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2007

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Relative Contributions Of Enterococcus Faecalis Og1rf Sortase-Encoding Genes, Srta And Bps (Srtc), To Biofilm Formation And A Murine Model Of Urinary Tract Infection, Kelvin D Kemp, Kavindra V Singh, Sreedhar R Nallapareddy, Barbara E Murray Nov 2007

Relative Contributions Of Enterococcus Faecalis Og1rf Sortase-Encoding Genes, Srta And Bps (Srtc), To Biofilm Formation And A Murine Model Of Urinary Tract Infection, Kelvin D Kemp, Kavindra V Singh, Sreedhar R Nallapareddy, Barbara E Murray

Faculty, Staff and Student Publications

Deletion mutants of the two sortase genes of Enterococcus faecalis OG1RF were constructed. srtC (renamed here bps for biofilm and pilus-associated sortase) was previously shown to be necessary for the production of Ebp pili and important for biofilm formation and endocarditis. Here, we report that a srtA deletion mutant showed a small (5%) yet significant (P = 0.037) reduction in biofilm relative to OG1RF, while a DeltasrtA Deltabps double mutant showed a much greater reduction (74% versus OG1RF and 44% versus the Deltabps mutant). In a murine urinary tract infection (UTI), the 50% infective doses of both the DeltasrtA Deltabps …

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Evidence Of The Lack Of Effectiveness Of Low-Income Savings Incentives, Julia M. Camp, Teresa Stephenson, Stacy R. Wade Nov 2007

Evidence Of The Lack Of Effectiveness Of Low-Income Savings Incentives, Julia M. Camp, Teresa Stephenson, Stacy R. Wade

Financial Services Forum Publications

In view of the government’s propensity to develop programs to encourage savings, we examine a group of individuals to whom these programs are targeted: low- to moderate-income taxpayers. We show that saving for retirement is not a priority in the lives of these taxpayers. The low priority given to saving is often due to immediate necessary costs such as housing, food, and transportation. However, our study shows that even nonessential items and activities such as cable and internet services or travel are often considered more important than saving. We also show that most of the participants were not even aware …

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Implementing The Death Penalty: The Moral Implications Of Recent Advances In Neuropsychology, Peggy Sasso Nov 2007

Implementing The Death Penalty: The Moral Implications Of Recent Advances In Neuropsychology, Peggy Sasso

Cardozo Law Review

No abstract provided.

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The Role Of Preaching In Revitalizing Declining Churches, Jammie D. Vance Nov 2007

The Role Of Preaching In Revitalizing Declining Churches, Jammie D. Vance

Doctoral Dissertations and Projects

A review of current literature demonstrates that very little material is available to assist Pastors in declining churches, develop a preaching plan to effect turn around in their church. The purpose of this project is to explore various styles of preaching and decide what style is biblical and most effective in reviving a declining church. This project also explores the causes and needs of the declining church so as to determine what subjects need to be addressed by the pastor of the declining church.

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Monitoring: Which Institutions Matter?, Xia Chen, Jarrad Harford, Kai Li Nov 2007

Monitoring: Which Institutions Matter?, Xia Chen, Jarrad Harford, Kai Li

Research Collection School Of Accountancy

Within a cost–benefit framework, we hypothesize that independent institutions with long-term investments will specialize in monitoring and influencing efforts rather than trading. Other institutions will not monitor. Using acquisition decisions to reveal monitoring, we show that only concentrated holdings by independent long-term institutions are related to post-merger performance. Further, the presence of these institutions makes withdrawal of bad bids more likely. These institutions make long-term portfolio adjustments rather than trading for short-term gain and only sell in advance of very bad outcomes. Examining total institutional holdings or even concentrated holdings by other types of institutions masks important variation in the …

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The Change In Corporate Transparency Of Korean Firms After The Asian Financial Crisis: An Analysis Using Analysts' Forecast Data, Jinho Chang, Young Jun Cho, Hyun-Han Shin Nov 2007

The Change In Corporate Transparency Of Korean Firms After The Asian Financial Crisis: An Analysis Using Analysts' Forecast Data, Jinho Chang, Young Jun Cho, Hyun-Han Shin

Research Collection School Of Accountancy

Using analysts' forecast error and forecast dispersion of firms covered by the I/B/E/S database, this study examines the change in information asymmetry of Korean firms around the financial crisis of 1997. Results show that the information asymmetry of Korean firms is lower after the financial crisis than before, implying that corporate transparency did, in effect, improve with the change in business environment. In addition, this study finds that chaebol firms have higher information asymmetry than non-chaebol firm, and also that the corporate transparency improvement of chaebol firms is not higher than that of non-chaebol firms in the post-crisis period despite …

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Legal Systems And Earnings Quality: The Role Of Auditor Industry Specialization, Chee Yeow Lim, Soo Young Kwon, Patricia Mui Siang Tan Nov 2007

Legal Systems And Earnings Quality: The Role Of Auditor Industry Specialization, Chee Yeow Lim, Soo Young Kwon, Patricia Mui Siang Tan

Research Collection School Of Accountancy

This paper extends prior studies in auditor industry specialization to an international setting and examines if the impact of industry specialist auditors on earnings quality is dependent on the legal environments. Using data for 28 countries over 20 industries from 1993 to 2003, we find that clients of industry specialist auditors have lower discretionary current accruals and higher earnings response coefficients than clients of nonspecialist auditors. In addition, we find that the impact of auditor industry specialization on earnings quality increases as the legal environment weakens. Collectively, the results suggest that the benefits from engaging the services of industry specialist …

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The Dynamics Of Implementing And Managing Modularity Of Organizational Routines During Capability Development: Insights From A Process Model, Shan Ling Pan, Gary Shan Chi Pan, Adela Chen, Ming Huei Hsieh Nov 2007

The Dynamics Of Implementing And Managing Modularity Of Organizational Routines During Capability Development: Insights From A Process Model, Shan Ling Pan, Gary Shan Chi Pan, Adela Chen, Ming Huei Hsieh

Research Collection School Of Accountancy

Past research using the resource-based view of a firm suggests that it is important to consider how firms develop, manage, and deploy resources and capabilities to influence the overall process of strategy formation and implementation. Relatively little research has been conducted in conceptualizing how firms implement and manage modularity of organizational routines during capability development. Yet, most companies would benefit from implementing modularity in organizational routines when competing in dynamic market conditions. Such implementations may require fundamental organizational reorientation that incurs significant coordination costs, and in some cases, such modularization attempts may fail, costing organizations significant amounts of valuable resources. …

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S-Made: Interactive Storytelling Architecture Through Goal Execution And Decomposition, Yundong Cai, Zhiqi Shen, Chunyan Miao, Ah-Hwee Tan Nov 2007

S-Made: Interactive Storytelling Architecture Through Goal Execution And Decomposition, Yundong Cai, Zhiqi Shen, Chunyan Miao, Ah-Hwee Tan

Research Collection School Of Computing and Information Systems

Interactive storytelling, emerging with virtual reality technology, has attracted a lot of research interests in recent years. In order to bridge the gap between story generation and story presentation, some hybrid narrative models are raised. In this paper, we propose a new hybrid interactive storytelling architecture S-MADE. It combines the story plot generation and character performance through goal execution and decomposition mechanism. Fuzzy Cognitive Goal Net (FCGN) is a goal modeling tool for modeling the story scenario and character behaviors. The goal decomposition algorithm enables for director agent to dispatch acts to characters easily. With this system, dynamic storylines as …

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Experimenting Vireo-374: Bag-Of-Visual-Words And Visual-Based Ontology For Semantic Video Indexing And Search, Chong-Wah Ngo, Yu-Gang Jiang, Xiaoyong Wei, Feng Wang, Wanlei Zhao, Hung-Khoon Tan, Xiao Wu Nov 2007

Experimenting Vireo-374: Bag-Of-Visual-Words And Visual-Based Ontology For Semantic Video Indexing And Search, Chong-Wah Ngo, Yu-Gang Jiang, Xiaoyong Wei, Feng Wang, Wanlei Zhao, Hung-Khoon Tan, Xiao Wu

Research Collection School Of Computing and Information Systems

In this paper, we present our approaches and results of high-level feature extraction and automatic video search in TRECVID-2007.

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Machine-Assisted Proof Support For Validation Beyond Simulink, Chunqing Chen, Jin Song Dong, Jun Sun Nov 2007

Machine-Assisted Proof Support For Validation Beyond Simulink, Chunqing Chen, Jin Song Dong, Jun Sun

Research Collection School Of Computing and Information Systems

Simulink is popular in industry for modeling and simulating embedded systems. It is deficient to handle requirements of high-level assurance and timing analysis. Previously, we showed the idea of applying Timed Interval Calculus (TIC) to complement Simulink. In this paper, we develop machine-assisted proof support for Simulink models represented in TIC. The work is based on a generic theorem prover, Prototype Verification System (PVS). The TIC specifications of both Simulink models and requirements are transformed to PVS specifications automatically. Verification can be carried out at interval level with a high level of automation. Analysis of continuous and discrete behaviors is …

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Designing The Market Game For A Commodity Trading Simulation, Shih-Fen Cheng Nov 2007

Designing The Market Game For A Commodity Trading Simulation, Shih-Fen Cheng

Research Collection School Of Computing and Information Systems

In this paper, we propose to design a market game that (a) can be used in modeling and studying commodity trading scenarios, and (b) can be used in capturing human traders' behaviors. Specifically, we demonstrate the usefulness of this commodity trading game in a single-commodity futures trading scenario. A pilot experiment was run with a mixture of human traders and an autonomous agent that emulates the aggregatedmarket condition, with the assumption that this autonomous agent would hint each of its action through a public announcement. We show that the information collected from this simulation can be used to extract the …

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Multi-Period Combinatorial Auction Mechanism For Distributed Resource Allocation And Scheduling, Hoong Chuin Lau, Shih-Fen Cheng, Thin Yin Leong, Jong Han Park, Zhengyi Zhao Nov 2007

Multi-Period Combinatorial Auction Mechanism For Distributed Resource Allocation And Scheduling, Hoong Chuin Lau, Shih-Fen Cheng, Thin Yin Leong, Jong Han Park, Zhengyi Zhao

Research Collection School Of Computing and Information Systems

We consider the problem of resource allocation and scheduling where information and decisions are decentralized, and our goal is to propose a market mechanism that allows resources from a central resource pool to be allocated to distributed decision makers (agents) that seek to optimize their respective scheduling goals. We propose a generic combinatorial auction mechanism that allows agents to competitively bid for the resources needed in a multi-period setting, regardless of the respective scheduling problem faced by the agent, and show how agents can design optimal bidding strategies to respond to price adjustment strategies from the auctioneer. We apply our …

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The Price Of Stability In Selfish Scheduling Games, Lucas Agussurja, Hoong Chuin Lau Nov 2007

The Price Of Stability In Selfish Scheduling Games, Lucas Agussurja, Hoong Chuin Lau

Research Collection School Of Computing and Information Systems

Game theory has gained popularity as an approach to analysing and understanding distributed systems with selfinterested agents. Central to game theory is the concept of Nash equilibrium as a stable state (solution) of the system, which comes with a price - the loss in efficiency. The quantification of the efficiency loss is one of the main research concerns. In this paper, we study the quality and computational characteristic of the best Nash equilibrium in two selfish scheduling models: the congestion model and the sequencing model. In particular, we present the following results: (1) In the congestion model: first, the best …

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Light-Weight Encryption Schemes For Multimedia Data, Feng Bao, Robert H. Deng Nov 2007

Light-Weight Encryption Schemes For Multimedia Data, Feng Bao, Robert H. Deng

Research Collection School Of Computing and Information Systems

Due to the pervasiveness of high-speed networks and multimedia communications and storage, the demand for highspeed cryptosystems is ever increasing. It is widely believed that there is a tradeoff between speed and security in cryptosystem design. No existing encryption algorithms are both fast enough for high-speed operation and sufficiently secure to withstand powerful cryptanalysis. In this paper, we propose and analyze a generic construction of high-speed encryption schemes. Our solution is based on the fact that there exist secure but relatively slow block ciphers, e. g. AES, and super-fast but relatively weaker stream ciphers. We then combine a secure block …

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An Information-Sharing Based Anti-Phishing System, Yueqing Cheng, Zhen Yuan, Lei Ma, Robert H. Deng Nov 2007

An Information-Sharing Based Anti-Phishing System, Yueqing Cheng, Zhen Yuan, Lei Ma, Robert H. Deng

Research Collection School Of Computing and Information Systems

This paper presents the design of an informationsharing based or server-assisted anti-phishing system. The system follows a client-server architecture and makes decision based on not only client side heuristics but also collective information from multiple clients. When visiting a web site, a client side proxy, installed as a plug-in to a browser, decides on the legitimacy of the web site based on a combination of white list, black list and heuristics. In case the client side proxy does not have sufficient information to make a clear judgment, it reports the suspicious site to a central server which has access to …

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Necessary To The Security Of A Free State, Eugene Volokh Nov 2007

Necessary To The Security Of A Free State, Eugene Volokh

Notre Dame Law Review

No abstract provided.

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Context-Aware Statistical Debugging: From Bug Predictors To Faulty Control Flow Paths, Lingxiao Jiang, Zhendong Su Nov 2007

Context-Aware Statistical Debugging: From Bug Predictors To Faulty Control Flow Paths, Lingxiao Jiang, Zhendong Su

Research Collection School Of Computing and Information Systems

Effective bug localization is important for realizing automated debugging. One attractive approach is to apply statistical techniques on a collection of evaluation profiles of program properties to help localize bugs. Previous research has proposed various specialized techniques to isolate certain program predicates as bug predictors. However, because many bugs may not be directly associated with these predicates, these techniques are often ineffective in localizing bugs. Relevant control flow paths that may contain bug locations are more informative than stand-alone predicates for discovering and understanding bugs. In this paper, we propose an approach to automatically generate such faulty control flow paths …

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Mining Modal Scenarios-Based Specifications From Execution Trace Of Reactive Systems, David Lo, Shahar Maoz, Siau-Cheng Khoo Nov 2007

Mining Modal Scenarios-Based Specifications From Execution Trace Of Reactive Systems, David Lo, Shahar Maoz, Siau-Cheng Khoo

Research Collection School Of Computing and Information Systems

Specification mining is a dynamic analysis process aimed at automatically inferring suggested specifications of a program from its execution traces. We describe a novel method, framework, and tool, for mining inter-object scenario-based specifications in the form of a UML2-compliant variant of Damm and Harels Live Sequence Charts (LSC). LSC extends the classical partial order semantics of sequence diagrams with temporal liveness and symbolic class level lifelines, in order to generate compact and expressive specifications. The output of our algorithm is a sound and complete set of statistically significant LSCs (i.e., satisfying given thresholds of support and confidence), mined from an …

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A Preliminary Investigation Of Affective Interaction In Chronic Pain Couples, Ayna B. Johansen, Annmarie Cano Nov 2007

A Preliminary Investigation Of Affective Interaction In Chronic Pain Couples, Ayna B. Johansen, Annmarie Cano

Psychology Faculty Research Publications

The objective of this preliminary study was to examine the extent to which affective marital interaction related to depressive symptoms in persons with chronic pain and their spouses and to pain severity in persons with pain. Couples from the community completed self-report surveys and engaged in a videotaped conversation on a topic of mutual disagreement that was coded for three affect types (i.e., anger/contempt, sadness, humor). Humor was positively related to marital satisfaction in both partners. Spouse anger/contempt and sadness were positively related to depressive symptoms in spouses. Several significant interaction effects between couple pain status (i.e., whether one or …

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Twentieth-Century Drama: Internet Resource, Priscilla Finley Nov 2007

Twentieth-Century Drama: Internet Resource, Priscilla Finley

Library Faculty Research

The current release of Twentieth-Century Drama offers authoritative online texts for 1,450 plays. The completed version will contain 2,600 published plays from throughout the English-speaking world, covering the history of modern drama from the 1890s to the present, at a cost of roughly $25 per play for a typical graduate library.

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Review Of "Teaching The Gothic," Edited By Anna Powell And Andrew Smith, Diane Hoeveler Nov 2007

Review Of "Teaching The Gothic," Edited By Anna Powell And Andrew Smith, Diane Hoeveler

English Faculty Research and Publications

In recent years there has been a considerable growth in scholarship on the Gothic and on supporting reference materials. There has also been a growth in single volume introductory guides to the form which have been crucial in supporting our pedagogic practices (at least in the early weeks of Gothic courses). However, this book, published as part of the MLA's Approaches to Teaching series, provides a much needed analysis of how we go about teaching the Gothic. The content is almost exhaustive and encompasses accounts of teaching the Gothic in fiction and in film and has chapters on a range …

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The Hilltop 11-1-2007, Hilltop Staff Nov 2007

The Hilltop 11-1-2007, Hilltop Staff

The Hilltop: 2000 - 2010

No abstract provided.

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Adapting The Ssbd For Secondary School Pbs Interventions: Student And Parent Correlates, Michael Richardson, Paul Caldarella, Ben Young, Ellie L. Young Nov 2007

Adapting The Ssbd For Secondary School Pbs Interventions: Student And Parent Correlates, Michael Richardson, Paul Caldarella, Ben Young, Ellie L. Young

Faculty Publications

One of the most difficult challenges teachers and administrators face is behavior and emotional problems in students. However, some problems are difficult to clearly specify. Screening allows for a better match of treatment with individual needs. Screening allows for prevention and early intervention efforts, which reduce the need for more intensive services.

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Electrostatic Force Microscopy Studies Of Boron-Doped Diamond Films, Santosh Gupta, O. A. Williams, Eric W. Bohannan Nov 2007

Electrostatic Force Microscopy Studies Of Boron-Doped Diamond Films, Santosh Gupta, O. A. Williams, Eric W. Bohannan

Computer Science Faculty Research & Creative Works

Much has been learned from electrochemical properties of boron-doped diamond (BDD) thin films synthesized using microwave plasma-assisted chemical vapor deposition about the factors influencing electrochemical activity, but some characteristics are still not entirely understood, such as its electrical conductivity in relation with microscale structure. Therefore, to effectively utilize these materials, understanding both the microscopic structure and physical (electrical, in particular) properties becomes indispensable. in addition to topography using atomic force microscopy, electrostatic force microscopy (EFM) in phase mode measuring the long-range electrostatic force gradients, helps to map the electrical conductivity heterogeneity of boron-doped micro-/nanocrystalline diamond surfaces. the mapping of electrical …

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Clashing Cultures: A Model Of International Student Conflict, Ellen I. Shupe Nov 2007

Clashing Cultures: A Model Of International Student Conflict, Ellen I. Shupe

Peer Reviewed Articles

Although researchers have noted that interactions among people from different cultural backgrounds can result in interpersonal conflict, little is known about the nature of this conflict and its effects on the individuals involved. The current study attempts to address this gap in the literature. It conceptualizes interpersonal, intercultural conflict as a stressor and proposes and tests a model of conflict experiences, using data from graduate students representing approximately 50 countries. Results of path analyses of the model indicate that although cultural distance does not predict interpersonal, intercultural conflict, conflict strongly predicts poor work-related and sociocultural adaptation, and these negative effects …

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Combination Of Sar Remote Sensing And Gis For Monitoring Subglacial Volcanic Activity – Recent Results From Vatnajökull Ice Cap (Iceland), K. Scharrer, Rocco Malservisi, Ch. Mayer, O. Spieler, U. Münzer Nov 2007

Combination Of Sar Remote Sensing And Gis For Monitoring Subglacial Volcanic Activity – Recent Results From Vatnajökull Ice Cap (Iceland), K. Scharrer, Rocco Malservisi, Ch. Mayer, O. Spieler, U. Münzer

School of Geosciences Faculty and Staff Publications

This paper presents latest results from the combined use of SAR (Synthetic Aperture Radar) remote sensing and GIS providing detailed insights into recent volcanic activity under Vatnajökull ice cap (Iceland). Glaciers atop active volcanoes pose a constant potential danger to adjacent inhabited regions and infrastructure. Besides the usual volcanic hazards (lava flows, pyroclastic clouds, tephra falls, etc.), the volcano-ice interaction leads to enormous meltwater torrents (icelandic: jökulhlaup), devastating large areas in the surroundings of the affected glacier. The presented monitoring strategy addresses the three crucial questions: When will an eruption occur, where is the eruption site and which area is …

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Storming The Last Bastion: The Patent Reform Act Of 2007 And Its Assault On The Superior First-To-Invent Rule, Adam J. Sedia Nov 2007

Storming The Last Bastion: The Patent Reform Act Of 2007 And Its Assault On The Superior First-To-Invent Rule, Adam J. Sedia

DePaul Journal of Art, Technology & Intellectual Property Law

No abstract provided.

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A Tune-Up On The Engine Of Free Expression: The Traditional Contours Of Copyright In Golan, Keith Glaser Nov 2007

A Tune-Up On The Engine Of Free Expression: The Traditional Contours Of Copyright In Golan, Keith Glaser

DePaul Journal of Art, Technology & Intellectual Property Law

No abstract provided.

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Trade Dress Protection For Web Sites: Is It Time For The Law To Overtake Theory?, Matthew Formeller Nov 2007

Trade Dress Protection For Web Sites: Is It Time For The Law To Overtake Theory?, Matthew Formeller

DePaul Journal of Art, Technology & Intellectual Property Law

No abstract provided.

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