Digital Commons Network^™

Residual Optical Absorption From Native Defects In Cdsip2 Crystals, Timothy D. Gustafson, Nancy C. Giles, Elizabeth M. Scherrer, Kevin T. Zawilski, Peter G. Schunemann, Kent L. Averett, Jonathan E. Slagle, Larry E. Halliburton

Faculty Publications

CdSiP₂ crystals are used in optical parametric oscillators to produce tunable output in the mid-infrared. As expected, the performance of the OPOs is adversely affected by residual optical absorption from native defects that are unintentionally present in the crystals. Electron paramagnetic resonance (EPR) identifies these native defects. Singly ionized silicon vacancies (V^-_Si) are responsible for broad optical absorption bands peaking near 800, 1033, and 1907 nm. A fourth absorption band, peaking near 630 nm, does not involve silicon vacancies. Exposure to 1064 nm light when the temperature of the CdSiP₂ crystal is near 80K converts …

The Width Of Magnetic Ejecta Measured Near 1 Au: Lessons From Stereo-A Measurements In 2021–2022, Noé Lugaz, Bin Zhuang, Camilla Scolini, Nada Al-Haddad, Charles J. Farrugia, Réka M. Winslow, Florian Regnault, Christian Möstl, Emma E. Davies, Antoinette B. Galvin

Faculty Publications

Coronal mass ejections (CMEs) are large-scale eruptions with a typical radial size at 1 au of 0.21 au but their angular width in interplanetary space is still mostly unknown, especially for the magnetic ejecta (ME) part of the CME. We take advantage of STEREO-A angular separation of 20°–60° from the Sun–Earth line from 2020 October to 2022 August, and perform a two-part study to constrain the angular width of MEs in the ecliptic plane: (a) we study all CMEs that are observed remotely to propagate between the Sun–STEREO-A and the Sun–Earth lines and determine how many impact one or both …

The Width Of Magnetic Ejecta Measured Near 1 Au: Lessons From Stereo-A Measurements In 2021–2022, Noé Lugaz, Bin Zhuang, Camilla Scolini, Nada Al-Haddad, Charles J. Farrugia, Réka M. Winslow, Florian Regnault, Christian Möstl, Emma E. Davies, Antoinette B. Galvin

Faculty Publications

Coronal mass ejections (CMEs) are large-scale eruptions with a typical radial size at 1 au of 0.21 au but their angular width in interplanetary space is still mostly unknown, especially for the magnetic ejecta (ME) part of the CME. We take advantage of STEREO-A angular separation of 20°–60° from the Sun–Earth line from 2020 October to 2022 August, and perform a two-part study to constrain the angular width of MEs in the ecliptic plane: (a) we study all CMEs that are observed remotely to propagate between the Sun–STEREO-A and the Sun–Earth lines and determine how many impact one or both …

Sovereignty And Dependence In The American Empire: Native Nations, Territories, And Overseas Colonies, Alvin Padilla-Babilonia

Faculty Publications

What justifies plenary powers over Native nations, U.S. territories, and overseas colonies? One answer is the text of the Constitution: the Indian Commerce Clause or the Territorial Clause. Another answer is sovereignty under international law. In this Article, I argue that these legalistic explanations overlook a third answer: that political and judicial actors justified plenary powers based on the colonial notion that these so-called dependent peoples were incapable of self- government.

Members of Congress, presidents, federal judges, and territorial governors reconciled republicanism and colonialism in the American empire by constituting Native nations, the territories, and the overseas colonies as dependent …

Report From The Adventist Digital Library And Seventh-Day Adventist Periodical & Obituary Index, Katherine Van Arsdale

Faculty Publications

No abstract provided.

Ears To Hear: How To Study The Bible And Let Scripture Speak For Itself, Félix H. Cortez

Faculty Publications

No abstract provided.

Augustin And Daniel Bourdeau: Lifelong Evangelists And Missionaries, Denis Fortin

Faculty Publications

No abstract provided.

The Personhood And Divinity Of The Holy Spirit, John C. Peckham

Faculty Publications

No abstract provided.

Is The Trinity Biblical?, John C. Peckham

Faculty Publications

No abstract provided.

Canceling Appellate Precedent, Michael A. Risch, Lisa A. Tucker

Faculty Publications

In recent years, since soon after Justice Amy Coney Barrett assumed her seat on the United States Supreme Court, the Court has erased more than thirteen politically and legally significant opinions written by the federal appeals courts. In deciding to vacate rather than simply deny certiorari, the Court has eliminated—with one sentence orders that offer no explanation—fully briefed, argued, and reasoned opinions on issues such as abortion, the Voting Rights Act, President Trump’s travel ban, and the Emoluments Clause. Consequently, progressive victories in those areas no longer stand.

The Supreme Court used its power to “vacate” lower court rulings, which …

Natural Language Processing Analysis Of Online Reviews For Small Business: Extracting Insight From Small Corpora, Benjamin J. Mccloskey, Phillip M. Lacasse, Bruce A. Cox

Faculty Publications

Receiving and acting on customer input is essential to sustaining and growing any service organization, particularly a small family business whose livelihood depends on strong relationships with its customers. The competitive advantage offered by advanced analytical approaches for supporting decisions is not trivial, and enterprises across virtually all domains of society are investing heavily in this emerging discipline. Natural Language Processing (NLP) is a subset of computer science that employs computational approaches to analyze human language; it is effective at extracting insight from text data but frequently requires large corpora to train its models, in the scale of thousands or …

The Nitrogen Footprint Of Ukraine: Why Personal Consumption Matters, Sergiy Medinets, Allison M. Leach, Tetiana Pavlik, Volodymyr Medinets, James N. Galloway

Faculty Publications

Unintended reactive nitrogen (N) losses from agriculture, energy and transportation pose significant environmental hazards, including eutrophication, acidification, water and air pollution, biodiversity loss, human health risks and climate change. The concept of a nitrogen footprint (NF) emerges as a pivotal metric, reflecting potential N losses in the entire production-consumption chain of goods and services used by an individual within a defined timeframe.In a pioneering assessment of per capita NF in Ukraine, key factors, such as the food production chain, consumption patterns, connection to wastewater treatment (WWT) system and the efficacy of WWT facilities, were identified as critical components. Addressing specific …

Algunas Precisiones Sobre La ‘Vocalización’ De Las Líquidas En El Español Dominicano, Orlando Alba

Faculty Publications

El objetivo de esta presentación consiste en ofrecer algunas puntualizaciones, apoyadas en datos orales, sobre hechos específicos relativos a la ‘vocalización’ de /r/ y /l/ en la región del Cibao, República Dominicana. Se trata de aclarar pequeños detalles a veces olvidados o relegados. La intención es contribuir a un mejor conocimiento del verdadero contexto y dimensión del llamativo proceso fonético. Después de una pertinente aclaración teórica, se analizan los factores lingüísticos y sociales que condicionan la realización del fenómeno.

Effect Of Teacher Social Support On Students’ Emotions And Learning Engagement: A U.S.-Chinese Classroom Investigation, Moyi Jia, Jiuqing Cheng

Faculty Publications

Psychological and instructional communication researchers increasingly recognize the significance of student emotions in determining their engagement in the classroom. Under the direction of Emotional Response Theory (Mottet, Frymier, & Beebe, 2006), this study aims to establish a model of a college instructor’s social support, student positive and negative emotions, and student engagement in learning. It also attempts to extend this research by examining cultural differences in U.S. and Chinese classrooms and how these factors influence teacher behavior and student emotions. The result demonstrates the mediating effects of student positive emotions between teacher support and student engagement in both cultures. In …

Women At Work: Pathways From Gender Stereotypes To Gender Bias And Discrimination, Madeline E. Heilman, Suzette Caleo, Francesca Manzi

Faculty Publications

Despite important advances, gender-based discrimination continues to hin-der women’s career progress. This review examines the role that gender stereotypes play in promoting gender bias and discrimination. After review- ing what is known about the content of gender stereotypes and examining both their descriptive and prescriptive aspects, we discuss two pathways through which stereotypes result in discrepant work outcomes for women and men. First, we consider how the characterization of women as com- munal but not agentic conflicts with the perceived demands of many male gender-typed jobs and fields, thus promoting perceptions of women’s lack of competence in those areas. Second, …

The Cetacean Sanctuary: A Sea Of Unknowns, Jason N. Bruck

Faculty Publications

Housing cetaceans in netted sea pens is not new and is common for many accredited managed- care facilities. Hence, the distinction between sanctuary and sea pen is more about the philosophies of those who run these sanctuary facilities, the effects of these philosophies on the animals’ welfare, and how proponents of these sanctuaries fund the care of these animals. Here, I consider what plans exist for cetacean sanctuaries and discuss the caveats and challenges associated with this form of activist-managed captivity. One goal for stakeholders should be to disregard the emotional connotations of the word “sanctuary” …

An Empirical Investigation Of Online Grocery Shopping Behaviors Based On Different Generations, Jung-Im Seo

Faculty Publications

The Coronavirus 19 (COVID-19) pandemic has significantly impacted on consumers’ grocery shopping habits and lifestyles. Online grocery shopping is one of the promising ways to have little contact as well as increase convenience. For this reason, the sales and revenues of online grocery shopping have been dramatically increasing during the pandemic. The purpose of this study to explore online grocery shopping behaviors of different generations and their shopping intentions toward online grocery shopping during and after the pandemic. Data were collected from Amazon Mechanical Turk (MTurk) and Southeast region in U.S.A with convenience sample. All Generations know that online grocery …

Ecological Diversification In An Adaptive Radiation Of Plants: The Role Of De Novo Mutation And Introgression, Benjamin Stone, Carolyn A. Wessinger

Faculty Publications

Adaptive radiations are characterized by rapid ecological diversification and speciation events, leading to fuzzy species boundaries between ecologically differentiated species. Adaptive radiations are therefore key systems for understanding how species are formed and maintained, including the role of de novo mutations versus preexisting variation in ecological adaptation and the genome-wide consequences of hybridization events. For example, adaptive introgression, where beneficial alleles are transferred between lineages through hybridization, may fuel diversification in adaptive radiations and facilitate adaptation to new environments. In this study, we employed whole-genome resequencing data to investigate the evolutionary origin of hummingbird-pollinated flowers and to characterize genome-wide patterns …

Fourteen Years Of Energetic Neutral Atom Observations From Ibex, D J. Mccomas, M Alimaganbetov, L J. Beesley, M Bzowski, H O. Funsten, P H. Janzen, M A. Kubiak, J S. Rankin, D B. Reisenfeld, Nathan A. Schwadron, J R. Szalay

Faculty Publications

The Interstellar Boundary Explorer (IBEX) has been observing the outer heliosphere and its interactions with the very local interstellar medium (VLISM) via measurements of energetic neutral atoms (ENAs) for over 14 yr. We discovered the IBEX Ribbon—a structure completely unanticipated by any prior theory or model—that almost certainly resides beyond the heliopause in the VLISM. We also characterized the other major source of heliospheric ENAs, the globally distributed flux (GDF), produced largely in the heliosheath between the termination shock and heliopause. In this study, we make three major new contributions. First, we validate, provide, and analyze the most recent 3 …

Fourteen Years Of Energetic Neutral Atom Observations From Ibex, D J. Mccomas, M Alimaganbetov, L J. Beesley, M Bzowski, H O. Funsten, P H. Janzen, M A. Kubiak, J S. Rankin, D B. Reisenfeld, Nathan A. Schwadron, J R. Szalay

Faculty Publications

The Interstellar Boundary Explorer (IBEX) has been observing the outer heliosphere and its interactions with the very local interstellar medium (VLISM) via measurements of energetic neutral atoms (ENAs) for over 14 yr. We discovered the IBEX Ribbon—a structure completely unanticipated by any prior theory or model—that almost certainly resides beyond the heliopause in the VLISM. We also characterized the other major source of heliospheric ENAs, the globally distributed flux (GDF), produced largely in the heliosheath between the termination shock and heliopause. In this study, we make three major new contributions. First, we validate, provide, and analyze the most recent 3 …

The Relationship Between The Saharan Air Layer, Convective Environmental Conditions, And Precipitation In Puerto Rico, P. W. Miller, C. Ramseyer

Faculty Publications

The Saharan Air Layer (SAL) is a hot, dry, and dust-laden feature that advects large concentrations of dust across the Atlantic annually to destination regions in the Americas and Caribbean. However, recent work has suggested the SAL may be a contributing factor to high-impact drought in the Caribbean basin. While the SAL's characteristic dust loadings have been the focus of much previous research, fewer efforts have holistically engaged the co-evolution of the dust plume, its associated convective environment, and resultant rainfall in Caribbean islands. This study employs a self-organizing map (SOM) classification to identify the common trans-Atlantic dust transport typologies …

Structural Information On Supramolecular Copper(Ii) Β-Diketonate Complexes From Atomic Force Microscopy And Analytical Ultracentrifugation, Jonathan S. Casey, Ashley R. Walker, Xianglin Zhai, Jayne C. Garno, Paul S. Russo, Andrew W. Maverick

Faculty Publications

Supramolecular Cu(II) complexes were prepared from two trifunctional β-diketone ligands. The ligands (CH3Si(phacH)3 and CH3Si(phprH)3, represented by LH3) contain three aryl-β-diketone moieties joined by an organosilicon group. The complexes have the empirical formula Cu3L2, as expected for combinations of Cu²⁺ and L^3-. Several metal-organic polyhedra (MOPs) [Cu3L2]n are possible (n = 1-10); a dodecahedron (Cu30L20; n = 10; estimated diameter of ca. 5 nm) should be the most stable because its internal bond angles would come closest to ideal values. Atomic force microscopy (AFM), performed on samples deposited from solution onto mica substrates, revealed a distribution of …

Investigating Environmentally Persistent Free Radicals (Epfrs) Emissions Of 3d Printing Process, Farhana Hasan, Phillip M. Potter, Souhail R. Al-Abed, Joanna Matheson, Slawomir M. Lomnicki

Faculty Publications

In recent years, the emission of particles and gaseous pollutants from 3D printing has attracted much attention due to potential health risks. This study investigated the generation of environmentally persistent free radicals (EPFRs, organic free radicals stabilized on or inside particles) in total particulate matter (TPM) released during the 3D printing process. Commercially available 3D printer filaments, made of acrylonitrile–butadiene–styrene (ABS) in two different colors and metal content, ABS-blue (19.66 µg/g Cu) and ABS-black (3.69 µg/g Fe), were used for printing. We hypothesized that the metal content/composition of the filaments contributes not only to the type and number of EPFRs …

Machine-Learning-Assisted Leak Detection Using Distributed Temperature And Acoustic Sensors, Hayden Gemeinhardt, Jyotsna Sharma

Faculty Publications

Small leaks, many of which often go undetected using conventional gauges, remain an urgent problem for an aging pipeline infrastructure. This article proposes a method that allows for an automated and robust leak detection and localization system by fusing distributed acoustic sensor (DAS) and distributed temperature sensor (DTS) data for machine learning. Distributed fiber-optic sensing creates an advantage over conventional gauges by providing real-time continuous measurements along the entire length of the fiber-instrumented pipeline at a high spatiotemporal resolution and sensitivity that can detect small leaks, as well as the leak location. High sensitivity, however, can create noisy data. Thus, …

The Association Of Dietary Antioxidants And The Inflammatory Potential Of The Diet With Poor Physical Function And Disability In Older Australian Men: The Concord Health And Ageing In Men Project, Daniela Wizgier, Ying Meng, Arpita Das, Vasi Naganathan, Fiona Blyth, David G. Le Couteur, David J. Handelsman, Louise M. Waite, Rosilene V. Ribeiro, Nitin Shivappa, James Hébert Scd, Vasant Hirani

Faculty Publications

Our objective was to evaluate the association of antioxidant intake and the inflammatory potential of the diet with functional decline in older men. A diet history questionnaire was used to collect dietary intake data from men aged ≥ 75 years (n 794) participating in the Concord Health and Aging in Men Project cohort study. Intake of vitamins A, C, E and Zn were compared with the Australian Nutrient Reference Values to determine adequacy. The Energy-adjusted Dietary Inflammatory Index (E-DIITM) was used to assess the inflammatory potential of the diet. Physical performance data were collected via handgrip strength and walking speed …

Scaffold-Based 3d Cell Culture Models In Cancer Research, Waad H. Abuwatfa, William G. Pitt, Ghaleb A. Husseini

Faculty Publications

Three-dimensional (3D) cell cultures have emerged as valuable tools in cancer research, offering significant advantages over traditional two-dimensional (2D) cell culture systems. In 3D cell cultures, cancer cells are grown in an environment that more closely mimics the 3D architecture and complexity of in vivo tumors. This approach has revolutionized cancer research by providing a more accurate representation of the tumor microenvironment (TME) and enabling the study of tumor behavior and response to therapies in a more physiologically relevant context. One of the key benefits of 3D cell culture in cancer research is the ability to recapitulate the complex interactions …

Model Predictive Control Of A Lab-Scale Thermal Energy Storage System In Relap5-3d, Jaron Wallace, Daniel Hill, David Thurston, John Hedengren, Matthew Memmott

Faculty Publications

Increased renewable energy penetration of an electrical grid generally creates more supply fluctuations. Traditional base-load systems, such as nuclear power, can be retrofitted with thermal energy storage (TES) systems to meet supply demand fluctuations. These systems can store energy during low electricity demand times to allow the reactor to operate at constant power while simultaneously fluctuating electricity output. The control of these systems is of vital importance and Model Predictive Control (MPC) is a leading control mechanism for optimized production plans with forecast information. This study combines high fidelity RELAP5-3D models with MPC to control an experimental benchtop system that …

On Lightweight Shape Memory Vitrimer Composites, Siavash Sarrafan, Guoqiang Li

Faculty Publications

Lightweight materials are highly desired in many engineering applications. A popular approach to obtain lightweight polymers is to prepare polymeric syntactic foams by dispersing hollow particles, such as hollow glass microbubbles (HGMs), in a polymer matrix. Integrating shape memory vitrimers (SMVs) in fabricating these syntactic foams enhances their appeal due to the multifunctionality of SMVs. The SMV-based syntactic foams have many potential applications, including actuators, insulators, and sandwich cores. However, there is a knowledge gap in understanding the effect of the HGM volume fraction on different material properties and behaviors. In this study, we prepared an SMV-based syntactic foam to …

Free-Standing 3d Printing Of Epoxy-Vinyl Ether Structures Using Radical-Induced Cationic Frontal Polymerization, Brecklyn R. Groce, Alexandra V. Aucoin, Md Asmat Ullah, Jake Dicesare, Claire Wingfield, Jonathan Sardin, Jackson T. Harris, John C. Nguyen, Patrick Raley, Svetlana S. Stanley, Genevieve Palardy, John A. Pojman

Faculty Publications

The application of frontal polymerization to additive manufacturing has advantages in energy consumption and speed of printing. Additionally, with frontal polymerization, it is possible to print free-standing structures that require no supports. A resin was developed using a mixture of epoxies and vinyl ether with an iodonium salt and peroxide initiating system that frontally polymerizes through radical-induced cationic frontal polymerization. The formulation, which was optimized for reactivity, physical properties, and rheology, allowed the printing of free-standing structures. Increasing ratios of vinyl ether and reactive cycloaliphatic epoxide were found to increase the front velocity. Addition of carbon nanofibers increased the front …

Editorial: Methods And Advances In Marine Geology And Hydrodynamics Environment, Xingsen Guo, Fei Han, Yan Liu, Nan Wu, Cheng Zhang, Ningning Zhang

Faculty Publications

EDITORIAL article Front. Mar. Sci., 12 January 2024Sec. Ocean Observation Volume 11 - 2024 | https://doi.org/10.3389/fmars.2024.1362605