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2021

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Characterization And Targeting Of Voltage-Gated Ion Channels In Meningioma Cell Lines, Erik White Jan 2021

Characterization And Targeting Of Voltage-Gated Ion Channels In Meningioma Cell Lines, Erik White

Master's Theses

Meningiomas (MN) are primary brain tumors originating in the meningeal covering of the central nervous system. These tissues can evolve through familial inheritance (NF2, Cowden Syndrome, or Werner Syndrome) or sporadic mutations. The WHO categorizes MNs into three grades (I-III); Grade I contain benign tumors and Grade III the most aggressive. Increasing grade coincides with an increase in genetic diversity, making universal treatments difficult. MNs are typically treated with hydroxyurea (HU), but this chemotherapy agent has many adverse side effects, leading to research in less toxic options. This study uses ion channel antagonists for T- and L-type calcium channels using …

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Characterizing A Putative Membrane Androgen Receptor In Glioma Cell Models, Emma Yuen Jan 2021

Characterizing A Putative Membrane Androgen Receptor In Glioma Cell Models, Emma Yuen

Master's Theses

The goal of this current research was to explore the role of a putative membraneandrogen receptor (AR) in modulating the viability of various models of glioma/astrocytoma, relative to normal (non-tumor) astrocytes. We hypothesized that binding to the membrane AR could enhance the sensitivity of glioma cells to toxic insult (i.e., the chemotherapeutic, Temozolomide, TMZ), while leaving “normal” astrocytes unscathed. Our data reveal that binding to the putative membrane AR sensitized C6 glioma cells to TMZ and the oxidative/metabolic insult, iodoacetic acid (IAA). And while there was some evidence that binding to the membrane AR could enhance the effect of TMZ …

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Anthropogenic Particle (Including Microplastic And Microfiber) Transport And Retention In Streams Under Varied Environmental Conditions, Elizabeth Marjorie Berg Jan 2021

Anthropogenic Particle (Including Microplastic And Microfiber) Transport And Retention In Streams Under Varied Environmental Conditions, Elizabeth Marjorie Berg

Master's Theses

Microplastics (plastic particles <5 mm) and other anthropogenic particles (i.e., synthetic, semi-synthetic and anthropogenically modified cellulose particles < 5mm) are pollutants of concern in aquatic ecosystems worldwide. Anthropogenic particles enter food chains, adsorb harmful chemical pollutants, and are ubiquitous in aquatic ecosystems. Streams are key sites of anthropogenic particle input, retention, and transport, and empirical measurements of particle movement in lotic ecosystems are needed to inform global budgets of anthropogenic particles and microplastics. However, factors that influence anthropogenic particle retention in lotic ecosystems are poorly understood. We demonstrate how environmental characteristics affect plastic transport and retention in streams in experimental and observational studies. In our experimental study, we used particle spiraling metrics to directly measure microplastic retention in outdoor, experimental streams at Notre Dame's Linked Experimental Ecosystem Facility (ND-LEEF). We tested the impact of stream discharge (i.e., high, low), benthic biofilms (i.e., well-established biofilms, reduced biofilms post-scouring), and benthic substrate type (i.e., cobble, pea gravel, sand, mixed substrate) on retention of microplastic fibers using pulsed releases and synchronized water sample collection at 3 sites downstream. We also collected benthic surface samples for biomass and microplastic density. Samples were filtered directly (water samples) or after peroxide digestion (benthic samples), and experimental microplastic fibers were enumerated visually using a dissecting microscope. Microplastic deposition rates were significantly higher with (1) higher discharge, (2) well established benthic biofilm (as opposed to bare substrate), and (3) larger and more homogeneous substrates. The observational study examined anthropogenic particles (including microplastics and microfibers) in the Milwaukee River during storm events. Lotic ecosystems are highly variable (e.g., seasonal changes, storm events), and most research assessing anthropogenic particle pollution extrapolates stream particle loads based on measurements during only one point in time. This limits the accuracy of anthropogenic particle and microplastic dynamics models in rivers, where frequent changes in discharge drives retention and transport of fine particles. In this study, we used automated samplers to collect water from the Milwaukee River during four distinct storm events in the spring and summer of 2018. We quantified anthropogenic particle abundance using standard methods and used nearby USGS gauges to determine discharge. Anthropogenic particle concentrations varied significantly among the four sampling periods, highlighting the temporal variability of anthropogenic particle transport across dates. When data from the sampling periods were pooled, there was a decrease in anthropogenic particle concentration in the water column after storm events, indicating that floods may "flush" microplastics from the river. Unexpectedly, anthropogenic particle concentrations were not correlated with other water quality metrics, including concentrations of total suspended solids, fecal coliform, chloride, nitrate, and sulfate, indicating that these metrics cannot be used to estimate microplastic concentrations and likely have distinct driving factors. These results provide novel insights into the environmental factors controlling anthropogenic particle and microplastic fate and are critical to understanding the role of lotic retention and transport in global plastic budgets.

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Ecology And Open-Minded Cognition: Does Exposure To Pathogens Influence Open-Minded Cognition?, Gabriel Escudero Jan 2021

Ecology And Open-Minded Cognition: Does Exposure To Pathogens Influence Open-Minded Cognition?, Gabriel Escudero

Master's Theses

This study aimed to examine if a perceived pathogen contamination threat would influence participants level of open-minded cognition. This study obtained an online sample of 300 adults (i.e., 18-years or older) U.S. Amazon Mechanical Turk workers to participate in an online study. This study used a quantitative experimental design to examine if a manipulation of perceived pathogen contamination threat would influence participants level of situation-specific open-minded cognition (SSOMC). Participants were randomly assigned to either a perceived pathogen contamination condition in which they watched a short informative video on pathogens or a control condition in which participants watched a short innoxious …

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Does Manipulating Source Gender Predict A Person's Open-Mindedness As A Function Of Sexism?, Tanyelle Annette Galman Jan 2021

Does Manipulating Source Gender Predict A Person's Open-Mindedness As A Function Of Sexism?, Tanyelle Annette Galman

Master's Theses

The present research examines whether Communication Source Gender influences a message recipients' level of Open-Minded Cognition, and whether Ambivalent Sexism moderates this effect. Participants were asked to think of themselves as part of a military panel which considers proposals to military spending. Then after reading a proposal from either Cassandra Smith or David Smith, participants were asked to indicate whether they would be open to hearing more from the author. Participants were then instructed to complete the Ambivalent Sexism Inventory (Glick & Fiske, 1996). In total there were 395 participants in this study. Results show that there was no main …

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Pseudomonas Aeruginosa Prophages And Engineered Temperate Phages, Genevieve Johnson Jan 2021

Pseudomonas Aeruginosa Prophages And Engineered Temperate Phages, Genevieve Johnson

Master's Theses

The rising rate of antibiotic-resistant bacteria is a global health concern, and the Pseudomonas aeruginosa is estimated to be a leader in serious threats. Bacteriophages, or viruses that infect bacteria, have gained renewed interest in Western Medicine as an alternative to antibiotics. Phage therapy of P. aeruginosa infections has primarily focused on obligately lytic phages. However, prophages, or phages in the lysogenic life cycle, are estimated to far outnumber obligately lytic phages. In theory, these prophages can be genetically modified to be obligately lytic and thus ideal candidates for phage therapy. To date there has not been a comprehensive analysis …

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Ethnic Racial Socialization, Ethnic Identity, And Internalizing Outcomes In The Context Of Stress Among Mexican Origin Families, Sarah Alicia Jolie Jan 2021

Ethnic Racial Socialization, Ethnic Identity, And Internalizing Outcomes In The Context Of Stress Among Mexican Origin Families, Sarah Alicia Jolie

Master's Theses

Research demonstrates that it is important to study the impact of cultural factors on child development and well-being (Garcia Coll et al., 1996). Among Latino youth, ethnic racial socialization and ethnic identity have been associated with positive outcomes, such as academic competence and lower reports of internalizing problems (Liu & Lau, 2013; Berkel et al., 2010; Umaña-Taylor & Guimond, 2010). Additionally, there is evidence of ethnic identity mediating the association between ethnic racial socialization and child internalizing symptoms among Mexican-origin adolescents (Umaña-Taylor et al., 2014). However, more research is needed in examining these associations within stressful contexts relevant to Latino …

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Monstrous Feelings: Bisexuals, Vampires, & Ghosts, Oh My!, Jordan Lolmaugh Jan 2021

Monstrous Feelings: Bisexuals, Vampires, & Ghosts, Oh My!, Jordan Lolmaugh

Master's Theses

Bisexuality is an identity and epistemology that has been underutilized across queer theory and sexuality studies. In an effort to bridge that gap, this thesis attempts to intertwine bisexuality theory with queer theory to highlight the theoretical strength they offer one another. Further, this paper examines the ways in which bisexuality haunts and is haunted by mononormativity, and the ways in which bisexuality is monstrous. Through the use of cinematic texts, queer theory, bisexual theory, and affect theory, I will examine how bisexuality functions as both an identity and a epistemological landscape. The primary questions that drive this research include: …

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Rethinking Intimacy: Liberation Through Decolonial & Queer World-Making, Michelle Mae Mcguire Jan 2021

Rethinking Intimacy: Liberation Through Decolonial & Queer World-Making, Michelle Mae Mcguire

Master's Theses

Relationships play an important role in both the private and public spheres of our lives. If we understand our bodies to be the vessels through which we interact with all other objects, we come to understand the process of world-making as a summation of our relationships. Intimacy is the prevailing structure that helps assign meaning to these relationships. Intimacy binds together unfixed spatial and social relations that stretch across time and space. This essay examines the three intersecting sets of relations involved in intimacy as a means to deconstruct heteropatriarchal order and highlight the multiplicity of attachments and relationships that …

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Lactobacillus Metabolite-Mediated Induction Of Bacteriophage, Taylor Miller-Ensminger Jan 2021

Lactobacillus Metabolite-Mediated Induction Of Bacteriophage, Taylor Miller-Ensminger

Master's Theses

Once considered sterile in the absence of an infection, the female urinary tract is home to a diverse community (microbiota) of bacterial species and bacteriophage (phage), viruses that infect bacteria A dominant member of the female urinary microbiota is the bacterial genus Lactobacillus. Several Lactobacillus species are even associated with urinary health. Phage infectious of bacteria in the urinary tract tend to replicate through one of two life cycles: the lytic (active) life cycle or the lysogenic (dormant) life cycle. Temperate phage can switch from the lysogenic life cycle to the lytic life cycle in the presence of an environmental …

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Stigmatization Of In Transit Migration And The Devaluation Of Humanitarian Aid Resource Labor, Gabriela Perez Laurent Jan 2021

Stigmatization Of In Transit Migration And The Devaluation Of Humanitarian Aid Resource Labor, Gabriela Perez Laurent

Master's Theses

This analysis aims to gain insight into migrant stigmatization and the devaluation of humanitarian aid labor. Building off previous feminist scholarship on unpaid labor, this thesis seeks to add to our understanding of the dynamics of gendered devaluation of not only humanitarian volunteer labor, but also humanitarian aid support to stigmatized populations. The analysis expands on the production of illegalization and highlights the effects of stigmatization highlights the effects of stigmatization upon in transit populations on Tohono O'odham lands. Erin Hatton's framework of devaluation is applied to humanitarian aid distribution to analyze the devaluation of their labor due to proximity …

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The Effect Of Gonadal Steroids Following Repeat Mild Traumatic Brain Injury On Anxiety-Like Behaviors In Rats, Trevor Nykamp Jan 2021

The Effect Of Gonadal Steroids Following Repeat Mild Traumatic Brain Injury On Anxiety-Like Behaviors In Rats, Trevor Nykamp

Master's Theses

Traumatic brain injury (TBI) affects millions of people in the U.S. each year. This thesis worked to address anxiety, a common emotional symptom following TBI, by utilizing a five-hit repeat mild TBI (rmTBI) experimental model. First, changes in gonadal status following injury and the severity of anxiety symptoms experienced were investigated. Our data revealed that suppressed testosterone levels following rmTBI resulted in significantly more anxiety-like behaviors across several observational variables. Even more, some of these behaviors were reduced by providing testosterone supplementation immediately following injury.Another goal of this work was to investigate the role of mitochondrial dysfunction, measured by COX4i1 …

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The Role Of Intersensory Redundancy In Face Recognition In 5- And 12-Month-Old Infants, Aslı Bursalıoğlu Jan 2021

The Role Of Intersensory Redundancy In Face Recognition In 5- And 12-Month-Old Infants, Aslı Bursalıoğlu

Master's Theses

The goal of this study was to examine the role of audiovisual synchrony in 5- and 12-month-old infants’ attention to and processing of face stimuli. Infants were tested using an online platform called Lookit. In the first phase of the experiment, infants were familiarized with two videos presented simultaneously and side-by-side. Each video displayed a woman speaking in an infant-directed manner. A soundtrack was played that matched one of the videos (experimental condition) or neither of the videos (control condition). It was hypothesized that synchronous audiovisual presentation would attract infants’ attention and promote processing, especially among 12-month-olds. Visual-paired comparison (VPC) …

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Menstrual Pain Trajectories And Their Psychological And Behavioral Predictors, Hannah Marie Alves Hagy Jan 2021

Menstrual Pain Trajectories And Their Psychological And Behavioral Predictors, Hannah Marie Alves Hagy

Master's Theses

Despite the high prevalence of menstrual pain (i.e., dysmenorrhea) and the negative impact on quality of life, there is a dearth of research on how menstrual pain changes over time. There is also a critical need to understand psychological and behavioral predictors of these menstrual pain trajectories because dysmenorrhea is a known risk factor for the development of chronic pelvic pain (CPP) and chronic non-pelvic pain (CNPP). Given that current treatments for CPP and CNPP have had limited success, developing preventative strategies for dysmenorrhea is of high importance. Relying on longitudinal survey data collected as part of a larger investigation, …

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Kinship Involvement And Strength Development In The Child Welfare System, Nicole Amper Hodgkinson Jan 2021

Kinship Involvement And Strength Development In The Child Welfare System, Nicole Amper Hodgkinson

Master's Theses

For youth involved in the Child Welfare System (CWS), maltreatment and ecological losses pose enormous challenges to healthy development. Kin and fictive kin involvement, a current CWS priority, may have the potential to aid in strength development; however, little is known about its role in this process. The current study explored the following aims: (1) identify the role of kin and fictive kin in strength development (2) investigate the impact of maltreatment on initial strength levels and their development over time and (3) examine the extent to which kinship involvement interacts with prior maltreatment to buffer the impact of maltreatment …

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A Fair Share: How Awareness Of Inequality, Allocation Method, And System Justification Affect Perceptions Of Distributive Fairness, David Thomas Igliozzi Jan 2021

A Fair Share: How Awareness Of Inequality, Allocation Method, And System Justification Affect Perceptions Of Distributive Fairness, David Thomas Igliozzi

Master's Theses

In considering the different ways people view inequality and various proposed solutions,this study draws on classic psychological theories of distributive justice which outline three modes of allocation strategies: equality, equity, and need. While Deustch’s (1975) work on these three allocation alternatives laid the groundwork for years of distributive justice research that would follow, little empirical work has actually experimentally evaluated the conditions under which people might be more or less willing to support equity, equality, or need-based strategies. There is evidence that certain individual difference measures can predict support for redistribution. That is—those who rate highly on system justification, political …

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The Evolutionary And Morphological Diversification Of The Subtribe Papionina, Sophie B. Labelle Jan 2021

The Evolutionary And Morphological Diversification Of The Subtribe Papionina, Sophie B. Labelle

Master's Theses

Analysis of variation is critical in understanding evolutionary processes. The subtribe Papionina, defined commonly as baboons and their closest relatives, is a highly morphologically diverse group of primates that is useful for the examination of the relationship between variation and evolution. The subtribe is also a valuable behavioral, ecological, and morphological analogy for hominins. This study uses landmark-based cranial geometric morphometric data and multivariate analysis to test whether the pattern of morphological diversification present in Papionina is consistent with genetic drift and/or selection. The study sample consists of six extant genera of Papionin, represented by ~500 individuals collected by Michelle …

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A Role For Notch Signaling In Drosophila Spermatogenesis, Adrianna Soriano Jan 2021

A Role For Notch Signaling In Drosophila Spermatogenesis, Adrianna Soriano

Master's Theses

The Notch signaling pathway has diverse functions in male and female gonad development. In Drosophila male embryos, Notch specifies hub cell fate in somatic gonadal precursor cells (SGPs), which are important for maintaining germline stem cells and somatic cyst stem cells throughout the lifetime of adult flies. However, a role for Notch signaling in adult males has only started to emerge recently. Nonetheless, we still don’t understand how the Notch pathway functions to regulate spermatogenesis. Notch has been established to be important for the fertility of multiple systems, including mammals, and must be properly regulated for proper spermatogenesis, but the …

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Anthropogenic Litter In Illinois Streams: Monitoring, Distribution, And Relationship To Biological Indicators Of Stream Health, Lauren Wisbrock Jan 2021

Anthropogenic Litter In Illinois Streams: Monitoring, Distribution, And Relationship To Biological Indicators Of Stream Health, Lauren Wisbrock

Master's Theses

Anthropogenic litter (i.e., trash; AL) is increasing in aquatic ecosystems worldwide. AL shows a patchy, uneven distribution in lotic ecosystems due to heterogeneity in its sources, how it moves, and mechanisms of retention. In addition, the diversity of material types, size, and mobility makes developing techniques to measure AL assemblage in rivers a challenge. In rivers, watershed land-use and riparian features likely impact AL abundance and composition, but this impact is not fully understood. Measuring AL can be time consuming and labor intensive, so rapid assessments are needed for ecosystem managers to quantify the level of AL impairment in a …

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Risk Factors And Knowledge Associated With High Unintended Pregnancy Rates And Low Family Planning Use Among Pregnant Women In Papua New Guinea, Elizabeth Peach, Christopher Morgan, Michelle J. L. Scoullar, Freya J. I. Fowkes, Elissa Kennedy, Pele Melepia, Primrose Homiehombo, Lucy Au, Stanley Luchters, Alexandra J. Umbers Jan 2021

Risk Factors And Knowledge Associated With High Unintended Pregnancy Rates And Low Family Planning Use Among Pregnant Women In Papua New Guinea, Elizabeth Peach, Christopher Morgan, Michelle J. L. Scoullar, Freya J. I. Fowkes, Elissa Kennedy, Pele Melepia, Primrose Homiehombo, Lucy Au, Stanley Luchters, Alexandra J. Umbers

Population Health, East Africa

Unintended pregnancy is a major driver of poor maternal and child health in resource-limited settings. Data on pregnancy intention and use of family planning (FP) is scarce in Papua New Guinea (PNG), but are needed to inform public health strategies to improve FP accessibility and uptake. Data from a facility-based cross-sectional sample of 699 pregnant women assessed prevalence and predictors of unintended pregnancy and modern FP use among pregnant women in East New Britain Province, PNG. More than half (55%) the women reported their pregnancy as unintended. Few (18%) reported ever having used a modern FP method, and knowledge of …

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Developing A Self-Assessment Instrument To Evaluate Practice-Readiness Among Student Pharmacists, Channing Ford, Kevin N. Astle, Erika L. Kleppinger, Jeanna Sewell, Amber Hutchison, Kimberly B. Garza Jan 2021

Developing A Self-Assessment Instrument To Evaluate Practice-Readiness Among Student Pharmacists, Channing Ford, Kevin N. Astle, Erika L. Kleppinger, Jeanna Sewell, Amber Hutchison, Kimberly B. Garza

Research, Publications & Creative Work

This chapter explores the role of self-assessment in the development of professional identity formation within student pharmacists.

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Evaluating The Impact Of A Longitudinal Patient Case On The Development Of Professionalism And Professional Identity, Kimberly B. Garza, Lindsey E. Moseley, Bradley M. Wright, Channing R. Ford Jan 2021

Evaluating The Impact Of A Longitudinal Patient Case On The Development Of Professionalism And Professional Identity, Kimberly B. Garza, Lindsey E. Moseley, Bradley M. Wright, Channing R. Ford

Research, Publications & Creative Work

This article explores the student outcomes of a progressive case on the development of professional identity and professionalism within first-year student pharmacists.

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Victim-Blaming In Disguise? Supervisors’ Accounts Of Problems In Healthcare Delivery, Kendra Jason, Brianna Turgeon Jan 2021

Victim-Blaming In Disguise? Supervisors’ Accounts Of Problems In Healthcare Delivery, Kendra Jason, Brianna Turgeon

Research, Publications & Creative Work

Using data from 77 supervisors in seven hospitals across the U.S. that participated in a national workforce development program for low-wage frontline workers, we explain how supervisors justified and reproduced social inequalities by accepting culture of poverty and neoliberal discourses and how supervisors used these discourses to resolve identity-work dilemmas. We demonstrate how supervisors engaged in identity talk that justified deprivation for workers and shielded management from blame. We discuss how supervisors subtly invoked class, race, and gender stereotypes—and thus reproduced ideologies supportive of structural inequalities—as they crafted accounts that drew attention away from economic and organizational problems and focused …

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Effects Of Beetroot Juice Supplementation On Cognitive Function, Aerobic And Anaerobic Performances Of Trained Male Taekwondo Athletes: A Pilot Study, Hossein Miraftabi, Zahra Avazpoor, Erfan Berjisian, Amir Sarshin, Sajjad Rezaei, Raul Dominguez, Reid Reale, Emerson Franchini, Mohammad Hossein Samanipour, Majid S. Koozehchian, Mark E.T. Willems, Ramin Rafiei, Alireza Naderi Jan 2021

Effects Of Beetroot Juice Supplementation On Cognitive Function, Aerobic And Anaerobic Performances Of Trained Male Taekwondo Athletes: A Pilot Study, Hossein Miraftabi, Zahra Avazpoor, Erfan Berjisian, Amir Sarshin, Sajjad Rezaei, Raul Dominguez, Reid Reale, Emerson Franchini, Mohammad Hossein Samanipour, Majid S. Koozehchian, Mark E.T. Willems, Ramin Rafiei, Alireza Naderi

Research, Publications & Creative Work

: Studies have shown that nitrate (NO3 −)-rich beetroot juice (BJ) supplementation improves endurance and high-intensity intermittent exercise. The dose–response effects on taekwondo following BJ supplementation are yet to be determined. This study aimed to investigate two acute doses of 400 mg of NO3 − (BJ-400) and 800 mg of NO3 − (BJ-800) on taekwondo-specific performance and cognitive function tests compared with a placebo (PL) and control (CON) conditions. Eight trained male taekwondo athletes (age: 20 ± 4 years, height: 180 ± 2 cm, body mass: 64.8 ± 4.0 kg) completed four experimental trials using a randomized, double-blind placebo-controlled design: …

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Exploring Standardized Persons' Expectations For Practice-Readiness Among Student Pharmacists, Channing R. Ford, Kevin N. Astle, Kimberly B. Garza, Erika L. Kleppinger Jan 2021

Exploring Standardized Persons' Expectations For Practice-Readiness Among Student Pharmacists, Channing R. Ford, Kevin N. Astle, Kimberly B. Garza, Erika L. Kleppinger

Research, Publications & Creative Work

Although patient expectations and preferences for healthcare selection have been described in the literature, there are no studies exploring what qualities and behaviors standardized persons (SPs) identify for the practice-ready pharmacist. This manuscript explores those qualities and behaviors within an objective structured clinical examination (OSCE) to determine SP interest in having the student as their pharmacy provider. Methods: Using open-ended questions via a Qualtrics survey, SPs were asked to provide qualities and behaviors they associated with each of three practice-readiness rating levels. Using a constant comparative approach, the researchers coded the collected data over multiple stages to allow for authentic …

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Student Perceptions Of Authoring A Publication Stemming From A Course-Based Undergraduate Research Experience (Cure), Ashley N. Turner, Anil K. Challa, Katelyn M. Cooper Jan 2021

Student Perceptions Of Authoring A Publication Stemming From A Course-Based Undergraduate Research Experience (Cure), Ashley N. Turner, Anil K. Challa, Katelyn M. Cooper

Research, Publications & Creative Work

Course-based undergraduate research experiences (CUREs) engage students in authentic research experiences in a course format and can sometimes result in the publication of that research. However, little is known about student-author perceptions of CURE publications. In this study, we examined how students perceive they benefit from authoring a CURE publication and what they believe is required for authorship of a manuscript in a peer-reviewed journal. All 16 students who were enrolled in a molecular genetics CURE during their first year of college participated in semistructured interviews during their fourth year. At the time of the interviews, students had been authors …

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The Spinning Cube: An Algebraic Excursion, Lingguo Bu Jan 2021

The Spinning Cube: An Algebraic Excursion, Lingguo Bu

The Mathematics Enthusiast

What shapes do you get when you spin a cube on one of its vertices? This article explores the algebraic aspects of a spinning cube and establishes equations for the two cones and the hyperboloid using secondary school mathematics. Both the analysis and the verification take advantage of dynamic mathematics learning technologies.

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Indigenous Culture-Based School Mathematics In Action Part Ii: The Study’S Results: What Support Do Teachers Need?, Sharon Meyer, Glen Aikenhead Jan 2021

Indigenous Culture-Based School Mathematics In Action Part Ii: The Study’S Results: What Support Do Teachers Need?, Sharon Meyer, Glen Aikenhead

The Mathematics Enthusiast

This second part of two related articles reports the answers to the research question: What precise supports must be in place for Grades 5 to 12 teachers to enhance their mathematics classes in a sustainable way with Indigenous mathematizing and Indigenous worldview perspectives? In addition to various logistical supports, two other types of supports were identified: supports for learning and unlearning ways of perceiving the world generally and perceiving Western mathematics specifically. These needed supports came to light when we mentored the teachers. On the one hand, the co-researching teachers learned, or had already learned: (a) the plurality of mathematical …

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Impediments To Mathematical Creativity: Fixation And Flexibility In Proof Validation, Per Øystein Haavold Jan 2021

Impediments To Mathematical Creativity: Fixation And Flexibility In Proof Validation, Per Øystein Haavold

The Mathematics Enthusiast

Mathematical techniques in proof writing can be narrowed down to specific proof styles. Simply put, proofs can be direct or indirect- the latter using the Law of the Excluded Middle from logic as well as the axiom of Choice, to prove existence of mathematical objects. However, the thinking skills involved in writing indirect proofs are prone to errors, especially from novice proof writers such as prospective teachers. Creativity in mathematics entails the use of both direct and indirect approaches to determine the validity of a statement. In this article, I shed some light on this relationship, by reporting on some …

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The Academic Community’S Perceptions Of The Two-Column Proof, Jeffrey Pair, Susanne Strachota, Rashmi Singh Jan 2021

The Academic Community’S Perceptions Of The Two-Column Proof, Jeffrey Pair, Susanne Strachota, Rashmi Singh

The Mathematics Enthusiast

Our research team surveyed members of the mathematics education scholarly community to gain insight into the community’s perceptions of the two-column proof and its role in high school geometry. We created an email survey, which we sent to email addresses gathered from public lists of conference participants and speakers from recent mathematics education conferences. We asked study participants to describe the value of the two-column proof and discuss whether they would be in favor of eliminating it from the high school geometry curriculum. There was a wide range of diversity in the responses, and we present several themes that we …

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