Digital Commons Network^™

Contactless Measurement Of Angular Velocity Using Circularly Polarized Antennas, Vit Sipal, Adam Narbudowicz, Max Ammann

Articles

An innovative method to measure the angular velocity using circularly polarized antennas is proposed. Due to the properties of circular polarization, the angular velocity is frequency modulated (FM) on a wireless carrier. This enables a low-cost precise continuous measurement of angular velocity using a standard FM demodulator. The hardware can be easily adapted for both high and low angular velocity values. The precise alignment angle between the antennas can be determined if the initial antenna orientation is known. The angular error is shown to be

Developing A New Urban Quarter At Grangegorman, Dublin: The Role Of Planning In Its Successful Delivery, Terry Prendergast

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This paper discussed the role of urban planning in achieving successful urban regeneration. It focuses on a specific regeneration project in Dublin’s inner city, the Grangegorman development, which relocates, on a phased basis, the Technological University Dublin’s c.40 buildings on dispersed sites within Dublin City to a single 29 hectare site. The development also provides health facilities for the Health Service Executive, in addition to community and recreational uses and commercial development. Urban planning has played a critical role in the delivery of the project and in securing Government support and funding. This paper describes the importance of project vision, …

Impact Of Hub Location On The Performance Of Wireless Body Area Networks For Fitness Applications, Vit Sipal, Domenico Gaetano, Patrick Mcevoy, Max Ammann

Articles

This letter compares the propagation properties of Wireless Body Area Networks for three different locations (head, foot and waist) of the hub/internet gateway on the human body. The wireless channels between the hubs and four nodes (chest, back, and upper arms) are measured on a female and a male subject performing push-ups and squats. A framework using spider plots is used for cumulative performance description. The results show that the best overall performance is for hub located on the left temple and the worst overall performance is achieved for a hub on the waist. These results are expected to stimulate …

Diffractive Optical Elements With A Large Angle Of Operation Recorded In Acrylamide Based Photopolymer On Flexible Substrates, Hoda Akbari, Izabela Naydenova, Lina Persechini, Sean Garner, Pat Cimo, Suzanne Martin

Articles

A holographic device characterised by a large angular range of operation is under development. The aim of this study is to increase the angular working range of the diffractive lens by stacking three layers of high efficiency optical elements on top of each other so that light is collected (and focussed) from a broader range of angles. The angular range of each individual lens element is important, and work has already been done in an acrylamide-based photosensitive polymer to broaden the angular range of individual elements using holographic recording at a low spatial frequency.This paper reports new results on the …

Antimicrobial Properties Of Nano-Silver: A Cautionary Approach To Ionic Interference, Kate Sheehy, Alan Casey, Anna Murphy, Gordon Chambers

Articles

Hypothesis: Metallic nanoparticles such as nano-silver have found many applications as alternative antimicrobials in recent years. However methods for determining their proposed antimicrobial activity have received little attention to date. The disk diffusion assay is commonly used as a demonstration of antimicrobial properties and is a regular feature in synthetic nanoparticle papers. The aim of this study was to assess its effectiveness in demonstrating the ‘‘nanoparticle specific’’ antimicrobial properties in the absence of ionic contributions from unreacted reducing agents and or impurities. Experiments: The disk diffusion assay was carried out on a range of silver nanoparticles, both in-house synthesised and …

Process Simulation Of Biomass Gasification Integrated With A Solid Oxide Fuel Cell Stack, Wayne Doherty, Anthony Reynolds, David Kennedy

Articles

Biomass gasification-solid oxide fuel cell (BG-SOFC) combined heat and power (CHP) systems are of major interest in the context of climate change mitigation, energy security and increasing energy efficiency. Aspen Plus is employed to simulate various BG-SOFC CHP systems. The aim of the research work is to investigate the technical feasibility of these systems and to study the influence of important operating parameters and examine integration options. Systems based on dual fluidised bed steam gasification and tubular SOFC technologies are modelled. The cathode recycle and electric heater integration options are not attractive in comparison to the base case anode recycle …

Surface Enhanced Raman Scattering With Gold Nanoparticles: Effect Of Particle Shape, Furong Tian, Franck Bonnier, Alan Casey, Anne Shanahan, Hugh Byrne

Articles

The dependence of the Surface Enhanced Raman Scattering (SERS) by gold nanoparticles on their shape is examined using the organic dye, rhodamine 6G (R6G) as probe molecule. SERS has been explored extensively for applications in sensing and imaging, but the design and optimisation of efficient substrates is still challenging. In order to understand and optimise the SERS process in nanoparticles, gold nanospheres and their aggregates, nanotriangles, and nanostars of similar dimensions were synthesised and characterised according to their average size, zeta potential and UV/visible absorption. SERS from R6G was negligible for unaggregated nanospheres at 532 nm, close to the maximum …

Competitive Evaluation Of Data Mining Algorithms For Use In Cassification Of Leukocyte Subtypes With Raman Microspectroscopy, Adrian Maguire, I. Vega-Carrascal, Jane Bryant, Lisa White, Orla Howe, Fiona Lyng, Aidan Meade

Articles

Raman microspectroscopy has been investigated for some time for use in label-free cell sorting devices. These approaches require coupling of the Raman spectrometer to complex data mining algorithms for identification of cellular subtypes such as the leukocyte subpopulations of lymphocytes and monocytes. In this study, three distinct multivariate classification approaches, (PCA-LDA, SVMs and Random Forests) are developed and tested on their ability to classify the cellular subtype in extracted peripheral blood mononuclear cells (T-cell lymphocytes from myeloid cells), and are evaluated in terms of their respective classification performance. A strategy for optimisation of each of the classification algorithm is presented …

Numerical Simulations Of In Vitro Nanoparticle Toxicity – The Case Of Poly(Amido Amine) Dendrimers., Marcus Maher, Pratap Naha, Sourav Prasanna Mukherjee, Hugh Byrne

Articles

A phenomenological rate equation model is constructed to numerically simulate nanoparticle uptake and subsequent cellular response. Polyamidoamine dendrimers (generations 4-6) are modelled and the temporal evolution of the intracellular cascade of; increased levels of reactive oxygen species, intracellular antioxidant species, caspase activation, mitochondrial membrane potential decay, tumour necrosis factor and interleukin generation is simulated, based on experimental observations.

The dose and generation dependence of several of these response factors are seen to well represent experimental observations at a range of time points. The model indicates that variations between responses of different cell-lines, including murine macrophages, human keratinocytes and colon cells, …

Trial Court Budgets, The Enforcer's Dilemma, And The Rule Of Law, Scott Baker, Anup Malani

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No abstract provided.

South Africa’S History Of Struggle And Liberation, Myra Ann Houser

Articles

Clive Glaser’s The ANC Youth League, Colin Bundy’s Govan Mbeki, and Saul Dubow’s South Africa’s Struggle for Human Rights together contribute to Ohio University Press’ new series, Ohio Short Histories of Africa. The three works fit within the larger set of eight brief monographs, written by eminent scholars in a simple and publicly digestible format. The series provides an entry point for new scholars and the general public to familiarize themselves with contemporary histories in a format that is short and easy to read. At the same time, all three works have many challenges to offer more established …

Raman Microspectroscopy For The Early Detection Of Pre-Malignant Changes In Cervical Tissue, Nosheen Rashid, Haq Nawaz, Kelvin W. Poon, Franck Bonnier, Salih Bakhiet, Cara Martin, John O'Leary, Hugh Byrne, Fiona Lyng

Articles

Cervical cancer is the third most common cancer affecting women worldwide. The mortality associated with cervical cancer can, however, be significantly reduced if the disease is detected at the pre-malignant stage. The aim of this study was to evaluate the potential of Raman microspectroscopy for elucidation of the biochemical changes associated with the pre-malignant stages of cervical cancer. Formalin fixed paraffin preserved tissue sections from cervical biopsies classified as negative for intraepithelial lesion and malignancy (NILM), low grade squamous intraepithelial lesion (LSIL) or high grade squamous intraepithelial lesion (HSIL) were analysed by Raman spectral mapping. Raman mapping, with K-Means Cluster …

Loving V. Virginia As A Civil Rights Decision, Dorothy Roberts

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No abstract provided.

Measuring Political Brand Equity In Ireland', Ewan Mcdonald, Roger Sherlock, John Hogan

Articles

This article will apply cognitive mapping techniques to understand the manner in which political brand equity is formed, and how it differs, across the four largest Irish political parties, from the perspective of citizens. It assesses the fundamental aspects of branding and brand equity in the marketing and political marketing literatures. Primary data were generated in spring 2012 through the participation of 232 citizens in the political brand elicitation stage and a further 75 citizens were involved in creating cognitive maps of brand equity. From the mapping process, we see that Irish political party brands are plagued by a number …

The Burden Of Historical Representation: The Case Of/For Indigenous Film, Jeremy Stoddard, Alan Marcus, David Hicks

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Expanding The Role Of Homework Assignments, Henry Etlinger

Articles

Homework offers instructors opportunities to help student develop soft skills. With a little bit of work, we can expand on traditional uses for homework to include opportunities for students to reflect on exams or to evaluate both their own contributions as well as those of other team members on group projects.

Case Study Two: Jewish Time Jump: New York, Owen Gottlieb

Articles

Gottlieb presents an early case study of his mobile augmented reality game Jewish Time Jump: New York design on the ARIS platform for the iPhone and iPad (iOS). The game is set on-location in Washington Square Park in New York city. Players in 5th-7th grade take on the role of time-traveling reporters, landing on site on the eve of the Uprising of 20,000, the largest women-led strike in U.S. History. Based on their GPS location they receive media from over 100 years in the past, interactive with digital characters as they work to gather a story for the fictional Jewish …

The Negotiated Structural Constitution, Aziz Huq

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No abstract provided.

Peer Teaching In The Food Chemistry Laboratory: Student-Produced Experiments, Peer And Audio Feedback And Integration Of Employability, Julie Dunne

Articles

This paper describes the author’s experience over the last several years of implementing an alternative Food Chemistry laboratory practical for a group of third-year BSc Nutraceuticals students. The initial main objectives were to prepare students for the more independent final-year research project; to incorporate innovative approaches to feedback; and to integrate key employability skills into the curriculum. These were achieved through building the skills required to ultimately allow students working in groups to research, design and run a laboratory for their class. The first year of the project involved innovative approaches to feedback, including weekly feedback sessions, report checklists and …

Family Frontiers: The Spage Age Fiction Of Marge Piercy And Ursula K. Leguin, Sue Norton

Articles

This article considers the ways in which feminist writers of speculative fiction reinvent family forms in ways that disrupt conventional narratives of family in literature.

Nurturing Play-Makers & Active Investigative Agents: Schwartz Tag, Good Video Games And Futures Of Jewish Learning, Owen Gottlieb

Articles

How can an experiential approach to education, in combination with a games-based orientation, help us reach often-elusive educational goals? In many ways the study of games and game design bring us back to tenets of education that we have long known, including the benefits of self-directed learning and project-based work. Games-based design and learning may provide a way to shift the discussion from “What should an educated Jew know?” to “How does a learner develop a taste for Jewish learning and living?”

Immigrant Integration And Social Solidarity In A Time Of Crisis: Europe And The United States In A Postwelfare State, David Abraham, David Abraham

Articles

A cloud has settled over the immigration regimes of the European welfare states and the United States. Confidence has waned in the viability and value of integrating newcomers into a system of social solidarity. The weakening of civic nationalism and secular constitutional patriotism has unsettled national identities and undermined efforts to facilitate the inclusion of immigrants, especially Muslims. More forceful integration policies might better sustain the welfare state, but individual liberties and group recognition make this more difficult. Ironically, immigrants may now fare better in more unjust neoliberal societies such as the United States than in the advanced welfare states. …

Coeur D'Alene Tribe's Enduring Relation To Water -- A Legal History, Dylan R. Hedden-Nicely

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No abstract provided.

Coeur D'Alene Tribe's Claims In The Coeur D'Alene-Spokane River Basin Adjudication, Dylan R. Hedden-Nicely

Articles

No abstract provided.

The Influence Of Arbitrator Background And Representation On Arbitration Outcomes, Adam C. Pritchard, Stephen J. Choi, Jill E. Fisch

Articles

We study the role of arbitrator background in securities arbitration. We find that several aspects of arbitrator background are correlated with arbitration outcomes. Specifically, industry experience, prior experience as a regulator, and status as a professional or retired arbitrator are correlated with statistically significant differences in arbitration awards. The impact of these characteristics is affected by whether the arbitrator in question serves as the panel chair and by whether the parties to the arbitration are represented by counsel. Our findings offer some preliminary insights into the debate over possible arbitrator bias. On the one hand, they suggest that the party …

Quantitative Assessment Of Blood Coagulation By Cold Atmospheric Plasma, Caitlin Heslin, Daniela Boehm, Vladimir Milosavljevic, Michelle Laycock, Patrick Cullen, Paula Bourke

Articles

Cold atmospheric plasma (CAP) is produced by ionizing a chosen gas, thereby creating charged and reactive species. The reactive species generated are capable of inducing a range of biomedically relevant interactions including blood coagulation. However, the underlying biochemical processes of plasma-assisted blood coagulation are largely unknown, and data quantifying blood clot formation or the impact of system parameters on the intensity of the blood clot are scarce. In this study, blood coagulation was quantified by measuring hemoglobin absorbance. System parameters of the kINPen plasma jet were investigated and compared, including treatment time, distance from the plasma source and gas flow …

Size Dependent Translocation And Fetal Accumulation Of Gold Nanoparticles From Maternal Blood In The Rat., Manuela Semmler-Behnke, Jens Lipka, Alexander Wenk, Martin Schäffler, Furong Tian, Günter Schmid, Günter Oberdörster, Wolfgang G. Kreyling

Articles

Background

There is evidence that nanoparticles (NP) cross epithelial and endothelial body barriers. We hypothesized that gold (Au) NP, once in the blood circulation of pregnant rats, will cross the placental barrier during pregnancy size-dependently and accumulate in the fetal organism by 1. transcellular transport across the hemochorial placenta, 2. transcellular transport across amniotic membranes 3. transport through ~20 nm wide transtrophoblastic channels in a size dependent manner. The three AuNP sizes used to test this hypothesis are either well below, or of similar size or well above the diameters of the transtrophoblastic channels.

Methods

We intravenously injected monodisperse, negatively …

Final Recommendations For Policy, Brian O'Neill, Elisabeth Staksrud

Articles

EU Kids Online is the primary source of high quality, independent and comprehensive evidence regarding children’s use of the internet in Europe. This report provides research based recommendations to make the internet a better and safer place for children. Our recommendations include the following guidance:

An Assessment Of The Energy Generation Potential Of Photovoltaic Systems In Cameroon Using Satellite-Derived Solar Radiation Datasets, Lacour Ayompe, Aidan Duffy

Articles

Cameroon like most developing countries does not have a reliable network of surface observation stations for collecting weather data. This has been a major drawback for accurate assessment of the energy generation potential of photovoltaic systems in Cameroon. A viable alternative is to obtain site-specific solar irradiation from satellite-derived datasets. In this paper, the energy output, capacity factor and performance ratio of photovoltaic systems in 33 locations spread around ten regions in Cameroon have been evaluated using monthly average daily global horizontal solar irradiation from long-term satellitederived data available in Solar GIS software. An economic assessment revealed that a simple …

Response Of Conifer-Encroached Shrublands In The Great Basin To Prescribed Fire And Mechanical Treatments, Richard F. Miller, Jaime Ratchford, Bruce A. Roundy, Robin J. Tausch, April Hulet, Jeanne C. Chambers

Articles

In response to the recent expansion of piñon and juniper woodlands into sagebrush-steppe communities in the northern Great Basin region, numerous conifer-removal projects have been implemented, primarily to release understory vegetation at sites having a wide range of environmental conditions. Responses to these treatments have varied from successful restoration of native plant communities to complete conversion to nonnative invasive species. To evaluate the general response of understory vegetation to tree canopy removal in conifer-encroached shrublands, we set up a region-wide study that measured treatment-induced changes in understory cover and density. Eleven study sites located across four states in the Great …