Physical Sciences and Mathematics Commons^™

Backfilling Canals To Restore Wetlands: Empirical Results In Coastal Louisiana, R. Eugene Turner, James M. Lee, Christopher Neill

Faculty Publications

Wetland restoration is largely a developing science and engineering enterprise. Analyses of results are too few and constrained to observations over a few years. We report here on the effectiveness of one restoration technique used sparsely in coastal Louisiana for several decades. Canals have been dredged in coastal Louisiana wetlands since 1938 for oil and gas exploration and extraction. These canals are typically dredged to 2.5 m depth and are 20 to 40 m wide. Canal lengths vary from 100 m to several 1000s m in the case of outer continental shelf pipeline canals that cross the wetlands.

Today, thousands …

The Effect Of Ionizing Radiation Damage On Transconductance Of Short N-Channel Igfets, Vivek Subramanian

Honors Theses

No abstract provided.

Carbon, Nitrogen, And Phosphorus Leaching Rates From Spartina Alterniflora Salt Marshes, R. Eugene Turner

Faculty Publications

Annual carbon, nitrogen, and phosphorus leachate rates from live Spartina alterniflora Loisel in a Louisiana (USA) salt marsh were estimated to be 200, 14, and 3 g m-2, respectively, and to peak in summer and higher salinit~es. Leachate losses of P, N and C are equivalent to a turnover of live plant tissues of 10, 17 and 49 d, respectively, when submerged, and 148, 250 and 721 d, respectively, when unsubmerged. Plant leachate losses during marsh submergence and non-submergence are nearly equal because release rates are 15x greater during submergence. Nitrogen and carbon concentrations relative to phosphorus are proportionately 4x …

Effects Of Sequence Length And Statistical Structure On Sequence-Specific Learning In A Serial Rt Task, Craig B. Neely

Honors Theses

No abstract provided.

Eruption Dynamics And Petrology Of The Most Recent Eruptions Of Nevado Del Ruiz Volcano, Colombia, South America, Richard Henry Young

LSU Historical Dissertations and Theses

Field measurements and petrographic analyses of pumices from the most recent tephra deposits of Nevado del Ruiz volcano provide a context in which to view the disastrous eruption of 13 November, 1985 (R0). The pumices are all crystal-rich, two-pyroxene andesites to dacites with whole rock SiO₂ contents of 62 - 66 wt.%, and magma water contents estimated to be between 1 - 4 wt.%. The 1985 tephra has greater petrologic diversity than earlier deposits which may be related to an input of a hotter, more basic magma into the Ruiz system, as suggested by xenocrystic olivine which is most …

Detecting The Obese Higgs —> Z° + Z° Decay At The Ssc, Using A Simple Detector Simulation, Gregory Griffin

Honors Theses

No abstract provided.

On The Computation Of Bang-Bang Controls, Carol San Soucie

Honors Theses

No abstract provided.

Modern Algebra And Discrete Structures, R. F. Lax

E-Textbooks

This text is intended for either an applied algebra course or a modern algebra course that includes more applications than has been traditional. It is at an advanced undergraduate (junior-senior) level and is suitable for a one-semester or two-quarter course. We assume that students have already had a course in linear algebra (although we briefly review concepts from linear algebra when they are needed in the sections on fields and linear codes).

Our treatment is fairly rigorous, with almost every proof supplied. However, we have tried to concentrate on examples and applications. In an applied algebra course, which usually consists …

Consistency And Stability For Linear Finite Difference Approximations, Cabe W. Chadick

Honors Theses

No abstract provided.

Glyconeogenesis From Alanine By Diaphragm Muscle, Stephanie A. Mills

Honors Theses

No abstract provided.

Geology, Volcanology, And Petrology Of Cerro Bravo, A Young, Dactic, Stratovolcano In West-Central Colombia, David Tondl Lescinsky

LSU Historical Dissertations and Theses

The northernmost active Andean volcano, Cerro Bravo is a small, young, and very explosive stratovolcano. Cerro Bravo has produced voluminous tephra deposits, that are found> 30 km away, as well as, pumice flow deposits, block and ash flow deposits, and high-aspect lava flows, which are found proximally to the volcano. There have been eight episodes of activity during the past 6250±110 years (Herd, 1982), with the most recent <200 years ago and the present being a period of quiescence with no visible activity or thermal manifestations. Stratigraphic relationships suggest the occurrence of an initial explosive phase and a concluding effusive phase of activity during individual episodes. The products of volcanic activity at Cerro Bravo are a chemically and mineralogically monotonous suite of medium-K dacite and high-silica andesite (59.2- 67.5% SiO₂ pumices and lavas. The dominant phenocrysts present are plagioclase and hornblende (oxyhomblende in lavas) with lesser quantities of orthopyroxene, titanomagnetite, and rare augite and biotite also present. Petrology and eruption dynamics …

Benthic Foraminiferal Assemblages From Mexican Continental Shelves, Maria De La Luz Mata

LSU Historical Dissertations and Theses

The recent benthic foraminifera 1 fauna of the continental margins of Mexico (Gulf of Campeche and Gulf of Tehuantepec) was studied. Surficial sediment samples (lOcc) were collected using a Shipeck dredge and were stained with Sudan Black "B" in order to differentiate the living fauna from the death assemblage. In the 41 samples from the Gulf of Campeche, 279 species were found in the total assemblage in water depths ranging from 9 to 586 m. In the 22 samples in the Gulf of Tehuantepec, 132 species were identified from the total assemblage in water depths of 20 to 180 m. …

Scs 98: Z-Continuity, Z-Hypercompactness And Complete Distributivity, Marcel Erné

Seminar on Continuity in Semilattices

Source: University archive of the Technische Universität Darmstadt.

Scs 97: Z-Continuous Posets, Z-Ary Closure Spaces And Generalized Soberness, Marcel Erné

Seminar on Continuity in Semilattices

Source: University archive of the Technische Universität Darmstadt.

Scs 96: Generators And Weights Of Completely Distributive Lattices, Marcel Erné

Seminar on Continuity in Semilattices

No abstract provided.

Scs 95: Fixed Point Constructions For Standard Completions, Marcel Erné

Seminar on Continuity in Semilattices

No abstract provided.

Scs 94: Algebraic Theories For Proper Filter Monads, Oswald Wyler

Seminar on Continuity in Semilattices

No abstract provided.

Scs 93: Refinement Monoids, Hans Dobbertin

Seminar on Continuity in Semilattices

Source: University archive of the Technische Universität Darmstadt.

Scs 92: Products Of Continuous Partially Ordered Sets, Marcel Erné

Seminar on Continuity in Semilattices

No abstract provided.

Scs 91: Compactly Generated And Continuous Closure Systems, Marcel Erné

Seminar on Continuity in Semilattices

No abstract provided.

Scs 90: About Polytopes Of Valuations On Finite Distributive Lattices, Hans Dobbertin

Seminar on Continuity in Semilattices

No abstract provided.

Scs 89: Continuity Concepts For Partially Ordered Sets, Marcel Erné

Seminar on Continuity in Semilattices

No abstract provided.

Scs 88: A Proof Of A Theorem Of B. B., Klaus Keimel

Seminar on Continuity in Semilattices

Source: University archive of the Technische Universität Darmstadt.

Scs 85: The Space Of Compact Convex Subsets Of A Locally Convex Topological Vector Space, Klaus Keimel

Seminar on Continuity in Semilattices

Source: University archive of the Technische Universität Darmstadt.

Scs 84: The Zariski Topology On Semilattices And Essential Extensions, Gerhard Gierz, Albert R. Stralka

Seminar on Continuity in Semilattices

No abstract provided.

Scs 83: Continuous Lattices, General Convexity Spaces, And A Fixed-Point Theorem, Klaus Keimel

Seminar on Continuity in Semilattices

Source: University archive of the Technische Universität Darmstadt.

Scs 82: Compactifying Distributive Lattices, Gerhard Gierz, Albert R. Stralka

Seminar on Continuity in Semilattices

No abstract provided.

Scs 81: Intrinsic Topologies On Semilattices Of Finite Breadth, Gerhard Gierz, Jimmie D. Lawson, Albert R. Stralka

Seminar on Continuity in Semilattices

No abstract provided.

Scs 80: Compact Ordered Spaces And Prime Wallman Compactifications: Summary Of Results, Oswald Wyler

Seminar on Continuity in Semilattices

Source: University archive of the Technische Universität Darmstadt.

Scs 79: The Lower Topology For Continuous Lattices Is A Monadic Functor, Oswald Wyler

Seminar on Continuity in Semilattices

No abstract provided.