Life Sciences Commons^™

Viola Pratincola Greene, John E. Ebinger

Specimens by Name

No abstract provided.

Does A Rigid Body Limit Maneuverability?, Jeffrey A. Walker Phd

Faculty Publications

Whether a rigid body limits maneuverability depends on how maneuverability is defined. By the current definition, the minimum radius of the turn, a rigid-bodied, spotted boxfish Ostracion meleagris approaches maximum maneuverability, i.e. it can spin around with minimum turning radii near zero. The radius of the minimum space required to turn is an alternative measure of maneuverability. By this definition, O. meleagris is not very maneuverable. The observed space required by O. meleagris to turn is slightly greater than its theoretical minimum but much greater than that of highly flexible fish. Agility, the rate of turning, is related to maneuverability. …

Is It Killing? Jodie, Mary & God, M. Therese Lysaught

Institute of Pastoral Studies: Faculty Publications and Other Works

No abstract provided.

Structural And Functional Conservation At The Boundaries Of The Chicken Β-Globin Domain, Noriko Saitoh, Adam C. Bell, Felix Recillas-Targa, Adam G. West, Melanie A. Simpson, Michael Pikaart, Gary Felsenfeld

Department of Biochemistry: Faculty Publications

We show that the 3' boundary of the chicken β -globin locus bears striking structural similarities to the 5' boundary. In erythroid cells a clear transition in DNase I sensitivity of chromatin at the 3' end of the locus is observed, the location of this transition is marked by a constitutive DNase I hypersensitive site (HS), and DNA spanning this site has the enhancer-blocking capacity of an insulator. This HS contains a binding site for the transcription factor CTCF. As in the case of the 5' insulator, the CTCF site is both necessary and sufficient for the enhancer-blocking activity of …

The Effects Of Biotechnology On Concentration And Structure In The Agricultural Inputs Industry, Konstantinos Giannakas, Murray Fulton

Cornhusker Economics

In the last five years, biotechnology has emerged as a major focus of interest in agriculture. This article focuses on one of the many questions that have arisen around this new technology. In particular, the purpose of the paper is to identify the scope and significance of the links between biotechnology and the structure and conduct of the agricultural inputs industry and to develop a framework for analyzing the distribution of the benefits of innovations due to biotechnology.

Accessory Cell Defect In Unresponsiveness Of Neonates And Aged To Polysaccharide Vaccines., Subbarao Bondada, H Wu, D A Robertson, R L Chelvarajan

Microbiology, Immunology, and Molecular Genetics Faculty Publications

T independent antigens elicit antibody responses in the absence of carrier specific T helper cells but require signals from accessory cells (macrophages and dendritic cells) or specific cytokines. They are further subdivided into TI-1 and TI-2 categories based on the ability of TI-1 but not TI-2 antigens to elicit immune responses from neonates. Most bacterial polysaccharides including the pneumococcal polysaccharide vaccines belong to the TI-2 class. It is hypothesized that defects in accessory cell function play a critical role in the failure of neonates to respond to such TI-2 antigens. Immune responses to these TI-2 stimuli are also reduced in …

Humulus Lupulus L., Mary Ann Feist, Loy R. Philippe, Connie Carroll, Greg Spyreas

Specimens by Name

No abstract provided.

Marketing: A Changing Concept In Changing Times, Allen Prosch

Cornhusker Economics

Pork Powerhouses 2000, the annual report from Successful Farming magazine changed this year when they recast the report as the 50 largest commercial pork producers in North America. Recognizing the movement of pork production in the international sector, while not innovative in itself, indicates the changes in agriculture taking place in the world. The minimum number of sows to make the list increased sixty-six percent (66%) from 1999's 7,200 sows to 12,000 sows this year. Eight Canadian firms made the list this year with a total of 202,200 sows.

Lysimachia Lanceolata Walter, John E. Ebinger

Specimens by Name

No abstract provided.

Spiranthes Cernua (L.) Rich., John E. Ebinger

Specimens by Name

No abstract provided.

Spiranthes Cernua (L.) Rich., John E. Ebinger

Specimens by Name

No abstract provided.

Spiranthes Cernua (L.) Rich., John E. Ebinger

Specimens by Name

No abstract provided.

Comparison Between Two Analytical Methods For Fecal Coliform Analysis In Natural Water: Membrane Filtration And Multiple Tube Fermentation, Mona M. Hafez

Theses & Honors Papers

This study compares two different analytical methods for the determination of coliform bacteria within natural waters. The two methods are: 1) membrane Filtration, and 2) multiple tube fermentation. Water samples from ten different locations within the Appomattox River watershed were collected by technicians from the Piedmont Soil and Water Conservation District and the Piedmont Region TMDL Initiative in Farmville, Virginia.

The Membrane filtration (MF) method utilizes m-FC broth to isolate and differentiate total fecal coliform bacteria (E.coli, Klebsiella, Pseudomonas) in natural water samples. A 1% dilution of each water sample is filtered through a 0.45 micron (um) Millipore filter …

Spiranthes Ovalis Lindl., John E. Ebinger

Specimens by Name

No abstract provided.

Vitis Vulpina L., Bob Edgin

Specimens by Name

No abstract provided.

Acer Negundo L., John E. Ebinger

Specimens by Name

No abstract provided.

Acer Negundo L., John E. Ebinger

Specimens by Name

No abstract provided.

Myoporum Montanum R. Br., K. D. Hill

Specimens by Name

No abstract provided.

Vitis Aestivalis F.Michx., Bob Edgin

Specimens by Name

No abstract provided.

Morus Alba Var. Tatarica (L.) Ser., Bob Edgin

Specimens by Name

No abstract provided.

Acer Negundo L., Bob Edgin

Specimens by Name

No abstract provided.

Acer Saccharum Marshall, John E. Ebinger

Specimens by Name

No abstract provided.

Vitis Vulpina L., Bob Edgin

Specimens by Name

No abstract provided.

Acer Negundo L., John E. Ebinger

Specimens by Name

No abstract provided.

Acer Saccharum Marshall, Bob Edgin

Specimens by Name

No abstract provided.

Coding Spreadsheets For Intervention Decisions In Wildlife Damage Management, Ray T. Sterner, H. Nicole Lorimer

Wildlife Damage Management Conference

Sterner (In press) described the use of a priori, theoretical analyses of crop/resource savings and benefit:cost ratios as a way of making intervention decisions in wildlife damage management. Iterative (1-variable-changed-at-a-time) calculations of these economic indices were computed for the use of zinc phosphide baits to control vole (Microtus spp.) populations in alfalfa (Medicago sativa). Results showed that indices displayed transitive effects -- greater net savings and benefit:cost ratios were related to larger field-size, crop-damage and bait-effectiveness variables, but smaller bait-application fees. Ratios varied between 0.40 and 6.45, with -5-10% vole-caused damage required to produce returns on investments equal to the …

Porcine Zona Pellucida Vaccine (Zonacon) As An Immunocontraceptive In Deer, Lowell A. Miller, Gary J. Killian, Paul D. Curtis

Wildlife Damage Management Conference

Research on a PZP contraceptive vaccine was performed at 2 sites; Penn State University and Seneca Army Depot in upper New York. The Penn State study included immune response, hormone analysis, fawning and behavioral analysis. The Seneca depot studied behavioral and fawning response in a semi-free ranging setting. At Penn State University, in a 7 year study, does were actively immunized for two years resulting in a 90% reduction in fawns. They were followed for 5 more years to determine if the effect was reversible. The reduction in fawning over the 7 years was 72%. Most deer returned to fertility …

What Are The Research Needs And Skills For The Future?, Richard D. Curnow

Wildlife Damage Management Conference

One can be a student of Tom Peters, management visionary and futurist, or Gary San Julian, a leader in the academics of wildlife damage management (WDM), but that is not necessary to be impressed and excited by the rapid trends and unpredictable events that are altering how we think about and attempt to manage the nation's precious wildlife resources. Because of the boundless propensity of mankind to develop, inhabit, and alter the landscape, wildlife managers of today and the future require different strategies, tools, and skills than those who did such a fine job of conservation and management in past …

What Will The Disease Issues Of The Future Be?, Robert G. Mclean

Wildlife Damage Management Conference

The major categories of diseases of the future involving wildlife are zoonotic diseases of public health importance, domestic animal diseases of economic importance, and wildlife diseases and health of wildlife importance. The existing patterns of these diseases include exotic, introduced diseases (West Nile virus - WNV), emerging diseases (Lyme disease), re-emerging diseases (animal rabies), and continuing diseases (leptospirosis). Some significant emerging public health diseases are WNV, hantavirus, Lyme disease, hemorrhagic E. coli 0157:H7, and antibiotic resistant bacteria. Emerging domestic animal diseases also include WNV, E.coli 0157:H7, salmonella enterica, and spongiform encephalopathies. Whereas, emerging wildlife diseases are WNV, particularly in Corvidae, …

Effects Of Intense Deer Herbivory On The Herbaceous Understory At Trillium Trail, Tiffany Knight, Susan Kalisz, Lisa Smith, Joann Davis

Wildlife Damage Management Conference

Due to a synergism of many human-mediated factors, white-tailed deer (Odocoileus virginianus) populations have increased dramatically throughout many forests throughout the northeastern North America over the last 50 years. The increase in deer populations negatively impacts plants through a variety of mechanisms, which can include increased consumption, trampling, and soil compaction. To preserve the plants in our forests, managers need to understand both how increases in the deer population impact the overall plant community as well as the individual plant species within the community. In general, the impact of deer presence on the overall plant community has been studied by …