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Articles 284551 - 284580 of 303990
Full-Text Articles in Physical Sciences and Mathematics
13C Nmr Investigation Of Nonenzymatic Glucosylation Of Protein, Carolyn I. Neglia, Helga J. Cohen, Albert R. Garber, Paul D. Ellis, Suzanne R. Thorpe, John W. Baynes
13C Nmr Investigation Of Nonenzymatic Glucosylation Of Protein, Carolyn I. Neglia, Helga J. Cohen, Albert R. Garber, Paul D. Ellis, Suzanne R. Thorpe, John W. Baynes
Faculty Publications
Nonenzymatic glucosylation of protein is initiated by the reversible condensation of glucose in its open chain form with the amino groups on the protein. The initial product is an aldimine (Schiff base) which cyclizes to the glycosylamine derivative. The aldimine can undergo a slow Amadori rearrangement to yield the relatively stable ketoamine adduct which is structurally analogous to fructose. 13C NMR has been used to characterize these early products of nonenzymatic glucosylation, using RNase A as a model protein. C-1 of the beta-pyranose anomer of the glycosylamine was identified at 88.8 ppm in the spectrum of RNase glucosylated approximately 1:1 …
Plasma Polymerization Of Tetramethyldisiloxane By A Magnetron Glow Discharge, Ashok K. Sharma, H. Yasuda
Plasma Polymerization Of Tetramethyldisiloxane By A Magnetron Glow Discharge, Ashok K. Sharma, H. Yasuda
Chemistry Faculty Research & Creative Works
Plasma polymerization of tetramethyldisiloxane by a magnetron glow discharge was studied. The glow discharge was created between parallel electrodes with a 10 kHz electric power source with a superimposed magnetic field using permanent bar magnets. Polymers were deposited onto moving substrates placed on the surface of a rotating disc located in between the electrodes. The deposition rates were determined with a quartz crystal thickness monitor placed on the plane of the rotating disc and just outside the edge of the disc. The current-voltage relationship observed for plasma polymerization of the monomer depends on the monomer feed rate and the conditioning …
A Linear Time Algorithm For The Minimum Area Rectangle Enclosing A Convex Polygon, Dennis S. Arnon, John P. Gieselmann
A Linear Time Algorithm For The Minimum Area Rectangle Enclosing A Convex Polygon, Dennis S. Arnon, John P. Gieselmann
Department of Computer Science Technical Reports
No abstract provided.
Scs 84: The Zariski Topology On Semilattices And Essential Extensions, Gerhard Gierz, Albert R. Stralka
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
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.
Nitrate Plus Nitrite Concentrations In A Himalayan Ice Core, William Berry Lyons, Paul Andrew Mayewski
Nitrate Plus Nitrite Concentrations In A Himalayan Ice Core, William Berry Lyons, Paul Andrew Mayewski
Earth Science Faculty Scholarship
The measurement of chemical constituents in glacial ice has been useful in discerning historic trends in chemical deposition and hence paleo-atmospheric records in remote areas (Thompson and Mosley - Thompson, 1981; Johnson and Chamberlain, 1981; Ng and Patterson, 1981; Neftel et al., 1982). However, delineating the sources of the deposited chemical species in question is not always straightforward. This has been especially true for nitrate. Although it is now believed that man-made emissions are responsible for a high percentage of nitrate being deposited in remote areas of the Northern Hemisphere, numerous natural sources, named and unnamed, have also contributed to …
Magnetic Phase Transition, Aggregate Formation, And Electrical Conductivity In Fecl3-Doped Polyacetylene, E. K. Sichel, M. F. Rubner, J. Georger, Jr., G. C. Papaefthymiou, S. Offer, Richard B. Frankel
Magnetic Phase Transition, Aggregate Formation, And Electrical Conductivity In Fecl3-Doped Polyacetylene, E. K. Sichel, M. F. Rubner, J. Georger, Jr., G. C. Papaefthymiou, S. Offer, Richard B. Frankel
Physics
Both Fe3+ and Fe2+ ions occur in FeCl3-doped polyacetylene. At low dopant levels (2+ and Fe3+ ions are paramagnetic down to 4.2 K. At dopant levels >0.01 mole fraction, there is evidence from Mössbauer spectroscopy that Fe2+ ions associate into aggregates which are magnetically ordered below 25 K. Aggregate formation appears to correlate with high electrical conductivity.
Low-Mass Solitons From Fractional Charges In Quantum Chromodynamics, A. P. Balachandran, V. Parameswaran Nair, N. Panchapakesan, S. G. Rajeev
Low-Mass Solitons From Fractional Charges In Quantum Chromodynamics, A. P. Balachandran, V. Parameswaran Nair, N. Panchapakesan, S. G. Rajeev
Publications and Research
Slansky, Goldman, and Shaw have proposed a model to account for the observation of fractionally charged states. We show that in this model, there are expected to be several low-mass solitons (four being in the mass range ∼20-60 MeV) associated with the third homotopy group π3(SU(3)/SO(3))=Z4, besides a low-mass (∼30 MeV) Z2 monopole. Confirmation of these levels and hence of the model has important implications for Cabrera's results on the magnetic monopole. An efficient algorithm for the calculation of π3(G/H) for a general Lie group G and a subgroup H is developed. It is pointed …
Effect Of Irrigation On Corn, Soybeans And Alfalfa Yields In Kentucky, Lloyd W. Murdock
Effect Of Irrigation On Corn, Soybeans And Alfalfa Yields In Kentucky, Lloyd W. Murdock
Soil Science News and Views
Irrigation is not widely used in Kentucky for two reasons: 1) high average yearly rainfall, and 2) lack of easily accessible and dependable water sources. However, even with the high yearly rainfall, droughts do occur during the growing season. According to past history, they are more likely to occur in West Kentucky than Central Kentucky and least likely to occur in East Kentucky.
Scs 82: Compactifying Distributive Lattices, Gerhard Gierz, Albert R. Stralka
Scs 82: Compactifying Distributive Lattices, Gerhard Gierz, Albert R. Stralka
Seminar on Continuity in Semilattices
No abstract provided.
Geology Newsletter- 1983, Department Of Geology
Geology Newsletter- 1983, Department Of Geology
Geological and Environmental Sciences News
Vol. 1 No. 8
- Dear Alumni and Friends
- Geology Development Fund
- Faculty News
- Geology/ Earth Science Club
- 1982-1983 Awards and Scholarships
- Alumni News
- Geology Department Graduate Students
Centers Of Polymer Research; Polymer Science In Northeastern Japan, Otto Vogl, T. Yamaguchi
Centers Of Polymer Research; Polymer Science In Northeastern Japan, Otto Vogl, T. Yamaguchi
Otto Vogl
No abstract provided.
The Probe, Issue 38 - December 1983
The Probe, Issue 38 - December 1983
The Probe: Newsletter of the National Animal Damage Control Association
The Probe National Animal Damage Control Association
No. 38 December, 1983
USFWS trying to close ADC
Ye Ed Comments
MIS Reports
Letters to Ye Ed
Meetings
Wolves
Almost Sure Stability Of Partial Sums Of Uniformly Bounded Random Variables, Theodore P. Hill
Almost Sure Stability Of Partial Sums Of Uniformly Bounded Random Variables, Theodore P. Hill
Research Scholars in Residence
Suppose a1 , a2 ,... is a sequence of real numbers with an → ∞. If lim sup(X1+ ... + Xn)/an = α a.s. for every sequence of independent nonnegative uniformly bounded random variables X1,X2,... satisfying some hypothesis condition A, then for every (arbitrarily-dependent) sequence of nonnegative uniformly bounded random variables Y1,Y2, ... , lim sup(Y1+ ... + Yn)/an = α a.s. on the set where the conditional distributions (given the past) satisfy …
Isotope Effect And Momentum-Transfer Scaling In The Elastic-Scattering Differential Cross Sections For Hydrogen-Isotope Collision Systems, Eduard P. Rille, Jerry Peacher, Denver G. Seely, Thomas J. Kvale, E. Redd, D. M. Blankenship, John T. Park
Isotope Effect And Momentum-Transfer Scaling In The Elastic-Scattering Differential Cross Sections For Hydrogen-Isotope Collision Systems, Eduard P. Rille, Jerry Peacher, Denver G. Seely, Thomas J. Kvale, E. Redd, D. M. Blankenship, John T. Park
Physics Faculty Research & Creative Works
A projectile-dependent isotope effect was found for the elastic-scattering differential cross sections in the hydrogen-isotope collision systems. All four differential cross sections lie on a common curve if they are divided by the square of the reduced mass and plotted against momentum transfer. The experimental results are in satisfactory agreement with a simple Glauber-approximation calculation.
The Prairie Naturalist Volume 15, No. 4. December 1983
The Prairie Naturalist Volume 15, No. 4. December 1983
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
ASPECTS OF THE NESTING ECOLOGY OF LEAST TERNS AND PIPING PLOVERS IN CENTRAL NEBRASKA ▪ C. A. Faanes
LEAD SHOT INCIDENCE IN SANDHILL CRANES COLLECTED FROM ALASKA, CANADA, AND TEXAS ▪ B. M. Wallace, R. J. Warren and G. D. Gaines
LEAD SHOT INCIDENCE IN WATERFOWL COLLECTED FROM THE TEXAS HIGH PLAINS ▪ B. M. Wallace, R. J. Warren and R. J. Whyte
SMALL MAMMALS OF WINTER WHEAT AND GRAIN SORGHUM CROPLANDS IN WEST-CENTRAL KANSAS ▪ K. W. Navo and E. D. …
Cross Sections For Ionizaton Of Gases By 5-4000-Kev Protons And For Electron Capture By 5-150-Kev Protons, M. Eugene Rudd, R. D. Dubois, L. H. Toburen, C. A. Ratcliffe, T. V. Goffe
Cross Sections For Ionizaton Of Gases By 5-4000-Kev Protons And For Electron Capture By 5-150-Kev Protons, M. Eugene Rudd, R. D. Dubois, L. H. Toburen, C. A. Ratcliffe, T. V. Goffe
M. Eugene Rudd Publications
Using the parallel-plate-capacitor method and a capacitance manometer to determine pressures, total cross sections for the production of positive and negative charges were measured for 5-4000- keV-proton impact on He, Ne, Ar, Kr, Hz, N2, CO, 02, CH4, and C02. From these, ionization and electron-capture cross sections were obtained and fitted to semi-empirical equations describing the energy dependence in terms of a few parameters. At high energies very good agreement is obtained in the comparison of the ionization cross sections to earlier proton- and electron-impact measurements and with theoretical treatments where they …
Electron Drift Velocities In Gas Mixtures Of He, N2, And Co 2, Michael C. Cornell, Ian M. Littlewood, Howard L. Brooks, Kaare J. Nygaard
Electron Drift Velocities In Gas Mixtures Of He, N2, And Co 2, Michael C. Cornell, Ian M. Littlewood, Howard L. Brooks, Kaare J. Nygaard
Physics Faculty Research & Creative Works
An electron swarm experiment has been used to obtain electron drift velocities in the He:CO2:N2 mixtures 0:1:1, 3:1:2, and 3:1:1. The E/N range of 3 to 57 Td was studied with total gas pressure varied from 50 to 200 Torr. These particular mixtures have not been previously studied experimentally. Good agreement is observed between theoretical calculations and experimental data.
Ads Formal Semantics, Takayuki Kimura
Ads Formal Semantics, Takayuki Kimura
All Computer Science and Engineering Research
Abstract Database System (ADS) is a data model developed for an enduring medical information system where frequent changes in the conceptual schema are anticipated and multi-level abstraction is required. The mechanism of abstraction in ADS is based on the abstraction operator of the lamba calculus. The formal semantics of a subset of the ADS model is presented using the denotational specification method.
On Isomorphic Decompositions Of Graphs, Sergio Ruiz
On Isomorphic Decompositions Of Graphs, Sergio Ruiz
Dissertations
A decomposition of a nonempty graph G is a collection of subgraphs G(,1), G(,2), ... , G(,k) of G such that their edge sets form a partition of the edge set of G. If G(,i) is isomorphic to a fixed graph H for each i, then G has an isomorphic decomposition into the graph H or, equivalently, G is H-decomposable. Several topics, each concerning isomorphic decompositions, are investigated in this dissertation.
An historical introduction to the subject of isomorphic decompositions is given in Chapter I. We also present there some new information on finding regular graphs that are H-decomposable for …
Two- And Three-Body Electron-Ion Recombination In Carbon Dioxide, Ian M. Littlewood, M. C. Cornell, B. K. Clark, Kaare J. Nygaard
Two- And Three-Body Electron-Ion Recombination In Carbon Dioxide, Ian M. Littlewood, M. C. Cornell, B. K. Clark, Kaare J. Nygaard
Physics Faculty Research & Creative Works
The electron-ion recombination rate in carbon dioxide was measured as a function of electric field strength and gas pressure. The separate effects of two- and three-body recombination was observed, and the respective rate constants obtained. The results indicate that three-body recombination is dominant at low field strengths for gas pressures above 1 atm, whereas two-body recombination is dominant at high field strengths.
Charge Transfer And Ionisation Processes Involving Multiply Charged Ions In Collision With Atomic Hydrogen, D. J.W. Hardie, Ronald E. Olson
Charge Transfer And Ionisation Processes Involving Multiply Charged Ions In Collision With Atomic Hydrogen, D. J.W. Hardie, Ronald E. Olson
Physics Faculty Research & Creative Works
Total cross sections are presented for the charge transfer reaction Xq++H(1s) to X(q-1)+H+ and ionization process Xq++H(1s) to Xq++H+-e-. Here Xq+ is a fully or partially stripped ion. The collision energy range lies between 25-200 keV amu-1. Cross sections are also given for charge transfer into particular ionic n states and n, l states for energies of 25 and 50 keV amu-1, where Xq+=H+, He 2+, C6+, O8+. The calculations were performed by the classical trajectory Monte Carlo method of Olson and …
The Joint Venture Controversy: A Short-Term Solution For A Long-Term Fisheries Policy, Laurie A. Frost
The Joint Venture Controversy: A Short-Term Solution For A Long-Term Fisheries Policy, Laurie A. Frost
Marine Affairs Theses and Major Papers
This paper will examine the development of joint ventures under the FCMA, the legislative and regulatory measures designed to control these ventures and the procedures for establishing a joint venture. More recent developments in joint venture policy will be examined, including the controversy over squid joint ventures on the East Coast, to determine what the objectives are and what current policy is regarding join ventures. The debate between harvesters and processors will be put forth as a way of summarizing the costs and benefits of joint ventures to the industry as a whole.
Mst Radar Data-Base Management, Vincent B. Wickwar
Mst Radar Data-Base Management, Vincent B. Wickwar
All Physics Faculty Publications
No abstract provided.
A Microsystem Sediment-Water Simulation Study For The Proposed Jordanelle Reservoir, Heber City, Utah, United States Department Of The Interior, Bureau Of Reclamation
A Microsystem Sediment-Water Simulation Study For The Proposed Jordanelle Reservoir, Heber City, Utah, United States Department Of The Interior, Bureau Of Reclamation
Water
The technique of microsystem sediment-water simulation was used to predict water quality data for the proposed Jordanelle Reservoir, Heber City, Utah. Simulation microsystems were prepared for four sites located in the north arm of the reservoir basin including two sites located in an abandoned acid mine tailings pond. Data obtained from the tailings pond microsystems indicated that low pH water and high trace metal concentrations will exist in the north arm of the reservoir. These data suggested that some kind of membrane or compacted earth lining will be necessary to seal and contain the mine spoilage. Other sites in the …
Environment Of Deposition Of The A-1 Carbonate, Salina Group, Michigan Basin, Barbara June Leonard
Environment Of Deposition Of The A-1 Carbonate, Salina Group, Michigan Basin, Barbara June Leonard
Masters Theses
The lower Salina Group of the Michigan Basin is composed of a cyclic succession of carbonate and evaporite units. The lowermost Salina unit is the A-1 unit which consists of a lower A-1 evaporite and an upper A-1 carbonate. The A-1 unit is underlain by Niagara Group carbonates. The transition from Niagaran carbonates to A-1 evaporite to A-1 carbonate has not been thoroughly understood and previous models have not satisfied some of the evidence. This paper sets forth the hypothesis that the A-1 carbonate was deposited in a non-marine lake environment rather than an isolated marine environment. Findings supporting this …
A Magnetic And Resistivity Survey Of Cork Street Landfill, Stanislaw Leja
A Magnetic And Resistivity Survey Of Cork Street Landfill, Stanislaw Leja
Masters Theses
Geophysical techniques such as magnetic and electrical resistivity methods are being increasingly applied in investigations of landfills.
For this survey, measurements of the intensity of the earth's magnetic field were taken at regular intervals along traverses. Resistivity readings were taken at selected intervals along the same or very similar traverses. Additional resistivity depth measurements or soundings were obtained at selected points in and around the landfill.
Profiles were analyzed for individual dump structures and for overall magnetic and resistivity response. Contour maps were drawn from the measurements at the site to depict broad trends or patterns. Deeper subsurface geology was …
Cationic And Anionic Micellar Catalyzed Hydrolysis Of Hydroxamic Acids, Douglas Eugene Conran
Cationic And Anionic Micellar Catalyzed Hydrolysis Of Hydroxamic Acids, Douglas Eugene Conran
Masters Theses
The hydrolysis of octanohydroxamic and N-methyloctanohydroxamic acids in the presence of cationic and anionic micelles was investigated. Rate constants were determined for the hydrolyses in cetyltrimethylammonium bromide (ctab), the cationic surfactant, with 0.1111 N NaOH and in sodium 1-dodecanesulfonate, the anionic surfactant, with 0.09270 N HC1 at 50.01 + 0.11°C. The acid hydrolysis and the base hydrolysis of N-methyloctanobydroxamic acid followed the standard model for micellar catalysis.
The Geology Of The Southern Bull Mountain Area, Jefferson County, Montana, Michael Edward Streeter
The Geology Of The Southern Bull Mountain Area, Jefferson County, Montana, Michael Edward Streeter
Masters Theses
The Late Cretaceous-Early Tertiary Laramide orogeny was responsible for the northward tilting of the pre-Eocene rocks of the area. The Late Cretaceous deposition of the Elkhorn Mountains Volcanics resulted in the volcanic-Madison Group unconformity. Late Cretaceous faulting took place probably in response to caldera subsidence. Laramide uplift erosion and downstream transport resulted in the deposition of the Conrow Creek conglomerate and debris flows over the Lodgepole Limestone. Block faulting took place in response to regional extension probably during Late Oligocene-Early Miocene time resulting in the formation of the St. Paul's Gulch, Golden Sunlight, and Boulder basin faults. The Oligocene Dunbar …
Non-Equilibrium L-Shell Effects On K-Shell X Rays For 20-54 Mev S+C Collisions, Donald Solon Shippy
Non-Equilibrium L-Shell Effects On K-Shell X Rays For 20-54 Mev S+C Collisions, Donald Solon Shippy
Masters Theses
Projectile K x-ray yields have been measured as a function of target thickness (2.0-150 μg/ cm2) for 20-54 MeV Sq+ ions incident on this carbon foils using the WMU EN tandem Van de Graaff accelerator. The measured K x-ray yields were fond to increase for thicknesses < 15 μg/cm2 and decease for thicknesses > 15 μg/cm2 . The increasing yield is attributed to L-Shell non-equilibrium as the ion traverses the foil, while the decreasing yield is attributed to K-shell non-equilibrium. Analysis of the data was performed by modifying the "two-component" model of Betz et al. to include the effect of …