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Articles 152851 - 152880 of 159536
Full-Text Articles in Entire DC Network
Verbena Halei Small, Peggy Hohertz
A Proposal For Renewable Resource Management In Long Island Sound, Oliver T. Edstrom
A Proposal For Renewable Resource Management In Long Island Sound, Oliver T. Edstrom
Marine Affairs Theses and Major Papers
In the United States, prior to Public Law 94-265, the Fishery Conservation and Management Act of 1976, regulation of the harvest of oceanic fishery stocks was complicated by the principles of common property resource laws founded by Grotius' dissertation on freedom of the seas. Public Law 94-265 vests ownership in the right to manage stock of fish within 200 miles of the United States' coast to the United States as trustee of that fishery resource. Within the framework of extended jurisdiction of fishery management, individual states in the republic keep and maintain control of fishery resources. within their respective territories.
Ua68/1 Forum, Wku Potter College Of Arts & Letters
Ua68/1 Forum, Wku Potter College Of Arts & Letters
WKU Administration Documents
WKU Potter College of Arts & Letters faculty newsletter regarding faculty research and publications. This issue includes:
- Mounce, Robert. As I See It - Fletcher Byrom
- Jackson, Carlton. History at Western Kentucky University: A Rationale
- Glaser, Joseph. Nature's Mystic Book: A Report from the New Biology
Ua77/1 Western Alumnus, Vol. 47, No. 4, Wku Alumni Relations
Ua77/1 Western Alumnus, Vol. 47, No. 4, Wku Alumni Relations
WKU Administration Documents
Quarterly magazine created for WKU alumni. Regular features are Hilltopics, Sports, Alumni Newsgrams and Notes and In Memoriam. This issue includes:
- Energy: Campus Conservation
- The Quilting Bee
- Old-Timers Take the Court
- Students and the Job Hunt
- Behind the Scenes
- Living and Learning Laboratories
- Rx for Ailing Indoor Plants
- Mardi Gras! ROTC on Parade
- Following the Yellow Brick Road
- Ford: Words of a President
- Photo Feature - President Downing
- Lights, Camera, Actioin!
Nepal Studies Association Bulletin, Nos. 12-13, Nepal Studies Association, Donald A. Messerschmidt
Nepal Studies Association Bulletin, Nos. 12-13, Nepal Studies Association, Donald A. Messerschmidt
Nepal Studies Association Newsletter
No abstract provided.
How Lignin, Hemicellulose, And Cellulose Affect The Properties Of Oxygen Versus Kraft Pulps, Jeff C. Pobanz
How Lignin, Hemicellulose, And Cellulose Affect The Properties Of Oxygen Versus Kraft Pulps, Jeff C. Pobanz
Paper Engineering Senior Theses
A batch of chips was subjected to an oxygen pulping and a kraft pulping system. The resulting pulp was tested in its unbleached condition. It was then bleached, tested again. Handsheets were tested using the Pulmac zero span tensile tester and other standard physical tests. The pulps were tested using the Pulmac permeability tester. This procedure gave the opportunity to look at how the differences between the individual fibers and their components affect the differences in the strength between oxygen and kraft pulp handsheets.
The oxygen pulp was severely degraded than was the kraft pulp. This led to shorter, weaker …
Bulletin 3990 - The Narrow-Leafed Lupin In Western Australia, J. S. Gladstones
Bulletin 3990 - The Narrow-Leafed Lupin In Western Australia, J. S. Gladstones
Bulletins - 3000 - 3999
Lupins are new as a commercial crop, but may be very old as a food plant. Types of the Mediterranean white lupin (Lupinus albus L.) have been part-developed and used as a subsistence crop for 3 000 years or more. Likewise the pearl lupin (L. mutabilis Sweet) has been grown for many centuries in the Andean Highlands of South America. In both cases the seeds are boiled and steeped in water for several days to rid them of their bitter, somewhat toxic alkaloids. They are then used directly as a valued protein source in human diets.
Agricultural Experiment Station News April 1977
Agricultural Experiment Station News April 1977
Agricultural Research Division: News and Annual Reports
CONTENTS:
FROM THE DIRECTOR'S DESK
PERSONNEL ACTIONS
GENERAL NOTES
GRANTS AND CONTRACTS
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - March 1977
BULLETINS PRINTED
Bulletin No 4007 - Grasses In South Western Australia, J G. Paterson
Bulletin No 4007 - Grasses In South Western Australia, J G. Paterson
Bulletins 4000 -
IThe grasses comprise one of the world's largest families of flowering plants, with over 500 groups or genera containing well over 5000 individual types or species distributed throughout the world. About 125 groups have been recorded in Western Australia but it is probable that the list is far from complete. About one third of these have ° been introduced from overseas.
The purpose of this bulletin is to describe those grasses which are more commonly found in the south-west of Western Australia. Also, as many people are interested in knowing the name and nature of a grass when they find …
Louisiana Agriculture Magazine, Spring 1977, Lsu Agricultural Experiment Station
Louisiana Agriculture Magazine, Spring 1977, Lsu Agricultural Experiment Station
Louisiana Agriculture
No abstract provided.
Environmental Interaction In Summer Algal Communities Of Utah Lake, Mark C. Whiting
Environmental Interaction In Summer Algal Communities Of Utah Lake, Mark C. Whiting
Theses and Dissertations
Utah Lake is a shallow eutrophic lake located in central Utah. It is characterized by high nutrient and silt loads and by large algal blooms in late summer and early fall. Phytoplankton samples and environmental data were taken from June through August 1974. Phytoplankton species were identified and then quantified in a Palmer counting cell. Environmental continuum theory was employed to describe algal succession and regression analysis was used to discover interactions between algal communities and the environment. Phytoplankton communities in June were characterized by high species diversity. As the lake environment became stressed in late summer due to higher …
Cytogenetic Test Of Captan And Triethylenemelamine In Mouse Bone Marrow, Stephen M. Fry
Cytogenetic Test Of Captan And Triethylenemelamine In Mouse Bone Marrow, Stephen M. Fry
Honors Theses
Following a single non-toxic i.p. injection with 0.5 or 1.0 mg triethylenemelamine/kig a significant increase in chromosome aberrations in mouse bone marrow was observed 6, 12, 30, but not 54 h after treatment. A single i.p. injection with 250 mg captan/kig caused up to 68% lethality above controls, but no significant increase in chromosome aberrations after the same time intervals. One metacentric chromosome was observed 6, 30, and 54 h after captan treatment among 300, 300, and 101 metaphase spreads respectively, whereas none appeared in 1495 control spreads.
Foliage Preference And Habitat Utilization By Migrating Warblers, John Calvin Stiner
Foliage Preference And Habitat Utilization By Migrating Warblers, John Calvin Stiner
Masters Theses
No abstract provided.
Accumulation And Metabolism Of Triphenyltin Hydroxide (Du-Ter) In Channel Catfish, Hal B. Jenson
Accumulation And Metabolism Of Triphenyltin Hydroxide (Du-Ter) In Channel Catfish, Hal B. Jenson
Theses and Dissertations
The fate of ring-14C labeled triphenyltin hydroxide was studied in a model ecosystem consisting of soiI, water, and channel catfish (Ictalurus punctatus). Two initial levels of triphenyltin hydroxide concentration in soiI, 1.0 and 0.010 ppm, were compared. The soiI showed a gradual loss of 20 to 30% of the total 14C residues. Only about 33% of the remaining soil residues could be extracted and almost all of these were triphenyltin hydroxide. Total residues in the water were very low. Catfish muscle and viscera accumulated 14C residues continually throughout the treatment portion of the experiment. When the catfish were transferred to …
Canopy Influence As A Factor In Determining Understory Community Composition, Richard B. Wilcox
Canopy Influence As A Factor In Determining Understory Community Composition, Richard B. Wilcox
Theses and Dissertations
Four tree species (i.e. Pinus ponderosa, Juiperus scopulorum, Quercus Gambelii, and Ceanothus velutinus were chosen for this study. Ten individuals of each species were selected and their associated understory communities and adjacent non-understory communities sampled. Data taken included biotic and abiotic parameters. The data was subjected to similarity index analysis, cluster analysis, discriminant analysis, and x^2 analysis. The results were confirmed by all tests. The forest canopy was shown to directly influence the understory community. The understory community is a shrub-grass dominated type while the non-understory community is an annual-forb dominated type. The different tree species were also shown to …
Partitioning Of Space And Time By The Western Jumping Mouse, Zapus Princeps Utahensis Hall, John M. Deacon
Partitioning Of Space And Time By The Western Jumping Mouse, Zapus Princeps Utahensis Hall, John M. Deacon
Theses and Dissertations
Intraspecific competition is important in determining habitat utilization by members of a single species. Effective use of habitat may involve partitioning the available resources: space, time and food among individuals of different age, sex, and/or reproductive state. Numerous publications deal with interspecific competition (McCloskey and Fieldwick 1975, Cody 1973, Rosenzweig 1973, Stewart and Levin 1973, Gaby 1972, Brown 1971, Koshkina 1971, Sheppe 1967, Caldwell and Gentry 1965, Cameron 1964, Clough 1964, Gause 1932), but little has been written on intraspecific competition among populations of organisms in nature.
Isolation, Purification, Scanning Electron Microscopy And Bacterial Dna Uptake Of Plant Protoplasts, Bronwyn G. Hughes
Isolation, Purification, Scanning Electron Microscopy And Bacterial Dna Uptake Of Plant Protoplasts, Bronwyn G. Hughes
Theses and Dissertations
Protoplasts were isolated from tobacco and barley leaves in sucrose or mannitol using commercially available cellulases and macerozymes. Barley growth and protoplast isolation and purification conditions were optimized so that protoplasts were obtained in high yields free of unwanted debris and organelles. A technique for processing barley and tobacco protoplasts for examination by scanning electron microscopy was developed in which protoplasts seem to have maintained their structural integrity. Barley and tobacco protoplasts took up 3H-B. subtilis DNA, 125I-B. subtilis DNA or 125I-M. luteus DNA as a linear function of time (0-6 hr) and DNA concentration (0-200 μg/ml). Up to 16 …
The Immunizing Potential Of Sporulated Oocysts Of Eimeria Nieschulzi Exposed To Heat And Co-60 Gamma-Radiation, George A. Conder, Donald W. Duszynski
The Immunizing Potential Of Sporulated Oocysts Of Eimeria Nieschulzi Exposed To Heat And Co-60 Gamma-Radiation, George A. Conder, Donald W. Duszynski
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Sporulated oocysts of Eimeria nieschulzi Dieben 1924, a rat coccidium, were exposed to radiation, heat, or both in an effort to attenuate the parasite. Moderate levels of each treatment or combination thereof attenuated the parasite, reduced pathogenesis (as judged by oocyst discharge during primary infection), and produced immunity to challenge when the oocysts were subsequently inoculated into rats. Thus, heat- and/or radiation-treated E. nieschulzi oocysts fed to rats could reduce pathogenesis during a primary infection and yet give good homologous protection.
Behavioral Aspects Of Southwest Michigan Opilionids, Wolfgang C. Schroeter
Behavioral Aspects Of Southwest Michigan Opilionids, Wolfgang C. Schroeter
Masters Theses
Introduction
Opilionids (Arachnida: Opiliones) are arachnids that have such descriptive common names as harvestmen or daddy longlegs. In the summer and early autumn opilionids become a conspicuous component of the invertebrate fauna; however, as common as these animals are, little attention has been paid to their behavior. Most published research on opilionids deals with their taxonomy.
The intraspecific interactions of opilionids is a significant area or ethology that needs careful examination. Intraspecific interactions fall into three categories reproductive, aggressive, and cooperative behaviors. A knowledge of the reproductive behavior of opilionids is essential for a complete picture or the evolution of …
A Bioassay Study Of Portage Creek Using Tetrahymena Pyriformis As An Indicator Organism, George T. Mimidis
A Bioassay Study Of Portage Creek Using Tetrahymena Pyriformis As An Indicator Organism, George T. Mimidis
Masters Theses
No abstract provided.
The Limnetic Zooplankton Community Of Boulder Basin, Lake Mead In Relation To The Metalimnetic Oxygen Minimum, Thomas A. Burke
The Limnetic Zooplankton Community Of Boulder Basin, Lake Mead In Relation To The Metalimnetic Oxygen Minimum, Thomas A. Burke
Publications (WR)
The limnetic zooplankton community of Boulder Basin, Lake Mead, was examined to determine the role of this community in the development of a metalimnetic oxygen minimum which regularly occurs in the lake. Analysis of the community from May 1975 to April 1976 revealed that zooplankton maintain high populations within the metalimnion during summer stratification. The species composition of the community changes noticeably during the summer, but due to advanced stages excysting from resting forms, a complete assemblage of individuals are found throughout the 74 day period studied. Thermal stratification was weak, covering a 30 meter metalimnion. Eddy currents powered by …
Effect Of Nitrite And Nitrate On The Larval Development Of The Grass Shrimp Palaemonetes Pugio Holthuis, Carl Bingham Hinesman
Effect Of Nitrite And Nitrate On The Larval Development Of The Grass Shrimp Palaemonetes Pugio Holthuis, Carl Bingham Hinesman
OES Theses and Dissertations
The effects of nitrite and nitrate on survival and larval development of the grass shrimp Palaemonetes pugio were investigated in the laboratory. Nitrite concentrations assayed were 0 (control), 0.5, 1.0, 10, 25 and 50 mg NO2/1. Nitrate concentrations tested were 0 (control), 100, 250, 500, 1000 and 2000 mg NO3/1. Temperature and salinity conditions were 25 C and 25 ‰, respectively, and all tests occurred in the dark. Thirty-six larvae were reared in each assay, twelve from each of three adult females.
Nitrite levels of'5 and 50 mg NO2/1 significantly reduced survival of larvae …
A Baseline Study On The Possible Mechanisms Of Larval Stomatopod Distribution On The Carolina Shelf, Carl Robert Berman Jr.
A Baseline Study On The Possible Mechanisms Of Larval Stomatopod Distribution On The Carolina Shelf, Carl Robert Berman Jr.
OES Theses and Dissertations
The South Carolina Marine Resources Institute provided the author with 198 station samples containing 2,193 stomatopod larvae. These larvae had been collected during ichthyoplankton Bongo tows on five separate cruises aboard the Institute's vessel R/V DOLPHIN (February, 1972 to January, 1975). The larvae were examined microscopically and divided into early, middle, and late stages according to known growth criteria. The larval distribution was plotted geographically, by seasons, and larval density (larvae/m3) was graphed against distance offshore. Using these data, together with the circulation characteristics on the Carolina Shelf, significant distributional data appeared which supported the hypothesis that the stomatopod population …
Temperature And Salinity Tolerance Of The Larvae Of The Sand Shrimp, Crangon Septemspinosa (Say), Karen Lyttle Hinsman
Temperature And Salinity Tolerance Of The Larvae Of The Sand Shrimp, Crangon Septemspinosa (Say), Karen Lyttle Hinsman
OES Theses and Dissertations
The effects of temperature and salinity on the larval development of the sand shrimp, Crangon septemspinosa, were investigated in the laboratory using 30 combinations of temperature and salinity in a five by six factorial experiment. The five temperatures were 5°c, 10°c, 15°c, 20°c, and 25°c and the six salinities were 10°/oo, 15°/oo, 20°/oo, 25°/oo, 30°/oo and 35°/oo. Thirty-six larvae were used for each temperature-salinity combination. Temperature and salinity produced significant differences (1% level) in survival and the duration of larval development. Highest survival occurred at 15°c and 20°/oo. At optimum temperatures (15°c to 20°c) larvae exhibited the broadest tolerance …
Verbena Halei Small, Mary Ann Jones
The Influence Of Predator Control On Two Adjacent Wintering Deer Herds, Dennis D. Austin, Philip J. Urness, Michael L. Wolfe
The Influence Of Predator Control On Two Adjacent Wintering Deer Herds, Dennis D. Austin, Philip J. Urness, Michael L. Wolfe
Aspen Bibliography
An unknown number of deer are continually killed on summer and winter ranges by predators, and in at least some locations these losses are significant.
1977 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University
1977 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University
Little International "Little I" Agricultural Exposition Catalogs
No abstract provided.
A Study Of Bronchial Clearance In The Syrian Hamster Using Tantalum Bronchography, David Joseph Velasquez
A Study Of Bronchial Clearance In The Syrian Hamster Using Tantalum Bronchography, David Joseph Velasquez
Biology ETDs
A technique using simultaneous bilateral radiographic exposures of the bronchial tree of Syrian hamsters was used to examine clearance patterns of tantalum powder, an inert radiopaque substance. The tantalum powder, nominally 2.5 µm diameter particle size, was insufflated in small amounts ranging from 6 mg to 344 mg into the lungs of 10 animals. In most cases the major bronchi of the lungs were well outlined with tantalum initially, as were several medium and small bronchi. The clearance of the tantalum was noted by making simultaneous radiographic exposures from two directions at exponentially increasing time intervals. Exposures were begun within …
Cytosol Binding Of Steroid Hormones In Sheep Brains And Pituitaries, David Carl Marcusen
Cytosol Binding Of Steroid Hormones In Sheep Brains And Pituitaries, David Carl Marcusen
Theses and Dissertations
The uptake and binding of tritiated cortisol, corticosterone, and dexamethasone in cytosols isolated from various regions of non-adrenalectomized (intact) and adrenalectomized sheep brains and pituitaries were studied. [3H]-cortisol and [3H]-corticosterone were bound preferentially by cytosols from the hippocampal and septal regions of the brain, whereas, [3H]-dexamethasone was preferentially bound by cytosol from the pituitary. Cytosols isolated from the brains of adrenalectomized sheep bound significantly more [3H]-corticosterone than did cytosol from the brains of intact animals. Pre-incubation of cytosols from the hippocampus of adrenalectomized animals with non-radioactive testosterone or estradiol did not significantly block the subsequent binding of [3H]-cortisol. Results of …
Anagallis Arvensis L., Donna Hobbs