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Vegetation, Pollen Rain, And Pollen Preservation, Sangre De Cristo Mountains, New Mexico, Hobart N. Dixon

Biology ETDs

In this investigation I shall attempt to relate pollen percentages of recent sediments to relative phytosociological measures of the vegetation in each of six southwestern vegetational types. The establishment of such relationships will enable more accurate reconstructions of past plant associations and climate from studies of pollen profiles

Age And Growth Of The Longfin Dace, Agosia Chrysogaster Girard, John Kristian Winther

Biology ETDs

This is the first study to determine the age and growth of the longfin dace, Agosia chrsogaster Girard. During March, June, and October, 1961, 8,568 dace were collected from the Mimbres, San Francisco River and one of the Mimbres River indicate that Agosia lives just over one year. Estimates of age based on the examination of scales from a stratified subsample of 255 fish appear to agree with length-frequency estimates. The position of a check near the outer margin of scales established the formation of a winter check in March. Two or more checks appear to be formed each year. …

The Flora Of Mount Taylor, Neal L. Osborn

Biology ETDs

The writer has attempted to determine what species occur on Mount Taylor. This information should reveal any deviations from the expected floristic pattern as well as general distributional trends. If deviations are detected, the writer will attempt to explain them in the general discussion. Most of the answers and conclusions are of a speculative nature because of insufficient meteorologic information and comparative data from other regions.

A Determination Of Stelar Patterns In Various Root Divisions Of Certain Angiosperms, Serafin Ramon

Biology ETDs

Root systems from ten species of desert angiosperms were collected and examined histologically to determine the xylem patterns of the primary, secondary, and tertiary roots. The plants used in the study were Cleome serrulata Push, Croton texenis (Klotzch) Muell. Arg., Franseria acanthicarpa (Hook.) Coville, Gutierrezia microphala (D.C.) Gray, Mentzelia albicaulis Dougl., Kochia scoparia (L.), Ratibida columnaris (Sims) D. Don, Salsola kali (S. pestifer A. Nels.), Tribulus terrestris L., and Berbana macdougalii Heller.

An Annotated Checklist Of The Bats Of Bernalillo County, New Mexico, Frances Veronica Sheppard

Biology ETDs

In 1960-61, Bernalillo County, New Mexico, was surveyed for bats. The purpose of this survey was to determine what kinds of bats occur in the county and to collect natural history data on these bats. Bats were obtained by cave and roost searching and by mist-netting and shooting over ponds, streams, and tanks. For all bats collected, standard museum study skins and skulls as well as alcoholic carcasses are preserved in the Museum of Southwestern Biology at the University of New Mexico.

Rapid Identification Of Streptococcal Infections Using Fluorescent Antibody Techniques, James H. Meadows

Biology ETDs

The use of fluorescent microscopy coupled with immunological techniques offer new methods for the demonstration of antigen-antibody reactions. The adaptation of these techniques to grouping of beta hemolytic streptococci makes feasible their further adaptation toward identification of group A streptococci in clinical material. Commercially available labeled antibodies against group A beta hemolytic streptococci were obtained for use in this study. A method for the determination of labeled antisera specificity is proposed and a technique for absorbing out any heterologous reacting antibody is described. Using this commercial labeled antisera, subsequent to specificity studies plus absorption if necessary, adaptations of basic fluorescent …

The Effects Of Radium On Certain Goldfish Blood Constituents And Organs, D. Wayne Linn

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Background radioactivity from radium has long existed in ground and surface waters of the United States, but in the last 15 years radium has become a consequential unnatural contaminant of waters (Coulomb, 1955; Rone, 1952; Schlundt, 1910; Scott and Barker, 1956; Scott, 1961; and Tsivoglou et al., 1958). The onset of the atomic age initiated the increased processing of uranium ore for its uranium content. Radium is a daughter product and a by-product of uranium ore and its purification (Glasstone, 1958; and Tsivoglou et al., 1958). The uranium refinery wastes are released into streams in which all forms of aquatic …

Effect Of Sweeteners On The Acceptability Of Selected Processed Fruits, Richard Lee Mclaughlin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In 1959 Abbott Laboratories estimated (3) that every year 60 million persons go on controlled diets. Of these about 34 million have serious obesity problems, 3 million are diabetics and the rest have disorders that demand strict dietary measures.

Synthetic Investigations In Steroids, Harold R. Gollberg

Theses

The term hormone may be define as any substance normally produced and secreted by cells in one part of the body and carried by the blood stream to some other part where it is effective in low concentrations in regulating and co-ordinating the activities of the cells. However, hormones cannot be defined as belonging to any particular class of chemicals. All hormones are organic substances, but some are proteins while others are relatively simpler chemical compounds, such as amino acids and steroids. The hormones secreted by the pituitary gland are proteins, while those of the thyroid are amino acids. Others, …

Selected Insecticides In The Control Of Invertebrates Possibly Associated With Avian Botulism, J. Larry Haddock

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Avian botulism or ''western duck sickness" has long been a major problem on duck marshes in the western part of the United States. This has been demonstrated to result from the ingestion of products of metabolism of bacterial cells of Clostridium botulinum type C. These products when ingested by waterfowl act as neurotoxins (Coburn, 1942). Studies have shown that many animal tissues are readily utilized as culture media by Cl. botulinum type C (Bell et al., 1955).

Since 1955 investigations have indicated a close relation between the occurrence of avian botulism and invertebrate population levels. It is thought that when …

Factors Affecting The Waterfowl Hunter Utilization And The Waterfowl Kill At The Bear River Migratory Bird Refuge, 1960-61, Stephen V. Goddard

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In 1960 there were 1,955, 000 waterfowl hunters in the United States. These hunters spent $89,431, 000 (an average of $45.74 per individual) and 15,158, 000 hunter days in the field. The hunting population will increase 35 percent by 1975 (Anonymous, 1960).

The large increase in hunters will bring a proportional increase in the demand for places to hunt. Many states face the problem of providing enough public hunting for such an army of sportsmen. Studies by Kozlik (1958) in California, Gordinier (1957) and Friley (1959) in Michigan, and Bednarik (1957, 1961) in Ohio point out some of the problems …

Food Availability And Selective Utilization By Juvenile Mallards (Anas Platyrhynchos Platyrhynchos L.) On The Bear River Migratory Bird Refuge, Utah, Nicholas J. Chura

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This investigation was devoted to a study of food availability and the selective utilization by juvenile mallards (Anas platyrhynchos platyrhynchos L.) from hatching through the flight stage. Such information furnishes basic knowledge which may be used for determining the effects of chemical poisons on these organisms, how breeding ground habitats could be manipulated for their most efficient use by duckling species, what nutrients occur in natural duckling foods, and the digestibility of these items. The Bear River Migratory Bird Refuge, Utah, was used as the study area during the waterfowl breeding seasons of 1959, 1960, and 1961. Mallard ducklings …

Ecology Of Spring Fed Salt-Marshes, Eric George Bolen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Any marsh is a distinctive land-form of varied interest. To the agriculturist it is wasteland to be reclaimed; to the naturalist, a habitat of aesthetic value. To the ecologist, however, a marsh represents a complexity of vegetation under the influences of many and often inseparable factors. It becomes a place of challenging study.

Influence Of Age On Milk Production Of Holstein Cows In Utah, Marvin R. Green

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Production of dairy cows is influenced by many factors, among which are: genetics, nutrition, management, disease and age. Most of these factors can be modified to maintain a high level of production. Age, however, is beyond the influence of mankind; therefore, it is important to understand the effect of age on milk and butter-fat production.

A Study Of A Bacterial Cause Of The Late Gas Defect In Cheddar Cheese, Rulon A. Chappell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

More of the manufacturing milk purchased from Utah's dairy farms is used for the production of cheese than for any other product. Approximately eleven and one-half million pounds of cheese were produced in Utah in 1959, of which more than half was cheddar. Many problems are encountered in the production of A-grade cheddar cheese. One of the most important causes of the reduction in grade is the late gas defect which accounts for about 50 percent of the cheese grading below A-grade. To increase the percentage of A-grade cheddar cheese in Utah, the late gas problem should be solved. The …

An Evaluation Of Antibiotics Upon Selected Dairy Organisms, Roy Brog

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was designed to answer a three-fold purpose. Primarily, it has endeavored to measure the inhibitory effect of three antibiotics (potassium pencillin, dihydrostreptomycin, and oxytetracycline) on lactic acid producing organisms. The lactic acid-producing organisms include Streptococcus lactis, Streptococcus thermophilis, and Lactobacillus bulgaricus.

The determination of an effective dose of a given antibiotic which will inhibit 50 percent of the lactic acid-producing organism (E.D.₅₀) will be established. A 50 percent cut in acid development will certainly lead to an inferior product.

The secondary purpose has related to the detection of inhibitory substances (antibiotics) in milk. What is …

Cuterebra (Diptera: Cuterebridae) Of Utah And The Neighboring States, Charles L. Graham

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Cuterebra are robust flies, which in flight resemble large black bees. Little is known about the bionomics of most of the species included in this genus. Nearly all members of this group parasitize rodents and lagomorphs. Some species have a wide host range, others seem to be specific or semi-specific to a single host. Accidental parasitism of animals other than specific host animals does occur. In such cases the larvae or the host usually die before the larvae can mature. There is a wide variation in the effect of of the parasite on its host. If the parasite is found …

Biochemical Studies On The Effect Of Fluoride On Higher Plants, Shang-Fa Yang

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Fluoride occurs naturally in plants, but its presence has attracted attention primarily in certain industrial areas where concentrations are elevated above normal by accumulation from the atmosphere. Certain plant species have been observed to be injured as a result of accumulation of excessive fluoride from the atmosphere. The general symptoms of fluoride injury are necrotic lesions and burning which appear first in the leaf tips and margins.

The Effect Of Feeding Fluoride On Some Enzymes Of Bovine Tissues, Prasertsri Sitachitt

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Fluorides are usually found in nature as constituents of soils, water, and the tissues of animals. Fluorite or fluorspar (CaF₂), cryolite (Na₃AlF₆), apatite (3 Ca₃ (PO₄)₂ CaF₂) and sedimentary phosphate rocks are among the principle minerals containing fluorides found in nature. Traces of fluorides also occur in domestic water supplies in nature and also by induction in vegetation and animal feeds. From 0.5 ppm to 1.5 ppm of fluorides in drinking water is the range found to be beneficial in reducing the incidence of tooth decay in man. …

A Comparison Of Cock Pheasant Harvests Among Areas Having Different Hunting Pressures, Cache County, Utah, James C. Bartonek

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Parsons (1953) found Utah's posted hunting unit system regulated hunting pressures over much of the state's pheasant range. He found inequalities of hunting pressure among the posted hunting units because of their individualistic methods used to determine the number of hunting permits to be sold. Utah State Department of Fish and Game personnel recommend the number of permits to be sold by the hunting unit; but often, the hunting unit officers use the desired level of hunting pressure, size of cock harvest, and revenue from permit sales as decisive factors. By regulating hunting pressure on their own lands the posted …

A Study Of Body Water In Active And Hibernating Ground Squirrels, Citellus Lateralis Lateralis And Citellus Spilosoma Marginatus, Lawrence R. Klinestiver

Biology ETDs

The present studies were designed to evaluate dehydration as a factor in determining duration of hibernation. Skin temperatures were utilized to indicate the condition of hibernation. Two species of animals, Citellus lateralis and Citellus spilosoma, from two different ecological areas, were studied for the purpose of determining whether tolerance for deprivation of water would indicate changes in water content of tissues during hibernation. If hibernation is limited by dehydration of body tissues, then animals with a greater tolerance for dehydration may hibernate for longer periods. The following experiments were designed to evaluate the effects of dehydration on active and …

The Seventy-Fourth Session Of The Iowa Academy Of Science And The Thirtieth Convention Of The Iowa Junior Academy Of Science, April 13-14, 1962, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.

Texas And Technology, Martin Goland

Journal of the Graduate Research Center

It is a pleasure to have this opportunity to talk with you about the Texas scene and its stake in science and technology. The force of science in modern society is a compelling one, reaching into virtually every aspect of our lives, and the future health of our state and our nation hinges in large measure on the extent to which we plan wisely to have technology serve our ends, rather than control our destiny.

Nasal Mites Of The Mourning Dove, Andrew B. Couch Jr., B. Grabstald, Kenneth J. Kimbrough

Journal of the Graduate Research Center

Crossley (1952) described a species of nasal mite, Neonyssus zenaidurae, from the mourning dove (Zenaidura macroura) collected in Texas and Georgia. In his study mites were obtained from 10 of 19 doves examined. Owen (1958) found this species of mite in mourning doves collected in Alabama. He reported an infestation of 4 out of 10 birds (average: 1.5 mites per dove), for one county; and 3 of 10 birds (average: 2.6 mites per dove) for another county. Our method of recovery was similar to that described by Owen. The nasal cavities were separated sagitally, with scissors, from the tip of …

A Search For Trypanosomes In Mourning Doves, Andrew B. Couch Jr., B. Grabstald, Kenneth J. Kimbrough

Journal of the Graduate Research Center

Diamond (1954) described a technique for the detection of trypanosomes in geese. We used a similar technique in the search for trypanosomes in each of 64 mourning doves (Zenaidura macroura) collected on September 1-2, 1960, 4 miles west of Celina, Denton County, Texas. The condylar surfaces of the femur, sterilized with alcohol, were removed with sterile scissors, and the marrow, forced from the femur with a hemostat, was collected with a sterile nichrome wire. The inoculum was incubated in the blood agar, broth overlay medium described by Diamond. One sample of the culture was stained on the 6th day of …

A Survey Of Parasitism In A Population Of Pigeons, Robert Flynn Jochen

Master's Theses

Numerous papers relative to parasites in pigeons can be found in the literature, but information concerning parasitic infections in pigeons of Virginia is scant, and no survey of parasitism has been made. Furthermore, no one survey or parasitism in pigeons of North America has included the incidence of both ectoparasites and endoparasites. Information relative to the incidence of individual parasites or groups of parasites, however, is available in recent literature, as well as information concerning isolated cases of parasitism

The present study was undertaken to (1) determine the nature and extent of parasitism in a population of pigeons in Henrico …

New Staff Members

Henry Ford Hospital Medical Journal

No abstract provided.

A Soil And Vegetation Inventory And Analysis Of Three Nebraska Sandhills Range Sites, Donald F. Burzlaff

Nebraska Agricultural Experiment Station: Historical Research Bulletins

This study was undertaken to inventory the soils and vegetation of certain areas of the Sandhills and to seek edaphic characteristics that may be the limiting factor in the distribution of various plant species. Information of this nature will permit formulation of more accurate management practices because of a refinement in delineation of range sites.

Abstracts Of Recent Publications Of The Professional Staff Of The Henry Ford Hospital And The Edsel B. Ford Institute For Medical Research

Henry Ford Hospital Medical Journal

No abstract provided.

A Model Of Endocrine Control Of Bone Remodelling, Harold M. Frost

Henry Ford Hospital Medical Journal

No abstract provided.