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Articles 64051 - 64080 of 64845
Full-Text Articles in Entire DC Network
Interactions Of Pesticides And Phytoplankton, Pamela H. Philyaw
Interactions Of Pesticides And Phytoplankton, Pamela H. Philyaw
Retrospective Theses and Dissertations
No abstract provided.
An Investigation Of Methods For Reuse Of Rubber Tires, Charles Edward Armbruster
An Investigation Of Methods For Reuse Of Rubber Tires, Charles Edward Armbruster
Retrospective Theses and Dissertations
Methods of reusing/recycling the more than 250 million automobile and truck tires which are worn out each year were investigated. The existing methods of reusing tires account for about 30 percent of the volume of scrap tires generated each year. These methods are, Retreading, Reclaiming (by reducing to ground up rubber and fiber), and Tire Splitting (stamp items out of sidewall and tread areas). Several possibilities for reusing/recycling the unused 70 percent were discovered. These methods are as follows: Destructive Distillation -- a method of recovering chemicals from tires by pyrolitic action. It is anticipated that eventually as much as …
Plant Cover For Bare And Salt Affected Land, Department Of Agriculture, Western Australia
Plant Cover For Bare And Salt Affected Land, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
The contributions made by this State to land reclamation were recognised at an international level last year.
Mr. C. V. Malcolm, a research officer with the Soils Division, presented a paper entitled "Establishing Shrubs in Saline Environments" at a symposium on Useful Wildland Shrubs, Their Biology and Utilisation, at Utah State University, Logan, Utah.
The conclusion to Mr. Malcolm's review, set out below, summarises much of what is known about shrub establishment in saline areas.
Agriculture And Pollution In Western Australia. Part 2. Pollution Problems In W.A, C V. Malcolm
Agriculture And Pollution In Western Australia. Part 2. Pollution Problems In W.A, C V. Malcolm
Journal of the Department of Agriculture, Western Australia, Series 4
In Part I pollution was defined as a reduction in the usefulness of a resource and its significance in relation to resource fragility was discussed. Pollution problems in Western Australia are here considered in broad geographical regions with further subdivision into pollution types.
Septic Tank Nutrients In Groundwater Entering Lake Sallie, Minnesota, David Robert Lee
Septic Tank Nutrients In Groundwater Entering Lake Sallie, Minnesota, David Robert Lee
Theses and Dissertations
The nutrient contribution of septic tanks to a lake was evaluated at Lake Sallie, in glacial outwash terrain of northwestern Minnesota. Groundwater entering the lake was collected by covering 0.258 m2 of lake bed with a bottomless cylinder vented to deflated plastic bag. Inflow velocity ranged from 0.01 to 2.5 micrometers per-second along 30% of the lakeshore. Groundwater inflow along an 800 m segment of shore amounted to 4.50 x 105 m3/year, and was uniformly distributed along the shore, but decreased exponentially away from shore.
Effluent from a heavily-used lakeside septic tank fanned out along the surface of the water …
A Study Of Selected Antineoplastic, Antibiotic, And Corticosteroid Drugs In Intravenous Admixtures, Melvin Philip Mcrae
A Study Of Selected Antineoplastic, Antibiotic, And Corticosteroid Drugs In Intravenous Admixtures, Melvin Philip Mcrae
University of the Pacific Theses and Dissertations
The benefits of intravenous therapy have become more and more apparent over the years. Medications can be given rapidly with an expectant rapid onset of action. The response to the drugs or fluids can often be closely controlled by regulating the dose or rate of administration. Frequently, adequate blood and tissue levels needed to eradicate many serious infections can be reached only by this route. Intravenous therapy is an especially appropriate method when the use of the oral tract, for one reason or another, cannot be used.
The development of intravenous therapy, however, did not proceed without its difficulties. Problems …
The Impact Of Kaiser Bauxite Company On Western St. Ann Parish, Jamaica, Shirley A. Anderson Hallaron
The Impact Of Kaiser Bauxite Company On Western St. Ann Parish, Jamaica, Shirley A. Anderson Hallaron
Masters Theses
No abstract provided.
Water Quality And Benthos Of A Small East Central Illinois Stream, With A Selected Literature Review, Kenneth Lloyd Brummett
Water Quality And Benthos Of A Small East Central Illinois Stream, With A Selected Literature Review, Kenneth Lloyd Brummett
Masters Theses
Polecat Creek is an occasionally intermittent stream which drains approximately 18,368 acres in eastern Coles County, Illinois. It travels 15.2 miles through cropland and a partially wooded valley before it enters the Embarrass River 3 miles upstream from Lake Charleston. The stream ranges from 0.5 foot to 5 feet deep at a normal water level, with an average depth of 16 inches. It averages 12 feet wide, with a range from 4 to 20 feet.
A water quality study with 5 stations along the stream was conducted from January 1971 to July 1971. A qualitative benthos study at the same …
Biomonitoring Of Organochlorine Insecticides Using The Clam, Amblema Plicata, Terry M. Hogan
Biomonitoring Of Organochlorine Insecticides Using The Clam, Amblema Plicata, Terry M. Hogan
Masters Theses
No abstract provided.
Range And Optimum Growth Concentrations Of Phosphate And Nitrate For Chlamydomonas Reinhardtii, Thomas E. Hill
Range And Optimum Growth Concentrations Of Phosphate And Nitrate For Chlamydomonas Reinhardtii, Thomas E. Hill
Masters Theses
A study was conducted on the alga Chlamydomonas reinhardtii to determine the range and optimum growth concentrations of phosphate and nitrate. There are only a few species of algae for which this type of data is known. Inorganic nutritional data is basic to the understanding of the complexities of phytoplankton ecology and eutrophication.
The "plus" strain of this heterothallic alga was cultured in a TRIS-buffered inorganic medium with various concentrations of sodium phosphate and potassium nitrate and adjusted to a pH of 7.4. The axenic cultures were evaluated at the end of 6 days with a spectrophotometer, at a wavelength …
Nitrate-Phosphate Levels Of A Small Mid-Western Lake, Pamela Kay Harmon
Nitrate-Phosphate Levels Of A Small Mid-Western Lake, Pamela Kay Harmon
Masters Theses
No abstract provided.
The Formulation And Physical Analyses Of Antibiotic Aerosol Foams For The Development Of Potential Topical Dermatologicals, Joseph Alexander Woelfel
The Formulation And Physical Analyses Of Antibiotic Aerosol Foams For The Development Of Potential Topical Dermatologicals, Joseph Alexander Woelfel
University of the Pacific Theses and Dissertations
Within the last two decades the consumer market has been deluged with a diversity of aerosol products. The acceptability and utility of these products is reflected by the number found in the household and industry.
An antibiotic foam would obviate the necessity of manual application as is the case with the ointment or cream type products. Therefore, there would be less irritation to the already traumatized or infected sites by mechanical, chemical, or bacterial vectors.
Thus, the objective of this research will be to systematically develop suitable aerosol foam systems which contain therapeutically effective topical antibiotics with a subsequent evaluation …
Spectrophotometric And Microbiological Determination Of The Stability Of Sodium Ampicillin As Affected By Ph, Enrico Frank Raffanti
Spectrophotometric And Microbiological Determination Of The Stability Of Sodium Ampicillin As Affected By Ph, Enrico Frank Raffanti
University of the Pacific Theses and Dissertations
The specific purpose of this investigation was to determine the effect of pH on the stability of ampicillin sodium for injection. Then, to correlate this information, a pH profile may be established to predict chemical stability with ampicillin sodium alone or when other drugs may be included in the admixture. With a pH profile the pharmacist could predict the length of time after which more than a 10 percent loss of activity would occur. Stability measurements were to be accomplished through a microbiological assay after adding ampicillin sodium to different buffer solutions. At the end of four hours, eight hours, …
Perspectives In Hospital Pharmacy Design Based On Functional Requirements, Robert Kenneth Overend
Perspectives In Hospital Pharmacy Design Based On Functional Requirements, Robert Kenneth Overend
University of the Pacific Theses and Dissertations
It is significant that the separation of pharmacy from medicine occurred for the first time in institutions under ecclesiastic authority which were devoted to the care of the sick. In this period of history, there was little division between the church and state; therefore, business did not play any part in the overall health care scheme. The prime consideration was the delivery of the highest quality of pharmaceutical and medical services. This was best accomplished by a division of labor between the expert in the medical treatment and the expert in the selection, preservation and prepagation of medicinals. In other …
Conflicts In Water Managment, A. Alvin Bishop
Conflicts In Water Managment, A. Alvin Bishop
Faculty Honor Lectures
Today we hear a lot about the "quality of life" and the "quality of the environment," two terms that everyone understands, but as yet no one has defined. Like others, I will not attempt a definition but introduce my subject by saying that water is intimately tied up with both our life and our environment, and its management has a profound effect for good or bad, depending upon the point of view. Today also, clean water and anti-pollution are popular crusades. Someone or something has to be responsible and engineering and science are convenient scapegoats. Considerable emotionalism is involved and …
Metabolic Role Of Sulfates And Sulfides Producing Bacteria In Pollution Of Waters, M. I. H. Aleem
Metabolic Role Of Sulfates And Sulfides Producing Bacteria In Pollution Of Waters, M. I. H. Aleem
KWRRI Research Reports
Cytochrome transport particles from Nitrobacter catalyzed nitrite, ascorbate as well as NADH oxidation with concomitant phosphate esterification yielding P/0 ratios of 1.0, 0.6 and 2.0 respectively. Phosphorylation coupled to nitrite oxidation was not effected by rotenone, amytal or antimycin while 50 and 70% inhibition of the NADH-linked phosphorylation was observed in the presence of HOQNO and rotenone respectively. Cell-free extracts from Nitrobacter also catalyzed an energy-dependent reduction of NAD+ by nitrite. The reduction of cytochrome c by NŌ2 was energy-dependent which involved the reversal of electrons from cytochrome a1. The subsequent energy-linked reduction of the flavoproteins …
The Prairie Naturalist Vol. 3, Nos. 3 And 4. September-December, 1971
The Prairie Naturalist Vol. 3, Nos. 3 And 4. September-December, 1971
The Prairie Naturalist
EDITORIAL: Badlands-Old and New ▪ Paul B. Kannowski
SEASONAL INVESTIGATIONS OF ALGAE FROM DEVILS LAKE, NORTH DAKOTA ▪ Richard Verch and Dean W. Blinn
THE VASCULAR FLORA OF PEMBINA COUNTY, NORTH DAKOTA ▪ Rays E. Willenbring and William T. Barker
LET'S EAT WILD ▪ Alan M. Cvancara
SURF SCOTER IN NORTH DAKOTA ▪ Harold A. Kantrud
SNOW GOOSE-CANADA GOOSE HYBRIDS ▪ David C. McGlauchlin
NOTES
Cowbird parasitism of an upland plover nest ▪ Kenneth F. Higgins
Birds sighted within one hour from one observation point in Burleigh County, North Dakota ▪ William A. Buresh
Golden-winged warbler in Burleigh County, North …
Synthesis And Proof Of Structure Of 2, 2-Dichloro-7h-Cyclobut-(A)-Indian-1-One: A New Route To 4, 5-Benztropolone, Thomas Renwick Potts
Synthesis And Proof Of Structure Of 2, 2-Dichloro-7h-Cyclobut-(A)-Indian-1-One: A New Route To 4, 5-Benztropolone, Thomas Renwick Potts
Masters Theses
No abstract provided.
Sero-Epidemiology Of Q Fever With Special Reference To Complications In A Hospital Population Of Southern California, Ajit Singh Randhawa
Sero-Epidemiology Of Q Fever With Special Reference To Complications In A Hospital Population Of Southern California, Ajit Singh Randhawa
Loma Linda University Electronic Theses, Dissertations & Projects
[Abstract Not Included]
Survival Of Some Freshwater Fishes In The Alkaline Eutrophic Waters Of Nebraska, D. B. Mccarraher
Survival Of Some Freshwater Fishes In The Alkaline Eutrophic Waters Of Nebraska, D. B. Mccarraher
Nebraska Game and Parks Commission: Staff Research Publications
Of 14 species of freshwater fishes held in cages in one or more of 13 alkaline lakes and ponds in Nebraska, few species survived more than a month where carbonate alkalinity, mostly as compounds of Na2C03 and KC03, was above 300 mg/liter. Of the 14 species tested, Sacramento perch (Archoplites interruptus), fathead minnow (Pimephales promelas), northern pike (Esox lucius), and the black bullhead (lctalurus melas), were the most tolerant of alkaline environments. Most centrachid fishes except A. interruptusand the green sunfish (Lepomis cyanel!us), did …
Water Resources News, Volume 3, No. 9, November 1971
Water Resources News, Volume 3, No. 9, November 1971
Water Current Newsletter
Program for the 1972 Interdisciplinary Seminar on Water Issues
Simulation of Groundwater Systems
Summer Short Course Planned
Recyling of Water
OSW Awards Freezing Plant Design Contract
Cloud-Seeding Program
Water Rights Study
"Turn-Key" Approach Proposed for Construction of Waste Treatment Plants
Water Quality Guidelines for Nation Being Updated by NAS for EPA
Nebraska Water Resources and Irrigation Development Seminar for the 1970s
EPA Names New Head of Solid Waste Programs Office
Symposium on Costs of Waster Pollution Control
Research Need
Symposium on Watershed Management
EPA Revising Regulations for Grants and Contracts
Internships in Science and Engineering
The Howard University Reviews Of Science, Vol 1 No 1, Department Of Physics
The Howard University Reviews Of Science, Vol 1 No 1, Department Of Physics
Physics Faculty Publications
No abstract provided.
Report On Water Pollution Problems In Las Vegas Wash And Las Vegas Bay, Environmental Protection Agency
Report On Water Pollution Problems In Las Vegas Wash And Las Vegas Bay, Environmental Protection Agency
Publications (WR)
This report was prepared by the Federal Water- Quality Administration, Pacific Southwest Region, now the Environmental Protection Agency (EPA), Region IX, at the request of the State of Nevada, Department of Health, Welfare, and rehabilitation. In a letter, dated December 5, 1969, this agency asked for technical assistance, as authorized by the Federal Water Pollution Control Act, in developing discharge standards appropriate for Las Vegas Bay, Lake Mead, and the Lower Colorado River. The subsequent study was performed by EPA from January through August, 1970. The establishment of Nevada State Water Quality Standards for these waters will enable responsible officials …
Ua77/1 Western Alumnus, Vol. 40, No. 2, Wku Alumni Relations
Ua77/1 Western Alumnus, Vol. 40, No. 2, 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:
- Graduate School (College) is On Its Way
- Evening Class is Thataway
- The Hilltopper Hundred to the Rescue
- ETV - Keep Watching, It's All in Color
- Student Interns Learn How Government Works
- Significant Statements: The New Year Begins
- Good News for Fishermen: Reservoir Research
- There it Was! Your Homecoming - 1971
- Performing Arts Illuminate the Campus Scene
- Discovery 1 - Uncovering the Kentucky of Antiquity
- Discovery 2 - Reviving the Heritage of Kentucky
- Discovery 3 - The Intercultural Studies Program …
A Preliminary Ecological Study Of Areas To Be Impounded In The Salt River Basin Of Kentucky, Louis A. Krumholz, Stuart E. Neff, Edmond J. Bacon, Jerry S. Parsons, John D. Woodling
A Preliminary Ecological Study Of Areas To Be Impounded In The Salt River Basin Of Kentucky, Louis A. Krumholz, Stuart E. Neff, Edmond J. Bacon, Jerry S. Parsons, John D. Woodling
KWRRI Research Reports
This report includes work that is an extension of Project No. B-005-KY as reported in Research Report No. 43 of the University of Kentucky Water Resources Institute. That project was initiated in April 1968 as Project No. A-019-KY with principal emphasis on physical, chemical, and biological characteristics of the main stem of the Salt River upstream from the proposed damsite for Taylorsville Lake, an impoundment of about 3, 600 acres at seasonal pool. The report includes descriptions of an additional 13 stations along the stream, bringing to 38 the number of permanent collecting sites.
Values for dissolved oxygen ranged from …
An Evaluation Of A Stable Isotope Of Dysprosium For Labeling And Tracing Sedimentary Particles, Charles Glenn Boone
An Evaluation Of A Stable Isotope Of Dysprosium For Labeling And Tracing Sedimentary Particles, Charles Glenn Boone
OES Theses and Dissertations
An evaluation of the application of dysprosium oxide as a tracer coating to surface label sedimentary particles is made. Physical and chemical properties of the labeled sand are studied. Effective diameters and settling properties of the tracer sand are compared with unlabeled sand. A total of 8.51 kg of labeled sand was placed on the beach at Camp Pendleton. Dispersal patterns obtained 1 and 4 hours after tracer injection indicate a general down current mean tracer migration rate of 0.21 cm/sec (0.42ft/sec). An absolute detection limit of 4 or 5 parts per 100,000 and a real detection limit, after field …
A Preliminary Ecological Study Of Areas To Be Impounded In The Salt River Basin Of Kentucky, Louis A. Krumholz
A Preliminary Ecological Study Of Areas To Be Impounded In The Salt River Basin Of Kentucky, Louis A. Krumholz
KWRRI Research Reports
This report covers work that is an extension of Project No. A-019-KY. A series of 25 sampling stations was established in the mainstream and tributaries of the Salt River that extend from the source of the stream in Boyle County to a few miles below the site of Taylorsville Darn in Spencer County. Sampling for water chemistry and biota was carried out semimonthly. Data on temperature, oxygen, depth, and discharge, along with analyses for cations (Ca, Mg, Fe, Mn) and anions (PO4, NO3, NO2, CO3, HCO3) have been accumulated and …
13th Annual Rocky Mountain Spectroscopy Conference
13th Annual Rocky Mountain Spectroscopy Conference
Rocky Mountain Conference on Magnetic Resonance
Program and abstracts from the 13th annual meeting of the Rocky Mountain Spectroscopy Conference, hosted by the Rocky Mountain Section of the Society for Applied Spectroscopy. Held in Denver, Colorado, August 9-10, 1971.
Studies Of Pig Brain Thiamin Pyrophosphokinase, James Weldon Peterson
Studies Of Pig Brain Thiamin Pyrophosphokinase, James Weldon Peterson
Theses and Dissertations
Pig brain thiamin pyrophosphokinase (TPK) (ATP: thiamin pyrophosphotransferase, EC 2.7.6.2) was purified 260-fold over extracts of brain acetone powder. The purification was followed using a direct, radiometric assay. As determined in an analytical ultracentrifuge and by disc-gel electrophoresis, the most highly purified enzyme preparations were not homogeneous. The purified enzyme has a broad pH optimum extending from 8.3 to 9.3 in phosphate-glycylglycine buffer. It has an isoelectric point at about pH 4.2. For optimal enzymatic activity, the ratio of magnesium to ATP must be 0.6. Any deviation from this ratio causes a rapid drop in enzymatic activity. A study of …
Final Report Emission Inventory For The State Of Nebraska, The Ibm Corporation Federal Systems Division, Environmental Protection Agency
Final Report Emission Inventory For The State Of Nebraska, The Ibm Corporation Federal Systems Division, Environmental Protection Agency
United States Environmental Protection Agency: Publications
The following report represents the results of the work performed under BOA 68-02-0043, Task Order Number 1 from The Environmental Protection Agency, Air Pollution Control Office. A note of thanks is due to Mr. E. J. Lillis and D. Dunbar of the EPA Project Office and Mr. Peter Culver, the EPA Project Engineer for their assistance and excellent cooperation during the study. A note of special thanks is due to Mr. Gene Robinson of the Nebraska Division of Air Pollution Control without whose efforts successful completion of this task would not have been possible.