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Lipase And Lipoxygenase Activity, Functionality, And Nutrient Losses In Rice Bran During Storage (Bulletin #870), Fatemeh Malekian, Ramu M. Rao, Witoon Prinyawiwatkul, Wayne E. Marshall, Marlene Windhauser, Mohammed Ahmedna Jan 2000

Lipase And Lipoxygenase Activity, Functionality, And Nutrient Losses In Rice Bran During Storage (Bulletin #870), Fatemeh Malekian, Ramu M. Rao, Witoon Prinyawiwatkul, Wayne E. Marshall, Marlene Windhauser, Mohammed Ahmedna

LSU AgCenter Bulletins

This bulletin includes information on the feasibility of using microwave heat to inactivate lipase and LOX, determine the optimum storage and packaging conditions with the fewest adverse effects on functionality, and to determine changes in functionality of rice bran as a result of heat treatment.

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Granular Activated Carbons From Agricultural By-Products: Preparation, Properties, And Application In Cane Sugar Refining (Bulletin #869), Mohamed Ahmedna, Wayne E. Marshall, Ramu M. Rao Jan 2000

Granular Activated Carbons From Agricultural By-Products: Preparation, Properties, And Application In Cane Sugar Refining (Bulletin #869), Mohamed Ahmedna, Wayne E. Marshall, Ramu M. Rao

LSU AgCenter Bulletins

The objectives of this investigation were to convert select Louisiana agricultural by-products to GAC and to characterize these carbons in terms of those physical (surface area, pore structure) and chemical (surface charge, functional groups) properties directly related to adsorption of raw sugar colorants.

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Interlayer Quasiparticle Transport In The Vortex State Of Josephson Coupled Superconductors, I. Vekhter, L. N. Bulaevskii, A. E. Koshelev, M. P. Maley Jan 2000

Interlayer Quasiparticle Transport In The Vortex State Of Josephson Coupled Superconductors, I. Vekhter, L. N. Bulaevskii, A. E. Koshelev, M. P. Maley

Faculty Publications

We calculate the dependence of the interlayer quasiparticle conductivity, σq, in a Josephson coupled d-wave superconductor on the magnetic field B∥c and the temperature T. We consider a clean superconductor with resonant impurity scattering and a dominant coherent interlayer tunneling. When pancake vortices in adjacent layers are weakly correlated, at low T the conductivity increases sharply with B over a field scale determined by the impurity scattering, before reaching an extended region of slow linear growth. At high T the conductivity initially decreases and then reaches the same linear regime. For correlated pancakes, σq increases much more strongly with the …

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Angle-Dependent Magnetothermal Conductivity In D-Wave Superconductors, I. Vekhter, P. J. Hirschfeld Jan 2000

Angle-Dependent Magnetothermal Conductivity In D-Wave Superconductors, I. Vekhter, P. J. Hirschfeld

Faculty Publications

We analyse the behavior of the thermal conductivity, κ(H), in the vortex state of a quasi-two-dimensional d-wave superconductor when both the heat current and the applied magnetic field are in the basal plane. At low temperature the effect of the field is accounted for in a semiclassical approximation, via a Doppler shift in the spectrum of the nodal quasiparticles. In that regime κ(H) exhibits twofold oscillations as a function of the angle between the direction of the field in the plane and the direction of the heat current, in agreement with experiment. © 2000 Elsevier Science B.V. All rights reserved.

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Thermal Conductivity In The Vortex State Of D-Wave Superconductors, I. Vekhter, A. Houghton Jan 2000

Thermal Conductivity In The Vortex State Of D-Wave Superconductors, I. Vekhter, A. Houghton

Faculty Publications

We present the results of a microscopic calculation of the longitudinal thermal conductivity of quasiparticles, κxx, in a 2D d-wave superconductor in the vortex state. Our approach takes into account both impurity scattering and a contribution to the thermal transport lifetime due to the scattering of quasiparticles off of vortices. We compare the results with the experimental measurements on high-Tc cuprates and organic superconductors. © 2000 Elsevier Science B.V. All rights reserved.

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Initial Operation Of The International Gravitational Event Collaboration, G. A. Prodi, I. S. Heng, Z. A. Allen, P. Astone, L. Baggio, M. Bassan, D. G. Blair, M. Bonaldi, P. Bonifazi, P. Carelli, M. Cerdonio, E. Coccia, L. Conti, C. Cosmelli, V. Crivelli Visconti, S. D'Antonio, V. Fafone, P. Falferi, P. Fortini, S. Frasca, W. O. Hamilton, E. N. Ivanovo, W. W. Johnson, C. R. Locke, A. Marini, V. Martinucci, E. Mauceli, M. P. Mchugh, R. Mezzena, Y. Minenkov, I. Modena, G. Modestino, A. Moleti Jan 2000

Initial Operation Of The International Gravitational Event Collaboration, G. A. Prodi, I. S. Heng, Z. A. Allen, P. Astone, L. Baggio, M. Bassan, D. G. Blair, M. Bonaldi, P. Bonifazi, P. Carelli, M. Cerdonio, E. Coccia, L. Conti, C. Cosmelli, V. Crivelli Visconti, S. D'Antonio, V. Fafone, P. Falferi, P. Fortini, S. Frasca, W. O. Hamilton, E. N. Ivanovo, W. W. Johnson, C. R. Locke, A. Marini, V. Martinucci, E. Mauceli, M. P. Mchugh, R. Mezzena, Y. Minenkov, I. Modena, G. Modestino, A. Moleti

Faculty Publications

The International Gravitational Event Collaboration, IGEC, is a coordinated effort by research groups operating gravitational wave detectors working towards the detection of millisecond bursts of gravitational waves. Here we report on the current IGEC resonant bar observatory, its data analysis procedures, the main properties of the first exchanged data set. Even though the available data set is not complete, in the years 1997 and 1998 up to four detectors were operating simultaneously. Preliminary results are mentioned.

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Charged Particle Production In The Pb+Pb System At 158 [Formula Presented] Per Nucleon, P. Deines-Jones, M. L. Cherry, A. Dabrowska, R. Holynski, D. Kudzia, B. S. Nilsen, A. Olszewski, M. Szarska, A. Trzupek, C. J. Waddington, J. P. Wefel, B. Wilczynska, H. Wilczynski, W. Wolter, B. Wosiek, K. Wozniak Jan 2000

Charged Particle Production In The Pb+Pb System At 158 [Formula Presented] Per Nucleon, P. Deines-Jones, M. L. Cherry, A. Dabrowska, R. Holynski, D. Kudzia, B. S. Nilsen, A. Olszewski, M. Szarska, A. Trzupek, C. J. Waddington, J. P. Wefel, B. Wilczynska, H. Wilczynski, W. Wolter, B. Wosiek, K. Wozniak

Faculty Publications

Charged particle multiplicities from high-multiplicity interactions of 158 GeV/nucleon Pb ions with Pb target nuclei have been measured using high-resolution nuclear emulsion chambers with sensitivity from the peak of the pseudorapidity distribution forward to [Formula Presented] The characteristics of these interactions have been compared to those of central interactions of 200 GeV/nucleon proton, O, and S beams on silver or bromine targets and to results from simulations using the FRITIOF 7.02 and VENUS 4.12 Monte Carlo event generators. Multiplicities scale with the number of wounded nucleons, although the multiplicities for Pb+Pb interactions in the central region are significantly lower than …

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Evidence For Changing Of Cosmic Ray Composition Between 1017 And 1018 Ev From Multicomponent Measurements, T. Abu-Zayyad, K. Belov, D. J. Bird, J. Boyer, Z. Cao, M. Catanese, G. F. Chen, R. W. Clay, C. E. Covault, J. W. Cronin, H. Y. Dai, B. R. Dawson, J. W. Elbert, B. E. Fick, L. F. Fortson, J. W. Fowler, K. G. Gibbs, M. A.K. Glasmacher, K. D. Green, Y. Ho, A. Haung, C. C. Jui, M. J. Kidd, D. B. Kieda, B. C. Knapp, S. Ko, C. G. Larsen, W. Lee, E. C. Loh, E. J. Mannel, J. Matthews, J. N. Matthews, B. J. Newport Jan 2000

Evidence For Changing Of Cosmic Ray Composition Between 1017 And 1018 Ev From Multicomponent Measurements, T. Abu-Zayyad, K. Belov, D. J. Bird, J. Boyer, Z. Cao, M. Catanese, G. F. Chen, R. W. Clay, C. E. Covault, J. W. Cronin, H. Y. Dai, B. R. Dawson, J. W. Elbert, B. E. Fick, L. F. Fortson, J. W. Fowler, K. G. Gibbs, M. A.K. Glasmacher, K. D. Green, Y. Ho, A. Haung, C. C. Jui, M. J. Kidd, D. B. Kieda, B. C. Knapp, S. Ko, C. G. Larsen, W. Lee, E. C. Loh, E. J. Mannel, J. Matthews, J. N. Matthews, B. J. Newport

Faculty Publications

The average mass composition of cosmic rays with primary energies between 1017 and 1018eV has been studied using a hybrid detector consisting of the High Resolution Fly's Eye (HiRes) prototype and the MIA muon array. Measurements have been made of the change in the depth of shower maximum and the muon density as a function of energy. The results show that the composition is changing from a heavy to lighter mix as the energy increases. © 2000 The American Physical Society.

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Effect Of Interfacial Tension On Propagating Polymerization Fronts, R. Texier-Picard, J. A. Pojman, Vit A. Volpert Jan 2000

Effect Of Interfacial Tension On Propagating Polymerization Fronts, R. Texier-Picard, J. A. Pojman, Vit A. Volpert

Faculty Publications

This paper is devoted to the investigation of polymerization fronts converting a liquid monomer into a liquid polymer. We assume that the monomer and the polymer are immiscible and study the influence of the interfacial tension on the front stability. The mathematical model consists of the reaction-diffusion equations coupled with the Navier-Stokes equations through the convection terms. The jump conditions at the interface take into account the interfacial tension. Simple physical arguments show that the same temperature distribution could not lead to Marangoni instability for a nonreacting system. We fulfill a linear stability analysis and show that interaction of the …

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Ligand Dissociation Accelerated By Spin State Change: Locating The Minimum Energy Crossing Point For Phosphine Exchange In Cpmocl2(Pr3)2 Complexes, Kevin M. Smith, Rinaldo Poli, Jeremy N. Harvey Jan 2000

Ligand Dissociation Accelerated By Spin State Change: Locating The Minimum Energy Crossing Point For Phosphine Exchange In Cpmocl2(Pr3)2 Complexes, Kevin M. Smith, Rinaldo Poli, Jeremy N. Harvey

Faculty Publications

The minimum energy crossing point between the doublet and quartet potential energy surfaces of CpMoCl2(PH3)2 is calculated to lie 4.8 kcal mol-1 lower in energy than the doublet dissociative intermediate CpMoCl2(PH3). Implications for the influence of spin state changes on the rates of organometallic reactions are discussed.

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Measuring Geologic Time On Mars, Peter T. Doran, Steven L. Forman, Neil C. Sturchio, Stephen M. Clifford, Dimitri A. Papanastassiou Jan 2000

Measuring Geologic Time On Mars, Peter T. Doran, Steven L. Forman, Neil C. Sturchio, Stephen M. Clifford, Dimitri A. Papanastassiou

Faculty Publications

No abstract provided.

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Comparability Of Resting Energy Expenditure In Nigerians And U.S. Blacks, Amy Luke, Charles N. Rotimi, Adebowale A. Adeyemo, Ramon A. Durazo-Arvizu, T. Elaine Prewitt, Lisa Moragne-Kayser, Regina Marders, Richard S. Cooper Jan 2000

Comparability Of Resting Energy Expenditure In Nigerians And U.S. Blacks, Amy Luke, Charles N. Rotimi, Adebowale A. Adeyemo, Ramon A. Durazo-Arvizu, T. Elaine Prewitt, Lisa Moragne-Kayser, Regina Marders, Richard S. Cooper

Faculty Publications

Objective: To determine the influence of environmental factors on resting energy expenditure (REE) and its relationship to adiposity in two populations of West African origin, Nigerians and U.S. blacks. Research Methods and Procedures: REE and body composition were measured in a cross-sectional sample of 89 Nigerian adults (39 women and 50 men), and 181 U.S. black adults (117 women and 65 men). Both groups represent randomly selected population samples. REE was measured by indirect calorimetry after an overnight fast in both sites using the same instrument. Body composition was estimated using bioelectrical impedance analysis (BIA) in 72 Nigerians and 156 …

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Correlates Of Blood Pressure In An Urban Zimbabwean Population And Comparison To Other Populations Of African Origin, Jacob Mufunda, L. J. Scott, J. Chifamba, J. Matenga, B. Sparks, R. Cooper, H. Sparks Jan 2000

Correlates Of Blood Pressure In An Urban Zimbabwean Population And Comparison To Other Populations Of African Origin, Jacob Mufunda, L. J. Scott, J. Chifamba, J. Matenga, B. Sparks, R. Cooper, H. Sparks

Faculty Publications

We have evaluated the relationship between systolic blood pressure (SBP) and age, body mass index (BMI), waist circumference, sodium to potassium ratio (Na/K), and tobacco use in an urban African population. We conducted a random, population-based, cross-sectional survey of people 25 years and older in Marondera, Zimbabwe, with over-sampling in older age groups (n = 775), using a method comparable to that used in International Collaborative Study on Hypertension in Blacks (ICSHIB). The age-adjusted prevalences of hypertension in Marondera (SBP ≥140/DBP ≥90/antihypertensive medication) were 30% for women and 21% for men. The average BMI was 26.3 kg/m2 for women and …

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Influence Of The I/D Polymorphism Of The Angiotensin-Converting Enzyme Gene On The Outcome Of Microalbuminuria In Essential Hypertension, Josep Redon, Felipe Javier Chaves, Youlian Liao, Jose Maria Pascual, Eduardo Rovira, Maria Eugenia Armengod, Richard S. Cooper Jan 2000

Influence Of The I/D Polymorphism Of The Angiotensin-Converting Enzyme Gene On The Outcome Of Microalbuminuria In Essential Hypertension, Josep Redon, Felipe Javier Chaves, Youlian Liao, Jose Maria Pascual, Eduardo Rovira, Maria Eugenia Armengod, Richard S. Cooper

Faculty Publications

The objective of the present study was to analyze the influence of the I/D polymorphism of the ACE gene on the outcome of microalbuminuria in essential hypertensive patients who were receiving antihypertensive treatment. One hundred thirty-six essential hypertensive patients who were period, patients received nonpharmacological treatment consisting of moderate salt restriction and a low-calorie diet they were obese, with or without a regimen of antihypertensive drugs based on β-blockers or ACE inhibitors. Hydrochlorothiazide was added when necessary to maintain the blood pressure goal of <135/85 mm Hg. At the beginning of the study and at yearly intervals, systolic and diastolic blood pressures (SBP and DBP, respectively), 24-hour urinary albumin excretion (UAE), renal function, and biochemical profile measurements were made. The insertion/deletion (I/D) polymorphism of the ACE gene was determined through the use of polymerase chain reaction. The variables used in the statistical analysis were the measurements at the start of the study and the increase or decrease detected during the follow-up, estimated as individual specific regression line slope values. At baseline, no differences in blood pressure or UAE values were observed among genotypes. Likewise, the genotype or allele frequency was not significantly different between normoalbuminurics and microalbuminurics. After the 3 treatment years, significant reductions in SBP, DBP, and UAE were found (SBP 151.6 ± 17.3 reduced to 137.2 ± 14.3 mm Hg, P < 0.001; DBP 96.6 ± 8.9 reduced to 84.5 ± 9.8 mm Hg, P < 0.001; UAE 36.7 ± 71.5 reduced to 28.3 ± 78.6 mg/24 h, P < 0.05). The slopes of these parameters over time did not differ significantly among genotypes. The slope of SBP was the main factor related to the slope of logUAE (P < 0.003). A significant positive correlation coefficient between the SBP and logUAE slopes was observed for the DD patients (r = 0.57, P < 0.0001) but was absent in patients carrying the I allele (II r = -0.03, P = NS; I/D r = 0.01, P=NS). Follow-up studies should be used to achieve a better understanding of the impact of candidate gene polymorphisms on the development of hypertension-induced organ damage. Assessment of the I/D polymorphism of the ACE gene may identify subjects who require a greatly lowered blood pressure to prevent organ damage and to reduce hypertension- associated complications and death.

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Lack Of Association Between A Biallelic Polymorphism In The Adducin Gene And Blood Pressure In Whites And African Americans, Nicholas J. Schork, Aravinda Chakravarti, Bonnie Thiel, Myriam Fornage, Howard J. Jacob, Robin Cai, Charles N. Rotimi, Richard S. Cooper, Alan B. Weder Jan 2000

Lack Of Association Between A Biallelic Polymorphism In The Adducin Gene And Blood Pressure In Whites And African Americans, Nicholas J. Schork, Aravinda Chakravarti, Bonnie Thiel, Myriam Fornage, Howard J. Jacob, Robin Cai, Charles N. Rotimi, Richard S. Cooper, Alan B. Weder

Faculty Publications

Population-based candidate gene association analyses are becoming increasingly popular as a result of a greater number of genes and gene polymorphisms having been identified for which some functional information is available. Because many biochemical and physiologic systems impact blood pressure regulation and hypertension susceptibility, many of these identified genes and polymorphisms are candidates for population-level association studies involving blood pressure levels or hypertension status. Recent studies have suggested that the α-adducin gene may harbor polymorphisms that influence blood pressure level. Therefore, we embarked on a study to test one such polymorphism in two large US samples: one from an urban …

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Localization Of A Small Genomic Region Associated With Elevated Ace, Xiaofeng Zhu, Colin A. Mckenzie, Terrence Forrester, Deborah A. Nickerson, Ulrich Broeckel, Heribert Schunkert, Angela Doering, Howard J. Jacob, Richard S. Cooper, Mark J. Rieder Jan 2000

Localization Of A Small Genomic Region Associated With Elevated Ace, Xiaofeng Zhu, Colin A. Mckenzie, Terrence Forrester, Deborah A. Nickerson, Ulrich Broeckel, Heribert Schunkert, Angela Doering, Howard J. Jacob, Richard S. Cooper, Mark J. Rieder

Faculty Publications

Defining the relationship between multiple polymorphisms in a small genomic region and an underlying quantitative trait locus (QTL) represents a major challenge in human genetics. Pedigree analyses have shown that angiotensin I-converting enzyme (ACE) levels are influenced by a QTL located within or close to the ACE gene and most likely resides in the 3' region of this locus. We genotyped seven polymorphisms spanning 13 kb in the 3' end of ACE in 159 Afro-Caribbean subjects to evaluate the linkage disequilibrium between these sites and to narrow the genomic region associated with an elevated ACE level using a cladistic analysis. …

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Machismo No More: Fetishistic Androgyny And The Destruction Of The Hemingway Hero, Karen Kay Goodlett Jan 2000

Machismo No More: Fetishistic Androgyny And The Destruction Of The Hemingway Hero, Karen Kay Goodlett

Honors Capstones

No abstract provided.

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The Severed Head In Celtic Literature And Beyond, Leah Concannon Jan 2000

The Severed Head In Celtic Literature And Beyond, Leah Concannon

Honors Capstones

No abstract provided.

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Does Baseline Depression Predict Tobacco Withdrawal Severity And Intervention Response?, Natasha L. Laurent Jan 2000

Does Baseline Depression Predict Tobacco Withdrawal Severity And Intervention Response?, Natasha L. Laurent

Honors Capstones

No abstract provided.

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Lsu General Catalog 2000-2001, Louisiana State University And Agricultural And Mechanical College Jan 2000

Lsu General Catalog 2000-2001, Louisiana State University And Agricultural And Mechanical College

LSU General Catalog

The LSU General Catalog describes all undergraduate and graduate departments and programs with degree requirements and courses offered for each one. The General Catalog includes information on registration and financial aid as well as academic services offered to all students.

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Effect Of Silicon Rate And Host Resistance On Blast, Scald, And Yield Of Upland Price, K. W. Seebold, L. E. Datnoff, F. J. Correa-Victoria, T. A. Kucharek, G. H. Snyder Jan 2000

Effect Of Silicon Rate And Host Resistance On Blast, Scald, And Yield Of Upland Price, K. W. Seebold, L. E. Datnoff, F. J. Correa-Victoria, T. A. Kucharek, G. H. Snyder

Faculty Publications

Blast-resistant, partially resistant, and susceptible cultivars of rice were planted in soil amended with Si at 0, 500, or 1,000 kg/ha at two locations in eastern Colombia to assess differential responses to leaf blast, neck blast, and leaf scald, and to examine the quantity and quality of grains harvested. Leaf and neck blast on partially resistant and susceptible cultivars were reduced by Si as the rate of Si was increased. Depending on the location, the level of severity of leaf and neck blast on partially resistant cultivars, when fertilized with Si at 500 or 1,000 kg/ha, was lowered to that …

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Standing On Principle: The Death Of Vernon Dahmer And The Destruction Of The White Knights Of The Ku Klux Klan Of Mississippi., Kevin Ethridge Stuart Jan 2000

Standing On Principle: The Death Of Vernon Dahmer And The Destruction Of The White Knights Of The Ku Klux Klan Of Mississippi., Kevin Ethridge Stuart

Honors Capstones

No abstract provided.

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Egg-Derived Proteases As A Block To Polyspermy In The Eggs Of The Freshwater Mussel, Dreissena Polymorpha, Alicia Kay Smith Wysong Jan 2000

Egg-Derived Proteases As A Block To Polyspermy In The Eggs Of The Freshwater Mussel, Dreissena Polymorpha, Alicia Kay Smith Wysong

Honors Capstones

No abstract provided.

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Gumbo Yearbook, Class Of 2000, Louisiana State University And Agricultural And Mechanical College Jan 2000

Gumbo Yearbook, Class Of 2000, Louisiana State University And Agricultural And Mechanical College

Gumbo Yearbook

The Gumbo yearbook chronicles the entire academic year at LSU. In words and especially photos, the Gumbo shows the people, places, and events that make each year unique. In addition to formal portraits of schools and departments, the book contains hundreds of snapshots of students with their friends and dozens of pages showcasing organizations.

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Bill Clinton's Operational Code: Assessing Source Material Bias, Mark Schafer, Scott Crichlow Jan 2000

Bill Clinton's Operational Code: Assessing Source Material Bias, Mark Schafer, Scott Crichlow

Faculty Publications

This paper considers Bill Clinton's operational code as reflected in prepared speeches and spontaneous remarks. Differences between the two types of verbal material, their respective differences over time, and their respective variation after key intervening political events were subjected to analysis of variance as well as descriptive analyses. The results suggest that measurements based on spontaneous comments are preferable, particularly in providing sensitive measures of personal predispositions.

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Origin, Distribution, And Degradation Of Sedimentary Organic Matter In A Modern Tropical Deltaic System (Mahakam Delta, Borneo, Indonesia)., Martine Joelle Hardy Jan 2000

Origin, Distribution, And Degradation Of Sedimentary Organic Matter In A Modern Tropical Deltaic System (Mahakam Delta, Borneo, Indonesia)., Martine Joelle Hardy

LSU Historical Dissertations and Theses

The modern, tidally influenced Mahakam Delta progrades onto the eastern Borneo continental shelf. The processes controlling the occurrence and preservation of sedimentary organic matter in a tropical deltaic setting are unknown. Understanding these processes has direct application in explaining the unusual origin of oil and gas generated from terrestrial plant debris (rather than typically from algal remains) in many tropical Miocene basins. Water salinity and dissolved oxygen, and sediment pH, Eh, and TOC were measured. Organic matter was extracted by acid digestion from 200 surface sediment samples collected from the Mahakam River, the delta, and the continental shelf. Seventeen types …

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A Canonical Description Of The Plancherel Measure For A General Two-Step Free Nilpotent Lie Group., Chin-Te Chu Jan 2000

A Canonical Description Of The Plancherel Measure For A General Two-Step Free Nilpotent Lie Group., Chin-Te Chu

LSU Historical Dissertations and Theses

In this work on g=Fn,2 , free 2-step nilpotent Lie algebra on n generators, we use the group of automorphisms to give a basis-free description of the Fourier Inversion Formula, thereby generalizing and strengthening an example discussed by Corwin & Greenleaf. In the Introduction we discuss Example 4.3.14 in Corwin & Greenleaf's book. It demonstrates how different bases of F3,2 lead to different inversion formulas. But the third "more" invariant formula describes Plancherel measure on a support expressed in terms of rotations, dilations, and translations. Actually it is not canonical since it still depends on choices of bases for F3,2 …

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On Stochastic Integration For White Noise Distribution Theory., Said Kalema Ngobi Jan 2000

On Stochastic Integration For White Noise Distribution Theory., Said Kalema Ngobi

LSU Historical Dissertations and Theses

This thesis consists of two parts, each part concentrating on a different problem from the theory of Stochastic Integration. Chapter 1 contains the introduction explaining the results in this dissertation in general terms. We use the infinite dimensional space S'R endowed with the gaussian measure mu. The Hilbert space ( L2) is defined as (L2) (L2) ≡ L2( S'R , mu) and our results are based on the Gel'fand triple ( S )beta ⊂ (L2) ⊂ S* b . The necessary preliminary background in white noise analysis are well elaborated in Chapter 2. In Chapter 3 we present a generalization …

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A Class Of Stable, Globally Noniterative, Nonoverlapping Domain Decomposition Algorithms For The Simulation Of Parabolic Evolutionary Systems., Yu Zhuang Jan 2000

A Class Of Stable, Globally Noniterative, Nonoverlapping Domain Decomposition Algorithms For The Simulation Of Parabolic Evolutionary Systems., Yu Zhuang

LSU Historical Dissertations and Theses

Parabolic systems are governed by time dependent partial differential equations. To obtain a high simulation quality that captures important features of a parabolic system requires solving the governing equation to an adequate accuracy, which necessitates a large sampling size in the spatial and temporal dimensions, and hence a large amount of simulation data and high computing cost. Domain decomposition is an effective method of divide-and-conquer paradigm that divides the problem domain into several subdomains, reducing the original problem into several smaller interdependent problems which can be solved in parallel. In this dissertation, we propose a class of stabilized explicit-implicit time …

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Lie Semigroups With Triple Decompositions, Jimmie Lawson, Yongdo Lim Jan 2000

Lie Semigroups With Triple Decompositions, Jimmie Lawson, Yongdo Lim

Faculty Publications

In this paper we establish that the causal order determined by an Ol'shanski semigroup on the corresponding homogeneous space is globally hyperbolic. Using this fact, we present sufficient conditions for a special class of Lie semigroups to admit a canonical "triple decomposition," namely those for which the Lie algebra is of Cayley type. This theory applies in particular to semigroups which are naturally associated to euclidean Jordan algebras as the semigroup of compressions of the symmetric cone of the algebra.

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