Digital Commons Network^™

New Floristic Records For Nebraska-5, Steven B. Rolfsmeier, Robert F. Steinauer, David M. Sutherland

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Recent field and herbarium studies have revealed the presence of 57 species, two varieties, and three hybrids of vascular plants and one moss not previously published with verification from Nebraska. Twenty-eight taxonomic entities are considered likely native in Nebraska, including: xAchnella caduca, Arabis divaricarpa, Aster ascendens, Atriplex suckleyi, Callitriche heterophylla, Campylium stellatum, Carex hirtifolia, Carex lasiocarpa var. americana, Chenopodium cycloides, C. pallescens, Dioscorea quaternata, Draba brachycarpa, Eleocharis wolfii, Elatine brachysperma, Elodea bifoliata, xElyhordeum iowense, xElyhordeum montanense, Eragrostis secundiflorus ssp. oxylepis, Erigeron lonchophyllus, Houstonia pusilla, Maianthemum canadense, Mirabilis exaltata, Myosotis verna, Pedicularis crenulata, Plantago rhodosperma, Potentilla simplex, Scutellaria parvula var. parvula …

Virulence Of Metarhizium Anisopliae (Deuteromycotina: Hyphomycetes) Strain Esc-1 To The German Cockroach (Dictyoptera: Blattellidae) And Its Compatibility With Insecticides, Pari Pachamuthu, Shripat T. Kamble, Gary Y. Yuen

Department of Entomology: Faculty Publications

Virulence of Metarhizium anisopliae (Metschnikoff) Sorokin strain ESC-1 against the German cockroach, Blattella germanica (L.), was determined using 5 concentrations ranging from 83107 to 23109 spores per milliliter. The calculated LD50 value was 4.18 by 108 spores per milliliter (4.18 3 105 spores per cockroach). In vitro study was conducted to determine the compatibility of M. anisopliae strain ESC-1 with chlorpyrifos, propetamphos, and cyfluthrin. Insecticides did not affect conidial germination but did adversely affect the growth and sporulation of M. anisopliae strain ESC-1. The growth of M. anisopliae colonies on media amended only with 50 and 500 ppm of chlorpyrifos …

Aulacaspis Yasumatsui (Hemiptera: Sternorrhyncha: Diaspididae), A Scale Insect Pest Of Cycads Recently Introduced Into Florida, Forrest W. Howard, Avas Hamon, Michael Mclaughlin, Thomas J. Weissling, Si-Lin Yang

Department of Entomology: Faculty Publications

Observations were conducted in southern Florida on Aulacaspis yasumatsui Takagi (Hemiptera: Sternorrhyncha: Diaspididae), a recently introduced armored scale insect native to Southeast Asia. The insect’s host plants, exclusively cycads, were identified in the following genera: Cycas (Cycadaceae ); Dioon, Encephalartos, Microcycas, (Zamiaceae), and Stangeria (Stangeriaceae). Cycas spp. seemed to be preferred over other cycad genera by this insect. Aulacaspis yasumatsui infested pinnae, rachides, strobili, stems, and roots of various species of cycads. It generally infested all above-ground plant parts of Cycas spp. and sometimes the primary and secondary roots to a soil depth of 60 cm. No morphological differences in …

The Times, They Are A Changing: A Review Of Raising Children In A Socially Toxic Environment, Susan M. Sheridan, Richard J. Cowan, Tanya Meegan

Department of Educational Psychology: Faculty Publications

Rarely does a book come along that we believe to be essential reading for all psychologists, educators, child care workers, physicians, clergy, and concerned community members. Garbarino’s Raising Children in a Socially Toxic Environment is one such book. In this book, Garbarino sets out to offer his views on what childhood ought to be, how children map their own worlds (thus define, themselves), what their basic needs are, the levels in which those needs are being met, as well as offer suggestions for ways in which readers can change the “toxic environment” to aid in the healthy development of children …

Early And Late Endosomal Compartments Of Entamoeba Histolytica Are Enriched In Cysteine Proteases, Acid Phosphatase And Several Ras-Related Rab Gtpases, Lesly A. Temesvari, Ed Harris, Samuel L. Stanley Jr., James Cardelli

Department of Biochemistry: Faculty Publications

Pure populations of early and late endosomes of Entamoeba histolytica were isolated by magnetic fractionation and characterized. It was shown that these vesicles were enriched in acid phosphatase and cysteine protease activities. An important virulence factor, a 27-kDa cysteine protease, was also enriched in early and late endosomes of E. histolytica. These data suggest that E. histolytica hydrolases reside in compartments that are part of or communicate with the endosomal pathway. To begin to identify the role of Rab GTPases in E. histolytica, an oligonucleotide approach was employed to screen an E. histolytica cDNA library for genes encoding …

Bacterial Growth State Distinguished By Single-Cell Protein Profiling: Does Chlorination Kill Coliforms In Municipal Effluent?, David Rockabrand, Teresa Austin, Robyn Kaiser, Paul H. Blum

School of Biological Sciences: Faculty Publications

Municipal effluent is the largest reservoir of human enteric bacteria. Its public health significance, however,

depends upon the physiological status of the wastewater bacterial community. A novel immunofluorescence

assay was developed and used to examine the bacterial growth state during wastewater disinfection. Quantitative

levels of three highly conserved cytosolic proteins (DnaK, Dps, and Fis) were determined by using

enterobacterium-specific antibody fluorochrome-coupled probes. Enterobacterial Fis homologs were abundant

in growing cells and nearly undetectable in stationary-phase cells. In contrast, enterobacterial Dps homologs

were abundant in stationary-phase cells but virtually undetectable in growing cells. The range of variation in

the abundance of …

Midseason Stalk Breakage In Corn As Affected By Crop Rotation, Hybrid, And Nitrogen Fertilizer Rate, Wallace Wilhelm, Mark A. Liebig, Gary E. Varvel, Tracy M. Blackmer

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

In July of 1993 and 1994, southern Nebraska experienced devastating windstorms, with winds estimated to exceed 45 m s^-1. These storms resulted in severe brittle-snap of corn (Zea mays L.), with stalks breaking near the primary ear node in the basal portion of an elongating internode. In the storm path were several experiments established on a Hord silt loam (Cumulic Haplustolls) to determine the effect of selected management practices (crop rotation, hybrid selection, planting date, and N fertilization) on nitrate leaching to ground water from irrigated cropland. After the storms, the number of broken plants was determined …

Proceedings Of The Symposium On The Status, Management, And Conservation Of The Species Alectoris, Black Francolin, Thrush, Quail, And Turtle Dove In The Mediterranean Region, Nicos Kassinis, Panicos Panayides

Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials

Proceedings of the International Council for Game and Wildlife Conservation, Symposium on the Status, Management, and Conservation of the Species Alectoris, Black Francolin, Thrush, Quail, and Turtle Dove in the Mediterranean Region held Octobe 8-10, 1999 in Lemesos, Cyprus.

Multiple Perspectives On Multimedia In The Large Lecture, Helen A. Moore, Timothy D. Pippert

Department of Sociology: Faculty Publications

Students, graduate instructors and the classroom professor responded in journals, on objective tests, in focus groups and on survey questionnaires to the effects of computer media in four large lecture classes. Graduate instructors and students responded in focus groups to multimedia technology with consistent themes, including enhancement of cognitive strategies (note taking and organization of ideas) and motivation. However, students also expressed distancing from the instructor. Student achievement outcomes using pre- and post-test scores showed no differences across two experimental applications of multimedia presentations: static and dynamic. Discussion of findings emphasizes the need to balance considerations of resource scarcity and …

Scienceworks: A University-Based Science Outreach Group, Rochelle Payne Ondracek, Diandra Leslie-Pelecky

Diandra Leslie-Pelecky Publications

ScienceWorks is a science and engineering outreach group at the University of Nebraska- Lincoln, comprised of faculty, graduate students, undergraduates and community volunteers. We are brought together by one goal - to make science fun and accessible for everyone. ScienceWorks has developed over 30 modules that emphasize a range of scientific and engineering topics and guide the participants in discovery-based learning. Modules cover a wide variety of topics, including pressure, materials, electromagnetism, archaeology, DNA, optics and fracture. Most ScienceWorks modules involve hands-on activities. In Electromagnetism for example, students are asked to use a length of wire and a nail to …

Gender Differences In The Relationships Among Ses, Family History Of Alcohol Disorders And Alcohol Dependence, Geoffrey M. Curran, Scott F. Stoltenberg, Elizabeth M. Hill, Sharon A. Mudd, Frederic C. Blow, Robert A. Zucker

Department of Psychology: Faculty Publications

Objective: Potential moderator and mediator roles of several measures of socioeconomic status (SES) were investigated for the relationship between a family history of alcoholism( FH) and alcohol dependence symptoms in adulthood. Method: These analyses were performed with a sample of 931 men and 385 women participating in studies at the Alcohol Research Center, University of Michigan. Hierarchical multiple regression equations were used to assess whether SES mediated and moderated relationships between FH and alcohol dependence symptoms. Results: In general, measures of SES (education, occupation, personal and household income) were more important predictors of alcohol dependence symptoms among men, while FH …

Lethal Sandslides From Eolian Dunes, David B. Loope, Joseph A. Mason, Lowell Dingus

Department of Earth and Atmospheric Sciences: Faculty Publications

Fossil vertebrates entombed within the Upper Cretaceous Djadokhta Formation of southern Mongolia bear testimony to a heretofore unknown geologic phenomenon: mass wasting of eolian dunes during heavy rainstorms. Evaporation of shallow-penetrating rainwater led to progressive calcite accumulation in a thin layer of sand about 0.5 m below the surface of dune lee slopes. During rare heavy rainstorms, a perched water table developed at the top of calcitic zones. Positive pore water pressure led to translational slides and fast-moving sediment gravity flows that overwhelmed animals on the lee slopes of large dunes and in interdune areas.

Transgenic Mammals Expressing Human Coagulation Factor Viii, Henryk Lubon, William N. Drohan, William H. Velander

Department of Chemical and Biomolecular Engineering: Faculty Publications

A non-human transgenic mammalian animal, as described above, contains an exogenous double Stranded DNA Sequence Stably integrated into the genome of the animal, which comprises cis-acting regulatory units operably linked to a DNA sequence encoding human Factor VIII protein and a signal peptide, where the cis-acting regulatory units are active in mammary gland cells and the Signal peptide is active in directing newly expressed Factor VIII into the milk of the animal. The promoter may be a milk protein promoter Such as for whey acidic protein, casein, lactalbumin, or beta-lactoglobulin promoter. The transgenic mammals are preferably farm animals, for example, …

A Review Of Issues Pertaining To Transgenic Turfgrasses, Paul G. Johnson, Terrance P. Riordan

Department of Agronomy and Horticulture: Faculty Publications

Recombinant DNA technology is a rapidly growing field in plant and animal breeding. This technology involves the transfer of pieces of DNA, or genes, regardless of the organisms involved or how they are related. Transformation procedures in plants were first developed for important crop and model plant systems. Although turfgrass management and production is one of the fastest growing areas of agriculture, genetic transformation of turfgrasses lags behind that of many other important crop plants. Turfgrasses are becoming more important primarily because of their association with the ever-increasing urban population. The size of the turfgrass seed market is second only …

Pisatin Demethylation By Fungal Pathogens And Nonpathogens Of Pea: Association With Pisatin Tolerance And Virulence, Leslie M. Delserone, K. Mccluskey, D. E. Matthews, H. D. Vanetten

University of Nebraska-Lincoln Libraries: Faculty Publications

Previous studies have indicated that detoxification of their hosts’ phytoalexins is a tolerance mechanism for some true fungi, but not the fungus-like Oomycota, and may be involved in determining the virulence of a pathogen. In the present study, the associations between demethylation of the pea phytoalexin pisatin, tolerance to pisatin, and viru­lence on pea were examined for 50 fungal isolates which represent 17 species of pathogens and nonpathogens of pea. All isolates of Pythium coloratum and P. irregulare failed to metabolize and were sensitive to pisatin, consistent with previous observations that members of the Oomycota generally lack the ability …

Aerodrome Bird Hazard Prevention: Case Study At John F. Kennedy International Airport, Richard A. Dolbeer

United States Department of Agriculture Wildlife Services: Staff Publications

The collision of birds with aircraft is a serious problem at John F. Kennedy International Airport (JFKIA), New York. Gulls (Larus spp.) accounted for 86% of bird strikes (an aircraft striking >1 bird) from 1988-1990, averaging 260 strikes/year. Laughing Gulls (L. atricilla) are present from May- September in association with a protected nesting colony in Jamaica Bay National Wildlife Refuge adjacent to the airport. The colony increased from 15 nests in 1979 to 7,629 nests in 1990. During the 1970s and 1980s, JFKIA implemented various management activities to reduce gull strikes, including maintenance of tall grass, improved sanitation, drainage of …

Rhodospirillum Rubrum Poly-Β-Hydroxyalkanoate Synthase, Thomas E. Clemente, Ganish M. Kishore, Timothy A. Mitsky, David M. Stark

Center for Plant Science Innovation: Faculty Publications

Isolated DNA fragments encoding a Rhodospirillum rubrum (ATCC 25903) polyhydroxyalkanoate (PHA) synthase, or biologically functional equivalents thereof, are provided. Also provided is the deduced amino acid sequence of the R. rubrum PHA synthase. These molecules are useful in the production of PHAs in bacteria and plants.

Optimizing Amplifier Placements In A Multiwavelength Optical Lan/Man: The Unequally Powered Wavelengths Case, Byrav Ramamurthy, Jason Iness, Biswanath Mukherjee

School of Computing: Faculty Publications

Optical networks based on passive-star couplers and employing WDM have been proposed for deployment in local and metropolitan areas. These networks suffer from splitting, coupling, and attenuation losses. Since there is an upper bound on transmitter power and a lower bound on receiver sensitivity, optical amplifiers are usually required to compensate for the power losses mentioned above. Due to the high cost of amplifiers, it is desirable to minimize their total number in the network. However, an optical amplifier has constraints on the maximum gain and the maximum output power it can supply; thus, optical amplifier placement becomes a challenging …

"The Most Important Scholarly Work": Reflections On Twenty Years Of Change In Historical Editing, Michael E. Stevens

Documentary Editing: Journal of the Association for Documentary Editing (1979–2011)

Twenty years ago, at the first annual meeting of the Association for Documentary Editing in Princeton, New Jersey, Arthur Link stated that documentary editing is "the most important scholarly work being done in the United States, and, if well done, it will be the most enduring." Last year, the distinguished historian Edmund S. Morgan echoed Link when he wrote in the Wall Street Journal that the 154 volumes produced by the Founding Fathers editions "stand as the single most important achievement of American historical scholarship in this century."

Despite this high praise, Link's and Morgan's opinions are not universally held. …

Nebline, December 1998

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Holiday legends,traditions & fun
Gardening resolutions
Keep trees fresh
Cyclamen care
Painting with plants
Pruning vines and groundcovers
Combing—a non-toxic method that can eliminate head lice
Our Christmas tree
A mouse in the house
A “must read” book
It’s a hit–20,000 hits!
Use and care of home humidifiers
Deadline near for requesting free inspection in compliance with Livestock Waste Management Act
Private applicators training
Crop Protection Clinic
The Power of a PTO
Beef home study course begins fifth year
Landlords need to reduce cash crop rental rates for '99
Developing your marketing plan
Chain saw operation
Commercial handling of fresh …

Documentary Editing, Volume 20, Number 4, December 1998.

Documentary Editing: Journal of the Association for Documentary Editing (1979–2011)

No abstract provided.

Nothing Left To Lose: Of, Changes In Literary Editing And The Decline Of Civilization As We Know It, Joel Myerson

Documentary Editing: Journal of the Association for Documentary Editing (1979–2011)

My title is somewhat facetious, but not completely. There has been a profound shift in the direction and underlying assumptions of editorial theory and practice during the thirty years in which I have been practicing this craft, and my purpose here is to make some general observations on this topic. I start with a warning, though: most of my comments apply to textual or literary editing, not to documentary editing as it is practiced by literary editors.

Touring Colonial America: Review Of Edward Kimber, Itinerant Observation In America, Ed. Kevin J. Hayes., Darin E. Fields

Documentary Editing: Journal of the Association for Documentary Editing (1979–2011)

Traveling to the colonies in 1742 at age twenty-three, young Edward Kimber embarked on what was no doubt the adventure of his life. Son of Isaac Kimber, editor of the London Magazine from 1732 to 1755, Edward had grown up around the publishing industry and was keenly aware of the public appetite for reading material. Like nearly all literate travelers of his day, but perhaps more aware than many that his travels in the colonies would furnish material for later publication, Kimber dutifully kept a journal record of his observations and experiences. His American adventure yielded literary fruit from 1743 …

Reconsidering The Hiv/Aids Prevention Needs Of Latino Women In The United States, Marcela Raffaelli, Mariana Suarez-Al-Adam

Department of Psychology: Faculty Publications

The HIV/AIDS epidemic represents an ever-increasing threat to Latino populations in the United States, with women being most affected by this deadly disease. In this chapter, we explore the challenges Latino women face as they attempt to reduce their risk of sexual transmission of HIV, the virus that causes AIDS. Our main interest lies in examining how the economic, cultural, and social realities of women's lives contribute to their risk of HIV infection and constrain their ability to reduce that risk. Because there is neither a cure for AIDS nor a vaccination to block HIV transmission, prevention of infection is …

First-Class Versus Pre-Canceled Postage: A Cost/Benefit Analysis, R. Filkins, John C. Allen, Sam Cordes

Publications from the Center for Applied Rural Innovation (CARI)

This paper examines the costs and benefits of using first-class postage compared to non-profit, pre-canceled postage in inducing response to a self-administered mail questionnaire. An experiment was conducted with the outgoing postage for the 1998 Nebraska Rural Poll. Twenty-five percent of the outgoing questionnaires were mailed with first-class postage, with the remaining seventy-five percent having non-profit, pre-canceled postage affixed. The results showed that there was no statistically significant difference in response rates between the two groups, there were no differences in demographic characteristics between the two postage groups, and the use of non-profit, pre-canceled postage resulted in substantial cost savings.

The Effect Of A Uniform Electric Field On Homogeneous Vapor–Liquid Nucleation In A Dipolar Fluid. I. Stockmayer Fluid, K.J. Oh, G.T. Gao, Xiao Cheng Zeng

Xiao Cheng Zeng Publications

The rate of homogeneous vapor–liquid nucleation is controlled mainly by the Gibbs formation free energy of critical clusters. Within the framework of thei/υ cluster theory of Reiss and co-workers, the formation free energies of Stockmayer clusters in the presence of a uniform electric field are determined. The Helmholtz free energy of the clusters, an input required in the i/υ cluster theory, is calculated via Monte Carlo simulations. The most significant result is that as a uniform electric field is applied the formation free energy at fixed supersaturation of the vapor becomes larger than that in the absence …

Enhancing The Effectiveness Of Social Skills Interventions With Adolescents, David J. Hansen, Douglas W. Nangle, Kathryn A. Meyer

Department of Psychology: Faculty Publications

Competent social interactions are clearly necessary for adjustment and successful functioning in society. The many developmental events and changing social expectations that occur during adolescence can make it particularly challenging for youth to establish and maintain competent social interactions. Research on social skills training with adolescents began in the mid-tolate 1970’s and it has improved much over the years. The research has gradually moved beyond a focus on basic skill assessment and acquisition in clinical settings toward techniques designed to assess and promote generalization and maintenance of an effective interpersonal repertoire in real world settings and situations. This article discusses …

Proceedings Eighteenth Vertebrate Pest Conference [Complete]

Vertebrate Pest Conference Proceedings: 18th (1998)

On behalf of the Vertebrate Pest Council, welcome to the Eighteenth Vertebrate Pest Conference. For 36 years, the Council has been presenting these conferences for the purpose of advancing knowledge in the field of vertebrate pest management. The conference proceedings are utilized extensively throughout the world as a source of information regarding vertebrate pest biology, behavior, ecology, and integrated pest management technology. Never before has the vertebrate pest management field been under as much pressure to change from using traditional control methods of trapping and toxicants, to what are viewed as more humane and environmentally friendly methods. Unfortunately, the general …

Nebline, November 1998

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Auntie Bacteria's holiday advice
Gifts for the gardener
Forcing bulbs
Attracting birds with the right plants
Rodent damage
Winter care for strawberry plants
Dealing with head lice? Even for experts, it's a head scratcher
Good reasons to recycle aluminum
Milk carton bird feeder
Migrating birds face many hazards
Achieving cleaner indoor air
Holding wet corn with aeration
Grain storage information on the web
Pesticide container recycling a success
Farm finances tight? Fertilize with biosolids and save $$
Acreage reply
Native prairie preservation
United States using less water
Reduce orchard woes
Mealtime tips for the preschool child
Healthy Eating: Holiday Turkey …

Center For Sustainable Agricultural Systems Newsletter, November/December 1998

Center for Sustainable Agricultural Systems: Newsletter (1993–2000)

Contents:

Grants to Teach Sustainable Agriculture

Spring CSAS Seminar Series: Re-Integrating Agriculture and Community in the Midwest

Highlights of Upcoming New Book: Under the Blade (Part 4)

Watershed Information Flows Along the Internet

Nordic Agroecology Program Begins August 1999

Beef Home Study Courses Begin Fifth Year

Two On-farm Assessment Tools