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East Greenland Margin, H. C. Larsen, A. D. Saunders, P. Clift Jan 1993

East Greenland Margin, H. C. Larsen, A. D. Saunders, P. Clift

Faculty Publications

Leg 152 represents the second in an eight-leg program, proposed by the NARM-DPG, to investigate rifted margins. Four legs will be devoted to each margin type, volcanic and nonvolcanic. Leg 152, selected as first priority by the North Atlantic Rifted Margin Detailed Planning Group (NARM-DPG), will be the first leg to address processes at volcanic rifted margins by drilling a transect of proposed sites at 63°N, southeast Greenland. The southeast Greenland transect is located approximately 550 km south of the original center of the Iceland hotspot in a region of apparent structural simplicity, with a well-understood, simple plate kinematic history. …

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Civil Justice Reform Act Advisory Group Report For The District Of South Dakota, David Day Jan 1993

Civil Justice Reform Act Advisory Group Report For The District Of South Dakota, David Day

Faculty Publications

No abstract provided.

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The Pressure Of Precedent: A Critique Of The Conservative Approaches To Stare Decisis In Abortion Cases, Michael J. Gerhardt Jan 1993

The Pressure Of Precedent: A Critique Of The Conservative Approaches To Stare Decisis In Abortion Cases, Michael J. Gerhardt

Faculty Publications

No abstract provided.

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Innumeracy And Jurisprudence: The Surprising Difficulty Of Counting Petition Signatures, Jonathan L. Entin Jan 1993

Innumeracy And Jurisprudence: The Surprising Difficulty Of Counting Petition Signatures, Jonathan L. Entin

Faculty Publications

No abstract provided.

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What's New In Intellectual Property - Business Is Booming In Copyright, Trademark And Patent Law, Richard C. Reuben Jan 1993

What's New In Intellectual Property - Business Is Booming In Copyright, Trademark And Patent Law, Richard C. Reuben

Faculty Publications

Forget the trendy law practice areas of the 1980s, such as mergers and acquisitions, real estate and antitrust. Intellectual property is where the action will be in the 1990s.

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Surface Treatment For Mitigation Of Hydrogen Absorption And Penetration Into Aisi 4340 Steel, G. Zheng, Branko N. Popov, Ralph E. White Jan 1993

Surface Treatment For Mitigation Of Hydrogen Absorption And Penetration Into Aisi 4340 Steel, G. Zheng, Branko N. Popov, Ralph E. White

Faculty Publications

The effectiveness of underpotential deposition of Pb onto a membrane made of AISI 4340 steel on the reduction of the hydrogen evolution reaction on the membrane and the degree of hydrogen ingress into the membrane was determined. In the presence of a monolayer coverage of Pb on the membrane surface, the hydrogen evolution currents were reduced by a factor of two compared with the values obtained on bare steel, and the steady-state hydrogen permeation flux through the steel membranes was reduced by 71%.

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Impedance Spectroscopy As A Nondestructive Health Interrogation Tool For Lithium-Bcx Cells, Branko N. Popov, W. Zhang, E. C. Darcy, Ralph E. White Jan 1993

Impedance Spectroscopy As A Nondestructive Health Interrogation Tool For Lithium-Bcx Cells, Branko N. Popov, W. Zhang, E. C. Darcy, Ralph E. White

Faculty Publications

The objective of this investigation was to study the growth of thick passivating layers on the Li anode in Li/BCX(Li/SOCl2 + BrCl) cells which were stored for a period of 3 years. Impedance spectroscopy and equivalent circuit models were used to determine characterizing parameters for these cells. The equivalent circuit used for virgin cells includes a faradic contribution and diffusion of the electroactive species. The equivalent circuit for batteries stored 1 or 2 years includes the impedance of a metal/passive film interface, the resistance of the film, and the impedance of the passivating film/electrolyte interface. The equivalent circuit used …

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Using Electrochemical Impedance Spectroscopy As A Tool For Organic Coating Solute Saturation Monitoring, Branko N. Popov, Mohammed A. Alwohaibi, Ralph E. White Jan 1993

Using Electrochemical Impedance Spectroscopy As A Tool For Organic Coating Solute Saturation Monitoring, Branko N. Popov, Mohammed A. Alwohaibi, Ralph E. White

Faculty Publications

Electrochemical impedance spectroscopy (EIS) has been used to study the solute uptake for epoxy/phenolic (E/p) andepoxy/amine (E/a) thick-coated mild steel samples immersed for 160 days in 3.5 weight percent NaCl solution exposed to air. Samples with thicknesses of approximately 200 µm with an exposed surface area of 22.6 cm2 were used to follow solute saturation of the organic coating. Good agreement was obtained between the calculated and measured coating capacitance when, according to the diffusion equation, the coating capacitance was plotted against exposure time.

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Galvanostatic Pulse And Pulse Reverse Plating Of Nickel-Iron Alloys From Electrolytes Containing Organic Compounds On A Rotating Disk Electrode, Branko N. Popov, Ken-Ming Yin, Ralph E. White Jan 1993

Galvanostatic Pulse And Pulse Reverse Plating Of Nickel-Iron Alloys From Electrolytes Containing Organic Compounds On A Rotating Disk Electrode, Branko N. Popov, Ken-Ming Yin, Ralph E. White

Faculty Publications

Linear sweep voltammetry, galvanostatic pulse, and pulse reverse techniques were used to study the plating of nickel-iron alloys in the presence of organic additives. The effects of pulse current densities, ip, reverse current densities, ir, rotation speed of disk electrode, and the presence of organic additives on deposition of nickel-iron alloys are evaluated. The observed phenomena can be explained by the concentration depletion of reactants (or products), and the surface coverage of the additives on the electrode. A new formulation of the plating bath is defined.

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Impedance Analysis For Oxygen Reduction In A Lithium Carbonate Melt: Effects Of Partial Pressure Of Carbon Dioxide And Temperature, Bhasker B. Dave, Ralph E. White, Supramaniam Srinivasan, A. John Appleby Jan 1993

Impedance Analysis For Oxygen Reduction In A Lithium Carbonate Melt: Effects Of Partial Pressure Of Carbon Dioxide And Temperature, Bhasker B. Dave, Ralph E. White, Supramaniam Srinivasan, A. John Appleby

Faculty Publications

Effects of partial pressure of carbon dioxide and temperature on oxygen reduction kinetics on a gold electrode in a lithium carbonate melt were examined using electrochemical impedance spectroscopic (EIS) and linear sweep voltammetric techniques. The impedance spectra were analyzed by a complex nonlinear least squares method, using the Randles-Ershler equivalent circuit model, to determine the electrode-kinetic and the mass-transfer parameters such as the charge-transfer resistance and the Warburg coefficient. The cyclic voltammetric measurements indicated that the oxygen reduction process in lithium carbonate melt is "reversible" up to 200 mV/s. The product DC0 determined by cyclic voltammetry agreed well …

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Thermal Analysis Of Spirally Wound Li/Bcx And Li/Socl2 Cells, E. E. Kalu, Ralph E. White Jan 1993

Thermal Analysis Of Spirally Wound Li/Bcx And Li/Socl2 Cells, E. E. Kalu, Ralph E. White

Faculty Publications

A thermal analysis of Li/BCX and high rate Li/SOCl2 cells is presented. The thermal model developed was used to study the effect of ambient temperature of discharge (0–40°C) on Li/BCX cells discharged at the same rate. The model predictions show that ambient temperature of discharge was critical in thermal management of the cell. For forced convection cooled cells, the model predicted that ambient temperature near room temperature (25°C) was required to achieve the lowest maximum temperature rise in the cell. Inclusion of the effects of reaction products to the model predictions showed that a constant composition assumption may be …

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Reflections On The Jeffersonian Ideal Of An Agrarian Democracy And The Emergence Of An Agricultural And Environmental Ethic In The 1990 Farm Bill, Linda A. Malone Jan 1993

Reflections On The Jeffersonian Ideal Of An Agrarian Democracy And The Emergence Of An Agricultural And Environmental Ethic In The 1990 Farm Bill, Linda A. Malone

Faculty Publications

No abstract provided.

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Attitudinal Barriers To Hiring Attorneys With Disabilities, Michael Ashley Stein Jan 1993

Attitudinal Barriers To Hiring Attorneys With Disabilities, Michael Ashley Stein

Faculty Publications

No abstract provided.

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Postsynaptic Ca2+, But Not Cumulative Depolarization, Is Necessary For The Induction Of Associative Plasticity In Hermissenda, Ronald F. Rogers, R. F. Matzel Jan 1993

Postsynaptic Ca2+, But Not Cumulative Depolarization, Is Necessary For The Induction Of Associative Plasticity In Hermissenda, Ronald F. Rogers, R. F. Matzel

Faculty Publications

The neuronal modifications that underlie associative memory in Hermissenda have their origins in a synaptic interaction between the visual and vestibular systems, and can be mimicked by contiguous in vitro stimulation of these converging pathways. At the offset of vestibular stimulation (i.e., hair cell activity), the B photoreceptors are briefly released from synaptic inhibition resulting in a slight depolarization (2–4 mV). If contiguous pairings of light-induced depolarization and presynaptic vestibular activity occur in close temporal succession, this depolarization “accumulates” and has been hypothesized to culminate in a sustained rise in intracellular Ca2+ and a resultant Ca(2+)-mediated phosphorylation of K+ channels …

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Radiative Lifetimes, Branching Ratios, And Absolute Transition Probabilities In Cr Ii And Zn Ii, Scott D. Bergeson, J. E. Lawler Jan 1993

Radiative Lifetimes, Branching Ratios, And Absolute Transition Probabilities In Cr Ii And Zn Ii, Scott D. Bergeson, J. E. Lawler

Faculty Publications

New absolute atomic transition probability measurements are reported for 12 transitions in Cr II and two transitions in Zn II. These transition probabilities are determined by combining branching ratios measured by classical techniques and radiative lifetimes measured by time-resolved laser-induced fluorescence. The measurements are compared with branching fractions, radiative lifetimes, and transition probabilities in the literature. The 206 nm resonance multiplets in Cr II and Zn II are included in this work. These multiplets are very useful in determining the distribution of the elements in the gas versus grain phases in the interstellar medium.

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Oscillator Strengths Of The Si Ii 181 Nanometer Resonance Multiplet, Scott D. Bergeson, J. E. Lawler Jan 1993

Oscillator Strengths Of The Si Ii 181 Nanometer Resonance Multiplet, Scott D. Bergeson, J. E. Lawler

Faculty Publications

We report Si II experimental log (gf)-values of –2.38(4) for the 180.801 nm line, of –2.18(4) for the 181.693 nm line, and of –3.29(5) for the 181.745 nm line, where the number in parenthesis is the uncertainty in the last digit. The overall uncertainties (~10%) include the 1 σ random uncertainty (~6%) and an estimate of the systematic uncertainty. The oscillator strengths are determined by combining branching fractions and radiative lifetimes. The branching fractions are measured using standard spectroradiometry on an optically thin source; the radiative lifetimes are measured using time-resolved laser-induced fluorescence.

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Ti-Ii Transition Probabilities And Radiative Lifetimes In Ti+ And The Solar Titanium Abundance, A. Bizzarri, M.C.E. Huber, A. Noels, N. Grevesse, Scott D. Bergeson, P. Tsekeris, J. E. Lawler Jan 1993

Ti-Ii Transition Probabilities And Radiative Lifetimes In Ti+ And The Solar Titanium Abundance, A. Bizzarri, M.C.E. Huber, A. Noels, N. Grevesse, Scott D. Bergeson, P. Tsekeris, J. E. Lawler

Faculty Publications

Transition probabilities of 100 Ti-II emission lines, originating from 7 different atomic levels, have been determined by combining branching fractions with radiative lifetimes. The branching fractions were meaures using Fourier transform spectroscopy on a hollow cathode. The radiative lifetimes of these 7 – and 35 additional – levels were measured using time resolved laser-induced fluorescence on a slow Ti ion beam. The transition probabilities of 21 very weak lines have been used to derive a solar titanium abundance of aTi=log(NTi/NH)+12=5.04±0.04 dex, which is insensitive to the solar model. This value is in …

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A Districtwide Staff Development Program For Transitioning From A Basal To A Whole Language Literacy Program: The Teacher Educator's Role As A Partner In The Change Process, Jeannie L. Steele, Kurt Meredith Jan 1993

A Districtwide Staff Development Program For Transitioning From A Basal To A Whole Language Literacy Program: The Teacher Educator's Role As A Partner In The Change Process, Jeannie L. Steele, Kurt Meredith

Faculty Publications

This paper describes Project MILE (Moline Improvement in Literacy Education); a school/university partnership program between the University of Northern Iowa and Moline (Iowa) Public School District #40. The project called for a long-term collaborative effort in order to develop a complex and sophisticated level of university involvement with a single school district; which would allow for observation of successes and failures and provide opportunities for refinement of training efforts based on feedback. The project combined the prescriptive and catalytic models of organizational intervention; as teacher educators served as consultants to bring new information and strategies to the school teaching and …

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Honoring Diversity In Teacher Education: Infusing Learning Styles; Cooperative Learning And Multicultural Nonsexist Education Into The Student Teaching Semester, Janey L. Montgomery, Joyce Simpson, Judy Lindholm Jan 1993

Honoring Diversity In Teacher Education: Infusing Learning Styles; Cooperative Learning And Multicultural Nonsexist Education Into The Student Teaching Semester, Janey L. Montgomery, Joyce Simpson, Judy Lindholm

Faculty Publications

This paper demonstrates how teacher educators can empower preservice teachers to develop a rationale for honoring diversity in their classrooms by building upon an awareness of learning style preference; cooperative learning; and multicultural nonsexist education. A human relations course at the University of Northern Iowa that is taught concurrently with the student teaching experience demonstrates how student teachers become involved in collaborative relationships with their peers by sharing weekly seminars; planning presentations; doing action research; and engaging in classroom instruction. The model involves personalization of concepts through experiential learning in which group building and team teaching are key strategies. Learning …

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Discovering The Unique Synergy Potential Of Undergraduate Research And Tourism Service Needs, Deirdre Gibbons, Brian J. Hill Jan 1993

Discovering The Unique Synergy Potential Of Undergraduate Research And Tourism Service Needs, Deirdre Gibbons, Brian J. Hill

Faculty Publications

This paper explores the needs and benefits for using undergraduates as a resource at tourism University Centers. The purpose of undergraduate tourism programs varies, but programs strive to combine theory with application, and research plays a role in this process. Undergraduates stand to benefit from the managerial and decision-making skills they can learn through research. The number of university tourism research centers has increased worldwide. These centers often function on small budgets and have limited research centers, yet their services and clientele · base are increasing. This paper explores how some universities have involved undergraduates in university tourism research, focusing …

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Lessons From Federal Pesticide Regulation On The Paradigms And Politics Of Environmental Law Reform, Donald Thomas Hornstein Jan 1993

Lessons From Federal Pesticide Regulation On The Paradigms And Politics Of Environmental Law Reform, Donald Thomas Hornstein

Faculty Publications

No abstract provided.

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Justice Scalia, Standing, And Public Law Litigation, Gene R. Nichol Jr. Jan 1993

Justice Scalia, Standing, And Public Law Litigation, Gene R. Nichol Jr.

Faculty Publications

No abstract provided.

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What Do You Think About The Twenty-Seventh Amendment?, William W. Van Alstyne Jan 1993

What Do You Think About The Twenty-Seventh Amendment?, William W. Van Alstyne

Faculty Publications

No abstract provided.

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Reagan Redux: Civil Rights Under Bush, Neal Devins Jan 1993

Reagan Redux: Civil Rights Under Bush, Neal Devins

Faculty Publications

No abstract provided.

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The Law School Expansion Draft (On The Lighter Side), Paul A. Lebel Jan 1993

The Law School Expansion Draft (On The Lighter Side), Paul A. Lebel

Faculty Publications

No abstract provided.

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The Pressure Of Precedent: A Critique Of The Conservative Approaches To Stare Decisis In Abortion Cases, Michael J. Gerhardt Jan 1993

The Pressure Of Precedent: A Critique Of The Conservative Approaches To Stare Decisis In Abortion Cases, Michael J. Gerhardt

Faculty Publications

No abstract provided.

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Clearer Conceptions Of Insider Preferences, Peter A. Alces Jan 1993

Clearer Conceptions Of Insider Preferences, Peter A. Alces

Faculty Publications

No abstract provided.

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Report Of The Coalition For A New America: Platform Section On Communications Policy, Rodney A. Smolla Jan 1993

Report Of The Coalition For A New America: Platform Section On Communications Policy, Rodney A. Smolla

Faculty Publications

No abstract provided.

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Information, Imagery, And The First Amendment: A Case For Expansive Protection Of Commercial Speech, Rodney A. Smolla Jan 1993

Information, Imagery, And The First Amendment: A Case For Expansive Protection Of Commercial Speech, Rodney A. Smolla

Faculty Publications

No abstract provided.

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Denitrification And Oxygen Consumption In Sediments Of Two South Texas Estuaries, Won Bae Yoon, Ronald Benner Dec 1992

Denitrification And Oxygen Consumption In Sediments Of Two South Texas Estuaries, Won Bae Yoon, Ronald Benner

Faculty Publications

Spatial and temporal variations in rates of denitrification and oxygen consumption were measured in sediments of the Nueces and Guadalupe Estuaries in southern Texas, USA. Denitrification rates varied from 4.0 to 71.1 µmol N2 m-2 h-1 in the Nueces Estuary and from 4.6 to 34.7 µmol N2 m-2 h-1 in the Guadalupe Estuary. Denitrification accounted for 29 to 80% of total benthic N flux in the study areas. Oxygen consumption rates ranged from 176 to 818 µmol O2 m-2 h-1 in Nueces Estuary and from 208 to 550 µmol O2 …

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