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Full-Text Articles in Physical Sciences and Mathematics

Sigma Gamma Epsilon – Call To Convention: First Notice Oct 2024

Sigma Gamma Epsilon – Call To Convention: First Notice

The Compass: Earth Science Journal of Sigma Gamma Epsilon

The National Council has accepted an invitation from the Delta Psi Chapter (Western Illinois University) to host the Society’s 47th Biennial Convention on WIU’s Quad Cities Campus – located in Moline, Illinois, on the east bank of the Mississippi River. The convention is scheduled for April 11–13, 2025, and planning is underway. The Friday afternoon through Sunday noon schedule is designed to minimize the number of class days that delegates would need to miss. The Quad Cities International Airport (MLI) serves the area. At this time, we encourage chapters to “save the date” and to start making plans for a …

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A History Of The Geology Program At The University Of Tennessee At Martin, Michael A. Gibson Oct 2024

A History Of The Geology Program At The University Of Tennessee At Martin, Michael A. Gibson

The Compass: Earth Science Journal of Sigma Gamma Epsilon

The teaching of geology has as long a history as The University of Tennessee at Martin has itself, extending back to 1901 when the first geology class was offered at the campus’s original institution, Hall-Moody Institute, a small Baptist college. Geology, usually with geography, was offered as a service course to the primary programs of agriculture, education and, later, engineering. Faculty turnover during these formative years was frequent. When the school was acquired by the University of Tennessee in 1927 and became UT Junior College, geology remained a service course. Geology offerings had been expanding since 1947 and, in 1951, …

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Geoscience Student Organizations At The University Of Tennessee At Martin, Michael A. Gibson, Natalie Hudson Oct 2024

Geoscience Student Organizations At The University Of Tennessee At Martin, Michael A. Gibson, Natalie Hudson

The Compass: Earth Science Journal of Sigma Gamma Epsilon

In celebration of 2022 Sigma Gamma Epsilon 46th National Convention being hosted by the University of Tennessee at Martin (UT Martin), Eta Alpha Chapter, this paper serves a synopsis that celebrates the history of student clubs and professional organizations in the geosciences program at UT Martin. The first geoscience student organization officially recognized by the University was devoted to geology, the GeoClub, and established in 1970 and still serves as the primary student organization for all of the geosciences. UT Martin established the Eta Alpha Chapter of Sigma Gamma Epsilon honor society in 1997. A Travel and Tourism club was …

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Isolating Microbes From The Surface Of An Introductory Laboratory Halite Hand Sample, Kesley G. Banks, Michael A. Gibson, Matthew A. Pritchett Oct 2024

Isolating Microbes From The Surface Of An Introductory Laboratory Halite Hand Sample, Kesley G. Banks, Michael A. Gibson, Matthew A. Pritchett

The Compass: Earth Science Journal of Sigma Gamma Epsilon

Introductory geology labs stress simple physical testing (luster, hardness, etc.) to identify common minerals, using mineral charts to eliminate minerals not exhibiting a particular property. Special properties (magnetism, specific gravity, taste, etc.) for specific minerals narrows mineral identity. Students often express safety concerns about licking minerals, especially when they realize others have previously licked the specimen. As an exercise in medical geology, we cultured microbes from a halite sample used for nearly 25 years and licked by numerous students over that time span (Sample 1), a commercially purchased unused and freshly exposed surface of halite licked by one person (Sample …

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The History Of The Tennessee Earth Science Teachers (Test), Michael A. Gibson Oct 2024

The History Of The Tennessee Earth Science Teachers (Test), Michael A. Gibson

The Compass: Earth Science Journal of Sigma Gamma Epsilon

Tennessee Earth Science Teachers (TEST) was founded in 1990 to promote awareness of the need to integrate Earth science and geology education into the secondary school curricula of Tennessee and to ensure that Tennessee students received the curricular and instructional benefits of Earth Systems education. That mission expanded to include all K-12 grades and to infusing Earth science into other disciplines. A legacy of the participants from a 1991 Tittle II geology workshop for Tennessee teachers, TEST was instrumental in designing and providing academic and pedagogical training, disseminating educational materials, and with networking K-12 teachers with higher education geoscience educators …

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The Journey Into Inquiry Land In Tennessee: How To Get There From Anywhere? Lessons Learned Over 25 Years, Michael A. Gibson, Don W. Byerly Jr Oct 2024

The Journey Into Inquiry Land In Tennessee: How To Get There From Anywhere? Lessons Learned Over 25 Years, Michael A. Gibson, Don W. Byerly Jr

The Compass: Earth Science Journal of Sigma Gamma Epsilon

Driven by changes in the National Standards during the 1990s, inquiry became the pedagogical methodology of choice for K-12 sciences as a major paradigm shift. Inquiry was chosen because it realistically and accurately modeled how scientists conduct scientific studies. Scientific inquiry is itself a learning process, and early educational research suggested that students learned more efficiently through inquiry. However, inquiry was a difficult pedagogy for teachers to learn and for students to experience, as it appears chaotic and decentralized. K-12 Earth science in Tennessee was in need of revitalization, in terms of shifting to the new Earth systems curriculum and …

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Sigma Gamma Epsilon Chapter And Student Awards For Academic Year 2023-2024, Lee Potter Oct 2024

Sigma Gamma Epsilon Chapter And Student Awards For Academic Year 2023-2024, Lee Potter

The Compass: Earth Science Journal of Sigma Gamma Epsilon

The Society of Sigma Gamma Epsilon (SGE) encourages efforts to broaden the education and impact of its members through community outreach. In academic year 2023–2024, four awards were given at the chapter level: The Chapter Service Award to Gamma Sigma and Gamma Chi; and The James C. Walters Quality Chapter Award to Gamma Sigma and Gamma Chi. Individual merit was recognized through the W. A. Tarr awards given to twenty-nine members by their respective chapters. Two awards, the Austin A. Sartin and Charles J. Mankin Outstanding Poster Awards, were given to three students for merit in scientific communication at the …

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Introduction To The Issue: University Of Tennessee At Martin Eta Alpha Chapter Volume, Michael A. Gibson Oct 2024

Introduction To The Issue: University Of Tennessee At Martin Eta Alpha Chapter Volume, Michael A. Gibson

The Compass: Earth Science Journal of Sigma Gamma Epsilon

Welcome to the Eta Alpha Chapter volume of The Compass. The geosciences degree program at The University of Tennessee at Martin celebrated its 50th anniversary in 2022, just in time for the 46th Biennial Convention of Sigma Gamma Epsilon. The cover photo for this volume depicts the Joseph E. Johnson EPS (Engineering and Physical Sciences) Building that has been the home of the geosciences program since its construction in 1960. This volume is a series of papers that were initially compiled to be part of the 46th biennial convention volume that was to occur in 2019; however, the COVID-19 pandemic, …

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Examining The Relationship Between Land-Use Cover Change And Sociodemographic Characteristics: A Case Study Of Madison County, Tennessee, Thomas A. Depriest Jr., Anzhelia Antipova, Hsiang-Te Kung, Esra Ozdenerol Oct 2024

Examining The Relationship Between Land-Use Cover Change And Sociodemographic Characteristics: A Case Study Of Madison County, Tennessee, Thomas A. Depriest Jr., Anzhelia Antipova, Hsiang-Te Kung, Esra Ozdenerol

The Compass: Earth Science Journal of Sigma Gamma Epsilon

This study sought to holistically examine urbanization in Jackson, Madison County, TN. In order to accomplish this objective, a study of land-use and land cover (LULC) change in Madison County, TN from 1992–2011 was conducted. Once completed, noted changes in LULC were then compared to certain socio-demographic factors; these included, population, population density, point distance, central business district, and distance to roads. To determine if any significant relationships existed between socio-demographic factors and quantified LULC changes Spearman’s Correlations were utilized. Relationships between socio-demographic factors and land-use indicators were established as urban areas grew, agricultural and forested areas declined, and population …

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Impact Of Urbanization On Estimated Surface Runoff And Resulting Issuance Of Flash Flood Warnings In Jackson, Tennessee, Thomas A. Depriest Jr., Dorian J. Burnette, Ryan Parish, Hsiang-Te Kung Oct 2024

Impact Of Urbanization On Estimated Surface Runoff And Resulting Issuance Of Flash Flood Warnings In Jackson, Tennessee, Thomas A. Depriest Jr., Dorian J. Burnette, Ryan Parish, Hsiang-Te Kung

The Compass: Earth Science Journal of Sigma Gamma Epsilon

Land-use and land cover (LULC) changes for the Jackson, TN area from 1992–2011 were evaluated based on data from the National Landcover Database. During the time of study, this area underwent noted changes in LULC with an increase in the area defined as urban and decreases in forested and agricultural areas. This study also makes note of the increase in the number of days flash flood warnings were issued during the 1990’s as compared to the 2000’s. During the same time period, high intensity rainfall events during 1990’s (n=198) did not appreciably increase when compared to the 2000’s (n=208); therefore, …

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The Compass - Volume 93 Issue 2 - Complete Issue, Scott R. Beason Oct 2024

The Compass - Volume 93 Issue 2 - Complete Issue, Scott R. Beason

The Compass: Earth Science Journal of Sigma Gamma Epsilon

No abstract provided.

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Sigma Gamma Epsilon Student Research Poster Session, Geological Society Of America Annual Meeting 2023, Pittsburgh, Pennsylvania, Usa, Scott Beason Oct 2024

Sigma Gamma Epsilon Student Research Poster Session, Geological Society Of America Annual Meeting 2023, Pittsburgh, Pennsylvania, Usa, Scott Beason

The Compass: Earth Science Journal of Sigma Gamma Epsilon

The Society of Sigma Gamma Epsilon sponsors an annual poster session at every Annual Meeting of the Geological Society of America. The 35th Sigma Gamma Epsilon undergraduate research poster session took place during the 2023 Geological Society of America Annual Meeting in Pittsburgh, Pennsylvania, USA, on Monday, October 16, 2022. Sixty-three (63) posters were presented in Exhibit Hall B at the David L. Lawrence Convention Center between 8:00 AM and 5:30 PM at the poster session. Titles, authors (italics for the presenting author), affiliations, and abstracts for each poster are listed in this report.

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Review Of Fluke: Chance, Chaos, And Why Everything We Do Matters, Walter Hill Sep 2024

Review Of Fluke: Chance, Chaos, And Why Everything We Do Matters, Walter Hill

The Journal of Social Encounters

No abstract provided.

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Weather Risks, Crop Losses, And Risk Proneness: An Examination Of Evolving Risk Preferences Of Rice Farmers In Bangladesh, W. Parker Wheatley, Taznoore Khanam, Valerien O. Pede, Takashi Yamano Aug 2024

Weather Risks, Crop Losses, And Risk Proneness: An Examination Of Evolving Risk Preferences Of Rice Farmers In Bangladesh, W. Parker Wheatley, Taznoore Khanam, Valerien O. Pede, Takashi Yamano

Economics Faculty Publications

Changing climate poses significant challenges for smallholder rice farmers. Weather-related deviations from longer-term patterns and crop losses due to abiotic hazards can affect farmer risk preferences and drive adaptive responses. In addition, farmers’ proneness to and past experiences with crop risks such as drought, submergence, and excess soil salinity can impact their baseline risk preferences and their response to changing risks. Using data for Bangladesh from two waves of the Rice Monitoring Survey, climate-related data (precipitation and temperature), farmer reports of crop losses, and measures of proneness to abiotic risks, this article estimates how weather deviations from longer-term trends, crop …

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Resonant Solutions Of The Non-Linear Schrödinger Equation With Periodic Potential, Arein Duaibes, Yulia Karpeshina Jul 2024

Resonant Solutions Of The Non-Linear Schrödinger Equation With Periodic Potential, Arein Duaibes, Yulia Karpeshina

Mathematics Faculty Publications

The goal is construction of stationary solutions close to non-trivial combinations of two plane waves at high energies for a periodic non-linear Schrödinger Equation in dimension two. The corresponding isoenergetic surface is described for any sufficiently large energy k2. It is shown that the isoenergetic surface corresponding to k2 is essentially different from that for the zero potential even for small potentials. We use a combination of the perturbative results obtained earlier for the linear case and a method of successive approximation.

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Letter To The Members Of Sge From Your New Editor, Scott R. Beason Jul 2024

Letter To The Members Of Sge From Your New Editor, Scott R. Beason

The Compass: Earth Science Journal of Sigma Gamma Epsilon

No abstract provided.

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Overview Of The Geology, Paleontology, And Geoscience Education Opportunities Of The University Of Tennessee At Martin Coon Creek Science Center For Visitors, Researchers, And Docents, Michael A. Gibson Jul 2024

Overview Of The Geology, Paleontology, And Geoscience Education Opportunities Of The University Of Tennessee At Martin Coon Creek Science Center For Visitors, Researchers, And Docents, Michael A. Gibson

The Compass: Earth Science Journal of Sigma Gamma Epsilon

The Coon Creek Formation is an internationally recognized Upper Cretaceous (Campanian, 76 million-years-old) marine clastic lagerstätten deposit with over 500 identified species of nearly perfectly preserved invertebrates, vertebrates, plants, and trace fossils with original shell geochemistry and paleoecological fidelity preserved. The type-locality and type-section, located in rural McNairy County, Tennessee, was preserved for research and education in 1988 when the Memphis Pink Palace Museum constructed a 232-acre geoscience education facility on the site, now run as the University of Tennessee at Martin Coon Creek Science Center. Visitors to the site participate in a wide variety of geoscience education programming and …

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46th Biennial Convention Of Sigma Gamma Epsilon, University Of Tennessee At Martin, September 16-18, 2022, Richard L. Ford, Lee S. Potter Jul 2024

46th Biennial Convention Of Sigma Gamma Epsilon, University Of Tennessee At Martin, September 16-18, 2022, Richard L. Ford, Lee S. Potter

The Compass: Earth Science Journal of Sigma Gamma Epsilon

The Society of Sigma Gamma Epsilon (SGE), the national honorary society for the Earth sciences, held its 46th biennial convention (September 16-18, 2022) at satellite facilities of University of Tennessee at Martin (UT Martin) located in Selmer, Tennessee. The convention was hosted by SGE’s Eta Alpha Chapter and the Department of Agriculture, Geoscience, and Natural Resources at UT Martin. Ten (10) of SGE’s approximately 60 active chapters sent delegates to the convention. The traditional convention field trip, an outing to UT Martin’s Coon Creek Science Center, focused on collecting and preparing marine fossils from the Upper Cretaceous Coon Creek Formation. …

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Sigma Gamma Epsilon Student Research Poster Session, Geological Society Of America Annual Meeting 2022, Denver, Colorado, Usa, Scott R. Beason Jul 2024

Sigma Gamma Epsilon Student Research Poster Session, Geological Society Of America Annual Meeting 2022, Denver, Colorado, Usa, Scott R. Beason

The Compass: Earth Science Journal of Sigma Gamma Epsilon

The Society of Sigma Gamma Epsilon sponsors an annual poster session at every Annual Meeting of the Geological Society of America. The 2022 Sigma Gamma Epsilon undergraduate research poster session took place during the 2022 Geological Society of America Annual Meeting in Denver, Colorado, USA, on Monday, October 10, 2022. Ten (10) posters were presented in Exhibit Hall F at the Colorado Convention Center between 2:00 PM and 6:00 PM at the poster session. Titles, authors (italics for the presenting author), affiliations, and abstracts for each poster are listed in this report.

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Sigma Gamma Epsilon Chapter And Student Awards For Academic Year 2022-2023, Lee S. Potter Jul 2024

Sigma Gamma Epsilon Chapter And Student Awards For Academic Year 2022-2023, Lee S. Potter

The Compass: Earth Science Journal of Sigma Gamma Epsilon

The Society of Sigma Gamma Epsilon (SGE) encourages efforts to broaden the education and impact of its members through community outreach. In academic year 2022-2023, four awards were given at the chapter level: The Chapter Service Award to the Gamma Chi Chapter; and the James C. Walters Quality Chapter Award to the Gamma Sigma, Gamma Chi, and Epsilon Omega Chapters. Individual merit was recognized through the W. A. Tarr awards given to twenty-two members by their respective chapters. Two awards, the Austin A. Sartin and Charles J. Mankin Outstanding Poster Awards, were given to four students for merit in scientific …

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Fluvial Channel Path Evolution – Documenting Decades Of Change Along The Little Wabash River, East Central Illinois, Usa, Diane M. Burns, David Viertel, Kwang Il Yoo Jul 2024

Fluvial Channel Path Evolution – Documenting Decades Of Change Along The Little Wabash River, East Central Illinois, Usa, Diane M. Burns, David Viertel, Kwang Il Yoo

The Compass: Earth Science Journal of Sigma Gamma Epsilon

As highly dynamic landforms, rivers etch their channels into the surrounding and underlying strata over time, continuously reshaping the landscapes they traverse. This study examines geomorphological changes of the Little Wabash River in East Central Illinois between 1938 and 2011. The Little Wabash River is a meandering river sourced in southwestern Coles County, Illinois, and flows southward approximately 390 km to its confluence with the Wabash River. The historical location of the Little Wabash River was delineated to establish a baseline survey using archival aerial photography acquired in 1938. To understand how the channel evolved, investigations were conducted in each …

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The Compass - Volume 93 Issue 1 - Complete Issue, Scott R. Beason Jul 2024

The Compass - Volume 93 Issue 1 - Complete Issue, Scott R. Beason

The Compass: Earth Science Journal of Sigma Gamma Epsilon

No abstract provided.

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College Of Saint Benedict And Saint John's University Fy2023 Greenhouse Gas Emissions Inventory, Csb+Sju Office Of Sustainability Jun 2024

College Of Saint Benedict And Saint John's University Fy2023 Greenhouse Gas Emissions Inventory, Csb+Sju Office Of Sustainability

Sustainability Office Publications

The College of Saint Benedict (CSB) and Saint John’s University (SJU) Office of Sustainability conducted a comprehensive Greenhouse Gas (GHG) Inventory that includes emissions from both CSB and SJU campuses. This report details GHG emissions for Fiscal Year (FY) 2023 (July 1, 2022-June 30, 2023) in Metric Tons of Carbon Dioxide Equivalents (MTCO2e), the standard unit of measurement used to track and report GHG emissions based on their global warming potential. Data was collected, organized, and analyzed by staff in the CSB and SJU Sustainability Office.

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Supercontinuum Generation With A Ti: Sapphire Laser And Photonic Crystal Fiber, Joseph Lange May 2024

Supercontinuum Generation With A Ti: Sapphire Laser And Photonic Crystal Fiber, Joseph Lange

Celebrating Scholarship and Creativity Day (2018-)

A broad spectrum of visible light was produced by focusing the 50-fs, 800-nm, 5-nJ pulses from an unamplified Ti:sapphire laser into a 20-cm-long photonic crystal fiber. A prism pair was used to compensate for material dispersion of the system. Different focusing methods were investigated including beam telescopes and lenses of various focal lengths. A 3X beam expander telescope near the laser output and a 3-cm focal length achromatic lens after the prism pair were found to work best for coupling the light into the fiber which has a core diameter of 1.7 μm.

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Data Analysis Project For Preferred Credit Inc., Emily Smith, Greta Nesbit, Jack Simonet, Ignacio Sanchez-Romero May 2024

Data Analysis Project For Preferred Credit Inc., Emily Smith, Greta Nesbit, Jack Simonet, Ignacio Sanchez-Romero

Celebrating Scholarship and Creativity Day (2018-)

This project focuses on transforming real data within PCI's operations into valuable insights through an approach of coding, data cleaning, and visualization. By leveraging advanced techniques, the project aims to uncover key trends and create visually compelling representations to aid decision-making within the company. The outcome will allow PCI stakeholders the ability to extract valuable insights, optimize processes, and drive initiatives for growth and competitive advantage in the finance industry.

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Comparison Of The Fluorescence Of Bulk Cadmium Sulfide And Cadmium Sulfide Nanoparticles, Jacob Goranson May 2024

Comparison Of The Fluorescence Of Bulk Cadmium Sulfide And Cadmium Sulfide Nanoparticles, Jacob Goranson

Celebrating Scholarship and Creativity Day (2018-)

The fluorescence of bulk cadmium sulfide and cadmium sulfide nanoparticles were compared. This was done using an 800-nm, unamplified Ti:sapphire laser producing 50-fs pulses. The pulses were frequency doubled using a beta barium borate (BBO) crystal. The 400-nm beam was used to induce fluorescence in the nanoparticles, while the original 800-nm beam was used to induce fluorescence in the bulk CdS by two-photon absorption. The bulk CdS showed a single fluorescent peak at 523 nm. The nanoparticles showed fluorescence at various wavelengths across the visible spectrum. In general, the nanoparticles showed a broad fluorescent spectrum between 500 nm and 750 …

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A Mceliece Cryptosystem, Using Permutation Error-Correcting Codes, Fiona Smith May 2024

A Mceliece Cryptosystem, Using Permutation Error-Correcting Codes, Fiona Smith

CSB and SJU Distinguished Thesis

Using existing methods of cryptography, we can encrypt messages through the internet. However, these methods are vulnerable to attacks done by a quantum computer, which are a rising threat to security. In this thesis I discuss a possible method of encryption, secure against quantum attacks, using permutation groups and coding theory.

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Representations Of Gender In Math-Related Films, Jacob Gathje May 2024

Representations Of Gender In Math-Related Films, Jacob Gathje

CSB and SJU Distinguished Thesis

This project analyzes how four popular math-related films - Hidden Figures, Mean Girls, Good Will Hunting, and A Beautiful Mind - either follow, resist, or reconfigure gender stereotypes in mathematics. It includes close readings of specific scenes in each of the films, along with broader analysis of the effects of how women and men are represented differently. It concludes forward-looking focus, providing suggestions for how future math-related movies can depict a more realistic and inclusive version of the field of mathematics. Ideally, this will help improve one part of the larger issue of gender disparities in math.

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Using Student Interests To Explore Inclusion In Undergraduate Chemistry, Sonja Hoversten May 2024

Using Student Interests To Explore Inclusion In Undergraduate Chemistry, Sonja Hoversten

CSB and SJU Distinguished Thesis

For students who are not chemistry majors, but who are on a career track requiring four chemistry courses, taking the final reactivity chemistry course (CHEM 251) for pre-health students can be daunting. For this reason, this research is focused on the CHEM 251 course at The College of Saint Benedict and Saint John’s University (CSBSJU) which is one of the four required chemistry courses for pre-medicine and some pre-physician assistant students, and all chemistry and biochemistry majors. Student perception of inclusion in the course increased through the implementation of group assignments including prompts for individual application of the material. The …

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Caterpillar, Lobster, X Graphs, Gerald Melin, Landon Seward, Will Mahowald, Xavier Jones Apr 2024

Caterpillar, Lobster, X Graphs, Gerald Melin, Landon Seward, Will Mahowald, Xavier Jones

Celebrating Scholarship and Creativity Day (2018-)

We studied a combinatorial game played between two players ("Alpha", who goes first, and "Beta", who goes second). The idea is that there are a lot of lightbulbs in a large warehouse, and they take turns turning a light bulb on. When a light bulb is turned on, it illuminates the area directly by it as well as the areas immediately surrounding it. The player who is the one to make all of the warehouse illuminated is the winner. This can be modeled on a graph. The two players take turns (1) selecting a vertex that has not yet been …

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