Digital Commons Network^™

Graves' Disease Following The Occurrence Of Hypothyroidism, A. R. Guansing, D. D. Klink, N. Engbring, Y. Leung, J. Chakravarty, S. Wilson

Henry Ford Hospital Medical Journal

Three patients with hypothyroidism of 15-48 months' duration developed Graves' disease while on thyroid hormone replacement therapy. In one patient, the hyperthyrold phase was preceded by ophthalmopathy and nonsuppresslble 24-hour radioactive iodine uptake (RAIU). Eventually, all had hyperthyrold findings with elevated thyroid hormone levels, high 24-hour RAIU, and a diffuse uniform uptake of RAI by the enlarged thyroid. All subjects had negative antithyroglobulin and antimicrosomal antibody titers. Two had demonstrable long-acting thyroid stimulator (LATS) in their sera. All three were followed for 5-36 months while on propylthiouracil therapy prior to surgery or RAI administration. Both LATS-positive patients underwent bilateral subtotal …

Influence Of Las Vegas Wash Density Current On Nutrient Availability And Phytoplankton Growth In Lake Mead, John R. Baker, Larry J. Paulson

Publications (WR)

Density currents are commonly formed in reservoirs because of temperature or salinity induced density differences between inflowing and receiving waters. Anderson and Pritchard (1951) were among the first to demonstrate this in their investigations of density currents in Lake Mead. They found that the Colorado River formed an underflow in Lake Mead during the winter, an overflow in the spring and an interflow in the summer and fall. Wunderlich and Elder (1973) have since described the hydromechanics of these types of flow patterns, and density currents have been reported for several other large reservoirs (Carmack et al. 1979, Johnson and …

Nutrient Interactions Among Reservoirs On The Colorado River, Larry J. Paulson, John R. Baker

Publications (WR)

Interactions among physical, chemical and biological processes in reservoirs can significantly alter the characteristics of the discharge (Neel 1963, Wright 1967, Hannan 1979) that, in turn, can influence the ecology of the river downstream .(Ward and Stanford 1979). Investigations of the Colorado River, system reveal that reservoir-induced changes in the river can also affect downstream reservoirs. The formation of Lake Powell, in 1963 was accompanied by reductions in suspended sediment and nutrient loading and changes in the seasonal temperature and discharge cycles of the Colorado River. In this paper, we evaluate how these changes have influenced the nutrient and trophic …

Relationship Of Tecate Cypress Distribution To Soil Types, David E. Stottlemyer

Loma Linda University Electronic Theses, Dissertations & Projects

The Tecate Cypress (Cupressus forbesii Jeps.) is a gymnosperm tree of limited distribution. To determine if soil is an influencing factor in its distribution, the soil characteristics of a Tecate Cypress grove in the Santa Ana Mountains of Orange County, California, were compared with soils from neighboring communities and other Tecate Cypress groves. Soil samples were analyzed for texture, saturation percent, pH, and electrical conductivity. Tests were also run for nutrients such as nitrogen, phosphorus, potassium, calcium, magnesium, iron, manganese, copper and zinc.

Results seem to indicate that the Tecate Cypress soils are: 1) significantly more acidic than the soils …

Orthognathic Surgical Expansion Procedure Of The Mandible Of Female Baboon Papio Sp?, Willis L. Schlenker

Loma Linda University Electronic Theses, Dissertations & Projects

Expansion of the maxillae is a well recognized procedure in orthodontics. Little is known about Mandibular Expansion. This project is a pure research of the possibility of expanding the mandible laterally at the symphysis on a baboon.

The symphysis was cut A-P and expanded laterally 11 mm, then held and stabilized with a titanium mesh work screwed to the inferior border of the mandible. The defect area was filled with a bone graft of marrow and cancellous bone fragments taken from the greater trochanter and the crest of the ilium. New bone did fill in the defect and the expansion …

The Effect Of Periapical Inflammation On Cellular Cementum : A Scanning Electron Microscope Study, Gary S. Yonemoto

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this study was to obtain information on the morphologic changes that occur in cellular cementum exposed to periapical inflammation.

Ten single rooted human teeth were collected. There were five specimens of normal cellular cementum and five specimens of diseased cellular cementum, which had been exposed to periapical inflammation. Each specimen was fractured longitudinally through the apical foramen, leaving the organic component intact. The cross-sectional morphology of cellular cementum was then examined using an ARM Model 1000 scanning electron microscope. Energy dispersive x-ray spectrometry was also conducted on samples representative of the two test groups.

A methodology was …

An Ultra-Violet Light Microscopic Study Of The Hydroxylapatite Ceramic-Bone Interface Phenomena, Leonard W. Pierce

Loma Linda University Electronic Theses, Dissertations & Projects

Preparations used in this study were obtained from an investigation which had undertaken the following:

Durapatite, a hydroxylapatite ceramic was implanted in 24 mature Beagle dogs to study its maintenance effect on the alveolar bone of the mandible.

After dividing the dogs into two groups, a fresh socket and a healed socket group, the posterior teeth were removed and alveolectomies were performed. Eight ceramic implants were then placed in the right mandible of each animal in each group. The healed group received the implants five weeks after tooth removal and the fresh socket group received implants immediately after extraction.

The …

Lipoprotein Lipase Inhibitor Removal During Ultrafiltration Of Renal Failure Patients, Alisa Minear

Loma Linda University Electronic Theses, Dissertations & Projects

Plasma samples were obtained from seven hypertriglyceridemic (>150 mg/dl) chronic renal failure patients before and after regular hemodialysis. The effect of the plasma on the lipolytic activity of bovine milk lipoprotein lipase was investigated. The lipoprotein lipase activity, as measured by release of C¹⁴-labeled free fatty acid from triglyceride, was decreased 8-67% when incubated with uremic plasma as compared to the control plasma (44 mg/dl triglyceride). The inhibition noted prior to hemodialysis did not appear to be alleviated by the dialysis but subsequent treatment with an isolated ultrafiltration technique did appear to remove an inhibitory substance as …

The Effect Of Light Intensity On The Incorporation Of Calcium Into The Carbonate Skeleton In Bossiella Orbigniania, Carol D. Logan

Loma Linda University Electronic Theses, Dissertations & Projects

The effect of light intensity on the incorporation of calcium carbonate into the algal skeleton inBossiala orbigniana (Descaisne) Silva (1957) (Corallinaceae) was studied. Calcium-45 labeling of terminal segments under experimental laboratory conditions was used to estimate calcification rate. Plant sections were tested under each of six light intensities ranging between zero (darkness) and 1960 pW^-2cm Calcium incorporation was found to be enhanced in light treatments as compared with dark treatment. Light of intensities ranging from 285 pW cm^-2 to 1960 pW cm^-2gave enhancement effects which were not significantly different from each other. Three alternate …

The Rate Of The Healing Process In Venous Thrombi Produced By A Sclerosing Agent With Special Attention To Endothelial Lining, Kiyoshi Tanaka

Loma Linda University Electronic Theses, Dissertations & Projects

Despite extensive clinical and experimental investigations of venous thrombosis, relatively little is known about the early phases of healing of the venous thrombus. Soon after its discovery heparin has become the most popular agent for the prevention and treatment of venous thrombosis, but there are a number of unanswered questions regarding the most satisfactory treatment for venous thrombosis.

One area of controversy has been the duration of anticoagulation therapy for acute venous thrombosis. If the anticoagulant is discontinued too soon, the thrombus may continue to propagate. Prolonged anticoagulant therapy exposes the patient to the risk of serious hemorrhage. The objective …

The 160-Acre Limitation And Economies Of Size: A Case Study In The Uintah Basin, Thomas C. Hatch

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to analyze the economies of size in farming in the Roosevelt-Myton area of the Uintah Basin and to assess their impact on the financial viability of different size farms. This information will be useful in recommending changes to reclamation law.

Farmer interviews were used to obtain costs of production for 160, 320, 640, and 1280 acre farms. The field data were entered into the Oklahoma State Budget Generator to provide the necessary cost breakdown. This in formation was used to derive a curve approximating the long run average cost curve and to determine the …

Common Use Grazing Studies On Southern Utah Summer Range, Al F. Schlundt

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Two common use grazing trials were conducted during two summer grazing seasons (1978-1979) on a typical shrubby grassland site on the Kolab Terrace, about 20 miles (32 km) southeast of Cedar City, Utah, at an elevation of about 8500 feet (2600 m). Two animal units of ewes with lambs, or cows with calves, or both were stocked in each of six, one-acre (0.39 ha) pastures. A five to one substitution ratio provided two single-species and one mixed (five ewes with lambs and one cow with calf) livestock treatments replicated twice. The pastures were grazed for nine days during which time …

An Agro-Sylvo-Pastoral Approach To Desertification Control And Increased Productivity Of The Sahel, Rober D. Kirmse

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

The southern arid fringe of the Sahara Desert, called the Sahel, is progressively becoming less productive through a systematic deterioration of the environment. Population increases and technological advances have encouraged ecological degradation through man's normal activities for survival. The degradation process has been referred to as desertification, desertization, desert encroachment, and desert creep.

A Comparative Analysis Of Plant Response Parameters : To The Los Angeles Aqueduct Systems In The Mojave Desert, California, Edwin F. Archbold

Loma Linda University Electronic Theses, Dissertations & Projects

A comparative study of the two Los Angeles aqueduct systems was appropriate and feasible because of the 57 year span between construction dates. Although, dealing with complex interactive relationships of a variety of parameters and some unmeasurable aspects, this project attempted to get a closer look at the impacts of man-made constructions in the Mojave Desert.

Land managers and ecologists are particularly interested in answering the questions, how did the Mojave Desert perennial vegetation respond to a utility construction, such as the Los Angeles aqueduct, and what is the intensity of damage to plant cover. The recovery rates for vegetation …

Accumulation Of Formaldehyde And Its Relation To Postmortem Aging Of Non-Gadoid Fish Species, Mohamad A. Al-Kanhal

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Three non-gadoid fish species, trout (Cynoscion regalis), English sole (Paraophyrys vetulus) and Pacific red snapper (Scomber japonicus) have been tested for the recovery of trimethylamine oxide (TMAO), trimethylamine (TMA), dimethylamine (DMA), and formaldehyde (FA) during postmortem storage at 4°C and -5°C. TMAO, TMA, and DMA content was determined by measuring them as the salt derivative of picric acid. FA was determined by using the 3-Methyl-2-Benzothiazolinone hydrazone test.

In muscle tissue of red snapper and English sole, it was clear that initially TMAO decreased during storage at 4°C, while the amounts of TMA, DMA, and …

Pesticide Exposure Studies: Direct And Indirect Detection Of Absorption Of 2,4-D And Pronamide Herbicides In The Guinea Pig And Occupationally Exposed Workers, Ibrahim A.R. Al-Jabery

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A simple high pressure liquid chromatography procedure was used to determine 2,4-D and pronamide exposure in spraymen and their dermal absorption and excretion in guinea pigs.

Results of dermal application of these herbicides to guinea pigs demonstrated a strong correlation between the applied dermal dose and the urinary residue excretion over the dosage range tested. As the dosage was increased, the urinary excretion of residues was also increased. However, the excretion of 2,4-D amine mixture following dermal treatment of guinea pigs was prolonged as compared to that of pronamide.

Residue levels of these compounds were also determined to estimate skin …

Owen's Vertebral Archetype And Evolutionary Genetics: A Platonic Appreciation, Scott F. Gilbert

Biology Faculty Works

No abstract provided.

Population Dynamics Of Small Mammals In Two Plant Communities Of The Merritt Island National Wildlife Refuge, Jeffrey A. Goldberg

Retrospective Theses and Dissertations

No abstract provided.

Population Ecology Of The Beach Mouse, Peromyscus Polionotus Niveiventris, Douglas Dale Extine

Retrospective Theses and Dissertations

No abstract provided.

Sarcocystis Of Passerine Birds: Sexual Stages In The Opossum (Didelphis Virginiana), Edith D. Box, Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Sexual stages of a Sarcocystis of passerine birds were demonstrated by feeding muscle cysts from cowbirds (Molothrus ater) and grackles (Cassidix mexicanus) to opossums (Didelphis virginiana). Opossums were examined at necropsy at 36 h, 13.5 days, and 29.5 days post-inoculation (PI). Large numbers of macro- and microgamonts were present in the small intestine 36 h PI, while only sporocysts and oocysts were present 13 days or more PI. Microgamonts in different stages of development were in the intestinal epithelium above the nucleus and macrogamonts were at the base of the epithelial cells or in …

The Effects Of High Cheese Diets On Brain Serotonin And Alcohol Consumption, Beverly A. Utt

Loma Linda University Electronic Theses, Dissertations & Projects

Male weanling rats were placed on a nutritionally adequate casein diet and randomly assigned to one of eight groups. The first four groups were force fed alcohol for 22 days prior to the experimental phase of the study, while the last four groups had access to water only. Upon commencing the experimental phase each group was given one of the following diets: continuation of the casein diet; Cheddar; Limburger; or Roquefort cheese diets, along with the choice of alcohol and/or water. The particular cheeses were chosen for their ability to raise brain serotonin levels (62) . Alcohol consumption was measured …

Dissecting Aneurysm Of Aorta Complicating Coarctation Of The Aorta: Case Report And Brief Literature Review, Remigio Garcia, Julius M. Ohorodnik, Donald J. Magilligan Jr.

Henry Ford Hospital Medical Journal

The incidence of dissecting thoracic aorta aneurysm complicating coarctation of the aorta ranges from 1.7 to 23% in large series of coarctation of the aorta reported. In a review of 95 cases of dissection of the aorta, we found only one case with associated coarctation of the aorta. The presence of this anomaly, although rare, should be suspected and searched for in younger patients with dissection, in view of the surgical implications at the time of correction.

Back Matter

Henry Ford Hospital Medical Journal

No abstract provided.

Evaluation Of Impacts Associated With Reregulation Of Water Levels In Lake Mohave, Larry J. Paulson, John R. Baker, U.S. Water And Power Resources Service

Publications (WR)

The U.S. Water and Power Resources Service is considering reregulating Lake Mohave water levels to increase the net power benefit from Hoover Dam. Reregulation will not increase the generation capacity of the Hoover powerplant but it will enable the plant operation to be increased when the energy has greater monetary value. Energy generated at different times of the year has different market value, the highest being in January-March and July- September. By generating more power during these periods more net monetary benefit can be derived from Hoover Dam. The total volume of water released from Hoover Dam over an annual …

Take A Beetle To Lunch Today Or The Natural History Of Dung Beetles, Brett C. Ratcliffe

University of Nebraska State Museum: Entomology Papers

The appellation "dung beetles" refers to those scarab beetles that are usually found with animal feces either feeding on or depositing eggs in it. While this at first may seem like an incredibly unsavory topic, the fact remains that numerous creatures exist that feed on the waste products of other animals. And, as it turns out, it's a good thing they do.

The Scarabaeidae, or scarabs, is one of the larger families of beetles; it has 30,000 plus species worldwide and approximately 15,000 species in North America. (See my Museum Notes of March 1970.) The family is divided into subfamilies …

Birdman: [Dr. Peter Marler], Fulvio Bardossi, Judith N. Schwartz

Rockefeller University Research Profiles

Rockefeller University Research Profiles are a series of scientific profiles that were published quarterly, from 1980-1990, by the Rockefeller University. Each issue features the research and achievements of an individual Rockefeller University scientist.

Observations Of Diatom Populations In The Snake River, Minnesota, Donald G. Kaddatz, Keith M. Knutson

Journal of the Minnesota Academy of Science

No abstract provided.

Nongame Birds Of The Rocky Mountain Spruce- Fir Forests And Their Management, Kimberly G. Smith

T.W. "Doc" Daniel Experimental Forest

Spruce-fir forests in the Rocky Mountains consist mainly of Engelmann spruce and subalpine fir. The breeding avifaunas in these forests show remarkable consistency in composition along a latitudinal gradient from Montana to Arizona and New Mexico, and with avian communities in the Hudsonian life zone in Washington, Oregon, and California. Woodpeckers, corvids, and seed-eating finches are the most common components. Only the Golden Eagle and a few other raptors are threatened or endangered. Few species winter in these high mountain forests. The distribution of many species is controlled primarily by the vegetation physiognomy, a variable under the control of the …

Nepal Studies Association Bulletin, No. 21, Nepal Studies Association, Donald A. Messerschmidt

Nepal Studies Association Newsletter

No abstract provided.

Varieties Of Cheese, T A. Morris

Bulletins 4000 -

While Cheddar cheese is by far the main type as far as English speaking countries are concerned, it is only one of a large number of varieties of cheese which are becoming more universal in production and consumption. In other than English speaking countries Cheddar cheese is almost unknown and yet the consumption of cheese in some of these countries is very much greater. The naming of cheese types has usually been a result of the use of the name of the place where the cheese was first made. Thus cheeses of similar type but produced in a different locality …