Life Sciences Commons^™

Telecommunications Act Of 1996: Issues That Effect Nebraskans, John J. Allen

Cornhusker Economics

With the passage of the Telecommunications Act of 1996, the pace of regulatory change increased exponentially. The impact on rural areas is significant; the issues specific to Southern states and communities unique. This report provides a brief history of telecommunications regulation and an overview of the key elements of the Telecommunications Act of 1996. Innovations in state telecommunications regulations, as well as a summary of actions taken by Southern states since the 1996 Act was adopted, are discussed. After this whirlwind tour of telecommunications regulation, the report examines the evidence for the importance of telecommunications technology in rural areas and …

Vitis Aestivalis F.Michx., Bob Edgin

Specimens by Name

No abstract provided.

Soil Health And Sustainability: Managing The Biotic Component Of Soil Quality, John W. Doran, Michael R. Zeiss

Department of Agronomy and Horticulture: Faculty Publications

Soil health is the capacity of soil to function as a vital living system, within ecosystem and land-use boundaries, to sustain plant and animal productivity, maintain or enhance water and air quality, and promote plant and animal health. Anthropogenic reductions in soil health, and of individual components of soil quality, are a pressing ecological concern. A conference entitled ‘Soil Health: Managing the Biological Component of Soil Quality’ was held was held in the USA in November 1998 to help increase awareness of the importance and utility of soil organisms as indicators of soil quality and determinants of soil health. To …

Lysimachia Nummularia L., John E. Ebinger

Specimens by Name

No abstract provided.

Ampelopsis Cordata Michx., Bob Edgin

Specimens by Name

No abstract provided.

Morus Alba L., Gordon C. Tucker

Specimens by Name

No abstract provided.

Viola Rafinesquii Greene, Gordon C. Tucker

Specimens by Name

No abstract provided.

Form Ia Rbcl Transcripts Associated With A Low Salinity/High Chlorophyll Plume ('Green River') In The Eastern Gulf Of Mexico, John H. Paul, Albin Alfreider, Jordan B. Kang, Roger A. Stokes, Dale Griffin, Lisa Campbell, Erla Ornolfsdottir

Marine Science Faculty Publications

Coastal plumes of low salinity water that extend hundreds of kilometers offshore into oligotrophic waters are often found in the Gulf of Mexico. To characterize one such feature, a series of photoautotrophic activity and biomass parameters were measured at 2 stations in the eastern Gulf of Mexico, including pigments by high performance liquid chromatography (HPLC), autotrophic picoplankton abundance by flow cytometry, photoautotrophic ¹⁴C-HCO₃^- fixation, and Ribulose-1,5-diphosphate carboxylase large subunit gene (rbcL) transcriptional activity. One sampling site (Stn 4) was in a 15 m deep, low salinity (29.8 ppt) plume 242 km west of Tampa Bay. …

Changing Fitness Consequences Of Hsp70 Copy Number In Transgenic Drosophila Larvae Undergoing Natural Thermal Stress, S. (Stephen) P. Roberts, M. E. Feder

Biological Sciences Faculty Research & Creative Works

1. Transgenic Manipulation of the Gene Copy Number of Hsp70, Which Encodes the Major Inducible Heat-Shock Protein of Drosophila Melanogaster (Hsp70), Affects Both Hsp70 Levels and Inducible Thermotolerance in the Laboratory; Here Parallel Effects in Transgenic Drosophila Larvae Undergoing Natural or Simulated Natural Thermal Stress Are Demonstrated. 2. Necrotic Fruit Was Infested with Larvae of Either of Two Transgenic Strains, One Transformed with 12 Extra Copies of the Hsp70 Gene (Extra-Copy Strain) and a Sister Strain Possessing Only the Wild-Type Number (10) of Hsp70 Genes (Excision Strain), and Then Allowed to Heat to Variable Extents. 3. as the Intensity of …

Nitrogen For Bearing Cranberries In North America, Joan Davenport, Carolyn J. Demoranville, John Hart, Teryl Roper

Cranberry Station Fact Sheets

No abstract provided.

Social Structure Of A Polygynous Tent-Making Bat, Cynopterus Sphinx (Megachiroptera), Jay F. Storz, Hari Bhat, Thomas H. Kunz

Jay F. Storz Publications

The social structure of an Old World tent-making bat Cynopterus sphinx (Megachiroptera), was investigated in western India. A combination of census and mark–recapture data over 2 years (1996–98) was used to infer the form of the mating system, compositional stability of social groups and mode of new social group formation. The breeding population of C. sphinx was subdivided into diurnal roosting colonies, each of which contained one to five discrete roosting groups and often one or more solitary bats in adjacent roosts. Bats most frequently roosted in stem tents constructed in the flower/fruit clusters of the kitul palm Caryota urens …

Development Of Diagnostic Concentrations For Monitoring Bacillus Thuringiensis Resistance In European Corn Borer (Lepidoptera: Crambidae), Paula C.R.G. Marcon, Blair D. Siegfried, Terrence A. Spencer, W. D. Hutchinson

Department of Entomology: Faculty Publications

Two candidate diagnostic concentrations of the Cry1Ab and Cry1Ac toxins from Bacillus thuringiensis corresponding to the LC₉₉ and EC₉₉ (effective concentration that causes 99% growth inhibition) for European corn borer, Ostrinia nubilalis (Hubner), were determined based on previously obtained baseline data. Validation experiments using field-collected European corn borer populations from across North America showed that for Cry1Ab, a concentration corresponding to the upper limit of the 95% confidence interval of the LC₉₉, produced mortality .99% for all populations tested. However, for Cry1Ac, adjustments and further validation are probably necessary. Development of B. thuringiensis resistance monitoring programs …

Tubulin And Neurofilament Proteins Are Transported Differently In Axons Of Chicken Motoneurons, Aidong Yuan, Roland G. Mills, Catherine P. Chia, John J. Bray

Papers in Microbiology

1. We previously showed that actin is transported in an unassembled form with its associated proteins actin depolymerizing factor, cofilin, and profilin. Here we examine the specific activities of radioactively labeled tubulin and neurofilament proteins in subcellular fractions of the chicken sciatic nerve following injection of L-[35S]methionine into the lumbar spinal cord. 2. At intervals of 12 and 20 days after injection, nerves were cut into 1-cm segments and separated into Triton X-100-soluble and particulate fractions. Analysis of the fractions by high-resolution two-dimensional gel electrophoresis, immunoblotting, fluorography, and computer densitometry showed that tubulin was transported as a unimodal wave at …

Sp307-G-Protecting Fruit Trees From Winter Injury, The University Of Tennessee Agricultural Extension Service

Commercial Horticulture

Winter freeze damage, also called Southeast trunk injury, can be a problem for young fruit trees growing in Tennessee. This damage can occur on sunny winter days even though temperatures may be quite low. Sunlight striking the tree trunk may raise the temperature of the bark on the lower trunk to 80 or 90 F. Cambial tissue under the bark will lose hardiness. When the sun goes down, trunk temperatures will drop to the same temperature as the air. If this temperature drops below a critical point, these sensitive tissues will be injured or killed.

Sp307-M-Selecting Quality Peaches, The University Of Tennessee Agricultural Extension Service

Home Garden, Lawn, and Landscape

Fresh peaches provide a real summer taste treat. With proper preservation, they may be enjoyed all year long.

Peaches are called the “Queen of Fruits. ” They are grown commercially in most areas of Tennessee except for the Cumberland Plateau and the higher elevations of East Tennessee. Most years the peach harvest in Tennessee will extend from about June 1 through August.

Peaches may be purchased at grocery stores, at fruit and vegetable markets and at the farms where they are grown. On-farm markets may offer harvested fruit for sale or give you the opportunity to pick your own. Since …

Sp291-N-Raised Bed Gardening, The University Of Tennessee Agricultural Extension Service

Home Garden, Lawn, and Landscape

No abstract provided.

Sp341-M-Yellowjacket Wasps In Tennessee, The University Of Tennessee Agricultural Extension Service

Insects, Pests, Plant Diseases and Weeds

In Tennessee, 11 species of yellowjackete wasps can be found (Table 1). These wasps are often considered beneficial as predators of crop pests; however, in late summer they can be pests due to their stinging behavior. This factsheet summarizes information about yellowjacket identification, biology, behavior and lists options for control when needed.

Delivering Copper Within Plant Cells, Edward Himelblau, Richard M. Amasino

Biological Sciences

Two genes recently identified in Arabidopsis thaliana may be involved in sequestering free copper ions in the cytoplasm and delivering copper to post-Golgi vesicles. The genes COPPER CHAPERONE and RESPONSIVE TO ANTAGONIST1 are homologous to copper-trafficking genes from yeast and humans. This plant copper-delivery pathway is required to create functional ethylene receptors. The pathway may also facilitate the transport of copper from senescing leaf tissue. In addition, several other genes have been identified recently that may have a role in copper salvage during senescence.

Energetics Of Larval Swimming And Metamorphosis In Four Species Of Bugula (Bryozoa), Dean E. Wendt

Biological Sciences

The amount of energy available to larvae during swimming, location of a suitable recruitment site, and metamorphosis influences the length of time they can spend in the plankton. Energetic parameters such as swimming speed, oxygen consumption during swimming and metamorphosis, and elemental carbon and nitrogen content were measured for larvae of four species of bryozoans, Bugula neritina, B. simplex, B. stolonifera, and B. turrita. The larvae of these species are aplanktotrophic with a short free-swimming phase ranging from less than one hour to a maximum of about 36 hours. There is about a fivefold difference in larval volume …

Aquaculture Plan For The Recherche Archipelago, Fisheries Western Australia.

Fisheries management papers

Land supply and land cost for aquaculture may become a limiting factor in the foreseeable future. At present, adequate appropriately zoned land is available at reasonable cost. The most prospective land for aquaculture in or near Esperance is where suitable zoned land occurs over saline ground water aquifers or adjacent to the coast. Careful site selection would be necessary to ensure water supply, waste water disposal, services and operational space can be achieved at reasonable cost.

A Quality Future For Recreational Fishing On The West Coast., West Coast Recreational Fishing Working Group

Fisheries management papers

The West Coast Region between Kalbarri and Augusta offers a wide range of recreational fishing opportunities.The West Coast Region also receives more fishing pressure than any other, with an estimated 380 000 anglers fishing each year. Already, the signs of a fishery under pressure are showing. Catch rates of dhufish around inshore reef systems such as the Three-mile are a far cry from the 1950s and 60s when people beachlaunched wooden dinghies to fish the inshore waters for these highly prized fish. Increasing pressure on stocks has led to growing community concerns that the future quality of recreational fishing is …

Dodecatheon Meadia L., John E. Ebinger

Specimens by Name

No abstract provided.

Dodecatheon Meadia L., John E. Ebinger

Specimens by Name

No abstract provided.

Legume Logic Number 118

Legume Logic

Contents

Visual value of pulses

Why not Tanjil?

Regional service grows

Food for thought...

Belara and aphids

...And thoughts to consider

Pulse And Canola Frost Identification:The Back Pocket Guide, Craig White

Bulletins 4000 -

This field guide will help you identify the common symptoms of frost damage in pulse and canola crops. It also contains pictures of other plant symptoms often confused with frost damage in these crops.

Frost damage reduces crop yield and grain quality. Early identification of symptoms allows timely crop salvage decisions to be made.

Inspect pulse and canola crops between bud formation and during pod growth if right air temperature (recorded 1.2 m above ground) falls below 2 degrees celsius and there was a frost.

Check low lying, light coloured soil types and known frost prone areas first. Then check …

Inactivation Of Lmpa, Encoding A Limpii-Related Endosomal Protein, Suppresses The Internalization And Endosomal Trafficking Defects In Profilin-Null Mutants, Lesly A. Temesvari, Linyi Zhang, Brent Fodera, Klaus-Peter Janssen, Michael Schleicher, James A. Caradelli

Publications

Profilin is a key phosphoinositide and actin-binding protein connecting and coordinating changes in signal transduction pathways with alterations in the actin cytoskeleton. Using biochemical assays and microscopic approaches, we demonstrate that profilin-null cells are defective in macropinocytosis, fluid phase efflux, and secretion of lysosomal enzymes but are unexpectedly more efficient in phagocytosis than wild-type cells. Disruption of the lmpA gene encoding a protein (DdLIMP) belonging to the CD36/LIMPII family suppressed, to different degrees, most of the profilin-minus defects, including the increase in F-actin, but did not rescue the secretion defect. Immunofluorescence microscopy indicated that DdLIMP, which is also capable of …

South Dakota Fisheries: An Evaluation Of A Chemical Immersion Marking Technique For Juvenile Yellow Perch And Application To A Stocking Assessment Of Marsh-Reared Yellow Perch Into Eastern South Dakota Lakes, Michael L. Brown, Todd St. Sauver, David O. Lucchesi, Jennifer L. Glib, M. Elizabeth Reinhart

Natural Resource Management Faculty Publications

Currently, yellow perch Perca flavescens stocking needs in South Dakota are met by intensive trap and transfer of juvenile and adult perch. The success of these stocking efforts is largely undocumented, primarily due to problems in distinguishing yellow perch produced within the recipient water body and stocked perch. We first developed a transfer-tank marking protocol to determine immersion duration and optimal concentration of oxytetracycline (OTC) hydrochloride needed to produce an effective mark. Then we validated the protocol for adult yellow perch and determined the persistence of OTC in edible muscle tissue. Marking results indicated that satisfactory OTC marks may be …

Nebraska Farm Real Estate Market Developments 1999-2000, Bruce Johnson, Brandon G.Y. Raddatz

Nebraska Farm Real Estate Reports

Nebraska's agricultural real estate market conditions have been monitored and analyzed annually since 1978 by the Department of Agricultural Economics-UNL. In the most recent survey for 2000, the markets for agricultural land were found to have remained relatively unchanged over the past year, despite generally poor farm commodity prices. As of February 1st, 2000, the UNL survey showed the state all-land average value to be $698 per acre, a 1.1 percent increase from 12 months earlier. While the values for particular classes of land across the sub-state areas moved in both directions, the percentage changes from year-earlier levels were generally …

The Occurrence Of The Freshwater Clams, Musculium Partumeium (Say) And Pisidium Casertanum (Poli) (Bivalvia: Sphaeriidae), In The Hawaiian Islands, Albert J. Burky, Carl M. Way, Skippy Hau, M. Eric Benbow

Biology Faculty Publications

Sphaeriid clams were collected from an ancient, continuously cultivated taro pond complex at Ke‘anae Peninsula, Maui. Both species are known for adaptations for temporary pond habitats and could have been initially introduced by the earliest Hawaiian settlers transported with moist taro root stock from other areas of Oceania.

Serum Ferritin Concentration And Recurrence Of Colorectal Adenoma, Marilyn Tseng, E. Robert Greenberg, Robert S. Sandler, John A. Baron, Robert W. Haile, Baruch S. Blumberg, Katherine A. Mcglynn

Kinesiology and Public Health

Abstract Both body iron stores and dietary iron intake have been reported to increase risk of colorectal neoplasms. We assessed whether serum ferritin concentration was associated with recurrence of colorectal adenomas among 733 individuals with baseline determinations of ferritin as part of a multicenter clinical trial of antioxidant supplements for adenoma prevention. All study participants had at least one adenoma removed within 3 months before enrollment, and 269 of them developed one or more adenomas between follow-up colonoscopies conducted 1 and 4 years after enrollment. Baseline serum ferritin concentrations were analyzed both as a log-transformed continuous variable and as a …