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Information Capacity Of The Carbohydrate Code, Roger A. Laine Jan 1997

Information Capacity Of The Carbohydrate Code, Roger A. Laine

Faculty Publications

Capacity for information in biological molecules is traditionally thought to reside in the primary sequence of proteins and RNA, recorded in the DNA. With the exception of some RNA molecules, proteins, if not structural, carry their information in binding sites for substrates of reactions, or in binding sites for control molecules. Some proteins bind to complex carbohydrates in a carbohydrate-specific fashion, including enzymes, lectins and antibodies. These carbohydrates, assembled by sequential glycosyl transferases, also carry biological information, the other side of which is a binding protein that recognizes a specific sugar monosaccharides, sequence, anomerity, linkage, ring size, branching and substitution. …

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The Prevalence Of Hypertension In Seven Populations Of West African Origin, Richard Cooper, Charles Rotimi, Susan Ataman, Daniel Mcgee, Babatunde Osotimehin, Solomon Kadiri, Walinjom Muna, Samuel Kingue, Henry Fraser, Terrence Forrester, Franklyn Bennett, Rainford Wilks Jan 1997

The Prevalence Of Hypertension In Seven Populations Of West African Origin, Richard Cooper, Charles Rotimi, Susan Ataman, Daniel Mcgee, Babatunde Osotimehin, Solomon Kadiri, Walinjom Muna, Samuel Kingue, Henry Fraser, Terrence Forrester, Franklyn Bennett, Rainford Wilks

Faculty Publications

Objectives. This study was undertaken to describe the distribution of blood pressures, hypertension prevalence, and associated risk factors among seven populations of West African origin. Methods. The rates of hypertension in West Africa (Nigeria and Cameroon), the Caribbean (Jamaica, St. Lucia, Barbados), and the United States (metropolitan Chicago, Illinois) were compared on the basis of a highly standardized collaborative protocol. After researchers were given central training in survey methods, population-based samples of 800 to 2500 adults over the age of 25 were examined in seven sites, yielding a total sample of 10 014. Results. A consistent gradient of hypertension prevalence …

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Louisiana Agriculture Magazine, Winter 1997, Lsu Agricultural Experiment Station Jan 1997

Louisiana Agriculture Magazine, Winter 1997, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

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Ab Initio Elasticity Of Three High-Pressure Polymorphs Of Silica, Bijaya B. Karki, Lars Stixrude, Jason Crain Jan 1997

Ab Initio Elasticity Of Three High-Pressure Polymorphs Of Silica, Bijaya B. Karki, Lars Stixrude, Jason Crain

Faculty Publications

Full elastic constant tensors of three high-pressure polymorphs of silica: stishovite, CaCl -type and columbite-type (α-PbO structure); are determined at lower mantle pressures from first-principles using the plane wave pseudopotential method within the local density approximation. The calculated zero pressure athermal elastic moduli are within a few percent of the experiments. We find that the elastic properties of silica are strongly pressure dependent. The shear wave velocity decreases rapidly (by 60 %) and the anisotropy increases rapidly (by a factor of five) between 40 and 47 GPa prior to the transition from stishovite to the CaCl structure at 47 GPa. …

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Lsu General Catalog 1997-1998, Louisiana State University And Agricultural And Mechanical College Jan 1997

Lsu General Catalog 1997-1998, 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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Three-Species Monomer-Monomer Model: A Mean-Field Analysis And Monte Carlo Study, Kevin E. Bassler, Dana A. Browne Jan 1997

Three-Species Monomer-Monomer Model: A Mean-Field Analysis And Monte Carlo Study, Kevin E. Bassler, Dana A. Browne

Faculty Publications

We study the phase diagram and critical behavior of a one-dimensional three-species monomer-monomer catalytic surface reaction model. Static Monte Carlo simulations are used to roughly map out the phase diagram consisting of a reactive steady state bordered by three equivalent unreactive phases where the surface is saturated with one monomer species. The transitions from the reactive phase are all continuous, while the transitions between poisoned phases are first order. Of particular interest are the bicritical points where the reactive phase simultaneously meets two poisoned phases. A mean-field cluster analysis fails to predict all of the qualitative features of the phase …

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Mean-Field Analysis And Monte Carlo Study Of An Interacting Two-Species Reaction Model, K. S. Brown, K. E. Bassler, D. A. Browne Jan 1997

Mean-Field Analysis And Monte Carlo Study Of An Interacting Two-Species Reaction Model, K. S. Brown, K. E. Bassler, D. A. Browne

Faculty Publications

We study the phase diagram and critical behavior of an interacting one-dimensional two-species monomer-monomer catalytic surface reaction model with a reactive phase as well as two equivalent adsorbing phases where one of the species saturates the system. The model depends on two parameters: the relative adsorption rates of the two species and a repulsive interaction between like neighbors. A mean-field analysis including correlations up to triplets of sites fails to reproduce the phase diagram found by Monte Carlo simulations. The three phases coexist at a bicritical point whose critical behavior is described by the even branching annihilating random-walk universality class. …

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Does The Jones Polynomial Detect Unknottedness?, Oliver T. Dasbach, Stefan Hougardy Jan 1997

Does The Jones Polynomial Detect Unknottedness?, Oliver T. Dasbach, Stefan Hougardy

Faculty Publications

There have been many attempts to settle the question whether there exist nontrivial knots with trivial Jonespolynomial. In this paper we show that such a knot must have crossing number at least 18. Furthermore we give the number of prime alternating knots and an upper bound for the number of prime knots up to 17 crossings. We also compute the number of different HOMFLY, Jonesand Alexander polynomials for knots up to 15 crossings. © A K Peters, Ltd.

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First On-Line Results For As And F Beams From Hribf Target/Ion Sources, H. K. Carter, J. Kormicki, D. W. Stracener, J. B. Breitenbach, J. C. Blackmon, M. S. Smith, D. W. Bardayan Jan 1997

First On-Line Results For As And F Beams From Hribf Target/Ion Sources, H. K. Carter, J. Kormicki, D. W. Stracener, J. B. Breitenbach, J. C. Blackmon, M. S. Smith, D. W. Bardayan

Faculty Publications

The first on-line tests of the ion sources to provide radioactive ion beams of 69,70As and 17,18F for the Holifield Radioactive Ion Beam Facility have been performed using the UNISOR facility at HRIBF. For 70As the measured efficiency is 0.8 ± 0.3% with a hold-up time of 3.6 ± 0.3 h as measured with 72As at a target temperature of 1270°C. For 17F the efficiency for Al17F is 0.0024 ± 0.0008% with a hold-up time of 16.4 ± 0.8 m as measured with Al18F at a target temperature of 1470°C.

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The Shortest Way To Heaven? Moll Flanders' Prepentance Reconsidered, Michael F. Suarez S.J. Jan 1997

The Shortest Way To Heaven? Moll Flanders' Prepentance Reconsidered, Michael F. Suarez S.J.

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

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The Author As Ghost In The Eighteenth Century, Laura J. Rosenthal Jan 1997

The Author As Ghost In The Eighteenth Century, Laura J. Rosenthal

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

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The Transmission Of German Literature And Dissenting Voices In British Culture Thomas Holcroft And The Godwin Circle, Gregory Maertz Jan 1997

The Transmission Of German Literature And Dissenting Voices In British Culture Thomas Holcroft And The Godwin Circle, Gregory Maertz

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

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Kicking The Emperor Some Problems Of Restoration Parallel History, David Gunto Jan 1997

Kicking The Emperor Some Problems Of Restoration Parallel History, David Gunto

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

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Editing Minor Writers The Case Of Laetitia Pilkinton And Mary Barber, A. C. Elias Jr. Jan 1997

Editing Minor Writers The Case Of Laetitia Pilkinton And Mary Barber, A. C. Elias Jr.

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

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Defoe And Cantermir Eighteenth-Century Explorers, West And East, Mihaela Irimia Jan 1997

Defoe And Cantermir Eighteenth-Century Explorers, West And East, Mihaela Irimia

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

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"New-Nothings," Neologisms, And The Recoinage Of 1696, Sandra Sherman Jan 1997

"New-Nothings," Neologisms, And The Recoinage Of 1696, Sandra Sherman

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

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Prophecy And Sensibility Mary Wollstonecraft In Frankenstein, Syndy M. Conger Jan 1997

Prophecy And Sensibility Mary Wollstonecraft In Frankenstein, Syndy M. Conger

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

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Book Review Corner, Anna Battigelli Jan 1997

Book Review Corner, Anna Battigelli

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

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Edito's Choice Underapplauded Books, Malcolm Jack Jan 1997

Edito's Choice Underapplauded Books, Malcolm Jack

1650-1850: Ideas, Aesthetics, and Inquiries in the Early Modern Era

No abstract provided.

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Collision Of Boosted Black Holes, John Baker, Andrew Abrahams, Peter Anninos, Steve Brandt, Richard Price, Jorge Pullin, Edward Seidel Jan 1997

Collision Of Boosted Black Holes, John Baker, Andrew Abrahams, Peter Anninos, Steve Brandt, Richard Price, Jorge Pullin, Edward Seidel

Faculty Publications

We study the radiation from a collision of black holes with equal and opposite linear momenta. Results are presented from a full numerical relativity treatment and are compared with the results from a “close-slow” approximation. The agreement is remarkable, and suggests several insights about the generation of gravitational radiation in black hole collisions. © 1997 The American Physical Society.

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Lattice Knot Theory And Quantum Gravity In The Loop Representation, Hugo Fort, Rodolfo Gambini, Jorge Pullin Jan 1997

Lattice Knot Theory And Quantum Gravity In The Loop Representation, Hugo Fort, Rodolfo Gambini, Jorge Pullin

Faculty Publications

We present an implementation of the loop representation of quantum gravity on a square lattice. Instead of starting from a classical lattice theory, quantizing, and introducing loops, we proceed backwards, setting up constraints in the lattice loop representation and showing that they have appropriate (singular) continuum limits and algebras. The diffeomorphism constraint reproduces the classical algebra in the continuum and has as solutions lattice analogues of usual knot invariants. We discuss some of the invariants stemming from Chern-Simons theory in the lattice context, including the issue of framing. We also present a regularization of the Hamiltonian constraint. We show that …

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Transients Among Binaries With Evolved Low-Mass Companions, A. R. King, J. Frank, U. Kolb, H. Ritter Jan 1997

Transients Among Binaries With Evolved Low-Mass Companions, A. R. King, J. Frank, U. Kolb, H. Ritter

Faculty Publications

We show that stable disk accretion should be very rare among low-mass X-ray binaries (LMXBs) and cataclysmic variables whose evolution is driven by the nuclear expansion of the secondary star on the first giant branch. Stable accretion is confined to neutron star systems in which the secondary is still relatively massive and to some supersoft white dwarf accretors. All other systems, including all black hole systems, appear as soft X-ray transients or dwarf novae. All long-period neutron star systems become transient well before most of the envelope mass is transferred and remain transient until envelope exhaustion. This complicates attempts to …

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Quick Computation Of Spatial Autoregressive Estimators, R. Kelley Pace, Ronald Barry Jan 1997

Quick Computation Of Spatial Autoregressive Estimators, R. Kelley Pace, Ronald Barry

Faculty Publications

Spatial estimators usually require the manipulation of n2 relations among n observations and use operations such as determinants, eigenvalues, and inverses whose operation counts grow at a rate proportional to n3. This paper provides ways to quickly compute estimates when the dependent variable follows a spatial autoregressive process, which by appropriate specification of the independent variables can subsume the case when the errors follow a spatial autoregressive process. Since only nearby observations tend to affect a given observation, most observations have no effect and hence the spatial weight matrix becomes sparse. By exploiting sparsity and rearranging computations, …

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Development Of An Analysis System For Discontinuities In Rigid Airfield Pavements., Michael Ivan Hammons Jan 1997

Development Of An Analysis System For Discontinuities In Rigid Airfield Pavements., Michael Ivan Hammons

LSU Historical Dissertations and Theses

The response of the rigid pavement slab-joint-base structural system is complex, and accurately predicting the response of such a system requires a significant degree of analytical sophistication. The research reported in this dissertation has defined some essential features required to adequately model the system and has demonstrated a technique to develop a comprehensive three-dimensional (3D) finite element model of the rigid pavement slab-joint-foundation structural system. Analysis of experimental data from the 1950s confirms that explicit modeling of dowels is not required to model the structural response of the system. Additional experimental data gathered as a part of this research indicates …

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Everyday Problem-Solving Goals: Contributions Of Age And Individual Differences., Lisa Eileen Norris Jan 1997

Everyday Problem-Solving Goals: Contributions Of Age And Individual Differences., Lisa Eileen Norris

LSU Historical Dissertations and Theses

The purpose of the present research was to examine the contribution of age and individual differences to everyday problem solving, focusing on goal preference. Three pilot studies were conducted to generate interpersonal problem solving goals that were high in emotional arousal and low in emotional arousal. In the Experiment Proper, 40 young and 40 older adults were given 6 vignettes depicting everyday problems. Subjects rated their preference of both high and low experimenter-provided goals. Subjects then completed 4 individual difference questionnaires that measured stimulation intensity, affect intensity, and emotional control. Results showed that both younger and older adults endorsed more …

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An Investigation Of The Motives In Going-Private Transactions: The Case Of Re-Lbos., Arman Kosedag Jan 1997

An Investigation Of The Motives In Going-Private Transactions: The Case Of Re-Lbos., Arman Kosedag

LSU Historical Dissertations and Theses

The commonly understood and traditional forms of termination for a public firm are the takeover and bankruptcy. "Going private" is a new and interesting third alternative. Once the "going public" option--a significant number of observed reverse leveraged buyout (LBO) cases--is taken into account, however, the fundamental difference between this new alternative and traditional ways becomes apparent. Even more fascinating than the "public-to-private private-to-public" move is the fact that some companies go private again. This dissertation examines the phenomenon of re-LBOs; that is, the practice of going private via management buyout, then reobtaining public status through a new initial public offering, …

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Americans And German Youth In Nuremberg, 1945-1956: A Study In Politics And Culture., Harald Thomas Oskar Leder Jan 1997

Americans And German Youth In Nuremberg, 1945-1956: A Study In Politics And Culture., Harald Thomas Oskar Leder

LSU Historical Dissertations and Theses

While American policy makers needed three years after World War II to recognize the importance of re-educating German youth and to develop a consistent policy, a look at Nuremberg reveals that American representatives in the field started positive and constructive programs immediately after the war. American soldiers ignored non-fraternization, the Army became heavily involved in helping German communities survive, while the Youth Section of the Office of Military Government was the first to focus on persuasion instead of coercion in its re-education efforts. It designed long range programs to introduce young Germans to a democratic culture. Official American policy simply …

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Development Of A Prototype Computer-Assisted Well Control System For Deep Ocean Drilling Environments., Orville Allen Kelly Jan 1997

Development Of A Prototype Computer-Assisted Well Control System For Deep Ocean Drilling Environments., Orville Allen Kelly

LSU Historical Dissertations and Theses

An advanced prototype computer-assisted deep water drilling well control system was developed using process control technology. The goal of the system was to improve rig safety by reducing the potential for surface and underground blowouts through providing enhanced bottom hole and casing seat pressure control during the well kill process. The system developed is capable of full computer control of the fluid pump and drilling choke control functions during normal well control operations. The system provides computer-assistance in collecting and curve fitting slow circulation rate pump pressure data, in developing a well kill program (kill sheet), and in detecting anomalies …

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Reduction And Management Of Risks Associated With Aflatoxin And Fumonisin Contamination In Corn., Socrates Trujillo Jan 1997

Reduction And Management Of Risks Associated With Aflatoxin And Fumonisin Contamination In Corn., Socrates Trujillo

LSU Historical Dissertations and Theses

Aflatoxins and fumonisins, secondary mold metabolites, occur naturally as co-contaminants in corn. Health and economic risks associated with this contamination of food and feed have been the focus of much research worldwide. Research programs resulting from the discovery of aflatoxins in the 1960's has been used to guide study programs for fumonisins. The establishment of food safety programs, including mycotoxin decontamination procedures, must be evaluated for further application. The evaluation of selected procedures which reduce the risks associated with the contamination of these mycotoxins in food utilized for human and animal consumption was the focus of this study. This study …

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Errand Into The Wilderness And America: An Analysis Of The Effects Of Puritan Symbols On The Perceived Purpose Of Education In America., E. Douglas Mcknight Jan 1997

Errand Into The Wilderness And America: An Analysis Of The Effects Of Puritan Symbols On The Perceived Purpose Of Education In America., E. Douglas Mcknight

LSU Historical Dissertations and Theses

Present day America is perceived as immersed in a moral crisis due to certain cultural conditions; that national identity has fractured, resulting in a pervading sense of uncertainty and anxiety about the future; that public schools, as institutions charged with preserving the symbols of national identity and a morality that is the concrete expression of those symbols, have failed and must be reformed; and finally, that only through "schooling" can America be saved from this current cultural crisis. This rhetorical trajectory has a history that extends back to the Puritans who settled in America during the early seventeenth century and …

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