Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2023

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 26881 - 26910 of 27075

Full-Text Articles in Entire DC Network

Analyzing Ground Motion Records With Cvi Fuzzy Art, Dustin Tanksley, Xinzhe Yuan, Genda Chen, Donald C. Wunsch Jan 2023

Analyzing Ground Motion Records With Cvi Fuzzy Art, Dustin Tanksley, Xinzhe Yuan, Genda Chen, Donald C. Wunsch

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This paper explores using Cluster Validity Indices Fuzzy Adaptative Resonance Theory (CVI Fuzzy ART) to cluster ground motion records (GMRs). Clustering the features extracted from a supervised network trained for predicting the structure damage results in less overfitting from the trained network. Using Cluster Validity Indices (CVIs) to evaluate the clustering gives feedback to how well the data is being classified, allowing further separation of the data. By using CVI Fuzzy ART in combination with features extracted from a trained Convolutional Neural Network (CNN), we were able to form additional clusters in the data. Within the primary clusters, accuracy was …


Natural Product Co-Metabolism And The Microbiota–Gut–Brain Axis In Age-Related Diseases, Mark Obrenovich, Sandeep Kumar Singh, Yi Li, George Perry, Bushra Siddiqui, Waqas Haq, V. Prakash Reddy Jan 2023

Natural Product Co-Metabolism And The Microbiota–Gut–Brain Axis In Age-Related Diseases, Mark Obrenovich, Sandeep Kumar Singh, Yi Li, George Perry, Bushra Siddiqui, Waqas Haq, V. Prakash Reddy

Chemistry Faculty Research & Creative Works

Complementary alternative medicine approaches are growing treatments of diseases to standard medicine practice. Many of these concepts are being adopted into standard practice and orthomolecular medicine. Age-related diseases, in particular neurodegenerative disorders, are particularly difficult to treat and a cure is likely a distant expectation for many of them. Shifting attention from pharmaceuticals to phytoceuticals and "bugs as drugs" represents a paradigm shift and novel approaches to intervention and management of age-related diseases and downstream effects of aging. Although they have their own unique pathologies, a growing body of evidence suggests Alzheimer's disease (AD) and vascular dementia (VaD) share common …


Comprehensive Evaluation Of A Novel Re-Crosslinkable Preformed Particle Gel For The Water Management Of Reservoir With Concentrated Divalent Ions, Tao Song, Mohamed Ahdaya, Zhanmiao Zhai, Thomas P. Schuman, Baojun Bai Jan 2023

Comprehensive Evaluation Of A Novel Re-Crosslinkable Preformed Particle Gel For The Water Management Of Reservoir With Concentrated Divalent Ions, Tao Song, Mohamed Ahdaya, Zhanmiao Zhai, Thomas P. Schuman, Baojun Bai

Chemistry Faculty Research & Creative Works

As one of the most widely used technology to ameliorate the reservoir's heterogeneity, polymer gels have been applied for more than 60 years. However, how to plug fractured reservoirs with significant abnormal features, high temperature and high salinity, especially the divalent cations, is still a challenging target. This work systematically evaluated a novel salt-resistant re-crosslinkable preformed particle gel (SR-RPPG) designed for fractured reservoirs with excellent salt resistance (up to 5 % CaCl2). We evaluated the swelling kinetics, thermal stability and plugging efficiency of this SR-RPPG. We assessed the swelling kinetic and re-crosslinking behavior of the SR-RPPG through the …


Interval Analysis Method For The Uncertainty And Sensitivity Characterization In Transmission Line Systems, Ping Yuan, Lijun Jiang Jan 2023

Interval Analysis Method For The Uncertainty And Sensitivity Characterization In Transmission Line Systems, Ping Yuan, Lijun Jiang

Electrical and Computer Engineering Faculty Research & Creative Works

Uncertainty in electronic fabrication process could cause serious yield issues and stability concerns. Hence, identifying the resultant range caused by the uncertainty in the system is a critical topic in modern EDA design process. Monte Carlo method is considered as a golden standard but with many drawbacks. In the paper, we propose to use the interval analysis (IA) to analyze the signal integrity and power integrity problems in transmission line (TL) systems. Using the interval representing the uncertainty range of parameters in the system, the uncertainty range of the system can be derived by the derived analytical expression. It is …


Laboratory Schools Annual Report, 2022-2023, Laboratory Schools, Illinois State University Jan 2023

Laboratory Schools Annual Report, 2022-2023, Laboratory Schools, Illinois State University

Annual Reports – Laboratory Schools

Illinois State University Laboratory Schools annual report


Exploring Nate Smith’S Approach To Improvising On The Two-Piece Drum-Kit Through Analysis Of Selected Performances With The Fearless Flyers, Zachary S. Wise Jan 2023

Exploring Nate Smith’S Approach To Improvising On The Two-Piece Drum-Kit Through Analysis Of Selected Performances With The Fearless Flyers, Zachary S. Wise

Theses : Honours

Nate Smith is a highly acclaimed contemporary drummer, songwriter, and composer who displays virtuosic facility and pushes the boundaries of creativity within the contemporary funk and jazz- fusion drumming landscape. In performances with dynamic funk band The Fearless Flyers, Smith uses an uncommon, simplified drum set-up comprising just the kick, snare, and hi-hat (termed the ‘two-piece drum kit’), which introduces a range of challenges around maintaining creativity and the listener’s interest through just three distinct voices. This study investigates Smith’s approach to improvising on this restricted kit through transcription and analysis of six improvisations from selected studio and live performances …


Mining For Sleep Data: An Investigation Into The Sleep Of Fly-In Fly-Out Shift Workers In The Mining Industry And Potential Solutions, Gemma Maisey Jan 2023

Mining For Sleep Data: An Investigation Into The Sleep Of Fly-In Fly-Out Shift Workers In The Mining Industry And Potential Solutions, Gemma Maisey

Theses: Doctorates and Masters

Shift work in the mining industry is a risk factor for sleep loss leading to impaired alertness, which may adversely impact health and safety risks. This risk is being increasingly recognised by leaders and shift workers in the mining industry, however, there is limited knowledge available on the extent of sleep loss and other potential contributing factors. Furthermore, knowledge of the efficacy of individual interventions to assist shift workers to improve their sleep, and the management of risk at an organisational level is scarce. This PhD thesis involved three studies. The first two studies involved the recruitment of 88 shift …


Comparative Study On Development Of Novel Catalytic Oxidation For Removing Emerging Contaminants, Abdul H. Asif Jan 2023

Comparative Study On Development Of Novel Catalytic Oxidation For Removing Emerging Contaminants, Abdul H. Asif

Theses: Doctorates and Masters

‘Wastewater treatment’ is not itself a new concept, where global water bodies have been polluted since the evolution of mankind. As a result of human activities including domestic, industrial and commercial practices, levels of water pollution through aqueous contaminants are increasing every day. Moreover, rapid industrialisation and recent human progress has given rise to a new classification of pollution, that of emerging contaminants (ECs). Further, these chemicals are highly resistant to biodegradation and are capable of travelling, where they can penetrate from one part of the world to another. Whilst traditional wastewater treatment techniques, such as adsorption, might be effective …


Psycho-Spiritual Counselling To Enhance Resiliency As Transformative Education: An Auto/Ethnographic Inquiry Of The Interface Between Spirituality And Positive Psychology, Dominic Savio Jan 2023

Psycho-Spiritual Counselling To Enhance Resiliency As Transformative Education: An Auto/Ethnographic Inquiry Of The Interface Between Spirituality And Positive Psychology, Dominic Savio

Theses: Doctorates and Masters

This thesis attempts to capture my lived experiences of psychospiritual counselling and to describe how my research journey has shaped me personally and professionally. As a priest engaged in psychospiritual counselling internationally for nearly three decades in diverse settings, I attempt to seek further clarity and make sense of my rich experiences in this research. Therefore, I endeavoured to investigate if and how building resiliency through psychospiritual counselling can be comprehended as transformative education.

Experientially speaking, as a priest and psychospiritual counsellor, I recognised that people leaned on their moral vulnerabilities and were blinded to spirituality as a source of …


Optimising A Defence-Aware Threat Modelling Diagram Incorporating A Defence-In-Depth Approach For The Internet-Of-Things, Menaka L. Godakanda Jan 2023

Optimising A Defence-Aware Threat Modelling Diagram Incorporating A Defence-In-Depth Approach For The Internet-Of-Things, Menaka L. Godakanda

Theses: Doctorates and Masters

Modern technology has proliferated into just about every aspect of life while improving the quality of life. For instance, IoT technology has significantly improved over traditional systems, providing easy life, time-saving, financial saving, and security aspects. However, security weaknesses associated with IoT technology can pose a significant threat to the human factor. For instance, smart doorbells can make household life easier, save time, save money, and provide surveillance security. Nevertheless, the security weaknesses in smart doorbells could be exposed to a criminal and pose a danger to the life and money of the household. In addition, IoT technology is constantly …


On Regular D-Handicap Tournaments, Bryan Freyberg, Melissa S. Keranen Jan 2023

On Regular D-Handicap Tournaments, Bryan Freyberg, Melissa S. Keranen

Michigan Tech Publications, Part 1

k-regular d-handicap tournament is an incomplete tournament in which n teams, ranked according to the natural numbers, play exactly k < n − 1 different teams exactly once and the strength of schedule of the ith ranked team is d more than the (i − 1)st ranked team for some d ≥ 1. That is, strength of schedules increase arithmetically by d with strength of team. A d-handicap distance antimagic labeling of a graph (Formula Presented)forms an arithmetic sequence with difference d ≥ 1. A graph G which admits such a labeling is called a d-handicap graph. Constructing a k-regular d-handicap tournament on n teams is equivalent to finding a k-regular d-handicap graph of order n. For d = 1 and n even, the existence has recently been completely settled for all pairs (n, k), and some results are known for d = 2. For d > 2, the only known result is restricted to the case where n is divisible by 2d+2. In this paper, we construct infinite families of d-handicap graphs where the order is not restricted to a power of 2.


Investigating K-12 Computing Education In Four African Countries (Botswana, Kenya, Nigeria, And Uganda), Ethel Tshukudu, Sue Sentance, Oluwatoyin Adelakun-Adeyemo, Keith Quille, Ziling Zhong Jan 2023

Investigating K-12 Computing Education In Four African Countries (Botswana, Kenya, Nigeria, And Uganda), Ethel Tshukudu, Sue Sentance, Oluwatoyin Adelakun-Adeyemo, Keith Quille, Ziling Zhong

Articles

As K-12 computing education becomes more established throughout the world, there is an increasing focus on accessibility for all, whether in a particular country or setting or in areas of the world that may not yet have computing established. This is primarily articulated as an equity issue. The recently developed capacity for, access to, participation in, and experience of computer science education (CAPE) Framework is one way of demonstrating stages and dependencies and understanding relative equity, taking into consideration the disparities between sub-populations. While there is existing research that covers the state of computing education and equity issues, it is …


Enzymatic Electrochemical Biosensors For Neurotransmitters Detection: Recent Achievements And Trends, Zina Fredj, Baljit Singh Dr., Mohamed Bahri, Peiwu Qin, Mohamad Sawan Jan 2023

Enzymatic Electrochemical Biosensors For Neurotransmitters Detection: Recent Achievements And Trends, Zina Fredj, Baljit Singh Dr., Mohamed Bahri, Peiwu Qin, Mohamad Sawan

Articles

Neurotransmitters (NTs) play a crucial role in regulating the behavioral and physiological functions of the nervous system. Imbalances in the concentrations of NT have been directly linked to various neurological diseases (e.g., Parkinson’s, Huntington’s, and Alzheimer’s disease), in addition to multiple psychotic disorders such as schizophrenia, depression, dementia, and other neurodegenerative disorders. Hence, the rapid and real-time monitoring of the NTs is of utmost importance in comprehending neurological functions and identifying disorders. Among different sensing techniques, electrochemical biosensors have garnered significant interest due to their ability to deliver fast results, compatibility for miniaturization and portability, high sensitivity, and good controllability. …


Perspectives Of Science Teachers In Sultanate Of Oman For Grades Five To Eight About The Effectiveness Of The Application Of “Google Classroom Platform” In Providing Students With Self-Learning And Problem-Solving Skills, Asma H. Al-Salmi, Mohamed A. Shahat, Mohammed H. Al-Amri Jan 2023

Perspectives Of Science Teachers In Sultanate Of Oman For Grades Five To Eight About The Effectiveness Of The Application Of “Google Classroom Platform” In Providing Students With Self-Learning And Problem-Solving Skills, Asma H. Al-Salmi, Mohamed A. Shahat, Mohammed H. Al-Amri

Journal of Educational and Psychological Studies

Abstract: The current study's main aim was to monitor science teachers' perceptions for grades five to eight about the effectiveness of the Google Classroom application in equipping students with self-learning and problem-solving skills. The sample of this study consisted of (104) male-teacher and (293) female teachers from eight educational governorates in the Sultanate of Oman. To achieve the objectives of this study, the study used the descriptive methodology by developing a questionnaire. This questionnaire was established based on educational literature and previous studies. It was divided into two domains: self-learning and problem-solving skills, including (23) items. The reliability and the …


Promoting Retention And Success Of Students With Specific Learning Disabilities At The Collegiate Level: A Qualitative Case Study On Student Perceptions, Marcee Wilburn Jan 2023

Promoting Retention And Success Of Students With Specific Learning Disabilities At The Collegiate Level: A Qualitative Case Study On Student Perceptions, Marcee Wilburn

All-Inclusive List of Electronic Theses and Dissertations

Although students with specific learning disabilities are graduating from high school and being accepted into college at higher rates, research shows that the majority of these students are unsuccessful at the collegiate level (Álvarez-Pérez et al., 2012; Connor, 2009; Gil, 2007; Lightfoot et al., 2018; Newman et al., 2011). This study is qualitative in nature with a phenomenological approach investigating the experiences of students with specific learning disabilities at Indiana State University, a mid-size Midwestern university located in Terre Haute, Indiana. Three instruments were used to collect data within this study: semi-structured interviews with students, Beginning College Survey of Student …


Trait Self-Control, Ego-Depletion, And Mental Health In Non-Offending Minor Attracted Persons, Amaya Kathia Bonilla Jan 2023

Trait Self-Control, Ego-Depletion, And Mental Health In Non-Offending Minor Attracted Persons, Amaya Kathia Bonilla

All-Inclusive List of Electronic Theses and Dissertations

Research has focused on understanding the offending behavior of minor attracted persons (MAPs) due to the negative impact their behaviors have on some of the most vulnerable members of society. Further, many different models of impulsivity have been developed to explain these offending behaviors. However, limited research focuses on non-offending MAPs and gaining knowledge about what prevents them from offending. The present study attempted to fill this gap by exploring the relationship between trait self-control and ego-depletion on expression of sexual words. Additionally, the relationship between trait self-control and mental health was assessed. The present study utilized a survey approach …


A Predator-Prey Biological Model With Combined Birth Rates, Self-Limitation And Competition Terms, Joon Hyuk Kang, Lucinda Ford Jan 2023

A Predator-Prey Biological Model With Combined Birth Rates, Self-Limitation And Competition Terms, Joon Hyuk Kang, Lucinda Ford

Faculty Publications

The purpose of this paper is to give sufficient conditions for the existence and uniqueness of positive solutions to a rather general type of elliptic system of the Dirichlet problem on a bounded domain Ω in Rn. Also considered are the effects of perturbations on the coexistence state and uniqueness. The techniques used in this paper are super-sub solutions method, eigenvalues of operators, maximum principles, spectrum estimates, inverse function theory, and general elliptic theory. The arguments also rely on some detailed properties for the solution of logistic equations. These results yield an algebraically computable criterion for the positive coexistence of …


The Mediating Effect Of The Covid-19 Pandemic On The Relationship Between Technology And Organizational Performance: Evidence From Ghana Banking Industry, Manaseh Tsekpo, Williams Kwasi Peprah Jan 2023

The Mediating Effect Of The Covid-19 Pandemic On The Relationship Between Technology And Organizational Performance: Evidence From Ghana Banking Industry, Manaseh Tsekpo, Williams Kwasi Peprah

Faculty Publications

This study aimed to investigate the mediating effect of the COVID-19 pandemic on the relationship between technology and organizational performance, using evidence from the Ghana banking industry. The study adopted a correlation and mediation research design, with 232 respondents conveniently sampled from eight indigenous Ghanaian Banks. The data were analyzed using correlation, regression, and mediation techniques. The results show that technology serves as a catalyst for improving organizational performance and alleviating the negative effects of COVID-19 on organizational performance. The findings also revealed that the COVID-19 pandemic highly mediates technology and organizational performance with a significant positive relationship between technology …


2023-2024 Faculty Handbook, Morehead State University. Faculty Senate. Jan 2023

2023-2024 Faculty Handbook, Morehead State University. Faculty Senate.

Faculty Senate Records

Morehead State University Faculty Handbook for 2023-2024.


Investigation And Development Of Titanium Nitride Solid-State Potentiometric Ph Sensor, Shimrith Paul Shylendra Jan 2023

Investigation And Development Of Titanium Nitride Solid-State Potentiometric Ph Sensor, Shimrith Paul Shylendra

Theses: Doctorates and Masters

The measurement of pH value is crucial parameter in various fields like, drinking water monitoring, food preparation, biomedical and environmental applications. The most common device for pH sensing is the conventional pH glass electrode. While glass electrodes have several advantages, such as Nernstian sensitivity, superior ion selectivity, excellent stability, and extensive operating range, they have several key disadvantages. pH glass electrodes need to be stored in buffer solutions, they are fragile and have limited size and shape, making them impractical for some applications, such as being potentially used as miniature pH sensors for capsule endoscopy and ambulatory esophageal pH monitoring. …


Island Meltdown: Demise Of The Abrolhos Painted Button-Quail Turnix Varius Scintillans In The Face Of Multiple Threats, Ryan Carter Jan 2023

Island Meltdown: Demise Of The Abrolhos Painted Button-Quail Turnix Varius Scintillans In The Face Of Multiple Threats, Ryan Carter

Theses: Doctorates and Masters

Island avifauna suffer high rates of extinction and decline. The major threats to island birds centre around the ecological impacts of invasive predators, competitors, and grazers. The Abrolhos Painted Button-quail (Turnix varius scintillans) is a subspecies that has been determined to be the 5th most likely taxon to become extinct in Australia. T. v. scintillans historically inhabited three islands in the Houtman Abrolhos archipelago off the mid-west coast of Australia. This study aimed to 1) confirm the status of T. v. scintillans on North Island and determine the main causes of decline, 2) model habitat variables with detections from camera …


Comparison Of Methods For Metabolite Extraction From Rat Polycystic Kidney Tissue For Gas Chromatography-Mass Spectrometry-Based Metabolomics, Matthew Oosthuizen Jan 2023

Comparison Of Methods For Metabolite Extraction From Rat Polycystic Kidney Tissue For Gas Chromatography-Mass Spectrometry-Based Metabolomics, Matthew Oosthuizen

Theses: Doctorates and Masters

This study included a series of experiments focussed on comparing extraction protocols for metabolomics-based analysis of Lewis rat polycystic kidney (LPK) tissue samples and healthy Lewis rat tissue samples. Firstly, the optimal sample loading (mass of tissue) was investigated. Based on previous studies, the appropriate mass to test was approximately 5 mg. Three different volumes of tissue extract equivalent to 1, 2.5 and 5mg of pooled healthy kidney tissue and pooled polycystic kidney tissue were trialled to see how they differed in terms of the number of reproducible, uniquely identified peaks captured after metabolite extraction, derivatisation and gas chromatography-mass spectrometry …


An Investigation Of Change In Drone Practices In Broadacre Farming Environments, Hrishikesh S. Neetye Jan 2023

An Investigation Of Change In Drone Practices In Broadacre Farming Environments, Hrishikesh S. Neetye

Theses: Doctorates and Masters

The application of drones in broadacre farming is influenced by novel and emergent factors. Drone technology is subject to legal, financial, social, and technical constraints that affect the Agri-tech sector. This research showed that emerging improvements to drone technology influence the analysis of precision data resulting in disparate and asymmetrically flawed Ag-tech outputs. The novelty of this thesis is that it examines the changes in drone technology through the lens of entropic decay. It considers the planning and controlling of an organisation’s resources to minimise harmful effects through systems change. The rapid advances in drone technology have outpaced the systematic …


An Interpretive Description Study Of The Views And Experience Of Obstetric Fistula Risk Factors Among Women Attending Evangel Vesico Vagina Fistula Centre In Nigeria, Lydia Babatunde-Bulndi Jan 2023

An Interpretive Description Study Of The Views And Experience Of Obstetric Fistula Risk Factors Among Women Attending Evangel Vesico Vagina Fistula Centre In Nigeria, Lydia Babatunde-Bulndi

Theses: Doctorates and Masters

An obstetric fistula is a hole between the birth canal and the bladder or rectum, which is caused by prolonged, obstructed labour without intervention. Sufferers of obstetric fistula may experience chronic urinary and/or faecal incontinence. Although obstetric fistula is directly caused by prolonged obstructed labour, factors such as unskilled birth assistance can increase fistula risk indirectly. Harmful traditional practices, such as female genital mutilation, lack of formal education, illiteracy, poverty, limited social role for women, malnutrition, early marriage before the full development of the pelvis, and a lack of emergency obstetric services are some of the additional factors associated with …


Abmr: An R Package For Agent-Based Model Analysis Of Large-Scale Movements Across Taxa, Benjamin Gochanour, Javier Fernández-López, Andrea Contina Jan 2023

Abmr: An R Package For Agent-Based Model Analysis Of Large-Scale Movements Across Taxa, Benjamin Gochanour, Javier Fernández-López, Andrea Contina

School of Integrative Biological & Chemical Sciences Faculty Publications

  1. Agent-based modelling (ABM) shows promise for animal movement studies. However, a robust, open-source and spatially explicit ABM coding platform is currently lacking.
  2. We present abmR, an R package for conducting continental-scale ABM simulations across animal taxa. The package features two movement functions, each of which relies on the Ornstein–Uhlenbeck (OU) process.
  3. The theoretical background for abmR is discussed and the main functionalities are illustrated using example populations.
  4. Potential future additions to this open-source package may include the ability to specify multiple environmental variables or to model interactions between agents. Additionally, updates may offer opportunities for disease ecology and integration with …


Accident Prediction On E-Bikes Using Computer Vision, Rohith Puvvala Subramanyam Jan 2023

Accident Prediction On E-Bikes Using Computer Vision, Rohith Puvvala Subramanyam

Master's Theses

Micro Mobility refers to small, confined pace range, and lightweight modes oftransportation, which include e-Bikes and e-Scooters. Micro Mobility riders are prone to harm and deadly injuries on city streets. Statistics show that on average 27 out of 82 (33%) humans, in the United States get injured every day in e-motorcycle injuries, which is rapidly increasing as compared to previous years. The current accident prediction strategies have been rather technically complicated to be incorporated onto micromobility vehicles which are lighter in weight and smaller in size. Current strategies bring key challenges to light. First, as micro-mobility vehicles are small and …


Structure, Construction, And Emplacement Of The Northern Margin Of The Late Cretaceous Sonora Pass Intrusive Suite: North-Central Sierra Nevada Batholith, California, Victoria A. Arnold Jan 2023

Structure, Construction, And Emplacement Of The Northern Margin Of The Late Cretaceous Sonora Pass Intrusive Suite: North-Central Sierra Nevada Batholith, California, Victoria A. Arnold

Master's Theses

Of the four voluminous, normally zoned Late Cretaceous intrusive suites of the Sierra Nevada batholith, the >1,000 km², ~96-88 Ma Sonora Pass intrusive suite is the oldest, northernmost, and least studied. It contains the marginal, equigranular Kinney Lakes hornblende-biotite granodiorite and the inner, porphyritic Topaz Lake biotite granodiorite. From this research, the Lake Alpine granodiorite is now considered the outermost part of the Sonora Pass intrusive suite. The suite intruded Early Cretaceous plutons and metasedimentary rocks. The Kinney Lakes and Lake Alpine granodiorites were constructed by multiple phases, as were the plutonic host rocks. The granodiorites are marked by schlieren …


Spatiotemporal Dynamics And Biogeochemical Responses In A Tidally Restricted Moro Cojo Slough, Ryan Chiu Jan 2023

Spatiotemporal Dynamics And Biogeochemical Responses In A Tidally Restricted Moro Cojo Slough, Ryan Chiu

Master's Theses

Four years of observational data for Moro Cojo Slough (MCS), a Mediterranean climate estuary in central California, linked anthropogenic nutrient loading and hydrological modifications to a shift in net ecosystem metabolism (NEM) that differs from the characteristic net heterotrophic behavior of most estuarine systems. A lack of precipitation and limited flushing during the dry seasons, as evidenced from hypersaline waters, contribute to high ecosystem respiration rates that drove NEM to nearly balanced or net autotrophic. During the wet seasons, increased runoff and nutrient loading due to precipitation elevated primary production rates within MCS, characterizing the system as net autotrophic. Box …


Quantum Mechanics And Dynamical Models For Finite Unlabeled Simple Graphs, Nathan M. Lewis Jan 2023

Quantum Mechanics And Dynamical Models For Finite Unlabeled Simple Graphs, Nathan M. Lewis

Master's Theses

This thesis constructs quantum mechanical theories of finite simple graphs for both labeled and unlabeled graphs.These theories may provide a description for discrete spacetime in a quantum gravity theory. Finite simple graphs and their properties are introduced. The first and second quantization of the standard quantum mechanics of particle systems are reviewed. A quantum mechanical theory of graphs similar to first quantization of standard quantum mechanics is developed via a correspondence of graph edges to particles in particle systems. An algorithm for constructing quantum states of graphs which is independent of graph vertex labeling is developed. It builds antisymmetric graphstates …


Intrinsic Motivation By The Principles Of Non-Linear Dynamical Systems, Phu C. Nguyen Jan 2023

Intrinsic Motivation By The Principles Of Non-Linear Dynamical Systems, Phu C. Nguyen

Master's Theses

The design of appropriate control rules for the stabilization of dynamical systems can require quite substantial domain knowledge. Modern AI methodologies, such as Reinforcement Learning, are often used to mitigate the need for such knowledge. However, these can be slow and often rely on at least some hand-designed reward structure, and thus human input, to be more effective. Here, we propose an alternative route to construct rewards requiring only minimal domain knowledge, essentially relying on the structure of the dynamical system itself. For this, we use truncated Lyapunov exponents as rewards to calculate the stabilizing controller from samples. Concretely, the …