Digital Commons Network^™

Fedoram: A Federated Oblivious Ram Scheme, Alexandre Pujol, Liam Murphy, Christina Thorpe

Articles

Instant messaging (IM) applications, even with end-to-end encryption enabled, pose privacy issues due to metadata and pattern leakage. Our goal is to develop a model for a privacy preserving IM application, by designing an IM application that focuses on hiding metadata and discussion patterns. To solve the issue of privacy preservation through the obfuscation of metadata, cryptographic constructions like Oblivious Random Access Machines (ORAM) have been proposed in recent years. However, although they completely hide the user access patterns, they incur high computational costs, often resulting in excessively slow performance in practice. We propose a new federated model, FedORAM, which …

Correction: Bruchlinien Der Inklusion, Justin A. Haegele, Martin Giese, Wesley J. Wilson, Felix Oldörp

Human Movement Studies & Special Education Faculty Publications

No abstract provided.

Supreme Court Precedent And The Politics Of Repudiation, Robert L. Tsai

Faculty Scholarship

This is an invited essay that will appear in a book titled "Law's Infamy," edited by Austin Sarat as part of the Amherst Series on Law, Jurisprudence, and Social Thought. Every legal order that aspires to be called just is held together by not only principles of justice but also archetypes of morally reprehensible outcomes, and villains as well as heroes. Chief Justice Roger Taney, who believed himself to be a hero solving the great moral question of slavery in the Dred Scott case, is today detested for trying to impose a racist, slaveholding vision of the Constitution upon America. …

A Duty Of Loyalty For Privacy Law, Neil M. Richards, Woodrow Hartzog

Faculty Scholarship

Data privacy law fails to stop companies from engaging in self-serving, opportunistic behavior at the expense of those who trust them with their data. This is a problem. Modern tech companies are so entrenched in our lives and have so much control over what we see and click that the self-dealing exploitation of people has become a major element of the internet’s business model.

Academics and policymakers have recently proposed a possible solution: require those entrusted with people’s data and online experiences to be loyal to those who trust them. But many have concerns about a duty of loyalty. What, …

(Hypothetical) Communication In (Hypothetical) Context, Gary S. Lawson

Faculty Scholarship

This article is from the "Multimember Legislative Bodies and Intended Meaning" portion of a Symposium on Two Problems of Group Authorship. This essay is a response to the the two questions addressed at the symposium. These questions have been attached as an additional file to this submission. It is recommended that those questions be read before reading Lawson's response.

Copyright And Parody: Touring The Certainties Of Intellectual Property And Restitution, Wendy J. Gordon

Faculty Scholarship

The essay that follows examines the boundary between two sets of rules. The first set arises under the law of Restitution, particularly the rule that volunteers ordinarily need not be rewarded. (Another way to state this same Restitution rule is to say that the retention of benefit voluntarily conferred is ordinarily not "unjust enrichment".) The second set of rules are those of Intellectual Property law, which creates property in a special kind of volunteer. My argument is simply that the law of Restitution leads almost directly to the law of Intellectual Property, though the two areas are premised on diametrically …

"...And After That Came Me". Subjective Constructions Of Social Hierarchy In Physical Education Classes Among Youth With Visual Impairments In Germany, Martin Giese, Sebastian Ruin, Jana Baumgärtner, Justin A. Haegele

Human Movement Studies & Special Education Faculty Publications

The aim of this study was to reconstruct subjective constructions of experiences in PE and feelings of being valued within PE classes in Germany by students with visual impairment (VI). Two female and two male students (average age: 19.25 years) participated in the study from the upper level. For the reconstruction of experiences of feeling valued, episodic interviews with a semi-structured interview guide were used. The data analysis was conducted with MAXQDA 2020 based on content-related structuring of qualitative text analysis with deductive-inductive category formation. To structure the analysis, the main category, feelings of being valued, was defined by two …

Air Pollution And Outdoor Recreation On Urban Trails: A Case Study Of The Elizabeth River Trail, Norfolk, James E. Mccann, Chris A.B. Zajchowski, Eddie L. Hill, Xihe Zhu

Human Movement Studies & Special Education Faculty Publications

Poor air quality represents a significant health risk for individuals engaging in recreation activities outdoors in urban parks and trails. This study investigated temporal variability in particulate matter (PM) exposure along an urban waterfront trail. We also used recreation choice frameworks to examine the effects of visitors’ perceptions of air quality (AQ) and health benefits on trail use. Average air quality during the collection period was “good” (PM₁₀) to “moderate” (PM_2.5). We found that PM density was significantly higher (p < 0.001), though still in the “moderate” range, at 7–9 a.m., 11 a.m.–1 p.m., and 3–5 p.m., and on weekends. Visitors’ self-reported perceptions of health outcomes, but not air quality, significantly predicted trail use. Results suggest that these experiential factors may affect recreational choices depending on other factors, such as salience. Further research is merited to determine how experiential factors can be integrated with other theories of motivation to understand recreational decision-making.

Being Needed, Cared For, And Present: Belonging And Disability In The Seventh-Day Adventist Church In North America, Shannon M. Trecartin, Mikelle Wile, Terrance P. Trecartin, Petr Činčala

Faculty Publications

Many Christian churches seek to be places of belonging, yet present barriers to inclusion. The present research focuses on disability and belonging in members of the Seventh-day Adventist (SDA) Church in North America. Data from the SDA Global Church Survey (2017–2018) were used to measure attendance, perceived care, and sense of being needed. Results: Differences in attendance, leadership, and “feeling cared for” were observed. The findings of this study suggest that the SDA Church has had both successes and room for growth in terms of creating opportunities for belonging among people with disabilities. Implications for other denominations are also discussed.

Building A Culture Of Trust: An Imperative For Effective School Leadership, Rodney A. Palmer

Faculty Publications

No abstract provided.

Seventh-Day Adventists And Abolitionist Petitions, Kevin M. Burton

Faculty Publications

No abstract provided.

Does Accurate Data, Identifying Obese Patients Impact Nurse Safety And Hospital Finances?, Kim Mcclean

Theses: Doctorates and Masters

Healthcare staff who manage obese patients are at increased risk of sustaining patient handling injuries, and this risk is anticipated to intensify as projected Australian obesity rates increase to 42% by the year 2035 and obese patients admitted to hospitals also increase. High cost burdens to healthcare organisations will result due to increased funding requirements for bariatric risk management solutions and growing costs of workers’ compensation claims of injured staff. Five (5) studies explored if identification of obese patients impacts the safety of nurses and other healthcare staff who manage obese patients and investigated the accuracy of obesity data recorded …

Co2 – Brine – Sandstone Wettability Evaluation At Reservoir Conditions Via Nuclear Magnetic Resonance Measurements, Auby Baban, Ahmed Al-Yaseri, Alireza Keshavarz, R. Amin, Stefan Iglauer

Research outputs 2014 to 2021

CO₂-rock wettability is a key parameter which governs CO₂ trapping capacities and containment security in the context of CO₂ geo-sequestration schemes. However, significant uncertainties still exist in terms of predicting CO₂ rock wettability at true reservoir conditions. This study thus reports on wettability measurements via independent Nuclear Magnetic Resonance (NMR) experiments on sandstone (CO₂–brine systems) to quantify Wettability Indices (WI) using the United States Bureau of Mines (USBM) scale. The results show that CO₂ (either molecularly dissolved or as a separate supercritical phase) significantly reduced the hydrophilicity of the sandstone from strongly …

Usability, Acceptability, And Safety Analysis Of A Computer-Tailored Web-Based Exercise Intervention (Exerciseguide) For Individuals With Metastatic Prostate Cancer: Multi-Methods Laboratory-Based Study, Holly E. L. Evans, Cynthia C. Forbes, Daniel A. Galvão, Corneel Vandelanotte, Robert U. Newton, Gary Wittert, Suzanne Chambers, Andrew D. Vincent, Ganessan Kichenadasse, Danielle Girard, Nicholas Brook, Camille E. Short

Research outputs 2014 to 2021

Background:

Digital health interventions such as tailored websites are emerging as valuable tools to provide individualized exercise and behavioral change information for individuals diagnosed with cancer.

Objective:

The aim of this study is to investigate and iteratively refine the acceptability and usability of a web-based exercise intervention (ExerciseGuide) for men with metastatic prostate cancer and determine how well individuals can replicate the video-based exercise prescription.

Methods:

A laboratory-based multi-methods design was used, incorporating questionnaires, think-aloud tests, interviews, and movement screening among 11 men aged 63 to 82 years with metastatic prostate cancer. Overall, 9 participants were undergoing androgen deprivation therapy, …

The Role Of Acceptance And Commitment Therapy In Cardiovascular And Diabetes Healthcare: A Scoping Review, Amineh Rashidi, Lisa Whitehead, Lisa Newson, Felicity Astin, Paramjit Gill, Deirdre A. Lane, Gregory Y. H. Lip, Lis Neubeck, Chantal F. Ski, David R. Thompson, Helen Walthall, Ian D. Jones

Research outputs 2014 to 2021

Acceptance and commitment therapy (ACT) is an adapted form of cognitive behavioural therapy. ACT focuses on how thinking affects behaviour and promotes psychological flexibility. The prevalence of psychological distress among people living with cardiovascular disease (CVD) and/or type 2 diabetes mellitus (T2DM) is high, and ACT may offer an alternative treatment approach. This scoping review explored the use of ACT as an intervention to support adults living with CVD and/or T2DM. A systematic search of the literature resulted in the inclusion of 15 studies. Studies were reviewed using the Joanna Briggs Institute approach to conducting scoping reviews. Most studies (n …

Trading Macro-Cycles Of Foreign Exchange Markets Using Hybrid Models, Joseph Z. B. Ling, Albert K. Tsui, Zhaoyong Zhang Prof

Research outputs 2014 to 2021

Most existing studies on forecasting exchange rates focus on predicting next-period returns. In contrast, this study takes the novel approach of forecasting and trading the longer-term trends (macro-cycles) of exchange rates. It proposes a unique hybrid forecast model consisting of linear regression, multilayer neural network, and combination models embedded with technical trading rules and economic fundamentals to predict the macro-cycles of the selected currencies and investigate the predicative power and market timing ability of the model. The results confirm that the combination model has a significant predictive power and market timing ability, and outperforms the benchmark models in terms of …

Development And Validation Of The Holistic Cognition Scale, Andrei A. Lux, Steven L. Grover, Stephen T. Teo

Research outputs 2014 to 2021

This paper introduces a new scale to measure cognitive cultural differences, drawing on the theory of analytic versus holistic thought. Examining culture from a cognitive perspective is a challenge to traditional values-based approaches. Existing measures based on this framework are methodologically problematic and warrant renewal. This paper presents development and validation studies for a new instrument that measures analytic versus holistic cognitive tendencies at the individual level. The scale assesses four previously established dimensions: attention, causality, contradiction, and change. The present work follows well-established scale development protocols and the results show that the 16-item Holistic Cognition Scale (HCS) is a …

Evidence Of Large Increases In Sedimentation Rates Due To Fish Trawling In Submarine Canyons Of The Gulf Of Palermo (Sw Mediterranean), Sarah Paradis, Claudio Lo Iacono, Pere Masqué, Pere Puig, Albert Palanques, Tommaso Russo, The Island Cruise Tem

Research outputs 2014 to 2021

Bottom trawling in submarine canyons can affect their natural sedimentation rates, but studies addressing this issue are still scarce. In the Gulf of Palermo (SW Mediterranean), bottom trawling occurs on the slope around Oreto, Arenella and Eleuterio canyons. Analyses of excess 210Pb concentrations and grain size fractions in sediment cores from their canyon axes revealed that sedimentation rates and silt contents increased in all canyons in the 1980s, due to the expansion of more powerful trawlers ( > 500 HP) to deeper fishing grounds. In Eleuterio and Arenella canyons, sedimentation rates increased by an order of magnitude (0.1-1.4 cm·yr-1), whereas they …

A Review Of Security Standards And Frameworks For Iot-Based Smart Environments, Nickson M. Karie, Nor Masri Sahri, Wencheng Yang, Craig Valli, Victor R. Kebande

Research outputs 2014 to 2021

Assessing the security of IoT-based smart environments such as smart homes and smart cities is becoming fundamentally essential to implementing the correct control measures and effectively reducing security threats and risks brought about by deploying IoT-based smart technologies. The problem, however, is in finding security standards and assessment frameworks that best meets the security requirements as well as comprehensively assesses and exposes the security posture of IoT-based smart environments. To explore this gap, this paper presents a review of existing security standards and assessment frameworks which also includes several NIST special publications on security techniques highlighting their primary areas of …

Proteome And Nutritional Shifts Observed In Hordein Double-Mutant Barley Lines, Utpal Bose, Angéla Juhász, Ronald Yu, Mahya Bahmani, Keren Byrne, Malcolm Blundell, James A. Broadbent, Crispin A. Howitt, Michelle L. Colgrave

Research outputs 2014 to 2021

Lysine is the most limiting essential amino acid in cereals, and efforts have been made over the decades to improve the nutritional quality of these grains by limiting storage protein accumulation and increasing lysine content, while maintaining desired agronomic traits. The single lys3 mutation in barley has been shown to significantly increase lysine content but also reduces grain size. Herein, the regulatory effect of the lys3 mutation that controls storage protein accumulation as well as a plethora of critically important processes in cereal seeds was investigated in double mutant barley lines. This was enabled through the generation of three hordein …

Biometrics For Internet‐Of‐Things Security: A Review, Wencheng Yang, Song Wang, Nor Masri Sahri, Nickson M. Karie, Mohiuddin Ahmed, Craig Valli

Research outputs 2014 to 2021

The large number of Internet‐of‐Things (IoT) devices that need interaction between smart devices and consumers makes security critical to an IoT environment. Biometrics offers an interesting window of opportunity to improve the usability and security of IoT and can play a significant role in securing a wide range of emerging IoT devices to address security challenges. The purpose of this review is to provide a comprehensive survey on the current biometrics research in IoT security, especially focusing on two important aspects, authentication and encryption. Regarding authentication, contemporary biometric‐based authentication systems for IoT are discussed and classified based on different biometric …

Kinematic And Neuromuscular Measures Of Intensity During Drop Jumps In Female Volleyball Players, Maximiliano Torres-Banduc, Rodrigo Ramirez-Campillo, David Cristobal Andrade, Julio Calleja-González, Pantelis Theo Nikolaidis, John J. Mcmahon, Paul Comfort

Research outputs 2014 to 2021

The aim of this study was to assess drop jump (DJ) performance variables (jump height, contact time, and reactive strength index) concomitant to surface electromyography (sEMG) of lower limb muscles during DJs from different drop heights (intensities). The eccentric and concentric phase sEMG from the gastrocnemius medialis, biceps femoris, and vastus medialis muscles were assessed during all tests, with sEMG activity normalized to maximal voluntary isometric contraction (MVIC). In a cross-sectional, study, 10 amateur female volleyball players (age 22.1 ± 1.8 years; body mass 72.9 ± 15.2 kg; height 1.70 ± 0.08 m) completed DJs from six heights [15-90 cm …

Pattern And Degree Of Individual Brain Atrophy Predicts Dementia Onset In Dominantly Inherited Alzheimer's Disease, Ophir Keret, Adam M. Staffaroni, John M. Ringman, Yann Cobigo, Sheng-Yang M. Goh, Amy Wolf, Isabel Elaine Allen, Stephen Salloway, Jasmeer Chhatwal, Adam M. Brickman, Dolly Reyes-Dumeyer, Randal J. Bateman, Tammie L.S. Benzinger, John C. Morris, Beau M. Ances, Nelly Joeseph-Mathurin, Richard J. Perrin, Brian A. Gordon, Johannes Levin, Jonathan Voglein, Mathias Jucker, Christian La Fougere, Ralph N. Martins, Hamid R. Sohrabi, Kevin Taddei, Victor L. Villemagne, Peter R. Schofield, William S. Brooks, Michael Fulham, Colin L. Masters, Bernardino Ghetti, Andrew J. Saykin, Clifford R. Jack, Neill R. Graff-Radford, Michael Weiner, David M. Cash, Ricardo F. Allegri, Patricio Chrem, Su Yi, Bruce L. Miller, Gil D. Rabinovici, Howard J. Rosen, Dominantly Inherited Alzheimer Network

Research outputs 2014 to 2021

Introduction: Asymptomatic and mildly symptomatic dominantly inherited Alzheimer's disease mutation carriers (DIAD-MC) are ideal candidates for preventative treatment trials aimed at delaying or preventing dementia onset. Brain atrophy is an early feature of DIAD-MC and could help predict risk for dementia during trial enrollment. Methods: We created a dementia risk score by entering standardized gray-matter volumes from 231 DIAD-MC into a logistic regression to classify participants with and without dementia. The score's predictive utility was assessed using Cox models and receiver operating curves on a separate group of 65 DIAD-MC followed longitudinally. Results: Our risk score separated asymptomatic versus demented …

A Delirium Prevalence Audit And A Pre And Post Evaluation Of An Interprofessional Education Intervention To Increase Staff Knowledge About Delirium In Older Adults, Bev Ewens, Karla Seaman, Lisa Whitehead, Mandy Towell-Barnard, Michelle Young

Research outputs 2014 to 2021

Background

Delirium is more prevalent in older people and estimated to occur in up to 50% of the hospital population. Delirium comprises a spectrum of behaviours, including cognitive and attention deficits, and fluctuating levels of consciousness, often associated with an underlying physiological disturbance. Delirium has been increasingly associated with adverse outcomes. Although often preventable or can at least be mitigated, delirium may not be a standard part of assessment and thus may not be recognized in the early stages when it is most likely to be treated successfully. The aim of this study was to evaluate the level of knowledge …

Toward Open Research: A Narrative Review Of The Challenges And Opportunities For Open Humanities, Paul L. Arthur, Lydia A. Hearn

Research outputs 2014 to 2021

Open research represents a new set of principles and methodologies for greater cooperation, transparent sharing of findings, and access to and re-use of research data, materials or outputs, making knowledge more freely available to wider audiences for societal benefit. Yet, the future success of the international move toward open research will be dependent on key stakeholders addressing current barriers to increase uptake, effectiveness, and sustainability. This article builds on “An Agenda for Open Science in Communication,” raising dialog around the need for a broader view of open research as opposed to open science through a deeper understanding of specific challenges …

Heritability Enrichment Of Immunoglobulin G N-Glycosylation In Specific Tissues, Xingang Li, Hao Wang, Yahong Zhu, Weijie Cao, Song Manshu, Youxin Wang, Haifeng Hou, Minglin Lang, Xiuhua Guo, Xuerui Tan, Jingdong J. Han, Wei Wang

Research outputs 2014 to 2021

Genome-wide association studies (GWAS) have identified over 60 genetic loci associated with immunoglobulin G (IgG) N-glycosylation; however, the causal genes and their abundance in relevant tissues are uncertain. Leveraging data from GWAS summary statistics for 8,090 Europeans, and large-scale expression quantitative trait loci (eQTL) data from the genotype-tissue expression of 53 types of tissues (GTEx v7), we derived a linkage disequilibrium score for the specific expression of genes (LDSC-SEG) and conducted a transcriptome-wide association study (TWAS). We identified 55 gene associations whose predicted levels of expression were significantly associated with IgG N-glycosylation in 14 tissues. Three working scenarios, i.e., tissue-specific, …

Organizational Factors Associated With Health Worker Protection During The Covid-19 Pandemic In Four Provinces Of South Africa, Muzimkhulu Zungu, Kuku Voyi, Nosimilo Mlangeni, Saiendhra Vasudevan Moodley, Jonathan Ramodike, Nico Claassen, Elizabeth Wilcox, Nkululeko Thunzi, Annalee Yassi, Jerry Spiegel, Molebogeng Malotle

Research outputs 2014 to 2021

Background: Health workers, in short supply in many low-and-middle-income countries, are at increased risk of SARS-CoV-2 infection. This study aimed to assess how South Africa, prepared to protect its health workers from SARS-CoV-2 infection. Methods: This was a cross-sectional study design applying participatory action research in four provinces of South Africa. A semi-structured questionnaire and a qualitative observational HealthWISE walkthrough risk assessment was carried out to collect data on occupational safety and health (OSH) systems in 45 hospitals across four provinces to identify factors associated with health worker protection. Adapting the International Labour Organization (ILO) and World Health Organization (WHO) …

Environmental Gradients And Physical Barriers Drive The Basin-Wide Spatial Structuring Of Mediterranean Sea And Adjacent Eastern Atlantic Ocean Prokaryotic Communities, Marta Sebastián, Eva Ortega-Retuerta, Laura Gómez-Consarnau, Marina Zamanillo, Marta Álvarez, Javier Arístegui, Josep M. Gasol

Research outputs 2014 to 2021

The Mediterranean Sea is a miniature ocean divided by the Sicily Strait into two basins with a marked west to east trophic gradient and separated of the nearby eastern Atlantic Ocean by the Strait of Gibraltar. Here, we test the hypothesis that these physical and environmental barriers favor the development of specific prokaryotic assemblages, leading to changes in community structure both in the vertical and horizontal spatial scales. By analyzing taxonomic and phylogenetic diversity using amplicon sequence variants (ASVs) of the 16S rRNA gene, we show that there is indeed marked vertical segregation of prokaryotic groups, similar to that found …

Prediction Of Mean Wave Overtopping At Simple Sloped Breakwaters Using Kernel-Based Methods, Shabnam Hosseinzadeh, Amir Etemad-Shahidi, Ali Koosheh

Research outputs 2014 to 2021

The accurate prediction of the mean wave overtopping rate at breakwaters is vital for a safe design. Hence, providing a robust tool as a preliminary estimator can be useful for practitioners. Recently, soft computing tools such as artificial neural networks (ANN) have been developed as alternatives to traditional overtopping formulae. The goal of this paper is to assess the capabilities of two kernel-based methods, namely Gaussian process regression (GPR) and support vector regression for the prediction of mean wave overtopping rate at sloped breakwaters. An extensive dataset taken from the EurOtop database, including rubble mound structures with permeable core, straight …

Uncovering Real Earnings Management: Pay Attention To Risk-Taking Behavior, Samar Alharbi, Md Al Mamun, Nader Atawnah

Research outputs 2014 to 2021

We examine the impact of corporate risk-taking on firm-level real earnings management. We find that firms with higher risk-taking engage in higher real earnings management. Our results are robust to a series of robustness tests, including simultaneous least squares approach, firm fixed effect, change analysis, and pseudo difference-in-difference analysis. Additional analyses reveal that the impact of risk-taking on real earnings management is more pronounced among firms that experience prior-year loss and are run by top-echelons who are risk lovers. Sarbanes-Oxley Act (SOX) regulation does not attenuate the positive effect of risk-taking on real earnings management. However, external monitoring by institutional …