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Regeneration In Zebrafish, Brachydanio Rerio, Gabriel J. Ekandem

Master's Theses

No abstract provided.

Immunodeficiency Diseases And Tumor Immunobiology, Rene J. Duquesnoy, Peter A. Abramoff

Biological Sciences Faculty Research and Publications

No abstract provided.

Ultrastructure Of Inclusion Bodies In The Transitional Epithelium Of Monkey Urinary Bladder, Alan B. Weckerling

Theses & Dissertations

It has been noted that hematoxylin-eosin stained surface cells in the transitional epithelium of certain animals occasionally contain acidophilic inclusion bodies. These can be observed in monkey kidney pelvis, ureter, urinary bladder, and urethra. In one species of monkey, Macaca fascicularis, the inclusion bodies are quite prevalent and apparently are not related to any pathologic or experimental condition. They are highly refractile under the light microscope, a property which often indicates structures below the resolving power of the microscope. This study was designed to explore the composition and structure of these inclusion bodies. Procedures were selected to detect the presence …

Comparative Renal Efficiencies In Five Species Of Peromyscus, Kenneth W. Andersen

Biology ETDs

Renal efficiencies were determined in five species of Peromyscus: P. maniculatus rufinus, P. leucopus tornillio, P. boylii rowleyi, P. difficilis nasutus, and P. t. truei. The animals were treated at three levels of drinking water availability: ad libitum, one-half ad libitum, and deprivation. At each regimen urine osmolality, urine urea concentration, plasma concentration, urine volume, and animal weight were determined. Effects of the water stresses on these parameters are discussed.

During the most stressful regimen (water deprivation) P.maniculatus, P. leucopus and P.boylii had averageurine concentrations of 3950, 4100, and 4100 mOsmols/ kg H2o respectively. Average concentrations for P.difficilis and P. …

Lead Content Of Hair Of Urban And Rural Populations Of Small Mammals, Richard Brian Raymond

Dissertations and Theses

Hair from small mammals of roadside, urban parkland, wilderness, and antique populations was analyzed for lead by atomic absorption spectrophotometry. Hair from roadside populations had a significantly greater amount of lead than hair from the ether groups. Hair from antique populations did not differ in lead content from that of current populations which are removed from immediate exposure to automotive exhausts.

A Comparison Of Vegetation Structure And Composition In Modified And Natural Chaparral, John A. Rosario

Loma Linda University Electronic Theses, Dissertations & Projects

Type conversion of a 12 acre plot of chamise chaparral to grassland in the Mud Flat region of the San Bernardino National Forest, San Gorgonio District, California, was completed in 1967.

The conversion was accomplished following standard type conversion techniques for chaparral in California and included retention of a mosaic pattern of islands of the original chaparral for the purpose of improving scenic quality and maximizing edge effect. The islands constituted approximately 9 per cent of the total 12 acres and averaged 3800 square feet per island with an average distance measurement between islands of 96 feet.

Brush removal by …

Characteristics Of Arginase From The Terebellid Polychaete Pista Pacifica Berkeley, Karen Laurel O'Malley

Dissertations and Theses

Arginase has been found to occur in the tentacles, gut, and body wall of Pista pacifica Berkeley. Partially purified arginase from the intestine has a molecular weight of 200,000, a Km of about 155 mM, an arginase/canavanase ratio of 22, a pH optimum of 10.5, and a temperature optimum of 60°C. In addition, P. pacifica arginase is competitively inhibited by ornithine but is not inhibited by high arginine concentrations, nor by sulfhydryl reagents. The enzyme is not stimulated by exogenous manganese and breaks down into an active subunit under harsh treatment. The subunit has a Km of about 118 mM …

Growth Of Selenastrum Capricornutum Printz In Natural Waters Treated With Copper Sulfate, Gerald Eugene Schulz

Dissertations and Theses

The green alga, Selenastrum capricornutum Printz, was used in an algal bioassay to determine the toxic properties of copper in various natural lake waters of Oregon. Lake water was collected and brought back to the laboratory where it was treated with various copper concentrations and inoculated with a cell suspension of the test alga. Growth of the alga was determined by direct cell counts. The copper ion activity, pH, and absorbance of the test cultures were also determined. The growth of the alga was found to depend upon the water tested and also upon the copper concentration used.

Time Of Mating And Incidence Of Conception And Implantation In The Post Partum Lactating Female Mouse, Paul A. Walter

Morehead State Theses and Dissertations

A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology By Paul A. Walter on July 23, 1973.

Physiological Comparison Of Plaque-Producing And Non-Plaque-Producing Streptococci With Emphasis On Mannitol Utilization, Brenda Castle

Morehead State Theses and Dissertations

A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by Brenda Castle on July 19, 1973.

A Study Of Mercurials In The Elephant Butte Reservoir Ecosystem, John D. Garcia

Biology ETDs

Analyses of samples for mercury from Elephant Butte Lake collections were made by a flameless atomic absorption procedure. Mercury levels are expressed on a wet weight basis for animal tissues and on a dry weight basis for other materials. Analyses revealed mean ppb mercury concentrations of 0.027 in water, 57 in bottom sediments, 109 in phytoplankton, 277 in attached algae and bryophytes, 95 in plant debris, 69 in zooplankton, 90 in crayfish muscle, 26 in visceral mass of mussels, 97 in muscle of nonpredaceous fish, 125 in muscle of small predaceous fish, 253 in muscle of large predaceous fish, and …

Possible Avian Influences In The Distribution Of Dwarf Mistletoe, Paul James Zilka

Dissertations and Theses

The goal of this investigation was to determine the potential of birds as vectors for the movement of dwarf mistletoe seeds and the means by which such movement could occur. Birds would greatly speed the rate at which these parasites move horizontally or vertically through the forest. Five areas in Oregon, heavily infected by six species of Arceuthobium were studied. Observations of avian behavior point to 13 species whose general behavior make them potential vectors in the distribution of these parasites. More specifically, the roosting and subsequent bathing behavior of most forest birds proves a very important means of potential …

Effects Of Hypothyroidism In Mice Infected With Schistosoma Japonicum Katsurada, 1904, Venus Ee-Siriporn

Loma Linda University Electronic Theses, Dissertations & Projects

Section I:

In order to determine the effects of propylthiouracil-induced hypothyroidism on the Formosan strain of Schistosoma japonicum in mice, one group of mice (NON-PTU) was maintained on Purina Lab Chow meal only; the other group of mice (PTU) was fed a goiterogenic diet of 0.2% propylthiouracil in Purina Lab Chow meal. The mice in both groups were percutaneously exposed to 60 to 72 cercariae. The mice were perfused for schistosomes after an infection period of two months. It was found that the number of worms recovered was not significantly different between the two groups of mice. PTU mice weighed …

Production Of Iodinated Compounds And The Effect On Strobilation In Aurelia Aurita, William J. Welch

Morehead State Theses and Dissertations

A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by William J. Welch on May 2, 1973.

Mercury Levels In Lake Powell, Arizona-Utah, Donald R. Standiford

Biology ETDs

Flameless atomic absorption analysis of samples from Lake Powell yielded mercury in mean parts per billion of 0.01 in lake water, 30 in bottom sediments, 10 in shoreline substrate, 34 in plant leaves, 145 in plant debris, 28 in algae, 10 in crayfish, and 232 in fish muscle. Concentrations are expressed on a wet-weight basis for animals, all other samples are on a dry-weight basis. In bottom sediments mercury levels were higher in sediments with higher organic content and finer texture. The mercury content of plant leaves was higher than that of stems and roots. Lake­transported plant debris had higher …

Effects Of Tubal Ligation And Salpingectomy On Pregnancy, Ottis Murphy Lane

Morehead State Theses and Dissertations

A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by Ottis Murphy Lane May 1, 1973.

Control Of Rat Testicular Monoamine Oxidase Activity: Age, Seasonality, Melatonin, Hcg, Fsh, Starvation And Irradiation, Ronald Lee Urry

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A number of investigations were undertaken to determine what factors control testicular MAO activity. Activity was high in neonatal rats (19 g - body weight), showed a reduced activity at 53 g, was increased at 145-235 g and showed a progressively reduced activity at 415 g, 482 g and 650 g. Hypophysectomy of immature male rats at 3 weeks of age, or mature rats at 10 weeks of age, significantly reduced testicular weight and total MAO activity as calculated on a per animal basis. The specific activity of the enzyme, as expressed on a per mg of tissue basis, was …

Morphological And Ecological Relationships Of Etheostoma Caeruleum And Etheostoma Spectabile In West Central Indiana, Dennis E. Clark

All-Inclusive List of Electronic Theses and Dissertations

Etheostoma caeruleum Storer and Jii. spectabile (Agassiz) are closely related members of the family Percidae, subfamily Percinae, tribe Etheostomatinae. This group, consisting mostly of small, brilliantly colored darters, has been partially characterized by Collett ( 1963). Several papers have been published dealing with the biology of these two species. One or both species have been described by Storer (1845), Agassiz (1854), Reeves (1907, but see Trautman, 1930), Trautman (1930, 1957) Knapp (unpublished Ph.D. dissertation), Distler (1968), and others. Trautman (1930, 1957) Gerking (1945), and Hubbs and Lagler (1947) reported that h caeruleum lives in larger and faster streams, whereas JL_ …

Changes In The (Na+ K+) - Dependent Atpase Activity In Gills Of The Euryhaline Teleost, Fundulus Heteroclitus, Upon Adaptation To Freshwater And Salt Water As Determined By Specific Activities And 3h - Ouabain Binding Sites, Mary Elizabeth Gilman

Master's Theses

Previous attempts to measure the (Na⁺+K⁺) - dependent ATPase in gills of euryhaline teleosts have yielded controversial results. In this study both the (Na⁺+K⁺) - dependent ATPase activity and the number of JH - ouabain binding sites, representing the number of ATPase molecules, were measured in gill tissue preparations of the killifish, Fundulus heteroclitus. The (Na⁺+K⁺) dependent ATPase activity and ouabain binding sites were greater in gills of fish fully adapted to freshwater than in those adapted to salinities of 17 ppt or 24 ppt. On the other …

Life Cycle, Additions To Biology, And New Hosts Of Apophallus Donicus (Trematoda: Heterophyidae) In Oregon, Delbert Niemi

Dissertations and Theses

Apophallus donicus is examined, its life cycle is described, and certain additions are made to its biology.

It is thought, but not proven, that eggs are eaten by the first intermediate host, the local stream snail Flumenicola virens, and the miracidia escape internally. Mother and daughter rediae stages result, the later producing cercariae which are shed into the water. After burrowing just beneath the skin in suckers (Catostomus macrocheilus Girard), rainbow trout (Salmo gairdneri Richardson), coho salmon (Oncorhynchus kisutch (Walbaum)), squawfish (Ptychocheilus oregonensis Richardson), blackside dace (Rhinichthys osculus nubilus (Girard)), redside shiners (Richardsonius …

Regulation Of Rabbit Testicular Capsular Motility: Prostaglandins, Sex Steroids, And Sympathomimetic Agents, Rod R. Seeley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Smooth-muscle active compounds were extracted from rat and rabbit testicular homogenates, and from bathing media of rabbit testicular capsular preparations and were tentatively characterized as prostaglandins. The endogenous prostaglandins were responsible for spontaneous testicular capsular contractions in vitro, but were not solely responsible for spontaneous testicular capsular motility in vivo. In this respect, significantly greater concentrations of prostaglandins were extracted from bathing media from spontaneously contracting capsules in vitro than from inactive capsules in vitro or spontaneously contracting capsules in vivo. No significant difference was observed in the amount of prostaglandin extracted from the bathing media of …

Agonistic Behavior And Dominance In Townsend's Chipmunks (Eutamias Townsendii), Paul Evan Sherman

Dissertations and Theses

Agonistic behavior and dominance are described for captive Townsend's chipmunks (Eutamias townsendii). A total of 10,739 encounters was recorded; 6441 (59.9%) were agonistic. Chases (58.5%) and displacements (30.8%) were the predominant agonistic behaviors; threats (6.8%) and fights (4.l%) were relatively rare.

Stable, non-triangular hierarchies were rapidly established in 11 of the 12 groups of chipmunks observed; the presence of individuals of equal rank in some groups precluded strict linearity. Dominance positions did not change within a group, but reversals in rank and changes from equal to dominant-subordinate relationships occurred when the membership of groups was changed. One hierarchy …

Cytogenetic Effects Of Vitavax Fungicide On Secale Cereale On Allium Cepa, Jack Ernest Staub

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The effects of Vitavax fungicide (2,3-dihydro-5-carboxanilido-6-methyl-1,4-oxathiin) on meiotic chromosomes of rye (Secale cereale) and mitotic chromosomes of onion (Allium cepa) and rye were observed.

The principal aberrations recorded in pollen mother cells of rye were: 1-4 univalents at metaphase I; sticky bridges at telophase I; and micronuclei and misshapen nuclei at the quartet stage.

The principal aberrations recorded in root tip mitoses in onion and rye were: chromosome fragmentation, disintegration, clumping, aggregation and inhibition of mitosis.

All meiotic phases were significantly affected by 1,000, 5,000,10,000, 33,300, 66,600 ppm Vitavax at the 48, 72, and 96 hour …

Incorporation Of Protoporphyrin Ix Into Chlorophyll A And Purification And Properties Of (-) S-Adenosyl-L-Methionine-Magnesium Protoporphyrin Ix Methyltransferase, Jii Shieh

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Experiments on the incorporation of ¹⁴C-protoporphyrin IX into chlorophyll indicate that ferrous iron may be involved in reactions between protoporphyrin IX and chlorophyll. Experiments using both health and chlorotic tobacco tissue for incorporation studies show that incorporation of protoporphyrin IX into chlorophyll was activated by Fe²⁺.

S-adenosylmethionine-magnesium protoporphyrin IX methyltransferase (E.C.2.1.1.11) which catalyzes the reaction between S-adenosylmethionine and Mg protoporphyrin IX to form S-adenosylhomocysteine and Mg protoporphyrin IX monomethyl ester was demonstrated in barley seedlings. Methyltransferase was found principally in whole chloroplasts and fractions containing mitochondria were disintegrated chloroplasts. Use of detergent Tween 80, precipitation with protamine …

The Effects Of Water Extracts From Juglans Nigra L. On The Germination Of Native Deciduous Tree Species, Orman W. Conrad Jr.

Morehead State Theses and Dissertations

A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by Orman W. Conrad, Jr. on April 30, 1973.

The Effects Of Chlordane On Pregnant Mice And Their Offspring, Timothy W. Leonard

Morehead State Theses and Dissertations

A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by Timothy W. Leonard on April 27, 1973.

Ua77/1 Western Alumnus, Vol. 42, No. 3, Wku Alumni Association

WKU Administration Documents

WKU alumni magazine. Features the following articles:

• Corts, Paul. Western's Honors Program Forges Ahead
• Gray, David. Students Still Work Their Way
• Mefford, David & Roy Reynolds. Reaching Out for the Good Student
• Lawrence, Fred. Nick Rose All American
• Yeager, Randolph. A Westerner Remembers Harry Truman
• Scarborough, Clarice. Western Goes to Mexico
• Dillard, Gary & Rudolph Prins. Western at Tech Aqua
• Lawrence, Fred. Student Teaching - a la Guatemala
• Corts, Paul. Theatre Study Goes British
• Thompson, Kelly. The Most Unforgettable Person I Have Ever Known . . . Henry Cherry
• Commonwealth in a Capsule - Kentucky Building
• Adams, Ronald. Teacher Evaluation …

The Nature Of Miniature Melanocytes In Murine Epidermis, John Thomas Earnhardt

Master's Theses

In the epidermis of PET/Wmr mice the population of melanocytes reaches a peak and begins to decline during the first postnatal week, and has disappeared within four weeks. During this period a small number of weakly DOPA reactive miniature melanocytes are seen dispersed among the generally large, highly DOPA reactive melano­cytes typical of the animal. These miniature melanocytes appear early, are among the last to disappear, and their population remains relatively constant against the drastically changing population of typical melanocytes. In attempts to determine the nature of the miniature melanocytes, heterologous grafting was employed whereby the melanocytes were subjected to …

Effect Of Gibberellic Acid And Actinomycin D On The Formation And Distribution Of Rough Endoplasmic Reticulum In Barley Aleurone Cells, Eugene L. Vigil, Manfred Ruddat

Biological Sciences Faculty Research and Publications

Analysis of structural changes in barley aleurone cells during germination or following incubation of isolated layers in gibberellic acid with or without actinomycin D revealed extensive development of rough endoplasmic reticulum. Following the assembly of stacked rough endoplasmic reticulum, vesiculation occurred mainly in basal regions of the cell, resulting in a polar distribution of rough endoplasmic reticulum vesicles. It is postulated that these vesicles are involved in protein secretion, because smooth vesicles, derived from the rough endoplasmic reticulum, apparently become appressed to the plasma membrane. The increased α-amylase in the ambient medium and in cell homogenates correlated directly with formation …

Some Effects Of The Bite Of The Short-Tailed Shrew, Blarina Brevicauda, Howard F. Krosch

Journal of the Minnesota Academy of Science

Folklore, especially in Europe, has long maintained that shrews are extremely poisonous. Zoologists have discounted this belief as superstition until recently, when it was learned that at least two species of shrews - the European water shrew, Neomys fodiens, and the American short-tailed shrew, Blarina brevicauda - produce a toxin in their sub-maxillary glands.