Digital Commons Network^™

A Cost Of Reproduction In Drosophila Melanogaster: Stress Susceptibility, Adam B. Salmon, David B. Marx, Lawrence G. Harshman

Lawrence G. Harshman Publications

Little is known about physiological mechanisms that underlie the cost of reproduction. We tested the hypothesis that stress susceptibility is a cost of reproduction. In one test of our hypothesis, Dro-sophila melanogaster females were exposed to a juvenile hormone analog (methoprene) to stimulate egg production followed by stress assays. A sterile stock of D. melanogaster was employed as a control for reproduction. Exposure of fertile females to methoprene resulted in an increase in female repro-duction and increased susceptibility to oxidative stress and starvation (compared to solvent con-trols). Sterile females did not exhibit a decrease in stress resistance. Mating also stimulated …

Female Sensitivity To Diet And Irradiation Treatments Underlies Sex-Mortality Differentials In The Mediterranean Fruit Fly, James R. Carey, Pablo Liedo, Hans-Georg Müller, Jane-Ling Wang, Brad Love, Lawrence G. Harshman, Linda Partridge

Lawrence G. Harshman Publications

Large-scale experiments on medflies that were subjected to sterilizing doses of ionizing radiation (plus intact controls) and maintained on either sugar-only or full, protein-enriched diets revealed that, whereas the mortality trajectories of both intact and irradiated male cohorts maintained on both diets are similar, the mortality patterns of females are highly variable. Mean mortality rates at 35 days in male cohorts ranged from 0.2 to 0.3 but in female cohorts ranged from 0.09 to 0.35, depending on treatment. The study reports three main influences: (a) qualitative differences exist in the sex–mortality response of medflies subjected to dietary manipulations and irradiation, …

Clinal Variation In Body Size And Sexual Dimorphism In An Indian Fruit Bat, Cynopterus Sphinx (Chiroptera: Pteropodidae), Jay F. Storz, J. Balasingh, Hari Bhat, P. Thiruchenthil Nathan, D. Paramanantha Swami Doss, A. Antony Prakash, Thomas H. Kunz

Jay F. Storz Publications

Geographic variation in body size and sexual dimorphism of the short-nosed fruit bat (Cynopterus sphinx ) was investigated in peninsular India. Bats were sampled at 12 localities along a 1,200 km latitudinal transect that paralleled the eastern flanks of the Western Ghats. The geographic pattern of variation in external morphology of C. sphinx conforms to the predictions of Bergmann’s Rule, as indicated by a steep, monotonic cline of increasing body size from south to north. This study represents one of the first conclusively documented examples of Bergmann’s Rule in a tropical mammal and confirms that latitudinal clines in body …

Genomic Regions That Underlie Soybean Seed Isoflavone Content, K. Meksem, V. N. Njiti, W. J. Banz, M. J. Iqbal, My. M. Kassem, David L. Hyten, J. Yuang, T. A. Winters, D. A. Lightfoot

Department of Agronomy and Horticulture: Faculty Publications

Soy products contain isoflavones (genistein, daidzein, and glycitein)that display biological effects when ingested by humans and animals, these effects are species, dose and age dependent. Therefore, the content and quality of isoflavones in soybeans is a key to their biological effect. Our objective was to identify loci that underlie isoflavone content in soybean seeds. The study involved 100 recombinant inbred lines (RIL)fr om the cross of ‘Essex’ by ‘Forrest,’ two cultivars that contrast for isoflavone content. Isoflavone content of seeds fromeach RIL was determined by high performance liquid chromatography (HPLC). The distribution of isoflavone content was continuous and unimodal. The …

Phylogey Of Steinernema Travassos, 1927 (Cephalobina: Steinnematidae) Inferred From Ribosomal Dna Sequences And Morphological Characters, S. Patricia Stock, James F. Campbell, Steven A. Nadler

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Entomopathogenic nematodes in Steinernema, together with their symbiont bacteria Xenorhabdus, are obligate and lethal parasites of insects that can provide effective biological control of some important lepidopteran, dipteran, and coleopteran pests of commercial crops. Phylogenetic relationships among 21 Steinernema species were estimated using 28S ribosomal DNA (rDNA) sequences and morphological characters. Sequences of the rDNA internal transcribed spacers were obtained to provide additional molecular characters to resolve relationships among Steinernema carpocapsae, Steinernema scapterisci, Steinernema siamkayai, and Steinernema monticolum. Four equally parsimonious trees resulted from combined analysis of 28S sequences and 22 morphological characters. Clades inferred from …

Functional Classification Of Swine Manure Management Systems Based On Effluent And Gas Emission Characteristics, J. A. Zahn, J. L. Hatfield, D. A. Laird, T. T. Hart, Y. S. Do, A. A. Dispirito

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

Gaseous emissions from swine (Sus scrofa) manure storage systems represent a concern to air quality due to the potential effects of hydrogen sulfide, ammonia, methane, and volatile organic compounds on environmnental quality and human health. The lack of knowledge concerning functional aspects of swine manure management systems has been a major obstacle in the development and optimization of emission abatement technologies for these point sources. In this study a classification system based on gas emission characteristics and effluent concentrations of total phosphorus (P) and total sulfur (S) was devised and tested on 29 swine manure management systems in …

Gamma Sigma Delta, Nebraska Chapter Newsletter, Issue #22, February 2001

Gamma Sigma Delta, Nebraska Chapter: Newsletters

PRESIDENT'S MESSAGE - Merlyn Nielsen, President Nebraska Chapter

NOTES FROM THE HISTORIAN

MEMBERSHIP COORDINATOR REPORT

2001 SCHEDULE OF EVENTS

2001 Scholarship Recognition Reception

GAMMA SIGMA DELTA COMMITTEES, 2001

2001 ANNUAL DUES NOTICE FOR NEBRASKA CHAPTER-GAMMA SIGMA DELTA

Gamma Sigma Delta, Nebraska Newsletter, Issue #22 [#23], August 2001

Gamma Sigma Delta, Nebraska Chapter: Newsletters

PRESIDENT'S MESSAGE - Merlyn Nielsen, President, Nebraska Chapter

IN MEMORIAM

MEMBERSHIP COORDINATOR REPORT

SCHOLARSHIP RECOGNITION RECEPTION AWARDS RECIPIENTS

NOMINATIONS FOR MEMBERSHIP TO GAMMA SIGMA DELTA August 2001

Merit Award Nomination

Teaching Award Nomination

Research Award Nomination

Extension Award Nomination

BALLOT FOR GAMMA SIGMA DELTA TREASURER

Accomplishments As Of March 13, 2000; Nebraska Network 21, Nebraska Network 21

Nebraska Network 21: Publications

This report is not all inclusive, but does contain several exemplars exemplars of accomplishments of Nebraska Network 21 to date. Virtually all of the accomplishments in this report are the result of partnerships and collaboration between and among Nebraska higher education institutions and their constituents. NN21 teams and projects are engaging higher education with the public in new and innovative ways.
Exemplars described in this report are listed under four major themes:
1) Changing the Campus Culture / Redefining Scholarship and Faculty Rewards
2) Partnerships and Collaboration
3) Engagement and Public Involvement
A. New Programs
B. New Curricula
C. New …

Amartya Sen And World Food Day 2000, Bettina Klaus

Cornhusker Economics

As every year, World Food Day took place on October 16th. Being relatively new to UNL (and the U.S.), and being an assistant professor in the Economics Department (joint with the Agricultural Economics Department) with research interests in social choice and game theory, the probability that I would get involved with World Food Day were slim. However, somehow it caught my eye that the yearly teleconference that accompanies World Food Day featured the 1998 Nobel prize winner for economics, Professor Amartya Sen. The 2000 World Food Day’s teleconference topic was “Poverty and Hunger: The Tragic Link” and in a superb …

Ecological And Physiological Factors Affecting Nesting Success Of Burrowing Owls In Buffalo Gap National Grassland, Randall L. Griebel

School of Natural Resources: Dissertations, Theses, and Student Research

The western burrowing owl (Athene cunicularia hypugea) has been declining throughout much of its range, and in some areas, quite dramatically. In the Great Plains region, these declines appear to be closely associated with declines in prairie dog numbers. Most research to date has taken place on relatively small, fragmented prairie dog colonies. The objectives of this study were to analyze burrowing owl reproductive performance (i.e., clutch size, brood size, and number fledged), and nestling body condition in relation to nest level and colony level factors in Buffalo Gap National Grassland, South Dakota. Buffalo Gap contains large prairie …

Ard News December 2000

Agricultural Research Division: News and Annual Reports

CONTENTS:
Season's Greetings
Recognition of Junior Faculty for Excellence in Research
Policy Prohibits Use of University Funds for Memberships, Subscriptions
Royalties
ARD Philosophy an Annual Performance Evaluation
ARD "Service Objectives"
University and Industry Consortium Meeting
Integrated Activities Program far FY 2001
CSREES Appropriation for FY 2001
Grants and Contracts Received October and November, 2000
Proposals Submitted for Federal Grants

'Earlibrite' Strawberry, C. K. Chandler, D. E. Legard, David Dunigan, T. E. Crocker, C. A. Sims

Department of Plant Pathology: Faculty Publications

There is a need in west central Florida and other winter strawberry (Fragaria xananassa Duchesne) production areas for an early ripening cultivar to replace or be an alternative to 'Sweetcharlie' (Chandleretal., 1997a). 'Sweet Charlie' has benefitted the Florida strawberry industry through its relatively high production of fruit early in the season, when market prices are generally high. But the average fruit size is small, and the texture of its fruit is often soft, making shipment and shelf life of 'Sweet Charlie' problematic. 'Earlibrite' strawberry has produced high early-season (December through February) yields of large, flavorful fruit at the Univ. …

Nebline, December 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Planting Your Small Farm's Future
Winter Care of Houseplants
Houseplant Insect Problems
Ways to Attract Birds
Air Layering Tropical Plants
Amaryllis Care
Pheromone Traps Help Control Pests
“Green” Gifts
Sneaky Rodents can be Tough to Catch
Give a Gift of Knowledge
Winter Activities for Kids
Fescue Endophyte Toxicity Found in the County
Discussion on Crop Biotechnology
Conservation Tree Program — New Species
To Prune is to Care
Nebraska Nuts Add Holiday Flavor
Deforestation in United States
“Do You Know What You Are Eating?”
It’s Prime Time for Prime Rib
Handling Holiday Leftovers When Dining Out
Family & Community Education (FCE): …

Role Of ΣB In Adaptation Of Listeria Monocytogenes To Growth At Low Temperature, Lynne A. Becker, Stefanie N. Evans, Robert W. Hutkins, Andrew K. Benson

Department of Food Science and Technology: Faculty Publications

The activity of σ^B in Listeria monocytogenes is stimulated by high osmolarity and is necessary for efficient uptake of osmoprotectants. Here we demonstrate that, during cold shock, σ^B contributes to adaptation in a growth phase-dependent manner and is necessary for efficient accumulation of betaine and carnitine as cryoprotectants.

‘Strawberry Festival’ Strawberry, C. K. Chandler, D. E. Legard, David Dunigan, T. E. Crocker, C. A. Sims

Department of Plant Pathology: Faculty Publications

Most of the strawberries (Fragaria xananassa Duchesne) produced in Florida are shipped fresh to locations throughout the eastern United States and Canada (Florida Agricultural Statistics [www.nass.usda.gov/ fl]). Therefore, Florida growers need cultivars that produce fruit that are attractive and flavorful, and maintain these qualities during and after long-distance shipment. 'Strawberry Festival' strawberry has produced commercially acceptable yields of firm, attractive, and flavorful fruit in trials at the Univ. of Florida's Gulf Coast Research and Education Center in Dover (GCREC-Dover) and in two commercial fields in west central Florida. It is recommended for trial in areas where strawberries are grown …

Structure-Expression Relationships Of The 15-Kda Selenoprotein Gene, Easwari Kumaraswamy, Andrey Malyhk, Konstantin V. Korotkov, Sergei Kozyavkin, Yajun Hu, Byeong J. Lee, Dolph L. Hatfield, Alan M. Diamond, Vadim N. Gladyshev

Vadim Gladyshev Publications

Selenium has been implicated in cancer prevention, but the mechanism and possible involvement of selenoproteins in this process are not understood. To elucidate whether the 15-kDa selenoprotein may play a role in cancer etiology, the complete sequence of the human 15-kDa protein gene was determined, and various characteristics associated with expression of the protein were examined in normal and malignant cells and tissues. The 51-kilobase pair gene for the 15-kDa selenoprotein consisted of five exons and four introns and was localized on chromosome 1p31, a genetic locus commonly mutated or deleted in human cancers. Two stemloop structures resembling selenocysteine insertion …

Nebline, November 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Family Meals Nourish Body and Soul
Holiday Safety for Your Home
Houseplant Problems
Gifts for The Gardener
Winter Protection for Roses
Invisible Bites and Itches
America Recycles Day: Wednesday, November 15, 2000
Voracious Voles
Bugs in Your Firewood?
Grain Stubble Rental Rates
Assessing Alternative Ag Opportunities
Irrigation Well Data Available on Internet
Biosolids Cuts Production Costs and Improves Yields
Planting Designs With Wildlife in Mind
Sweet Dreams Little Tractor
Space Heater Cautions
Eat More Fruits for Good Health
Healthy Eating: Turkey Crescents
Serve Food Safely at Holiday or Party Buffets
Focus on Food
Family & Community Education (FCE): Clarice's Column …

Fish & Wildlife News: November/December 2000

Fish and Wildlife News

Contents:

Jones Named Deputy Director 2
New Guidelines Announced for Federal Aid 3
Landmark Legislation for Refuge System 4
Maine Salmon Given ESA Protection 7
Service a Presence in Fisheries Society 11
Information Portal Makes Life Easy 13
Region 5 Invests in People 15
New Refuge Dedicated in Montana 16
U.S. and Russia Sign Polar Bear Treaty 18
Fighting the War on Weeds 22
Mexican Students Flock to Alaska 28
Fish and Wildlife...In Brief 35

Wpa News 63 (2000), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (November 2000), number 63

Published by the World Pheasant Association

Permeabilization Of Cochliomyia Hominivorax (Diptera: Calliphoridae) Embryos, Dennis Berkebile, Jan Chirico, Roger A. Leopold

Department of Entomology: Faculty Publications

Embryos of the primary screwworm, Cochliomyia hominivorax (Coquerel), were successfully permeabilized for use in subsequent cryopreservation studies. Mortality was greater for eggs incubated for<5 h before treatment. The mean survival of embryos to first instars was 55.7, 61.1, and 62.6% when the embryos were incubated for 5, 5.5, and 6 h before treatment, respectively. The survival to the pupal and adult stages was low. An improved media for culturing the embryos during and immediately after treatment needs to be devised and the procedure for rearing the larval stages also needs to be altered to improve survival for emerging adults.

Obituary: Elmer Clea Birney, 1940-2000, Hugh H. Genoways, Carleton J. Phillips, Jerry R. Choate, Robert S. Sikes, Kristin M. Kramer

University of Nebraska State Museum: Mammalogy Papers

On 11 June 2000, Dr. Elmer C. Birney unexpectedly passed away from cardiac arrest suffered while outside caring for his cattle at his home in Blaine, Minnesota. One of his former students, Robert Timm, probably best expressed the immediate reaction of his family and many friends: ‘‘He was too young and in too good of health to be gone so soon.’’ At the time of his death, Elmer was Professor in the Department of Ecology, Evolution and Behavior, the Curator of Mammals at the Bell Museum of Natural History, and Director of Graduate Studies of the program in Ecology, Evolution …

Evaluations Of Nicarbazin-Treated Pellets For Reducing The Laying And Viability Of Canada Goose Eggs, Kurt C. Vercauteren, Michael J. Pipas, Kenneth L. Tope

Wildlife Damage Management Conference Proceedings

The number of Canada geese (Branta canadensis) nesting in the United States is increasing rapidly, generating more complaints and problems associated with them. Overabundant geese can be a nuisance, threaten human health and safety, and cause damage to property. Nicarbazin (NCZ), a coccidiostat used in chicken production, has been documented to reduce egg production and viability. The reduction of reproduction through the use of NCZ could be a valuable aspect of an overall integrated goose management plan. We conducted studies at 5 sites in Nebraska in spring 2000 to evaluate the efficacy of NCZ-treated pellets for reducing the laying and …

Capsaicin-Treated Seed As A Squirrel Deterrent At Birdfeeders, Paul D. Curtis, Elizabeth D. Rowland, Gwen B. Curtis, Joseph A. Dunn

Wildlife Damage Management Conference Proceedings

Eastern gray squirrels (Sciurus carolinensis) are considered to be a pest by many bird-lovers because they take significant quantities of seed from birdfeeders. None of the available methods of protecting birdseed against squirrels is completely effective. We assessed the efficacy of treating birdseed with capsaicin oleoresin as a means of deterring squirrels. Consumption of treated and untreated whole, black-oil sunflower seed was compared by carrying out one-choice feeding trials at 3 sites near Ithaca, New York, from 11 May to 24 June 1999. The heat strength of the treated seed was 40,000 Scoville Heat Units (SHUs) (2,424 ppm) on the …

Conditioning And Habituation Of White-Tailed Deer To Two Common Deterrents, George R. Gallagher, Jennifer L. Peacock, Elizabeth P. Garner, Robert H. Prince

Wildlife Damage Management Conference Proceedings

It was hypothesized white-tailed deer {Odocoileus virginianus) could be readily conditioned to 2 commonly used deterrents, Deer-Away® Big Game Repellent (BGR) and blood meal (BM). Plots were randomly assigned BGR, BM and control. Free-ranging deer were initially conditioned to forage for corn at each 49m2 bare earth plots delivered at 0500 hr and 1600 hr by programmable sling-type feeders. Hoof prints were counted within a 3.7m2 sample area of each plot to quantify activity. Following preconditioning, data were collected during 5, 5-day periods. Application of BGR and BM to their respective bare earth plots occurred during periods 2,4 and 5. …

Ard News October 2000

Agricultural Research Division: News and Annual Reports

CONTENTS:
Comments from the Dean
New Guidelines for Multistate Research Activity
Initiative far Future Agriculture and Food Systems (IFAFS)
Grants and Contracts Received August and September 2000
Proposals Submitted for Federal Grants
Technology Transfer Website
New and Revised Projects
ARD Administered Grant and Awards Programs
ARD Out-of-State Travel Policy Professional Society Meetings
Travel to Multi-State Research Committee Meetings

Nebline, October 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Two Kinds of People: Character Counts!
Viburnums in the Landscape
Storing Vegetables
Garden Cleanup
What is the Best Termite Control: Baits or Barriers?
Woolly Bears
Watch for Fall Invaders
Head Lice Information in Spanish!
Fall Is a Good Time to Control Problem Weeds
Making Financial Plans Now Will Help the Future of Farms and Ranches
ARPA Bill Increases Crop Insurance Subsidies
Making the “Right” Management Choices
Bait Stations for Rats and Mice
Plant Seeds Not Seedlings
Large Round Bale Storage
Fall Preparations – Asparagus, Cucurbits
Poultry Pests
Get Active! Pyramid
Healthy Eating: Apple Pizza
Healthy Halloween Treats
Kids in the …

Analysis Of 200 Food Items For Benzo[A]Pyrene And Estimation Of Its Intake Ίη An Epidemiologic Study, Ν. Kazerouni, R. Sinha, Che-Han Hsu, Α. Greenberg, Ν. Rothman

United States Public Health Resources

Animal stιιdies have shown that dietary intake of benzo[α]pyrene (BaP), a polycyclic aromatic hydrocarbon (ΡΑΗ), causes increased levels of tumors at several sites, particιιlarly ίη the upper gastrointestinal tract. However, the role of dietary intake of BaP and cancer ίη humans is not clear. We CIeated a BaP database of selected food products that could be lίnl(ed to Food Frequency Qnestionnaires (FFQs) to estimate BaP intake. BaP levels were measnred for each food line-item (composite samples) which consisted of a variety of foods ίη a FFQ. Composite sample parts were derived from the Second National Health and Nutrition Examination Survey …

Undergraduate Full Text Databases: Bell And Howell Medical Complete And Infotrac Health Reference Center-Academic, Lutishoor Salisbury, Bryan Davidson, Alberta Bailey

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

This study compares and contrasts InfoTrac and ProQuest primarily as full-text resources to supplement retrieval of references contained in the CINAHL database. These databases are analyzed by examining their scope in terms of the number and types of serials covered within specific areas using Ulrich's subject headings. Another important aspect of this study relates to the effectiveness of the two search engines for end-user retrieval and collection development.

Great Plains Research, Volume 10, Number 2, Fall 2000 – Contents

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Contents:

History and Culture
Health and Nutrition
Economics and Employment
Paradigms and Directions
Commentary
Book Reviews
News and Notes
Index