Digital Commons Network^™

Effects Of Sea Level Rise, Land Subsidence, Bathymetric Change And Typhoon Tracks On Storm Flooding In The Coastal Areas Of Shanghai, Jun Wang, Si Yi, Mengya Li, Lei Wang, Chengcheng Song

Faculty Publications

We compared the effects of three key environmental factors of coastal flooding: sea level rise (SLR), land subsidence (LS) and bathymetric change (BC) in the coastal areas of Shanghai. We use the hydrological simulation model MIKE 21 to simulate flood magnitudes under multiple scenarios created from combinations of the key environmental factors projected to year 2030 and 2050. Historical typhoons (TC9711, TC8114, TC0012, TC0205 and TC1109), which caused extremely high surges and considerable losses, were selected as reference tracks to generate potential typhoon events that would make landfalls in Shanghai (SHLD), in the north of Zhejiang (ZNLD) and moving northwards …

Scavenge, Jessica B. Thames

LSU Master's Theses

Scavenge is an installment that blurs the boundaries of found and altered materials. What I define as "Left-overs" are abandoned materials taken from an enigmatic history. These Left-over objects are minimally altered, stacked or placed carefully pertaining to visual characteristics of the object, as well as the spatial relationship between each object inside the gallery. My work refuses to settle. Transporting an object from a large outdoor grouping into a gallery space changes our perception of the object. The newly created interior arrangement in the gallery space contrasts the arbitrariness of objects found in nature or discarded, inviting a viewer …

"Fifty Shades Of Black": The Black Racial Identity Development Of Black Members Of White Greek Letter Organizations In The South, Danielle Ford

LSU Master's Theses

It could be argued that one of the most segregated settings on a college campus today can be found amongst the sprawling mansions that line a university’s Fraternity and Sorority Row. While many Black students join Black Greek-letter organizations (“BGLOs”), a small number decide to rush and pledge White Greek-letter organizations (“WGLOs”). According to Matthew Hughey, a professor at the University of Connecticut who studies race in Greek life, only 3 to 4 percent of members of WGLOs are nonwhite (Hughey, 2007).

Historically, many WGLOs’ constitutions and policies included official “race clauses” that banned non-White students from membership; those clauses …

Within Season Hematological Changes In College Athletes With Sickle Cell Trait, Michael E. Owens

LSU Master's Theses

ABSTRACT

PURPOSE: To explore the hematological differences in African-American athletes with sickle cell trait (SCT) and healthy controls (CON) before preseason camp and the changes that occur after a full season. METHODS: Sixteen (n=8 SCT; n=8 position matched, CON) NCAA Division 1 athletes (12 football, 2 each women’s soccer and volleyball) had blood drawn before preseason camp, after and at the end of the season, and analyzed for Hb electrophoresis (Hb-A, Hb-A2, Hb-S, and Hb-F), complete blood count with differential, chemistry panel 26, and prothrombin time, activity and international normalized ratio (INR). RESULTS: Baseline total Hb was …

Wavelength And Intensity Dependence Of Recollision-Enhanced Multielectron Effects In High-Order Harmonic Generation, Paul M. Abanador, François Mauger, Kenneth Lopata, Mette B. Gaarde, Kenneth J. Schafer

Faculty Publications

Using a model molecular system (A2) with two active electrons restricted to one dimension, we examine high-order harmonic generation (HHG) enhanced by rescattering. Our results show that even at intensities well below the single ionization saturation, harmonics generated from the cation (A2+) can be significantly enhanced due to the rescattering of the electron that is initially ionized. This two-electron effect is manifested by the appearance of a secondary plateau and cutoff in the HHG spectrum, extending beyond the predicted cutoff in the single active electron approximation. We use our molecular model to investigate the wavelength dependence of rescattering enhanced HHG, …

Wavelength And Intensity Dependence Of Recollision-Enhanced Multielectron Effects In High-Order Harmonic Generation, Paul M. Abanador, François Mauger, Kenneth Lopata, Mette B. Gaarde, Kenneth J. Schafer

Faculty Publications

© 2018 American Physical Society. Using a model molecular system (A2) with two active electrons restricted to one dimension, we examine high-order harmonic generation (HHG) enhanced by rescattering. Our results show that even at intensities well below the single ionization saturation, harmonics generated from the cation (A2+) can be significantly enhanced due to the rescattering of the electron that is initially ionized. This two-electron effect is manifested by the appearance of a secondary plateau and cutoff in the HHG spectrum, extending beyond the predicted cutoff in the single active electron approximation. We use our molecular model to investigate the wavelength …

Corrigendum To: “Nonlinear Muckenhoupt–Wheeden Type Bounds On Reifenberg Flat Domains, With Applications To Quasilinear Riccati Type Equations” [Adv. Math. 250 (2014) 387–419] (S0001870813003630) (10.1016/J.Aim.2013.09.022)), Cong Phuc Nguyen

Faculty Publications

N.C. Phuc, Nonlinear Muckenhoupt–Wheeden type bounds on Reifenberg flat domains, with applications to quasilinear Riccati type equations, Adv. Math. 250 (2014), 387–419. The proof of Theorem 1.6 in the above paper contains a gap. In general, the continuity of the map S stated in Lemma 5.8 may fail. This error was inherited from our earlier work [28, Theorem 3.4], which has now been corrected in the erratum [2]. The purpose of this note is to fix this gap following the main idea of [2]. We shall use the same notation as in the paper. Given a nonnegative locally finite measure …

Geometric Design, John Marceaux

Honors Capstones

No abstract provided.

Effect Of Vitrification On Epigenetic Modifications And The Meiotic Spindle Of Bovine Oocytes, Emilio Jose Gutierrez-Castillo

LSU Master's Theses

While oocyte vitrification has become a common practice, it still faces some challenges such as the low survival rates after warming, probably related to cryoinjuries and cryoprotectant (CPA) toxicity. Evidence suggests that vitrification might have an effect on the patterns of some epigenetic marks including DNA methylation and histone acetylation. During fertilization and embryogenesis, key events for healthy and adequate embryo development take place, not only governed by the information contained within the DNA sequence, but also by epigenetic mechanisms.

This study was aimed at determining the effect of vitrification and CPA exposure, using a combination of ethylene glycol (EG) …

Development Of An Autodissemination Strategy For The Deployment Of Novel Control Agents Targeting The Common Malaria Mosquito, Anopheles Quadrimaculatus Say (Diptera: Culicidae), Daniel R. Swale, Zhilin Li, Jake Z. Kraft, Kristen Healy, Mei Liu, Connie M. David, Zhijun Liu, Lane D. Foil

Faculty Publications

© 2018 Swale et al. Background: The reduced efficacy of current Anopheline mosquito control methods underscores the need to develop new methods of control that exploit unique target sites and/or utilizes novel deployment methods. Autodissemination methodologies using insect growth regulators (IGRs) is growing in interest and has been shown to be effective at controlling Aedes mosquitoes in semi-field and field environments, yet little information exists for Anopheline mosquitoes. Therefore, we tested the hypothesis that female-driven autodissemination of an IGR combined with a new mechanism of action insecticide (Kir channel inhibitor) could be employed to reduce Anopheline populations. Methodology: We studied …

The Use Of Cosmic-Ray Muons In The Energy Calibration Of The Beta-Decay Paul Trap Silicon-Detector Array, T. Y. Hirsh, A. Pérez Gálvan, M. T. Burkey, A. Aprahamian, F. Buchinger, S. Caldwell, J. A. Clark, A. T. Gallant, E. Heckmaier, A. F. Levand, S. T. Marley, G. E. Morgan, A. Nystrom, R. Orford, G. Savard, N. D. Scielzo, R. Segel, K. S. Sharma, K. Siegl, B. S. Wang

Faculty Publications

This article presents an approach to calibrate the energy response of double-sided silicon strip detectors (DSSDs) for low-energy nuclear-science experiments by utilizing cosmic-ray muons. For the 1-mm-thick detectors used with the Beta-decay Paul Trap, the minimum-ionizing peak from these muons provides a stable and time-independent in situ calibration point at around 300 keV, which supplements the calibration data obtained above 3 MeV from α sources. The muon-data calibration is achieved by comparing experimental spectra with detailed Monte Carlo simulations performed using GEANT4 and CRY codes. This additional information constrains the calibration at lower energies, resulting in improvements in quality and …

Multiple Episodes Of Extensive Marine Anoxia Linked To Global Warming And Continental Weathering Following The Latest Permian Mass Extinction, Feifei Zhang, Stephen J. Romaniello, Thomas J. Algeo, Kimberly V. Lau, Matthew E. Clapham, Sylvain Richoz, Achim D. Herrmann, Harrison Smith, Micha Horacek, Ariel D. Anbar

Faculty Publications

Copyright © 2018 The Authors. Explaining the ∼5-million-year delay in marine biotic recovery following the latest Permian mass extinction, the largest biotic crisis of the Phanerozoic, is a fundamental challenge for both geological and biological sciences. Ocean redox perturbations may have played a critical role in this delayed recovery. However, the lack of quantitative constraints on the details of Early Triassic oceanic anoxia (for example, time, duration, and extent) leaves the links between oceanic conditions and the delayed biotic recovery ambiguous. We report high-resolution U-isotope (δ238U) data from carbonates of the uppermost Permian to lowermost Middle Triassic Zal section (Iran) …

From The Water: Interpreting The Legacy Of Bayou Teche, Joni Elizabeth Emmons

LSU Master's Theses

The Bayou Teche, winding 135 miles from its origin in Port Barre to meet the Atchafalaya River in Patterson, has played an integral role in the environmental, economic, industrial, and cultural development of South Louisiana. The Teche has been called “Louisiana’s most famous bayou” and has been home to two Native American tribes, European settlers, Acadian exiles, African and Carribean slaves, and American colonists, each group contributing to the dynamic identity of the region. Current bayou conditions evidence such an exchange, bearing witness to the range of values that have shaped the bayou’s ecological and cultural context since its earliest …

Paclitaxel Enhances Oncolytic Potential Of Herpes Simplex Virus Type-1 In Cancer Cells, Misagh Naderi

LSU Master's Theses

Taxanes are spindle poisons that bind to and stabilize microtubules resulting in mitotic arrest. Herpes simplex Typ-1 (HSV-1) virions utilize the microtubular network for intracellular transport during both virus entry and virus egress from infected cells. It has been reported previously that taxanes may synergize with oncolytic herpes simplex viruses in the treatment of experimental prostate and breast tumors in mice. Other reports have indicated that taxanes may inhibit viral replication in infected cells. In this study the previously characterized Oncolytic Herpes Simplex Virus type 1 (OSVP), which was constructed in Kousoulas lab was used in conjugation with paclitaxel (taxol) …

Salvation Of Landscape: Landscape Remediation Of Desertification In China, Chenliang Ma

LSU Master's Theses

The evolution of human civilization has been accompanied by the replacement of the Earth’s natural landforms. The cities, oases and grasslands from 1000 years ago may have now been transformed into desert. Now, desertification has become a global environmental problem. Many regions and countries are facing development constraints and environmental challenges posed by desertification. Arid and semi-arid areas are extremely prone to land degradation leading to desertification. China faces the threat of a quarter of its land being degraded. Desertification is one of the most serious outcomes of land degradation. Ironically, the part of China with the most serious desertification …

Nanostructured Materials Derived From Metal-Organic Frameworks For Energy And Environmental Applications, Zhiqiang Xie

LSU Doctoral Dissertations

Nowadays, energy and environmental issues have become the top priority among a series of global issues. Fossil fuels as the dominant source are depleted fast and usually lead to some environmental problems. Heavy metal pollution has posed a severe threat to environment and public health. Metal-organic frameworks (MOFs), as a very promising category of porous materials, have attracted more and more interest in research communities due to their extremely high surface areas, diverse nanostructures and unique properties. To meet the ever-increasing energy demand and tackle the heavy metal pollution in water, MOFs can function as ideal templates to prepare various …

Ukirt-2017-Blg-001lb: A Giant Planet Detected Through The Dust, Y. Shvartzvald, S. Calchi Novati, B. S. Gaudi, G. Bryden, D. M. Nataf, M. T. Penny, C. Beichman, C. B. Henderson, S. Jacklin, E. F. Schlafly, M. J. Huston

Faculty Publications

We report the discovery of a giant planet in event UKIRT-2017-BLG-001, detected by the United Kingdom Infrared Telescope (UKIRT) microlensing survey. The mass ratio between the planet and its host is =-q 1.50+0.170-0.14 0.17 3, about 1.5 times the Jupiter/Sun mass ratio. The event lies 0 .35 from the Galactic center and suffers from high extinction of AK=1.68. Therefore, it could be detected only by a near-infrared (NIR) survey. The field also suffers from large spatial differential extinction, which makes it difficult to estimate the source properties required to derive the angular Einstein radius. Nevertheless, we find evidence suggesting that …

Serving A Segregated City: Primary Medical Care Access Disparities In Baton Rouge, Louisiana, Michael Vingiello

Honors Capstones

No abstract provided.

Signature Of Charge Migration In Modulations Of Double Ionization, François Mauger, Paul M. Abanador, Adam Bruner, Adonay Sissay, Mette B. Gaarde, Kenneth Lopata, Kenneth J. Schafer

Faculty Publications

We present a theoretical investigation of charge migration following strong-field ionization in a multielectron system. We study a model homonuclear molecule with two electrons, each restricted to one dimension (1+1D), interacting with a strong, static electric field. We show that in this system charge migration results from the interplay between multiple ionization channels that overlap in space, creating a coherent electron-hole wave packet in the cation. We also find that, in our case, charge migration following the first ionization manifests as a modulation of the subsequent double-ionization signal. We derive a parametrized semiclassical model from the full multielectron system and …

Signature Of Charge Migration In Modulations Of Double Ionization, François Mauger, Paul M. Abanador, Adam Bruner, Adonay Sissay, Mette B. Gaarde, Kenneth Lopata, Kenneth J. Schafer

Faculty Publications

© 2018 American Physical Society. We present a theoretical investigation of charge migration following strong-field ionization in a multielectron system. We study a model homonuclear molecule with two electrons, each restricted to one dimension (1+1D), interacting with a strong, static electric field. We show that in this system charge migration results from the interplay between multiple ionization channels that overlap in space, creating a coherent electron-hole wave packet in the cation. We also find that, in our case, charge migration following the first ionization manifests as a modulation of the subsequent double-ionization signal. We derive a parametrized semiclassical model from …

A Tale Of Two Cycles, Kai Wang, John C. Larkin

Faculty Publications

© 2018 Elsevier Inc. Two of the fundamental rhythms of eukaryotic life are the circadian clock and the cell division cycle. In this issue of Developmental Cell, Fung-Uceda and colleagues (2018) have elucidated a molecular mechanism linking the circadian clock to the cell cycle in the plant Arabidopsis thaliana. Two of the fundamental rhythms of eukaryotic life are the circadian clock and the cell division cycle. In this issue of Developmental Cell, Fung-Uceda and colleagues (2018) have elucidated a molecular mechanism linking the circadian clock to the cell cycle in the plant Arabidopsis thaliana.

Using Github In Large Software Engineering Classes: An Exploratory Case Study, Miroslav Tushev

LSU Master's Theses

GitHub has been recently used in Software Engineering (SE) classes to facilitate col- laboration in student team projects. The underlying tenet is that the technical and social feature of GitHub can help students to communicate and collaborate more effectively as a team as well as help teachers to evaluate individual student contribution more objectively. To shed more light on this, in this case study, we explore the benefits and drawbacks of using GitHub in SE classes. Our study is conducted in a software engineering class of 91 students divided into 18 teams. Our research method includes an entry and an …

Alternative Techniques For Alfaxalone Anesthesia Induction In Dogs And Cats, Angie Lagos

LSU Master's Theses

Alfaxalone is a neuroactive synthetic steroid (Brewster & Bodor, 1990) that produces anesthetic induction with dose- and speed-dependent cardiorespiratory depression in dogs and cats (Chiu et al. 2016; Warne et al., 2015). At clinical doses in unpremedicated dogs (2 mg kg^-1) and cats (5 mg kg^-1), alfaxalone induces a mild decrease in systemic vascular resistance, systemic blood pressure (Muir et al., 2009; Muir et al., 2008), apnea, hypoventilation, and hypoxemia (Muir et al. 2009; Muir et al., 2008). The cardiorespiratory side effects from alfaxalone induction could be prevented by reducing the total dose of alfaxalone necessary …

Political Giving As Civic Participation: Identifying Donors And Motivating Giving, Robyn Lynn Stiles

LSU Doctoral Dissertations

The study of political donations has previously been limited to surveys of identified donors and analysis of reported giving data, and oftentimes limited to higher-dollar donors. A comprehensive review of the current political giving literature yields two distinct questions: first, what role do resources play in determining who gives, and second, what ultimately prompts people to donate to a political organization? I utilize secondary survey data in my first chapter to examine the role of resources and gender in political giving. This chapter provides insight to whether gender merely represents the availability of resources necessary for participation, or whether it …

Effect Of Increasing Levels Of Monosilicic Acid On Arsenic And Phosphorus Sorption In Soil, Flávia Bastos Agostinho

LSU Doctoral Dissertations

Arsenic (As) accumulation in rice (Oryza sativa) grains has increased human’s daily intake. Studies have shown that arsenite is taken up through known silicon (Si) transporters in rice. Moreover, the availability of As in soil is affected by chemically similar ligands that have high affinity to oxides surfaces, such as Si and phosphorus (P). Studies were conducted to: (I) investigate the role of elevated levels of Si on the concentration of different As fractions in soil and on As uptake by rice; (II) evaluate the effect of increasing monosilicic acidconcentrations on As sorption and kinetics in soil; and …

Metacarpal Ratio And Its Relation To Sexual Dimorphism In Primates With Different Mating Strategies, Emilee Hart

LSU Master's Theses

The digit ratio (2D:4D) is a sexually dimorphic trait in mammalian hands that is a result of levels of prenatal androgen exposure (PNAE) during limb development. Previous studies have shown that females have a higher ratio than males and that sexual dimorphism in the ratio is greater in species with polygynous mating strategies and high levels of intermale aggression compared to monogamous species with low intermale aggression. This study used metacarpals instead of phalanges to test the hypotheses that the metacarpal ratio (2Mc:4Mc) will be higher in females than males within a species and that the ratio would be more …

Waste Management By Waste: Removal Of Acid Dyes From Wastewaters Of Textile Coloration Using Fish Scales, S M Fijul Kabir

LSU Master's Theses

Removal of hazardous acid dyes by economical process using low-cost bio-sorbents from wool industry wastewaters is of a pressing need, since it causes skin and respiratory diseases and disrupts other environmental components. Fish scales (FS), a by-product of fish industry, a type of solid waste, are usually discarded carelessly resulting in pungent odor and environmental burden. In this research, the FS of black drum (Pogonias cromis) were used for the removal of acid dyes (acid red 1 (AR1), acid blue 45 (AB45) and acid yellow 127 (AY126)) from wool industry wastewaters by absorption process with a view to …

In-Between: The Spaces Of Modernity, Elisa Fabris Valenti

LSU Master's Theses

During the past three years as a graduate student, I have experienced loneliness. Having recently emigrated from Italy, I have often asked myself why I am experiencing such hard times adjusting to a different country. My thesis explores this question. Referring to Marc Augé’s idea of non-place, I have chosen a geographical and spatial starting point to approach my work. Italian cities are built around the central piazza where social, political, and economic life revolves. In my thesis, I depict American spaces that lack specific location and create solitude within the urban corridors. Private feelings, such as loneliness, are paradoxes …

Effects Of Application Timing And Soil Type On Optimal N Rate Requirement Of Sugarcane (Saccharum Spp.) And Changes In Soil Inorganic And Leaf N Concentrations, Joseph Martin Garrett

LSU Master's Theses

Research is limited on the effects of soil types and early nitrogen (N) fertilizer applications to N management strategies in sugarcane (Saccharum spp.) production in Louisiana. This study was established in 2015 at two locations in St. Gabriel, LA to 1) determine the effect of fertilizer application timing and soil type on the optimal N rate requirement and yield of sugarcane and 2) relate the relationship of soil and leaf N content to yield at different growth stages with sugarcane yield. Treatments were set in a randomized block design on a clay soil and in a complete randomized …

"چقدر ایرانی هستم؟ در جستجوی هویتم" (How Iraniam Am I Still? In Search Of My Identity): 21st-Century Iranian Immigrant Identity Formation In The United States, Aram Emamjomeh

LSU Master's Theses

This thesis studies Iranian student immigrants in the United States in the special political tensions between the two countries from 2000 until present. This research provides a holistic view of understanding the new identity which Iranian students have reconstructed at the intersection of Iranian culture and U.S. culture through their past identity in confronting a new situation. It describes how Iranian students use individual, intellectual, and social resources to deal with the ignorance was that imposed on them when the governments of the two countries began to fight each other to achieve more political power. Data is collected from three …