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In Memoriam: Tang Chung Chang (C. C. Tang), 1905-1993, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Obituary of Tang Chung Chang (C. C. Tang), 1905-1993.

Sex Effects On Breed Of Sire Differences For Birth, Weaning, And Yearling Weights, L. Dale Van Vleck, Larry V. Cundiff

Department of Animal Science: Faculty Publications

Weights of males and females can be considered to be correlated traits with different averages and variances. This study attempted to determine whether defining traits as expressed in males or in females would change estimates of breed of sire differences needed to calculate across-breed factors for adjustment of within-breed EPD to across-breed EPD. Records from the US Meat Animal Research Center of progeny of Hereford, Angus, and MARC III composite dams mated to 12 sire breeds that had been used to calculate breed of sire adjustments in 1996 were used. Breeds of sire were Hereford, Angus, Shorthorn, Brahman, Simmental, Limousin, …

Beyond The Grave –The Use And Meaning Of Human Body Parts: A Historical Introduction, Susan C. Lawrence

Department of History: Faculty Publications

In this essay I outline the wide range of ways that human beings have used body parts in the past, primarily within Anglo-American cultural frameworks and experiences. I concentrate on practices much more than on the formation of theories (e.g., development of abstract legal perspectives or philosophical analyses of the "body") or the expression of particular ethical principles (e.g., should body parts be used? should medical researchers be allowed to use tissue samples stored from days before informed consent?). A focus on historical actions, including suggestive comments on how these actions made sense at particular times and places, offers us …

The Evolution Of Primate Malaria Parasites Based On The Gene Encoding Cytochrome B From The Linear Mitochondrial Genome, Ananias A. Escalante, Denise E. Freeland, William E. Collins, Altaf A. Lal

Harold W. Manter Laboratory of Parasitology: Library Materials

We report a phylogenetic analysis of primate malaria parasites based on the gene encoding the cytochrome b protein from the mitochondrial genome. We have studied 17 species of Plasmodium, including 14 parasitic in primates. In our analysis, four species were used for rooting the Plasmodium phylogenetic tree: two from closely related genera (Hepatocystis sp. and Haemoproteus columbae) and two other Apicomplexa (Toxoplasma gondii and Theileria parva). We found that primate malaria parasites form a monophyletic group, with the only exception being the Plasmodium falciparum–Plasmodium reichenowi lineage. Phylogenetic analyses that include two species …

Lindsay M. Black, 1907 To 1997, Myron K. Brakke, D. V. R. Reddy

Department of Plant Pathology: Faculty Publications

Plant pathology and virology lost a pioneer when Lindsay MacLeod Black died on 23 December 1997. We lost a friend and mentor. Black was noted for proving conclusively that a plant virus can multiply in both leafhopper vectors and plants; characterizing unstable, leafhopper-transmitted viruses; and developing insect tissue cultures for studying plant viruses.

A Critical Review Of Design And Use Of Field Tent Shelters In Polar Regions, Xiaoying Winston Yan, Marijane E. England, Karl C. Kuivinen, James J. Potter, Nathan S. Krug

Architecture Program: Faculty Scholarly and Creative Activity

Polar research teams often spend extended periods of time away from base stations, living and working in remote field camps of portable tents. This article reports results of a survey study conducted in 1996 of polar researchers from the United States. The study was about the design and use of portable field tents being deployed in polar areas with regard to safety, health, and well-being from the user's perspective. Preliminary analysis indicates that there existed a number of areas in design and use of the shelters that contributed to concerns of safety, health, and well-being among a considerable number of …

Effects Of Radio Transmitters On Migrating Wood Thrushes, Larkin A. Powell, David Krementz, Jason Lang, Michael J. Conroy

School of Natural Resources: Faculty Publications

We quantified the effects of radio transmitters on Wood Thrushes (Hylocichla mustelina) using 4 yr of banding and telemetry data from Piedmont National Wildlife Refuge, Georgia. Flight performance models suggest that the 1.6-g transmitter shortens the migratory range of wood thrushes by only 60 km, and the estimated migratory range is adequate to accomplish migration even with limited fat stores. We used two strengths of line, 5- and 9- kg test-strength braided Dacron, to attach the transmitters using the thigh-harness method. We recaptured 13 returning radio-marked wood thrushes, seven of which were still marked. Six of the seven birds marked …

Distribution And Derivation Of Mallard Band Recoveries From The Upper Mississippi River, 1961-1989, Larkin A. Powell, Gene Allen Klaasen

School of Natural Resources: Faculty Publications

The Upper MississippRi iver is an importanth abitat for migratingM allards. However,s iltationa nd development threaten the value of this habitat. We used banding data at a regionals cale to determinet he derivationa nd distributiono f Mallard recoveries in the Upper Mississippi to study whether changesi n habitato ccurringd uring1 961-1989w ere reflected in Mallard migration. The Upper Mississippi has attracted a constant proportion of recoveries from SW Saskatchewan, SE Saskatchewan, SW Manitoba and the Missouri River Basin during 1965-1989. We found no changes in Mallard recovery rates during 1965-1989 for any sex/age class banded in these breeding areas (P …

Methylenetetrahydrofolate Reductase And Methionine Synthase: Biochemistry And Molecular Biology, R. G. Matthews, Christal A. Sheppard, C. Goulding

Nebraska College of Law: Faculty Publications

Methylenetetrahydrofolate reductase and cobalamin-dependent methionine synthase catalyze the penultimate and ultimate steps in the biosynthesis of methionine in prokaryotes, and are required for the regeneration of the methyl group of methionine in mammals. Defects in either of these enzymes can lead to hyperhomocysteinemia. The sequences of the human methylenetetrahydrofolate reductase and methionine synthase are now known, and show clear homology with their bacterial analogues. Mutations in both enzymes that are known to occur in humans and to be associated with hyperhomocysteinemia affect residues that are conserved in the bacterial enzymes. Structure/function studies on the bacterial proteins, summarized in this review, …

From Loving To Romer: Homosexual Marriage And Moral Discernment, Richard F. Duncan

Nebraska College of Law: Faculty Publications

The dual-gender marriage requirement does not treat men and women unequally. Instead, it recognizes and celebrates the physical differences between men and women and their obvious sexual complementarity. Traditional marriage laws do not discriminate on the basis of gender; rather, they recognize the equal indispensability of both genders to the institution of marriage. The dual-gender requirement, like the decision in Loving, is animated by a moral sense that discerns the true nature of marriage. As Justice Ginsburg put it so well, most people understand that the two sexes are not fungible and that dual-gender marriages and same-sex unions are …

"They Call Me 'Eight Eyes'": Hardwick'S Respectability, Romer'S Narrowness, And Same-Sex Marriage, Richard F. Duncan

Nebraska College of Law: Faculty Publications

Justice White's landmark opinion in Hardwick has survived both the test of time and the many slings and arrows of outraged scholarship launched at it by law professors who believe the Constitution should be interpreted as codifying the Kama Sutra. The eminent respectability and rightness of Justice White's methodology and reasoning in Hardwick was completely vindicated in Glucksberg, the Supreme Court's latest--and one of its most significant--decisions on the meaning of fundamental rights protected by substantive due process.

In Glucksberg, the Supreme Court reaffirmed an objective historical methodology based upon a careful and precise description of the asserted liberty …

International Security: Multiple Actors, Multiple Threats, Jack M. Beard

Nebraska College of Law: Faculty Publications

COUNTERING THE THREAT POSED BY NON-STATE ACTORS IN THE PROLIFERATION OF WEAPONS OF MASS DESTRUCTION

The collapse of the Soviet Union created unprecedented opportunities for non-state actors to obtain access to nuclear, biological and chemical weapons and their delivery means, often referred to as weapons of mass destruction (WMD). In particular, access to nuclear weapons and related materials, technology and expertise has raised serious concerns. As noted in the 1997 Counterproliferation Review Committee Report to Congress:

The chilling reality is that nuclear materials, technologies, and expertise are more accessible now than at any time in history-due in part to …

Adding Online Computer Methods To Your Repertoire Of Teaching Strategies, Nancy A. Diamond

Professional and Organizational Development Network in Higher Education: Archives

On-line teaching methods offer interesting strategies for teaching whatever you already want to teach. This essay describes a broad range of on-line methods and details the elements necessary for their optimal use.

Megapode Newsletter 12(3)-16(1) (1998-2002), World Pheasant Association, Birdlife International, Ssc Megapode Specialist Group

Galliformes Specialist Group and Affiliated Societies: Newsletters

Volume 12, Number 3 (December 1998)

Editors: Rene W. R. J. Dekker, Darryl N. Jones, and Gary J. Wiles

Project description: Ontogeny of behaviour in the Australian brush-turkey Alectura lathami, Ann Göth

Notes on the nesting grounds of the Moluccan megapode Eulipoa wallacei at Amahai and desa Iha Baru (Elpaputih), South Seram, Indonesia, C. J. Heij

Maleo survey and conservation project, Gillian C. Baker

Nesting biology of the Vanuatu megapode Megapodius layardi on Ambrym, Vanuatu, Tanya Foster

Volume 13, Number 1 (July 1999)

Editors: Rene W. R. J. Dekker, Darryl N. Jones, and Gary J. Wiles

SHOCing news . …

Boletín De El Iucn/Birdlife/Wpa Grupo De Especialistas En Crácidos 6-11 (1998-2000), Iucn, Birdlife International, Wpa Cracid Specialist Group

Galliformes Specialist Group and Affiliated Societies: Newsletters

Volume 6 (March 1998)

Editors: Daniel M. Brooks (English), Alfredo J. Begazo (Spanish), Fábio Olmos (Portuguese)

¡Noticias de Armonia, Santa Cruz, Bolivia! Notícias de Armonia, Santa Cruz, Bolivia, News from Armonia, Santa Cruz, Bolivia!

O raro jacu-de barriga-castanha (Penelope ochrogaster) no Pantanal de Pantanal, Poconé, Matto Grosso, Brazil, Fábio Olmos

The chestnut-bellied guan (Penelope ochrogaster) in the northern Pantanal of Poconé, Matto Grosso, Brazil, Fábio Olmos

Estado de la subespecie guacharaca de utila (Ortalis vetula deschauenseei) en la Isla Utila, Gilles Seutin

Status of the Utila Island subspecies of the plain chachalaca (Ortalis vetula deschauenssei …

Ec98-769 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Fact Sheet 5: Improving Fertilizer Storage And Handling, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt

University of Nebraska-Lincoln Extension: Historical Materials

Fertilizer storage practices If stored safely in a secure location, fertilizers pose little danger to groundwater. Common sense suggests keeping fertilizer dry and out of the way of activities that might rip open a bag or allow rain to enter a bulk container.

Amphicyonidae, Robert Hunt

University of Nebraska State Museum: Mammalogy Papers

The Amphicyonidae occur in North America from late Eocene (~40 Ma) to early late Miocene (~9 Ma), a span of 31 million years. In the North American land mammal biochronology, this diverse family extends from the Duchesnean to the end of the Clarendonian and is especially well represented in the Miocene (~5-24 Ma). In the Old World, amphicyonids survive no longer than in North America: The last European records are Vallesian (Dinotheriensande, Mainz Basin, Germany, Kuss, 1965, Tobien, 1980; Vallés-Penédes Basin, Spain, Crusafont-Pairó and Kurten, 1976), and the last representative may occur at about 9 Ma at Kohfidisch, Austria (latest …

Checklist And ‘‘Pollard Walk’’ Butterfly Survey Methods On Public Lands, Ronald Royer, Jane Austin, Wesley Newton

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

Checklist and ‘‘Pollard Walk’’ butterfly survey methods were contemporaneously applied to seven public sites in North Dakota during the summer of 1995. Results were compared for effect of method and site on total number of butterflies and total number of species detected per hour. Checklist searching produced significantly more butterfly detections per hour than Pollard Walks at all sites. Number of species detected per hour did not differ significantly either among sites or between methods. Many species were detected by only one method, and at most sites generalist and invader species were more likely to be observed during checklist searches …

Ec98-771 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Fact Sheet 8: Improving Household Wastewater Treatment, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt

University of Nebraska-Lincoln Extension: Historical Materials

A properly installed and maintained system for treating and disposing of household wastewater will minimize the impact of that system on groundwater and surfacewater. State and local codes specify how wastewater systems must be designed, installed, and maintained. For example, Title 124 regulates the design, operation, and maintenance of septic tank systems in Nebraska. In addition, federal and state regulations guide the stabilization and land application of wastewater septage.

Microsatellite Evolution: Testing The Ascertainment Bias Hypothesis, Allan M. Crawford, Steven M. Kappes, Korena A. Paterson, Mauricio J. Degotari, Ken G. Dodds, Brad A. Freking, Roger T. Stone, Craig W. Beattie

Roman L. Hruska U.S. Meat Animal Research Center: Reports

Previous studies suggest the median allele length of microsatellites is longest in the species from which the markers were derived, suggesting that an ascertainment bias was operating. We have examined whether the size distribution of microsatellite alleles between sheep and cattle is source dependent using a set of 472 microsatellites that can be amplified in both species. For those markers that were polymorphic in both species we report a significantly greater number of markers (P < 0.001) with longer median allele sizes in sheep, regardless of microsatellite origin. This finding suggests that any ascertainment bias operating during microsatellite selection is only a minor contributor to the variation observed.

A Second-Generation Linkage Map Of The Sheep Genome, Maurico J. Degortari, Brad A. Freking, Rachel P. Cuthbertson, Steven M. Kappes, John W. Keele, Roger T. Stone, Kreg A. Leymaster, Ken G. Dodds, Allan M. Crawford, Craig W. Beattie

Roman L. Hruska U.S. Meat Animal Research Center: Reports

A genetic map of Ovis aries (haploid n = 27) was developed with 519 markers (504 microsatellites) spanning —3063 cM in 26 autosomal linkage groups and 127 cM (female specific) of the X Chromosome (Chr). Genotypic data were merged from the IMF flock (Crawford et al., Genetics 140, 703, 1995) and the USDA mapping flock. Seventy-three percent (370/504) of the microsatellite markers on the map are common to the USDA-ARS U.S. Meat Animal Research Center cattle linkage map, with 27 of the common markers derived from sheep. The number of common markers per homologous linkage group ranges from 5 to …

Trace Elements In The Aquatic Bird Food Chain At The North Ponds, Texaco Refinery Casper, Wyoming, Kimberly Dickerson, Pedro Ramirez Jr.

United States Fish and Wildlife Service: Publications

The objectives of this study were to determine nesting success of aquatic birds, trace element concentrations in the aquatic food chain, and whether trace elements were biomagnifying through the aquatic food chain of ponds at the inactive Texaco Refinery, in Evansville, Wyoming. Trace element concentrations in samples collected from the Texaco Refinery were compared to those found in samples collected from a background site, Pathfinder National Wildlife Refuge.

The ponds at the inactive refinery provided a source of water to aquatic birds in an otherwise arid landscape. Nesting success for shorebirds using an island in Pond 1 was greater than …

Contaminants Information Bulletin: Environmental Contaminants In Sedimente From Oilfield Produced Water Discharge Points, Pedro Ramirez Jr.

United States Fish and Wildlife Service: Publications

Oilfield produced water is generated from the extraction of oil mixed with groundwater. A separator is used to physically remove the water from the oil; however, the produced water can contain residual amounts of oil. Additionally, malfunction of the separator equipment can cause inefficient separation and result in higher amounts of oil in the water. The Wyoming Department of Environmental Quality (WY DEQ) regulates the discharge of produced waters under the National Pollution Discharge Elimination System (NPDES) .WY DEQ permits 10 µg/l of oil in produced water discharged into regulated waters of the state. Produced water discharges are not permitted …

Adaptive Regulation Of Waterfowl Hunting In The U.S., Fred A. Johnson

United States Fish and Wildlife Service: Publications

Introduction

The harvest of renewable natural resources is predicated on the theory of density-dependent population growth (Hilborn et al. 1995). This theory predicts a negative relationship between the intrinsic rate of population growth and population density (i.e., number of individuals per unit of limiting resource) due to intraspecific competition for resources. In a relatively stable environment, unharvested populations tend to settle around an equilibrium where births balance deaths. Populations respond to harvest losses by increasing reproductive output or through decreased natural mortality because more resources are available per individual. Population size eventually settles around a new equilibrium and the harvest, …

Potential Risks Associated With The Legalization Of Exotic Predators Such As The Ferret (Mustela Putorius Furo) In California, Thomas G. Moore, Desley A. Whisson

Vertebrate Pest Conference Proceedings: 18th (1998)

The interest in possessing ferrets as pets has given rise to controversy between the "rights" of the individual to own the pet of their choice and the concerns for protection of wildlife in California. An overview of the legislative history in California illustrates the state's attempts at protecting native wildlife species from exotic wild birds and animals. Concerns as to the potential threats associated with the legalization of ferrets in California are warranted in light of the wildlife damage resulting from the deliberate introduction of ferrets in New Zealand and the non-native red fox in California. A framework to assess …

Laboratory Efficacy Study With A Warfarin Bait To Control The Black-Tailed Prairie Dog, Jeff J. Mach

Vertebrate Pest Conference Proceedings: 18th (1998)

Control of the black-tailed prairie dog (Cynomys ludovicianus) is important for the reclamation of pasture ground for domestic cattle and limiting the spread of disease to humans and other wildlife. Six different concentrations of warfarin bait were fed to prairie dogs to determine mortality. Without the access to dietary vitamin K, the prairie dogs were susceptible to the warfarin bait. However, some of the prairie dogs recovered and survived the test after bait exposure was terminated. This could be due to physiological differences and the availability of fat-soluble vitamin K. The six different concentrations of warfarin consumed by …

Modified Bait Stations For California Ground Squirrel Control In Endangered Kangaroo Rat Habitat, Desley A. Whisson

Vertebrate Pest Conference Proceedings: 18th (1998)

California ground squirrels are a major problem in areas that also support populations of endangered kangaroo rats. Traditional bait stations can be easily modified to exclude kangaroo rats, thereby providing landowners with a method of controlling ground squirrels that mitigates hazards to endangered kangaroo rats. Specifications for the design and use of modified bait stations are discussed.

Ec98-755 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Risk Fact Sheet 13: Improving Milking Center Effluent Treatment, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt

University of Nebraska-Lincoln Extension: Historical Materials

Effluent from the dairy milking center, including discharges from the milking parlor (manure, feed solids, hoof dirt) and milkhouse (bulk tank and pipeline rinse water and detergent used in cleaning), is commonly disposed of in a variety of ways. Milking center effluent offers several unique challenges due to the presence of: 1. Large volumes of contaminated water which can overwhelm soil absorption systems. 2. Milk solids and fats and manure solids which plug many systems. 3. Cleaning sanitizers which reduce bacterial breakdown of solids. When these systems fail, effluent will become a risk to surface and groundwater quality.

Ec98-762 Farm*A*Syst Nebraska’S System For Assessing Water Contamination Fact Sheet 6: Improving Petroleum Product Storage, Robert Grisso, Delynn Hay, Paul J. Jasa, Richard K. Koelsch, Sharon Skipton, Wayne Woldt

University of Nebraska-Lincoln Extension: Historical Materials

Petroleum product storage is an area of great concern for groundwater safety. It’s not uncommon for fuel to leak into aquifers and pollute the drinking water of a family or even a community, and it can be very costly for the landowner. Petroleum product storage is regulated by laws regarding fire safety and air quality as well. Therefore, petroleum product storage must be evaluated from various perspectives. This factsheet examines some important aspects of petroleum product storage: where the tank is located on your property, the type of tank, how to monitor the tank, reduction of losses from aboveground tanks, …

Marine Mammals And Persistent Ocean Contaminants

United States Marine Mammal Commission

Marine Mammals and Persistent Ocean Contaminants