Physical Sciences and Mathematics Commons^™

Modeling Reverberant Chambers Used In Time-Reversal Cavities Using Time-Frequency Methods, Jordan Savoie

Mathematics Senior Capstone Papers

The signal processing technique of time-reversal is used for various purposes in electro-magnetic interference testing, radar, communication, sonar, and medicine. This paper models the impulse response of a reverberant chamber such as might be used for a time-reversal cavity (TRC) using time-frequency methods. Reverberant chambers have chaotic delaying phase responses that cause the majority of the distortion seen in their impulse response. Time-reversal cancels this, creating a focused signal from a disperse one. Most research modeling the behavior of TRCs is more concerned with their physics, so there is relatively little commented on the form of their signals. Data of …

Does The Three Point Shot Affect Winning Percentage, Marcamus Winn

Mathematics Senior Capstone Papers

The three-point shot, introduced in the late 1970s, is a shot that occurs typically 24 feet away from the basket at the professional level. Strategically the game of basketball was originally based on two-point field goals. Recently, there has been a noticeable trend in the popularity of the three-point shot amongst professional teams. Nowadays, three point shot attempts account for more than a third of average NBA shot selection. Statistical analysis is becoming integral to athletics. Statistics has become a critical component to the development of not only on court basketball strategies, but also team structure as well. There are …

Our Possibilities With Medicinal Plants, Brianne Mack-Bingham

Goal 3: Good Health and Well-Being

No abstract provided.

The Value Of Community Gardens In Georgetown County, Aaron Osborn

Goal 3: Good Health and Well-Being

No abstract provided.

The Role Of Aquifer Storage And Recovery (Asr) In Water Resource Management, Katelyn Zimmerman

Goal 6: Clean Water and Sanitation

No abstract provided.

The Coastal Monitor: Vol. 10 No. 1, John Tanacredi Ph.D.

The Coastal Monitor

New Year’s Day has always been, for me, a time to reflect and project into the near future. Nature’s influence on us all certainly tops my listing with several environmental concerns. For example, the frequency and intensity of hurricanes to Long Island. A decade has passed since Superstorm Sandy re-opened the “Old Inlet” on Long Island which now has mostly naturally closed. So, the new year immediately prompts me to assess the previous year’s Hurricane Ian, a Category 4 system, with winds exceeding 150 mph, which had considerable impact in Florida, and then proceeded north resulting in over 2 inches …

Changing Nfl Playoff Overtime Rules To Create Equal Opportunities To Win A Game, Matthew Silvia

Honors Projects in Mathematics

The NFL has attempted to create fair overtime rules over the course of the past decade; however, this study is interested in determining what playoff overtime rule (or rules) could the NFL implement to result in outcomes where both teams have a relatively equal chance of winning a game. This study aims to find which overtime rules work best at minimizing the differences between teams who possess the ball first versus teams that kick the ball off to start an overtime period. By collecting various NFL statistics from ESPN.com and FantasyOutsiders.com, this study hopes to run multiple simulations of different …

The Effects Of Cloth & Surgical Masks On The Environment, Dana Jurgielewicz

Honors Projects in Science and Technology

The objective of this study is to assess the environmental effects of different types of face masks (surgical and cloth). A comparison between different mask components is analyzed and an environmental impact is produced through the OpenLCA Software. The research question for this study is: What are the effects of different types of face masks on the environment? The expected result was that surgical masks would be worse for the environment because of the high consumption usage. The results of this study suggest that cloth masks have a worse environmental impact because of their level of usage.

Effect Of Varied Macronutrient Ratios On Honey Bee Tolerance To Iapv Infection, Caitlin Lennon-Puthoff, Alex Payne, Adam Dolezal

PRECS student projects

Honey bees are killed by Israeli acute paralysis virus (IAPV). Because this virus has no cure, it is important to lessen its impact on bees through proper nutrition. This project explores the effects of differing protein to lipid (P:L) ratios in pollen on honey bee susceptibility to this virus.

Over three trials, bees in cages were incubated for 3 days to resemble hive conditions. Two doses of IAPV (10^-3 & 10^-2) and a negative control were used, along with five P:L ratios (1.5, 2.5, 11.5, 16.5, & 21.5:1) and a sucrose-only diet. These treatment groups were combined …

Graduate, 2nd Place: Assessing The Knowledge, Attitude, And Everyday Life Practices Adopted Among Eastern Illinois University Students Towards Sustainability, Joel Holison

2023 Awards for Excellence in Student Research and Creative Activity - Documents

The concept of sustainable development gained attention and came into focus with the publication of the Brundtland Report (Brundtland, 1987). later the Education for Sustainability (EfS) initiative was presented in 1997 through the “Thessaloniki Declaration” as a carrier of the common and single message (Knapp, 2000). Sustainable development is the way a country pursues its economic development that does not jeopardize the opportunity for future generations to achieve their development (Brundtland, 1987). Deforestation, land destruction, soil degradation, air and water pollution, and other types of environmental deterioration are paid in the name of economic progress. This detriment may outweigh the …

Analysis Of Hawk Mountain Wind Speed To Raptor Count Trends From 1976 Through 2021, Dale E. Parson

Computer Science and Information Technology Faculty

This analysis of summer 2023 is a sequel to the summer 2022 Analysis of Hawk Mountain Sanctuary Observation Data from 1976 through 2021, also available as a web page through end of 2024 here. A presentation of that and subsequent analysis presented at Kutztown University in November 2022 and to Hawk Mountain researchers in January 2023 is available as PDF slides here and also on the web through 2024 here. This work was funded by a Kutztown University Research Grant for spring 2022 through summer 2023. Analytical use of these data proceeded through a subset of projects in three courses …

Wormholes, Superfast Computations, And Selivanov's Theorem, Olga Kosheleva, Vladik Kreinovich

Departmental Technical Reports (CS)

While modern computers are fast, there are still many practical problems that require even faster computers. It turns out that on the fundamental level, one of the main factors limiting computation speed is the fact that, according to modern physics, the speed of all processes is limited by the speed of light. Good news is that while the corresponding limitation is very severe in Euclidean geometry, it can be more relaxed in (at least some) non-Euclidean spaces, and, according to modern physics, the physical space is not Euclidean. The differences from Euclidean character are especially large on micro-level, where quantum …

Discussing The History Of Ideas In A Data Science Seminar, Lubomir Stanchev

Computer Science and Software Engineering

As one part of an NSF-sponsored Data Science Fellowship at Cal Poly, San Luis Obispo, a group of faculty offered a unique one- unit quarter-long seminar on the history of ideas behind the core principles of Data Science. We present an overview of this seminar, its learning objectives, and outcomes and lessons learned.

Sustainability Club, Brianna Bernhardt, Marissa Lindemann

Honors Program: Expanded Learning Clubs

An environmental and agricultural-based club focusing on sustainability. Results in a cleaner school environment, knowledge about various sustainable practices, art projects, and an appreciation of nature.

Stem Club, Rohan Tatineni, Kevin Prososki

Honors Program: Expanded Learning Clubs

The goal of STEM club is to teach the students various basic scientific principles and relate them to experiments and the real world. In addition, the scientific method will be taught and be a main focus of the club along with the engineering design process.

What You Don't See: The Impact Of Hidden Game Mechanics On Players, Jan Virsunen

ART 108: Introduction to Games Studies

Since the rise of technology in the early nineteen sixties the art of gaming became an increasingly popular form of entertainment for many people throughout the years. As time progressed so did the advancements in technology which allowed for video games to become more immersive, captivating, and complex. Due to these advancements in tech, it generated a wide variety of ways for developers to increase game complexities. However, as the complexity of video games has increased, so too has the number of hidden game mechanics. These game mechanics are seen as the underlying systems and rules that govern how the …

Santa Clara Magazine, Volume 64 Number 1 Spring 2023 [Print Issue 62:2], Santa Clara University

Santa Clara Magazine

16 - A BRIDGE TO TOMORROW How one university can change the world when it widens the path to opportunity. SCU Staff

22 - THE INTERNET'S LAST TRUE BELIEVER For more than two decades, Law Professor Eric Goldman has been one of the most influential legal voices fighting for the ’net. Chris O’Brien

26 - OPPORTUNITY ON SET Meet five Broncos who scored the opportunity of a lifetime—production assistants on an indie film crew—via Professor Nico Opper. Nicole Calande

28 - SPIRITUAL SOUP With a little bit of this, a dash of that, and a sprinkling of something else, humans …

Ce-Qual-W2 Performance Assessment Modeling 1979 Grh Flume Study, Logan Negherbon

Civil and Environmental Engineering Master's Project Reports

In an early review of numerical reservoir hydrodynamic models, the US Army Corps of Engineers developed a physical model at the US Army Waterways Experiment Station to assess the performance of modeling cold water underflow with numerous 2-dimensional and 3-dimensional numerical hydrodynamic models. Within this effort, the precursor for CE-QUAL-W2, the Laterally Averaged Reservoir Model, was defined and applied with limited success in representing the vertical velocity profile and outflow temperatures series collected from the physical model in the General Reservoir Hydrodynamics flume. CE-QUAL-W2 has since been modified from this early form in numerous ways including incorporation of higher order …

Evaluating The Enzymatic Activity Of Transformed X. Cucurbitae, Emily Beger, Iris Lee, Sarah Hind

PRECS student projects

Introduction

• The United States’ pumpkin industry exceeds one billion dollars [1], with Illinois contributing to over 90% of processing pumpkin production.
• Pumpkin growers face a rising concern due to the increasing occurrence of Xanthomonas cucurbitae , the pathogen that causes bacterial spot disease in cucurbits, including pumpkins.
• X. cucurbitae infection leads to the appearance of small, sunken, beige spots on cucurbit fruits and leaves.
• Over time, the bacterium can compromise fruit integrity by breaking down the epidermis and cuticle. • Bacterial spot disease also creates opportunities for other bacteria and fungi to infiltrate the affected fruits, leading to fruit rot …

Synthesis And Characterization Of Terbium(Iii) Complexes: Can We Manipulate The Emission Signature?, Ryan Gagnon

[Archive] Belmont University Research Symposium (BURS)

Successful Lewis acid/base reactions of terbium(III) nitrate with 2,2’-bipyrdine (22’bpy), 1,10-phenanthroline (phen), and 2,6-pyridine dimethanol (pydm) have yielded the products: Tb(22’bpy)₂(NO₃)₃, Tb(phen)₂(NO₃)_3, and [Tb(pydm)₃](NO₃)₃, respectively. In accord with the well-known antenna-effect, the absorption spectrum of each complex is similar to the spectrum of the free ligand, while the emission spectrum of the complex is identical for the free terbium(III) ion. In contrast, the substitution of a ligand containing a third-row nonmetal strategically placed near the terbium may force interaction between the 3p nonmetal …

2023- The Twenty-Seventh Annual Symposium Of Student Scholars

Symposium of Student Scholars Program Books

The full program book from the Twenty-seventh Annual Symposium of Student Scholars, held on April 18-21, 2023. Includes abstracts from the presentations and posters.

Crystal Structure Of Dihydrofolate Reductase From The Filarial Nematode W. Bancrofti In Complex With Nadph And Folate, Keith Lange, Kathleen M. Frey, Tyler Eck, Cheryl A. Janson, Ueli Gubler, Nina M. Goodey

Department of Chemistry and Biochemistry Faculty Scholarship and Creative Works

Lymphatic filariasis is a debilitating illness with an estimated 50 million cases as of 2018. The majority of cases are caused by the parasitic worm W. bancrofti and additional cases by the worms B. malayi and B. timori. Dihydrofolate reductase (DHFR) is an established target in the treatment of cancer, bacterial, and protozoal infections and may be a potential target for drugs targeting parasitic worm infections, including filariasis. Recent studies have shown that known antifolate compounds, including methotrexate, inhibit the activity of W. bancrofti DHFR (WbDHFR). However, the absence of structural information for filarial DHFRs has limited the study of …

Analyzing Syntactic Constructs Of Java Programs With Machine Learning, Francisco Ortin, Guillermo Facundo, Miguel Garcia

Department of Computer Science Publications

The massive number of open-source projects in public repositories has notably increased in the last years. Such repositories represent valuable information to be mined for different purposes, such as documenting recurrent syntactic constructs, analyzing the particular constructs used by experts and beginners, using them to teach programming and to detect bad programming practices, and building programming tools such as decompilers, Integrated Development Environments or Intelligent Tutoring Systems. An inherent problem of source code is that its syntactic information is represented with tree structures, while traditional machine learning algorithms use -dimensional datasets. Therefore, we present a feature engineering process to translate …

The Effects Of Imposed Drought And Nutrient Availability On Soil Microbial Biomass And Enzyme Activity In A Long-Term Restored Grassland, Ashley A. Wojciechowski

2023 Midwest Ecology & Evolution Conference

Restoring agricultural lands back to grassland aims to reverse many negative impacts of agriculture on the ecosystem including nutrient export from soil and depletion of soil carbon. Planting prairie on agricultural soil promotes recovery of soil microbial biomass and their enzymes, which create demand for nitrogen by microbes to reduce the rate of nutrient cycling and loss. A complicating factor in the development of a restored grassland the influence of several anthropogenic global changes including increasing frequency of drought and nutrient enrichment. Drought has been found to negatively affect microbial biomass, soil enzyme activity and nutrient cycling. Nutrient (often N) …

The Effects Of False Springs And Late Freezing Events On Germination Success Of Prairie Plants, Sawyer J. Wittman

2023 Midwest Ecology & Evolution Conference

Prairie ecosystems are some of the most fragmented habitats across the Midwestern USA and are susceptible to the effects of climate change. False springs occur when temperatures rise unseasonably early, followed by low temperatures returning. A late freeze is when temperatures drop drastically in early spring, potentially damaging the plants that begin to grow. This research experimentally tests how winter climate change affects the germination rates of 24 different prairie plant species (12 in Poaceae, 4 Asteraceae, 4 in Fabaceae, and 4 in Lamiaceae), where half bloom in the spring and half bloom in the summer. Seeds are cold stratified …

Preliminary Report On Fossil Marine Vertebrates From The Upper Cretaceous Hartland Shale From Republic County, Kansas, Brianna E. Ortiz

2023 Midwest Ecology & Evolution Conference

The Hartland Shale of the Upper Cretaceous Greenhorn Limestone is a rock unit broadly distributed in north-central Kansas, that formed in the Western Interior Seaway, a Late Cretaceous epicontinental seaway in North America approximately 93 million years ago. The vertebrate fossil record of the Hartland Shale of Kansas is poorly known, where previous records were confined to a tooth of the extinct lamniform shark Cretoxyrhina mantelli and skeletal remains of a plesiosaur besides taxonomically uninformative bones and teeth of bony fishes. Here, we describe additional teeth of C. mantelli as well as the discovery of multiple teeth belonging to a …

Rapid Assesment Of Aquatic Insect Diversity And Abundance Used To Evaluate The Quality Of Stream Restoration, Kaleb Stephen Kindoll

2023 Midwest Ecology & Evolution Conference

Stream and wetland restoration activities seek to improve the function of aquatic ecosystems. Measurement of the diversity and abundance of aquatic insects are commonly used to evaluate the success of restoration efforts, but these measurements are often very time consuming. In this study, we attempt to construct an efficient method that can be used to rapidly assess the diversity and abundance of aquatic insects as a measure of the quality of stream restoration. We suspended uniform sized pieces of cardboard paper coated with adhesive to trap insects in three different environments: one restored and two unrestored streams with similar characteristics. …

Evaluating Habitat Suitability In Lake Superior And Michigan Streams For The Freshwater Diatom, Didymosphenia Geminata, Nuphar Rimer

2023 Midwest Ecology & Evolution Conference

Didymosphenia geminata (didymo or rock snot) is a benthic, freshwater diatom that is native to North America and Europe. Although it is native, it is displaying invasive qualities through seasonal stalk production. Stalks accumulate into large, unattractive mats that have the potential to alter benthic aquatic communities. The ecology of didymo is puzzling; it has been steadily expanding outside of its native range, and seasonal mat production can be unpredictable. Michigan is well known for outdoor recreation, attracting sportsmen from around the world to fish. Fishing is an integral part of Michigan’s tourism industry, but high foot traffic increases the …

Monitoring Personal Exposure To Air Quality Gradients While Biking On An Elevated Urban Trail, Gavin Salas

2023 Midwest Ecology & Evolution Conference

Air pollution is a major global health concern, specifically as it relates to the human exposome. The EPA criteria pollutants, including particulate matter (PM), carbon monoxide (CO), carbon dioxide (CO2), and NOx can have severe impacts on respiratory and cardiovascular health, particularly in populations with chronic illnesses such as asthma, those facing economic hardships and individuals who frequently spend time outdoors, such as bicyclists and runners. To understand the impact of air pollution on human health, it is essential to assess personal exposure. This study aimed to investigate personal exposure to air pollution levels while biking along a former elevated …

Phys 213

Department of Physics and Astronomy: Syllabi

No abstract provided.