Digital Commons Network^™

Innovation In A Legal Vacuum: The Uncertain Legal Landscape For Shared Micro-Mobility, David Pimentel

Articles

The last few years have seen an explosion in the number and size shared of micro-mobility systems (“SMMS”) across the United States. Some of these systems have seen extraordinary success and the potential benefit of these systems to communities is considerable. However, SMMS have repeatedly ran into legal barriers that either prevent their implementation entirely, confuse and dissuade potential users, or otherwise limit SMMS’s potential positive impact. This paper reflects a detailed study of state laws relating to SMMS and the platforms commonly used in these systems. The study uncovered many inconsistencies with micro-mobility laws across the country. Currently, many …

Distancing Refugees, Geoffrey Heeren

Articles

Today, two systems exist for addressing the humanitarian claims of persons fleeing persecution. One system consists of refugees living in host countries, often in large camps, who ideally are then resettled in other countries or repatriated when it is safe to do so. The other system involves refugees arriving in a country and seeking asylum-a right with ancient religious roots. The first "encampment model" is fundamentally broken, as most refugees are housed in the developing or least developed world in terrible conditions for extended periods of time, with little or no realistic hope of resettlement elsewhere or repatriation. The developed …

A Tribute To Maureen Laflin, Elizabeth Brandt

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No abstract provided.

The Use Of Small-Sided Games As An Aerobic Fitness Assessment Supplement Within Elite Level Professional Soccer, Adam Lee Owen, Matthew Newton, Aidan Shovlin, Shane Malone

Articles

The purpose of this investigation was to quantify the association between 5 vs. 5 small sided games (SSG) running performance and physiological performance during the Yo-YoIR1 test to ascertain the utility of SSGs as a potential fitness test modality within elite professional soccer players. Twenty-three (n = 23) elite male professional soccer players (mean ± SD age 25.3 ± 3.1 yrs, mass: 76 ± 9 kg, height: 176 ± 9 cm) were assessed. Players completed an intermittent aerobic fitness test (Yo-YoIR1) and a 5 vs. 5 SSGs protocol for the purpose of the study. During all SSGs players wore GPS …

A Brief History Of Whiskey Adulteration And The Role Of Spectroscopy Combined With Chemometrics In The Detection Of Modern Whiskey Fraud, Mary Deasy, Aoife C. Power, Sinead Currivan, Sive Geoghegan, Daniel Cozzolino

Articles

Food fraud and adulteration is a major concern in terms of economic and public health. Multivariate methods combined with spectroscopic techniques have shown promise as novel an analytical strategy for addressing issues related to food fraud that cannot be solved by the analysis of one variable, particularly in complex matrices such distilled beverages. This review describes and discusses different aspects of whisky production, and recent developments of laboratory, in field and high throughput analysis. In particular, recent applications detailing the use of vibrational spectroscopy techniques combined with data analytical methods used to distinguish between brand and origin of whisky to …

Evaluation Of An Ag85b Immunosensor With Potential For Electrochemical Mycobacterium Tuberculosis Diagnostics, Brian Murphy, Eithne Dempsey

Articles

Tuberculosis remains a major global health concern, especially in the developing world, and monitoring/early detection of the disease relies on low cost technologies that provide rapid and accurate results. Mycobacterium tuberculosis is the responsible bacterial pathogen and it is currently estimated by the World Health Organisation (WHO), that one quarter of the world’s population, mainly in the developing world, is infected with TB. The overall aim of this work was to advance a screening electrochemical sensor for label free detection of Ag85B, a member of the Antigen 85 complex - major secretary protein of M. Tuberculosisand biomarker for disease. An …

New Estimates For The Number Of Integer Polynomials With Given Discriminants, Natalia Budarina, Vasilii Bernik, Hugh O'Donnell

Articles

In this paper, we propose a new method of upper bounds for the number of integer polynomials of the fourth degree with a given discriminant. By direct calculation similar results were established by H. Davenport and D. Kaliada for polynomials of second and third degrees.

Importance Of Data Distribution On Hive-Based Systems For Query Performance: An Experimental Study, Hilmi Egemen Ciritoglu, John Murphy, Christina Thorpe

Articles

SQL-on-Hadoop systems have been gaining popularity in recent years. One popular example of SQL-on-Hadoop systems is Apache Hive; the pioneer of SQL-on-Hadoop systems. Hive is located on the top of big data stack as an application layer. Besides the application layer, the Hadoop Ecosystem is composed of 3 different main layers: storage, the resource manager and processing engine. The demand from industry has led to the development of new efficient components for each layer. As the ecosystem evolves over time, Hive employed different execution engines too. Understanding the strengths of components is very important in order to exploit the full …

The Supreme Court's Facilitation Of White Christian Nationalism, Caroline Mala Corbin

Articles

Doug Jager, a band student of Native-American ancestry, complained about the Christian prayers at his Georgia public school’s football games. Rather than address his concerns, the school lectured him on Christianity and proposed an alternative that appeared neutral yet would result in the continuation of the Christian prayers. In striking down the school’s proposal, Judge Frank M. Johnson Jr. understood some of the ramifications of state-sponsored Christianity.

Despite Supreme Court rulings limiting Christian invocations at public-school events, government-sponsored Christian prayers and Christian symbols remain plentiful in the United States. This proliferation of government-sponsored Christianity around the country both reflects and …

Identity: Obstacles And Openings, Osamudia R. James

Articles

Progress regarding equality and social identities has moved in a bipolar fashion: popular engagement with the concept of social identities has increased even as courts have signaled decreasing interest in engaging identity. Maintaining and deepening the liberatory potential of identity, particularly in legal and policymaking spheres, will require understanding trends in judicial hostility toward "identity politics," the impact of status hierarchy even within minoritized identity groups, and the threat that white racial grievance poses to identitarian claims.

Media Literacy Beyond The National Security Frame, Lili Levi

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No abstract provided.

A Tale Of Two Markets: Regulation And Innovation In Post-Crisis Mortgage And Structured Finance Markets, William Wilson Bratton, Adam J. Levitin

Articles

This Article takes stock of post-financial crisis regulatory developments to tell a tale of two markets within a political economy of financial regulation. The financial crisis stemmed from excessive risk-taking and dodgy practices in the subprime home mortgage market, a market that owed its existence to private-label securitization. The pre-crisis boom in private label mortgage-backed securities could never have happened, however, without financing from an array of structured products and vehicles created in the capital markets-CDOs, CDO2 s, and SIVs. It was these capital markets products that magnified mortgage credit risk and transmitted it into the financial system's vulnerable nodes. …

Structural Features Of 1,3,4-Thiadiazole-Derived Ligands And Their Zn(Ii) And Cu(Ii) Complexes Which Demonstrate Synergistic Antibacterial Effects With Kanamycin, Dariusz Karcz, Arkadiusz Matwijczuk, Daniel Kaminski, Bernadette Creaven, Katarzyna Lecka-Szlachta, Karolina Starzak

Articles

Classical synthetic protocols were applied for the isolation of three novel 1,3,4-thiadiazole derivatives which were then complexed with the biologically important Cu(II) and Zn(II) ions. All free ligands and their corresponding complexes were characterized using a number of spectroscopic techniques including Ultraviolet-visible (UV–vis), Fluorescence, Infrared (FT-IR), tandem liquid chromatography-mass (LC-MS), X-ray diffraction (XRD), and Nuclear Magnetic Resonance (NMR) spectroscopy (¹H, ¹³C, HSQC, HMBC). The results obtained are consistent with the formation of dihydrate complexes, in which the chelation of the metal ion occurs via one of the thiadiazole nitrogen atoms and the deprotonated hydroxyl group of the …

Irish Construction Cross Border Trade And Brexit: Practitioner Perceptions On The Periphery Of Europe, Tara Brooks, Lloyd Scott, John P. Spillane, Katy Hayward

Articles

The United Kingdom (UK) Brexit vote of June 2016 has created unprecedented uncertainty in the construction industry in Ireland but little research to date has been undertaken on existing construction trading patterns and the potential effects of regulatory divergence and other nontariff barriers in Ireland in this context. In response, this study uses mixed methods to fill this gap in knowledge. The experience of nine construction industry interviewees is probed – five based in Northern Ireland (in the UK) and four from Ireland, which will remain in the EU after the UK leaves. The researchers’ analysis of the qualitative data …

Advancement Of Predictive Modeling Of Zeta Potentials (Ζ) In Metal Oxide Nanoparticles With Correlation Intensity Index (Cii), Andrey A. Toropov, Natalia Sizochenko, Alla P. Toropova, Danuta Leszczynska, Jerzy Leszczynski

Articles

It was expected that index of the ideality of correlation (IIC) and correlation intensity index (CII) could be used as possible tools to improve the predictive power of the quantitative model for zeta potential of nanoparticles. In this paper, we test how the statistical quality of quantitative structure-activity models for zeta potentials (ζ, a common measurement that reflects surface charge and stability of nanomaterial) could be improved with the use of these two indexes. Our hypothesis was tested using the benchmark data set that consists of 87 measurements of zeta potentials in water. We used quasi-SMILES molecular representation to take …

Thermophotovoltaic Systems For Achieving High-Solar-Fraction Hybrid Solar-Biomass Power Generation, Cm Iftekhar Hussain, Aidan Duffy, Brian Norton

Articles

Medium operating temperature hybrid solar-biomass TPV power plant design requires complex integration of multiple high temperature processes with low band-gap TPV cells. A 0.72 eV band-gap GaSb TPV cell has been used in thermophotovoltaic (TPV) systems operating at temperatures above 1400 °C. Low band-gap TPV cells, such as InGaAs (Eg = 0.55 eV) and InAs (Eg = 0.36 eV) could enable a TPV system to operate optimally at temperatures ≈1000 °C. To examine this, two hybrid solar-biomass TPV system configurations are studied using TRNSYS simulation that incorporates a new algorithm for TPV. It is found that in a high solar …

A Preconditioned Lattice Boltzmann Flux Solver For Steady Flows On Unstructured Hexahedral Grids, Brendan Walsh, Fergal Boyle

Articles

The lattice Boltzmann flux solver (LBFS), first introduced by Shu et al. (2014) on structured meshes, allows fluid flow problems to be solved on unstructured meshes discretised by the finite volume method. The solver calculates the macroscopic fluxes at the cell interfaces from a local reconstruction of the lattice Boltzmann solution. In this paper the LBFS is extended to three-dimensional unstructured hexahedral meshes and a preconditioned lattice Boltzmann flux solver (PLBFS) is presented. The PLBFS involves applying the preconditioning technique proposed by Guo (2004) to the LBFS and is achieved by modifying the equilibrium distribution function used to calculate the …

Land-Based Wind Energy Cost Trends In Germany, Denmark, Ireland, Norway, Sweden And The Unitedstates, Aidan Duffy, Maureen Hand, Ryan Wiser, Eric Lantz, Alberto Dalla Riva, Volker Berkhout, Maria Stenkvist, David Weir, Roberto Lacal-Arántegui

Articles

This paper presents work by the International Energy Agency’s Task 26 ‘Cost of Wind Energy’ on technological and cost trends in land-based wind energy in six participating countries (Denmark, Germany, Ireland, Norway, Sweden, United States) and the European Union between 2008 and 2016. Results indicate that there is a general trend towards larger, taller machines with lower specific powers resulting in higher capacity factors, despite small falls in new site wind resources in most countries, while wind project capital costs and project finance costs also fell. This resulted in an average levelized cost of energy (LCOE) fall of 33% for …

Smart Green Communication Protocols Based On Several-Fold Messages Extracted From Common Sequential Patterns In Uavs, Iván García-Magariño, Geraldine Gray, Raquel Lacuesta, Jaime Lloret

Articles

Green communications can be crucial for saving energy in UAVs and enhancing their autonomy. The current work proposes to extract common sequential patterns of communications to gather each common pattern into a single several- fold message with a high-level compression. Since the messages of a pattern are elapsed from each other in time, the current approach performs a machine learning approach for estimating the elapsed times using off-line training. The learned predictive model is applied by each UAV during flight when receiving a several-fold compressed message. We have explored neural networks, linear regression and correlation analyses among others. The current …

Monitoring The Biochemical Changes Occuring To Human Keratinocytes Exposed To Solar Radiation By Raman Spectroscopy, Ulises Lopez-Gonzalez, Alan Casey, Hugh Byrne

Articles

Solar radiation exposure is recognised to be a significant contributor to the development of skin cancer. Monitoring the simultaneous and consecutive mechanisms of interaction could provide a greater understanding of the process of photocarcinogenesis. This work presents an analysis of the biochemical and morphological changes occurring to immortalised human epithelial keratinocyte (HaCaT) cell cultures exposed to simulated solar radiation (SSR). Cell viability was monitored with the aid of the Alamar Blue assay, morphological examination was done with haematoxylin and eosin staining (H&E) and changes to the biochemical constituents (nucleic acids and proteins) as a result of the radiation insult were …

In Vitro Label Free Raman Microspectroscopic Analysis To Monitor The Uptake, Fate And Impacts Of Nanoparticle Based Materials, Hugh Byrne, Franck Bonnier, Esen Efeoglu, Caroline Moore, Jennifer Mcintyre

Articles

The continued emergence of nanoscale materials for nanoparticle-based therapy, sensing and imaging, as well as their more general adoption in a broad range of industrial applications, has placed increasing demands on the ability to assess their interactions and impacts at a cellular and subcellular level, both in terms of potentially beneficial and detrimental effects. Notably, however, many such materials have been shown to interfere with conventional in vitro cellular assays that record only a single colorimetric endpoint, challenging the ability to rapidly screen cytological responses. As an alternative, Raman microspectroscopy can spatially profile the biochemical content of cells, and any …

The Impact Of Body Mass Index On Functional Rehabilitation Outcomes Of Working-Age Inpatients With Stroke, Alejandro Garcia-Rudolph, John D. Kelleher, Blanca Cegarra, Joan Sauri Ruiz, Vasudevan Nedumpozhimana, Eloy Opissso, Jose M. Tormos, Montserrat Bernabeu

Articles

BACKGROUND: Stroke is the most relevant cause of acquired persistent disability in adulthood. The relationship between patient’s weight during rehabilitation and stroke functional outcome is controversial, previous research reported positive, negative and no effects, with scarce studies specifically addressing working-age patients.
AIM: To evaluate the association between Body Mass Index (BMI) and the functional progress of adult (<65 >years) patients with stroke admitted to a rehabilitation hospital.
DESIGN: Retrospective observational cohort study.
SETTING: Inpatient rehabilitation center.
POPULATION: 178 stroke patients (ischemic or hemorrhagic).
METHODS: Point-biserial and Spearman’s correlations, multivariate linear regressions and analysis of covariance were used to describe differences …

Sport In The Face Of The Covid-19 Pandemic: Towards An Agenda For Research In The Sociology Of Sport, Adam B. Evans, Joanna Blackwell, Paddy Dolan, Josef Fahlén, Remco Hoekma, Verena Lenneis, Gareth Mcnarry

Articles

These are extraordinary times. Less because we are currently in the midst of a global pandemic; humanity has been here multiple times in the past, sometimes with even more devastating results (the ‘Black Death’ of 1346–1353, or Cocolitzli Epidemics in the 16th Century, for example). Rather, these are extraordinary times due to both the huge shutting down of industry, travel and borders, and the enormous level of coverage and discussion of the crisis through both traditional and social media formats (Stevens & Prins, 2020). Moreover, global, regional and national comparisons and discussions have become commonplace with regards to everything …

Calibration To Mitigate Near-Field Antennas Effects For A Mimo Radar Imaging System, Ha Hoang, Matthias John, Patrick Mcevoy, Max Ammann

Articles

A calibration method for a high-resolution hybrid MIMO turntable radar imaging system is presented. A line of small metal spheres is employed as a test pattern in the calibration process to measure the position shift caused by undesired antenna effects. The unwanted effects in the antenna near-field responses are analysed, modelled and significantly mitigated based on the symmetry and differences in the responses of the MIMO configuration.

The Fabrication And Properties Of Magnetorheological Elastomers Employing Bio-Inspired Dopamine Modified Carbonyl Iron Particles, Yanfen Zhou, Lele Li, Wenyue Li, Shipeng Wen, Liang Jiang, Stephen Jerrams, Jianwei Ma, Shaojuan Chen

Articles

To obtain magnetorheological elastomers (MREs) with improved mechanical properties and exhibiting an enhanced magnetorheological (MR) effect, bio-inspired dopamine modification has been used to improve the functionality at the surface of carbonyl iron (CI) particles. Various techniques including x-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to confirm that a polydopamine (PDA) layer of about 27.5 nm had been successfully deposited on the surface of the carbonyl iron particles prior to their inclusion in the MRE composites. The magnetic properties of PDA modified CI particles were shown to be almost the same as those …

Influence Of Graphene Oxide And Carbon Nanotubes On The Fatigue Properties Of Silica/Styrene-Butadiene Rubber Composites Under Uniaxial And Multiaxial Cyclic Loading, Zongchao Xu, Stephen Jerrams, Hao Guo, Yanfen Zhou, Liang Jiang, Yangyang Gao, Liqun Zhang, Li Liu, Shipeng Wen

Articles

The influence of equivalent replacement of silica (SiO2) by carbon nanotubes (CNT) or graphene oxide (GO) on the microstructure, mechanical and fatigue behaviors of SiO2/styrene-butadiene rubber (SBR) composites was investigated. Results showed that the synergistic effect between CNT (or GO) and SiO2 was beneficial for the filler network and improved the mechanical properties of SBR composites. Furthermore, the introduction of CNT (or GO) led to low crack growth rates and the crack propagation tips were easy to deflection. Under multiaxial fatigue conditions, the maximum engineering stress was determined to be a reliable fatigue life predictor for SBR composites.

Enhanced Fatigue And Durability Of Carbon Black/Natural Rubber Composites Reinforced With Graphene Oxide And Carbon Nanotubes, Hao Guo, Stephen Jerrams, Zongchao Xu, Yanfen Shou, Liang Jiang, Liqun Zhang, Li Liu, Shipeng Wen

Articles

Graphene oxide (GO) sheets and carbon nanotubes (CNTs) are of nanometer size and offer large shape factors which are beneficial in reducing crack propagation rates of composites when used in carbon black (CB) reinforced natural rubber (NR), thereby prolonging the service lives of rubber composites. In this research, CNT-CB/NR and GO-CB/NR composites were prepared by partially replacing CB with one-dimensional CNTs and two-dimensional flaky graphene oxide GO, respectively. The results showed that the complex filler dispersion in NR matrices was improved due to the isolation effect between the different fillers. The strain-induced crystallization (SIC) ability of CB/NR was effectively enhanced …

A Geostatistical Study Of Socioeconomic Status (Ses), Rurality, Seasonality And Index Test Results As Drivers Of Free Private Groundwater Testing In Southern Ontario, 2012–2016, Shahryar Qayyum, Paul Hynds, Harriet Richardson, Kevin Mcdermott, Anna Majury

Articles

Approximately 12% of the Canadian population uses private wells for daily water consumption; however, well water testing rates are on the decline, resulting in an increased risk of waterborne acute gastrointestinal illness. To date, limited research has explored the determinants influencing well testing practices. Accordingly, the current study sought to investigate the drivers of “one-off” and repeat well water testing in southern Ontario during the 5-year period 2012–2016, using the worlds largest private groundwater testing data-frame. Data from >400,000 wells were geospatially integrated with all tests conducted by the provincial laboratory in southern Ontario. The Ontario Marginalization Index (ON-Marg) was …

The Contemporary Methodology For Quantifying Reserved Instream Flow Water Rights To Support Aquatic Habitat, Dylan R. Hedden-Nicely

Articles

Since time immemorial, indigenous people have relied on the streams of their territory for food, fiber, transportation, recreation, cultural, and spiritual needs. Accordingly, tribal people-particularly those in the region now called the Northwestern United States-placed singular emphasis on preserving their traditional subsistence culture when negotiating with the United States during the reservation era. Although rarely expressed in these treaties, the tribes are nonetheless entitled to water rights sufficient to fulfill these traditional subsistence treaty rights. Of the suite of water rights to maintain traditional uses of water, likely the most commonly claimed is for water to maintain fish habitat. A …

Zealous Administration: The Deportation Bureaucracy, Geoffrey Heeren

Articles

An agency's culture shapes its lawmaking. Under certain conditions, agency culture dominates decision-making so strongly that it mutes the influence of those factors that administrative law scholars have traditionally focused on including presidential will, judicial oversight, internal resistance, and public opinion. We call this undertheorized phenomenon "zealous administration." The immigration enforcement bureaucracy has vast discretion to remove unauthorized immigrants from the United States. Current immigration policies-such as indiscriminate deportation, family separation, and harsh detention-represent the most prominent example of zealous administration in the federal government. This Article focuses on that bureaucracy to plumb the causes and effects of zealous administration …