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1998

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Articles 2131 - 2160 of 6046

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Announcement: San Antonio Math Association Meeting Call For Papers, January 1999 May 1998

Announcement: San Antonio Math Association Meeting Call For Papers, January 1999

Humanistic Mathematics Network Journal

No abstract provided.

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I Love To Add, Kyle Cotler May 1998

I Love To Add, Kyle Cotler

Humanistic Mathematics Network Journal

No abstract provided.

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Math Rules, Blake Mayer May 1998

Math Rules, Blake Mayer

Humanistic Mathematics Network Journal

No abstract provided.

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Geometric Shapes, Sam Dudley May 1998

Geometric Shapes, Sam Dudley

Humanistic Mathematics Network Journal

No abstract provided.

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Volume 35, Number 35: May 1, 1998, University Of North Dakota May 1998

Volume 35, Number 35: May 1, 1998, University Of North Dakota

University Letter Archive

No abstract provided.

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Measuring The Applicability Of The Seville Strategy To The Mammoth Cave Area Biosphere Reserve, Debra Kreitzer May 1998

Measuring The Applicability Of The Seville Strategy To The Mammoth Cave Area Biosphere Reserve, Debra Kreitzer

Masters Theses & Specialist Projects

The dominant paradigms of the past decade involve the preservation of biodiversity through the use of landscape corridors and buffer zones, as well as the integration of economic growth through sustainable use. The International Biosphere Reserve (IBR) program, as defined in the Seville Strategy, encourages locations already involved in conservation to continue to protect biodiversity and foster harmonious relationships between humans and their environment through sustainable development. An excellent example of an IBR is the Mammoth Cave Area Biosphere Reserve (MCABR) in south-central Kentucky. In order to measure the significance of the implementation of the Seville Strategy in the MCABR, …

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Political Correctness Revisited, Jan Narveson May 1998

Political Correctness Revisited, Jan Narveson

Center for the Study of Ethics in Society Papers

Presented February 19th , 1998 for the Center for the Study of Ethics in Society

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Landowner And Tourist Attitudes Toward Elk Management In The Pine Ridge Region Of Northwestern Nebraska, R. Daniel Crank May 1998

Landowner And Tourist Attitudes Toward Elk Management In The Pine Ridge Region Of Northwestern Nebraska, R. Daniel Crank

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

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The Spin Polarized Band Structure Of Strained Thin Films Of Gadolinium, C. Waldfried, Elio Vescovo, Peter A. Dowben May 1998

The Spin Polarized Band Structure Of Strained Thin Films Of Gadolinium, C. Waldfried, Elio Vescovo, Peter A. Dowben

Peter Dowben Publications

The magnetic properties of strained thin films of gadolinium are characterized by a wave vector and thickness dependence of the exchange splitting. The spin-resolved band structure has been mapped by spin polarized photoemission, and provides considerable insight into the relationship between magnetism of local moment systems, and band structure.

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Nobel Prize Winners In Physics From 1901 To 1990: Simple Statistics For Physics Teachers, Weijia Zhang, Robert Fuller May 1998

Nobel Prize Winners In Physics From 1901 To 1990: Simple Statistics For Physics Teachers, Weijia Zhang, Robert Fuller

Robert G. Fuller Publications

A demographic database for the 139 Nobel prize winners in physics from 1901 to 1990 has been created from a variety of sources. The results of our statistical study are discussed in the light of the implications for physics teaching.

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Exact Two-Spinon Dynamic Structure Factor Of The One-Dimensional S=1/2 Heisenberg-Ising Antiferromagnet, A. Hamid Bougourzi, Michael Karbach, Gerhard Müller May 1998

Exact Two-Spinon Dynamic Structure Factor Of The One-Dimensional S=1/2 Heisenberg-Ising Antiferromagnet, A. Hamid Bougourzi, Michael Karbach, Gerhard Müller

Physics Faculty Publications

The exact two-spinon part of the dynamic spin structure factor Sxx(Q,ω) for the one-dimensional s = 1/2, XXZ model at T = 0 in the antiferromagnetically ordered phase is calculated using recent advances in the algebraic analysis based on (infinite-dimensional) quantum group symmetries of this model and the related vertex models. The two-spinon excitations form a two-parameter continuum consisting of two partly overlapping sheets in (Q,ω) space. The spectral threshold has a smooth maximum at the Brillouin zone boundary (Q = π/2) and a smooth minimum with a gap at the zone center …

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Hydrodynamic Limits For The Monomer-Dimer Surface Reaction: Chemical Diffusion, Wave Propagation, And Equistability, M. Tammaro, J. W. Evans May 1998

Hydrodynamic Limits For The Monomer-Dimer Surface Reaction: Chemical Diffusion, Wave Propagation, And Equistability, M. Tammaro, J. W. Evans

Physics Faculty Publications

For finite adspecies mobility, the lattice-gas monomer-dimer (A + B2) surface reaction model exhibits a discontinuous transition from a stable reactive steady state to a stable A-poisoned steady state, as the impingement rate PA for A increases above a critical value P*. The reactive (poisoned) state is metastable for PA just above (below) P*. Increasing the surface mobility of A enhances metastability, leading to bistability in the limit of high mobility. In the bistable region, the more stable state displaces the less stable one separated from it by a planar interface, with …

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The Growth Of Strained Thin Films Of Gadolinium, C. Waldfried, O. Zeybek, T. Bertrams, S.C. Barrett, Peter A. Dowben May 1998

The Growth Of Strained Thin Films Of Gadolinium, C. Waldfried, O. Zeybek, T. Bertrams, S.C. Barrett, Peter A. Dowben

Peter Dowben Publications

The growth of strained thin films of gadolinium has been investigated with low-energy electron diffraction (LEED) and scanning tunneling microscopy (STM) and compared to the film growth of unstrained gadolinium. Strained thin films of gadolinium are distinct from the unstrained films by a substrate induced preferential domain growth direction, which is also reflected in the electronic structure.

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Invariant Representations Of Finite Rotation Matrices And Some Applications, N. L. Manakov, A. V. Meremianin, Anthony F. Starace May 1998

Invariant Representations Of Finite Rotation Matrices And Some Applications, N. L. Manakov, A. V. Meremianin, Anthony F. Starace

Anthony F. Starace Publications

Standard representations of finite rotation matrices (FRM) are defined by expressions that are wedded to two particular coordinate frames such as, e.g., are involved in the definition of Euler angles. We present here representations for the FRM in invariant tensor forms comprised of vectors defined in a space-fixed coordinate frame K. Three explicit expressions for a FRM are presented: First, in terms of tensor products of the spherical or Cartesian basis vectors of frame K, second in a differential form containing the tensor products of gradient operators, and, third, as the superposition of so-called “minimal” bipolar harmonics depending …

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Clemson Commencement Program, May 1998, Clemson University May 1998

Clemson Commencement Program, May 1998, Clemson University

Clemson Commencement Programs

No abstract provided.

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Utah State University Commencement 1998 – Main Campus, Utah State University May 1998

Utah State University Commencement 1998 – Main Campus, Utah State University

Commencement Programs

105th Commencement of Utah State University

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Regional Disparities In Kentucky Academic Index Scores, Edward B. Reeves, Harold Harty May 1998

Regional Disparities In Kentucky Academic Index Scores, Edward B. Reeves, Harold Harty

Faculty Research at Morehead State University

Recent newspaper articles by columnist Bill Bishop in the Lexington Herald-Leader point to persistent regional disparities in achievement in Kentucky public schools. In spite of a mandate to create educational equality, the Kentucky Education Reform Act (KERA) has not eliminated inequalities in school performance scores and the problem may even be getting worse according to Mr. Bishop. The objective of the present study is to determine what disparities exist among Kentucky’s eight Service Center Regions. The analysis uses school Academic Index scores, from 1992-93 to 1996-97, averaged by region. The regional averages (or means) are compared descriptively along with the …

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Effect Of Item Clarity And Probability Of Item Endorsement On Response Latencies On Personality Test Items, James R. Kinney May 1998

Effect Of Item Clarity And Probability Of Item Endorsement On Response Latencies On Personality Test Items, James R. Kinney

All-Inclusive List of Electronic Theses and Dissertations

In this study, regression analysis was used to examine the affects of item clarity and probability of endorsement on response latencies of 60 undergraduates responding on personality test items from the Sixteen Personality Factor Questionnaire (16 Personality Factor test) (Cattell, Eber, & Tatsuoka, 1970, 5th Edition). Response latencies to personality test items, though frequently studied, have yet to be operationally utilized in the interpretation of personality tests. Forty-four items from the 16 Personality Factor test were selected. Each item from the original test was rated for clarity and matched with an emotionally neutral statement with an equivalent number of words. …

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Managers Are Appointed, Leaders Emerge: How New Scientific Paradigms Inform Organizationel Leadership, Lew Beccone May 1998

Managers Are Appointed, Leaders Emerge: How New Scientific Paradigms Inform Organizationel Leadership, Lew Beccone

Theses and Graduate Projects

For most of the 20th century the mechanistic, linear world of Newtonian science has functioned both as metaphor for thinking about organizational dynamics and as the mental model around which organizations have developed. Recently, the postclassical sciences have yielded an alternate understanding of the world, one fundamentally different from that of the Newtonian model. This paper explores a world view emerging from complexity studies and quantum physics, contrasts it with the dominant image derived from classical physics, and draws implications for organizational leadership. The lens of postclassical science challenges our fundamental ontology and reframes our views of organizational life in …

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The Problematics Of Moral And Legal Theory, Richard A. Posner May 1998

The Problematics Of Moral And Legal Theory, Richard A. Posner

Articles

In these Holmes Lectures, delivered a century after the publication of Oliver Wendell Holmes's great essay The Path of the Law, Judge Posner argues for an essentially Holmesian conception of the proper relations among modern normative moral philosophy ("academic moralism"), morality, and law. Academic moralism, he argues, lacks either the intellectual cogency or the emotional power to change people's beliefs or behavior; the power to do so resides in "moral entrepreneurs," which academic moralists emphatically are not. Academic moralism's lack of cogency disqualifies it to guide judicial decisionmaking even - in fact, especially - in cases involving controversial moral issues, …

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Um Honors Outstanding Graduating Seniors, University Of Montana--Missoula. Office Of University Relations May 1998

Um Honors Outstanding Graduating Seniors, University Of Montana--Missoula. Office Of University Relations

University of Montana News Releases, 1928, 1956-present

No abstract provided.

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Thermoconvective Instability Of Paramagnetic Fluids In A Nonuniform Magnetic Field, J. Huang, D. D. Gray, Boyd F. Edwards May 1998

Thermoconvective Instability Of Paramagnetic Fluids In A Nonuniform Magnetic Field, J. Huang, D. D. Gray, Boyd F. Edwards

All Physics Faculty Publications

The effect of a static, nonuniform magnetic field on a laterally unbounded nonconducting paramagnetic fluid layer heated from below or above is studied using a linear stability analysis of the Navier-Stokes equations supplemented by Maxwell’s equations and the appropriate magnetic body force. Buoyancy-driven convection can be controlled by subjecting the layer to a nonuniform magnetic field. Theoretical predictions agree with experimental observations.

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Tropospheric Sulfate Distribution During Success: Contributions From Jet Exhaust And Surface Sources, Jack E. Dibb, R. Talbot, M Loomis May 1998

Tropospheric Sulfate Distribution During Success: Contributions From Jet Exhaust And Surface Sources, Jack E. Dibb, R. Talbot, M Loomis

Earth Sciences

The distribution of SO4= aerosol over the central US during SUCCESS indicates that surface sources of SO4= and SO2 in the western US caused SO4= enhancements up to 10 km altitude. The mean (median) SO4= mixing ratio in the mid- and upper-troposphere increased from 24 (16) pptv over the Pacific ocean to 58 (29) pptv over the central plains. Above 10 km the SO4=mixing ratio was essentially the same in both regions, and also when the geographic classifications were further partitioned into upper tropospheric and lower stratospheric categories …

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Influence Of Vertical Transport On Free Tropospheric Aerosols Over The Central Usa In Springtime, R. Talbot, Jack E. Dibb, M Loomis May 1998

Influence Of Vertical Transport On Free Tropospheric Aerosols Over The Central Usa In Springtime, R. Talbot, Jack E. Dibb, M Loomis

Earth Sciences

Measurements of the atmospheric aerosol chemical composition during the Subsonic Aircraft: Contrail and Cloud Effects Special Study (SUCCESS) indicate substantial vertical transport of boundary layer aerosol to the free troposphere over the south-central United States during springtime. Mixing ratios of water-soluble aerosol Ca 2+ at 6 - 12 km altitude exhibited a median mixing ratio of 20 pptv, with 15% of the measurements > 100 pptv and a maximum of ! 235 pptv. In air parcels with enhanced Ca 2+, the ratios K+/Ca 2+, Mg2+/Ca 2+, and Na+/Ca 2+ in the bulk aerosol were distinctly characteristic of those in limestone and/or …

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Characterization Of Dielectric Properties Of Earth Materials At Low Frequencies, Tarrah Dawn Henrie May 1998

Characterization Of Dielectric Properties Of Earth Materials At Low Frequencies, Tarrah Dawn Henrie

Undergraduate Honors Capstone Projects

Sharma and de Lima (1992) have proposed a model based on Fixman's theoretical development of charged macromolecules in external fields (1980). There are three types of charges considered: the fixed surface charges that are covalently bonded, the layer of bound counterions, and the diffuse layer (Fixman, 1980, Lyklema, 1983 ). Figure (1) shows these different layers. Other common theories, such as Schurr's only consider the bound counterions and the diffuse layer. Schurr assumes that the diffuse layer ions can exchange with the electrolyte. A consequence of this assumption is the lack of polarization of the diffuse layer. This leads to …

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Site-Directed Mutagenesis Of The Nitrogenase Fe-Protein From Azotobacter Vinelandii, Talmage L. Shill May 1998

Site-Directed Mutagenesis Of The Nitrogenase Fe-Protein From Azotobacter Vinelandii, Talmage L. Shill

Undergraduate Honors Capstone Projects

Nitrogen fixation is the chemical reaction of dinitrogen (N2) being reduced to ammonia (NH3). This reaction occurs naturally by nitrogen fixing microorganisms which contain the enzyme nitrogenase. The overall reaction is written below.

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Plant-Availability Fractionation Of Nickel For Bioremediation, Jason Henrie May 1998

Plant-Availability Fractionation Of Nickel For Bioremediation, Jason Henrie

Undergraduate Honors Capstone Projects

The bioremediation of contaminated soils or the biomining of waste tillings has been explored through the use of hyperaccumulating plants such as S. polygaloides which is a nickel hyperaccumulator. However, it is important to discover which soils are well-suited for this type of process by determining the plant-availability of the nickel. By extracting the nickel sequentially with increasing severity it is possible to determine the chemical distribution, or fractionation, of nickel in a soil. One fraction is already suspected to be plant-available and correlates very well with the results of a previous plant-availability study. A calcareous Millville silt loam which …

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Determination Of Intracellular Glutathione Concentration Using Monobromobimane, Ryan R. Owens May 1998

Determination Of Intracellular Glutathione Concentration Using Monobromobimane, Ryan R. Owens

Undergraduate Honors Capstone Projects

Asbestos is a general term for a group of fibrous silicates. Diseases such as asbestosis, bronchogenic carcinoma, and mesothelioma have been linked to asbestos exposure (1,2). The 1 two classes of asbestos, serpentine and amphibole, are distinguished by differences in structure and chemical composition (3). The amphibole crocidolite contains 27% iron while the serpentine chrysotile contains only 2-3% iron. The higher iron content of crocidolite is proposed to be a contributing factor for a much higher incidence of cancer with crocidolite exposure compared with chrysotile exposure ( 4). Iron mobilized intracellularly from asbestos fibers may participate in the formation of …

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Thermal Decomposition Of Cp*Re(Co)(No)No2, Kale Allen Swainston May 1998

Thermal Decomposition Of Cp*Re(Co)(No)No2, Kale Allen Swainston

Undergraduate Honors Capstone Projects

The focus of this work is to examine the thermal reactivity of the Cp*Re(CO)(NO)NO2 complex. Upon heating with a flame, the orange crystals decompose very rapidly, with a darkening of color and gas production. To investigate this reaction, the decomposition was carefully controlled by heating with N2 gas, and in heated solution. The products obtained from the heated solution were purified using column chromatography, yielding two new interesting compounds, believed to be Cp*ReNO dimers with bridging oxygens.

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A Parent's Guide To Assisting Learning Disabled Children At Home, Sandra Elaine Baker May 1998

A Parent's Guide To Assisting Learning Disabled Children At Home, Sandra Elaine Baker

Undergraduate Honors Capstone Projects

Our schools are overcrowded, teachers are spread too thin, and often children with learning disabilities are left alone to get by in school (Rosner, 1993). Many of them end up falling through the cracks in the floor by middle school. Learning disabilities are not manifest in physical ways necessarily and many times go unnoticed and/or untreated (Bloom, 1996). This can be very damaging to a child both in an academic sense and in an affective sense. Self-esteem is lowered and sometimes continued failure in one scholastic area can mean failure in other areas such as reading which in tum affects …

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