Digital Commons Network^™

Multidimensional Molecular High-Harmonic Spectroscopy: A Road Map For Charge Migration Studies, Daniel R. Tuthill, François Mauger, Timothy D. Scarborough, Robert R. Jones, Mette B. Gaarde, Kenneth Lopata, Kenneth J. Schafer, Louis F. Dimauro

Faculty Publications

© 2020 Elsevier Inc. This review discusses recent experimental and theoretical analyses of high-harmonic spectroscopy in small molecules, with the aim of characterizing charge migration. We discuss the formulation of molecular high-harmonic spectra followed by methods to extract molecular-target-specific information, both in experiments and ab initio simulations. We present measured and simulated high-harmonic spectra from carbon dioxide and carbonyl sulfide to illustrate the necessity for multidimensional analyses for high-harmonic spectroscopies that include both the spectral amplitude and phase. Leveraging these results, we examine how such multidimensional analyses pave the way for the study of charge migration with high-harmonic spectroscopy and …

Sixty-First Supplement To The American Ornithological Society's Check-List Of North American Birds, R. Terry Chesser, Shawn M. Billerman, Kevin J. Burns, Carla Cicero, Jon L. Dunn, Andrew W. Kratter, Irby J. Lovette, Nicholas A. Mason, Pamela C. Rasmussen, J. V. Remsen, Douglas F. Stotz, Kevin Winker

Faculty Publications

No abstract provided.

Frequent Fire Slows Microbial Decomposition Of Newly Deposited Fine Fuels In A Pyrophilic Ecosystem, Jacob R. Hopkins, Jean M. Huffman, William J. Platt, Benjamin A. Sikes

Faculty Publications

© 2020, Springer-Verlag GmbH Germany, part of Springer Nature. Frequent fires maintain nearly 50% of terrestrial ecosystems, and drive ecosystem changes that govern future fires. Since fires are dependent on available plant or fine fuels, ecosystem processes that alter fine fuel loads like microbial decomposition are particularly important and could modify future fires. We hypothesized that variation in short-term fire history would influence fuel dynamics in such ecosystems. We predicted that frequent fires within a short-time period would slow microbial decomposition of new fine fuels. We expected that fire effects would differ based on dominant substrates and that fire history …

Genotyping Xylella Fastidiosa In Rabbiteye Blueberry In Louisiana, Usa, Mary Helen Ferguson, Christopher A. Clark, Barbara J. Smith

Faculty Publications

Rabbiteye blueberry (Vaccinium ashei = V. virgatum) comprises much of the blueberry acreage in the southeastern USA states of Louisiana and Mississippi. Three genotypes of X. fastidiosa were identified from rabbiteye blueberry in Louisiana by multilocus sequence typing. A genotype that was found at two orchards, sequence type (ST) 42, was identical to one previously found in southern highbush blueberry in Georgia and two non-blueberry native species in Texas. Two newly identified genotypes shared most alleles with X. fastidiosa strains considered, like ST 42, to be part of a group that is believed to have resulted from recombination between X. …

Adaptive Responses To Maternal Nutrient Restriction Alter Placental Transport In Ewes, Ashley K. Edwards, Sorin M. Mcknight, Katharine Askelson, Jason R. Mcknight, Kathrin A. Dunlap, M. Carey Satterfield

Faculty Publications

Introduction: Maternal nutrient partitioning, uteroplacental blood flow, transporter activity, and fetoplacental metabolism mediate nutrient delivery to the fetus. Inadequate availability or delivery of nutrients results in intrauterine growth restriction (IUGR), a leading cause of neonatal morbidity and mortality. Maternal nutrient restriction can result in IUGR, but only in an unforeseeable subset of individuals. Methods: To elucidate potential mechanisms regulating fetal nutrient availability, singleton sheep pregnancies were generated by embryo transfer. Pregnant ewes received either a 50% NRC (NR; n = 24) or 100% NRC (n = 7) diet from gestational Day 35 until necropsy on Day 125. Maternal weight did …

Erratum: Small-Molecule Inhibitors Of Inward Rectifier Potassium (Kir) Channels Reduce Bloodmeal Feeding And Have Insecticidal Activity Against The Horn Fly (Diptera: Muscidae) (Journal Of Medical Entomology (2020) Doi: 10.1093/Jme/Tjaa015), Z. Li, F. Guerrero, A. A. Pérez De León, L. D. Foil, D. R. Swale

Faculty Publications

Correction of "Li Z., F. Guerrero, A. A. Pérez de León, L. D. Foil, and D. R. Swale. 2020. Small-Molecule Inhibitors of Inward Rectifier Potassium (Kir) Channels Reduce Bloodmeal Feeding and Have Insecticidal Activity Against the Horn Fly (Diptera: Muscidae). J. Med. Entomol."DOI: 10.1093/jme/tjaa015. In the original version of this article, the chemical structure of ML297 in Figure 1 was incorrect. The figure has been updated to contain the correct structure. The authors regret the error. (Figure Presented).

Mitochondrial Genomes And Thousands Of Ultraconserved Elements Resolve The Taxonomy And Historical Biogeography Of The Euphonia And Chlorophonia Finches (Passeriformes: Fringillidae), Tyler S. Imfeld, F. Keith Barker, Robb T. Brumfield

Faculty Publications

© 2020 American Ornithological Society. Relationships of the Neotropical finches in the genera Euphonia and Chlorophonia (Fringillidae: Euphoniinae) have been clarified by recent molecular studies, but species-level relationships within this group have not been thoroughly addressed. In this study, we sampled specimens representing every recognized species of these genera, in addition to 2 outgroup taxa, and used target enrichment to sequence thousands of ultraconserved element (UCE) loci, as well as mitochondrial DNA reconstructed from off-target reads, from each specimen to infer these relationships. We constructed both concatenation and coalescent-based estimates of phylogeny from this dataset using matrices of varying levels …

Phylogeography Of The Variable Antshrike (Thamnophilus Caerulescens), A South American Passerine Distributed Along Multiple Environmental Gradients, Sergio D. Bolívar-Leguizamón, Luís F. Silveira, Elizabeth P. Derryberry, Robb T. Brumfield, Gustavo A. Bravo

Faculty Publications

© 2020 Elsevier Inc. The Neotropics show a wealth of distributional patterns shared by many co-distributed species. A distinctive pattern is the so-called “circum-Amazonian distribution,” which is observed in species that do not occur in Amazonia but rather along a belt of forested habitats spanning south and east of Amazonia, the Andean foothills, and often into the Venezuelan Coastal Range and the Tepuis. Although this pattern is widespread across animals and plants, its underlying biogeographic mechanisms remain poorly understood. The Variable Antshrike (Thamnophilus caerulescens) is a sexually dimorphic suboscine passerine that exhibits extreme plumage variation and occurs along the southern …

Multigrid Methods For Saddle Point Problems: Optimality Systems, Susanne C. Brenner, Sijing Liu, Li Yeng Sung

Faculty Publications

We develop multigrid methods for an elliptic distributed optimal control problem on convex domains that are robust with respect to a regularization parameter. We prove the uniform convergence of the W-cycle algorithm and demonstrate the performance of V-cycle and W-cycle algorithms through numerical experiments.

Sequential Predictors For Delay Compensation For Perturbed Discrete Time Systems, Frederic Mazenc, Michael Malisoff

Faculty Publications

We provide sequential predictors for delayed time-varying discrete time linear systems with outputs, where the system and output measurements are perturbed by uncertainty. Our predictors ensure input-to-state stability with respect to uncertainties in the system and in the output, under arbitrarily long input delays. Our strategy is to introduce a number of dynamical extensions that equals the length of the input delay. Our example illustrates the usefulness of our control design.

Sampled-Data Estimator For Nonlinear Systems With Arbitrarily Fast Rate Of Convergence, Frederic Mazenc, Michael Malisoff, Silviu Iulian Niculescu

Faculty Publications

We study continuous-time nonlinear systems with discrete measurements. We provide an estimate of the state variable that converges with a rate of convergence that can be made arbitrarily large by reducing the size of the largest sampling interval. Our proof of the convergence result is based on a recently developed trajectory based approach.

Mechanical Properties And Performance Under Laboratory And Field Conditions Of A Lightweight Fluorogypsum-Based Blend For Economic Artificial-Reef Construction, Yasser Bigdeli, Michele Barbato, Charles D. Lofton, Maria Teresa Gutierrez-Wing, Kelly A. Rusch

Faculty Publications

This paper investigates the mechanical properties under laboratory and field conditions of a concretelike blend made of fluorogypsum (FG), fly ash, and portland cement for artificial-reef construction, which is referred to as a FG-based blend. The 28-day compressive strength and relative volumetric expansion of the FG-based blend were statistically characterized. After 1 year of immersion in brackish water under field conditions, the compressive strength of the FG-based blend experienced a moderate reduction when compared with material under laboratory conditions but did not degrade below its 28-day value. Visual examination of the immersed specimens indicated that aquatic organisms are attracted to …

Effects Of Hurricane Harvey On The Trophic Status Of Juvenile Sport Fishes (Cynoscion Nebulosus, Sciaenops Ocellatus) In An Estuarine Nursery, Philip Matich, Kaya B. Moore, Jeffrey D. Plumlee

Faculty Publications

Understanding the implications of environmental disturbance is of growing importance as climate change and extreme weather events increasingly threaten estuaries and other coastal ecosystems. Among species at risk in estuarine habitats, sport fishes are of particular interest to conservation and management agencies, because of their ecological and economic value. Here, we evaluate the effects of Hurricane Harvey on the abundance, diet, and body condition of age-0 red drum (Sciaenops ocellatus) and spotted seatrout (Cynoscion nebulosus) in Powderhorn Lake, a nearshore estuary in Texas, USA. Catch data from seines indicated that the abundances of age-0 red drum and spotted seatrout were …

The Genetic And Cultural Evolution Of Unsustainability, Brian F. Snyder

Faculty Publications

Anthropogenic changes are accelerating and threaten the future of life on earth. While the proximate mechanisms of these anthropogenic changes are well studied (e.g., climate change, biodiversity loss, population growth), the evolutionary causality of these anthropogenic changes have been largely ignored. Anthroecological theory (AET) proposes that the ultimate cause of anthropogenic environmental change is multi-level selection for niche construction and ecosystem engineering. Here, we integrate this theory with Lotka’s Maximum Power Principle and propose a model linking energy extraction from the environment with genetic, technological and cultural evolution to increase human ecosystem carrying capacity. Carrying capacity is partially determined by …

River Avulsions And Sedimentary Evolution Of The Luanhe Fan-Delta System (North China) Since The Late Pleistocene, Lei He, Alessandro Amorosi, Siyuan Ye, Chunting Xue, Shixiong Yang, Edward A. Laws

Faculty Publications

The Luanhe Fan-Delta (LFD) is one of the most important coastal deltas in North China. Numerous investigations on the late Quaternary evolution of this fan-delta system have been implemented during the 1980s. However, few detailed sedimentologic studies have been undertaken. Based on comprehensive analysis of sedimentary facies, grain size, microfossils, radiocarbon dates (AMS¹⁴C) and optically stimulated luminescence (OSL) ages from three ~30 m-long cores, along with recent reports from a series of cores and seismic profiles from the coastal areas, we reconstructed the detailed late Quaternary sedimentary evolution of the northern Bohai coast, which evolved from a coastal …

Current Status Of The Multinational Arabidopsis Community, Geraint Parry, Geraint Parry, Nicholas J. Provart, Nicholas J. Provart, Siobhan M. Brady, Siobhan M. Brady, Baris Uzilday, Keith Adams, Wagner Araújo, Sébastien Aubourg, Sacha Baginsky, Erica Bakker, Katja Bärenfaller, Jacqui Batley, Mike Beale, Mark Beilstein, Youssef Belkhadir, Tanya Berardini, Joy Bergelson, Francisca Blanco-Herrera, Hans Peter Braun, Steve Briggs, Lynette Brownfield, Maura Cardarelli, Marcos Castellanos-Uribe, Gloria Coruzzi, Maheshi Dassanayake, Geert De Jaeger, Brian Dilkes, Colleen Doherty, Joe Ecker, Pat Edger, David Edwards

Faculty Publications

The multinational Arabidopsis research community is highly collaborative and over the past thirty years these activities have been documented by the Multinational Arabidopsis Steering Committee (MASC). Here, we (a) highlight recent research advances made with the reference plant Arabidopsis thaliana; (b) provide summaries from recent reports submitted by MASC subcommittees, projects and resources associated with MASC and from MASC country representatives; and (c) initiate a call for ideas and foci for the “fourth decadal roadmap,” which will advise and coordinate the global activities of the Arabidopsis research community.

Fully Automated Pipeline For Body Composition Estimation From 3d Optical Scans Using Principal Component Analysis: A Shape Up Study, Sima Sobhiyeh, Nathan Borel, Marcelline Dechenaud, Clinten A. Graham, Michael Wong, Peter Wolenski, John Shepherd, Steven B. Heymsfield

Faculty Publications

The increasing prevalence and adaptability of 3D optical scan (3DO) technology has invoked many recent studies which use 3DO scanning as a convenient and inexpensive means for predicting body composition and health risks. The Shape Up studies seek a device-agnostic solution for body composition estimation based on principal component analysis (PCA). This paper reports a progress made on Shape Up's previous work which served as a criterion analysis for PCA-based body composition and health risk prediction. This study presents proof-of-concept for a novel automated landmark detection step that allows for a fully automated PCA-based approach to body composition estimation that …

Can Children Catch Up From The Consequences Of Undernourishment? Evidence From Child Linear Growth, Developmental Epigenetics, And Brain And Neurocognitive Development, Jef L. Leroy, Edward A. Frongillo Jr., Pragya Dewan, Maureen M. Black, Robert A. Waterland

Faculty Publications

Recovery from nutritionally induced height deficits continues to garner attention. The current literature on catch-up growth, however, has 2 important limitations: wide-ranging definitions of catch-up growth are used, and it remains unclear whether children can recover from the broader consequences of undernutrition. We addressed these shortcomings by reviewing the literature on the criteria for catch-up in linear growth and on the potential to recover from undernutrition early in life in 3 domains: linear growth, developmental epigenetics, and child brain and neurocognitive development. Four criteria must be met to demonstrate catch-up growth in height: after a period in which a growth-inhibiting …

Bar Bytes: Fastcase As A Supplement To Westlaw, Eve Ross

Faculty Publications

No abstract provided.

A Late Eocene-Oligocene Through-Flowing River Between The Upper Yangtze And South China Sea, Peter D. Clift, Andrew Carter, Anna Wysocka, Long Van Hoang, Hongbo Zheng, Nikki Neubeck

Faculty Publications

©2020. American Geophysical Union. All Rights Reserved. We test the hypothesis of a major Paleogene river draining the SE Tibetan Plateau and the central modern Yangtze Basin that then flowed south to the South China Sea. We test this model using U-Pb dated detrital zircon grains preserved in Paleogene sedimentary rocks in northern Vietnam and SW China. We applied a series of statistical tests to compare the U-Pb age spectra of the rocks in order to highlight differences and similarities between them and with potential source bedrocks. Monte Carlo mixing models imply that erosion was dominantly derived from the Indochina …

Light And Temperature Mediate Algal Simulation Of Heterotrophic Activity On Decomposing Leaf Litter, Cody A. Pope, Halvor M. Halvorson, Robert H. Findlay, Steven N. Francoeur, Kevin A. Kuehn

Faculty Publications

1. Recent evidence suggests that periphytic algae stimulate plant litter heterotrophs (fungi and bacteria) in the presence of light, but few studies have tested whether this stimulation varies across gradients of light, which may covary with temperature.
2. We exposed field‐conditioned Typha domingensis litter to fully‐crossed, short‐term gradients of temperature (15, 20, 25, and 30°C) and light (0, 25, 53, 123, and 388 µmol quanta m⁻² s⁻¹) and measured responses of litter‐associated algal, fungal, and bacterial production rates and β‐glucosidase, β‐xylosidase, and phenol oxidase enzyme activities in the laboratory.
3. Increased light stimulated algal production rates, from immeasurable production under …

Recommendations For Online Teaching, St. John's University School Of Law Online & Hybrid Teaching Task Force, Renee Nicole Allen, Jennifer Baum, Catherine Baylin Duryea, Robert Ruescher, Courtney Selby, Eric Shannon, Rachel Smith, Jeff Sovern

Faculty Publications

This is a collection of recommendations drawn from a variety of sources, including our colleagues, students, webinars, books, articles, podcasts, and our own experimentation. It is not our expectation that any individual professor would adopt all of these suggestions and indeed no one of us intends to. Instead, we hope that some of these are helpful to you. Some suggestions deal with the nuts and bolts of teaching online while others with how to accomplish broader goals.

The general recommendations are broadly applicable to all courses taught online, while the individual class-type recommendations are intended to complement and augment the …

Improvement Of Ti/Tin Interfacial Shear Strength By Doping – A First Principles Density Functional Theory Study, Abu Shama Mohammad Miraz, Eboni Williams, W. J. Meng, Bala R. Ramachandran, Collin D. Wick

Faculty Publications

The dependence of interfacial shear resistance on the substitutional doping of Al, V and Cr at the Ti/TiN interface was studied using first principles Density Functional Theory. Only Al dopants had negative enthalpies of mixing in Ti and at the Ti/TiN interface. Generalized stacking fault energies (GSFE) were calculated and their barriers were used as an estimate of shear resistance. The addition of Al increased the GSFE barriers of pure Ti when they were in adjacent atomic layers. It was found that when Al atoms were in contact, they had a destabilizing effect that led to the increased barriers in …

Driver Compliance And Safety Effects Of Three-Foot Bicycle Passing Laws, Nelida Herrera, Scott A. Parr, Brian Wolshon

Faculty Publications

The long and tragic history of bicycle/vehicle collisions has led to calls for legislative action to provide greater safety for bicyclists on the roadways. In the United States, “Three-foot bicycle passing laws,” are among the most common. In general, these laws require motor vehicles overtaking or passing bicyclists to do so by providing a minimum of 3 ft of lateral separation. The goal of this paper was to investigate how these laws substantively affect driver behavior. In this paper, a driving simulator was used to quantify the overtaking behavior, in terms of lateral overtaking distance and speed, of drivers in …

Temporal And Stoichiometric Patterns Of Algal Stimulation Of Litter-Associated Heterotrophic Microbial Activity, Steven N. Francoeur, Robert K. Neely, Savannah Underwood, Kevin A. Kuehn

Faculty Publications

1. Periphyton communities associated with submerged plant detritus contain interacting autotrophic and heterotrophic microbes, and are sites of extracellular enzymatic activity. The strength and nature of these interactions might be expected to change over time as microbial communities develop on plant litter. Microbial interactions and enzymatic activity can be altered by nutrient availability, suggesting that litter stoichiometry could also affect these phenomena.
2. We grew wetland plants under ambient and nutrient‐enriched conditions to generate plant litter of differing nutrient content. In two experiments, we investigated: (1) the influence of algal photosynthesis on fungal and bacterial production and the activities of four extracellular …

The Arabidopsis Transcription Factor Aintegumenta Orchestrates Patterning Genes And Auxin Signaling In The Establishment Of Floral Growth And Form, Beth A. Krizek, Ivory C. Blakley, Yen Yi Ho, Nowlan Freese, Ann E. Loraine

Faculty Publications

Understanding how flowers form is an important problem in plant biology, as human food supply depends on flower and seed production. Flower development also provides an excellent model for understanding how cell division, expansion and differentiation are coordinated during organogenesis. In the model plant Arabidopsis thaliana, floral organogenesis requires AINTEGUMENTA (ANT) and AINTEGUMENTA-LIKE 6 (AIL6)/PLETHORA 3 (PLT3), two members of the Arabidopsis AINTEGUMENTA-LIKE/PLETHORA (AIL/PLT) transcription factor family. Together, ANT and AIL6/PLT3 regulate aspects of floral organogenesis, including floral organ initiation, growth, identity specification and patterning. Previously, we used RNA-Seq to identify thousands of genes with disrupted expression in ant ail6 …

Mason City's Prairie Gems: And How Australians Found Them, Roy R. Behrens

Faculty Publications

No abstract provided.

The Combined Effect Of Exercise And Behavioral Therapy For Depression And Anxiety: Systematic Review And Meta−Analysis, Terence Moriarty, Kelsey C. Bourbeau, Akeisha Ayanniyi, Micah Zuhl

Faculty Publications

Behavioral therapy (BT) and exercise are efficacious treatments for depression and anxiety when employed separately. The combination of BT and exercise (BT+Ex) may augment improvements but the combined effect of these therapies is not fully elucidated. The purpose of this meta-analysis was to determine if BT+Ex yielded a significant reduction in depression and anxiety symptoms compared to BT alone (BT). Randomized controlled studies published prior to September 2019 were searched among several databases (PUBMED, MEDLINE, PsychArticle, and Cochrane Central Register of Clinical Trials). Studies that measured depression and anxiety symptoms following BT+Ex vs. BT were extracted and analyzed. The effect …

When Is Police Interrogation Really Police Interrogation? A Look At The Application Of The Miranda Mandate, Paul Marcus

Faculty Publications

It seemed so clear a half-century ago. After years of frustration reviewing the voluntariness of confessions on a case-by-case basis, a Supreme Court majority in Miranda v. Arizona held that incriminating statements resulting from interrogation while in custody would not be admissible at trial to prove guilt unless warnings were given to advise a suspect of rights of silence and an attorney. It is disappointing to report that if anything has been established over the past 50 years, it is that this mandate isn't clear at all. It turns out that police officers do not necessarily give exactly the warnings …

Toolkit Or Tinderbox? When Legal Systems Interface Conflict, Christie S. Warren

Faculty Publications

No abstract provided.