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Faculty Publications

1990

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Power Law Exponents For A Spreading Front And Growing Interface In An Irreversible Wetting, Evan Willett, Ras B. Pandey Dec 1990

Power Law Exponents For A Spreading Front And Growing Interface In An Irreversible Wetting, Evan Willett, Ras B. Pandey

Faculty Publications

Using computer simulations, the power-law behavior of the interface growth of a spreading fluid is studied in a two-dimensional lattice model. The interface width exponent ν and the dynamical exponent k for the evolution of the front are consistent with their dynamical scaling relation. The magnitude of these exponents seems to depend upon the nature of the substrate and the concentration of the carriers of the wetting fluid.


In Situ Infrared Evidence For The Electrochemical Incorporation Of Hydrogen Into Si And Ge, K. C. Mandal, F. Ozanam, J.-N. Chazalviel Dec 1990

In Situ Infrared Evidence For The Electrochemical Incorporation Of Hydrogen Into Si And Ge, K. C. Mandal, F. Ozanam, J.-N. Chazalviel

Faculty Publications

No abstract provided.


Formation Of Methylmercaptan And Dimethylsulfide From Methoxylated Aromatic Compounds In Anoxic Marine And Fresh Water Sediments, Kai Finster, Gary M. King, Friedhelm Bak Dec 1990

Formation Of Methylmercaptan And Dimethylsulfide From Methoxylated Aromatic Compounds In Anoxic Marine And Fresh Water Sediments, Kai Finster, Gary M. King, Friedhelm Bak

Faculty Publications

Anaerobic formation of dimethylsulfide (DMS) and methylmercaptan (MSH) in anoxic sulfide-containing slurries from marine and fresh water sediments was stimulated by addition of syringate (4-hydroxy,3,5,-dimethoxybenzoate) and 3,4,5,-trimethoxybenzoate. The release of DMS and MSH occurred during the consumption of the aromatic monomers and ceased after their depletion. DMS was the dominant methylated sulfur compound in fresh water sediments, in contrast to marine sediments where MSH was predominant. No production of volatile organic sulfur compounds was observed in slurries containing gallate (3,4,5,-trihydroxybenzoate) or in autoclaved controled. About 50-65% of the methoxy carbon could be accounted for by peak accumulation of DMS and …


Structure And Variability Of Recently Inserted Alu Family Members, Mark A. Batzer, Gail E. Kilroy, Pamela E. Richard, Tamim H. Shaikh, Trent D. Desselle, Carol L. Hoppens, Prescott L. Deininger Dec 1990

Structure And Variability Of Recently Inserted Alu Family Members, Mark A. Batzer, Gail E. Kilroy, Pamela E. Richard, Tamim H. Shaikh, Trent D. Desselle, Carol L. Hoppens, Prescott L. Deininger

Faculty Publications

The HS subfamily of Alu sequences is comprised of a group of nearly identical members. Individual subfamily members share 97.7% nucleotide identity with each other and 98.9% nucleotide identity with the HS consensus sequence. Individual subfamily members are on the average 2.8 million years old, and were probably derived from a single source 'master' gene sometime after the human/great ape divergence. The recent Alu family member insertions provide a better image of the structure of Alu retroposons before they have had the opportunity to change significantly. All of the HS subfamily members are flanked by perfect direct repeats as a …


Genevan Scholars In Intellectual Europe: From The 17th Century To The Middle Of The 19th Century - French, Theodore S. Feldman Dec 1990

Genevan Scholars In Intellectual Europe: From The 17th Century To The Middle Of The 19th Century - French, Theodore S. Feldman

Faculty Publications

No abstract provided.


The Eagle And The Lion: The Tragedy Of American-Iranian Relations, By James A. Bill, Shahrough Akhavi Dec 1990

The Eagle And The Lion: The Tragedy Of American-Iranian Relations, By James A. Bill, Shahrough Akhavi

Faculty Publications

No abstract provided.


Epicomplete Archimedean L-Groups Via A Localic Yosida Theorem, James Madden, J. Vermeer Nov 1990

Epicomplete Archimedean L-Groups Via A Localic Yosida Theorem, James Madden, J. Vermeer

Faculty Publications

No abstract provided.


Purification And Characterization Of A Dna Polymerase From The Cyanobacterium Anacystis Nidulans R2, Hsiu-Jin Lin, Gordon C. Cannon, Sabine Heinhorst Nov 1990

Purification And Characterization Of A Dna Polymerase From The Cyanobacterium Anacystis Nidulans R2, Hsiu-Jin Lin, Gordon C. Cannon, Sabine Heinhorst

Faculty Publications

A DNA polymerase has been highly purified from Anacystis nidulans R2. Electrophoretic analysis in sodium dodecyl sulfate-polyacrylamide gels revealed that the final fraction contains three bands of Mr 107,000, 93,000, and 51,000, respectively. Analysis of purified DNA polymerase activity in situ indicates that of the three polypeptides the Mr 107,000 species has the catalytic activities. The native molecular weight of the enzyme was estimated by glycerol gradient sedimentation to be 100,000. The enzyme has an absolute requirement for a divalent cation. Mg2+ can be replaced with Mn2+, but the DNA polymerase is less active. Potassium …


Exercise Tolerance And Alcohol Intake: Blood Pressure Relation, G. Harley Hartung, Harold W. Kohl Iii, Steven N. Blair, Steven J. Lawrence, Ronald B. Harrist Nov 1990

Exercise Tolerance And Alcohol Intake: Blood Pressure Relation, G. Harley Hartung, Harold W. Kohl Iii, Steven N. Blair, Steven J. Lawrence, Ronald B. Harrist

Faculty Publications

The relations of systolic and diastolic blood pressures to alcohol intake and exercise tolerance levels in 15,612 men and 3,855 women were investigated. Alcohol intake was assessed by questionnaire and stratified into seven levels for men and six for women according to the ounces of ethanol consumed per week. Exercise tolerance was determined by maximal treadmill exercise testing and was categorized into six age-specific by sex-specific levels. Both systolic and diastolic blood pressure were significantly related to both alcohol intake and exercise tolerance levels in both men and women. These relations, which were positive for alcohol and negative for exercise …


A Rational Choice Theory Of Supreme Court Statutory Decisions With Applications To The State Farm And Grove City Cases, Rafael Gely, Pablo T. Spiller Oct 1990

A Rational Choice Theory Of Supreme Court Statutory Decisions With Applications To The State Farm And Grove City Cases, Rafael Gely, Pablo T. Spiller

Faculty Publications

In this article we follow the recent developments of the modern theory of administrative agencies, by developing a rational choice theory of the Supreme Court. Our framework combines two of the main characteristics of this literature: namely, the rational choice modeling strategy with the notion that institutions matter in the design of public policy. We differ basically by modeling the Supreme Court as a self-interested, ideologically motivated institution, making its decisions subject not to the traditional legal rules of precedent, but to the constraints arising from the political interests of other institutions of government-namely, Congress and the President.


The Military Rules Of Evidence: Origins And Judicial Implementation, Fredric I. Lederer Oct 1990

The Military Rules Of Evidence: Origins And Judicial Implementation, Fredric I. Lederer

Faculty Publications

No abstract provided.


Degree Of Adaptive Approximation, Ronald A. Devore, Ming Yu Xiang Oct 1990

Degree Of Adaptive Approximation, Ronald A. Devore, Ming Yu Xiang

Faculty Publications

We obtain various estimates for the error in adaptive approximation and also establish a relationship between adaptive approximation and free-knot spline approximation.


Impacts On California Agriculture Of A Ban On Rice Straw Burning, B. Gardner Delworth, Richard E. Howitt, Charles Goodman Oct 1990

Impacts On California Agriculture Of A Ban On Rice Straw Burning, B. Gardner Delworth, Richard E. Howitt, Charles Goodman

Faculty Publications

The burning of agricultural residues, particularly rice straw, has long been an issue of public concern in California's Sacramento Valley. Especially during days of autumn temperature inversions, the smoke in the atmosphere from burning is regarded by some as a serious health hazard and by nearly all residents as a public nuisance. Strong pressures have resulted in stringent regulations over agricultural burning, but a growing number of voices advocate a strict prohibition on burning. The prospect of a burning ban is worrisome to rice growers since burning is not only the most cost-effective way of disposing of the straw, but …


The Lmpact Of Rising Costs Of Serials And Monographs On Library Services And Programs., Robert V. Williams Oct 1990

The Lmpact Of Rising Costs Of Serials And Monographs On Library Services And Programs., Robert V. Williams

Faculty Publications

No abstract provided.


Products Liability: Principles Of Justice For The 21st Century, David G. Owen Oct 1990

Products Liability: Principles Of Justice For The 21st Century, David G. Owen

Faculty Publications

No abstract provided.


The Effect Of Externally Applied Oscillating Electric Fields On The L=1 And L=2 Diocotron Modes In Non-Neutral Plasmas, Ross L. Spencer Oct 1990

The Effect Of Externally Applied Oscillating Electric Fields On The L=1 And L=2 Diocotron Modes In Non-Neutral Plasmas, Ross L. Spencer

Faculty Publications

A high-frequency oscillating electric field can change the properties of diocotron modes in non-neutral plasmas. The effect depends crucially on the azimuthal mode number, m, of the applied field. For m=0, plus or minus 1 there is no effect, and for applied standing waves there is also no effect. But if the applied field has the form of a traveling wave with the norm of m greater than or equal to 2, the frequency of stable diocotron modes can be modified and for the norm of m greater than or equal to 3, the l=2 instability of hollow density profiles …


Computer Simulation Study Of Conductivity In A 2-Dimensional Binary Fluid Mixture, Ras B. Pandey Sep 1990

Computer Simulation Study Of Conductivity In A 2-Dimensional Binary Fluid Mixture, Ras B. Pandey

Faculty Publications

A computer-simulation model is introduced to study the transport properties of a binary fluid mixture in which the constituents of one fluid (the tracer particles) carry charges in a linear charge-density gradient in the background charge of the second fluid. In the steady-state equilibrium, an effective conductivity σc(p,r) is estimated as a function of the carrier concentration p and the range of interactions r. The conductivity is observed to vary nonmonotonically with the concentration p, and it exhibits a maximum at a characteristic value pc. The conductivity decreases when the …


Relationships Between Wetland Fragmentation And Recent Hydrologic Changes In A Deltaic Coast, R. Eugene Turner, Yeleswarapu S. Rao Sep 1990

Relationships Between Wetland Fragmentation And Recent Hydrologic Changes In A Deltaic Coast, R. Eugene Turner, Yeleswarapu S. Rao

Faculty Publications

Patterns in coastal wetland loss in the northern Gulf of Mexico were examined using aerial imagery from 1955–56 and 1978. Five qualitative types of wetland changes are evident: (1) spoil bank-parallel pond formation, (2) pond formation with apparent random distribution for the smallest ponds, but very clumped distribution for larger ponds, (3) semi- or complete impoundment resulting in open water formation, (4) cutting off of stream channels upstream of where a spoil bank crosses a natural channel, and (5) erosion at the land-water interface. Only pondsinterval, and it is clear that wetland breakup, not erosion at the pond-lake edge, is …


Politics, Innocence And The Limits Of Goodness By Peter Johnson, Daniel R. Sabia Sep 1990

Politics, Innocence And The Limits Of Goodness By Peter Johnson, Daniel R. Sabia

Faculty Publications

No abstract provided.


Techniques For Cubic Algebraic Surfaces Ii, Thomas W. Sederberg Sep 1990

Techniques For Cubic Algebraic Surfaces Ii, Thomas W. Sederberg

Faculty Publications

A survey of some techniques that may have potential for free-form modeling with algebraic surfaces is continued. Classical results as well as several recent innovations are included. Specific attention is paid to cubic algebraic surfaces, although many of the ideas presented have application to algebraic surfaces of any degree. Topics addressed include piecewise constructions, interpolation to points and space curves, and parameterization.


Theory Of Light Scattering By A Nonequilibrium Binary Mixture, J.C. Nieuwoudt, B.M. Law Aug 1990

Theory Of Light Scattering By A Nonequilibrium Binary Mixture, J.C. Nieuwoudt, B.M. Law

Faculty Publications

A binary mixture subject to a large temperature gradient is studied. Solutions of the evolution equations for the time-dependent fluctuation correlations are obtained using mode-coupling theory subject to the assumption that the mixture is not close to a critical point. From these results predictions for the light-scattering spectrum at the Rayleigh and Brillouin lines are made. The temperature gradient is shown to cause a large enhancement of the scattering amplitude at the Rayleigh line, whereas the effect at the Brillouin line is found to be small.


Suppression Of Lymphocyte Proliferation By A > 30,000 Molecular Weight Factor In Horse Conceptus-Conditioned Medium, T. L. Roth, K. L. White, D. L. Thompson, B. E. Barry, J. S. Capehart, D. R. Colborn, M. H. Rabb Aug 1990

Suppression Of Lymphocyte Proliferation By A > 30,000 Molecular Weight Factor In Horse Conceptus-Conditioned Medium, T. L. Roth, K. L. White, D. L. Thompson, B. E. Barry, J. S. Capehart, D. R. Colborn, M. H. Rabb

Faculty Publications

In this experiment we have identified and partially characterized the immunosuppressive activity of preimplantation horse conceptus-conditioned medium (HCCM). Horse conceptuses were nonsurgically flushed from mares at Days 9-10 (n = 6), 15-16 (n = 3), and 25-26 (n = 3). After incubating the conceptuses for 24 h in RPMI-1640 supplemented with 15% fetal calf serum (FCS) and 1% penicillin/streptomycin, HCCM was obtained from cultures and tested for immunosuppressive activity in lymphocyte proliferation assays. Peripheral blood lymphocytes obtained from randomly selected mares were stimulated with mitogens (pokeweed mitogen [PWM], concanavalin A [Con A], and phytohemagglutinin [PHA]) in cultures supplemented with 0%, …


Visual Analog Study Of Fill-Hole Drifts, Lsu Petroleum Engineering Research And Technology Transfer Laboratory Jul 1990

Visual Analog Study Of Fill-Hole Drifts, Lsu Petroleum Engineering Research And Technology Transfer Laboratory

Faculty Publications

No abstract provided.


Foreword: Freedom And Tenure In The Academy: The Fiftieth Anniversary Of The 1940 Statement Of Principles, William W. Van Alstyne Jul 1990

Foreword: Freedom And Tenure In The Academy: The Fiftieth Anniversary Of The 1940 Statement Of Principles, William W. Van Alstyne

Faculty Publications

This forward comments on the shared anniversary of the Bill of Rights and several declarations of academic freedom. Several of the preceding articles are intended to discuss academic freedom and the need for its protection in the U.S.


Academic Freedom And The First Amendment In The Supreme Court Of The United States: An Unhurried Historical Review, William W. Van Alstyne Jul 1990

Academic Freedom And The First Amendment In The Supreme Court Of The United States: An Unhurried Historical Review, William W. Van Alstyne

Faculty Publications

No abstract provided.


The Impact Of The Caribbean Basin Economic Recovery Act On Caribbean Nations Exports And Development: A Comment, W. Charles Sawyer, Richard L. Sprinkle Jul 1990

The Impact Of The Caribbean Basin Economic Recovery Act On Caribbean Nations Exports And Development: A Comment, W. Charles Sawyer, Richard L. Sprinkle

Faculty Publications

No abstract provided.


Techniques For Cubic Algebraic Surfaces I, Thomas W. Sederberg Jul 1990

Techniques For Cubic Algebraic Surfaces I, Thomas W. Sederberg

Faculty Publications

The tutorial presents some tools for free-form modeling with algebraic surfaces, that is, surfaces that can be defined using an implicit polynomial equation f(x, y, z )=0. Cubic algebraic surfaces (defined by an implicit equation of degree 3) are emphasized. While much of this material applies only to cubic surfaces, some applies to algebraic surfaces of any degree. This area of the tutorial introduces terminology, presents different methods for defining and modeling with cubic surfaces, and examines the power basis representation of algebraic surfaces. Methods of forcing an algebraic surface to interpolate a set of points or a space curve …


Universal Scaling Of Nonlocal And Local Resistance Fluctuations In Small Wires, H. Haucke, S. Washburn, A. D. Benoit, C. P. Umbach, Richard A. Webb Jun 1990

Universal Scaling Of Nonlocal And Local Resistance Fluctuations In Small Wires, H. Haucke, S. Washburn, A. D. Benoit, C. P. Umbach, Richard A. Webb

Faculty Publications

Resistance fluctuations in small metal samples result from coherent transport of the carriers. The wave functions of the carriers extend into regions which are not accessible classically. We have directly measured the length dependence of the nonlocal magnetoresistance fluctuations in Sb and Au wires by studying regions of our samples separated from the classical current path by a distance L which varied from 3Lcphi down to 0.2Lcphi (where Lcphi is the phase coherence length for the carriers in the metal). These fluctuations decay exponentially with L/Lcphi. Measurements along the classical current paths scale more slowly …


Tomlinsonia Stichkania Sp. Nov., A Permineralized Grass From The Pliocene To (?)Pleistocene China Ranch Beds In Sperry Wash, California, William D. Tidwell, E. M. V. Nambudiri Jun 1990

Tomlinsonia Stichkania Sp. Nov., A Permineralized Grass From The Pliocene To (?)Pleistocene China Ranch Beds In Sperry Wash, California, William D. Tidwell, E. M. V. Nambudiri

Faculty Publications

Permineralized specimens of grasses assignable to Tomlinsonia as a new species Tomlinsonia stichkania occur in the China Ranch beds of Pliocene to possible Pleistocene age in Sperry Wash in the Alexander Hills of southeastern California. The round culm of these grasses is generally solid or occasionally hollow with collateral vascular bundles in the distinct outer and indistinct inner rings. Two-ranked leaf sheaths alternately encircle and overlap the culm. Ridges and furrows occur in the abaxial surfaces of the sheaths. The epidermis of the leaf sheaths is similar to that of the culm. The leaf lamina consists of a three-layered mesophyll. …


Eigenvalue Problems Of Ginzburg–Landau Operator In Bounded Domains, Kening Lu, Xing-Bin Pan Jun 1990

Eigenvalue Problems Of Ginzburg–Landau Operator In Bounded Domains, Kening Lu, Xing-Bin Pan

Faculty Publications

In this paper we study the eigenvalue problems for the Ginzburg–Landau operator with a large parameter in bounded domains in [openface R]2 under gauge invariant boundary conditions. The estimates for the eigenvalues are obtained and the asymptotic behavior of the associated eigenfunctions is discussed. These results play a key role in estimating the critical magnetic field in the mathematical theory of superconductivity.