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Large And Tunable Magnetoresistance In Van Der Waals Ferromagnet/Semiconductor Junctions, Wenkai Zhu, Yingmei Zhu, Tong Zhou, Xianpeng Zhang, Hailong Lin, Qirui Cui, Faguang Yan, Ziao Wang, Yongcheng Deng, Hongxin Yang, Lixia Zhao, Igor Žutić, Kirill D. Belashchenko, Kaiyou Wang Sep 2023

Large And Tunable Magnetoresistance In Van Der Waals Ferromagnet/Semiconductor Junctions, Wenkai Zhu, Yingmei Zhu, Tong Zhou, Xianpeng Zhang, Hailong Lin, Qirui Cui, Faguang Yan, Ziao Wang, Yongcheng Deng, Hongxin Yang, Lixia Zhao, Igor Žutić, Kirill D. Belashchenko, Kaiyou Wang

Department of Physics and Astronomy: Faculty Publications

Magnetic tunnel junctions (MTJs) with conventional bulk ferromagnets separated by a nonmagnetic insulating layer are key building blocks in spintronics for magnetic sensors and memory. A radically different approach of using atomically-thin van der Waals (vdW) materials in MTJs is expected to boost their figure of merit, the tunneling magnetoresistance (TMR), while relaxing the lattice-matching requirements from the epitaxial growth and supporting high-quality integration of dissimilar materials with atomically-sharp interfaces. We report TMR up to 192% at 10 K in all-vdW Fe3GeTe2/GaSe/Fe3GeTe2 MTJs. Remarkably, instead of the usual insulating spacer, this large TMR …

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Introduction To 'Artificial Intelligence In Failure Analysis Of Transportation Infrastructure And Materials', Yue Hou, Qiao Dong, Dawei Wang, Jenny Liu Sep 2023

Introduction To 'Artificial Intelligence In Failure Analysis Of Transportation Infrastructure And Materials', Yue Hou, Qiao Dong, Dawei Wang, Jenny Liu

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Transportation infrastructures, including roads, bridges, tunnels, stations, airports and subways, play fundamental roles in modern society. Engineering failures of transportation infrastructures may result in significant damage to the public. The traditional methods are to monitor, store and analyze the information during the infrastructure and material design, testing, construction, numerical simulations, evaluation, operation, maintenance and preservation, using mechanistic-based, material based and statistics-based approaches. In recent decades, artificial intelligence (AI) has drawn the attention of many researchers and has been used as a powerful tool to understand and analyze the engineering failures in transportation infrastructure and materials. AI has the advantages of …

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In Vitro Antioxidant, Anti-Inflammatory, And Photoprotective Activities Of Aqueous Extract Of The Endemic Plant Hammada Scoparia L. From Algeria, Benine Chaima, Djahra Ali Boutlelis, Laiche Ammar Touhami, Tlili Hajer, Tliba Ali, Ben Arfa Abdelkarim, Najjaa Hanen Sep 2023

In Vitro Antioxidant, Anti-Inflammatory, And Photoprotective Activities Of Aqueous Extract Of The Endemic Plant Hammada Scoparia L. From Algeria, Benine Chaima, Djahra Ali Boutlelis, Laiche Ammar Touhami, Tlili Hajer, Tliba Ali, Ben Arfa Abdelkarim, Najjaa Hanen

Karbala International Journal of Modern Science

This study aimed to analyze the chemical profile and evaluate the biological activities of the aqueous extract of H. Scoparia, an endemic plant found in Southeastern Algeria. The aqueous extract was subjected to phytochemical screening, RP-HPLC, and FT-IR analysis. The anti-inflammatory activity was examined using the protein denaturation method, and the photoprotective activity was evaluated using UV-Visible spectrophotometry. The antioxidant activity was assessed using ABTS, DPPH, and FRAP assays. The study found the presence of various secondary metabolites such as polyphenols, tannins, and saponins. This study suggests that H. Scoparia extract has the potential as a natural source of bio-actives …

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Using Powder Metallurgy Process To Produce Ceramic-Metal Composites, Ibrahim F. Abed, Salih, Y. Darweesh Sep 2023

Using Powder Metallurgy Process To Produce Ceramic-Metal Composites, Ibrahim F. Abed, Salih, Y. Darweesh

Al-Bahir

Pressing powders and engineering materials is an innovative method for producing samples with a low cost and multiple industrial applications. In the current article, copper metal was added in different volume ratios to a ceramic material, alumina, for the purpose of improving the properties of alumina, by pressing with a hydraulic press. Where the results of the article showed that the percentage of true porosity after sintering is from (26-13)% with a copper content of (5%) to (25%). As for the apparent porosity after sintering, it decreased from (26-9)% at a copper content of (5-25)%, while the water absorption was …

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Themes, Resources And Uptake Of Acer’S Science In The Early Years Suite, Gayl O'Connor Sep 2023

Themes, Resources And Uptake Of Acer’S Science In The Early Years Suite, Gayl O'Connor

2021-2030 ACER Research Conferences

The Science in the early years series was developed to assist preschool and Foundation to year 2 primary educators to incorporate the latest research in science learning into their programs and teaching practice. This paper focuses on the educator resources developed to support early years educators implement activities to assist children to develop science concepts and inquiry skills. The activities are underpinned by evidence-based research that revealed 4 themes in the early years’ science literature.

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An Attempt To Identify Source Areas Of Clastic Deposits From Selected Caves Of The Prokletije Mountains (Montenegro): A Mineralogical And U-Series Geochemistry Approach, Ditta Kicińska, Jacek Pawlak, Jacek Stienss Sep 2023

An Attempt To Identify Source Areas Of Clastic Deposits From Selected Caves Of The Prokletije Mountains (Montenegro): A Mineralogical And U-Series Geochemistry Approach, Ditta Kicińska, Jacek Pawlak, Jacek Stienss

International Journal of Speleology

The Prokletije Mountains/Albanian Alps are the highest part of the Dinaric Mountains. Paradoxically, these mountains and their cave areas remain among the most enigmatic in Europe, having only recently become subjects of scientific research and cave exploration. This paper focuses on the Kolata and Greben massifs, where the highest, and thus the oldest, cave systems are located. Through the analysis of heavy mineral composition, the apatite-tourmaline index, and cluster analysis for mineralogical composition and uranium isotopic data, it becomes possible to identify the source areas for the cave clastic deposits. It also allow to distinguish multiple paleoflow directions, each corresponding …

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Research Conference 2023: Becoming Lifelong Learners. Proceedings And Program, Kylie Burns (Ed.) Sep 2023

Research Conference 2023: Becoming Lifelong Learners. Proceedings And Program, Kylie Burns (Ed.)

2021-2030 ACER Research Conferences

We know learning in the early years sets the foundations for people’s ongoing academic, cognitive and socio-emotional development. Education across those formative first 12 years is currently segmented, with children often starting fresh in new systems. How can each of us make learning in the early childhood and primary years more effective? Research Conference 2023 will examine research around how we can improve the continuity of learning from birth to 12 years. It will bring together leading international and Australian researchers to provide insights into the best ways to identify, conceptualise, develop and assess these new linkages for learning.

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Transdisciplinary Stem Enactment: An Exploratory Case Study In The Queensland Context, Kristie Schulz Sep 2023

Transdisciplinary Stem Enactment: An Exploratory Case Study In The Queensland Context, Kristie Schulz

2021-2030 ACER Research Conferences

Enacting STEM education in Australian schools is an ambitious task, in a climate of unclear definitions and little implementation advice. Should STEM education simply refer to an umbrella-term of subjects that Australian students need to improve in, or could a cross-disciplinary pedagogy that engages students in authentic problem-solving be realised? This poster outlines a project in which Parklands Christian College designed and enacted a transdisciplinary student-centred ideology of STEM education in 2017. The program has continually evolved using a transdisciplinary pedagogical framework.

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Environmentally Sustainable Computationally Spectrophotometric Resolution Strategy For Analysis Single-Tablet Regimens Of Antihypertension With Overlapped Spectra, Ekram Hany Mohamed, Hayam M. Lotfy, Reem H. Obaydo, Sep 2023

Environmentally Sustainable Computationally Spectrophotometric Resolution Strategy For Analysis Single-Tablet Regimens Of Antihypertension With Overlapped Spectra, Ekram Hany Mohamed, Hayam M. Lotfy, Reem H. Obaydo,

Pharmacy

Single tablet regimens (STRs) for hypertension suppression improve patient satisfaction, quality of life, medication and adherence compared to multi-tablet regimens (MTRs). Development of simple cost effective and at the same time green an ecofriendly method for analysis and resolution of multicomponent and complex mixtures is an increasingly important issue in the field of pharmaceutical industry in general and analytical chemistry in specific. Thus, the presented research deals with two main goals, the first one is concerned with developing and applying a fully validated resolution plan using numerical data of signals on manipulated spectra for successive extraction of parent spectra of …

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Dynamic Influence Diagram-Based Deep Reinforcement Learning Framework And Application For Decision Support For Operators In Control Rooms, Joseph Mietkiewicz, Ammar N. Abbas, Chidera W. Amazu, Anders L. Madsen, Gabriele Baldissone Sep 2023

Dynamic Influence Diagram-Based Deep Reinforcement Learning Framework And Application For Decision Support For Operators In Control Rooms, Joseph Mietkiewicz, Ammar N. Abbas, Chidera W. Amazu, Anders L. Madsen, Gabriele Baldissone

Articles

In today’s complex industrial environment, operators are often faced with challenging situations that require quick and accurate decision-making. The human-machine interface (HMI) can display too much information, leading to information overload and potentially compromising the operator’s ability to respond effectively. To address this challenge, decision support models are needed to assist operators in identifying and responding to potential safety incidents. In this paper, we present an experiment to evaluate the effectiveness of a recommendation system in addressing the challenge of information overload. The case study focuses on a formaldehyde production simulator and examines the performance of an improved Human-Machine Interface …

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Are Scientific Memes Motivating And Does Public Sharing Affect Motivation?, Virginia Clinton-Lisell, Alison E. Kelly Sep 2023

Are Scientific Memes Motivating And Does Public Sharing Affect Motivation?, Virginia Clinton-Lisell, Alison E. Kelly

Education, Health & Behavior Studies Faculty Publications

In recent years, renewable assignments, or student creations that have value outside of a course, have received considerable attention. However, there is little theoretically grounded inquiry into students’ motivation for renewable assignments such as scientific memes. Moreover, it is unknown how public sharing of renewable assignments affects students’ perceived value and learning from coursework. In addition, public sharing could logically affect students’ pride and anxiety related to the renewable assignment, but this lacks empirical testing. The purpose of this study was to determine the effects of public sharing of renewable assignments on students’ perceived value, learning, pride, and anxiety relevant …

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Interviewing Female Teachers As A Male Researcher: A Field Reflection From A Patriarchal Society Perspective, Khim Raj Subedi, Uttam Gaulee Dr Sep 2023

Interviewing Female Teachers As A Male Researcher: A Field Reflection From A Patriarchal Society Perspective, Khim Raj Subedi, Uttam Gaulee Dr

The Qualitative Report

This article examines the role of gender difference in a qualitative interview from the theoretical lenses of the sociocultural perspective of teachers' identity in a localized context of Ph.D. field research. The study blends the researcher's critical reflections during interviewing female teachers in exploring their teacher identity and existing literature on gender differences in a qualitative interview. In addition, a research diary is used as the data source to unpack the complexity of gender dynamics in a qualitative interview. To add to the discussion of gender difference in a qualitative interview, we argued that gender difference between the interviewer and …

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The Effectiveness Of A Steam-Based Learning Approach In Creative Thinking Among Eighth-Grade Students In Jordan, Rany M. Eitah Phd, Jawhara D. Abueita Phd Sep 2023

The Effectiveness Of A Steam-Based Learning Approach In Creative Thinking Among Eighth-Grade Students In Jordan, Rany M. Eitah Phd, Jawhara D. Abueita Phd

International Journal for Research in Education

This study aimed to identify the effect of a STEAM-based learning approach in teaching the subject of educational robots on creative thinking among eighth-grade students in Jordan. A purposive sample was selected and divided into two groups. An experimental group (n=33) studied in a STEAM-based learning approach, whereas the control group (n=31) studied in a traditional method. A pre-posttest of Torrance creative thinking was administered, and the data was analyzed using statistical methods to validate the study results, such as the MANCOVA test. The results showed statistically significant differences between the experimental and control groups in creative thinking, favouring the …

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The Wealth Of Our Commonwealth: Money, Capital, And Finance In A Productive Commercial Republic, Robert Hockett Sep 2023

The Wealth Of Our Commonwealth: Money, Capital, And Finance In A Productive Commercial Republic, Robert Hockett

The Business, Entrepreneurship & Tax Law Review

There is a share of the investment capital available in any society that is generated by the public. In contemporary societies with well-developed payment systems and effective public governance, this share tends to grow large in comparison to that originated by non-public sources, the latter is intermediated and thus must be pre-accumulated, while the former is generated and is the source of what is accumulated. In spite of these truths, the US outsources management of its public capital stock to private sector financial institutions. This is a practice that a host of underappreciated collective action predicaments endemic to decentralized market …

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Permitting The Highs Without Addressing The Lows: Options For Struggling State-Legal Marijuana Businesses Barred From Bankruptcy, Rachel Owings Sep 2023

Permitting The Highs Without Addressing The Lows: Options For Struggling State-Legal Marijuana Businesses Barred From Bankruptcy, Rachel Owings

The Business, Entrepreneurship & Tax Law Review

An increasing number of states are permitting marijuana sales, and an increasing number of individuals are seizing the opportunity to start businesses in an exciting new industry. Though exciting, it is also an industry with an abundance of headwinds: complicated regulatory schemes, high tax rates, and the oversupply of marijuana products as many rush into the industry has led to some firms struggling financially. This Article will summarize the law that prevents such firms from accessing the federal bankruptcy system, analyze some relevant cases pointing at potential routes to bankruptcy for unique situations, and then address state law alternatives to …

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Measurements Of Tidal Flow Variability In Ramsey Sound, Pembrokeshire, Jon Miles, Daniel Coles, David Simmonds, Alex Paine, Sue Barr Sep 2023

Measurements Of Tidal Flow Variability In Ramsey Sound, Pembrokeshire, Jon Miles, Daniel Coles, David Simmonds, Alex Paine, Sue Barr

School of Engineering, Computing and Mathematics

The nature of the flow at in-stream tidal energy sites is particularly important for predicting array and device performance, and also for operations and maintenance planning. Previous developers have reported issues such as the choice of vessel, cost of operations, and the limits of operation of deployment vessels. The dynamics of the flow around slack water has been of particular interest at Ramsey Sound in Pembrokeshire (UK) for planning the recovery of an existing turbine, the Tidal Energy Limited ‘Deltastream’.This research presents flow characteristics of Ramsey Sound, based on analysis of Acoustic Doppler Current Profiler (ADCP) measurements and tide gauge …

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Integrating Glycolysis, Citric Acid Cycle, Pentose Phosphate Pathway, And Fatty Acid Beta‑Oxidation Into A Single Computational Model, Sylwester M. Kloska, Krzysztof Pałczyński, Tomasz Marciniak, Tomasz Talaśka, Beata J. Wysocki, Paul H. Davis, Tadeusz A. Wysocki Sep 2023

Integrating Glycolysis, Citric Acid Cycle, Pentose Phosphate Pathway, And Fatty Acid Beta‑Oxidation Into A Single Computational Model, Sylwester M. Kloska, Krzysztof Pałczyński, Tomasz Marciniak, Tomasz Talaśka, Beata J. Wysocki, Paul H. Davis, Tadeusz A. Wysocki

Department of Electrical and Computer Engineering: Faculty Publications

The metabolic network of a living cell is highly intricate and involves complex interactions between various pathways. In this study, we propose a computational model that integrates glycolysis, the pentose phosphate pathway (PPP), the fatty acids beta-oxidation, and the tricarboxylic acid cycle (TCA cycle) using queueing theory. The model utilizes literature data on metabolite concentrations and enzyme kinetic constants to calculate the probabilities of individual reactions occurring on a microscopic scale, which can be viewed as the reaction rates on a macroscopic scale. However, it should be noted that the model has some limitations, including not accounting for all the …

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Race And Income As Predictors Of Trust In Flood Mitigation Strategies, Wendy Nathaly Sangucho Loachamin Sep 2023

Race And Income As Predictors Of Trust In Flood Mitigation Strategies, Wendy Nathaly Sangucho Loachamin

Dissertations and Theses

Trust plays a central role in coastal flooding management because the support or opposition to costly mitigation strategies depends, in part, on how much stakeholders trust in the effectiveness of these strategies. Despite the importance of trust in the approval of flood mitigation strategies, trust is rarely measured. Furthermore, Environmental Justice (EJ) studies have consistently shown that BIPOC (Black, Indigenous and People of Color) and low-income communities are more vulnerable to environmental hazards. Therefore, if these communities are more exposed to flooding, we hypothesize they will have less trust in flood mitigation strategies to protect them; yet trust is understudied …

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Many-Valued Coalgebraic Logic: From Boolean Algebras To Primal Varieties, Alexander Kurz, Wolfgang Poiger Sep 2023

Many-Valued Coalgebraic Logic: From Boolean Algebras To Primal Varieties, Alexander Kurz, Wolfgang Poiger

Engineering Faculty Articles and Research

We study many-valued coalgebraic logics with primal algebras of truth-degrees. We describe a way to lift algebraic semantics of classical coalgebraic logics, given by an endofunctor on the variety of Boolean algebras, to this many-valued setting, and we show that many important properties of the original logic are inherited by its lifting. Then, we deal with the problem of obtaining a concrete axiomatic presentation of the variety of algebras for this lifted logic, given that we know one for the original one. We solve this problem for a class of presentations which behaves well with respect to a lattice structure …

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Learning In Context: Exploring Student Cognitive Maps, Kevin Davis, Eric J. Tucker Sep 2023

Learning In Context: Exploring Student Cognitive Maps, Kevin Davis, Eric J. Tucker

Mountain Plains Journal of Business and Technology

This study examines how concept-by-concept learning can provide students with a robust conceptual cognitive map for the area under study. In-context learning indicates that students understand how individual concepts are related and apply to real-world situations. Our results show that insights can be gained from understanding the degree of in-context learning in a course. Faculty can use this information to guide instruction in real time and make curriculum adjustments. This approach is also helpful because it can be replicated in any course to develop knowledge about students’ conceptual understanding.

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Comparative Investigations On Microextraction And Conventional Air Sampling Techniques: Challenges And Future Directions, Firoz Ahmed, Mehedi Hasan Roni, Ashiqur Rahman, Sayed M A Salam Sep 2023

Comparative Investigations On Microextraction And Conventional Air Sampling Techniques: Challenges And Future Directions, Firoz Ahmed, Mehedi Hasan Roni, Ashiqur Rahman, Sayed M A Salam

Al-Bahir

Microextraction technique (e.g., solid phase microextraction, thin film microextraction, in-tube extraction) brings a revolutionary change in air sampling techniques over the recent few years. This advanced technique exhibits a high pollutant extraction rate, a low retention time, and a lower error margin compared to conventional air sampling techniques. The accuracy range of microextraction technique (MET) was recorded ~90-95% to isolate the volatile organic components, oxygenated and halogenated carbon particles from the air. However, the efficiency of MET increases additional >3-5% when employed by coupled with gas chromatography or gas chromatography-mass spectrometry. The conventional sampling techniques (e.g., bag sampling, grab sampling) …

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B/Lv Laboratory Accessibility Technology Adapted For Neurodiverse Chemistry Students, Christin B. Monroe Sep 2023

B/Lv Laboratory Accessibility Technology Adapted For Neurodiverse Chemistry Students, Christin B. Monroe

Journal of Science Education for Students with Disabilities

Text-to-speech technology is a common accommodation available for students with disabilities. Despite the ubiquitous nature of text-to-speech, this technology has not been explored in laboratory settings for neurodiverse college students. This study explores the adaptability of laboratory accessible text-to-speech technology (originally developed for blind/low vision (B/LV) students) for neurodiverse students. Students were asked to provide general feedback about the usability and effectiveness of the technology using Likert surveys. The students also answered open-ended questions about how the technology could be adapted to be more neurodiverse friendly. Overall, more than 50% of the students found the technology useful but had specific …

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Stochastic Differential Equations With Transformed Anticipating Conditions, John Abonongo, Patrick Chidzalo Sep 2023

Stochastic Differential Equations With Transformed Anticipating Conditions, John Abonongo, Patrick Chidzalo

Journal of Statistics Applications & Probability

Stochastic differential equations can be specified with anticipatory initial value constraints (IVC) which is useful in many applications where future filtration is known. However, such specification leads to different results than those used in the usual Itoˆ’s calculus, and choice of transformations, at IVC, affects the orientation of equivalent isometry moments and related quantities. To solve this problem, the paper analyzes linear stochastic differential equations with anticipatory initial value constraints specified by an exponential transformation. The conditions for general solutions when such function is defined are derived from Itoˆ’s lemma, Taylor, and Fourier Series. Exact solutions are found using the …

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Proportional Hazard Bivariate Kumaraswamy Model Applied On Fish Mercury Concentration, W. A. Hassanein, A. M. Sobhy, M. M. E. Abd El-Monsef Sep 2023

Proportional Hazard Bivariate Kumaraswamy Model Applied On Fish Mercury Concentration, W. A. Hassanein, A. M. Sobhy, M. M. E. Abd El-Monsef

Journal of Statistics Applications & Probability

International advisory bodies have developed guidelines for testing mercury and aquatic items to protect human health and international trade. The mercury absorption in fish has a great effect on human health. For modeling this problem, a new bivariate distribution using the proportional hazard rate (PHR) model with Kumaraswamy marginal called BKPH is derived and studied via statistical properties and reliability measures. Moreover, several methods of parameter estimation are discussed, including maximum likelihood estimation (MLE), method of moments estimation (MME), and inference function for margins estimation (IFM). In the simulation study, the performance of estimators depending on their estimation methodologies is …

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Modeling Survival Distributions For Certain Real-World Applications Using Nonparametric Hypothesis Testing, M. E. Bakr, Arwa M. Alsahangiti, A. M. Gadallah Sep 2023

Modeling Survival Distributions For Certain Real-World Applications Using Nonparametric Hypothesis Testing, M. E. Bakr, Arwa M. Alsahangiti, A. M. Gadallah

Journal of Statistics Applications & Probability

By analyzing the failure behavior of the recorded survival data, we expect to analyze the different processing strategies or functionality of the tools or systems used in this nonparametric statistical test. It is anticipated that the test data would either behave exponentially or like the NBUE Property. If the survival results are NBUE, it is anticipated that the suggested treatment plan would be successful. Contrarily, As shown in the application section, if the data are exponential, the suggested treatment plan wont have any positive or negative consequences on patients. We evaluated the suggested tests efficacy and power for both complete …

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Reliability Of A K-Out-Of-N: G System Subjected To Marshall-Olkin Type Shocks Concerning Magnitude, S. M. Bakry, N. A. Mokhlis Sep 2023

Reliability Of A K-Out-Of-N: G System Subjected To Marshall-Olkin Type Shocks Concerning Magnitude, S. M. Bakry, N. A. Mokhlis

Journal of Statistics Applications & Probability

In this paper the reliability of a k-out-of-n: G system under the effect of shocks having the Marshall-Olkin type shock models, is studied. The magnitudes of the shocks are considered. The system contains n components and only functions when at least k of these components function. The system is subjected to (n + 1) shocks coming from (n + 1) different sources. The shock coming from the it h source may destroy the it h component, i = 1, . . . , n, while the shock coming from the (n + 1)t h source may destroy all components simultaneously. …

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R-Norm Information Measure With Applications In Multi Criteria Decision Making Technique Under Intuitionistic Fuzzy Set Environment, Rukaya Jamil, Safina Peerzada, Saima Manzoor, M. A. K. Baig Sep 2023

R-Norm Information Measure With Applications In Multi Criteria Decision Making Technique Under Intuitionistic Fuzzy Set Environment, Rukaya Jamil, Safina Peerzada, Saima Manzoor, M. A. K. Baig

Journal of Statistics Applications & Probability

The main aim of this research article is to define a new information measure for quantifying fuzziness in the intuitionistic fuzzy set environment. For this purpose, we present R-norm intuitionistic fuzzy measure that quantifies the amount of vagueness or fuzziness of a particular fuzzy set. We prove that this measure is a valid measure of intuitionistic fuzzy entropy by making it satisfy essential properties. Also, some mathematical properties are used to check the validation of the measure. In the end, a practical example of decision-making is illustrated in terms of Multi Criteria Decision Making problem that presents the application of …

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Disease Progression Modelling Of Alzheimer's Disease Using Probabilistic Principal Components Analysis, Martin Saint-Jalmes, Victor Fedyashov, Daniel Beck, Timothy Baldwin, Noel G. Faux, Pierrick Bourgeat, Jurgen Fripp, Colin L. Masters, Benjamin Goudey Sep 2023

Disease Progression Modelling Of Alzheimer's Disease Using Probabilistic Principal Components Analysis, Martin Saint-Jalmes, Victor Fedyashov, Daniel Beck, Timothy Baldwin, Noel G. Faux, Pierrick Bourgeat, Jurgen Fripp, Colin L. Masters, Benjamin Goudey

Natural Language Processing Faculty Publications

The recent biological redefinition of Alzheimer's Disease (AD) has spurred the development of statistical models that relate changes in biomarkers with neurodegeneration and worsening condition linked to AD. The ability to measure such changes may facilitate earlier diagnoses for affected individuals and help in monitoring the evolution of their condition. Amongst such statistical tools, disease progression models (DPMs) are quantitative, data-driven methods that specifically attempt to describe the temporal dynamics of biomarkers relevant to AD. Due to the heterogeneous nature of this disease, with patients of similar age experiencing different AD-related changes, a challenge facing longitudinal mixed-effects-based DPMs is the …

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Reversibility Of Stranded Cellular Automata, Allyn Loyd Sep 2023

Reversibility Of Stranded Cellular Automata, Allyn Loyd

Mathematical Sciences Technical Reports (MSTR)

Cellular automata, such as the Stranded Cellular Automaton (SCA) model created by Joshua and Lana Holden, can be used to model weaving patterns. Similar models can be constructed to model macrame patterns, where strands are knotted together. If a rule is injective, then it is reversible. If a rule is surjective, then every configuration has at least one predecessor. In this paper, we will discuss the injectivity and surjectivity of several new SCA models in order to find reversible rules. We will also analyze the number of configurations with no predecessors and the number of configurations that map to the …

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Wofford Today Fall 2023, Wofford College. Office Of Marketing And Communications Sep 2023

Wofford Today Fall 2023, Wofford College. Office Of Marketing And Communications

Wofford Today

No abstract provided.

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