Digital Commons Network^™

Cereal Grain Combustion In Domestic Boilers, Andrew Keppel, John Finnan, Bernard Rice, Philip Owende, Kevin Macdonnell

Articles

This study compared the combustion characteristics and the combustion behaviour of oats, barley, triticale and wheat to that of wood pellets. Sustained grain combustion in domestic boilers was feasible but problematic, the main impediment being clinker formation with ash agglomeration. Clinker formation was lowest for oats which burned easily with fewer operational problems. Triticale displayed reasonably good combustion characteristics and also ignited easily. In contrast, barley and wheat proved difficult to ignite while barley combustion was prone to self-extinguish. Thermal and combustion efficiency and heat output were considerably higher at a grain moisture content of 15% compared to a moisture …

Novel Dielectric Loaded Plasmonic Waveguide For Tight-Confined Hybrid Plasmon Mode, Youqiao Ma, Gerald Farrell, Yuliya Semenova, Hauping Chan, Hongzhou Zhang, Qiang Wu

Articles

In this paper a novel metal-dielectric waveguide structure is proposed to support hybrid long range surface plasmon polaritons (LRSPPs) with a highly confined mode field. The simulation results showed that our proposed structure has better mode confinement and propagation length compared to that of conventional dielectric-loaded surface plasmon polaritons (DLSPPs) waveguides. This structure offers greater flexibility for the design of SPPs waveguides by altering the trade-off between mode confinement and propagation length. The proposed structure has significant potential for application in highly integrated photonic circuits.

Bim Collaboration In Student Architectural Technologist Learning, Malachy Mathews

Articles

This paper is the result of a qualitative case study which investigated the influence of building information modelling (BIM) collaboration on the learning of student architectural technologists based around a studio group project. The purpose of the paper is to disseminate knowledge gained into a new learning environment facilitated by the collaborative properties of a BIM application. A qualitative case study approach has been used to undertake the examination of the learners’ experiences during the project. This approach allowed the author to map the complex interaction between the participants during the stages of the collaborative design project. The paper provides …

Isolation And Partial Characterization Of Bioactive Fucoxanthin From Himanthalia Elongata Brown Seaweed: A Tlc-Based Approach, Gaurav Rajauria, Nissreen Abu-Ghannam

Articles

Seaweeds are important sources of carotenoids, and numerous studies have shown the beneficial effects of these pigments on human health. In the present study, Himanthalia elongata brown seaweed was extracted with a mixture of low polarity solvents, and the crude extract was separated using analytical thin-layer chromatography (TLC).The separated compounds were tested for their potential antioxidant capacity and antimicrobial activity against Listeria monocytogenes bacteria using TLC bioautography approach. For bio-autography, the coloured band on TLC chromatogram was visualized after spraying with DPPH and triphenyltetrazolium chloride reagents which screen antioxidant and antimicrobial compounds, respectively, and only one active compound was screened …

Rationalizing Creativity—Rationalizing Public Service: Is Scheduling Management Fit For The Digital Era?, Ann-Marie Murray

Articles

In public broadcast organizations across Europe, scheduling has been transformed from a marginal, administrative activity to a highly strategic management tool (Hellman, 1999; Hujanen, 2002; Meier, 2003;Ytreberg, 2000) Ellis (2000)described it as “the locus of power in television,” organizing production and managing budgets (p. 26). The role of scheduling in public broadcast organizations today reflects the demands of increasing competition and political pressure for efficiency and accountability. However, new challenges have emerged in the transition from public service broadcasting to public service media (PSM). PSM providers must redefine their mission for the digital era and find …

Agency Self-Insulation Under Presidential Review, Jennifer Nou

Articles

Agencies possess enormous regulatory discretion. This discretion allows executive branch agencies in particular to insulate their decisions from presidential review by raising the costs of such review. They can do so, for example, through variations in policymaking form, cost-benefit analysis quality, timing strategies, and institutional coalition-building. This Article seeks to help shift the literature's focus on courtcentered agency behavior to consider instead the role of the President under current executive orders. Specifically, the Article marshals public-choice insights to offer an analytic framework for what it calls agency self-insulation under presidential review, illustrates the phenomenon, and assesses some normative implications. The …

The Hidden Costs Of Terrorist Watch Lists, Anya Bernstein

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No abstract provided.

Professional Skills Portfolio For A Progressive Engineering Education, Dermot Mcgarthy, David Kennedy

Articles

At the 2013 launch of the return to work scheme, “Springboard” in Dublin, it was stated that employers were seeking staff with enhanced language, presentation, communication, coping, and team-working skills. Graduates without these skills were finding it more difficult to gain permanent employment and were more likely to find themselves out of work unless they developed these skills. Enhancing personal development skills in education requires a revision of existing programmes. Not alone will these skills open new doors of opportunity for those who have lost their jobs during the recession, but should help sustain them going forward. The education of …

Secure Access Control For Health Information Sharing Systems, Suhair Alshehri, Rajendra K. Raj

Articles

The 2009 Health Information Technology for Economic and Clinical Health Act (HITECH) encourages healthcare providers to share information to improve healthcare quality at reduced cost. Such information sharing, however, raises security and privacy concerns that require appropriate access control mechanisms to ensure Health Insurance Portability and Accountability Act (HIPAA) compliance. Current approaches such as Role-Based Access Control (RBAC) and its variants, and newer approaches such as Attribute-Based Access Control (ABAC) are inadequate. RBAC provides simple administration of access control and user permission review, but demands complex initial role engineering and makes access control inflexible. ABAC, on the other hand, simplifies …

Insider Threat Mitigation And Access Control In Healthcare Systems, Suhair Alshehri, Sumita Mishra, Rajendra Raj

Articles

Rapid and reliable information sharing of patient healthcare information has become critical for achieving better care with lower costs. However, such healthcare information sharing requires to be done securely with privacy guarantees, as required by law. Among its other requirements, the Health Insurance Portability and Accountability Act (HIPAA) requires the use of appropriate access control mechanisms to protect healthcare information. Despite these legal requirements, currently implemented access control models in the healthcare domain are typically inadequate as demonstrated by the large and increasing numbers of successful attacks on healthcare systems. In particular, current access control models do not provide sufficient …

Foreign Affairs Federalism: A Revisionist Approach, Daniel Abebe, Aziz Huq

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No abstract provided.

The Problem Of Resource Access, Lee Anne Fennell

Articles

The Coasean insight that transaction costs stand between the world as we know it and an ideal of perfect efficiency has provided generations of law and economics scholars with an analytic North Star But for legal scholars interested in the efficiency implications of property arrangements, transaction costs turn out to constitute an unhelpful category. Transaction costs are related to property rights in unstable and contested ways, and they comprise a heterogeneous set of impediments, not all of which are amenable to cost-effective reduction through law. Theating them as focal confuses the cause of our difficulties in structuring access to resources …

The Powers Of Congress And The President On Matters That Affect U.S. Foreign Affairs, Malvina Halberstam

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No abstract provided.

Detecting Point-Like Sources Of Unknown Frequency Spectra, Raffaele Solimene, Giuseppe Ruvio, Angela Dell’Aversano, Antonio Cuccaro, Max Ammann, Rocco Pierri

Articles

The problem of detecting point-like sources whose frequency spectrum is unknown is addressed. Limitations of single-frequency approaches are identified by analytical as well as numerical arguments. To overcome these limits, different multifrequency approaches which combine frequency data incoherently are compared. In particular, a novel multifrequency MUSIC-like algorithm based on interferometric concepts is proposed. Results show that the algorithm outperforms other methods under comparison.

Rethinking Sustainability To Meet The Climate Change Challenge, Jessica Owley, Michael Burger, Elizabeth Burleson, Rebecca M. Bratspies, Robin Kundis Craig, David M. Driesen, Alexandra R. Harrington, Keith H. Hirokawa, Sarah Krakoff, Katrina Fischer Kuh, Stephen R. Miller, Patrick Parenteau, Melissa Powers, Shannon M. Roesler, Jonathan Rosenbloom

Articles

A group of environmental law professors formed the Environmental Law Collaborative with the goal of engaging environmental law scholars in the thorny issues of the day. The members of the Collaborative gathered in the summer of 2012 to produce an intensive and collective assessment of sustainability in the age of climate change. Their writings examine the process of adapting the principles and application of sustainability to the demands of climate change, including framing the term sustainability in climate change discussions; coordinating sustainable practices across disciplines such as law, economics, ethics, and the hard sciences; and conceptualizing the role of sustainability …

A Dynamic Rule-Based Approach For Self-Adaptive Map Personalisation Services, Basel Magableh

Articles

With continuous increase of available geographical information services, requirements for personalising map contentaccording to the user’s profile and context information areincreasingly important. Map personalisation applications could adapt their functionality/behaviour to provide the user with specific spatial data related to his interests at runtime. However, this can be achieved if map applications are able to filter and prioritise geospatial data using dynamic decision-making processes, whichconsiders users’ profiles and context for selecting and styling map content according to their needs. To this aim, this article proposes a new approach for map personalisation using dynamic rule-based engine, which provides the map application with …

Integrating Emotional Attachment And Sustainability In Electronic Product Design, Alex Lobos, Callie W. Babbitt

Articles

Current models for Information and Communication Technology (ICT) products encourage frequent product replacement with newer versions that offer only minor incremental improvements. This pattern, named planned obsolescence, diminishes user experience and shortens product lifespan. This paper presents the conceptual basis for a two-part integrated approach to combating planned obsolescence in ICT devices. First, design for emotional attachment, which creates products that users enjoy, value, and use for longer. Second, technological adaptability, which anticipates product upgrades and repairs as new technologies emerge. A model interdisciplinary design course in industrial design and sustainability, also described herein, trains students to apply this approach …

Spatial Search Techniques For Mobile 3d Queries In Sensor Web Environments, Junjun Yin, James Carswell

Articles

Developing mobile geo-information systems for sensor web applications involves technologies that can access linked geographical and semantically related Internet information. Additionally, in tomorrow’s Web 4.0 world, it is envisioned that trillions of inexpensive micro-sensors placed throughout the environment will also become available for discovery based on their unique geo-referenced IP address. Exploring these enormous volumes of disparate heterogeneous data on today’s location and orientation aware smartphones requires context-aware smart applications and services that can deal with “information overload”. 3DQ (Three Dimensional Query) is our novel mobile spatial interaction (MSI) prototype that acts as a next-generation base for human interaction within …

Policy Preferences And Legal Interpretation, Anup Malani, Ward Farnsworth, Dustin F. Guzior

Articles

No abstract provided.

Our Electoral Exceptionalism, Nicholas Stephanopoulos

Articles

Election law suffers from a comparative blind spot. Scholars in the field have devoted almost no attention to how other countries organize their electoral systems, let alone to the lessons that can be drawn from foreign experiences. This Article begins to fill this gap by carrying out the first systematic analysis of redistricting practices around the world. The Article initially separates district design into its three constituent components: institutions, criteria, and minority representation. For each component, the Article then describes the approaches used in America and abroad, introduces a new conceptual framework for classifying different policies, and challenges the exceptional …

Personal Jurisdiction And Choice Of Law, Stewart E. Sterk

Articles

The article critiques the Supreme Court's recent personal jurisdiction decisions for failing to provide a clear doctrinal framework, arguing that the Court has oscillated between prioritizing state sovereignty and individual liberty without adequately balancing these interests. The author contends that personal jurisdiction doctrine must evolve to address the complexities of modern, interconnected commerce while protecting both state regulatory power and defendants' reliance interests. The analysis emphasizes the need for a coherent approach that integrates fairness, foreseeability, and sovereign authority in jurisdictional determinations.

On The Quadratic Bundles Related To Hermitian Symmetric Spaces, Tihomir Valchev

Articles

We develop the direct scattering problem for quadratic bundles associated to Hermitian symmetric spaces. We adapt the dressing method for quadratic bundles which allows us to find special solutions to multicomponent derivative Schrodinger equation for instance. The latter is an infinite dimensional Hamiltonian system possessing infinite number of integrals of motion. We demonstrate how one can derive them by block diagonalization of the corresponding Lax pair.

Cell Death Pathways In Directly Irradiated Cells And Cells Exposed To Medium From Irradiated Cells, K.K. Jella, Amaya Garcia, Brendan Mcclean, Hugh Byrne, Fiona Lyng

Articles

Purpose: The aim of this study was to compare levels of apoptosis, necrosis, mitotic cell death and senescence after treatment with both direct radiation and irradiated cell conditioned medium. Materials and methods: Human keratinocytes (HaCaT cell line) were irradiated (0.005, 0.05 and 0.5 Gy) using a cobalt 60 teletherapy unit. For bystander experiments, the medium was harvested from donor HaCaT cells one hour after irradiation and transferred to recipient HaCaT cells. Clonogenic assay, apoptosis, necrosis, mitotic cell death, senescence and cell cycle analysis were measured in both directly irradiated cells and bystander cells Results: A reduction in cell survival was …

Advances In The Synthesis Of Zno Nanomaterials For Varistor Devices, Suresh Pillai, John M. Kelly, Raghavendra Ramesh, Declan Mccormack

Articles

ZnO based varistors are widely used for overvoltage protection in many electrical and electronic circuits, at voltages ranging from a few to over a million volts. By careful control of the microstructure, through nanostructuring by chemical routes, it should be possible to produce varistors with high breakdown voltage (Vc), as this is proportional to the number of active grain boundaries in the sintered body. This property is particularly important for the production of the small-sized varistors needed for modern electronic instruments such as tablet computers and mobile phones. The current review will outline the recent advances in the chemical processing …

‘Moving In’: Difficulties And Support In The Transition To Higher Education For In-Service Social Care Students, Fiona Mcsweeney

Articles

This paper reports on the difficulties and supports experienced by social care practitioners within the educational institution during their transition to higher education. A life transition such as entering higher education causes stress for individuals and social support is essential in successfully dealing with this stress (Anderson et al., 2012). Fifteen social care practitioners were interviewed twice during and once at the end of their first academic year in college. Findings indicate that participants were reluctant to approach staff for help despite anxiety about classes and assignments. Discussion and debate in class helped learning and contributed to feelings of being …

Bullying In A New Ground: Cyberbullying Among 9-16 Year Olds In Ireland, Thuy Dinh, Brian O'Neill

Articles

This paper builds on the data collected in Ireland by the cross-national EU Kids Online II project- a large 25 country survey which investigated children’s experiences of the internet, focusing on issues of use, activities, risks, and safetyi . This article explores incidences, forms and consequences of cyberbullying among Irish children, as well as discussing possible prevention and intervention strategies.

Comparison Of Manual Versus Automated Data Collection Method For An Evidence-Based Nursing Practice Study, Matthew D. Byrne, T R. Jordan, Tamara Welle

Articles

OBJECTIVE:

The objective of this study was to investigate and improve the use of automated data collection procedures for nursing research and quality assurance.

METHODS:

A descriptive, correlational study analyzed 44 orthopedic surgical patients who were part of an evidence-based practice (EBP) project examining post-operative oxygen therapy at a Midwestern hospital. The automation work attempted to replicate a manually-collected data set from the EBP project.

RESULTS:

Automation was successful in replicating data collection for study data elements that were available in the clinical data repository. The automation procedures identified 32 "false negative" patients who met the inclusion criteria described in …

Strategic Planning In Construction Professional Service Firms: A Study Of Irish Qs Practices, Roisin Murphy

Articles

The role and usefulness of strategic planning has been documented over several decades of strategic management research. Despite the significant body of existing knowledge in the field of strategic planning, there remains limited empirical investigation of the construction sector, specifically professional service firms operating within it. The construction sector is hugely important to the Irish economy, yet until now, no empirical investigation has been undertaken to determine the strategic planning process in construction professional service firms in Ireland. A two-phase mixed methods study was undertaken to ascertain the extent of strategic planning within quantity surveying (QS) practices in Ireland. Characteristics …

Sheridan's Promising Tale Is Half Told, Ian Kilroy

Articles

Review of 'Break a Leg', the memoir by Irish theatre artist Peter Sheridan. First published in the Sunday Business Post Magazine.

Un-Mentoring In The Last Frontier, Daria O. Carle, Christie Ericson, Kristi D. Powell

Articles

In the fall 2005, when two faculty librarians at the University of Alaska Anchorage’s (UAA) Consortium Library realized that three people on the library staff were enrolled in library school, they saw the perfect opportunity to start a discussion group that would benefit both currently employed librarians and students entering the information field. The original three students were enrolled in the MLIS distance program at the University of Washington, working in the Consortium Library, and taking classes part-time. The two faculty librarians had been out of library school for more than ten years by then, so the intent was to …