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FullText Articles in Physical Sciences and Mathematics
Combinatorial And Asymptotic Statistical Properties Of Partitions And Unimodal Sequences, Walter Mcfarland Bridges
Combinatorial And Asymptotic Statistical Properties Of Partitions And Unimodal Sequences, Walter Mcfarland Bridges
LSU Doctoral Dissertations
Our main results are asymptotic zeroone laws satisfied by the diagrams of unimodal sequences of positive integers. These diagrams consist of columns of squares in the plane; the upper boundary is called the shape. For various types of unimodal sequences, we show that, as the number of squares tends to infinity, 100% of shapes are near a certain curvethat is, there is a single limit shape. Similar phenomena have been wellstudied for integer partitions, but several technical difficulties arise in the extension of such asymptotic statistical laws to unimodal sequences. We develop a widely applicable method for obtaining these limit ...
Legendrian Dga Representations And The Colored Kauffman Polynomial, Justin Murray, Dan Rutherford
Legendrian Dga Representations And The Colored Kauffman Polynomial, Justin Murray, Dan Rutherford
Faculty Publications
For any Legendrian knot K in standard contact R3 we relate counts of ungraded (1graded) representations of the Legendrian contact homology DGalgebra (A(K), partial derivative) with the ncolored Kauffman polynomial. To do this, we introduce an ungraded ncolored ruling polynomial, Rn,K(1)(q), as a linear combination of reduced ruling polynomials of positive permutation braids and show that (i) Rn,K(1)(q) arises as a specialization Fn,FK(a, q)vertical bar(a1) = 0 of the ncolored Kauffman polynomial and (ii) when q is a power of two Rn,K(1)(q) agrees with the total ungraded ...
The Siltcatcher: A SedimentCapture System For Wetland Creation And Coastal Protection In Western Lake Pontchartrain, Andrew M. Wright
The Siltcatcher: A SedimentCapture System For Wetland Creation And Coastal Protection In Western Lake Pontchartrain, Andrew M. Wright
LSU Master's Theses
The West Lake Pontchartrain region faces a number of longterm environmental challenges due to anthropogenic climate disturbance and landscape modification, including sea level rise, increased storm surge risk, shoreline erosion, and wetland degradation. In response, this thesis applies recent research in the fields of landscape architecture and civil engineering to propose a dynamic, naturalsystems solution for wetland creation and shoreline protection. The project envisions a series of breakwaterlike structures in western Lake Pontchartrain positioned to slow water released from the nearby Bonnet Carré Spillway, causing suspended sediment to settle and create selfbuilding and selfsustaining wetlands capable of keeping pace with ...
An Ecopath With Ecosim Analysis On Offshore Petroleum Platform Influences On Gulf Of Mexico Red Snapper, Valentin Gomez
An Ecopath With Ecosim Analysis On Offshore Petroleum Platform Influences On Gulf Of Mexico Red Snapper, Valentin Gomez
LSU Master's Theses
Offshore oil and gas platforms have had a significant presence in the Gulf of Mexico since the 1950s. An important secondary function of these structures is that they provide artificial habitat to fisheries, most notably Red snapper. Policy changes intended to reduce the risk associated with aging infrastructure have reduced the number of standing platforms from 4044 to 1867 from 2001 to 2018. The effect this loss of habitat has on Red snapper was tested by creating three scenarios of platform changes and modeling the perturbation from 2005 to 2050. The simulation was accomplished using the ecological model Ecopath with ...
Limitations On Protecting Information Against Quantum Adversaries, Eneet Kaur
Limitations On Protecting Information Against Quantum Adversaries, Eneet Kaur
LSU Doctoral Dissertations
The aim of this thesis is to understand the fundamental limitations on secret key distillation in various settings of quantum key distribution. We first consider quantum steering, which is a resource for onesided deviceindependent quantum key distribution. We introduce a conditional mutual information based quantifier for quantum steering, which we call intrinsic steerability. Next, we consider quantum nonlocality, which is a resource for deviceindependent quantum key distribution. In this context, we introduce a quantifier, intrinsic nonlocality, which is a monotone in the resource theory of Bell nonlocality. Both these quantities are inspired by intrinsic information and squashed entanglement and are ...
Evaluation Of Neutron Skyshine Contributions During Injection At An Electron Synchrotron Facility Using Fluka, Andrew D. Hastings
Evaluation Of Neutron Skyshine Contributions During Injection At An Electron Synchrotron Facility Using Fluka, Andrew D. Hastings
LSU Master's Theses
The Center for Advanced Microstructures and Devices (CAMD) is a 1.5 gigaelectron volt (GeV) electron synchrotron research facility under the jurisdiction of Louisiana State University (LSU). When originally constructed in 1992, CAMD was surrounded by pasture and woodland. Over the past several years, urban development of the area has found CAMD bracketed by a shopping center, apartment complex, and business offices. These developments raised concerns amongst the CAMD radiation safety personnel regarding an increased potential for public exposure to radiation. To ensure compliance with the annual public effective dose equivalent limit of 1 millisievert (mSv), the radiation monitoring program ...
Novel PhotonDetector Models For Enhanced Quantum Information Processing, Elisha Siddiqui
Novel PhotonDetector Models For Enhanced Quantum Information Processing, Elisha Siddiqui
LSU Doctoral Dissertations
This work is devoted to the development of novel photondetector models at room temperature using quantum optics elements. This work comprises of two photonnumberresolving detector (PNRD) models, and the application of PNRD in LIDAR. The first model is based on using a twomode squeezing device to resolve photon number at room temperature. In this model we study the average intensityintensity correlations signal at the output of a twomode squeezing device with N> and α> as the two input modes. We show that the input photonnumber can be resolved from the average intensityintensity correlations. In particular, we show jumps in the ...
On Selected Subclasses Of Matroids, Tara Elizabeth Fife
On Selected Subclasses Of Matroids, Tara Elizabeth Fife
LSU Doctoral Dissertations
Matroids were introduced by Whitney to provide an abstract notion of independence.
In this work, after giving a brief survey of matroid theory, we describe structural results for various classes of matroids. A connected matroid $M$ is unbreakable if, for each of its flats $F$, the matroid $M/F$ is connected%or, equivalently, if $M^*$ has no two skew circuits. . Pfeil showed that a simple graphic matroid $M(G)$ is unbreakable exactly when $G$ is either a cycle or a complete graph. We extend this result to describe which graphs are the underlying graphs of unbreakable frame matroids. A laminar ...
Antibiotic Resistance In Bacteria From Songbirds And Fitness Studies Following Environmental Stressors In Vitro, Leah R. Forsyth
Antibiotic Resistance In Bacteria From Songbirds And Fitness Studies Following Environmental Stressors In Vitro, Leah R. Forsyth
LSU Master's Theses
Since their initial discovery in 1928, antibiotics have been utilized for agriculture and human health purposes. The increasing use of antibiotics by humans and the rapid evolution of antibiotic resistance might be leading to the presence of more antibioticresistant bacteria in the environment. Understanding potential relationships between humans, bacteria, and the environment is important in order to study the spread and progression of antibiotic resistance in bacteria. Several past studies have focused on oxidative stress, temperature stress, and antibiotic resistance in bacteria, but to my knowledge few if any have done a wide comparison between these environmental stressors and the ...
MemoryModulated Cir Process With Discrete Delay Coefficients, Pathiranage Lochana Siriwardena, Harry Randolph Hughes, D. G. Wilathgamuwa
MemoryModulated Cir Process With Discrete Delay Coefficients, Pathiranage Lochana Siriwardena, Harry Randolph Hughes, D. G. Wilathgamuwa
Journal of Stochastic Analysis
No abstract provided.
Finding Music In Chaos: Designing And Composing With Virtual Instruments Inspired By Chaotic Equations, Landon P. Viator
Finding Music In Chaos: Designing And Composing With Virtual Instruments Inspired By Chaotic Equations, Landon P. Viator
LSU Doctoral Dissertations
Using chaos theory to design novel audio synthesis engines has been explored little in computer music. This could be because of the difficulty of obtaining harmonic tones or the likelihood of chaosbased synthesis engines to explode, which then requires reinstantiating of the engine to proceed with sound production. This process is not desirable when composing because of the time wasted fixing the synthesis engine instead of the composer being able to focus completely on the creative aspects of composition. One way to remedy these issues is to connect chaotic equations to individual parts of the synthesis engine instead of relying ...
Some Exit Time Estimates For SuperBrownian Motion And FlemingViot Process, Parisa Fatheddin
Some Exit Time Estimates For SuperBrownian Motion And FlemingViot Process, Parisa Fatheddin
Journal of Stochastic Analysis
No abstract provided.
An Improved Uniqueness Result For A System Of Sde Related To The Stochastic Wave Equation, Carl Mueller, Eyal Neuman, Michael Salins, Giang Truong
An Improved Uniqueness Result For A System Of Sde Related To The Stochastic Wave Equation, Carl Mueller, Eyal Neuman, Michael Salins, Giang Truong
Journal of Stochastic Analysis
No abstract provided.
Large And Moderate Deviation Principles For Recursive Kernel Estimators For Spatial Data, Salim Bouzebda, Yousri Slaoui
Large And Moderate Deviation Principles For Recursive Kernel Estimators For Spatial Data, Salim Bouzebda, Yousri Slaoui
Journal of Stochastic Analysis
No abstract provided.
Closed Quantum BlackScholes: Quantum Drift And The Heisenberg Equation Of Motion, Will Hicks
Closed Quantum BlackScholes: Quantum Drift And The Heisenberg Equation Of Motion, Will Hicks
Journal of Stochastic Analysis
No abstract provided.
Role Of Coastal Environmental Conditions During Austral Winter On Plankton Community Dynamics And The Occurrence Of PseudoNitzschia Spp. And Domoic Acid In Inhambane Province, Mozambique, Holly Kelchner
LSU Master's Theses
Harmful algal blooms (HABs) are increasing globally in frequency, persistence, and geographic extent. HABs pose a threat to economic stability, and ecosystem and human health. To date no incidences of marine toxins produced by phytoplankton have been recorded in Mozambique, which may be due to the absence of a monitoring program and general awareness of the potential threat. This study is the first documentation of the occurrence of a neurotoxin, domoic acid (DA), produced by the diatom genus Pseudonitzschia spp. along the east coast of Africa. The coast of Inhambane Province is a biodiversity hotspot where yearround Rhincodon typus (whale ...
Exit Problems For JumpDiffusion Processes With Uniform Jumps, Mario Lefebvre
Exit Problems For JumpDiffusion Processes With Uniform Jumps, Mario Lefebvre
Journal of Stochastic Analysis
No abstract provided.
Ogawa Integrability And A Condition For Convergence In The Multidimensional Case, Nicolò Cangiotti, Sonia Mazzucchi
Ogawa Integrability And A Condition For Convergence In The Multidimensional Case, Nicolò Cangiotti, Sonia Mazzucchi
Journal of Stochastic Analysis
No abstract provided.
Mixing Coefficient For DiscreteTime Stochastic Flow, E.V. Glinyanaya
Mixing Coefficient For DiscreteTime Stochastic Flow, E.V. Glinyanaya
Journal of Stochastic Analysis
No abstract provided.
On A Class Of Average Preserving SemiMartingale Laws Optimization Problems, Rémi Lassalle
On A Class Of Average Preserving SemiMartingale Laws Optimization Problems, Rémi Lassalle
Journal of Stochastic Analysis
No abstract provided.
The Semimartingale Dynamics And Generator Of A Continuous Time SemiMarkov Chain, Robert J. Elliott
The Semimartingale Dynamics And Generator Of A Continuous Time SemiMarkov Chain, Robert J. Elliott
Journal of Stochastic Analysis
No abstract provided.
Calibration Transients In Ligo Detectors, Thomas Daniel Abbott
Calibration Transients In Ligo Detectors, Thomas Daniel Abbott
LSU Doctoral Dissertations
This dissertation describes a novel method of analyzing fluctuations in the timedependent calibration models of the LIGO interferometers to estimate their effect on strain reconstruction for gravitationalwave detections. The timedependence of the calibration model of each detector is tracked with a set of parameters which are continuously measured while the interferometers are operating. These parameters track slow variations in the sensing function of the detectors as well as the actuators that hold the detectors in an operational state. The timedependent parameter data during the second observation run (O2 [November 30, 2016 16:00 UTC to August 25, 2017 22:00 ...
Stellar Nucleosynthesis: Direct Measurement Of The NeutronCapture Cross Sections Of Stable Germanium Isotopes And Design Of A Next Generation Ion Trap For The Study Of BetaDelayed Neutron Emission, Alexander Laminack
LSU Doctoral Dissertations
Knowledge of stellar nuclear reaction rates is critical to understanding the cosmic origins of the abundances of elements. In order to determine these reaction rates, accurate measurements of nuclear cross sections are needed. This thesis presents the results of an experiment to directly measure the neutron capture cross sections of 70Ge, 72Ge, 74Ge, and 76Ge. These measurements were performed at the Los Alamos Neutron Science CEnter (LANSCE) using the Detector for Advanced Neutron Capture Experiments (DANCE). This is the first direct measurement for many of these isotopes across the neutron energy spectrum of 10 eV to 1 MeV using the ...
Reproductive Biology And Trophic Niche Of Hardhead Catfish In The Northern Gulf Of Mexico, Lucas G. Pensinger
Reproductive Biology And Trophic Niche Of Hardhead Catfish In The Northern Gulf Of Mexico, Lucas G. Pensinger
LSU Master's Theses
Generally, marine fishes have very high fecundity with each female producing many small eggs which hatch into small larvae. However, Ariopsis felis, a species of marine catfish common to coastal Louisiana, has low fecundity and produces the largest eggs of the teleost fishes. Despite wide range and generally high abundance, we know very little of A. felis biology and population. The few existing studies of A. felis are older and often have questionable or unclear methodology.
I examined four aspects of A. felis reproductive biology: 1) reproductive timing,
2) fecundity, 3) length at first maturity, and 4) mouth brooding. I ...
Lake Pontchartrain Data, Chunyan Li
Lake Pontchartrain Data, Chunyan Li
WAVCIS
The ADCP data file use the RDI standard ASCII format. For the variables please check with the RDI ADCP document. The salinity file has the surface thermosalinigraph data along a river plume inside the Lake Pontchartrain obtained on May 11, 2011, after a freshwater diversion from the Bonnet Carre Spillway from the Mississippi River. Time is in the standard UTC. Data include the surface water temperature (C), salinity (PSU), latitude, longitude, hour, minute, and second. The data were obtained from a moving boat. It was a survey supported by an NSF RAPID project. The data are used in a paper ...
Influencing Factors On The Velocity And Temperature Of Propagating Fronts In Acrylate Composites, Samuel Morris Bynum
Influencing Factors On The Velocity And Temperature Of Propagating Fronts In Acrylate Composites, Samuel Morris Bynum
LSU Doctoral Dissertations
Thermal frontal polymerization is a type of polymerization in which a localized reaction zone propagates through an unstirred system. It is incumbent upon the production and transport of heat produced as a result of the exothermic reaction associated with freeradical polymerization. First discovered in the 1970s, frontal polymerization has been since utilized to produce a variety of different materials, utilizing a variety of different chemistries. The temperature of the propagating front and the velocity at which it propagates can be influenced via chemical or physical means. We show that through careful selection of monomers and control of the concentration of ...
Supporting The Algebra I Curriculum With An Introduction To Computational Thinking Course, Michelle M. Laskowski
Supporting The Algebra I Curriculum With An Introduction To Computational Thinking Course, Michelle M. Laskowski
LSU Master's Theses
The Louisiana Workforce Commission predicts a 33.6% increase in computer science and mathematical occupations by 2022 and the Bureau of Labor Statistics foresees a 16% increase in computer scientists from 20182028. Despite these opportunities for job and financial security, the number of Louisiana students enrolled in a nationally accredited computing course is less than 1%, compared to national leaders California and Texas which have 3% and 3.8% of students respectively. Furthermore, the international assessments of mathematical literacy, PISA and TIMMS, both report American students continue to fall further behind their international peers in mathematics achievement.
This thesis rejects ...
Simultaneous Enhancement Of NearInfrared Emission And Dye Photodegradation In A Racemic Aspartic Acid Compound Via MetalIon Modification, Frank R. Fronczek, Jian Xu
Simultaneous Enhancement Of NearInfrared Emission And Dye Photodegradation In A Racemic Aspartic Acid Compound Via MetalIon Modification, Frank R. Fronczek, Jian Xu
Faculty Publications
Changing functionalities of materials using simple methods is an active area of research, as it is "green" and lowers the developing cost of new products for the enterprises. A new small molecule racemic N,Ndimethyl aspartic acid has been prepared. Its structure is determined by singlecrystal Xray diffraction. It is characterized by FTIR, XPS, 1 H NMR, and mass spectroscopy. Its nearinfrared luminescence can be enhanced by the combination of metal ions, including Dy3+, Gd3+, Nd3+, Er3+, Sr3+, Y3+, Zn2+, Zr4+, Ho3+, Yb3+, La3+, Pr6+/Pr3+, and Sm3+ ions. An optical chemistry mechanism upon interaction between the sensitizer and activator ...
Simultaneous Enhancement Of NearInfrared Emission And Dye Photodegradation In A Racemic Aspartic Acid Compound Via MetalIon Modification, Frank R. Fronczek, Jian Xu
Simultaneous Enhancement Of NearInfrared Emission And Dye Photodegradation In A Racemic Aspartic Acid Compound Via MetalIon Modification, Frank R. Fronczek, Jian Xu
Faculty Publications
Changing functionalities of materials using simple methods is an active area of research, as it is "green" and lowers the developing cost of new products for the enterprises. A new small molecule racemic N,Ndimethyl aspartic acid has been prepared. Its structure is determined by singlecrystal Xray diffraction. It is characterized by FTIR, XPS, 1 H NMR, and mass spectroscopy. Its nearinfrared luminescence can be enhanced by the combination of metal ions, including Dy3+, Gd3+, Nd3+, Er3+, Sr3+, Y3+, Zn2+, Zr4+, Ho3+, Yb3+, La3+, Pr6+/Pr3+, and Sm3+ ions. An optical chemistry mechanism upon interaction between the sensitizer and activator ...
High Power And Optomechanics In Advanced Ligo Detectors, Terra Christine Hardwick
High Power And Optomechanics In Advanced Ligo Detectors, Terra Christine Hardwick
LSU Doctoral Dissertations
In September 2015, a new era of astronomy began with the first direct detection of grav itational waves from a binary black hole coalescence. The event was captured by the Laser Interferometer Gravitationalwave Observatory, comprised of two longbaseline interferometers, one in Livingston, LA and one in Hanford, WA. At the time of the first detection, the interferometers were part way through an upgrade to an advanced configuration and were operating with a strain sensitivity of just better than 10^{−23}/Hz^{1/2} around 100Hz. The full Advanced LIGO design calls for sensitivity of a few parts in 10^{−24 ...}