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The Growth, Enrichment, And Dehalogenating Properties Of Pyrococcus Gbd And Desulfurococcus Sy, Siegfried Georg Mueller

Theses

Recent investigations of volcanic smoker chimneys along the Atlantic Rift has lead to the discovery of hyperthermophilic bacteria. In particular, Pyrococcus GBD and Desulfurococcus SY were studied, optimizing growth conditions. This was achieved using elemental sulfur amendments, artificial sea water, and dehydrated marine broth. The microbes were then acclimated to enriched cultures containing 2,4,6 trichlorophenol in 0.0126 mM, 0.063 mM, and 0.126 mM amendments. The amended cultures showed dehalogenating properties and were subjected to a data qualifying program. This program indicated that the dehalogenation was a function of microbial gowth. A mass balance experiment showed that both microbes were able …

Requirements, Design And Business Process Reengineering As Vital Parts Of Any System Development Methodology, Alicja Ruszala

Theses

This thesis analyzes different aspects of system development life cycle, concentrating on the requirements and design stages. It describes various methodologies, methods and tools that have been developed over the years. It evaluates them and compares them against each other. Finally a conclusion is made that there is a very important stage missing in the system development life cycle, which is the Business Process Reengineering Stage.

Bioremediation Of 2-Chlorophenol In A Laboratory Soil Column, Timothy A. Coon

Theses

In-situ bioremediation offers the prospect of rendering organic contaminants harmless without having to remove them from the subsurface. It involves the modification of environmental factors to stimulate the biodegradation of chemicals in the subsurface by microorganisms. However, for the cost-effective use of in-situ bioremediation, it is necessary to develop accurate engineering models to quantify biodegradation.

In this thesis, the biodegradation of 2-chlorophenol in a laboratory soil column was examined in order to experimentally verify an engineering model. Experiments were performed to obtain the physical and biological parameters required by the model, and the steady-state 2-chlorophenol distribution in the column.

A …

Linear Transport Theory Of Magnetoconductance In Metallic Multilayers: A Real-Space Approach, Horacio E. Camblong

Physics and Astronomy

The linear transport behavior of metallic multilayers is studied by using the real-space Kubo formula, for a model Hamiltonian consisting of zero-range spin-dependent impurity-scattering potentials. The resulting theory allows a direct comparison with the Boltzmann equation approach in the quasiclassical limit, which is expected to be a good approximation for most magnetic multilayers. Furthermore, the regimes for which quantum corrections might be needed are explicitly indicated. It is explicitly shown that: (i) periodicity is not required as a mechanism for giant magnetoresistance, and (ii) the two main geometries, current in the plane of the layers and perpendicular to the plane …

Highly Enantioselective Capillary Electrophoretic Separations With Dilute Solutions Of The Macrocyclic Antibiotic Ristocetin A, Daniel W. Armstrong, Mary P. Gasper, Kimber L. Rundlett

Chemistry Faculty Research & Creative Works

Ristocetin A is one of a series of structurally related amphoteric, glycopeptide, macrocyclic antibiotics. These compounds have several features that make them attractive as chiral selectors. These include spatially oriented functional groups that are known to provide the types of interactions that are conducive to enantio-recognition, a somewhat rigid "pocket" that can provide a site for hydrophobic interactions and polar, flexible arms (i.e., pendent sugar moieties) that can rotate to hydrogen bond and otherwise interact with a variety of chiral analytes. In addition, these compounds are sufficiently soluble in water, aqueous buffers and aqueous-organic solvents that are commonly used in …

Perceived Risks Of Emfs And Landowner Compensation, Linda J. Orel

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

Although public concerns about EMFs may eventually prove groundless, they can nevertheless depress the market value of residential property near powerlines. Ms. Orel argues that the scientific truth, as courts increasingly recognize, should play no role in determining whether or how much landowners should recover.

Senator Johnston's Proposals For Regulatory Reform: New Cost-Benefit-Risk Analysis Requirements For Epa, Linda-Jo Schierow

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

Dr. Schierow compares provisions designed to improve the development of regulations and promulgated by Reagan and Clinton Executive Orders with those in the Johnston Amendments.

Report To The Colorado Department Of Natural Resources And The State Board Of Land Commissioners, University Of Colorado Boulder. Natural Resources Law Center, Colorado. Department Of Natural Resources, Colorado. State Board Of Land Commissioners

Books, Reports, and Studies

1 v. (various pagings) ; 28 cm

Environmental Messages In Boating Magazines: A Content Analysis Of Recreational Power Boating Articles, Robert S. Holtzman

Marine Affairs Theses and Major Papers

This paper presents the results of a study analyzing the editorial content of consumer power boating magazines for messages of environmental responsibility. It presents evidence of a cause and effect relationship between recreational power boating and damage to the marine environment, and cites arguments that power boating in its currently popular form, involving high speeds and heavy fuel consumption, is inherently "unfriendly" to the environment. The paper describes a "chain of influence" through which boat manufacturers, in their role as advertisers, influence the editorial content of consumer boating magazines through the tactics of marketing public relations. A hypothesis is developed …

The National Marine Sanctuary Designation Process And Its Impact On Naval Operations, Gregory E. Bolan

Marine Affairs Theses and Major Papers

This paper addresses the basis of potential and real conflicts derived by the National Environmental Protection Act (NEPA) process, as identified within and between NOAA and the United States Navy. This conflict is often exacerbated due to either a lack of communication, coordination, or both. A recent proliferation of proposed and designated marine sanctuaries in traditional Naval operating areas has complicated or hindered Naval operations (or will) to a degree where EIS derived restrictions negatively impact the Naval operations, based on (1) response readiness, and (2) increased cost of operations. Two specific conflicts are examined in a case study approach …

An Assessment Of The Safety Of Navigation: The Malaysian Perspective In The Straits Of Malacca, Amir Bin Murad

Marine Affairs Theses and Major Papers

The traffic movements in the Straits of Malacca (SOM) have been ever increasing over the past few years resulting in numerous marine casualties that have caused serious concern to the Government of Malaysia. Current characteristics of navigation in the SOM present a potential major catastrophe. The first hypothesis is that there is a positive relationship between traffic movement and the number of marine casualties. Thus, an increase in traffic movement will result in an increased risk of marine casualties. The second hypothesis is that the Traffic Separation Scheme (TSS) did not change the overall trend of marine casualties that occurred …

Implementation Of Harbor Management Plans: The Next Generation Of Mooring Management Incorporates Gps And Gis, Tracy E. Lang

Marine Affairs Theses and Major Papers

This paper describes the development of a spatial decision-support and management system to be used for improved coastal and harbor management. The design combines two separate systems, one is the use of Global Positioning Systems (GPS), and the other is the use of a Geographic Information (GIS) (ARCVIEW II). This pilot project specifically examined the use of GPS and GIS to identify, map, and monitor individual mooring buoys in one recreational harbor in Narragansett, Rhode Island. GPS was used for collection of positional information and was compared to one traditional marine positioning device, Loran-C, and the variations between each method …

Managine For Effectiveness And Efficiency In Oil Spill Response, Peter A. Tebeau

Marine Affairs Theses and Major Papers

Responding to oil spills, even spills of moderate proportion, requires the commitment of substantial manpower and equipment on the part of the responsible party or the federal government. Throughout the response operation, successful spill management entails choosing the most effective and efficient countermeasures and cleanup techniques to remove or neutralize oil in the environment, minimize overall environmental damages from the spill, and insure that the objectives and expectations of government agencies, responsible parties, and the public are met. As the response progresses, effective and efficient management requires determining when response operations should be terminated. In making this decision, the On-Scene …

The Rhode Island Marine Fisheries Council: Stewardship In Need Of Goals And Objectives, Robert Censabella

Marine Affairs Theses and Major Papers

In the State of Rhode Island, marine fisheries are managed through the Marine Fisheries Council, a citizen-based regulatory body of nine members from either the commercial or recreational fishing industries or experienced with the conservation and management of fisheries resources. To ostensibly help this group make informed decisions, biological data and scientific advice are provided by the State Division of Fish and Wildlife. This thesis examines the decision-making process of this Council. More specifically, it provides a case study of how this body has attempted to manage the State's winter flounder stocks-an economically-valuable species which confines its life cycle mostly …

An Evaluation Of Design Tradeoffs In A High Performance Media-On-Demand Server, Divyesh Jadav, Chutimet Srinilta, Alok Choudhary, P. B. Berra

Electrical Engineering and Computer Science - All Scholarship

One of the key components of a multi-user multimedia-on-demand system is the data server. Digitalization of traditionally analog data such as video and audio, and the feasibility of obtaining network bandwidths above the gigabit-per-second range are two important advances that have made possible the realization, in the near future, of interactive distributed multimedia systems. Secondary-to-main memory I/O technology has not kept pace with advances in networking, main memory and CPU processing power. Consequently, the performance of the server has a direct bearing on the overall performance of such a system. In this paper we present a high-performance solution to the …

Knowledge-Based Image Enhancement For Cooperative Tele-Assistance, Erika Rogers, Versonya Dupont, Robin R. Murphy, Nazir Warsi

Computer Science and Software Engineering

There is an increasing need in complex environments for computerized assistance, both for the effective filtering and display of pertinent information or data, and also for the decision-making task itself. The combination of artificial intelligence techniques with image processing and graphics capabilities provides the foundation for building intelligent systems which act as mediaries between the human and the task domain. In the field of tele-assistance, this type of system enables cooperative problem-solving between a remote semi-autonomous robot and a local human supervisor. This paper describes current work on such a system, with an emphasis on the development of knowledge-based image …

Cooperative Assistance For Remote Robot Supervision, Erika Rogers, Robin R. Murphy, A. Stewart, Nazir Warsi

Computer Science and Software Engineering

This paper describes current work on the design of a computer system which provides cooperative assistance for the supervision of remote semi-autonomous robots. It consists of a blackboard-based framework which allows communication between the remote robot, the local human supervisor, and an intelligent mediating system, which aids interactive exception handling when the remote robot requires the assistance of the local operator.

A Cognitive Theory Of Visual Interaction, Erika Rogers

Computer Science and Software Engineering

No abstract provided.

Seismic Stratigraphy Of The Eastern Equatorial Pacific Ocean: Paleoceanographic Implications, Stephen F. Bloomer, Larry A. Mayer, Ted C. Moore Jr

Affiliate Scholarship

The collection of Leg 138 well-log and shipboard physical-property data, in conjunction with high-resolution seismic profiles, provides an opportunity to understand the paleoceanographic significance of seismic reflectors and to gain insight into the paleoceanographic evolution of the eastern equatorial Pacific Ocean. A series of eight reflectors or reflector packages were traced between two transects connecting five Leg 138 sites. By generating synthetic seismograms at each of these sites and comparing these to the field records, the origin of these seismic reflectors was determined in terms of physical-property variations and other core measurements. In particular, these reflectors were usually associated with …

Draft Special Resource Study And Environmental Assessment, United States Department Of Interior National Park Service

All U.S. Government Documents (Utah Regional Depository)

One of the responsibilities of the National Park Service is to identify nationally significant natural, cultural, and recreational resources and assist in their preservation both inside and outside the national park system. The areas managed by the National Park Service are only one part of a national inventory of special and protected areas managed by innumerable federal, state, and local agencies and the private sector. Consequently, addition to the national park system is only one of many alternatives for ensuring the preservation of significant national resources for public enjoyment and benefit. As such, the purpose of this study is to …

Completion Report: Arkansas State Pesticides In Ground Water Monitoring Project Phase Iv: Eastern Arkansas (Pulaski, Lee And Jackson Counties), T. Nichols, P. Vendrell, K. Steele, H. D. Scott, C. Armstrong

Arkansas Water Resources Center Technical Reports

In 1995, fifty-two water samples were drawn from 49 new wells and 2 wells that had been previously sampled during earlier phases. These included twenty samples from 19 wells in eastern Pulaski County, thirteen wells in Lee County, 16 wells in Jackson County, two wells in Lonoke County, one well in Crittenden County and resamples of two wells in Woodruff County. Figure 1 shows the locations of the 3 counties where the majority of the samples were taken and Figures 2-4 show the monitoring locations withing these counties. The wells were tested for nitrate and 13 pesticides listed in Table …

Texaco's Stagecoach Draw Unit Final Environmental Impact Statement, Sweetwater County, Wyoming, United States Department Of The Interior Bureau Of Land Management

Final Environmental Impact Statements (WY)

This abbreviated Final Environmental Impact Statement (FEIS) on the Texaco Stagecoach Draw Unit natural gas development project, located approximately 7 miles southwest of Farson, Wyoming, on Wyoming Highway 28, is provided for your information and use. This FEIS is a supplement to the Draft Environmental Impact Statement (DEIS), published March 10, 1995, and contains the following material: it incorporates by reference the material presented in the DEIS and identifies the changes to the DEIS required as a result of additional information and public comment subsequent to publishing of the DEIS; comments received on the DEIS; and responses to the comments. …

Final Jackpot Mine Project Environmental Impact Statement, United States Department Of The Interior Bureau Of Land Management

Final Environmental Impact Statements (WY)

This Final Environmental Impact Statement (FEIS) assesses the environmental consequences of a proposed uranium mine project in Fremont and Sweetwater Counties, approximately 14 miles southeast of Jeffrey City, Wyoming. This FEIS incorporates by reference most of the material presented in the Draft Environmental Impact Statement (DEIS) for the Green Mountain Mining Venture (GMMV), Jackpot Mine Project, and is designed to be used with the DEIS. Copies of the DEIS are available from the BLM Lander Resource Area at P.O. Box 589, Lander, Wyoming, 82520.

Management For The Big Cedar Ridge Fossil Plant Area, Washakie County, Wyoming, Environmental Assessment, United States Department Of The Interior Bureau Of Land Management

Environmental Assessments (WY)

A planning review, including public participation, is being conducted to evaluate the management implications, needs, and issues associated with the discovery of uniquely preserved fossil plants in the former Washakie Resource Area (now part of the Bighorn Basin Resource Area) of the Bureau of Land Management's (BLM's) Worland District. The Big Cedar Ridge Fossil Plant Area (the planning review area) is comprised of about 1,550 acres of BLM-administered federal land surface and federally-owned minerals in and around the fossil discovery site. Fossil concentration areas, including the discovery site, are found on about 260 acres within the review area. (The 1,550 …

Filtration Rates Of The Zebra Mussel (Dreissena Polymorpha) On Natural Seston From Saginaw Bay, Lake Huron, David L. Fanslow, Thomas F. Nalepa, Gregory A. Lang

United States Department of Commerce: Staff Publications

Filtration rates of the zebra mussel (Dreissena polymorpha) on natural seston from two different regions in Saginaw Bay were determined on a monthly basis from April to October in 1992 and 1993. The two regions represent contrasting trophic conditions, with the inner bay more eutrophic than the outer bay. Mean filtration rate was 16.2 mL/mg/h (range 4.0 to 40.7 mL/mg/h) over the entire 2-year period. Filtration rates on seston from the inner bay were significantly lower than rates on seston from the outer bay in 1992, but no differences were apparent in 1993. Lower rates were attributed to …

1995-1996 Nova Southeastern University Undergraduate Programs Catalog, Nova Southeastern University

Undergraduate Programs Course Catalogs

No abstract provided.

Dissociation Quotient Of Benzoic Acid In Aqueous Sodium Chloride Media To 250°C, Richard Kettler, David J. Wesolowski, Donald A. Palmer

Department of Earth and Atmospheric Sciences: Faculty Publications

The dissociation quotient of benzoic acid was determined potentiometrically in a concentration cell fitted with hydrogen electrodes. The hydrogen ion molality of benzoic acid/benzoate solutions was measured relative to a standard aqueous IiCI solution at seven temperatures from 5 to 250°C and at seven ionic strengths ranging from 0.1 to 5.0 molal (NaCI). The molal dissociation quotients and selected literature data were fitted in the isocoulombic (all anionic) form by a six-term equation. This treatment yielded the following thermodynamic quantities for the acid dissociation equilibrium at 25°C and 1 bar: log K_a = -4.206±0.006, ΔH_å=0.3±0.3 kJ-mol^{-1 …}

Coyotes In Urban Areas: A Status Report, Jan E. Loven

Coyotes in the Southwest: A Compendium of Our Knowledge (Symposium Proceedings, 1995)

Coyotes (Canis latrans) occur within the city limits of most urban areas in Texas, and the Incidence of human X coyote interactions appears to be increasing in recent years. The major damage caused by coyotes in urban areas has been depredation on pets (primarily) and to other animals (e.g. ducks). Direct control of such problem coyotes is often hampered by city/state regulations and/or concern from local officials about negative publicity.

Maine Waste Management : 20 Years Of Progress, Mark Sullivan

Maine Collection

Maine Waste Management : 20 Years of Progress

by Mark Sullivan

A publication of the Maine State Planning Office, August 1995.

Contents: An Achievement All Mainers Share / History / Accomplishments / Waste Reduction / Reuse / Recycling / Composting / Incineration & Waste-To-Energy / Land Disposal / Future Direction

Annual Report Of The Iowa Academy Of Science, 1994-95, Paul E. Rider

Journal of the Iowa Academy of Science: JIAS

Since 1976, annual reports have served as a continuing record of the activities of the Iowa Academy of Science and an archive for its history. These augment the 100 year IAS history written in the centennial year of 1975.

This report covers the period from July 1, 1994 to June 30, 1995. 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.