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Articles 1 - 14 of 14
Full-Text Articles in Life Sciences
A Light And Electron Microscopic Study Of Visual Neurons In The Medulla Externa Of The Crab Hemigrapsus Nudus, Yu Cheng Liao
A Light And Electron Microscopic Study Of Visual Neurons In The Medulla Externa Of The Crab Hemigrapsus Nudus, Yu Cheng Liao
Loma Linda University Electronic Theses, Dissertations & Projects
The decapod crustacean with a relatively well-defined visual system have contributed significantly to our understanding of visual neuron morphology and physiology. The general morphology of the optic lobes of several decapods were initially described by Parker (1897) and Hanstrom (1924). In the past few years, several light and electron microscope studies have been made on the lamina ganglionaris: the first optic ganglion, of the lobster (Hamori and Horridge, 1966a); the crayfish (Hafner, 1974; Nassel, 1976a), and the crab (Stowe et al., 1977; Rafuse et al., in preparation). As yet, no adequate description has been made of the visual neurons in …
Identification Of Fossil Wood From The Specimen Creek Area Of The Gallatin Petrified Forest, Yellowstone National Park, Montana, Tetsuya Yamamoto
Identification Of Fossil Wood From The Specimen Creek Area Of The Gallatin Petrified Forest, Yellowstone National Park, Montana, Tetsuya Yamamoto
Loma Linda University Electronic Theses, Dissertations & Projects
The petrified fossil forests in the Specimen Creek area of Gallatin Petrified Forest contain spectacular petrified tree stumps, trunks and logs in horizontal and vertical positions. These fossils forests are embedded in early middle Eocene volcaniclastic rocks and piled in sequential layers.
One hundred and nineteen fossil wood samples were collected from three selected layers [unit 1, unit 5 and unit 9, (DeBord 1977)] of the sequentially entombed Fossil Forests in the above area, and identified as follows: 3 families, 9 genera, in Gymnosperms; 13 families, 15 genera in Angiosperms.
PINACEAE: Keteleeria*, Larix*, Pinus, Tsuga*
PODOCARPACEAE: Podocarpus
TAXODIACEAE: Glyptostrobus*, Sequoia, …
Analysis Of The Potentials And Topographical Relations Between The Olfactory Bulb And Prepyriform Cortex, William S. Seibly
Analysis Of The Potentials And Topographical Relations Between The Olfactory Bulb And Prepyriform Cortex, William S. Seibly
Loma Linda University Electronic Theses, Dissertations & Projects
Olfactory bulb efferents sweep caudally over the prepyriform cortex in a broad fiber sheet called the lateral olfactory tract (LOT). The LOT begins as a compact sheet of fibers in the olfactory peduncle and narrows to a bundle caudally. It is the primary axonal pathway between the olfactory bulb and the cortex. The shape and cross-sectional area of the LOT was measured from histologic sections. The cross-sectional area diminishes to about half from rostral to caudal measurements. An array of 58 electrodes spaced at intervals of 1 mm was constructed to conform to the curvilinear surface and geometry of the …
Orthognathic Surgical Expansion Procedure Of The Mandible Of Female Baboon Papio Sp?, Willis L. Schlenker
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 …
An Ultra-Violet Light Microscopic Study Of The Hydroxylapatite Ceramic-Bone Interface Phenomena, Leonard W. Pierce
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
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 Periapical Inflammation On Cellular Cementum : A Scanning Electron Microscope Study, Gary S. Yonemoto
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 …
The Effect Of Light Intensity On The Incorporation Of Calcium Into The Carbonate Skeleton In Bossiella Orbigniania, Carol D. Logan
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 …
Relationship Of Tecate Cypress Distribution To Soil Types, David E. Stottlemyer
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 …
The Rate Of The Healing Process In Venous Thrombi Produced By A Sclerosing Agent With Special Attention To Endothelial Lining, Kiyoshi Tanaka
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 …
A Comparative Analysis Of Plant Response Parameters : To The Los Angeles Aqueduct Systems In The Mojave Desert, California, Edwin F. Archbold
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 …
The Effects Of High Cheese Diets On Brain Serotonin And Alcohol Consumption, Beverly A. Utt
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 …
#56 - Wild Edible Plants, Department Of Health Education
#56 - Wild Edible Plants, Department Of Health Education
Keys to Total Health
No abstract provided.
#54 - Tips On Gardening, Department Of Health Education
#54 - Tips On Gardening, Department Of Health Education
Keys to Total Health
- What to Grow
- Limited Space
- Seeding
- Harvesting
- Winter Gardens
- Organic Farming
- Compost
- Chemical Fertilizer
- Unfounded Claims
- Health in a Garden
- Quiz