Digital Commons Network^™

Anthropoid Agents, Michael N. Huhns, Munindar P. Singh

Faculty Publications

In the study of agents on the Internet, we often ascribe to them human qualities, such as beliefs and intentions. These qualities are best understood as metaphors that give developers a way to talk about and design the capabilities and applications of agents. Despite all the progress in computing, users have been slow to accept the technology. They have often accepted what was thrown at them, but only under economic duress. Bringing the technology closer to their emotional needs might ease this resistance. So how can we put a human face on computing? Maybe by putting an animated face on …

Primo Levi And Bruno Piazza: Auschwitz In Italian Literature, Ilona Klein

Faculty Publications

To focus on the literature of the Shoah more than 50 years later and 7,000 miles away inevitably creates some sense of dissociation due to both historical and geographic distance. While on the one hand, an analysis of the literature of the genocide might grant further insights through a retrospective look, on the other, however, this distance of time and space risks leading to an oversimplification of the Shoah, in the sense that the plight of the Jews, their individual stories and the overwhelming sense of emptiness caused by the depletion of the intellectual Jewish cultural communities in Europe might …

Hearsay: Traps & Problem Issues, Paul C. Giannelli

Faculty Publications

No abstract provided.

Reflections On Britain's Research Assessment Exercise, Jayne W. Barnard

Faculty Publications

No abstract provided.

The Evolution Of Health Care Decision Making: The Political Paradigm And Beyond, Elizabeth Price Foley, Elizabeth C. Price

Faculty Publications

The ascendancy of the political paradigm as the primary mode of health care decision-making is a natural evolutionary reaction to the unrestrained market paradigm. Although a certain of political intrusion into the health care marketplace is both necessary and useful, it has the potential to unravel the efficiencies achieved by managed care. Overzealous intervention in the health care market in the name of "reform" may cause the health care decision-making pendulum to swing back to the provider paradigm, with its tendency to escalate health care costs and diminish access. One possible way to achieve decision-making equilibrium and and end the …

Constructing A Partnership With The Community: Distance Education, Ronnie G. Bankston

Faculty Publications

The Department of Communication Studies at the University of Northern Iowa has made a commitment to establish and maintain partnerships with its Iowa Communications Network (ICN) based learning communities and with the institutions of higher education throughout the state that facilitate the delivery of experiential learning to students. In January 1997; graduate student enrollment doubled when the department began offering programs in Communication Education and Public Relations over the ICN. The program has moved from a top-down pedagogical model to the creation of a partnership with its learning community. Students in the ICN Communication Education program must successfully complete a …

An Investigation Of The Amount Of Emphasis Placed On Content And Delivery By Instructors Of Public Speaking, Paul J. Siddens Iii

Faculty Publications

A study examined how much emphasis instructors of public speaking place on content and delivery when teaching and delivering oral and written critiques. The study sought to determine whether when teaching a hybrid introduction to communication course; or public speaking course; instructors are challenged with teaching their students about issues related to the content of the speech; such as the introduction and conclusion; organization; supporting evidence; and issues related to physical and vocal delivery such as appearance; gestures; eye contact; volume; rate; and vocal variety. This was a pilot study to test the research questions; survey instrument; and methodology used …

Characterization Of Sol-Gel-Derived Cobalt Oxide Xerogels As Electrochemical Capacitors, Chuan Lin, James A. Ritter, Branko N. Popov

Faculty Publications

Very fine cobalt oxide xerogel powders were prepared using a unique solution chemistry associated with the sol-gel process. The effect of thermal treatment on the surface area, pore volume, crystallinity, particle structure, and corresponding electrochemical properties of the resulting xerogels was investigated and found to have significant effects on all of these properties. The xerogel remained amorphous as Co(OH)₂ up to 160°C, and exhibited maxima in both the surface area and pore volume at this temperature. With an increase in the temperature above 200°C, both the surface area and pore volume decreased sharply, because the amorphous Co(OH)₂ decomposed …

A Nonisothermal Nickel‐Hydrogen Cell Model, Pauline De Vidts, Javier Delgado, B. Wu, D. M. See, K. Kosanovich, Ralph E. White

Faculty Publications

No abstract provided.

Bureaucracy In The Postmodern World: Problems And Solutions, Paul C. Godfrey, Grant C. Madsen

Faculty Publications

This paper considers the problems presented by modern bureaucratic organizations within the framework of postmodern philosophy. Bureaucracy represents the logical outcome of the rational tradition in western philosophy. Because of their efficiency properties, individuals are both the beneficiaries and victims of bureaucratic behavior. We suggest that a solution to these problems will not be found by using existing philosophical frameworks. The French philosopher Jean-Francois Lyotard presents a model of postmodern relationships based on language games. We explore the concept of language games within bureaucratic settings.

The Use Of Criminal Statutes To Regulate Financial Markets In The United States, Paul Marcus

Faculty Publications

No abstract provided.

The Battle That Never Was: Congress, The White House, And Agency Litigation Authority, Neal Devins, Michael Herz

Faculty Publications

No abstract provided.

Foreword: Government Lawyering, Neal Devins

Faculty Publications

No abstract provided.

“Are We Doing Multicultural Education Yet?” Review Article Of Timothy’S Reagan’S Non-Western Educational Traditions, Rosemary C. Henze

Faculty Publications

No abstract provided.

How Judges View Civil Juries, Paula Hannaford-Agor, B. Michael Dann, G. Thomas Munsterman

Faculty Publications

In any given case, the judge's view of the jury may mani­fest itself as a complex and subtle mixture of respect, gratitude, con­cern, pride, impatience, and even frustration. But more revealing than what judges say about juries is what judges do to prepare jurors for their roles in civil cases. This paper explores the various indicators of judges' views of the civil jury, including the social and institutional factors and contemporary jury reform efforts that affect judges' views about the civil jury.

This abstract has been taken from the authors' introduction.

Debtor Incentives, Agency Costs And Voting Theory In Chapter 11, Scott F. Norberg

Faculty Publications

No abstract provided.

Does The Fda Have Authority To Regulate Human Cloning?, Elizabeth Price Foley, Elizabeth C. Price

Faculty Publications

Examines the FDA's statutory authority to regulate human cloning.

What’S Good For General Motors: Corporate Speech And The Theory Of Free Expression, Howard M. Wasserman

Faculty Publications

No abstract provided.

Approximations Of Open Quotient And Speed Quotient From Glottal Airflow And Egg Waveforms: Effects Of Measurement Criteria And Sound Pressure Level, Christopher Dromey, Christine M. Sapienza, Elaine T. Stathopoulos

Faculty Publications

Summary: Noninvasive measures of vocal fold activity are useful for describing normal and disordered voice production. Measures of open and speed quotient from glottal airflow and electroglottographic (EGG) waveforms have been used to describe timing events associated with vocal fold vibration. To date, there has been little consistency in the measurement criteria used to calculate quotient values. In this study, criteria of 20% and 50% were applied to the AC amplitude of glottal airflow and inverted EGG waveforms for measurement of open quotient. Criteria of 20%, 50%, and 80%, and a midslope criterion that segmented the waveform between 20% and …

Measurement Of The He Ground State Lamb Shift Via The Two-Photon 1 1S-2 1S Transition, Scott D. Bergeson, A. Balakrishnan, K. G. H. Baldwin, T. B. Lucatorto, J. P. Marangos, T. J. Mcilrath, T. T. O'Brian, S. L. Rolston, C. J. Sansonetti, Jesse Wen, N. Westbrook, C. H. Cheng, E. E. Eyler

Faculty Publications

We have extended two-photon Doppler-free spectroscopy to the vacuum ultraviolet spectral region, to accurately measure the He 1¹S-2¹S transition at 120 nm. Our result is 4984872315(48) MHz. This yields a ground state Lamb shift of 41104(48) MHz, in fair agreement with theory and other experiments. This approach has the potential for significantly better accuracy once improvements in the laser and the wavelength metrology are implemented.

The Orientation Toward Domestic Labor Questionnaire: Exploring Dual-Earner Wives' Sense Of Fairness About Family Work, Alan J. Hawkins, Christina M. Marshall, Sarah M. Allen

Faculty Publications

This study explored the psychometric properties of the Orientation Toward Domestic Labor Questionnaire (ODL-Q) with a sample of 622 dual-earner wives. Adequate internal consistency reliability was obtained for most of the construct in the ODL-Q. In addition, construct validity for the ODL-Q was provided with multiple regression and discriminant analyses of the constructs' relationships to wives' sense of fairness about family work. The ODL-Q scales accounted for 57% of the variance in wives' sense of fairness. Effective communication about domestic labor (expressions of appreciation, sympathetic listening, mutual decision making) was by far the most powerful predictor and discriminator of fairness. …

Sr‐ And Ni‐Doped Lacoo3 And Lafeo3 Perovskites: New Cathode Materials For Solid‐Oxide Fuel Cells, Kevin Huang, Hee Y. Lee, John B. Goodenough

Faculty Publications

An improved cathode material for a solid‐oxide fuel cell would be a mixed electronic and oxide‐ion conductor with a good catalytic activity for oxygen reduction at an operating temperature T _op ≥ 700°C and a thermal expansion matched to that of the electrolyte and interconnect. We report on the properties of Sr‐ and Ni‐doped LaCoO₃ and LaFeO₃ perovskites that meet these criteria. Single‐phase regions were determined by X‐ray diffraction, and thermogravimetric analysis measurements were used to obtain the temperatures above which oxygen loss, and hence oxide‐ion conductivity, occurs. The conductivity and Seebeck measurements indicate the coexistence of both …

Dijet Cross Sections In Photoproduction At Hera, J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, Margarita C. K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti

Faculty Publications

Dijet cross sections are presented using photoproduction data obtained with the ZEUS detector during 1994. These measurements represent an extension of previous results, as the higher statistics allow cross sections to be measured at higher jet transverse energy (ETjet). Jets are identified in the hadronic final state using three different algorithms, and the cross sections compared to complete next-to-leading order QCD calculations. Agreement with these calculations is seen for the pseudorapidity dependence of the direct photon events with ETjet > 6 GeV and of the resolved photon events with ETjet > 11 GeV. Calculated cross sections for resolved photon processes with 6 …

Measurement Of Jet Shapes In Photoproduction At Hera, J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, Margarita C. K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti

Faculty Publications

The shape of jets produced in quasi-real photon-proton collisions at centre-of-mass energies in the range 134-277 GeV has been measured using the hadronic energy flow. The measurement was done with the ZEUS detector at HERA. Jets are identified using a cone algorithm in the η - φ plane with a cone radius of one unit. Measured jet shapes both in inclusive jet and dijet production with transverse energies EjetT > 14 GeV are presented. The jet shape broadens as the jet pseudorapidity (ηjet) increases and narrows as EjetT increases. In dijet photoproduction, the jet shapes have been measured separately for samples …

Measurement Of The T Distribution In Diffractive Photoproduction At Hera, J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, Margarita C. K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, I. Gialas, P. Giusti, G. Iacobucci

Faculty Publications

Photon diffractive dissociation, γp → Xp, has been studied at HERA with the ZEUS detector using ep interactions where the virtuality Q2 of the exchanged photon is smaller than 0.02 GeV2. The squared four-momentum t exchanged at the proton vertex was determined in the range 0.073 < \t\ < 0.40 GeV2 by measuring the scattered proton in the ZEUS Leading Proton Spectrometer. In the photonproton centre-of-mass energy interval 176 < W < 225 GeV and for masses of the dissociated photon system 4 < Mx < 32 GeV, the t distribution has an exponential shape, dN/d\t\ ∝ exp (-b\t\), with a slope parameter b = 6.8 ± 0.9 (stat.) +1.2-1.1 (syst.) GeV-2.

Resurrecting The Dodo: The Unfortunate Re-Emergence Of The Puffery Defense In Private Securities Actions, Jennifer O'Hare

Faculty Publications

The conventional wisdom is that the puffery defense is inapplicable in securities regulation. However, appellate courts in almost every federal circuit have recently used the puffery defense to dismiss private securities fraud actions that were based on vague statements of corporate optimism. This Article demonstrates that the courts have misused the puffery defense and have improperly insulated companies from liability for their misrepresentations. It contends that the assumptions justifying the use of the puffery defense are not present in securities transactions and that the federal securities laws have expressly rejected the very doctrine underlying the puffery defense-caveat emptor. Arguing that …

Labor Law Obstacles To The Collective Negotiation And Implementation Of Employee Stock Ownership Plans: A Response To Henry Hansmann And Other "Survivalists", Jeffrey M. Hirsch

Faculty Publications

No abstract provided.

Measurement Of The Diffractive Structure Function FD(4)2 At Hera, J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, Margarita C. K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, I. Gialas, P. Giusti, G. Iacobucci

Faculty Publications

This paper presents the first analysis of diffractive photon dissociation events in deep inelastic positron-proton scattering at HERA in which the proton in the final state is detected and its momentum measured. The events are selected by requiring a scattered proton in the ZEUS leading proton spectrometer (LPS) with xL > 0.97, where xL is the fraction of the incoming proton beam momentum carried by the scattered proton. The use of the LPS significantly reduces the contamination from events with diffractive dissociation of the proton into low mass states and allows a direct measurement of t, the square of the four-momentum …

Charged Particles And Neutral Kaons In Photoproduced Jets At Hera, J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, Margarita C. K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti

Faculty Publications

Charged particles (h±) and K0 mesons have been studied in photoproduced events containing at least one jet of ET > 8 GeV n a pseudorapidity interval (-0.5, 0.5) in the ZEUS laboratory frame. Distributions are presented in terms of transverse momentum, pseudorapidity and distance of the particle from the axis of a jet. The properties of h± within the jet are described well using the standard settings of PYTHIA, but the use of the multiparton interaction option improves the description outside the jets.

Elastic And Proton-Dissociative Ρ0 Photoproduction At Hera, J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, Margarita C. K. Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, I. Gialas, P. Giusti, G. Iacobucci

Faculty Publications

Elastic and proton-dissociative ρ0 photoproduction (γp → p0p, γp → ρ0N, respectively, with p0 → π+π-) has been studied in ep interactions at HERA for photon-proton centre-of-mass energies in the range 50 < W < 100 GeV and for |t| < 0.5 GeV2, where t is the square of the four-momentum transfer at the proton vertex; the results on the proton-dissociative reaction are presented for masses of the dissociated proton system in the range M2N < 0.1W2. For the elastic process, the π+π- invariant mass spectrum has been investigated as a function of t. As in fixed target experiments, the ρ0 resonance shape is asymmetric; this asymmetry decreases with increasing |t|, as expected in models in which the asymmetry is ascribed to the interference of resonant and non-resonant π+π- production. The cross section has been studied as a function of W; a fit to the resonant part with the form Wa gives a = 0.16 ± 0.06 (stat.) +0.11-0.15 (syst.). The resonant part of the γp → π+π-p cross section is 11.2 ± 0.1 (stat.) +1.1-1.2 (syst.) μb at 〈W〉 = 71.7 GeV. The t dependence of the cross section can be described by a function of the type Aρ exp (-bρ|t| + cρt2) with bρ = 10.9 ± 0.3 (stat.) +1.0-0.5 (syst.) GeV-2 and cρ = 2.7 ± 0.9 (stat.) +1.9-1.7 (syst.) GeV-4. The t dependence has also been studied as a function of W and a value of the slope of the pomeron trajectory α IP′ = 0.23 ± 0.15 (stat.) +0.10-0.07 (syst.) GeV-2 has been deduced. The ρ0 spin density matrix elements r0400 r041-1 and ℜe[r0410] have been measured and found to be consistent with expectations based on s-channel helicity conservation. For proton-dissociative π+π- photoproduction in the ρ0 mass range, the distributions of the two-pion invariant mass, W and the polar and azimuthal angles of the pions in the helicity frame are the same within errors as those for the elastic process. The t distribution has been fitted to an exponential function with a slope parameter 5.8 ± 0.3 (stat.) ± 0.5 (syst.) GeV-2. The ratio of the elastic to proton-dissociative ρ0 photoproduction cross section is 2.0 ± 0.2 (stat.) ± 0.7 (syst.).