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Articles 27241 - 27270 of 302421
Full-Text Articles in Physical Sciences and Mathematics
Higher Meanings: A Speaker Series Connecting Mathematics And Religion, Lawrence M. Lesser, Patricia S. Barrientos, Ben Zeidman
Higher Meanings: A Speaker Series Connecting Mathematics And Religion, Lawrence M. Lesser, Patricia S. Barrientos, Ben Zeidman
Journal of Humanistic Mathematics
An innovative grant-funded general adult audiences international speaker series on connections between mathematics and religion yielded six 2021 (now archived) presentations. We share reflections and lessons learned, informed by two sets of surveys.
Conic Diagrams, David Pierce
Conic Diagrams, David Pierce
Journal of Humanistic Mathematics
Textbooks may say that the so-called conic sections can be obtained from cones, but this is rarely proved. However, diagrams of the proof require no intuition for solids and can be read as flat. We construct the diagrams with ruler and compass and derive from them basic properties of conic sections as established by Apollonius of Perga, though again in a way that does not require a third dimension. The construction inevitably involves choices that give play to one’s aesthetic sense.
Navigating Mathematics Teacher Preparation During A Time Of Crisis, Zareen G. Rahman, Rani Satyam, Younggon Bae
Navigating Mathematics Teacher Preparation During A Time Of Crisis, Zareen G. Rahman, Rani Satyam, Younggon Bae
Journal of Humanistic Mathematics
In this paper we highlight the experience of a mathematics teacher educator (MTE) and their prospective teachers (PTs) in a middle school mathematics methods course during the 2020 shift to online instruction due to the COVID-19 pandemic. We believe it is valuable to report how the MTE reflected on their instructional decision-making in response to this massive transition to remote instruction. We also report that PTs needed support and guidance to employ new teaching practices they had learned in the methods course instead of reverting to familiar teaching methods.
What In The World Just Happened? Students’ Self-Regulation In Asynchronous Precalculus During The Covid-19 Pandemic, Whitney George, Keith Gallagher
What In The World Just Happened? Students’ Self-Regulation In Asynchronous Precalculus During The Covid-19 Pandemic, Whitney George, Keith Gallagher
Journal of Humanistic Mathematics
We describe students’ learning practices in an online asynchronous PreCalculus course during Fall 2020, the first complete semester of distance learning induced by the COVID-19 pandemic. Results were compiled using a thematic analysis of a questionnaire administered to 43 students enrolled in PreCalculus at a university in the Midwest (United States). Students were given opportunities for active learning and various synchronous Q&A sessions, yet they primarily learned through watching videos and reading worked examples, minimizing interactions with the instructor and available tutors. The questionnaire results show that students knew active learning was helpful, but they were unable to curtail unproductive …
Social Justice And Exponential Functions: Using Pandemic Data To Increase Student Understanding, Jane Friedman
Social Justice And Exponential Functions: Using Pandemic Data To Increase Student Understanding, Jane Friedman
Journal of Humanistic Mathematics
This paper describes a class activity based on real data about COVID-19 death rates in California. The activity helps students learn about exponential functions while providing an opportunity to integrate social justice concerns into the mathematics classroom.
Beyond Ethics: Considerations For Centering Equity-Minded Data Science, Nathan Alexander, Carrie Diaz Eaton, Anelise H. Shrout, Belin Tsinnajinnie, Krystal Tsosie
Beyond Ethics: Considerations For Centering Equity-Minded Data Science, Nathan Alexander, Carrie Diaz Eaton, Anelise H. Shrout, Belin Tsinnajinnie, Krystal Tsosie
Journal of Humanistic Mathematics
In this paper, we utilize duoethnography - a research method in which practitioners discursively interrogate the relationships between culture, context, and the mechanisms which shape individual autobiographical experiences - to explore what may be beyond ethics in the context of data science. Although ethical frameworks have the ability to reflect cultural priorities, a singular view of ethics, as we explore, often fails to speak to the multiple and diverse priorities held both within and across institutional spaces. To that end, this paper explores multiple perspectives, epistemologies, and worldviews that can collectively push researchers towards considerations of a data science education …
Stewardship Of Mathematics: Essential Training For Contributors To, And Users Of, The Practice Of Mathematics, Rochelle E. Tractenberg
Stewardship Of Mathematics: Essential Training For Contributors To, And Users Of, The Practice Of Mathematics, Rochelle E. Tractenberg
Journal of Humanistic Mathematics
A steward of the discipline was originally defined as an individual to whom “we can entrust the vigor, quality, and integrity of the field”, and more specifically, as “someone who will creatively generate new knowledge, critically conserve valuable and useful ideas, and responsibly transform those understandings through writing, teaching, and application” [8]. Originally articulated for doctoral education, in 2019 the construct of stewardship was expanded so that it can also be applied to non-academic practitioners in any field, and can be initiated earlier than doctoral education [18]. In this paper, we apply this construct to the context of mathematics, and …
A Mini-Seminar: Teaching Ethics In Mathematics In An Hour A Week, Allison N. Miller
A Mini-Seminar: Teaching Ethics In Mathematics In An Hour A Week, Allison N. Miller
Journal of Humanistic Mathematics
This article describes a one-credit class on ethics in mathematics, which met once a week for an hour and discussed topics in cryptography, algorithms and big data, and the role of mathematics in public life. I offer anecdotal evidence that even a course with relatively little time commitment for both students and faculty can have a significant impact on students' understanding of and interest in ethics in mathematics. I also collect recommendations and resources in the hopes of encouraging others to consider teaching such a course.
Towards Pedagogy Supporting Ethics In Modelling, Marie Oldfield
Towards Pedagogy Supporting Ethics In Modelling, Marie Oldfield
Journal of Humanistic Mathematics
Education for concepts such as ethics and societal responsibility that are critical in building robust and applicable mathematical and statistical models do currently exist in isolation but have not been incorporated into the mainstream curricula at the school or university level. This is partially due to the split between fields (such as mathematics, statistics, and computer science) in an educational setting but also the speed with which education is able to keep up with industry and its requirements. I argue that principles and frameworks of socially responsible modelling should begin at school level and that this would mean that ethics …
A Case For Ethics In The Mathematics Major Curriculum, Feryal Alayont
A Case For Ethics In The Mathematics Major Curriculum, Feryal Alayont
Journal of Humanistic Mathematics
When our students enter the workforce, be it in academia or in business, industry, government, they will be forced to make decisions about various ethical dilemmas. Once in a while, the scandalous stories like that of Enron, the three German auto-makers’ diesel fuel pact, and the Equifax data breach make the headlines. However, employees at every workplace are faced with small to large-scale ethical situations almost daily. In our majors’ future careers, a manager can be using an inappropriate graphic to display data to make the numbers look better, or the data collection processes used in a large public policy …
Benny, Barbara, And The Ethics Of Edtech, Geillan Aly
Benny, Barbara, And The Ethics Of Edtech, Geillan Aly
Journal of Humanistic Mathematics
Erlwanger (1973) shook the mathematics education world when he introduced Benny, a student who successfully worked through a behavioristic curriculum. Erlwanger showed how far removed Benny’s understanding of mathematics was from expectations. Erlwanger’s legacy is the basis for this comparative case study which explores students’ actions in the modern, in-class computer-centered emporium classroom. Many striking similarities are found between Pearson’s MyMathLabs (MML) and Benny’s Individually Prescribed Instruction curriculum. In this case study we meet Barbara, a student who succeeds in MML but shows little understanding of mathematical concepts and demonstrates that the legacy of Benny is his continued appearance in …
Violence In Mathematics Teaching. Reflections Inspired By Levinas’ Totality And Infinity, Adriano Demattè
Violence In Mathematics Teaching. Reflections Inspired By Levinas’ Totality And Infinity, Adriano Demattè
Journal of Humanistic Mathematics
In mathematics class, violence is carried out in some usually not recognized situations. In this article, I share some reflections on the topic inspired by some passages of Totality and Infinity, work of the French-Lithuanian philosopher Emmanuel Levinas (1906-1995). I find violence by the teacher in not promoting students’ understanding of mathematics, in a distorted use of rhetoric, and in interrupting an ethical relation. This article analyses situations taken from class activities, focusing on the teacher’s presentation of mathematical content and students’ interventions. I also propose that the improvement of interventions in mathematics education is possible and suggest theoretical …
Foundational Mathematical Beliefs And Ethics In Mathematical Practice And Education, Richard Spindler
Foundational Mathematical Beliefs And Ethics In Mathematical Practice And Education, Richard Spindler
Journal of Humanistic Mathematics
Foundational philosophical beliefs about mathematics in the mathematical community may have an unappreciated yet profound impact on ethics in mathematical practice and mathematics education, which also affects practice. A philosophical and historical basis of the dominant platonic and formalist views of mathematics are described and evaluated, after which an alternative evidence-based foundation for mathematical thought is outlined. The dualistic nature of the platonic view based on intuition is then compared to parallel historical developments of universalizing ethics in Western thought. These background ideas set the stage for a discussion of the impact of traditional mathematical beliefs on ethics in the …
Ethics And Mathematics – Some Observations Fifty Years Later, Gregor Nickel
Ethics And Mathematics – Some Observations Fifty Years Later, Gregor Nickel
Journal of Humanistic Mathematics
Almost exactly fifty years ago, Friedrich Kambartel, in his classic essay “Ethics and Mathematics,” did pioneering work in an intellectual environment that almost self-evidently assumed a strict separation of the two fields. In our first section we summarize and discuss that classical paper. The following two sections are devoted to complement and contrast Kambartel’s picture. In particular, the second section is devoted to ethical aspects of the indirect and direct mathematization of modern societies. The final section gives a short categorization of various philosophical positions with respect to the rationality of ethics and the mutual relation between ethics and mathematics.
The Formal Presentation Language Of Mathematics And Communication Ethics, Marshall Gordon
The Formal Presentation Language Of Mathematics And Communication Ethics, Marshall Gordon
Journal of Humanistic Mathematics
Mathematics employs a formal language where symbols, verbs, and nouns serve to express terms, concepts, and rules that concatenate to definitions, problem-solving procedures, and proofs. Taken together these constitute the expository language of mathematics found in journals, textbooks, and demonstrations. As a communication given to informing, there are epistemological and ethical considerations that deserve examination. For in keeping with the commitment to an aesthetic of concision promulgated by tradition, the formal presentation language and style of mathematics, while valuable in furthering the body of knowledge, provides only the conclusion of an inquiry, completely excluding the language of investigation that informed …
Special Issue -- Ethics In Mathematics: Foreword, Catherine Buell, Victor Piercey
Special Issue -- Ethics In Mathematics: Foreword, Catherine Buell, Victor Piercey
Journal of Humanistic Mathematics
No abstract provided.
Doughnuts And Ice Cream Cones: Sweet Mathematics, Mark Huber, Gizem Karaali
Doughnuts And Ice Cream Cones: Sweet Mathematics, Mark Huber, Gizem Karaali
Journal of Humanistic Mathematics
No abstract provided.
The Changing Urban Forest In Gallup, New Mexico: Contextualizing Urban Tree Programs And Planning Processes, Joseph A. Scala
The Changing Urban Forest In Gallup, New Mexico: Contextualizing Urban Tree Programs And Planning Processes, Joseph A. Scala
Geography ETDs
Tree plantings are often proposed as a solution to a variety of urban problems. The purpose of this project is to investigate the historical formation of urban tree cover in Gallup, New Mexico, and the extent to which urban tree plantings can benefit areas with inequitable urban tree distribution. To do this, I employ a mixed methods approach that includes correlation analysis, historical analysis, and analysis of urban tree canopy change from 1972-2005. The findings from this study indicate that Gallup’s history of tree plantings is heavily influenced by its history of economic development. Additionally, the findings demonstrate that if …
Quantization For A Probability Distribution Generated By An Infinite Iterated Function System, Lakshmi Roychowdhury, Mrinal Kanti Roychowdhury
Quantization For A Probability Distribution Generated By An Infinite Iterated Function System, Lakshmi Roychowdhury, Mrinal Kanti Roychowdhury
School of Mathematical and Statistical Sciences Faculty Publications and Presentations
Quantization for probability distributions concerns the best approximation of a d-dimensional probability distribution P by a discrete probability with a given number n of supporting points. In this paper, we have considered a probability measure generated by an infinite iterated function system associated with a probability vector on ℝ. For such a probability measure P, an induction formula to determine the optimal sets of n-means and the nth quantization error for every natural number n is given. In addition, using the induction formula we give some results and observations about the optimal sets of n-means for all n ≥ 2.
Meta-Detr: Image-Level Few-Shot Detection With Inter-Class Correlation Exploitation, Gongjie Zhang, Zhipeng Luo, Kaiwen Cui, Shijian Lu, Eric P. Xing
Meta-Detr: Image-Level Few-Shot Detection With Inter-Class Correlation Exploitation, Gongjie Zhang, Zhipeng Luo, Kaiwen Cui, Shijian Lu, Eric P. Xing
Machine Learning Faculty Publications
Few-shot object detection has been extensively investigated by incorporating meta-learning into region-based detection frameworks. Despite its success, the said paradigm is still constrained by several factors, such as (i) low-quality region proposals for novel classes and (ii) negligence of the inter-class correlation among different classes. Such limitations hinder the generalization of base-class knowledge for the detection of novel-class objects. In this work, we design Meta-DETR, which (i) is the first image-level few-shot detector, and (ii) introduces a novel inter-class correlational meta-learning strategy to capture and leverage the correlation among different classes for robust and accurate few-shot object detection. Meta-DETR works …
Facial-Sketch Synthesis: A New Challenge, Deng Ping Fan, Ziling Huang, Peng Zheng, Hong Liu, Xuebin Qin, Luc Van Gool
Facial-Sketch Synthesis: A New Challenge, Deng Ping Fan, Ziling Huang, Peng Zheng, Hong Liu, Xuebin Qin, Luc Van Gool
Machine Learning Faculty Publications
This paper aims to conduct a comprehensive study on facial-sketch synthesis (FSS). However, due to the high cost of obtaining hand-drawn sketch datasets, there is a lack of a complete benchmark for assessing the development of FSS algorithms over the last decade. We first introduce a high-quality dataset for FSS, named FS2K, which consists of 2 104 image-sketch pairs spanning three types of sketch styles, image backgrounds, lighting conditions, skin colors, and facial attributes. FS2K differs from previous FSS datasets in difficulty, diversity, and scalability and should thus facilitate the progress of FSS research. Second, we present the largest-scale FSS …
The Dope Distance Is Sic: A Stable, Informative, And Computable Metric On Ordered Merge Trees, Jose Arbelo, Antonio Delgado, Charley Kirk, Zach Schlamowitz
The Dope Distance Is Sic: A Stable, Informative, And Computable Metric On Ordered Merge Trees, Jose Arbelo, Antonio Delgado, Charley Kirk, Zach Schlamowitz
Mathematics Summer Fellows
When analyzing time series data, it is often of interest to categorize them based on how different they are. We define a new dissimilarity measure between time series: Dynamic Ordered Persistence Editing (DOPE). DOPE satisfies metric properties, is stable to noise, is as informative as alternative approaches, and efficiently computable. Satisfying these properties simultaneously makes DOPE of interest to both theoreticians and data scientists alike.
Accessdesign: An Inclusive Co-Design Toolkit For The Creation Of Accessible Digital Tools., Claudia Fernandez-Rivera, Sarah Boland, Eamon Aswad, John Gilligan, Dympna O'Sullivan, Emma Murphy
Accessdesign: An Inclusive Co-Design Toolkit For The Creation Of Accessible Digital Tools., Claudia Fernandez-Rivera, Sarah Boland, Eamon Aswad, John Gilligan, Dympna O'Sullivan, Emma Murphy
Articles
Existing toolkits and resources to support co-design are not always accessible to designers and co-designers with disabilities. In this paper we present a study based on an innovative co-design programme, in collaboration with St John of God Community Services, where 3rd year computer science students work with service users with intellectual disabilities to create digital applications together. We conducted a series of co-design focus group sessions involving the service users who were previously involved in the co-design collaboration with SJOG Services and TU Dublin. The data collected during these design sessions has been integrated to form an accessible design toolkit …
Chromatography-Mass Spectroscopy Analysis Of Native American Pottery For Maple Syrup Residue [Poster], Alexis Wirtz, Joshua Sebree Ph.D., Donald Gaff Ph.D.
Chromatography-Mass Spectroscopy Analysis Of Native American Pottery For Maple Syrup Residue [Poster], Alexis Wirtz, Joshua Sebree Ph.D., Donald Gaff Ph.D.
Summer Undergraduate Research Program (SURP) Symposium
The research conducted regards whether or not Native Americans understood how to create maple syrup before the influence of Europeans. Through the usage of Gas Chromatography-Mass Spectroscopy (GC-MS), the identity of different maple syrup organic residues within pottery can be determined.1 These organic residues tell us more about Native American history and culture. An analysis of organic residues was performed on the following types of pottery: proof of concept and weathered (an analog of the proof of concept). Organic residues were able to be identified within the proof of concept but not in the weathered pottery. This research also …
Geoarchaeology Of The 1926 Seeberger Excavation - Jackson County, Iowa, Nicolas Duffy, Chad Heinzel Ph.D., Faith Luce, William Green
Geoarchaeology Of The 1926 Seeberger Excavation - Jackson County, Iowa, Nicolas Duffy, Chad Heinzel Ph.D., Faith Luce, William Green
Summer Undergraduate Research Program (SURP) Symposium
In 1926, Paul Nesbitt discovered around 350 shards of clay pottery in Seeberger Cave, located 6 miles north of Maquoketa, Iowa. It is unknown if these artifacts were made in Iowa, or brought over from neighboring states. For this project, Dr. Heinzel, Faith Luce and I traveled to the area to collect samples of clay and stone. We got close to the cave, but didn’t have the equipment to cross the river at the time. The area we collected our samples from is about 600 meters away from the original site. The samples will be used to characterize the site, …
The Total Solar Eclipse Of 1869 In Iowa: What Remains Today, Jacob P. Baskin
The Total Solar Eclipse Of 1869 In Iowa: What Remains Today, Jacob P. Baskin
Summer Undergraduate Research Program (SURP) Symposium
On August 7th, 1869, a total solar eclipse was visible in the United States. It carved a path through the heartland, nearly bisecting the state of Iowa as it ran from the northwest corner of the state, through Des Moines, and down through the southeast. As the scientists of the day flocked from universities and observatories on the east coast to the Midwest for a chance to make observations and measurements, many of the teams chose to set up in Iowa. Along the path of the eclipse, the parties built temporary observatories to house their telescopes, or simply picked buildings …
Using Atomic Force Microscopy To Study Dna And Rad51 Protein Interaction, Samrin Shahnaz, Justin Peters Ph.D.
Using Atomic Force Microscopy To Study Dna And Rad51 Protein Interaction, Samrin Shahnaz, Justin Peters Ph.D.
Summer Undergraduate Research Program (SURP) Symposium
Recombinase proteins, such as RAD51, play a central role in repairing double-strand breaks of DNA through the process of homologous recombination. In this project, Atomic Force Microscopy (AFM) was used to generate scans of RAD51 proteins bound to double-stranded DNA. Due to the cooperativity of RAD51 binding, we observed a nucleation effect where RAD51 proteins generally tended to bind to DNA that already had other RAD51 proteins bound.
Attitudes Toward The Chemistry Laboratory Learning Environment Using Different Pedagogies And Assessment Protocols, Lydia Richardson, Dawn Del Carlo Ph.D.
Attitudes Toward The Chemistry Laboratory Learning Environment Using Different Pedagogies And Assessment Protocols, Lydia Richardson, Dawn Del Carlo Ph.D.
Summer Undergraduate Research Program (SURP) Symposium
The Science Writing Heuristic (SWH) and Argument Driven Inquiry (ADI) are evidence-based laboratory approaches that emphasize the process of scientific argumentation (Burke et al., 2006; Rudd et al., 2001; Walker et al., 2011). The University of Northern Iowa utilized the SWH approach for over 10 years until research indicated that the cognitive load associated with the pre-lab, specifically, hindered students’ ability to participate in authentic scientific inquiry for the rest of the laboratory experiment (Bonde & Del Carlo, 2018). In response to this, a hybrid model of instruction integrating elements of both the SWH and ADI laboratory approaches was created …
Analysis Of Temperature Dependence Of Surface Roughness Of Gold Film On Mos2, Joshua Wolff, Jeff Carlson, Timothy E. Kidd Ph.D.
Analysis Of Temperature Dependence Of Surface Roughness Of Gold Film On Mos2, Joshua Wolff, Jeff Carlson, Timothy E. Kidd Ph.D.
Summer Undergraduate Research Program (SURP) Symposium
We have developed a method to control the surface roughness of ultrathin Au surfaces on MoS2 crystals through the use of annealing. Through this method, we are now able to utilize Au surfaces for a variety of research, such as research on self-assembled monolayers (SAM) as well as with surface-enhanced Raman spectroscopy (SERS).