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A Contact Stress Capacity Model For Cylindrical Wormsets, Edward E. Osakue, Lucky Anetor Jan 2022

A Contact Stress Capacity Model For Cylindrical Wormsets, Edward E. Osakue, Lucky Anetor

Faculty Publications

A contact stress capacity expression is derived for cylindrical worm sets by considering the worm as a helical rack mating with a helical gear. The concept of the equivalent spur gear for a helical gear defined by the instantaneous radius of curvature in the virtual plane of the helical gear is utilized in the contact stress capacity model formulation. All the basic design parameters of worm and gear are incorporated in the expression which explicitly shows the influence of the base and nominal helix angles on the contact stress. By considering the geometry of the worm and gear in engagement, …

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Experience Design In Leisure And Recreation Curriculum, Madie Neeley, Sydney Burgess, Mat D. Duerden, Neil Lundberg Jan 2022

Experience Design In Leisure And Recreation Curriculum, Madie Neeley, Sydney Burgess, Mat D. Duerden, Neil Lundberg

Faculty Publications

Experience design is a term that has risen to the forefront in a variety of professional fields and has relevance for the field of park and recreation. Park and recreation professionals are primarily focused on providing experiences and thus could naturally consider themselves experienced designers. Surprisingly, experience design is not a topic often discussed within park and recreation publications or curriculum. This absence is at least in part attributable to the fact that experience design is an emerging field that has grown independently out of multiple disciplines. Consequently, the fields of park and recreation and experience design overlap in a …

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Regional Patterns In Prevelar Raising, Joseph A. Stanley Jan 2022

Regional Patterns In Prevelar Raising, Joseph A. Stanley

Faculty Publications

Prevelar raising is the raising of trap and dress vowels before voiced velars. While bag and beg raising have been described in Canada, the Upper Midwest, and the Pacific Northwest, an in-depth investigation of their distribution across North America is lacking, especially for beg. Using an online survey distributed to over 5,000 participants via Reddit (which skews toward younger, White males) and ordinary kriging for spatial interpolation, this study finds that prevelar raising is more widespread than previously reported: bag raising is found in much of the North and the Upper Midwest, and beg raising is far more variable and …

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The Other Legacy Of Qasim Amin: The View From 1908, Hoda Yousef Jan 2022

The Other Legacy Of Qasim Amin: The View From 1908, Hoda Yousef

Faculty Publications

No abstract provided.

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Both Consumptive And Non-Consumptive Effects Of Predators Impact Mosquito Populations And Have Implications For Disease Transmission, Marie C. Russell, Catherine M. Herzog, Zachary Gajewski, Chloe Ramsay, Andy Mccall Jan 2022

Both Consumptive And Non-Consumptive Effects Of Predators Impact Mosquito Populations And Have Implications For Disease Transmission, Marie C. Russell, Catherine M. Herzog, Zachary Gajewski, Chloe Ramsay, Andy Mccall

Faculty Publications

No abstract provided.

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Toward Liquid Cell Quantum Sensing: Ytterbium Complexes With Ultra-Narrow Absorption, Ashley J. Shin, Changling Zhao, Yi Shen, Claire E. Dickerson, Timothy Luke Atallah Jan 2022

Toward Liquid Cell Quantum Sensing: Ytterbium Complexes With Ultra-Narrow Absorption, Ashley J. Shin, Changling Zhao, Yi Shen, Claire E. Dickerson, Timothy Luke Atallah

Faculty Publications

No abstract provided.

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Local Biodiversity Change Reflects Interactions Among Changing Abundance, Evenness, And Richness, Shane A. Blowes, Gergana N. Daskalova, Maria Dornelas, Thore Engel, Nicholas J. Gotelli, Anne E. Magurran, Ines S. Martins, Brian Mcgill, Daniel J. Mcglinn, Alban Sagouis, Hideyasu Shimadzu, Sarah R. Supp, Jonathan M. Chase Jan 2022

Local Biodiversity Change Reflects Interactions Among Changing Abundance, Evenness, And Richness, Shane A. Blowes, Gergana N. Daskalova, Maria Dornelas, Thore Engel, Nicholas J. Gotelli, Anne E. Magurran, Ines S. Martins, Brian Mcgill, Daniel J. Mcglinn, Alban Sagouis, Hideyasu Shimadzu, Sarah R. Supp, Jonathan M. Chase

Faculty Publications

No abstract provided.

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Increase Student Engagement In Online Writing Environments, Jonathan Balzotti, Jason K. Mcdonald, Kevin Haws, Amy Allen Rogers, Matthew J. Baker Jan 2022

Increase Student Engagement In Online Writing Environments, Jonathan Balzotti, Jason K. Mcdonald, Kevin Haws, Amy Allen Rogers, Matthew J. Baker

Faculty Publications

This case study explores a type of educational simulation, an alternative reality game we call a playable case study (PCS), and how its use influenced student engagement in an online writing classroom. The goal of the simulation was to help students create professional communication artifacts and experience real-world professional communication situations. This article reports the effectiveness of the playable case study as a tool specifically for online writing instruction (OWI). The context of our research was a PCS called Microcore. Acting as interns for a company, students are asked to investigate a serious problem that occurs and present a solution …

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Shifting Preservice Teachers’ Sources Of Mathematics Teaching Efficacy Through Scaffolded Reflection: Fostering Commitment To Reform-Based Mathematics, Brooke Krejci, Elana Joram, Anthony J. Gabriele Jan 2022

Shifting Preservice Teachers’ Sources Of Mathematics Teaching Efficacy Through Scaffolded Reflection: Fostering Commitment To Reform-Based Mathematics, Brooke Krejci, Elana Joram, Anthony J. Gabriele

Faculty Publications

Efforts to promote reform-based mathematics instruction in schools are pervasive, yet many teachers continue to use more traditional, procedural methods (Paolucci, 2015). In this chapter, the authors suggest that to achieve sustained adoption of reform-based instruction in mathematics, it is essential for professional development programs to draw teachers’ attention to sources of mathematics teaching efficacy afforded by reform-based teaching, such as enhanced student thinking. Educator preparation programs are ideal settings in which to begin this process, and the authors describe how scaffolded reflection activities within a mathematics methods course were used to focus preservice teachers’ attention on sources of mathematics …

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Occupational Characteristics Of Psychology Baccalaureate Graduates, Adam Butler, Michael Gasser Jan 2022

Occupational Characteristics Of Psychology Baccalaureate Graduates, Adam Butler, Michael Gasser

Faculty Publications

Although the field of psychology is classically associated with a career path in mental health services, career options for graduates with a baccalaureate degree in psychology are far broader. Yet, we do not have a good understanding of the occupational spectrum for psychology graduates or of the skills necessary to excel in those positions. The goal of the present study was to identify the characteristics of occupations held by alumni with a baccalaureate degree in psychology. Understanding these occupational characteristics is useful for career advising and for developing job-relevant skills in the psychology major.

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Magneto-Exothermic Catalytic Chemical Reaction Along A Curved Surface, Muhammad Ashraf, Uzma Ahmad, Saqib Zia, Rama S. R. Gorla, Amnah S. Al-Johani, Ilyas Khan, Mulugeta Andualem Jan 2022

Magneto-Exothermic Catalytic Chemical Reaction Along A Curved Surface, Muhammad Ashraf, Uzma Ahmad, Saqib Zia, Rama S. R. Gorla, Amnah S. Al-Johani, Ilyas Khan, Mulugeta Andualem

Faculty Publications

In the current study, the physical behavior of the boundary layer flows along a curved surface owing exothermic catalytic chemical reaction, and the magnetic field is investigated. The mathematical model comprised of a part of momentum, energy, and mass equations, which are solved using a finite difference method along with primitive variable formulation. Numerical solutions, using the method of quantitative differentiation, are made with the appropriate choice of dimensionless parameters. Analysis of the results obtained shows that the field temperature and flow of fluids are strongly influenced by the combined effects of catalytic chemical reactions and the magnetic field. The …

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Effect Of Connection State & Transport/Application Protocol On The Machine Learning Outlier Detection Of Network Intrusions, George Yuchi, Torrey J. Wagner, Paul Auclair, Brent T. Langhals Jan 2022

Effect Of Connection State & Transport/Application Protocol On The Machine Learning Outlier Detection Of Network Intrusions, George Yuchi, Torrey J. Wagner, Paul Auclair, Brent T. Langhals

Faculty Publications

The majority of cyber infiltration & exfiltration intrusions leave a network footprint, and due to the multi-faceted nature of detecting network intrusions, it is often difficult to detect. In this work a Zeek-processed PCAP dataset containing the metadata of 36,667 network packets was modeled with several machine learning algorithms to classify normal vs. anomalous network activity. Principal component analysis with a 10% contamination factor was used to identify anomalous behavior. Models were created using recursive feature elimination on logistic regression and XGBClassifier algorithms, and also using Bayesian and bandit optimization of neural network hyperparameters. These models were trained on a …

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Measuring Social Connectedness During Shared Leisure Activities Using Oxytocin: A Comparison Of Sampling Urine Versus Saliva, Karen K. Melton, Camilla Hodge, Madeline L. Haron, Maria Boccia Jan 2022

Measuring Social Connectedness During Shared Leisure Activities Using Oxytocin: A Comparison Of Sampling Urine Versus Saliva, Karen K. Melton, Camilla Hodge, Madeline L. Haron, Maria Boccia

Faculty Publications

Leisure experiences are often associated with social connectedness. One measure of social connection underutilized in leisure studies is the neurohormone oxytocin. This methodological note considers issues researchers need to address when incorporating oxytocin in their study design. Noninvasive sources for sampling oxytocin include saliva and urine; however, the decision about which method to employ is not well documented. This study provides the first methodological note on collecting oxytocin in leisure studies and provides a comparison of urine vs. saliva measures for oxytocin in the context of leisure activities. Our findings indicate that urine samples are more sensitive to oxytocin change …

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Ecology Of Family Experiences: Contextualizing Family Leisure For Human Development & Family Relations, Camilla Hodge, Kelly D. Chandler, Karen K. Melton, Kelly L. Hoke, Jennifer Blodgett Jan 2022

Ecology Of Family Experiences: Contextualizing Family Leisure For Human Development & Family Relations, Camilla Hodge, Kelly D. Chandler, Karen K. Melton, Kelly L. Hoke, Jennifer Blodgett

Faculty Publications

Research on family communication in the leisure context has been limited to retrospective survey reconstructions of perceptions of communication patterns. This study examines the validity of sociometric badges for measuring family communication in real-time. Seven families (married, two-parent families with at least one child ages 4–17 years) wore sociometric badges during a 30-minute leisure activity in a lab setting. We compared mean badge estimates of family communication duration to mean coded video data from the same 30-minute sessions. Intraclass correlation coefficients indicated sociometric badges are not as reliable as video-coded estimates of speech; however, among parents, non-significant mean comparisons partially …

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Incremental Improvements: Examining Instructional Changes And Rationales Of K-12 Online Teachers Using The Picrat And 4e Frameworks, Jered Borup, Rocio Quiroga Velasquez, Charles R. Graham, Leanna Archambault, Royce Kimmons Jan 2022

Incremental Improvements: Examining Instructional Changes And Rationales Of K-12 Online Teachers Using The Picrat And 4e Frameworks, Jered Borup, Rocio Quiroga Velasquez, Charles R. Graham, Leanna Archambault, Royce Kimmons

Faculty Publications

Teacher preparation programs have been slow to prepare teachers for the online environment, leaving many online teachers needing to learn on the job. However, little research has examined how online teachers grow as educators. One way to better understand this growth is to examine the changes online teachers make in their instruction and their rationales for making them. In this qualitative case study, we surveyed online teachers three times during an academic year regarding their instructional changes. Participants described these changes and categorized them on a modified PICRAT matrix to indicate if the changes made student learning more passive, interactive, …

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Students Coming Prepared To Class? A Review Of The Literature With A Call To Research, Melissa P. Larson, Jace Linnell Jan 2022

Students Coming Prepared To Class? A Review Of The Literature With A Call To Research, Melissa P. Larson, Jace Linnell

Faculty Publications

In this literature review, we show that little attention has been given to pre-class learning in a flipped classroom setting. To support learning, a flipped classroom shifts the learning of basic content from a classroom setting to a pre-class setting, thereby freeing up time within class for more active learning activities. Active learning activities support student-centered learning as peers collaborate with deep application of pre-class learning concepts. Thus, higher-order skills of critical thinking and lifelong learning, which are valued in the accounting education curriculum and profession, can be developed through a flipped classroom pedagogy. However, if pre-class learning is not …

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Asynchronous Video Interviews And Artificial Intelligence: A Multi-Study Exploration, Tanner Skousen, Jacob Steffen, Cherileigh Chandler, Warren Rosengren, James Gaskin, Thomas O. Meservy Jan 2022

Asynchronous Video Interviews And Artificial Intelligence: A Multi-Study Exploration, Tanner Skousen, Jacob Steffen, Cherileigh Chandler, Warren Rosengren, James Gaskin, Thomas O. Meservy

Faculty Publications

Asynchronous video interviews (AVIs) provide scalable, low-cost opportunities for matching interviewees and organizations. However, the implications of a shift from synchronous interviews aren’t fully understood, especially when design choices such as AI evaluations are employed. To better understand the impact of AVIs, we undertook an exploratory qualitative study in addition to an experiment. The first study involves 100 qualitative responses and exploratory quantitative tests on the relationships between coded values and demographic and trait variables of the respondents. Our second study tests the impact of AI feedback using a large online AVI service while accounting for various disadvantaged groups that …

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Multidimensional Signals And Analytic Flexibility: Estimating Degrees Of Freedom In Human-Speech Analyses, Stefano Coretta, Joseph V. Casillas, Joseph A. Stanley, Timo B. Roettger Jan 2022

Multidimensional Signals And Analytic Flexibility: Estimating Degrees Of Freedom In Human-Speech Analyses, Stefano Coretta, Joseph V. Casillas, Joseph A. Stanley, Timo B. Roettger

Faculty Publications

Recent empirical studies have highlighted the large degree of analytic flexibility in data analysis that can lead to substantially different conclusions based on the same data set. Thus, researchers have expressed their concerns that these researcher degrees of freedom might facilitate bias and can lead to claims that do not stand the test of time. Even greater flexibility is to be expected in fields in which the primary data lend themselves to a variety of possible operationalizations. The multidimensional, temporally extended nature of speech constitutes an ideal testing ground for assessing the variability in analytic approaches, which derives not only …

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Machine Learning Land Cover And Land Use Classification Of 4-Band Satellite Imagery, Lorelei Turner, Torrey J. Wagner, Paul Auclair, Brent T. Langhals Jan 2022

Machine Learning Land Cover And Land Use Classification Of 4-Band Satellite Imagery, Lorelei Turner, Torrey J. Wagner, Paul Auclair, Brent T. Langhals

Faculty Publications

Land-cover and land-use classification generates categories of terrestrial features, such as water or trees, which can be used to track how land is used. This work applies classical, ensemble and neural network machine learning algorithms to a multispectral remote sensing dataset containing 405,000 28x28 pixel image patches in 4 electromagnetic frequency bands. For each algorithm, model metrics and prediction execution time were evaluated, resulting in two families of models; fast and precise. The prediction time for an 81,000-patch group of predictions wasmodels, and >5s for the precise models, and there was not a significant change in prediction time when a …

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Effect Of Trigonometric Transformations On The Machine Learning Prediction And Quality Control Of Air Temperature, Andrea Fenoglio, Torrey J. Wagner, Paul Auclair, Brent T. Langhals Jan 2022

Effect Of Trigonometric Transformations On The Machine Learning Prediction And Quality Control Of Air Temperature, Andrea Fenoglio, Torrey J. Wagner, Paul Auclair, Brent T. Langhals

Faculty Publications

Conducting effective quality control of weather observations in real time is vital to the 14th Weather Squadron’s mission of providing authoritative climate data. This study explored automated quality control of weather observations by applying multiple machine learning techniques to 43,487 surface weather observations from 5 years of data at a single location. Temperature predictors were evaluated using recursive feature elimination on linear regression and XGBoost algorithms, as well as using a neural network hyperparameter sweep. Modeling was repeated after calculating trigonometric transforms of temporal variables to give the models insight into the diurnal heating cycle of the Earth. All models …

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Superior Status: Relational Obstacles In Law To Racial Justice And Lgbtq Equality, Osamudia James Jan 2022

Superior Status: Relational Obstacles In Law To Racial Justice And Lgbtq Equality, Osamudia James

Faculty Publications

Animus and discrimination are the two legal lenses through which in-equality is typically assessed and understood. Insufficient attention, however, is paid to the role of status in animating inequality, even in landmark cases thought to be equality-promoting. More than an animating force between intractable po-litical conflicts, status also informs the development of equality law in the United States. When courts, advocates, and policymakers affirm, ignore, miss, or con-cede to status hierarchies instead of dismantling them, those groups that perceive a decrease in their status relative to others will only use “equality-promoting” doctrine to rebalance status hierarchy in their favor. Public …

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Exploring The Relationships Among Stoichiometric Coefficients, Number Of Transferred Electrons, Mean Oxidation Number Of Carbons, And Oxidative Ratio In Organic Combustion Reactions, Pong Kau Yuen, Cheng Man Diana Lau Dec 2021

Exploring The Relationships Among Stoichiometric Coefficients, Number Of Transferred Electrons, Mean Oxidation Number Of Carbons, And Oxidative Ratio In Organic Combustion Reactions, Pong Kau Yuen, Cheng Man Diana Lau

Faculty Publications

Combustion reactions, stoichiometry, and redox reactions are some of the basic contents in chemistry curriculum. Although the counting of transferred electrons is critical in redox reactions, assigning mean oxidation number of organic carbons (ONc) is not always easy. Even though the relationship between the oxidative ratio (OR) and ONc is known, the relationship between the number of transferred electrons (Te−) and OR has not been thoroughly studied. The H-atom method has already been developed to balance and deduct organic combustion reactions. It can be used further to help establish the relationships among the stoichiometric coefficients (SC), the number of transferred …

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Supercongruences For Rigid Hypergeometric Calabi–Yau Threefolds, Ling Long, Fang Ting Tu, Noriko Yui, Wadim Zudilin Dec 2021

Supercongruences For Rigid Hypergeometric Calabi–Yau Threefolds, Ling Long, Fang Ting Tu, Noriko Yui, Wadim Zudilin

Faculty Publications

We establish the supercongruences for the fourteen rigid hypergeometric Calabi–Yau threefolds over Q conjectured by Rodriguez-Villegas in 2003. Our first method is based on Dwork's theory of p-adic unit roots and it allows us to establish the supercongruences between the truncated hypergeometric series and the corresponding unit roots for ordinary primes. The other method makes use of the theory of hypergeometric motives, in particular, adapts the techniques from the recent work of Beukers, Cohen and Mellit on finite hypergeometric sums over Q. Essential ingredients in executing the both approaches are the modularity of the underlying Calabi–Yau threefolds and a p-adic …

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Intercomparison Of Salinity Products In The Beaufort Gyre And Arctic Ocean, Sarah B. Hall, Bulusu Subrahmanyam, James H. Morison Dec 2021

Intercomparison Of Salinity Products In The Beaufort Gyre And Arctic Ocean, Sarah B. Hall, Bulusu Subrahmanyam, James H. Morison

Faculty Publications

Salinity is the primary determinant of the Arctic Ocean’s density structure. Freshwater accumulation and distribution in the Arctic Ocean have varied significantly in recent decades and certainly in the Beaufort Gyre (BG). In this study, we analyze salinity variations in the BG region between 2012 and 2017. We use in situ salinity observations from the Seasonal Ice Zone Reconnaissance Surveys (SIZRS), CTD casts from the Beaufort Gyre Exploration Project (BGP), and the EN4 data to validate and compare with satellite observations from Soil Moisture Active Passive (SMAP), Soil Moisture and Ocean Salinity (SMOS), and Aquarius Optimally Interpolated Sea Surface Salinity …

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Review—Concentration Measurements In Molten Chloride Salts Using Electrochemical Methods, Tyler Williams, Rankin Shum, Devin Rappleye Dec 2021

Review—Concentration Measurements In Molten Chloride Salts Using Electrochemical Methods, Tyler Williams, Rankin Shum, Devin Rappleye

Faculty Publications

The electrochemical measurement of concentration in molten chloride salts is a valuable tool for the control of existing and potential industrial processes, recycling of precious materials and energy production. The electrochemical techniques commonly used to measure concentration and each techniques’ associated theory are discussed. Practices which improve measurement accuracy and precision are set forth. Exceptionally accurate and precise measurements published in the literature are evaluated based on their performance in specified concentration ranges. The strengths and weaknesses of the most accurate measurements are briefly explored. Chronopotentiometry (CP) and square wave voltammetry (SWV) are accurate and precise with low concentration measurements. …

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Splashing Of Large Helium Nanodroplets Upon Surface Collisions, Paul Martini, Simon Albertini, Felix Laimer, Miriam Meyer, Michael Gatchell, Olof E. Echt, Fabio Zappa, Paul Scheier Dec 2021

Splashing Of Large Helium Nanodroplets Upon Surface Collisions, Paul Martini, Simon Albertini, Felix Laimer, Miriam Meyer, Michael Gatchell, Olof E. Echt, Fabio Zappa, Paul Scheier

Faculty Publications

In the present work we observe that helium nanodroplets colliding with surfaces can exhibit splashing in a way that is analogous to classical liquids. We use transmission electron microscopy and mass spectrometry to demonstrate that neutral and ionic dopants embedded in the droplets are efficiently backscattered in such events. High abundances of weakly bound He-tagged ions of both polarities indicate a gentle extraction mechanism of these ions from the droplets upon collision with a solid surface. This backscattering process is observed for dopant particles with masses up to 400 kilodaltons, indicating an unexpected mechanism that effectively lowers deposition rates of …

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Explaining Differences In One Teacher’S Instruction Across Multiple Tracked Fifth-Grade Classes, Corey Webel, Kimberly A. Conner, Christina Sheffel Dec 2021

Explaining Differences In One Teacher’S Instruction Across Multiple Tracked Fifth-Grade Classes, Corey Webel, Kimberly A. Conner, Christina Sheffel

Faculty Publications

In this article, we describe the case of “Keri,” a fifth-grade teacher who had completed an Elementary Mathematics Specialist (EMS) certification program. Drawn from a larger study investigating the knowledge, beliefs, and practices of EMSs, Keri's case was unique in that she was teaching mathematics to four classes in a departmentalized structure, where students were placed into different classes according to perceived mathematics ability. Observations from the larger study revealed that Keri's instructional practices did not align with her reported beliefs and knowledge. To explore this deviation, we conducted a case study where we observed Keri's instruction across multiple classes …

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Acute Pediatric Chagas Disease In Antioquia, Colombia: A Geographic Location Of Suspected Oral Transmission, Lídia Gual-Gonzalez, Catalina Aango-Ferreira, Laura Camila Lopera-Restrepo, Omar Cantillo-Barraza, Daniela Velásquez Marín, Natalia Restrepo Bustamante, Omar Triana-Chavez, Melissa Nolan Ph.D., Mph Dec 2021

Acute Pediatric Chagas Disease In Antioquia, Colombia: A Geographic Location Of Suspected Oral Transmission, Lídia Gual-Gonzalez, Catalina Aango-Ferreira, Laura Camila Lopera-Restrepo, Omar Cantillo-Barraza, Daniela Velásquez Marín, Natalia Restrepo Bustamante, Omar Triana-Chavez, Melissa Nolan Ph.D., Mph

Faculty Publications

Chagas disease, Trypanosoma cruzi infection, is an insidious cause of heart failure in Latin America. Early diagnosis and treatment are critical to prevent irreversible myocardial damage that progressively accumulates over decades. Several structural barriers account for the less than 1% of cases in Colombia being treated, including poor physician knowledge, especially considering that some regions are considered non-endemic. The two cases reported here represent an emerging epidemiologic scenario associated with pediatric Chagas disease. Both cases are suspected oral transmitted parasitic infection in a geographic region of Colombia (Andean region of Antioquia) where no previous oral transmission of Chagas disease had …

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On The Synthesis Of Optimal Control Laws, Meir Pachter, Isaac E. Weintraub Dec 2021

On The Synthesis Of Optimal Control Laws, Meir Pachter, Isaac E. Weintraub

Faculty Publications

In this paper we advocate for Isaacs' method for the solution of differential games to be applied to the solution of optimal control problems. To make the argument, the vehicle employed is Pontryagin's canonical optimal control example, which entails a double integrator plant. However, rather than controlling the state to the origin, we correctly require the end state to reach a terminal set that contains the origin in its interior. Indeed, in practice, it is required to control to a prescribed tolerance rather than reach a desired end state; achieving tight tolerances is expensive, and from a theoretical point of …

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Salt Marshes As Groundwater Buffers For Development: A Survey Of South Carolina Salt Marsh Basins, Alicia M. Wilson, Meghan Shanahan, Erik M. Smith Dec 2021

Salt Marshes As Groundwater Buffers For Development: A Survey Of South Carolina Salt Marsh Basins, Alicia M. Wilson, Meghan Shanahan, Erik M. Smith

Faculty Publications

Salt marshes serve as zones of intense groundwater mixing and reaction between freshwater uplands and estuaries. This raises the question of whether the impacts of upland development on nutrient and carbon species can be transmitted through salt marshes via groundwater, or whether salt marshes can buffer estuarine waters from coastal development. We sampled groundwater from fifteen tidal creek basins in South Carolina to test for compositional differences associated with development and marsh width. Groundwater samples from near creekbanks and below freshwater uplands were analyzed for salinity, total dissolved nitrogen and phosphorus, and dissolved organic carbon. Analyses revealed significantly higher TDN …

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