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Civil Society And Congregations As Public Moral Companions, Gary M. Simpson Oct 1995

Civil Society And Congregations As Public Moral Companions, Gary M. Simpson

Faculty Publications

In the midst of this morally charged situation might not Christian congregations hear again the call to a public vocation? As we ponder this prospect, two questions will guide our inquiry. First, where might Christian congregations locate a space in which they might attend to the public moral meaning of everyday rage? That public space, which we will explore, is “civil society.” Second, how can this public space of civil society be accessed so that its moral possibilities can be maximized? We will explore “communicative moral practice” as the best model for accessing the moral possibilities of civil society. What …

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The Limits Of Quantitative Legal Analyses: Chaos In Legal Scholarship And Fdic V. W.R. Grace & Co., Royce De R. Barondes Oct 1995

The Limits Of Quantitative Legal Analyses: Chaos In Legal Scholarship And Fdic V. W.R. Grace & Co., Royce De R. Barondes

Faculty Publications

This Article identifies a few of those techniques by examining a number of quasi-quantitative legal analyses that have addressed a range of legal relationships. The methodology of this Article consists of reviewing the relationship between those legal analyses and their associated non-legal disciplines. The unifying theme of the discussed examples is that a useful, well constructed quantitative analysis or approach has been improperly extended into a legal context.

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Dean John Wade And The Law Of Torts, Gary Myers Oct 1995

Dean John Wade And The Law Of Torts, Gary Myers

Faculty Publications

Dean John Wade's death last year ends the career of a great scholar, teacher, and administrator. His many accomplishments and his impressive personal traits have been duly praised and chronicled. His legacy includes an impressive body of scholarly work, many former students trained in the ways of the law, and institutions that are better for his walking their hallways. This article focuses on one particular aspect of Dean Wade's contribution--his impact on the law of torts.

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The Criminal Defense Lawyer As Effective Negotiator: A Systemic Approach, Rodney J. Uphoff Oct 1995

The Criminal Defense Lawyer As Effective Negotiator: A Systemic Approach, Rodney J. Uphoff

Faculty Publications

In the first issue of the Clinical Law Review, Peter Hoffman challenged clinical legal educators to produce clinical scholarship that is “practical in its orientation and design” and written so as to enhance the ability of lawyers to represent their clients and to help law students prepare for law practice. This article takes up Hoffman's challenge in the context of examining the skill of negotiating or plea bargaining from the perspective of the criminal defense lawyer. Before discussing the methods, approach or techniques that lawyers can use to enhance their ability to bargain effectively, it is critical to understand what …

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Remark: Brown V. Board: Revisited, Michael A. Middleton Oct 1995

Remark: Brown V. Board: Revisited, Michael A. Middleton

Faculty Publications

[T]he Negro needs neither segregated schools nor mixed schools. What he needs is Education. What he must remember is that there is no magic, either in mixed schools or in segregated schools. A mixed school with poor and unsympathetic teachers, with hostile public opinion, and no teaching of truth concerning black folk, is bad. A segregated school with ignorant placeholders, inadequate equipment, poor salaries, and wretched housing, is equally bad. Other things being equal, the mixed school is the broader, more natural basis for the education of all youth. It gives wider contacts; it inspires greater self-confidence; and suppresses the …

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An Historical Critique Of The Emergence And Evolution Of Ernesto Che Guevara's Foco Theory, Matt D. Childs Oct 1995

An Historical Critique Of The Emergence And Evolution Of Ernesto Che Guevara's Foco Theory, Matt D. Childs

Faculty Publications

This article provides an analysis of Ernesto Che Guevara's theory of guerrilla warfare, the foco. The numerous changes to the originalfoco thesis, as presented in Guerrilla Warfare (1960), are examined in detail covering two dozen articles, speeches, essays, interviews and books authored by Guevara, Castro and Debray while stressing their relation to national and international politics. The author argues that there was an apparent discourse between Cuban politics and the numerous changes in Guevara's writings. Juxtaposing changes to the foco theory from 1960 to 1967, to Cuban historical events, reflects the political expedience of the 196os and the primary …

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Assessing Fundamental Power Differences In Exchange Networks: Iterative Gpi, Michael J. Lovaglia, John Skvoretz, Barry N. Markovsky, David Willer Oct 1995

Assessing Fundamental Power Differences In Exchange Networks: Iterative Gpi, Michael J. Lovaglia, John Skvoretz, Barry N. Markovsky, David Willer

Faculty Publications

Networks have been discovered for which Network Exchange Theory (NET Markovsky, Willer and Patton 1988; Lovaglia, Skvoretz, Willer and Markovsky 1995) fails to provide tenable predictions. Here we elaborate NET to create a more general method. We show not only when and where exchange networks break into simpler substructures, but propose rules to decisively classify networks and substructures as strong, weak, or equal power. In doing so, we advance general heuristics for power development in exchange networks and demonstrate the promise of an approach using reciprocal comparison of general heuristics, formal theory, and computer simulation.

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An Adaptive Learning Model Which Accommodates Asymmetric Error Costs And Choice-Based Samples, James V. Hansen, James B. Mcdonald, Rayman D. Meservy Oct 1995

An Adaptive Learning Model Which Accommodates Asymmetric Error Costs And Choice-Based Samples, James V. Hansen, James B. Mcdonald, Rayman D. Meservy

Faculty Publications

This paper introduces an adaptive-learning model, EGB2, which optimizes over a parameter space to fit data to a family of models based on maximum-likelihood criteria. We also show how EGB2 can be modified to handle asymmetric costs of Type I and Type II errors, thereby minimizing misclassification costs. It has been shown that standard methods of computing maximum-likelihood estimators of qualitative-response models are generally inconsistent when applied to sample data with different proportions than found in the universe from which the sample is drawn. We investigate how a choice estimator, based on weighting each observation's contribution to the log-likelihood function, …

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A Provably Convergent Dynamic Training Method For Multi-Layer Perceptron Networks, Timothy L. Andersen, Tony R. Martinez Sep 1995

A Provably Convergent Dynamic Training Method For Multi-Layer Perceptron Networks, Timothy L. Andersen, Tony R. Martinez

Faculty Publications

This paper presents a new method for training multi-layer perceptron networks called DMP1 (Dynamic Multilayer Perceptron 1). The method is based upon a divide and conquer approach which builds networks in the form of binary trees, dynamically allocating nodes and layers as needed. The individual nodes of the network are trained using a genetic algorithm. The method is capable of handling real-valued inputs and a proof is given concerning its convergence properties of the basic model. Simulation results show that DMP1 performs favorably in comparison with other learning algorithms.

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Millisecond Pulsars: Detectable Sources Of Continuous Gravitational Waves?, Kimberly C.B. New, G. Chanmugam, Warren W. Johnson, Joel E. Tohline Sep 1995

Millisecond Pulsars: Detectable Sources Of Continuous Gravitational Waves?, Kimberly C.B. New, G. Chanmugam, Warren W. Johnson, Joel E. Tohline

Faculty Publications

Laboratory searches for the detection of gravitational waves have focused on the detection of burst signals emitted during a supernova explosion but have not resulted in any confirmed detections. An alternative approach has been to search for continuous wave (CW) gravitational radiation from the Crab pulsar. In this paper, we examine the possibility of detecting CW gravitational radiation from pulsars and show that nearby millisecond pulsars are generally much better candidates. We show that the minimum strain hc ∼ 10-26 that can be detected by tuning an antenna to the frequency of the millisecond pulsar PSR 1957+20, with the detector …

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Towards A Payments System Law For Developing And Transition Economies, Raj Bhala Sep 1995

Towards A Payments System Law For Developing And Transition Economies, Raj Bhala

Faculty Publications

This paper examines the legal foundations of large-value credit transfer systems and the importance of certainty, efficiency, and fairness in funds transfer law. A case study is presented to highlight key terminology and concepts. Thereafter, five particularly noteworthy legal rules are discussed in the context of the case study: (1) a rule defining the scope of the law; (2) a rule establishing when the rights and obligations of parties to a funds transfer are triggered; (3) a receiver finality rule; (4) a rule assigning liability for interloper fraud; and (5) a money-back guarantee rule, coupled with provisions on discharge. Finally, …

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Exclusive Ρ0 Production In Deep Inelastic Electron-Proton Scattering At Hera, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, H. Zhang, R. Ayad, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, P. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam, R. Nania, C. Nemoz Aug 1995

Exclusive Ρ0 Production In Deep Inelastic Electron-Proton Scattering At Hera, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, H. Zhang, R. Ayad, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, P. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam, R. Nania, C. Nemoz

Faculty Publications

The exclusive production of ρ{variant}0mesons in deep inelastic electron-proton scattering has been studied using the ZEUS detector. Cross sections have been measured in the range 7 < Q2< 25 GeV2for λ*p centre of mass (c.m.) energies 40 to 130 GeV. The λ*p → ρ{variant}0p cross section exhibits a Q-(4.2±0.8-0.5+1.4)dependence and both longitudinally and transversely polarised ρ{variant}0's are observed. The λ*p → ρ{variant}0p cross section rises strongly with increasing c.m. energy, when compared with NMC data at lower energy, which cannot be explained by production through soft pomeron exchange. The data are compared with perturbative QCD calculations where the rise in the cross section reflects the increase in the gluon density at low x. © 1995.

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Diffractive Hard Photoproduction At Hera And Evidence For The Gluon Content Of The Pomeron, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, H. Zhang, R. Ayad, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, P. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam, R. Nania, C. Nemoz Aug 1995

Diffractive Hard Photoproduction At Hera And Evidence For The Gluon Content Of The Pomeron, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, H. Zhang, R. Ayad, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, P. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam, R. Nania, C. Nemoz

Faculty Publications

Inclusive jet cross sections for events with a large rapidity gap with respect to the proton direction from the reaction ep → jet + X with quasi-real photons have been measured with the ZEUS detector. The cross sections refer to jets with transverse energies ETjet> 8 GeV. The data show the characteristics of a diffractive process mediated by pomeron exchange. Assuming that the events are due to the exchange of a pomeron with partonic structure, the quark and gluon content of the pomeron is probed at a scale ∼ (ETjet)2. A comparison of the measurements with model predictions based on …

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Is There A Connection Between No-Hair Behavior And Universality In Gravitational Collapse?, Jorge Pullin Aug 1995

Is There A Connection Between No-Hair Behavior And Universality In Gravitational Collapse?, Jorge Pullin

Faculty Publications

We apply linear perturbation theory to the study of the universality and criticality first observed by Choptuik in gravitational collapse. Since these are essentially nonlinear phenomena our approach provides a rough approximation. In spite of this, universal behavior of the final black hole mass is observed with an exponent only slightly higher than the observed value of 0.367. The universal behavior is based on the unique form that in-falling perturbations on black holes have at the horizon. © 1995.

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An Integrated Framework For Learning And Reasoning, Christophe G. Giraud-Carrier, Tony R. Martinez Aug 1995

An Integrated Framework For Learning And Reasoning, Christophe G. Giraud-Carrier, Tony R. Martinez

Faculty Publications

Learning and reasoning are both aspects of what is considered to be intelligence. Their studies within AI have been separated historically, learning being the topic of machine learning and neural networks, and reasoning falling under classical (or symbolic) AI. However, learning and reasoning are in many ways interdependent. This paper discusses the nature of some of these interdependencies and proposes a general framework called FLARE, that combines inductive learning using prior knowledge together with reasoning in a propositional setting. Several examples that test the framework are presented, including classical induction, many important reasoning protocols and two simple expert systems.

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The Kinetics Of Quantal Transmitter Release From Retinal Amacrine Cells, Salvador Borges, Evanna Gleason, Michael Turelli, Martin Wilson Jul 1995

The Kinetics Of Quantal Transmitter Release From Retinal Amacrine Cells, Salvador Borges, Evanna Gleason, Michael Turelli, Martin Wilson

Faculty Publications

Exocytosis of transmitter at most synapses is a very fast process triggered by the entry of Ca2+ during an action potential. A reasonable expectation is that the fast step of exocytosis is followed by slow steps readying another vesicle for exocytosis but the identity and kinetics of these steps are presently unclear. By voltage clamping both pre- and postsynaptic neurons in an isolated pair of retinal amacrine cells, we have measured evoked synaptic currents and responses to single vesicles of transmitter (minis). From these currents, we have computed the rate of exocytosis during a sustained presynaptic depolarization. We show here …

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Study Of The Photon Remnant In Resolved Photoproduction At Hera, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, H. Zhang, R. Ayad, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, P. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam, R. Nania, C. Nemoz Jul 1995

Study Of The Photon Remnant In Resolved Photoproduction At Hera, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, H. Zhang, R. Ayad, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, P. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam, R. Nania, C. Nemoz

Faculty Publications

Photoproduction at HERA is studied in ep collisions, with the ZEUS detector, for γp centre-of-mass energies ranging from 130-270 GeV. A sample of events with two high-pT jets (pT > 6 GeV, η < 1.6) and a third cluster in the approximate direction of the electron beam is isolated using a clustering algorithm. These events are mostly due to resolved photoproduction. The third cluster is identified as the photon remnant. Its properties, such as the transverse and longitudinal energy flows around the axis of the cluster, are consistent with those commonly attributed to jets, and in particular with those found for the two jets in these events. The mean value of the photon remnant pT with respect to the beam axis is measured to be 2.1 ± 0.2 GeV, which demonstrates substantial mean transverse momenta for the photon remnant. © 1995.

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All We Really Need To Know About Teaching We Learned In Kindergarten, R. Lawrence Dessem Jul 1995

All We Really Need To Know About Teaching We Learned In Kindergarten, R. Lawrence Dessem

Faculty Publications

Being asked to talk recently about teaching to non-law school professors caused me to think about some of the successful techniques I have used or seen used in law school teaching. I was concerned, though, that these techniques might not be transferrable to other teachers in other settings. However, the more I thought about it the more I realized that the techniques we use in teaching law students are comparable to, if not identical with, techniques used by any successful teacher. These are the same techniques we all have seen utilized by our best teachers over our many years of …

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Batse Gamma-Ray Burst Line Search. Iii. Line Detectability, D. L. Band, L. A. Ford, J. L. Matteson, M. S. Briggs, W. S. Paciesas, G. N. Pendleton, R. D. Preece, D. M. Palmer, B. J. Teegarden, B. E. Schaefer Jul 1995

Batse Gamma-Ray Burst Line Search. Iii. Line Detectability, D. L. Band, L. A. Ford, J. L. Matteson, M. S. Briggs, W. S. Paciesas, G. N. Pendleton, R. D. Preece, D. M. Palmer, B. J. Teegarden, B. E. Schaefer

Faculty Publications

We evaluate the ability of the BATSE spectroscopy detectors to detect the absorption lines observed by Ginga in gamma-ray burst spectra. We find that BATSE can detect the 20.6 keV line in the S1 segment of GB 870303 with a detection probability of ∼1/4 in nearly normal incident bursts, with the probability dropping off to nearly 0 at a burst angle of 50°; the lines at 19.4 and 38.8 keV in GB 880205 have a high detection probability in BATSE up to burst angles of 75°. In addition, we calculate detection probabilities for these two line types as a function …

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Critique Of Current Congressional Capital Gains Contentions, John W. Lee Jul 1995

Critique Of Current Congressional Capital Gains Contentions, John W. Lee

Faculty Publications

No abstract provided.

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Effects Of Pairing In The Pseudo-Su(3) Model, D. Troltenier, C. Bahri, J. P. Draayer Jun 1995

Effects Of Pairing In The Pseudo-Su(3) Model, D. Troltenier, C. Bahri, J. P. Draayer

Faculty Publications

An extended version of the pseudo-SU(3) model which includes both spin and proton-neutron degrees of freedom is used to study the influence of the pairing interaction on K-band mixing, B(E2) values and quadrupole moments. Using the asymmetric rotor model as a backdrop, specific consequences of a many-particle shell-model based description of these collective properties are demonstrated and fundamental limits of the collective model's approach are investigated. Finally, the pseudo-SU(3) model, including representation mixing induced by pairing, is used to calculate the energies of 140Ce and the results are compared to experimental data and other theories. © 1995.

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Local Initiation Of Spermatogenesis In The Horse, A. J. Clemmons, D. L. Thompson, L. Johnson Jun 1995

Local Initiation Of Spermatogenesis In The Horse, A. J. Clemmons, D. L. Thompson, L. Johnson

Faculty Publications

Gross observation of testicular parenchyma of 1.5 to 2-yr-old horses reveals both light and dark regions. If this gross, differential shading reflects quantitative differences in the development of spermatogenesis and interstitial cell populations, the horse may prove to be a useful model for study of the paracrine relationships associated with initiation of spermatogenesis. The objective of this study was to characterize seminiferous tubules and interstitium of testes with gross, differential shading. Testes with both light and dark regions of parenchyma were obtained from horses 1.5- 2 yr old and compared to parenchyma of fetal, 2-yr old, or 5-yr-old horses. Stereology …

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Inclusive Transverse Momentum Distributions Of Charged Particles In Diffractive And Non-Diffractive Photoproduction At Hera, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, H. Zhang, R. Ayad, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, P. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam, R. Nania, C. Nemoz Jun 1995

Inclusive Transverse Momentum Distributions Of Charged Particles In Diffractive And Non-Diffractive Photoproduction At Hera, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, H. Zhang, R. Ayad, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, P. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam, R. Nania, C. Nemoz

Faculty Publications

Inclusive transverse momentum spectra of charged particles in photoproduction events in the laboratory pseudorapidity range -1.2<η<1.4 have been measured up to pT=8 GeV usign the ZEUS detector. Diffractive and non-diffractive reactions have been selected with an average γp centre of mass (c.m.) energy of 〈W〉=180 GeV. For diffractive reactions, the pT spectra of the photon dissociation events have been measured in two intervals of the dissociated photon mass with mean values 〈MX〉=5 GeV and 10 GeV. The inclusive transverse momentum spectra fall exponentially in the low pT region. The non-diffractive data show a pronounced high pT tail departing from the exponential shape. The pT distributions are compared to lower energy photoproduction data and to hadron-hadron collisions at a similar c.m. energy. The data are also compared to the results of a next-to-leading order QCD calculation. © 1995 Springer-Verlag.

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Empire And Social-Reform, British Liberals And The Civilizing Mission In The Sugar Colonies, 1868-1874, James Patterson Smith Jun 1995

Empire And Social-Reform, British Liberals And The Civilizing Mission In The Sugar Colonies, 1868-1874, James Patterson Smith

Faculty Publications

No abstract provided.

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Hodographs And Normals Of Rational Curves And Surfaces, Thomas W. Sederberg, Takafumi Saito, Guo-Jin Wang Jun 1995

Hodographs And Normals Of Rational Curves And Surfaces, Thomas W. Sederberg, Takafumi Saito, Guo-Jin Wang

Faculty Publications

Derivatives and normals of rational Bézier curves and surface patches are discussed. A non-uniformly scaled hodograph of a degree m x n tensor-product rational surface, which provides correct derivative direction but not magnitude, can be written as a degree (2m - 2) x 2n or 2m x (2n - 2) vector function in polynomial Bézier form. Likewise, the scaled normal direction is degree (3m - 2) x(3n - 2). Efficient methods are developed for bounding these directions and the derivative magnitude.

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On Primitive Bch Codes With Unequal Error Protection Capabilities, Robert H. Morelos-Zaragoza, Shu Lin May 1995

On Primitive Bch Codes With Unequal Error Protection Capabilities, Robert H. Morelos-Zaragoza, Shu Lin

Faculty Publications

Presents a class of binary primitive BCH codes that have unequal-error-protection (UEP) capabilities. The authors use a previous result on the span of their minimum weight vectors to show that binary primitive BCH codes, containing second-order punctured Reed-Muller (RM) codes of the same minimum distance, are binary-cyclic UEP codes. The values of the error correction levels for this class of binary LUEP codes are estimated.

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Study Of D* (2010)± Production In Ep Collisions At Hera, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, H. Zhang, R. Ayad, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, P. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam, R. Nania, C. Nemoz Apr 1995

Study Of D* (2010)± Production In Ep Collisions At Hera, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, H. Zhang, R. Ayad, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, P. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam, R. Nania, C. Nemoz

Faculty Publications

We report the first observation of charmed mesons with the ZEUS detector at HERA using the decay channel D*+ → (D0 → K-π+)π+ (+c.c.). Clear signals in the mass difference ΔM=M(D*)-M(D0) as well as in the M(Kπ) distribution at the D0 mass are found. The ep cross section for inclusive D*± production with Q2 < 4 GeV2 in the γp centre-of-mass energy range 115 < W < 275 GeV has been determined to be (32±7-7+4) nb in the kinematic region pt(D*) ≥ 1.7 GeV, |η(D*)| < 1.5. Extrapolating outside this region, assuming a mass of the charm quark of 1.5 GeV, we estimate the ep charm cross section to be σ(ep → ccX) = (0.45 ± 0.11-0.22+0.37) μb at s=296 GeV and 〈W〉 = 198 GeV. The average γp charm cross section σ(γp → ccX) is found to be (6.3 ± 2.2-3.0+6.3) μb at 〈W〉 = 163 GeV and (16.9 ± 5.2-8.5+13.9) μb at 〈W〉 = 243 GeV. The increase of the total charm photoproduction cross section by one order of magnitude with respect to low energy data experiments is well described by QCD NLO calculations using singular gluon distributions in the proton. © 1995.

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Dijet Cross Sections In Photoproduction At Hera, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, H. Zhang, R. Ayad, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, P. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam, R. Nania, C. Nemoz Apr 1995

Dijet Cross Sections In Photoproduction At Hera, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, H. Zhang, R. Ayad, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, P. Bruni, G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam, R. Nania, C. Nemoz

Faculty Publications

Dijet production by almost real photons has been studied at HERA with the ZEUS detector. Jets have been identified using the cone algorithm. A cut on xγOBS, the fraction of the photon energy participating in the production of the two jets of highest transverse energy, is used to define cross sections sensitive to the parton distributions in the proton and in the photon. The dependence of the dijet cross sections on pseudorapidity has been measured for xγOBS ≥ 0.75 and xγOBS < 0.75. The former is sensitive to the gluon momentum density in the proton. The latter is sensitive to the ginon in the photon. The cross sections are corrected for detector acceptance and compared to leading order QCD calculations. © 1995.

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Generalized Pseudo-Su(3) Model And Pairing, D. Troltenier, C. Bahri, J. P. Draayer Apr 1995

Generalized Pseudo-Su(3) Model And Pairing, D. Troltenier, C. Bahri, J. P. Draayer

Faculty Publications

The pseudo-SU(3) model is extended to explicitly include the spin and proton-neutron degrees of freedom. A general formalism for evaluating matrix elements of one-body and two-body tensor operators within this framework is presented. The pairing interaction, which couples different irreducible representations of SU(3), is expressed in terms of pseudo-space tensors and a general result is given for calculating its matrix elements. The importance of pairing correlations in pseudo-SU(3) model calculations is demonstrated by examining the dependence of wavefunctions, low-energy collective excitation spectra, and moments of inertia on the strength of the pairing interaction. © 1995.

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Outpatient Civil Commitment In North Carolina: Constitutional And Policy Concerns, Erika Lietzan Apr 1995

Outpatient Civil Commitment In North Carolina: Constitutional And Policy Concerns, Erika Lietzan

Faculty Publications

This article examines preventive outpatient commitment, which targets those not ill or dangerous enough to be committed to inpatient facilities under state commitment laws. After discussing the history and design of the NC scheme, it explores constitutional and practical difficulties. Ultimately, it argues that individualized case management through local mental health clinics is the more effective and humane way of serving the interests of both the individual and the state.

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