Digital Commons Network^™

Development Of An Instrument To Measure The Adoption Of Mobile Services, Shang Gao, John Krogstie, Keng Siau

Research Collection School Of Computing and Information Systems

Currently, there is no standard instrument for measuring user adoption of mobile services. Based on the mobile service acceptance model, this paper reports on the development of a survey instrument designed to measure user perception on mobile services acceptance. A survey instrument was developed by using some existing scales from prior instruments and by creating additional items which might appear to fit the construct definitions. In addition, a pilot study was conducted by distributing the survey to 25 users of a mobile service called Mobile Student Information Systems. As a result, a survey instrument containing 22 items were retained. Furthermore, …

Workshop Report From Web2se 2011: 2nd International Workshop On Web 2.0 For Software Engineering, Christoph Treude, Margaret-Anne Storey, Arie Van Deursen, Andrew Begel, Sue Black

Research Collection School Of Computing and Information Systems

Web 2.0 technologies, such as wikis, blogs, tags and feeds, have been adopted and adapted by software engineers. With the annual Web2SE workshop, we provide a venue for research on Web 2.0 for software engineering by highlighting state-of-the-art work, identifying current research areas, discussing implications of Web 2.0 on software engineering, and outlining the risks and challenges for researchers. This report highlights the paper and tool presentations, and the discussions among participants at Web2SE 2011 in Honolulu, as well as future directions of the Web2SE workshop community.

Mining Event Structures From Web Videos, Xiao Wu, Yi-Jie Lu, Qiang Peng, Chong-Wah Ngo

Research Collection School Of Computing and Information Systems

The article is discussing the issues of mining event structures from Web video search results using text analysis, burst detection, and clustering as with the proliferation of social media, the volume of Web videos have grown exponentially.

Efficient Strong Designated Verifier Signature Schemes Without Random Oracle Or With Non-Delegatability, Qiong Huang, Guomin Yang, Duncan S. Wong, Willy Susilo

Research Collection School Of Computing and Information Systems

Designated verifier signature (DVS) allows a signer to convince a designated verifier that a signature is generated by the signer without letting the verifier transfer the conviction to others, while the public can still tell that the signature must be generated by one of them. Strong DVS (SDVS) strengthens the latter part by restricting the public from telling whether the signature is generated by one of them or by someone else. In this paper, we propose two new SDVS schemes. Compared with existing SDVS schemes, the first new scheme has almost the same signature size and meanwhile, is proven secure …

Would Price Limits Have Made Any Difference To The 'Flash Crash' On May 6, 2010, Wing Bernard Lee, Shih-Fen Cheng, Annie Koh

Research Collection School Of Computing and Information Systems

On May 6, 2010, the U.S. equity markets experienced a brief but highly unusual drop in prices across a number of stocks and indices. The Dow Jones Industrial Average (see Figure 1) fell by approximately 9% in a matter of minutes, and several stocks were traded down sharply before recovering a short time later. The authors contend that the events of May 6, 2010 exhibit patterns consistent with the type of "flash crash" observed in their earlier study (2010). This paper describes the results of nine different simulations created by using a large-scale computer model to reconstruct the critical elements …

A Usability Study Of A Mobile Content Sharing System, Alton Yeow-Kuan Chua, Dion Hoe-Lian Goh, Khasfariyati Razikin, Ee Peng Lim

Research Collection School Of Computing and Information Systems

We investigate the usability of MobiTOP (Mobile Tagging of Objects and People), a mobile location-based content sharing system. MobiTOP allows users to annotate real world locations with both multimedia and textual content and concurrently, share the annotations among its users. In addition, MobiTOP provides additional functionality such as clustering of annotations and advanced search and filtering options. A usability evaluation of the system was conducted in the context of a travel companion for tourists. The results suggested the potential of the system in terms of functionality for mobile content sharing. Participants agreed that the features in MobiTOP were generally usable …

Enhancing Bag-Of-Words Models By Efficient Semantics-Preserving Metric Learning, Lei Wu, Steven C. H. Hoi

Research Collection School Of Computing and Information Systems

The authors present an online semantics preserving, metric learning technique for improving the bag-of-words model and addressing the semantic-gap issue. This article investigates the challenge of reducing the semantic gap for building BoW models for image representation; propose a novel OSPML algorithm for enhancing BoW by minimizing the semantic loss, which is efficient and scalable for enhancing BoW models for large-scale applications; apply the proposed technique for large-scale image annotation and object recognition; and compare it to the state of the art.

Lexical Stress And Phonetic Processing In Word Learning In 20-To 24-Month-Old English-Learning Children, Caroline Floccia, Thierry Nazzi, Keith Austin, Frédérique Arreckx, Jeremy Goslin

School of Psychology

No abstract provided.

Development Of Lower Cost Imaging Systems For Laser Metal Deposition Process, Shyam Barua

Masters Theses

"Laser Metal Deposition (LMD) has been used as an additive manufacturing process in industries such as aerospace and die castings. LMD is especially useful in repair applications involving die repair. However, it is still not used widely in industry due to variations in the quality of parts. There are multiple interactions between various factors which influence the quality of deposit.

There exists a need for defect detection systems to detect any changes in the deposition quality during deposition. On demand detection enables adjustment in process parameters and minimization of rework cost.

Vision systems have been used extensively in the industry …

Development Of A Graphical User Interface For The Study Of Parallel-Connected Solar Arrays, Nisha Nagarajan

Masters Theses

"For any solar array it is necessary to be able to harness the maximum possible power from it. A new technology is proposed to improve the efficiency of solar arrays and harness maximum potential power as well by connecting the solar panels in parallel. This thesis describes the development of a graphical user interface for the evaluation of this parallel-connected solar array technology and to compare different scenarios for solar arrays to predict the potential power output to decide the best configuration for an application. This is done via several computations and analysis of field data. The first paper describes …

Synthesis And Toxicity Studies Of Imidazolium-Based Ionic Liquids, Ninu Madria

Masters Theses

"There is a considerable recent interest in the applications of room temperature ionic liquids (RTILs) as green solvents in organic synthesis and as nonvolatile electrolytes in lithium ion batteries. A variety of commercially available imidazolium based RTILs have been used for these applications, mainly due to their negligible vapor pressures, high thermal stabilities, wide liquid range, wide electrochemical windows and high anodic stability. The state of the art lithium ion batteries require the use of electrolytes that have relatively low viscosities at temperatures as low as -35°C. This thesis describes the synthesis of novel oxygenated and fluorinated imidazolium based RTILs …

Crustal Structure And Evolution Beneath The Colorado Plateau And The Southern Basin And Range Province, Lamuail Bashir

Doctoral Dissertations

"Stacking of about 15,500 P-to-S receiver functions recorded at 72 USArray and other broadband seismic stations placed on the Colorado Plateau and the SBRP in Arizona revealed systematic spatial variations in crustal Vp/Vs, crustal thickness and amplitude of P-to-S converted phases. Our results reveal that the BRP is characterized by a thin crust (28.2 ± 0.5 km), a mean Vp/Vs of 1.761 ± 0.014 and a mean amplitude (R) of P - to - S converted wave (relative to that of the direct P wave) of 0.181 ± 0.014 that are similar to a typical continental crust, consistent with the …

Impact Of Channel Statistics And Correlation On Underwater Acoustic Communication Systems, Jesse Scott Cross

Masters Theses

"Several statistical properties of underwater acoustic channels gathered from experiment data are analyzed. The baseband channel impulse response (CIR) is estimated using a time domain least squares technique with a sliding window applied to the probing sequences. From the CIR estimation, the probability distribution functions (PDFs) of the magnitude, real part, imaginary part, and phase of the CIR are calculated. Gamma, Rayleigh, and compound k distributions are fitted to the magnitude PDF and the fitness of the distributions are calculated with a two-sample Kolmogorov-Smirnov test. Other statistics such as the autocorrelation function, coherence time, and scattering function are evaluated. The …

Quantifying The Carbon Footprint Of Lean Waste, Kristen Donovan Balinski

Masters Theses

"The objective of this paper is to provide a method of quantifying lean wastes in terms of carbon dioxide emissions by using value stream mapping. Lean manufacturing, a process based on waste identification and reduction, is a growing trend in industry and a proven method of lowering costs. The environmental impact of these wastes can be quantified by identifying the metrics associated with them, and using existing reports to convert those metrics into measurements of carbon dioxide. Growing environmental concerns are prompting federal government regulation of greenhouse gas or carbon dioxide emissions, as seen in the American Clean Energy and …

Analysis And Modeling Of Depth-Of-Cut During End Milling Of Deposited Material, Haythem Gaja

Masters Theses

"This study addresses depth-of-cut detection and tool-workpiece engagement using an acoustic emission monitoring system during milling machining for a deposited material. Online detection of depth-of-cut presents many technical difficulties. Researchers have used various types of sensors and methods to assess the depth-of-cut and surface errors. Due to the strong correlation between acoustic emission and cutting depth during the depth end milling process, it is useful to forecast the depth-of-cut from the acoustic emission signal. This work used regression analysis to model and detect the depth-of-cut. The experiments were carried out on a Fadal vertical 5-Axis computer numerical control machine using …

The Origin Of Quartz Glomerocrysts: Insights From The Rhyolite Dike At Medicine Park, Ok, Sedeg Ahmed E. Ahmed

Masters Theses

"The origin of quartz glomerocrysts a distinctive petrographic feature of the rhyolite dike in Medicine Park, Oklahoma, was investigated using transmitted light and cathodoluminescence microscopy to determine if quartz glomerocrysts formed during quartz crystallization or during quartz dissolution. Quartz glomerocrysts are typically comprised of two to six individual phenocrysts of quartz and commonly exhibit subhedral partially embayed crystal forms with very rare euhedral phenocrysts in both glomerocrysts and individual quartz phenocrysts. The size range of the individual quartz phenocrysts are 0.08mm to 1.7mm while the size range is 0.08mm to 3.25mm for quartz glomerocrysts . Cathodoluminescence revealed that individual quartz …

Evaluating The Effectiveness Of Multi-Spectral Remote Sensing Data For Lithological Mapping In Arid Regions: A Quantitative Approach With Examples From The Makkah Neoproterozoic Region, Saudi Arabia, Nawwaf Awad Al Muntshry

Masters Theses

"This work quantitatively evaluates the effectiveness of multi-spectral remote sensing data for geological mapping in arid regions. For this, Landsat Thematic Mapper (TM) data covering part of the Neoproterozoic Arabian Shield around the Makkah region in Saudi Arabia are used. The Makkah region is dominated by a variety of layered and intrusive rocks covered by unconsolidated sediments. The Landsat TM data have six spectral bands in the visible and near infrared (VNIR) and shortwave infrared (SWIR) with thirty meters spatial resolution.

The Optimum Index Factor (OIF) has been computed to determine the best Red-Green-Blue (RGB) band combination emerging from the …

Unsex Cedaw, Or What’S Wrong With Women’S Rights, Darren Rosenblum

Faculty Publications

(Excerpt)

CEDAW, signed on July 17, 1980 by sixty-four countries, has as its principal goals the protection and promotion of women's rights and the elimination of discrimination against women. As of March 7, 2011, 186 countries—more than ninety­ percent of the United Nations' member states—are parties to the Convention. The most notable non-party to the Convention is the United States. In addition, as of May 15, 2010, there are seventy-nine Signatories and ninety-nine Parties to the Optional Protocol, a supplement io CEDAW designed to remedy some of the treaty's shortcomings. Although challenges have hobbled implementation of CEDAW, it remains the …

The “Asian” Category In Mcas Achievement Gap Tracking: Time For A Change, Philip Lee

Faculty Publications

(Excerpt)

Data gathered on Asian American students in public school by the Massachusetts Department of Elementary and Secondary Education is aggregated into one general “Asian” category, which may skew the results, both perpetuating an enduring myth and masking any true gaps that may exist for certain Asian American subgroups. As explored in this article, achievement gap tracking for the Massachusetts Comprehensive Assessment System (MCAS) is an apt example.

The Price Of The Ottoman Failure, Mark L. Movsesian

Faculty Publications

(Excerpt)

The question of the implications of secularization for Christian communities in today’s Middle East is a difficult one, both because the extent of contemporary secularization in the region is contested, and because the term itself has so many different meanings. Nonetheless, a preliminary consideration imposes itself. Whatever else it means, secularization means legal equality for religious minorities, including Christians. Formal equality often exists in the Middle East today. Yet legal restrictions – apostasy prosecutions, limitations on clergy and churches, and so on – continue to pose real threats to Christians. Moreover, as Abdullahi An-Na‘im notes, ‘tension with the traditional …

Introduction: Contains Cover, Table Of Contents, Letter From The Editor, And Masthead, Francis C. Oroszlan

Richmond Journal of Law & Technology

The Richmond Journal of Law and Technology is proud to present its second issue of the 2010–2011 academic year.

Teacher Cell Phone Searches In Light Of Ontario V. Quon, Joseph O. Oluwole

Richmond Journal of Law & Technology

Technological innovations permeate almost every inch of society. From the government and corporate workforce to family and social settings, technology seemingly knows no boundaries. Technology’s limitless reach has even crossed into the realm of public schools, where, according to teacher Lyn Newton, “[s]chool principals are witnessing more and more cell phone use by their teachers.” Teachers, like other cell phone users, use cell phones not only for making phone calls, but also for taking pictures and texting, which has landed some teachers in trouble for inappropriate communications. Indeed, the sexting wave has not eluded teachers.

Introduction: Contains Cover, Table Of Contents, Letter From The Editor, And Masthead, Stephen J. Rancourt

Richmond Journal of Law & Technology

The Richmond Journal of Law and Technology is proud to present its Annual Survey issue of the 2010–2011 academic year. The Journal strives to find interesting and contemporary topics that bisect technology and the law, and publish authors who provide in-depth and practical analysis of these topics to the legal community and beyond. To that end, this year’s Annual Survey is devoted exclusively to the topic of electronic discovery. In the two years since the Journal last published on this important issue, the availability of electronic information has increased exponentially, courts have continued to struggle with the 2006 Amendments to …

Spilling Secrets: Trade Secret Disclosure And Takings In Offshore Drilling Regulation, Michael A. Greene

Richmond Journal of Law & Technology

This Article will explore whether the law may require the disclosure of adequate proprietary information to enable effective regulation. Part II will discuss the settled law regarding the property status of trade secrets, the regulatory takings doctrine, the applicability of the Takings Clause of the United States Constitution to proprietary data, and the exactions doctrine. Part III will explore the validity of the mandatory submission of proprietary health, safety, and environmental data to government regulators, with the guarantee that such data will be kept secret from competitors and the public. Part IV will then explore the validity of regulation mandating …

Current And Emerging Transportation Technology: Final Nails In The Coffin Of The Dying Right Of Privacy?, James D. Phillips, Katharine E. Kohm

Richmond Journal of Law & Technology

Transportation networks constitute “the circulatory system of our economy.” The distinct modes that constitute the American transportation system—air, rail, transit, highways, and waterways—impact the entire range of our daily activities. Just as the human body depends on its circulatory system for life and well being, the United States’ vitality would grind to a halting stop without a vibrant transportation system.

Persistence To An Associate Of Applied Science Registered Nurse Degree: The Impact Of Placing Into Developmental Education Courses On Student Success, Caroline Clark Rivera

Educational Leadership & Workforce Development Theses & Dissertations

Student retention and success in nursing school has gained favor in educational research due to an increasing shortage of Registered Nurses. The purpose of this study is to measure the impact of student placement recommendation into developmental education courses on persistence to an Associate of Applied Science Registered Nurse degree. Using ex post facto research methodology rooted in the retention theories of Tinto, Bean and Metzner, and Jeffreys, this study aims to measure the effect of high school diploma type, age, race/ethnicity, and pre-requisite courses on student placement recommendation in developmental education and persistence to an Associate of Applied Science …

Elementary Teachers' Views Of Environmental Education, Rose M. Hotchkiss

Teaching & Learning Theses & Dissertations

The purpose of this research is to examine teachers' views of environmental education (EE) at the elementary level. The study addresses teachers' attitudes toward the EE at the elementary school level and their self-efficacy in teaching EE.

The study's sample consisted of 201 randomly selected kindergarten through fifth grade United States public school teachers. The participants completed an on-line survey with eight percent of the respondents participating in follow up interviews. The questionnaire measured two constructs; Teachers Attitudes Toward EE and Teacher Efficacy in EE. Teachers Attitudes Toward EE had 3 subscales; Advocacy for EE, Stewardship in EE, …

Community Of Inquiry Framework And Learning Outcomes, Jennifer Ann Maddrell

STEMPS Theses & Dissertations

First described by Garrison, Anderson, and Archer (2000), the Community of Inquiry (CoI) framework suggests social presence, teaching presence, and cognitive presence are essential elements to foster successful educational experiences in computer-mediated higher education distance learning environments. While hundreds of CoI-based articles have been published since 2000, those critical of the framework and related research suggested a lack of empirical evidence to support the framework's central claim that a CoI leads to deep and meaningful learning outcomes (Rourke & Kanuka, 2009). The current study, conducted with 51 graduate students in five distance education courses at the same university, compared the …

Google Scholar: Friend Or Foe?, John Glover

VCU Libraries Faculty and Staff Presentations

No abstract provided.

Ogalala Sioux Tribal Profile, Karen Kimbro Chase

Tribal Law Journal

This profile offers an excellent overview of Oglala Sioux law, both traditional and modern. Like many tribes, the Indian Reorganization Act had a major impact on the contemporary law of the Oglala Sioux. While the IRA resulted in tribal constitutions that reflected the values of the U.S. Constitution, this profile examines the traditional and customary law that was subsequently incorporated into the Oglala Sioux Constitution. This profile includes a brief history of the Oglala Sioux, overview of traditional law, governmental structure, summary of contemporary law, and history of political activism.