Digital Commons Network^™

The Sedimentology And Origins Of A Giant Mass Transport Complex: The Nataraja Slide, Arabian Sea, Sarah Dailey

LSU Master's Theses

A giant mass transport complex (MTC) was recently discovered in the eastern Arabian Sea exceeding in volume all but one other known complex on passive margins worldwide. The complex, named the Nataraja Slide, was drilled by IODP Expedition 355 in two locations where it is ~300 m (Site U1456) and ~200 m thick (Site U1457). The top is defined by the presence of both reworked microfossil assemblages and deformation structures, such as folding and faulting. The deposit consists of two main phases of mass wasting, each which consists of smaller pulses, with generally fining upward cycles, all emplaced just prior …

Thin-Film Block Copolymers (Bcps) Self-Assembly As Versatile Patterning Scheme For Functional Nanomaterials, Le Zhang

LSU Master's Theses

Nanopattern generation is required for building various structural entities in every production process that involves nanostructures. Advancing nanopatterning technologies play an important role in developing and broadening the current nanopatterning technologies to meet up with the ever-demanding requirements in the realm of smaller feature sizes, smoother line-edge roughness (LER) and facile pattern transfer in pursuit of faster computer processors, better electrocatalysts and more compact and intelligent sensors, etc. Conventionally, patterning needs are heavily relied on photolithography, a technique that dominate chip-making industry for more than 50 years. However conventional photolithography is bounded by inherent resolution limits and difficult to be …

Applications Of Position-Based Coding To Classical Communication Over Quantum Channels, Haoyu Qi, Qingle Wang, Mark M. Wilde

Faculty Publications

Recently, a coding technique called position-based coding has been used to establish achievability statements for various kinds of classical communication protocols that use quantum channels. In the present paper, we apply this technique in the entanglement-assisted setting in order to establish lower bounds for error exponents, lower bounds on the second-order coding rate, and one-shot lower bounds. We also demonstrate that position-based coding can be a powerful tool for analyzing other communication settings. In particular, we reduce the quantum simultaneous decoding conjecture for entanglement-assisted or unassisted communication over a quantum multiple access channel to open questions in multiple quantum hypothesis …

Project Narrative: Examining The Interplay Of Experiences Of Participants In An After-School Writing Club, Courtney A. Brown

LSU Doctoral Dissertations

Writing is a vital part of literacy development. It affords the opportunity for the expression and analysis of comprehensive thought, while simultaneously being a modality for unique and creative communication. In order for productive dialogue about the study of writing to be engaged, the contemplation of its many dynamic parts occurring across a diversity of contexts must be considered in such a way that one writing strategy, process, product or environment is not privileged above another. Each constituent part of writing construction contributes meaningfully to the existing body of research for this field, and when carefully disaggregated can offer specific …

A Review Of Current Knowledge Concerning The Breeding And Summer Distribution Of The Cordilleran Flycatcher (Empidonax Occidentalis) In Mexico, Harold F. Greeney, Matthew J. Miller, Charles Van Riper Iii

Occasional Papers of the Museum of Natural Science, Louisiana State University

The Cordilleran Flycatcher (Empidonax occidentalis) is one of many North American birds whose distribution crosses the US–Mexican border and for which little is presently known about summer distribution and breeding biology south of this border. In addition, the Cordilleran Flycatcher presents ornithologists with a number of challenging questions surrounding its taxonomy, migration, distribution, population structure, and species limits. In particular, there remains a good deal of uncertainty concerning the species-level relationships, seasonal movements, and the wintering and breeding distributions of both recognized subspecies of Cordilleran Flycatcher in Mexico. Using field observations, a thorough review of the literature, and …

Luminescent And Uv-Shielding Zno Quantum Dots/Carboxymethylcellulose Sodium Nanocomposite Polymer Films, Tianyi Li, Bin Li, Yali Ji, Lili Wang

Faculty Publications

Luminescent andUV-shielding bio-polymers have seldombeen reported. Zinc oxide quantum dots (ZnOQD) (~3.2 nm) was synthesized by a short-term sol-gel method. ZnOQD possessed a crystal lattice spacing of 0.28 nm and a hexagonal wurtzite structure. Luminescent and UV-shielding ZnOQD/carboxymethylcellulose sodium (CMC) nanocomposite polymer films were successfully fabricated by incorporating ZnOQD into a CMC matrix through a solution casting method. Thermal analysis demonstrated that the ZnOQD reduce the thermal decomposition rate of CMC, and a large number of ZnOQD can promote the catalytic degradation of ZnOQD/CMC nanocomposites. Furthermore, ZnOQD/CMC hybrid polymer films exhibited photoluminescence with maximum emission wavelength at 525 nm. More …

Exploring The Interdependence Of Trust And Communication In The Teacher-Principal Relationship, Jon Oliver Downs

LSU Doctoral Dissertations

This research explored teacher and principal perceptions of trust and communication in the teacher-principal relationship. Through in-depth interviews, research participants provided perceived characteristics needed for effective teachers, principals, and teacher-principal relationships, and pointed out characteristics detrimental to the effectiveness of the teacher-principal relationship. The research utilized past research in organizational communication, trust, and trust and communication within the teacher-principal relationship and other important components of effective teacher-principal relationships to provide a literary foundation for the study. The research identified perceptions of teachers and principals with respect to communication and trust in the teacher-principal relationship, and identified what priorities successful first-year …

Using A Trait-Based Approach To Optimize Mixotrophic Growth Of The Red Microalga Porphyridium Purpureum Towards Fatty Acid Production, Kailin Jiao, Wupeng Xiao, Yuanchao Xu, Xianhai Zeng, Shih Hsin Ho, Edward A. Laws, Yinghua Lu, Xueping Ling, Tuo Shi, Yong Sun, Xing Tang, Lu Lin

Faculty Publications

Background: Organic carbon sources have been reported to simultaneously increase the growth and lipid accumulation in microalgae. However, there have been no studies of the mixotrophic growth of Porphyridium purpureum in organic carbon media. In this study, three organic carbon sources, glucose, sodium acetate, and glycerol were used as substrates for the mixotrophic growth of P. purpureum. Moreover, a novel trait-based approach combined with Generalized Additive Modeling was conducted to determine the dosage of each organic carbon source that optimized the concentration of cell biomass or fatty acid. Results: A 0.50% (w/v) dosage of glucose was optimum for the enhancement …

Religion, Racism, And Ecological Stress Among African-American Families: A Qualitative Analysis Of Perceptions And Coping Strategies, Johnnie W. Jones

LSU Doctoral Dissertations

ABSTRACT

Americans do not reside in what many consider now a Post-Racial society. A remarkable number of researchers found that African Americans are more likely than any other racial group to experience racism, manifested by racist attitudes and practices, which negatively affect their physical, mental, and emotional wellbeing (health). Very importantly, numerous scholarly works have examined racism and Black women qualitatively. Unfortunately, less has been known about the personal processes and meaning-making mechanisms of Black married couples and African American males in terms of how they cope with racism, and ecological stress. To address this gap, this study uses qualitative …

Fibroblast Growth Factor 21, Adiposity, And Macronutrient Balance In A Healthy, Pregnant Population With Overweight And Obesity, Elizabeth F. Sutton, Christopher D. Morrison, Jacqueline M. Stephens, Leanne M. Redman

Faculty Publications

© 2018, © 2018 Taylor & Francis. Aim of the study: The regulation and actions of fibroblast growth factor 21 (FGF21) are responsive to energy status and macronutrient balance, and investigations of FGF21 in normal pregnancy, which could be informative for FGF21 biology, are seldom. The goal of our study was to examine FGF21 levels in a contemporary healthy, pregnant population. Methods: We phenotyped 43 women with overweight and obesity during pregnancy for weight, body composition, and fasting blood. Serum FGF21 was measured during the first and third trimesters. Placentas were collected at delivery. Results: Maternal FGF21 concentrations were positively …

Contact-Type Endoscope Sers Probe, And Related Methods, Martin Feldman, Dooyoung Hah

College of Engineering Patents

A contact-type endoscope surface enhanced Raman scattering (SERS) probe includes a gradient-index (GRIN) lens, a transparent substrate adhered to the GRIN lens, and a rough metallic layer adhered to an opposite side of the transparent substrate from the GRIN lens. The GRIN lens focuses light from a Raman spectrometer onto the rough metallic layer, and the rough metallic layer is positioned at the distal end of the contact-type endoscope SERS probe.

Mode Switching For Increased Off-Chip Bandwidth, Lu Peng, Ashok Srivastava, Shaoming Chen

College of Engineering Patents

Embodiments of the present invention include methods for increasing off-chip bandwidth. The method includes designing a circuit of switchable pins, replacing a portion of allocated pins of a processor with switchable pins, connecting the processor to a memory interface configured to switch the switchable pins between a power mode and a signal mode, providing a metric configured to identify which of the power mode and the signal mode is most beneficial during 1 millisecond intervals, and switching the switchable pins to signal mode during intervals where the signal mode provides more benefit than the power mode.

Lateral Circulation In A Partially Stratified Tidal Inlet, Linlin Cui, Haosheng Huang, Chunyan Li, Dubravko Justic

Faculty Publications

No abstract provided.

Spatial-Temporal Event-Driven Modeling For Occupant Behavior Studies Using Immersive Virtual Environments, Sanaz Saeidi, Chanachok Chokwitthaya, Yimin Zhu, Ming Sun

Faculty Publications

It is widely accepted that the prediction of building energy performance is strongly related to the occupancy parameters. Currently, existing buildings and laboratories are the main sources for collecting occupancy related data. However, using such data for predicting the energy consumption of future buildings can create a considerable amount of uncertainties. Recent studies show that Immersive Virtual Environments (IVEs) have the potential to generate design and context sensitive occupant-related data. However, extended observations (longitudinal data covering relevant spatial and temporal events) which are necessary for developing quantitative predictive models are impractical using conventional IVEs. To that end, the authors propose …

Desiccation Tolerant Lichens Facilitate In Vivo H/D Isotope Effect Measurements In Oxygenic Photosynthesis, David J. Vinyard, Gennady M. Ananyev, G. Charles Dismukes

Faculty Publications

© 2018 Elsevier B.V. We have used the desiccation-tolerant lichen Flavoparmelia caperata, containing the green algal photobiont Trebouxia gelatinosa, to examine H/D isotope effects in Photosystem II in vivo. Artifact-free H/D isotope effects on both PSII primary charge separation and water oxidation yields were determined as a function of flash rate from chlorophyll-a variable fluorescence yields. Intact lichens could be reversibly dehydrated/re-hydrated with H2O/D2O repeatedly without loss of O2 evolution, unlike all isolated PSII preparations. Above a threshold flash rate, PSII charge separation decreases sharply in both D2O and H2O, reflecting loss of excitation migration and capture by PSII. Changes …

Microbial Community Structure And Functional Potential Of Lava-Formed Gotjawal Soils In Jeju, Korea, Jong Shik Kim, Dae Shin Kim, Keun Chul Lee, Jung Sook Lee, Gary M. King, Sanghoon Kang

Faculty Publications

© 2018 Kim et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The Gotjawal areas of Jeju Island, Korea, are comprised of unmanaged forests growing on volcanic soils. They support unique assemblages of vascular plants from both northern and southern hemispheres, but are threatened by human disturbance. The health and ecosystem function of these assemblages likely depends in part on the diversity and community structure of soil microbial communities, about which little is …

3d Mri Modeling Of Thin And Spatially Complex Soft Tissue Structures Without Shrinkage: Lamprey Myosepta As An Example, Bradley M. Wood, Guang Jia, Owen Carmichael, Kevin Mcklveen, Dominique G. Homberger

Faculty Publications

© 2018 Wiley Periodicals, Inc. 3D imaging techniques enable the nondestructive analysis and modeling of complex structures. Among these, MRI exhibits good soft tissue contrast, but is currently less commonly used for nonclinical research than X-ray CT, even though the latter requires contrast-staining that shrinks and distorts soft tissues. When the objective is the creation of a realistic and complete 3D model of soft tissue structures, MRI data are more demanding to acquire and visualize and require extensive post-processing because they comprise noncubic voxels with dimensions that represent a trade-off between tissue contrast and image resolution. Therefore, thin soft tissue …

Spreading The News About The Novel Conjugation Mechanism In Streptomyces Bacteria, Gregg S. Pettis

Faculty Publications

© 2018 Society for Applied Microbiology and John Wiley & Sons Ltd The hallmark of mycelial spore-forming bacteria of the genus Streptomyces is their prolific production of antibiotics and other bioactive secondary metabolites as part of a complex morphological and physiological developmental program. They are further distinguished by a conjugation mechanism that differs substantially from the single-strand mode of DNA transfer via Type IV secretion, which is exhibited by numerous unicellular Gram-negative and Gram-positive bacteria. At the crux of the novel intermycelial transfer event in Streptomyces spp. is a membrane pore composed of a single plasmid protein (TraB), which also …

F18rs Eo No. 1 (Safety Partner Day), Stewart Lockett

Student Senate Enrolled Legislation

No abstract provided.

F18rs Sgr No. 6 (Texas A&M Mascot Condolences), Johnathon Price

Student Senate Enrolled Legislation

No abstract provided.

F18rs Sgr No. 8 (Supplemental Instruction), Tim Craig

Student Senate Enrolled Legislation

No abstract provided.

F18rs 1st Legislative Week Minutes, Austin Grashoff

Student Senate Meeting Minutes

No abstract provided.

F18rs 2nd Legislative Week Minutes, Austin Grashoff

Student Senate Meeting Minutes

No abstract provided.

F18rs Sgr No. 9 (Ldeq Conference), Jack Green

Student Senate Enrolled Legislation

No abstract provided.

F18rs 3rd Legislative Week Minutes, Caroline Peltier

Student Senate Meeting Minutes

No abstract provided.

F18rs 4th Legislative Week Minutes, Nicholas Stuart

Student Senate Meeting Minutes

No abstract provided.

Nonlocal Diffusions And The Quantum Black-Scholes Equation: Modelling The Market Fear Factor, Will Hicks

Communications on Stochastic Analysis

No abstract provided.

A Decomposition Of A Space Of Multiple Wiener Integrals By The Difference Of Two Independent Lévy Processes In Terms Of The Lévy Laplacian, Atsushi Ishikawa

Communications on Stochastic Analysis

No abstract provided.

An Asymptotic Comparison Of Two Time-Homogeneous Pam Models, Hyun-Jung Kim, Sergey Vladimir Lototsky

Communications on Stochastic Analysis

No abstract provided.

Parametric Family Of Sdes Driven By Lévy Noise, Suprio Bhar, Barun Sarkar

Communications on Stochastic Analysis

No abstract provided.