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Full-Text Articles in Life Sciences
An Ultrastructural Study Of Intramuscular Melanocytes In Pet/Wmr Mice, Charles August Gomer
An Ultrastructural Study Of Intramuscular Melanocytes In Pet/Wmr Mice, Charles August Gomer
Master's Theses
An examination of the lateral head of the gastrocnemius of the PET/Wn!.r mouse was made with an electron microscope. Cells of the perimysium and endomysium were described and the relationship of these cells to muscle cells was characterized. The relationship between melanocytes and muscle cells found in this strain was the major focus. Melanocytes were seen to be present in the perimysium and endomysium with the greatest concentration in the endomysium. Melanocytes of the perimysium appeared segregated from the adjacent tissue by fibroblasts,which surround ed the melanocytes with their cytoplasmic processes, a well as by collagen fibers. Melanocytes of the …
The Quality Of Storm Runoff From Different Kinds Of Land Surfaces In The Drainage Basin Of Westhampton Lake, Richmond, Virginia, Margaret Emil Coppedge
The Quality Of Storm Runoff From Different Kinds Of Land Surfaces In The Drainage Basin Of Westhampton Lake, Richmond, Virginia, Margaret Emil Coppedge
Master's Theses
Samples of runoff were collected during storms from four different areas within the drainage basin of Westhampton Lake, Richmond, Virginia, between October, 1977, and January, 1978. The areas were a residential area, concrete street gutter, asphalt parking lot, and broadleaf forest.
The samples were analyzed for pH, levels of reactive phosphate, nitrate, and turbidity, and their effects on the growth of algae from Westhampton Lake.
The pH of runoff from the residential area, gutter, and forest usually ranged between 6-7 and the parking lot usually ranged between 4-5. Levels of turbidity varied considerably between storms and areas. Runoff from the …
Lactate Dehydrogenase Isozyme Patterns From Five Species Of Snakes : Comparison Of Rattlesnake Vibratory Muscle With Body Epaxial Muscle, Cecil Bernard Cross
Lactate Dehydrogenase Isozyme Patterns From Five Species Of Snakes : Comparison Of Rattlesnake Vibratory Muscle With Body Epaxial Muscle, Cecil Bernard Cross
Master's Theses
Lactate dehydrogenase (LDH) isozyme patterns of seven tissues in each of five species of snakes are described from their polyacrylamide gel electrophoretic characteristics. The tissues examined included vibratory tail muscle, non vibratory tail muscle, body epaxial muscle, heart muscle, whole blood, liver and kidney. The species of snakes included Crotalus adamanteus, C. h. horridus, Agkistrodon piscivorus and Sistrurus miliarius barbouri from the family Crotalidae and Natrix taxispilota from the family Colubridae. These snakes show a decreasing continuum of tail vibratory activity, respectively, to N. taxispilota, which has a nonvibratory tail muscle.
Crotalus adamanteus, C. h. horridus and A. piscivorus have …
Antipredative Function Of The Gelatinous Coating Of The Eggs Of The Frog, Rana Pipiens, Walter Stanley Jennings
Antipredative Function Of The Gelatinous Coating Of The Eggs Of The Frog, Rana Pipiens, Walter Stanley Jennings
Master's Theses
The eggs of Rana pipiens, the southern leopard frog, were offered in several forms to Lepomis macro chirus, the bluegill. The fish were offered random trial discrimination tests while in groups of one or five in 40 1 aquaria. L. macrochirus learned to make distinct discriminations and rejected fertilized and unfertilized egg masses, boiled egg masses, dried frog eggs and gelatin made with homogenated frog eggs. In contrast, Shrimp-el-etts, Shrimp-el-etts dyed black, gelatin made with peptone, and ovarian eggs were accept ed readily. The results suggest a protective function for the gelatinous coat: both physical and chemical . The chemical …
Distribution Of Etheostoma Nigrum Rafinesque, Etheostoma Olmstedi Storer, And Their Introgressive Hybrid Populations In The James River Drainage, John Edward Clark
Distribution Of Etheostoma Nigrum Rafinesque, Etheostoma Olmstedi Storer, And Their Introgressive Hybrid Populations In The James River Drainage, John Edward Clark
Master's Theses
An analysis of proportional measurements and meristic characters of Etheostoma nigrum and E. olmstedi identified five populations within the James River drainage. Etheostoma nigrum inhabited the montane and piedmont areas through the Fall Line; E. o. atromaculatum was distributed throughout the tidal river and its lower tributaries; and E. o. olmstedi was restricted to creeks on the upper coastal plain. Appomattox River and Falling Creek contained introgressive hybrid populations with character frequency distributions intermediate to those of E. nigrum and E. o. olmstedi. It is proposed that E. nigrum probably entered these drainages through stream piracy on piedmont tributaries of …
Reactivity Of Antibodies Versus Streptococcal Carbohydrate And Protein Antigens And Human Glomerular Basement Membrane Carbohydrate And Protein Antigens In Mammalian Tissues, Kathleen A. Chase
Master's Theses
No abstract provided.
The Effects Of Linear Alkyl Benzene Sulfonate On The Incorporation Of Radioactive Uridine Into High Polymer Rna During The Early Development Of The Fathead Minnow (Pimephales Promelas Rafinesque), James P. Hardwick
Master's Theses
No abstract provided.
Characterization Of The Nonfermentative Gram Negative Rods Of Group Iik Utilizing Biochemical, Serological, And Antibiotic Susceptibility Tests, Donna S. Granstrom
Characterization Of The Nonfermentative Gram Negative Rods Of Group Iik Utilizing Biochemical, Serological, And Antibiotic Susceptibility Tests, Donna S. Granstrom
Master's Theses
No abstract provided.
The Effects Of Left Stellate Ganglion And Ventrolateral Cardiac Nerve Activity On Canine Av Nodal Electrophysiologic Properties, David Leon Fishman
The Effects Of Left Stellate Ganglion And Ventrolateral Cardiac Nerve Activity On Canine Av Nodal Electrophysiologic Properties, David Leon Fishman
Master's Theses
No abstract provided.
Characterization Of Pseudomonas Cepacia Using Biochemical, Antibiotic Susceptibility And Serological Tests, Beatrice Grazina Miceika
Characterization Of Pseudomonas Cepacia Using Biochemical, Antibiotic Susceptibility And Serological Tests, Beatrice Grazina Miceika
Master's Theses
No abstract provided.
Aldehydic Transition State Analogue Inhibitors Of Α-Chymotrypsin, Alexandra Constance Cheerva
Aldehydic Transition State Analogue Inhibitors Of Α-Chymotrypsin, Alexandra Constance Cheerva
Master's Theses
No abstract provided.
Insulin And Altered Reticuloendothelial System Function, Angela M. Hadbavny
Insulin And Altered Reticuloendothelial System Function, Angela M. Hadbavny
Master's Theses
No abstract provided.
A Study Of The Nymphal Stages Of Trichocorixa Verticalis Verticalis (Fieber) Under Laboratory Conditions, Sharon R. Raczynski
A Study Of The Nymphal Stages Of Trichocorixa Verticalis Verticalis (Fieber) Under Laboratory Conditions, Sharon R. Raczynski
Master's Theses
No abstract provided.
Effect Of Dopamine And Dietary Sodium Deficiency On In Vitro Renin Release And Cyclic 3 ́5 ́-Adenosine Monophosphate Content In Male Rat Kidney Slices: Modification By Dopaminergic-Receptor Agonistic And Antagonistic Agents, Victor Allyn Aletich
Master's Theses
No abstract provided.
Susceptibility Of Different Embryonic Stages Of The Fathead Minnow, Pimephales Promelas (Rafinnesque), To Linear Alkyl Sulfonate Toxicity, Don L. Thompson
Susceptibility Of Different Embryonic Stages Of The Fathead Minnow, Pimephales Promelas (Rafinnesque), To Linear Alkyl Sulfonate Toxicity, Don L. Thompson
Master's Theses
No abstract provided.
The Non-Teratogenic Effects In Mice Progeny By Maternal Treatment With Amygdalin, Victoria Ann Rowe
The Non-Teratogenic Effects In Mice Progeny By Maternal Treatment With Amygdalin, Victoria Ann Rowe
Master's Theses
No abstract provided.
The Effect Of Isoproterenol And Alpha- And Beta-Adrenoreceptor Blockade On Renin Release And Cyclic-35Ì-Adenosine Monophosphate Content In Rat Renal Cortical Slices, Louis Michael Lissuzzo
The Effect Of Isoproterenol And Alpha- And Beta-Adrenoreceptor Blockade On Renin Release And Cyclic-35Ì-Adenosine Monophosphate Content In Rat Renal Cortical Slices, Louis Michael Lissuzzo
Master's Theses
No abstract provided.