Digital Commons Network^™

The Mount Feather Diamicton Of The Sirius Group: An Accumulation Of Indicators Of Neogene Antarctic Glacial And Climatic History, G. A. Wilson, J. A. Barron, A. C. Ashworth, R. A. Askin, J. A. Carter, M. G. Curren, D. H. Dalhuisen, E. I. Friedmann, D. G. Fyodorov-Davidov, D. A. Gilichinsky, M. A. Harper, David M. Harwood, J. F. Hiemstra, T. R. Janecek, K. J. Licht, V. E. Ostroumov, R. D. Powell, E. M. Rivkina, S. A. Rose, A. P. Stroeven, P. Stroeven, J. J. M. Van Der Meer, M. C. Wizevich

Department of Earth and Atmospheric Sciences: Faculty Publications

A paucity of data from the Antarctic continent has resulted in conflicting interpretations of Neogene Antarctic glacial history. Much of the debate centres on interpretations of the glacigene Sirius Group strata that crop out as discrete deposits along the length of the Transantarctic Mountains and in particular on its age and the origin of the siliceous microfossils it encloses. Pliocene marine diatoms enclosed within Sirius Group strata are inferred to indicate a dynamic East Antarctic ice sheet that was much reduced, compared with today, in the early-middle Pliocene and then expanded again in the late Pliocene. However, the geomorphology of …

Revision Of Paraminota Scherer (Coleoptera: Chrysomelidae), Alexander Konstantinov

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

Paraminota is revised and Chabriella Medvedev, 1990 and Schawalleria Medvedev, 1990 are synonymized with Paraminota. Chabriella minuta Medvedev, 1990 is synonymized with Schawalleria lamprosomoides Medvedev, 1990. A new species, P. lauribina from Nepal is described. A key to species of Paraminota and illustrations of all these taxa are provided.

Cropwatch No. 2002-16, July 12, 2002, Lisa Brown Jasa

Crop Watch (1994–2005)

Inside

Management tips……….148

Field updates……….……….148

Earworms in corn……….……….148

Irrigating soybeans ……….……….150

CRP grazing, haying……….………. 151

New disease pubs……….……….151

Corn rootworm beetles……….……….153

Wheat straw value……….……….154

Weed-loving beetles……….……….154

Post-harvest weeds……….……….155

Check insecticide label……….……….156

Wildlife Damage Management Research Needs: Perceptions Of Scientists, Wildlife Managers, And Stakeholders Of The Usda/Wildlife Services Program, Richard L. Bruggers, Richard Owens, Thomas Hoffman

United States Department of Agriculture Wildlife Services: Staff Publications

This paper presents the results of a nationwide research needs assessment of the important wildlife-human conflict issues and associated research needs of the USDA:APHIS-Wildlife Services (WS) program and its stakeholders. Thirty-six WS State Directors, 23 WS/National Wildlife Research Center (NWRC) scientists and 6 members of the National Wildlife Services Advisory Committee (NWSAC) to the US Secretary of Agriculture responded to a request for participation. This paper compares these current research needs with previous regional and national research needs assessments for wildlife damage management in the United States. Important national problems identified included issues related to aviation, timber, agriculture, aquaculture, and …

Sustained Evaluation Of The Effectiveness Of Detector Dogs For Locating Brown Tree Snakes In Cargo Outbound From Guam, Richard M. Engeman, Daniel S. Vice, Darryl York, Kenneth S. Gruver

United States Department of Agriculture Wildlife Services: Staff Publications

The accidental introduction of the brown tree snake (Boiga irregularis) to Guam has resulted in the extirpation of most of the island's native terrestrial vertebrates, has created a health hazard to infants and children, and has resulted in economic losses. The high brown tree snake population densities on Guam, the species' adaptations for successful dispersal, and Guam's position as a focal point for commercial and military cargo shipments have created a high level of concern that brown tree snakes could spread from Guam to colonize other vulnerable locations. Cargo inspections using teams of handlers and their detector dogs …

Selenoproteins And Selenocysteine Insertion System In The Model Plant Cell System, Chlamydomonas Reinhardtii, Sergey V. Novoselov, Mahadev Rao, Natalia V. Onoshko, Huijun Zhi, Gregory V. Kryukov, Youbin Xiang, Donald P. Weeks, Dolph A. Hatfield, Vadim Gladyshev

Vadim Gladyshev Publications

Known eukaryotic selenocysteine (Sec)-containing proteins are animal proteins, whereas selenoproteins have not been found in yeast and plants. Surprisingly, we detected selenoproteins in a member of the plant kingdom, Chlumydomonas reinhardtii, and directly identified two of them as phospholipid hydroperoxide glutathione peroxidase and selenoprotein W homologs. Moreover, a selenocysteyl-tRNA was isolated that recognized specifically the Sec codon UGA. Subsequent gene cloning and bioinformatics analyses identified eight additional selenoproteins, including methionine-Ssulfoxide reductase, a selenoprotein specific to Chlumydomonas. Chlumydomonas selenoprotein genes contained selenocysteine insertion sequence (SECIS) elements that were similar, but not identical, to those of animals. These SECIS elements could direct …

Center For Grassland Studies Newsletter, Summer 2002, Volume 8, No. 3

Center for Grassland Studies: Newsletters

• Influence of Topography on Sediment Trapping in Grass Buffers by Dean Eisenhauer, Michael Dosskey, Matthew Helmers, Jason Brothers, and Thomas Franti, Department of Biological Systems Engineering, UNL

• Vivien Allen to be Leu Distinguished Lecturer

• Arbor Links Golf Course Opens

• CGS Tour Showcased Golfing, Hunting, Ranching, Biology Education and Research

• New Grassland Reserve Program in Farm Bill

• Landscape Connections September 14

• Gudmundsen Ranch Open House August 28

A Wd40-Repeat Containing Protein, Similar To A Fungal Co-Repressor, Is Required For Transcriptional Gene Silencing In Chlamydomonas, Chaomei Zhang, Dancia Wu-Scharf, Byeong-Ryool Jeong, Heriberto D. Cerutti

Center for Plant Science Innovation: Faculty Publications

In higher plants, mammals, and filamentous fungi, transcriptional gene silencing is frequently associated with DNA methylation. However, recent evidence suggests that certain transgenes can be inactivated by a methylation independent mechanism. In the unicellular green alga Chlamydomonas reinhardtii, single-copy transgenes are transcriptionally silenced without discernible cytosine methylation of the introduced DNA. We have isolated a Chlamydomonas gene, Mut11, which is required for the transcriptional repression of single-copy transgenes. Mut11 appears to have a global role in gene regulation since it also affects transposon mobilization, cellular growth, and sensitivity to DNA damaging agents. In transient expression assays, a fusion …

Monitoring The Prey-Field Of Marine Predators: Combining Digital Imaging With Datalogging Tags, Sascha Hooker, Ian L. Boyd, Mark Jessop, Oliver Cox, John Blackwell, Peter Boveng, John Bengston

United States Department of Commerce: Staff Publications

There is increasing interest in the diving behavior of marine mammals. However, identifying foraging among recorded dives often requires several assumptions. The simultaneous acquisition of images of the prey encountered, together with records of diving behavior will allow researchers to more fully investigate the nature of subsurface behavior. We tested a novel digital camera linked to a time-depth recorder on Antarctic fur seals (Arctocephalus gazella). During the austral summer 2000-2001, this system was deployed on six lactating female fur seals at Bird Island, South Georgia, each for a single foraging trip. The camera was triggered at depths greater …

Public Attitudes And Knowledge Of The Black-Tailed Prairie Dog: A Common And Controversial Species, Donna Lybecker, Berton Lee Lamb, Phadrea Ponds

United States Geological Survey: Staff Publications

Black-tailed prairie dogs (Cynomys ludovicianus; hereafter, prairie dogs) are native to the short-grass prairie region of North America from Mexico to Canada (figure 1).According to government documents (64 Federal Register 57 at 14426–14427), before the 19th century expansion of the United States, prairie dogs inhabited millions of acres of the Great Plains and lived in huge colonies west of the Missouri River. Settlement of the Great Plains and the transformation of vast areas from native grassland to tilled farmland forever changed the prairie ecosystem and prairie dog habitat.
Over the course of the last century, the habitat range …

Focus Spring/Summer 2002

FOCUS: Economic Issues for Nebraskans

Contents:
Research on Nebraska Agricultural Productivity by Richard K. Perrin
Nebraska's Farm Real Estate Market: A Quarter-Century Perspective by Bruce B. Johnson and Glenn A. Helmers
The Dynamics of Water Quality Policy by Raymond J. Supalla and Saeed Ahmad
Beef Industry Structure, Marketing and Policy Issues by Dillon M. Feuz
UNLÕs Agribusiness Program Works for Students by Ronald J. Hanson and Jessica L. McKillip
Focus on teaching
Focus on research
Focus on outreach
Focus on people

Nebline, July 2002

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

2002 Lancaster County Fair
Blue Flowers for the Garden
Lawn Care Tips Save Water During Drought
Fall Webworm
2002 July/August Garden Calendar
“Itchy Chiggers”
Mosquito Prevention and Control
What’s the Scoop on Insect Repellents?
Changes in the Nebraska Pesticide Act May Affect Termiticide Applications
Preparing Bins, Equipment for Harvest
Soybeans American Style: Using Innovation & Experience to Increase Profitability
Pesticide Container Recycling
Plant Turnips for Fall Grazing
Safety and Risk Management in Agricultural Tourism
Caring for Animals When Gone
State’s Rural Population is Growing
July/August UNL Programs and Events of Interest
Packing Your Lunch Can Save You More Than Money …

Endangered Species Bulletin, July/August 2002 - Vol. Xxvii No. 3

Endangered Species Bulletin

In this issue:
4 Partners in Plant Conservation
5 The Center for Plant Conservation
8 A Safety Net for Hawaii’s Rarest Plants
12 An Alpine Plant Comes Back
14 Reintroducing Pitcher’s Thistle
16 Bringing Back a Fugitive
18 Battlefield Harbors a Tennessee Plant
20 The Search for Coryphantha ramillosa
22 Cultivating Partnerships for the Yellow Larkspur
24 Collaborative Conservation of the Beach Clustervine
26 Private Property, Public Interest
28 We’re Glad to Have Glades
30 Listing Actions
32 Box Score

Reducing Childhood Pedestrian Injuries: Proceedings Of A Multidisciplinary Conference, Richard A. Schieber, Maria Vegega

United States Public Health Resources

EXECUTIVE SUMMARY
Motor vehicle crashes are associated with one of every five deaths among children 1 to 14 years of age in the United States, and pedestrian injuries account for a third of them. Compared with occupant injuries, pedestrian injuries are more severe; death is five times more likely to occur among those injured. In 1999, 533 child pedestrians were killed, and at least 30,000 children were nonfatally injured in traffic. Another 200 were killed in non-traffic areas, including driveways, sidewalks, and parking lots. Traumatic brain injury accounts for more than half the fatalities.
Dr. Schieber noted that the decline …

Challenges, Strategies, And Tools For Research Scientists: Using Web-Based Information Resources, Danielle Bodrero Hoggan

E-JASL: Electronic Journal of Academic and Special Librarianship (1999-2009, Volumes 1-10)

Scientists face many challenges in harnessing web-based resources. Information overload, misinformation, fees, poorly designed navigation, and loss of browsability all hamper the scientist searcher. In addition, many scientists rely on only one or two databases and often miss unique information that is available through other sources. Librarians can team up with scientists to develop strategies to overcome the challenges of web-based information. For example, a librarian can teach effective information seeking techniques, including how to use controlled vocabularies, how to evaluate information on the web, and how to complement web-based resources with print resources. Librarians can also help scientists to …

Nebraska Blueprint – Summer 2002

Nebraska Blueprint (Student Publication)

Table of Contents:

From the Editor

Engineers Help Improve Smiles – Multidisciplinary research project takes Biological Systems Engineering students to the Dental College.

Professor, Student, Take Team Approach – Last year, Katie Schmatz learned a lot about teamwork. The industrial and management systems engineering graduate (May, 2002) worked with Dr. Stephanie Adams, assistant professor, IMSE, to find out what exactly makes teams work.

Black Engineers' Contributions to the World – A look at history showcases Black engineers' many contributions to the world.

Student Profiles – "Student finds his place at UNL," "Ship to shore: Former sailor finds niche in EE," …

The Probe, Issue 223 – July/August 2002

The Probe: Newsletter of the National Animal Damage Control Association

• Suburban Invasion! By Wildlife? -- Michelle L. Shuey, Southwest Texas State University
• What are the health risks of consuming meat from deer or elk infected with Chronic Wasting Disease ?
• The 68th North American Wildlife and Natural Resources Conference is set for March 26-30, 2003, in Winston-Salem, North Carolina
• Book Review: Living in the Shadows: How to Help the Stray Cat in Your Life (Without Adding to the Problem) by Ann K. Fisher.--“I was impressed with her chapter on taming feral cats. It would certainly take a dedicated soul to put that much work into taming …

Animal Diet Modification To Decrease The Potential For Nitrogen And Phosphorus Pollution, Terry J. Klopfenstein, Rosalina Angel, Gary Cromwell, Galen E. Erickson, Danny G. Fox, Carl Parsons, Larry D. Satter, Alan L. Sutton, David H. Baker, Austin Lewis, Deanne Meyer

Department of Animal Science: Faculty Publications

In 1996, the Council for Agricultural Science and Technology (CAST) published a report entitled Integrated Animal Waste Management. One of the recommendations in that report was to “change animal diets to decrease nutrient outputs” (CAST 1996, 1). Since that time, concentration of animal production units has continued, public concern about the environmental effects of animal manure has increased, and the Environmental Protection Agency (EPA) has proposed more restrictive requirements for concentrated animal feeding operations (CAFO regulations).

Progress has been made since 1996 to decrease nutrient outputs by animals through diet modification and nutrition. The current study describes the existing …

American Society Of Parasitologists Newsletter, V. 24, No. 2, July 2002, Scott Lyell Gardner

American Society of Parasitologists: Newsletter

An issue of the American Society of Parasitologists' quarterly newsletter, also called the Journal of Parasitology Newsletter.

Nebraska Earth Systems Education Network – Summer 2002

Nebraska Earth Systems Education Network

Content:

NESEN Members to Present at NATS Conference By Kylee Anderson

NESEN Website Reviewed and Approved for Classroom Use By Kylee Anderson

New Gallery Program at State Museum By Saundra Wever Frerichs

Earth Science Notes By Duane Mohlman

New Maps By Duane Mohlman

CSD and Water Center Calendar By Charles Flowerday

New Field Guide Explores the History and Geology of Harlan County Dam By Karen Stork

NU Report on Nitrogen Management in Northern Holt County Available By Karen Stork

A Mutation In The Latency-Related Gene Of Bovine Herpesvirus 1 Disrupts The Latency Reactivation Cycle In Calves, Melissa Inman, Luciane Lovato, Alan R. Doster, Clinton J. Jones

School of Veterinary and Biomedical Sciences: Faculty Publications

Bovine herpesvirus 1 (BHV-1) is an important pathogen of cattle, and infection is usually initiated via the ocular or nasal cavity. Following acute infection, the primary site for BHV-1 latency is the sensory neuron. Reactivation from latency occurs sporadically, resulting in virus shedding and transmission to uninfected cattle. The only abundant viral transcript expressed during latency is the latency-related (LR) RNA, suggesting that it mediates some aspect of latency. An LR mutant was constructed by inserting three stop codons near the beginning of the LR-RNA, suggesting that expression of LR proteins would be altered. The LR mutant grew with wild-type …

Effect Of Time Of Temperature Observation And Estimation Of Daily Solar Radiation For The Northern Great Plains, Usa, Rezaul Mahmood, Kenneth Hubbard

School of Natural Resources: Faculty Publications

Daily incident solar radiation is an important input for numerous crop growth simulation models. However, lack of recorded solar radiation is a significant impediment for most crop–climate studies. The present study aimed to overcome the problem of sparse historical data of solar radiation over the northern Great Plains. The approach was to develop a physically based solar radiation model wherein estimates were possible with minimum input data. In addition, this study investigates impacts of time of observation bias on the model formulation. The proposed model (M-H) requires measured daily range of air temperature (maximum minus minimum) and estimated daily clear-sky …

New And Known Species Of Litomosoides (Nematoda: Filarioidea): Important Adult And Larval Characters And Taxonomic Changes, Ricardo Guerrero, Coralie Martin, Scott Lyell Gardner, Odile Bain

Harold W. Manter Laboratory of Parasitology: Faculty Publications

During field surveys in Venezuela, Peru, and French Guiana, species of Litomosoides were recovered from bats and from a didelphid marsupial. Their morphology was studied, giving particular attention to the head and caudal papillae, the spicules (used to distinguish the carinii and sigmodontis groups of Litomosoides), and the microfilariae. Litomosoides wilsoni sp. n. from the short-tailed opossum Monodelphis emiliae is described from Peru; Litomosoides brasiliensis, Litomosoides chandleri, and Litomosoides guiterasi from bats are redescribed, and new hosts are recorded. For the first time, larval stages were recovered from bats (one male and one female fourth-stage larvae of …

Phylogenetic Analysis Of Brazilian Bovine Viral Diarrhea Virus Type 2 (Bvdv-2) Isolates: Evidence For A Subgenotype Within Bvdv-2, Eduardo F. Flores, Julia F. Ridpath, Rudi Weiblen, Fernanda S. F. Vogel, Laura H.V.G. Gil

School of Veterinary and Biomedical Sciences: Faculty Publications

Phylogenetic analysis divides bovine viral diarrhea viruses (BVDV) into two different genotypes (BVDV1 and BVDV2). BVDV1 strains have been further subdivided into two to 11 subgenotypes. Phylogenetic analysis of BVDV2 isolates, however, has not been able to identify discrete subgenotypes. In this study, we identified six South American BVDV2 strains and one North American BVDV2 strain that cluster to a separate genetic group within BVDV2, thus representing a distinct subgenotype. The 5’ untranslated region (UTR) sequence homology between these six strains and other BVDV2 from North America, Europe and Asia (81.7%) is lower than the homology used to segregate BVDV1 …

Caffeine As A Repellent For Slugs And Snails, Robert G. Hollingsworth, John W. Armstrong, Earl Campbell

United States Department of Agriculture Wildlife Services: Staff Publications

Most commercial products for snail and slug control contain either metaldehyde or methiocarb as the active ingredient, the residues of which are not permitted in food crops in the United States. We have discovered that solutions of caffeine are effective in killing or repelling slugs and snails when applied to foliage or the growing medium of plants. Because caffeine is a natural product and is classified by the United States Food and Drug Administration as a GRAS (‘generally recognized as safe’) compound, it has potential as an environmentally acceptable alternative toxicant for the control of slugs and snails on food …

Methyl Anthranilate Aerosol For Dispersing Birds From The Flight Lines At Homestead Air Reserve Station, Richard M. Engeman, Jeffrey Peterla, Bernice Constantin

United States Department of Agriculture Wildlife Services: Staff Publications

The failure of traditional hazing methods to provide a lasting dispersal of birds from the flight lines at Homestead Air Reserve Station, Florida led to trials with Rejex-it® TP-40 methyl anthranilate (MA) formulation as an aerosol. A variety of civil, military and other government aircraft use the base, including combat aircraft which are particularly prone to bird air strikes due to low altitude, high speed flights. Migrating swallows and killdeer congregate at the airfield to forage on insects, and the large numbers of birds cause restrictions in airfield operations because of potential strike hazards with aircraft. MA applied by fogger …

Pterourus Appalachiensis (Papilionidae: Papilioninae), A New Swallowtail Butterfly From The Appalachian Region Of The United States, Harry Pavulaan, David M. Wright

The Taxonomic Report of the International Lepidoptera Survey

A new univoltine species of Tiger Swallowtail, Pterourus appalachiensis, is described from the southern Appalachian Mountain region of the eastern United States. This distinct swallowtail has remained unrecognized by lepidopterists since the description of its sympatric congener Pterourus glaucus (Linnaeus) in 1758. Historical accounts of Tiger Swallowtails from this region pertain specifically to glaucus and cannot be attributed to this new species. Morphology, voltinism, phenology, distribution, and behavioral traits indicate species level status of appalachiensis. Although appalachiensis shares several phenotypic characters with the recently elevated species canadensis (Rothschild & Jordan), preliminary mitochondrial DNA analysis indicates that appalachiensis is …

Would Smokers With Schizophrenia Benefit From A More Flexible Approach To Smoking Treatment?, Dennis E. Mcchargue, Susy B. Gulliver, Brian Hitsman

Department of Psychology: Faculty Publications

We evaluated literature that addresses the notion that flexible smoking treatment approaches are warranted for smokers with a diagnosis of schizophrenia. Understanding the biological and psychological mechanisms that increase the likelihood of smoking and decrease the motivation to quit for these individuals is addressed within the framework of a neurobiological model. We provide a brief overview of the limited smoking cessation treatment literature for patients with schizophrenia and compare abstinence-focused versus reduction-focused treatment modalities. The potential utility of the reduction-focused approach to tobacco treatment for these smokers is evaluated. Suggestions for future research to address the utility and efficacy of …

Nano-Devices Using Block-Copolymers, Ravi F. Saraf

Department of Chemical and Biomolecular Engineering: Patents

A structure including a substrate. A first electrode and a second electrode are arranged spaced apart from each other on the substrate. A polymer string is positioned on the substrate between the two electrodes, the polymer line has a width of less than about 50 nm.

Distribution Of Channel Catfish Life Stages In A Prairie River Basin, Jason C. Vokoun, Charles F. Rabeni

United States Geological Survey: Staff Publications

To describe the pattern of use by age 0, juvenile, and adult channel catfish (Ictalurus punctatus) in a prairie river basin, we collected concurrent samples from tributaries and mainstem study sites in the Grand River basin of northern Missouri. Using standardized methods, we made collections in June, August, and October of 1997 and 1998. Age 0 channel catfish were found in all three streams in August, but rarely were observed in the tributaries during October. Juveniles (ages 1-3) and adults were observed in all three streams in all three months sampled. Tag returns suggested that age 2 and …