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Filtering by: Creator Garza-Gil, M. Dolores Remove constraint Creator: Garza-Gil, M. Dolores Decade 1970-1979 Remove constraint Decade: 1970-1979 Degree Name Master of Science (M.S.) Remove constraint Degree Name: Master of Science (M.S.)

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  • Hydroxyindole-O-methyltransferase (HIOMT) activity in the pineal of chinook salmon (Oncorhynchus tshawytscha)

    Creator:
    Birks, Eric K.
    Abstract:
    C-methyltransferase (HIOMT) in chinook salmon (Oncorhynchus tshawytscha). Various body tissues, as well as several morphological brain divisions were tested for the presence of HIOMT. Activity was found in the retina, the dorsal portion of the diencephalon, and in the pineal gland of chinook. However, the activity was significantly higher in...
    Resource Type:
    Masters Thesis
    Full Text:
    obtained when pineals were homogenized in Redacted for Privacy 0.2 M sodium phosphate buffer, - y 7.6

  • A review of the deep water Liparidae from the coast of Oregon and adjacent waters

    Creator:
    Stein, David L.
    Abstract:
    Descriptions and distributions are given of 28 species of Liparidae occurring or possibly occurring below 200 m between San Francisco and northern Vancouver Island, with keys for their identifications. Nine genera are included: Careproctus, Elassodiscus, Lipariscus, Nectoliparis, Rhinoliparis, Acantholiparis, Paraliparis, and two new genera are described, Odontoliparis and Osteodiscus. Eight...
    Resource Type:
    Masters Thesis
    Full Text:
    possibly occurring below 200 m between San Francisco and northern Vancouver Island, with keys for their

  • Population dynamics of Microtus canicaudus

    Creator:
    Gilston, Richard Robert
    Abstract:
    Four experimental groups were designed to examine the effects of a "greens" dietary supplement (wheat clippings), as well as individual versus group-housing, on the adrenal and reproductive physiology of Microtus canicaudus. Organ culture of adrenal glands, thin-layer chromatography, and fluorescence analysis of steroid-containing medium were used to quantitatively assess adrenal...
    Resource Type:
    Masters Thesis
    Full Text:
    an estrous condition than controls irrespective of housing conditions. Breeding experiments with M

  • Structure of the Panama Basin from marine gravity data

    Creator:
    Barday, Robert James
    Abstract:
    In order to quantitatively examine the crustal structure of the Panama Basin without the benefit of local seismic refraction data, the following assumptions were made: (1) No significant lateral changes in density take place below a depth of 50 km. (2) The densities of the crustal layers are those of...
    Resource Type:
    Masters Thesis
    Full Text:
    40 million years (m. y. ) in age. (3) The density of the upper mantle is constant to a depth of SO

  • Distribution and variation of Armillariella mellea clones in relation to vegetative cover and severity of root rot in Ponderosa pine

    Creator:
    Cooley, Sally Joan
    Abstract:
    Root rot due to Armillariella mellea (Vahl. ex Fr.) Karst. is unusually severe in ponderosa pine near Glenwood, Washington. Isolate relations, clonal variability, vegetation patterns, and climate were examined in relation to severity of disease in this area. Ninety-one isolates from 70 infection centers were examined. Pairings of neighboring isolates...
    Resource Type:
    Masters Thesis
    Full Text:
    on a 1.0 m/yr. rate of spread. The age of the largest clone found was calculated to be 1,126 years

  • The distribution and role of "available" iron in two estuaries

    Creator:
    Holden, Robert Bennett
    Abstract:
    A detailed study of iron concentrations measured by the reducible, reactive ferrous, and extractable methods was conducted in Auke Bay, Alaska during June 1973 and in Hood Canal, Washington during October 1973 and April 1974. The concentrations by each method were generally highest at the bottom and decreased towards the...
    Resource Type:
    Masters Thesis
    Full Text:
    - phragm and 045 m Milliporefilter. Theair temperature during squeezing was approximately equal to the

  • The almond industry of Mexico

    Creator:
    Edwards, Susan
    Abstract:
    Almond growth has recently been initiated in Mexico in the effort to realize commercial production. This research paper is an evaluation of the physical environment conditions which favor almond production and an attempt to apply them to Mexico. It is shown that areas in the Northwest and Central Plateau are...
    Resource Type:
    Capstone Project
    Full Text:
    affect almond pro- duction, as illustrated by the following quotation from M. Donald Rough, Farm

  • The biology and pathogenicity of a sheath nematode Hemicycliophora similis Thorne, 1955

    Creator:
    McKewan, Jeanette Anne
    Abstract:
    A study, using greenhouse and laboratory experiments, was made of Hemicycliophora similis from Bandon, Oregon to determine: identity and morphometrics, time and development of a life cycle, host plant preferences and optimum environmental conditions for reproduction and pathogenicity. Morphometric investigations revealed discrepancies between the measurements of this nematode species and...
    Resource Type:
    Masters Thesis
    Full Text:
    . Esser, H. J. Jensen and B. M. Zuckerman suggested the variations noted do not necessitate describing a

  • Epizootiology of leptospirosis in some wild mammals in western Oregon

    Creator:
    Stewart, Thomas Walter
    Abstract:
    Two hundred thirteen mammals were captured on two study areas between April 1976 and August 1977. Samples of urine and kidney tissue from 202 mammals were cultured on media suitable for leptospiral growth. Leptospiral organisms were not isolated from tissue cultures. Sera from 88 mammals were examined by the microscopic...
    Resource Type:
    Masters Thesis
    Full Text:
    gratefully extended to Dolores Wyse for assistance in many aspects of the laboratory work associated with

  • Cation exchange properties of forest litter as influenced by vegetation type and decomposition

    Creator:
    Warner, Susan Ann
    Abstract:
    Decomposition of forest litter is a complex process involving interactions between physical, chemical and biological factors. As litter decomposes it is chemically altered. Cation exchange capacities of litter represent a means of characterizing the number of hydrophilic acid groups. Some kind of soil-root ion exchange mechanisms are utilized by the...
    Resource Type:
    Masters Thesis
    Full Text:
    Dolores Dunn for Susan Ann Warner ACKNOWLEDGEMENTS I thank my major professor, Dr. C. T. Youngberg