Digital Commons Network^™

Parent-Teen Communication About Sexual Topics, Marcela Raffaelli, Karen Bogenschneider, Mary Fran Flood

Department of Psychology: Faculty Publications

Parent-teen communication about sexual topics was examined in 666 mother-teen and 510 father-teen pairs. Parents and their 8th- through 12th-grade children completed parallel surveys that assessed demographic, relationship, and attitudinal variables hypothesized to be linked to sexual communication. Logistic regression analyses were used to determine which variables were linked to teens’ reports of “one good talk” about each of three sexual topics (whether teen sex is okay, the dangers of AIDS and other sexually transmitted diseases, and birth control) in the past year. Aside from gender of parents and teens, demographic variables were largely nonsignificant in the final models. Instead, …

“Other Teens Drink, But Not My Kid”: Does Parental Awareness Of Adolescent Alcohol Use Protect Adolescents From Risky Consequences?, Karen Bogenschneider, Ming-Yeh Wu, Marcela Raffaelli, Jenner C. Tsay

Department of Psychology: Faculty Publications

This study included 199 White mother-adolescent dyads and 144 White father-adolescent dyads. All adolescents reported regular alcohol use, yet less than one third of parents were aware of their adolescents’ drinking. Parental awareness of adolescent alcohol use served to protect adolescents by moderating the relation of parents’ responsiveness to episodes of drinking and driving. Aware parents were more likely than unaware parents to believe their adolescents’ close friends drank alcohol. Aware mothers worried more about their adolescents’ risk behaviors and discussed them more frequently with their adolescents. Aware fathers held values less disapproving of adolescent alcohol use and were less …

Hexapod Herald - Vol. 10, No. 5, May 15, 1998

Hexapod Herald and Other Entomology Department Newsletters

Grants

Calendar of events

Announcements

Congratulations

Departmental travelers

From Cheri's desk

Cropwatch No. 98-9, May 15,1998, Lisa Brown Jasa

Crop Watch (1994–2005)

Inside

Flea beetles……………82

Field updates……………82

Potential wheat yield up……………83

Common stalk borers……………84

Weeds as signals……………85

Squirrels in corn……………86

Alfalfa disease, views ……………87

Nitrogen fertilizer sources……………88

Form, Function, And Evolution In Skulls And Teeth Of Bats, Patricia W. Freeman

School of Natural Resources: Faculty Publications

Bats provide a model system for tracking change from the primitive mammalian tooth pattern to patterns indicating the more-derived food habits of carnivory, nectarivory, frugivory, and sanguinivory. Whereas microchiropteran bats show all these transitions, megachiropterans illustrate an alternative pattern concerned only with frugivory and nectarivory. In microchiropterans, it is likely that carnivory nectarivory, frugivory, and sanguinivory are all derived from a dilambdodont insectivorous tooth pattern. Megachiropterans are troublesome because they appear as nectarivores or frugivores without a clear relationship to ancestral taxa.

The nature of the food item and how teeth respond to that item evolutionarily is an issue I …

Why Should Fathers Father?, Patricia Draper

Department of Anthropology: Faculty Publications

The findings about the ways in which components of men's human capital is translated into human capital of offspring are intriguing both for what the findings show about secular trends in fertility, consequences for child accomplishment, and for what they show about the importance of the child's mother in linking the father to the child. It is this issue, the mother as link to child and the nature of the father's relationships with the mother that I make the center of my remarks.

There are several things to keep in mind when we try to grasp the evolutionary big picture …

Polymerase Chain Reaction Detection And Phylogenetic Characterization Of An Agent Associated With Yellow Vine Disease Of Cucurbits, Francisco J. Avila, Benny D. Bruton, Jacqueline Fletcher, J. L. Sherwood, Sam D. Pair, Ulrich Melcher

Department of Plant Pathology: Faculty Publications

Diagnosis of yellow vine disease (YVD) in cucurbits, an important disease in the south-central United States, relies on external symptom appearance, phloem discoloration, and the presence of bacterium-like organisms (BLOs) in phloem. Polymerase chain reaction (PCR) amplification of BLO nucleotide sequences was explored as a means to improve diagnostic techniques. PCR, using a primer pair based on sequences of the citrus-greening BLO, amplified a 0.15-kilobase (kb) fragment from the DNA of symptomatic plants, but not from that of asymptomatic plants. Its nucleotide sequence suggested that the DNA amplified was of prokaryotic origin. A primer pair, designed to amplify nonspecific prokaryotic …

Opportunities For Growing Short-Rotation Woody Crops In Agroforestry Practices, Gary A. Kuhn, W. J. Rietveld

Agroforestry Notes (USDA-NAC)

Technologies are readily available for growing hybrid poplars and willows in block plantings as short-rotation woody crops (SRWC) for fuel and fiber. SRWC species and technologies can also be incorporated into agricultural systems as agroforestry practices. Examples are windbreaks, living snowfences, “timberbelts”, riparian buffer strips, and wastewater treatment plantings. Fast growth, convenient propagation (see AF Note - 11), and compatibility with conventional farming methods make SRWC suitable for use in agroforestry practices to provide multiple benefits such as solid wood and wood fiber products, water quality improvement, crop and soil protection, wildlife habitat, and buffers for agricultural/community interfaces.

Establishment And Cultural Guidelines For Using Hybrid Tree Species In Agroforestry Plantings, Gary A. Kuhn, W. J. Rietveld, Don E. Riemenschneider

Agroforestry Notes (USDA-NAC)

Hybrid poplars (and willows) are well-suited for agroforestry applications in many parts of the United States (See AFN-10). Their convenient propagation and fast growth allow them to establish and provide conservation benefits more quickly. This note provides general establishment and cultural guidelines to consider when using hybrid poplar cuttings for agroforestry plantings.

The Probe, Issue 188 – May 1998

The Probe: Newsletter of the National Animal Damage Control Association

Woodchuck Control, Then and Now -- Clarence E. Faulkner, NADCA Regional Director, Region 0 (Agency Liaison/Foreign)
Thoughts... Robert H. Giles, Jr., President, NADCA
Legislative Update-CJ NWCO ASSN Responds to Regulatory Changes
Booklet Review: "Missouri Coyotes—A Guide to Management, Nuisance Prevention, and Damage Control" By Ron McNeely, Missouri Conservation Commission, 1997. 32 pp. ($1.00)
ADC on the NET: Dogs Useful in Canada Goose Control
Outdoor Channel, WLFA Team Up

Wpa News 56 (1998), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (May 1998), number 56

Published by the World Pheasant Association

Center For Sustainable Agricultural Systems Newsletter, May/June 1998

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

Contents:

A Snapshot of CSAS Activity in Research, Education and Training

Vollmar to Be Interim CSAS Director

Highlights of Upcoming New Book: Under the Blade (Part 1)

CSAS Publishes Two More "Green Volumes"

USDA to Change Proposed Organic Standards

$31 Million Awarded in Fund for Rural America Grants

Sustainable Ag Seminar Series to Focus on Alternative Farming Systems and Foodsheds

Call for 1999 NCR SARE Preproposals

Newsletter Mailing List Clarification

Differentiation Of F18ab+ From F18ac+ Escherichia Coli By Single-Strand Conformational Polymorphism Analysis Of The Major Fimbrial Subunit Gene (Feda), Brad T. Bosworth, Evelyn A. Dean-Nystrom, Thomas A. Casey, Holly L. Neibergs

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

Toxin-producing Escherichia coli expressing F18 fimbriae colonizes the small intestines of weaned pigs and causes diarrhea, edema disease, or both. The F18 family is composed of two antigenic variants, F18ab and F18ac. Because many strains do not express F18 fimbriae in vitro, identification and differentiation of these two variants are difficult. Single-strand conformational polymorphism (SSCP) analysis is a rapid method for identifying genetic mutations and polymorphisms. The F18 major fimbrial subunit genes (fedA) of 138 strains were amplified by PCR, and genetic differences were detected by SSCP analysis. The SSCP analysis of the fedA gene differentiated F18ab^{+ …}

Effects Of Preservation Methods, Parasites, And Gut Contents Of Black Flies (Diptera: Simuliidae) On Polymerase Chain Reaction Products, D. A. Koch, G. A. Duncan, T. J. Parsons, K. P. Pruess, T. O. Powers

Department of Entomology: Faculty Publications

Molecular analysis of biological specimens usually requires extraction of high-molecular-weight DNA free of foreign DNA contaminants. DNA was extracted from black flies at different life stages that had been preserved by 4 methods: larvae and adults in ethanol, larvae in Carnoy’s solution, adults on card-points, and adults hand-swatted and sun-dried. Using specific primers for the mitochondrial ND4 gene, a 257-bp amplicon was obtained from specimens preserved by ethanol, card-point mounting, and sun-drying. Successful amplification often required DNA dilutions ≥ 1:20 (<1–10 ng). DNA from specimens preserved in Carnoy’s solution (ethanol: acetic acid, 3:1) yielded degraded DNA, resulting in fewer successful amplifications. Parasitic nematodes and, to a lesser extent, gut contents resulted in extra products when amplified with randomly amplified polymorphic DNA (RAPD) primers. Sufficient DNA was extracted from the head of a larva for a successful polymerase chain reaction (PCR), eliminating the need to remove the contaminating gut and parasites.

The Effects Of Conjoint Behavioral Consultation And A Structured Homework Program On Math Completion And Accuracy In Junior High Students, Robin K. Weiner, Susan M. Sheridan, William R. Jenson

Department of Educational Psychology: Faculty Publications

The effects of conjoint behavioral consultation (CBC) and a structured homework program on math homework completion and accuracy in junior high school students (grades seven through nine) who were at risk for academic failure were investigated. A multiple baseline design across five participants was utilized. Follow-up data were collected approximately one month after CBC was completed, to assess maintenance over time. Four of the five students improved their completion rates during treatment. Accuracy rates increased during treatment, but to a lesser degree. At follow-up, three of the five students maintained or improved gains they made during treatment. One student who …

Two New Subspecies Of Bats Of The Genus Sturnira, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

The last systematic review of the yellow-shouldered bats of the Neotropical genus Sturnira in the Lesser Antilles was in 1976 (Jones and Phillips, 1976). At that point in time, two species--Sturnira lilium and Sturnira thomasi--were known from these islands. Sturnira lilium was represented by five subspecies, beginning with Trinidad and moving northward, these subspecies were lilium on Trinidad (Goodwin and Greenhall, 1961), paulsoni on St. Vincent (de Ia Torre and Schwartz, 19661, luciae on St. Lucia (Jones and Phillip, 19761, zygomaticus on Martinique (Jones and Phillips, 1976), and angeli on Dominica (de la Tom, 1966).

Biological Characterization Of Rev Variation In Equine Infectious Anemia Virus, Michael Belshan, Matthew E. Harris, Anne E. Shoemaker, Thomas J. Hope, Susan Carpenter

Nebraska Center for Virology: Faculty Publications

Sequence analysis identified significant variation in the second exon of equine infectious anemia virus (EIAV) rev. Functional analysis indicated that limited amino acid variation in Rev significantly altered the export activity of the protein but did not affect Rev-dependent alternative splicing. EIAV Rev can mediate export through two independent cis -acting Rev-responsive elements (RREs), and differences among Rev variants were more pronounced when both RREs were present. Variation in Rev may be an important mechanism for regulation of virus replication in vivo and may contribute to changes in clinical disease.

Preliminary Phylogenetic Analysis Of Subfamilies Of The Proteocephalidea (Eucestoda), Amilcar Arandas Rego, Alain De Chambrier, Vladimira Hanzelová, Eric P. Hoberg, Tomás Scholz, Peter Weekes, Marc Zehnder

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Cladistic analysis based on comparative morphology was used to examine the subfamily-level relationships within the cestode order Proteocephalidea. A single most parsimonious tree (70 steps, CI = 0.571; RC = 0.295; HI = 0.471) is consistent with monophyly for the Proteocephalidea and showed a relatively high consistency at the family level with the diagnosis of two major subclades. Unambiguous support for a Proteocephalidae subclade, including the Corallobothriinae, Proteocephalinae, Gangesiinae and Sandonellinae, and a Monticelliidae subclade, including the Marsypocephalinae, Zygobothriinae, Monticelliinae, Rudolphiellinae, Ephedrocephalinae and Othinoscolecinae was evident. Two subfamilies, the Acanthotaeniinae (historically in the Proteocephalidae) and Nupeliinae (historically in the Monticelliidae), …

April 1998 - Advisory Council Meeting

ALEC Committee Minutes

No abstract provided.

Managing Island Biotas: Brown Treesnake Control Using Barrier Technology, Gad Perry, Earl W. Campbell Iii, Gordon H. Rodda, Thomas H. Fritts

United States Department of Agriculture Wildlife Services: Staff Publications

The brown treesnake (Boiga irregularis), accidentally introduced to the previously snake-free U.S. island of Guam after World War 11, decimated the island's naive wildlife. Today, it periodically stows away on craft going to other islands where the ecological damage may be repeated. Barriers offer an effective tool for keeping the snakes out of areas from which they can disperse off-island, as well as sites identified as critical for the protection of human health, conduct of economic activity, or conservation of endangered species. The authors have developed a variety of barrier designs which repulse at least 95% of snake …

A Review Of The Case Histories Of The Brown Tree Snakes (Boiga Irregularis) Located By Detector Dogs On Guam, Richard M. Engeman, Danny V. Rodriguez, Michael A. Linnell, Mikel E. Pitzler

United States Department of Agriculture Wildlife Services: Staff Publications

Records of 34 brown tree snakes detected during dog inspections were examined to describe the situations in which snakes were found and to determine probable destinations had they successfully departed Guam. A key to the use of detector dogs for interdicting brown tree snake transport from Guam is that the snakes found are at high risk for export. Hawaii. followed by the Micronesian islands. were the most frequently identified potential destinations for the snakes located by dogs. Published by Elsevier Science Ltd.

Trapping Strategies For Deterring The Spread Of Brown Tree Snakes From Guam, Richard M. Engeman, Michael A. Linnell

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 presented a health hazard to infants and children, and also has produced an economic problem. Prevention of its dispersal through Guam's cargo traffic to other Pacific islands has became a high environmental priority. Trapping around ports and other cargo staging areas is central to an integrated pest management program designed to deter dispersal of the species. In this study, perimeter trapping of forested plots characteristic of those found in port areas was found 19 …

Cropwatch No. 98-6, April 24, 1998, Lisa Brown Jasa

Crop Watch (1994–2005)

Special focus: Soybeans

Field updates…………….52

Nitrogen……………. 53

Phosphorus, potassium…………….53

Liming…………….54

Inoculation…………….54

Alfalfa weevils…………….55

Managing soybean chlorosis…………….56

Clover leaf weevils…………….56

Weeds in soybeans…………….57

Cultural practices…………….58

Diagnostic Clinic…………….58

Sclerotinia stem rot…………….59

Musk thistle control…………….60

Comparative Developmental Toxicity Of Planar Polychlorinated Biphenyl Congeners In Chickens, American Kestrels, And Common Terns, David J. Hoffman, Mark J. Melancon, Patrice N. Klein, John D. Eisemann, James W. Spann

United States Department of Agriculture Wildlife Services: Staff Publications

The effects of polychlorinated biphenyl (PCB) congeners, PCB 126 (3,3′, 4,4′, 5-pentaCB) and PCB 77 (3,3′4,4′-tetraCB), were examined in chicken (Gallus gallus), American kestrel (Falco sparverius), and common tern (Sterna hirundo) embryos through hatching, following air cell injections on day 4. PCB 126 caused malformations and edema in chickens starting at 0.3 ppb, in kestrels at 2.3 to 23 ppb, but in terns only at levels affecting hatching success (44 ppb). Extent of edema was most severe in chickens and least in terns. Defects of the beak were common in all species but with …

Predation On Atlantic Salmon Smolts By Striped Bass After Dam Passage, Bradley F. Blackwell, Francis Juanes

United States Department of Agriculture Wildlife Services: Staff Publications

We documented predation on smolts of Atlantic salmon Salmo salar by striped bass Morone saxatilis foraging in the tailrace of the Essex Dam on the Merrimack River, Lawrence, Massachusetts, and assessed factors that may affect smolt susceptibility to predation. During 6 d of diurnal angling from 6 to 28 May, we captured 212 striped bass, 41 of which contained prey remains. More than 48% of striped bass that contained prey had consumed smolts. Atlantic salmon smolts composed more than 80% of the total mass of prey remains recovered and included both individuals of stocked-fry and stocked-smolt origin. Based on information …

Alain Leroy Locke On The Social Construction Of Race, M. Anthony Fitchue

Different Perspectives on Majority Rules: 3rd Annual National Conference (1998)

“This paper will illustrate that Locke’s work in art and culture in the early years of the Harlem Renaissance grew out of an unusual analysis of race as transmogrified phrenology juxtaposed against the structured privileges of a pseudo species called white people. The process of naming whiteness, thus, becomes a political act which defines the nature of structured privilege in a color-bound society.”

Inventory For Endangered, Threatened And Rare Plant And Animal Species Within The Floodplain Corridor Of The Middle Loup River Basin In Nebraska, Michael I. Fritz, Gerry Steinauer

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

This survey was conducted by Nebraska Natural Heritage Program of the Nebraska Game and Parks Commission with funding received from the U.S. Department of the Interior, Bureau of Reclamation, Grand Island office. This agreement was entered into on April 16, 1996. The objective of the agreement was to conduct a survey of a portion of the Loup River basin floodplain corridor for rare plant communities and plant and animal species. This is the final report of that survey. This report includes not only data collected directly as a result of field survey work associated with the project but also previous …

Cropwatch No. 98-4, April 10, 1998, Lisa Brown Jasa

Crop Watch (1994–2005)

Inside

Briefs................32

Shortcuts for alfalfa................32

Dryland corn vs. sorghum................33

Weed control in wheat................34

Remember rotation restrictions with herbicides................35

Early season insect control in corn................37

Planting depth................40

Biological products for corn diseases................40

A New Human Selenium-Containing Protein, Vadim N. Gladyshev, Kuan Teh Jeang, John C. Wootton, Dolph L. Hatfield

Vadim Gladyshev Publications

Selenium which occurs in proteins as the amino acid, selenocysteine, is essential for numerous biological processes and for human health. A prominent ⁷⁵Se-labeled protein detected in human T-cells migrated as a 15-kDa band by SDS-polyacrylamide gel electrophoresis. This protein subunit was purified and subjected to tryptic digestion and peptide sequence analyses. Sequences of tryptic peptides derived from the protein corresponded to a human placental gene sequence containing an open reading frame of 162 residues and a readthrough in-frame TGA codon. Three different peptide sequences of the 15-kDa protein corresponded to a nucleotide sequence located downstream of this codon, suggesting …

A Diatom-Based Reconstruction Of Drought Intensity, Duration, And Frequency From Moon Lake, North Dakota: A Sub-Decadal Record Of The Last 2,300 Years, Kathleen R. Laird, Sherilyn C. Fritz, Brian F. Cumming

Department of Earth and Atmospheric Sciences: Faculty Publications

Diatom assemblages preserved in sediment cores from closed-basin lakes can provide high-resolution records of past hydrologic and climatic conditions, including long-term patterns in the intensity, duration, and frequency of droughts. At Moon Lake, a closed-basin lake in eastern North Dakota, a comparison of diatom-inferred salinity and the precipitation-based Bhalme-Mooley Drought Index (BMDI) over the last 100 years was highly significant, suggesting that the diatom record contains a sensitive archive of past climatic conditions. A sub-decadal record of inferred salinity for the past 2300 years indicates that extreme droughts of greater intensity than those during the 1930s “Dust Bowl” were more …