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Articles 49441 - 49470 of 52511
Full-Text Articles in Entire DC Network
The Blm Planning Process: Chasing The Rabbit, H. Paul Friesema, Paul J. Culhane
The Blm Planning Process: Chasing The Rabbit, H. Paul Friesema, Paul J. Culhane
The Federal Land Policy and Management Act (Summer Conference, June 6-8)
11 pages.
State And Local Involvement In Bureau Of Land Management Planning Under The Federal Land Policy Act Of 1976, Tom Glass
The Federal Land Policy and Management Act (Summer Conference, June 6-8)
8 pages.
Santa Clara Magazine, Volume 26 Number 8, Summer 1984, Santa Clara University
Santa Clara Magazine, Volume 26 Number 8, Summer 1984, Santa Clara University
Santa Clara Magazine
2 - ALBEE'S ST. GEORGE AND THE DRAGON By Michael Tueth, S.J. Some principles of archetypal criticism are applied to Albee's Who's Afraid of Virginia Woolf?
7 - NUCLEAR ADDICTION Edmund G. Brown Jr. The United States and the Soviet Union are engaged in an addictive and ultimately lethal process. Neither will break out of the curse of assured mutual destruction.
9 - GIVE US THIS DAY OUR DAILY BREAD By Charles E. French. There are good reasons today to hope for a solution to world hunger, one that will occur in our time.
13 - TRAITS OF A HEALTHY …
The Prairie Naturalist Volume 16, No. 2. June 1984
The Prairie Naturalist Volume 16, No. 2. June 1984
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Sea bloom , Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
AUTUMN WEIGHTS OF PLAINS SHARP-TAILED GROUSE IN MONTANA ▪ J. E. Swenson and R. L. Eng
VEGETATION PROFILE AND GRASSLAND BIRD RESPONSE TO SPRING BURNING ▪ G. E. Huber and A. A. Steuter
WETLAND PRESERVATION CONFLICTS IN NORTH DAKOTA: ECONOMIC INCENTIVES AND LANDOWNER ATTITUDES ▪ R. D. Saylor, R. A. Stromstad and M. E. Winger
COLLEMBOLA OF SOUTHWESTERN NORTH DAKOTA: SPECIES COMPOSITION AND HABITAT DISTRIBUTION ▪ B. L. Benner and P. B. Kannowski
NEW RECORDS OF EARTHWORMS FROM KANSAS (Oligochaeta: …
The Effect Of Dietary Alpha - Linolenic Acid On Apparent Risk Factors Of Cardiovascular Disease, Kelvin D. Lindbeck
The Effect Of Dietary Alpha - Linolenic Acid On Apparent Risk Factors Of Cardiovascular Disease, Kelvin D. Lindbeck
Loma Linda University Electronic Theses, Dissertations & Projects
Eight healthy male lacto-ovo-vegetarian subjects averaging 28.0 ± 3.6 years of age (22 to 53 years) were fed a diet rich in α-linolenic acid (18:3 ω 3) for four weeks. Arterial blood pressure and body weight were recorded each week. Plasma 6-keto-prostaglandin F1α (6-keto- PGF1α ), thromboxane B2 (TXB2), total cholesterol, triglyceride, and total phospholipid fatty acid composition were analyzed at 0, 2 and 4 weeks.
Systolic blood pressure increased significantly between weeks 0 and 1 (106.5 ± 2.7 mmHg to 114.0 ± 3.7 mmHg; p < 0.003), but decreased to 107.3 t 2.6 mrHg (p < 0.02) at week 2. There was an insignificant increase in both systolic and diastolic blood pressures after four weeks. There was no significant change in either total cholesterol or triglyceride levels during the four weeks.
Plasma 6-keto-PGF1α levels increased significantly from 60.13 ± …
Sunlight And Plants, Some Pursuits In Physiological Ecology, Martyn M. Caldwell
Sunlight And Plants, Some Pursuits In Physiological Ecology, Martyn M. Caldwell
Faculty Honor Lectures
A physiological ecologist, as the name suggests, focuses on the interface between plant physiology and the ecology of individual organisms. Yet, one in this field should know something about disciplines ranging from physiology, or in the case of the subject of this lecture, even photochemistry, to the study of entire ecosystems.
A Bacteriological And Chemical Analysis Of Nonpoint Source Pollution In A Karst Aquifer Bowling Green, Kentucky, Wayne Green
A Bacteriological And Chemical Analysis Of Nonpoint Source Pollution In A Karst Aquifer Bowling Green, Kentucky, Wayne Green
Masters Theses & Specialist Projects
Monthly water samples collected from four sites in the Lost River Groundwater Basin, a shallow karst aquifer in the Bowling Green-Warren County area of Kentucky, represented samples from sites receiving conduit and diffuse flow. All sites were severely contaminated with bacteria, and on some occasions the surface water criteria for some heavy metals were exceeded.
Of the total 334 bacterial colonies identified 92.1% were verified as Escherichia coli by the API20E system. Acinetobacter calcoaceticus var. anitratum accounted for 2.10% of colonies; Citrobacter freundii for 0.30% Klebsiella pneumoniae for 0.90%; Klebsiella oxytoca, 0.90%; Citrobacter amalonaticus 0.30%; Enterobacter cloacae, 1.20%; …
Discovery Of A Majid Host For The Commensal Amphipod Stenothoe Symbiotica Shoemaker, 1956, James Darwin Thomas, Kalani D. Cairns
Discovery Of A Majid Host For The Commensal Amphipod Stenothoe Symbiotica Shoemaker, 1956, James Darwin Thomas, Kalani D. Cairns
Marine & Environmental Sciences Faculty Articles
No abstract provided.
Seasonal And Spatial Heterogeneity In The Limnetic Zooplankton Community Of Lake Mead, Gene Robert Wilde
Seasonal And Spatial Heterogeneity In The Limnetic Zooplankton Community Of Lake Mead, Gene Robert Wilde
Publications (WR)
Zooplankton samples collected from throughout Lake Mead, in 1981-1982, demonstrate the presence of a statistically significant seasonal and spatial heterogeneity in zooplankton densities. Seasonally, the major zooplankton groups were most abundant in the spring and fall, coincident with maxima in chlorophyll-a concentrations. Successions among the various rotifers, cladocerans and copepods present in the reservoir were influenced by food availability, diapause, predation by planktivorous fish and, possibly, water temperatures. Spatial heterogeneity in zooplankton densities was unrelated to water temperature, pH, conductivity and dissolved oxygen concentrations, but was related to the abundance of phytoplankton (chlorophyll-a concentrations) and fish. Statistical analyses indicate that …
The Role Of Nannoplankton In The Phytoplankton Dynamics Of Four Colorado River Reservoirs (Lakes Powell, Mead, Mohave, And Havasu), Jeffrey John Janik
The Role Of Nannoplankton In The Phytoplankton Dynamics Of Four Colorado River Reservoirs (Lakes Powell, Mead, Mohave, And Havasu), Jeffrey John Janik
Publications (WR)
Phytoplankton species composition and community size structure were studied in four warm-monomictic Colorado River reservoirs; lakes Powell, Mead, Mohave, and Havasu from March 1981 to February 1982. Sampling was done at approximately monthly intervals from several stations in each reservoir. The Utermohl technique was used to enumerate phytoplankton. The phytoplankton assemblage was divided into the following six size classes using microscopic techniques; netplankton (>64 um), and nannoplankton (>5, 5-11, 12-21, 22-44, and 45-64 um).
Total phytoplankton biomass and community size structure were different among these four reservoirs with considerable spatial and temporal variation present. Average reservoir-wide areal weighted …
Effects Of Adrenalectomy On Hemoconcentration And Blood Ph, Urea And Electrolytes In The Mongolian Gerbil (Meriones Unguiculatus), Magally Aellos De Cova
Effects Of Adrenalectomy On Hemoconcentration And Blood Ph, Urea And Electrolytes In The Mongolian Gerbil (Meriones Unguiculatus), Magally Aellos De Cova
Master's Theses
The effects of adrenalectomy on some blood profiles of the Mongolian gerbil, Meriones unguiculatus, were studied in order to clarify the possible causes of its short survival after adrenal ablation. Measurements of hematocrit, pH, urea and electrolytes were made 18, 24 and 30 hours after surgery. Results show the expected alterations: hemoconcentration, metabolic acidosis, high values of urea and disturbances in electrolytes. While hyponatremia was significant only after 24 hours, important hypochloremia was not present at any time. Hyperkalemia was the most significant alteration observed. It occurred as early as 18 hours after surgery, suggesting that it may be an …
Photoaffinity Labeling Of The Antimycin Binding Site In Rhodopseudomonas Sphaeroides, Emily Wilson
Photoaffinity Labeling Of The Antimycin Binding Site In Rhodopseudomonas Sphaeroides, Emily Wilson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The purpose of this study was to identify the site of interaction of antimycin with the ubiquinone-cytochrome b-c1 oxidoreductase in the photosynthetic bacteria, Rhodopseudomonas sphaeroides. To accomplish this goal, three areas of research were undertaken: the synthesis of a radiolabeled, photoaffinity analog of antimycin, identification of the inhibitory characteristics of this analog, and the photoaffinity labeling of the antimycin binding site. All three areas were accomplished.
The major finding of this study was the identification of an 11,000 dalton polypeptide as the predominantly labeled protein. Although this polypeptide was not exclusively labeled, it was consistently labeled and showed competition …
The Hellbender, Cryptobranchus Alleganiensis, In Indiana, William H. Kern Jr.
The Hellbender, Cryptobranchus Alleganiensis, In Indiana, William H. Kern Jr.
All-Inclusive List of Electronic Theses and Dissertations
Very 1 ittle was previously known ubout the Hellbender, Crrp:t:£branchus alleganiensis alleganiensis, in Indiana. The purpose of this study was to determine its current range and status in Indiana and collect life history information. The hell benders were captured by hand from under rocks and 1d th hoopnets baited with cut fish. They were tagged, measured, wei~hed, examined for large external parasites, wounds, and reproductive cond:i - tion. Stoma ch contents were taken with a non-lethal, stomach-flushfog technique. The animals were then released at the site of capture. Al though they were originally found in the Ohio River, \\'hi tewater …
Effect Of Physiological Age On Radiation Resistance Of Some Bacteria That Are Highly Radiation Resistant, Lewis Keller, R. Burt Maxcy
Effect Of Physiological Age On Radiation Resistance Of Some Bacteria That Are Highly Radiation Resistant, Lewis Keller, R. Burt Maxcy
Department of Food Science and Technology: Faculty Publications
Physiological age-dependent variation in radiation resistance was studied for three bacteria that are highly radiation resistant: Micrococcus radiodurans, Micrococcus sp. isolate C-3, and Moraxella sp. isolate 4. Stationary-phase cultures of M. radiodurans and isolate C-3 were much more resistant to gamma radiation than were log-phase cultures. This pattern of relative resistance was reversed for isolate 4. Resistance of isolate 4 to UV light was also greater during log phase, although heat resistance and NaCl tolerance after heat stress were greater during stationary phase. Radiation-induced injury of isolate 4 compared with injury of Escherichia coli B suggested that the injury process, …
Range Beef Cattle Productivity In Southern Utah, Mouslim A. Maiga
Range Beef Cattle Productivity In Southern Utah, Mouslim A. Maiga
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Twenty-six range beef cattle ranches in southern Utah were surveyed by personal interview to obtain production data. The data were used to characterize the level of production efficiency in terms of calving rate, weaning rate, weaning weight, and net weaning weight in these operations; and to identify factors associated with differences in productivity.
The data revealed that productive efficiency was generally lower than the potential.
Mean calving rate of cows exposed for breeding was 83.4%. Stepwise regression involving calf death losses at or shortly after birth and heifer replacement rate accounted for 98.3% of the variance in calving rate. Calving …
Effect Of Casein/Fat Ratio On Milk Fat Recovery In Cheddar Cheese, Nana A. Yiadom-Farkye
Effect Of Casein/Fat Ratio On Milk Fat Recovery In Cheddar Cheese, Nana A. Yiadom-Farkye
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Cheddar cheese was made by the traditional 4.5-h method from three experimental lots of milk, each standardized to casein/fat ratios of approximately 0.64, 0.67 and 0.70. The effect of casein/fat ratio on milk fat recovery was determined. The effects of milk composition on curd firmness at cutting, cheese composition and resulting yield of cheese were evaluated. Correlations between milk constituents and various cheese components were obtained. Milk fat recovery was unaffected by casein/fat ratios within the limits of 0.64 and 0.71. Average milk fat recovery was 91.58 ± 1.73%. Cheese yield was a function of milk protein, milk fat and …
The Relationship Of Ewe Body Mass To Lamb Production, Sebhatu Gebrelul
The Relationship Of Ewe Body Mass To Lamb Production, Sebhatu Gebrelul
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Body size was estimated by multiplying the average of the hip and chest widths by body length and chest depth in 208 ewes of three genotypes: Targhee x Targhee (TXT), Finn x Targhee (FXT), and Suffolk x Targhee (SXT), and two seasons, fall (pre-breeding) and spring (post-lambing). The estimated ewe body size did not fluctuate with season, body condition or physiological stress and proved to be a constant measure of size. Measuring linear body dimension is time consuming; and hence ewe body size can best be approximated by the chest depth in a regression equation. In the absence of linear …
Chemical Composition And Acceptability Of Rain Damaged, Field Dried Alfalfa Hay, Cesar Augusto Araque H.
Chemical Composition And Acceptability Of Rain Damaged, Field Dried Alfalfa Hay, Cesar Augusto Araque H.
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Water was applied to swaths of cut alfalfa forage with oscillating sprinklers to stimulate rain damage to field drying alfalfa hay to determine the changes in chemical composition, loss of yield, and acceptability of rain damaged hay to sheep. An additional objective was to develop models to estimate yield losses form experimental hay. The experimental hay was prepared with a 2x2x4x4x2 factorial design. The factors were two different cuttings (July and September), two width of swath (3.05 m and 4.27 m), four times of applying artificial rain (3h, 8h, 13h, and 24h after cutting), four levels of artificial rain (no …
Comparisons Of Snow Deposition, Soil Temperature, Matric Potential And Quasi-Friction Velocity Between A Windward Site And A Lee Shelter In A Cold Desert, Harvey L. Neuber
Comparisons Of Snow Deposition, Soil Temperature, Matric Potential And Quasi-Friction Velocity Between A Windward Site And A Lee Shelter In A Cold Desert, Harvey L. Neuber
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Regimes of snow depth, soil temperature, soil matric potential and quasi-friction velocity in a windward site and a lee shelter were examined. The differences were analyzed from a biological perspective to characterize each location in terms of site favorability to plant growth. The chronology of wind and precipitation events was investigated.
Snow depth was measured with a system of stakes arranged around and in the interior of a rectangular plot encompassing both a windward site and a lee shelter. Soil temperature, soil matric potential and water potential were measured along a transect which originated in the windward site and terminated …
Dynamics Of Arid-Land, Perennial Plant Populations With An Examination Of Potential Causal Agents, Henry George Gardiner
Dynamics Of Arid-Land, Perennial Plant Populations With An Examination Of Potential Causal Agents, Henry George Gardiner
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Rigorous statistical examination of the population dynamics of a number of long-lived perennial plant species permitted an interpretation of changes in those populations and the establishment of potentially important causal agents. Survival and recruitment of six species from the mulga-zone rangelands of Western Australia varied across three climatically different periods following the removal of domestic livestock.
Two species' populations (Eragrostis xerophila and Maireana glomerifolia) had their rates of increase reduced by kangaroo and euro grazing. Both survival and recruitment of Eragrostis xerophila were reduced by this grazing while Maireana glomerifolia suffered reduced recruitment during all periods. These negative …
Program Abstracts, 96th Session, Iowa Academy Of Science, April 27-28 1984, Iowa Academy Of Science
Program Abstracts, 96th Session, Iowa Academy Of Science, April 27-28 1984, Iowa Academy Of Science
Iowa Academy of Science Documents
Presentation abstracts from the annual meeting of the Iowa Academy of Science
The Annual Meeting Of The Iowa Academy Of Science April 27-28, 1984 [Program, 96th Meeting], Iowa Academy Of Science
The Annual Meeting Of The Iowa Academy Of Science April 27-28, 1984 [Program, 96th Meeting], Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
Characterization Of A High Solids Tio2 – Dispersant System At High Rates Of Shear, Stephen R. Holmes
Characterization Of A High Solids Tio2 – Dispersant System At High Rates Of Shear, Stephen R. Holmes
Paper Engineering Senior Theses
The objective of this research was to study rheograms of high solids titanium dioxide dispersions at different dispersant levels. Viscometric measurements were collected with a Hercules High-Shear Viscometer. Viscosity was calculated using the initial slope of the increasing shear rate flow curve from the rheogram. This technique was incorporated to calculate viscosity in the laminar reagion up to the critical shear rate, where flow instability was expected to develop according to Taylor vortical flow calculations. The dispersant levels (dispex) were varied based on grams of titanium dioxide at varying percent solids levels. The results were evaluated according to a two-phase …
Fundy Tidal Power Development : Preliminary Evaluation Of Its Environmental Consequences To The Resources Of The State Of Maine, Bigelow Laboratory For Ocean Sciences
Fundy Tidal Power Development : Preliminary Evaluation Of Its Environmental Consequences To The Resources Of The State Of Maine, Bigelow Laboratory For Ocean Sciences
Maine Collection
Fundy Tidal Power Development : Preliminary Evaluation of Its Environmental Consequences to the Resources of the State of Maine
A Report to the Maine State Planning Office by the Bigelow Laboratory for Ocean Sciences, April, 1984.
"Technical Report No. 35 - Bigelow Laboratory for Ocean Sciences, West Boothbay Harbor, Maine - A Division of Northeastern Research Foundation, Inc."
Contents: Executive Summary / Introduction / Methods / Physical and Biological Consequences / Socio-Economic Consequences / Research Needs / Bibliography / Appendix I. Written Comments on Greenberg Model
Book Review Forum On Derek Freeman's Margaret Mead And Samoa: The Making And Unmaking Of An Anthropological Myth, Fay Ala‘Ilima, Tuaopepe Felix S. Wendt, Nancy Mcdowell
Book Review Forum On Derek Freeman's Margaret Mead And Samoa: The Making And Unmaking Of An Anthropological Myth, Fay Ala‘Ilima, Tuaopepe Felix S. Wendt, Nancy Mcdowell
Pacific Studies
No abstract provided.
Timing Of The Blue Crab Fisheries Of Virginia And Its Application To Harvest Management, J. Dale Shively
Timing Of The Blue Crab Fisheries Of Virginia And Its Application To Harvest Management, J. Dale Shively
OES Theses and Dissertations
The timing of a fishery is a quantitative expression of the composite behaviors of harvesters, markets, animals and climatic events. A quantitative description of the timing of the blue crab (Callinectes sapidus) fisheries of Virginia was established using the time density model of Mundy (1979). Blue crab catch statistics supplied by the National Marine Fisheries Service and the Virginia Marine Resource Commission were divided into two fisheries based on gear type; the summer and winter fisheries. Average performance curves were then constructed using average cumulative proportions of catch. Annual yield estimates were also made and timing in five …
Determinants For The Timing Of Escapement From The Sockeye Salmon Fishery Of The Copper River, Alaska: A Simulation Model, Howard A. Schaller
Determinants For The Timing Of Escapement From The Sockeye Salmon Fishery Of The Copper River, Alaska: A Simulation Model, Howard A. Schaller
OES Theses and Dissertations
A model to estimate determinants for migratory timing of catch and escapement in a terminal salmon fishery is presented. A method was developed to estimate average seasonal migration rates of salmon through a harvest area from catch and escapement data. The time series for the total population of Copper River sockeye salmon (Oncorhynchus nerka) was reconstructed in the reference frame of the commercial harvest area from catch and escapement data.
The catchability coefficients (q), derived from the reconstructed populations were found to vary within season and between seasons. The relation between q and effort was attributed to a …
Phytoplankton Ecology And Dynamics In The James River Estuary Virginia, U. S. A., Margaret J. Filardo
Phytoplankton Ecology And Dynamics In The James River Estuary Virginia, U. S. A., Margaret J. Filardo
OES Theses and Dissertations
Autotrophic biomass and productivity as well as nutrient distributions and phytoplankton cell populations in the James River estuary, Virginia, from Newport News Shipyard to the 0 o/oo isohaline, were sampled on a monthly basis from August of 1981 to December of 1982. Particular emphasis was placed on the very low salinity region (defined as the location where surface salinity measured between 0.0 and 0.75 o/oo based on conductivity) in order to determine the fate of fresh water phytoplankters upon being advected into the estuary because of their suspected role in the biogeochemical cycling that occurs there.
Both chlorophyll a and …
An Examination Of The Variability Of Migratory Timing Statistics Estimated From Catch And Effort Observations, Arthur J. Butt
An Examination Of The Variability Of Migratory Timing Statistics Estimated From Catch And Effort Observations, Arthur J. Butt
OES Theses and Dissertations
The estimate of the mean arrival time based on catch or CPUE of fishes migrating into a fixed harvest area is a function of the number of days fished. Simulation studies using chinook salmon catch and effort data from the Yukon River delta, Alaska indicate that fishing effort concentrated at the tails of the migratory distribution which would tend to erroneously weigh the estimated mean arrival time in the direction of the sample, away from the true mean, is only a significant problem when the number of days open to fishing is small, covering less than 12% of the total …
A Description And Analysis Of The Timing Of Virginia's Weakfish Fishery, Bruce William Hill
A Description And Analysis Of The Timing Of Virginia's Weakfish Fishery, Bruce William Hill
OES Theses and Dissertations
The seasonality of Virginia's weakfish fishery is quantitatively defined by providing a mean time of catch and variance of catch for the years 1960 - 1981. On the average. the central half of the population is available for harvest from mid-May through September in all of Virginia's waters and the mean date of harvest is July 20th • The 22 year average variance of catch for Virginia's waters is 3.97. In Virginia's Chesapeake Bay tributaries the mean date of harvest is July 17th and the 22 year average variance of catch is 2.50. There is evidence for an inverse relationship …