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Recent Studies On Flavor Aversion Learning In Wildlife Damage Management, Russell F. Reidinger Jr.

National Wildlife Research Center Repellents Conference 1995

Flavor aversion learning (FAL) occurs experimentally when a mammal is presented with a distinctive-flavored food followed by a postingestional illness. Birds may learn aversions to visual cues. Aversions follow a single pairing and may be robust. During the past decade, at least four directions were followed in evaluating FAL for managing wildlife damage: compounds already registered for use on crops such as herbicides, insecticides, or fungicides were tested for their abilities to also repel birds and small mammals from crops; naturally occurring compounds such as sucrose or charcoal were similarly evaluated; eggs were treated with different compounds in attempts to …

Preprocessing Of Microcirculatory Images., Mohamed S. Mansour

Electronic Theses and Dissertations

This thesis project consists of the development of a computerized image processing system to preprocess microvascular images of the mouse Latisimus Dorsi Muscle (LDM). This research has been conducted in association with the Division of Plastic and Reconstructive Surgery at the University of Louisville. The input to the system is a set of 35 or more overlapping microscopic fields or sub_images containing segments of the LDM microcirculation, the output is an adjacent single montage encompassing the entire LDM microvasculature. The developed system presents practical solutions to the problems of image registration, overlap resolution, and image segmentation, in addition, the results …

The Probe, Issue # 157 -- August 1995

The Probe: Newsletter of the National Animal Damage Control Association

Past, Present and Future: Berry man looks at wildlife damage management, by Katherine Vaughn, Special Correspondent
Japanese "Scarecrow" May Protect Space Shuttle
At Least Six Die From Rabies in 1994
Carbon Monoxide Gassing, Moles, and Pocket Gophers
The $1.5 Million Kitten!
Book Review: Tracking and the Art of Seeing: How to Read Animal Tracks and Sign. By Paul Rezendes.
Reprint policy update for The PROBE
Nominations for Officers and Directors
Trapping Weasels
Video Review: "Moles Make Lousy Pets: A Guide to Effective Control" by Thomas F. Schmidt

Sucrose As A Feeding Deterrent For Fruit-Eating Birds, Carlos Martinez Del Rio, Michael L. Avery, Kristin E. Brugger

National Wildlife Research Center Repellents Conference 1995

Economic losses due to bird damage to small fruits such as blueberries, grapes, and cherries can be very high and are expected to increase in the future. The primary sugars in these fruits are glucose and fructose. Sucrose is present in very low concentrations only. Our research has unveiled a physiological trait common to many fruit-eating species in the phylogenetically related families Muscicapidae, Mirnidae, and Sturnidae. These birds are unable to digest sucrose because they lack the intestinal enzyme sucrase which hydrolyzes sucrose into glucose and fructose prior to absorption. In cage tests these birds prefer glucose and fructose to …

Frequency Of Pattern Occurences In A (Dna) Sequence, Mireille Régnier, Wojciech Szpankowski

Department of Computer Science Technical Reports

No abstract provided.

A Greedy Algorithm For The Shortest Common Superstring Is Asymptotically Optimal, Alan Frieze, Wojciech Szpankowski

Department of Computer Science Technical Reports

No abstract provided.

Red Imported Fire Ant Impacts On Northern Bobwhite Populations, Craig R. Allen, R. Scott Lutz, Stephen Demarais

United States Geological Survey: Staff Publications

The stability of Northern Bobwhite (Colinus virginianus) populations in Texas, where high density polygyne red imported fire ants (Solenopsis invicta) account for >50% of all (S. invicta) colonies, has been cited as a reason to repudiate impacts by this exotic species on Northern Bobwhite. We used two approaches to investigate the relationship between red imported fire ants and Northern Bobwhite. In the first approach, we used correlation analysis to compare Northern Bobwhite abundance trends, determined from Christmas Bird Count data in 15 Texas counties, before and after fire ant infestation. Before red imported fire …

All‐Optical Light Modulation In Bacteriorhodopsin Films, F. J. Aranda, R. Garimella, N. F. Mccarthy, D. Narayana Rao, D.V.G.L.N. Rao, Z. Chen, J. A. Akkar, D. L. Kaplan

Physics Faculty Publications

We report a convenient method to obtain all‐optical light modulation in bacteriorhodopsin films using a degenerate four‐wave mixing geometry. Chemically stabilized films of bacteriorhodopsin in a polymer matrix for which the lifetime of the excited M state is tens of seconds were used to demonstrate all‐optical light intensity modulation. The films are observed to be stable over a period of 4 years. Due to the sensitivity of the films, small intensities of order microwatt/ cm² are required in the modulation experiments. Furthermore the fast photochemical transition from M to B permit reasonably fast modulation speeds independent of the slow …

On Detection And Use Of Reflectional Symmetry In Computer Vision., Dipti Prasad Mukherjee Dr.

Doctoral Theses

The problems of detection and use of reflectional symmetry in the images of planar shape contours are studied. Symmetry, in general, provides important shape representation cues, some of which we utilise here, to acquire viewpoint information and, towards model based shape matching. We concentrate on local reflectional symmetries of emoothly curved planar objecta, though the methoda are equally applicable to polygonal objects; even this could be extended to certain three-dimensional shapes and for other object relations such as rotational symmetry.Under the affine or perspective approximation to image projection, properties of geometrie invariance are used to find (reflectional) symmetric contour pairs. …

37th Rocky Mountain Conference On Analytical Chemistry

Rocky Mountain Conference on Magnetic Resonance

Final program, abstracts, and information about the 37th annual meeting of the Rocky Mountain Conference on Analytical Chemistry, co-sponsored by the Colorado Section of the American Chemical Society and the Rocky Mountain Section of the Society for Applied Spectroscopy. Held in Denver, Colorado, July 23-27, 1995.

Animal Waste And The Land-Water Interface, H. Don Scott, Kenneth Steele

Arkansas Water Resources Center Technical Reports

This book presents abstracts of research studies conducted on animal wastes and the interface between application of animal waste to land. The abstracts were divided into sections which tend to organize summaries of research studies conducted on similar topics. These topics range from characteristics of animal waste to the effects of animal wastes on streams, lakes, wetlands, and watersheds, development of best management practices, nutrient management, edge of field losses and alternative uses. The posters will be available for viewing from 10:00 a.m. Monday, July 17, until 12:00 noon on Wednesday, July 19, 1995.

Origins Of Effective Charge Of Multivalent Ions At A Membrane/Water Interface And Distribution Of 2,3,4,5-Tetrachlorophenol In A Membrane Model System, Piet O. Schmidt

Dissertations and Theses

Biological cells and subcellular organelles are surrounded by membranes to form compartments performing specialized functions. Adsorption or partitioning of biologically active compounds into the membrane is the first step in the process of modification of cell function. This work is concerned with the problem of distribution of charged molecules between water and electrically charged membrane surface and between water and octanol. Part I of this thesis is focused on the electrostatic interactions taking place between charges on the membrane and ions present in the aqueous region of the membrane/water interface. The objective was to explore theoretically the origin of anomalous …

The Probe, Issue # 156 -- July 1995

The Probe: Newsletter of the National Animal Damage Control Association

An Update on the ADC Brown Tree Snake Control Program, by Tim J. Ohasi, USDA-APHIS-ADC, 3375 Koapaka St., Suite H-420, Honolulu, HI 96819
Deer Contraception Proves to Be Costly Failure
Kangaroos Off the Threatened Species List
Animal Rights Protesters Target AT&T Gopher Experiments
Vampire Bats Plague Mexican Ranchers
Do Mixed Gender Teams Complicate Fieldwork?, by Robert H. Giles, Jr., Department of Fisheries and Wildlife Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0321
Bird Strike-USA Committee Meeting
Trapping Weasels
Errata from June PROBE
Video Review - "Removing Raccoons From Chimneys"

Environments Of The Four Tryptophans In The Extracellular Domain Of Human Tissue Factor: Comparison Of Results From Absorption And Fluorescence Difference Spectra Of Tryptophan Replacement Mutants With The Crystal Structure Of The Wild-Type Protein, C. A. Hasselbacher, E. Rusinova, R. Rusinova, R. A. Kohanski, W. Lam, A. Guha, J. Du, T. C. Lin, I. Polikarpov, C. W. G. Boys, Y. Nemerson, W. H. Konigsberg, J. B. A. Ross

Chemistry and Biochemistry Faculty Publications

The local environments of the four tryptophan residues of the extracellular domain of human tissue factor (sTF) were assessed from difference absorption and fluorescence spectra. The difference spectra were derived by subtracting spectra from single Trp-to-Phe or Trp-to-Tyr replacement mutants from the corresponding spectrum of the wild-type protein. Each of the mutants was capable of enhancing the proteolytic activity of factor Vila showing that the mutations did not introduce major structural changes, although the mutants were more susceptible to denaturation by guanidinium chloride. The difference spectra indicate that the Trp residues are buried to different extents within the protein matrix. …

Environmental Changes In A Polluted Stream During Winter, Arden R. Gaufin, Clarence M. Tarzwell

United States Environmental Protection Agency: Publications

Year round studies of environmental conditions in Lytle Creek, a stream polluted with organic wastes, were initiated late in 1949, by the Biology Section of the Public Health Service's Environmental Health Center.2 Lytle Creek is a tributary of the Little Miami River which enters the Ohio River at Cincinnati. It is about 11 miles long, and has an average width and depth of 15 feet and 1 foot respectively, during normal summer flows. Widths range from 3 to 35 feet and depths from a few inches to a maximum of 6 feet. Surface runoff comprises the major portion of the …

Circulation, Summer 1995, Center For Coastal Physical Oceanography, Old Dominion University

CCPO Circulation

Summer 1995 issue of CCPO Circulation featuring article "The U. S. Coastal Ocean Is in Alaska!"

Results Of The City Of Tampa Surface Water Compliance Monitoring Program For The Year 1994 And Examination Of Long-Term Water Quality And Biological Indicator Trends In Hillsborough Bay, City Of Tampa Department Of Sanitary Sewers

Reports

This report is submitted to the Florida Department of Environmental Protection (FDEP) to satisfy the requirements set forth in specific condition No. 14 of the Howard F. Curren WWTP permit No. D029-184532B. The report is based on data obtained by the City of Tampa (COT) compliance water quality monitoring program approved under construction permit DC29-152799. The report also includes examination of long-term trends for water quality parameters and biological indicators collected by the City of Tampa Bay Study Group and the Environmental Protection Commission of Hillsborough County (EPC).

Center For Sustainable Agricultural Systems Newsletter, July/August 1995

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

Contents:

Center for Rural Affairs Holds Annual Meeting

SARE/ACE Preproposals Due Sept. 15

Regional Training Program Awards Minigrants

Reduced Herbicide Weed Control

Interested in Biofuels?

Cast Report Summarizes Crp Survey

New San Coordinator

USDA Office of Sustainable Ag Programs Has Two Job Openings

Ag Resource Conservation Act

Listserv on Land Use and Other Resources

E-mail Network for Ecological Agriculture

Weed Electronic Discussion Group

Fairwell Michele

Interview: Brenda Laurel, Jason Challas

SWITCH

This interview with Brenda Laurel, Virtual Reality (VR) author and thinker, discusses the applications and challenges of VR. Creating an emphatic experience using VR technology is possible, but the challenge lies in designing an environment that models the senses to stimulate emotions. VR enables experiences of different genders, but physiological differences between the sexes exist and are important to understand. However, technology used to create the environment and simulation of physical objects in VR is only in the developmental stage. Laurel believes in the importance of keeping the mind grounded in the physical body, in order to strengthen the appreciation …

The Imprudence Of Prudent Avoidance, David W. Hafemeister

Physics

No abstract provided.

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.

Trophic Transfer Of Fatty Acids, Sterols, And A Triterpenoid Alcohol Between Bacteria, A Ciliate, And The Copepod Acartia Tonsa, Melissa C. Ederington, George B. Mcmanus, H. Rodger Harvey

OES Faculty Publications

The incorporation of lipids into the copepod Acartia tonsa and its eggs was measured when it was fed either a bacterivorous ciliate (Pleuronema sp.) or a diatom (Thalassiosira weissflogii). Egg production was 10-fold higher on the diatom diet, whereas hatch success of eggs was the same for algal and ciliate diets. Adult copepods fed diatoms contained more total fatty acid and sterols than copepods fed the ciliate diet, and individual lipids reflected the dietary source. Eggs from diatom-fed copepods had fewer fatty acids but more sterols than eggs from copepods on a ciliate diet. Ciliate-fed copepods and …

Zooplankton Community Dynamics In The Elizabeth River, Virginia, William C. Sharp

Biological Sciences Theses & Dissertations

Zooplankton community structure and dynamics were studied over a 12 month period in the Elizabeth River, an industrially polluted tidal river in the Chesapeake Bay estuarine system. An additional site in this estuary (Hampton Roads) was sampled for comparative purposes. Multivariate analysis indicated five distinct temporal groups occurred during the year, but there were no significant differences in spatial composition within the river. Maximum zooplankton concentrations were observed in July and lowest abundances were observed in February, March, and November. Copepods, especially Acartia species, were the most abundant components of the zooplankton community, comprising 67 to 93% of the total …

Searching For Sustainable Use Of Montana’S Water: A Series Of Vignettes, Matthew Mckinney

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

24 pages.

Contains references.

A Meeting Of Opposites—Is Sustainable Use Of The Columbia River Possible?, John M. Volkman

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

47 pages.

Contains footnotes.

Restoring The Rio Grande—What Will It Take?, Denise Fort

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

18 pages.

Contains 1 page of references.

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.

Sustainability: Myth And Reality, Kai Lee

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

23 pages (includes illustrations).

Contains references.

Low Dose, Robert Katz, Francis A. Cucinotta

Robert Katz Publications

Low doses of radiation are frequently inferred to mean doses of the order of 10-100 mGy, regardless of the end point or the nature of the irradiation, as if the energy were deposited uniformly through all targets. Yet, the fluence in a charged particle beam at which there is an average of 1 charged particle transit per target leaves 37% of the targets untouched. At an average of 3 transits per target, 5% of the targets experience no particle transits. Only at an average of 5 transits per target do 99% of the targets achieve one or more transits. One …

Effects Of Zebra Mussel, Dreissena Polymorpha, Infestation On Lake Dardanelle Water Quality, Charles J. Gagen, Joseph N. Stoeckel

Arkansas Water Resources Center Technical Reports

Zebra mussels recently invaded southern waterways including the Arkansas River. Exponential population growth and high filtration capacity of dense populations could alter reservoir ecosystem function. Furthermore, they attach to hard surfaces; thus, threatening normal operations of many artificial structures. We designed this study to provide baseline data prior to high population levels of zebra mussels in Lake Dardanelle. The characterization of spatial and temporal variability in water quality, zooplankton, phytoplankton, and macrophytes will allow testing of several hypotheses. We sampled zebra mussel density and zooplankton at four fixed sites and the other key variables at three of these sites biweekly …