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Articles 2311 - 2340 of 3417
Full-Text Articles in Physical Sciences and Mathematics
Markovian Properties Of The Pauli-Fierz Model, Ameur Dhahri
Markovian Properties Of The Pauli-Fierz Model, Ameur Dhahri
Communications on Stochastic Analysis
No abstract provided.
Nutrient Limitation On Phytoplankton Growth In The Upper Barataria Basin, Louisiana: Microcosm Bioassays, Ling Ren, Nancy N. Rabalais, R. Eugene Turner, Wendy Morrison, Warren Mendenhall
Nutrient Limitation On Phytoplankton Growth In The Upper Barataria Basin, Louisiana: Microcosm Bioassays, Ling Ren, Nancy N. Rabalais, R. Eugene Turner, Wendy Morrison, Warren Mendenhall
Faculty Publications
The Davis Pond Diversion (DPD) was constructed to divert Mississippi River (MR) water into the Barataria Basin to reduce the salinity in support of wetland restoration on the Louisiana coast. To assess the phytoplankton nutrient limitation in adjacent water systems and potential impacts of DPD, 12 seasonal nutrient-phytoplankton bioassay experiments were conducted from October 2003 to July 2004 using the natural phytoplankton assemblages from freshwater and brackish-water lakes, Cataouatche and Salvador, LA (USA), which receive Mississippi River water from the DPD, and from a nearby freshwater lake, Lac des Allemands, that does not. Dissolved inorganic nitrogen (N), phosphorus (P), and …
Eastern Mediterranean Pore Waters: Clues Into The Geochemical Pathways From Evaporated Seawater To Basinal Brines, Jessica A. Mumphrey
Eastern Mediterranean Pore Waters: Clues Into The Geochemical Pathways From Evaporated Seawater To Basinal Brines, Jessica A. Mumphrey
Honors Theses
No abstract provided.
Petarxiv: An Archive For Scientific Simulations In Petashare, Tyler Barker
Petarxiv: An Archive For Scientific Simulations In Petashare, Tyler Barker
Honors Theses
No abstract provided.
Mechanical Optimization Of Vertical Axis Wind Turbine Blades, Alexander Laurence Combe
Mechanical Optimization Of Vertical Axis Wind Turbine Blades, Alexander Laurence Combe
Honors Theses
No abstract provided.
Breaking The Spell: Developing A New Generation Of Porphyrins For Treating Cerebral Tumors, Ryan Harrison Gray
Breaking The Spell: Developing A New Generation Of Porphyrins For Treating Cerebral Tumors, Ryan Harrison Gray
Honors Theses
No abstract provided.
Co-Evolution Of Super Massive Black Holes And Their Surrounding Galactic Bulges, Joseph Chatelain
Co-Evolution Of Super Massive Black Holes And Their Surrounding Galactic Bulges, Joseph Chatelain
Honors Theses
No abstract provided.
Nutrient Enrichment Drives Gulf Of Mexico Hypoxia, Donald F. Boesch, Walter R. Boyton, Larry B. Crowder, Robert J. Diaz, Robert W. Howarth, Laurence D. Mee, Scott W. Nixon, Nancy N. Rabalais, Rutger Rosenberg, James G. Sanders, Donald Scavia, R. Eugene Turner
Nutrient Enrichment Drives Gulf Of Mexico Hypoxia, Donald F. Boesch, Walter R. Boyton, Larry B. Crowder, Robert J. Diaz, Robert W. Howarth, Laurence D. Mee, Scott W. Nixon, Nancy N. Rabalais, Rutger Rosenberg, James G. Sanders, Donald Scavia, R. Eugene Turner
Faculty Publications
No abstract provided.
Convergence To Weighted Fractional Brownian Sheets, Johanna Garzón
Convergence To Weighted Fractional Brownian Sheets, Johanna Garzón
Communications on Stochastic Analysis
No abstract provided.
On The Distributions Of The Sup And Inf Of The Classical Risk Process With Exponential Claim, Jorge A León, José Villa
On The Distributions Of The Sup And Inf Of The Classical Risk Process With Exponential Claim, Jorge A León, José Villa
Communications on Stochastic Analysis
No abstract provided.
Optimal Consumption And Portfolio For An Insider In A Market With Jumps, Delphine David, Yeliz Yolcu Okur
Optimal Consumption And Portfolio For An Insider In A Market With Jumps, Delphine David, Yeliz Yolcu Okur
Communications on Stochastic Analysis
No abstract provided.
A Stochastic Process Associated With The Weighted White Noise Differentiation, Issei Kitagawa
A Stochastic Process Associated With The Weighted White Noise Differentiation, Issei Kitagawa
Communications on Stochastic Analysis
No abstract provided.
Stochastic Heat Equation With Infinite Dimensional Fractional Noise: L_{2}-Theory, Raluca Balan
Stochastic Heat Equation With Infinite Dimensional Fractional Noise: L_{2}-Theory, Raluca Balan
Communications on Stochastic Analysis
No abstract provided.
Pac Commutators And The R-Transform, Aurel I Stan
Pac Commutators And The R-Transform, Aurel I Stan
Communications on Stochastic Analysis
No abstract provided.
An Interacting Fock Space Characterization Of Probability Measures, Luigi Accardi, Hui-Hsiung Kuo, Aurel I Stan
An Interacting Fock Space Characterization Of Probability Measures, Luigi Accardi, Hui-Hsiung Kuo, Aurel I Stan
Communications on Stochastic Analysis
No abstract provided.
Universal Malliavin Calculus In Fock And Lévy-Itô Spaces, David Applebaum
Universal Malliavin Calculus In Fock And Lévy-Itô Spaces, David Applebaum
Communications on Stochastic Analysis
No abstract provided.
Sample Properties Of Random Fields. I. Separability And Measurability, Jürgen Potthoff
Sample Properties Of Random Fields. I. Separability And Measurability, Jürgen Potthoff
Communications on Stochastic Analysis
No abstract provided.
A Class Of Anticipating Linear Stochastic Differential Equations, Julius Esunge
A Class Of Anticipating Linear Stochastic Differential Equations, Julius Esunge
Communications on Stochastic Analysis
No abstract provided.
The Storm 2.0 Project Next Generation Hurricane Data Collection, Santhana Krishnan Balaji
The Storm 2.0 Project Next Generation Hurricane Data Collection, Santhana Krishnan Balaji
Honors Theses
No abstract provided.
The Two-Sum Of Ribbon Graphs And The Bolloba ́S-Riordan-Tutte Polynomial, Brittan Farmer
The Two-Sum Of Ribbon Graphs And The Bolloba ́S-Riordan-Tutte Polynomial, Brittan Farmer
Honors Theses
No abstract provided.
Comments On Buzan Et Al. “Positive Relationships Between Freshwater Inflow And Oyster Abundance In Galveston Bay, Texas”, R. Eugene Turner
Comments On Buzan Et Al. “Positive Relationships Between Freshwater Inflow And Oyster Abundance In Galveston Bay, Texas”, R. Eugene Turner
Faculty Publications
Buzan et al. critique Turner’s (Estuaries and Coasts 29:345–352, 2006) analysis of the relationship between freshwater inflow and oyster productivity in the Gulf of Mexico, using 16 years of fisheries-independent data for Galveston Bay. They conclude that the catch-per-unit effort (CPUE; number h−1) of marketable oysters increase 1 to 2 years after years with increased freshwater inflows, and they express concerns that water supply managers may mis-apply the results of Turner (Estuaries and Coasts 29:345–352, 2006) to justify a reduced freshwater inflow to Galveston Bay. I find no relationship between the CPUE of oyster spat or marketable oyster density and …
White Noise Methods For Anticipating Stochastic Differential Equations, Julius Esunge
White Noise Methods For Anticipating Stochastic Differential Equations, Julius Esunge
LSU Doctoral Dissertations
This dissertation focuses on linear stochastic differential equations of anticipating type. Owing to the lack of a theory of differentiation for random processes, the said differential equations are appropriately understood and studied as anticipating stochastic integral equations. The unfolding work considers equations in which anticipation arises either from the initial condition or the integrand. In this regard, the techniques of white noise analysis are applied to such equations. In particular, by using the Hitsuda-Skorokhod integral which nicely extends the It integral to anticipating integrands, we then apply the S-transform from white noise analysis to study this new equation.
Scanning Probe Microscopy Investigations Of (1) Arrays Of Cysteine-Coated Cds Nanoparticles And (2) Structures Formed During The Early Stages Of The Corrosion Of Copper Surfaces, Brian Robert Lewandowski
Scanning Probe Microscopy Investigations Of (1) Arrays Of Cysteine-Coated Cds Nanoparticles And (2) Structures Formed During The Early Stages Of The Corrosion Of Copper Surfaces, Brian Robert Lewandowski
LSU Doctoral Dissertations
Scanning probe microscopy (SPM) characterizations are becoming more prevalent for surface investigations due to their capabilities for obtaining structural information and physical measurements. New capabilities of SPM for studying and controlling nanoscale processes are emerging as valuable assets in research. A fundamental understanding of the interactions of surface reactions provides essential information for developing workable applications for nanotechnology. Two applications of SPM are discussed in this dissertation. The first investigation uses atomic force microscopy (AFM) for the characterization of nanostructures produced with a newly developed lithographic technique called “two-particle” lithography. This new technique is based on particle lithography for the …
Task Specific Ionic Liquids For Enantiomeric Recognition And Nanomaterials For Biomedical Imaging, David Kipkogei Bwambok
Task Specific Ionic Liquids For Enantiomeric Recognition And Nanomaterials For Biomedical Imaging, David Kipkogei Bwambok
LSU Doctoral Dissertations
Ionic liquids (ILs) are organic salts that melt at or below 100°C. Interest in ILs continues to grow due to their unique properties such as lack of measurable vapor pressure, high thermal stability, tunability and recyclability. The first part of this dissertation explores the use of chiral ionic liquids (CILs) for enantiomeric recognition of chiral analytes using fluorescence spectroscopy. Chiral analyses continue to be a subject of considerable interest primarily as a result of legislation introduced by the Food and Drug Administration. This has led to an increased need for suitable chiral selectors and methods to verify the enantiomeric forms …
Studies Of Homogeneous Dirhodium Catalyst System, Catherine L. Thomas Alexander
Studies Of Homogeneous Dirhodium Catalyst System, Catherine L. Thomas Alexander
LSU Doctoral Dissertations
Hydroformylation studies were conducted to investigate the effects of various H&sub2;/CO ratios on rac-[Rh&sub2;H&sub2;(μ-CO)&sub2;(et,ph-P4)]²+;, a dirhodium tetraphosphine catalyst system. Similar experiments were also conducted with monometallic catalysts based on BISBI, NAPHOS, and Xantphos, some of the best bisphosphine ligands for hydroformylation catalysis. This was due to the lack of information in literature on the effects of variable ratios and pressures on activities and selectivities of catalysts that contain bisphosphine ligands, and these studies were also used as a basis of comparison for the dirhodium system. Results indicate that the dirhodium system is more efficient with higher H&sub2;/CO ratios (2:1, 90 …
Local Behavior Of Distributions And Applications, Jasson Vindas
Local Behavior Of Distributions And Applications, Jasson Vindas
LSU Doctoral Dissertations
This dissertation studies local and asymptotic properties of distributions (generalized functions) in connection to several problems in harmonic analysis, approximation theory, classical real and complex function theory, tauberian theory, summability of divergent series and integrals, and number theory. In Chapter 2 we give two new proofs of the Prime Number Theory based on ideas from asymptotic analysis on spaces of distributions. Several inverse problems in Fourier analysis and summability theory are studied in detail. Chapter 3 provides a complete characterization of point values of tempered distributions and functions in terms of a generalized pointwise Fourier inversion formula. The relation of …
Subaqueous, Hurricane-Initiated Shelf Failure Morphodynamics Along The Mississippi River Delta Front, North-Central Gulf Of Mexico, Walter Scott Guidroz
Subaqueous, Hurricane-Initiated Shelf Failure Morphodynamics Along The Mississippi River Delta Front, North-Central Gulf Of Mexico, Walter Scott Guidroz
LSU Doctoral Dissertations
Seafloor instability along the Mississippi River Delta Front (MRDF) gained renewed attention with the landfall of Hurricanes Ivan (2004) and Katrina (2005). Traditional root causes for MRDF shelf failure were exacerbated by sea-state conditions associated with these severe tropical cyclones and their interaction with the seafloor. These conditions were characterized by large waves, long wave periods and wave-induced turbulence in the bottom boundary layer and throughout the water column. An evaluation of local and regional MRDF bathymetry data revealed substantial changes in seafloor elevation and the immediate subsurface sediment profile, hypothesized as the end result of cyclic wave-seafloor interaction, seafloor …
Storm Surge Dynamics Over Wide Continental Shelves: Numerical Experiments Using The Finite-Volume Coastal Ocean Model, Joao Lima Rego
Storm Surge Dynamics Over Wide Continental Shelves: Numerical Experiments Using The Finite-Volume Coastal Ocean Model, Joao Lima Rego
LSU Doctoral Dissertations
Storm surge is an abnormal rise of the sea surface caused by atmospheric forcing, including the wind stress and atmospheric pressure associated with extra-tropical and tropical cyclones. Hurricanes and typhoons have a great impact on coastal regions, and can cause severe loss of lives and great damages. A systematic investigation of storm surge impact to the coasts of Louisiana and Texas, where the continental shelf reaches up to 200 km in width, is conducted here using the hydrodynamics Finite-Volume Coastal Ocean Model, FVCOM (Chen et al., 2003). The model is applied to the northern Gulf of Mexico to simulate the …
Synthesis And Characterization Of Transition Metal And Metal Oxide Nanoparticles Using Dendritic Complexes, Elisabeta Mitran
Synthesis And Characterization Of Transition Metal And Metal Oxide Nanoparticles Using Dendritic Complexes, Elisabeta Mitran
LSU Doctoral Dissertations
The research in this dissertation focuses on the synthesis and characterization of metal/metal oxide nanoparticles in solution and on surfaces with a high degree of control over size and size dispersity; such well-defined nanoparticles were made using metal ion-dendrimer complexes and silica-supported organometallic dendrimers. The metal oxide-based materials can be used as laboratory surrogates for combustion-generated nanoparticles to assess their role in mediating pollutant formation. Nickel nanoparticles with low size dispersity were prepared by a dendrimer-ligand-based method employing five generations amine-terminated poly(propylene imine) dendrimer, DAB-Amn. After coordination, borohydride reduction of Ni(II) ion-dendrimer complexes yielded Ni(0) nanoparticles, as determined by X-ray …
The Role Of Climate Variability And Riverine Pulsing In The Community Dynamics Of Estuarine Nekton In Breton Sound, Louisiana, Bryan Patrick Piazza
The Role Of Climate Variability And Riverine Pulsing In The Community Dynamics Of Estuarine Nekton In Breton Sound, Louisiana, Bryan Patrick Piazza
LSU Doctoral Dissertations
Climate controls biotic community composition at multiple spatiotemporal scales through variability in environmental control mechanisms (assembly filters). This research investigated the role of climate variability in the community dynamics of estuarine nekton in Breton Sound estuary, Louisiana, and, specifically the effects of El Niño Southern Oscillation (ENSO), freshwater discharge, and a tropical cyclone. A teleconnection was found between ENSO and juvenile brown shrimp (Farfantepenaeus aztecus) abundance in Breton Sound from 1988 – 2007. ENSO affected winter weather conditions (air pressure, temperature and precipitation), and spring brown shrimp abundance in Breton Sound. Juvenile brown shrimp abundance lagged ENSO by …