Digital Commons Network^™

G93-1128 Understanding Groundwater, William L. Kranz, Delynn R. Hay, James W. Goeke

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide provides information on how groundwater exists, where it exists, and how it moves. Key definitions are highlighted. Water is the life blood of every living creature on earth. Approximately 70 percent of the earth's surface is covered with water. Through the wonders of nature, water can take on many different forms, from the water we drink, to the ice we use to chill a glass of lemonade, to the water vapor used to steam clean equipment. It is easy to understand the significance water plays in our lives, but it may be much more difficult to understand the …

Well-Water Quality Data From A Volunteer Sampling Program: Audubon County, Iowa, L. S. Seigley, G. R. Hallberg, P. R. Walther, G. A. Miller

Journal of the Iowa Academy of Science: JIAS

This study presents the results of a countywide volunteer sampling of private well-water. Volunteers collected 231 well-water samples in Audubon County for nitrate-nitrogen (NO₃,-N) and total coliform bacteria analyses during September 1988. Questionnaires were completed at all sites to document well construction, age and depth of well, well placement relative to septic system, barnyard/feedlots, location of chemical mixing/tank rinsing, and presence of abandoned wells.

Annual Report Of The Iowa Academy Of Science, 1992-93, Paul E. Rider

Journal of the Iowa Academy of Science: JIAS

Starting in 1976, annual reports have served as a continuing record of the activities of the Iowa Academy of Science. These augment a 100 year history of the Academy which was written in the centennial year of 1975. This report covers the period from July 1, 1992 to June 30, 1993. It is based on the official records of the Academy (committee reports, Board minutes, correspondence) as well as the recollections, impressions and thoughts of the author.

The Iowa Science Teachers 1993 Fall Conference, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Luncheon Speaker ... 2-3
Exhibitor Checkoff ... 4
Raffle ... 5
Door Prizes ... 6 - 8
Housing Information ... 9
Concurrent Sessions I ... 10
Concurrent Sessions II ... 14
Concurrent Sessions III ... 19
Luncheon Information ... 24
Conference Registration Form ... Centerfold
Application for Membership ... Centerfold
Concurrent Sessions IV ... 25
Concurrent Sessions V ... 30
Corporate Sponsors ... 35
Exhibitors ... 36-37
Science Center of Iowa ... 38
Map ... 39
Acknowledgments ... 40
ISTS Officers and Regional Directors ... Inside Back Cover

Iowa Academy Of Science 105th Annual Meeting [1993]: Advance Program, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.

Preparation Of Functionalized Polymers Utilizng A Soluble Highly Reactive Form Of Calcium, Reuben D. Rieke

Department of Chemistry: Faculty Publications

Calcium-substituted polymeric reagents are provided. These reagents can be prepared via the oxidative addition of a soluble highly reactive calcium species to organic and inorganic polymers containing alkyl, aryl, or alkylaryl pendent groups substituted with halide atoms, cyanide molecules, 1,3-dienes, or any conjugated poly unsaturated system. Preferably, the polymer is a cross linked p-bromopolystyrene, p-chloropolystyrene, p fluoropolystyrene, or chloromethylated polystyrene. Preferably, the soluble highly reactive calcium species is prepared from the reduction of Ca(II) salts with an alkali metal arene, such as lithium biphenylide. These calcium-substituted polymeric reagents react with a variety of electrophiles to yield functionalized polymers. Reaction with …

A Temperature-Adjusted Ozone Attainment Criterion Based On Extreme Value Regression Analysis, D. L. Hawkins

Mathematics Technical Papers - Archive

We propose a new statistical methodology to adjust observed peak ozone levels to "normal" meteorology (say, temperatures) across the year for a given site. The adjusted ozone levels can be used to establish a yearly ozone attainment criterion without undue influence of meteorology. They can also be used to estimate ozone trends resistant to meteorological influences. The adjustment process is based on an extreme value regression model of the relationship between peak ozone, temperature and various precursors of ozone. The proposed temperature-adjustment criterion is applied to data for seven sites in Los Angeles County for each of the years 1989-1993, …

Three Year Study On A Cypress-Tupelo Swamp In Independence County, Arkansas, Veryl V. Board, Andrea Reeves, Charlotte Allen

Journal of the Arkansas Academy of Science

No abstract provided.

Status Report: Identification Of Appropriate Standards For Corrective Action For A Release From Petroleum Underground Storage Tanks, Volume 1, Lyle V.A. Sendlein, Wesley J. Birge, G. Blomquist, James S. Dinger, Ralph R. Huffsey, Robert Guthries, Sanford W. Horstman, M. D. Kercher, Paul M. Mcginley, David C. Short, T. W. Struttmann, Larry Taylor, Thomas Tobin, David Dunn, Burl Naugle

KWRRI Research Reports

This study was undertaken to address the removal and closure of defective petroleum underground storage tanks in Kentucky:

• To address standards for levels of contamination requiring corrective action consistent with accepted scientific and technical principles.
• To recommend a matrix or scoring system to be used for (a) ranking sites as to actual or potential harm to human health and the environment caused by a release of petroleum from a petroleum storage tank, and (b) establishing standards and procedures for corrective action that shall adequately protect human health and the environment.
• To address all compounds individually and collectively known as petroleum. …

Quality Of Private Ground-Water Supplies In Kentucky, Daniel I. Carey, James S. Dinger, O. Barton Davidson, Richard E. Sergeant, Joseph L. Taraba, Thomas W. Ilvento, Steve Coleman, Rayetta Boone, Laura M. Knoth

Information Circular--KGS

About 3.7 million people live in Kentucky, of which 1.9 million (52 percent) live in urban areas (roughly defined as any community with 2,500 or more people) and 1.8 million (48 percent) live in rural areas (University of Kentucky, 1993). Figure 1 summarizes sources of drinking water for Kentucky residents. About 70 percent of Kentuckians get their daily supply of water from surface-water sources - lakes and streams; about 25 percent get their water from ground-water wells; and about 5 percent get their water from other sources - springs, cisterns, ponds, or hauled water.

Concentration And Distribution Of Phosphate In The Sediment Of The Charleston Side Channel Reservoir, Nancy A. Johnson

Masters Theses

The Charleston Side Channel Reservoir (CSCR) is located on the southeast edge of the City of Charleston in Coles Co., IL. The CSCR is the sole source of public drinking water for the city and also provides for a variety of recreational activities. Water quality in the CSCR has deteriorated since its construction in 1981, leading to its classification as hypereutrophic. The presence of high levels of phosphate are of particular concern having contributed to an increase in algal blooms and high turbidity.

In order to assess the role of internal loading of phosphate from the sediment, thirty-five sample sites …

A Review Of The Biology Of Giant Salvinia, J. Douglas Oliver

Faculty Publications and Presentations

Giant salvinia (Salviniaceae) is a potentially serious aquatic weed that is native to Brazil. It has been reported in more than 20 countries, but is not established in the U.S. at this time. Mitchell and Tur (1975) reported that three years after the formation of the Kariba Reservoir in Africa, giant salvinia blanketed 21.5% or 1003 km2 of the reservoir surface area. Creagh (199111992) wrote, "A single small plant may grow to form a thick mat covering more than 100 sq. km. in just three months - choking lakes and waterways, reducing populations of aquatic plants and animals and in …

A Survey Of The Stony Coral Community Composition Of Pompano Ledge, Broward County, Florida, With A Preliminary Evaluation Of The Effectiveness Of Mooring Buoys In Reducing Coral Damage, John D. Hocevar

HCNSO Student Theses and Dissertations

Stony corals of Pompano Ledge, First Reef, Broward County, Florida were sampled in situ using a new reef assessment method. The circular-radial method was used to assess the effectiveness of mooring buoys in reducing damage to reefs. Data will be part of a long-term monitoring study of·buoy impacts. The parameter of recent injury was used to provide preliminary information on buoy effectiveness.

Results were as follows: approximately 6% of the study area was covered by stony corals, with an average of 3 colonies per square meter. Diversity based on abundance (H'n) was 1 .7, and diversity based on relative coverage …

Reconnaissance Data For Selected Herbicides, Two Atrazine Metabolites, And Nitrate In Surface Water Of The Midwestern United States, 1989-90, Elisabeth A. Scribner, E. Michael Thurman, Donald A. Goolsby, Michael T. Meyer, Margaret S. Mills, Michael L. Pomes

United States Geological Survey: Publications

Water-quality data were collected from 147 rivers and streams during 1989-90 to determine the temporal and geographic distribution of selected preemergent herbicides, two atrazine metabolites, and nitrate in 10 Midwestern States. This report includes a description of the sampling design, data-collection techniques, laboratory and analytical methods, and a compilation of constituent concentrations and quality-assurance data. All water samples were collected by depth-integrating techniques at three to five locations across the wetted perimeter of each stream. Sites were sampled three times in 1989~before application of herbicides, during the first major runoff after application of herbicides, and in the fall during a …

Graduate Bulletin, 1993-1995, Moorhead State University

Graduate Bulletins (Catalogs)

No abstract provided.

Nuclear Magnetic Resonance Study Of Antigen-Antibody Complexes, Including Sequence Specific Assignments And Structural Analysis Of Neurophysin As An Antigen Model, Elisar Jamil Barbar

Dissertations and Theses

The interaction between molecules is essential in a wide range of biological processes. A detailed knowledge of these interactions is necessary for understanding these processes. Among the systems that involve important interactions is the immune system. NMR spectroscopy has a large number of spectral parameters that were used in this work to study antibody-antigen interactions. These same parameters were also used to begin a structural analysis of a medium-sized protein, neurophysin, that has important interactions with neurohormones, and served here as a model antigen. A set of ligands differing in size and charge was designed and used to probe the …

Phytoplankton Relationships To Water Quality In Lake Drummond And Two Drainage Ditches, Christine G. Phillips, Harold G. Marshall

Biological Sciences Faculty Publications

A twelve-month phytoplankton study was conducted in Lake Drummond and Washington and Jericho Ditches from December 1988 to November 1989. Four dominant phytoplankton groups were identified at these sites. These were the Bacillariophyceae, Cyanophyceae, Cryptophyceae and an autotrophic picoplankton component. Over the past 20 years there has been a decrease in the mean pH levels of Lake Drummond and the replacement of one its former major components, the Chlorophyceae, by the Cyanophyceae. Based on water quality analysis results and species diversity indices, Lake Drummond is classified as in an early eutrophic stage of development.

Larval Chironomids Of The St. Francis Sunken Lands In Northeast Arkansas, Betty G. Cochran, Edmond J. Bacon Jr., George L. Harp

Journal of the Arkansas Academy of Science

Sixty semi-annual collections (August 1987-July 1988) were made from 30 stations by sampling each station twice for 1.5 man-hours with an aquatic dipnet. Larval chironomids were mounted on slides and identified at 400-1000 magnifications using a Leitz Dialux 20 EB microscope. A survey of the aquatic macroinvertebrates of the St. Francis Sunken Lands in northeast Arkansas revealed 36 taxa of Order Diptera, Family Chironomidae. The taxa were used to evaluate the general health of the aquatic environment. Stations that were located within the least disturbed areas, which were old river channels and oxbows, contained the highest number of organisms and …

Environmental Analysis Of The Caddo River And Its Tributaries: Comparison Of Water Quality During 1992 With 1974-75, Kelly L. House, Jimmy D. Bragg, Clark Kuyper, T. Kent Thomas, C. Renn Tumlison

Journal of the Arkansas Academy of Science

Environmental data related to water quality of the Caddo River and its tributaries were collected from March - October, 1992, and compared with data from August, 1974 - May, 1975. Bacterial, chemical and physical parameters were investigated at six river locations and thirteen tributary sites. Ammonia, nitrates, soluble phosphorus, turbidity and fecal coliform were significantly lower, and sodium and potassium were significantly higher in 1992 than during the previous study. Bacterial loading exceeded EPA criteria at some locations during both studies.

Table Of Contents, Volume Four, Number One, Winter 1993, Risk Editorial Board

RISK: Health, Safety & Environment (1990-2002)

Table of contents for the journal Risk: Issues in Health & Safety (ISSN: 1073-8673).

Economic Impacts Of Noxious Facilities: Incorporating The Effects Of Risk Aversion, Leslie A. Nieves

RISK: Health, Safety & Environment (1990-2002)

The author suggests an integrative approach for projecting economic impacts of facilities that elicit public Risk aversion. She incorporates both economic stimulus effects and perception-based effects of facilities on the host area economy. Empirical findings are compared and an impact estimation framework is suggested for integrating psychometric and econometric techniques.

Telomere Processing In Euplotes, Joris Robert Vermeesch, Dewight Williams, Carolyn M. Price

Department of Chemistry: Faculty Publications

In Euplotes crassus millions of telomeres are synthesized during the sexual phase of the life cycle. Since these newly synthesized telomeres are longer than normal macronuclear telomeres, they must be trimmed to the mature size. We have examined the timing and mechanism of this trimming step. We have shown that a sudden decrease in telomere length takes place at a specific time during macronuclear development. The decrease in telomere length is not caused by incomplete replication of the most terminal DNA sequences; rather it is the result of an active processing event that occurs independently of DNA replication. The developmentally …

Preparation Of Functionalized Polymers Utilizing A Soluble Highly Reactive Form Of Calcium, Reuben D. Rieke

Department of Chemistry: Faculty Publications

Calcium-substituted polymeric reagents are provided. These reagents can be prepared via the oxidative addition of a soluble highly reactive calcium species to organic and inorganic polymers containing alkyl, aryl, or alkylaryl pendent groups substituted with halide atoms, cyanide molecules, 1,3-dienes, or any conjugated poly unsaturated system. Preferably, the polymer is a cross linked p-bromopolystyrene, p-chloropolystyrene, p-fluoropolystyrene, or chloromethylated polystyrene. Preferably, the soluble highly reactive calcium species is prepared from the reduction of Ca(II) salts with an alkali metal arene, such as lithium biphenylide. These calcium-substituted polymeric reagents react with a variety of electrophiles to yield functionalized polymers. Reaction with Cu(I) …

The Potential Environmental Consequences Of Utilizing Sewage Sludge As Fertilizer On Agricultural Lands: A Case Study Of The Region Of Waterloo (Ontario), Benjamin C. Mohabir

Theses and Dissertations (Comprehensive)

With the advent of increased volumes of liquid sewage sludge being produced in the world annually, means of disposal and recycling have become a serious issue. The disposal of sludge onto agricultural lands has raised concern regarding its environmental implications. The concern stems from the presence of toxic substances often found in sludge which can be harmful to the environment. The sludge utilization programme in the Regional Municipality of Waterloo has shortcomings in the areas of site evaluation and monitoring, and setting an application agenda tied in with a weather forecasting system. These shortcomings combined with the physical characteristics of …

Threshold Order And Likert-Style Questionnaires, Barry Sheridan

Research outputs pre 2011

Attention to the structure and sequence order of categories for items employing extended category scoring has not received the attention it deserves in the construction of Likert-style questionnaires. The importance of threshold order is emphasised through the presentation of two examples drawn from actual testing situations. When the "neutral", "not sure" or "uncertain" category is incorporated as part of the scoring function the Likert format, threshold disorder results which demonstrates that this structure is not conducive to sound measurement procedures. The second illustration demonstrates how accounting for extremely unlikely responses in a data set, through an examination of threshold order, …

Computer Methodology For Transportation Agencies To Screen Technologies For Hazardous Waste Remediation, William J. Grenney, Ravi Kumar Penmetsa

Reports

Executive Summary: Many pathways exist for transportation agencies and other public and private agencies to become responsible for sites contaminated by hazardous wastes. As a reult, agencies frequently face a multitude of lega, regulatory, financial, technical, and health risk problems. When transportation agencies become involved in the remediation of hazardous waste sites, the common practice is to hire consultants and contractors for the clean up process. Because the field of hazardous waste site remediation is changing so rapidly, agency personnel evaluating the consultant's recommendations need to ahve access to the most recent regulatory and remediation information. Early stages of the …

The Interaction Of Sickle Hemoglobin With Phosphatidylserine Vesicles ; Fourier Transform Infrared Spectroscopic Studies Of Human Erythrocyte Spectrin, Cynthia C. Labrake

Dissertations

No abstract provided.

Trypanosoma (Nannomonas) Congolense: Molecular Characterization Of A New Genotype From Tsavo, Kenya, P. A.O. Majiwa, M. Maina, J. N. Waitumbi, S. Mihok, E. Zweygarth

All Peer-Reviewed Publications

Trypanosoma (Nannomonas) congolense comprises morphologically identical but genetically heterogeneous parasites infective to livestock and other mammalian hosts; three different genotypes of this parasite have been described previously. Restriction enzyme fragment length polymorphisms (RFLPs) in both kinetoplast DNA minicircle and nuclear DNA sequences, and randomly amplified polymorphic deoxyribonucleic acid (RAPD) patterns have been used here to demonstrate the existence of another type of T. (N.) congolense that is genotypically distinct from those that have so far been characterized at the molecular level. A highly repetitive, tandemly arranged DNA sequence and oligonucleotide primers, for use in polymerase chain reaction (PCR) amplification are …

Enantiomeric Separation Of Chiral Components Reported To Be In Coffee, Tea, Or Cocoa, Apryll M. Stalcup, K. Helen Ekborg, Mary P. Gasper, Daniel W. Armstrong

Chemistry Faculty Research & Creative Works

Literally hundreds of volatile compounds have been identified in coffee, tea, and cocoa. A significant proportion of these compounds are known to be chiral. The enantiomeric composition of most of these compounds is unknown, and until recently there were no efficient analytical procedures for their identification. The advent of cyclodextrin-based chiral stationary phases for capillary gas chromatography provides effective means for the enantioselectivity analysis of many of these compounds. Some of these are known to be flavor and fragrance components that occur naturally or are produced from the manufacturing process (e.g., fermentation, drying, and roasting). © 1993, American Chemical Society. …

Habitat Use And Gas Bubble Disease In Southern Cavefish (Typhlichthys Subterraneus), Alex L. S. Schubert, Carl D. Nielsen, Douglas B. Noltie

International Journal of Speleology

In situ observations of habitat use by southern cavefish (Typhlichthys subterraneus) in a Missouri, U.S.A. spring suggest that groundwater discharge and that zones of substrate which have large interstitial spaces that fish can enter may be important components of the species habitat. Such substrates may also facilitate smallscale dispersal. In addition, we document the first recorded case of gas bubble disease in a laboratory-held specimen of this species. Cavefish may be particularly susceptible to this malady, and the conditions under which it occurred are important to avoid should captive maintenance or propagation of this or related species be …