Digital Commons Network^™

Three Learning Contexts As Paths To Preservice Instrumental Music Teachers' Score Analysis, Rehearsal Planning, And Instructional Readiness: An Exploratory Study In Professional Development, Jennifer Lee Pulling

LSU Doctoral Dissertations

Despite an abundance of evidence-based research pointing to the effectiveness of long-term teacher professional development (PD) (Darling-Hammond, Hyler & Gardner, 2017; Desimone, 2009), instrumental music teachers who seek to improve their teaching practices are limited to and often prefer short-term PD opportunities (Bauer, 2007; West, 2020). In recent years, a growing knowledge base focused on music teacher PD has given attention to long-term, content-based and collaborative music PD (Conway, 2015; Kastner, 2014; Stanley, Snell & Edgar, 2014) while a dearth of evidence-based research exists on short-term music PD (Bauer, 2007; West, 2020). The purpose of this collective case study was …

Laser Surface Treatment And Laser Powder Bed Fusion Additive Manufacturing Study Using Custom Designed 3d Printer And The Application Of Machine Learning In Materials Science, Hao Wen

LSU Doctoral Dissertations

Selective Laser Melting (SLM) is a laser powder bed fusion (L-PBF) based additive manufacturing (AM) method, which uses a laser beam to melt the selected areas of the metal powder bed. A customized SLM 3D printer that can handle a small quantity of metal powders was built in the lab to achieve versatile research purposes. The hardware design, electrical diagrams, and software functions are introduced in Chapter 2. Several laser surface engineering and SLM experiments were conducted using this customized machine which showed the functionality of the machine and some prospective fields that this machine can be utilized. Chapter 3 …

Hessian Formulas And Estimates For Parabolic Schrödinger Operators, Xue-Mei Li

Journal of Stochastic Analysis

No abstract provided.

Remembering Kunita-San, Ken-Iti Sato

Journal of Stochastic Analysis

No abstract provided.

Indicators Of Senescence And Their Relationship With The Antioxidant Response Element In Ovarian Cancer Cells—Toward A More Encompassing View Of Enzyme Activity Levels In Cells, Shaniqua Analycia Hayes

LSU Doctoral Dissertations

Enzymes and other related proteins are promising targets as biomarkers for cancer diagnostics, and it is therefore important to be able to quantify intracellular enzyme activity levels, not just presence of enzyme. Thus, there is a great need for the development of methods that offer spatiotemporal quantification of intracellular enzyme activity levels in respiring 2- and 3-dimensional cultures or their sample-processed variants. Previous studies have demonstrated that ß-gal is upregulated in senescence and in select ovarian cancers, and its expression/activity is upregulated when cells are under oxidative stress conditions. To that end, the primary goal of this work was to …

Devices And Methods For Deep Uv Laser Ablation, Kermit K. Murray, Fabrizio Donnarumma, Oluwaremilekun Lawai

College of Science Patents

Laser ablation devices and methods including laser ablation are provided. The ablation devices can include a deep UV laser. Dual-laser ablation devices are also provided. Biomolecules can be ablated using a combination of deep UV laser and nanoelectrospray, resulting in protonated sample molecules.

Seed Treatment With Jasmonic Acid And Methyl Jasmonate Induces Resistance To Insects But Reduces Plant Growth And Yield In Rice, Oryza Sativa, Santhi Bhavanam, Michael Stout

Faculty Publications

When applied exogenously to plants, jasmonates [i.e., jasmonic acid (JA) and methyl jasmonate (MeJA)] increase plant resistance against herbivores, and their use in pest management has been suggested. For integration into pest management programs, the benefits of the resistance induced by jasmonates must outweigh the costs of jasmonates on plant growth and yield. A previous field study in rice found that seed treatment with MeJA reduced densities of the rice water weevil, Lissorhoptrus oryzophilus, but also reduced plant growth. Yields from MeJA plots were similar to yields from control plots. Because this study was conducted under field conditions with natural …

The Life And Scientific Work Of Hiroshi Kunita, Yasushi Ishikawa

Journal of Stochastic Analysis

No abstract provided.

Cocrfeni High-Entropy Alloy As An Enhanced Hydrogen Evolution Catalyst In An Acidic Solution, Frank Mckay, Yuxin Fang, Orhan Kizilkaya, Prashant Singh, Duane D. Johnson, Amitava Roy, David P. Young, Phillip T. Sprunger, John C. Flake, William A. Shelton, Ye Xu

Faculty Publications

High-entropy alloys (HEAs) have intriguing material properties, but their potential as catalysts has not been widely explored. Based on a concise theoretical model, we predict that the surface of a quaternary HEA of base metals, CoCrFeNi, should go from being nearly fully oxidized except for pure Ni sites when exposed to O2 to being partially oxidized in an acidic solution under cathodic bias, and that such a partially oxidized surface should be more active for the electrochemical hydrogen evolution reaction (HER) in acidic solutions than all the component metals. These predictions are confirmed by electrochemical and surface science experiments: the …

Palynology And Paleoclimatology Of The Chicxulub Impact Crater In The Early Paleogene, Vann Smith

LSU Doctoral Dissertations

At the end of the Cretaceous Period, a large bolide impacted the Earth and formed the Chicxulub impact crater in the Yucatán Peninsula, Mexico. In 2016, International Ocean Discovery Program (IODP) Expedition 364 Site M0077 drilled into the buried peak ring of the crater, recovering a marine Paleocene to early Eocene post-impact section deposited on top of the impact breccia. Palynological analysis of 195 samples from the post-impact section has yielded the first pre-Holocene vegetational record from inside the Chicxulub impact crater and the first palynological record of the recovery of life following the end-Cretaceous mass extinction from inside the …

Memories Of Professor Hiroshi Kunita, Ichiro Shigkeawa

Journal of Stochastic Analysis

No abstract provided.

On The Works Of Hiroshi Kunita In The Sixties, Masatoshi Fukushima

Journal of Stochastic Analysis

No abstract provided.

Personal Memories Of Hiroshi Kunita, David Elworthy

Journal of Stochastic Analysis

No abstract provided.

An Assessment Of Government Capacity Building To Restrict The Marketing Of Unhealthy Food And Non-Alcoholic Beverage Products To Children In The Region Of The Americas, Sofía Rincón-Gallardo Patiño, Fabio Da Silva Gomes, Steven Constantinou, Robin Lemaire, Valisa E. Hedrick, Elena L. Serrano, Vivica I. Kraak

Faculty Publications

No abstract provided.

Soil Organic Matter Accretion, Complexity, And Degradation In Eroding Coastal Wetlands, Yadav Sapkota

LSU Doctoral Dissertations

Coastal wetlands are one of the most productive ecosystems on the earth. They are increasingly recognized and valued for atmospheric carbon sequestration and storage for a long time. However, coastal wetlands acreage is shrinking, across the globe, due to several factors including sea-level rise, local subsidence, edge erosion, extreme weather events, and anthropogenic activities. The coastal wetlands in the Mississippi River Deltaic Plain experience high relative sea-level rise, limited sediment supply, and high marsh edge erosion, leading to substantial land loss. These wetlands require restoration and conservation to slown down land loss and continue providing ecosystem services. The coastal restoration …

Resource Theory Of Unextendibility And Nonasymptotic Quantum Capacity (), Eneet Kaur, Siddhartha Das, Mark M. Wilde, Andreas Winter

Faculty Publications

In this paper, we introduce the resource theory of unextendibility as a relaxation of the resource theory of entanglement. The free states in this resource theory are the -extendible states, associated with the inability to extend quantum entanglement in a given quantum state to multiple parties. The free channels are -extendible channels, which preserve the class of -extendible states. We define several quantifiers of unextendibility by means of generalized divergences and establish their properties. By utilizing this resource theory, we obtain nonasymptotic upper bounds on the rate at which quantum communication or entanglement preservation is possible over a finite number …

Development Of A Multi-Level Dynamic Model To Measure The Resilience Level Of Transportation Infrastructure Networks, Sharareh Kermanshachi, Jianling Li, Thahomina Jahan Nipa

Data

The recent increase in disasters is making the largest critical infrastructure system namely the transportation infrastructure system susceptible to unexpected damage. Discontinuation of services provided by transportation infrastructures will create significant societal, economic, and collateral damages. Therefore, this study aims to identify dimensions to measure the resilience of the transportation infrastructures. This study also aims to develop a model to measure the resilience of the transportation infrastructures resilience. To fulfill the aims of this study, a questionnaire was developed which was supported by a comprehensive literature review. 92 valid responses were received and analyzed qualitatively and quantitatively. Statistically significant variables …

Effect Of Disclosed Information On Product Liking, Emotional Profile, And Purchase Intent: A Case Of Chocolate Brownies Containing Edible-Cricket Protein, Cristhiam E. Gurdian, Damir D. Torrico, Bin Li, Georgianna Tuuri, Witoon Prinyawiwatkul

Faculty Publications

Edible insects, a sustainable and nutritious alternative to conventionally derived proteins, are unfamiliar to Westerners and often associated with negative sentiments. Edible-cricket protein (ECP) added to chocolate brownies (CB) [0% ECP = CBWO (without) vs. 6% w/w ECP = CBW (with)], and disclosed information [no ECP added = (−) vs. ECP with benefits = (+), ECP− and ECP+, respectively] yielded four CB treatments (CBWO−, CBWO+, CBW−, and CBW+). Subjects (n = 112 female and n = 98 male) rated liking, selected emotions before-and after-tasting, and determined consumption (CI) and purchase intent (PI) after tasting. Likings were analyzed with mixed-effects ANOVA …

The Neural Underpinnings Of Processing Newly Taught Semantic Information: The Role Of Retrieval Practice, Eileen Haebig, Laurence B. Leonard, Patricia Deevy, Jennifer Schumaker, Jeffrey D. Karpicke, Christine Weber

Faculty Publications

Purpose: Recent behavioral studies have demonstrated the effectiveness of implementing retrieval practice into learning tasks for children. Such approaches have revealed that repeated spaced retrieval (RSR) is particularly effective in promoting children’s learning of word form and meaning information. This study further examines how retrieval practice enhances learning of word meaning information at the behavioral and neural levels. Method: Twenty typically developing preschool children were taught novel words using an RSR learning schedule for some words and an immediate retrieval (IR) learning schedule for other words. In addition to the label, children were taught two arbitrary semantic features for each …

Range-Wide Population Genetic Analysis Of Seaside Sparrows (Ammospiza Maritima) Supports At Least Five Distinct Population Segments That Do Not Align With Current Subspecies Descriptions, Kathryn E.C. Davis, Amie E. Settlecowski, Mackenzie R. Roeder, Carolyn Enloe, Thomas Virzi, Margaret E. Hunter, Stefan Woltmann, Sabrina S. Taylor

Faculty Publications

As an obligate salt marsh species, Seaside Sparrows (Ammospiza maritima) are vulnerable to numerous threats including climate change, coastal erosion, sea-level rise, and both natural and anthropogenic disasters. Of the 9 recognized subspecies, 2 are extinct and 1 is endangered. Previous genetic analyses of mitochondrial DNA (mtDNA) and microsatellite loci showed that current taxonomy does not accurately reflect underlying genetic diversity, with possible consequences for the distribution of conservation resources. To further inform Seaside Sparrow management, we comprehensively describe genetic structure among 24 range-wide sampling locations that include all extant subspecies. We inferred population structure from several thousand single-nucleotide polymorphisms …

Honeycomb Structures In Magnetic Fields, Becker Simon, Rui Han, Svetlana Jitomirskaya, Maciej Zworski

Faculty Publications

We consider the nearest-neighbour tight binding model of the honeycomb lattice in magnetic fields and discover surprizing new analytical results that fully explain fractal spectra and experimentally observed asymmetries in the density of states of molecular graphene.We describe a fractal Cantor spectrum for irrational magnetic flux through a honeycomb, and establish the existence of zero energy Dirac cones for each rational flux with fully explicit estimates on the cone angle. Our results give a substantially more refined description of subtleties in the de Haas-van Alphen and quantum Hall effects, and provide the first quantitative bounds on transport coefficients for the …

Reducible Fermi Surface For Multi-Layer Quantum Graphs Including Stacked Graphene, Lee Fisher, Wei Li, Stephen P. Shipman

Faculty Publications

We construct two types of multi-layer quantum graphs (Schrödinger operators on metric graphs) for which the dispersion function of wave vector and energy is proved to be a polynomial in the dispersion function of the single layer. This leads to the reducibility of the algebraic Fermi surface, at any energy, into several components. Each component contributes a set of bands to the spectrum of the graph operator. When the layers are graphene, AA-, AB-, and ABC-stacking are allowed within the same multi-layer structure. One of the tools we introduce is a surgery-type calculus for obtaining the dispersion function for a …

An Adaptive Data-Driven Controller For Underwater Manipulators With Variable Payload, Ignacio Carlucho, Dylan W. Stephens, Corina Barbalata

Faculty Publications

The underwater environment poses a complex problem for developing control systems for underwater manipulators. Modeling the system is a complicated and costly process due to the highly nonlinear dynamics and the presence of unknown hydrodynamical effects. Furthermore, manipulators are usually deployed on Autonomous Underwater Vehicles (AUVs) which further influence and change the dynamics of the arm. This is aggravated in underwater operations where manipulating different objects is necessary. These diverse manipulation tasks introduce external disturbances to the system and can lead to a fast degradation of the control system performance. In this article, we propose a novel adaptive controller for …

Bilateral Privacy-Utility Tradeoff In Spectrum Sharing Systems: A Game-Theoretic Approach, Mengmeng Liu, Xiangwei Zhou, Mingxuan Sun

Faculty Publications

In spectrum sharing systems based on spectrum trading, user locations are vital for the efficiency of dynamic channel reuse. However, both primary users (PUs) and secondary users (SUs) undertake the risk of location information leakage: a malicious PU may illegally collect SUs' location information to manipulate market decisions; a malicious SU would threat a PU's operational privacy by inferring the PU's location through seemingly inoffensive queries. To protect both PUs' and SUs' location information in spectrum trading, a bilateral privacy preservation framework is introduced in this paper. A game-theoretic approach based on the Stackelberg model is proposed to achieve the …

An Automated System For Inspecting Rock Faces And Detecting Potential Rock Falls Using Machine Learning, John Stormont, Fernando Moreu, Amir Bagherieh, Roya Nasimi, Solomon Atcitty

Publications

Rockfall is a hazard in mountainous areas threatening infrastructure and human lives. Rockfall hazards are often mitigated by manual inspections using pry bars. The inspector must access the rock face, hit the rock surface, detect, and remove the loose rocks. This method is very labor demanding, unsafe, and challenging. This research presents a method that automatize the inspection of rock blocks that are prone to rockfall events. A robot is developed to replace the manual hammer tap process and collect the sound data remotely; subsequently, the sound signal is used to identify different types of the discontinuity in rocks in …

Bridge Cracks Monitoring: Detection, Measurement, And Comparison Using Augmented Reality, Fernando Moreu, Kaveh Malek

Publications

Crack occurrence and propagation are among critical factors that affect the performance and lifespan of civil infrastructures such as bridges. Consequently, numerous crack detection and measurement methods have been proposed and developed in the recent decades in the areas of Structural Health Monitoring and non-destructive testing. Many novel technologies have emerged with the potential to overcome the limitations of the presented techniques of crack detection and characterization. Crack detection and characterization method used in this research lies in supplementing human visual inspection capabilities in a systematic manner through an appropriate level of automation. The Augmented Reality (AR) tool developed in …

Development Of A Multi-Level Dynamic Model To Measure The Resilience Level Of Transportation Infrastructure Networks, Sharareh Kermanshachi, Jianling Li, Thahomina Jahan Nipa

Publications

The recent increase in disasters is making the largest critical infrastructure system namely the transportation infrastructure system susceptible to unexpected damage. Discontinuation of services provided by transportation infrastructures will create significant societal, economic, and collateral damages. Therefore, this study aims to identify dimensions to measure the resilience of the transportation infrastructures. This study also aims to develop a model to measure the resilience of the transportation infrastructures resilience. To fulfill the aims of this study, a questionnaire was developed which was supported by a comprehensive literature review. 92 valid responses were received and analyzed qualitatively and quantitatively. Statistically significant variables …

Physical Activity Behaviours In Adolescence: Current Evidence And Opportunities For Intervention, Esther M.F. Van Sluijs, Ulf Ekelund, Inacio Crochemore-Silva, Regina Guthold, Amy Ha, David Lubans, Adewale L. Oyeyemi, Ding Ding, Peter T. Katzmarzyk

Population and Public Health Science Faculty Publications

Young people aged 10–24 years constitute 24% of the world's population; investing in their health could yield a triple benefit—eg, today, into adulthood, and for the next generation. However, in physical activity research, this life stage is poorly understood, with the evidence dominated by research in younger adolescents (aged 10–14 years), school settings, and high-income countries. Globally, 80% of adolescents are insufficiently active, and many adolescents engage in 2 h or more daily recreational screen time. In this Series paper, we present the most up-to-date global evidence on adolescent physical activity and discuss directions for identifying potential solutions to enhance …

Online-Delivered Group And Personal Exercise Programs To Support Low Active Older Adults' Mental Health During The Covid-19 Pandemic: Randomized Controlled Trial, Mark R. Beauchamp, Ryan M. Hulteen, Geralyn R. Ruissen, Yan Liu, Ryan E. Rhodes, Colin M. Wierts, Katrina J. Waldhauser, Samantha H. Harden, Eli Puterman

Faculty Publications

Background: In response to the COVID-19 pandemic, experts in mental health science emphasized the importance of developing and evaluating approaches to support and maintain the mental health of older adults.

Objective: The aim of this study was to assess whether a group-based exercise program relative to a personal exercise program (both delivered online) and waitlist control (WLC) can improve the psychological health of previously low active older adults during the early stages of the COVID-19 pandemic.

Methods: The Seniors COVID-19 Pandemic and Exercise (SCOPE) trial was a 3-arm, parallel randomized controlled trial conducted between May and September 2020 in which …

Challenging The Illusion Of Diversity: A New Theoretical Paradigm Towards Newsroom Inclusion., Paromita Saha

LSU Doctoral Dissertations

Over the past forty years, the news industry has attempted to diversify the racial composition of their newsrooms from the perspective of representing their markets better mirroring best business practices in the industry. The statistics show that an affirmative style of recruitment has produced minimal, superficial results with a high turnover of minority journalists who are hardly promoted to editorial positions, as well as skewed representations of minority racial groups. The literature indicates that hegemonic ideological forces and the White male professional ethos behind journalism is not conducive to minority journalists producing meaningful changes to news content. My study indicates …