Digital Commons Network^™

Crop Watch No. 2001-18, July 20, 2001, Lisa Brown Jasa

Crop Watch (1994–2005)

Field Updates..........158

Soybean weed Control..........159

New BLB Thresholds..........160

Assessing Rootworm Damage..........162

Grazing Dryland Corn..........162

White Wheat Update..........164

Research Focus on Lyon..........165

Ally Okayed for Sorghum..........165

Thistle Caterpillars..........166

Sunflower Insect Alert..........167

Vertical Profiles Of Streambed Hydraulic Conductivity Determined Using Slug Tests In Central And Western Nebraska, David L. Rus, Virginia L. Mcguire, Brian R. Zurbuchen, Vitaly A. Zlotnik

Department of Earth and Atmospheric Sciences: Faculty Publications

Many issues of water-resources management rely on modeling of ground-water/surface-water interactions, and streambed hydraulic conductivity is a key parameter controlling the water fluxes across the stream/aquifer interface. However, in central and western Nebraska, this parameter is generally undefined. The U.S. Geological Survey, in cooperation with the Nebraska Platte River Cooperative Hydrology Study Group, performed slug tests at 15 steam sites in the Platte, Republican, and Little Blue River watersheds to determine the hydraulic conductivity of streambeds in central and western Nebraska. Slug tests were completed at several discrete depth intevals using pneumatic or mechanical methods, and the water-level response was …

Rab11-Like Gtpase Associates With And Regulates The Structure And Function Of The Contractile Vacuole System In Dictyostelium, Ed Harris, Kunito Yoshida, James Cardelli, John Bush

Department of Biochemistry: Faculty Publications

Screening of a cDNA library revealed the existence of a Dictyostelium cDNA encoding a protein 80% identical at the amino acid level to mammalian Rab11. Subcellular fractionation and immunofluorescence studies revealed that DdRab11 was exclusively associated with the ATPase proton pump-rich contractile vacuole membrane system, consisting of a reticular network and bladder-like vacuoles. Video microscopy of cells expressing GFP-DdRab11 revealed that this Rab was associated with contractile vacuolar bladders undergoing formation, fusion and expulsion of water. The association of DdRab11 with contractile vacuole membranes was disrupted when cells were exposed to either hypo-osmotic conditions or an inhibitor of the ATPase …

Construction Of A Derivative Of Agrobacterium Tumefaciens C58 That Does Not Mutate To Tetracycline Resistance, Zhao-Qing Luo, Thomas E. Clemente, Stephen K. Farrand

Nebraska Center for Biotechnology: Faculty and Staff Publications

Agrobacterium tumefaciens C58 mutates to tetracycline resistance at high frequency, complicating the use of many broad-host-range cloning and binary vectors that code for resistance to this antibiotic as the selection marker. Such mutations are associated with a resistant gene unit, tet_C58, that is present in the genome of this strain. By deleting the tet_C58 locus, we constructed NTL4, a derivative of C58 that no longer mutates to tetracycline resistance. The deletion had no detectable effect on genetic or physiological traits of NTL4 or on the ability of this strain to transform plants.

Linear-Nonequilibrium Thermodynamics Theory For Coupled Heat And Mass Transport, Yaşar Demirel, Stanley I. Sandler

Yaşar Demirel Publications

Linear-nonequilibrium thermodynamics (LNET) has been used to express the entropy generation and dissipation functions representing the true forces and flows for heat and mass transport in a multicomponent fluid. These forces and flows are introduced into the phenomenological equations to formulate the coupling phenomenon between heat and mass flows. The degree of the coupling is also discussed. In the literature such coupling has been formulated incompletely and sometimes in a confusing manner. The reason for this is the lack of a proper combination of LNET theory with the phenomenological theory. The LNET theory involves identifying the conjugated flows and forces …

High School Students' Perceptions Of Evolutionary Theory, C. Sheldon Woods, Lawrence C. Scharmann

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

If we are to be successful in teaching evolution, we must take into account our students' worldviews as well as their individual understandings and misconceptions. It is im-portant to know our students their cultures, personal his-tories, cognitive abilities, religious beliefs, [and] scientific misconceptions. [It is also important] to address directly the likely cultural/religious concerns with evolution and to do so early on so as to break down the barriers that keep many students from hearing what you say. (Smith, 1994, p. 591)

Smith penned these words for a special issue of the Journal of Research in Science Teaching which focused …

The National Honors Report, Volume Xxii, Number 2, Summer 2001

The National Honors Report

COVER STORY

"Growing More Than Corn" by Daniel Abben, Lynn Cunningham, Shauna Duffy, Julie Kretzmer, Jason McLaughlin, Mary Beth Pistulka, Katy Rose Resnick, Alexa Spencer & Emily Wolf ... 1 Nine honors students from Clarke College, Dubuque, Iowa in required two-semester honors colloquium create their own website about multiculturalism and diversity in Iowa. With Katherine "Katie" Fischer, instructor. The philosophy and process (and its many zigs and zags) behind it. Website based on students' individual research topics, which include Orthodox Hasidic Jews in Postville, IA; women's role in Catholic church; militia groups; and minorities in honors programs. Presented at the …

George Eliot Birthday Luncheon, 19 November 2000 The Toast To The Immortal Memory, Kathleen Adams

The George Eliot Review Online, ISSN: 2831-5375

Now I am in my thirty-second year as Secretary of the Fellowship, Bill and I can look back over those years and realize what an immense change they have made to our lives. When we joined the tiny Fellowship in 1965 we could have had no idea what was in store for us - the interesting things that have happened to us, the lovely people (some of them quite famous!) we have met, the friends we have made and the places we have been to, all because of that wonderful lady we are celebrating today.

My first contact with George …

What Is Congress Supposed To Promote?: Defining "Progress" In Article I, Section 8, Clause 8 Of The United States Constitution, Or Introducing The Progress Clause, Malla Pollack

Nebraska Law Review

I. Introduction: Why Define "Progress"? … A. The Stakes in Positive Law ... B. The Definitional Hole ... C. How the Suggested Reading Fits the Constitutional Scheme ... 1. Originalism ... 2. An Evolving Constitution

II. Starting Points and Assumptions for Textual Analysis

III. Drafting and Ratification

IV. Testing Definitions in Contest

V. Linguistic Evidence ... A. Dictionaries ... B. The Pennsylvania Gazette … C. Idea of Progress Literature

VI. Conclusion

Developing New Faculty: An Evolving Program, Gloria Pierce

To Improve the Academy: A Journal of Educational Development

This essay describes the evolution of a program for the development of new faculty at a public teaching university. The year-long process of orienting the newest professors to the campus and assisting them with their scholarship and teaching results in additional (albeit unplanned and unexpected) benefits, such as professional renewal of senior faculty who serve as advisors and enhanced functioning of the university itself. Vital to the program’s success is the productive involvement of key campus constituencies and responsiveness to feedback.

Strengthening Collegiality To Enhance Teaching, Research, And Scholarly Practice: An Untapped Resource For Faculty Development, Gerlese S. Åkerlind, Kathleen M. Quinlan

To Improve the Academy: A Journal of Educational Development

Collegiality lies at the intersection of various aspects of academic practice, including teaching as well as research. As such, assisting junior faculty in learning to build their collegial networks becomes a powerful point of intervention for faculty developers, even for those who focus on teaching development. Data from interviews with faculty engaged in both teaching and research, plus our experiences in conducting a series of career building initiatives are analyzed to identify junior faculty perceptions of the role of collegiality and barriers to establishing collegial ties. Two main barriers are identified: 1) knowing that collegiality and networking is important, and …

Acuta Journal Of Telecommunications In Higher Education

ACUTA Journal

In This Issue

Web Technologies @RlT

lntegrating the Arts and Sciences with lT at GMU

Collaboration ls the Key to Success

A Panel Looks at the lmpact of the Web on the Classroom

21st-Century Classrooms

Using the Web as a Safety Net

Caught in the Web: How Schools Capture Alumni

UConn Wins Control of Campus Infrastructure

President's Message

From the Executive Director

Interview

Bill D. Morris Award

Ec01-798 Residential On-Site Wastewater Treatment: An Overview, Janet R. Hygnstrom, Wayne Woldt, Sharon Skipton

University of Nebraska-Lincoln Extension: Historical Materials

This publication will answer many questions that homeowners or potential homeowners, realtors and lenders may have about residential on-site wastewater treatment systems. Information is based on Title 124: Rules and Regulations for the Design, Operation and Maintenance of On-site WastewaterTreatment Systems of the Nebraska Department of Environmental Quality (NDEQ), which requires that a dwelling or establishment that generates wastewater have an on-site wastewater treatment system in accordance with those regulations, or be connected to a public wastewater treatment system. An establishment is a house, building, structure, or place that generates more than 1,000 gallons of wastewater per day, generates non-domestic …

"Vertebrate Pests Of Agriculture, Forestry And Public Lands" 2001 Annual Meeting

Western Region Coordinating Committee for Vertebrate Pests of Agriculture, Forestry, and Public Lands (WCC-95)

Table of Contents

2001 Officers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Minutes ................................................................ 2

Number and Title of the Regional Project ................................ 2

Location and Dates of the Meeting ................................... 2

Participants ................ , . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . …

Nf01-483 Attending Fairs: Safeguarding Your Health And Nebraska's Livestock Industry, Rosie Nold, David R. Smith

University of Nebraska-Lincoln Extension: Historical Materials

The recent media attention on outbreaks of foot-and-mouth disease in the United Kingdom and other livestock-related diseases is a reminder of the serious consequences of livestock diseases. Most diseases, including foot-and-mouth, cannot be transmitted from animals to humans, although a few diseases can affect both humans and animals. For your own health, it is important to use some simple sanitary practices when visiting places where livestock are housed or are being exhibited. Another concern is the spread of disease among animals. Even though many diseases do not present any direct risks to humans, human contact can help spread diseases to …

Nf01-457 Basic Computer Glossary Of Terms

University of Nebraska-Lincoln Extension: Historical Materials

ASCII (American Standard Code for Information Interchange) - The de-facto world-wide standard for the code numbers used by computers to represent all the upper and lower case Latin letters, numbers, punctuation, etc. There are 128 standard ASCII codes each of which can be represented by a 7 digit binary number: 0000000 through 1111111.

Crop Watch No. 2001-10, May 18, 2001, Lisa Brown Jasa

Crop Watch (1994–2005)

Field Updates..........88

West Central Open House..........88

Glyphosates Compared..........90

New Herbicides; Label Changes..........92

Alfalfa Weevil Activity..........92

Precipitation Update..........93

Diagnostic Clinic..........94

Tips For Sampling..........94

Ec01-797 Filtration And Maintenance: Considerations For Subsurface Drip Irrigation (Sdi), Brian Benham, Jose O. Payero

University of Nebraska-Lincoln Extension: Historical Materials

When using Subsurface Drip Irrigation (SDI) systems, it is important to prevent clogging problems before they occur. The best prevention plan includes an effective filtration and water treatment strategy. Depending on the water source and its quality, various combinations of sand separation, filtration and chemical treatments may be required and are discussed here in this extension circular.

Conjugated Linoleic Acid (Cla), Body Fat, And Apoptosis, Jess L. Miner, C. Cederberg, Merlyn K. Nielsen, Xiaoli Chen, Clifton Baile

Department of Animal Science: Faculty Publications

Objective: The objective of the study was to determine if consumption of conjugated linoleic acid (CLA) by mice could induce apoptosis in adipose tissue. Other objectives were to determine the influence of feeding mice CLA for ≤2 weeks on body fat, energy expenditure, and feed intake.

Research Methods and Procedures: A mixture of CLA isomers (predominantly c9,t11 and t10,c12) was included in the AIN-93G diet at 0, 1, and 2%, and fed to mice for 12 days (Trial 1), or was included at 2% and fed to mice for 0, 5, and 14 days (Trial 2). Feed intake …

Chitinases From The Plant Disease Biocontrol Agent, Stenotrophomonas Maltophilia C3, Z. Zhang, Gary Yuen, Gautam Sarath, A. R. Penheiter

Department of Plant Pathology: Faculty Publications

Stenotrophomonas maltophilia strain C3, a biocontrol agent of Bipolaris sorokiniana in turfgrass, produced chitinases in broth media containing chitin. Chitinases were partially purified from culture fluid by ammonium sulfate precipitation and chitin affinity chromatography. The chromatography fraction with the highest specific chitinase activity was inhibitory to conidial germination and germ-tube elongation of B. sorokiniana, but it was less inhibitory than the protein fraction or the raw culture filtrate. The fraction exhibited strong exochitinase and weak endochitinase activity. Optimum temperature and pH for chitinase activity were 45 to 50°C and 4.5 to 5.0, respectively. Chitinase activity was inhibited by Hg …

Bacillus Species For Reducing Fusarium Head Blight In Cereals, David A. Schisler, Naseem I. Khan, Michael J. Boehm

Department of Plant Pathology: Faculty Publications

Microbial antagonists that will suppress Fusarium head blight (head scab) in cereals, particularly in wheat and barley have been identified. Two superior antagonists include NRRL B-30210 and NRRL B-30211.

Selection And Evaluation Of Microorganisms For Biocontrol Of Fusarium Head Blight Of Wheat Incited By Gibberella Zeae, N. I. Khan, D. A. Schisler, Michael J. Boehm, P. J. Slininger, R. J. Bothast

Department of Plant Pathology: Faculty Publications

Gibberella zeae incites Fusarium head blight (FHB), a devastating disease that causes extensive yield and quality losses to wheat and barley. Of over 700 microbial strains obtained from wheat anthers, 54 were able to utilize tartaric acid as a carbon source when the compound was supplied as choline bitartrate in liquid culture. Four tartaric acid–utilizing and three nonutilizing strains reduced FHB in initial tests and were selected for further assays. Antagonists were effective against three different isolates of G. zeae when single wheat florets were inoculated with pathogen and antagonist inoculum. All seven antagonists increased 100-kernel weight when applied simultaneously …

Monoclonal Light Chain–Mesangial Cell Interactions: Early Signaling Events And Subsequent Pathologic Effects, William J. Russell, James Cardelli, Ed Harris, R. John Baier, Guillermo A. Herrera

Department of Biochemistry: Faculty Publications

Glomerulopathic monoclonal light chains (G-LC) interact with mesangial cells (MC), resulting in alterations of mesangial homeostasis. Early signaling events control mitogenic activities and cytokine production, which in turn participate in the subsequent pathologic events. Mesangial homeostasis is affected in two very different ways, depending on whether the G-LC is from a patient with light chain deposition disease (LCDD) or light chain–related amyloidosis (AL-Am). In contrast, tubulopathic (T)-LC chains from patients with myeloma cast nephropathy do not significantly interact with MC and result in no alterations in mesangial homeostasis. Therefore, understanding early events in the monoclonal LC–MC interactions is fundamental. MC …

Distinctive Hydrocarbons Of The Black Dump Fly, Hydrotaea Aenescens (Diptera: Muscidae), David A. Carlson, Ulrich R. Bernier, Jerome A. Hogsette, Bruce D. Sutton

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

Hydrotaea aenescens (Wiedemann), the black dump fly, is a potential biological control agent originally from the western hemisphere, now found in many parts of the Palearctic region except for the United Kingdom, where it cannot be imported for any reason. A complication of classical biological control is the problem of strain identification, as one must be able to somehow mark or follow a particular strain that has been introduced into the field or is contemplated for release. Gas chromatographic analysis of the surface hydrocarbons of pooled and individual dump fly adults resulted in reproducible hydrocarbon patterns that differentiated widely distributed …

Dis And Distributed Watershed Models I, Jurgen Garbrecht, Fred L. Ogden, Paul A. Debarry, David R. Maidment

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

The increasing proliferation of spatial data, geographic information systems (GIS), and models for hydrologic applications provide many new investigation opportunities but also present a number of challenges for the uninitiated water resources practitioner. This two-part paper is intended for the practicing engineer who wants to expand into the arena of spatial data and distributed watershed modeling. It provides an integrated overview of the multiple facets of data-GIS-modeling issues and a source of background information for selection and application of GIS in watershed modeling. This first paper addresses selected spatial data issues, data structures and projections, data sources, and information on …

Endophytic Fungi In Canada Wild Rye In Natural Grasslands, Mary Ann Vinton, Emily S. Kathol, Kenneth P. Vogel, Andrew A. Hopkins

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

Some grasses harbor endophytic fungi living in intercellular spaces in the leaves, stems and reproductive organs. The fungi can dramatically affect the physiology and ecology of plants. For example, fungi may produce toxins that deter herbivores and they may alter the water status of the plant to increase drought tolerance. The distribution of fungal infection in natural plant populations is unknown for many host species. We investigated the occurrence of endophytic fungi in Elymus canadensis L. (Canada wild rye) from 13 remnant prairie sites in the midwest and 23 sites in the southern Great Plains. Collections of plant tissue came …