Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2015

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 137521 - 137550 of 146624

Full-Text Articles in Entire DC Network

Mind Mapping: Overcoming Problems Of Writer Identity And Convention For Academic Writing By Student Collaboration, Carmel O'Reilly Jan 2015

Mind Mapping: Overcoming Problems Of Writer Identity And Convention For Academic Writing By Student Collaboration, Carmel O'Reilly

Articles

This article will consider Mind Mapping as an eLearning tool for the enhancement of learning and assessment within the discipline of academic writing. Building on research which relates to the use of Mind Mapping by students of English as a foreign language (EFL), this article will reflect specifically on students taking a module in Applied Writing on a Mature Access Foundation Programme (MAFP), at Institution X. It goes on to explore existing research in order to highlight two key problems student writers have in common: firstly, writer identity and the affective domain of writing and second, the conventions of academic …


The Experiences Of Military Parents Homeschooling Using Online Teaching Resources, Georgia George Watters Jan 2015

The Experiences Of Military Parents Homeschooling Using Online Teaching Resources, Georgia George Watters

Walden Dissertations and Doctoral Studies

U.S. military members and their families relocate from one duty station to another on average once every 3 years. Children in military families change schools often, introducing potential problems such as struggling to make new friends, having trouble adjusting to new teaching styles, and losing academic credits due to the transition from one school to the next. Homeschooling that incorporates online resources can provide instructional continuity, social interaction opportunities, and submission of required periodic assessments. The primary purpose of this phenomenological study was to examine the experiences of military parents involved in homeschooling their children using online resources. The research …


Government Senior Executives' Perceptions Of Brain Drain On Leadership In The United States Virgin Islands, Shurla Jeffers-Knight Jan 2015

Government Senior Executives' Perceptions Of Brain Drain On Leadership In The United States Virgin Islands, Shurla Jeffers-Knight

Walden Dissertations and Doctoral Studies

Highly qualified individuals are leaving the Caribbean and relocating to the United States and other developed countries. Researchers describe this resulting flight of human capital, or brain drain, from the Caribbean as a problem which has no clear definition or immediate solution. This phenomenological study explored perceptions of government senior executives in the United States Virgin Islands (USVI) of the cause and impact of brain drain. Burns' and Bass's transformational and transactional leadership theories were used as the framework for this study. Data were collected through a demographic questionnaire and semistructured interviews with a snowball sample of 10 participants. Data …


Beyond Elections: Ghana's Democracy From The Perspective Of The Citizenry, Ransford Osafo-Danso Jan 2015

Beyond Elections: Ghana's Democracy From The Perspective Of The Citizenry, Ransford Osafo-Danso

Walden Dissertations and Doctoral Studies

Ghana's democracy has been hailed by scholars, practitioners, and the international community in recent years as a shining example in the West African subregion as a result of the country's record of organizing successive elections with minimal or no violence. However, the evaluation of Ghana's democracy has predominantly focused on the elections and disproportionately captures the views of the political elite; conspicuously missing is the perspective of the ordinary Ghanaian. This presents an incomplete picture of Ghana's democracy, given the relevance of citizens' participation in democratic societies. To address this gap in knowledge, this qualitative case study explored the practice …


Exploring The Experiences Of Call Center Employees Regarding Business Scripting, Roman Dzuba Jan 2015

Exploring The Experiences Of Call Center Employees Regarding Business Scripting, Roman Dzuba

Walden Dissertations and Doctoral Studies

Scripting, defined as the mechanization of business processes through automated tools or orchestrated responses, has played a significant role in shaping call center activities and the resultant customer relationship. However, findings of industry research have shown that the use of scripting to maximize operational efficiency has had a disempowering effect on call center employees by lowering their job-skill and knowledge requirements. Grounded in the concepts of knowledge management and knowledge transfer, this study explored the experiences of frontline call center employees on the effects of scripting on customer problem solving. A single-case study design with semistructured interviews was used with …


Risk Factors And Food-Borne Illness: An Analysis Of Restaurant Violations In Georgia, Jovan Harris Jan 2015

Risk Factors And Food-Borne Illness: An Analysis Of Restaurant Violations In Georgia, Jovan Harris

Walden Dissertations and Doctoral Studies

Restaurant managers complete certification in food safety in order to ensure that food is handled and prepared in a manner that decreases risk factors associated with food-borne illness. However, the literature has been inconclusive concerning the connection between manager certification and the incidence of critical food-safety violations. The purpose of this quantitative study was to examine the relationship between the presence or absence of a certified food safety manager (CFSM) and the number of risk factors cited on food inspection reports and the food safety score. In addition, this study was designed to determine whether operation type (i.e., chain vs. …


The Association Of Gender And Socioeconomic Position With Cardiorespiratory Fitness In Adolescents, Quentin Oliphant Jan 2015

The Association Of Gender And Socioeconomic Position With Cardiorespiratory Fitness In Adolescents, Quentin Oliphant

Walden Dissertations and Doctoral Studies

This meta-analysis investigated the association of gender and socioeconomic position with cardiorespiratory fitness in adolescents. Public health professionals know the importance of physical activity level as a modifiable behavior; however, the literature has revealed that more research is needed on the association of sociodemographic variables like gender and socioeconomic position with cardiorespiratory fitness in adolescents. Using the physical fitness and health outcomes conceptual model as a guide, the overall effect sizes across studies were assessed as well as the moderators of study design, sample size, age, and country. A systematic review of literature identified a total of 18 peer-reviewed studies …


Three Studies On Cardiovascular Health: Modifiable Risk Factors And Health Expenditures In Medicare, Kristal Jo Aaron Jan 2015

Three Studies On Cardiovascular Health: Modifiable Risk Factors And Health Expenditures In Medicare, Kristal Jo Aaron

All ETDs from UAB

This dissertation comprises a series of studies conducted on modifiable risk factors as they contribute to cardiovascular health and disease and their associated health service expenditures and utilization. Specific topics in this compilation include (1) exploring the role of dietary sodium and potassium intake in cardiovascular health and disease; (2) examination of direct health expenditures in the Medicare-linked REasons for Geographic And Racial Differences in Stroke (REGARDS) cohort as associated with Life’s Simple 7 (LS7), a composite measure of cardiovascular health defined by the American Heart Association (AHA) that is based on seven modifiable risk factors (blood pressure, blood cholesterol, …


The Regulation Of Vitamin A Metabolism, Mark Adams Jan 2015

The Regulation Of Vitamin A Metabolism, Mark Adams

All ETDs from UAB

Bioactive vitamin A takes form as several molecules, among them all-trans-retinoic acid (RA) is the major form and influences a wide range of biological processes. RA must be synthesized through a two-step mechanism, where all-trans-retinol is first oxidized to all-trans-retinaldehyde by retinol dehydrogenases (RDHs) and retinaldehyde is further oxidized to RA by retinaldehyde dehydrogenases (RALDHs). The first step, retinol to retinaldehyde conversion is the rate limiting step and therefore a likely target of mechanisms that modulate RA synthesis. Despite this, many of the enzymes that are involved in retinol and retinaldehyde interconversion have yet to be identified and thus many …


Competition From New Neurons Drives Circuit Refinement In The Adult Dentate Gyrus, Elena W. Adlaf Jan 2015

Competition From New Neurons Drives Circuit Refinement In The Adult Dentate Gyrus, Elena W. Adlaf

All ETDs from UAB

The hippocampus encodes sensory information into memories. The dentate gyrus (DG) region is viewed as the entry point into the hippocampus, receiving sensory and spatial signals from perforant path axons of the entorhinal cortex (EC). Ever since researchers discovered a neurogenic niche in the subgranular zone (SGZ) of the DG in adult animals and humans, many studies have been aimed at discovering how these continually proliferating granule cells (GCs) contribute to the network. Immature GCs have dendrites that project densely into the molecular layer alongside mature GCs and there is morphological evidence that immature excitatory spines preferentially synapse onto existing …


Pathophysiology And Metabolic Dysfunction Following Polytrauma, Robert Mackay Akscyn Jan 2015

Pathophysiology And Metabolic Dysfunction Following Polytrauma, Robert Mackay Akscyn

All ETDs from UAB

Polytrauma, a combination of injuries to more than one body part or organ system, is common in modern warfare and in automobile and industrial accidents. The combination of injuries can include burn, fracture, hemorrhage, trauma to the extremities, and trauma to specific organ systems. These injuries are highly survivable when occurring singly. However, when they occur in combination the prognosis is worsened. To investigate the effects of combined injuries, we have developed a new and highly reproducible model of polytrauma. This model combines burn injury with soft tissue and gastrointestinal (GI) tract trauma. Male Sprague Dawley rats were subjected to …


Subsurface Parameter Estimation In Oilfield Modeling, Fatin Alawam Jan 2015

Subsurface Parameter Estimation In Oilfield Modeling, Fatin Alawam

All ETDs from UAB

Inverse problems involving partial differential equations have many physical applica- tions. One of the most important applications is in petroleum reservoir modeling. The estimation of petroleum reservoir properties is an essential component in predicting reservoir behavior. Generally, oil and water are present together in petroleum reservoirs and the resulting reservoir model consists of two nonlinear partial differential equations. Much research deals with two phase flow in porous media assuming incompressibility, but a few researchers consider the weakly compressible case which generally applies when the reservoir model does not include a gas phase. In this thesis we assume the weakly compressible …


Regulation Of The Regulatory T Cell-Immunoglobulin A Pathway, Katie Lynn Alexander Jan 2015

Regulation Of The Regulatory T Cell-Immunoglobulin A Pathway, Katie Lynn Alexander

All ETDs from UAB

A dysregulated immune response to the microbiota is a defined characteristic of Crohn's Disease (CD), a type of Inflammatory Bowel Disease (IBD). Understanding how homeo-stasis is maintained in the intestine despite the immense concentration of bacteria present is an active area of research. Regulatory T cells (Tregs) play an important role in mucosal tolerance by controlling inflammation and modulating immune responses initiated by T effector cells (Teffs). Tregs also provide vital survival factors to IgA+ B cells in the intes-tine in order to support Immunoglobulin A (IgA) responses as part of a protective Treg-IgA pathway, which functions to maintain mutualism …


Preparation Of Zirconia For Bonding Following Salivary Contamination, Pattarika Angkasith Jan 2015

Preparation Of Zirconia For Bonding Following Salivary Contamination, Pattarika Angkasith

All ETDs from UAB

Purpose: To determine the best method of cleaning saliva-contaminated zirconia in order to regain its bond strength. Methods: Flat blocks of zirconia were particle-abraded with aluminum oxide and divided into eight groups (n=10). Groups 1-5 were first treated with 1 coat of an MDP-primer (Z-Prime Plus, Bisco) and groups 5-8 were left untreated. All specimens were contaminated with human saliva for 3 minutes other than the control (group 1). The specimens were then cleaned by rinsing with water for 20 sec (groups 2 and 5), cleaning with 35% phosphoric acid for 20 sec and rinsing (group 3 and 6), cleaning …


Transient-State Kinetic Analysis Of The Rna Polymerase I Nucleotide Incorporation Mechanism, Francis Dean Appling Jan 2015

Transient-State Kinetic Analysis Of The Rna Polymerase I Nucleotide Incorporation Mechanism, Francis Dean Appling

All ETDs from UAB

The diversity of enzymes and the reactions which they catalyze is enormous. Careful study of enzymatic reaction mechanisms has taught us a great deal about chemical reactivity and has given us insight into the chemical and physical basis of life. One particularly ubiquitous class of enzymes, the RNA polymerases, are expressed in all forms of life. RNA polymerases are central components of nucleic acid metabolism and display a variety of distinctive enzymatic features; two points which solicit their thorough study. The central theme of this dissertation is the use of kinetic techniques to describe enzymatic reaction mechanisms. Although the main …


Assessment Of Streams And Aquatic Organisms In The Vicinity Of Birmingham, Alabama For The Presence And Biological Activity Of Endocrine-Disrupting Chemicals, Bryan Stuart Arwood Jan 2015

Assessment Of Streams And Aquatic Organisms In The Vicinity Of Birmingham, Alabama For The Presence And Biological Activity Of Endocrine-Disrupting Chemicals, Bryan Stuart Arwood

All ETDs from UAB

Freshwater ecosystems play a central role in the environment. Through various processes such as nutrient recycling, groundwater recharging, and the attenuation of many pollutants these biological systems help to maintain environmental health. Unfortunately, many recent studies have identified emerging threats to these special environments and the life they sustain. One source of mounting concern is a group of compounds that interact with the endocrine systems of humans and wildlife. Known as endocrine disrupting chemicals (EDCs), these natural and synthetic chemicals may mimic or interfere with the action of natural hormones—thus disrupting the endocrine system. Multiple studies have reported negative effects …


Why Collegiate Athletes Could Have The Ncaa, Et Al. Singing A Different Tune, Amber Jorgensen Jan 2015

Why Collegiate Athletes Could Have The Ncaa, Et Al. Singing A Different Tune, Amber Jorgensen

Cardozo Arts & Entertainment Law Journal

No abstract provided.


Treating The Disease: A First Amendment Prescription For The U.S. Patent System, Stephanie A. Diehl Jan 2015

Treating The Disease: A First Amendment Prescription For The U.S. Patent System, Stephanie A. Diehl

Cardozo Arts & Entertainment Law Journal

No abstract provided.


The Myth Of Obsolete Obscenity, Jennifer M. Kinsley Jan 2015

The Myth Of Obsolete Obscenity, Jennifer M. Kinsley

Cardozo Arts & Entertainment Law Journal

No abstract provided.


Impact Of Altitude On Power Output During Cycling Stage Racing, Laura A. Garvican-Lewis, Bradley Clark, David T. Martin, Yorck O. Schumacher, Warren Mcdonald, Brian Stephens, Fuhai Ma, Kevin G. Thompson, Christopher J. Gore, Paolo Mensaspa Jan 2015

Impact Of Altitude On Power Output During Cycling Stage Racing, Laura A. Garvican-Lewis, Bradley Clark, David T. Martin, Yorck O. Schumacher, Warren Mcdonald, Brian Stephens, Fuhai Ma, Kevin G. Thompson, Christopher J. Gore, Paolo Mensaspa

Research outputs 2014 to 2021

Purpose The purpose of this study was to quantify the effects of moderate-high altitude on power output, cadence, speed and heart rate during a multi-day cycling tour. Methods Power output, heart rate, speed and cadence were collected from elite male road cyclists during maximal efforts of 5, 15, 30, 60, 240 and 600 s. The efforts were completed in a laboratory power-profile assessment, and spontaneously during a cycling race simulation near sea-level and an international cycling race at moderate-high altitude. Matched data from the laboratory power-profile and the highest maximal mean power output (MMP) and corresponding speed and heart rate …


The Relationship Between The Halosperm Assay And Semen Analysis Performed According To The 4th And 5th Editions Of The World Health Organization Guidelines, Ashleigh Mcevoy, Peter Roberts, Kailin Yap, Phillip L. Matson Jan 2015

The Relationship Between The Halosperm Assay And Semen Analysis Performed According To The 4th And 5th Editions Of The World Health Organization Guidelines, Ashleigh Mcevoy, Peter Roberts, Kailin Yap, Phillip L. Matson

Research outputs 2014 to 2021

Background: As a standard reference to evaluate male factor infertility, the majority of fertility laboratories use the 4th or 5th Editions of the World Health Organization’s semen analysis guidelines. Following the release of the 5th Edition, debate over its legitimacy has resulted in some laboratories using the 4th and others the 5th Edition. DNA integrity tests have been shown to be a valuable adjunct to semen analysis and have subsequently been adopted by many fertility laboratories. This study explored the prevalence of samples with high DNA fragmentation levels according to semen analysis categories using both the 4th and the 5th …


Chinese Nursing Students' Culture-Related Learning Styles And Behaviours: A Discussion Paper, Carol C. Wang, Kenneth M. Greenwood Jan 2015

Chinese Nursing Students' Culture-Related Learning Styles And Behaviours: A Discussion Paper, Carol C. Wang, Kenneth M. Greenwood

Research outputs 2014 to 2021

Globalisation requires that nursing education focuses on culturally competent care. International students studying in Australia present a valuable resource for cultural learning, yet internationalisation presents opportunities and challenges for both lecturers and students. This paper explores Chinese nursing students, the single largest group of international students in Australia, their communication behaviour, patterns and learning styles at Australian universities from cultural and psychosocial perspectives. Our aim is to provide insight for educators in Western countries to better understand this particular ethnic group and help Chinese nursing students overcome learning difficulties and develop their potential learning capabilities. We further recommend coping strategies …


Global Measures Of Gender Empowerment: A Case Study Of Sri Lankan Export Processing Zone (Epz) Workers, Peter Hancock, Sharon Middleton Jan 2015

Global Measures Of Gender Empowerment: A Case Study Of Sri Lankan Export Processing Zone (Epz) Workers, Peter Hancock, Sharon Middleton

Research outputs 2014 to 2021

This pape r focuses on global measures of gender empowerment released a n- nually by the UNDP and the World Economic Forum. It discusses and critiques these measures on a global level and juxtaposes this analysis against research conducted among women who work in Sri Lanka's Export Processing Zones (EPZs). Global measures of gender equality show that in Sri Lanka gender-based inequality is increasing, despite the nation dramatically improving its economy and poverty levels and meeting some of the Millennium Development Goals. To explain this contradiction, we sampled 2,304 women to explore how they experienced gender and empowerment and to …


Learning As It Goes Down The Line: Siblings And Family Networked In The Acquisition Of Online Skills, Kylie J. Stevenson, Lelia Green, Leslie Haddon Jan 2015

Learning As It Goes Down The Line: Siblings And Family Networked In The Acquisition Of Online Skills, Kylie J. Stevenson, Lelia Green, Leslie Haddon

Research outputs 2014 to 2021

The Parents and Peers project set out to investigate key influences of peers and parents on the online experiences of young people aged 13 - 17. Specifically, the project sought to explore the family constructions of learning, support and management systems that operate in the informal context of the domestic space of the family home (Silverstone & Haddon 1996). It became apparent through interviewing several sets of older siblings that there was benefit in interviewing a wider age range of siblings who were engaged in online activity within individual families. Therefore, the interview participants’ age range was extended to age …


Efficiency Of A Combined Desalination And Power System Utilising A Multi-Stream Heat Exchange, Alireza Hosseini Araghi, Mehdi Khiadani, Gordon Lucas Jan 2015

Efficiency Of A Combined Desalination And Power System Utilising A Multi-Stream Heat Exchange, Alireza Hosseini Araghi, Mehdi Khiadani, Gordon Lucas

Research outputs 2014 to 2021

The aim of this study is to simplify the process of Discharge Thermal Energy Combined Desalination (DTECD) with Power System by integrating the two existing heat exchangers (condensers) into a new multi-stream one. This system is a heat recovery unit, which is used to cogenerate water and power. Two shell & tube condensers operate in a closed power cycle and a desalination system for cooling an ammonia mixture (70% wt.) as a working fluid and condensing a pure vapor respectively. Here, a multi-stream plate condenser is utilized instead of the two low exergy efficiency shell & tube condensers. The results …


Framing Overdiagnosis In Breast Screening: A Qualitative Study With Australian Experts, Lisa M. Parker, Lucie Rychetnik, Stacy Carter Jan 2015

Framing Overdiagnosis In Breast Screening: A Qualitative Study With Australian Experts, Lisa M. Parker, Lucie Rychetnik, Stacy Carter

Medical Papers and Journal Articles

Background: The purpose of this study was to identify how the topic of overdiagnosis in breast cancer screening is framed by experts and to clarify differences and similarities within these frames in terms of problems, causes, values and solutions.

Methods: We used a qualitative methodology using interviews with breast screening experts across Australia and applying framing theory to map and analyse their views about overdiagnosis. We interviewed 33 breast screening experts who influence the public and/or policy makers via one or more of: public or academic commentary; senior service management; government advisory bodies; professional committees; non-government/consumer organisations. Experts were currently …


Mechanisms Contributing To Differential Regulation Of Pax3 Downstream Target Genes In Normal Human Epidermal Melanocytes Versus Melanoma Cells, Danielle Bartlett, Glen M. Boyle, Mel Ziman, Sandra Medic Jan 2015

Mechanisms Contributing To Differential Regulation Of Pax3 Downstream Target Genes In Normal Human Epidermal Melanocytes Versus Melanoma Cells, Danielle Bartlett, Glen M. Boyle, Mel Ziman, Sandra Medic

Research outputs 2014 to 2021

Melanoma is a highly aggressive and drug resistant form of skin cancer. It arises from melanocytes, the pigment producing cells of the skin. The formation of these melanocytes is driven by the transcription factor PAX3 early during embryonic development. As a result of alternative splicing, the PAX3 gene gives rise to eight different transcripts which encode isoforms that have different structures and activate different downstream target genes involved in pathways of cell proliferation, migration, differentiation and survival. Furthermore, posttranslational modifications have also been shown to alter the functions of PAX3.We previously identified PAX3 downstream target genes in melanocytes and melanoma …


Frequency Of Metabolic Syndrome In Psychiatric Patients, Is This The Time To Develop A Standardized Protocol To Reduce The Morbidity From An Acute Care Psychiatry Unit., Tariq Munshi, Archana Patel, Mir Nadeem Mazhar, Emaduddin Siddiqui Jan 2015

Frequency Of Metabolic Syndrome In Psychiatric Patients, Is This The Time To Develop A Standardized Protocol To Reduce The Morbidity From An Acute Care Psychiatry Unit., Tariq Munshi, Archana Patel, Mir Nadeem Mazhar, Emaduddin Siddiqui

Department of Emergency Medicine

OBJECTIVE:

To determine the frequency of Metabolic Syndrome among psychiatric patients and to look for the correlation between the two medical conditions.

METHODS:

The cross-sectional study was conducted from February to April 2013 at the acute care psychiatry in-patient unit at Kingston General Hospital, Ontario, Canada, and comprised adult patients of both genders diagnosed under the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition. For Metabolic Syndrome, definitions outlined by the International Diabetes Federation were used. The patients were divided into two groups on the basis of presence or absence of the Syndrome and were compared for clinical and …


Is There An Economic Case For Investing In Nursing Care – What Does The Literature Tell Us?, Diane E. Twigg, Helen Myers, Christine Duffield, Margaret Giles, Gemma Evans Jan 2015

Is There An Economic Case For Investing In Nursing Care – What Does The Literature Tell Us?, Diane E. Twigg, Helen Myers, Christine Duffield, Margaret Giles, Gemma Evans

Research outputs 2014 to 2021

Aim

To determine the cost effectiveness of increasing nurse staffing or changing the nursing skill mix in adult medical and/or surgical patients?

Background

Research has demonstrated that nurse staffing levels and skill mix are associated with patient outcomes in acute care settings. If increased nurse staffing levels or richer skill mix can be shown to be cost-effective hospitals may be more likely to consider these aspects when making staffing decisions.

Design

A systematic review of the literature on economic evaluations of nurse staffing and patient outcomes was conducted to see whether there is consensus that increasing nursing hours/skill mix is …


Effects Of Estrogens On Adipokines And Glucose Homeostasis In Female Aromatase Knockout Mice, Michelle L. Van Sinderen, Gregory R. Steinberg, Sebastian B. Jørgensen, Jane Honeyman, Jenny D. Chow, Kerrie A. Herridge, Amy L. Winship, Evdokia Dimitriadis, Margaret E.E. Jones, Evan R. Simpson, Wah C. Boon Jan 2015

Effects Of Estrogens On Adipokines And Glucose Homeostasis In Female Aromatase Knockout Mice, Michelle L. Van Sinderen, Gregory R. Steinberg, Sebastian B. Jørgensen, Jane Honeyman, Jenny D. Chow, Kerrie A. Herridge, Amy L. Winship, Evdokia Dimitriadis, Margaret E.E. Jones, Evan R. Simpson, Wah C. Boon

Research outputs 2014 to 2021

The maintenance of glucose homeostasis within the body is crucial for constant and precise performance of energy balance and is sustained by a number of peripheral organs. Estrogens are known to play a role in the maintenance of glucose homeostasis. Aromatase knockout (ArKO) mice are estrogen-deficient and display symptoms of dysregulated glucose metabolism. We aim to investigate the effects of estrogen ablation and exogenous estrogen administration on glucose homeostasis regulation. Six month-old female wildtype, ArKO, and 17β-estradiol (E2) treated ArKO mice were subjected to whole body tolerance tests, serum examination of estrogen, glucose and insulin, ex-vivo muscle glucose uptake, and …