Digital Commons Network^™

Geochronology Of Senèze, Eric Delson, Sébastien Nomade, Sevket Sen, Evelyne Debard, Jean-François Pastre, Jean-Jacques Bahain, Qingfeng Shao, Christophe Falguères

Publications and Research

The age of the Senèze mammalian fauna has been discussed since it was first reported in 1892. 40Ar/39Ar ages reported by Nomade et al. (2014) and recalculated here to agree with current standards placed the deposits between 2.20 and 2.07 Ma. Paleomagnetic data collected in 2001 and 2004 help to narrow the age range, especially of the levels yielding fossils in 2001–2006. In the western sector, fossils can be securely dated between 2.10 and 2.08 Ma, while in the southeastern sector, they are slightly older, between 2.20 and 2.18 Ma. Senèze is one of the few later Cenozoic European sites …

Teaching Ai Literacy Through Science Studies, Rhetoric, And Ethical Reasoning, Michael J. Klein, Philip L. Frana

Journal of the National Collegiate Honors Council Online Archive

Building on the idea of productive troublemaking, this essay presents a team-taught interdisciplinary honors course that integrates science and technology studies, rhetorical analysis, ethical reasoning, and artificial intelligence policy. Rather than framing AI as a threat, this course invites honors students to experiment with AI technologies and develop competencies by analyzing AI as a social and subjectivity-shaping phenomenon—writing policy briefs, producing rhetorical analyses of science fiction, and completing self-paced AI literacy modules. Honors education is uniquely positioned to model responsible and human-centered uses of intelligent systems, thereby cultivating graduates who can both use and critically interrogate the AI tools that …

Integrating Computational Thinking Into K–12 Classroom Instruction, Jorge Valenzuela

STEMPS Theses & Dissertations

In 2016, legislation mandated the integration of computer science (CS) and computational thinking (CT) skills across K–12 instruction in the Commonwealth of Virginia. CT integration is also a focus in many schools throughout the United States. Educators must understand CT/CS core concepts and practices, looking for practical ways to integrate CT across the K–12 curricula. To address this, the current study was conducted. The study compares the effects of the Jigsaw technique and teacher-directed instruction on the participants by surveying their self-efficacy for integrating CT in their teaching. This study uses a pre- and post-test design, and data collection took …

Challenges In Artisanal Small-Scale Gold Mining: Perspectives And Transformations To Sustainability Along Br-163 In Brazil, Carlos Henrique Xavier Araujo, Irfan Ullah, Giorgio De Tomi

Journal of Sustainable Mining

Artisanal Small-scale Gold Mining (ASGM) is a sector beset with unique and complex challenges. Recent literature highlights the growing acknowledgment of the critical need for reforms in how the ASGM industry interacts with communities and the environment. Discussions about sustainable transformations go beyond theoretical and conceptual borders, attempting to understand how local transformative events might reflect global developments. Thus, the goal of this article is to give an analysis from the perspective of the actors participating in artisanal gold mining activities. A survey was carried out along BR-163, which runs from Sinop (Mato Grosso) to Santarém (Pará). Fifty-five (55) interviews …

A Feedback-Guided Analysis Of Environmental, Health And Socio-Economic Factors Affecting Drivers’ Willingness To Shift To E-Jeepneys, Charlotte Kendra Gotangco Gonzales, Katrina Abenojar, Carlos Rosauro Manalo, Melliza Templonuevo Cruz, Maria Obiminda L. Cambaliza, James Bernard Simpas, Imee Delos Reyes, John Wong, Bernell Go, Krizelle Cleo Fowler, Rene Marlon Panti, Emma E. Porio, Jean Jardeleza Mijares

Environmental Science Faculty Publications

The Jeepney Modernization Program involves the replacement of traditional jeepneys with more efficient alternatives, including modern enclosed electric vehicles, alongside operational improvements to the public transportation system. This study aims to assess the environmental, health and socio-economic factors impacting drivers’ willingness to shift to e-jeepneys. Feedback-Guided Analysis was used as a framework for designing an interdisciplinary approach towards understanding the decision-making paradigms of drivers plying a specific route in Quezon City, Metro Manila. Measurements of drivers’ exposure to PM2.5 and associated health parameters were complemented by key informant interviews delving into income, expenses, valuation of benefits and decision-making paradigms. A …

Alfred Russel Wallace Notes 35. Natural Selection By Evolution., Charles H. Smith

Faculty/Staff Personal Papers

Alfred Russel Wallace (1823?1913) is remembered, with Charles Darwin, as the co-originator of the concept of evolution by natural selection. But Wallace’s framing of the idea increasingly became one in which natural selection itself was regarded as a law of nature, not a theory per se.

Managing Beyond Water: Utilizing Community Well-Being Interviews In The Upper Yakima River Basin, Usa, For Climate Change Adaptation, Rebecca Gustine, Alexander Theophilus, Courtney G. Flint, Jessica D. Ulrich-Schad, Emma Epperson, Claudia Mendez Wright, Jennifer C. Adam

Sociology, Social Work and Anthropology Student Research

In contemporary, natural resources dependent and specialized communities, community well-being is connected to the environment. Understanding the local connections between community well-being and the environment can provide a more complete understanding of how to manage social-ecological systems and promote community resilience. Herein, we combine semi-structured community well-being interviews with hydrologic modeling using the variable infiltration capacity (VIC) model to suggest climate adaptation pathways for a diverse set of community interests. We found that community well-being across the Yakima River Basin was connected to water, snow, and the environment through recreation opportunities, aesthetics, livelihoods, and having clean water and air. Additionally, …

Luminescence Dating And Its Application To Anthropogenic Sedimentary Sequences:Tepecik-Çiftlik Prehistoric Settlement, Eren Şahi̇ner, Mehmet Korhan Erturaç

Turkish Journal of Earth Sciences

Luminescence dating is a fundamental technique in the field of earth sciences research, offering a reliable method fordetermining the age of sediments and artifacts. Applications of luminescence dating in archaeology include the dating of ancienthabitation sites, burial mounds, and artifacts such as pottery. This provides a chronological framework for understanding humanactivities and environmental changes over millennia. The capacity of luminescence dating to ascertain the age of events spanning a fewdecades to several hundred thousand years renders it an indispensable instrument for the construction of timelines and interpretationof the past. This study presents a concise overview of the various stages of …

What Do Utahns Think About Global Warming And Climate Change?, Scott Hotaling, Kendall Becker, Lendel K. Narine, Jessica Ulrich-Schad, Roslynn Mccann, Peter D. Howe

All Current Publications

In Utah, there is widespread consensus that global warming is happening, and the strength of this consensus has been steadily rising since 2010. Over the last 14 years, some public opinion metrics have risen dramatically while others have been largely stable. The degree of climate impacts in Utah will depend on residents’ perceptions of climate change and support for implementing policies to help the state adapt to warmer temperatures, more extreme weather events, and other associated changes. In this fact sheet, we integrate multiple data sources to summarize the status and trends of Utahns’ opinions on climate change.

Ethnomathematics Projects For Projective Geometry In Distance Learning, Wen-Haw Chen, Ja'faruddin Arsyad Ide

Journal of Humanistic Mathematics

This article reports on an ethnomathematics project we developed and implemented in an online learning environment to connect with students’ cultural backgrounds and to highlight the links between their environment, culture, and mathematics. The project is based on Simple House Theory, a framework that involves the application of projective geometry in the design of traditional houses and building numbers. Our results show that this approach fostered active participation and engagement despite the standard constraints and challenges of distance learning.

Mineralogy And Geochemistry Of Copper Slags From The Roman Imperial Period:Implications For The Type And Technology Of Smelting Furnaces Indereköy Ancient Copper Mine (Thrace Region, Türkiye), Yi̇ği̇t Kurt

Turkish Journal of Earth Sciences

The Strandja Mountains in the northwestern part of Turkey host porphyry and skarn type mineralizations and ancient slag heaps, which are the residues of ancient metallurgical processes. Ancient smelting furnaces were established near the skarn type mineralization zones and the ores were processed. Charcoal were used as fuel in these furnaces. Tenorite mineral was detected in the mineralogical analyses of the slags by XRD and it was determined that the furnaces were heated above 1000 °C. When the distribution of SiO2 in the slags was examined according to different end members, it was determined that the melting temperatures were in …

Dunbar’S Number In Motion: Agent-Based Simulations Of Friendship Formation, Christopher R. Cooke, Cameron D. Lutz

Northeast Journal of Complex Systems (NEJCS)

By contrasting Lévy flight and random walk strategies in simulated agents, we discern the effect of movement behavior on the total duration of social interactions. Our agent-based simulation results approximate empirically observed Dunbar social circle formation using simple behavioral rules of interaction and compatibility to mimic exogenous attribute-based friendship formation. We simulate the complexities of social interactions among agents with unique attributes and a time budget for social engagement over a one-year period. Two distinct simulations were conducted to evaluate the behavioral contributions of Lévy flight and random walk movement patterns on cumulative interaction duration and the formation of Dunbar …

Autoethnographic Action Research As A Contemplative Practice: Awareness And Transformation Of Inner And Outer Selves, Jiju Varghese, Bal Chandra Luitel, Niroj Dahal

The Qualitative Report

Contemplation as a spiritual practice has taken various forms across different religious traditions and regions worldwide. Over the years, various contemplative practices have evolved and become popular even outside religious traditions to promote the well-being of all for inner and outer selves’ transformation. In education, many scholars worldwide have expounded on the benefits of contemplative practices in the classroom for students and teachers. Contemplative practices have penetrated research practices in the form of contemplative inquiry considering performative, philosophical, and artistic transformations, where researchers enter into a deep, thoughtful, and reflective introspective journey to see the connection between what is seen …

Perspectivism And Wicked Problems: Patterns In The Discovery Process Of Leibniz, Bohr, And Turing, Ernesto Diaz

Natural Sciences and Mathematics | Faculty Authored Dissertations and Theses

This research investigates fundamental patterns in how transformative scientific knowledge emerges and becomes established, examining three pivotal cases: Leibniz's development of calculus, Bohr's formulation of complementarity, and Turing's conceptualisation of computation and artificial intelligence. The study introduces the o-é-c model (Ouverture Ontologique - Épistémè Socialisante - Connaissance Éclairante) to explain how individual insights become integrated into collective knowledge through structured phases of development. Drawing on Minsky's conception of knowledge as mental models for problem-solving and Longino's social epistemology, the research demonstrates how wicked problems—those that resist formulation within existing frameworks—catalyse the creation of new knowledge domains. The model reveals how …

Examining Short Term Drainage Impacts To Soil Health In Hydric And Non-Hydric Soils Of Waseca County, Minnesota, Ely Hartl

All Graduate Theses, Dissertations, and Other Capstone Projects

Subsurface drainage is implemented throughout the Midwest United States to remove excess moisture from soil to enhance crop growth. Hydric soils are ubiquitous throughout Minnesota and are commonly drained due to their historically saturated conditions. Changing a soil's hydrology can impact its formation and properties. The alteration of physical, biological, and chemical soil properties can occur to both hydric and non-hydric soils, impacting overall soil health. The purpose of this study is to examine the short-term effects of tile drainage on the soil health of hydric and non-hydric soils in southern Minnesota. Research methods include: 1) collect soil-sediment cores to …

The Sustainability Of The Outdoor Recreation Industry: Studied Through Mountaineering In Teton County, Wy, Samantha Olstein

Student Research and Publications

No abstract provided.

Microbial Degradation Of Kelp-Derived Dissolved Organic Matter In The Context Of Carbon Sequestration, Sophia N. Riazi-Sekowski

Honors Theses

Kelp, or brown algae, is an emerging form of ocean-based biological carbon dioxide removal, converting dissolved CO2 into organic molecules via photosynthesis. The export of detritus and dissolved organic carbon (DOC) from coastal beds to beyond the continental shelf contributes to carbon sequestration, especially through the microbial production of refractory DOC (RDOC). The influence of microbial degradation on kelp-derived DOC is not yet well understood, contributing to inconsistency in carbon sequestration estimates. This study utilizes dark bottle incubations of both blades and holdfasts from two farmed kelp species in the Gulf of Maine — Saccharina latissima and Saccharina angustissima — …

Identifying Intangible And Biocultural Heritage Elements Toward Environmental Understanding: Engaging Stakeholders Through Art, Martha B. Lerski

Publications and Research

Grounded in a case study in Barbuda in the Caribbean, this research examines sustainability from the perspective of what arts and heritage can contribute to community engagement and local and broader understandings about the environment. This article documents a growing body of literature recognizing the role of arts and culture, including local knowledge and traditional ecological knowledge (TEK), in climate change endeavors. Art and TEK present expansive world views. Contextual information situates research done on the island of Barbuda pre- and post-Hurricane Irma. Visual arts workshops engaged community members in mixed methods research. Results documented cultural elements, particularly intangible and …

Program And Proceedings: Nebraska Academy Of Sciences 1880–2025, 145th Anniversary Year, One Hundred-Thirty-Fifth Annual Meeting

Nebraska Academy of Sciences: Programs and Proceedings

Program

Aeronautics and Space Science

Biological and Medical Sciences

Biology

Chemistry

Earth Sciences

Science Education

Anthropology

Applied Science and Technology

Physics and Engineering

Forensic Sciences

Ecology, Sustainability, and Environmental Science

Maiben Lecture: Mary Ann Vinton, "State of the Academy"

Friends of Science Awards: David Crouse and Daniel Sitzman

Macro-Ergonomic And Organizational Behavior Mapping For Organic Waste Management Using Hofstede Culture In Semarang, Indonesia : Pca & Sem Analysis Using Smart Pls, Ratih Setyaningrum, Sahana Pramukti, Ravindran Balasubramani

ASEAN Journal on Science and Technology for Development

Waste management has a very close and complex relationship with community behavior and culture . This relationship is two-way: community culture influences how waste is managed, and conversely, waste management practices can shape or change culture. This study to assess the organizational behavior related to organic waste management. Employing a quantitative methodology, data were gathered using the Hofstede Values Survey Module 13 (VSM 13) - closed questionnaire, with 109 Semarang city Community participants responding via a Google Form. The collected data were analyzed utilizing Hofstede's prescribed formula. The next stage is PCA (Principal Component Analysis) and SEM (Structural Equation Modeling) …

Significado Neutrosófico: Partes Comunes De Cosas Poco Comunes Y Partes Poco Comunes De Cosas Comunes, Florentin Smarandache

Branch Mathematics and Statistics Faculty and Staff Publications

Esta investigación explora la Neutrosofía, un enfoque filosófico que se centra en la identificación de elementos comunes entre conceptos opuestos y en el análisis de las diferencias entre conceptos semejantes. En este contexto, se estudian las Partes Comunes a Cosas No Comunes, que se manifiestan cuando elementos como y < antiA > comparten aspectos en su intersección, y las Partes No Comunes a Cosas Comunes, donde conceptos iguales como y difieren al exhibir elementos únicos. Este análisis permite comprender mejor la neutralidad e indeterminación representada por < neutA > y < neutB >, situados entre sus respectivos opuestos. La investigación abarca diversas áreas como la Dialéctica, el Yin …

Fire History, Ecological History, And Historical Human-Environment Interactions In The Northern Great Plains, James Victor Benes

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

This dissertation explores the spatiotemporal signatures of fire in North American grassland ecosystems. In three chapters, I explore different aspects of fire history in the northern Great Plains. Chapter 1 is an introduction. Chapter 2 focuses on the Euro-American Settlement Period (ca. 1850–1950 C.E.). Fire histories from six different lakes in the Nebraska Sandhills are compared with two periods of historic drought and the establishment of United States Post Offices. Five of the six records show increased levels of biomass burning during the initial phases of Euro-American Settlement. Chapter 3 is a long-term (ca. 15,000 years), high-resolution fire history and …

World As Other, World As Self: Beyond Dualism In Environmental Narratives, Tamara Wallace Ramirez

CGU Theses & Dissertations

Stories of place matter to the way we live with the Earth. A dualistic perspective that pits "culture" against "nature" enables environmental degradation on small and large scales. Conversely, understanding humans and nonhumans as entwined allows us to think and act differently with our planetary community. This view entails integrating the "self" and the "other." Instead of being antithetical to the other, the self arises through engagement with others, human and nonhuman. Understanding our mutuality with others while respecting their alterity and agency fosters caring and dedication. Our sense of connection with the more-than-human world inspires our compassion. However, such …

Mangroves: A Lesson On Modeling Changing Shorelines, Willa Skye

ENGS 15.11: Design and Education

This lesson is an overview of storm barriers, specifically mangroves and how they maintain shorelines. It is meant to offer a visual experience of coastline protection and provide a background for deeper understanding about intertidal zones and their conservation. Students will spend time creating a solution to a flooding problem by making a mock coast and storm barrier. To wrap-up the lesson, students will pair up, then reflect on their model and then individually write or draw their takeaways.

From Cyclones To Cybersecurity: A Call For Convergence In Risk And Crisis Communications Research, Ann Marie Reinhold, Ross J. Gore, Barry Ezell, Clemente I. Izurieta, Elizabeth A. Shanahan

VMASC Publications

Effective risk and crisis communication can improve health and safety and reduce harmful effects of hazards and disasters. A robust body of literature investigates mechanisms for improving risk and crisis communication. While effective risk and crisis communication strategies are equally desired across different hazard types (e.g., natural hazards, cyber security), the extent to which risk and crisis communication experts utilize the “lessons learned” from scientific domains outside their own is suspect. Therefore, we hypothesized that risk and crisis communication research is siloed according to academic disciplines at the detriment to the advancement of the field of risk communications research writ …

Igniting Change: Assessing Language Access Gaps For Spanish-Speaking Communities In Wildfire Preparedness Resources In Yakima County, Washington, Rebecca N. Mitre

All Master's Theses

Limited-English proficiency (LEP) individuals across the United States face barriers in accessing information and other resources relating to natural hazard resources, particularly in areas prone to wildfire. In the Pacific Northwest, wildfires are predicted to increase in frequency, severity, and intensity and may also increase the social and economic vulnerability of LEP communities. The 2023 wildfire season underscored how economic, public health, and social impacts disproportionately impact minorities and socially vulnerable communities. This research investigates the inclusion of LEP communities in the development and dissemination of local wildfire resources in Yakima County, using the disaster management cycle as an analytical …

Food Sovereignty Among Migrant Farmworkers: The Role Of Agrobiodiversity For Autonomy And Resistance In A Mexican Coffee Plantation, Estelí Jiménez-Soto, Sanya Cowal, April Lopez

School of Geosciences Faculty and Staff Publications

Coffee agroecosystems represent the economic base for thousands of small growers and agricultural workers, as well as a significant proportion of many regional economies in Latin America. Every year, the production of coffee in this region attracts a great number of laborers and their families, particularly during the harvest season. Despite being essential workers in the food system, agricultural workers continue to be one of the most marginalized actors in the coffee production chain. Even with an environment of precarity, agricultural workers exercise their autonomy and food sovereignty—the process by which agricultural workers, in this case, define their food system …

Match Accuracy Of Burned Teeth: A Pilot Study Of Allied Dental Professionals, Brenda T. Bradshaw, Marsha A. Voelker, Samantha C. Vest, Sinjini Sikdar

Dental Hygiene Faculty Publications

Purpose: The purpose of this pilot study was to assess allied dental professionals' match accuracy of burned teeth; a skill required by disaster victim identification (DVI) team members.

Methods: This cross-sectional study used a convenience sample of registered dental hygienists (RDH) (n=15) and dental assistants (DA) (n=15) to assess their match accuracy of burned teeth with simulated antemortem (AM) and postmortem (PM) images. Fifteen human teeth were heated at 400°C for 15 minutes. Prior to and following heat alteration, each tooth was photographed and radiographed. Images were presented to participants in randomized order, and they were instructed to correctly match …

Spatial Vulnerability Towards Flooding And Mitigation Of Three Coastal Cities: Charleston, South Carolina | Passaic City, New Jersey| Virginia Beach, Virginia, Kory Abbott

All Graduate Theses, Dissertations, and Other Capstone Projects

This meta-analysis investigates the impact of flooding on three coastal communities along the Atlantic Coast: Charleston, South Carolina; Passaic City, New Jersey; and Virginia Beach, Virginia. One goal of this paper is to determine the adequacy or inadequacy in the flood mitigation responses of these communities so that future actions can be taken to improve flood mitigation measures. Another goal is to consider whether the cities experience environmental injustice in terms of flooding mitigation. This paper draws from governmental documents, news reports, local experiences, updated storm management systems, and scholarly articles. The methodology used in this meta-analysis is as follows: …

Geochronology And Geomorphology Of The Brule Spillway Of Glacial Lake Duluth, Madeline Josephine Laaksonen

All Graduate Theses, Dissertations, and Other Capstone Projects

During the Late Pleistocene and Early Holocene, a series of dyssynchronous advances and retreats resulted in the evolution of the Upper St. Croix River Valley. Proglacial lakes forming at the margins of the retreating ice within the Lake Superior Basin and subsequent multiple drainage events through the Brule Spillway have also drastically shaped the landscape. As a result, the Brule Spillway and broader St. Croix River valley presents an important case study to spillover processes occurring in proglacial landscapes and the reorganization of regional drainage networks and creation of a new hydrogeomorphic regime. While prior literature on the Spillway exists, …