Digital Commons Network^™

The Electronic Recording Of Criminal Interrogations, Roberto Iraola

University of Richmond Law Review

Should law enforcement officers be required to record, by video or audiotape, custodial interrogations of suspects? If so, how much, the entire interrogation or just the confession? Many prosecutors and police departments maintain that a recording requirement will hamper law enforcement and discourage suspects from talking. Proponents of this measure argue that the recording of interrogations protects against false confessions, augments the effective administration of justice, and serves to improve the relationship between the public and the police.

This article generally examines the developing case law on this question. Because of the incriminating nature of confessions, the article, by way …

The Shield 2006, Shield

Murray State University Yearbooks

Murray State University Yearbook, 2006

The Effects Of Hallucination Simulations On Neurocognition: An Investigation Of Auditory Hallucinations Using The Irrelevant Speech Paradigm, Suzanne Adele Horsager

Dissertations and Theses @ UNI

Research has made it clear that severe psychiatric disorders, such as schizophrenia, are often associated with deficits in neurocognition. Unfortunately, because of the complicated makeup of most psychiatric disorders, it is challenging to distinguish the nature of the neurocognitive deficits. Recent research has begun to look more specifically at the symptoms of these disorders ( e.g., auditory hallucinations) to examine the specific effects the symptoms have on patients. This research has suggested a link between auditory hallucinations and deficits in attentional inhibition as well as working memory abilities. However, current research has not considered whether the impairments associated with these …

Graduate Catalog 2006-2007, University Of North Florida

UNF Course Catalogs

No abstract provided.

Undergraduate Catalog 2006-2007, University Of North Florida

UNF Course Catalogs

No abstract provided.

Using Social Development Lenses To Understand E-Government Development, Keng Siau, Y. Long

Research Collection School Of Computing and Information Systems

As governments at different levels and all around the world are increasingly using the Web to enhance and improve their services, understanding e-government development and exploring factors that affect e-government development have become important research topics. The purpose of this research is to investigate factors explaining e-government development in terms of social development lenses. Based on growth and regional development theories, the paper hypothesizes that income level, development status, and region are three factors that differentiate e- government development in countries. Group comparison tests are conducted using secondary data from the United Nations and the United Nations Development Programme. The …

Mexicans In New York City, 1990 - 2005, Laird W. Bergad

Center for Latin American, Caribbean, and Latino Studies

Introduction: This study examines demographic and socioeconomic aspects of the Mexican population of the New York City area from 1990-2005.

Methods: Data on Latinos and other racial/ethnic groups were obtained from the U.S. Census Bureau American Community Survey, reorganized for public use by the Minnesota Population Center, University of Minnesota, IPUMSusa. Cases in the dataset were weighted and analyzed to produce population estimates.

Results: The Mexican-origin population of New York City was the city’s fastest-growing Latino national group between 1990 and 2005. From a population of 55,587 in 1990 Mexicans increased to 183,792 in 2000 and 227,842 in 2005.1 By …

Unemployment And Labor Force Participation Rates Among Racial/Ethnic Groups And Latino Nationalities In The New York Metro Area And The Five Boroughs, Laura Limonic

Center for Latin American, Caribbean, and Latino Studies

Introduction:

This report details the unemployment rates among Latino origin groups and racial/ethnic groups in the New York Metro area. The data are broken down by boroughs and by the eight largest Latino origin groups in New York: Puerto Ricans, Dominicans, Mexicans, Cubans, Colombians, Guatemalans, Peruvians and Ecuadorians.

Methods:

The data for this report were derived from the 2005 American Community Survey published by the U.S. Census Bureau. Data examined in this report are unemployment rates and rates of labor force non-participation rates. The U.S. Census classifies those not in the labor force as anyone who is not working nor …

Private And Public School Attendance Patterns Among New York City’S Racial/Ethnic Groups And Latino Nationalities In 2000, Cecilia Salvatierra

Center for Latin American, Caribbean, and Latino Studies

Introduction: This study examines demographic and socioeconomic factors concerning New York City racial/ethnic groups in 2000 – particularly private and public school attendance rates.

Methods: Data on Latinos and other racial/ethnic groups were obtained from the U.S. Census Bureau American Community Survey, reorganized for public use by the Minnesota Population Center, University of Minnesota, IPUMSusa. Cases in the dataset were weighted and analyzed to produce population estimates.

Results: Data indicated that total White educational enrollment for all grades was evenly divided between public and private education, with 49.6% of all students enrolled in public educational institutions and 50.4% enrolled in …

Improving Channel Throughput Of Wlans And Ad Hoc Networks Using Explicit Denial Of Requests, Maggie Xiaoyan Cheng, Yadi Ma, Yi Wang

Computer Science Faculty Research & Creative Works

A new Multiple Access Control scheme for wireless ad hoc networks and WLANs is proposed. This scheme uses explicit denial of channel requests and a busy tone to improve channel throughput. Performance analysis shows significant improvement when the network is under heavy traffic load.

Conceptualization Of Trust, Commitment, And Understanding The Relationships Between Trust, Commitment, And Willingness To Try Internet Banking Services, Siew Tong Fock, Hian Chye Koh

Research Collection Lee Kong Chian School Of Business

This paper examines trust and commitment and their antecedents and consequences within the context of Internet banking, based on data collected from a survey of 500 Singapore undergraduates. After the establishment of a conceptual model that links trust and commitment to the willingness to try Internet banking, the empirical findings show that higher levels of trust and commitment are significantly associated with a greater willingness to try Internet banking. The paper also investigates security, ethics, privacy, openness, the speed of response, quality of information, regulatory control, technology advancement, and reputation as determinants of trust. Of these, security, regulatory control, technology …

Called Up To The Big Leagues: An Examination Of The Factors Affecting The Location Of Minor League Baseball Teams, Michael C. Davis

Economics Faculty Research & Creative Works

In this study we analyze the factors that determine whether a particular city has a minor league baseball team and the level at which that team competes. Using the generalized ordered logit model we determine that higher population, personal income, and time from nearest Major League Baseball team all have a positive effect on the city's having a minor league baseball team and having one at a higher level. The finding that personal income has a positive effect on the level of the baseball team, combined with past studies suggesting income does not affect minor league baseball attendance, leads us …

The Antecedents Of M-Commerce Adoption, Morris Kalliny, Michael S. Minor

Business and Information Technology Faculty Research & Creative Works

The growth of Internet shopping has been attributed to rapid advances in technology and other influences such as convenience. We empirically investigate the relationship between demographics, ease of use, convenience, usefulness and enjoyment and intention to use m-commerce and attitude toward m-commerce. Two studies were conducted where a student and a non student sample was used. Data analysis revealed age, gender and educational level of customers do not play a role in influencing intention to use m-commerce. However, convenience, ease of use, usefulness and enjoyment all play a role in the customer's intention to use m-commerce.

Adapting User Interface To Expedite Physician Order Entry: A Frontline To Ensure Patient Safety, Chiang S. Jao, Daniel B. Hier

Chemistry Faculty Research & Creative Works

Preventable Medical Errors Are a Major Problem in Healthcare. Maintenance of Accurate Problem Lists and Drug Lists in the Electronic Medical Record is Critical to the Practice of Medicine and Patient Safety. We Built a Simulator of a Clinical Decision Support System that Automates the Process of Maintaining an Electronic Problem List by Processing Drug Order Requests from a Simulated Computerized Physician Order Entry System. Preliminary Results Revealed that the Productivity of the System Increased When the User Interface Was Improved. This Study Highlights the Importance of an Enhanced User Interface as a Frontline in Expediting Physician Data Entry, Streamlining …

Practical Experiences In Using Model-Driven Engineering To Develop Trustworthy Computing Systems, Thomas Weigert, Frank Weil

Computer Science Faculty Research & Creative Works

In this paper, we describe how Motorola has deployed model-driven engineering in product development, in particular for the development of trustworthy and highly reliable telecommunications systems, and outline the benefits obtained. Model-driven engineering has dramatically increased both the quality and the reliability of software developed in our organization, as well as the productivity of our software engineers. Our experience demonstrates that model-driven engineering significantly improves the development process for trustworthy computing systems.

Multimedia Correlation Analysis In Unstructured Peer-To-Peer Network, Bo Yang, A. R. Hurson, Yu Jiao, Thomas E. Potok

Computer Science Faculty Research & Creative Works

Recent years saw the rapid development of peer-topeer (P2P) networks in a great variety of applications. However, similarity-based k-nearest-neighbor retrieval (k-NN) is still a challenging task in P2P networks due to the multiple constraints such as the dynamic topologies and the unpredictable data updates. Caching is an attractive solution that reduces network traffic and hence could remedy the technological constraints of P2P networks. However, traditional caching techniques have some major shortcomings that make them unsuitable for similarity search, such as the lack of semantic locality representation and the rigidness of exact matching on data objects. To facilitate the efficient similarity …

A Hierarchical Secure Routing Protocol Against Black Hole Attacks In Sensor Networks, Jian Yin, Sanjay Kumar Madria

Computer Science Faculty Research & Creative Works

A black hole attack is a severe attack that can be easily employed against routing in sensor networks. In a black hole attack, a malicious node spuriously announces a short route to the sink node (the destination) to attract additional traffic to the malicious node and then drops them. In this paper, we propose a hierarchical secure routing protocol for detecting and defending against black hole attacks. The proposed protocol uses only symmetric key cryptography to discover a safe route against black hole attacks. The comparison of the proposed protocol with two other existing approaches proves that the proposed scheme …

An Internet Based Intelligent Argumentation System For Collaborative Engineering Design, Xiaoqing Frank Liu, Samir Raorane, Man Zheng, Ming-Chuan Leu

Computer Science Faculty Research & Creative Works

Modern product design is a very complicated process which involves groups of designers, manufacturers, suppliers, and customer representatives. Conflicts are unavoidable in collaboration among multiple stakeholders, who have different objectives, requirements, and priorities. Unfortunately, current web-based collaborative engineering design systems do not support collaborative conflict resolution. In this paper, we will develop an intelligent computational argumentation model to enable management of a large scale argumentation network, and resolution of conflicts based on argumentation from many participants. A web-based intelligent argumentation tool is developed as a part of a web-based collaborative engineering design system based on the above model to resolve …

Cadre: A Collaborative Replica Allocation And Deallocation Approach For Mobile-P2p Networks, Anirban Mondal, Sanjay Kumar Madria, Masaru Kitsuregawa

Computer Science Faculty Research & Creative Works

This paper proposes CADRE (Collaborative Allocation and Deallocation of Replicas with Efficiency), a dynamic replication scheme for improving the typically low data availability in mobile ad-hoc peer-to-peer (M-P2P) networks. The main contributions of CADRE are two-fold. First, it collaboratively performs both replica allocation and deallocation in tandem to facilitate optimal replication and to avoid 'thrashing' conditions. Second, it addresses fair replica allocation across the MHs. CADRE deploys a hybrid super-peer architecture in which some of the MHs act as the 'gateway nodes' (GNs) in a given region. GNs facilitate both search and replication. Our performance study indicates that CADRE indeed …

Secrout: A Secure Routing Protocol For Sensor Networks, Jian Yin, Sanjay Kumar Madria

Computer Science Faculty Research & Creative Works

In this paper, we present a secure routing protocol for sensor networks (SecRout) to safeguard sensor networks under different types of attacks. The SecRout protocol uses the symmetric cryptography to secure messages, and uses a small cache in sensor nodes to record the partial routing path (previous and next nodes) to the destination. It guarantees that the destination will be able to identify and discard the tampered messages and ensure that the messages received are not tampered. Comparing the performance with non-secure routing protocol AODV (ad hoc on demand distance vector routing), the SecRout protocol only has a small byte …

A Mathematical Formulation Of Dna Computation, Mingjun Zhang, Maggie Xiaoyan Cheng, Tzyh-Jong Tarn

Computer Science Faculty Research & Creative Works

DNA computation is to use DNA molecules for information storing and processing. The task is accomplished by encoding and interpreting DNA molecules in suspended solutions before and after the complementary binding reactions. DNA computation is attractive, due to its fast parallel information processing, remarkable energy efficiency, and high storing capacity. Challenges currently faced by DNA computation are (1) lack of theoretical computational models for applications, and (2) high error rate for implementation. This paper attempts to address these problems from mathematical modeling and genetic coding aspects. The first part of this paper presents a mathematical formulation of DNA computation. The …

Studies In Slang, Vii, Barry A. Popik, Gerald Leonard Cohen

Arts, Languages and Philosophy Faculty Research & Creative Works

No abstract provided.

Using Cognitive Mapping Techniques To Supplement Uml And Up In Information Requirements Determination, Keng Siau, Tan Xin

Research Collection School Of Computing and Information Systems

Information requirements determination is a critical task in system development projects. Many human issues may hinder the efforts to accurately capture and clearly understand users' information requirements. In this paper, we review the cognitive underpinnings of some human issues, which are discussed in existing literature and relevant to information requirements determination. We then propose the use of cognitive mapping techniques in the process of information requirements determination. Three widely used cognitive mapping techniques - causal mapping, semantic mapping, and concept mapping – are briefly introduced in this article. A case is used to illustrate how to use these cognitive mapping …

E-Healthcare In Abc County Health Department (Abcchd): Trade-Offs Analysis And Evaluation, Keng Siau, Hwee-Joo Kam

Research Collection School Of Computing and Information Systems

The issue of privacy stirred a tumultuous uproar when the ABC County Health Department (ABCCHD) was planning for an e-Healthcare system that utilized information technology to streamline the administration process of patients. ABCCHD had hired a software vendor, Info-Health, a company that specialized in information system development for the healthcare industry to help in the project. The privacy of patients with Sexually Transmitted Diseases/Human Immunity System was a thorny issue in the implementation of the e-Healthcare system. A trade-off between privacy and cost was discussed and debated. Three alternatives, with varying degrees of privacy and cost, were considered.

Electrochemical Deposition And Characterization Of Fe₃O₄ Films Produced By The Reduction Of Fe(Iii)-Triethanolamine, Hiten M. Kothari, Elizabeth A. Kulp, Steven J. Limmer, Philippe Poizot, Eric W. Bohannan, Jay A. Switzer

Chemistry Faculty Research & Creative Works

In this paper, we demonstrate that films of magnetite, Fe₃O₄, can be deposited by the electrochemical reduction of a Fe(III)-triethanolamine complex in aqueous alkaline solution. the films were deposited with a columnar microstructure and a [100] preferred orientation on stainless steel substrates. In-plane electrical transport and magnetoresistance measurements were performed on the films after they were stripped off onto glass substrates. the resistance of the films was dependent on the oxygen partial pressure. We attribute the increase in resistance in O₂ and the decrease in resistance in Ar to the oxidation and reduction of grain …

A Comparative Study Of The Properties Of Polar And Nonpolar Solvent/Solute/Polystyrene Solutions In Microwave Fields Via Molecular Dynamics, Mark J. Purdue, Macduff O. Okuom, Frank D. Blum, James M. D. Macelroy, D. F. O'Shea

Chemistry Faculty Research & Creative Works

The influence of an applied microwave field on the dynamics of methylamine-dichloromethane (DCM) mixtures bound within atactic polystyrene (a-PS) over a range of polymer densities from 30 to 94 wt % polymer was examined using atomistic molecular dynamics simulations. This study is an extension of previous studies on methylamine transport in relatively polar polystyrene solutions of methanol and dimethylformamide [M. J. Purdue et al., J. Chem. Phys. 124, 204904 (2006)]. A direct comparison is made across the three types of polystyrene solutions. Consideration is given to both solvent and reagent transport within the polymer solutions under zero-field conditions and in …

Acid-Catalyzed Time-Efficient Synthesis Of Resorcinol-Formaldehyde Aerogels And Crosslinking With Isocyanates, Sudhir Mulik, Chariklia Sotiriou-Leventis, Nicholas Leventis

Chemistry Faculty Research & Creative Works

Aerogels are open-cell foams derived from supercritical fluid (SCF) drying of wet gels. Their large internal void space is responsible for low thermal conductivity, high surface area and high acoustic impedance. Most aerogels are based on inorganic metal or semimetal oxide frameworks. Pekala and co-workers synthesized resorcinol-formaldehyde (RF) organic aerogels by poly-condensation of resorcinol with formaldehyde in the presence of Na₂CO₃ as base catalyst, followed by drying with SCF CO₂. Low-density RF aerogels prepared by this method exhibit high porosities (>80%), high surface areas (400-900 m²g^-1), ultrafine cell-size (<500 > Å) …

Conformal Internal Coating Of Macroporous Co-Continuous Mcf-Silicas With Isocyanate Derived Polymers, Nicholas Leventis, Chariklia Sotiriou-Leventis, Xiaojiang Wang, Sudhir Mulik

Chemistry Faculty Research & Creative Works

Since their discovery in 1992,1,2 templating sol-gel silica with structuredirecting agents has resulted in new materials with ordered mesoporous (2-50 nm) structure that is investigated for application in areas as diverse as high surface area supports for caralysts or as nanostructured drug storage and release platforms.3 Structure-directing agents are typically surfactants ranging from cationic detergents such as alkyl-trimethylammonium salts with C8-C18 hydrocarbon chains to non-ionic tertiary amines, polyethylene oxide or amphiphilic triblock copolymers such as poly(ethyleneoxide)-blockpoly( propyleneoxide)-block-poly(ethyleneoxide) (e.g., Pluronic P123). Depending on the surfactant and the conditions (e.g., kind and concentration of catalyst) the structure of the mesopores may vary …

Segmental Dynamics In Poly(Methyl Acrylate) On Silica: Molecular-Mass Effects, Burak Metin, Frank D. Blum

Chemistry Faculty Research & Creative Works

The effect of molecular mass on the segmental dynamics of poly(methyl acrylate) (PMA) adsorbed on silica was studied using deuterium quadrupole-echo nuclear magnetic resonance (NMR) and modulated differential scanning calorimetry. Samples adsorbed on silica (all about 1.5 mg PMA/m2 silica) were shown to have more restricted segmental mobility, and higher Tg's, than the corresponding bulk PMA samples. Around the glass-transition region, adsorbed samples exhibited segmental mobility, which could be classified as heterogeneous due to a superposition of more-mobile and less-mobile components present in the deuterium NMR spectra. This heterogeneity was consistent with a motional gradient with more-mobile segments near the …

Pack Station, Robert Theodore Gail

Graduate Student Theses, Dissertations, & Professional Papers

Prologue He was as broken-down an old horseshoer as I had ever met, but by God could he shoe a horse. How he did it seemed to be some mystery acquired over a lifetime of bending over beneath a million horses and mules. And yet maybe there wasn’t any mystery at all. Maybe it was simply that over the course of those million or so animals he’d lost the hesitation and doubt and fear the rest of us struggled with from time to time,and just got shoes on the damn things—though with as much beauty and skill as a guy …