Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2010

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 19531 - 19560 of 22593

Full-Text Articles in Entire DC Network

School Psychologists' Attitudes Toward Bullying And Homosexuality, Kimberly M. Hill Perry Jan 2010

School Psychologists' Attitudes Toward Bullying And Homosexuality, Kimberly M. Hill Perry

Open Access Dissertations

The purpose of this study was to investigate school psychologists' attitudes regarding bullying and homosexuality, to explore perceived differences between general bullying incidents and gay, lesbian, and bisexual (GLB) related bullying incidents, and to gather information about the presence of anti-bullying policies and programs in schools. Three hundred and thirty-one randomly sampled school psychologists who were current members of the National Association of School Psychologists (NASP) participated in the study. Participants' attitudes regarding bullying and homosexuality were explored. The results were encouraging as the school psychologists endorsed factors that suggested they are not tolerant of bullying behaviors as measured by …

Go to article

Around, Alongside, Inside, And In-Between: The Geometries Of Performance In Contemporary U.S. Play And Film, Piotr A. Skuza Jan 2010

Around, Alongside, Inside, And In-Between: The Geometries Of Performance In Contemporary U.S. Play And Film, Piotr A. Skuza

Open Access Dissertations

Divided into four consecutive chapters, The Geometries of Performance is a study of how Don DeLillo's play Valparaiso and Barry Levinson's film production Wag the Dog both demonstrate and inform readers, spectators, and viewers, through the performative nature of both sources, about the intersections of Patricia Pisters's notion of "camera consciousness" and Roy Ascott's "network consciousness": how such intersections are formed, how they emerge and operate in the contexts of modern technologies of perception, and how they affect contemporary audience. In chapter 1, "Valparaiso: Möbius Strip I or, In the Regime of Monads (Tell us everything')," I study Don DeLillo's …

Go to article

The Regulation And Processing Of The Empa Metalloprotease Of Vibrio Anguillarum, Maureen Varina Jan 2010

The Regulation And Processing Of The Empa Metalloprotease Of Vibrio Anguillarum, Maureen Varina

Open Access Dissertations

Vibrio anguillarum is the causative agent of vibriosis, a systemic disease of fish characterized by a hemorrhagic septicemia that results in high mortalities. EmpA has been identified as a virulence factor during infection of the GI tract of juvenile Atlantic salmon. EmpA activity is dependent on successful secretion and processing of the nascent protein to an active mature protease. This study was conducted to identify and characterize the gene(s) involved in the processing mechanism of the EmpA protein. Pro-EmpA is secreted out of the cell and is activated by the cleavage of a ∼10-kDa propeptide. It has been hypothesized that …

Go to article

The Drift: Rethinking The Affective Dynamics Of Adaptation, John Hodgkins Jan 2010

The Drift: Rethinking The Affective Dynamics Of Adaptation, John Hodgkins

Open Access Dissertations

The Drift effects a deeper understanding of the dynamic relationship between literature and cinema by articulating an "affective turn" for adaptation studies, a field whose traditional focus has been the critical castigation of filmic adaptations based on canonical plays or novels. Specifically, this project draws on theorists such as Gilles Deleuze, Brian Massumi, and Marco Abel to re-conceive literary and cinematic texts as spatio-temporal engines generating and disseminating affect, and the adaptive process as a drifting of those intensities from one medium to another. By conceptualizing adaptation in this manner, this study steers clear of the chimerical notion of fidelity …

Go to article

Older Adult Alcohol Misuse: Attitudes, Knowledge, And Support For Prevention Policies And Practices Among Aging Services Practitioners, Crystelle A. Egan Jan 2010

Older Adult Alcohol Misuse: Attitudes, Knowledge, And Support For Prevention Policies And Practices Among Aging Services Practitioners, Crystelle A. Egan

Open Access Dissertations

Alcohol misuse is prevalent among older adults and is projected to increase. Alcohol misuse includes: 1) at risk consumption patterns and 2) problem use already resulting in negative consequences. An increase in alcohol misuse prevention efforts targeted to adults 65 and older is necessary to address this public health issue. Aging services practitioners are key gatekeepers to the older population, yet anecdotal discussion in the research literature suggests that negative attitudes about older adult alcohol misuse (denial, fatalism, and therapeutic nihilism) may decrease their likelihood of supporting prevention efforts. A national sample of 136 Resident Service Coordinators completed an online …

Go to article

The Development Of Novel Mr Molecular Imaging Agents Towards The Visualization Of Dat, Gregory R. Naumiec Jan 2010

The Development Of Novel Mr Molecular Imaging Agents Towards The Visualization Of Dat, Gregory R. Naumiec

Open Access Dissertations

The facile and definitive diagnosis of disease is paramount in treating patients effectively. The ability to image the body, and more precisely the ability to image the specific site of the ailment, has become a cornerstone in medicine. Currently, most imaging technologies focus on macroscopic physical, physiological, or metabolic changes rather than identifying specific molecular events that are responsible for disease. Magnetic resonance imaging (MRI) is a non-radioactive and high spatial resolution diagnostic technique capable of both anatomical and molecular imaging. Paramagnetic complexes, such as gadolinium, can be used as MRI contrast agents because their unpaired electrons increase the relaxivity …

Go to article

Full-Wave Tomography: Method And Application To The South-East Tibetan Plateau, Zhigang Zhang Jan 2010

Full-Wave Tomography: Method And Application To The South-East Tibetan Plateau, Zhigang Zhang

Open Access Dissertations

The so-called 'finite-frequency' study in seismic tomography was introduced about a decade ago, and has become computationally affordable in recent years. In this thesis, I studied the finite frequency behavior of head waves, and validated the scatter-integral method using numerical simulations of wave propagation in 3D reference models. Moreover, I applied the scattering-integral method to the Tibetan plateau. Head waves provide important information for layered media, such as the Earth. Our numerical study show that head waves have sensitivities not only on the layer interface but also in the lower layer. More importantly, the maximum sensitivity in the lower layer …

Go to article

Regioselective Oxidative Arylation Of N-Acetylindoles And N-Alkylindoles, Shathaverdhan Potavathri Jan 2010

Regioselective Oxidative Arylation Of N-Acetylindoles And N-Alkylindoles, Shathaverdhan Potavathri

Open Access Dissertations

Direct C-H bond arylation holds a significant importance in the synthesis of small biologically active molecular as it eliminates the need for pre-functionalization of either of the coupling partners. The use of these pre-functionalized coupling partners is inherently wasteful and uneconomical in comparison to methods that might directly couple the arenes together through C-H bond activation. This dissertation is mainly focused on the regioselective oxidative arylation of indoles and the synthesis of next-generation inhibitors of botulinum neurotoxin by a direct catalytic cross-coupling strategy. The first manuscript entitled "Oxidant - Controlled Regioselectivity in the Oxidative Arylation of N-Acetylindoles" is focused on …

Go to article

An Improved Plasmid Vector System For Genetic Engineering Of Synechocystis Sp Pcc 6803, Arul Varman Jan 2010

An Improved Plasmid Vector System For Genetic Engineering Of Synechocystis Sp Pcc 6803, Arul Varman

All Theses and Dissertations (ETDs)

No abstract provided.

Go to article

Teaching News Literacy In The Age Of New Media: Why Secondary School Students Should Be Taught To Judge The Credibility Of The News They Consume, Elia Powers Jan 2010

Teaching News Literacy In The Age Of New Media: Why Secondary School Students Should Be Taught To Judge The Credibility Of The News They Consume, Elia Powers

All Theses and Dissertations (ETDs)

This paper involves two of the oldest institutions in America -- schools and the press -- and the preparation of informed citizens in the age of new media. I examine the manner and ways in which news literacy, the use of critical thinking skills to judge the reliability of news reports and news sources, is taught to secondary school students in the United States. It is axiomatic that a vigorous and independent press is critical to our democracy. Yet news literacy has not historically been included in the public school curriculum and continues to be widely absent, despite states vowing …

Go to article

Electromagnetic Tracking For Medical Imaging, Jie Wen Jan 2010

Electromagnetic Tracking For Medical Imaging, Jie Wen

All Theses and Dissertations (ETDs)

This thesis explores the novel use of a wireless electromagnetic: EM) tracking device in a Computed Tomography: CT) environment. The sources of electromagnetic interference inside a Philips Brilliant Big Bore CT scanner are analyzed. A research version of the Calypso wireless tracking system was set up inside the CT suite, and a set of three Beacon transponders was bonded to a plastic fixture. The tracking system was tested under different working parameters including orientation of tracking beacons, the gain level of the frontend amplifier, the distance between the transponders and the sensor array, the rotation speed of the CT gantry, …

Go to article

O Corpo Do Brasil: The Role Of The Brazilian Body In The Art Of Ernesto Neto, Samantha Wilson Jan 2010

O Corpo Do Brasil: The Role Of The Brazilian Body In The Art Of Ernesto Neto, Samantha Wilson

All Theses and Dissertations (ETDs)

No abstract provided.

Go to article

An Image Never Reaching The Perfect, Yuanyuan Wang Jan 2010

An Image Never Reaching The Perfect, Yuanyuan Wang

All Theses and Dissertations (ETDs)

My thesis seeks to take several concrete texts to examine this ΓÇ£new womenΓÇ¥ genealogy in modern Chinese literature, analyze the differences and development of such an image, and argue that because all the new women images in modern Chinese literature are created with the writersΓÇÖ certain purpose, they can never be ideal or perfect. They all have some drawbacks, and we could not even find one till today.

Go to article

How New Is New? Rereading The New Women In Gold Dust Dynasty (Jin Fen Shijia), Yu Zhou Jan 2010

How New Is New? Rereading The New Women In Gold Dust Dynasty (Jin Fen Shijia), Yu Zhou

All Theses and Dissertations (ETDs)

No abstract provided.

Go to article

Blue Notes From Three Songs: Malleable Artifacts As Related To Evolving Cultural Identity, Lou Lucas Jan 2010

Blue Notes From Three Songs: Malleable Artifacts As Related To Evolving Cultural Identity, Lou Lucas

All Theses and Dissertations (ETDs)

A consideration of three State Songs, ΓÇ£My Old Kentucky HomeΓÇ¥ by Stephen Foster, ΓÇ£Carry Me Back to Old VirginnyΓÇ¥ by James A. Bland, and ΓÇ£The Missouri WaltzΓÇ¥ with lyrics by James Royce Shannon. The combination of black dialect and negative stereotypes, with elevation to special status impacting identity, necessitated their alteration. Such change reflects societal response to the Civil Rights Movement, while a pragmatic view suggests these malleable artifacts have functioned, and continue to function, as ΓÇ£blue notes,ΓÇ¥ unsettling elements acting to stimulate discourse, becoming participants in the formation of identity and American cultural change.

Go to article

Pattern Formation And Magnetism In Pulsed Laser-Induced Self-Organized Nanostructures From Single And Bilayer Metallic Films, Hare Krishna Jan 2010

Pattern Formation And Magnetism In Pulsed Laser-Induced Self-Organized Nanostructures From Single And Bilayer Metallic Films, Hare Krishna

All Theses and Dissertations (ETDs)

Self-organization via nanosecond pulsed laser melting of thin metal films is attractive as a reliable and low cost method to create surface metallic nanostructures. The potential applications of these resulting structures are related to their magnetic, optical, plasmonic, and magneto-optical properties, such as in high density magnetic storage, energy harvesting, and sensing. In this dissertation experimental and theoretical mechanisms of nanoscale patterning by dewetting self-organization was explored in nanoscopic thickness single and bilayer metal films. Magnetism in the resulting nanostructures was also explored. Experimental techniques included thin film deposition, laser irradiation, scanning and transmission electron microscopy, atomic force and magnetic …

Go to article

Predictors Of Intercultural Competence Among International Volunteers, Benjamin Lough Jan 2010

Predictors Of Intercultural Competence Among International Volunteers, Benjamin Lough

All Theses and Dissertations (ETDs)

International volunteering and service: IVS) has the potential to promote intercultural competence, or "the ability to communicate effectively and appropriately in intercultural situations based on one's intercultural knowledge, skills, and attitudes": Deardorff, 2008: 33). Although conditions of IVS vary greatly across program models, nearly all claim that volunteering will increase intercultural competence. Contact theory, transformative learning theory, and various stage theories of intercultural learning all suggest, however, that cultural contact will only improve a volunteer's intercultural competence under certain conditions. This dissertation builds on previous scholarship by isolating four characteristics that vary across institutional models, and testing how these variations …

Go to article

Cultural Anxieties And Institutional Regulation: "Specialized" Mental Healthcare And "Immigrant Suffering" In Paris, France, Stéphanie Larchanché Jan 2010

Cultural Anxieties And Institutional Regulation: "Specialized" Mental Healthcare And "Immigrant Suffering" In Paris, France, Stéphanie Larchanché

All Theses and Dissertations (ETDs)

This dissertation looks at "specialized" mental healthcare expertise in France as a lens through which to address the institutional management and representations of cultural difference in France today. By "specialized" mental healthcare centers, I refer structures that provide culturally-sensitive mental health services to immigrants specifically. I identify and explore three contemporary expert approaches: namely, transcultural psychiatry, clinical medical anthropology, and ethnoclinical mediation. By providing a genealogy of specialized mental healthcare institutions, and by construing them as "meta-discursive nodes"--that is, as points of encounter between state, institutional, and individual ideologies--I provide an analysis of the cultural anxieties, contradictions and double-binds that …

Go to article

Enhancing Nonlinear Ultrasonic Methods For Laboratory And Clinical Applications, Christopher Lloyd Jan 2010

Enhancing Nonlinear Ultrasonic Methods For Laboratory And Clinical Applications, Christopher Lloyd

All Theses and Dissertations (ETDs)

This thesis addresses the underlying physics associated with nonlinear ultrasonic field propagation, measurements of the nonlinear properties of materials, and mechanisms contributing to the observed systematic variation of backscattered ultrasonic energy from the heart over the heart cycle. Studies were performed to address the reliability of the methods of measurement used for the quantitative characterization of nonlinear phenomena and to explore the utility of these methods. This thesis examines the measurement of nonlinear acoustic properties of materials using several methods, including the transmission of ultrasound through the material, as well as the backscattered signal from a region of interest within …

Go to article

Exploring Tissue Microstructure In Healthy And Diseased Lung Tissue, Michelle Milne Jan 2010

Exploring Tissue Microstructure In Healthy And Diseased Lung Tissue, Michelle Milne

All Theses and Dissertations (ETDs)

This thesis is divided into two parts. The first part examines diffusion in a number of human lung samples, while the second deals with diffusion in the more simplified environment of a single capillary tube. In the lung study we examine various types of lung samples: healthy and diseased) at a variety of diffusion lengths. Diffusion Magnetic Resonance Imaging: MRI) has been a very useful tool in the study of lungs and lung disease, particularly diffusion MRI using hyperpolarized gases, such as helium or xenon. However, since the polarized gas is difficult to prepare and, once prepared, suffers decay of …

Go to article

Essays On Online Browsing And Purchase, Ciju Nair Jan 2010

Essays On Online Browsing And Purchase, Ciju Nair

All Theses and Dissertations (ETDs)

Essay One: Modeling Online Browsing and Purchase of Airline Tickets Online purchases are increasingly becoming a significant portion of total purchases in most product categories. While prior research in marketing has looked at information search and purchase decisions separately, we use a joint framework to study consumers' online browsing and purchase of airline tickets in a unique dataset of household-level dynamic click stream panel data. We use a three-stage model to study: i) the choice of the first website visited,: ii) the duration of browsing on travel websites before making a purchase: iii) the choice of the website where consumers …

Go to article

Conservation Of The Intracellular Bacterial Community Pathogenic Pathway In Urinary Tract Infection, David Rosen Jan 2010

Conservation Of The Intracellular Bacterial Community Pathogenic Pathway In Urinary Tract Infection, David Rosen

All Theses and Dissertations (ETDs)

Urinary tract infections: UTIs) affect 13 million women annually in the United States. Uropathogenic Escherichia coli: UPEC) is the predominant etiologic agent of UTI; however, several other uropathogens, including Klebsiella pneumoniae, are also significant causative agents. In a murine cystitis model, UPEC utilize a multistep pathogenic pathway in which they invade and form intracellular bacterial communities: IBCs) within bladder facet cells. Type 1 pili, adhesive fimbriae, are necessary for UPEC binding and invasion of urothelial cells and formation of IBCs. UPEC ultimately disperse from the IBC, many with filamentous morphology, and proceed to infect other host urothelial cells. This work …

Go to article

The Mechanisms And Roles Of Neural Feedback Loops For Visual Processing, Debajit Saha Jan 2010

The Mechanisms And Roles Of Neural Feedback Loops For Visual Processing, Debajit Saha

All Theses and Dissertations (ETDs)

Feedback pathways are widely present in various sensory systems transmitting time-delayed and partly-processed information from higher to lower visual centers. Although feedback loops are abundant in visual systems, investigations focusing on the mechanisms and roles of feedback in terms of micro-circuitry and system dynamics have been largely ignored. Here, we investigate the cellular, synaptic and circuit level properties of a cholinergic isthmic neuron: Ipc) to understand the role of isthmotectal feedback loop in visual processing of red-ear turtles, Trachemys scripta elegans. Turtle isthmotectal complex contains two distinct nuclei, Ipc and Imc, which interact exclusively with the optic tectum, but are …

Go to article

The Ethics Of Forcible Democratization, David Speetzen Jan 2010

The Ethics Of Forcible Democratization, David Speetzen

All Theses and Dissertations (ETDs)

Recent wars have led many to believe that the promotion of democracy cannot justify foreign intervention, but this is rash. A government's right to non-intervention should hinge on whether it adequately: 1) protects its subjects' human rights and: 2) represents their collective political will. I argue that when and where the international legal system's ability to enforce human rights matures and the social conditions for better representation emerge, the standards for adequate protection and representation should rise. Since democracy significantly augments both functions of government, eventually the right to non-intervention should depend on maintaining democratic institutions. Failure to do so …

Go to article

Implicit And Explicit Racial Attitudes: Moderation Of Racial Typicality Evaluations, Elena Stepanova Jan 2010

Implicit And Explicit Racial Attitudes: Moderation Of Racial Typicality Evaluations, Elena Stepanova

All Theses and Dissertations (ETDs)

Previous research has shown that racial images representing more typical Afrocentric phenotypic characteristics result in more negative evaluations, whether assessed by explicit or implicit attitudes measures. However, the factors that define and moderate the perception of racial typicality have not been sufficiently explored. The current research investigated additive and interactive influences of skin tone and facial physiognomy on racial typicality evaluations, as well as the degree to which those effects were moderated by explicit and implicit racial attitudes, ethnicity of participants, and availability of cognitive resources. Using a 6-point scale ranging from very African American to very Caucasian, participants: N …

Go to article

Adaptation Of Pyflag To Efficient Analysis Of Seized Computer Data Storage, Aleksander Byrski, Wojciech Stryjewski, Bartłomiej Czechowicz Jan 2010

Adaptation Of Pyflag To Efficient Analysis Of Seized Computer Data Storage, Aleksander Byrski, Wojciech Stryjewski, Bartłomiej Czechowicz

Journal of Digital Forensics, Security and Law

Based on existing software aimed at investigation support in the analysis of computer data storage seized during investigation (PyFlag), an extension is proposed involving the introduction of dedicated components for data identification and filtering. Hash codes for popular software contained in NIST/NSRL database are considered in order to avoid unwanted files while searching and to classify them into several categories. The extension allows for further analysis, e.g. using artificial intelligence methods. The considerations are illustrated by the overview of the system's design.

Go to article

Computer Forensic Functions Testing: Media Preparation, Write Protection And Verification, Yinghua Guo, Jill Slay Jan 2010

Computer Forensic Functions Testing: Media Preparation, Write Protection And Verification, Yinghua Guo, Jill Slay

Journal of Digital Forensics, Security and Law

The growth in the computer forensic field has created a demand for new software (or increased functionality to existing software) and a means to verify that this software is truly forensic i.e. capable of meeting the requirements of the trier of fact. In this work, we review our previous work---a function oriented testing framework for validation and verification of computer forensic tools. This framework consists of three parts: function mapping, requirements specification and reference set development. Through function mapping, we give a scientific and systemized description of the fundamentals of computer forensic discipline, i.e. what functions are needed in the …

Go to article

Digital Records Forensics: A New Science And Academic Program For Forensic Readiness, Luciana Duranti, Barbara Endicott-Popovsky Jan 2010

Digital Records Forensics: A New Science And Academic Program For Forensic Readiness, Luciana Duranti, Barbara Endicott-Popovsky

Journal of Digital Forensics, Security and Law

This paper introduces the Digital Records Forensics project, a research endeavour located at the University of British Columbia in Canada and aimed at the development of a new science resulting from the integration of digital forensics with diplomatics, archival science, information science and the law of evidence, and of an interdisciplinary graduate degree program, called Digital Records Forensics Studies, directed to professionals working for law enforcement agencies, legal firms, courts, and all kind of institutions and business that require their services. The program anticipates the need for organizations to become “forensically ready,” defined by John Tan as “maximizing the ability …

Go to article

Solid State Drives: The Beginning Of The End For Current Practice In Digital Forensic Recovery?, Graeme B. Bell, Richard Boddington Jan 2010

Solid State Drives: The Beginning Of The End For Current Practice In Digital Forensic Recovery?, Graeme B. Bell, Richard Boddington

Journal of Digital Forensics, Security and Law

Digital evidence is increasingly relied upon in computer forensic examinations and legal proceedings in the modern courtroom. The primary storage technology used for digital information has remained constant over the last two decades, in the form of the magnetic disc. Consequently, investigative, forensic, and judicial procedures are well-established for magnetic disc storage devices (Carrier, 2005). However, a paradigm shift has taken place in technology storage and complex, transistor-based devices for primary storage are now increasingly common. Most people are aware of the transition from portable magnetic floppy discs to portable USB transistor flash devices, yet the transition from magnetic hard …

Go to article

Forensic Analysis Of The Windows 7 Registry, Khawla A. Alghafli, Andrew Jones, Thomas A. Martin Jan 2010

Forensic Analysis Of The Windows 7 Registry, Khawla A. Alghafli, Andrew Jones, Thomas A. Martin

Journal of Digital Forensics, Security and Law

The recovery of digital evidence of crimes from storage media is an increasingly time consuming process as the capacity of the storage media is in a state of constant growth. It is also a difficult and complex task for the forensic investigator to analyse all of the locations in the storage media. These two factors, when combined, may result in a delay in bringing a case to court. The concept of this paper is to start the initial forensic analysis of the storage media in locations that are most likely to contain digital evidence, the Windows Registry. Consequently, the forensic …

Go to article

First Prev Next Last