Physical Sciences and Mathematics Commons^™

Simulating 129-Xe Hyperpolarization, Jacob F. Abiad

Undergraduate Student Research Internships Conference

Hyperpolarized 129-Xe is an important resource in many fields of medical physics and MRI research. The physics of the efficient production of hyperpolarized 129-Xe is therefore equally worth investigation. The main process of hyperpolarizing 129-Xe is Spin Exchange Optical Pumping (SEOP) and is dependent on several physical factors that can be difficult to constantly change in a lab setting. Physical modelling of 129-Xe hyperpolarization allows for the more efficient testing of hyperpolarization physics in a wide array of experimental setups to better determine the optimal values for hyperpolarization. This research project attempted to create a working model for 129-Xe hyperpolarization …

Automated Extraction Of Key Words And Abstract, Oluwadarasimi Temitope Ogunshote Mr.

Undergraduate Student Research Internships Conference

An application/program that automates the extraction of key words and abstracts from documents.

Searching For New Relations Among The Eilenberg-Zilber Maps, Owen T. Abma

Undergraduate Student Research Internships Conference

The goal of this project was to write a computer program that would aid in the search for relations among the Eilenberg-Zilber maps, which relate to simplicial objects in algebraic topology. This presentation outlines the process of writing this program, the challenges faced along the way, and the final results of the project.

Using An Analytical Approach Of The Kuramoto Model To Stimulate 3d Neural Activity Of The Stomach, Morteza Al Rabya

Undergraduate Student Research Internships Conference

No abstract provided.

Tsunami Early Warning, Yao Li

Undergraduate Student Research Internships Conference

This study uses both the traditional attributes, which are earthquake magnitude and location and pluses the tsunami height collected by detecting stations to estimate the height of a tsunami on the coast. The resulting accuracy indicates the tsunami height data collected by the off-shore stations could be used to estimate reliable and robust tsunami source models for tsunami warning purposes.

The Application Of Machine Learning To Help Identify Oceanic Anoxic Event 2 In Shales, Marc Mechem

Undergraduate Student Research Internships Conference

No abstract provided.

Contemporary Mathematical Approaches To Computability Theory, Luis Guilherme Mazzali De Almeida

Undergraduate Student Research Internships Conference

In this paper, I present an introduction to computability theory and adopt contemporary mathematical definitions of computable numbers and computable functions to prove important theorems in computability theory. I start by exploring the history of computability theory, as well as Turing Machines, undecidability, partial recursive functions, computable numbers, and computable real functions. I then prove important theorems in computability theory, such that the computable numbers form a field and that the computable real functions are continuous.

Profiling Mathematical Procedural And Problem-Solving Skills Of Undergraduate Students Following A New Mathematics Curriculum, Fiona Faulkner, Mark Prendergast, Cormac Breen, Michael Carr

Articles

In 2010 a mathematics curriculum was introduced in Irish second level schools entitled ‘Project Maths’ (PM). It aimed to refocus second level mathematics teaching and learning away from an over emphasis on procedural mathematics towards problem solving and real understanding [Department of Education and Skills (DES). (2010). Report of the Project Maths implementation support group. https://www.education.ie/en/Publications/Policy-Reports/Report-of-the-Project-Maths-Implementation-Group.pdf]. This paper aims to examine the performance of 1st year undergraduate students’ procedural and problem solving skills after the introduction of PM. A diagnostic test was developed to determine students’ skills in each area and findings demonstrated that students perform statistically significantly …

Genesis Of The Zebra Dolomites And Relation To Carbonate - Hosted Au - Ag - Zn ± Pb Deposits In The Maden Village (Ulukışla - Niğde), Central Taurides, South Turkey, Asuman Kahya, Ercan Kuşcu, Firdevs İrem Yeni̇ce

Bulletin of the Mineral Research and Exploration

Zebra dolomites and carbonate - hosted Au - Ag - Zn ± Pb deposits of Maden Village is located in the shelf type carbonate rocks of the Bolkar Mountains. The Zebra dolomite locally form and there is no evidence for relation between dolomitization and mineralization. Maden village ZD is characterized by parallel light and dark bands that have similar mineralogy and chemistry by petrographic and SEM + EDX investigation. The δ13C (V - PDB) composition of the Zebra dolomite from 2.59‰ to 2.72‰ and the δ18O (V - PDB) values of the Zebra dolomite from -11.39 ‰ to -14.88 ‰. …

Catalog Of Edge-On Galaxies Using The Pan-Starrs1 Survey Data, Dimitry I. Makarov, S. Savchenko, Alexander V. Mosenkov, Dmitry V. Bizyaev, Vladimir P. Reshetnikov, Alexandra V. Antipova, I. Tikhonenko, P. Usachev, S. Borisov, L. Makarova, Stefan Kautsch, A. Marchuk, E. Rub Edukov, M. Skryabina, P. Smirnova

Chemistry and Physics Faculty Articles

We have created a catalog of edge-on galaxies based on the publicly available DR2 data from the Pan-STARRS survey. The intensive use of an artificial neural network has significantly improved the quality of candidate selection. The catalog provides homogeneous information on astrometry, photometry, and non-parametric morphological statistics for 16551 edge-on galaxies. Our catalog is intended for studying the three-dimensional structure of galaxies with different morphologies and the scaling relations for disks and bulges.

Urban Forestry Management Plan: Canopy And Forest Structure Analysis Summary Report, Diamond Head Consulting

Sehome Hill Arboretum

The City of Bellingham is a community of more than 90,000 residents that stretches over 28 square miles, with an additional 8 square miles of Urban Growth Area (UGA). The City manages an expansive urban forest which includes several thousands of acres of forest and thousands of street trees. Bellingham’s urban forest is a valued asset within the community, as recognized in the City’s Comprehensive Plan vision and its Tree City USA status.

In this context, the City is creating an Urban Forestry Management Plan (UFMP) as a strategic plan to help maintain a healthy and desirable urban forest through …

New Insights Into The Drainage Of Inundated Ice-Wedge Polygons Using Fundamental Hydrologic Principles, Dylan R. Harp, Vitaly A. Zlotnik, Charles J. Abolt, Bob Busey3, Sofia T. Avendaño, Brent D. Newman, Adam L. Atchley, Elchin Jafarov, Cathy J. Wilson, Katrina E. Bennett

Department of Earth and Atmospheric Sciences: Faculty Publications

The pathways and timing of drainage from the inundated centers of ice-wedge polygons in a warming climate have important implications for carbon flushing, advective heat transport, and transitions from methane to carbon dioxide dominated emissions. Here, we expand on previous research using a recently developed analytical model of drainage from a low-centered polygon. Specifically, we perform (1) a calibration to field data identifying necessary model refinements and (2) a rigorous model sensitivity analysis that expands on previously published indications of polygon drainage characteristics. This research provides intuition on inundated polygon drainage by presenting the first in-depth analysis of drainage within …

Mgrre_Pureoilscouttickets_Mears, Carrie Aka Fields Aka Miers_1_21127000680000, Mgrre

Legacy Scout Tickets from Pure Oil Company

No abstract provided.

Effects Of Hunter Movement And Habitat Use On Observation Rate Of White-Tailed Deer (Odocoileus Virginianus), Alyssa N. Meier

Biology Theses, Dissertations, and Student Creative Activity

Hunting by humans is the primary tool for population control for many ungulate species across the United States, including white-tailed deer (Odocoileus virginianus). Previous research has focused primarily on the effects of hunting on prey behavior while neglecting the potential effects hunter behavior has on the probability of harvest success. I examined the influence of hunter movement and habitat use across the landscape on observation rate of white-tailed deer. During the 2008 and 2009 Oklahoma hunting seasons, we recorded GPS and observation data of 83 individual hunters over 487 total hunts. Hunters that moved non-linearly through forested cover at a …

Reducing The Manual Annotation Effort For Handwriting Recognition Using Active Transfer Learning, Eric Burdett

Theses and Dissertations

Handwriting recognition systems have achieved remarkable performance over the past several years with the advent of deep neural networks. For high-quality recognition, these models require large amounts of labeled training data, which can be difficult to obtain. Various methods to reduce this effort have been proposed in the realms of active and transfer learning, but not in combination. We propose a framework for fitting new handwriting recognition models that joins active and transfer learning into a unified framework. Empirical results show the superiority of our method compared to traditional active learning, transfer learning, or standard supervised training schemes.

Chamoli Disaster: Pronounced Changes In Water Quality And Flood Plains Using Sentinel Data, Sansar Raj Meena, Akshansa Chauhan, Kushanav Bhuyan, Ramesh P. Singh

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

The Himalayan rivers are vulnerable to devastating flooding caused by landslides and outbreak of glacial lakes. On 7 February 2021, a deadly disaster occurred near the Rishi Ganga Hydropower Plant in the Rishi Ganga River, killing more than 100 people. During the event, a large volume of debris and broken glacial fragments flooded the Rishi Ganga River and washed away the Rishi Ganga Hydropower plant ongoing project. This study presents the impact of the Chamoli disaster on the water quality of Rishi Ganga River in upstream near Tapovan and Ganga River in downstream near Haridwar through remote sensing data. Five …

Software For The Frontiers Of Quantum Chemistry: An Overview Of Developments In The Q-Chem 5 Package, Evgeny Epifanovsky, Andrew T. B. Gilbert, Xintian Feng, Joonho Lee, Yuezhi Mao, Shervin Fatehi

Chemistry Faculty Publications and Presentations

This article summarizes technical advances contained in the fifth major release of the Q-Chem quantum chemistry program package, covering developments since 2015. A comprehensive library of exchange–correlation functionals, along with a suite of correlated many-body methods, continues to be a hallmark of the Q-Chem software. The many-body methods include novel variants of both coupled-cluster and configuration-interaction approaches along with methods based on the algebraic diagrammatic construction and variational reduced density-matrix methods. Methods highlighted in Q-Chem 5 include a suite of tools for modeling core-level spectroscopy, methods for describing metastable resonances, methods for computing vibronic spectra, the nuclear–electronic orbital method, and …

Silver Bow Creek/Butte Area Npl Site Butte Priority Soils Operable Unit, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Butte Priority Soils Operable Unit (Bpsou) Unreclaimed Sites - Draft Final Field Sampling Plan (Fsp) #5: Ur-12, Ur-13, Ur-33, And Ur-38., Mike Mcanulty

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

The Growth Of Starry Stonewort (Nitellopsis Obtusa), An Aquatic Invasive Species, In Two Michigan Lakes, And Its Suitable Habitats In The Midwest And Northeast United States, Emily Neuman

Masters Theses

The growth of starry stonewort (Nitellopsis obtusa), an aquatic invasive species, in two Michigan Lakes, and its suitable habitats in the Midwest and Northeast United States Aquatic invasive species are a major threat to freshwater ecosystems, but gaps remain in our knowledge on how these species invade, grow, and thrive. This thesis aims to understand how an invasive macroalga, Nitellopsis obtusa (starry stonewort), grows within the littoral zone of two drowned river mouth lakes and suitable habitat preferences across 17 Midwest and northeast U.S.A. states to aid in aquatic invasive species management. In chapter II of this thesis, …

Allelopathy Of Panicum Maximum Jacq. Cultivars On Tree And Shrub Forage Legumes: Greenhouse Estimate, A. R. P. Almeida, T. J. D. Rodrigues

IGC Proceedings (1993-2023)

The available information about allelopathic effects of the genus Panicum on tropical forage legumes is scarce and inconclusive. Based on this fact this research was carried out, under greenhouse conditions to evaluate potential allelopathic effects of aqueous extracts (0,10 and 20%) of three cultivars of Panicum maximum Jacq. cv. Mombaça, cv. Aruana and cv. Tanzânia-1 on three forage legumes, Leucaena leucocephala (Lam.) de Wit. (leucaena), Cajanus cajan (L.) Millsp. cv. Kaki (pigeon pea) and Sesbania sesban (L.) Merr. (sesbania) seeking for mixed grasses and legumes pastures. The following characteristics were evaluated: emergence porcentage, speed of germination index, root density, dry …

Correlation Between Yield Of Forage Legumes In Grass Mixtures And Accumulation Of Soil Mineral Nitrogen In Sweden, Magnus A. Halling, David Scholefield

IGC Proceedings (1993-2023)

Soil mineral N and DM yield of five forage legume species were investigated in field experiments at two sites in Sweden, established 1997. The species studied were: red clover (Trifolium pratense L.), lucerne (Medicago sativa L.), white clover (Trifolium repens L.), galega (Galega orientalis Lam.) and lotus (Lotus corniculatus L.), all grown in grass-legume mixed swards. No nitrogen was applied to the legumes. Results from two years of ley (1998 and 1999) are presented. Correlation was found between accumulated mineral N in the soil in the autumn and the total seasonal DM yield of the …

Tillage Systems In The Establishment Of Pastures In Argentinian Subhumid Area, H. Pagliaricci, C. Saroff, A. Ohanian, T. Pereyra

IGC Proceedings (1993-2023)

The effect of three tillage systems on the number of plants produced and forage production of a pasture the first year of establishment was assessed in this experiment. The components of the pasture were alfalfa (Medicago sativa L.), tall fescue (Festuca arundinacea Shreb), orchard grass (Dactilys glomerata L), and prairie grass (Bromus unioloides). Treatments were three tillage systems: conventional tillage (CT), reduced tillage (RT), and direct sowing (DS). Sowing was performed with (NI) and without fertilizers (N0) in each treatment. A split-plot experimental design with two repetitions was used, with tillage being the main factor …

Categorical Aspects Of Graphs, Jacob D. Ender

Undergraduate Student Research Internships Conference

In this article, we introduce a categorical characterization of directed and undirected graphs, and explore subcategories of reflexive and simple graphs. We show that there are a number of adjunctions between such subcategories, exploring varying combinations of graph types.

Spectral Graph Theory And Research, Nathan H. Kershaw, Lewis Glabush

Undergraduate Student Research Internships Conference

Our topic of study was Spectral Graph Theory. We studied the algebraic methods used to study the properties of graphs (networks) and became familiar with the applications of network analysis. We spent a significant amount of time studying the way virus’s spread on networks, with particular applications to Covid-19. We also investigated the relationship between graph spectra and structural properties.

A Transformer-Based Classification System For Volcanic Seismic Signals, Cristian Bravo Roman, Cindy Mora Stock, Alexander James Hemming

Undergraduate Student Research Internships Conference

Volcanic seismic signals are a key element in volcano monitoring to assess the state of unrest and a possible eruption style and timing. Different sources such as brittle fracture (volcano-tectonic - VT) or fluid movement (long period - LP) generate signals with distinct characteristics in frequency content and shape, but site effects such as attenuation or background noise make their determination difficult to the untrained eye. In cases of unrest or an eminent eruption, the amount of data would require a fast and reliable source of pre-classification to classify and catalogue to aid in the job usually done by a …

Monitoring At-Home Care Patients Through A Scalar Polar Plot Visualization Of Motion Sensor Data, Michael Mcgavin

Undergraduate Student Research Internships Conference

In Canada, approximately 18 percent (6.6 million) of the total population are age 65 or older, and 88 percent of people over age 65 want to stay in their residence for as long as possible. This older demographic is a group that is dependent on proactive and preventative healthcare. Using motion sensor data collected from a local company providing home-care services to this demographic, a data visualization was constructed to assist users in observing patient behavior and improving their quality of life while maintaining their independence. However, since the collected data is time-based, it results in a dataset that is …

Lithium Dubbed Cspbbr3 Perovskite Nanocrystals, Siena Idoine

Undergraduate Student Research Internships Conference

No abstract provided.

Detecting Graphene Nanosheets On Leaves​ Of Ceratophyllum Demersum ​, Teresa A. Buragina

Undergraduate Student Research Internships Conference

Since its discovery, applications of graphene, a material that is a single layer of carbon atoms, have been useful in many different fields. In this project, we aim to image graphene flakes, formed from graphene-RNA nanocomposites, on the surface of aquatic plant leaves. Graphene-RNA 6 solutions were vacuum filtrated onto leaves of Ceratophyllum Demersum, which were then imaged at different heights using confocal microscopy, producing 3D images of graphene flakes.

Structural Tuning Of Two-Dimensional Perovskites At High Pressure, Lauren A. Diloreto

Undergraduate Student Research Internships Conference

Two-Dimensional Perovskites are semiconductors and are of interest to researchers as the class of materials show great promise for innovating improvements to solar cells. The purpose of this experiment is to determine if a metastable change will occur in the materials: DPDAPbI4 and CMA2PbI4 upon compression to approximately 9 GPa. The experiment was conducted using diamond anvil cells (DAC) to apply static pressure to the materials. The pressure of the sample was then measured using ruby fluorescence. Then, FTIR or Raman spectroscopy acquisitions were obtained at various pressures. Subsequently, the data suggests that a metastable change did not occur. Additionally, …