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Articles 5761 - 5790 of 6139
Full-Text Articles in Entire DC Network
Teaching Global Issues Through Mathematics, Richard H. Schwartz
Teaching Global Issues Through Mathematics, Richard H. Schwartz
Humanistic Mathematics Network Journal
No abstract provided.
Hawaiians Fight For The Rainforest, Paul Faulstich
Hawaiians Fight For The Rainforest, Paul Faulstich
Pitzer Faculty Publications and Research
On March 25, 141 were arrested as part of the largest demonstration yet against the drilling of geothermal wells in the Wao Kele O Puna Rainforest on the Big Island of Hawaii. The geothermal project, undertaken by True Geothermal Company and endorsed by Hawaii's governor and other high-powered, short-sighted people, has already invaded the largest intact tropical lowland rainforest in the United States. The demonstration drew over 1500 protesters,
The Annual Meeting Of The Iowa Academy Of Science April 20-21, 1990 [Program, 102nd Meeting], Iowa Academy Of Science
The Annual Meeting Of The Iowa Academy Of Science April 20-21, 1990 [Program, 102nd Meeting], Iowa Academy Of Science
Iowa Academy of Science Documents
Contents:
Program Summary --- 5
General Session Speakers --- 9
Awards --- 12
Distinguished Fellow --- 12
Distinguished Service --- 13, 14
Symposia Programs --- 15
Poster Session --- 17
Campus Map --- Centerfold
Section Programs --- 22
Agricultural Sciences --- 22
Anthropology --- 25
Botany --- 26
Cellular & Molecular Biology --- 28
Chemistry, Inorganic --- 30
Chemistry, Organic --- 34
Conservation --- 37
Earth Science Teaching --- 39
Elementary Science Teaching --- 40
Engineering --- 42
Geology --- 47
Linguistics --- 48
Nursing --- 49
Physics --- 50
Physiology --- 53
Psychology --- 54
Science Teaching --- 56 …
Water Current, Volume 22, April 1990
Water Current, Volume 22, April 1990
Water Current Newsletter
Environmental Studies Part of Geography Department, Jeanne Kay
Twentieth Annual Earth Day Observed April 22
NATO Advanced Research Workshop to be Held at UNL in September
First Irrigation Day Held February 22
Just Give Us a Call for Water Seminar Proceedings
Festival Highlights Importance of Nebraska's Groundwater
Prevention Key to Pollution
Assessment Atlas Now Available
Water Conference Council Awards
Agency Cooperation Urged at Water Conference
90s Exciting Times in Water Resources
Nebraska Counties Included in High Plains Irrigation Research
Mid-Nebraska Water Quality Demo Project Combines State and Federal Agencies to Research Irrigation Efficiency
Irrigation Bolsters Nebraska's Economy
First Nebraska Instream …
The Human Element In Wildlife Damage Situations, Ron J. Johnson
The Human Element In Wildlife Damage Situations, Ron J. Johnson
Vertebrate Pest Conference Proceedings: 14th (1990)
The field of prevention and control of wildlife damage is changing and evolving along with clientele needs, pressures from user and non-user groups, and other factors. A theoretical overview of the field may offer an action model regarding changing trends and potential responses. I propose that three things happen every time a wildlife damage problem occurs: 1) A human activity, desire, or need is interfered with, 2) the experience fosters an opinion about a wild animal - usually negative, and 3) a decision is made to tolerate the situation or to control it. If control is selected, availability and effectiveness …
Uncertainty, Politics, And Outer Continental Shelf Development, Robert B. Wiygul, University Of Colorado Boulder. Natural Resources Law Center
Uncertainty, Politics, And Outer Continental Shelf Development, Robert B. Wiygul, University Of Colorado Boulder. Natural Resources Law Center
Books, Reports, and Studies
15 p. ; 28 cm
Minnesota's Boundary Waters Wilderness: Time For A New Name And A New Philosophy, T. Jeffery Evans
Minnesota's Boundary Waters Wilderness: Time For A New Name And A New Philosophy, T. Jeffery Evans
Journal of the Minnesota Academy of Science
No abstract provided.
Report On The Conference Of Post-Secondary Environmental Educators, Caryl Edward Buchwald, Shirley M. Dougherty
Report On The Conference Of Post-Secondary Environmental Educators, Caryl Edward Buchwald, Shirley M. Dougherty
Journal of the Minnesota Academy of Science
No abstract provided.
Fisheries Research Report No. 92 - Spread Of The Introduced Yabbie Cherax Albidus Clark, 1936 In Western Australia, N. M. Morrissy, G. Cassells
Fisheries Research Report No. 92 - Spread Of The Introduced Yabbie Cherax Albidus Clark, 1936 In Western Australia, N. M. Morrissy, G. Cassells
Fisheries Research Reports
This report presents information on the probable original introduction of the eastern Australian yabbie to farm dams in the Wheat-belt Region of the southwest of Western Australia (in 1932 at Narembeen); the probable type of yabbie (the "White Yabby", Cherax albidus Clark 1936 ) and source (Miram Swamp in the Victorian Wimmera); and, in 1985, the first voicing of concern over the spread of yabbies to natural habitats, particularly in the higher rainfall region of the southwest, together with current national and international concerns and advice on introduced aquatic species.
Commercial harvesting ("extensive" aquaculture) of existing yabbie stocks in wheat-belt …
Instrumentation For Multi-Electrode Voltammetry, I-Pin Ho
Instrumentation For Multi-Electrode Voltammetry, I-Pin Ho
Dissertations and Theses
When metal pollutants exist in natural water, their toxicity is dramatically dependent on the chemical species. Numerous sophisticated techniques and instruments have been developed to detect metal pollutants at very low concentration levels. However, one important factor is often ignored, i.e., rarely is species determination required. Electrochemical (EC) methods have the particular advantage of being, in principle, a species-sensitive method rather than an element-sensitive method for the study of metal speciation in natural waters.
The goal of this research was to develop an instrument using the EC technique for speciation and general voltammetric studies. It was accomplished by designing a …
Characteristic Discharge And Suspended-Sediment Relationships In Two Glacier-Fed Rivers In The Karakoram, Richard E.J. Kelly
Characteristic Discharge And Suspended-Sediment Relationships In Two Glacier-Fed Rivers In The Karakoram, Richard E.J. Kelly
Theses and Dissertations (Comprehensive)
The purpose of this thesis is to investigate relationships between meltwater flow and production and flushing of suspended-sediment beneath two alpine glaciers. During the ablation seasons of 1987 and 1988, discrete, hourly measurements were taken of discharge, stage, suspended-sediment concentration and electrical conductivity in two rivers draining catchments of the Bualtar and Batura Glaciers in the Karakoram, N. Pakistan. The discharge time series of the Bualtar River reveals that flow varies over a daily period of three to four weeks, at a diurnal level and over one to four hours. Over all three time scales, electrical conductivity is inversely proportional …
Water Quality Dynamics In Meltwaters Draining Peyto Glacier, Alberta, Christopher Bradley
Water Quality Dynamics In Meltwaters Draining Peyto Glacier, Alberta, Christopher Bradley
Theses and Dissertations (Comprehensive)
Variations in the quantity and quality of meltwaters draining Peyto Glacier, Alberta, are assessed to examine to what extent meltwater characteristics might be indicative of any distinctive source and routing of water through a glacierised drainage basin. Continuous monitoring of solute concentrations of the principle melt-stream, Peyto Creek, was undertaken for significant periods in 1982, 1984 and 1987, coupled with measurements of suspended sediment concentration at the glacier terminus. Discharge of meltwater was determined for periods in 1982 and 1987. Supplementary monitoring of hydrogen-ion variation and total solute concentration was undertaken at additional sites within the basin, at a stream …
An Evaluation Of Phosphorus Export From Four Urban Land Uses During Summer Rainfall-Runoff Events In The Laurel Creek Watershed, E. Martin Pemberton
An Evaluation Of Phosphorus Export From Four Urban Land Uses During Summer Rainfall-Runoff Events In The Laurel Creek Watershed, E. Martin Pemberton
Theses and Dissertations (Comprehensive)
Cultural eutrophication, resulting from anthropogenic inputs of nutrients, such as phosphorus, can be detrimental to aquatic ecosystems. The effectiveness of recent phosphorus abatement programs, focused on point source inputs such as municipal and industrial effluent, has brought attention to the reduction of non-point sources, such as urban runoff. Target phosphate loads for the Great Lakes, set by the International Joint Commission, are deemed unattainable, without phosphorous reduction from non-point sources (Yaksich and Rumer, 1980), and it is with this knowledge that this thesis is undertaken. Analysis of phosphate export data from areas of different urban land uses indicates that residential …
Summer Stormflow Generation In A Small Precambrian Shield Basin, Larry C. Pezzutto
Summer Stormflow Generation In A Small Precambrian Shield Basin, Larry C. Pezzutto
Theses and Dissertations (Comprehensive)
The environmental isotope oxygen-18 and natural water chemistry were used to identify both the percent individual source component and mechanisms responsible for generating summer surface storm runoff in a small Precambrian Shield catchment. In addition, variations in radon gas (Rn-222) concentration in both surface and groundwaters were monitored in order to gain additional information not obtainable through use of the above stated tracers. Results indicate that the percent component contribution and the mechanism(s) responsible for stormflow generation within the study basin are largely dependent upon antecedent basin conditions and physical storm characteristics. Generally speaking, shortly after initiation of precipitation under …
The Effect Of Mid-Winter Snowmelt Events On Nitrate And Ammonium Concentration In The Unsaturated And Shallow Saturated Zones: A Case Study, Richard J. Elgood
The Effect Of Mid-Winter Snowmelt Events On Nitrate And Ammonium Concentration In The Unsaturated And Shallow Saturated Zones: A Case Study, Richard J. Elgood
Theses and Dissertations (Comprehensive)
During the period of December 19, 1987 to March 28, 1988, the unsaturated and shallow saturated groundwater zones under two agricultural land use sites, near Waterloo, Ontario, were investigated to determine the effect of snowmelt percolation on the groundwater quality. Periods of widely fluctuating temperatures and sporadic rain events produced large changes in snowpack water equivalence. The resulting infiltration of snowmelt significantly altered the extent of the saturated area and the concentration of N (nitrogen) ions in both the soil column and percolate water. An N flux from the vadose (unsaturated) zone to the shallow phreatic (saturated) zone, occurring in …
Bed Load Measurements: Nottawasaga River And Selected Tributaries, Ontario, Canada, Marylou B. Burkard
Bed Load Measurements: Nottawasaga River And Selected Tributaries, Ontario, Canada, Marylou B. Burkard
Theses and Dissertations (Comprehensive)
Between July, 1989 and March, 1990, bed load samples were taken from ten bridge sites on the Nottawasaga River and three of its tributaries. The Helley-Smith Sampler was used to collect bed load samples, the DH-48 Suspended Sediment sampler was used to sample the suspended load, and velocity estimates were obtained with a Marsh-McBirney Model 512M electromagnetic current meter. Results show that the Pine River, which is a tributary of the Nottawasaga River, had higher bed load transport rates than the Nottawasaga River. The other tributaries, Willow Creek and Boyne River, transported less. During the summer and fall, bed load …
Depositional And Deformational Structures In Three 'Esker-Like' Ridges, Southwestern Ontario, John D. Parish
Depositional And Deformational Structures In Three 'Esker-Like' Ridges, Southwestern Ontario, John D. Parish
Theses and Dissertations (Comprehensive)
The Dundalk Till Plain in southwestern Ontario is crossed by five “esker-like” ridges, believed to have been formed simultaneously during the early stage of the mid-Port Burce Stadial. The three middle ridges are the focus of this research, with each ridge having a different topographic form, but the length of, and distance between, ridges are similar. Occurrences of differing depositional structures and the presence of deformational structures over short lateral and vertical distances reveal the complexity of processes involved. The dominant primary sedimentary structures are large-scale tabular cross-beds. Many individual cross-beds are composed of poorly sorted, matrix-supported gravels. High variability …
An Underwater Science And Resource Database Management System And Proposed Applications To Marine Geographic Information Systems, Ivar Babb
Marine Affairs Theses and Major Papers
The National Undersea Research Program (NURP) is a federally-funded program that provides scientists with modern in situ technology that allows them to conduct research that goes beyond the constraints of traditional oceanographic methodology. NURP is comprised of five regional centers that administer underwater science, and through the principal investigators that are supported generate a vast quantity of diverse data. This data and information bank consists of the following: raw environmental data, logistical data, locational data, information about the scientists, video and still photograph documentation, and publication information. This paper describes the theory behind the implementation of a Database Management System …
An Evaluation Of Noaa's Role In Ocean Dumping Policy Implementation, Kenneth W. Barton
An Evaluation Of Noaa's Role In Ocean Dumping Policy Implementation, Kenneth W. Barton
Marine Affairs Theses and Major Papers
Dumping of wastes into the ocean has gone on for years especially in the New York Bight. The National Oceanic and Atmospheric Administration (NOAA) is mandated by Title II of the Ocean Dumping Act of 1972 to investigate the effects of ocean dumping on the marine environment. However, there is a perception within Congress, the public and other agencies that NOAA is not meeting it's responsibilities with regard to ocean dumping research. The effectiveness of NOAA's ocean dumping policies and programs and the difficulties in implementation experienced by the agency are evaluated by applying George Edwards' theory of policy implementation. …
Water Rights Decisions In The Western States: Upgrading The System For The 21st Century, Steven J. Shupe, University Of Colorado Boulder. Natural Resources Law Center
Water Rights Decisions In The Western States: Upgrading The System For The 21st Century, Steven J. Shupe, University Of Colorado Boulder. Natural Resources Law Center
Books, Reports, and Studies
18 p. ; 28 cm
Identifying Directional Properties Of Spatial Point Patterns An Investigation Of Two Methods, Rolf Puchtinger
Identifying Directional Properties Of Spatial Point Patterns An Investigation Of Two Methods, Rolf Puchtinger
Theses and Dissertations (Comprehensive)
Analyses of spatial point patterns tend to focus on deviations from randomness by either clustering or regularity. One assumption of these analyses implies that the point generating process is equal in all directions. However, the association of the location of points with a process biased in one or more directions is widely neglected due to a lack of appropriate statistical procedures. This is surprising, since patterns generated by directional processes are important in Geography. The purpose of this thesis is to investigate the blunt-triangle method and the third moment method for their potential of identifying directionality in spatial point patterns. …
The Prairie Naturalist Volume 21, No.4 December 1989
The Prairie Naturalist Volume 21, No.4 December 1989
The Prairie Naturalist
SMALL MAMMALS IN TALL-GRASS PRAIRIE: PATTERNS ASSOCIATED WITH GRAZING AND BURNING ▪ E. K. Clark, D. W. Kaufman, E. J. Finck, and G. A. Kaufman
BURROW DISTRIBUTION OF THIRTEEN-LINED GROUND SQUIRRELS IN RELATION TO TREE CANOPIES ▪ J. L. Koprowski 185
SPRING AND SUMMER PREY REMAINS COLLECTED FROM MALE MINK DENS IN SOUTHWESTERN MANITOBA ▪ . T. W. Arnold and E. K. Fritzell
BREEDING CANVASBACKS: A TEST OF A HABITAT MODEL ▪ D. H. Johnson, M. C. Hammond, T. L. McDonald, C. L. Nustad, and M. D. Schwartz
A CHECKLIST OF THE ANTS OF OKLAHOMA ▪ G. C. Wheeler and …
Agenda: Air Quality Protection In The West, University Of Colorado Boulder. Natural Resources Law Center
Agenda: Air Quality Protection In The West, University Of Colorado Boulder. Natural Resources Law Center
Air Quality Protection in the West (November 27-28)
Conference organizers, session moderators and/or speakers included University of Colorado School of Law professor Mark S. Squillace.
Visibility, acid rain, air toxics, and urban air pollution are the topics of an upcoming Center conference on air quality in the West. The conference will be held at the School of Law in Boulder on November 27-28, 1989. Presentations will describe the nature and scope of the issues, the existing legal framework and experience with its implementation, and proposed changes in the law. Emphasis will be placed on air quality issues in the West and efforts underway to address these problems. Special …
1989 Scholars And Artists Bibliography, Michael Schwartz Library, Cleveland State University, Friends Of The Michael Schwartz Library
1989 Scholars And Artists Bibliography, Michael Schwartz Library, Cleveland State University, Friends Of The Michael Schwartz Library
Scholars and Artists Bibliographies
This bibliography was created for the annual Friends of the Michael Schwartz Library Scholars and Artists Reception, recognizing scholarly and creative achievements of Cleveland State University faculty, staff and emeriti
Fisheries Report No 82 - Effects Of Fish Trapping On The Shark Bay Snapper Fishery, M. J. Moran, J. Jenke
Fisheries Report No 82 - Effects Of Fish Trapping On The Shark Bay Snapper Fishery, M. J. Moran, J. Jenke
Fisheries Research Reports
Traps have been a controversial method of catching pink snapper Chrysophrys auratus (Sparidae) around Shark Bay, Western Australia, since 1959. The history of the issue and the relevant regulations are reviewed; and results of investigations into specific concerns about trap fishing are reported. Concerns of ghost-fishing by lost traps have been largely allayed by underwater TV film of snapper escaping from a standard snapper trap.
A major concern was that traps might physically damage the benthic fauna, e.g. corals. A TV survey showed that while fragile hard corals are abundant in shallower water nearby, the deeper snapper grounds themselves are …
A Colorado River Basin Authority: Opportunity For Sharing River Basin Management And Resources, David H. Getches
A Colorado River Basin Authority: Opportunity For Sharing River Basin Management And Resources, David H. Getches
Boundaries and Water: Allocation and Use of a Shared Resource (Summer Conference, June 5-7)
32 pages.
Contains references.
Within The Hundredth Meridian: Western States And Their River Basins In A Time Of Transition, John M. Volkman, Kai N. Lee
Within The Hundredth Meridian: Western States And Their River Basins In A Time Of Transition, John M. Volkman, Kai N. Lee
Boundaries and Water: Allocation and Use of a Shared Resource (Summer Conference, June 5-7)
29 pages.
Contains footnotes.
The Delaware River Basin: Courts, Compacts And Commissions, R. Timothy Weston
The Delaware River Basin: Courts, Compacts And Commissions, R. Timothy Weston
Boundaries and Water: Allocation and Use of a Shared Resource (Summer Conference, June 5-7)
112 pages (includes illustrations and 1 map).
Contains references.
Study Of An Analytical Method For Benzo(A)Pyrene Metabolites In Human Urine, Zheng Ouyang
Study Of An Analytical Method For Benzo(A)Pyrene Metabolites In Human Urine, Zheng Ouyang
Theses
A method developed by Becher and Bjorseth for analysis of PAH metabolites in urine was employed to investigate human exposure to benzo(a)pyrene (BaP) - an ubiquitous environmental carcinogen. Preliminary results are presented showing the relationship between exposure to BaP and urinary elimination. Although the correlation between the two variables is not statistically significant, there appears to be a positive association with selected exposure varibles such as smoking. The identification of an association may establish urinary BaP as a marker of exposure.
However, detailed study of the analytical procedure indicated that recoveries with this method were as low as 3-8% for …
The Probe, Issue 90 - February 1989
The Probe, Issue 90 - February 1989
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE
National Animal Damage Control Association
FEBRUARY 1989
The Innocence of Deer
Euthanizing Cats
Personnel
Letters to Ye Ed
Squirrels & Gopher Bites
Animal Rights Movement
Animals Used in Science and Research