Science and Technology Studies Commons^™

Bootstrapping For Estimating The Conservative Kill Ratio Of The Surrogate To The Pathogen For Use In Thermal Process Validation At The Industrial Scale, Arshpreet Kaur Khattra, Surabhi Wason, Kevin Thompson, Andy Mauromostakos, Jeyamkondan Subbiah, Jennifer C. Acuff

Food Science Faculty Publications and Presentations

A surrogate is commonly used for process validations. The industry often uses the target log cycle reduction for the test (LCR_Test) microorganism (surrogate) to be equal to the desired log cycle reduction for the target (LCR_Target) microorganism (pathogen). When the surrogate is too conservative with far greater resistance than the pathogen, the food may be overprocessed with quality and cost consequences. In aseptic processing, the Institute for Thermal Processing Specialists recommends using relative resistance (D_Target)/(D_Test) to calculate LCR_Test (product of LCR_Target and relative resistance). This method uses the mean values …

Evaluating An Integrated Science, Technology, Engineering, And Math/Computational Thinking Professional Development Program For Elementary Level Paraprofessional Educators, Aubrey A. Rogowski

All Graduate Theses and Dissertations, Fall 2023 to Present

For my dissertation, I looked at a training program one Utah school district used to teach paraprofessional educators science, technology, engineering, math, and computational thinking. Specifically, the program taught them about what computational thinking is and how they could use it when teaching science, technology, engineering, and math to students from kindergarten to sixth grade. While reviewing this program, I evaluated 1) The experiences the paraprofessionals had with the program, 2) Whether the paraprofessionals understood computational thinking, and 3) Whether the program prepared them to teach computational thinking to K-6 students.

I worked with eight paraprofessionals who participated in this …

Potential Consumer Response To The Healthy Symbol Proposed By The Us Food And Drug Administration, Jillian Hyink, Brandon R. Mcfadden, Brenna Ellison

Agricultural Economics and Agribusiness Faculty Publications and Presentations

The U.S. Food and Drug Administration (FDA) has proposed updates to the definition of “healthy,” including distinctions between types of sugar and fats and limits on added sugar, saturated fat, and sodium. To communicate the updated standards, the FDA is developing a Healthy symbol to display on food packages, which could reduce knowledge gaps by assisting U.S. consumers in meeting recommended nutritional guidelines. This study aimed to explore the potential for the label to increase consumers' ability to correctly identify a food product that met the FDA's criteria for a healthy symbol. To complete the study objective, 1018 adults were …

Agricultural Producer And Non-Producer Perceptions Of Crop Residue Burning: A Focus On Arkansas, Jillian Hyink, Ryan Bresnahan, Brandon R. Mcfadden, Aaron M. Shew, James Mitchell

Agricultural Economics and Agribusiness Faculty Publications and Presentations

Agricultural producers adopt management practices that positively and negatively affect the lives of non-producers in their communities. CRB has important environmental and human health implications, and local non-producers might have different perceptions and attitudes from agricultural producers about crop residue burning. In this paper, we use a multi-stakeholder approach to study the issue of crop residue burning (CRB). Survey data were collected from a sample of producers in Arkansas who burn crop residue and a sample of non-producers who resided in the same counties as the producers. Non-producers may not be willing to compensate producers at an amount that would …

Longhand Versus Laptop Note Taking And Lecture Rate Influence, Junrong Lu

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

Most college students take lecture notes to prepare for tests. With technology development, more students are recording notes on laptops rather than writing them longhand. Previous studies comparing laptop and longhand note taking mediums yielded mixed results, highlighting the need to identify influencing factors. The present study investigated a potential factor, lecture rate, through two experiments. Experiment 1 examined whether lecture rate differentially influences longhand and laptop note taking without note review. Experiment 2 investigated lecture rate effects before and after note review. Dependent measures pertained to various note-taking indices (e.g., verbatim overlap with lecture transcripts and numbers of words, …

Insights Into Low-Cost Pm Sensors Using Size-Resolved Scattering Intensity Of Cooking Aerosols In A Test House, Alok Kumar Thakur, Jonathan D. Gingrich, Marina E. Vance, Sameer Patel

Faculty Work Comprehensive List

Spatio-temporal particulate matter (PM) measurements are critical to understanding emission profiles to develop effective mitigation strategies. However, high-resolution spatio-temporal measurements using research-grade instruments are cost-prohibitive, making low-cost sensors (LCS) a promising alternative. LCS measures particle light scattering intensity (Isc) and converts it to mass and number concentrations. Such measurements are influenced by particles’ physico-optical properties, which make LCS appropriate for measuring PM with similar properties to those used for calibration. This work evaluates the performance of an LCS (PurpleAir) against reference instruments (SMPS þ APS) during cooking experiments per-formed in a test house where PM0.3/PM10 as high as 90% was …

Learning To Teach About Climate Justice And Social Justice In Science Methods, Mindy J. Chappell

Northwest Journal of Teacher Education

In November, the Editors of NWJTE sat down for a conversation with Dr. Mindy J. Chappell, a Science Teacher Educator in the College of Education at Portland State University. Dr. Chappell’s passions include developing teachers who are prepared to disrupt normative science ideologies and provide young people with science instruction that encourages and empowers them to be leaders in their communities. She engages in arts-based educational science research through the methodology of Ethnodance (a term she coined). She places young people and their lived experiences at the heart of her work.

The Drivers Of Academic Novelty In Digital Capitalism: Job Insecurity, Mental Illness And Time Poverty, Adalberto Fernandes

Emancipations: A Journal of Critical Social Analysis

The present-day digital capitalist academy increases novel academic results by leveraging factors such as precarious academic employment, time poverty, and mental illness. This paradigm reveals a confluence that turns seemingly negative aspects into productive elements. The consequence of this hypothesis is that by enhancing work, time and mental health conditions, there may be a reduction in the number of novelties, with an enhancement of academic's role as producers of truth.

Fiction Book Reviews

The Christian Librarian

No abstract provided.

A Design Science Approach To Investigating Decentralized Identity Technology, Janelle Krupicka

Cybersecurity Undergraduate Research Showcase

The internet needs secure forms of identity authentication to function properly, but identity authentication is not a core part of the internet’s architecture. Instead, approaches to identity verification vary, often using centralized stores of identity information that are targets of cyber attacks. Decentralized identity is a secure way to manage identity online that puts users’ identities in their own hands and that has the potential to become a core part of cybersecurity. However, decentralized identity technology is new and continually evolving, which makes implementing this technology in an organizational setting challenging. This paper suggests that, in the future, decentralized identity …

Profiling Cybercriminals: Behavioral Analysis And Motivations Behind Cybercrime Activities, A'Shya Latrice Reynolds

Cybersecurity Undergraduate Research Showcase

The study of cybercriminal behavior and motivations is crucial for understanding and combating the evolving landscape of digital crime. This paper delves into the intricate realm of cybercrime profiling, employing a multidisciplinary approach to dissect the behavioral patterns and underlying motivations of cybercriminals. Drawing from psychology, sociology, and criminology, the research examines the intricate interplay of individual traits, social dynamics, and technological factors that shape cybercriminal activities.

Through analysis of case studies and research, this paper uncovers the diverse range of motivations driving individuals towards engaging in cybercrime. From financial gain and ideological extremism to thrill-seeking and revenge, cybercriminals exhibit …

The Ethical And Legal Implications Of Iot Data In Business Organizations, Kennedy Bellamy

Cybersecurity Undergraduate Research Showcase

The Internet of Things (IoT) has transformed how our day to day lives by implementing and evolving technology that allows data to be exchanged between interconnected devices without the need for human involvement. This paper investigates the implications of IoT expansion and development in corporate organizations, focusing on both the opportunities and challenges it brings. IoT encompasses a wide range of data kinds, from sensor readings to user interactions, across industries such as manufacturing, healthcare, and retail. However, greater connection raises ethical and legal challenges, especially over data privacy, ownership, and control. Potential breaches of privacy and illegal data access …

Smoothing Out Smart Tech’S Rough Edges: Imperfect Automation And The Human Fix, Christian Katzenbach, Christian Pentzold, Paloma Viejo Otero

Human-Machine Communication

In this article, we take issue with an idea of autonomous and efficient automation that is upheld through the paradoxical conjunction of a flawed vision of the technological fix and the under-acknowledged human work required to fill in the gaps between machines and users. Our argument is based on two case studies that sit at opposite tails of automation processes: the front end of self-service checkouts and the back end of content moderation. This juxtaposition allows us to surface three themes on how the hype around automation is enabled by human interventions: the ad-hoc sociality in situated practices of automation, …

Laughter And Effective Presidential Leadership: A Case Study Of Ronald Reagan As The 'Great Communicator', Patrick A. Stewart, Reagan G. Dye, Carl Senior

Political Science Faculty Publications and Presentations

Former United States President Ronald Reagan’s use of media and his charismatic connection with viewers earned him the moniker “the great communicator”. One aspect of his charisma, the influence of elicited laughter, during a highly critical 5-minute news story by CBS reporter Leslie Stahl during the 1984 US presidential election is examined here. Two experiments examining the effects of audience laughter on perceptions of charismatic leadership are reported. In the first experiment the effects of audience laughter in response to Reagan’s comments were investigated. Here, Reagan’s perceived warmth as an effective leader significantly diminished when strong laughter is removed, whereas …

Continuous Mowing Differentially Affects Floral Defenses In The Noxious And Invasive Weed Solanum Elaeagnifolium In Its Native Range, Alejandro Vasquez, Alexa Alaniz, Robert Dearth, Rupesh Kariyat

Entomology and Plant Pathology Faculty Publications and Presentations

In weeds, disturbance has been found to affect life history traits and mediate trophic interactions. In urban landscapes, mowing is an important disturbance, and we previously showed that continuous mowing leads to enhanced fitness and defense traits in Solanum elaeagnifolium, Silverleaf Nightshade (SLN). However, most studies have been focused on foliar defenses, ignoring floral defenses. In this study we examined whether continuous mowing affected floral defenses in SLN using mowed and unmowed populations in South Texas, their native range. We found flowers of mowed SLN plants larger but lighter than unmowed plants. Additionally, flowers on plants that were mowed …

Towards Learning Excellence In Universities: A Critical Review Of Information And Communication Technology Policies In Education In Kenya, Caroline Kiarie, Nicola-Jane Jones

Graduate School of Media and Communications

The current reality is that technological advancement has shaped how learning is being conducted in education. Communication technology has been embraced in education by both educators and learners. However, the embracement has been slow, and this was experienced during the Coronavirus (Covid-19) pandemic, when teaching and learning had to shift and relied heavily on communication technology, but in actuality educational institutions were not ready. The virus continues to linger on and has served as a wake-up call for the education sector. This therefore makes Information and Communication Technology (ICT) an essential component in education today, not only to be implemented …

Nonprofits Should Adopt A User-Centric Change Model To Scale Corporate Environmental Action Faster, Doug Miller

Journal of Nonprofit Innovation

Pollution levels and ecosystem degradation continue to worsen, suggesting the insufficiency of current approaches to reverse these problematic trends. For environmental nonprofits, the current theory of change revolves around developing techno-economic analysis about environmental problems and available solutions, building public awareness around this analysis, and motivating decision makers to set goals. Given present environmental realities and the limited success of their current theory of change, environmental nonprofits should transform how they execute their work, what they produce, and how they coordinate with each other. Instead, nonprofits should begin putting the user—business decision makers as well as policymakers—front and center as …

Top Ten Scientific Advances In China, 2023

Bulletin of Chinese Academy of Sciences (Chinese Version)

No abstract provided.

The Role Of Osint In Criminal Investigations: Leveraging Open-Source Data To Combat Cybercrime And Organized Criminal Activities, Azariah Vaughan

Cybersecurity Undergraduate Research Showcase

In today's modern age driven by digital innovations, the widespread adoption of technology has transformed criminal activities, leading to the emergence of cybercrime as a significant challenge for law enforcement agencies globally. Cybercrime acts have left a considerable dent on criminal activities and nowadays that we are halfway into the subsequent technological era stands as one of the most crucial issues for law enforcement agencies all around the globe. The aim of this work is to discuss the relationship between cybercrime and organized crime and the importance of OSINT within criminal investigations in supporting law enforcement itself. Particularly, due to …

Consumer Attitudes Towards Product Safety: Physical Consumer Goods Vs. Internet Connected Products, Noreen Y. Whysel, Lisa Levasseur

Publications and Research

2 Introduction In 2023, Internet Safety Labs (ISL) received a grant from the Internet Society Foundation to, among other things, conduct a quantitative study of consumers’ attitudes and awareness of product safety of internet-connected, software products. The study explored participants’ thoughts and opinions regarding the types of products they considered safe or unsafe to use and why. The researchers looked at consumer attitudes about the safety of consumer goods like cars, clothing, toys and beauty products and compared them to attitudes around the safety of internet- connected products, like websites, apps and smart home products. The research also explored consumer’s …