# Proposals

Below are some proposals for talks from the past (and current). By clicking on the ID number, more details are shown. By default, these are sorted chronologically (recent first) and by then by last name. The data can be sorted by alternate means by using the links at the top right, each allowing ascending or descending orders.

Displaying 1-20 of 471 results.
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ID: 576
Year: 2022
Name: uaatmtxffx IXuZSWBijffvScmF
Institution: hZfHkLnweN
Subject area(s): uqJKXIEllzYMVERy
Title of Talk: fnZOTELxLsKibpvdNLR

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ID: 575
Year: 2022
Name: johnansog jVddjdweBkriNeLUdzZ
Institution: WqXQtgMknm
Subject area(s): UYENATbCZewLr
Title of Talk: kCogoGTpEOaLyGxek

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ID: 574
Year: 2021
Name: Sergio Loch
Institution: Grand View University
Subject area(s):
Title of Talk: Initial Report on work about Math Transition

Abstract: Approaching existing issues for the high school to college transition requires the collaboration of the players involved in this transition: students, parents, teachers, instructors, counselors, and all their institutions and professional organizations. IHEMTAC is attempting to develop and propose ideas in the crucial area of mathematics to facilitate this interaction.
ID: 573
Year: 2021
Name: Amanda Matson
Institution: Clarke University
Subject area(s):
Title of Talk: Smiling While Grading: A Pursuit of a Paradox

Abstract: Dr. Matson will share the outcomes-based approach developed jointly with Dr. Kingston that ended with smiling while grading.
ID: 572
Year: 2021
Name: Catherine Hsu
Institution: Swarthmore College
Subject area(s):
Title of Talk: Projective and Non-Abelian SET

Abstract: Mathematicians love SET. On the surface, this classic game is a con test of pattern recognition, but it also presents an interesting way to visualize the geometry of a torus over a finite field. In this talk, we will discuss some of the mathematics connected to SET and then explore several new versions of the game, including one arising from projective geometry and one arising from non-abelian groups. In particular, we will see how these non-abelian variations on SET can give intuitive visualizations of abstract group structures.
ID: 571
Year: 2021
Name: Angela Kohlhaas
Institution: Loras College
Subject area(s):
Title of Talk: What Does It Mean to Have a Vocation in Mathematics?

Abstract: "Vocation" can be a confusing and even divisive word, but at Loras College, we take the term to mean finding your life's purpose or your way of seeking the common good for society. How can mathematics help our students find purpose and meaning in life? Do our students see mathematics as a way of seeking the common good? Do we? How do we cultivate a sense of mathematical vocation in our students? How do we grow in our own mathematical vocation and share it with our students?
ID: 570
Year: 2021
Name: James Sellers
Institution: University of Minnesota - Duluth
Subject area(s):
Title of Talk: Revisiting What Euler and the Bernoullis Knew About Convergent Infinite Series

Abstract: All too often in first-year calculus classes, conversations about infinite series stop with discussions about convergence or divergence. Such interactions are, unfortunately, not often illuminating or intriguing. Interestingly enough, Jacob and Johann Bernoulli and Leonhard Euler (and their contemporaries in the early 18th century) knew quite a bit about how to find the *exact* values of numerous families of convergent infinite series. In this talk, I will show two sets of *exact* results in this vein. The talk will be accessible to anyone interested in mathematics.
ID: 569
Year: 2021
Name: fpkonknrz uuEDLRaXwRxj
Institution: PiZiaywrPvCbUWk
Subject area(s): dyhNGEhkRvX
Title of Talk: PrnGztILsXtiHZgrG

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ID: 568
Year: 2021
Name: José Contreras
Institution: Ball State University
Subject area(s): Geometry
Title of Talk: The Power of GeoGebra to Investigate Converse Problems

Abstract: In this presentation, I illustrate how my students and I use GeoGebra to explore geometric converse problems. In particular, we use GeoGebra to gain insight into the solution to the following three problems: 1) Let ABCD be a quadrilateral with medial quadrilateral EFGH. If EFGH is a rectangle, what type of quadrilateral is ABCD? 2) Let E, F, G, and H be the midpoints of the consecutive sides of a quadrilateral ABCD. If EFGH is a rhombus, characterize quadrilateral ABCD. 3) E, F, G, and H are the midpoints of the consecutive sides of a quadrilateral ABCD. Name quadrilateral ABCD when EFGH is a square.
ID: 567
Year: 2021
Name: Billy Jackson
Institution: University of Wisconsin, Madison
Subject area(s): Undergraduate Mathematics Education
Title of Talk: Using Task Based Learning in Undergraduate Math Classes

Abstract: Task-based learning (TBL) has been used in K-12 education for quite some time. Although it is common in courses for elementary teachers, it is not regularly seen in other undergraduate courses. In this talk, I will present a working definition of TBL and provide examples of tasks in various introductory undergraduate math classes from College Algebra through Calculus. I will share examples of student comments and situations from my own courses that demonstrate just how powerful a tool TBL can be for instructors.
ID: 566
Year: 2021
Name: Zonghao Zou
Institution: Santa Clara University
Subject area(s):
Title of Talk: Helical trajectories of swimming cells with a flexible flagellar hook

Abstract: The flexibility of the bacterial flagellar hook is believed to have substantial consequences for microorganism locomotion. Using a simplified model of a rigid flagellum and a flexible hook, we show that the paths of axisymmetric cell bodies driven by a single flagellum in Stokes flow are generically helical. Phase-averaged resistance and mobility tensors are produced to describe the flagellar hydrodynamics, and a helical rod model which retains a coupling between translation and rotation is identified as a distinguished asymptotic limit. A supercritical Hopf bifurcation in the flagellar orientation beyond a critical ratio of flagellar motor torque to hook bending stiffness, which is set by the spontaneous curvature of the flexible hook, the shape of the cell body, and the flagellum geometry, can have a dramatic effect on the cell's trajectory through the fluid. Although the equilibrium hook angle can result in a wide variance in the trajectory's helical pitch, we find a very consistent prediction for the trajectory's helical amplitude using parameters relevant to swimming P. aeruginosa cells.
ID: 565
Year: 2021
Name: Eric Hart
Institution: Grand View University
Subject area(s):
Title of Talk: Mathematics Course Placement -- How? Why? For whom? Recommended Guidelines for an Effective Placement Process for the First College Mathematics Course

Abstract: The issue of mathematics transitions that students navigate as they move through high school to college and on to career is many faceted and critically impactful across education and workforce development, and affects educators at all levels, business and civic leaders, and most importantly, current and future Iowa students. A new state group has been formed to help address this issue—the Iowa Higher Education Mathematics Transition Advisory Council (IHEMTAC). The charge of the Advisory Council is to examine the relevant research and related literature around mathematical transitions for the purpose of developing and making recommendations and taking appropriate action steps relating to the mathematics transitions students make from high school through college. The Council is comprised of representatives from two- and four-year public and private institutions of higher education and representatives of high schools in Iowa, and is organized into action groups focused on three general objectives: • AG 1 – Provide Effective High School Mathematics Pathways • AG 2 – Provide an Effective Mathematics Transition from High School to College • AG 3 – Provide Effective College Mathematics Pathways In this session, we will focus on AG 2. In particular, we will present our near-final draft of recommendations for an effective mathematics course placement process. These recommendations are based on best practice and research. Please join us to help shape the final draft and move this work forward!
ID: 564
Year: 2021
Name: Mitchel Keller
Institution: Morningside University
Subject area(s): Undergraduate mathematics teaching, inquiry-based learning
Title of Talk: Implementing a Class Journal in a Small Upper-Division IBL Course

Abstract: In Fall 2020, I made a change to my upper-division IBL modern geometries course by making publishing in and refereeing for a class journal a significant part of the students' class grade. In this model, a student (or small group of students) who present a proof of a result in class submit a typed proof of the result to a class journal. The paper is then refereed and ultimately published. My first two iterations of this (including real analysis in Spring 2021) proved less successful than I had hoped, and I felt like part of the reason was having fewer than 10 students in my classes was partially at fault. I was not deterred. This fall, I am teaching Modern Algebra I using a class journal, and adjustments made appear to be paying off. In this talk, I will discuss the models that I have used, the struggles I encountered during the 2020–2021 academic year, and the changes made for Fall 2021 that have made a positive impact.
ID: 563
Year: 2021
Name: Mariah Birgen
Institution: Wartburg College
Subject area(s): Data Science
Title of Talk: Data Science and The Pandemic

Abstract: This talk could be titled "What I did on my COVID-19 Sabbatical." I will discuss data collection and cleaning, the use of R for data analysis, where we are as a state, and where we are going. I will also give advice to people newly interested in Data Science and take advice from the people in the audience who have been doing this a lot longer than I have.
ID: 562
Year: 2021
Name: Russ Goodman
Institution: Central College
Subject area(s): pedagogy, sports analytics
Title of Talk: Sports Analytics: Soccer -- An Honors Seminar Utilizing Cutting-Edge Technology for Course-Based Student Research

Abstract: In 2020, the speakers received a Moore Family Foundation grant to purchase 20 Catapult-brand GPS/accelerometer devices for use in student research. Subsequently, the speakers designed an honors seminar entitled Sports Analytics: Soccer to enable enrolled students to have a research experience with this new technology, studying aspects of “physical load” on the Central College women’s soccer team. This presentation will describe the structure of the course, the successes and challenges of the course, and what the future holds for this type of sports analytics undergraduate research at Central College.
ID: 561
Year: 2021
Name: Presley Kimball
Institution: Creighton University
Subject area(s): Mathematical Models, Epidimiology
Title of Talk: An ODE model of yaws elimination in Lihir Island, Papua New Guinea

Abstract: Yaws is a chronic infection that affects mainly the skin, bone, and cartilage and spreads mostly between children. The new approval of a medication as treatment in 2012 has revived eradication efforts and now only few localized foci of infection remain. The World Health Organization strategy mandates an initial round of total community treatment (TCT) with single-dose azithromycin followed either by further TCT or by total targeted treatment (TTT), an active case-finding and treatment of cases and their contacts. We develop the compartmental ODE model of yaws transmission and treatment for these scenarios. We solve for disease-free and endemic equilibria and also perform the stability analysis. We calibrate the model and validate its predictions on the data from Lihir Island in Papua New Guinea. We demonstrate that TTT strategy is efficient in preventing outbreaks but, due to the presence of asymptomatic latent cases, TTT will not eliminate yaws within a reasonable time frame. To achieve the 2030 eradication target, TCT should be applied instead.
ID: 560
Year: 2021
Name: Marshall Whittlesey
Institution: California State University San Marcos
Subject area(s): Geometry
Title of Talk: Using quaternions to prove theorems in spherical geometry

Abstract: It is well known that the complex numbers can be used to do transformation geometry in the plane. In particular, rotation by angle ϴ about the origin is accomplished via multiplication by the complex number e^iϴ=cos ϴ+ i sin ϴ. It is less well known that the quaternion algebra (consisting of expressions of the form a+bi+cj+dk with i^2=j^2=k^2=ijk=-1) can be used to do similar transformations in three dimensional space. In this talk we show how to use quaternions to prove an interesting classical theorem in spherical geometry. These methods are featured in the speaker's new book with CRC Press, "Spherical Geometry and its Applications", which the author hopes will be attractive for use in topics courses in geometry.
ID: 559
Year: 2021
Name: Jack Rausch
Institution: Creighton University
Subject area(s): Quantum Information Theory, Quantum Computing
Title of Talk: Developing a Quantum Resource Theory for One-Way Information

Abstract: In quantum information theory, the one-way information of the joint evolution of a composite system quantifies the causal relationship between systems. Given a composite two systems, an algorithm is used to create a state $\rho^{A'ABB'}$ which quantifies the one-way information via the measure $R\left(\rho^{A'ABB'} \right) = I\left(\rho^{B} : \rho^{A'AB'} \right) - I\left(\rho^{B} : \rho^{B'} \right)$. A quantum resource theory offers a new perspective to view one-way information. A quantum resource theory examines a problem under a set of physically meaningful limitations which identify certain operations as free (can be used without limitations) and others as resources (operations with limitations or costs). We define a quantum resource theory for one-way information based on the measure $R\left(\rho^{A'ABB'} \right)$, showing that: $R$ is an additive measure, all free states contain $0$ one-way information, the free operations contain all unitary operators $U_{AB} = U_A \otimes U_B$, and $R$ is monotonic under free operations, but not under the restricted operations.
ID: 558
Year: 2021
Name: mpazkvt ubUxGrQpZHbbYZv
Institution: icImzteiWthAdt
Subject area(s): QZAaMIFgkRreqn
Title of Talk: iNgEWUcEePPq

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ID: 557
Year: 2021
Name: sdjpnrulo HLmaHvVkmcvnAycMLTb
Institution: QYkWFmEaCLlh
Subject area(s): DsznTtoTtJGjxvaz
Title of Talk: bjNsnuTbptcndRLh

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