Digital Commons Network^™

Quality And Safety Assessment During The Ozonation Of Cloudy Apple Juice, Sonal Patil, B. Torres, Brijesh Tiwari, Hilda Wingaard, Paula Bourke, Patrick J. Cullen, C. O'Donnell, Vasilis Valdramidis

Articles

Traditionally, ozone processing within the food industry has focused on solid foods by either gaseous treatment or washing with ozonated water. However, with the FDA’s approval of ozone as a direct additive to food, the potential for liquid applications has emerged. This study investigates the effect of ozone processing on microbial inactivation (E. coli ATCC 25922 and NCTC 12900), and quality parameters (colour, phenolic content) of apple juice. Apple juice samples were ozonated at room temperature (20±1.5^oC) with an ozone concentration of 0.048 mg O₃ min^-1 ml^-1 and treatment time of 0 to 10 …

Implementation Of The Dit-Achiev Model For Sustainable Tourism Destination Management: Killarney, Ireland, A Case Study, Kevin Griffin, Maeve Morrissey, Sheila Flanagan

Conference papers

The DIT-ACHIEV Model is a model of sustainable tourism indicators developed in a previous research project undertaken by the School of Hospitality Management and Tourism, Dublin Institute of Technology. The indicators represent six fields of interest – Administration, Community, Heritage, Infrastructure, Enterprise and Visitor (Flanagan et al, 2007). This current research addresses the implementation of the DIT- ACHIEV model in an Irish tourism destination, with the objective to assess whether it can be implemented by the local community in any tourism destination.

The methodology used to implement the model is based on recommendations by Goodey (1995) and Denman (2006). Goodey …

Critical Success Factors And Performance Management And Measurement: A Hospitality Context, Detta Melia

Conference papers

This paper reports on research carried out in the hotel sector of the Irish hospitality industry on critical success factors and their impact on performance management and measurement. The paper outlines the industry context and reviews the literature on critical success factors. This literature presents a discussion of the concept of critical success factors (CSFs) in the context of performance measurement and the hospitality industry, which are considered necessary for organisational prosperity because of the impact they have on the organisation’s potential performance. Critical success factors are those factors capable of providing the greatest competitive leverage upon which resources should …

Can We Be 'Friends'? Social Networking And Student Engagement In An Academic Environment, Mary O'Rawe

Conference papers

Students’ methods of engagement in third level education are very different to those of a decade ago (Cloete, de Villiers & Roodt 2009). There are a number of factors impacting on these changes in students’ profiles, expectations and willingness to engage. One of these factors which is addressed by the author is the way in which students now use social networking tools to engage and communicate. Popular new technologies such as wikis, blogs and podcasts are now being used for academic purposes. But what are the roles of such tools? Do they merely aid staff-student communication and student-student communication, do …

Volume 12, 2010, Ellen Hazelkorn, Nora French, Wolfgang Truetzschler

Issues

No abstract provided.

Dit Graduate Exhibition Show Of The School Of Art, Design And Printing 2010, Dublin Institute Of Technology

DIT Publications

Exhibition committee staff Kieran Corcoran Peter Jones Paul White Robert Tully Neville Knott John Short Brenda Dermody Clare Bell Brenda Duggan Annette Buckley Pat Muldowny Joe Hanly Exhibition commitee student representatives Lucy Clarke Margaret Flynn Kate Geoghegan Gavin Gogarty Fiona O'Keeffe Cian McKenna Becky O'Hara Catalogue concept and design Paul Woods - www.paultheillustrator.com Maeve Keane - www.andstudio.ie Photography by Gillian Buckley. Typeset in DIN 9pt and 24pt. Printed on 140gsm Revive 50/50 by Future Print, Dublin. DIT Graduate Exhibition 2010

Consequences Of Work-Family Balance And Comparisons With Work-Family And Family-Work Conflict, Sasha Marie Burnett

Dissertations and Theses @ UNI

The American work environment is quite different than it was just a few decades ago. Researchers, popular media, and employers alike have wondered how the changing labor environment is affecting employees. Participants in this study (N = 171) were 18 years of age or older, employed full-time and had at least one dependent child living at home. Of interest in this study was how well three measures of the work-family interface were able to predict five work-related consequences that would be of interest to employers. Work-family balance predicted both job satisfaction and intentions to quit, work-family conflict predicted job tension/strain …

Regional Differences In Jurors’ Attitudes And Knowledge, Heather M. Caspers

Dissertations and Theses @ UNI

Dynamic social impact theory (DSIT; Latane, 1996) suggests that social influence leads to four phenomena: clustering (regional differences in attitudes), correlation (emergent relationships between attitudes), consolidation (reduction in attitude variance), and continuing diversity (whereby minority opinions persist). These phenomena have been shown in a variety of settings (Harton & Bourgeois, 2004; Harton & Bullock, 2007), but geographic clustering in attitudes about crime have not been examined. These attitudes have the potential to affect a verdict in a trial if a defendant has a change of venue to a different area of the state or the country. Two datasets, the National …

Asymptotic Properties Of Markov Modulated Sequences With Fast And Slow Time Scales, Son Luu Nguyen

Wayne State University Dissertations

In this dissertation we investigate asymptotic properties of Markov modulated random processes having two-time scales. The model contains a number of mixing sequences modulated by a switching process that is a discrete-time Markov chain. The motivation of our study stems from applications in manufacturing systems, communication networks, and economic systems, in which regime-switching models are used.

This thesis focuses on asymptotic properties of the Markov modulated processes under suitable scaling. Our main effort focuses on obtaining weak convergence and strong approximation results.

Wikipedia2onto: Building Concept Ontology Automatically, Experimenting With Web Image Retrieval, Huan Wang, Xing Jiang, Liang-Tien Chia, Ah-Hwee Tan

Research Collection School Of Computing and Information Systems

Given its effectiveness to better understand data, ontology has been used in various domains including artificial intelligence, biomedical informatics and library science. What we have tried to promote is the use of ontology to better understand media (in particular, images) on the World Wide Web. This paper describes our preliminary attempt to construct a large-scale multi-modality ontology, called AutoMMOnto, for web image classification. Particularly, to enable the automation of text ontology construction, we take advantage of both structural and content features of Wikipedia and formalize real world objects in terms of concepts and relationships. For visual part, we train classifiers …

Molecular Effects Of Metolachlor Exposure On Human Cells, Sean Hartnett

Dissertations and Theses @ UNI

Metolachlor is one of the most commonly used herbicides in the United States of America. Numerous studies have shown that exposure to this herbicide results in decreased cell proliferation, growth and reproductive ability in different organisms. However, pervious studies used high concentrations of metolachlor to see molecular effects. In the study presented here, we investigated the effects of metolachlor on human cells. Previous cell proliferation analysis from our laboratory has shown that metolachlor is capable of significantly inhibiting the growth of normal human fibroblasts and HepG2 cells at 1.6 parts per billion (ppb) and 50 ppb. We assessed cellular effects …

The New Childbirth : An Analysis Of Planned Cesarean Sections, Loren Wilbers

Dissertations and Theses @ UNI

This study examines the experience of planned cesarean section delivery as told by six mothers who have given birth utilizing this method. The rate of planned cesarean deliveries being performed in the United States has been increasing over the past two decades. The existing literature attributes this phenomenon to mothers' fear of the pain associated with vaginal birth, desires to imitate celebrities and maintain vaginal tone, and the greed of obstetricians who push for cesarean deliveries for both convenience and financial gain. The voices of mothers themselves is lacking in the existing literature. Thus, this study draws upon a qualitative, …

Accelerated Lattice Boltzmann Method For Colloidal Suspensions Rheology And Interface Morphology, Hassan Farhat

Wayne State University Dissertations

ABSTRACT

ACCELERATED LATTICE BOLTZMANN MODEL FOR COLLOIDAL SUSPENSIONS RHEOLOGY AND INTERFACE MORPHOLOGY

by

HASSAN FARHAT

July 2010

Advisor: Dr. Singh Trilochan

Co-Advisor: Dr. Joon Sang Lee

Major: Mechanical Engineering

Degree: Doctor of Philosophy

Colloids are ubiquitous in the food, medical, cosmetic, polymer, water purification and pharmaceutical industries. Colloids thermal, mechanical and storage properties are highly dependent on their interface morphology and their rheological behavior.

Numerical methods provide a cheap and reliable virtual laboratory for the study of colloids. However efficiency is a major concern to address when using numerical methods for practical applications.

This work introduces the main building-blocks for …

Innovative Acoustic Reflection Imaging Techniques And Application To Clinical Breast Tomography, Steve Phillip Schmidt

Wayne State University Dissertations

Conventional ultrasound techniques use beam-formed, constant sound speed ray models for fast image reconstruction. However, these techniques are inadequate for the emerging new field of ultrasound tomography (UST). We present a new technique for reconstruction of reflection images from UST data. We have extended the planar Kirchhoff migration method used in geophysics, and combined it with sound speed and attenuation data obtained from the transmission signals to create reflection ultrasound images that are corrected for refractive and attenuative effects.

The resulting techniques were applied to simulated numerical phantom data, physical phantom data and in-vivo breast data obtained with an experimental …

From The Barrio To A Four-Year University: The Academic Success Stories Of Fifteen Socioeconomic Disadvantaged Latino Male College Students, Erineo Eddy Espinoza

Dissertations and Theses @ UNI

Review of the prior literature on the topic of academic achievement among U.S. Latino students reveals both problematic performance and systematic disadvantaged obstacles that impede their ability to achieve expected academic accomplishments. Despite such conditions, however, there are Latino students from disadvantaged backgrounds who graduated from high school and enrolled in a four year university. Interpretations of action theory were used as a theoretical framework to interview 15 collegiate Latino males, who grew up in disadvantaged socioeconomic communities (barrios) and enrolled in a four year university. Three findings emerged from their interviews that explained the academic achievements from both these …

Impedance Spectroscopy Of Batio₃ Cubes Suspended In Lossy Liquids As A Physical Model Of Two-Phase System, Piotr Z. Jasinski, Vladimir Petrovsky, Fatih Dogan

Materials Science and Engineering Faculty Research & Creative Works

Impedance spectroscopy techniques were used for analysis of the physical model in a two-phase system toward determining of dielectric constant of dielectric particles suspended in liquids at various solids loading (volume fraction) levels. Model experimental studies were conducted using BaTiO3 as a dielectric material that was prepared as small cubes of uniform size (2×2×1 mm). Barium titanate (BT) cubes having a dielectric constant of 3850 were immersed in liquids of low dielectric constant and moderate electrical conductivity. Measured impedance spectra consisted of two semicircles, which were fitted for (R∥C)(R∥C) equivalent circuit. The parameters obtained from fitting were compared with the …

Teleoph: A Secure Real-Time Teleophthalmology System, Yongdong Wu, Zhou Wei, Haixia Yao, Zhigang Zhao, Lek Heng Ngoh, Robert H. Deng, Shengsheng Yu

Research Collection School Of Computing and Information Systems

Teleophthalmology (TeleOph) is an electronic counterpart of today's face-to-face, patient-to-specialist ophthalmology system. It enables one or more ophthalmologists to remotely examine a patient's condition via a confidential and authentic communication channel. Specifically, TeleOph allows a trained nonspecialist in a primary clinic to screen the patients with digital instruments (e.g., camera, ophthalmoscope). The acquired medical data are delivered to the hospital where an ophthalmologist will review the data collected and, if required, provide further consultation for the patient through a real-time secure channel established over a public Internet network. If necessary, the ophthalmologist is able to further sample the images/video of …

Utilizing Multimedia Case Studies To Teach The Professional Side Of Project Management, Cassandra C. Elrod, Susan L. Murray, Barry B. Flachsbart, Karl E. Burgher, Drew M. Foth

Business and Information Technology Faculty Research & Creative Works

This research was conducted to evaluate the effectiveness of using a LITEE multimedia case study to teaching concepts in engineering courses. The LITEE Superstar case study was implemented in an engineering Project Management course. Numerous surveys regarding student expectations, outcomes, and attitudes were collected and results are presented herein. Overall, the study provided evidence that the students felt that the LITEE case study added value to the course via the different methods of teaching material, aided in the understanding of the project selection process, and ultimately helped them be successful in their course project which was conducted for a real …

Media Literacy And Communication Rights: Ethical Individualism In The New Media Environment, Brian O'Neill

Articles

The dominant discourse of media literacy policy espouses an ethical individualism within the digital media environment in which the source of moral values and principles, and the basis of ethical evaluation, is the individual. In this perspective, even vulnerable citizens such as children and young people, who tend to be in the vanguard of new media adoption, are required to negotiate the risks and opportunities of the online world with diminishing degrees of institutional support from trusted information sources. Noticeably absent from this discourse is any consideration of the notion of communication rights. Examining an alternative conceptualization of media literacy …

Current Policy Developments In European Media Literacy, Brian O'Neill

Articles

In August of 2009, the European Commission issued a formal recommendation on media literacy adding to a series of initiatives underway since 2006 to build a comprehensive European media literacy policy (Commission of the European Communities 2009). Media literacy is now a well-established concept referring to the ability to critically understand and use media in a variety of contexts (see Aufderheide 1997). Recognising that the way people use media is changing and that the volume of information received is enormous, the Commission notes that all citizens need to have the ability to access, analyse and evaluate images, sounds and texts …

Beyond Europe: Launching Digital Radio In Canada And Australia, Brian O'Neill

Books/Book chapters

Eureka 147 was, as we have argued throughout this volume, a European technology designed within the very particular context of European public service broadcasting (see also Rudin 2006; O'Neill 2009). At the same time, the consortitum behind DAB technology had the ambition that Eureka 147 would become the world standard for digital radio. DAB was indeed the first such technological system to achieve standardisation at the European Telecommunications Standards Institute (ETSI), and be recommended as a global standard for digital terrestrial sound broadcasting by the International Telecommunications Union (ITU).

Dislocations: Participatory Media With Refugees In Malta And Ireland, Anthony Haughey

Books/Book chapters

Malta is located in the Mediterranean Sea between North Africa and Europe, a receiving country for significant inward migration. For most migrants the goal is to reach mainland Europe. However, every year a significant number of smuggler boats inadvertently drift into Maltese territorial waters often in severe distress, resulting in rescue by the Maltese Navy and an uncertain future.

Whilst working in Malta I was struck by the similarities between Ireland and Malta. Both islands’ are peripheral locations on the western and southern edges of Europe. Historically both countries have experienced significant outward migration of its citizens who live all …

Not Seeing The Joke: The Overlooked Role Of Humour In Media Production Research, Edward Brennan

Conference Papers

This paper attempts to offer a methodological contribution to media production research. By reconsidering an earlier case study, and reviewing relevant literature, it illustrates how humour can fulfill several functions in media production. Importantly, humour is a central means of performing the ‘emotional labour’ that increasingly precarious media work demands. Methodologically, the everyday joking and banter of media workers can provide an important and, heretofore, overlooked means of accessing culture, meaning, consensus and conflict in media organisations. The article argues that humour’s organisational role should be considered when designing production research.

Digital Commons @ Iwu Report, 2007-2009, Stephanie Davis-Kahl

Administrative Reports

No abstract provided.

High Crimes, Not Misdemeanors: Deterring The Production Of Unsafe Food, Rena I. Steinzor

Faculty Scholarship

In the fall of 2008, Minnesota public health officials became alarmed by an unusually high number of illnesses and deaths caused by salmonella poisoning. Federal and state regulators and the news media eventually traced the outbreak back to products supplied by the Peanut Corporation of America (PCA). Employees shipped batches that tested positive for salmonella from a plant with a leaking roof, mold growing on ceilings and walls, rodent infestation, filthy processing receptacles, and feathers and feces in the air filtration system. Under an agreement with the Food and Drug Administration (FDA), Georgia state inspectors visited the PCA plant nine …

Development Of A Cloud Solution For Smes In The Irish Construction Industry, Alan V. Hore, Alan Redmond, Roger West

Conference papers

There is a strong emerging trend within the Information Communication Technology (ICT) sector for replacing traditional packaged desktop applications with Web based, outsourced products and services. The drive for this innovative solution is its contribution to enabling software to be developed, delivered and consumed in discrete chunks (known as services) liberating the users from traditional computing and providing services accessible across a range of devices and appliances. The objective of this paper is to report on the progress towards defining this Web based service, commonly known as ‘Cloud computing’, for Small to Medium Size Enterprises (SMEs) in the Irish construction …

Finding A Middleware Ict Solution For The Irish Construction Sme Sector, Alan V. Hore, Alan Redmond, Roger West

Conference papers

A key feature of the Irish construction industry is its fragmented structure. Some 16,000 businesses list their main activity as construction, yet no company has more than 3% of the total Irish output. The top 20 companies have less than 15% of total output. There is a very high number of Small to Medium Sized Enterprises (SME‟s) in the sector. However, most software products which address the specific needs of the construction industry are designed for larger companies. It is felt that the needs of the large number of SME‟s in the sector are underserved. The Construction IT Alliance (CITA) …

Child Sexual Abuse, Links To Later Sexual Exploitation/High-Risk Sexual Behavior, And Prevention/Treatment Programs, Kevin Lalor, Rosaleen Mcelvaney

Articles

This paper reviews the literature on the nature and incidence of child sexual abuse, explores the link between child sexual abuse and later sexual exploitation, and reviews the literature on prevention strategies and effective interventions in child sexual abuse services. Our understanding of the international epidemiology of child sexual abuse is considerably greater than it was just 10 years ago, and studies from around the world are examined. Childhood sexual abuse can involve a wide number of psychological sequelae, including low self-esteem, anxiety, and depression. Numerous studies have noted that child sexual abuse victims are vulnerable to later sexual revictimization, …

The Construction Of Locative Situations: Locative Media And The Situationist International, Recuperation Or Redux?, Conor Mcgarrigle

Articles

A trend exists within locative media art of invoking the practices of the Situationist International (SI) as an art historical and theoretical background to contemporary practices. It is claimed that locative media seeks to re-enchant urban space though the application of locative technologies to develop novel and experimental methods for navigating, exploring and experiencing the city. To this end, SI concepts such as psychogeography and the techniques of detournement and the de ́rive (drift) have exerted considerable influence on locative media practices, but questions arise as to whether this constitutes a valid contemporary appropriation or a recuperative co-option, serving to …

Threshold Lives: Exploring The Liminal Consumption Of Tweens, Kevina Cody, Katrina Lawlor, Pauline Maclaren

Articles

The intervening spaces of socio-cultural organisation have proved sources of fascination and powerful theory development in the fields of sociology, psychology and anthropology (e.g. Douglas, 1966; Van Gennep, 1961; Freud, 1950, Foucault, 1977). Consumer culture research has hitherto acknowledged the potency of studying transitional phenomena, spaces and places and the interactions of varied ontologies with the consumption experiences of the individuals or group in flux and evolution (e.g. Davies and Fitchett, 2004; Maldonado and Tansuhaj, 1999; Gentry, 1997; Schouten, 1991). But what of those whose reality is the threshold between two ordered and defined worlds, the centre of nowhere? This …