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Articles 71281 - 71310 of 78805
Full-Text Articles in Entire DC Network
A Partnership For Coral Reef Protection: A Case Study Of The International Coral Reef Initiative, Karla M. Boreri
A Partnership For Coral Reef Protection: A Case Study Of The International Coral Reef Initiative, Karla M. Boreri
Marine Affairs Theses and Major Papers
Coral reef are considered the most biologically diverse marine ecosystems on earth. They are a world-wide symbol of the economic and ecological importance of all types of coastal environments. The International Coral Reef Initiative (ICRI) was developed in 1994 to increase the awareness of the human and anthropogenic threats facing reefs. Initially a U.S.-focused initiative, ICRI now includes over 70 like-minded governments and a growing list of UN organizations, science and academic organizations, non-governmental organizations and the private sector as its partners. This qualitative case study was developed based on actual participation in the initiative and hundreds of pages of …
The Influence Of Sea Power Upon Oceanography: A Historical And Policy Analysis Of Governmental Support For Marine Science, Daniel Stuart Schwartz
The Influence Of Sea Power Upon Oceanography: A Historical And Policy Analysis Of Governmental Support For Marine Science, Daniel Stuart Schwartz
Marine Affairs Theses and Major Papers
In a time of austere funding for national ocean science R & D programs and Congressional balanced budget constraints, marine science investigators and program managers must increasingly ponder how committed to the support of oceanography our government will continue to be. The questions might better be phrased as how, in the absence of a credible open-ocean naval threat (the traditional focus of both basic and applied research), will policy makers justify the expenditure of scarce public revenues on marine science programs? Sea Power-as broadly defined in the works of Alfred Thayer Mahan and Sergei Gorshkov-has driven, and will continue to …
Trends In Abundance Of The Gulf Of Maine Population Of Harbor Porpoise, Paula Ann Olson
Trends In Abundance Of The Gulf Of Maine Population Of Harbor Porpoise, Paula Ann Olson
Marine Affairs Theses and Major Papers
Hundreds of harbor porpoise die each year as bycatch in the Gulf of Maine's sink gillnet fishery. In recent years, concern has arisen whether the Gulf of Maine population of harbor porpoise can sustain this level of bycatch. It is believed that the population may have declined, or is declining as a result of the incidental moralities. This paper reviews what is known about Gulf of Maine harbor porpoise demographics and how that information is incorporated into the management of the porpoise/fishery interaction. Included in this paper is a new study on the trend of relative abundance of harbor porpoise …
Protection Of Marine Fish Habitat: Towards An Integrated Approach To Management, Andrea L. Oliver
Protection Of Marine Fish Habitat: Towards An Integrated Approach To Management, Andrea L. Oliver
Marine Affairs Theses and Major Papers
This paper focuses on the problems associated with marine fish habitat protection and conservation at the federal level in the United States. The intent of the study is to provide a general overview of the issues, impacts, management problems and potential solutions. Federal statutory legislation that impacts marine fish habitat and agency authority derived from those legislative mandates are examined with a view toward promoting integrated management for marine biodiversity and overall ecosystem health. The concepts of coordinated and integrated approaches to management are discussed in the context of the present management regimes. Given the fragmented authority over the policy …
Sources Of Epidemiological Equivocacy, Timothy Sly
Sources Of Epidemiological Equivocacy, Timothy Sly
RISK: Health, Safety & Environment (1990-2002)
Mr. Sly discusses five sources of uncertainty and ambiguity in health and medical research that can interfere with decision making.
Neural Computation Of The Eigenvectors Of A Symmetric Positive Definite Matrix, Wenyu Julie Tsai
Neural Computation Of The Eigenvectors Of A Symmetric Positive Definite Matrix, Wenyu Julie Tsai
Theses Digitization Project
No abstract provided.
The Mandelbrot Set, Jeffrey Francis Redona
The Mandelbrot Set, Jeffrey Francis Redona
Theses Digitization Project
No abstract provided.
Hierarchical Growing Cell Structures, Vanco Burzevski, Chilukuri K. Mohan
Hierarchical Growing Cell Structures, Vanco Burzevski, Chilukuri K. Mohan
College of Engineering and Computer Science - Former Departments, Centers, Institutes and Projects
We propose a hierarchical self-organizing neural network ("HiGS") with adaptive architecture and simple topological organization. This network combines features of Fritzke's Growing Cell Structures and traditional hierarchical clustering algorithms. The height and width of the tree structure depend on the user-specified level of error desired, and the weights in upper layers of the network do not change in later phases of the learning algorithm. Parameters such as node deletion rate are adaptively modified by the learning algorithm.
More Than Trees: An Interdisciplinary, Literature-Based Unit, Emphasizing Drama And Hands-On Activities, Tracee Joanne Vickery
More Than Trees: An Interdisciplinary, Literature-Based Unit, Emphasizing Drama And Hands-On Activities, Tracee Joanne Vickery
Theses Digitization Project
This guide was developed to provide a hands-on, interdisciplinary curriculum, based on children's literature for grades four through six. It is a resource for teachers incorporating environmental education into their regular curriculum, revolving around a common theme, trees.
The Development Of An Ecological Teaching Perspective: A Teacher Education Program, Caroline Conway Kolbert
The Development Of An Ecological Teaching Perspective: A Teacher Education Program, Caroline Conway Kolbert
Theses Digitization Project
This project describes a four-year teacher education program conducted at the Living Desert, a botanical and wildlife park located in Palm Desert, California. The program brought 12 classroom teachers and 3 zoological educators together to expand their understanding and practice of environmental education. This project concentrates on how the program affected my educational philosophy, strategy and practice as an educator at The Living Desert, and how it shifted the focus of our department's docent (volunteer guide) education in general.
Amazopoly A Game Of Survival In A Tropical Rain Forest, Michael William Morris
Amazopoly A Game Of Survival In A Tropical Rain Forest, Michael William Morris
Theses Digitization Project
No abstract provided.
Incorporating Environmental Education Into The Curriculum Through The Use Of Children's Literature, Tina Marie Prosch
Incorporating Environmental Education Into The Curriculum Through The Use Of Children's Literature, Tina Marie Prosch
Theses Digitization Project
No abstract provided.
An Overview Of Environmental Development In The Game Parks Of Kenya, Carolyn G. Ginter
An Overview Of Environmental Development In The Game Parks Of Kenya, Carolyn G. Ginter
Theses Digitization Project
Kenya has one of the oldest and most developed national park and reserve systems among developing nations in Africa. Kenya's ecosystems have felt the impact of tourists, from big game hunters to photographic safaris, for over a century. This project contains the research on which the author intends to base a future book about Kenyan ecoturism for the general public.
Condensation Of Supersaturated Vapors Of Hydrogen Bonding Molecules: Ethylene Glycol, Propylene Glycol, Trimethylene Glycol, And Glycerol, David B. Kane, M. Samy El-Shall
Condensation Of Supersaturated Vapors Of Hydrogen Bonding Molecules: Ethylene Glycol, Propylene Glycol, Trimethylene Glycol, And Glycerol, David B. Kane, M. Samy El-Shall
Chemistry Publications
The critical supersaturations required for the homogeneous nucleation (rate of 1 drop cm−3 s−1) of ethylene glycol, propylene glycol, trimethylene glycol and glycerol vapors have been measured over wide temperature ranges (e.g., 280–400 K) using an upward thermal diffusion cloud chamber. At lower temperatures the experimental nucleation rates are much higher than the predictions of the classical nucleation theory. Glycerol shows the best agreement between experiment and theory in the temperature range of 340–370 K. An apparent increase in the critical supersaturation of glycerol is observed with increasing carrier gas (helium) pressure and this effect is more …
Land Use Patterns In Relation To Lake Water Quality In The North Pond Watershed, Problems In Environmental Science Course (Biology 493), Colby College, Colby Environmental Assessment Team, Colby College
Land Use Patterns In Relation To Lake Water Quality In The North Pond Watershed, Problems In Environmental Science Course (Biology 493), Colby College, Colby Environmental Assessment Team, Colby College
Colby College Watershed Study: East and North Ponds (2011, 1999, 1996, 1991)
Human activity within the watershed can greatly accelerate the eutrophication process by increasing the rate at which nutrients such as phosphorus and nitrogen enter the lake (Fernandez et al. 1992). Increased nutrient loading causes dramatic increases in algal populations resulting in algal blooms. Many New England lakes develop a greenish tint because of algal blooms during early summer or early fall. Populations of bacteria which feed on organic material rise because of increased food supply. Bacterial activity decreases the level of dissolved oxygen in the lake (Henderson-Seller and Markland, 1987). A sharp decrease in dissolved oxygen levels can cause massive …
Fire-Bgc -- A Mechanistic Ecological Process Model For Simulating Fire Succession On Coniferous Forest Landscapes Of The Northern Rocky Mountains, United States Department Of Agriculture, Forest Service
Fire-Bgc -- A Mechanistic Ecological Process Model For Simulating Fire Succession On Coniferous Forest Landscapes Of The Northern Rocky Mountains, United States Department Of Agriculture, Forest Service
Forestry
An ecological process model of vegetation dynamics mechanistically simulates long-term stand dynamics on coniferous landscapes of the Northern Rocky Mountains. This model is used to investigate and evaluate cumulative effects of various fire regimes, including prescribed burning and fire exclusion, on the vegetation and fuel complex of a simulation landscape composed of many stands. Detailed documentation of the model FIRE-BGC (a FIRE BioGeoChemical succession model) with complete discussion of all model parameters is followed with results of an application of the FIRE-BGC to a whitebark pine landscape in the Bob Marshall Wilderness complex. Simulation results of several management scenarios are …
An Improved Synthesis Of 2-(Hydroxymethyl)Indene, Hasan Palandoken, William T. Mcmillen, Michael H. Nantz
An Improved Synthesis Of 2-(Hydroxymethyl)Indene, Hasan Palandoken, William T. Mcmillen, Michael H. Nantz
Chemistry and Biochemistry
No abstract provided.
South Manti Timber Salvage Sales Environmental Assessment, United States Forest Service
South Manti Timber Salvage Sales Environmental Assessment, United States Forest Service
All U.S. Government Documents (Utah Regional Depository)
This environmental assessment (EA) is intended to foster informed decision making and public participation on a site-specific proposal to implement activities designed to meet the purpose and need and goals and objectives of the Manti-La Sal National Forest Land and Resources Management Plan (Forest Plan). This EA discloses the direct, indirect, and cumulative environmental impacts of three action alternatives for timber harvest and road construction, and a no action alternative on portions of the Ferron/Price and Sanpete Ranger Districts, Manti-La Sal National Forest in Sanpete and Sevier Counties, Utah. The area to be analyzed in support of this decision includes …
Dutch Experience In Irrigation Water Management Modelling, B J. Van Den Broek
Dutch Experience In Irrigation Water Management Modelling, B J. Van Den Broek
All U.S. Government Documents (Utah Regional Depository)
Modeling the soil-water-crop atmosphere system to improve agricultural water management in arid zones (SWATRE); Groundwater approach to drainage design in irrigated agriculture (SGMP); Computer Program for flume and weir design (FLUME 3.0); A hydrodynamic model in the design of operational controllers for water systems (MODIS/MATLAB); Decision support simulation model for water management at a regional and national scale (SIWARE); Management of water delivery systems (RIBASIM/OMIS); A water allocation, scheduling, and monitoring program (WASAM); and Irrigation agencies, farmers and computational decision support tools.
Bats, Veda Depaepe, Terry A. Messmer, Michael R. Conover
Bats, Veda Depaepe, Terry A. Messmer, Michael R. Conover
All Archived Publications
No abstract provided.
Residential Radon-222 Exposure And Lung Cancer: Exposure Assessment Methodology, R. William Field, Daniel J. Steck, Charles F. Lynch, Christine P. Brus, John S. Neuberger, Burton C. Kross
Residential Radon-222 Exposure And Lung Cancer: Exposure Assessment Methodology, R. William Field, Daniel J. Steck, Charles F. Lynch, Christine P. Brus, John S. Neuberger, Burton C. Kross
Physics Faculty Publications
Although occupational epidemiological studies and animal experimentation provide strong evidence that radon-222 (222Rn) progeny exposure causes lung cancer, residential epidemiological studies have not confirmed this association. Past residential epidemiological studies have yielded contradictory findings. Exposure misclassification has seriously compromised the ability of these studies to detect whether an association exists between 222Rn exposure and lung cancer. Misclassification of 222Rn exposure has arisen primarily from: 1) detector measurement error; 2) failure to consider temporal and spatial 222Rn variations within a home; 3) missing data from previously occupied homes that currently are inaccessible; 4) failure to link …
Pathogenicity Of Septoria Aquilina Isolated From Black Hills Bracken, A. Gabel, C. Salazar
Pathogenicity Of Septoria Aquilina Isolated From Black Hills Bracken, A. Gabel, C. Salazar
Journal of the Iowa Academy of Science: JIAS
Septoria aquilina, a pathogenic fungus isolated from Pteridium aquilinum growing in the Black Hills was studied from 1991-1995. S. aquilina sprayed at 8,000 conidia/ml on transplanted fronds followed by high humidity caused severe necrosis seven days after inoculation and disease severity increased until fronds died. Severe necrosis also developed from inoculations at 4,000 and 2,000 conidia/ml. Less severe symptoms developed from inoculations at 1,000 conidia/ml. Inoculations at 4,000 conidia/ml not followed by high humidity caused less necrosis than inoculations at the same concentration with high humidity. Inoculations at 4,000, 2,000, and 1,000 conidia/ml on fronds grown from spores caused similar …
An Nmr Investigation Of The Effect Of Hydrogen Bonding On The Rates Of Rotation About The C-N Bonds In Urea And Thiourea, Karl A. Haushalter, Janice Lau, John D. Roberts
An Nmr Investigation Of The Effect Of Hydrogen Bonding On The Rates Of Rotation About The C-N Bonds In Urea And Thiourea, Karl A. Haushalter, Janice Lau, John D. Roberts
All HMC Faculty Publications and Research
The interaction between urea and tetrabutylammonium acetate was investigated in dimethylformamide/ dimethyl sulfoxide solutions using ¹H and 15^N NMR. The chemical-shift behavior of the urea protons is consistent with a urea-acetate hydrogen-bonded complex involving both carboxylate oxygens and the urea hydrogens trans to the carbonyl oxygen with K_assoc = 120 ± 10. Line shape analysis of the temperature-dependent ¹H NMR spectra show that ∆G^‡ for rotation about the C-N bond of urea changes only slightly from 11.0 ± 0.1 to 11.2 ± 0.1 kcal/mol on 1:1 molar addition of tetrabutylammonium acetate to a dilute solution of urea. A parallel investigation …
Highly Reactive Form Of Copper And Reagents Thereof, Reuben D. Rieke
Highly Reactive Form Of Copper And Reagents Thereof, Reuben D. Rieke
Department of Chemistry: Faculty Publications
A novel Zerovalent copper species and an organocopper reagent are disclosed. The Zerovalent copper species is directly produced by reaction of a reducing agent with a combination of copper(I) cyanide or halide and an alkali metal halide salt. The organocopper reagent resulting from the reaction of the zerovalent copper species and an organic compound having one or more stable anionic leaving groups is a stable reagent that will not significantly homocouple and under controlled conditions tolerates the presence of nitrile, epoxide, imine, enone, ketone, ester, allyl and benzyl groups within the organo radical. The reagent can be controlled so that …
Characterization Of Ground And Excited Electronic State Deprotonation Energies Of Systems Containing Double Bonds Using Natural Bond Orbital Analysis, J. K. Badenhoop, Steve Scheiner
Characterization Of Ground And Excited Electronic State Deprotonation Energies Of Systems Containing Double Bonds Using Natural Bond Orbital Analysis, J. K. Badenhoop, Steve Scheiner
Chemistry and Biochemistry Faculty Publications
Natural bond orbital analysis is applied to the ground and excited states of a set of neutral, cationic, and anionic doubly bonded species HnC=XHn (X=C, N, O) isoelectronic with ethylene. The character of the excitation is correlated with calculated charge shifts and geometry changes upon relaxation. For these planar molecules, depopulation of the π bond or population of the π∗ antibond causes an out‐of‐plane twist or pyramidalization upon relaxation correlated to the amount of charge shift. These nonplanar distortions generally lower the energy more than changes in bond lengths and angles. Population of a σXH∗ …
Santa Clara Magazine, Volume 38 Number 1, Winter 1996, Santa Clara University
Santa Clara Magazine, Volume 38 Number 1, Winter 1996, Santa Clara University
Santa Clara Magazine
8 - GERALD UELMEN: BACK IN THE CLASSROOM The School of Law professor and co-counsel for the O.J. Simpson defense reflects on the "trial of the century" and assesses its impact on legal education. Interview by Elise Banducci '87
12 - MARRIED WITHOUT CHILDREN Childless couples challenge deeply held beliefs about marriage and family. By Kath1yn Bold '81
16 - PORTRAIT OF THE ARTIST Gerald Sullivan, S.J., answers the questions "Why figurative painting?" "Why liberal arts?" and "Why dogs?" By Miriam Schulman
20 - PASSPORT TO KNOWLEDGE Study abroad programs in Italy and around the world push beyond traditional borders. …
A Constructivist Study Of University Curricular Attributes And Faculty Leadership In Support Of Environmental Sustainability, Esther Jane Ross, Gary Mcmane
A Constructivist Study Of University Curricular Attributes And Faculty Leadership In Support Of Environmental Sustainability, Esther Jane Ross, Gary Mcmane
Theses Digitization Project
No abstract provided.
The Role Of The Federal Aid In Sportfish Restoration Program In Promoting State Marine Artificial Reef Development Activities, Loren Clark Evans
The Role Of The Federal Aid In Sportfish Restoration Program In Promoting State Marine Artificial Reef Development Activities, Loren Clark Evans
Marine Affairs Theses and Major Papers
The passage of the Wallop-Breaux Amendments to the Federal Aid in Sportfish Restoration Program (FASRP), in 1984, significantly increased the funding available to states participating in the Program. Subsequently, the FASRP became the largest single source of funding for state marine artificial reef development activities. In recent years, there has been concern among program constituents that FASRP funds are not being utilized as intended. The principle question of the current research focused on how effective FASRP subsidies have been in providing meaningful benefits to state fisheries management programs. Specifically, the research focused on the application of FASRP monies in promoting …
County, Colorado, Prowers County, Colorado Watershed Plan And Environmental Assessment, Bent Soil Conservation District, Natural Resources Conservation Service
County, Colorado, Prowers County, Colorado Watershed Plan And Environmental Assessment, Bent Soil Conservation District, Natural Resources Conservation Service
Environmental Assessments (NV)
No abstract provided.
Fontenelle Natural Gas Infill Drilling Projects, Sweetwater And Lincoln Counties, Wyoming, Final Environmental Impact Statement, United States Department Of The Interior Bureau Of Land Management
Fontenelle Natural Gas Infill Drilling Projects, Sweetwater And Lincoln Counties, Wyoming, Final Environmental Impact Statement, United States Department Of The Interior Bureau Of Land Management
Final Environmental Impact Statements (WY)
DALEN Resources Oil & Gas Co. (DALEN Operator) and Cabot Oil & Gas Corp., Presidio Oil Co., and several other companies (collectively the Lincoln Road Operators) propose to continue infill drilling their existing lease acreage (collectively approximately 179,760 acres) within the Fontenelle II and Lincoln Road development areas. The Fontenelle II and the Lincoln Road development areas are immediately adjacent to each other. Both proposed actions would be implemented in northeastern Lincoln and northwestern Sweetwater counties, Wyoming adjacent to and east of Fontenelle Reservoir and the Green River. The project areas are approximately 30 miles northeast of Kemmerer, Wyoming and …