Digital Commons Network^™

Online Resources Platform For Mathematics Education, Marisa Llorens, Edmund Nevin, Eileen R. Mageean

Other resources

The aim of this project was to develop and explore the use of a Sharable Content Object Reference Model (SCORM) integrating a web-based platform for the study of mathematics as part of an active learning environment. The platform was designed to provide active support to engineering students especially those in their first year of study. Early use of the platform can identify possible areas of weakness and provide the self-learning environment required for students to become more proficient in areas where they are lacking key skills or are finding the concepts difficult to understand. The platform consists of a set …

Self-Chem: Student Engagement In Learning Through Flipped Chemistry Lectures., Michael K. Seery

Other resources

This project introduces the idea of “flipped lecturing” to a group of second year students. The aim of flipped lecturing is to provide much of the “content delivery” of lecture in advance, so that the lecture hour can be devoted to more in-depth discussion, problem solving, etc. As well as development of the material, a formal evaluation is being conducted. Fifty-one students from year 2 Chemical Thermodynamics module took part in this study. Students were provided with online lectures in advance of their lectures. Along with each online lecture, students were given a handout to work through as they watched …

Optimization Of Fermentation Conditions For The Utilization Of Brewing Waste To Develop A Nutraceutical Rich Liquid Product, Shilpi Gupta, Amit Jaiswal, Nissreen Abu-Ghannam

Articles

Utilization of brewers’ spent grain (BSG), for the development of a fermented liquid product rich in value-added phenolic compounds was investigated. Changes in and liberation of phenolic compounds and antioxidant activity during fermentation of BSG was studied. The effect of various particle size (PS), solid liquid (SL) ratio, fermentation time and rotation speed was optimized using response surface methodology (RSM) for the purpose of improving bacterial growth and the enhancement in the release of polyphenolic compounds. Contour maps generated using the response surface equation showed that the experimental variables significantly affected the response. A production of 10.4 log cfu/ml, 2.95 …

Ultrasound For Improved Crystallisation In Food Processing, N. Misra, Navneet Deora, Brijesh Tiwari, Patrick J. Cullen

Articles

Within the food industry, controlling crystallisation is a key factor governing food structure, texture and consumer appeal, with some foods requiring the promotion of crystallisation in a controlled manner (e.g. chocolate) and others a check (e.g. in honey). Sonocrystallisation is the application of ultrasound energy to control the nucleation of a crystallisation process. The use of power ultrasound provides a non-invasive approach to producing crystals with desired properties. Sonocrystallisation facilitates process control, primarily by modulating crystal size distribution and morphology. This paper details the governing mechanisms of sonocrystallisation. Proven and potential applications of the process in foods, including chocolates, honey, …

Making Connections: Networked Mindmaps As A Student Centred Assessment For Learning., Barry Ryan

Articles

Engaging students is a difficult task faced by all academics. Student engagement can be achieved by giving ownership of their learning back to the student and by carefully aligning the assessment methodology to the students learning and future employability. To promote learning ownership in this case-study, a group of final year students were involved in the design of the delivery (‘flipped classroom’) and assessment strategy (‘flipped assessment’) of the curriculum. Upon reflection, students noted a deep understanding of their self-selected topic by taking ownership of their learning and their ‘assessment for learning’ within the bounded learning environment. Additionally, students enhanced …

Line Up, Line Up: Using Technology To Align And Enhance Peer Learning And Assessment In A Student Centred Foundation Organic Chemistry Module., Barry Ryan

Articles

This paper describes how three technologies were utilised in combination to align student learning and assessment as part of a case study. Multiple choice questions (MCQs) were central to all these 10 technologies. The peer learning technologies; Personal Response Devices (a.k.a. Clickers) and PeerWise (http://peerwise.cs.auckland.ac.nz), were implemented to achieve scaffolded, self-directed independent learning by the students which aligned to the assessment methodology through creating, analysing, answering and discussing multiple choice questions. Personal response devices enhanced in-class activity involvement, whilst PeerWise provided structure and support for independent student learning through 15 defined outside class activities. An associated technology, online MCQs hosted …

A Walk Down The Red Carpet: Students As Producers Of Digital Video-Based Knowledge., Barry Ryan

Articles

Disengaged and apathetic students are common in many undergraduate classrooms. Learning to these students is a passive process, typified by a consumer-like attitude. One approach to engage students, and enhance the learning experience, is to integrate active learning into the curriculum. The purpose of the pedagogical evaluative study described here was to investigate if student researched, designed and created digital video could act as a viable reusable peer learning resource. Although the use and integration of technology was central to the scope of this project, other ideas such as threshold concepts, the requirement for both active and authentic social constructivist …

The Effect Of Non-Thermal Processing Technologies On Microbial Inactivation: An Investigation Into Sub-Lethal Injury Of Escherichia Coli And Pseudomonas Fluorescens, Rachel Halpin, L. Duffy, O. Cregenzán-Alberti,, J.G Lyng, F. Noci

Articles

In recent years, there has been an increased interest in food processing technologies that could lessen the thermal impact on food products. In the present study, thermosonication (TS) and pulsed electric fields (PEF), applied individually or in combination (TS/PEF), were investigated to determine their effects on inactivation and sub-lethal injury of Pseudomonas fluorescens and Escherichia coli. TS was applied at a low (L) and high (H) wave amplitude (18.6 μm and 27.9 μm, respectively), while PEF was applied at a low and high electrical field strength (29 kV cm⁻¹ and 32 kV cm⁻¹, respectively). In addition, …

An Investigation Of Business Tourism Development: A Case Study Of Wexford Town, Ireland, Gereva Hackett, Detta Melia

Conference papers

The challenging global economic recession continues to affect all business sectors around the world. Wexford town, like any other region is experiencing challenges in this environment. Uncertainly is impacting on bookings and travel. Included in this uncertainty is the fact that a return to recessionary times cannot be ruled out. However, it has been suggested that tourism is the only major sector of the Irish economy that can cheaply and quickly add to growth in the economy (ITIC, 2011; Failte Ireland, 2011; Davidson, 2011; Casey and O’Rourke, 2011). Wexford as a town has been underutilised in terms of its potential …

Legal, Technical, And Economic Challenges In Integrating Renewable Power Generation Into The Electricity Grid, Timothy P. Duane, Kiran H. Griffith

San Diego Journal of Climate & Energy Law

This Article addresses the legal, technical, and economic challenges of integrating high levels of renewable power generation into electrical grid system operation. Part II shows that the primary integration challenge is reducing the total costs of integration and allocating the costs of integration in a hybrid regulatory structure, which presents different institutional impediments than traditional cost-of-service ratemaking or rate-of-return regulation. We demonstrate that the primary impediment to improved integration is a failure to make the critical policy choice about how such costs will be allocated. Part III describes and analyzes the BPA-wind dispute in order to evaluate the adequacy of …

Strategic Project/ Canteen Ireland, Yvonne Feehan

Students Learning with Communities

CanTeen Ireland is an organisation set up to support, empower and develop young people who have or have had cancer between the ages of 12 and 25. Set up in May 1990, the nationwide support group provides members with a place where they can simply be young people, away from the day to day pressures that come with living with cancer in the hospital or at home. Having no dedicated wards in Irish hospitals for teenagers with cancer, CanTeen is an important resource for the country and steps up where the HSE falls down. CanTeen does not rely on the …

Exploring The Use Of Web 2.0 Tools To Support Knowledge Sharing Within The Non-Profit Sector, Christina Shannon

Students Learning with Communities

This project will investigate the challenges of knowledge sharing and communication in non-profit organizations with a high dependence on volunteers. Projects of this type typically rely heavily on the knowledge of the volunteers for success and while many projects have some mechanisms through which they communicate and share knowledge such as a web presence, typically the knowledge is disparate, highly tacit, embedded in the people involved. A scattered approach is typical with knowledge and information on several different forums managed by several different people with no obvious connection. There is unlikely to be a cohesive, coherent approach in place to …

Playing By New Rules: Board Games And America's Cold War Culture, 1945-1965, Matthew John Sprengeler

Dissertations and Theses @ UNI

This thesis examines the domestic culture of the United States during the first two decades of the Cold War, using popular games as an interpretive tool to expand our understanding of the changes that took place. Four board games which were popular during the 1950s – Scrabble, chess, Clue, and Risk – explain some of the anxieties and evolutions in mass culture. Scrabble illustrated the nation's growing respect for expertise and, along with game theory, the hope for intellectual solutions to the country's problems. Chess, often seen as a symbol of the Cold War, served as a proxy battlefield for …

A Study Of The Effect Of Organizational Communication Cultures On Interorganizational Collaboration Of Crisis Response, Laura Pechta

Wayne State University Dissertations

Recent history has indicated that crises are becoming more frequent rather than exceptional events. Dozens of organizations, often with very different missions, methods, technologies and cultures, are called upon to coordinate activities in order to mitigate the crisis and assist in recovery efforts. Although several interorganizational coordination perspectives and strategies have been proposed, they have neglected to examine how different organizational communication cultures of crisis response organizations involved in an Emergency Operations Center (EOC) may affect crisis collaboration efforts. Previous studies have also disregarded the important distinction between crisis coordination and crisis collaboration and the challenges and benefits of each …

An Investigation Into The Role Of Cfia 3' End Processing Complex In The Termination And Initiation/Reinitiation Of Transcription, Nadra Al-Husini

Wayne State University Dissertations

In budding yeast, as in higher eukaryotes, transcription of protein coding genes is executed by a highly specialized, conserved polymerase called RNA polymerase II (RNAPII). The transcription cycle of RNAPII has four major steps: initiation, elongation, termination, and reinitiation. The successful accomplishment of each of these steps requires a number of accessory factors. Many of these factors operate at multiple steps in the transcription cycle. The major focus of this study was to examine the function of Clp1, which is an RNA processing factor operating at the 3′ end of genes, in the transcription cycle. Clp1 is one of the …

Social Support And Health Behaviors, Bryan Michael Kingry

Wayne State University Dissertations

Empirical evidence exists showing a correlation between social support and health behaviors. However, does social support act the same across several health behaviors? The purpose of this study was to determine if social support has an impact across diet, physical activity and smoking in adults. The participants were 2,821 adults over the age of 40 from the National Health and Nutrition Examination Survey (2005-2006, NHANES III). Multiple regression models were used to explore such a correlation. The findings suggest that social support does not act the same across varying health behaviors. The findings also suggest that educational attainment was the …

Formulation Devlopment Of Mesoporous Silica Nanoparticles As An Injectable Delivery System, Amit S. Wani

Wayne State University Dissertations

Our long term goal is to develop a versatile and robust injectable carrier based on Mesoporous Silica Nanoparticles (MSN) for drug/drug combination therapies. The objective of my dissertation was to optimize surface functionality, particle shape and methods of colloidal stabilization of mesoporous silica by PEG for delivery of drug/drug combinations. This was achieved by pursuing the following three aims:

1. Optimize surface functionality of MSN for high drug loading and controlled release

2. Investigate the effect of particle shape and PEGylation on drug delivery in hypoxic tumor cells

3. Develop MSN capable of delivering drug/drug combinations

To investigate the effect …

"I Can't Just Turn Over My Daughter And Let It Be": Black Mothers And The Racial Socialization Of Their Daughters Attending White Schools, Chasity Bailey-Fakhoury

Wayne State University Dissertations

"I CAN'T JUST TURN OVER MY DAUGHTER AND LET IT BE":

BLACK MOTHERS AND THE RACIAL SOCIALIZATION OF THEIR DAUGHTERS ATTENDING WHITE SCHOOLS

by

CHASITY YASHICA BAILEY-FAKHOURY

August 2013

Advisor: Dr. Heather E. Dillaway

Major: Sociology

Degree: Doctor of Philosophy

Studies of parental racial socialization and racial identity development have tended to focus on urban, lower-income African American parents and their adolescent or early adulthood children. Findings emanating from these studies are then extrapolated to all African Americans. Disregarding within group differences produces gaps in our knowledge. This mixed-methods study pushes the research further by investigating the approaches suburban, middle-class …

Pulsed Line Source Response Of A Thin Sheet With High-Contrast Dielectric And Conductive Properties - A Time-Domain Analysis, Adrianus T. De Hoop, Ling Ling Meng, Li (Lijun) Jun Jiang

Electrical and Computer Engineering Faculty Research & Creative Works

A methodology is presented for analytically modeling the reflection and transmission of line-source excited pulsed electromagnetic fields at a thin, planar layer with high-contrast dielectric and conductive properties. Closed-form analytic time-domain expressions are derived for the field components in a 2-D setting via an extension of the Cagniard-DeHoop method. The response to the power exponential source and the power exponential monocycle pulse were studied using the newly proposed method. © 2013 IEEE.

Finite-Width Feed And Load Models, Yat Hei Lo, Li (Lijun) Jun Jiang, Weng Cho Chew

Electrical and Computer Engineering Faculty Research & Creative Works

We demonstrate a new method of applying the feed model for the method of moments (MoM) formulation for the electric field integral equation (EFIE). The model is based around a previously reported magnetic ribbon current model which is accurate and allows for a finite width of the feed port. However, with proper approximations, one can reduce the formulation such that the magnetic field operator can be removed in order to simplify computations arising from the curl of the dyadic Green's function and its singularities. We show here that the new feed model can also be used to model a lumped …

Discussion Of Christine C. Shepard, Vera N. Agostini, Ben Gilmer, Tashya Allen, Jeff Stone, William Brooks And Michael W. Beck. Reply: Evaluating Alternative Future Sea-Level Rise Scenarios, Natural Hazards, 2012 Doi:10.1007/S11069-012-0160-2, A. Boretti

Mechanical and Aerospace Engineering Faculty Research & Creative Works

No abstract provided.

Energy And Spectral Efficient Transmissions Of Coded Arq Systems, Jingxian Wu, Gang Wang, Yahong Rosa Zheng

Electrical and Computer Engineering Faculty Research & Creative Works

Energy efficiency (EE) and spectral efficiency (SE) feature one of the most fundamental tradeoffs in communication systems. In this paper, we propose an optimum transmission scheme for coded Type-I automatic repeat request (ARQ) systems to balance the EE-SE tradeoff. The optimization is performed with respect to a new design metric, the normalized EE (NEE), which is defined as the energy per bit normalized by the SE. Minimizing NEE means either reducing the energy per bit or increasing the SE, it thus yields a balanced tradeoff between the two. The system design incorporates a wide range of practical system parameters, such …

Single-Stranded Dna Scanning And Deamination With Single-Molecule Resolution, Padhuk Gamarala Senavirathne

Wayne State University Dissertations

SINGLE-STRANDED DNA SCANNING AND DEAMINATION WITH SINGLE-MOLECULE RESOLUTION

by

GAYAN SENAVIRATHNE

December 2013

Advisor: Dr. David Rueda & Dr.Ashok Bhagwat

Major: Chemistry (Analytical)

Degree: Doctor of Philosophy

APOBEC3G (Apo3G) and Activation-Induced cytidine Deaminase (AID) are the most notable members of APOBEC enzymes, a family of cytidine (C) deaminases with crucial functions in the immune system. In T cells, Apo3G deaminates C in viral cDNA to halt the replication of HIV 1 strains lacking viral infectivity factor (vif). In B cells, AID is required for the diversification of antibodies through initiation of somatic hypermutation (SHM), and class switch recombination (CSR), by …

Bundo Kanduang: (Hanya) Pemimpin Di Rumah (Gadang), Zainal Arifin

Antropologi Indonesia

Minangkabau ethnic group known is very strictly implement custom of matrilineal. One of these values is male position (sumando) that marginal, because according to matrilineal custom, a man is urang asing (outsiders) in the group of women (wife families). This is expressed through the proverb bak abu diateh tunggua (like ashes on the stump). This position of course is not profitable, so that they have to negotiate with the women to strengthen “the identity of maleness" of them. It shows the politics movement of Minangkaba’s men in an effort to show and strengthen their identity. This political identity of Minangkabau’s …

Method And Apparatus For Adaptive Scatter Correction, Xin Liu, J. Hsieh, X. Wu

Nuclear Engineering and Radiation Science Faculty Research & Creative Works

A CT system includes a rotatable gantry having an opening to receive an object to be scanned, an x-ray source configured to project an x-ray beam toward the object having a primary intensity, a detector configured to detect high frequency electromagnetic energy passing through the object and output imaging data, and a data acquisition system (DAS) connected to the detector and configured to receive the imaging data. The system also includes a computer programmed to obtain image projection data of the object from the DAS, correct the projection data using a scatter function that is based at least on a …

Asia Pacific Perspectives Vol. 11 No. 1, August 2013, University Of San Francisco

Asia Pacific Perspectives

Contents:

Editor's Note by John Nelson and Dayna Barnes

Languages of Human Rights in Timor-Leste by David Webster

This paper examines the historical process by which Timorese embraced the language of human rights, and their transnational support networks as diffusion belts for “rights talk.” It argues for a two-way understanding of rights diffusion, suggesting that Timorese framing of rights have contributed to a global shift towards a wider understanding of human rights as more than simply civil liberties in the Western tradition. Human rights, in other words, is a language that has served the Timorese independence cause, and in turn …

Beyond Fear And Loathing: Tea Party Organizers' Continuum Of Knowledge In A Racialized Social System, Meghan Burke

Scholarship

Making use of fieldwork and 25 open-ended interviews with Tea Party organizers in the state of Illinois, I argue that Tea Party organizers draw from a continuum of knowledge, combining personal knowledge and experience with a conservative corporate media and Tea Party network frame. I draw upon the work of Weber to show how this continuum connects to various types of rational social action. Widening this scope of analysis allows not only for a more complex analysis of how corporate interests are connected to the grass roots movement, but also how the core frames of the movement are located throughout …

Visual-Textual Joint Relevance Learning For Tag-Based Social Image Search, Yue Gao, Meng Wang, Zheng-Jun Zha, Jialie Shen, Xuelong Li, Xindong Wu

Research Collection School Of Computing and Information Systems

With the popularity of social media websites, extensive research efforts have been dedicated to tag-based social image search. Both visual information and tags have been investigated in the research field. However, most existing methods use tags and visual characteristics either separately or sequentially in order to estimate the relevance of images. In this paper, we propose an approach that simultaneously utilizes both visual and textual information to estimate the relevance of user tagged images. The relevance estimation is determined with a hypergraph learning approach. In this method, a social image hypergraph is constructed, where vertices represent images and hyperedges represent …

Valuation Of Participation In Social Gaming, Kwansoo Kim, Byungjoon Yoo, Robert J. Kauffman

Research Collection School Of Computing and Information Systems

This study examines the value of the time that a user spends to participate in a social game. We focus on how a massive multiplayer online role-playing game (MMORPG) vendor can establish prices to encourage participation and retain its players. We estimate value through an application of the hedonic pricing model and analyze a data set for an MMORPG in Korea. The results permit us to estimate the value of game-playing time in monetary terms. Based on our empirical results, we propose an economic model and conduct numerical simulation to show how a game vendor can apply differential pricing in …

Faculty Guidebook, January 2013, Lindenwood University

Employee Handbooks

Information and guidelines for Lindenwood University faculty.