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Articles 1711 - 1740 of 33676
Full-Text Articles in Entire DC Network
Scanning Electrochemical Microscopy Reveals That Model Silicon Anodes Demonstrate Global Solid Electrolyte Interphase Passivation Degradation During Calendar Aging, Josefine D. Mcbrayer, Noah B. Schorr, Mila Nhu Lam, Melissa L. Meyerson, Katharine L. Harrison, Shelley D. Minteer
Scanning Electrochemical Microscopy Reveals That Model Silicon Anodes Demonstrate Global Solid Electrolyte Interphase Passivation Degradation During Calendar Aging, Josefine D. Mcbrayer, Noah B. Schorr, Mila Nhu Lam, Melissa L. Meyerson, Katharine L. Harrison, Shelley D. Minteer
Chemistry Faculty Research & Creative Works
Silicon is a promising next-generation anode to increase energy density over commercial graphite anodes, but calendar life remains problematic. In this work, scanning electrochemical microscopy was used to track the site-specific reactivity of a silicon thin film surface over time to determine if undesirable Faradaic reactions were occurring at the formed solid electrolyte interphase (SEI) during calendar aging in four case scenarios: formation between 1.5 V and 100 mV with subsequent rest starting at (1) 1.5 V and (2) 100 mV and formation between 0.75 V and 100 mV with subsequent rest starting at (3) 0.75 V and (4) 100 …
Ensemble-Learning Model Based Ultimate Moment Prediction Of Reinforced Concrete Members Strengthened By Uhpc, Woubishet Zewdu Taffese, Yanping Zhu, Genda Chen
Ensemble-Learning Model Based Ultimate Moment Prediction Of Reinforced Concrete Members Strengthened By Uhpc, Woubishet Zewdu Taffese, Yanping Zhu, Genda Chen
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Data-driven model development brings new approaches to solve conventional civil engineering problems, which are usually considered and answered by experimental, analytical, and numerical methods. This study aims to develop an ensemble learning model (i.e., XGBoost: eXtreme Gradient Boosting) to predict ultimate moment of reinforced concrete (RC) members strengthened by a newly developed concrete technology – ultrahigh performance concrete (UHPC). The study considered two scenarios, incorporating eighteen and seventeen features, with one feature modification involving the transformation of width and height to the cross-sectional area of RC members. Incorporating three substrate damage levels, two substrate surface treatments preceding UHPC strengthening, and …
A Reputation System For Provably-Robust Decision Making In Iot Blockchain Networks, Charles C. Rawlins, Sarangapani Jagannathan, Venkata Sriram Siddhardh Nadendla
A Reputation System For Provably-Robust Decision Making In Iot Blockchain Networks, Charles C. Rawlins, Sarangapani Jagannathan, Venkata Sriram Siddhardh Nadendla
Electrical and Computer Engineering Faculty Research & Creative Works
Blockchain systems have been successful in discerning truthful information from interagent interaction amidst possible attackers or conflicts, which is crucial for the completion of nontrivial tasks in distributed networking. However, the state-of-the-art blockchain protocols are limited to resource-rich applications where reliably connected nodes within the network are equipped with significant computing power to run lottery-based proof-of-work (pow) consensus. The purpose of this work is to address these challenges for implementation in a severely resource-constrained distributed network with internet of things (iot) devices. The contribution of this work is a novel lightweight alternative, called weight-based reputation (wbr) scheme, to classify new …
Application Of The Immobilized Low-Activity Waste Glass Corrosion Model To The Static Dissolution Of 24 Statistically-Designed Alkali-Borosilicate Waste Glasses, Sebastien N. Kerisit, James J. Neeway, Charmayne E. Lonergan, Benjamin Parruzot, Jarrod V. Crum, Richard C. Daniel, Gary L. Smith, R. Matthew Asmussen
Application Of The Immobilized Low-Activity Waste Glass Corrosion Model To The Static Dissolution Of 24 Statistically-Designed Alkali-Borosilicate Waste Glasses, Sebastien N. Kerisit, James J. Neeway, Charmayne E. Lonergan, Benjamin Parruzot, Jarrod V. Crum, Richard C. Daniel, Gary L. Smith, R. Matthew Asmussen
Materials Science and Engineering Faculty Research & Creative Works
Glass corrosion models that capture the complex mechanisms of the glass-water reaction enable the prediction of nuclear waste glass durability in disposal scenarios. Parameterization of such models is challenging because of the need to capture changes in corrosion behavior with time, reaction conditions, and glass composition. Here, we describe and employ the ILAW (immobilized low-activity waste) glass corrosion model (IGCM) in geochemical simulations of static dissolution tests, at two temperatures (40 °C and 90 °C), for a matrix of 24 enhanced low-activity waste (eLAW) glasses statistically designed to cover a processable composition space defined by 8 major glass components (Al …
Decoding Crystallization Behavior Of Aluminoborosilicate Glasses: From Structural Descriptors To Quantitative Structure – Property Relationship (Qspr) Based Predictive Models, Yingcheng Zhang, Marco Bertani, Alfonso Pedone, Randall E. Youngman, Gregory Tricot, Aditya Kumar, Ashutosh Goel
Decoding Crystallization Behavior Of Aluminoborosilicate Glasses: From Structural Descriptors To Quantitative Structure – Property Relationship (Qspr) Based Predictive Models, Yingcheng Zhang, Marco Bertani, Alfonso Pedone, Randall E. Youngman, Gregory Tricot, Aditya Kumar, Ashutosh Goel
Materials Science and Engineering Faculty Research & Creative Works
Successful decoding of structural descriptors controlling the crystallization in multicomponent functional glasses can pave the way for the transition from the trial-and-error approach and empirical modeling for glass/glass-ceramic composition design toward more rational and scientifically rigorous Quantitative Structure-Property Relationship (QSPR) based models. However, due to the compositional and structural complexity of multicomponent glasses and the longer time and length scales associated with nucleation, the development and validation of QSPR models are still in it's infancy. The work presented in the article is an attempt to leap forward in this pursuit by combining the strengths of experimental and computational materials science …
Seeding Effects Of Submicron Caal-No3 Ldh Particles On The Hydration And Properties Of Portland Cement And Sulfoaluminate Cement Pastes, Sukanta K. Mondal, Monday Uchenna Okoronkwo
Seeding Effects Of Submicron Caal-No3 Ldh Particles On The Hydration And Properties Of Portland Cement And Sulfoaluminate Cement Pastes, Sukanta K. Mondal, Monday Uchenna Okoronkwo
Chemical and Biochemical Engineering Faculty Research & Creative Works
Layered Double Hydroxide (LDH) Is Reported To Improve The Durability Of Concretes, Primarily Due To Its Ability To Exchange Anionic Species, Including Chloride, Which Is Implicated In Corrosion-Driven Durability Issues. However, There Is No Comprehensive Study Investigating The Effect Of LDH On The Properties Of Different Cement Systems At Both Early And Mature Ages. In This Study, The Early Age And Mature Age Properties Of Portland Cement (OPC) And Calcium Sulfoaluminate (CSA) Cement Pastes Seeded With Submicron-Sized Calcium Aluminum-NO3 LDH (CaAl-NO3 LDH) Were Investigated. The Effects Of The 1–5%mass Dosage Of LDH On The Hydration Of Both Cement Systems Were …
Seeding Effects Of Submicron Caal-No3 Ldh Particles On The Hydration And Properties Of Portland Cement And Sulfoaluminate Cement Pastes, Sukanta K. Mondal, Monday Uchenna Okoronkwo
Seeding Effects Of Submicron Caal-No3 Ldh Particles On The Hydration And Properties Of Portland Cement And Sulfoaluminate Cement Pastes, Sukanta K. Mondal, Monday Uchenna Okoronkwo
Chemical and Biochemical Engineering Faculty Research & Creative Works
Layered double hydroxide (LDH) is reported to improve the durability of concretes, primarily due to its ability to exchange anionic species, including chloride, which is implicated in corrosion-driven durability issues. However, there is no comprehensive study investigating the effect of LDH on the properties of different cement systems at both early and mature ages. in this study, the early age and mature age properties of Portland cement (OPC) and calcium sulfoaluminate (CSA) cement pastes seeded with submicron-sized calcium aluminum-NO3 LDH (CaAl-NO3 LDH) were investigated. the effects of the 1–5%mass dosage of LDH on the hydration of both cement systems were …
Assessing Hydrolysis Performance Of Ce(Oh)4@Pim-1 Composites Functionalized With Amidoxime, Aldoxime, And Carboxylate Groups Toward Dimethyl 4-Nitrophenylphosphonate, A Nerve Agent Simulant, Peter O. Aina, Sukanta K. Mondal, Ali A. Rownaghi, Fateme Rezaei
Assessing Hydrolysis Performance Of Ce(Oh)4@Pim-1 Composites Functionalized With Amidoxime, Aldoxime, And Carboxylate Groups Toward Dimethyl 4-Nitrophenylphosphonate, A Nerve Agent Simulant, Peter O. Aina, Sukanta K. Mondal, Ali A. Rownaghi, Fateme Rezaei
Chemical and Biochemical Engineering Faculty Research & Creative Works
In recent years, significant attention has been directed toward evaluating the reactivity of diverse polymers to gauge their catalytic activity against hazardous chemicals. Among these polymers, pim-1 has emerged as an exceptional candidate due to its noteworthy attributes including high surface area, excellent solubility, and the capability to fine-tune the nitrile functional groups along its polymeric backbone. In this study, we explored the impact of different functional groups, such as amidoxime (ax), aldoxime (ox), and carboxylate (cooh), on the degradation of dimethyl 4-nitrophenylphosphonate (dmnp) in comparison to pure pim-1 and their respective ce(oh)4-loaded polymer composites. Remarkably, the pim-1-ax analog exhibited …
Application Of T Gates For Anti-Concentration In Clifford Circuits, Matthew Dominicis, Mason Toombs, Gabriel Riddle, Parineeta Puja Saha, Himanth Bobba
Application Of T Gates For Anti-Concentration In Clifford Circuits, Matthew Dominicis, Mason Toombs, Gabriel Riddle, Parineeta Puja Saha, Himanth Bobba
Undergraduate Research Conference at Missouri S&T
Our study examines the integration of non-Clifford T gates into randomly generated Clifford circuits to enhance their universal unitary capacity. We investigate the impact of T gates on circuit output randomness, focusing on generating random Clifford circuits and analyzing the effects of T gates. Through simulations and analysis, we assess the effectiveness of this modification in achieving outputs consistent with Anti concentration properties while minimizing the required number of Clifford gates. Our findings provide valuable insights into quantum circuits, with implications for quantum computing applications.
Competition Or Prey: C. Elegans Populations In The Presence Of P. Pacificus, Charles Greene, Elena Zobel, Andrea Scharf
Competition Or Prey: C. Elegans Populations In The Presence Of P. Pacificus, Charles Greene, Elena Zobel, Andrea Scharf
Undergraduate Research Conference at Missouri S&T
The predatory and territorial behaviors of the model organism P. pacificus provides a useful opportunity to study territorial defensive behaviors and optional predatory behaviors in relation to availability of preferred food sources. P. pacificus will be grown with C. elegans in shared cultures, in which E. coli will be placed and used to feed both species of worm. The number of predation events and territory defense events by P. pacificus against C. elegans will be recorded and tracked at differing levels of food concentrations. One potential issue is the different mouth morphs found in P. pacificus, with the stenostomatous (in …
The Application Of Poly-Ε-Caprolactone Nanoparticles For Endotoxin Removal, Mikaela Ritchie
The Application Of Poly-Ε-Caprolactone Nanoparticles For Endotoxin Removal, Mikaela Ritchie
Undergraduate Research Conference at Missouri S&T
Lipopolysaccharides (LPS), also known as endotoxins, are toxins released from the cell walls of gram-negative bacteria upon their death. Ingestion of LPS by humans or animals can initiate inflammatory immune responses, resulting in blood vessels dilation, organ dysfunction and potential death. These toxins contaminate a variety of manufacturing processes from the pharmaceutical industry to animal feed production, posing a risk to humans and animals alike. This study details the production of PCL nanoparticle capable of removing LPS from water and a preliminary analysis of the removal efficiency. The outcomes of this research hold significant implications for industries reliant on bacterial …
Using Efficient Global Optimization With Cfd For Aerodynamic Optimization, Aaron Spillars, Nathan Roberts, Xiaoping Du
Using Efficient Global Optimization With Cfd For Aerodynamic Optimization, Aaron Spillars, Nathan Roberts, Xiaoping Du
Undergraduate Research Conference at Missouri S&T
Machine learning and optimization are the stepping blocks in broad engineering areas, such as computational fluid dynamics (CFO) and CFO-based design optimization. Using the CFO-based optimization framework, MACH-Aero, we were able to use the SLSQP optimizer and compared the results with a reference case completed by the SNOPT optimizer. Results verified that our SLSQP optimizer was working properly. The solver created showed that our objective function had a difference in magnitude of 0.000019 allowing us to conclude that our solver was working as intended. However, there were several failed attempts before reaching a successful run that gave us a satisfactory …
The History Of The Billboard Hot 100 And Its Process, Brileigh Cates
The History Of The Billboard Hot 100 And Its Process, Brileigh Cates
Undergraduate Research Conference at Missouri S&T
The Billboard Hot 100 has been around for decades, and it is believed without much accreditation. What really is Billboard, and why is it so popular? Why have other charting companies not taken up as much popularity? How does Billboard determine the popularity of artists? How has this changed with the introduction of the internet? This research project addresses all of these question, allowing the validity of the data collection to be addressed.
Lung Cancer Drug Study Using Alc Nanoparticles, Noah Sparks
Lung Cancer Drug Study Using Alc Nanoparticles, Noah Sparks
Undergraduate Research Conference at Missouri S&T
In a previous project it was determined ALC polarized lipid nanoparticles have a high transfection efficiency in some lung cancer cell lines. Building off this information, these ALC particles will now be tested with an actual lung cancer drug. This process will consist of searching articles for promising lung cancer drugs and selecting one for use. The ALC particles will then undergo a comprehensive drug study using multiple lung cancer cell lines with the selected drug. Aspects such as drug release rate, transfection rate, cytotoxicity, etc. will be determined. The goal is to determine whether ALC nanoparticles show real promise …
Numerical Studies On Bose–Einstein Condensates, Megan Benkendorf
Numerical Studies On Bose–Einstein Condensates, Megan Benkendorf
Undergraduate Research Conference at Missouri S&T
Bose-Einstein condensate (BEC) is a state of matter near absolute zero temperature for which all atoms lose their individual properties and condense into a macroscopic coherent "super-wave". The superfluidity of BEC has been the focus of active research since the first experimental realization of BEC in 1995. The recent launch of the Cold Atom Laboratory to the space station on May 21, 2018, has once again drawn spotlights to these fascinating properties of BEC. In this project, we will carry out numerical studies to understand the behavior of exciton-polariton BECs. A modified Gross-Pitaevskii equation is used to model the dynamics …
American Resistance: The Bund And Their Opposition, Emily Copeland
American Resistance: The Bund And Their Opposition, Emily Copeland
Undergraduate Research Conference at Missouri S&T
This Honors Thesis investigates American opposition to the German American Bund during the turbulent 1930s. It reveals the differing attitudes within American society during the German American Bund's peak. While some embraced fascist ideologies, others protested against them, highlighting the intricacy of American politics leading up to World War II. This study explores the efforts undertaken by Americans to counter the fascist doctrine of the German American Bund on democratic soil. The research gathered insight from documents and artifacts at institutions such as the St. Louis Kaplan Feldman Holocaust Museum, Curtis Laws Wilson Library, and other archival sources, investigating the …
Neurodiversity And Openness In Responses To Al In Writing, Joely Grace Hall
Neurodiversity And Openness In Responses To Al In Writing, Joely Grace Hall
Undergraduate Research Conference at Missouri S&T
Neurodivergent individuals encompass a broad spectrum of cognitive profiles, including autism, ADHD, dyslexia, depression, anxiety and other neurological differences and learning disabilities. Over the past decade, artificial intelligence (Al) technologies have rapidly evolved, permeating various aspects of society, from healthcare to education and employment. Al often makes mistakes when analyzing papers written by neurodivergent students and flags them for plagiarism, when there is no plagiarism in the paper. We want to investigate why this happens and ways to work around this. We have put together a Prolific survey to get general opinions on Al, neurodiversity types and writing classes. With …
Uncertainty Quantification Of Thermal Capacitance Calorimeter For High-Enthalpy Flows, Logan Banker, Davide Vigano
Uncertainty Quantification Of Thermal Capacitance Calorimeter For High-Enthalpy Flows, Logan Banker, Davide Vigano
Undergraduate Research Conference at Missouri S&T
Thermal capacitance calorimeters are the standard instrument used to measure cold wall heat fluxes in high-enthalpy flows that simulates hypersonic flight conditions. These instruments play a fundamental role in the development and testing of Thermal Protection Systems for space re-entry conditions. However, despite their rugged and simple design, they are affected by large uncertainty errors. These have been estimated in literature at 15%. Despite their importance, and large errors, no proper uncertainty analysis has been performed. Uncertainty analysis is difficult due to the complex physics of the environment these calorimeters have to operate into.
Analysis Of The Benefits And Risks Of Just In Time Inventory Management, Ian Hodge
Analysis Of The Benefits And Risks Of Just In Time Inventory Management, Ian Hodge
Undergraduate Research Conference at Missouri S&T
Just in time (JIT) inventory management has become increasingly popular in industry due to its well known benefits. JIT aims to streamline inventory processes by minimizing excess stock, reducing holding costs, and improving operational efficiency overall. This approach introduces inherent risks, by minimizing the safety stock the company becomes more vulnerable to supply chain disruptions. If unexpected circumstances lead to a supply delay, the company will rapidly deplete their supplies and may have to cease operations until they are resupplied, resulting in decreased revenue and leaving customers unfulfilled.This research project will examine case studies of companies that adopted JIT methodology …
Thermo-Gravimetric Analysis Of Variables Of Oxidization, Clark Nguyen, Mario F. Buchely
Thermo-Gravimetric Analysis Of Variables Of Oxidization, Clark Nguyen, Mario F. Buchely
Undergraduate Research Conference at Missouri S&T
Oxidation phenomena play a critical role in high temperature metallurgical processing and the performance during life cycle of components made of both high and low alloy steels. Therefore, the development of a precise experimental methodology to quantify oxidation processes is critically important. This report summarizes my experimental study of the oxidation behavior of high and low alloy steel, including kinetics of surface oxide layer formation and spallation. The focus of study was in determining the complex interactions between alloying elements in steel matrix and oxidation environment, composition and surface morphology of formed oxides. This report will also explore how the …
Development Of A Force Perturbation Handle For Physical Interaction Research In Humans, Henry Tien, Riley Still, Yun Seong Song
Development Of A Force Perturbation Handle For Physical Interaction Research In Humans, Henry Tien, Riley Still, Yun Seong Song
Undergraduate Research Conference at Missouri S&T
The vision of developing more advanced robots that physically interact with people begins with the study of how people interact with each other. Even the simplest interactions between humans, such as shaking hands, provides tremendous challenges for current robots and minimal research has been conducted on the inner workings of these interactions. Understanding the process and mechanics behind effective and intuitive physical human-human interaction (pHHI) will yield meaningful insight into designing robots capable of assisting the elderly, operating side by side with workers, or even dancing with people. To study this process, a custom Force Perturbation Handle (FPH) was developed, …
A New Genetic Tool For Quorum-Sensing Ba, Amelia Markwell
A New Genetic Tool For Quorum-Sensing Ba, Amelia Markwell
Undergraduate Research Conference at Missouri S&T
This current research project focuses on the use of cell-to-cell communication in Bacterial Strain competition, specifically in soybean plants. Soybean plants are a high-yield crop produced here in the midwest, bringing in more than 8 billion dollars in monetary output for our state. The lab work focuses on one specific bacteria strain farmers commonly find in soybeans; this is called Bradyrhizobium japonicum. This nitrogen-fixing bacteria improves plant growth drastically. Cells have a way of communicating with each other in order to share information and adjust gene regulation accordingly. This is known as quorum sensing. My research last year focused on …
Modality's Effect On Aesthetic Ratings Of Poetry, Jessica Frame
Modality's Effect On Aesthetic Ratings Of Poetry, Jessica Frame
Undergraduate Research Conference at Missouri S&T
Previous research has shown that vividness of evoked imagery is the strongest contributor to aesthetic pleasure for poetry. However, it is 114 unknown whether modality of the poem has an effect on the relationship between vividness and aesthetic appeal, as past work has only used written poems. In this study we want to evaluate rating of vividness, valence, arousal, and aesthetic appeal based on the modality in which poems are presented (listening only, reading only, or combined). Participants were randomly assigned to one of the three modalities: text-only (N=81 ), audio-only (N=74), or combined audio/text (N=78). Our results showed that …
Biosensors For Antibacterial Medical Applications, Ryan Fagan, Shelby Wallen
Biosensors For Antibacterial Medical Applications, Ryan Fagan, Shelby Wallen
Undergraduate Research Conference at Missouri S&T
Healthcare associated infections are significant concern in medicine and as antibiotics are becoming less effective, we need new alternative methods to treat them. We are testing various materials that can be used to prevent infections in healthcare settings and in wound treatments. These materials include bioactive glass and modified hydrogel materials. From these studies we've learned these are effective in killing bacteria and preventing infections. The goal of this project is to determine the mechanism at which these materials kill bacteria. Our approach is to construct biosensor strains that can indicate bacterial stress response to antimicrobial agents. We have used …
A Fisher Information-Based Approach To Improve Labeling Efficiency Of Neural Network Models In Image Classification, Joshua Caruso
A Fisher Information-Based Approach To Improve Labeling Efficiency Of Neural Network Models In Image Classification, Joshua Caruso
Undergraduate Research Conference at Missouri S&T
Active learning is a framework for training machine learning models where the goal is to reduce the number of labels used during training. Neural network models used for image classification require a large training dataset to achieve good accuracy. This project will use active learning to reduce the number of labels needed for training neural network models. We propose to use the Fisher information of the neural network parameters to actively select which images are labelled and included in the training data. A key challenge is the large number of parameters in commonly used neural network models, which significantly increases …
How Does The C-Terminus Of Iqg1 Work In Cytokinesis?, Rae Tordilla, Katie Shannon
How Does The C-Terminus Of Iqg1 Work In Cytokinesis?, Rae Tordilla, Katie Shannon
Undergraduate Research Conference at Missouri S&T
During cytokinesis, the division of the cytoplasm between cells is controlled by the contraction of an actomyosin ring. Iqg1, a crucial regulator of cytokinesis in Saccharomyces cerevisiae, is needed for the assembly and contraction of this ring. Already, it has been found that a domain in the Iqg1 C-terminus is crucial for S. cerevisiae survival. In this study, a regulated Iqg1 allele is introduced to yeast. This will allow researchers to turn off the wild-type allele of the Iqg1 gene under specified conditions, which allows for the study of the effects of the C-terminal Iqg1 deletion. Progress towards making the …
Molecular Genetics And Phylogeny Of Bigmouth Shiner, Notropis Dorsalis, James Ramette, Patrick Appiah, Shila Koju, Jacqueline Kluba, Heath St, Dennis, Christian Bigler, Robert Hrabik, David D. Duvernell
Molecular Genetics And Phylogeny Of Bigmouth Shiner, Notropis Dorsalis, James Ramette, Patrick Appiah, Shila Koju, Jacqueline Kluba, Heath St, Dennis, Christian Bigler, Robert Hrabik, David D. Duvernell
Undergraduate Research Conference at Missouri S&T
The study of North American freshwater ichthyofauna reveals a diversity shaped by the continent's geologic past and the extensive effects of Pleistocene glaciation on river systems. Ericymba dorsalis (Bigmouth 69 Shiner) is a minnow species with a broad distribution in the Mississippi River basin from Wyoming to New York. Despite exhibiting consistent morphological features across its range, the species' widespread northern distribution suggests the potential existence of multiple, genetically distinct lineages. This research tested the hypothesis that separate drainage systems harbor genetically distinct groups of E. dorsalis. Our results identified five clades, each associated with major drainages. Populations of the …
Co2 Pricing Pass-Through To Electricity Prices Under Partial Regulations, Love Gami
Co2 Pricing Pass-Through To Electricity Prices Under Partial Regulations, Love Gami
Undergraduate Research Conference at Missouri S&T
With climate change becoming a growing concern, carbon trading has gained attention as a key solution to reducing carbon emissions. However, this raises a concern about whether polluters pass the cost of carbon to electricity prices. This study aims to assess the impact of CO2 pricing on electricity prices in the PJM market where some areas are regulated by carbon trading while others are not. Our findings reveal a significant impact of CO2 prices across all regulated areas, encompassing both real- time and day-ahead markets. Moreover, the impact extends to non-regulated areas, indicating a spillover effect within the PJM market. …
Test-Optional Policy’S Impact On Statewide Act Scores, D. Steven Stutts
Test-Optional Policy’S Impact On Statewide Act Scores, D. Steven Stutts
Undergraduate Research Conference at Missouri S&T
This study investigates the causal impact of test-optional policies on statewide average ACT scores. A panel dataset comprised of participation rates and average composite ACT scores over an eight-year period for nine states that began the period with 100 percent participation was collected using annual reports released by the ACT corporation and available on the National Center for Education Statistics (NCES) website. A generalized difference-in-differences design with staggered treatment periods was implemented, with states using a test-mandatory regime spanning the eight-year period constituting the control group and states that began the period as test-mandatory and switched to test-optional at some …
Microbial Matrix: Genetic And Chemical Aspects Of Cell-Cell Communication, Amelia Markwell, Sophia Nicolette Militante
Microbial Matrix: Genetic And Chemical Aspects Of Cell-Cell Communication, Amelia Markwell, Sophia Nicolette Militante
Undergraduate Research Conference at Missouri S&T
This research project focuses on looking at different quorum-sensing positive strains in bradyrhizobium japonicum, a species of legume-root bacteria found in soybean plants across the Midwest. Soybean plants are a high-yield crop produced here in the midwest, bringing in more than 8 billion dollars in monetary output for our state, making it Missouri's economic engine. Our objective, is to use different chemical testing methods to distinguish genetic differences between negative strains. This can be done through polymerase chain reaction, gel electrophoresis, and gene editing. Our goal has been to PCR amplify a fine-tuned promoter then clone it into the gene. …