Digital Commons Network^™

Discrete Fractional Boundary Value Problems And Inequalities, Martin Bohner, Nick Fewster-Young

Mathematics and Statistics Faculty Research & Creative Works

In this paper, a general nonlinear discrete fractional boundary value problem is considered, of order between one and two. The main result is an existence theorem, proving the existence of at least one solution to the boundary value problem, subject to validity of a certain key inequality that allows unrestricted growth in the problem. The proof of this existence theorem is accomplished by using Brouwer's fixed point theorem as well as two other main results of this paper, namely, first, a result showing that the solutions of the boundary value problem are exactly the solutions to a certain equivalent integral …

Estimating Average Treatment Effect On The Treated Via Sufficient Dimension Reduction, Lu Li, Wei Luo, Xuerong Meggie Wen, Zhou Yu

Mathematics and Statistics Faculty Research & Creative Works

In this paper, we propose to use sufficient dimension reduction (SDR) in conjunction with nonparametric techniques to estimate the average treatment effect on the treated (ATT), a parameter of common interest in causal inference. The proposed method is applicable under a general low-dimensional structure in the data and avoids both the risk of model misspecification and the "curse of dimensionality," for which it often outperforms the existing parametric and nonparametric methods. We develop the theoretical properties of the proposed method, including its asymptotic normality, its asymptotic super-efficiency, and its equivalent form as an augmented inverse probability weighting estimator. We also …

Oscillation And Nonoscillation Criteria For Four-Dimensional Advanced And Delay Time-Scale Systems, Elvan Akin, Gülşah Yenpi

Mathematics and Statistics Faculty Research & Creative Works

We obtain oscillation and Non oscillation criteria for solutions to four-dimensional advanced and delay systems of first-order dynamic equations on time scales. To establish oscillation criteria, we eliminate Non oscillatory solutions of the systems based on the sign of components of the solutions. Furthermore, some of our results are new in the discrete case.

Eps Component Report Of Findings: Salary Matrices, Lisa Morris Phd, Amy F. Johnson Phd

Salary Matrices

In Part I of this report we provide a detailed explanation of how the salary matrices are calculated and the results of the updated analyses based on 2019-20 data. Previous salary matrices are included for comparison. In Part II we present an analysis of staff education and experience profiles across districts by district size, poverty level and rurality in order to investigate whether salary matrices are allocating funds in ways that support or undermine equity goals embedded in the EPS funding model. Part III presents analysis pertinent to Maine’s recent policy change to increase minimum teacher salaries to $40,000. The …

Software Training In Hep, Sudhir Malik, Samuel Meehan, Kilian Lieret, Meirin Oan Evans, Michel H. Villanueva, Daniel S. Katz, Graeme A. Stewart, Peter Elmer, Sizar Aziz, Matthew Bellis, Riccardo Maria Bianchi, Gianluca Bianco, Johan Sebastian Bonilla, Angela Burger, Jackson Burzynski, David Chamont, Matthew Feickert, Philipp Gadow, Bernhard Manfred Gruber

Faculty and Student Publications

The long-term sustainability of the high-energy physics (HEP) research software ecosystem is essential to the field. With new facilities and upgrades coming online throughout the 2020s, this will only become increasingly important. Meeting the sustainability challenge requires a workforce with a combination of HEP domain knowledge and advanced software skills. The required software skills fall into three broad groups. The first is fundamental and generic software engineering (e.g., Unix, version control, C++, and continuous integration). The second is knowledge of domain-specific HEP packages and practices (e.g., the ROOT data format and analysis framework). The third is more advanced knowledge involving …

Toi-2109: An Ultrahot Gas Giant On A 16 Hr Orbit, I. Wong, A. Shporer, G. Zhou, D. Kitzmann, T. D. Komacek, X. Tan, R. Tronsgaard, L. A. Buchhave, S. Vissapragada, M. Greklek-Mckeon, J. E. Rodriguez, J. P. Ahlers, S. N. Quinn, E. Furlan, S. B. Howell, A. Bieryla, K. Heng, H. A. Knutson, K. A. Collins, K. K. Mcleod, P. Berlind, P. Brown, M. L. Calkins, J. P. De Leon, E. Esparza-Borges, G. A. Esquerdo, A. Fukui, T. Gan, E. Girardin, C. L. Gnilka, M. Ikoma, Eric L.N. Jensen, J. Kielkopf, T. Kodama, S. Kurita, K. V. Lester, P. Lewin, G. Marino, F. Murgas, N. Narita, E. Pallé, R. P. Schwarz, K. G. Stassun, M. Tamura, N. Watanabe, B. Benneke, G. R. Ricker, D. W. Latham, R. Vanderspek, S. Seager, J. N. Winn, J. M. Jenkins, D. A. Caldwell, W. Fong, C. X. Huang, I. Mireles, J. E. Schlieder, B. Shiao, J. N. Villaseñor

Physics & Astronomy Faculty Works

We report the discovery of an ultrahot Jupiter with an extremely short orbital period of 0.67247414 ± 0.00000028 days (∼16 hr). The 1.347 ± 0.047 R_Jup planet, initially identified by the Transiting Exoplanet Survey Satellite (TESS) mission, orbits TOI-2109 (TIC 392476080)—a T_eff ∼ 6500 K F-type star with a mass of 1.447 ± 0.077 M_☉, a radius of 1.698 ± 0.060 R_☉, and a rotational velocity of v sin i_* = 81.9 ± 1.7 km s⁻¹. The planetary nature of TOI-2109b was confirmed through radial-velocity measurements, which yielded a planet mass of 5.02 …

Tic 172900988: A Transiting Circumbinary Planet Detected In One Sector Of Tess Data, V. B. Kostov, B. P. Powell, J. A. Orosz, W. F. Welsh, W. Cochran, K. A. Collins, M. Endl, C. Hellier, D. W. Latham, P. Macqueen, J. Pepper, B. Quarles, L. Sairam, G. Torres, R. F. Wilson, S. Bergeron, P. Boyce, A. Bieryla, R. Buchheim, C. B. Christiansen, D. R. Ciardi, K. I. Collins, D. M. Conti, S. Dixon, P. Guerra, N. Haghighipour, J. Herman, E. G. Hintz, W. S. Howard, Eric L.N. Jensen, J. F. Kielkopf, E. Kruse, N. M. Law, D. Martin, P. F. L. Maxted, B. T. Montet, F. Murgas, M. Nelson, G. Olmschenk, S. Otero, R. Quimby, M. Richmond, R. P. Schwarz, A. Shporer, K. G. Stassun, D. C. Stephens, A. H. M. J. Triaud, J. Ulowetz, B. S. Walter, E. Wiley, D. Wood, M. Yenawine, E. Agol, T. Barclay, T. G. Beatty, I. Boisse, D. A. Caldwell, J. Christiansen, K. D. Colón, M. Deleuil, L. Doyle, M. Fausnaugh, G. Fűrész, E. A. Gilbert, G. Hébrard, D. J. James, J. Jenkins, S. R. Kane, R. C. Kidwell Jr., R. Kopparapu, G. Li, J. J. Lissauer, M. B. Lund, S. R. Majewski, T. Mazeh, S. N. Quinn, E. Quintana, G. Ricker, J. E. Rodriguez, J. Rowe, A. Santerne, J. Schlieder, S. Seager, M. R. Standing, D. J. Stevens, E. B. Ting, R. Vanderspek, J. N. Winn

Physics & Astronomy Faculty Works

We report the first discovery of a transiting circumbinary planet detected from a single sector of Transiting Exoplanet Survey Satellite (TESS) data. During Sector 21, the planet TIC 172900988b transited the primary star and then five days later it transited the secondary star. The binary is itself eclipsing, with a period P ≈ 19.7 days and an eccentricity e ≈ 0.45. Archival data from ASAS-SN, Evryscope, KELT, and SuperWASP reveal a prominent apsidal motion of the binary orbit, caused by the dynamical interactions between the binary and the planet. A comprehensive photodynamical analysis of the TESS, archival and follow-up data …

Exploring Electroencephalography With A Model Inspired By Quantum Mechanics, Nicholas J.M. Popiel, Colin Metrow, Geoffrey Laforge, Adrian M. Owen, Bobby Stojanoski, Andrea Soddu

Brain and Mind Institute Researchers' Publications

An outstanding issue in cognitive neuroscience concerns how the brain is organized across different conditions. For instance, during the resting-state condition, the brain can be clustered into reliable and reproducible networks (e.g., sensory, default, executive networks). Interestingly, the same networks emerge during active conditions in response to various tasks. If similar patterns of neural activity have been found across diverse conditions, and therefore, different underlying processes and experiences of the environment, is the brain organized by a fundamental organizational principle? To test this, we applied mathematical formalisms borrowed from quantum mechanisms to model electroencephalogram (EEG) data. We uncovered a tendency …

The Hashtag Project: The First Submillimeter Images Of The Andromeda Galaxy From The Ground, Matthew W.L. Smith, Stephen A. Eales, Thomas G. Williams, Bumhyun Lee, Zongnan Li, Pauline Barmby, Martin Bureau, Scott Chapman, Brian S. Cho, Aeree Chung, Eun Jung Chung, Hui Hsuan Chung, Christopher J.R. Clark, David L. Clements, Timothy A. Davis, Ilse De Looze, David J. Eden, Gayathri Athikkat-Eknath, George P. Ford, Yu Gao, Walter Gear, Haley L. Gomez, Richard De Grijs, Jinhua He, Luis C. Ho, Thomas M. Hughes, Sihan Jiao, Zhiyuan Li, Francisca Kemper

Physics and Astronomy Publications

Observing nearby galaxies with submillimeter telescopes on the ground has two major challenges. First, the brightness is significantly reduced at long submillimeter wavelengths compared to the brightness at the peak of the dust emission. Second, it is necessary to use a high-pass spatial filter to remove atmospheric noise on large angular scales, which has the unwelcome side effect of also removing the galaxy's large-scale structure. We have developed a technique for producing high-resolution submillimeter images of galaxies of large angular size by using the telescope on the ground to determine the small-scale structure (the large Fourier components) and a space …

Ua45/6 Commencement Program, Wku Registrar

WKU Administration Documents

Commencement program for fall 2021.

Is Testing A Laughing Matter? Achievement Effects Via Working Memory And Humor Relevance, Ivan Jay Wayne

Dissertations

The relevant literature concerning the relationship between humorous intervention and academic performance features conflicting evidence. Authors present evidence that humor is able to directly benefit student academic performance (Ford et al., 2012), while other authors suggest humorous distraction may actually worsen performance (Bieg et al., 2015). Among the issues contributing to these contradictory findings are two particularly important considerations: the mechanism by which humor may impact performance and the content of humor used in interventions. One mechanism by which humor could impact subsequent academic performance is working memory (Strick et al., 2009). The first study (n = 31) investigated if …

Application Of Image Processing And Convolutional Neural Networks For Flood Image Classification And Semantic Segmentation, Jaku Rabinder Rakshit Pally

All Theses

Floods are among the most destructive natural hazards that affect millions of people across the world leading to severe loss of life and damage to property, critical infrastructure, and the environment. Deep learning algorithms are exceptionally valuable tools for collecting and analyzing the catastrophic readiness and countless actionable flood data. Convolutional neural networks (CNNs) are one form of deep learning algorithms widely used in computer vision which can be used to study flood images and assign learnable weights and biases to various objects in the image. Here, we leveraged and discussed how connected vision systems can be used to embed …

Psl-An Expert System To Evaluate Degree Plans, Robert Swanson

Computer Science & Engineering Student Projects

This paper describes a general-purpose expert system to evaluate degree plans according to the individual preferences of a college student. This system implements a preference specification language (PSL) on top of this expert system to allow for the textual expression of certain requirements and preferences that the system uses for evaluation. The PSL evaluator produces a single value to describe how well it meets the student’s preferences, which a plan generation system could use to create a degree plan optimized according to the specification.

Video-Based Discussions About Literacy Pedagogy: Face-To-Face Versus Online Formats, Poonam Arya, Tanya Christ, Ming Ming Chiu

Reading Horizons: A Journal of Literacy and Language Arts

This study evaluated the similarities and differences in 50 preservice teachers’ (PTs’) literacy pedagogy learning outcomes when they engaged in videobased discussions that were both face-to-face (F2F) synchronous and online asynchronous. Across PTs’ response sheets, 396 idea units were collected and coded to identify their reports of learning about literacy pedagogy and application of this learning to their subsequent literacy instruction. Multivariate, multilevel, cross-classification logit regressions were used to compare outcomes across formats. Findings include that PTs reported learning similar total numbers of ideas across both video-based discussion formats but reported applying significantly more ideas from learning in the F2F …

Towards A More Comprehensive Understanding Of Wild Pig (Sus Scrofa) Impacts On Agricultural Producers: Insights From A Texas Case Study, Keith M. Carlisle, Nicole Didero, Sophie Mckee, Julie Elser, Stephanie A. Shwiff

United States Department of Agriculture Wildlife Services: Staff Publications

This research investigates the impacts of invasive wild pigs (Sus scrofa Linneaus) on agricultural producers in Texas, with the aim of identifying and describing all categories of wild pig impacts and quantifying the extent of producers’ over- or underestimation of their total wild pig-related costs in 2018, as compared to calculations based upon data subsequently provided by the producers about individual wild pig-related costs and losses. Based on interviews with 23 producers in 16 Texas counties, we identified more than 20 discrete categories of negative impacts and negligible positive impacts associated with wild pigs. Among them were categories that have …

Deep Learning Strategies For Pool Boiling Heat Flux Prediction Using Image Sequences, Connor Heo

Graduate Theses and Dissertations

The understanding of bubble dynamics during boiling is critical to the design of advanced heater surfaces to improve the boiling heat transfer. The stochastic bubble nucleation, growth, and coalescence processes have made it challenging to obtain mechanistic models that can predict boiling heat flux based on the bubble dynamics. Traditional boiling image analysis relies on the extraction of the dominant physical quantities from the images and is thus limited to the existing knowledge of these quantities. Recently, machine-learning-aided analysis has shown success in boiling crisis detection, heat flux prediction, real-time image analysis, etc., whereas most of the existing studies are …

Investigating Depth Estimation To Archaeological Magnetic Source Bodies, Jeremy G. Menzer

Graduate Theses and Dissertations

Magnetometry is the most widely applied archaeo-geophysical technique. Current practice standards employ the technique to map only in a two-dimensional plan view fashion, but in deep geologic studies depth estimators are routinely applied to magnetic datasets. These estimators provide three-dimensional information to magnetic source-bodies. There are many different depth estimators employed in geologic study that all require various degrees of processing complexity. This study investigates two mathematically simple techniques, half-width rules and multi-height methods. Half-width rules are likely the oldest depth estimators within the field while multi-height techniques are but a minor footnote in the literature. The applicability of these …

Mission Profile Effects On Automotive Drivetrain Electronics Reliability: Modeling And Mitigation, Bakhtiyar Mohammad Nafis

Graduate Theses and Dissertations

The reliability of electronic devices is dependent upon the conditions to which they are subject. Temperature variations coupled with differences in thermal expansion between bonded materials results in thermomechanical stresses to build up, which can instigate failure in the interconnects or other critical regions. With the move towards electrification in the automotive industry, there is the increasingly important consideration of powertrain electronics reliability, the pertinent conditions being governed by the drive cycle or mission profile of the vehicle. The mission profile determines the power dissipated by the electronic devices, which determines the peak and mean temperature, temperature swing and the …

Community Perceptions And Aesthetic Valuation Of Remediation Gardens, Rachel Bechtold

Graduate Theses and Dissertations

Creating successfully remediated landscapes may rely on both natural resources and human perception in landscape design. Urban areas present a dynamic environment wherein communities and nature compete for resources and space. This dissertation study was designed to better understand aesthetic perceptions of native plants capable of land remediation in midwestern communities. Findings from this study show the importance of aesthetic perceptions of stakeholders towards rehabilitated landscapes and the importance of organizing indicators for future design decisions in an interdisciplinary fashion. Recommendations include continued evaluation of aesthetic perceptions for plant species in urban landscapes and modeling a more consistent framework for …

Thermometry Via Diffusion In Ferrous Core-Shell Nanoparticles For Induction Heating Applications, Hayden Carlton

Graduate Theses and Dissertations

Induction heating causes the release of enormous amounts of heat from dispersed magnetic nanoparticles. While the rate of heat transfer can be easily quantified calorimetrically, measuring the temperature of the nanoparticles on the nanoscale presents experimental challenges. Fully characterizing the temperature and thermal output of these magnetic particles is necessary to gauge overall heating efficiency and to provide a more holistic understanding of heat transfer on the nanoscale. Herein, this dissertation seeks to develop a novel nanoparticle thermometry technique, which correlates diffusion behavior in core-shell nanoparticles to local temperature. Initial measurements suggested that heating silica capped ferrous nanoparticles (SCNPs) via …

Respiratory Compensated Robot For Liver Cancer Treatment: Design, Fabrication, And Benchtop Characterization, Mishek Jair Musa

Graduate Theses and Dissertations

Hepatocellular carcinoma (HCC) is one of the leading causes of cancer-related death in the world. Radiofrequency ablation (RFA) is an effective method for treating tumors less than 5 cm. However, manually placing the RFA needle at the site of the tumor is challenging due to the complicated respiratory induced motion of the liver. This paper presents the design, fabrication, and benchtop characterization of a patient mounted, respiratory compensated robotic needle insertion platform to perform percutaneous needle interventions. The robotic platform consists of a 4-DoF dual-stage cartesian platform used to control the pose of a 1-DoF needle insertion module. The active …

Formation Of Reactive Nitrogen Species During Dichloramine Decay And Their Impact On N Nitrosodimethylamine Formation Under Drinking Water Conditions, Huong Thu Pham

Graduate Theses and Dissertations

NDMA occurrence and formation pathways in drinking water systems are reviewed and NDMA yields are compared on the basis of disinfectant type, water chemistry, and precursor category. In chloramination, despite monochloramine being the predominant species between pH 7-9, evidence suggests that dichloramine is the primary species involved in NDMA formation. This is somewhat confounding as NDMA yields are maximal at pH 9, yet at pH 9 dichloramine decays faster than it forms and hence is present at trace levels; additionally, the proposed mechanism involves a spin-forbidden incorporation of dissolved oxygen as a triplet, which is presumably kinetically slow. This review …

Field Evaluation Of Struvite As A Phosphorus Source, Niyi Sunday Omidire

Graduate Theses and Dissertations

Phosphorus (P) is an element that is crucial in many biological processes in all forms of life and is not substitutable. Excess P in wastewaters leading to the degradation of receiving waters or eutrophication once released is a major environmental concern. Removal of excess P from wastewater as the mineral struvite (MgNH4PO4·6H2O) could be a promising solution to reduce P discharge into receiving waters and can potentially provide a valuable fertilizer-P source for agricultural production. The objectives of this project were to evaluate the effects of: 1) chemically precipitated struvite (CPST), compared to triple superphosphate (TSP) and an unamended control …

Clemson Commencement Program, December 2021, Clemson University

Clemson Commencement Programs

No abstract provided.

2021 Fall Engr333 Seminar Presentation, Anika Huizinga, John Stehouwer, William Terpstra, Duncan Waanders

ENGR 333

File for student presentation, given by students in the Fall 2021 class of ENGR333.

Message From The President / 12.1.21, Evan M. Glazer

Message from the President

No abstract provided.

Hadron, Eunice Kim '22, Lily Song '22

Hadron Magazine

• Pg 4 : Alternatives to Transplantation: Pig Organs and Mechanical Hearts
• Pg 6 : Human-Induced Climate Change Leads to Increased Wildfires in the United States
• Pg 7 : A.I. Generated Humor
• Pg 9 : From Professional Exclusive to DIY: Apple's Change in Stance on Repairs
• Pg 11 : The Ethics of Space Exploration/Colonization
• Pg 13 : NFTs: IP Rights or Scams? And at What Cost?
• Pg 15 : Crypto: Functionality and Future
• Pg 17 : Swimming Near the Edge: The Decline of the Vaquita
• Pg 20 : The Chemistry of Carbon Capture
• Pg 22 : Debunking Flatland: Space Filling Curves …

Bobby And Marv: The Asthma Attack, Vidhi Shah '23, Joanna Menendie '22

Human Diseases Graphic Novels

No abstract provided.

The Misadventures Of Dirty Dan, Ethan Brazelton '22, Akhil Vytla '22, Andrew Zhang '22, Piere Joyner '23

Human Diseases Graphic Novels

No abstract provided.

Chronic Bronchitis, Siddharth Tiwari '22, Edward Ning '23, Avery Hedican '23

Human Diseases Graphic Novels

No abstract provided.