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Rabbit Erythropoiesis In Vitro, K. G. M. Brockbank

MUSC Theses and Dissertations

The erythropoietin (Ep) dose response of erythroid colony-forming units (CFU-e) and erythroid burst-forming units (BFU-e) from rabbit bone were similar to murine erythroid precursor Ep requirements. Bone marrow and peripheral blood contained a continuum of erythroid precursors at differing stages of maturation. The earliest BFU-e were assayed on day 10. CFU-e were observed in bone marrow, but not in peripheral blood. The most mature erythroid precursors observed in peripheral blood were intermediate BFU-e, assayed on day 5. A linear relationship exists between the number of nucleated bone marrow cells plated and the number of 3 day colonies and 10 day …

The Effect Of Prostaglandin F₋B2₋Sa And Prostaglandin E₋B2₋S Upon The Endometrium Of The Mature OöPhorectomized Rat, Marilyn Mavis Miller

Dissertations

No abstract provided.

Activation Of Long Descending Propriospinal Neurons In Cat Spinal Cord, Robert J. Adams, Robert D. Skinner, Ronald S. Remmel

Journal of the Arkansas Academy of Science

Isolated mammalian spinal cord has been shown capable of generating locomotor activity. Propriospinal systems assumed to coordinate fore- and hindlimb activity are poorly understood. This study characterizes the long descending propriospinal (LDP) neurons in terms of the location of the somas and their peripheral inputs by direct neuronal recording. Anatomical studies using axonal retrograde transport of horseradish peroxidase from the lumbar to the cervical spinal cord as a tracer first described these neurons. Two hundred and thirty-one LDP neurons were identified in electrophysiological experiments. Of these, 123 responded to natural stimulation, and about 50% of the others were activated only …

Infantile Nutrition : Obesity And Its Causes, Anna Maria Glenn

Theses, Dissertations and Capstones

The purpose of this paper is to examine current infant feeding practices as they concern infantile obesity. Our current practices will be compared to the historical factors such as feeding practices of one hundred years ago. Physical, cultural, and psychological factors of infantile obesity will also be considered with and compared to current infant feeding practices with a view toward establishing recommendations for the feeding of inf ants of our culture.

Marketing Services Which Can Provide Help For Frail Elderly Residents Living Within The City Of Saint Louis, Missouri, Martha Hoyt Dodge

Theses

Unavailable.

How We Look: Studies Of Oculomotor-System Neural Connections, Ronald S. Remmel, Robert D. Skinner

Journal of the Arkansas Academy of Science

The neural connections of the reticular formation (RF) with the vestibular nuclei (8V) and the ascending medial longitudinal fasciculus (MLF) were studied, because many neurons in these structures carry eye-movement and head-movement (vestibular) signals and are only one or two synaptic connections removed from eye motorneurons. We used stimulating electrodes placed in specific brainstem structures and a single-neuron recording microelectrode in anesthetized or decerebrate cats. Connections were determined when the neurons were excited either forwards (orthodromically) or backwards (antidromically) by a shock. Four classes of neurons were studied. One neuronal class in the pontine RF projects axons into the ascending …

Time And Life: Applications Of Modern Chronobiology, Lawrence E. Scheving, John E. Pauly

Journal of the Arkansas Academy of Science

Chronobiology is that branch of science which objectively quantifies and explores mechanisms of biological time structure. It is an integrating discipline that impacts on all forms of life. When physiological functions are plotted along a time scale, they appear as regularly repetitive wave forms with means, amplitudes, phasing and periods. In nature these rhythms are found to have many frequencies, from a fraction of a second (ultradian) to a year or more (infradian or circannual); and those with periods of about one day (circadian) have been explored extensively. Examples of several circadian rhythms are given for experimental animals and man. …

Investigation Of A Factor Released By Neoplastic Cells Which Produces A Chemokinetic Response In Activated Macrophages, Richard Durelle Lane

Theses and Dissertations

The increase in rate of random migration (chemokinesis) of C. parvum activated macrophages in media conditioned by Lewis Lung (LL) carcinoma cells was attributed to a trypsin sensitive, heat stable, high molecular weight factor released from the membrane of the tumor cells.

A capillary tube assay was developed to expediently monitor the chemokinetic activity of macrophages incubated in whole and fractionated media. The capillary tube assay was found to be capable of detecting both chemokinetic and chemotactic (directional movement) factors present in the test media. Statistical analysis revealed the capillary tube assay provided reproducible data both within and between experiments. …

Regulation Of Cartilage Acid Hydrolases And Their Relationship To Skeletal Growth, John Richard Hubbard

Theses and Dissertations

The in vivo regulation of several acid hydrolases by growth hormone was investigated in an attempt to lend insight into the mechanism of growth hormone action. In addition, the relationship of these enzymes to age-dependent changes in skeletal growth rate was examined. Initial studies showed that hypophysectomy reduced the activity of an unknown cartilage protease, which was assayed by digestion of gelatin-membrane substrates at pH 4.0. Treatment of hypophysectomized rats with growth hormone enhanced this activity to about normal levels. The unidentified protease activity was also shown to be higher in younger, more rapidly growing rats, than in older, less …

Effects Of Organic Compounds On Amphibian Reproduction, Wesley J. Birge, Jeffrey A. Black, Robert A. Kuehne

KWRRI Research Reports

Aquatic toxicity tests were conducted with atrazine, carbon tetrachloride, chloroform, methylene chloride, trisodium nitrilotriacetic acid (NTA), and phenol. Each compound was administered to developmental stages of three to five amphibian species. Exposure was initiated at fertilization and maintained through 4 days posthatching. Test responses included lethality and teratogenesis. Different amphibian species exhibited varying degrees of tolerance to the selected compounds. Greatest tolerance usually was observed for the more broadly adapted semi-aquatic and terrestrial species (e.g., Bufo americanus, Bufo fowleri). The more sensitive amphibians usually included those species which normally are restricted to aquatic or moist habitats (e.g., Rana …

The Effect Of Walk Or Jog Recovery From Anaerobic Work On Blood Lactate Levels And Subsequent Two-Minute Run Performance, Rick Alan Livesey

Masters Theses

The purpose of the study was to investigate the effects of a walk or jog recovery on two-minute run performances and the concentrations of blood lactate.

Eight highly trained male subjects were selected from the Eastern Illinois University Track Team. The test procedure consisted of two, maximal two-minute runs on the track for distance, separated by a 30-minute recovery. The recovery consisted of a walk at 20-minutes per mile pace or a jog at 7½ to 8 minutes per mile pace. Venous blood samples were drawn three minutes after the first run, two minutes prior to the second run, and …

Comparative Effects Of Two Avoidance Paradigms Upon Ethanol Self-Selection, Richard O. Shellenberger Ii

Masters Theses

Twelve adult male rats were given free access to a two bottle free-selection of tap water or a 10% ethanol/tap water solution in the home cage for a period of 140 consecutive days with the alcohol consumption data in the form of mg absolute ETOH/g subject weight collected daily. This study incorporated three stages. Phase I was a 40 day period of alcohol acclimation with alcohol consumption during the second 20 days constituting the baseline consumption rate. Mean baseline alcohol consumption was used to block subjects into three groups. The second phase of the study consisted of an 80 day …

Comparison Of Burned Patients' Perception Of Pain With Nurses' Perception Of Patients' Pain, Merri Diane Walkenstein

Theses and Dissertations

Pain is a universal experience. Caring for people in pain is a central aspect of nursing practice. Many studies have been done to determine the physical and psychosocial mechanisms of the pain sensation, in addition to methods of relief. Very little has been done, however, dealing specifically with the pain experienced by the burned patient.

People hospitalized with thermal injuries complain most often of the intensity and long duration of their pain experience. Due to the large number of persons sustaining thermal injuries every year, it is apparent that nurses must familiarize themselves with methods of evaluation and intervention to …

The Somatotopic Organization Of The Rat Trigeminal Ganglion, Scott Brian Shellhammer

Master's Theses

No abstract provided.

Catalog (1980 - 1981), Philadelphia College Of Osteopathic Medicine

Catalogs

A snapshot of the PCOM curriculum throughout the decades.

Outlook Magazine, Spring 1980

Outlook Magazine

No abstract provided.

Outlook Magazine, Winter 1980

Outlook Magazine

No abstract provided.

10.01 Association Of American Cancer Institutes (Aaci) - General, 1979-1980, Office Of The President

President's Office National and International Records: R. Lee Clark,1968-1979 Archives

10.0 Association of American Cancer Institutes (AACI), 1969-1980, President's Office National and International Records

Modification Of The Myointimal Response To Arterial Injury: The Effects Of Aspirin And Warfarin, David A. August

Yale Medicine Thesis Digital Library

No abstract provided.

Village Women Organize: The Mraru Bus Service, Jill Kneerim

Poverty, Gender, and Youth

The Mraru Women's Group in rural Kenya, like many community women's organizations around the world, is an example of a deeply rooted tradition of association and self-help among women. In 1971 the group began to gather its resources to solve a common problem—transportation. They raised money, bought a bus, and began a public transport service that made money; they now face other difficult questions such as reinvesting profits, serving members' broader needs, and maintaining a strong economic base. The Mraru Women's Group has shown unusual creativity and persistence in identifying common needs and organizing to meet them. They have also …

1980 Beef Cattle Report, Leo E. Lucas

Nebraska Beef Cattle Reports

Weighing steers three consecutive days at the beginning and end of the trial reduced variation and increased the probability of detecting a difference in daily gain and gain/protein ratios between treatments when compared to a standard weighing method (once at the beginning and once at the end of the trial). Regressing 1 initial, 1 final and 11 weekly weights also decreased variation and increased the probability of detecting treatment differences compared to the standard method, but was more variable than using three weights at the beginning and end of the trial.

Young, growing steers and lambs supplemented with natural protein …

Study Of The Anatomy Of The Alimentary Canal Of Brochymena Quadripustulata (Hemiptera:Pentatomidae), Dan T. Barber, Lynita M. Cooksey, David W. Abell

Journal of the Arkansas Academy of Science

An anatomical study of the alimentary canal and associated salivary apparatus was conducted for the pentatomid, Brochymena quadripustulata. The esophagus, ventriculus, pylorus, rectum, principal salivary glands and ducts are described and illustrated. Described structures of Brochymena quadripustulata are compared with various species of pentatomids and other hemipterans.

Connections Of The Mesencephalic Locomotor Region (Mlr) In The Cat, E. Garcia-Rill, Robert D. Skinner, S. A. Gilmore

Journal of the Arkansas Academy of Science

The cat entopeduncular nucleus (EN), which is the main output of the basal ganglia, is known to project to the mesencephalic tegmentum. We have been able to elicit antidromic responses in single EN neurons from the region of the mesencephalic locomotor region (MLR), then transect (precollicular-postmamillary) the brainstem and elicit rhythmic movements of the limbs by stimulation of the same site in the same animal. Injections of the fluorescent dye 2,4 diamidino phenylindole 2 HCL (DAPI) into this area induces retrograde labeling of cell bodies in EN and motor cortex. Injections of a tritiated amino acid (leucine) into the motor …

Newsletter, Volume 25, Number 01, January - February 1980, Y. M. Wang Phd, F. F. Madanat Md, J. C. Kimball Md, C. A. Gleiser Vmd

Newsletter: A Report to Physicians of Texas Archives

• Vitamin E and Adriamycin Cardiotoxicity
• Radiation Biology Volume Examines Theories
• UICC Sets Cancer Congress in USA
• Cooperative Education Program with Texas A&M
• Regents Appoint Hsu to Chair
• Risk Factors and Prophylaxis for CNS Relapse of Malignant Lymphoma
• Thomas Daly Dies
• New Book Published
• Vice President for Patient Care Appointed
• 1979 Year Book of Cancer Reviews Studies, Progress
• Noteworthy
• Consultation Service Nurse-to-Nurse

Differential Effects Of Serotonin Antagonists On Hypothermia And Stereotyped Behavior Induced By Apomorphine And Lergotrile In Rats, Rolin Lee Wade

University of the Pacific Theses and Dissertations

The naturally occuring ergot alkaloids of the fungus, Claviceps purpurea, and their many derivatives have been of neuropharmacological interest for many years because of their ability to affect peripheral and central adrenergic and serotonergic systems. More recently, selected compounds such as lergotile (2-chloro-6-methyl ergoline-8-beta acetonitrile) and and bromocriptine (2-bromo-alpha-ergocryptine), have been given additional attention due to their possible therapeutic potential in the treatment of parkinson’s disease, acromegaly and other disorders. There have been considerable data published attempting to establish the mechanism(s) whereby the ergot compounds exert their effects. A large portion of these experiments involves the interaction of ergot compounds …

In Vitro Comparative Studies On The Effect Of Vinblastine Sulfate And Hyperthermia On Normal And Transformed Human Lung Fibroblasts, Fernando Alberto Duk

University of the Pacific Theses and Dissertations

Although the differential response of malignant cells to hyperthermia was observed at the end of the last century, few investigations into the phenomenon were made until fairly recently. At first the results obtained were inconsistent due mostly to the inefficient techniques in use at the time. The advent of cell and tissue culture, increased knowledge in tumor biology, advances in molecular biology, and the development of equipment which could raise and monitor the temperature of tumors during hyperthermic treatments, have made the study of the effects of supranormal temperature on malignant neoplasias substantially more reliable.

The effectiveness of the combined …

Alterations In Urinary Levels Of N1-Acetylspermidine In Response To Castration And Testosterone Replacement Therapy In The Rat, Andrew A. Lettes

University of the Pacific Theses and Dissertations

Castration and testosterone replacement therapy served as a model to assess anabolic activity in the rat. The present study was undertaken to examine more closely whether changes in cellular anabolic activity are reflected in subsequent alterations of urinary N¹ -acetylspermidine excretion.

A sensitive fluorometric assay was employed which utilized the dansylation reaction . The dansylated derivatives were quantitated by normal phase high pressure liquid chromatography. This assay system exhibited a range of linearity from 0.1 to 10 nanomoles which encompassed the physiological variability observed during analysis of urinary N¹-acetyl spermidine.

The normal level of N¹-acetylspermidine …

Effects Of Fixed Interval And Continuous Biofeedback Reinforcement On Emg Frontalis Muscle Activity, Kathleen I. Twinem

University of the Pacific Theses and Dissertations

The effects of continuous vs. intermittent reinforcement using electromyographic (EMG) feedback as the reinforcer were compared in reducing frontalis muscle activity. Fourteen subjects were chosen from a group of 30 students who had expressed an interest in learning how to relax. Those students having the highest pre-experimental baseline scores were chosen. They were matched according to both those scores and sex and then randomly assigned to either a continuous biofeedback reinforcement group or a 30 sec. fixed interval biofeedback reinforcement group. The experiment consisted of nine sessions (three acquisition, two treatment, and four extinction) with integrated EMG activity from the …

Pharmacologic Investigation In Mice Of The Effects Of Narcotic Antagonists On Dopamine Agonist Reversal Of Oxotremorine Or Reserpine, Mike Minoru Namba

University of the Pacific Theses and Dissertations

In the present study, two different drugs were used to induce a Parkinson-like condition. The first drug was the centrally acting cholinergic agonist oxotremorine (OXTM) which readily induces tremor and rigidity in mice (54). This tremor has been reported to be antagonized by dopamine agonists such as L-dopa and apomorphine (50,54,55) as well as by anticholinergic drugs such as scopolamine (46) . The other drug used was reserpine which interferes with the neuronal storage of dopamine and results in its depletion in the brain (56). Reserpine induces tremor, rigidity, blepharoptosis (a drooping of the eyelids), and catalepsy (48,57-59). The catalepsy …

Parental Self-Concept, Locus Of Control And Assessment Of Infant Temperament., Phyllis Nichols Horns

All ETDs from UAB

No abstract provided.