Digital Commons Network^™

Hydrogen And Oxygen Isotope Fractionation Between Brucite And Aqueous Nacl Solutions From 250 To 450°C, Peter Saccocia, J. S. Seewald, W. C. Shanks Iii

Geological Sciences Faculty Publications

Hydrogen and oxygen isotope fractionation factors between brucite and aqueous NaCl solutions (1000lnα_br-sw) have been calibrated by experiment from 250 to 450°C at 0.5 Kb. For D/H fractionation, 1000lnα _br-sw values are as follows: −32 ± 6‰ (250°C, 3.2 wt% NaCl), −21 ± 2‰ (350°C, 10.0 wt% NaCl), and −22 ± 2‰ (450°C, 3.2 wt% NaCl), indicating that brucite is depleted in D relative to coexisting aqueous NaCl solutions. These results are in good agreement with previous D/H fractionation factors determined in the brucite-water system, indicating that any effects of dissolved salt on D/H fractionation are relatively small, …

Symposia

Journal of the Minnesota Academy of Science

Abstracts from the Symposia Papers given at the 66^th Annual Meeting for the Journal of the Minnesota Academy of Science.

Climatology And Interannual Variability Of Wind Speeds In And Around Minnesota, Kevin J. Lawless, Katherine Klink

Journal of the Minnesota Academy of Science

Wind is receiving renewed attention as an energy resource. Unfortunately, many wind energy assessments are based on records that may not be representative of the long-term wind resource. To better evaluate wind energy potential in and around Minnesota, we analyze wind speeds from 1961 to 1990 for seven stations in the region at a height of about 6.1 m above ground level. We used hourly and three-hourly speed observations to develop a 30-year time series of mean monthly wind speeds, their maxima and minima, and the diurnal wind speed range. Simple linear regression was used to evaluate long-term trends in …

Common Runtime Support For High Performance Languages, Geoffrey C. Fox

Northeast Parallel Architecture Center

Widespread adoption of parallel computing depends on the availability of improved software environments. An essential component of these environments will be high-level languages. Several languages for exploiting data-parallelism (or task-parallelism) have been developed, or are under development. The stated goal of this project has been to provide a public domain infrastructure for runtime support of these high-level languages. The targeted languages include parallel versions of Fortran and C++, but our intention has been to provide uniform runtime support for many source languages.

Resource Law Notes Newsletter, No. 42, Winter Issue, Feb. 1998, University Of Colorado Boulder. Natural Resources Law Center

Resource Law Notes: The Newsletter of the Natural Resources Law Center (1984-2002)

No abstract provided.

Creative Experiences For Environmental Awareness, Including A Simulated Camp: Thematic Units For Grades Three And Four, Carol Ann Waitman

Theses Digitization Project

The project is an activity based, interdisciplinary curriculum for a simulated outdoor camp that occurs primarily within the elementary classroom. The purpose of the camp is to increase the students' level of awareness of and appreciation for the outdoors.

Environmental Science Curriculum For Eleventh Through Twelfth Grade Classes, Jenelle Sue Bryan

Theses Digitization Project

No abstract provided.

Challis Resource Area Proposed Resource Management Plan And Final Environmental Impact Statement, United States Department Of The Interior, Bureau Of Land Management

Resource Management Plans (ID)

The Challis Proposed Resource Management Plan/Final Environmental Impact Statement (PRMP/FEIS) describes the Bureau of Land Management's proposed plan for managing approximately 792,567 acres of public lands administered by the BLM within the Challis Resource Area. The PRMP/FEIS is based on the Preferred Alternative (Alternative 2) described in the Challis Draft RMP/EIS (BLM, May 1996), as modified in response to public and tribal comments and internal BLM recommendations. It describes changes from and corrections to the Challis Draft RMP/EIS, updates the discussion of the affected environment, provides an analysis of environmental consequences for the Proposed RMP, and records public comments and …

An Inventory And Condition Survey Of The Sandstone-Yalgoo-Paynes Find Area, Western Australia, A L. Payne, A M E Van Vreeswyk, K A. Leighton, H J. Pringle, P Hennig

Technical Bulletins

The inventory and condition survey of the Sandstone-Yalgoo-Paynes Find area, undertaken by the Department of Agriculture and Food, Western Australia (DAFWA) between 1992 and 1993, describes and maps the natural resources of the region’s pastoral leasehold land. This survey report provides a baseline record of the existence and condition of the area’s natural resources, to assist with the planning and implementation of land management practices. The report identified and described the condition of soils, landforms, vegetation, habitat, ecosystems, and declared plants and animals. It also assessed the impact of pastoralism and made land management recommendations. The area surveyed covers about …

Ua56/1 Fact Book, Wku Institutional Research

WKU Administration Documents

Statistical and demographic profile of WKU.

The Uses Of Existing Information In The Process Of Setting Social Standards For Proposed Wilderness Areas Of Zion National Park, Mark E. Vande Kamp

Elusive Documents

No abstract provided.

Challis Resource Area Proposed Resource Management Plan And Final Environmental Impact Statement Volume 2 (Of 2), United States Department Of The Interior, Bureau Of Land Management

Resource Management Plans (ID)

The climate of the Challis Resource Area is influenced primarily by maritime air carried eastward on prevailing westerly winds. General climatic characteristics are abundant sunshine, low humidity, and high evaporation. The major precipitation source, particularly for winter storms, is the Northern Pacific Ocean. In the summer, however, most of the thunderstorm activity is caused by moisture-laden air originating from the south, off the Pacific coast of Mexico.

Linking People, Purpose, And Place: An Ecological Approach To Agriculture, Heidi Carter, Richard Olson, Charles A. Francis

CARI Extension and Education Materials for Sustainable Agriculture

Linking Ecology and Agriculture

Whole Farm Planning

Soil Quality

Agroforestry

Grazing Systems

Weed and Insect Management

Farmer Groups

Farmland Conversion

Resources and Information Sources

Estimating Vegetation Structural Effects On Carbon Uptake Using Satellite Data Fusion And Inverse Modeling, Gregory P. Asner, C. Ann Bateson, Jeffrey L. Privette, Nazmi El Saleous, Carol A. Wessman

United States National Aeronautics and Space Administration: Publications

Regional analyses of biogeochemical processes can benefit significantly from observational information on land cover, vegetation structure (e.g., leaf area index), and biophysical properties such as fractional PAR absorption. Few remote sensing efforts have provided a suite of plant attributes needed to link vegetation structure to ecosystem function at high spatial resolution. In arid and semiarid ecosystems (e.g., savannas), high spatial heterogeneity of land cover results in significant functional interaction between dominant vegetation types, requiring new approaches to resolve their structural characteristics for regional-scale biogeochemical research. We developed and tested a satellite data fusion and radiative transfer inverse modeling approach to …

The Fungi, Lichens, And Myxomycetes Of Iowa: A Literature Review And Evaluation, Lois H. Tiffany, George Knaphus

Journal of the Iowa Academy of Science: JIAS

The fungi have been, and continue to be, a poorly documented portion of Iowa’s biological inheritance. Although many are perennially present in soil and plant debris and are crucially involved in the release and recycling of materials from organic residues or are partners with plant roots as mycorrhizae, they are not obvious until they produce fruiting structures such as mushrooms, boletes, brackets, puffballs, etc. The fungi causing plant disease are more obvious because of the reactions of their host plants; thus the earliest records of Iowa fungi are of ones causing plant diseases commonly referred to as mildews, rusts, and …

Effect Of Electronic Portfolio Assessments On The Motivation And Computer Interest Of Fourth And Fifth Grade Students In A Massachusetts Suburban School, Paul V. Montesino

CCAC Theses and Dissertations

A preliminary causal-comparative study was conducted in an elementary suburban school in Massachusetts to investigate the impact of electronic portfolio assessments in student's intrinsic motivation and computer interest.

The target population were two groups of fourth grade and two groups of fifth grade students for a total of 77 subjects. They were trained and introduced to electronic portfolio assessments, a program which lasted for the entire school year. The students used Hyper Studio, a multimedia software program developed and marketed by Roger Wagner Publishing, Inc.

It was the intention of the elementary school program directors and teachers that students would …

1998 Platte River Basin Ecosystem Symposium Proceedings

Water Current Newsletter

No abstract provided.

University Of Texas At Tyler Freshman Catalog, 1998-1999, University Of Texas At Tyler

Catalogs

Archives Space instance: https://archivesspace.uttyler.edu/repositories/2/archival_objects/22363

Environmental Stress Effects On Vigor, Mortality, And Growth In Northern Hardwood Forests Along A Pollution-Climate Gradient, Neil W. Macdonald, John A. Witter, David R. Reed, Andrew J. Burton, Kurt S. Pregitzer, Hal O. Liechty

Peer Reviewed Publications

Concern exists over the effects of interacting environmental stresses on the ecological integrity of temperate forests. Coincidence of sensitivity to drought, increasing occurrence of defoliation, and elevated pollutant deposition has produced speculation that northern hardwood forests may be susceptible to the increased climatic stresses projected for the Great Lakes region. The objective of our study was to examine relationships among environmental stress factors, vigor, mortality, and growth in northern hardwood forests located along a pollution-climate gradient in the Great Lakes region. Between 1987 and 1993, we quantified climatic variables, pollutant deposition, insect defoliation, and tree vigor and growth at five …

Mea Culpa: Formal Education And The Dis-Integrated World., Brian P. Coppola, Douglas S. Daniels

Chemistry Faculty Publications

Formal education has removed itself so far from any truly integrated view of the Natural World that fragmentation and certainty are prevailing ethics. Technological progress has resulted in increased specialization within academic disciplines and their concurrent separation from each other. Knowledge is extracted from a fully integrated world, but is examined and defined by the 'dis-integrated' objectives.

Land Transformation, Highly Governed Landscapes And Landscape Health: A Case Study Of The Lower Piave Area Of Northeastern Italy, Pietro Bertollo

Theses and Dissertations (Comprehensive)

This dissertation examines the issue of biophysical landscape health. Its primary objective is to produce an interpretation of biophysical landscape health for the highly governed landscapes of the Lower Piave area of northeastern Italy. Highly governed landscapes are considered to be those which are highly controlled by humans to an even greater degree than normal cultural landscapes. An example is reclaimed agricultural landscapes such as those of the northeastern Italian coastal belt, from which the Lower Piave case study is drawn. These landscapes are highly governed because without constant human intervention, they would revert back to their former marsh state. …

Description Of The Sections And Subsections Of The Interior Highlands Of Arkansas And Oklahoma, Thomas L. Foti, George A. Bukenhofer

Journal of the Arkansas Academy of Science

Sections and subsections of the Interior Highlands of Arkansas and Oklahoma are redefined, mapped and briefly summarized. The map was produced to support the Ozark- Ouachita Highlands Assessment (OOHA), being conducted by the USDA Forest Service. It revises the USDA Forest Service map "Ecological units of the eastern United States, first approximation" by Keys et al. (1995) and the earlier maps of the natural divisions of Arkansas (Foti, 1974; Foti, 1976; Pell, 1983) to reflect new knowledge and to achieve consistency with units recognized in Missouri. Four sections (natural divisions) are defined as opposed to the three of the previous …

Glacial Deposits, Vol. 26, 1997-1998, Department Of Geography-Geology

Glacial Deposits

Newsletter of the Department of Geography-Geology

Evidence For Damaging Historical Earthquakes At Priene, Western Turkey, Erhan Altunel

Turkish Journal of Earth Sciences

The ancient cilty of Priene was one of the earliest Ionian settlements within the western part of the Büyük Menderes valley (the ancient Maeander River) and was first founded about 8 km in the east of the present site. The old Priene was probably destroyed by a destructive earthquake in the 350s BC and the city was shifted to the existing place in 350 BC. The new city contains an abundance of evidence related to earthquakes. The following evidence indicates that damaging earthquakes, occurred in the Büyük Menderes graben, caused great damage to the new Priene. (1) Part of the …

Protection Of Wetlands In The Grand River Watershed From Non-Point Source Pollution (Ontario), Marsha Lynn Paley

Theses and Dissertations (Comprehensive)

The purpose of this study is to assess the strengths and weaknesses of the municipal official plans to protect provincially evaluated wetlands from activities causing non-point source pollution within the Grand River watershed. An integrated framework for policy analysis involving both an evaluative and normative approach assists in determining the value of wetland protection policies and recommends future actions to guide decision-making on development adjacent to wetlands. Specifically, the objectives include (a) to locate, identify and measure the total wetland area, class and number of wetlands in the Grand River watershed on an upper- and lower-tier municipal basis; (b) to …

Contaminated Communities: A Video Documentary Of The Alberton, Montana Mixed-Chemical Spill And An Analysis Of How Its Effects On Toxics Victims Fits Into A Larger Contamination Framework From A Political Ecology Perspective, Lisa A. Mosca

Graduate Student Theses, Dissertations, & Professional Papers

The small rural mountain town of Alberton, MT located 32 miles west of Missoula, MT was the 1996 site of the largest contamination event in railroad history involving a mixture of chemicals. On April 11, 1996 a Montana Rail Link train derailed just west of the town of Alberton, leaking 130,000 pounds of chlorine gas, 17,000 of potassium cresylate (spent oil refinery waste), and 85 dry bulk pounds of sodium chlorate into the Alberton environment. Approximately 1000 people were evacuated from their homes, many for the seventeen day evacuation period that followed. The video documentary project that I embarked on …

Trace Element Signatures In Otoliths Record Natal River Of Juvenile American Shad (Alosa Sapidissima), Simon R. Thorrold, Cynthia M. Jones, Steven E. Campana, James W. Mclaren, Joseph W. H. Lam

OES Faculty Publications

The elemental composition of fish otoliths may represent a permanent record of the environmental conditions an individual has experienced as trace elements, incorporated into the growing surface of the otolith, reflect the physical and chemical characteristics of the ambient water. We tested the utility of trace element signatures in otoliths as natural tags of the river of origin of juvenile American shad (Alosa sapidissima) collected from the Connecticut, Hudson and Delaware Rivers in August and October 1994. Four elements (K, Mn, Sr, and Ba) showed significant variability among sites within rivers in August, although only Mg showed a …

An Approach To Defining Greater Park Ecosystems And Its Application To Gros Morne National Park (Newfoundland), Karl Keough

Theses and Dissertations (Comprehensive)

Ecosystem management is an integrative, cooperative, adaptive approach to resource management that has evolved in response to the growing number of environmental and resource problems over the past several decades. One such problem, the threat to the world’s biodiversity, may be attributed to the destruction, degradation, and fragmentation of habitat resulting from the expanding human population, and the inability to set aside in strict nature reserves, sufficient habitat for wide-ranging mammals and fully functioning ecosystems. The Greater Park Ecosystem concept may be seen as the embodiment of ecosystem management in national parks and a response to the threat to biodiversity. …

Stakeholder Attitudes As A Resistance Toward Long-Range Management Of A Threatened Landscape: A Case Study Of Aggregate Use In The Township Of North Dumfries (Ontario), Kim Margaret Horrigan

Theses and Dissertations (Comprehensive)

The Township of North Dumfries is located in the rapidly expanding Municipality of Waterloo. This Township is in close proximity to Kitchener, Waterloo, Cambridge, Guelph, Hamilton, and is halfway between London and Toronto, with the primary east-west Highway 401 running through the Township. It is an unique area in that it is characterized by an abundance of prime agricultural lands, Environmentally Sensitive Policy Areas, and wetlands. In addition, the Township is underlain with a large quantity of good quality glacially derived aggregate materials. Land use conflicts have increased as a result of aggregate developers’ pressures on the resources of this …

Managing Urban Water Resources In A Developing Economy: The Case Of Owerri, Nigeria, Lawrence Chidi Anukam

Theses and Dissertations (Comprehensive)

Projections indicate that the disparity in population numbers will widen further by the year 2025 when the global population is expected to be 8.5 billion, and at that time about 84% will be living in the developing countries (World Resources Institute, 1992). The greatest proportional increase will occur in Africa, where the population is projected to nearly triple, from a 1990 level of 642 million to 1.6 billion in 2025. In 1997, the population of Nigeria alone was about 100 million, making it the largest country, in terms of population, in Africa. From 1960 to 1990, the average annual population …