Digital Commons Network^™

A Comparison Of Bat Calls Recorded By Two Acoustic Monitors, Jane M. Kunberger, Ashley M. Long

Faculty Publications

Recent advances in low-cost autonomous recording unit (ARU) technology have made large-scale bat monitoring projects more practical, but several key features of ARUs (e.g., microphone quality and triggering thresholds) can influence their ability to detect and record bats. As such, it is important to quantify and report variation in ARU performance as new recording systems become available. We used the automated classification software SonoBat to compare the numbers of call files, echolocation pulses, and species recorded by a commonly used, full-spectrum bat detector-the Song Meter SM4BAT-FS-and a less expensive, open-source ARU that can detect ultrasound-the AudioMoth. We deployed paired ARUs …

Demystifying Longitudinal Data Analyses Using Structural Equation Models In School Psychology, Garret J. Hall, Kelly N. Clark

Faculty Publications

Structural equation models (SEM) are a method of latent variable analysis that offer a high degree of flexibility in terms of modeling methods for applied research questions. Recent advancements associated with longitudinal SEM have unlocked innovative ways to decompose variance and to estimate mean trends over time (e.g., Allison et al., 2017; Berry & Willoughby, 2017; Hamaker et al., 2015; McArdle & Nesselroade, 2014). However, these longitudinal methods are not necessarily readily accessible to scholars seeking to advance theory and practice in school psychology. Importantly, not all longitudinal data are the same and not all longitudinal SEMs are the same; …

Quantum Fluctuations Spatial Mode Profiler, Charris Gabaldon, Pratik Barge, Savannah L. Cuozzo, Irina Novikova, Hwang Lee, Lior Cohen, Eugeniy E. Mikhailov

Faculty Publications

The spatial mode is an essential component of an electromagnetic field description, yet it is challenging to characterize it for optical fields with the low average photon number, such as in a squeezed vacuum. We present a method for the reconstruction of the spatial modes of such fields based on the homodyne measurements of their quadrature noise variance performed with a set of structured masks. We show theoretically that under certain conditions, we can recover individual spatial mode distributions by using the weighted sum of the basis masks, where weights are determined using measured variance values and phases. We apply …

8(Meso)-Pyridyl-Bodipys: Effects Of 2,6-Substitution With Electron-Withdrawing Nitro, Chloro, And Methoxycarbonyl Groups, Caroline Ndung’U, Petia Bobadova-Parvanova, Daniel J. Lamaster, Dylan Goliber, Frank R. Fronczek, Maria Da Graça H. Vicente

Faculty Publications

The introduction of electron-withdrawing groups on 8(meso)-pyridyl-BODIPYs tends to increase the fluorescence quantum yields of this type of compound due to the decrease in electronic charge density on the BODIPY core. A new series of 8(meso)-pyridyl-BODIPYs bearing a 2-, 3-, or 4-pyridyl group was synthesized and functionalized with nitro and chlorine groups at the 2,6-positions. The 2,6-methoxycarbonyl-8-pyridyl-BODIPYs analogs were also synthesized by condensation of 2,4-dimethyl-3-methoxycarbonyl-pyrrole with 2-, 3-, or 4-formylpyridine followed by oxidation and boron complexation. The structures and spectroscopic properties of the new series of 8(meso)-pyridyl-BODIPYs were investigated both experimentally and computationally. The BODIPYs bearing 2,6-methoxycarbonyl groups showed enhanced …

The Distribution Of Surface Soil Moisture Over Space And Time In Eastern Taylor Valley, Antarctica, Mark R. Salvatore, John E. Barrett, Laura E. Fackrell, Eric R. Sokol, Joseph S. Levy, Lily C. Kuentz, Michael N. Gooseff, Byron J. Adams, Sarah N. Power, J. Paul Knightly, Haley M. Matul, Brian Szutu, Peter T. Doran

Faculty Publications

Available soil moisture is thought to be the limiting factor for most ecosystem processes in the cold polar desert of the McMurdo Dry Valleys (MDVs) of Antarctica. Previous studies have shown that microfauna throughout the MDVs are capable of biological activity when sufficient soil moisture is available (~2–10% gravimetric water content), but few studies have attempted to quantify the distribution, abundance, and frequency of soil moisture on scales beyond that of traditional field work or local field investigations. In this study, we present our work to quantify the soil moisture content of soils throughout the Fryxell basin using multispectral satellite …

Constraints On The Timing Of The India-Asia Collision And Unroofing History Of The Himalayan Orogen Using Detrital Zircon U-Pb-Hf And Whole-Rock Sr-Nd Isotopes In Cretaceous-Miocene Lesser Himalayan Sedimentary Rocks, Wei Feng, Qingquan Meng, Chunhui Song, Xiaomin Fang, Guangsheng Zhuang, Pengju He, Shufen Yang, Jing Zhang, Yongfa Chen, Yihu Zhang

Faculty Publications

Cretaceous-Miocene sedimentary rocks in the Nepalese Lesser Himalaya provide an opportunity to decipher the timing of India-Asia collision and unroofing history of the Himalayan orogen, which are significant for understanding the growth processes of the Himalayan-Tibetan orogen. Our new data indicate that detrital zircon ages and whole-rock Sr-Nd isotopes in Cretaceous-Miocene Lesser Himalayan sedimentary rocks underwent two significant changes. First, from the Upper Cretaceous-Palaeocene Amile Formation to the Eocene Bhainskati Formation, the proportion of late Proterozoic-early Palaeozoic zircons (quantified by an index of 500–1200 Ma/1600–2800 Ma) increased from nearly 0 to 0.7–1.4, and the percentage of Mesozoic zircons decreased from …

Thermoset Polymer Composites With Gradient Natural And Synthetic Fiber Reinforcement: Self-Healing, Shape-Memory, And Fiber Recyclability, Sakil Mahmud, John Konlan, Jenny Deicaza, Rachel Anna Schmidt, Guoqiang Li

Faculty Publications

Natural fibers have high potential as renewable reinforcement for polymers; however, their lower load-carrying capacity compared to synthetic fibers significantly limits the wide application in fiber-reinforced polymer composites. In laminated composite beams under bending load, the normal stress is the highest on the top and bottom layers but is zero at the mid-plane, with almost a linear normal strain distribution. Although the shear stress is the highest at the mid-plane, it may not be a major concern as most polymers can survive the high shear stress. Using this concept, we have designed a hybrid fiber reinforcement in a gradient manner: …

Contingency And Contestation In Christianity And Liberalism, Michael P. Moreland

Faculty Publications

No abstract provided.

Perturbative Aspects Of Cpt-Even Lorentz-Violating Scalar Chromodynamics, Brett Altschul, L. C.T. Brito, J. C.C. Felipe, S. Karki, A. C. Lehum, A. Yu Petrov

Faculty Publications

In this work, we formulate the theory of Lorentz-violating scalar quantum chromodynamics with an arbitrary non-Abelian gauge group. This theory belongs to the class of models encompassed by the standard model extension framework. At the lowest order in the theory's Lorentz violation parameters, we calculate the divergent quantum corrections, including the renormalization group β-functions of the theory. The Lorentz-violating sector is shown to be scale invariant if there is a particular relation between the couplings.

The Everydayness Of Instructional Design And The Pursuit Of Quality In Online Courses, Jason K. Mcdonald

Faculty Publications

This article reports research into the everydayness of instructional design (meaning designers’ daily routines, run-of-the-mill interactions with colleagues, and other, prosaic forms of social contact), and how everydayness relates to their pursuit of quality in online course design. These issues were investigated through an ethnographic case study, centered on a team of instructional designers at a university in the United States. Designers were observed spending significant amounts of time engaged in practices of course refinement, meaning mundane, workaday tasks like revising, updating, fine-tuning, or fixing the courses to which they were assigned. Refining practices were interrelated with, but also experienced …

User Guide For Urban Canopy Modeling In Wrf. Version 1.0, Corey L. Smithson, Natalie J. White, Hans R. Klomp, Eric C. Monson, Bradley R. Adams

Faculty Publications

Researchers at Brigham Young University (BYU) have developed this guide for running a WRF simulation using a single layer urban canopy model (UCM). This was developed specifically for the Greater Salt Lake Area but is adaptable to other urban areas. This guide includes information on running WRF simulations to study theoretical urban growth scenarios.

Vortex Particle Method For Electric Ducted Fan In Non-Axisymmetric Flow, Eduardo Alvarez, Cibin Joseph, Andrew Ning

Faculty Publications

The vortex particle method has been reformulated in recent work as a large eddy simulation (LES) in a scheme that is both meshless and numerically stable, solving long-standing issues of numerical stability. In this study, we build upon this meshless LES scheme to create a simulation framework for electric ducted fans. This poses the challenge of introducing solid boundaries in the vorticity form of the Navier-Stokes equations without a mesh. Rotor blades are introduced in our computational domain through an actuator line model (ALM) following well-established practices for LES. A novel, vorticity-based, actuator surface model (ASM) is developed for the …

“And God Blessed The Seventh Day And Sanctified It”: The Sabbath At Creation, Dedications, And Christ’S Theophany In 3 Nephi, Dan L. Belnap

Faculty Publications

The Creation narrative, found in various places within the canon of scripture of The Church of Jesus Christ of Latter-day Saints, describes the institution of two different types of time. The first type of time is established in the “fourth day” with the placement of the astronomical bodies, which act as markers “for signs, and for seasons, and for days, and for years”—that is, common time (Genesis 1:14; Moses 2:14). The second type of time is established in the “seventh day,” when the Lord rests from his labors. Situated as it was at the conclusion of the physical creation and …

Active Learning Methodologies In A High Stakes Graduate Nursing Program, Nina Mclain, Mary Jane Collins, Lawanda Baskin

Faculty Publications

Active learning with student engagement has been demonstrated to improve knowledge retention and improve learning in graduate education. Nurse anesthesia education has traditionally been taught using lecture with slide presentations without considering student centered learning. Much attention has been given to active learning strategies to promote student engagement and content retention, yet little information exists regarding student preferences for in higher level graduate nursing courses. This mixed-methods study aimed to examine student learning preferences for seven different instructional methodologies; traditional lecture, a problem-based learning exercise, reading with workbook assignments, development of cognitive aids, game-based learning, practice questions, and a case …

Ten‐Year Cardiovascular Disease Risk Score And Cognitive Function Among Older Adults: The National Health And Nutrition Examination Survey 2011 To 2014, Jingkai Wei, Hanzhang Xu, Angela D. Liese, Anwar T. Nerchant Sc.D, Mph, Dmd, Liang Wang, Chih-Hsiang Yang, Matthew C. Lohman, Monique J. Brown Ph.D., Mph, Tiansheng Wang, Daniela B. Friedman Ph.D.

Faculty Publications

BACKGROUND: The Framingham 10-year cardiovascular disease risk score, which is based on age, sex, smoking, total cholesterol, high-density lipoprotein-cholesterol, blood pressure, and diabetes, has been found to be associated with cognitive health, but these findings have not been validated in a representative sample in the United States. We aimed to examine the associations of Framingham risk score with cognitive function among older adults in a nationally representative sample, as well as by race or ethnicity, education, and family income.

METHODS AND RESULTS: A total of 2254 older adults ≥60years (57% female, 79% non-Hispanic White) in the National Health and Nutrition …

Contrasting Responses Of Atlantic And Pacific Tropical Cyclone Activity To Atlantic Multidecadal Variability, Huanping Huang, William D. Collins, Christina M. Patricola, Yohan Ruprich-Robert, Paul A. Ullrich, Alexander J. Baker

Faculty Publications

This research assesses the influences of Atlantic Multidecadal Variability (AMV) on global tropical cyclones (TCs) using two large ensembles of idealized global climate model simulations with opposite signs of AMV forcings superimposed (i.e., AMV+ and AMV–). We first detect TCs and then compare TC activity by basin in the two AMV experiments. We find contrasting responses of Atlantic and Pacific TC frequency to the AMV anomalies. Compared to AMV–, AMV+ significantly increases TC frequency in the North Atlantic, including those making landfalls. The increase is explained by warmer sea surface temperature, higher relative humidity, increased relative vorticity, and weaker vertical …

The Coralhydro2k Database: A Global, Actively Curated Compilation Of Coral Δ18o And Sr/Ca Proxy Records Of Tropical Ocean Hydrology And Temperature For The Common Era, Rachel M. Walter, Hussein R. Sayani, Thomas Felis, Kim M. Cobb, Nerilie J. Abram, Ariella K. Arzey, Alyssa R. Atwood, Logan D. Brenner, Émilie P. Dassié, Kristine L. Delong, Bethany Ellis, Julien Emile-Geay, Matthew J. Fischer, Nathalie F. Goodkin, Jessica A. Hargreaves, K. Halimeda Kilbourne, Hedwig Krawczyk, Nicholas P. Mckay, Andrea L. Moore, Sujata A. Murty, Maria Rosabelle Ong, Riovie D. Ramos, Emma V. Reed, Dhrubajyoti Samanta, Sara C. Sanchez, Jens Zinke

Faculty Publications

The response of the hydrological cycle to anthropogenic climate change, especially across the tropical oceans, remains poorly understood due to the scarcity of long instrumental temperature and hydrological records. Massive shallow-water corals are ideally suited to reconstructing past oceanic variability as they are widely distributed across the tropics, rapidly deposit calcium carbonate skeletons that continuously record ambient environmental conditions, and can be sampled at monthly to annual resolution. Climate reconstructions based on corals primarily use the stable oxygen isotope composition (δ18O), which acts as a proxy for sea surface temperature (SST), and the oxygen isotope composition of seawater (δ18Osw), a …

Progress Toward A Comprehensive Model For Mass Transfer In Structured Packings, Jack Wilfert, Brian F. Hanley

Faculty Publications

Significant effort has been devoted to the study of mass transfer in sheet metal structured packings over the past half century. A number of mass transfer correlations have appeared in the literature as a result of those efforts. Unfortunately, none of these correlations has shown itself to be reliable over the full range of chemical systems, column operating conditions, and packing topologies encountered today. In an attempt to rectify some of the shortcomings of earlier correlations for sheet metal structured packings, we have employed a new data analysis methodology which simultaneously fits «HETP»data and mass transfer area data. The correlation …

Protocol For Developing A Personalised Prediction Model For Viral Suppression Among Under-Represented Populations In The Context Of The Covid-19 Pandemic, Jiajia Zhang Ph.D., Xueying Yang Ph.D., Sharon Weissman, Xiaoming Li Ph.D., Bankole Olatosi Ph.D.

Faculty Publications

Introduction Sustained viral suppression, an indicator of long-term treatment success and mortality reduction, is one of four strategic areas of the 'Ending the HIV Epidemic' federal campaign launched in 2019. Under-represented populations, like racial or ethnic minority populations, sexual and gender minority groups, and socioeconomically disadvantaged populations, are disproportionately affected by HIV and experience a more striking virological failure. The COVID-19 pandemic might magnify the risk of incomplete viral suppression among under-represented people living with HIV (PLWH) due to interruptions in healthcare access and other worsened socioeconomic and environmental conditions. However, biomedical research rarely includes under-represented populations, resulting in biased …

Angular Correlations In The Β Decay Of B 8: First Tensor-Current Limits From A Mirror-Nucleus Pair, A. T. Gallant, N. D. Scielzo, G. Savard, J. A. Clark, M. Brodeur, F. Buchinger, D. P. Burdette, M. T. Burkey, S. Caldwell, J. E. Crawford, A. Czeszumska, C. M. Deibel, J. Greene, D. Heslop, T. Y. Hirsh, A. F. Levand, B. Longfellow, G. E. Morgan, P. Mueller, R. Orford, S. Padgett, N. Paul, A. Pérez Galván, A. Reimer, R. Segel, K. S. Sharma, K. Siegl, L. Varriano, B. J. Zabransky

Faculty Publications

We present the first measurement of the α-β-ν angular correlation in the Gamow-Teller β+ decay of B8. This was accomplished using the Beta-decay Paul Trap, expanding on our previous work on the β- decay of Li8. The B8 result is consistent with the V-A electroweak interaction of the standard model and, on its own, provides a limit on the exotic right-handed tensor current relative to the axial-vector current of |CT/CA|2< 0.013 at the 95.5% confidence level. This represents the first high-precision angular correlation measurements in mirror decays and was made possible through the use of an ion trap. By combining this B8 result with our previous Li8 results, we demonstrate a new pathway for increased precision in searches for exotic currents.

Coaching Elementary Teachers In Literacy: Does Feedback Type Matter To Low And High Implementers?, Elizabeth Cutrer, Erica Ellsworth Miller, Erjola Gjini, Melia Fonoimoana Garrett

Faculty Publications

For literacy coaches and teachers, feedback is an integral component of effective coaching. Yet, little is understood

about the interaction between feedback and high/low implementing teachers within coaching sessions. This multiple

case study explored the types of feedback literacy coaches provided both high and low implementing teachers over a

two-year period. In the first year, the literacy coaches provided at least twice as much instructional feedback as

emotional feedback to low-implementing teachers. Those teachers not only received more feedback in general, but the

feedback they received was primarily what they needed to do to improve. In contrast, during the same …

Uniqueness Of Relaxation Times Determined By Dielectric Spectroscopy, Mengchun Wu, Karin J. Bichler, Bruno Jakobi, Gerald J. Schneider

Faculty Publications

Dielectric spectroscopy is extremely powerful to study molecular dynamics, because of the very broad frequency range. Often multiple processes superimpose resulting in spectra that expand over several orders of magnitude, with some of the contributions partially hidden. For illustration, we selected two examples, (i) normal mode of high molar mass polymers partially hidden by conductivity and polarization and (ii) contour length fluctuations partially hidden by reptation using the well-studied polyisoprene melts as example. The intuitive approach to describe experimental spectra and to extract relaxation times is the addition of two or more model functions. Here, we use the empirical Havriliak-Negami …

Did The Washington Supreme Court Rule Correctly On The Capital Gains Tax?, David Gamage, Jared Walczak

Faculty Publications

The following two essays are David Gamage’s and Jared Walczak’s opening statements in their debate over Quinn v. Washington,1 the recent Washington Supreme Court decision upholding a state tax on capital gains as an excise tax. Gamage and Walczak, who differ on the decision’s merits and its implications for future Washington tax jurisprudence, intend to follow these statements with rebuttals and conclusions in a subsequent article.

Parameterization Of Size Of Organic And Secondary Inorganic Aerosol For Efficient Representation Of Global Aerosol Optical Properties, Haihui Zhu, Randall V. Martin, Betty Croft, Shixian Zhai, Chi Li, Liam Bindle, Jeffrey R. Pierce, Rachel Y.-W. Chang, Bruce E. Anderson, Luke D. Ziemba, Johnathan W. Hair, Richard A. Ferrare, Chris A. Hostetler, Inderjeet Singh, Deepangsu Chatterjee, Jose L. Jimenez, Pedro Campuzano-Jost, Benjamin A. Nault, Jack E. Dibb, Joshua S. Schwarz, Andrew Weinheimer

Faculty Publications

Accurate representation of aerosol optical properties is essential for the modeling and remote sensing of atmospheric aerosols. Although aerosol optical properties are strongly dependent upon the aerosol size distribution, the use of detailed aerosol microphysics schemes in global atmospheric models is inhibited by associated computational demands. Computationally efficient parameterizations for aerosol size are needed. In this study, airborne measurements over the United States (DISCOVER-AQ) and South Korea (KORUS-AQ) are interpreted with a global chemical transport model (GEOS-Chem) to investigate the variation in aerosol size when organic matter (OM) and sulfate–nitrate–ammonium (SNA) are the dominant aerosol components. The airborne measurements exhibit …

Search For B Mesogenesis At Babar, J. P. Lees, V. Poireau, E. Grauges, A. Palano, G. Eigen, D. N. Brown, Yu. G. Kolomensky, M. Fritsch, H. Koch, R. Cheaib, C. Hearty, T. S. Mattison, J. A. Mckenna, R. Y. So, V. E. Blinov, A. R. Buzykaev, V. P. Druzhinin, E. A. Kozyrev, Milind Purohit, Et. Al.

Faculty Publications

A new mechanism has been proposed to simultaneously explain the presence of dark matter and the matter-antimatter asymmetry in the Universe. This scenario predicts exotic B-meson decays into a baryon and a dark-sector antibaryon (ψD) with branching fractions accessible at B factories. We present a search for B→Λψ_D decays using data collected by the BABAR experiment at SLAC. This reaction is identified by fully reconstructing the accompanying B meson and requiring the presence of a single Λ baryon in the remaining particles. No significant signal is observed, and bounds on the B→Λψ …

Differences In Resilience And Mental Health Symptoms Among Us First Responders With Secure And Insecure Attachment, Donna Schuman, James Whitworth, Jeanine Galusha, Jose Carbajal, Warren Ponder, Kathryn Shahan, Katelyn Jetelina

Faculty Publications

Objective: This observational study aimed to determine whether attachment style predicted first responders' mental health and resilience. Method: Data were from a treatment-seeking sample of first responders (N = 237). Each participant completed six assessments measuring attachment, resilience, generalized anxiety, depression, suicidality, and posttraumatic stress disorder. Results: On the attachment assessment, 25.3%were categorized as secure, 19.0%as dismissive, 25.3% as preoccupied, and 30.4% as fearfully attached. As predicted, securely attached participants had the lowest scores for generalized anxiety, depression, suicidality, and posttraumatic stress disorder and the highest scores on the resiliency measure, followed by dismissive, preoccupied, and fearfully …

What Lawyers Can Teach Their Employed Law Students About 'Impactful Legal Writing', Douglas E. Abrams

Faculty Publications

This article concerns the value of teaching employed law students about the potency of “impactful legal writing” – legal writing that can have a substantial impact on someone other than the student writer. Much of the employer’s most instructive teaching about impactful legal writing occurs at the beginning of an assignment, rather than solely during review after the student has completed the assignment. This article identifies four ways an employed law student’s impactful writing when fulfilling assignments differs from the effect of students’ academic writing in law school. Each of the four ways enables the employer to deliver practical lessons …

Mathematics Library News, Aaron Lercher

Faculty Publications

Mathematics Library News is an LSU Libraries newsletter for members of the Mathematics and Experimental Statistics Departments, published roughly once each semester.

Niche Specialization And Community Niche Space Increase With Species Richness In Filter-Feeder Assemblages, Irene Sánchez González, Garrett W. Hopper, Jamie R. Bucholz, Megan E. Kubala, Jeffrey D. Lozier, Carla L. Atkinson

Faculty Publications

Ecological theory posits that higher species richness should be associated with greater exploitation of resources and niche packing resulting from either increasing species niche overlap or specialization of species' niches. Research evaluating niche theory in animals tends to focus on organisms among functional feeding guilds, while resource partitioning might be more critical within functional groups. Freshwater mussels (Family: Unionidae) are a diverse and imperiled group of animals that are ideal models to test niche occupancy due to their functional similarity as filter-feeders and their occurrence in spatially and temporally stable multispecies aggregations. We evaluated the relationship between species richness and …

Latino Paradox Or Black Exception? Race, Ethnicity, And Crime In The 21st Century, Edward S. Shihadeh, Raymond E. Barranco

Faculty Publications

George Floyd’s murder by a Minnesota police officer sparked outrage, protests, and a re-evaluation of racial inequities in America. Within criminology, we argue, that re-evaluation should include the Latino Paradox, the idea that Latino communities are an exception—a paradox—in that, while they face economic deprivation, they also possess a magical something that makes them resistant to social problems like crime. Unfortunately, this compels the more delicate question; what is the deficiency in Black communities that makes them so vulnerable to crime? However, as we argue here, the Latino Paradox forces a false comparison. Its assumptions with respect to crime are …