Life Sciences Commons^™

Plans For Crash-Tested Bridge Railings For Longitudinal Wood Decks, Michael A. Ritter, Ronald K. Faller, Paula D. Hilbrich Lee, Barry Thomas Rosson, Sheila Rimal Duwadi

USDA Forest Service / UNL Faculty Publications

In the past decade, bridge railing design criteria have moved away from static-load design and have focused on full-scale crash testing as a more appropriate and reliable means of evaluating bridge railings. The five bridge railing plans presented reflect the results of a cooperative research project between the Midwest Roadside Safety Facility, University of Nebraska-Lincoln; the USDA Forest Service, Forest Products Laboraotry; and the Federal Highway Administration. The project objective was to develop and crash test bridge railings and approach railing transitions for longitudinal wood bridge decks. The bridge railings were completed in accordance with AASHTO Performance Levell, Performance Level …

Swamp Rose Rosa Palustris Marsh, Gene Silberhorn

Reports

The Wetland Flora Technical Report series provides concise information regarding the identification, growth habits, distribution, habitat, ecology and wetland indicator status for the title species. Illustrations are also included to aid in specimen identification.

Verbena Brasiliensis Vell., Richard J. Abbott, Dana Griffin Iii

Specimens by Name

No abstract provided.

Trientalis Borealis Raf., John E. Ebinger

Specimens by Name

No abstract provided.

Spider (Araneae) Species Composition And Seasonal Abundance In San Joaquin Valley Grape Vineyards, Michael J. Costello, Kent M. Daane

Horticulture and Crop Science

As part of an investigation to estimate the effect of resident spider populations on Erythroneura variabilis Beamer, spider species composition, relative abundance, and seasonal occurrence were determined. Spiders were sampled monthly during the 1992 and 1993 growing seasons; their numbers were pooled and analyzed for species diversity using the Renkonen index of similarity and cluster analysis. Twenty-seven species of spiders were recorded, representing 14 families. The most common species were Cheiracanthium inclusum (Hentz), Trachelas pacificus (Chamberlin and Ivie), Theridion dilutum Levi, Theridion melanurum Hahn, Oxyopes scalaris Hentz, Oxyopes salticus Hentz, Hololena nedra Chamberlin and Ivie, and Metaphidippus vitis (Cockerell). Three …

Lupin Logic Number 61

Lupin Logic

Contents

Harvester modifications

Farmer attitude to grain legumes

Market comment

Reminder

PulsePak

Acer Nigrum Michx.F., John E. Ebinger

Specimens by Name

No abstract provided.

Effects Of Non-Point Nutrient Loading On Planktonic Community Structure And Function In A Great Lakes Coastal Wetland, Brian M. Binion

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science and Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by Brian M. Binion on July 26, 1995.

The Feasibility Of Trophic Manipulation In Grayson Lake, Kentucky, U.S.A., Russell Walker Crawford

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science and Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Masters of Science by Russell Walker Crawford on July 19, 1995.

Pb1544 Comparing The Cost Of Broadcasting Versus Injecting Nitrogen In No-Tillage Corn, The University Of Tennessee Agricultural Extension Service

Field & Commercial Crops

No-tillage has become a popular production option with many Tennessee farmers in the past 20 years. In 1993, no-tillage production systems were used on 290,000 acres of corn in Tennessee, or 44 percent of the total corn acreage planted in the state (TDA). Many farmers see no-tillage as a way to reduce the cost of growing corn. Others have chosen no-tillage as a way to comply with governmental regulations covering the farming of highly-erodible soils.

Input levels and prices are important to consider in any production system. A major expense in corn production is nitrogen (N) fertilizer. No-tillage budgets published …

Arkansas Rice Research Studies 1994, B. R. Wells

Arkansas Agricultural Experiment Station Research Series

The research reports in this publication represent one year of results; therefore, these results should not be used as a basis for longterm recommendations. Several research reports in this publication dealing with soil fertility also appear in Arkansas Soil Fertility Studies 1994, Arkansas Agricultural Experiment Station Research Series 443. This duplication is the result of the overlap in research coverage between the two series and our effort to inform Arkansas rice producers of all the research being conducted with funds from the rice check-off.

Lupin Logic Number 60

Lupin Logic

Contents

Where's the stubble?

Predicting flowering time in lupins

More reliable lupin yields

A guide to selecting grain legumes for your soil

Lupin demonstrations

Publications

Smooth Alder Alnus Serrulata (Ait.) Willd., Gene Silberhorn

Reports

The Wetland Flora Technical Report series provides concise information regarding the identification, growth habits, distribution, habitat, ecology and wetland indicator status for the title species. Illustrations are also included to aid in specimen identification.

Weed Suppression With Grazing Or Atrazine During Big Bluestem Establishment, B. Keith Lawrence, Steven S. Waller, Lowell E. Moser, Bruce Anderson, Larry L. Larson

Department of Agronomy and Horticulture: Faculty Publications

Weed competition is a major factor causing warm-season grass seeding failures in rangeland and cropland. With a limited number of herbicides available for weed control, grazing may reduce competing vegetation in seedings and serve as an alternative to herbicides. Many immature needy forbs and grasses are palatable to cattle and contain high nutrient levels. Research was conducted (RCBD, 4 reps) comparing grazing by yearling cattle with chemical suppression [atrazine (6-chloro-N-ethyl-N’- (methylethyl)-1, 3, 5-triazine-2, 4-diamine)] for weed control in big bluestem (Andropogon gerardii var. gerardii Vitman) seedlings at Mead, Nebr. on a Sharpsburg silty clay loam (fine, montmorillonitic, mesic Typic …

The Barley Book, Kevin Young, Grains Research And Development Corporation, Grain Pool Of Western Australia

Bulletins 4000 -

The Grain Pool of Western Australia isproud to join the Grains Research and Development Corporation as co-sponsor of the first comprehensive book on barley production and management published in Australia.The book will be an invaluable aid tobarley growers, giving them the latest facts on barley production, agronomy and marketing. In this age of rapidly changing technology and increasingcosts, growers need to be aware of the latest advances in production andmanagement to ensure maximum profitability. The Western Australian barley industry is presently in good shapeand initiatives such as the continued focus on quality and end-user service are being undertaken to ensure …

Demography, Reproduction, Diet And Crop Depredation In Three Species Of Rodents In Natural And Irrigated Fields In Nigeria, Safianu Rabiu

Biological Sciences Theses & Dissertations

Rodent populations of Arvicanthis, Mastomys and Tatera were studied during July 1990 to August 1992 in both natural and irrigated savannah fields of northern Nigeria. Tatera was entirely absent from the irrigated fields. Irrigation enhanced higher rodent population densities in the magnitude of three to four times over densities in the natural field. Arvicanthis was the most abundant of the three species in both sites. Tatera was the least common in the natural site. Adult survival rates in Arvicanthis and Tatera were significantly higher than Mastomys. Survival rates of both adult and young differed between the wet and dry …

Native Vegetation Handbook For The Shire Of Dumbleyung, Shaun B. Grein

Native vegetation handbook series

This booklet provides agricultural land managers with information relating to the natural resources of the Shire of Dumbleyung including the existing vegetation, drainage systems and soils. Some of the problems relating to the management of natural resources in the Shire of Dumbleyung and possible solutions to these problems are also discussed. By providing this information it is hoped this booklet will contribute to the long term viability of the agricultural landscape and the conservation of native vegetation within the Shire.

Washington State Initiatives For Sustainable Water Use, Kenneth O. Slattery

Sustainable Use of the West's Water (Summer Conference, June 12-14)

8 pages.

Is Sustainable Agriculture Possible In The Arid West?: The Example Of The Ogallala Aquifer, John Opie

Sustainable Use of the West's Water (Summer Conference, June 12-14)

16 pages.

Contains 2 pages of references.

Agenda: Sustainable Use Of The West's Water, University Of Colorado Boulder. Natural Resources Law Center

Sustainable Use of the West's Water (Summer Conference, June 12-14)

Conference organizers and/or faculty included University of Colorado School of Law professors David H. Getches, Lawrence J. MacDonnell, Teresa A. Rice, Elizabeth A. Rieke and Charles F. Wilkinson.

Sustainable development is on the policy agenda for the '90s. What does sustainability mean? Is it a realistic concept? Are water rights compatible with sustainable use? The Center's 16th annual summer conference will explore the meaning of sustainability in the context of the West's demands, development, and natural values. Presentations by leading experts will address the broad concept of sustainable development, with a particular look at Arizona's experience. The focus will be …

Fraxinus Americana L., Steven Clemants, Steve Glenn

Specimens by Name

No abstract provided.

Inhibition Of Chloroplast Dna Recombination And Repair By Dominant Negative Mutants Of Escherichia Coli Reca, Heriberto D. Cerutti, Anita M. Johnson, John E. Boynton, Nicholas W. Gillham

Center for Plant Science Innovation: Faculty and Staff Publications

Escherichia coli RecA, suggest that the plastid recombination system is related to its eubacterial counterpart. Therefore, we examined whether dominant negative mutants of the E. coli RecA protein can interfere with the activity of their putative homolog in the chloroplast of the unicellular green alga Chlamydomonas reinhardtii. Transformants expressing these mutant RecA proteins showed reduced survival rates when exposed to DNA-damaging agents, deficient repair of chloroplast DNA, and diminished plastid DNA recombination. These results strongly support the existence of a RecA-mediated recombination system in chloroplasts. We also found that the wild-type E. coli RecA protein enhances the frequency of …

B844: Checklist Of The Vascular Plants Of Maine Third Revision, Christopher S. Campbell, Heman P. Adams, Patricia Adams, Alison C. Dibble, Leslie M. Eastman, Susan C. Gawler, Linda L. Gregory, Barbara A. Grunden, Arthur D. Haines, Ken Jonson, Sally C. Rooney, Thomas F. Vining, Jill E. Weber, Wesley A. Wright

Bulletins

This is the third revision of the Checklist of Vascular Plants of Maine. Like its predecessors, it lists all ferns and related plants, conifers, and flowering plants native and naturalized in Maine and records their county-level distribution in the state. The first Check- list (Ogden et al. 1948) was based on specimens in herbaria at the University of Maine (hereafter referred to as MAINE), Portland Society of Natural History, New England Botanical Club, Gray Herbarium of Harvard University, and the private collection of Glen D. Chamberlain of Presque Isle, Maine (now part of MAINE). Bean et al. (1966) revised …

Lupin Logic Number 59

Lupin Logic

Contents

Anthracnose threatens lupin industry

Low lambing percentages

Post-emergence weed control options

Sowing lupins into pasture

Lupin No. 1 Pool

The Prairie Naturalist Volume 27, No.2. June 1995

The Prairie Naturalist

WILDLIFE MORTALITY ASSOCIATED WITH OIL PITS IN WYOMING ▪ B.J. Esmoil and S.H. Anderson

DRAMATIC INCREASE OF LE CONTE'S SPARROW IN CONSERVATION RESERVE PROGRAM FIELDS IN THE NORTHERN GREAT PLAINS ▪ LD. Igl and D.H. Johnson

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA - 1994 ▪ R.N. Randall

DESCRIPTIONS OF WALLEYE STOCKS IN HIGH-ELEVATION RESERVOIRS, WYOMING ▪ T.D. Marwitz and W A. Hubert

NEW VASCULAR PLANT RECORDS FOR THE BLACK HILLS OF SOUTH DAKOTA AND WYOMING • G.E. Larson and J.R. Johnson

NOTES

A New Population of Small White Lady's-Slipper (Cypripedium candidum) in South Dakota ▪ S.E. Boettcher

Sandhill …

Stomatal Characterization Of Grass Leaves By Four Preparation Techniques, Val J. Anderson, John S. Gardner, Joyce Phillips Hardy

Faculty Publications

Four leaf preparation techniques (air drying, tetramethylsilane air drying, critical point drying, and freeze substitution) used in scanning electron microscopy (SEM) were evaluated with respect to the degree of cellular distortion they produce in stomatal guard cells of leaves of Dactylis glomerata and Elymus canadensis. Surface morphological distortion and cuticle disruption in the air-dried and tetramethylsilane air-dried leaves, and cuticle disruption within the critical point-dried tissue made it difficult to obtain measurements.The freeze-substituted tissue experienced little cuticle disturbance, and the cellular morphology appeared normal. The length of the guard cells did not significantly differ between the air-dried, tetramethylsilane air-dried, critical …

Viola Pratincola Greene, John E. Ebinger

Specimens by Name

No abstract provided.

Viola Rafinesquei Greene, John E. Ebinger

Specimens by Name

No abstract provided.

Ligustrum Obtusifolium Siebold & Zucc., John E. E. Ebinger

Specimens by Name

No abstract provided.

Transitions In Masculinity And Hemingway's Developed "Code", Daniel Polk

Honors Theses

The "Hemingway Code" is much more than two words that fit nicely together for a scholar's usage; the words signify a much deeper championing of masculinity, almost a haunting presence. For Ernest Hemingway living life every day, every moment with its fullest masculine fervor, became an obsession, a never-ending quest to be at one with the attitude of never complaining, never crying out, panicking, thinking too much, or regretting. To live a manly life in a series of tactical victories, performed with steadfast ritualistic mannerisms, is to embody masculinity, and therefore the "Hemingway Code."