Digital Commons Network^™

Trompe L'Oeil: The Art Of Deception, Nancy H. Dawson

Sheldon Museum of Art: Catalogs and Publications

The tenth annual Sheldon Statewide exhibition, Trompe l'oeil: The Art of Deception, marks a decade in the uniquely successful partnership between the Sheldon Memorial Art Gallery and Sculpture Garden, our principal funding support group, the Nebraska Art Association, a nonprofit volunteer membership organization dedicated to the advancement of the visual arts in Nebraska, and twenty-two Nebraska communities that have served as exhibition venues in the past ten years. Local sponsors who support the exhibition in their community, and volunteer docents who disseminate vitally important information to the school children and adults of Nebraska have been equally invaluable to the …

Effect Of Sulfate On The Release Rate Of Al3+ From Gibbsite In Low-Temperature Acidic Waters, Moira K. Ridley, David J. Wesolowski, Donald A. Palmer, Pascale Bénézeth, Richard Kettler

Department of Earth and Atmospheric Sciences: Faculty Publications

Solubility experiments were performed at 5 °C by reacting 1 g of powdered gibbsite with 45 g of aqueous H₂SO₄-NaCl and HCl-NaCl (0.01 m H+) solutions at 0.1 m ionic strength. The kinetics of dissolution were monitored under extremely undersaturated conditions and appeared to favor a zero-order rate-determining process. The dissolution rate of gibbsite in the sulfate solution was approximately 10 times faster than in the HCl solution, which is consistent with trends reported in the literature for studies performed at higher temperatures. The enhanced dissolution kinetics of gibbsite (and by analogy, other aluminum-containing minerals) in …

Bt Corn And European Corn Borer, K. R. Ostlie, W. D. Hutchison, R. L. Hellmich

Department of Entomology: Faculty Publications

Authors and Contributors: J.F. Witkowski, J.L. Wedberg, K.L. Steffey, P.E. Sloderbeck, B.D. Siegfried, M.E. Rice, C.D. Pilcher, D.W. Onstad, C.E. Mason, L.C. Lewis, D.A. Landis, A.J. Keaster, F. Huang, R.A. Higgins, M.J. Haas, M.E. Gray, K.L. Giles, J.E. Foster, P.M. Davis, D.D. Calvin, L.L. Buschman, P.C. Bolin, B.D. Barry, D.A. Andow & D.N. Alstad.

Bt Corn & European Corn Borer

Seed companies are now marketing Bt corn, one of the first tangible fruits of biotechnology that has practical implications for U.S. and Canadian corn farmers. Bt corn hybrids produce an insecticidal protein derived from the bacterium Bacillus thuringiensis, commonly called …

Editorial Matter 1997

To Improve the Academy: A Journal of Educational Development

Ordering Information

Permission to Copy

Instructions to Contributors for the 1998 Volume

Reviewers for the 1997 Volume

Mission Statement

Membership, Conference and Programs Information

Contents

Foreword, by Deborah DeZure

Introduction, by Deborah DeZure

About POD

State Actions To Mitigate Drought: Lessons Learned, Donald A. Wilhite

National Drought Mitigation Center: Faculty Publications

Drought has been a common feature in the United States during the past decade and has resulted in significant economic, social, and environmental impacts in virtually all parts of the nation. The purpose of this paper is two fold. First, the status of state drought planning is discussed to illustrate the significant increase in the number of states that have prepared response plans—from three states in 1982 to 27 in 1997. In addition, six states are now in various stages of plan development. Second, mitigative actions implemented by states in response to the series of severe drought years since 1986 …

Dbs-Based Education And The Role Of The Teacher, James Emal, Antonio Ruiz, Miriam J. Masullo

University of Nebraska-Lincoln Extension: Historical Materials

This paper describes how a broadcast education infrastructure can be used to access a digital library of K-12 content. Technical references to prior research and development done in support of this concept are provided. The main goal of this paper is to relate those concepts and technical developments to a solution that emphasizes the role of the teacher. The framework for this solution, EduPort/DBS, attempts to bring tools and technical options to bear on a system for education infrastructure.

Adsorption And Desorption Of Phosphorus And Nitrogen By Immersed Stalks, John E. Gilley, B. Eghball, David B. Marx

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Adsorption and desorption of phosphorus (P) and nitrogen (N) by stalk residues may influence the concentrations of P and N in runoff. A laboratory study was conducted to measure the effects of P and N constituents in solution on adsorption and desorption of P and N by corn, soybean, and wheat stalk residues. Experimental variables included type of stalk material (corn, soybean, and wheat), inorganic nutrients in solution (PO₄-P and NO₃-N; PO₄-P and NH₄-N; NO₃-N and NH₄-N; and PO₄-P, NO₃-N, and NH₄-N), …

Factors Leading To The Uprisings At Wounded Knee In 1890 & 1973: The Other Story, Andrew Amiotte

Nebraska Anthropologist

Throughout history, the American Indians have experienced maltreatment by the invasion of outside cultures and by people with power. As the Indians have been forced to move westward by the U.S. government, many treaties have been drawn up as a promise that the tribes would never again be invaded. These broken promises influenced the placing of the indigenous people onto reservations. Also, the Indians were forced to abandon their native way of life.

This paper discusses why forcing the Lakota Sioux to live on reservations and to adopt an Anglo culture led to great misery. This new way of life …

Human Mate Selection Based On Developmental Stability As Signaled Through Physical Attractiveness: An Assessment Of The Traits Used To Determine Attractiveness And The Evolutionary Mechanisms For Their Development, Erin H. Kimmerle

Nebraska Anthropologist

What are the criteria used to select a mate? Study of this question on non-human subjects has shown many organisms choose mates based on assessments of health, youthfulness, and fertility, as signaled through certain physical characteristics. Investigations into the mating behaviors of humans, cross-cultural studies of attractiveness, and current medical research link features of attractiveness with health and support the evolutionary perspective that beauty is more than an arbitrary cultural creation. The characteristics which males and females find attractive in the opposite sex are largely the results of the evolution of sexual selection and serve to inform potential mates of …

The Dark Side Of The Moon The Status Of The Moon: Public Concepts And Private Enterprise, Frans G. Von Der Dunk

Space, Cyber, and Telecommunications Law Program: Faculty Publications

Thirty years after the entry into force of the Outer Space Treaty most of its principles and concepts have not only found general acceptance as such, but also undergone considerable further development and elaboration. One of the most notable exceptions was the definition of the status of the moon (and other celestial bodies). This was partly due to the circumstances surrounding the drafting, conclusion, entry into force and then ultimate neglect by most states of the Moon Agreement, which was supposed to progressively develop and elaborate this issue. Now that an increasing interest may be discerned in returning to the …

Use Of Ultralight Aircraft For Introducing Migratory Crane Populations, Kent R. Clegg, James C. Lewis, David H. Ellis

Proceedings of the North American Crane Workshop

Greater sandhill cranes (Grus canadensis tabida) were used as the research surrogate for whooping cranes (Grus americana) to determine if captive-reared cranes could be led by an ultralight aircraft (UL) along a migration route and if, after release on a wintering area, they would integrate with wild cranes and migrate north in spring to their natal area without assistance. In 1995, KRC raised 15 cranes to fledging and trained them to respond to his vocal imitation of a sandhill crane brood call. Chicks learned to follow him as he walked, drove an all-terrain vehicle (ATV) , …

Bovine Tuberculosis In Free-Ranging White-Tailed Deer From Michigan, Stephen M. Schmitt, Scott D. Fitzgerald, Thomas M. Cooley, Colleen S. Bruning-Fann, Larry Sullivan, Dale Berry, Thomas Carlson, Richard B. Minnis, Janet B. Payeur, James Sikarskie

Michigan Bovine Tuberculosis Bibliography and Database

A 4.5 yr-old male white-tailed deer (Odocoileus virginianus) killed by a hunter during the 1994 firearm hunting season in northeastern Michigan (USA) had lesions suggestive of tuberculosis and was positive on culture for Mycobacterium bovis the causative agent for bovine tuberculosis. Subsequently, a survey of 354 hunter-harvested white-tailed deer for tuberculosis was conducted in this area from 15 November 1995 through 5 January 1996. Heads and/or lungs from deer were examined grossly and microscopically for lesions suggestive of bovine tuberculosis. Gross lesions suggestive of tuberculosis were seen in 15 deer. Tissues from 16 deer had acid-fast bacilli on …

Prior Beliefs And Voter Turnout In The 1986 And 1988 Congressional Elections, Stephen P. Nicholson, Ross A. Miller

Department of Political Science: Faculty Publications

The costs of political information differ between and among elections. In those elections where information costs are high, voters should rely on information from previous elections. Although research on voter choice has long recognized that voters use past information in their assessments of candidates, studies of voter turnout are solely concerned with information available in the current election. Specifically, the closeness of elections is a central concern in rational actor models of voter turnout. As such, these studies neglect the effects of prior electoral competitiveness on citizens’ decisions to vote. In this study we propose that actors rely on prior …

Mutants Of Prevotella RuminicolaDefective In Peptidase Activity: Impact On Ammonia Production, Humberto Madeira, Lasha Peng, Mark Morrison

Nebraska Beef Cattle Reports

An enzyme from a predominant ruminal bacterium that degrades peptides has a significant impact on ammonia production, and its manipulation could increase efficiency of nitrogen retention in forage- fed animals.

Perspectives On The Diagnosis, Epizootiology, And Control Of The 1973 Duck Plague Epizootic In Wild Waterfowl At Lake Andes, South Dakota, Gary Pearson, Delmar Cassidy

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

An epizootic of duck plague occurred in early 1973 in a population of 163,500 wild waterfowl, primarily mallards (Anas platyrhynchos), wintering on Lake Andes and the nearby Missouri River in southeastern South Dakota (USA). The diagnosis was based on pathologic lesions and confirmed by virus isolation. Control measures included quarantine, attempts to reduce virus contamination of the area, dispersal of waterfowl, and monitoring of wild waterfowl populations for mortality. The epizootic resulted in documented mortality of 18% and estimated mortality of 26% of the waterfowl at risk. Prompt implementation of control measures might have limited mortality to approximately …

Relationship Between Yeast Polyribosomes And Upf Proteins Required For Nonsense Mrna Decay, Audrey L. Atkin, Laura R. Schenkman, Margot Eastham, Jeffrey N. Dahlseid, Michael J. Lelivelt, Michael R. Culbertson

School of Biological Sciences: Faculty Publications

In yeast, the accelerated rate of decay of nonsense mutant mRNAs, called nonsense-mediated mRNA decay, requires three proteins, Upf1p, Upf2p, and Upf3p. Single, double, and triple disruptions of the UPF genes had nearly identical effects on nonsense mRNA accumulation, suggesting that the encoded proteins function in a common pathway. We examined the distribution of epitope-tagged versions of Upf proteins by sucrose density gradient fractionation of soluble lysates and found that all three proteins co-distributed with 80 S ribosomal particles and polyribosomes. Treatment of ly-sates with RNase A caused a coincident collapse of polyribosomes and each Upf protein into frac-tions containing …

Evaluation Of 41 Elite And Exotic Inbred Sorghum Genotypes For High Quality Callus Production, Heidi F. Kaeppler, Jeffrey F. Pedersen

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Interest is high in the genetic study and improvement of sorghum(Sorghum bicolor L. Moench), a crop of worldwide agronomic importance. The ability to initiate and maintain high quality (pigmentless, mucilage-free, fast growing, type II) callus cultures from a variety of sorghum genotypes is important for certain tissue culture-based genetic studies. The objective of this study was to identify high-quality callus-producing genotypes from a group of 41 diverse inbred sorghum lines. Callus cultures of 20 elite inbred sorghum genotypes and 21 inbred genotypes of exotic background were initiated from immature inflorescences. The cultures were subjected to several cycles of subculturing …

Creating A Culturally Relevant Environment For The African American Learner In The Foreign Language Classroom, Aleidine Kramer Moeller, Mary Ashcraft

Department of Teaching, Learning, and Teacher Education: Faculty Publications

Several developments have transformed the way the foreign language classroom looks, the role the teacher and the learner assume, and the approaches and strategies we use to teach and learn second languages. These changes stem from fundamental gains in the knowledge base of how second languages are acquired and learned as well as experimental inquiry into a variety of educational innovations such as cooperative learning, multiple intelligences, and the integration of technology into the classroom. Qualitative, quantitative, and action research have provided the foreign language profession evidence upon which to make informed decisions to build a classroom environment designed to …

Influence Of A Mycorrhizal Fungus And/Or Rhizobium On Growth And Biomass Partitioning Of Subterranean Clover Exposed To Ozone, Joseph E. Miller, Steven R. Shafer, Michele M. Schoeneberger, Walter A. Pursley, Stephanie J. Horton, Charles B. Davy

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

The influence of soilborne symbionts such as rhizobia or mycorrhizal fungi on plant response to ozone (O₃) has not been well defined. Leguminous plants in the field are infected by both types of organisms, which influence plant nutrition and growth. We studied the effects of infection with Rhizobium leguminosarum biovar trifolii and/or Gigaspora margarita on response of subterranean clover (Trifolium subterraneum L. cv Mt. Barker) to O₃. Exposures were conducted in greenhouse CSTR chambers using four O₃ concentrations [charcoal-filtered (CF), 50, 100, or 150 ppb; 6 h day^-1, 5 day wk^{-1 …}

Teaching Awards: The Problem Of Assessing Their Impact, Nancy Van Note Chism, Borbala L. Szabo

To Improve the Academy: A Journal of Educational Development

Although teaching awards are a popular approach to the reward and improvement of teaching, their impact has not been studied extensively. The studies that have been done find that they are motivational and affirming, but extensive, clear effects on teaching improvement have not been documented. Part of the difficulty in studying effects of awards involves goal complexity and vagueness. Suggested ways of studying effects begin with goals and employ a variety of approaches, ranging from interviews and surveys to document analysis.

Teaching Improvement Consultation For Teaching On Television, Joyce Povlacs Lunde, Myra S. Wilhite

To Improve the Academy: A Journal of Educational Development

Instructional consultants have traditionally offered individual consultation to faculty members on their campuses to improve teaching and learning. This kind of consultation to improve teaching is also valuable for those teaching on television, but consultants may need to prepare themselves in learning technologies and distance education in order to help faculty offering instruction via television. In addition, the phases of initial interview, data-gathering, data feedback, implementation, and evaluation, which constitute a process often used to improve teaching, need to be expanded to address teaching over television.

Fractured-Aquifer Hydrogeology From Geophysical Logs; The Passaic Formation, New Jersey, Roger H. Morin, Glen B. Carleton, Stephane Poirier

United States Geological Survey: Staff Publications

The Passaic Formation consists of gradational sequences of mudstone, siltstone, and sandstone, and is a principal aquifer in central New Jersey. Ground-water flow is primarily controlled by fractures interspersed throughout these sedimentary rocks and characterizing these fractures in terms of type, orientation, spatial distribution, frequency, and transmissivity is fundamental towards understanding local fluid-transport processes. To obtain this information, a comprehensive suite of geophysical logs was collected in 10 wells roughly 46 m in depth and located within a .05 km² area in Hopewell Township, New Jersey. A seemingly complex, heterogeneous network of fractures identified with an acoustic televiewer was …

Characterization Of The Replication Cycle Of The Lymantria Dispar Nuclear Polyhedrosis Virus, Christopher I. Riegel, James M. Slavicek

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

The life cycle of the Lymantria dispar nuclear polyhedrosis virus (LdMNPV) was characterized through analysis of budded virus (BV) release, the temporal formation of polyhedra, the temporal transcription pattern of representative early, late, and hyper-expressed late genes, and the onset of DNA replication in the Ld652Y cell line. Transcripts from the LdMNPV immediate early gene G22 were detected 4 h post infection (h p.i.). The late and hyper-expressed late p39 capsid and polyhedrin genes were initially transcribed at approximately 20 and 24 h p.i., respectively. Viral DNA replication initiated at approximately 18-20 h p.i. Budded virus …

“Here?” Strategies For Teaching About Cultural Diversity In Non-Diverse Settings, Anneliese Harper, Carol Cumber, Charles Braithwaite, Dawn O. Braithwaite

Department of Communication Studies: Faculty Publications

How can educators motivate people in ethnically non-diverse areas to learn about multiculturalism? The roadblocks people may encounter in this process are explored and ways instructors may address multiculturalism in the classroom are presented.

Minimizing The Number Of Optical Amplifiers Needed To Support A Multi-Wavelength Optical Lan/Man, Byrav Ramamurthy, Jason Iness, Biswanath Mukherjee

School of Computing: Conference and Workshop Papers

Optical networks based on passive star couplers and employing wavelength-division multiplexing (WDhf) have been proposed for deployment in local and metropolitan areas. Amplifiers are required in such networks to compensate for the power losses due to splitting and attenuation. However, an optical amplifier has constraints on the maximum gain and the maximum output power it can supply; thus optical amplifier placement becomes a challenging problem. The general problem of minimizing the total amplifier count, subject to the device constraints, is a mixed-integer non-linear problem. Previous studies have attacked the amplifier placement problem by adding the “artificial” constraint that all wavelengths, …

Prediction Of Stress Appraisals From Mastery, Extraversion, Neuroticism, And General Appraisal Tendencies, S. H. Hemenover, Richard A. Dienstbier

Department of Psychology: Faculty Publications

Several personality dimensions (mastery, extraversion, and neuroticism) and a new General Appraisal Measure were used to predict stress appraisals made by college students in specific situations. Using multiple-regression techniques, mastery and general appraisal tendencies predicted appraisals for an intellectual task. Path analysis supported a structural model with general appraisal tendencies as a mediator between mastery and specific appraisal. In the second study mastery, extraversion, neuroticism, and general appraisal tendencies predicted appraisals for an academic stressor. Path analysis again supported the mediational nature of general appraisal tendencies from personality variables to specific appraisal. We discuss a potential causal mechanism between personality …

Acuta Enews December 1996, Vol. 25, No. 12

ACUTA Newsletters

In This Issue

Fifth Annual Institutional Excellence Awards Competition

ACUTA News will have a new look

Welcome New Members

President's Message

Emergency Phone Provide Security

DC at a Glance

Fiber Optic Video Systems for Campus Networking

Campus News Briefs

Industry Insights

From ACUTA Headquarters

Flea News 53 (December 1996), Robert E. Lewis

Flea News

Robert E. Lewis to retitre from Iowa State University effective January 1, 1997

Book reviews

Obituaries: Robert S. Traub (October 26, 1916-December 21, 1996); Dorald Mervin Allred (July 11, 1923-June 20, 1996)

Miscellanea

Siphonaptera literature

Report: Use of an orally administered insect development inhibitor (Lufenuron) as a flea control agent in the California ground squirrel, Spermophilus beecheyi by Richard M. Davis

Pod Network News, December 1996

Professional and Organizational Development Network in Higher Education: POD Network News

POD Conference Communiqués: Many Thanks to Conference Volunteers, Future Conference Sites, 1997 Conference, Call for Proposals

Core Committee News: Core Committee Report, Core Committee Elections, Information Request, POD Joins ICED

Your Thoughts on POD

Bright Ideas

Regional Association Overview

An Invitation to POD Retirees for Membership Emeritus/Emerita

WWW Workings: Pages on Practice, New Home Page

Conferences

New Journal

New Books

Member News

FIPSE Participation Opportunity

Call for Manuscripts

POD Electronic Mailing List

POD Network News Submissions

Defining the Field Survey

For You to Do

Diffuse Energy Propagation On Heterogeneous Plates: Structural Acoustics Radiative Transfer Theory, Joseph A. Turner, Richard L. Weaver

Department of Engineering Mechanics: Faculty Publications

The propagation of diffuse energy on an unwetted flat plate with attached heterogeneities is examined using a statistical, multiple scattering approach. The statistically homogeneous heterogeneities lightly couple the membrane and flexural waves. The problem is formulated in terms of the Bethe–Salpeter equation, which governs the field covariance. It is reduced to a radiative transfer equation in the limit that the attenuations per wave number are small, i.e., when the heterogeneities are weak. This radiative transfer equation governs the diffuse energy propagation as a function of space, time, and propagation direction. Solutions of the radiative transfer equation are presented for the …