Physical Sciences and Mathematics Commons^™

Measuring Whitespace Patterns As An Indication Of Plagiarism, Ilana Shay, Nikolaus Baer, Robert Zeidman

Annual ADFSL Conference on Digital Forensics, Security and Law

There are several different methods of comparing source code from different programs to find copying1 . Perhaps the most common method is comparing source code statements, comments, strings, identifiers, and instruction sequences. However, there are anecdotes about the use of whitespace patterns in code. These virtually invisible patterns of spaces and tabs have been used in litigation to imply copying, but no formal study has been performed that shows that these patterns can actually identify copied code. This paper presents a detailed study of whitespace patterns and the uniqueness of these patterns in different programs.

Keywords: Copyright Infringement, Intellectual Property, …

Electronic Discovery: A Fool’S Errand Where Angels Fear To Tread?, Milton Luoma, Vicki Luoma

Annual ADFSL Conference on Digital Forensics, Security and Law

Electronic discovery has transformed the discovery phase of civil litigation in recent years. The expectations of lawyers and parties were initially established in the Rowe and Zubulake cases that led to a complete revision of the electronic discovery rules contained in the Federal Rules of Civil Procedure. Subsequent cases have underscored the importance of document search methodologies and implications for attorneys, IT professionals, and digital forensics professionals. The authors review how electronic discovery has evolved thus far and offer recommendations regarding the electronic discovery process.

Keywords: Electronic discovery, e-discovery, keyword search, concept search,

Vortex Dynamics In Superconducting Channels With Periodic Constrictions, Britton Plourde, Kang Yu, M.B.S. Hesselberth, P. H. Kes

Physics - All Scholarship

Vortices confined to superconducting easy flow channels with periodic constrictions exhibit reversible oscillations in the critical current at which vortices begin moving as the external magnetic field is varied. This commensurability scales with the channel shape and arrangement, although screening effects play an important role. For large magnetic fields, some of the vortices become pinned outside of the channels, leading to magnetic hysteresis in the critical current. Some channel configurations also exhibit a dynamical hysteresis in the flux-flow regime near the matching fields.

Model-Robust Regression And A Bayesian `Sandwich' Estimator, Adam A. Szpiro, Kenneth M. Rice, Thomas Lumley

UW Biostatistics Working Paper Series

The published version of this paper in Annals of Applied Statistics (Vol. 4, No. 4 (2010), 2099–2113) is available from the journal web site at http://dx.doi.org/10.1214/10-AOAS362.

We present a new Bayesian approach to model-robust linear regression that leads to uncertainty estimates with the same robustness properties as the Huber-White sandwich estimator. The sandwich estimator is known to provide asymptotically correct frequentist inference, even when standard modeling assumptions such as linearity and homoscedasticity in the data-generating mechanism are violated. Our derivation provides a compelling Bayesian justification for using this simple and popular tool, and it also clarifies what is being estimated …

Visitors From The Halo: 11 Gyr Old White Dwarfs In The Solar Neighborhood, Mukremin Kilic, Ted Von Hippel, Et Al.

Publications

We report the discovery of three nearby old halo white dwarf (WD) candidates in the Sloan Digital Sky Survey (SDSS), including two stars in a common proper motion binary system. These candidates are selected from our 2800deg2 proper motion survey on the Bok and U.S. Naval Observatory Flagstaff Station 1.3 m telescopes, and they display proper motions of 0˝.4-0˝.5 yr¯1. Follow-up MMT spectroscopy and near-infrared photometry demonstrate that all three objects are hydrogen-dominated atmosphere WDs with T eff ≈ 3700-4100 K. For average mass WDs, these temperature estimates correspond to cooling ages of 9-10 Gyr, distances of 70-80 pc, and …

Dynamics Of Electron Wave Propagation In Photoionization Microscopy. Ii. Quantum-Mechanical Formulation, L. B. Zhao

Arts & Sciences Articles

No abstract provided.

Feature Selection Using Regularization In Approximate Linear Programs For Markov Decision Processes, Marek Petrik, Gavin Taylor, Ron Parr, Shlomo Zilberstein

Shlomo Zilberstein

Approximate dynamic programming has been used successfully in a large variety of domains, but it relies on a small set of provided approximation features to calculate solutions reliably. Large and rich sets of features can cause existing algorithms to overfit because of a limited number of samples. We address this shortcoming using $L_1$ regularization in approximate linear programming. Because the proposed method can automatically select the appropriate richness of features, its performance does not degrade with an increasing number of features. These results rely on new and stronger sampling bounds for regularized approximate linear programs. We also propose a computationally …

Hard Disk Storage: Firmware Manipulation And Forensic Impact And Current Best Practice, Gareth Davies, Iain Sutherland

Annual ADFSL Conference on Digital Forensics, Security and Law

The most common form of storage media utilized in both commercial and domestic systems is the hard disk drive, consequently these devices feature heavily in digital investigations. Hard disk drives are a collection of complex components. These components include hardware and firmware elements that are essential for the effective operation of the drive. There are now a number of devices available, intended for data recovery, which can be used to manipulate the firmware components contained within the drive. It has been previously shown that it is possible to alter firmware for malicious purposes, either to conceal information or to prevent …

Social Networking: A Boon To Criminals, Tejashree D. Datar, Richard Mislan

Annual ADFSL Conference on Digital Forensics, Security and Law

With the world getting more and more digitized, social networking has also found a place in the cyber world. These social networking sites (SNSs) which enable people to socialize, and build and maintain relationships are attracting attention of all kinds of people such as teens, adults, sports persons, and even businesses. But these SNSs are also getting unwanted attention from people like sexual predators, spammers, and people involved in criminal and illegal activities. This paper talks about SNSs and how these sites are exploited for criminal or illegal activity. The SNSs are discussed in detail with respect to user profiles, …

Organizational Handling Of Digital Evidence, Sheona A. Hoolachan, William B. Glisson

Annual ADFSL Conference on Digital Forensics, Security and Law

There are a number of factors that impact a digital forensics investigation. These factors include: the digital media in question, implemented processes and methodologies, the legal aspects, and the individuals involved in the investigation. This paper presents the initial idea that Digital Forensic Practice (DFP) recommendations can potentially improve how organizations handle digital evidence. The recommendations are derived from an in-depth survey conducted with practitioners in both commercial organizations and law enforcement along with supporting literature. The recommendations presented in this paper can be used to assess an organization’s existing digital forensics practices and a guide to Digital Forensics Improvement …

A Framework To Integrate The Data Of Interview Investigation And Digital Evidence, Fahad Alshathry

Annual ADFSL Conference on Digital Forensics, Security and Law

The physical interview process in crime investigation produces an extremely large amount of data, particularly in big cases. In comparison, examiners of digital evidence have enormous amounts of data to search through whilst looking for data relating to the investigation. However, the links between their results are limited. Whilst investigators need to refute or support their hypothesis throughout, digital evidence examiners often use search based keywords. These keywords are usually created from evidence taken from the physical investigation reports and this basic method has been found to have many shortcomings and limitations. This paper proposes a highly automatic framework to …

Developing Voip Honeypots: A Preliminary Investigation Into Malfeasant Activity, Craig Valli

Annual ADFSL Conference on Digital Forensics, Security and Law

30 years ago PABX systems were compromised by hackers wanting to make long distance calls at some other entities expense. This activity faded as telephony became cheaper and PABX systems had countermeasures installed to overcome attacks. Now the world has moved onto the provision of telephony via broadband enabled Voice over Internet Protocol (VoIP) with this service now being provided as a replacement for conventional fixed wire telephony by major telecommunication providers worldwide. Due to increasing bandwidth it is possible for systems to support multiple voice connections simultaneously. The networked nature of the Internet allows for attackers of these VoIP …

Higate (High Grade Anti‐Tamper Equipment) Prototype And Application To E‐Discovery, Yui Sakurai, Yuki Ashino, Tetsutaro Uehara, Hiroshi Yoshiura, Ryoichi Sasaki

Annual ADFSL Conference on Digital Forensics, Security and Law

These days, most data is digitized and processed in various ways by computers. In the past, computer owners were free to process data as desired and to observe the inputted data as well as the interim results. However, the unrestricted processing of data and accessing of interim results even by computer users is associated with an increasing number of adverse events. These adverse events often occur when sensitive data such as personal or confidential business information must be handled by two or more parties, such as in the case of e-Discovery, used in legal proceedings, or epidemiologic studies. To solve …

Retired A Stars And Their Companions. Iv. Seven Jovian Exoplanets From Keck Observatory, John Asher Johnson, Andrew W. Howard, Brendan P. Bowler, Gregory W. Henry, Geoffrey W. Marcy, Jason T. Wright, Debra A. Fischer, Howard Isaacson

Information Systems and Engineering Management Research Publications

We report precise Doppler measurements of seven subgiants from Keck Observatory. All seven stars show variability in their radial velocities consistent with planet-mass companions in Keplerian orbits. The host stars have masses ranging from 1.1 ≤ M⋆/M⊙ ≤ 1.9, radii 3.4 ≤ R⋆/R⊙ ≤ 6.1, and metallicities -0.21 ≤ [Fe/H] ≤ +0.26. The planets are all more massive than Jupiter (MP sin i > 1 MJup) and have semimajor axes a > 1 AU. We present millimagnitude photometry from the T3 0.4 m APT at Fairborn Observatory for five of the targets. Our monitoring shows these stars to be photometrically stable, further …

Lessons Learned From Positon-Electron Project Low Level Rf And Longitudinal Feedback, J. Fox, Themis Mastorides, C. Rivetta, D. Van Winkle, D. Teytelman

Physics

The PEP-II B-Factory collider ended the final phase of operation at nearly twice the design current and 4X the design luminosity. To highlight the evolution from the original conceptual design through to the 1.2E34 final machine we choose one example each from the broadband feedback and from the LLRF system. They illustrate the original design estimation missed some very significant details, and how in the course of PEP-II operation unexpected difficulties led to significant insights and new approaches which allowed higher machine performance. We present valuable ”lessons learned” which are of interest to designers of next generation feedback and impedance …

Assessing The Flexibility Of A Service Oriented Architecture To That Of The Classic Data Warehouse, Michael Pastore

Regis University Student Publications (comprehensive collection)

The flexibility of a service oriented architecture (SOA) is compared to that of the classic data warehouse across three categories: (1) source system access, (2) integration and transformation, and (3) end user access. The findings suggest that an SOA allows better upgrade and migration flexibility if back-end systems expose their source data via adapters. However, the providers of such adapters must deal with the complexity of maintaining consistent interfaces. An SOA also appears to provide more flexibility at the integration tier due to its ability to merge batch with real-time source system data. This has the potential to retain source …

A Framework Towards An Internalization Structure Using Document Repositories In The Context Of A Knowledge Management Strategy: A Case Study Of The First Colorado Title, Sharyl Swope

Regis University Student Publications (comprehensive collection)

Knowledge management is a key to creating efficiency and consistency within an organization. Title examiners review documents that may affect the issuance of title insurance. Some documents may affect many properties and thus are reviewed many times. This paper seeks to develop a framework that will enable the knowledge gained by the first review of the document to be captured and shared. Exploring the ontology of the title insurance industry with respect to title searching and examinations through the development of a concept map was the first step. Surveying the members of the title department provided the specifics for the …

Structural Characterization Of Metal Hydrides For Energy Applications, Lyci George

FIU Electronic Theses and Dissertations

Hydrogen can be an unlimited source of clean energy for future because of its very high energy density compared to the conventional fuels like gasoline. An efficient and safer way of storing hydrogen is in metals and alloys as hydrides. Light metal hydrides, alanates and borohydrides have very good hydrogen storage capacity, but high operation temperatures hinder their application. Improvement of thermodynamic properties of these hydrides is important for their commercial use as a source of energy. Application of pressure on materials can have influence on their properties favoring hydrogen storage. Hydrogen desorption in many complex hydrides occurs above the …

Carbon Bio-Sequestration Within The Phytoliths Of Economic Bamboo Species, Jeffrey Parr, Leigh Sullivan, Bihua Chen, Gongfu Ye, Zheng Wiepeng

Jeffrey Parr

The rates of carbon bio-sequestration within silica phytoliths of the leaf litter of 10 economically important bamboo species indicates that (a) there is considerable variation in the content of carbon occluded within the phytoliths (PhytOC) of the leaves between different bamboo species, (b) this variation does not appear to be directly related to the quantity of silica in the plant but rather the efficiency of carbon encapsulation by the silica. The PhytOC content of the species under the experimental conditions ranged from 1.6% to 4% of the leaf silica weight. The potential phytolith carbon bio-sequestration rates in the leaf-litter component …

Establishment And Partial Characterization Of A Cell Line From Burbot Lota Lota Maculosa: Susceptibility To Ihnv, Ipnv And Vhsv, Mark P. Polinski, John D. Drennan, William N. Batts, Susan C. Ireland, Kenneth D. Cain

United States Geological Survey: Staff Publications

This study describes the development and partial characterization of a continuous fibroblastic-like cell line (BEF-1) developed from late stage embryos of North American burbot Lota lota maculosa. This cell line has been maintained for over 5 yr and 100 passages in vitro. Cells were cultured using Eagle’s minimum essential medium with Earle’s salts (MEM) supplemented with GlutaMAX ™, and 10% fetal bovine serum (FBS), pH 7.4. The addition of penicillin-streptomycinneomycin (PSN) antibiotic mixture (0.05, 0.05, 0.1 mg ml–1, respectively) did not negatively influence cell replication; however, the antimycotic Fungizone™ (2.5 μg ml–1, amphotericin B) caused cell rounding and …

Results From Electrostatic Calibrations For Measuring The Casimir Force In The Cylinder-Plane Geometry, Q. Wei, D. A. R. Dalvit, F. C. Lombardo, F. D. Mazzitelli, R. Onofrio

Dartmouth Scholarship

We report on measurements performed on an apparatus aimed to study the Casimir force in the cylinder-plane configuration. The electrostatic calibrations evidence anomalous behaviors in the dependence of the electrostatic force and the minimizing potential upon distance. We discuss analogies and differences of these anomalies with respect to those already observed in the sphere-plane configuration. At the smallest explored distances we observe frequency shifts of non-Coulombian nature preventing the measurement of the Casimir force in the same range. We also report on measurements performed in the parallel-plane configuration, showing that the dependence on distance of the minimizing potential, if present …

A Tutorial On The Basic Physics Of Climate Change, David W. Hafemeister, Peter V. Schwartz

Peter V. Schwartz

In this paper, we have used several basic atmospheric–physics models to show that additional carbon dioxide will warm the surface of Earth. We also show that observed solar variations cannot account for observed global temperature increase.

Economics Of Carbon Regulation: An Exploration To The Nuance Of Carbon Regulation, Timothy J. Schwartz

Student Theses 2001-2013

This dissertation is written for the purpose of understanding the complexities and issues involved with greenhouse gas regulation. It explores the economics of international and local policies and would be valuable in aiding the common American on the current state of affairs.

New York Botanical Garden Internship: From Photography To Policy, Christine Willeford

Student Theses 2001-2013

No abstract provided.

A Practical Approach To Optical Cross-Reactive Sensor Arrays, Pavel Anzenbacher Jr., Premsyl Lubal, Pavel Bucek, Manuel A. Palacios, Maria E. Kozelkova

Pavel Anzenbacher

Supramolecular analytical chemistry has emerged as a new discipline at the interface of supramolecular and analytical chemistry. It focuses on analytical applications of molecular recognition and self-assembly. One of the important outcomes of the supramolecular analytical chemistry is the understanding of molecular aspects of sensor design, synthesis and binding studies of sensors while using rigorous methods of analytical chemistry as a touchstone to verify the viability of the supramolecular aspects of the sensor design. This critical review provides a simplified version of the chemometric procedures involved in realizing a successful analytical experiment that utilizes cross-reactive optical sensor arrays, and summarizes …

Interview With Judy Combs, Kaiser Permanente, 2010 (Audio), Judy Combs

All Sustainability History Project Oral Histories

Interview of Judy Combs by Nazer Frias at Clackamas, Oregon on May 17th, 2010.

The interview index is available for download.

Energy Savings Through Multi-Level Security Clients, Keith S. Mcabee

Regis University Student Publications (comprehensive collection)

In a multi-desktop environment, where users are required to access separate desktops to use different systems due to security requirements, the redundant desktop computers present a gross inefficiency in relation to power consumption even if each individual system is thoroughly examined and overhauled for energy efficiency. Several organizations require the use of separate networks and computer systems to perform different functions or access different data. The separation of networks is often the consequence of the need for security between the information and data on each individual system. The military is an excellent example of this situation. The need to separate …

2010 Spring Engr333 Project Final Report, Eric Ledy, Rachel Jelgerhuis, Jasper Gondhi, Michael Gondhi, Steve Brink, John Mantel, Kyle Harvey, Jim Vanleeuwen, Jacob Speelman, Mitch Brummel, Tyler Van Dongen, Nathan Van Heukelum, Lynette Hromada, Jen Meneely, Matthew Brouwer, Marc Eberlein, Steve Demaagd, Tim Opperwall, Andrew Dejong, Joel Love, Alex Boelkins, Amanda Hollinger, Betsy Huyser, Jason Dornbos, Jason Handlogten, Justin Karsten, Matt Milan

ENGR 333

Calvin is developing plans for a new data center to provide business continuity and quick recovery in the event of a disaster. The new data center will not replace the existing data center; rather, it will provide redundancy for the operations of the campus. Because of the energy demands of data centers, there is a worldwide push for energy efficiency. So-called “green data centers” provide the same functionality as a normal data center with reduced energy usage and reduced energy costs. Calvin, like most organizations, must weigh the long-term economic benefits of energy efficiency projects against higher initial cost. The …

Laboratory Bounds On Electron Lorentz Violation, Brett David Altschul

Faculty Publications

Violations of Lorentz boost symmetry in the electron and photon sectors can be constrained by studying several different high-energy phenomenon. Although they may not lead to the strongest bounds numerically, measurements made in terrestrial laboratories produce the most reliable results. Laboratory bounds can be based on observations of synchrotron radiation, as well as the observed absences of vacuum Cerenkov radiation. Using measurements of synchrotron energy losses at LEP and the survival of TeV photons, we place new bounds on the three electron Lorentz violation coefficients c(_TJ ), at the 3 x 10^-13 to 6 x 10^-15 levels.

Rhizocephalan Parasites Of Mud Crabs In South Carolina Estuaries, Erin Burnette

Honors Theses

Rhizocephalan parasites often infect commercially important crustacean species such as the blue crab (Callinectes sapidus). In this experiment, the prevalence of rhizocephalan parasites was determined by sampling mud crabs (Panopeus herbstii) in three different locations; Huntington Beach State Park, Waites Island, and Murrells Inlet. Crabs were determined to be parasitized by the presence of an externae extruding from their apron. Unparasitized crabs were also collected to serve as a control group. The externa were removed and DNA extractions were performed. Polymerase chain reactions (PCR) were done to prove whether the crabs were parasitized by Loxothylacus texanus or Loxothylacus panopaei. Results …