Physical Sciences and Mathematics Commons^™

Studies Of Charge Collection In Diamond-Based Particle Detectors At The Lhc, Jared Smith

EURēCA: Exhibition of Undergraduate Research and Creative Achievement

See file

Bayes, Brains & Babies: Electrophysiology And Mathematics Of Infant Holistic Processing And Selective Inhibition, Matthew Singh

EURēCA: Exhibition of Undergraduate Research and Creative Achievement

No abstract provided.

What Color Are Purple Butterfly Wings: A Study Of Optical Structures, Victoria Halevy, Tyler Sterr, Bruno Deharak, Faculty Advisor

John Wesley Powell Student Research Conference

At first glance, morpho butterfly wings appear to be a purple color. However, when they are held up to the light, they seem transparent. This is because morpho butterfly wings get their brilliant colors from the physical structure of the scales on the surface of the wing. This structure is a series of ridges spaced a few hundred nanometers apart. When light shines on these ridges, interference effects cause iridescence. We measured the spectrum of light reflected from a wing as a function of reflected angle and modeled these results mathematically. We also looked at morpho butterfly wings using a …

Elliptic Curves And Cryptography, Linh Nguyen, Andrew Shallue, Faculty Advisor

John Wesley Powell Student Research Conference

No abstract provided.

Optical Cloaking By Aberation Correction, Joseph Richards, Julia Savich, Gabriel C. Spalding, Faculty Advisor

John Wesley Powell Student Research Conference

Light incident on a material is scattered and then continues its propagation in seemingly random directions. If one can force light to pass through a material and not scatter, however, then one could “see” through the material. This scattering of light can be described as aberration within the light. A technique used for “Aberration Correction” is adding phase-shifts to regions of light allowing for all wave fronts of light to interfere in a constructive manner. This is accomplished in the use of a Spatial Light Modulator (SLM). The SLM, an array of linearly aligned crystals, allow for added phase shifts …

In Pursuit Of The Ringel-Kotzig Conjecture: Uniform K-Distant Trees Are Graceful, Kimberly Wenger, Daniel Roberts, Faculty Advisor

John Wesley Powell Student Research Conference

Graph labeling has been an active area of research since 1967, when Rosa introduced the concept. Arguably, the biggest open conjecture in the field is referred to as the Ringel-Kotzig conjecture, which states that all trees admit a graceful labeling. In this talk, we will give a bit of background on the problem, as well as present our own results. Namely, that a certain infinite class of trees (called uniform k-distant trees) admits a graceful labeling.

A Short Journey Through The Riemann Integral, Jesse Keyton

2014-2016 Undergraduate

An introductory-level theory of integration was studied, focusing primarily on the well-known Riemann integral and ending with the Lebesgue integral. An examination of the Riemann integral's basic properties and necessary conditions shows that this integral is not very strong. This conclusion leads to Lebesgue's necessary and sufficient condition for Riemann integrability, perhaps where the Riemann integral ends and the Lebesgue integral begins: a function defined on a closed integral [a, b] is Riemann integrable if and only if the function is discontinuous on a set of measure zero. The proof of this uses that the infinite union …

The Development And Characterization Of Dual Electrodes For Use With Scanning Electrochemical Microscopy, Colleen Leonard, Melinda Baur, Faculty Advisor

John Wesley Powell Student Research Conference

Scanning Electrochemical Microscopy (SECM) utilizes electrode probes that can be positioned just abutting cells and can detect the presence of small quantities of chemicals known as neurotransmitters. In order to detect neurotransmitter release from PC12 cells, used as model neurons, the electrode must be positioned very close to the cell surface to detect the change in current that accompanies the oxidation/reduction of the neurotransmitters released. The peaks in current were analyzed in order to detect differences in release mechanisms, such as slow or fast-release. Furthermore, dual electrodes were made and characterized in order to monitor two different locations on a …

The Prevalence Of Lead Fragments From Shotgun Slugs/Muzzleoader Bullets In Ground Venision Meant For Human Consumption, Genevieve Alexander, Given Harper, Faculty Advisor

John Wesley Powell Student Research Conference

Recent studies have shown that lead shotgun slugs and muzzleloader bullets often fragment inside game animals. The majority of ammunition types used in firearms that are permitted by the State of Illinois for hunting white-tailed deer (Odocoileus virginianus) contain lead, which is toxic to both humans and animals that scavenge deer carcasses. Although many studies have examined the impact of lead bullet fragmentation in game animals from high powered rifles, few studies have documented the presence of lead fragments from shotgun slugs and muzzleloader bullets in ground venison meant for human consumption in Illinois. In this study, ground …

Decomposing Complete Graphs Into A Graph Pair Of Order 6, Yizhe Gao, Daniel Roberts, Faculty Advisor

John Wesley Powell Student Research Conference

Firstly, a graph G consists of a vertex set V (G), and an edge set E (G) of endpoints which relate two vertices with each edge. Also, a decomposition of a graph is a list of subgraphs such that each edge appears in exactly one subgraph in the list. In the field of graph theory, graph decomposition is an active field of research. A graph pair is a pair of graphs on the same vertex set whose union is the complete graph. Abueida and Daven studied decompositions of complete graphs into graph-pairs of order four and five. We are extending …

Arithmagons, Jose Franco

Mathematics Colloquium Series

Arithmagons are polygonal graphs whose vertices and edges are numbered by natural numbers in such a way that the product of the labels of two adjacent vertices equals the label on the edge that connects them. During the talk, Franco will briefly explore the conditions for solvability. The remainder of the talk will focus on counting the number of arithmagons that can be constructed so that the multiplication of all the values on the edges equals a fixed natural number.

Fan-Linear Maps And Fan Algebras, John Hull

Georgia State Undergraduate Research Conference

No abstract provided.

Synthesis Of Thiophene Analogs As Potential Antagonists Of Chemokine Receptor Type 4 (Cxcr4), Francisco Javier Garcia Jr.

Georgia State Undergraduate Research Conference

No abstract provided.

Design And Synthesis Of Carbocyanine Based Photosensitizers For Use In Dye-Sensitized Solar Cells, Tyler Dost

Georgia State Undergraduate Research Conference

No abstract provided.

Synthesis Of Trans-Cyclooctene For Dna Modification, Vayou Chittavong, Ke Wang, Chaofeng Dai, Weixuan Chen, Yueqin Zheng, Binghe Wang

Georgia State Undergraduate Research Conference

No abstract provided.

Dynamics Of Traveling Waves In Neural Networks In Presence Of Period Inhomogeneities, Rosahn Bhattarai

Georgia State Undergraduate Research Conference

No abstract provided.

Development Of A Safe And Efficient Near-Infrared Diagnostic Method For Alzheimer's Disease, Joseph Tawney

Georgia State Undergraduate Research Conference

No abstract provided.

Statistical Analysis Of Enhanced Ctl Killing Activity Against Irradiated Tumor Cells, Catannian Sanogo

Georgia State Undergraduate Research Conference

No abstract provided.

13th Annual Undergraduate Student Symposium, Farquhar Honors College

Undergraduate Student Symposium

The Undergraduate Student Symposium, sponsored by the Farquhar College of Arts and Sciences, presents student projects through presentations, papers, and poster displays. The event serves as a “showcase” demonstrating the outstanding scholarship of undergraduate students at NSU. The Symposium is open to undergraduate students from all disciplines. Projects cover areas of student scholarship ranging from the experimental and the applied to the computational, theoretical, artistic, and literary. They are taken from class assignments as well as from independent projects. The projects do not have to be complete; presentations can represent any stage in the concept’s evolution, from proposal and literature …

Mapping The Lower Bear River Cross Section, Megan Gordon, Jordan Floyd, Ayman Alafifi, David E. Rosenberg

Spring Runoff Conference

The lower Bear River plays a large agricultural and socioeconomic role within the Cache Valley. Studying changes in the River’s flow, depth, surrounding vegetation, and river cross section is absolutely imperative in that these changes can have large impacts on the valley’s agricultural and economic well-being. The purpose of this cross section data study is to map the geometry of different portions of the Lower Bear River to be able to compare the data from year to year to understand how the changes in the river cross section correlate with seasonal variation of river flow. We obtained data through setting …

Stage-Flow Relationship And Seasonal Fluctuations In Flow Of The Lower Bear River, Taylor Dudunake, Isaac Robertson, Ayman Alafifi, David E. Rosenberg

Spring Runoff Conference

The Bear River Fellows Program within the Department of Civil and Environmental Engineering at Utah State University was funded through the National Science Foundation. We extended the data analysis of the previous year’s research at three different sites within the Lower Bear River Basin between the Idaho-Utah state line and Cutler Reservoir on two separate occasions, August 13-16, 2013 and November 16, 2013. Our work included collecting river stage, flow, and water pressure measurements using standard surveying equipment, an Acoustic Doppler Current Profiler (ADCP), and pressure transducers. Part of the objective of each trip was to fill out the relationship …

Mapping Inflows, Diversions, And Vegetation Along The Lower Bear River Basin, Amberlee Burrows, Leah Langdon, Ayman Alafifi, David E. Rosenberg

Spring Runoff Conference

The Department of Civil and Environmental Engineering at Utah State University (USU), through a National Science Foundation project, has partnered with the Outdoor Recreation, and Parks and Recreation programs at USU to offer the Bear River Fellows Program - a unique river-based experiential learning opportunity for 6 freshmen Fellows to receive first-hand experience in collecting, synthesizing and analyzing environmental and ecological data. Part of these objectives included observing plant composition over time as well as measuring inflows to and diversions from the river. We collected field measurements such as flow measurements and channel cross section topology and examined environmental and …

'An Explosive Of Quite Unimaginable Force': Did Werner Heisenberg Obstruct German Atomic Bomb Research?, Aaron G. Noll

Graduate History Conference, UMass Boston

Why was Nazi Germany unable to acquire an atomic bomb during World War II? An answer to this question necessarily involves an analysis of the wartime conduct of Werner Heisenberg. As the undisputed leader of German nuclear research, Heisenberg was integral to the successful production of a bomb. Heisenberg claimed after the war that the Nazis lacked the economic resources for this project. Moreover, Nazi military strategy ruled out such a sustained long-term commitment in armaments development. Heisenberg explained that he personally felt fortunate that these circumstances prevented Hitler from having a bomb. He argued that he merely “pretended” to …

Current Issues: Doe's Nuclear Energy Programs, Peter Lyons

NSTec UNLV Symposium

• Secretary Moniz on Nuclear Energy
• Secretary Moniz Announces $6.5 Billion Vogtle Loan Guarantee
• Role of U.S. Department of Energy for Sustainable and Innovative Nuclear Energy
• Overview
• Why is the U.S. Government Interested in Supporting SMR Technologies?
• DOE Program to Support SMR Design Certification & Licensing
• Status of SMR Licensing Technical Support Program
• Blue Ribbon Commission Recommendations
• Administration Strategy for Used Fuel Management
• Congressional Activity
• Uranium Extraction from Seawater
• Supercritical CO₂ Energy Conversion
• HUBS AND NEAMS – PARTNERSHIP AND COMPLEMENTARITY
• Nuclear Energy Enabling Technologies Nuclear Energy Advanced Modeling & Simulation (NEAMS)
• NE Modeling and Simulation Energy Innovation Hub Highlights
• Nuclear …

Connecting Aerial Gamma Ray Surveys And Geochemical Data, Kara Marsac, Pamela Burnley, Elisabeth Hausrath, Russell Malchow, Daniel Haber

NSTec UNLV Symposium

• Radiation in the Environment
• Aerial Gamma Ray Surveys
• Radiation and Geology
• Collecting Existing Geochemical Data
• Rock Unit Geochemistry
• Model Creation and Comparison

Predictive Modeling Of Radiological Background Using Geochemistry, Daniel Haber, Pamela C. Burnley, Kara Marsac, Russell Malchow, Elisabeth Hausrath, Christopher Adcock

NSTec UNLV Symposium

• Introduction & Background
• Methods
• Models
• Results and Discussion
• Future Work

Explore The Six Fundamentals Unlv Accelerated: High-Energy X-Ray Applications (Hexa), Oliver A. Hemmers

NSTec UNLV Symposium

• UNLV and HEXA for a Brighter Southern Nevada Future
• History of HEXA’s Public-­‐Private Partnership
• Discovery Through Research and Innova4ve Technologies
• The Innova4ve Process
• Southern Nevada Research and Economic Development Applica4ons
• HEXA Program Benefits

Bacibeans: A Netbeans Plugin For Concurrent Programs, Ashley Broadwell

Seaver College Research And Scholarly Achievement Symposium

C-- is a programming language developed by M. Ben-Ari to teach principles of concurrent and distributed programming. It is a small subset of the C language but with the added features of concurrency, semaphores, and monitors. BACI is an acronym for Ben-Ari Concurrency Interpreter. JavaBACI is an open-source command line concurrency simulator used by students to compile and run C-- programs. NetBeans is an integrated development environment (IDE) that many students use in our courses to develop Java and C++ programs. This talk describes the development of a NetBeans plug-in we call BACIBeans that integrates JavaBACI into NetBeans, combining the …

What Makes A ‘Good’ Definition: Analyzing Students’ Conceptions Of Mathematical Definitions And The Pedagogy Of Definitions In Math Education, Jesse Aston

Seaver College Research And Scholarly Achievement Symposium

What are the key differences between how students view mathematical definitions and how their professors think they do? In this study we follow students during a guided reconstruction exercise in which they create a definition for, in this case, the convergence of a sequence and we record the process on film. Several theoretical frameworks including RME are then used to analyze student responses and behavior throughout the process and determine the difference in perceptions between student and teacher; these differences inform the best method to present definitions to students.

A Contagion Model Of Emergency Airplane Evacuations, Junyuan Lin

Seaver College Research And Scholarly Achievement Symposium

Motivated by the Asiana Flight 214 crash in San Francisco this summer, this project focuses on modeling an emergency airplane evacuation. Our models are based on the Particle Swarm Optimization (PSO) algorithm, where each agent's position is compared to a fitness function that describes the current environment. Each agent moves according to its knowledge of its own previous best position and the group's current best position. The static environment is modeled by a potential function that describes the layout of the airplane that includes the exits and physical barriers such as the seats. We model the interactions within the swarm …