Digital Commons Network^™

Why Are There Warriors In Plato's Republic?, John Patrick Coby

Government: Faculty Publications

The warriors are a troublesome addition to the city founded by Socrates. Continuous supervision and a heavy-handed pedagogy are required just to keep them from oppressing the producing class. They also never accomplish the mission they initially are given — the violent taking of adjacent lands. So why are they summoned and set up in power? For that matter, why is spiritedness cultivated instead of discouraged or suppressed? The above questions indicate that there is a case to be made against warriors in the city and spiritedness in the soul. After making that case, the paper turns to constructing a …

Utb/Tsc This Week 2001-03, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information

UTB/TSC Archives - This Week Newsletter

No abstract provided.

Branching Exponent Heterogeneity And Wall Shear Stress Distribution In Vascular Trees, Kelly Lynn Karau, Gary S. Krenz, Christopher A. Dawson

Mathematics, Statistics and Computer Science Faculty Research and Publications

A bifurcating arterial system with Poiseuille flow can function at minimum cost and with uniform wall shear stress if the branching exponent (z) = 3 [where z is defined by (D ₁)^z = (D ₂)^z + (D ₃)^z; D ₁ is the parent vessel diameter and D ₂ and D ₃ are the two daughter vessel diameters at a bifurcation]. Because wall shear stress is a physiologically transducible force, shear stress-dependent control over vessel diameter would appear to provide a means for preserving this optimal structure through maintenance …

A Mechanistic Model For Internal Bone Remodeling Exhibits Different Dynamic Responses In Disuse And Overload, Scott J. Hazelwood, R. Bruce Martin, Mark M. Rashid, Juan J. Rodrigo

Biomedical Engineering

Bone is a dynamic tissue which, through the process of bone remodeling in the mature skeleton, renews itself during normal function and adapts to mechanical loads. It is, therefore, important to understand the effect of remodeling on the mechanical function of bone, as well as the effect of the inherent time lag in the remodeling process. In this study, we develop a constitutive model for bone remodeling which includes a number of relevant mechanical and biological processes and use this model to address differences in the remodeling behavior as a volume element of bone is placed in disuse or overload. …

Can The Market Evaluate Legal Regimes? A Response To Professors Rasmussen, Thomas, And Skeel, Lynn M. Lopucki

Vanderbilt Law Review

Scholarly projects benefit from thoughtful criticism-particularly by those committed to a contrary view. For that reason, I feel fortunate that the three leading proponents of the efficiency of Delaware bankruptcy reorganization have taken the time to respond to our study.'

These three critics recognize that the stakes are enormous. As Professor Rasmussen and Professor Thomas put it, the bankruptcy reorganization of large, public companies was "Delawarized" during the decade of the 1990s. If it can be shown that, during the period of Delawarization, the Delaware court provided a wasteful and inefficient reorganization process, it follows that even a very sophisticated …

Hubble Space Telescope Images Of The Ultraluminous Supernova Remnant Complex In Ngc 6946, William P. Blair, Robert A. Fesen, Eric M. Schlegel

Dartmouth Scholarship

We present Hubble Space Telescope (HST) narrow-passband Hα and [S II] images and broadband continuum images of the region around an extremely luminous optical and X-ray supernova remnant complex in the spiral galaxy NGC 6946. These images, obtained with the PC1 CCD of the Wide Field Planetary Camera 2, show a circular, limb-brightened shell of diameter 035 [9 d/(5.1 Mpc) pc] superposed on the edge of a larger, lower surface brightness elliptical shell (14 × 08, or 34 pc × 20 pc). The HST images allow us to see that the [S II] : Hα ratio remains …

An Optical Survey Of Outlying Ejecta In Cassiopeia A: Evidence For A Turbulent, Asymmetric Explosion, Robert A. Fesen

Dartmouth Scholarship

A deep optical survey of the Cassiopeia A supernova remnant has revealed dozens of new emissionline ejecta knots out beyond the remnantÏs bright nebular shell. Most of the newly detected knots exhibit a 4500È 7500 A. spectrum dominated by [N II ] jj 6548,6583 line emissions. After accounting for possible decelerations, the estimated space velocities for about four dozen of these [N II ] knots suggest a nearly isotropic ^ 10,000 km s~1 ejection velocity. However, a small group along the southwestern limb show signi‹cantly higher velocities of up to 12,000 km s~1 . Over 20 outlying O] S emission …

Scalable Qos-Aware Disk Scheduling, Walid G. Aref, Kaled El-Bassyouni, Ibrahim Kamel, Mohamed F. Mokbel

Department of Computer Science Technical Reports

No abstract provided.

Bear Behavior In The Vicinity Of Supplemental Feeding Stations In Western Washington, Dale L. Nolte, Timothy J. Veenendaal, George J. Ziegltrum, Philipp Fersterer

United States Department of Agriculture Wildlife Services: Staff Publications

Black bear can inflict severe negative Impacts on timber stands in the northwestern United States. A supplemental feeding program to provide bears an alternative food source during spring is practiced in the stat e of Washington, and to a lesser extent in other states. We initiated concurrent studies to assess characteristics of bear that forage at feeding stations, the interactions of bears around feeders, and impacts of the program on bear territories. Numerous bears fed at stations, including females with and without cubs, yearlings. and males. Bear feeding bouts at stations were generally short, less than 15 minutes. Bears generally …

Motor Control Of Human Gait: A Dynamic Systems Perspective, Gary P. Austin

All PTHMS Faculty Publications

Fundamentally, gait permits humans to move intentionally and independently from place to place and to interact with the environment. Human gait, as ordinary as it may seem, is a wonderful illustration of the complex, yet precise action emerging from the interplay of the organism and the environment. As a result of this precision, the locomotor system functions safely and efficiently regardless of the ever-varying environmental conditions. Successful movement ultimately depends on the control, coordination, and integration of the many resources offered by the locomotor system and the environment.

Straight From The Heart, Volume 2, Number 6, Division Of University Relations

News, Magazines and Reports

Highlights: Faculty authors contribute to scholarship -- Professors McAllister, Neu reach out to Salvadorans -- Gov. Rowland, six others to be feted at Discovery Dinner -- Institute for Religious Education and Pastoral Studies (REAPS) pursues links with Australian church educators -- Coaches Corner: Brian Reardon -- Accomplishments -- Briefly noted -- Calendar.

Measurability Is Not About Information, Juan Dubra, Federico Echenique

Cowles Foundation Discussion Papers

We comment on the relation between models of information based on signals/partitions, and those based on sigma-algebras. We show that more informative signals need not generate finer sigma-algebras, hence that Blackwell’s theorem fails if information is modeled as sigma-algebras. The reason is that the sigma-algebra generated by a partition does not contain all the events that can be known from the information provided by the signal. We also show that there is a non-conventional sigma-algebra that can be associated to a signal which does preserve its information content. Further, expectations and conditional expectations may depend on the choice of sigma-algebra …

The Colby Echo (2001-03-01), Colby College

The Colby Echo

Published by the students of Colby College since 1877, The Colby Echo is the weekly, editorially independent student-run newspaper of Colby College in Waterville, Maine. Published monthly, 1877-1886; semi-monthly, 1886-1897; and weekly, during the academic year, 1898-present.

Geology Of Pioneers Park, Lancaster County, Nebraska, Roger K. Pabian

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Management Of Soil Organic Matter And Gypsum For Sustainable Production In The Carnarvon Horticultural District Of Western Australia, R.S.B. Greene, A.J. Lin, D. C. Parr

Agriculture reports

Soil quality is critically important for the long-term production of high quality and high yielding fruit and vegetable crops in the Carnarvon horticultural district of Western Australia. A stable soil structure is essential for good soil quality.

New Solvable Singular Potentials , R. Dutt, Asim Gangopadhyaya, C. Rasinariu, Uday P. Sukhatne

Physics: Faculty Publications and Other Works

We obtain three new solvable, real, shape invariant potentials starting from the harmonic oscillator, Pöschl-Teller I and Pöschl-Teller II potentials on the half-axis and extending their domain to the full line, while taking special care to regularize the inverse square singularity at the origin. The regularization procedure gives rise to a delta-function behavior at the origin. Our new systems possess underlying non-linear potential algebras, which can also be used to determine their spectra analytically.

Elementary Teachers' Commitment Declines: Antecedents, Processes, And Outcomes, Christine Joffres, Margaret Haughey

The Qualitative Report

This qualitative study examines the organizational, social, and personal factors that may influence elementary teachers' declining commitments. Our findings suggest that when the teachers under study felt unsuccessful, that is, when they experienced low feelings of efficacy and low feelings of community, teachers' commitments' shifted or declined. However, the impact of negative teaching experiences on commitments is far from uniform. Rather the teachers' commitments declined as a function of the teachers' understandings of their perceived failures.

Gravity Wave Propagation Directions Inferred From Satellite Observations Including Smearing Effects, Jason S. Brown, Michael P. Hickey Ph.D.

Publications

We simulate space-based, sublimb viewing observations of airglow brightness fluctuations caused by atmospheric gravity wave interactions with the O2 atmospheric airglow, and we demonstrate that because of the geometry associated with such observations, the brightness fluctuations observed for the optically thick 0–0 band emission will always appear stronger for waves traveling toward the observer (the satellite). The effect should be most noticeable for waves having relatively small vertical wavelengths (∼10 km) and horizontal wavelengths of 50 km or greater. For waves of short (∼100 km) horizontal wavelength, the brightness fluctuation anisotropy with respect to viewing direction may also be evident …

Walker-Assisted Gait In Rehabilitation: A Study Of Biomechanics And Instrumentation, Rebecca Ann Bachschmidt, Gerald F. Harris, Guy G. Simoneau

Physical Therapy Faculty Research and Publications

While walkers are commonly prescribed to improve patient stability and ambulatory ability, quantitative study of the biomechanical and functional requirements for effective walker use is limited. To date no one has addressed the changes in upper extremity kinetics that occur with the use of a standard walker, which was the objective of this study. A strain gauge-based walker instrumentation system was developed for the six degree-of-freedom measurement of resultant subject hand loads. The walker dynamometer was integrated with an upper extremity biomechanical model. Preliminary system data were collected for seven healthy, right-handed young adults following informed consent. Bilateral upper extremity …

Vital Signs, Spring 2001, Boonshoft School Of Medicine

Vital Signs

A twenty-one page newsletter created by the Boonshoft School of Medicine to document the current affairs of the school. This issue includes feature articles, student notes, and more.

2001 March, Office Of Communications & Marketing, Morehead State University.

Morehead State Press Release Archive, 1961 to the Present

Morehead State University press releases for March of 2001.

District Magnitude, Electoral Formula, And The Number Of Parties, Kenneth Benoit

Research Collection School of Social Sciences

Duverger's propositions concerning the psychologicaland mechanical consequences of electoral rules have previously beenexamined mainly through the lens of district magnitude,comparing the properties of single-member district pluralityelections with those of multimember proportional representationelections. The empirical consequences of multi-member plurality(MMP) rules, on the other hand, have received scant attention.Theory suggests that the effect of district magnitude on the numberand concentration of parties will differ with regard to whether theallocation rules are plurality-based or proportional. I test thistheory by drawing on a uniquely large-sample dataset where districtmagnitude and electoral formula vary but the basic universe ofpolitical parties is held constant, applying regression analysis …

Carrington, Cooley, Kennedy, Klare, Patrick O. Gudridge

Cardozo Law Review

No abstract provided.

Justice Delayed Is Justice Denied: A Cooperative Game Theoretic Analysis Of Hold-Up In Co-Ownership, Manel Baucells, Steven A. Lippman

Cardozo Law Review

In order to investigate the hold-up problem in co-ownership, we consider an indivisible asset in which one owner holds essentially 100% of the asset whereas the other, by virtue of ownership, has the legal right to block the sale of the asset. Apart from negotiation, the big owner's only remedy is to seek a legal partition, a procedure that eventually imparts the right to sell. As with most legal procedures, the remedy imposes legal costs and delay. Because the two parties are aware of this, they efficiently negotiate and divide the value of the asset without recourse to the courts. …

Dit Independent, 1st.-31st. Of March, 2001, Dit:Students Union

DIT Student Union

No abstract provided.

On-Road Remote Sensing Of Automobile Emissions In The Los Angeles Area: Year 2, Sajal S. Pokharel, Gary A. Bishop, Donald H. Stedman

Fuel Efficiency Automobile Test Publications

The University of Denver conducted the second year of a five year remote sensing study in the Los Angeles, CA area. The remote sensor used in this study is capable of measuring the ratios of CO, HC, and NO to CO2 in motor vehicle exhaust. From these ratios, we calculate the percent concentrations of CO, CO2, HC and NO in motor vehicle exhaust which would be observed by a tailpipe probe, corrected for water and any excess oxygen not involved in combustion. The system used in this study was also configured to determine the speed and acceleration of the vehicle, …

Open Strings, 2d Gravity, And Ads/Cft Correspondence, Mariano Cadoni, Marco Cavaglia

Physics Faculty Research & Creative Works

We present a detailed discussion of the duality between dilaton gravity on AdS₂ and open strings. The correspondence between the two theories is established using their symmetries and field theoretical, thermodynamic, and statistical arguments. We use the dual conformai field theory to describe two-dimensional black holes. In particular, all the semiclassical features of the black holes, including the entropy, have a natural interpretation in terms of the dual microscopic conformai dynamics. The previous results are discussed in the general framework of the anti-de Sitter/conformal field theory dualities.

Non-Sequential Double Ionization Of Ne In Intense Laser Pulses: A Coincidence Experiment, Robert Moshammer, Bernold Feuerstein, Daniel Fischer, Alexander Dorn, Claus Dieter Schroter, J. Deipenwisch, Jose R. Crespo Lopez-Urrutia, C. Hohr, Paul B. Neumayer, Joachim Hermann Ullrich, Horst Rottke, Christoph Trump, M. Wittmann, Georg Korn, Wolfgang Sandner

Physics Faculty Research & Creative Works

The dynamics of Neon double ionization by 25 fs, 1.0 PW/cm² laser pulses at 795 nm has been studied in a many particle coincidence experiment. The momentum vectors of all ejected atomic fragments (electrons and ions) have been measured using combined electron and recoil-ion momentum spectroscopy. Electron emission spectra for double and single ionization will be discussed. In both processes the mean electron energies differ considerably and high energetic electrons with energies of more than 120 eV have been observed for double ionization. The experimental results are in qualitative agreement with the rescattering model.

X-Ray Velocimetry Of Solar Wind Ion Impact On Comets, P. Beiersdorfer, C. M. Lisse, Ronald E. Olson, G. V. Brown, H. Chen

Physics Faculty Research & Creative Works

Laboratory measurements of the interaction of low-energy, bare, and hydrogen-like ions with neutral gases are presented. The measurements demonstrate that charge-exchange-induced cometary K-shell X-ray spectra represent rich spectral diagnostics for determining the speed of the solar wind and the collision dynamics within the coma. We show that the K-shell spectrum observed from low-energy ion-neutral collisions (≤ 50 km s-1) has a distinct high-energy component that is suppressed in high-energy collisions (≥800 km s-1). As a result, the hardness ratio of the K-shell spectrum increases by as much as a factor of 4 as the ions decelerate in the coma. The …

Assessment Of The Effects Of Entrainment And Wind Shear On Nuclear Cloud Rise Modeling, Daniel E. Zalewski

Theses and Dissertations

The Missile Defense Agency (MDA) plans to construct, during a two-week period, an X-Band Radar (XBR) on Shemya, AK. Wind speeds must not, at any time during the construction, exceed a 25 knot limit set by the MDA for lifting the massive dome panels into place. The goal of this research was to explore the possibilities of long-range forecasts to determine the feasibility of predicting any upcoming two-week windows of opportunity, well in advance, that will ensure the successful completion of constructing the XBR on Shemya. In order to reach this goal, the following objectives were achieved; (1) a climatological …