Digital Commons Network^™

Regimes Of Stratified Turbulence At Low Prandtl Number, Kasturi Shah, Gregory P. Chini, Colm-Cille P. Caulfield, Pascale Garaud

Faculty Publications

Quantifying transport by strongly stratified turbulence in low Prandtl number ( $Pr$ ) fluids is critically important for the development of better models for the structure and evolution of stellar and planetary interiors. Motivated by recent numerical simulations showing strongly anisotropic flows suggestive of a scale-separated dynamics, we perform a multiscale asymptotic analysis of the governing equations. We find that, in all cases, the resulting slow–fast systems take a quasilinear form. Our analysis also reveals the existence of several distinct dynamical regimes depending on the emergent buoyancy Reynolds and Péclet numbers, $Re_b = \alpha ^2 Re$ and $Pe_b = Pr …

Regimes Of Stratified Turbulence At Low Prandtl Number, Kasturi Shah, Gregory P. Chini, Colm-Cille P. Caulfield, Pascale Garaud

Faculty Publications

Quantifying transport by strongly stratified turbulence in low Prandtl number ( $Pr$ ) fluids is critically important for the development of better models for the structure and evolution of stellar and planetary interiors. Motivated by recent numerical simulations showing strongly anisotropic flows suggestive of a scale-separated dynamics, we perform a multiscale asymptotic analysis of the governing equations. We find that, in all cases, the resulting slow–fast systems take a quasilinear form. Our analysis also reveals the existence of several distinct dynamical regimes depending on the emergent buoyancy Reynolds and Péclet numbers, $Re_b = \alpha ^2 Re$ and $Pe_b = Pr …

Short Communication: Numerically Simulated Time To Steady State Is Not A Reliable Measure Of Landscape Response Time, Nicole M. Gasparini, Adam M. Forte, Katherine R. Barnhart

Faculty Publications

Quantifying the timescales over which landscapes evolve is critical for understanding past and future environmental change. Computational landscape evolution models are one tool among many that have been used in this pursuit. We compare numerically modeled times to reach steady state for a landscape adjusting to an increase in rock uplift rate. We use three different numerical modeling libraries and explore the impact of time step, grid type, numerical method for solving the erosion equation, and metric for quantifying the time to steady state. We find that modeled time to steady state is impacted by all of these variables. Time …

Heavy Molecular And Metallic Ions In The Magnetosphere, M Yamauchi, S Christon, I Dandouras, S Haaland, D Kastinen, Lynn M. Kistler, I Mann, S Nozawa, J M C Plane, Y Saito, L Schulz, S Watababe, P Wurz, A W. Yau

Faculty Publications

Observations and present knowledge of heavy ions with mass ≥ 27 in the magnetosphere are reviewed. There are four ultimate sources of these heavy ions: the solar wind (mainly high charge-state atomic ions), the ionosphere (mainly molecular ions), the atmospheric metal layers that originate ultimately from ablation of meteoroids and possibly space debris (low charge-state metallic ions and metal-rich molecular ions), and lunar surface and exosphere (low charge-state metallic and molecular ions). The upstream heavy ions (solar wind origin and lunar origin) give independent information on the ion entry routes to the magnetosphere from proton (H+) and alpha particles (He++): …

Neville Fletcher's Vibrant Valve Voyage, Whitney L. Coyle

Faculty Publications

Fletcher's seminal 1993 paper explores the dynamics of pressure-controlled valves critical in sound production for woodwind and brass instruments and animal vocalizations.1 The study examines four simple valve configurations, determined by the effect of overpressures on valve openings. It identifies conditions under which these valves can sustain self-sustained oscillations, particularly when the ducts connected to the valves are shorter than a quarter of the wavelength at the valve's resonant frequency. The research focuses on the initiation of small amplitude oscillations, setting the stage for understanding larger amplitude nonlinear oscillations.

Integrative Highway Rights-Of-Way Management To Reduce Stormwater Run-Off And Enhance Habitat, Madeline M. Showers, Robin M. Rotman

Faculty Publications

Nature-based management along highway rights-of-way (ROW) has been a focus in several states to benefit pollinators through supporting diverse and native vegetative communities. There is the potential to enhance the ecological benefits of this practice by integrating stormwater management into restoration plans and incorporating other complex, multidisciplinary factors. Historically, lack of technical assistance and limited resources has led managers to use unsustainable roadside practices that reduce the potential ecological services of the ROW; however, integrative management can aid in the prioritization of management efforts and link objectives of various resource agencies. In this literature review, we address the ecological impacts …

Personhood, Politics, Assisted Reproduction, And The Law Post-Dobbs, Myrisha S. Lewis

Faculty Publications

With the end of the federal constitutional right to abortion, state legislatures and state courts have become far more important in the sphere of reproductive rights. Before Dobbs, anti-abortion advocates had significant (albeit increasingly porous) ceilings on what they could prohibit in relation to reproductive health care. A significant check on those actions is now gone.

In the wake of Dobbs, societal debates about personhood have increased and expanded in terms of their practical implications. Before Dobbs, anti-abortion advocates admitted that Roe and subsequent cases limited the scope of their arguments, especially in relation to the legality …

Sculpting Success: The Importance Of Diet And Physical Activity To Support Skeletal Muscle Health During Weight Loss With New Generation Anti-Obesity Medications, Gregory J. Grosicki, Nikhil V. Dhurandhar, Jessica L. Unick, Shawn M. Arent Ph.D., Cscs*D, Fissn, Facsm, Fnak, J. Graham Thomas, Holly Lofton, Madelyn C. Shepherd, Jessica Kiel, Christopher Coleman, Satya S. Jonnalagadda

Faculty Publications

Obesity is a public health crisis, with prevalence rates tripling over the past 60 y. Although lifestyle modifications, such as diet and physical activity, remain the first-line treatments, recent anti-obesity medications (AOMs) have been shown to achieve greater reductions in body weight and fat mass. However, AOMs also reduce fat-free mass, including skeletal muscle, which has been demonstrated to account for 20% to 50% of total weight loss. This can equate to ∼6 kg or 10% of total lean mass after 12–18 mo, a loss comparable to a decade of human aging. Despite questions surrounding the clinical relevance of weight …

Online Eye Tracking For Aphasia: A Feasibility Study Comparing Web And Lab Tracking And Implications For Clinical Use, Willem S. Van Boxtel, Michael Linge, Rylee Manning, Lily N. Haven, Jiyeon Lee

Faculty Publications

Background & Aims: Studies using eye-tracking methodology have made important contributions to the study of language disorders such as aphasia. Nevertheless, in clinical groups especially, eye-tracking studies often include small sample sizes, limiting the generalizability of reported findings. Online, webcam-based tracking offers a potential solution to this issue, but web-based tracking has not been compared with in-lab tracking in past studies and has never been attempted in groups with language impairments. Materials & Methods: Patients with post-stroke aphasia (n = 16) and age-matched controls (n = 16) completed identical sentence-picture matching tasks in the lab (using an EyeLink system) and …

Studying Geometry Of The Ultraluminous X-Ray Pulsar Swift J0243.6+6124 Using X-Ray And Optical Polarimetry, Juri Poutanen, Sergey S. Tsygankov, Victor Doroshenko, Sofia V. Forsblom, Peter Jenke, Philip Kaaret, Andrei V. Berdyugin, Dmitry Blinov, Vadim Kravtsov, Ioannis Liodakis, Anastasia Tzouvanou, Alessandro Di Marco, Jeremy Heyl, Fabio La Monaca, Alexander A. Mushtukov, George G. Pavlov, Alexander Salganik, Alexandra Veledina, Martin C. Weisskopf, Silvia Zane, Vladislav Loktev, Valery F. Suleimanov, Colleen Wilson-Hodge, Svetlana V. Berdyugina, Masato Kagitani, Vilppu Piirola, Takeshi Sakanoi, Iván Agudo, Lucio A. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini

Faculty Publications

Discovery of pulsations from a number of ultra-luminous X-ray (ULX) sources proved that accretion onto neutron stars can produce luminosities exceeding the Eddington limit by several orders of magnitude. The conditions necessary to achieve such high luminosities as well as the exact geometry of the accretion flow in the neutron star vicinity are, however, a matter of debate. The pulse phase-resolved polarization measurements that became possible with the launch of the Imaging X-ray Polarimetry Explorer (IXPE) can be used to determine the pulsar geometry and its orientation relative to the orbital plane. They provide an avenue to test different theoretical …

Probing The Polarized Emission From Smc X-1: The Brightest X-Ray Pulsar Observed By Ixpe, Sofia V. Forsblom, Sergey S. Tsygankov, Juri Poutanen, Victor Doroshenko, Alexander A. Mushtukov, Mason Ng, Swati Ravi, Herman L. Marshall, Alessandro Di Marco, Fabio La Monaca, Christian Malacaria, Guglielmo Mastroserio, Vladislav Loktev, Andrea Possenti, Valery F. Suleimanov, Roberto Taverna, Iván Agudo, Lucio A. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stefano Bianchi, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolò Bucciantini, Fiamma Capitanio, Simone Castellano, Elisabetta Cavazzuti, Chien Ting Chen, Stefano Ciprini, Enrico Costa

Faculty Publications

Recent observations of X-ray pulsars (XRPs) performed by the Imaging X-ray Polarimetry Explorer (IXPE) have made it possible to investigate the intricate details of these objects in a new way, thanks to the added value of X-ray polarimetry. Here we present the results of the IXPE observations of SMC X-1, a member of the small group of XRPs displaying super-orbital variability. SMC X-1 was observed by IXPE three separate times during the high state of its super-orbital period. The observed luminosity in the 2- 8 keV energy band of L ∼ 2 × 10³⁸ erg s^{- 1} makes …

Probabilistic Well-Posedness For The Nonlinear Wave Equation On B2 × T, Aynur Bulut

Faculty Publications

We establish probabilistic well-posedness results for the subcubic nonlinear wave equation, posed on the domain B2 × T, with randomly chosen initial data having radial symmetry in the B2 variable, and with vanishing Dirichlet boundary conditions on ∂B2 × T.

Historic Breeding Practices Contribute To Germplasm Divergence In Leaf Specialized Metabolism And Ecophysiology In Cultivated Sunflower (Helianthus Annuus), Jordan A. Dowell, Alan W. Bowsher, Amna Jamshad, Rahul Shah, John M. Burke, Lisa A. Donovan, Chase M. Mason

Faculty Publications

Premise: The use of hybrid breeding systems to increase crop yields has been the cornerstone of modern agriculture and is exemplified in the breeding and improvement of cultivated sunflower (Helianthus annuus). However, it is poorly understood what effect supporting separate breeding pools in such systems, combined with continued selection for yield, may have on leaf ecophysiology and specialized metabolite variation. Methods: We analyzed 288 lines of cultivated H. annuus to examine the genomic basis of several specialized metabolites and agronomically important traits across major heterotic groups. Results: Heterotic group identity supports phenotypic divergences between fertility restoring and cytoplasmic male-sterility maintainer …

Combined Toxicity Of Multi-Walled Carbon Nanotubes And Cu2+ On The Growth Of Ryegrass: Effect Of Surface Modification, Dose, And Exposure Time Pattern, Wenwen Xie, Cheng Peng, Weiping Wang, Xiaoyi Chen, Jiaqi Tan, Wei Zhang

Faculty Publications

The escalating release of multi-walled carbon nanotubes (MWCNTs) into the environment has raised concerns due to their potential ecotoxicological impacts. However, their combined phytotoxicity with heavy metals such as copper (Cu) is still unclear. This study investigated the individual and combined toxic effects of MWCNTs (MWCNT, MWCNT-OH, and MWCNT-COOH) and Cu²⁺ on ryegrass (Lolium multiflorum), uniquely considering different addition orders. The results show that Cu severely inhibited the growth of ryegrass while MWCNTs exhibited a hormesis effect on ryegrass. When MWCNT and Cu were combined, the malondialdehyde (MDA) content in ryegrass showed a 32.39% increase at 20 mg/L MWCNT …

The Roles Of Vicarious Trauma Exposure And Perceived Social Support In Codeine Syrup Misuse Among Black Men Living In Prisons, Jardin Dogan-Dixon, Shawndaya S. Thrasher, Shemeka Thorpe, Paris Wheeler, Danelle Stevens-Watkins

Faculty Publications

Using General Strain Theory, this study investigates the effects of vicarious trauma exposure and perceived social support on nonmedical codeine syrup misuse among Black incarcerated men nearing community re-entry. Data were drawn from the Helping Incarcerated Men project, a study examining mental health, substance misuse, and human immunodeficiency virus (HIV) risk behaviors among Black men living in prisons who were within 180 days of release. A total of 200 Black men self-reported demographics (i.e., age and length of incarceration after age 18), vicarious trauma exposure (e.g., ever witnessing an assault with a weapon and a sudden accidental death), perceived social …

Cultural Predictors Of Self-Esteem Among Black Women With Criminal Justice Involvement And Herpes Simplex Virus, Natalie Malone, Jardin N. Dogan-Dixon, Shemeka Thorpe, Shawndaya S. Thrasher, Paris Wheeler, Danelle Stevens-Watkins, Carrie B. Oser

Faculty Publications

Black women have disproportionately alarming HSV-2 infection rates yet receive little attention in sexual health literature. Using a strengths-based resilience framework, this study sought to determine culturally relevant protective predictors of self-esteem for Black women who are justice-involved and have HSV-2. The authors conducted secondary data analysis on data from the “Black Women in the Study of Epidemics (B-WISE) Project,” a longitudinal prospective study investigating health disparities and health services utilization among Black women with justice involvement. At baseline, N = 151 Black women with HSV-2 who were incarcerated or on probation completed survey measures assessing self-esteem, ethnic identity affirmation …

Comprehensive Structural Study Of Lanthanide(Iii) Chloride Hydrates: [Recl3·Xh2o (Re = La–Nd, Sm–Lu; X = 6, 7)], Thimira Kandabadage, Beau Legnon, Sviatoslav Baranets

Faculty Publications

A comprehensive crystallographic study is presented of the complete series of rare-earth(III) chloride hydrates. Early lanthanides form dimeric [(H2O)7RE(μCl)2RE(H2O)7]⁴⁺ binuclear complexes in which each RE atom (RE = La³⁺, Ce³⁺) is coordinated by seven H2O molecules and two bridging inner-sphere chloride ions. Di-μ-chlorido-bis[heptaaqualanthanide(III)] tetrachloride, [(H2O)7RE(μ-Cl)2RE(H2O)7]Cl4, crystallizes in the triclinic space group P1. Heavier lanthanides exhibit monomeric [RECl2(H2O)6]⁺ units where each RE atom (RE = Pr³⁺, Nd³⁺, Sm³⁺–Lu³⁺) is coordinated by six H2O molecules and two inner-sphere chloride ions. Hexaaquadichloridolanthanide(III) chlorides, [RECl2(H2O)6]Cl, adopt the monoclinic space group …

The Power Of All: Tort In The Age Of Constitution, Cristina Carmody Tilley

Faculty Publications

Life in a multicultural nation can be fraught. The United States is a case in point, with hostile tension between members of competing identity groups playing out today on streets, in offices, and across the media. Modern Americans assume that bridging race, gender, and class inequity is the stuff of public—constitutional—law. This assumption follows the lead of modern American lawyers, who migrated to this body of law just as historians, sociologists, and economists began to insist that the private law of tort was exclusively concerned with the accidental physical harms inevitable in a modern economy. According to this econostory, tort …

Research Gaps And Priorities For Quantitative Microbial Risk Assessment (Qmra), Kerry A. Hamilton, Joanna Ciol Harrison, Jade Mitchell, Mark Weir, Marc Verhougstraete, Charles N. Haas, A. Pouyan Nejadhashemi, Julie Libarkin, Tiong Gim Aw, Kyle Bibby, Aaron Bivins, Joe Brown, Kara Dean, Gwyneth Dunbar, Joseph N.S. Eisenberg, Monica Emelko, Daniel Gerrity, Patrick L. Gurian, Emma Hartnett, Michael Jahne, Rachael M. Jones, Timothy R. Julian, Hongwan Li, Yanbin Li, Jacqueline Mac Donald Gibson, Gertjan Medema, J. Scott Meschke, Alexis Mraz, Heather Murphy, David Oryang, Emmanuel De Graft Johnson Owusu-Ansah, Emily Pasek, Abani K. Pradhan

Faculty Publications

The coronavirus disease 2019 pandemic highlighted the need for more rapid and routine application of modeling approaches such as quantitative microbial risk assessment (QMRA) for protecting public health. QMRA is a transdisciplinary science dedicated to understanding, predicting, and mitigating infectious disease risks. To better equip QMRA researchers to inform policy and public health management, an Advances in Research for QMRA workshop was held to synthesize a path forward for QMRA research. We summarize insights from 41 QMRA researchers and experts to clarify the role of QMRA in risk analysis by (1) identifying key research needs, (2) highlighting emerging applications of …

Global Empirical Model Of Sporadic-E Occurrence Rates, Eli V. Parsch, Anthony L. Franz, Eugene V. Dao, Dong L. Wu, Nimalan Swarnalingam, Cornelius C. J. H. Salinas, Daniel J. Emmons

Faculty Publications

Intense ionization enhancements in the Earth’s ionosphere, known as sporadic-E (E_s), can degrade and severely disrupt the propagation of radio signals. Although many previous studies have analyzed the characteristics and morphologies of sporadic-E, few efforts have attempted to model global E_s occurrence rates (ORs) at high time resolutions. This study develops a global empirical model of blanketing sporadic-E occurrence rates using a Karhunen–Loéve Expansion (KLE) of a global OR climatology built with Global Navigation Satellite System radio occultation (GNSS-RO) and ionosonde observations. Using an fbE ≥ threshold of 3 MHz, the model outputs a blanketing sporadic-E …

Adverse Childhood Experiences And Hiv-Related Stigma: A Quantitative Survey Of Tanzanian Men, June 2019, Amandeep Kaur, Monique J. Brown Ph.D., Mph, Geoffrey K. Kangogo, Xiaoming Li Ph.D., Ivan E. Teri, Gaspar Mbita, Aima A. Ahonkhai, Donaldson F. Conserve

Faculty Publications

Experiencing adverse childhood experiences (ACEs) may impact personal opinions, attitudes, and judgments, which can further result in HIV-related stigma. HIV-related stigma consequentially may impact HIV preventive measures such as HIV testing, pre-exposure prophylaxis uptake, and condom use. The extent to which ACEs influence HIV-related stigma perception has not been well studied. Therefore, the study aimed to examine the association between ACEs and perceived and interpersonal HIV-related stigma among Tanzanian HIV-negative men. Quantitative survey data were obtained from the Tanzania STEP (Self-Testing Education and Promotion) project established in four wards: Mabibo, Manzese, Tandale, and Mwanyanamala. A total of 507 men responded …

Threshold Changes In Winter Temperature And Precipitation Drive Threshold Responses Across Nine Global Climate Zones And Associated Biomes, Alexandra R. Contosta, Kyle A. Arndt, Helen M. Baulch, Nora J. Casson, Adrian Harpold, Toni Lyn Morelli, Alexej P.K. Sirén

Faculty Publications

Globally, winter temperatures are rising, and snowpack is shrinking or disappearing entirely. Despite previous research and published literature reviews, it remains unknown whether biomes across the globe will cross important thresholds in winter temperature and precipitation that will lead to significant ecological changes. Here, we combine the widely used Köppen–Geiger climate classification system with worst-case-scenario projected changes in global monthly temperature and precipitation to illustrate how multiple climatic zones across Earth may experience shifting winter conditions by the end of this century. We then examine how these shifts may affect ecosystems within corresponding biomes. Our analysis demonstrates potential widespread losses …

Andrews Community Counseling Center, Ron Coffen

Faculty Publications

No abstract provided.

Variations Of Aquaculture Structures, Operations, And Maintenance With Increasing Ocean Energy, Kevin G. Heasman, Nicholas Scott, Tyler Sclodnick, Michael Chambers, Barry Costa-Pierce, Tobias Dewhurst, Wolf Isbert, Bela H. Buck

Faculty Publications

Aquaculture in exposed and/or distant ocean sites is an emerging industry and field of study that addresses the need to improve food security along with the challenges posed by expansion of urban and coastal stakeholders into nearshore and sheltered marine waters. This move necessitates innovative solutions for this industry to thrive in high-energy environments. Some innovative research has increased understanding of the physics, hydrodynamics, and structural requirements enabling the development of appropriate systems. The blue mussel (Mytilus edulis), the New Zealand green shell or green lipped mussel (Perna canaliculus), and the Pacific Oyster (Magallana gigas), are the primary targets for …

How Do Scholars Conceptualize And Conduct Health And Digital Health Literacy Research? Survey Of Federally Funded Scholars, Mayank Sakhuja, Brooks Yelton Ma, Lmsw, Simone Kabarana, Lauren Schaurer, Jancham Rachel Rumthao, Samuel Noblet, Michelle Angelique Arent, Mark M. Macauda Phd, Mph, Lorie Donelle Phd, Rn, Fcan, Daniela B. Friedman Ph.D.

Faculty Publications

Background: The concept of health literacy (HL) is constantly evolving, and social determinants of health (SDoH) have been receiving considerable attention in public health scholarship. Since a 1-size-fits-all approach for HL fails to account for multiple contextual factors and as a result poses challenges in improving literacy levels, there is a need to develop a deeper understanding of the current state of HL and digital health literacy (DHL) research. Objective: This study examined scholars’ conceptualization and scope of work focused on HL and DHL. Methods: Using a search string, investigators (N=2042) focusing on HL, DHL, or both were identified from …

The Structure, Oxidation States, And Energetics Of Co Nanoparticles On Ceo2(111): An Stm And Dft Study, Md Saeedur Rahman, Nishan Paudyal, Linze Du Hill, Jing Zhou, Ye Xu

Faculty Publications

Co nanoparticles (NPs) dispersed on ceria have been widely studied as active catalytic materials for many industrially relevant reactions. The detailed nature of such particles and the factors affecting their interaction with ceria remain to be better understood. In this study, a very low coverage (∼0.02 ML) of Co is deposited on a model CeO2(111) thin-film surface and is examined using scanning tunneling microscopy (STM) and X-ray photoelectron spectroscopy (XPS). The Co NPs that nucleate on terrace sites grow with coverage in this range to a maximum size of ca. 40 Co atoms, with an average diameter and height of …

Variations Of Aquaculture Structures, Operations, And Maintenance With Increasing Ocean Energy, Kevin G. Heasman, Nicholas Scott, Tyler Sclodnick, Michael Chambers, Barry Costa-Pierce, Tobias Dewhurst, Wolf Isbert, Bela H. Buck

Faculty Publications

Aquaculture in exposed and/or distant ocean sites is an emerging industry and field of study that addresses the need to improve food security along with the challenges posed by expansion of urban and coastal stakeholders into nearshore and sheltered marine waters. This move necessitates innovative solutions for this industry to thrive in high-energy environments. Some innovative research has increased understanding of the physics, hydrodynamics, and structural requirements enabling the development of appropriate systems. The blue mussel (Mytilus edulis), the New Zealand green shell or green lipped mussel (Perna canaliculus), and the Pacific Oyster (Magallana gigas), are the primary targets for …

Covid-19 Pandemic And Ghana’S Economy: A Deep Dive Into Economic Indicators, Williams Kwasi Peprah, Isaac Anowuo [email protected], Ebenezer Owusu-Yeboah, Daniel Adofo Kwakye Ameyaw, Lucile Sabas

Faculty Publications

The study presents an in-depth analysis of the COVID-19 pandemic’s effect on Ghana’s gross domestic product (GDP), balance of payments and international investment position (BPM6), and inflation (INFL). Employing a pre-and post-COVID-19 comparison (2017-2022) through repeated measures ANOVA and tests of between-subject effects, it investigates whether the government’s economic performance was significantly impacted. Key findings show a notable decrease in GDP and BPM6, alongside a major increase in inflation rates post-pandemic. The study concludes that the COVID-19 pandemic had a statistically significant impact on Ghana’s economic performance in terms of GDP and BPM6, but not inflation. Recommendations include implementing economic …

Evaluation And Lessons Learned From The Dissemination And Implementation Science Scholars Program In The National Cancer Prevention And Control Research Network, Daniela B. Friedman, Cam Escoffery, Elaine H. Morrato, Cynthia A. Thomson, Courtney N. Petagna, Freda Allyson Hucek, Mary Wangen, Aubrey Villalobos, James R. Hébert Scd, Samuel Noblet, Mayank Sakhuja, David O. Garcia, Jennifer L. Cruz, Stephanie B. Wheeler

Faculty Publications

Background:

The Centers for Disease Control and Prevention (CDC)-funded Cancer Prevention and Control Research Network (CPCRN) has been a leader in cancer-related dissemination & implementation (D&I) science. Given increased demand for D&I research, the CPCRN Scholars Program launched in 2021 to expand the number of practitioners, researchers, and trainees proficient in cancer D&I science methods. Methods:

The evaluation was informed by a logic model and data collected through electronic surveys. Through an application process (baseline survey), we assessed scholars’ competencies in D&I science domains/subdomains, collected demographic data, and asked scholars to share proposed project ideas. We distributed an exit survey …

Advancing Heteroanionicity In Zintl Phases: Crystal Structures, Thermoelectric And Magnetic Properties Of Two Quaternary Semiconducting Arsenide Oxides, Eu8zn2as6o And Eu14zn5as12o, Mohd Ishtiyak, Spencer R. Watts, Bhushan Thipe, Frank Womack, Philip Adams, Xiaojian Bai, David P. Young, Svilen Bobev, Sviatoslav Baranets

Faculty Publications

Two novel quaternary oxyarsenides, Eu8Zn2As6O and Eu14Zn5As12O, were synthesized through metal flux reactions, and their crystal structures were established by single-crystal X-ray diffraction methods. Eu8Zn2As6O crystallizes in the orthorhombic space group Pbca, featuring polyanionic ribbons composed of corner-shared triangular [ZnAs3] units, running along the [100] direction. The structure of Eu14Zn5As12O crystallizes in the monoclinic space group P2/m and its anionic substructure can be described as an infinite “ribbonlike” chain comprised of [ZnAs3] trigonal-planar units, although the structural complexity here is greater and also amplified by disorder on multiple crystallographic positions. In both structures, the O^2- anion occupies an octahedral …