Digital Commons Network^™

Mapping Sand And Gravel Mining Within The Presumpscot River Watershed, Maine, Using Remote Sensing And Other Digital Data In A G.I.S. Environment, Chris Jones Jones, Justin Rich, Irwin D. Novak

Publications

No abstract provided.

Measurement Of Sediment Oxygen Demand (Sod) In The Royal River Estuary, Yarmouth, Maine, Tim Bridges

Publications

No abstract provided.

Non-Native Invasive Marine Species In Maine, A Report To The Maine State Legislature, Marine Resources Committee And Natural Resources Committee, Peter E. Thayer, James F. Stahlnecker

Publications

No abstract provided.

The Interests Of "Peoples" In The Cooperative Management Of Sacred Sites, Kristen A. Carpenter

Publications

This essay contends that there is a structural element of federal law and policy that sets up legal battles over American Indian sacred sites. The Supreme Court has held that whatever rights groups may have at sacred sites, the federal government's rights as owner and sovereign of the public lands ultimately prevails. Federal agencies can, if they choose, accommodate various interests on the public lands, but such decisions are left to fluctuating executive policy and the discretion of land managers. This approach reflects well-established doctrine in public lands law, but leaves various citizens and groups clamoring for the federal government …

The Next Epidemic: Bubbles And The Growth And Decay Of Securities Regulation, Erik F. Gerding

Publications

This article explores how speculative bubbles undermine the effectiveness of securities regulations and spawn epidemics of securities fraud. A brief historical survey demonstrates that stock market bubbles almost invariably coincide with epidemics of securities fraud, and provides a compelling argument that the outbreak of fraud in the Enron era did not stem merely from factors unique to the 1990s, but from the dynamics of an asset price bubble as well.

Drawing on perspectives from securities law practice and economic theory, the article argues that bubbles dilute the deterrent effect of antifraud rules and promote deregulation. Both effects alter the calculus …

Rethinking The Great Lakes Compact, Mark Squillace

Publications

On December 13, 2005, the Governors and Premiers of the Great Lakes states and provinces signed a Compact and Agreement that commits the parties to a rigorous program to regulate individual water uses, with citizen suits to enforce the requirements. While the Great Lakes-St. Lawrence River Basin Water Resources Compact and companion Agreement are commendable in many respects, this Article argues that people who care about the future of the Great Lakes should urge policymakers to reject the current proposals and rethink the entire approach. The proposed compact is fundamentally flawed and will not achieve the ultimate stated goal of …

A Digital Age Communications Act Paradigm For Federal-State Relations, Kyle D. Dixon, Philip J. Weiser

Publications

This article captures the effort of the Digital Age Communications Act (DACA) to craft a new framework for the federal-state relationship in implementing a next generation telecommunications regulatory regime. In particular, it sets forth a DACA model that would implement a "rule of law" regulatory paradigm for an era of technological dynamism. This era requires, as the article explains, a coherent federal framework that circumscribes the role of state and local authorities so as to advance sound competition policy goals. The sole exception to this policy is the recognition that a basic local service rate retains both political and practical …

Assessing Trace Evidence Left By Secure Deletion Programs, Paul Burke, Philip Craiger

Publications

Secure deletion programs purport to permanently erase files from digital media. These programs are used by businesses and individuals to remove sensitive information from media, and by criminals to remove evidence of the tools or fruits of illegal activities. This paper focuses on the trace evidence left by secure deletion programs. In particular, five Windows-based secure deletion programs are tested to determine if they leave identifiable signatures after deleting a file. The results show that the majority of the programs leave identifiable signatures. Moreover, some of the programs do not completely erase file metadata, which enables forensic investigators to extract …

Mac Os X Forensics, Philip Craiger, Paul Burke

Publications

This paper describes procedures for conducting forensic examinations of Apple Macs running Mac OS X. The target disk mode is used to create a forensic duplicate of a Mac hard drive and preview it. Procedures are discussed for recovering evidence from allocated space, unallocated space, slack space and virtual memory. Furthermore, procedures are described for recovering trace evidence from Mac OS X default email, web browser and instant messaging applications, as well as evidence pertaining to commands executed from a terminal.

Research-Based Web Design & Usability Guidelines [2006 Edition], Michael O. Leavitt, Ben Shneiderman, Robert W. Bailey, Carol Barnum, John Bosley, Barbara Chaparro, Joseph Dumas, Melody Y. Ivory, Bonnie John, Hal Miller-Jacobs, Sanjay J. Koyani, James R. Lewis, Stanley Page, Judith Ramey, Janice (Ginny) Redish, Jean Scholtz, Steve Wigginton, Cari A. Wolfson, Larry E. Wood, Don Zimmerman

Publications

The new edition of the U.S. Department of Health and Human Services’ (HHS) Research-Based Web Design and Usability Guidelines. These guidelines reflect HHS’ commitment to identifying innovative, research-based approaches that result in highly responsive and easy-to-use Web sites for the public.

These guidelines help move us in that direction by providing practical, yet authoritative, guidance on a broad range of Web design and communication issues. Having access to the best available research helps to ensure we make the right decisions the first time around and reduces the possibility of errors and costly mistakes.

Book Review: Digital Crime And Forensic Science In Cyberspace, Gary C. Kessler

Publications

This document is Dr. Kessler's review of Digital Crime and Forensic Science in Cyberspace, by P. Kanellis, E. Kiountouzis, N. Kolokotronis, and D. Martakos. Idea Group Publishing, 2006. ISBN: 1-59140-873-3.

Transfer Of Training From Flight Training Devices To Flight For Ab-Initio Pilots, Nickolas D. Macchiarella, Pamela K. Arban, Shawn M. Doherty

Publications

The application of flight simulation to meet pilot training needs continues to evolve. Flight simulations built with powerful and inexpensive computers are making high fidelity simulation available as a medium for training ab-initio pilots at Pilot Schools and Training Centers. The researchers conducted an 18-month study that applied an experimental flight-training curriculum comprised of 60% flight training device (FTD) flight and 40% airplane flight to certify Private Pilots under Federal Aviation Regulation (FAR) Part 142. The results from the research provided data to ascertain the effective transfer for each flight-training task. Ab-initio student pilots practiced each task to standard in …

Modeling Bus Priority Using Intermodal Dynamic Network Assignment-Simulation Methodology, Khaled F. Abdelghany, Ahmed F. Abdelghany, Hani S. Mahmassani, Akmal S. Abdelfatah

Publications

This article presents a modeling framework that represents bus priority at signalized intersections in the context of its potential network-level and intermodal effects. The model incorporates bus priority within an intermodal dynamic traffic assignment simulation model. It dynamically assigns travelers to different modes and routes in the network according to prevailing traffic conditions, which result from applying a certain network control/bus priority scheme. The model considers changes in traffic conditions as a result of (1) drivers’ route choice adjustments due to changes in traffic signals settings and (2) modal shifts by travelers to take advantage of improved transit service. Three …

Cool White Dwarfs In The Sloan Digital Sky Survey, Mukremin Kilic, Jeffrey A. Munn, Hugh C. Harris, James W. Liebert, Ted Von Hippel, Kurtis A. Williams, Travis S. Metcalfe, D. E. Winget, Stephen E. Levine

Publications

A reduced proper motion diagram utilizing Sloan Digital Sky Survey (SDSS) photometry and astrometry and USNO-B plate astrometry is used to separate cool white dwarf candidates from metal-weak, high-velocity, mainsequence Population II stars (subdwarfs) in the SDSS Data Release 2 imaging area. Follow-up spectroscopy using the Hobby-Eberly Telescope, the MMT, and the McDonald 2.7 m telescope is used to demonstrate that the white dwarf and subdwarf loci separate cleanly in the reduced proper motion diagram and that the contamination by subdwarfs is small near the cool white dwarf locus. This enables large, statistically complete samples of white dwarfs, particularly the …

Which Theory Applies: An Analysis Of Information Systems Research, Leila Halawi, Richard Mccarthy

Publications

Research in information systems has rapidly expanded during its relatively brief existence. IT offers organizations a fundamental decision-enhancing environment that extends new opportunities, therefore producing thriving, competitive firms, adding business value and offering valuable products and services to customers. Research within the IT domain has produced several new theories, some of which have been used to help explain and predict end-user use of technologies. We provide a comprehensive overview of the major IT theories and review their theoretical fundamentals.

Experimental Investigation Of The Velocity Field In Buoyant Diffusion Flames Using Piv And Tpiv Algorithm, Lulu Sun, Xiangyang Zhou, Shankar Mahalingam, David R. Weise

Publications

We investigated a simultaneous temporally and spatially resolved 2-D velocity field above a burning circular pan of alcohol using particle image velocimetry (PIV). The results obtained from PIV were used to assess a thermal particle image velocimetry (TPIV) algorithm previously developed to approximate the velocity field using the temperature field, simultaneously captured by an infrared (IR) thermal camera. By tracing “thermal particles,” which were assumed to be virtual particles that corresponded to pixels of temperature values in successive IR images, the TPIV algorithm estimated a larger scale instantaneous velocity field than either a single-point velocity measurement (e.g., LDV) or the …

Book Review: The Amateur Astronomer's Introduction To The Celestial Sphere, T. D. Oswalt

Publications

This document is Dr. Oswalt’s review of The Amateur Astronomer's Introduction to the Celestial Sphere by William Millar. Cambridge, 2006 299p, 052167123X $40.00, 9780521671231 $40.00.

Health Information Literacy And Competencies Of Information Age Students: Results From The Interactive Online Research Readiness Self-Assessment (Rrsa), Lana Ivanitskaya, Irene O'Boyle, Anne Marie Casey

Publications

This study aimed to measure the proficiency of college-age health information consumers in finding and evaluating electronic health information; to assess their ability to discriminate between peer-reviewed scholarly resources and opinion pieces or sales pitches; and to examine the extent to which they are aware of their level of health information competency.

Observations Of Triboelectric Charging Effects On Langmuir-Type Probes In Dusty Plasma, Aroh Barjatya, Charles M. Swenson

Publications

Investigation of Earth’s mesosphere using sounding rockets equipped with a myriad of instruments has been a highly active field in the last 2 decades. This paper presents data from three separate instruments: an RF impedance probe, a DC fixed bias Langmuir probe, and an electric field probe, that were flown on a mesospheric sounding rocket flight investigating the presence of charged dust within and/or around a sporadic metal layer. The combined data set indicates a case of payload surface charging, the causes of which are investigated within this paper. A generic circuit model is developed to analyze payload charging and …

Hurricane Relief From The Sea: Options, 2006, Clinton H. Whitehurst Jr.

Publications

No abstract provided.

A Closer Look: State Governance Models, 2006, Author Unknown

Publications

No abstract provided.

Aquatic Turning Performance Of Painted Turtles (Chrysemys Picta) And Functional Consequences Of A Rigid Body Design, Gabriel Rivera, Angela R.V. Rivera, Erin E. Dougherty, Richard W. Blob

Publications

The ability to capture prey and avoid predation in aquatic habitats depends strongly on the ability to perform unsteady maneuvers (e.g. turns), which itself depends strongly on body flexibility. Two previous studies of turning performance in rigid-bodied taxa have found either high maneuverability or high agility, but not both. However, examinations of aquatic turning performance in rigid-bodied animals have had limited taxonomic scope and, as such, the effects of many body shapes and designs on aquatic maneuverability and agility have yet to be examined. Turtles represent the oldest extant lineage of rigid-bodied vertebrates and the only aquatic rigid-bodied tetrapods. We …