Digital Commons Network^™

A Study Of The Macrobenthic Community In Lake Cochrane, South Dakota, David R. German

Electronic Theses and Dissertations

As part of a continuing study of the biological community of Lake Cochrane, South Dakota, a quantitative survey of the macroscopic bottom fauna was made between the early part of April, 1976 and December, 1976. It was hoped that such a study could provide baseline data for an understanding of the interactions that occur between benthic organisms and other biological components of the lake system. The lake's primary productivity and phytoplankton and zooplankton standing crops have previously been studied by Haertel (1972, 1976) and Steinberg (1972). When this study was being conducted, sediment control dams were being built on three …

Mycobacteriosis (Tuberculosis) Of Fishes, S. F. Snieszko

United States Fish and Wildlife Service: Publications

Mycobacteria are widely distributed in nature. They are abundant in the soil, on the surface of plants, on the skin of vertebrates, in human food (e.g., milk and butter), and in animal feeds. Most mycobacteria are saprophytic, but some species are highly pathogenic and cause diseases such as tuberculosis and leprosy in humans, and similar diseases in mammals, birds, reptiles, amphibians, and fishes.

Mycobacteria that cause diseases of fishes differ considerably from those that cause diseases in humans and other mammals. Therefore, to avoid association between tuberculosis in mammals and mycobacterial infections in fishes, it is better to call the …

A Study Of Vascular Plants On Rock Outcrops In Southwestern West Virginia, Sheila Kay Adkins Zeto

Theses, Dissertations and Capstones

A total of 223 species of vascular plants representing 66 families were collected from rock outcrops at five study sites in Cabell, Wayne and Lincoln Counties, southwestern West Virginia. Eighteen species (8.07 percent) were present at all five sites with little regard for site conditions. One hundred seventeen species (52,4 percent) were restricted to only one of the five sites. The outcrop flora included nine species (5.03 percent) that are considered introduced elements, Forty-eight species were new additions to the flora of one or more of the counties studied, Floristic similarity coefficients of five sites range .from .347 to .512. …

Assays Of The Metabolic Viability Of Single Giant Mitochondria. Experiments With Intact And Impaled Mitochondria, B. L. Maloff, S. P. Scordilis, H. Tedeschi

Biological Sciences: Faculty Publications

Single giant mitochondria isolated from mice fed cuprizone were assayed for their metabolic viability. Two tests were devised. One test optically detected the accumulation of calcium phosphate within the mitochondria under massive loading conditions (including the presence of succinate and ATP). The accumulation corresponds to a test of energy coupling from either electron transport or the hydrolysis of ATP since it is blocked by either antimycin A or oligomycin. The other assay tested for the production of ATP from ADP and Pi, using myofibrils. Myofibrils prepared from glycerinated rabbit psoas muscle contract only in the presence of ATP and not …

The Effect Of Temperature On The Life Cycle Of Drosophila Nebulosa, Scott S. Nagatani

University of the Pacific Theses and Dissertations

It is the purpose of this research to study the effect of temperature on the life cycle of D. nebulosa. D. nebulosa is considered a stenothermal species from a warm environment and has been reported in Texas and Florida, the West Indies, Mexico, Central America, and as far south as Brazil. According to the hypothesis of Hunter (1964), the capacity of this species for adaptation to different temperatures would not be expected to be as great as that of a eurythermal species. Stenothermal species are relatively limited by the environmental temperature, and therefore, one would expect a marked decrease in …

Some Analogies Of Hierarchical Order In Biology And Linguistics, Martin Zwick

Complex Systems Faculty Publications and Presentations

The ubiquity of hierarchical order is obvious, and the obvious is hard to explain, but a number of workers [1] have suggested the possibility of constructing a theory (or cluster of theories), rooted in such disciplines as thermodynamics, information theory, topology, and logic, which might reveal the underlying unity of a wide variety of branching and multi-level systems. It is the purpose of this paper to contribute to both the empirical and theoretical aspects of this discussion, by examining levels of structure and function in molecular biology and linguistics, and by developing, from parallelisms between these two areas, a hierarchical …

Lactose Variability Of Escherichia Coli In Thermally Stressed Reactor Effluent Waters, K. L. Kasweck, C. B. Fliermans

Ocean Engineering and Marine Sciences Faculty Publications

Lactose-utilizing and nalidixic acid-resistant populations of Escherichia coli, having an optimum growth temperature of 370C, were placed in modified diffusion chambers. The chambers were submerged in the epilimnion and hypolimnion of a 1,100-hectare lake (Par Pond) which receives cooling water from a nuclear production reactor. Control chambers were placed in a deep-water reservoir and a Flowing-Streams Laboratory, both of which had comparable temperatures to Par Pond. The populations of E. coli were sampled regularly for up to 3 weeks. Viability of the bacteria was determined by dilution plating to nutrient agar followed by replicate plating onto selective medium to determine …

Controle De Anticarsia Gemmatalis Hübner, 1818 (Lepidoptera- Noctuidae) Com Ph 6040 Em Baixas Dosagens, E. A. Heinrichs, R. F. Pires Da Silva

Department of Entomology: Faculty Publications

Em estudo realizado na Estação Experimental Agronômica da Universidade Federal du Rio Grande do Sul, foi verificada a ação de cinco dosagens de PH 6040 (1·(4-chlorophenyl)-3-(2,6 difluorobenzoyl)-Urea) sobre a «Lagarta da soja», Anticarsia gemmatalis.

Em blocos casualizados, o produto foi testado nas dosagens de 5, 10, 20, 40 e 80 gramas de p.a./ha. A análise estatistica evidenciou superioridade das dosagens de 20, 40 e 80 gramas, que proporcionaram periodo mais longo de proteção das plantas contra o desfolhamento provocado pela prage bem como maiores rendimentos de grãos.

Avaliação Dos Danos Causados Por (Westwood, 1837) (Hemiptera, Pentatomidae), Em Diferen Tes Niveis E Épocas De Infestação, Na Qualidade Da Semente De Soja (Glycine Max (L.) Merrill), M. H. M. Galileo, Elvis A. Heinrichs

Department of Entomology: Faculty Publications

Assessment of soybean seed quality in relation to the damage caused by Piezodorus guildinii (Westwood, 1837) (Hemiptera, Pentatornidae) at various infestation levels and at diferent stages of soybean development (Glycine max (L.) Merrill). Stinkbug effect on soybean seed quality was studied. Field tests were carried out in Guaiba, Rio Grande do Sul, 1974/75. Soybean plants were artificially infested at various densities of Piezodorus guildinii (Westwood, 1837) per 0.5m of row and at different stages of soybean development by means of isolation cages. Stinkbug infestations restricted from full bloom up to the beginning of pod formation do not result in …

Retençáo Foliar Em Plantas De Soja (Glycine Max (L.) Merrill), Resultante Da Açáo De Piezodorus Guildinii (Westwood, 1837) (Hemiptera, Pentatomidae), Em Diferentes Níveis E Épocas De Infestaçáo, M. H.M. Galileo, Elvis A. Heinrichs

Department of Entomology: Faculty Publications

Foliar retention in soybean (Glyaine max (L.) Merril) as effected by levels and period of infestation with Piezodorus guildinii (Westwood, 1837) (Herniptera, Pentatornidae)

The effect of stinkbug on foliar retention in soybean was studied. Field tests were carried out in Guaiba, Rio Grande do Sul, 1974/75. Soybean plants were artificially infested at various densities of Piezodorus guildinii (Westwood, 1837), per 0,5m of row and at different stages of soybean development by means of isolation cages. Foliar retention occurred when plants were infested continuosly, from full to the complete physiological maturity of the seed. This phenomenon was not observed when infestations …

The Effects Of Residual Chlorine On Selected Microflora Of Kickapoo And Cassell Creek, James A. Mcgaughey

Masters Theses

The survival of fecal coliforms, fecal streptococci, and heterotrophs after exposure to chlorine were compared in receiving waters of the Mattoon and Charleston, Illinois waste treatment facilities employing membrane filter techniques and Standard Plate Counts. Water samples were taken from receiving waters upstream from the treatment plant, from secondary effluent and chlorinated secondary effluent within the plant, and from downstream receiving waters. Stream flow contribution and plant effluent contribution required the calculation of dilution factors to determine expected numbers of the various microflora found downstream assuming no residual chlorine effect. Total chlorine concentration was measured by amperometric titration at the …

Ten-Year Index To The Prairie Naturalist Vols. 1-10 (1968-1978), Virginia Steinhaus

The Prairie Naturalist

11 pages

From: ACANTHOMYOPS CLAVIGER,

to: Zink, R.M.,

Mirid Fauna Associated With Old-Field Goldenrods (Solidago: Compositae) In Ithaca, N.Y., Frank J. Messina

Biology Faculty Publications

The mirid fauna associated with oldfield goldenrods (Solidago spp.) was sampled from May 10-Oct. 25, 1977 in Ithaca, New York USA . Species (23) belonging to 16 genera were recorded; 97% of all individuals (1099) belong to 6 genera (Lygus, Slaterocoris, Lopidea, Plagiognathus, Adelphocoris and Polymerus). The tarnished plant bug, Lygus lineolaris, was the most common species. The dominant mirids can be divided into 2 fairly distinct guilds, L. lineolaris, 2 Plagiognathus spp. and A. rapidus feeding primarily on goldenrod flowers and 3 Slaterocoris spp., Lopidea media and Polymerus venaticus feeding on the immature foliage. The phenological pattern exhibited by …

Biochemical Characteristics And Antibiogram Patterns Of Some Gram-Negative Nonfermentors, Donald E. Berkowitz

University of the Pacific Theses and Dissertations

This study was undertaken, chiefly, for the purpose of characterizing biochemically a random sample of non fermentative bacilli obtained from local hospitals and determining the prevalence of Ps. aeruginosa among them. A second objective was to compare the antibiogram patterns obtained in this study with those reported by other investigators, and thirdly to establish a baseline for future comparative studies.

The Metabolism Of Linolenic Acid In Developing Rat Brain, Barney E. Dwyer

Dissertations

No abstract provided.

Cytology And Physiology Of Arthrospore Formation In The Dermatophyte Trichophyton Mentagrophytes, Ruth Gail Emyanitoff

Dissertations

No abstract provided.

Characterization Of Pseudomonas Cepacia Using Biochemical, Antibiotic Susceptibility And Serological Tests, Beatrice Grazina Miceika

Master's Theses

No abstract provided.

Characterization Of The Nonfermentative Gram Negative Rods Of Group Iik Utilizing Biochemical, Serological, And Antibiotic Susceptibility Tests, Donna S. Granstrom

Master's Theses

No abstract provided.

Insulin And Altered Reticuloendothelial System Function, Angela M. Hadbavny

Master's Theses

No abstract provided.

Antimicrobial Activity Of Plant Extracts, Melinda J. Seid

University of the Pacific Theses and Dissertations

The purpose of this study was to investigate a possible antimicrobial activity in the following plants: Brunfelsia hopeana, Anemopsis californica, and Heimia salicifolia against Staphylococcus aureus, a Gram-positive coccus, Escherichia coli, a Gram-negative fermenter, Pseudomonas aeruginosa, a Gram-negative non-fermenter, and the yeast Candida albicans.

Biochemical And Antibiogram Characteristics Of Certain Enterobacteriaceae, John Shaffer

University of the Pacific Theses and Dissertations

This study is a continuation of the investigations of Hall (1976), Storey (1977), and Berkowitz (1978) on antimicrobial susceptibility patterns of bacteria isolated from local hospitals in Stockton, California. It extends the work of Hall (1976) on the K-E-S group to include three species of Proteus and Escherichia coli. New antibiotics (tobramycin, amikacin and cefamandole) are also added to the antibiogram.

Studies On Uveitis Part I: Aqueous Studies, Philip C. Hessburg

Henry Ford Hospital Medical Journal

Aqueous microbiological and cytological studies were performed on 134 anterior chamber taps done on 118 patients both with and without uveitis. Cell wall defective bacterial forms (CWDF) were recovered from about 40% of these aqueous specimens and classical bacteria were recovered from 12%. A statistically significant difference could not be found between the incidence of bacterial cell wall defective forms in the various anatomical types of uveitis. There were hints from this work that the presence of CWDF In the aqueous was more frequent in younger patients with uveitis, early in the uveitis attack, if there were multiple foci of …

The Biology Of Coprinus Radians, Ozonium, Oidium, And Their Interrelationships, Thomas J. Fahey

All-Inclusive List of Electronic Theses and Dissertations

The pleomorphism of Coprinus radians was studied. The three distinct growth forms--sporophore, oidial stage, and ozonium stage--were examined in relation to ultrastructure, morphology and development. Scanning and transmission electron microscopy are correlated with photomicrographs of developmental stages. Development of the oidia and of the sporophore are of particular interest. The multinucleate oidia develop quite differently from oidia as generally described for Basidiomycete imperfect stages. Development of the oidia of this Coprinus is holoblastic and sympodial. The mushroom primordia are differentiated internally into gill, cap, and stipe hyphae while only l-2mm in diameter. At this stage they look superficially like sclerotial …

Use Of Lignite Fly Ash As A Soil Amendment, Thomas Victor Brown

Electronic Theses and Dissertations

One-year-old loblolly pine (Pinus taeda L.) seedlings were grown in a greenhouse in potted mixtures of two Texas lignite fly ashes and a Troup sand, Sacul sandy loam, and a sandy clay loam strip-mine spoil. Mixtures contained 0, 25, 50, 75 and 100 percent fly ash. After six months, soil fly ash mixtures were analyzed for N, P, Ca, Mg, K, Na, Mn, Zn, pH, cation-exchange capacity, percent base saturation, and texture. Needle and root tissue analyses were performed on both live and dead seedlings. Survival and height growth were both adversely affected by fly ash amendments. Nearly all seedlings …

Farm, Ranch And Home Quarterly Institute Of Agriculture And Natural Resources, University Of Nebraska- Lincoln

Farm, Ranch and Home Quarterly

In this issue:

2 From the Vice Chancellor

3 Behind the Branches

5 Loneliness

7 Sprayer Kills Weed Escapes and Recovers Your Herbicide

9 4-H Camps Serve Thousands

10 Enterprise Budgets Easier with AGNET's CROPBUDGET

12 Holiday Plants

15 Child Abusers: Myths and Realities

17 Tan Spot: NewBlight Threatens Wheat Growers

19 Composting Converts Waste Into Valuable Resources

22 Foundation Seed Division-Seeds' Genetic Purity Ensured

Louisiana Agriculture Magazine, Fall 1977, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

Herpetomonas Megaseliae And Crithidia Harmosa: Growth On Blood-Agar Plates, Amy Doran Kepel, John J. Janovy Jr.

John J. Janovy, Jr. Publications

A technique for culturing two species of trypanosomatid flagellates on blood-agar plates is described. Herpetomonas megaseliae and Crithidia harmosa were grown as discrete clone colonies on plates prepared in sterile petri dishes with a medium derived from that of Tobie et al. (1950, J. Parasitol. 36: 48-54). Plates were inoculated with 0.01 ml flagellate suspension and the inoculum was spread evenly over the surface of the agar with a sterile glass spreader. Plates were incubated in a high humidity chamber at 25 C and colonies of both species, easily visible to the unaided eye, appeared within 1 week. There was …

Nematicidal Injection: Targeted Control Of Plant-Parasitic Nematodes Of Trees And Vines, D. R. Viglierchio, Armand R. Maggenti, R. V. Schmitt, G. A. Paxman

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Pressurized injection of nematicidal solutions was effective for control of nematodes within trees and vines. Significant (P = 0.01) control of Pratylenchus vulnus on grape was attained with four nonfumigants (carbofuran, oxamyl, phenamiphos, and sulfocarb) and one fumigant nematicide (DBCP). Pratylenchus penetrans was controlled (P = 0.05 and 0.1) in apples and walnuts with sulfocarb and oxamyl. This species also was controlled in apples with carbofuran and phenamiphos. The advantages of pressure injection over traditional methods of nematicide applications are discussed.

The Water-Soluble Contrast Medium Lumbar Myelogram And Its Surgical Correlations, Henri C. Labasse

Henry Ford Hospital Medical Journal

The water-soluble contrast medium lumbar myelogram is a very helpful tool in the diagnosis of herniated nucleus pulposus (EfNP) in patients who suffer unilateral root pain of mechanical course. One can often make the differential diagnosis between a ruptured disc and a protruding disc. Unless the disc fragment lies way out in the intervertebral foramen, the myelogram will show some kind of anomaly. Therefore, fewer exploratory operations will be performed on patients having normal myelograms. Metrisamide, a newcomer among the water-soluble contrast media, is nontoxic for the spinal cord. Therefore, if the usual myelogram is normal and one fears a …

Selective Cerebral Arteriography And The Cat Scan In Acoustic Tumors, Donald C. Austin

Henry Ford Hospital Medical Journal

Increasing experience with selective cerebral arteriography in the diagnostic evaluation of acoustic tumors has led to a more rational determination of the proper surgical approach to the lesion. It also predicts the necessity for staging the surgical procedure, reduces the potential for intraoperative complications and rules out other types of angle lesions and the possible necessity for performing a preoperative, concomitant or postoperative shunting procedure. The CAT scan has added an important screening procedure in predicting the presence of an angle lesion, determining the need for further diagnostic studies and evaluating the possible presence or absence of a recurrent tumor …