiency, realizing yield gains per unit area compared with monoculture systems. Physiological and architectural plasticity including the consequences for light-use efficiency and yield in a maize-soybean solar corridor intercrop system was compared, empirically, with the standard monoculture systems of the Midwest, USA. The impact of reducing maize plant density on yield was investigated in the following year. Intercropped maize favoured physiological plasticity over …

Diamond Flower Compounds Show Promise In Repelling Mosquitoes, Erin Garrett

University of Mississippi News

OXFORD, Miss. – A flowering plant may provide a safe, biodegradable replacement for DEET as a primary insect repellent.

February 2023 News Releases, University Of Montana--Missoula. Office Of University Relations

University of Montana News Releases, 1928, 1956-present

No abstract provided.

Development Of A Novel Mathematical Model That Explains Sars-Cov-2 Infection Dynamics In Caco-2 Cells, Vladimir Staroverov, Stepan Nersisyan, Alexei Galatenko, Dmitriy Alekseev, Sofya Lukashevich, Fedor Ployakov, Nikita Anisimov, Alexander Tonevitsky

COVID-19 Papers, Posters, and Presentations

Mathematical modeling is widely used to study within-host viral dynamics. However, to the best of our knowledge, for the case of SARS-CoV-2 such analyses were mainly conducted with the use of viral load data and for the wild type (WT) variant of the virus. In addition, only few studies analyzed models for in vitro data, which are less noisy and more reproducible. In this work we collected multiple data types for SARS-CoV-2-infected Caco-2 cell lines, including infectious virus titers, measurements of intracellular viral RNA, cell viability data and percentage of infected cells for the WT and Delta variants. We showed …

Novel Smad3 Variant Identified In A Patient With Familial Aortopathy Modeled Using A Zebrafish Embryo Assay, Mary Burchett Sheppard, Jeffrey D. Smith, Lisa L. Bergmann, Jakub Konrad Famulski

Saha Cardiovascular Research Center Faculty Publications

In human, pathogenic variants in smad3 are one cause of familial aortopathy. We describe a novel SMAD3 variant of unknown significance (VUS), V244F, in a patient who presented with aortic root dilation, right coronary artery ectasia, abdominal aortic aneurysm, right vertebral artery atresia, and cavernoma. Determination of variant pathogenicity impacted multiple aspects of the patient’s care, including the most appropriate surgical threshold for which to recommend a valve-sparing aortic root replacement. To determine whether the newly identified SMAD3 variant, and whether SMAD3 induced aortopathy in general, can be assayed in a zebrafish embryo model, we injected smad3a mRNA into Tg[kdrl:mCherry] …

Process Intensification Strategies For Green Solvent Mediated Biomass Pretreatment, Ahamed Ullah, Yuxuan Zhang, Can Liu, Qi Qiao, Qing Shao, Jian Shi

Markey Cancer Center Faculty Publications

Demonstrated to be highly effective for lignocellulosic biomass pretreatment, deep eutectic solvent (DES) has attracted increasing attention owing to its advantages of simple synthesis, relatively low chemical cost, and better biocompatibility as compared to certain ionic liquids. Here we provide a critical review of the status of the design/selection of DES for the pretreatment of biomass feedstocks with an emphasis on the process intensification strategies: 1) integration of microwave, ultrasound, and high solid extrusion for pretreating biomass, 2) one-pot DES pretreatment, enzymatic hydrolysis, and fermentation, 3) strategies for DES recycling and product recovery; and 4) recent progress on molecular simulations …

The Parthenon, February 1, 2023, Sandra York, Conner Woodruff, Matt Schaffer, Chayce Matheny, Victoria Ware, Shauntelle Thompson, Rafael Alfonso, Scott Price

The Parthenon

No abstract provided.

Dissolved Organic Phosphorus Removal In Secondary Effluent By Ferrate (Vi): Performance And Mechanism, Lei Zheng, Panpan Gao, Yali Song, Hua Wang, Yang Deng

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

Dissolved organic phosphorus (DOP), which is recalcitrant in municipal wastewater treatment, accounts for 26–81% of dissolved total phosphorus in the effluent. More importantly, the majority of DOP could be bioavailable, potentially threatening the aquatic environment through eutrophication. This study aimed to develop a ferrate (VI)-based advanced treatment to effectively destruct and remove DOP from secondary effluent and use deoxyribonucleic acid (DNA) and adenosine-5’-triphosphate (ATP) as DOP model compounds to explore the relevant mechanisms. The results showed that ferrate (VI) treatment could efficiently destruct and remove 75% of the DOP in secondary effluent from an activated sludge-adopted municipal wastewater treatment plant, …

“Can You Hear Me Now?”: The Right To Counsel Prior To Execution Of A Cell Phone Search Warrant, Nathaniel Mensah

Minnesota Law Review Vols. 106:2 onward (2021-present)

As advances in technology allow law enforcement to gain ever more expansive surveillance powers, the criminal justice system scrambles to keep up. The Fourth Amendment has been the primary vehicle through which modern criminal procedure has adapted to new technologies. That limited approach risks undue harm to criminal defendants and the truth-seeking function of our adversarial system by allowing ex parte warrants authorizing invasive searches of a defendant’s cell phone without the assistance of counsel. This Article calls for applying existing Sixth Amendment doctrine to modern technology, much like the Supreme Court’s recent Fourth Amendment jurisprudence. After putting this previously …

Diagnostic Metabolomic Profiling Of Parkinson's Disease Biospecimens, Peter A. Lewitt, Jia Li, Kuan-Han H. Wu, Mei Lu

Neurology Articles

BACKGROUND: Reliable and sensitive biomarkers are needed for enhancing and predicting Parkinson's disease (PD) diagnosis.

OBJECTIVE: To investigate comprehensive metabolomic profiling of biochemicals in CSF and serum for determining diagnostic biomarkers of PD.

METHODS: Fifty subjects, symptomatic with PD for ≥5 years, were matched to 50 healthy controls (HCs). We used ultrahigh-performance liquid chromatography linked to tandem mass spectrometry (UHPLC-MS/MS) for measuring relative concentrations of ≤1.5 kDalton biochemicals. A reference library created from authentic standards facilitated chemical identifications. Analytes underwent univariate analysis for PD association, with false discovery rate-adjusted p-value (≤0.05) determinations. Multivariate analysis (for identifying a panel of biochemicals …

Permission, Prohibition, And Dynamism, John Thrasher

Philosophy Faculty Books and Book Chapters

Modern, open societies are characterized by growth and dynamism. To many environmentalists, however, it is this very commitment to growth and change that put modern societies at odds with the values of environmental protection. Many argue that the uncertainty that comes from growth endangers the environment, with the implication being that we should adopt general prohibitions rules like the “Precautionary Principle,” which prohibits economic activity unless it can be proven to have no substantial environmental impact. I argue that this conclusion is largely mistaken. Dynamism is so important and in opposition to general prohibition rules that we should avoid them …

Humanized Patient-Derived Xenograft Models Of Disseminated Ovarian Cancer Recapitulate Key Aspects Of The Tumor Immune Environment Within The Peritoneal Cavity, Mara P. Steinkamp, Irina Lagutina, Kathryn J. Brayer, Fred Schultz, Danielle Burke, Vernon S. Pankratz, Sarah F. Adams, Laurie G. Hudson, Scott A. Ness, Angela Wandinger-Ness

Pathology Research and Scholarship

UNLABELLED: The importance of the immune microenvironment in ovarian cancer progression, metastasis, and response to therapies has become increasingly clear, especially with the new emphasis on immunotherapies. To leverage the power of patient-derived xenograft (PDX) models within a humanized immune microenvironment, three ovarian cancer PDXs were grown in humanized NBSGW (huNBSGW) mice engrafted with human CD34

SIGNIFICANCE: huPDX models are ideal preclinical models for testing novel therapies. They reflect the genetic heterogeneity of the patient population, enhance human myeloid differentiation, and recruit immune cells to the tumor microenvironment.

Humanized Patient-Derived Xenograft Models Of Disseminated Ovarian Cancer Recapitulate Key Aspects Of The Tumor Immune Environment Within The Peritoneal Cavity, Mara P. Steinkamp, Irina Lagutina, Kathryn J. Brayer, Fred Schultz, Danielle Burke, Vernon S. Pankratz, Sarah F. Adams, Laurie G. Hudson, Scott A. Ness, Angela Wandinger-Ness

Pathology Research and Scholarship

UNLABELLED: The importance of the immune microenvironment in ovarian cancer progression, metastasis, and response to therapies has become increasingly clear, especially with the new emphasis on immunotherapies. To leverage the power of patient-derived xenograft (PDX) models within a humanized immune microenvironment, three ovarian cancer PDXs were grown in humanized NBSGW (huNBSGW) mice engrafted with human CD34

SIGNIFICANCE: huPDX models are ideal preclinical models for testing novel therapies. They reflect the genetic heterogeneity of the patient population, enhance human myeloid differentiation, and recruit immune cells to the tumor microenvironment.

2023-February-01-Etsu Focuses On Hands-On Learning, Sees Major Growth.Pdf, Iversity Marketing And Communication, East Tennessee State University

ETSU News

During the quarterly meeting of the East Tennessee State University Board of Trustees today, board members received reports of continued growth at the university. Overall enrollment for the spring 2023 semester is up from last year and ETSU’s spring graduate enrollment is the highest it has been in nearly a decade. Graduate enrollment numbers reached 2,396 this spring with master’s programs in computer science, information systems and public health seeing the largest growth. The university also launched a new doctor of occupational therapy program this academic year, which enrolled its first cohort of students.  

“Students – and employers – understand …

Planktonic Prey Size Selection Reveals An Emergent Keystone Predator Effect And Niche Partitioning, Darcy A.A. Taniguchi, Michael J. Follows, Susanne Menden-Deuer

Graduate School of Oceanography Faculty Publications

Marine herbivorous protists are often the dominant grazers of primary production. We developed a size-based model with flexible size-based grazing to encapsulate taxonomic and behavioral diversity. We examined individual and combined grazing impacts by three consumer sizes that span the size range of protistan grazers– 5, 50, and 200 μm—on a size-structured phytoplankton community. Prey size choice and dietary niche width varied with consumer size and with co-existence of other consumers. When all consumer sizes were present, distinct dietary niches emerged, with a range of consumer-prey size ratios spanning from 25:1 to 0.4:1, encompassing the canonical 10:1 often assumed. Grazing …

Anaerobic Digestion Reduces Seed Germination And Viability Of Six Plant Species From The Upper Nile Valley, Egypt, Ahmed M. Abbas, Mohamed Abdelazeem, Stephen J. Novak

Biology Faculty Publications and Presentations

Anaerobic digestion (AD) involves the breakdown of a substrate by mixed microbial communities in the absence of free oxygen. This process has many benefits leading to the production of bioenergy (biogas) and fertilizers (bio-fertilizers). Unfortunately, the bio-fertilizer made using AD may be contaminated with weed seeds and may have the potential of infesting the fields to which it is applied. Thus, the goal of this study is to determine the effects of AD on seed germination and viability of two undesirable crop plants (Triticum aestivum and Sorghum bicolor) and four weed species of reclaimed agricultural land near Qena, …

See Transform Technique For Solving System Of Linear Volterra Integro-Differential Equations Of The Second Kind, Zainab R. Rustam, Nejmaddin A. Sulaiman

Polytechnic Journal

There are many integral transforms that are widely used to solve numerous real-life, science, and engineering problems. In this article, we present SEE transform for determining the solution of the system of linear Volterra integro-differential equations of the second kind. Some applications have been given and solved by using the SEE transform for illustrating the applicability of the SEE transform. Results of the applications assert that the SEE transform is very effective for obtaining the exact solutionof this equation.

Gender-Based Differences Of Inflammatory, Coagulation, And Cardiac Markers In Covid-19 Patients In Erbil City, Zhikal Omar Khudhur, Sonia Elia Ishaq, Rebaz Hamza Salih, Karzan Abdullah, Dahat Hawezy, Karwan Yasin Mohammed, Goran Qadir Othman, Shukur Wasman Smail

Polytechnic Journal

In December 2019, a new coronavirus disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) appeared in Wuhan city and quickly became a global health issue. COVID-19 causes various symptoms ranging from no symptoms to potentially deadly pneumonia. The study aimed to understand the effects of SARS-CoV-2 infection on immune response and the differences in inflammatory, coagulation, and cardiac biomarkers between male and female patients. Between June 1st and November 1st, 2020, 95 cases of SARS-CoV-2 infected individuals were studied at Zanko Hospital. SARS-CoV-2 infection was confirmed using the real-time RT-PCR technique. All cases were analyzed for clinical, epidemiological, …

The Impact Of Dapagliflozin On Aldosterone Hormone In Rats With Heart Failure, Skala Mamand Jawhar, Zana Ahmed Mustafa

Polytechnic Journal

Background: The latest anti-diabetic medication sodium-glucose co-transporter inhibitor along with the lowering of blood glucose has a cardioprotective and reno-protective effect, it has the ability to reduce the development of heart failure and decrease hospitalization in heart failure subjects with and without diabetes. This study was conducted to evaluate the effect of sodium-glucose co-transporter inhibitor dapagliflozin alone and in combination with eplerenone on the aldosterone hormone in the treatment of rats with experimentally induced heart failure. Method: Thirty Wister rats were randomly divided into five groups each of six rats, the first group served as a control group. The heart …