Digital Commons Network^™

Territorial Takeover In Common Loons (Gavia Immer), James D. Paruk

Wilson Bulletin

No abstract provided.

Habitat Use By Masked Ducks Along The Gulf Coast Of Texas, James T. Anderson, Thomas C. Tacha

Wilson Bulletin

No abstract provided.

Nesting Of Four Poorly-Known Bird Species On The Caribbean Slope Of Costa Rica, Bruce E. Young, James R. Zook

Wilson Bulletin

No abstract provided.

Sexual Dimorphism In The Song Of Sumichrast's Wren, Monica Perez-Villafana, Hector Gomez De Silva G., Atahualpa Desucre-Medrano

Wilson Bulletin

No abstract provided.

Front Matter (Pdf), Wilson Bulletin

Wilson Bulletin

No abstract provided.

The Probe, Issue 198 – March 1999

The Probe: Newsletter of the National Animal Damage Control Association

NADCA benefits its members
Fifth Annual Wildlife Control Technology Instructional Seminar
Bob Willging Fund Established
Woodstream Drops Victor Traps
Activist Gets 7 Years in Prison
Egret Control Goes Badly
Foxes Threaten Plovers in Maine
Controversy Boils In Arizona Predator Hunt Contests

Abstracts from the 5th Annual Conference of The Wildlife Society

The Prospect of Using Oral Vaccination to Control Rabies in Raccoons in the Northeast -- D.H. Lein and L.L. Bigler
Past and Current Methods for Controlling Rabies in Wildlife -- S.B. Linhart and C.L. Brown
Elimination of Fox Rabies from Ontario, Canada -- CD. Maclnnes
A Computer Model for …

Center For Sustainable Agricultural Systems Newsletter, March/April 1999

Center for Sustainable Agricultural Systems: Newsletter (1993–2000)

Contents:

We Came! We Saw! We Heard!

University Role in Biotechnology: Who Benefits From New Technologies?

Highlights of Upcoming Book: Under The Blade (Part 6)

Study Finds Consolidation Harms Nation's Consumers And Farmers

National Ag Biotech Meeting in Lincoln

Nordic Agroecology Course Welcomes Students

Agroecology Field Course Offered

The Judicial System In Israel, Amnon Straschnov

Tulsa Law Review

No abstract provided.

Hollins Columns (1999 Mar 1), Hollins College

Hollins Student Newspapers

Table of Contents:

• Elizabeth Dole: Will she be the first woman President?
• Bond speaks at Hollins
• Life outside the bubble
• RLA thanks Hollins
• Pointing the Finger: Where do we draw the line?
• Student Conduct Council
• Library to open in April, books to move over spring break
• Brendan Galvin: A conversation in poetry
• Marjorie Portnow wows students in the Art Annex
• The Road to Roommates
• Wishing for Rain in "Alabama Rain"
• French Film Festival showcases talents of women directors
• New CD, Is This Desire? Pops the Big Question
• Year 2000, Y2K Boom or Bust
• The Crush party features Carbon Leaf
• Moving …

Hudson-Delaware Region, Robert O. Paxton, Joseph C. Burgiel, David A. Cutler

North American Birds

No abstract provided.

1999 March-April, Office Of Communications & Marketing, Morehead State University.

Morehead State Press Release Archive, 1961 to the Present

Morehead State University press releases for March to April of 1999.

New England Region, Walter G. Ellison, Nancy L. Martin

North American Birds

No abstract provided.

Front Matter (Pdf), North American Birds

North American Birds

No abstract provided.

The Daily Egyptian, March 01, 1999, Daily Egyptian Staff

March 1999

No abstract provided.

Salt/Salinity Tolerance Of Common Horticultural Crops In South Dakota: Garden And Vegetable/Woody Fruit Crops, John Bischoff, Hal Werner

SDSU Extension Fact Sheets

No abstract provided.

Modeling Chemical Absorption Through Membranes, Jeffrey M. Hemmes

Theses and Dissertations

Understanding the processes involved in dermal penetration of chemicals and drugs is important to both toxicologists and pharmacologists. Researchers developing new drugs are interested in enhancing the penetration of chemicals through the skin, while environmental professionals are interested in limiting such penetration. For both types of applications, predictive biologically-based mathematical models can be very useful in understanding the processes involved, particularly when such models are based on physiological and biochemical parameters which can be measured experimentally. In this thesis we study two existing physiologically-based pharmacokinetic (PBPK) models that predict concentrations of neat and aqueous dibromomethane (DBM) absorbed into and through …

Protein Structure Prediction Using Parallel Linkage Investigating Genetic Algorithms, Karl R. Deerman

Theses and Dissertations

AFIT has had a long-standing interest in solving the protein structure prediction (PSP) problem. The PSP problem is an intractable problem that if "solved" can lead to revolutionary new techniques for everything from the development of new medicines to optical computer switches. The challenge is to find a reliable and consistent method of predicting the 3-dimensional structure of a protein given its defining sequence of amino acids. PSP is primarily concerned with predicting the tertiary protein structure without regards to how the protein came to this folded state. The tertiary structure determines the protein's functionality.

Substrate Availability In Solid Waste Landfills, Brian D. Benter

Theses and Dissertations

Numerous models exist to both predict and represent the many biological activities that occur in the modern landfill. These different models use varying methods of characterizing what is happening, what is thought to happen, or what should be happening based on both empirical data and theoretical reasoning. The model presented here is an extension of the system dynamics model originally presented by Colborn in 1997. The revamped model presents a different perspective on what happens as solid organic waste is transformed to simpler substances. This new view involves a bacterial population performing hydrolysis whose growth is limited by the amount …

Natural Attenuation Of Chlorinated Ethenes By Anaerobic Reductive Dechlorination Coupled With Aerobic Cometabolism, Derek D. Veerkamp

Theses and Dissertations

Chlorinated solvents and their daughter products are the most common contaminants of groundwater at industrial and military facilities in the United States. Limitations of conventional technologies have intensified efforts to find alternative methods to remediate contaminated sites to regulatory goals set by CERCLA. Natural attenuation of chlorinated solvents is a promising alternative to traditional pump and treat methods but has not been well understood or widely accepted. This modeling study investigated the ability of TCE to completely degrade under various aquifer conditions and rate order constants. It also examined a case study of a former landfill site at Moody AFB. …

Biodegradation Of Aircraft Deicing Fluid Components In Soil, Baron W. Burke

Theses and Dissertations

Aircraft de-icing fluids (ADFs) are used worldwide to ensure safe aircraft operations. This research effort was conducted to analyze the biodegradation effects of two chemical components of ADFs, propylene glycol (PG) and tolyltriazole (TTA), in a high-clay soil. The research used four test methods; automated respirometry, high performance liquid chromatography (HPLC), microbial colony population counts (MCPC), and agar well diffusion tests (AWDT). The research was partitioned into two phases of investigation. Phase-one analyzed individual and combined ADF chemical components on uncontaminated soil. The presence of TTA, from 25 - 1,000 mg/kg, reduced the maximum respiration rate of 1,000 mg/kg PG …

Cost-Benefit Analysis Of Cosolvent Flushing To Treat Groundwater Contamination Source Areas, Stacey L. Anason

Theses and Dissertations

Dense non-aqueous phase liquids (DNAPLs) in the zone beneath the water table can be a virtually permanent source of groundwater contamination that cannot be remediated by currently available technologies. Cosolvent flushing is a new technology that has the potential to remediate these sites and could pose a solution to the problem of DNAPL source areas. A computer model was developed to determine the cost and time to remediate an aquifer using cosolvent flushing. Included in the model is a module to calculate the costs of recycling the alcohol that is used as the cosolvent. The model was validated using site …

A Comparison Of Genetic Algorithm Parametrization On Synthetic Optimization Problems, Mehmet Eravsar

Theses and Dissertations

Meta-heuristics have been deployed to solve many hard combinatorial and optimization problems. Parameterization of meta-heuristics is an important challenging aspect of meta-heuristic use since many of the features of these algorithms cannot be explained theoretically. Experiences with Genetic Algorithms (GA) applied to Multidimensional Knapsack Problems (MKP) have shown that this class of algorithm is very sensitive to parameterization. Many studies use standard test problems, which provide a firm basis for study comparisons but ignore the effect of problem correlation structure. This thesis applies GA to MKP. A new random repair operator, which projects infeasible solutions into feasible region, is proposed. …

Pilot Inventory Complex Adaptive System (Picas): An Artificial Life Approach To Managing Pilot Retention, Martin P. Gaupp

Theses and Dissertations

The retention of skilled pilots continues to be a problem that plagues the United States Air Force. After spending millions of dollars on training and education, it is disheartening to see the mass exodus of experienced aviators from the Air Force that has been occurring in the past decade. Many blame the economy, others the Air Force itself but few are able to accurately predict how or why they are all leaving. The current personnel models do not adequately determine retention rates. Complex adaptive systems theory, however, might provide some insight. By modeling the system at the pilot's level, allowing …

Expeditious Method For Estimating Cleanup Costs At Department Of Defense Installations In Korea, John M. Griffin

Theses and Dissertations

The purpose of this research was to develop and test a method that can be used to expeditiously estimate costs of hazardous waste site remediation at US DoD installations in Korea allowing decision-makers to formulate remediation strategy. This objective was addressed through answering the following questions: (1) What cost and time constraints do the decision-makers have in developing remediation cost estimates; (2) What degree of accuracy do the decision-makers require in cost estimates; (3) What estimating models are available for determining costs of remediation activities; (4) Have models been used to estimate remediation activities' costs at Korean installations; and (5) …

South Dakota State University Bulletin Quarterly: 1999 Summer Term, South Dakota State University

South Dakota State University Catalogs and Bulletins: 1935 to present

No abstract provided.

Alumnews, March 1999, Alumni Association, Wright State University

AlumNews

Six page issue of the AlumNews newsletter. This newsletter focuses on news about programs, events, and activities for alumni from Wright State University.

Globalization And The Sustainability Of Human Health: An Ecological Perspective, Robert Costanza, A. J. Mcmichael, Bert Bolin, Gretchen C. Daily, Carl Folke, Kerstin Lindahl-Kiessling, Elisabet Lindgren, Bo Niklasson

Institute for Sustainable Solutions Publications and Presentations

The last half-century has seen momentous and accelerating changes in humankind's economic activities, political relations, and social and demographic profile. A prominent feature of this change is the increasing scale of human impact on Earth's natural biophysical systems: the climate system, stratospheric ozone, biodiversity, terrestrial and marine food-producing ecosystems, and the great cycles of water, nitrogen, and sulfur (Meyer 1996, Vitousek et al. 1997). These systems sustain the conditions on which life depends, and their weakening may therefore have profound long-term implications for human population health (McMichael 1993, Last 1997).

Infrared Cavity Ringdown Spectroscopy Of Methanol Clusters: Single Donor Hydrogen Bonding, R. A. Provencal, J. B. Paul, K. Roth, C. Chapo, R. N. Casaes, R. J. Saykally, G. S. Tschumper, H. F. Schaefer

Chemistry Faculty Research & Creative Works

Infrared cavity ringdown laser absorption spectroscopy has been used to study the O-H stretching vibrations of jet-cooled methanol clusters in direct absorption. Rovibrational bands for (CH₃OH)₂, (CH₃OH)₃, and (CH₃OH)₄ have been measured. Both bonded and free O-H stretches were measured for the dimer, indicating that its structure is linear. Five bands were assigned to the methanol trimer, indicating the presence of a second cyclic isomer in the molecular beam. A detailed study of the free O-H stretching region shows that methanol clusters larger than dimer must exist in cyclic …

March- April 1999, University Of North Dakota Alumni Association

ALL: UND Alumni Review Master List

March- April 1999 issue of "The University of North Dakota Alumni Review." 24 pages

Volume 81, Number 5

Factors Affecting Master Sergeants' Completion Of Community College Of The Air Force Aas Degree Requirements, Marie F. Kraska, James R. Larkins Jr.

Journal of STEM Teacher Education

No abstract provided.