Digital Commons Network^™

Field Notes: Scincella Lateralis, Timothy R. Brophy

Faculty Publications and Presentations

No abstract provided.

Reproductive Success Across The Black-Capped Chickadee (Poecile Atricapillus) And Carolina Chickadee (P. Carolinensis) Hybrid Zone In Ohio, C. L. Bronson, Thomas C. Grubb, Jr., Gene D. Sattler, Michael J. Braun

Faculty Publications and Presentations

Black-capped Chickadees (Poecile atricapillus) and Carolina Chickadees (P. carolinensis) hybridize in an east-west band from New Jersey to Kansas. Within the past century, the Ohio portion of this hybrid /one and the Carolina Chickadee range to the south have been moving northward, whereas the Black-capped Chickadee range has retracted. In Ohio, we characterized the genetic composition of the hybrid zone using five diagnostic molecular loci. Although there was no evidence of assortative mating in the center of the hybrid zone, we found a relative paucity of genetically intermediate breeding females as compared with breeding males. That suggests viability selection against …

Engaged And Engaging Science: A Component Of A Good Liberal Education, Judith A. Ramaley, Rosemary R. Haggett

Higher Education

We live in a period of rapid and complex socioeconomic change. The forces driving this change are reshaping the educational landscape in ways that we are only beginning to understand. Many recent reports and books, including the 2002 report from the Association of American Colleges and Universities (AAC&U), Greater Expectations: A New Vision for Learning as a Nation Goes to College, have explored the implications of these changes and have identified growing gaps between the intentions and assumptions of faculty, the actual experiences of students, and the demands of the workplace. The lack of clarity of purpose in undergraduate education …

Cs 637 Rural Community And Moral Concerns, James R. Thobaben

Syllabi

Required Texts: Caudill, Harry M., Night Comes to the Cumberlands Ashland, KY: Jesse Stuart Foundation, 2001 (re- publication) Conley, Kevin, Stud New York NY: Bloomsbury, 2002. Covington, Dennis, Salvation on Sand Mountain New York NY: Penguin Books, 1995 Evans, Vos & Wright (ed), Biblical Holism and Agriculture Pasadena CA: William Carey Library, 2003. Jones, Loyal, Faith and Meaning in the Southern Uplands Urbana IL: University of Illinois Press, 1999. Logsdon, Gene, The Contrary Farmer White River Junction VT: Chelsea Green Publishing Company, 1994. Kline, David, Great Possessions: An Amish Farmer’s Journal Wooster OH: Wooster Book Company, 2001/1990. Poage, Ben The …

Instructions In Inequality: Development, Human Rights, Capabilities, And Gender Violence In School, Erika George

Michigan Journal of International Law

This Article argues that the international community's gender equality targets will not be realized by 2015 because the problems associated with sexual violence against girls in schools are situated at an intersection of contested conceptual divides between human rights (civil and political liberties) and development aims (social and economic needs). Cracks in the conceptual foundations of both the liberal and utilitarian theories of justice and equality, which support traditional human rights advocacy and economic development plans, respectively render each approach inadequate to fully identify and address the grave danger sexual violence and harassment in schools pose to educational equality. In …

Kentucky Traffic Collision Facts 2005 Report, Kentucky Transportation Center, Kentucky State Police

Kentucky Transportation Center Research Report

KENTUCKY’S TRAFFIC COLLISION FACTS report for 2005 is based on collision reports submitted to the Kentucky State Police Records Branch. As required by Kentucky Revised Statutes 189.635, “every law enforcement agency whose officers investigate a vehicle accident of which a report must be made...shall file a report of the accident...within ten days after investigation of the accident upon forms supplied by the bureau.” The stated purpose of this requirement is to utilize data on traffic collisions for such purposes as will improve the traffic safety program in the Commonwealth. Data contained in this report are based solely on the observations …

Biotic Resistance To Invasion: Native Predator Limits Abundance And Distribution Of An Introduced Crab, Catherine E. De Rivera, Greg M. Ruiz, Anson Hines, Paul Jivoff

Environmental Science and Management Faculty Publications and Presentations

Introduced species frequently escape the natural enemies (predators, competitors, and parasites) that limit their distribution and abundance in the native range. This reduction in native predators, competitors, and parasites may result in ecological release in the introduced range. However, biological interactions also can limit the establishment and spread of nonnative populations. The extent to which such biotic resistance occurs is poorly resolved, especially for marine ecosystems. Here we test whether a native predator, the blue crab Callinectes sapidus, affects the abundance and geographic range of the introduced European green crab Carcinus maenas in eastern North America. Both crab species …

Gideon In White/Gideon In Black: Race And Identity In Lawyering, Anthony V. Alfieri

Articles

No abstract provided.

Seasonal Acceptance Of Fourwing Saltbush By Sheep When Crested Wheatgrass Is The Alternative, Christine W. Royer, R. D. Horrocks, Val J. Anderson, Stephen B. Monsen

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

Many sagebrush-grass ranges have been seeded to crested wheatgrass [Agropyron desertorum (Fischer ex Link) Shultes]. These ranges are generally nutritionally inadequate for sheep (Ovis aries L.), except for short grazing periods in the spring and fall. To increase production and diversity, particularly crude protein for late-season grazing, fourwing saltbush [Atriplex canescens (Pursch.) Nutt.] was planted in an existing stand of crested wheatgrass. Quantification of sheep forage preferences on these improved ranges aids in determining the length of the grazing season and the extent to which shrubs provide the supplemental nutrition required. This seasonal grazing study was conducted …

Plant Functional Group Diversity As A Mechanism For Invasion Resistance, Monica L. Pokorny, Roger L. Sheley, Catherine A. Zabinski, Richard E. Engel, Tony J. Svejcar, John J. Borkowski

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

A commonly cited mechanism for invasion resistance is more complete resource use by diverse plant assemblages with maximum niche complementarity. We investigated the invasion resistance of several plant functional groups against the nonindigenous forb Spotted knapweed (Centaurea maculosa). The study consisted of a factorial combination of seven functional group removals (groups singularly or in combination) and two C. maculosa treatments (addition vs. no addition) applied in a randomized complete block design replicated four times at each of two sites.

Phosphorus Dynamics In Broiler Litter-Amended Soils, A. Adeli, K. R. Sistani, M. F. Bal'a, D. E. Rowe

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

Because land application of broiler litter is commonly made in the spring before cropping season and in the fall, it is essential to understand how environmental variations, such as temperature, affect the phosphorus (P) dynamics. A laboratory incubation study was conducted at Waste Management and Forage Research Unit, USDAARS with the objective of determining the effects of temperature and soil properties on water-soluble P (WSP), Mehlich 3 P, and P fractions in broiler litter-amended soils. Broiler litter was mixed with three soils (Leeper silty clay, Grenada silt loam, and Ruston sandy loam) at the rate of 10 Mg ha^{-1 …}

Molecular Evolution Of Herbicide Resistance To Phytoene Desaturase Inhibitors In Hydrilla Verticillata And Its Potential Use To Generate Herbicide-Resistant Crops, R. S. Arias, Michael D. Netherland, Brian E. Scheffler, Atul Puri, Franck E. Dayan

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

Hydrilla [Hydrilla verticillata (Lf) Royle] is one of the most serious invasive aquatic weed problems in the USA. This plant possesses numerous mechanisms of vegetative reproduction that enable it to spread very rapidly. Management of this weed has been achieved by the systemic treatment of water bodies with the herbicide fluridone. At least three dioecious fluridone-resistant biotypes of hydrilla with two- to fivefold higher resistance to the herbicide than the wild-type have been identified. Resistance is the result of one of three independent somatic mutations at the arginine 304 codon of the gene encoding phytoene desaturase, the molecular target …

Ammonia: Measurement Issues, Lowry A. Harper

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

Ammonia (NH₃) is a colorless gas under standard conditions, whose pungent odor is easily discernible at concentrations above about 10 ppm, and to some persons, down to almost 1 ppm. It is the major basic neutralizing gas in the atmosphere so it has an important role in the neutralization of atmospheric acids generated by the oxidation of sulfur dioxide (SO₂) and nitrogen oxides (NO_x). As a result, the reaction product of NH3, ammonium (NH₄ ⁺), forms an aerosol that is a major component of atmospheric aerosols and in precipitation (Asman et al., …

Effect Of Oxygen Management On Culture Performance Of Channel Catfish In Earthen Ponds, Eugene L. Torrans

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

Aeration allows for higher feeding rates and increased production of channel catfish Ictalurus punctatus in intensive and semi-intensive aquaculture systems. However, the effect of specific dissolved oxygen (DO) concentrations on various production parameters remains unknown. The purpose of this 2-year study was to determine the effect of daily minimum DO concentration on channel catfish production. Six 0.1-ha ponds were each equipped with three 0.37-kW (0.5-hp) aerators and one 0.37-kW circulator. Dissolved oxygen concentrations were monitored and recorded with a commercial oxygen monitor that also controlled aeration. During both years, aeration in the high-oxygen treatment was initiated when the DO concentration …

Abundance Of Plodia Interpunctella (Hubner) And Cadra Cautella (Walker) Infesting Maize Stored On South Carolina Farms: Seasonal And Non-Seasonal Variation, Richard T. Arbogast, Shahpar R. Chini

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

Seasonal trends and short-term fluctuations in abundance of Plodia interpunctella (Hubner) and Cadra cautella (Walker) infesting maize stored on two South Carolina farms were studied during three storage seasons (September 1990–June 1993). Coils of corrugated paper placed on the grain surface were used to trap mature larvae seeking pupation sites. Temperatures in the grain (18-cm-deep) and in the bin headspace were recorded hourly, and grain moisture content was measured weekly. Weekly mean numbers of moth larvae, and adults of two natural enemies, trapped in the coils were used for tracking changes in their abundance over time. The most significant findings …

Carbaryl Resistance In Mexican Strains Of The Southern Cattle Tick (Acari: Ixodidae), Andrew Y. Li, Ronald B. Davey, John E. George

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

Susceptibility to carbaryl in six Mexican strains of the southern cattle tick, Boophilus microplus (Canestrini), was evaluated with the Food and Agricultural Organization larval packet test. Tick strains from the cattle fever tick quarantine zone in Texas were more susceptible to carbaryl than to coumaphos or diazinon. Compared with the susceptible reference (Gonzalez) strain, Mexican tick strains demonstrated 10.9Ð59.5-fold resistance to carbaryl. SigniÞcant cross-resistance was found between carbaryl and the organophosphate acaricides coumaphos and diazinon. Bioassay results with synergists suggested that metabolic detoxification mechanisms did not play a major role in carbaryl resistance. Resistance to carbaryl was likely conferred by …

Maintenance Of A Narrow Host Range By Oxyops Vitiosa; A Biological Control Agent Of Melaleuca Quinquenervia, G. S. Wheeler

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

Host range expansion in insect herbivores is often thought to be mediated by several factors, principal among them are secondary plant metabolites. In weed biological control, the host range of a prospective agent is one of the most important considerations in its implementation. Extensive host testing tests seek to determine the behavioral acceptance and nutritional value of different test plant species to the potential agent. A list of test plants is compiled that comprises species that are close taxonomic relatives of the target weed plus other species of economic or ecologic importance. The host testing of the Melaleuca quinquenervia biological …

Postweaning Performance Of Hair And Wool Sheep And Reciprocal-Crosses On Pasture And In Feedlot, M. A. Brown, H. S. Mayeux

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

Lambs from three diallel-mating plans (Dorset-St. Croix, n=140; Rambouillet-Gulf Coast, n=80; Katahdin-Suffolk, n=78) and a terminal-cross mating plan (Suffolk rams mated to Dorset, St. Croix and reciprocal-cross ewes, n=100) were used to evaluate postweaning grazing performance of traditional meat breeds and tropically adapted breeds of sheep.

Integration Of Co 2 Flux And Remotelysensed Data For Primary Production And Ecosystem Respiration Analyses In The Northern Great Plains: Potential For Quantitative Spatial Extrapolation, Tagir G. Gilmanov, Larry L. Tieszen, Bruce K. Wylie, Larry B. Flanagan, Albert B. Frank, Marshall R. Haferkamp, Tilden P. Meyers, Jack A. Morgan

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

Aim Extrapolation of tower CO₂ fluxes will be greatly facilitated if robust relationships between flux components and remotely sensed factors are established. Long-term measurements at five Northern Great Plains locations were used to obtain relationships between CO₂ fluxes and photosynthetically active radiation (Q), other on-site factors, and Normalized Difference Vegetation Index (NDVI) from the SPOT VEGETATION data set.

Immunoreactivity Of The Mycobacterium Avium Subsp. Paratuberculosis 19-Kda Lipoprotein, Jason Fj Huntley, Judith R. Stabel, John P. Bannantine

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

Background: The Mycobacterium tuberculosis 19-kDa lipoprotein has been reported to stimulate both T and B cell responses as well as induce a number of Th1 cytokines. In order to evaluate the Mycobacterium avium subsp. paratuberculosis (M. avium subsp. paratuberculosis) 19-kDa lipoprotein as an immunomodulator in cattle with Johne's disease, the gene encoding the 19-kDa protein (MAP0261c) was analyzed.

Results: MAP0261c is conserved in mycobacteria, showing a 95% amino acid identity in M. avium subspecies avium, 84% in M. intracellulare and 76% in M. bovis and M. tuberculosis. MAP0261c was cloned, expressed, and purified as a fusion protein with the maltose-binding …

The Complete Genome Sequence Of Mycobacterium Avium Subspecies Paratuberculosis, Lingling Li, J. P. Bannantine, Qing Zhang, Alongkon Amonsin, Barbara J. May, David Alt, Nilanjana Banerji, Sagarika Kanjilal, Vivek Kapur

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

We describe here the complete genome sequence of a common clone of Mycobacterium avium subspecies paratuberculosis (Map) strain K-10, the causative agent of Johne’s disease in cattle and other ruminants. The K-10 genome is a single circular chromosome of 4,829,781 base pairs and encodes 4,350 predicted ORFs, 45 tRNAs, and one rRNA operon. In silico analysis identified >3,000 genes with homologs to the human pathogen, M. tuberculosis (Mtb), and 161 unique genomic regions that encode 39 previously unknown Map genes. Analysis of nucleotide substitution rates with Mtb homologs suggest overall strong selection for a vast majority of these shared mycobacterial …

Frost Depth, Brenton S. Sharratt, Donald K. Mccool

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

Freezing and thawing of soil is a common occurrence throughout the world. Indeed, approximately 50% of the Earth landmass is frozen at some time during the annual cycle, with 20% of the land underlain by permafrost (Sharratt et al., 1997). Seasonal freezing of soils with sparse vegetation and snow cover can occur to depths of 3.5 m (Kennedy & Sharratt, 1997; Shul’gin, 1965) while seasonal frost has been found to penetrate to depths of >6 m below paved runways (Carlson & Kersten, 1953). The extensiveness of soil freezing and the impact of freezing and thawing on the physical, chemical, and …

Using Gis In Areawide Pest Management: A Case Study In South Dakota, Amber A. Beckler, D. Wade French, Laurence D. Chandler

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

Infestations of corn rootworms (Coleoptera: Chrysomelidae) create economic and environmental concerns in the Corn Belt region of the United States. To supplement the population control tactics of areawide pest management programs, we believe that a better understanding of the spatial relationships between biotic and abiotic or physical factors at the landscape scale is needed. Our research used several geographical information systems (GIS) and spatial analytical techniques to examine relationships between corn rootworm metapopulation dynamics, soil texture, and elevation. Within GIS, several spatially explicit procedures were used that include an interpolation technique, spatial autocorrelation analysis, and contingency analysis. Corn rootworm metapopulation …

Comparative Analysis Of 87,000 Expressed Sequence Tags From The Fumonisin-Producing Fungus Fusarium Verticillioides, Daren W. Brown, Foo Cheung, Robert H. Proctor, Robert A. E. Butchko, Li Zheng, Yuandan Lee, Teresa Utterback, Shannon Smith, Tamara Feldblyum, Anthony E. Green, Ronald D. Plattner, David F. Kendra, Christopher D. Town, Catherine A. Whitelaw

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

Fusarium verticillioides (teleomorph Gibberella moniliformis) is a pathogen of maize worldwide and produces fumonisins, a family of mycotoxins that have been associated with several animal diseases as well as cancer in humans. In this study, we sought to identify fungal genes that affect fumonisin production and/or the plant–fungal interaction. We generated over 87,000 expressed sequence tags from nine different cDNA libraries that correspond to 11,119 unique sequences and are estimated to represent 80% of the genomic complement of genes. A comparative analysis of the libraries showed that all 15 genes in the fumonisin gene cluster were differentially expressed. …

Effect Of Hydrodynamic Pressure Treatment And Cooking On Inactivation Of Escherichia Coli O157:H7 In Blade-Tenderized Beef Steaks, J. R. Patel, A. C. Williams-Campbell, M. N. Liu, M. B. Solomon

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

The efficacy of hydrodynamic pressure (HDP) treatment for inactivation of Escherichia coli O157:H7 in blade-tenderized beef steaks was studied. Beef steaks (N = 48) were inoculated with a five-strain cocktail of Escherichia coli O157:H7 and treated with blade tenderization (BT), HDP or a combination of BT followed by HDP (BTH). Control and treated steaks were cooked to 54.4C (undercooked), 62.8C (medium rare) and 71.1C (medium) on open-hearth Farberware grills. HDP treatment reduced E. coli O157:H7 populations by 0.3 log10 cfu/g, which was not different (P> 0.05) from untreated controls. At each endpoint cooking temperature, E. coli O157:H7 survival was always …

The Cotton And Sugar Subsidies Decisions: Wto's Dispute Settlement System Rebalances The Agreement On Agriculture, Stephen J. Powell, Andrew Schmitz

UF Law Faculty Publications

As far back as David Ricardo's shattering insight as to comparative advantage in 1817, agriculture has enjoyed special favor in trade. The unique place of farming was so well established by the time the 1947 General Agreement on Tariffs and Trade ("GATT") was negotiated that GATT's tight disciplines on government interference with free trade not only exempted government protections to growers, but in fact were drafted to be fully consistent with the agricultural policies of the major signatories. While it would be an exaggeration to argue that GATT' s first half century was without impact on agricultural benefits, the sector …

Effective Use Of War Stories In Teaching Evidence, Michael L. Seigel

UF Law Faculty Publications

There are many ways to teach any law course successfully, including Evidence. It can be approached from a very theoretical perspective or a very practical one. Some professors still use the tried and true case method, while others have moved more toward a problem-oriented approach. Others use movie clips to illustrate important points. A minority of professors have even adopted a NITA approach, essentially teaching Evidence through Trial Practice. This Essay does not advocate any particular method for teaching Evidence. It does take the position, however, that if an Evidence professor has some practical experience, he or she would be …

When The Truth Is Not Enough: Tissue Donation, Altruism, And The Market, Michelle Oberman

Faculty Publications

No abstract provided.

Different Voicing Of Welcomeness: Relational Reasoning And Sexual Harassment, Margaret Moore Jackson

North Dakota Law Review

No abstract provided.

Specialiter: The Language Of The Body And Bodies In The Letters Of Heloise, Carmel Posa

Theology Papers and Journal Articles

Specialiter: A Theological Hermeneutic in the Letters of Heloise

It is possible to read both the love letters and the later correspondence of Heloise and Abelard from a theological and philosophical perspective of the body, particularly the “reasoning female body”, and bodies as articulated by the psychoanalytic perspective of sexual difference and alterity in the writings of French feminist and philosopher, Luce Irigaray. What becomes evident and highly significant, in this reading, could be referred to as Heloise’s distinctively “incarnational form of language”. Heloise’s is a language that refuses to erase the concepts of essential embodiment and sexual difference throughout …