Life Sciences Commons^™

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 …

Separation Of The Membrane Associated L-Malate And Reduced Nicotinamide Adenine Dinucleotide Dehydrogenases Of Micrococcus Lysodeikticus, Steven S. Dills

Masters Theses

No abstract provided.

Relationships Between Radiophosphorus Accumulation By Bacteria, Algae, And Tubificid Worms In Laboratory Food Chains, Warren L. Stromberg

Masters Theses

No abstract provided.

The Effect Of Thermoradiation On Bacterial Spores In Wet And Dry Systems, Thomas J. David

Biology ETDs

Spores of Bacillus subtilis var. niger and Clostridium sporogenes were exposed to heat and radiation, separately, and in simultaneous combination. The spores were subjected to treatment under two sets of conditions. Wet spores were suspended in water during treatment, while spores in the dry state were treated in air which had a relative humidity of about 30% at room temperature. Treatment with ionizing radiation at room temperature was found to be more effective in the dry than the wet state, in contrast to most theories and some research in that area. Bacillus subtilis var. niger was more resistant to heat …

An Investigation Of The Melanistic Phase Of The Western Fox Squirrel (Sciurus Niger Rufiventer) In Eastern Nebraska And Western Iowa, Edward W. Lueninghoener

Student Work

The largest member of the tree dwelling North American squirrels is the Fox Squirrel (Sciurus niger Linnaeus). This species inhabits the eastern half of the contiguous United States. Its normal habitat is open woodland though the Fox Squirrel along with the Grey Squirrel (Sciurus carolinensis Linnaeus) may be found in some thickly wooded areas. The Fox Squirrel has extended its range farther west in response to the large number of trees that have been planted on the former prairie of the great plains (Yeager, 1959). The range of the Fox Squirrel is plotted in Appendix I, Figure 1 after Hal …

Life History Consequences Of Natural Selection: Coles Result Revisited', Eric Charnov, William Schaffer

Biology Faculty & Staff Publications

No abstract provided.

Lead Content Of Hair Of Urban And Rural Populations Of Small Animals, 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.

The Effects Of Atropine On The Growth And Respiration Of Two Species Of Bacteria Normally Inhabiting The Human Gastro-Intestinal System, Mary M. Ramos

Theses & Dissertations

It is the purpose of this study to determine whether the drug atropine has an effect on bacteria found normally inhabiting the human body, most specifically the gastrointestinal system. Atropine is one of the oldest drugs in medicine. It is derived from the roots and leaves of solanaceous plants such as henbane and Jimson weed. Atropine is often termed a belladonna alkaloid because it can also be found in the deadly nightshade plant, Atropa belladonna. Atropine is a highly competitive antagonist of acetylcholine at receptor sites in smooth muscles, cardiac muscle, and various glandular cells (5). Therefore, its effects are …

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.

The Effectiveness Of The Nitrate Ion Selective Electrode As A Qualitative Method For Low Levels Of Nitrate, Linda Blaine

Masters Theses & Specialist Projects

The nitrate ion specific electrode has been used to measure nitrate concentration in plant tissue. Nitrate concentration, as nitrate ion activity, can be read rather simply in an aqueous extract of the plant tissue in somewhat the sane manner as a pH measurement would be taken, In contract to more time consuming chemical methods.

A previous study of nitrate concentrations in barley treated with the growth retardant chemical, B-Nine (succinic acid 2, 2 dimethylhydrazide), had been carried out by the colorimetric method of Wooley, Hicks and Hageman. The study indicated lower nitrate concentrations in treated plants, as compared with untreated …

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.

Growth Studies On The Shigellae, Margaret Jane Gillespie

Biology ETDs

The growth of 20 strains of Shigella, representing the four species, was evaluated by the inoculation of pure cultures of single strains on Tryptic Soy agar (TSA) and four selective plating media. Colony counts of 18 strains were highest on TSA. While recovery on MacConkey (MAC) and Xylose Lysine Desoxycholate (XLD) agars was intermediate, very low counts occurred on Desoxycholate Citrate (DCA) and Salmonella-Shigella (SS) agars. Six strains plated on MAC and four strains plated on XLD gave colony counts 10% lower than TSA. With DCA and SS 15 and 16 strains, respectively, gave colony counts 50% lower than TSA. …

Temperature And Photoperiod Induction Of Cold-Hardiness In The Scorpion Paruroctonus Aquilonalis., Wayne A. Riddle

Biology ETDs

In order to investigate the nature of cold-hardiness in scorpions, adult Paruroctonus aquilonalis collected in August, 1972 near Albuquerque were exposed to ambient conditions of photoperiod and temperature, or to one of several artificial photoperiod-temperature regimes. Four specific laboratory regimes were established to describe the effect of photoperiod duration and temperature on supercooling point level. Conditions of these regimes were (i) constant photoperiod-constant temperature, (ii) constant photoperiod-decreasing temperature, (iii) decreasing photoperiod-constant temperature and (iv) decreasing photoperiod-decreasing temperature. Experimental conditions were either kept constant, or were decreased in increments from simulated summer conditions (26 C and 13-hr 15-min photoperiod) through the …

Inventory Of Lake Studies In Maine, Charles F. Wallace Jr., James M. Strunk

Maine Collection

Inventory of Lake Studies in Maine

By Charles F. Wallace, Jr. and James M. Strunk

State Planning Office, Water Resources Planning Division, July 1973.

"Printed under Appropriation Number 4248.5 and financially assisted by planning grants from the United States Water Resources Council Title III funds."

Contents: Introduction / Investigating Agencies / Federal Agencies / State Agencies / Regional Planning Commissions and Economic Development Districts / Maine Colleges and Universities / Private / Other Private / Other / Appendices

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 …

Osmoregulatory Adaptations Of The Spiny Softshell Turtle, Trionyx Spiniferus, From Brackish And Fresh Waters, Michael E. Seidel

Biology ETDs

Two geographically separated populations of the Texas spiny softshell turtle, Trionyx spiniferus emoryi, were collected in New Mexico and their osmoregulation and body fluid compositions were studied. One population inhabits fresh water (0.09% saline) and the other inhabits brackish water (0.79% saline). Turtles were maintained in laboratory water analogous to their field environments and then acclimated to tap water or 0.7% saline. Weight changes and urine flow were measured. Blood and urine samples were obtained from turtles in each aqueous environment and analyzed for sodium, potassium, calcium, magnesium, urea, and protein. Osmotic pressure of these samples was also measured.

The …

Intra- And Interspecific Aggression In House Finches And House Sparrows, Ronald L. Kalinoski

Biology ETDs

Aggression in House Finches and House Sparrows was studied at an outdoor feeder in winter and in indoor cages. In the wild, frequencies of encounters conformed to patterns of daily and seasonal feeding activity. House Sparrows of both sexes were dominant to House Finches, especially in cages. House Finches were more aggressive intra- than interspecifically. House Sparrows showed equal proportions of aggression toward finches and each other. House Finches maintained stable peck-right dominance hierarchies. House Sparrows exhibited extreme lability in dominance relationships, with no emergent structure. Interspecific aggression in these species was related to violations of individual distance at common …

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.

The Flora Of Mount Sedgwick And Vicinity, Nancy L. Riffle

Biology ETDs

The purpose of this study was to determine the composition of the flora around Mount Sedgwick in the Zuni Mountains, Valencia County, New Mexico. More than 1100 specimens were collected during the spring and summer of 1968 and 1969. These specimens were identified to species or lower taxa, and a total of 353 species in 61 families were represented. The limitations of altitude, and the presence of permanent moisture largely determined the composition of the flora in the various study areas. Habitats studied included a steep dry canyon, ponderosa pine forest, two springs and meadows, a permanent pond and stream, …

Effects Of Temperature And Ph On The Growth And Composition Of The Sporophyte And Gametophyte Generations Of Allomyces Arbusculus Butler (1911), Lawrence Wayne Lenz

Master's Theses

Pure cultures of the sporophyte and gametophyte generations of Allomyces arbusculus Butler (1911) were grown under varied conditions of temperature and pH. On solid media the gametophyte did not grow at 10 and 15 C; the sporophyte began slow growth after a long lag period at 15 C. There were no significant differences in growth between the sporophyte and gametophyte at 20 and 25 C. Increasing colony areas occurred for both generations at temperatures between 30 and 40 C, with the largest amount of growth for either generation at 35 C.

Colonies grown in broth media at various pH levels …

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 …

Predicting Primary Productivity In Westhampton Lake, Richmond, Virginia., Gary Newton Moore

Master's Theses

Several predictive photosynthetic models were tested using light, temperature, nutrient, chlorophyll, and primary productivity data collected from Westhampton Lake, Richmond, Virginia from February-September, 1972. A simple linear model, the Kendall rank correlation coefficient, was used to relate photosynthesis to individual meteorological, physical, chemical, and biological factors. iii Of the parameters measured, only the daily maximum photosynthetic efficiency ((P/chl) max ) was significantly correlated with photosynthesis. Five multiple factor (non-linear) models were tested. In the best fitting model, primary productivity was a function of the maximum observed ratio of photosynthesis/chlorophyll concentration, light intensity, temperature, nutrient concentrations, and chlorophyll concentration. The Pearson …

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.

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 …

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 …

A Phytosociological Study Of A Relict Hardwood Forest In Barren County, Kentucky, Christine Bougher

Masters Theses & Specialist Projects

Although general information is readily available concerning the structure and composition of deciduous forests, especially in the eastern part of the United States, there seems to be little specific information concerning forest composition in the Commonwealth of Kentucky. The lack of phytosociological studies prior to the development of the land, and the extent of land development in Kentucky, has led to a paucity of information regarding the natural forest vegetation of the Commonwealth. To the author's knowledge, there are few publications dealing with the vegetational composition of relict or virgin forests in Kentucky. It is apparent that there is a …