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Master's Theses

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Articles 1381 - 1410 of 1567

Full-Text Articles in Life Sciences

The Role Of Na+ + K+ -Activated Adenosine Triphosphatase In The Osmoregulating Marsh Clam, Rangia Cuneata, David Goodwin Sainting Jan 1979

The Role Of Na+ + K+ -Activated Adenosine Triphosphatase In The Osmoregulating Marsh Clam, Rangia Cuneata, David Goodwin Sainting

Master's Theses

The marsh clam, Rangia cuneata has been shown in other laboratories to maintain body fluid osmolality above that of the medium in salinities below 10 o/oo. Since the membrane bound enzyme Na ++ K+ - ATPase has been implicated in the osmoregulatory processes in many aquatic organisms, the levels of Na++K+-ATPase activity and 3H-ouabain binding in homogenized tissue samples from mantle, gill, rectum, ventricle, kidney, and foot (including epithelial and muscle tissue) were measured. Mantle, kidney, and gill contained substantial concentrations o f Na + +K+ -AT Pase acti. vi. ty an d 3H- ouab ai. n bin d"i ng …


The Effects Of Ph On Chloride Flux In Fundulus Heteroclitus, Timothy Alton Washburn Jan 1979

The Effects Of Ph On Chloride Flux In Fundulus Heteroclitus, Timothy Alton Washburn

Master's Theses

The effects of increasing hydrogen ion concentration on rate of chloride influx and efflux were studied in the killifish, Fundulus heteroclitus, adapted to fresh water. Because increasing hydrogen ion concentrations have been shown to inhibit sodium influx and because evidence exists to support coupling of chloride transport with sodium transport, the present study was undertaken to determine what effect pH would have on rate of chloride flux. Chloride efflux rates were studied after the addition of sodium bicarbonate to the medium. No significant pH-dependent changes in efflux rate were observed, except at very low pH. Influx rates were significantly changed, …


Study Of Hibernation-Induced Alterations Of Erythrocyte Lipids In The 13-Lined Ground Squirrel, Spermophilus Tridecemlineatas, James Clarence Veltman Jan 1979

Study Of Hibernation-Induced Alterations Of Erythrocyte Lipids In The 13-Lined Ground Squirrel, Spermophilus Tridecemlineatas, James Clarence Veltman

Master's Theses

No abstract provided.


A Comparative Study Of Tmv Infected Mesophyll Protoplasts Of Nicotiana Tabaccum Cv. White Burley And Nicotiana Glutinosa, Allan Louis Campione Jan 1979

A Comparative Study Of Tmv Infected Mesophyll Protoplasts Of Nicotiana Tabaccum Cv. White Burley And Nicotiana Glutinosa, Allan Louis Campione

Master's Theses

No abstract provided.


Localization And Properties Of Arginase In The Developing Quail Embryo, Coturnix Coturnix Japonica, Peter Houtman Jan 1979

Localization And Properties Of Arginase In The Developing Quail Embryo, Coturnix Coturnix Japonica, Peter Houtman

Master's Theses

No abstract provided.


Gastrotricha Of Kettle Moraine State Park, Garry J. Rossino Jan 1979

Gastrotricha Of Kettle Moraine State Park, Garry J. Rossino

Master's Theses

No abstract provided.


The Purification, Properties And Chemical Kinetics Of Cathepsin B1, Andrew Stanley Bajkowski Jan 1979

The Purification, Properties And Chemical Kinetics Of Cathepsin B1, Andrew Stanley Bajkowski

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 Of Male Rat Renal Cortical Slices; Modification By Dopamine-Receptor And Beta-Adregenic Receptor Antagonists, Fred Daniel Romano Jan 1979

Effect Of Dopamine And Dietary Sodium Deficiency On In Vitro Renin Release And Cyclic 3' -5' Adenosine Monophosphate Content Of Male Rat Renal Cortical Slices; Modification By Dopamine-Receptor And Beta-Adregenic Receptor Antagonists, Fred Daniel Romano

Master's Theses

No abstract provided.


Observations On The Biology Of Phyllobaenus Humeralis (Say) (Coleoptera, Cleridae) With Descriptions Of Its Immature Stages, Clifford Pulaski Jan 1979

Observations On The Biology Of Phyllobaenus Humeralis (Say) (Coleoptera, Cleridae) With Descriptions Of Its Immature Stages, Clifford Pulaski

Master's Theses

No abstract provided.


Study Of Tobacco Mosaic Virus Replication In The Protoplasts Of Saccharomyces Cervesisiae Using Assay Host Phaseolus Vulgaris Cv. Pinto And Fluorescence Microscopy, Gurdeep Kaur Jan 1979

Study Of Tobacco Mosaic Virus Replication In The Protoplasts Of Saccharomyces Cervesisiae Using Assay Host Phaseolus Vulgaris Cv. Pinto And Fluorescence Microscopy, Gurdeep Kaur

Master's Theses

No abstract provided.


The Effect Of Fire On A Prairie In Northeastern Illinois, Thomas Kevin Shaughnessy Jan 1979

The Effect Of Fire On A Prairie In Northeastern Illinois, Thomas Kevin Shaughnessy

Master's Theses

No abstract provided.


Variations In Mood During The Menstrual Cycle In Relation To The Personality Factors Of Trait-Anxiety And Androgyny, Mary Leslie Smith O'Connor Jan 1979

Variations In Mood During The Menstrual Cycle In Relation To The Personality Factors Of Trait-Anxiety And Androgyny, Mary Leslie Smith O'Connor

Master's Theses

No abstract provided.


The Immature Stages Of The Rose Curculio Meryhynchites Bicolor (Fabricius) (Coleoptera: Rhynchitidae): With Notes On Its Biology In Northern Illinois, Sheila S. Kuritsky Jan 1979

The Immature Stages Of The Rose Curculio Meryhynchites Bicolor (Fabricius) (Coleoptera: Rhynchitidae): With Notes On Its Biology In Northern Illinois, Sheila S. Kuritsky

Master's Theses

No abstract provided.


A Role For Androgens In Hcg-Induced Ovulation, David E. Stude Jan 1979

A Role For Androgens In Hcg-Induced Ovulation, David E. Stude

Master's Theses

No abstract provided.


The Gross Morphology Of The Central And Visceral Nervous Systems Of Haplorhynchites Aeneus (Boheman) (Coleptera: Curculionoidea: Rhynchitidae), Theresa Droste Jan 1979

The Gross Morphology Of The Central And Visceral Nervous Systems Of Haplorhynchites Aeneus (Boheman) (Coleptera: Curculionoidea: Rhynchitidae), Theresa Droste

Master's Theses

No abstract provided.


An Ultrastructural Study Of Intramuscular Melanocytes In Pet/Wmr Mice, Charles August Gomer Aug 1978

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 Aug 1978

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 Aug 1978

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 …


Distribution Of Etheostoma Nigrum Rafinesque, Etheostoma Olmstedi Storer, And Their Introgressive Hybrid Populations In The James River Drainage, John Edward Clark May 1978

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 …


Antipredative Function Of The Gelatinous Coating Of The Eggs Of The Frog, Rana Pipiens, Walter Stanley Jennings May 1978

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 …


Characterization Of The Nonfermentative Gram Negative Rods Of Group Iik Utilizing Biochemical, Serological, And Antibiotic Susceptibility Tests, Donna S. Granstrom Jan 1978

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.


Reactivity Of Antibodies Versus Streptococcal Carbohydrate And Protein Antigens And Human Glomerular Basement Membrane Carbohydrate And Protein Antigens In Mammalian Tissues, Kathleen A. Chase Jan 1978

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 Non-Teratogenic Effects In Mice Progeny By Maternal Treatment With Amygdalin, Victoria Ann Rowe Jan 1978

The Non-Teratogenic Effects In Mice Progeny By Maternal Treatment With Amygdalin, Victoria Ann Rowe

Master's Theses

No abstract provided.


A Study Of The Nymphal Stages Of Trichocorixa Verticalis Verticalis (Fieber) Under Laboratory Conditions, Sharon R. Raczynski Jan 1978

A Study Of The Nymphal Stages Of Trichocorixa Verticalis Verticalis (Fieber) Under Laboratory Conditions, Sharon R. Raczynski

Master's Theses

No abstract provided.


The Effect Of Isoproterenol And Alpha- And Beta-Adrenoreceptor Blockade On Renin Release And Cyclic-35́-Adenosine Monophosphate Content In Rat Renal Cortical Slices, Louis Michael Lissuzzo Jan 1978

The Effect Of Isoproterenol And Alpha- And Beta-Adrenoreceptor Blockade On Renin Release And Cyclic-35́-Adenosine Monophosphate Content In Rat Renal Cortical Slices, Louis Michael Lissuzzo

Master's Theses

No abstract provided.


Characterization Of Pseudomonas Cepacia Using Biochemical, Antibiotic Susceptibility And Serological Tests, Beatrice Grazina Miceika Jan 1978

Characterization Of Pseudomonas Cepacia Using Biochemical, Antibiotic Susceptibility And Serological Tests, Beatrice Grazina Miceika

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 Jan 1978

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.


The Effects Of Left Stellate Ganglion And Ventrolateral Cardiac Nerve Activity On Canine Av Nodal Electrophysiologic Properties, David Leon Fishman Jan 1978

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.


Aldehydic Transition State Analogue Inhibitors Of Α-Chymotrypsin, Alexandra Constance Cheerva Jan 1978

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 Jan 1978

Insulin And Altered Reticuloendothelial System Function, Angela M. Hadbavny

Master's Theses

No abstract provided.