Digital Commons Network^™

Casnr Salute To Graduates, John Owens

John Owens: Speeches and Appearances

We appreciate your being with us this afternoon as we celebrate, the accomplishments of tomorrow's graduates from the University of Nebraska-Lincoln. Thank you for attending and, congratulations to the new alumni! This ceremony is rapidly becoming both a fixture and a tradition in the College of Agricultural Sciences and Natural Resources. As a matter of fact, it took the national "First Place Award" in a competition this year that was open to all the universities in the United States.

Water Conference, John Owens

John Owens: Speeches and Appearances

We've all heard Mark Twain's old adage: "Whiskey is for drinking; water is for fighting over." Twain penned those words in 1884, and while I won't touch his commentary on whiskey, his comment on water remains on target today.

Casnr Salute To Graduates, John Owens

John Owens: Speeches and Appearances

We appreciate your being with us as we celebrate the accomplishments of tomorrow’s graduates from the University of Nebraska – Lincoln. Thank you for attending. This ceremony is rapidly becoming both a fixture and a tradition in the College of Agricultural Sciences and Natural Resources.

2006 Master Conservationist Presentations, John Owens

John Owens: Speeches and Appearances

Kirk and William Laux (locks) of Bridgeport in the Panhandle will receive the first Master Conservationist recognition in Production Agriculture. Will Kirk and William please come forward? This family limited partnership includes 5,000 acres of rangeland, 160 acres of dryland, 1200 acres of irrigated land, a cow-calf operation, and a feedlot. They began farming in the 1960s and later purchased several "tired" eroded units. These units were improved by “applying" erosion control practices including seeding, cross-fencing, and improved watering.

Seven New Species Of Eimeria Schneider, 1875 (Apicomplexa: Eimeriidae) From Colubrid Snakes Of Guatemala And A Discussion Of What To Call Ellipsoid Tetrasporocystic, Dizoic Coccidia Of Reptiles, I. M. Asmundsson, Donald W. Duszynski, J. A. Campbell

Harold W. Manter Laboratory of Parasitology: Faculty Publications

During a survey of Guatemalan herpetofauna in the summers of 1998–2000, 29 presumed new species of Eimeria Schneider, 1875 were found, seven of which have a distinct elongate-ellipsoidal shape (L/W ratio ≥ 1.7) and are described herein. Six of the seven new species are similar in oöcyst length, width and L/W ratio and sporocyst length, width and L/W ratio, lack a micropyle, oöcyst residuum, Stieda body, sub- and parastieda bodies, have a polar granule and sporocyst residuum, and their sporocysts appear to have dehiscence sutures. The seventh is slightly smaller and has sporocysts with a Stieda body. The new species …

Psettarium Anthicum Sp. N. (Digenea: Sanguinicolidae) From The Heart Of Cobia Rachycentron Canadum (Rachycentridae) In The Northern Gulf Of Mexico, Stephen A. Bullard, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Psettarium anthicum sp. n. (Digenea: Sanguinicolidae) infects the myocardium and atrial wall of the cobia Rachycentron canadum (Linnaeus, 1766) (Rachycentridae) in the northern Gulf of Mexico off Mississippi, USA. It is the first member of Psettarium Goto et Ozaki, 1930 reported from other than the Indian Ocean or Pacific Ocean and the second species of the genus reported from cobia. It differs from its congeners by the combination of having posterior caeca with lateral projections appearing as thorns in lateral view and the male pore anterior to the oötype. The species of Psettarium, P. japonicum (Goto et Ozaki, 1929) …

Evaluation Of Bird Response To Propane Exploders In An Airport Environment, Brian E. Washburn, Richard B. Chipman, Laura C. Francoeur

United States Department of Agriculture Wildlife Services: Staff Publications

Bird-aircraft collisions (bird-strikes) cause serious safety hazards to aircraft, costing civilian aviation at least $496 million annually in the U.S. Non-lethal bird-frightening devices, such as propane exploders, are commonly used to deter birds from airport environments. We conducted a study during August - October 2004 to determine the efficacy of propane exploders utilized with and without concurrent lethal reinforcement activities for altering bird behavior at John F. Kennedy International Airport in Queens, New York. Two groups of 8 propane exploders each were deployed on the airfield. One group of propane exploders was set to “off” (control), whereas the other group …

Breeding Biology And Success Of A Reintroduced Population Of The Critically Endangered Puaiohi (Myadestes Palmeri), Erik J. Tweed, Jeffrey T. Foster, Bethany L. Woodworth, William B. Monahan, Jherime L. Kellerman, Alan Lieberman

United States Geological Survey: Staff Publications

The ultimate success of reintroduction programs for endangered species depends on the ability of reintroduced animals to breed in the wild. We studied the nesting success and breeding biology of a reintroduced population of Puaiohi (Myadestes palmeri) on the island of Kaua‛i, Hawaii. Thirty-four captive-bred Puaiohi were released into the Alaka‛i Swamp in 1999–2001 and monitored using radiotelemetry. Ten females and two males paired with wild and other released birds, including one polygynous trio. From March to September, 31 nests were built. Mean clutch size was 2.0 eggs, daily nest survival was 0.97 ± 0.01 (mean ± SE) …

Tannerella Forsythia, A Periodontal Pathogen Entering The Genomic Era, Anne C. R. Tanner, Jacques Izard

Department of Food Science and Technology: Faculty Publications

Several questions need to be addressed to evaluate whether Tannerella forsythia is to be considered a periodontal pathogen. T. forsythia has been detected in periodontal health and disease, so could it be a pathogen? The species was not detected in many studies despite finding other putative pathogens, so could it be important in pathogenicity? The challenges of working with T. forsythia include its fastidious and anaerobic growth requirements for cultural detection. Thus, studies associating T. forsythia with periodontal and other oral infections have used noncultural approaches (immunoassays and DNA-based assays) in addition to cultural approaches. We feel …

Has The Chesapeake Bay Tide Turned?, Carl W. Tobias

Law Faculty Publications

Review of Tom Horton, Turning Tide: Saving the Chesapeake Bay (2003)

Merck V. Integra And Its Aftermath: A Safe Harbor For The Commercial Use Of Biotechnology Research Tools?, Brendan M. O'Malley

Cardozo Arts & Entertainment Law Journal

No abstract provided.

A Duty To Protect The Rights Of Performers? Constitutional Foundations Of An Intellectual Property Right, Michael Gruenberger

Cardozo Arts & Entertainment Law Journal

No abstract provided.

The Great Mall Of China: Should The United States Restrict Importation Of Chinese Cultural Property?, Inbal Baum

Cardozo Arts & Entertainment Law Journal

No abstract provided.

Estrogenic Activity In The Environment: Municipal Wastewater Effluent, River, Ponds, And Wetlands, Nancy W. Shappell

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

Estrogenic activity of regional water samples was evaluated. Samples obtained from wetlands and ponds involved in various agricultural land uses, from three river sites over four seasons, and from municipal wastewater effluent held in storage lagoons were evaluated. The estrogen- responsive cell line MCF-7 BOS was used in the E-screen assay to determine 17β-estradiol equivalents (E₂ Eq) of water samples extracted by solid-phase extraction. Estrogenic activity in surrounding wetlands and ponds from different land uses was not different, with 10^-12 M E2 Eq (0.3 ppt). Estrogenic activity of Red River samples was within the same range as wetland–pond …

Un-Ionized Ammonia Exposure In Nile Tilapia: Toxicity, Stress Response, And Susceptibility To Streptococcus Agalactiae, Joyce J. Evans, David J. Park, Gregg C. Brill, Phillip H. Klesius

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

A series of experiments were conducted to determine the toxicity, behavior, blood glucose stress response, and disease susceptibility in Nile tilapia Oreochromis niloticus following un-ionized ammonia (UIA) exposure. The acute toxicity of un-ionized ammonia to Nile tilapia was measured in a 96-h static test. The median lethal concentration (LC50) was 1.46 mg/L UIA at 24 and 48 h postexposure, 1.33 mg/ L at 72 h postexposure, and 0.98 mg/L at 96 h postexposure. No mortalities were noted in unexposed (0 mg/ L) control fish or fish exposed to 0.5 mg/L UIA. However, 93–100% mortalities were observed within 24 h among …

International Shipping Of Fumonisins From Maize Extracts On C18 Sorbent, R. T. Riley, O. A. Torres, E. Palencia

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

Fumonisins are mycotoxins found in maize. In developing countries, the resources required for analysis are often lacking, and the shipping of maize between countries can be difficult since the importation of plant materials requires permits/ inspection to prevent the entry of pests that frequently infest maize. A simple, safe and legal method for shipping maize extracts to the USA was needed to conduct a survey of fumonisins in Central America. The objective was to develop a method for isolating and shipping maize extracts for fumonisin analysis so as to facilitate a survey of fumonisin exposure. The results indicate that fumonisins …

Improvements In Channel Catfish Growth After Two Generations Of Selection And Comparison Of Performance Traits Among Channel Catfish, Blue Catfish, And Hybrid Catfish Fingerlings In An Aquarium Rack System, Brian C. Small

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

A 9-week growth study was conducted to compare the fingerling performance of two genetic groups of channel catfish Ictalurus punctatus (United States Department of Agriculture [USDA] 103 and USDA303) with that of blue catfish I. furcatus and their hybrid in an aquarium rack system. Fish of approximately 20 g were randomly selected from multifamily populations and acclimated to the aquarium rack system for 2 weeks prior to the start of the 9-week study. Differences in growth indices, feed and protein efficiency, nitrogen retention, whole-body proximate composition, and plasma cortisol levels were determined at the completion of the study. The USDA303 …

Restoration Of Spermatogenesis And Male Fertility By Transplantation Of Dispersed Testicular Cells In The Chicken, Pavel Trefil, Alena Micáková, Jitka Mucksová, Jiń Hejnar, Martin Poplstein, Murray R. Bakst, Jirí Kalina, Jean-Pierre Brillard

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

Transplantation of male germ cells into sterilized recipients has been widely used in mammals for conventional breeding and transgenesis purposes. This study presents a workable approach for germ cell transplantation between male chickens. Testicular cells from adult and prepubertal donors were dispersed and transplanted by injection directly into the testes of recipient males sterilized by repeated gamma irradiation. We describe the repopulation of the recipient seminiferous epithelium up to the production of heterologous sperm in about 50% of transplanted males. In comparison to males transplanted with testicular cell preparations from adult donors, in which the first ejaculates with sperm were …

Registration Of ‘Bonanza’ Big Bluestem, Kenneth P. Vogel, R. B. Mitchell, Terry J. Klopfenstein, Bruce E. Anderson

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

‘Bonanza’ big bluestem (Andropogon gerardii Vitman.) (Reg. no. CV-13, PI 641701) was released in May 2004 by the USDA-ARS and the Agricultural Research Division, Institute of Agriculture and Natural Resources, University of Nebraska. It is a broadly adapted perennial warm-season grass cultivar that produces forage with high in vitro dry matter digestibility (IVDMD) and improved animal gains in comparison to its parent cultivar when utilized by beef cattle in well-managed grazing systems. Bonanza was tested as Pawnee C3.

Are You Ready To Provide Instruction Via Interactive Satellite Delivery Technology, John E. Turner, Philip A. Reed

STEMPS Faculty Publications

A difficulty for faculty new to teaching at a distance is being able to visualize the scope of needed skills and tasks that will be required of them. The purpose of this project was to provide an empirically-based, self-administered skill enhancement guide for new distance education faculty teaching via interactive satellite broadcast. A modified Delphi approach was used to survey 18 faculty members experienced in distance education from the 6 colleges at a major eastern university. Respondents created a validated task list in phase 1 and determined task criticality and sequencing of task learning in phase 2.

Fumonisin Production In The Maize Pathogen Fusarium Verticillioides: Genetic Basis Of Naturally Occurring Chemical Variation, Robert H. Proctor, Ronald D. Plattner, Anne E. Desjardins, Mark Busman, Robert A. E. Butchko

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

Fumonisins are polyketide-derived mycotoxins produced by the maize pathogen Fusarium verticillioides. Previous analyses identified naturally occurring variants of the fungus that are deficient in fumonisin C-10 hydroxylation or that do not produce any fumonisins. In the current study, gene deletion and genetic complementation analyses localized the C-10 hydroxylation deficiency to a cytochrome P450 monooxygenase gene in the fumonisin biosynthetic gene (FUM) cluster. Sequence analysis indicated that the hydroxylation deficiency resulted from a single nucleotide insertion that caused a frame shift in the coding region of the gene. Genetic complementation localized the fumonisinnonproduction phenotype to the polyketide synthase …

Human Emanations And Related Natural Compounds That Inhibit Mosquito Host-Finding Abilities, Ulrich R. Bernier, Daniel Kline, Kenneth H. Posey

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

One mechanism by which the action of semiochemicals can be classified is based on the behavioral impact within or external to the species of interest. As such, one can classify a chemical as one of the following^2,3:

1. Pheromone, if it results in response between insects of the same species
2. Kairomone, if it results in response in another species that benefits the species receiving the chemical cue
3. Allomone, if it results in response in another species that benefits the species releasing the chemical cue

However, the distinctions can be more specific by classification of chemical cues …

Laboratory Evaluation Of Avian Odors For Mosquito (Diptera: Culicidae) Attraction, S. A. Allan, Ulrich R. Bernier, D. L. Kline

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

Attraction of Culex quinquefasciatus Say, Culex tarsalis Coquillett, Culex nigripalpus Theobald, and Aedes aegypti (L.) to avian and other host odors was investigated in a dual-port olfactometer. Although attraction to a human arm was high for Ae. aegypti (>80%) and low for all Culex spp. (<25%), all species responded similarly to a chicken (55.3-73.6%). Responses of Ae. aegypti, Cx. quinquefasciatus, and Cx. nigripalpus to feathers were low (<20%) but greater than to controls. There was no difference in attraction of Cx. tarsalis to feathers or controls. Responses to CO₂ (5 ml/min) were low for all species (<15%) except Cx. tarsalis, which were moderate (24.5%). When feathers were combined with CO2, the resulting attraction was additive or lower than responses …

Markets For Markets: Origins And Subjects Of Information Markets, Miriam A. Cherry, Robert L. Rogers

All Faculty Scholarship

This Article focuses on why information markets have covered certain subject areas, sometimes of minor importance, while neglecting other subject areas of greater significance. To put it another way, why do information markets exist to predict the outcome of the papal conclave and the Michael Jackson trial, but no information markets exist to predict government policy conclusions, Supreme Court decisions, or the rulings in Delaware corporate law cases? Arguably, from either a dollar value or a social utility perspective, these areas of law and business would be more important than the outcome of, say, the Jackson trial. Why, then, do …

Methods Development And Application Of Two-Dimensional Gel Electrophoresis And Mass Spectrometry In Proteomics, Meena Uma Rajagopal

University of Kentucky Doctoral Dissertations

The development of a highly sensitive ruthenium-based fluorescent staining solution isdescribed in this dissertation. The in-house synthesized ruthenium complex (RuMS)containing both sulfonated and non-sulfonated ligand has detection limit of 1 ng ofprotein that is better than colloidal coomassie, silver and ruthenium complex containingall sulfonated ligands (RuBPS). RuMS stain has 100-fold dynamic range and does notinterfere with subsequent mass spectral identification of proteins. The capability of inhousesynthesis of the staining solution makes it a viable cost-effective alternative to theexpensive commercially available fluorescent stain, Sypro Ruby. The low detection limit,broad linear dynamic range and compatibility with mass spectrometry, make thedevelopment of this …

Interhemispheric Modulation Of Corticomotor Excitability Following I-Wave Periodicity Transcranial Magnetic Brain Stimulation (Itms), Lucy Catherine Millar

Theses : Honours

AIMS: Transcranial Magnetic Stimulation (TMS) has been recently demonstrated to have potential therapeutic benefits by promoting cortical plasticity through modulation of corticospinal excitability. We have previously shown in healthy adult subjects that paired-pulse TMS (1.5ms ISI) applied over Ml at 0.2Hz for 15min (known as iTMS), can raise corticospinal excitability for a period (~10min) that outlasts the intervention. Since interhemispheric changes in corticomotor excitability are considered to have fundamental importance in the control of voluntary movement, and recovery of motor function following unilateral damage, importance is placed on understanding the mechanisms involved. The aims of the current study were therefore …

The Effects Of Light Reduction Treatments On Mobile Epifaunain An Amphibolis Griffithii (Black) Den Hartog Seagrass Ecosystem, Helen Barwick

Theses : Honours

One of the main anthropogenic disturbances to seagrass meadows in Australia is reduction in light availability, through nutrient enrichment or suspended sediments. Dredging can create suspended sediment plumes from the expulsion of particulates into the water column and in tum reduces light penetration to seagrass ecosystems. Preliminary investigations have demonstrated that light reduction for different intensities and durations results in reduced seagrass and epiphytic algae biomass. The main aim of this study was to determine the effects of different intensities and durations of light reduction on epifaunal assemblages in Amphibolis griffithii seagrass meadows in Jurien Bay, Western Australia. This was …

Changes In Demersal Wild Fish Aggregations Beneath A Sea-Cage Fish Farm After The Cessation Of Farming, Fernando Tuya, Pablo Sanchez-Jerez, Tim Dempster, Arturo Boyra, Ricardo Haroun

School of Natural Sciences Publications

Demersal, non-cryptic, wild fish were counted in replicate 100 m2 transects beneath a floating sea-cage fish farm and two nearby sandy locations at Gran Canaria (Canary Islands, eastern Atlantic) four times before and after the cessation of farming. Cessation of farming involved the removal of farmed fish and ceasing of the daily feeding, although farm structures (cages and moorings) remained. A “beyond-BACI” sampling design provided the framework to detect the effect of the cessation of farming, which produced qualitative and quantitative changes in the composition and structure of the fish assemblages beneath the sea-cage fish farm compared with two nearby …

The White Death: Representations Of Salt Affected Landscapes In The Wheatbelt, Grant Currall

Theses : Honours

This exegesis examines the significance of salt-affected landscapes in Western Australia's Wheatbelt, particularly sites affected due to pastoral settlement. It explores ways in which landscape imagery has been constructed and controlled by cultures to represent a particular relationship between settlement and the land. A focus on both American and Australian photographic practitioners and their understanding of landscape aesthetics will be incorporated to reveal how unconventional subject matter like dryland salinity can be re-presented to provide an alternative perspective of cultures relationship with nature in the Wheatbelt. Finally, an enquiry into the impact of national identity on landscape will also explore …

Interactive E-Assessments, Geoffrey Crisp

EDU-COM International Conference

It is useful for teachers to reflect on the future formats that will be necessary for assessment tasks. There is currently much discussion concerning the need for immersive and authentic learning environments. Teachers will need to investigate assessments that mix real and virtual environments, testing declarative knowledge and also conditional and procedural capabilities. Teachers will need to contemplate using assessments that measure approaches to problem solving and student responses in terms of efficiency, ethical considerations and the involvement of others. This image of assessment is still sometime away, but will be within reach in the short term. Are academic staff …