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Articles 74851 - 74880 of 78652
Full-Text Articles in Entire DC Network
Characterization Of Trihalomethane Formation From Proteins In Chlorinated Water, Robert Aaron Kravitz
Characterization Of Trihalomethane Formation From Proteins In Chlorinated Water, Robert Aaron Kravitz
Chemistry & Biochemistry Theses & Dissertations
Traditionally humates have been considered the most significant precursor in the formation of trihalomethanes in finished drinking water. This study investigates another potential precursor, namely proteins. The chlorination of aqueous protein solutions yields significant levels of trihalomethanes in terms of the maximum contaminant level (MCL) of 0.100 mg/L imposed by the USEPA. Molar yields for several proteins were determined. The average yield per unit of organic carbon was 0.5% as compared to 0.8% for a humic acid studied. A model protein, bovine serum albumin, was studied extensively to ascertain the effects of total organic carbon, chlorine dose, and time on …
Fourier Series Analysis Of The Relationship Of Morphologic Variations And Bathymetry In Recent Bolivina (Foraminiferida) From The Northwestern Gulf Of Mexico, Anthony Cavedo Gary
Fourier Series Analysis Of The Relationship Of Morphologic Variations And Bathymetry In Recent Bolivina (Foraminiferida) From The Northwestern Gulf Of Mexico, Anthony Cavedo Gary
OES Theses and Dissertations
Automated video digitization and closed-form Fourier series analysis were used to investigate the applicability of benthic foraminiferal test morphology for paleo-bathymetric/paleoenvironmental reconstructions. Sample relationships and harmonics with the greatest power for discriminating between samples were determined using canonical discriminant analysis. Samples were eleven short cores obtained from the northwestern Gulf of Mexico. Three species of Bolivina were analyzed, B. albatrossi, B. lowmani, and B. subspinescens.
Results show populations of Bolivina albatrossi from the upper bathyal and upper-middle bathyal zones to have more triangular tests and lobulate chambers than lower-middle and lower bathyal zone populations. Specimens of Bolivina subspinescens …
Wetlands Preservation And The Protection Of Endangered Species As Limits On Western Water Development, A. Dan Tarlock
Wetlands Preservation And The Protection Of Endangered Species As Limits On Western Water Development, A. Dan Tarlock
The Federal Impact on State Water Rights (Summer Conference, June 11-13)
25 pages.
Panel: Section 404 Of The Clean Water Act And Section 7 Of The Endangered Species Act: Potential Impacts On Water Supplies [Supplemental Materials], Wendy C. Weiss
The Federal Impact on State Water Rights (Summer Conference, June 11-13)
57 pages.
Supplemental materials. Includes text of Riverside Irrigation District v. Andrews, 568 F.Supp 563 and Opening Brief of Plaintiff-Intervenor-Appellants in Riverside Irrigation District v. Andrews, Cases No. 83-2114, 83-2115, 83-2119, 83-2230, April 3, 1984.
Effects Of The Clean Water Act On Water Availability And Development, Paula C. Phillips
Effects Of The Clean Water Act On Water Availability And Development, Paula C. Phillips
The Federal Impact on State Water Rights (Summer Conference, June 11-13)
12 pages.
Developments In Federal Water Policies And Programs, Harold W. Furman Ii
Developments In Federal Water Policies And Programs, Harold W. Furman Ii
The Federal Impact on State Water Rights (Summer Conference, June 11-13)
14 pages.
Flpma, Pria, And The Western Livestock Industry, George Cameron Coggins
Flpma, Pria, And The Western Livestock Industry, George Cameron Coggins
The Federal Land Policy and Management Act (Summer Conference, June 6-8)
32 pages.
Contains list of research sources (pages 1-3).
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.
Alternating Current Studies And Kinetic Analysis Of Valinomycin Mediated Charge-Transport Through Lipid Bilayer Membranes, Kenneth Lee Cox
Alternating Current Studies And Kinetic Analysis Of Valinomycin Mediated Charge-Transport Through Lipid Bilayer Membranes, Kenneth Lee Cox
Dissertations and Theses
In this study we have investigated the frequency dependence of bilayer lipid membranes for a series of glycerylmonoolein/n-decane bilayers in various aqueous ionic solutions containing the ionophore valinomycin. Reliable values of membrane capacitance and conductance were obtained over the frequency range 0.2 - 200 KHz using an automatic balancing bridge under the control of a microprocessor unit. The admittance data was then normalized and curve-fitted to produce relaxation times and amplitudes from which the kinetic rate parameters, as deduced from a single slab dielectric membrane model, were calculated. These ac experimental rate constants were then compared with those obtained from …
Magnetic Guidance Of Organisms, Richard B. Frankel
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: …
Third Molar Eruption Prediction, Michael L. Jacobsen
Third Molar Eruption Prediction, Michael L. Jacobsen
Loma Linda University Electronic Theses, Dissertations & Projects
The diagnosis and treatment of third molars has often been cited as a special problem to the orthodontist. If the prognosis of third molars could be determined, orthodontic treatment could progress on a more positive basis.
This study was designed to provide a method of deciding whether developing third molars will erupt or become impacted.
Records from 130 orthodontically treated cases of Dr. Fredsall8 were studied. Several factors were evaluated and measured using the patients' cephalometric radiographs.
The actual fate of the third molars were recorded in the hope it could be used to predict what to expect from …
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 ± …
Derivatives Of Trifluorovinylsulfur Pentafluoride And F-(Tert-Butyl) Hypochlorite, Jo Ann Marie Canich
Derivatives Of Trifluorovinylsulfur Pentafluoride And F-(Tert-Butyl) Hypochlorite, Jo Ann Marie Canich
Dissertations and Theses
Trifluorovinylsulfur pentafluoride dimerizes to (SF5CFCF2)2 in the presence of cesium fluoride. Two derivatives of trifluorovinylsulfur pentafluoride, SF5CF(CF3)C(O)F and SF5CF(CF3)C(O)NH2, were used to prepare the new compounds, SF5CF(CF3)CO2H and SF5CF(CF3)CN, respectively. The first was prepared by reacting the SF5-acid fluoride with water, while the second involved the abstraction of water from the SF5-amide using P4O10. The attempted preparation of a bis-pentafluorosulfur ketone and a pentafluorosulfur containing acid anhydride …
Coral Reef Islands And Their Problems, Peter C. Schroeder
Coral Reef Islands And Their Problems, Peter C. Schroeder
Marine Affairs Theses and Major Papers
Small islands and in particular those more or less dependent on their reefs as a resource were often self-contained units, maintaining a fragile equilibrium in which even small changes could and have wrought fatal disturbances. The pressures of the modern world have endangered these vulnerable units economically, socially, and biologically. In all instances the "'population factor has played an important role. Coral reef islands appear to be more susceptible to the side effects of rapidly growing modernization than other types of islands. No clear answer or solution to this problem can be given but recognition of the threats to them …
The Probe, Issue 44 - July 1984
The Probe, Issue 44 - July 1984
The Probe: Newsletter of the National Animal Damage Control Association
The Probe National Animal Damage Control Association
No. 43 May, 1984 [sic] This issue is actually No. 44 July, 1984
Denver City Council banned trapping
Sewer Snakes
Federal Register
The maze of fences, guards, concrete barriers, laser beams, sensors, etc. are no match for any wild animals that want to inhabit the President's house.
Albuquerque Tribune
Letters to Ye Ed
Rabies
Strychnine
Endangered hall of fame
Animal Rights
Membership
Woodpecker Repellent
NADCA Policy
Rocky Mountain Trapper’s College
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.
Enteric Contamination Of An Urban Karstified Carbonate Aquifer: The Double Springs Drainage Basin, Bowling Green, Kentucky, Geary Schindel
Enteric Contamination Of An Urban Karstified Carbonate Aquifer: The Double Springs Drainage Basin, Bowling Green, Kentucky, Geary Schindel
Masters Theses & Specialist Projects
Biological and chemical analysis of water samples, collected from surface and subsurface streams was preformed to determine the quantity and biologic sources of enteric contamination in the Double Springs Groundwater Basin, an urban karstified carbonate aquifer under Bowling Green, Kentucky. Major flow paths, drainage basin boundaries and geologic/hydrologic relationships were identified for the basin. Analysis of biologic contaminates using fecal coliform /fecal streptococcus counts and ratios were conducted for baseflow and storm events and related to the Double Springs hydrographs. Analysis was also conducted to determine the source of sulfides responsible for the growth of sulfur fixing bacteria in the …
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%; …
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 …
Impacts Of Abandoned Surface Coal-Mined Lands On The Local Population In Southwestern Indiana, Fenner O. Omolo
Impacts Of Abandoned Surface Coal-Mined Lands On The Local Population In Southwestern Indiana, Fenner O. Omolo
All-Inclusive List of Electronic Theses and Dissertations
This study was involved with direct impact of abandoned surface coal-mined lands on the local population in southwestern Indiana. Five problem areas studied have a total of 237 acres of gob, 71 acres of slurry, 22 acres of spoil areas, 10 dangerous high walls, 13 acres of haul road, and 4 acres of tipple. Only three problem areas have postreclamation plans, while the rest do not. Pollution of lake #29 in Green Sullivan LK #29 problem area in Sullivan County and the lake west of Centenary in Electric Shovel problem area in Vermillion County has been caused by sediment and …
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.
A High-Resolution Bathymetry Map For The Marguerite Bay And Adjacent West Antarctic Peninsula Shelf For The Southern Ocean Globec Program, S. T. Bolmer, R. C. Beardsley, C. Pudsey, P. Morris, P. Wiebe, Eileen E. Hofmann, J. Anderson, A. Maldonado
A High-Resolution Bathymetry Map For The Marguerite Bay And Adjacent West Antarctic Peninsula Shelf For The Southern Ocean Globec Program, S. T. Bolmer, R. C. Beardsley, C. Pudsey, P. Morris, P. Wiebe, Eileen E. Hofmann, J. Anderson, A. Maldonado
OES Faculty Publications
One objective of the U.S. Southern Ocean Global Ocean Ecosystems Dynamics (SO GLOBEC) program is to gain a better understanding of the sea floor bathymetry in the program study area. Much of Marguerite Bay and the adjacent shelf west of the Antarctic Peninsula were poorly charted when the SO GLOBEC program started in 2000. Before the first SO GLOBEC cruise, an improved local area version (ETOPO8.2A) was created from the Smith and Sandwell (1997) topo_8.2.img 2-minute digital gridded bathymetry for the study area. The first SO GLOBEC mooring cruise on the R/V Lawrence M. Gould (March 2001) showed that the …
Water Current, Volume 16, No. 3, May/June 1984
Water Current, Volume 16, No. 3, May/June 1984
Water Current Newsletter
Director's Report
FY 1984 Research Program
Water Use Efficiency Task Force Report
1984 Nebraska Water Conference Tabloid
1984 Irrigation Tour
1984 Water Resources Seminar Proceedings
Research Review: Scheduling Procedures with Limited Water for Improved Water Use Efficiency for Corn and Soybeans
Vital Characteristics Of The Black-Tailed Jack Rabbit In East-Central Nebraska, Rockford G. Plettner
Vital Characteristics Of The Black-Tailed Jack Rabbit In East-Central Nebraska, Rockford G. Plettner
School of Natural Resources: Dissertations, Theses, and Student Research
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 …
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 …
Petrology Of The Middle Jurassic Twin Creek Limestone, Lincoln And Sublette Counties, Southwestern Wyoming, David R. Raubvogel
Petrology Of The Middle Jurassic Twin Creek Limestone, Lincoln And Sublette Counties, Southwestern Wyoming, David R. Raubvogel
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The Twin Creek Limestone of Middle Jurassic age was studied in the Tunp, Salt River, and Wyoming Ranges in southwestern Wyoming. Modern carbonate environments and their ancient analogs were compared with information obtained from field study and petrographic analysis of samples of the Twin Creek Limestone in order to delineate environments of deposition, paleogeography, and diagenetic history.
Six major lithofacies were recognized: (1) carbonate mudstone; (2) carbonate mudstone breccia; (3) fossiliferous wackestone; (4) packstone-grainstone; (5) terrigenous mudstone; and (6) sandstone. These lithofacies were deposited in a variety of environments, including outer shelf platforms (carbonate mudstone and fossiliferous wackestone), oolitic sand …