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2007

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Explaining Compliance With International Agreements Against The Trafficking Of Children, Allison A. Bannerman '07 Jan 2007

Explaining Compliance With International Agreements Against The Trafficking Of Children, Allison A. Bannerman '07

Res Publica - Journal of Undergraduate Research

The sexual exploitation of children is detrimental to the physical and emotional health and development of the children and undermines the development and growth of nations. Since 1989 the international community has taken serious legislative steps to attempt to eliminate child sex trafficking. However, despite nearly universal ratification of international conventions on the topic, the sexual exploitation of children continues. The literature that addresses regime compliance suggests two general explanations for the lack of follow-through among signatory countries: a lack of capacity (both political and economic) and cultural proximity. This paper will examine the validity of each of these categories …

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Bipolar Disorder, Disclosure, And Their Effects On Employment Opportunities, Melissa B. Finch '07 Jan 2007

Bipolar Disorder, Disclosure, And Their Effects On Employment Opportunities, Melissa B. Finch '07

Honors Projects

People with psychological disorders often experience stigma and discrimination, which can impact their ability to gain and maintain employment (Goldberg, Killeen, & O'Day, 2005). The purpose of this study was to examine the impact of disclosure of a severe mental disorder (bipolar disorder) on employers' reactions. In addition, the study assessed the impact of diversity education on employers hiring recommendations for persons with severe mental disabilities. Participants listened to an interview of a student job applicant in one of three conditions (no disclosure, implicit disclosure, or explicit disclosure.) They rated the applicant on personal characteristics and likeability, as well as …

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Reducing Hiv Stigma: A Common Group Identity Perspective, Heather Deutsch '07 Jan 2007

Reducing Hiv Stigma: A Common Group Identity Perspective, Heather Deutsch '07

Honors Projects

The HIV/AIDS epidemic affects many individuals worldwide. Coupled with this epidemic is stigma levied against infected individuals. HIV stigma involves feelings of repulsion, discomfort, blaming, and sanctions. I attempted to combat HIV stigma by targeting emotional, motivational, and behavioral underpinnings in an intervention video. In this video, I manipulated: 1) whether the intervention speaker shared a group membership (IWU affiliation) with the audience and 2) the speaker's HIV status. I hypothesized that, when the speaker was affiliated with IWU and was HIV-positive, stigma would be reduced. Seventy-one lWU students watched the intervention video, and then I assessed participants' HIV-related implicit …

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Reactions To Ostracism And Their Predictors, Kelly J. Sanderson '07 Jan 2007

Reactions To Ostracism And Their Predictors, Kelly J. Sanderson '07

Honors Projects

This study was conducted to examine how individual differences in personality predict variance in reactions to ostracism, and to explore the effects of re-inclusion on ostracism reactions. Participants completed five personality measures before the ostracism was delivered in a chat-room paradigm. The chat-room consisted of phases during which participants were included, excluded, and re-included in the discussion, and enjoyment and participation were measured after each chat-room phase. Enjoyment and participation decreased during exclusion and increased during re-inclusion. Throughout all phases of the chat-room, enjoyment and participation were positively correlated with social competence and negatively correlated with loneliness and social isolation. …

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Social Ostracism And The Effect On Electroencephalogram Waves, Genevieve Nehrt '07 Jan 2007

Social Ostracism And The Effect On Electroencephalogram Waves, Genevieve Nehrt '07

Honors Projects

Twenty one female Illinois Wesleyan students participated in an experiment examining changes in brain activity following social ostracism in a chat-room environment. More specifically theta EEG activity was recorded from three frontal areas (the Fz, F3, and F4 sites) and theta power and frequency were compared during three phases: inclusion, exclusion, and re-inclusion. The social ostracism paradigm was successful in creating a feeling of exclusion in participants. Participants had a lower level of interest, participation, and enjoyment during the exclusion phase than the inclusion and re-inclusion phases. Participants also typed fewer lines during the exclusion phase than in the other …

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Counterfactual Thinking And The False Belief Task: A Developmental Study, Frederique Arreckx Jan 2007

Counterfactual Thinking And The False Belief Task: A Developmental Study, Frederique Arreckx

School of Psychology Theses

The main aim of this thesis was to investigate children's reasoning abilities, especially their ability to solve counterfactual tasks. This thesis studied counterfactual thinking as an independent ability but also in relation to both types of the false belief tasks that measure theory of mind and contrary-to-fact syllogisms. Four experiments were conducted with typically developing children between the ages of 3 to 5. The first experiment studied the difference between affirmative and negative counterfactual questions and found that the former was easier than the latter. The second experiment replicated these results and investigated the link between counterfactual thinking and the …

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Dynamics And Divergences In Electromagnetic Backgrounds, Paul Jameson Jan 2007

Dynamics And Divergences In Electromagnetic Backgrounds, Paul Jameson

School of Engineering, Computing and Mathematics Theses

This thesis investigates the behaviour of a charge which is subjected to either an electromagnetic background created by a laser or a background which is hidden behind the resolution limitations of accelerator experiments. When a charge interacts with an intense laser beam its dynamics changes. The resulting trajectory of a non-relativistic particle is solved in this thesis without having to employ the dipole approximation. Many fundamental features of this trajectory are analysed including the drift velocity and the appearance of higher harmonic oscillations. In contrast, the interaction between a charge and an unobserved electromagnetic background leads to the infrared catastrophe. …

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The Compact, Issue 14, May, 2007., Dit: Students' Union Jan 2007

The Compact, Issue 14, May, 2007., Dit: Students' Union

DIT Student Union

No abstract provided.

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Reinventing A Level 7 Programme In Electrical Engineering And Greatly Improving On Student Retention, Eugene Coyle, Mike Murphy, Frank Costello, Leslie Shoemaker Jan 2007

Reinventing A Level 7 Programme In Electrical Engineering And Greatly Improving On Student Retention, Eugene Coyle, Mike Murphy, Frank Costello, Leslie Shoemaker

Books/Book chapters

Following the successful implementation over a number of decades of a three-year Diploma in Electrical and Control Engineering at Technological University Dublin, the programme entered a period of extreme difficulty and uncertainty in the late nineteen ninetees and early years of the new millennium. As with many such engineering programmes, student numbers seeking to enter began to diminish. Furthermore, engagement and retention of students who had enrolled on the programme became evermore challenging, necessitating some radical moves in the formation and operation of the programme and in putting additional student support mechanisms in place. The situation hit rock bottom between …

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Growing Research In A Traditionally Teaching-Oriented College, Mike Murphy, Michael Dyrenfurth Jan 2007

Growing Research In A Traditionally Teaching-Oriented College, Mike Murphy, Michael Dyrenfurth

Conference papers

There is increasing pressure on universities to contribute to ‘the knowledge society’ by increasing the level of research activity and output within the university. This is particularly true in the sciences, engineering and technology. This increased pressure applies equally to traditionally teaching-oriented colleges (TTOC), although not at the same scale as research-intensive universities. For the TTOC, given the primacy of teaching, this paper discusses the nexus between teaching and research and the question ‘why do research?’ is addressed within the overarching goal of embedding a research culture within the college. Initiatives to develop and grow sustainable research activity in traditionally …

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Engineering Science As Opposed To Natural Science, Eugene Coyle, Mike Murphy, William Grimson Jan 2007

Engineering Science As Opposed To Natural Science, Eugene Coyle, Mike Murphy, William Grimson

Presentations

No abstract provided.

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Brain Integrity And Cerebral Atrophy In Vietnam Combat Veterans With And Without Posttraumatic Stress Disorder, Bruce L. Brown, Dawson W. Hedges, G. William Thatcher, Pamela J. Bennett, Shabnam Sood, David Paulson, Sarah Creem-Regehr, Steven Allen, Jamie Johnson, Brooke Froelich, Erin D. Bigler Jan 2007

Brain Integrity And Cerebral Atrophy In Vietnam Combat Veterans With And Without Posttraumatic Stress Disorder, Bruce L. Brown, Dawson W. Hedges, G. William Thatcher, Pamela J. Bennett, Shabnam Sood, David Paulson, Sarah Creem-Regehr, Steven Allen, Jamie Johnson, Brooke Froelich, Erin D. Bigler

Faculty Publications

Posttraumatic stress disorder (PTSD) is associated with decreased hippocampal volume, but the relationship between trauma and brain morphology in the absence of PTSD is less clear. In this study, measures of brain integrity were determined by estimating gray and white matter regional brain volumes using structural magnetic resonance imaging in six patients with PTSD and in five controls with comparable trauma exposure but without clinical evidence of PTSD. The only statistically significant volume difference between groups was observed multivariately in the white matter of the right temporal lobe (superior temporal gyrus, fusiform gyrus, parahippocampal gyrus, white-matter stem, middle temporal gyrus, …

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A Novel Wideband Semi-Planar Miniaturized Antenna, Giuseppe Ruvio, Max Ammann Jan 2007

A Novel Wideband Semi-Planar Miniaturized Antenna, Giuseppe Ruvio, Max Ammann

Articles

A semi-planar miniaturized antenna which operates over the FCC allocated UWB spectrum is presented. The small antenna comprises a folded conducting element connected to a printed section. Several solutions are introduced which create different current paths increasing the effective dimensions of the antenna. The antenna is examined for the stand-alone case and for the antenna mounted in various locations on a larger handset-type groundplane. The impedance and radiation characteristics show a relative independence of the groundplane size and the antenna location on it. The proposed antenna is a valuable candidate for handset applications due to its compactness. The proposed antenna …

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Macrobending Fiber Loss Filter, Ratiometric Wavelength Measurement And Application, Qian Wang, Ginu Rajan, Gerald Farrell, Pengfei Wang, Yuliya Semenova, Thomas Freir Jan 2007

Macrobending Fiber Loss Filter, Ratiometric Wavelength Measurement And Application, Qian Wang, Ginu Rajan, Gerald Farrell, Pengfei Wang, Yuliya Semenova, Thomas Freir

Articles

A macrobending standard single-mode fibre (SMF28) is optimized as an edge filter, with the optimal bending radius and length determined according to the bend loss and polarization sensitivity of the bending fibre. An all-fibre ratiometric wavelength system is built and calibrated. The system's accuracy and resolution is discussed with the influence of noise of input signal and photodetectors. Finally, the ratiometric system is employed for the demodulation of FBG strain sensing.

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Quantum Dot Energy Relaxation Mediated By Plasmon Emission In Doped Covalent Semiconductor Heterostructures, A. V. Fedorov, Anna Baranov, I. D. Rukhlenko, T. S. Perova, Kevin Berwick Jan 2007

Quantum Dot Energy Relaxation Mediated By Plasmon Emission In Doped Covalent Semiconductor Heterostructures, A. V. Fedorov, Anna Baranov, I. D. Rukhlenko, T. S. Perova, Kevin Berwick

Articles

The interaction between interface plasmons within a doped substrate and quantum dot electrons or holes has been theoretically studied in double heterostructures based on covalent semiconductors. The interface plasmon modes, the corresponding dispersion relationship, and the intraband carrier relaxation rate in quantum dots are reported. We find the critical points in the interface plasmon density of states for multilayered structures results in enhanced quantum dot intraband carrier relaxation when compared to that for a single heterostructure. A detailed discussion is made of the relaxation rate and the spectral position dependencies on the quantum dot layer thickness as well as on …

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Design Of Compact Multi-Band Ebg Structures, Xiulong Bao, Max Ammann Jan 2007

Design Of Compact Multi-Band Ebg Structures, Xiulong Bao, Max Ammann

Conference papers

Several novel compact multiple-band high-impedance surface EBG structures are presented. By utilizing four S-shape corrugated arms or spiral arms connected to the edge of a small square patch to increase the inductance, the resonant frequency of the EBG structure can be significantly reduced. In order to broaden the width of the stopband and adjust the ratio of the centre frequencies for multi-band EBG a log periodic distance between the S-shape strips is implemented. The effects of the parameters of the EBG structure on the width of stopbands are discussed in detail. The results show that the proposed novel EBG structure …

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Enhancement Of Maximum Time Delay In One Fiber Segment Slow Light Systems Based On Stimulated Brillouin Scattering, Ronny Henker, Thomas Schneider, Markus Junker, Kai-Uwe Lauterbach, Max Ammann, Andreas Schwarzbacher Jan 2007

Enhancement Of Maximum Time Delay In One Fiber Segment Slow Light Systems Based On Stimulated Brillouin Scattering, Ronny Henker, Thomas Schneider, Markus Junker, Kai-Uwe Lauterbach, Max Ammann, Andreas Schwarzbacher

Conference papers

An effective method to enhance the time delay in SBS-based slow-light systems by decoupling the delay from the Brillouin gain is shown. A drastic improvement of the time delay in one fiber segment was achieved.

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Investigation Of Fast Light In Long Optical Fibers Based On Stimulated Brillouin Scattering, Kai-Uwe Lauterback, Thomas Schneider, Ronny Henker, Marcus Junker, Max Ammann, Andreas Schwarzbacher Jan 2007

Investigation Of Fast Light In Long Optical Fibers Based On Stimulated Brillouin Scattering, Kai-Uwe Lauterback, Thomas Schneider, Ronny Henker, Marcus Junker, Max Ammann, Andreas Schwarzbacher

Conference papers

A simple method to generate a negative time delay in SBS-based fast-light systems using Brillouin gain and loss is shown. We achieved a maximum negative time delay of 32.4 ns in one long fiber segment.

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Investigation On Proximity-Coupled Microstrip Integrated Pv Antenna, Maria Roo Ons, S. Shynu, Max Ammann, Sarah Mccormack, Brian Norton Jan 2007

Investigation On Proximity-Coupled Microstrip Integrated Pv Antenna, Maria Roo Ons, S. Shynu, Max Ammann, Sarah Mccormack, Brian Norton

Conference papers

The use of polycrystalline silicon solar cells (156 times156 mm) as a groundplane for a proximity-coupled microstrip square patch antenna (30 times 30 mm) is investigated. Four different models that arise from the different possible positions of the cell with respect to patch, were simulated, fabricated and compared to an ideal PEC ground plane antenna of the same size. It was found that the use of the solar cell as ground plane is feasible, yielding similar impedance bandwidth (around 4%, 3.5% for the PEC) with reasonable gain. The feasibility of using poly-crystalline solar cells as a ground plane, instead of …

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Printed Band-Rejection Uwb Antenna With H-Shaped Slot, Xiulong Bao, Max Ammann Jan 2007

Printed Band-Rejection Uwb Antenna With H-Shaped Slot, Xiulong Bao, Max Ammann

Conference papers

The development of the high data rate wireless communication systems, has placed significant demands on antenna designers, in particular, the requirement for smaller elements with broader bandwidths. In this paper, a novel UWB antenna with notch-band frequency is studied. Effects of the various parameters for antenna performances are also discussed. An optimized compact UWB antenna with notch-frequency function is fabricated and experimentally examined. The measured results show the proposed UWB antenna can achieve a return loss greater than 10 db over an ultrawide bandwidth, of 9.8 GHz, from 2.97 GHz to 12.77 GHz with a tunable notch-frequency band of 5.15 …

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Experiences With Virtual Learning Environments In Control Engineering Education, Aidan O'Dwyer Jan 2007

Experiences With Virtual Learning Environments In Control Engineering Education, Aidan O'Dwyer

Conference papers

The twin pressures of the need for students to learn a wider variety of concepts, ideally in a self-learning mode, and the reduction in class contact time has led to the use of increased levels of information technology in control engineering education. This paper reports on, reflects on, and evaluates the author’s use of virtual laboratories (computer based laboratories available on the internet) in control engineering modules at DIT Kevin St. The use of the virtual laboratories helps in the ongoing evolution of the teaching approach from a traditional didactic lecture and laboratory course to a more learner-centred approach. The …

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Stability Analysis And Control Synthesis Of Affine Fuzzy Systems, Ruiyao Gao, Aidan O'Dwyer Jan 2007

Stability Analysis And Control Synthesis Of Affine Fuzzy Systems, Ruiyao Gao, Aidan O'Dwyer

Conference papers

This paper presents an approach to stability analysis and control synthesis of affine fuzzy systems. The analysis is based on quadratic Lyapunov functions. The approach considers the nonlinear offset terms in affine fuzzy systems as non-vanishing perturbations added to the corresponding nominal linear blending systems. The affine fuzzy system is bounded by an ultimate limit if the corresponding linear blending system is exponentially stable. A state feedback controller with an extra term is designed with guaranteed global stability. The ultimate bounds are determined for both the open loop system and the compensated system.

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Using Controller Tuning Formulae To Improve Performance, Aidan O'Dwyer Jan 2007

Using Controller Tuning Formulae To Improve Performance, Aidan O'Dwyer

Conference papers

The proportional integral derivative (PID) controller is the most dominant form of automatic controller in industrial use today. With this device, it is necessary to adjust the controller parameters according to the nature of the process. Thus, for effective control of a HVDC system, for example, specific values need to be chosen for the P, I and D parameters, which will be different for the values required to control, for example, an induction motor drive. This tailoring of controller to process is known as controller tuning. Controller tuning is easily and effectively performed using tuning rules (i.e. formulae for controller …

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Academic Change In Higher Education In Europe, Kevin Kelly, Mike Murphy Jan 2007

Academic Change In Higher Education In Europe, Kevin Kelly, Mike Murphy

Conference papers

This paper analyses academic change in higher education internationally but mainly in Europe. It examines one College in Ireland as it faces major change and examines whether best practice change that has been successful elsewhere might be appropriate in this particular setting, with it’s own culture and history. Research is ongoing, using qualitative inquiry and fourth generation evaluation which seeks to address the concerns and issues of stakeholders. It is an illuminative evaluation project that seeks to allow senior management in the College see what is happening elsewhere and evaluate whether such methods might be appropriate in their own college. …

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Diffusion And Fractional Diffusion Based Models For Multiple Light Scattering And Image Analysis, Jonathan Blackledge Jan 2007

Diffusion And Fractional Diffusion Based Models For Multiple Light Scattering And Image Analysis, Jonathan Blackledge

Articles

This paper considers a fractional light diffusion model as an approach to characterizing the case when intermediate scattering processes are present, i.e. the scattering regime is neither strong nor weak. In order to introduce the basis for this approach, we revisit the elements of formal scattering theory and the classical diffusion problem in terms of solutions to the inhomogeneous wave and diffusion equations respectively. We then address the significance of these equations in terms of a random walk model for multiple scattering. This leads to the proposition of a fractional diffusion equation for modelling intermediate strength scattering that is based …

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Optical Performance Of Non-Blocking 4x4 Optical Switch: Simulation And Experiment, V. Alex, A. Dubtsov, Yuri Panarin, T. Wilkinson Jan 2007

Optical Performance Of Non-Blocking 4x4 Optical Switch: Simulation And Experiment, V. Alex, A. Dubtsov, Yuri Panarin, T. Wilkinson

Articles

A prototype of pure non-blocking 4x4 optical LC switch was designed and built. This switch is based on conventional LCD technology, where the each pixel controlled the polarization state of the light beam. An addressing algorithm was described. The optical performance of the switch, such as cross-talk and insertion loss, was simulated and experimentally studied. The suggested approach offers several advantages over the conventional cross-point architecture such as: cost; complexity; size; adjustment; and optical performance.

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Engineering Science As Opposed To Natural And Applied Science, Eugene Coyle, Mike Murphy, William Grimson Jan 2007

Engineering Science As Opposed To Natural And Applied Science, Eugene Coyle, Mike Murphy, William Grimson

Books/Book chapters

In exploring the epistemology of engineering science we propose a model of engineering. This model incorporates the goals of engineering, the approach to engineering (also called the engineering method) and the role of experience in engi-neering. The basis for understanding the nature of engineering science will be ex-plored, and will be contrasted with natural science. To begin, a large-scale engi-neering project that was successfully completed in Ireland many years ago is dis-cussed - specifically, the development of a megalithic passage tomb as an exemplar of the engineering method in structural design, project management and aesthetics. This exemplar firmly demonstrates that …

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Internal Audit Sourcing Arrangement And The External Auditor's Reliance Decision, Steven M. Glover, Douglas F. Prawitt, David A. Wood Jan 2007

Internal Audit Sourcing Arrangement And The External Auditor's Reliance Decision, Steven M. Glover, Douglas F. Prawitt, David A. Wood

Faculty Publications

This paper examines the effects of internal audit sourcing arrangement on the external auditor’s reliance decision in the presence of different levels of inherent risk and task subjectivity. We posit that external auditors will rely more on outsourced than in-house internal audit functions (IAFs) and that this difference will be more pronounced when inherent risk is high or when the work performed by internal auditors relates to a subjective task. Participants in the study were 127 external auditors from a Big 4 firm who completed an experimental case in which we manipulated internal audit sourcing, inherent risk, and task subjectivity. …

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Will Legislation To Encourage Premarital Education Strengthen Marriage And Reduce Divorce?, Alan J. Hawkins Jan 2007

Will Legislation To Encourage Premarital Education Strengthen Marriage And Reduce Divorce?, Alan J. Hawkins

Faculty Publications

Many legislators are wondering whether there is a constructive role that government can play to strengthen marriages and reduce divorces. A handful of states have passed legislation providing incentives for couples to participate in formal premarital education. The purpose of this article is to examine the research that can help answer the question whether legislation to promote premarital education can strengthen marriages and reduce the divorce rate. Of course, there are numerous legal and policy issues related to marriage and divorce being discussed these days. The focus of this article however, is only on one. In the end, I conclude …

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Engineering - An Inherently Philosophical Enterprise, William Grimson Jan 2007

Engineering - An Inherently Philosophical Enterprise, William Grimson

Books/Book chapters

No abstract provided.

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