Digital Commons Network^™

Examining The Impacts Of Virtual Mentoring On College Students' Leadership Efficacy A Quantitative Study Of C.A.M.P Osprey, Justin Michael Lerman

UNF Graduate Theses and Dissertations

Mentoring involves a collaborative and reciprocal sharing of knowledge for professional development. In leadership, a mentor is an individual who currently serves as a leader while guiding someone who aspires to be a leader in the future. This study evaluated how virtual mentoring compares to face-to-face mentoring on the development of leadership self-efficacy for college students. This study undertook a comparative analysis of face-to-face mentoring sessions and virtual mentoring sessions to explore the research question and hypotheses. The mentoring process involved a dyadic relationship where personalities create a positive and effective learning experience. A comparative analysis permitted the study to …

Pbis Implementation And Sustainability: Primary Educators’ Perspectives Of Success, Melissa S. Ley

UNF Graduate Theses and Dissertations

Today the school-wide behavior management program, Positive Behavioral Interventions and Supports, or PBIS, follows the Multi-Tiered Systems of Support (MTSS) framework when addressing students with behavior challenges in general education classrooms. PBIS provides a collaborative framework of problem solving and evidence-based strategies, thus proactively meeting students’ overall needs. The purpose of this study is to fill a gap in the literature pertaining to teacher perspectives of using PBIS practices in their classroom across this framework. This dissertation further details implications for training and professional development concerning school-wide PBIS as well as the organizational structures necessary for success in the classroom. …

Accounting For The Local Field When Determining The Dielectric Loss Spectra Of Metals In The Region Of The Frequencies Of Volume, Surface And Localized Plasmon Oscillations, Tatiana Perova, Igor Shaganove, Kevin Berwick

Articles

The optical constant of bulk metal is used to determine the dispersion of the local field under one-dimensional (1D), two-dimensional (2D) and three-dimensional (3D) confinement. 3D confinement, expressed as ε mic 2 (ω3D), corresponds to the dielectric loss spectra of spherical particles with a diameter, d, much less than the wavelength of the beam used to measure the spectrum (d << λ). Excellent agreement with the results of Mie theory and experimental data for solid colloids within alkali halide crystals was observed. The function expressed as ε mic 2 (ω1D) allows the measurement of spectral micro-characteristics in the frequency range of the longitudinal collective motion of the free electrons. This corresponds to the spectrum of dielectric losses of bulk plasma oscillations. The function ε mic 2 (ω2D) describes the spectra of the dielectric losses of surface plasma oscillations in thin metal films. It is shown that the peak positions of ε mic 2 (ω3D), ε mic 2 (ω2D) and ε mic 2 (ω1D) spectra for simple metals, viz. alkali metals as well as Al, Be, Mg, Ga, In, Sn and Si, are in agreement with experimental results from electron-energy-loss spectroscopy and various optical techniques.

Covid-19: A Simple Curve Approximation Tool, Jane Courtney

Articles

In the current COVID-19 pandemic, much focus is put on ‘flattening the curve’. This ‘curve’ refers to the cases versus time graph, which shows the rise of a disease to its peak before descending. The aim in a pandemic is to flatten this curve by reducing the peak and spreading out the timeline. However, the models used to predict this curve are often not clearly outlined, no model parameters are given, and models are not tested against real data. This lack of detail makes it difficult to recreate the curve from these models. What is much needed is a simple …

Performance Investigation Of Peak Shrinking And Interpolating The Papr Reduction Technique For Lte-Advance And 5g Signals, Somayeh Mohammady, Ronan Farrell, David Malone, John Dooley

Articles

Orthogonal frequency division multiplexing (OFDM) has become an indispensable part of waveform generation in wideband digital communication since its first appearance in digital audio broadcasting (DAB) in Europe in 1980s, and it is indeed in use. As has been seen, the OFDM based waveforms work well with time division duplex operation in new radio (NR) systems in 5G systems, supporting delay-sensitive applications, high spectral efficiency, massive multiple input multiple output (MIMO) compatibility, and ever-larger bandwidth signals, which has demonstrated successful commercial implementation for 5G downlinks and uplinks up to 256-QAM modulation schemes. However, the OFDM waveforms suffer from high peak …

Self-Similar Pcosecond Pulse Compression For Supercontinuum Generation At Mid-Infrared Wavelength In Silicon Strip Waveguides, Yujun Cheng, Jinhui Yuan, Chao Mei, Feng Li, Zhe Kang, Binbin Yan, Xian Zhou, Qiang Wu, Kuiru Wang, Xinzhu Sang, Keping Long, Chongxiu Yu, Gerald Farrell

Articles

Self-similar pulse compression has important application in highly coherent supercontinuum (SC) generation. In this paper, we numerically present the mid-infrared self-similar picosecond pulse compression in a tapered suspended silicon strip waveguide, which is designed with exponentially decreasing dispersion profile along the direction of propagation. When the variation of the Kerr nonlinear coefficient ��(z), linear and nonlinear losses, higher-order nonlinearity, and higher-order dispersion are taken into consideration, the simulation result shows that a 1 ps input pulse centered at wavelength 2.8 μm could be self-similarly compressed to 47.06 fs in a 3.9-cm waveguide taper, along with a compression factor ��c of …

Applications Of Artificial Intelligence To Cryptography, Jonathan Blackledge, Napo Mosola

Articles

This paper considers some recent advances in the field of Cryptography using Artificial Intelligence (AI). It specifically considers the applications of Machine Learning (ML) and Evolutionary Computing (EC) to analyze and encrypt data. A short overview is given on Artificial Neural Networks (ANNs) and the principles of Deep Learning using Deep ANNs. In this context, the paper considers: (i) the implementation of EC and ANNs for generating unique and unclonable ciphers; (ii) ML strategies for detecting the genuine randomness (or otherwise) of finite binary strings for applications in Cryptanalysis. The aim of the paper is to provide an overview on …

A Conceptual Model To Explain Dark Matter And Dark Energy, Jonathan Blackledge

Articles

t This paper considers a conceptual model that attempts to explain ‘Dark Matter’ and ‘Dark Energy’. The model is based on considering a gravitational field to be the result of a mass (a Higgs field) scattering pre-existing cosmic background space-time waves or ‘Uber-waves’. The term ‘Uber’ is used to denote an outstanding or supreme example of a particular kind of gravitational wave with cosmic-scale wavelengths that are far in excess of those associated with the gravitational waves generated by accelerating masses. Such waves are taken to be the very lowest frequency components associated with the spectrum of space-time waves generated …

Reformulating The Binary Masking Approach Of Adress As Soft Masking, Ruairí De Fréin

Articles

Binary masking forms the basis for a number of source separation approaches that havebeen successfully applied to the problem of de-mixing music sources from a stereo recording.A well-known problem with binary masking is that, when music sources overlap in the time-frequencydomain, only one of the overlapping sources can be assigned the energy in a particulartime-frequency bin. To overcome this problem, we reformulate the classical pan-pot source separationproblem for music sources as a non-negative quadratic program. This reformulation gives rise toan algorithm, called Redress, which extends the popular Adress algorithm. It works by definingan azimuth trajectory for each source based on …

A Wide Frequency Scanning Printed Bruce Array Antenna With Bowtie And Semi-Circular Elements, Zeeshan Ahmed, Patrick Mcevoy, Max Ammann

Articles

A printed edge-fed counterpart of the wire Bruce array antenna, for frequency scanning applications, is presented in this paper. The unit-cell of the proposed antenna consists of bowtie and semi-circular elements to achieve wide bandwidth from below 22 GHz to above 38 GHz with open-stopband suppression. The open-stopband suppression enables a wide seamless scanning range from backward, through broadside, to forward endfire. A sidelobe threshold level of −10 dB is maintained to evaluate efficient scanning performance of the antenna. The antenna peak realized gain is 15.30 dBi, and, due to its compact size, has the ability to scan from −64° …

Spectral Dependence Of Transmission Losses In High-Index Polymer Coated No-Core Fibers, Xiaokang Lian, Gerald Farrell, Qiang Wu, Wei Han, Changyu Shen, Youqiao Ma, Yuliya Semenova

Articles

A high-index polymer coated no-core fiber (PC-NCF) is effectively a depressed core fiber, where the light is guided by the anti-resonant, inhibited coupling and total internal reflection effects and the dispersion diagram shows periodic resonant and anti-resonant bands. In this paper, the transmission spectra of the straight and bent PC-NCFs (length > 5 cm) are measured and analyzed from a modal dispersion perspective. For the purpose of the study, the PC-NCFs are contained within a fiber hetero-structure using two single-mode fiber (SMF) pigtails forming a SMF-PC-NCF-SMF structure. The anti-resonance spectral characteristics are suppressed by the multimode interference in the PC-NCF with …

The Effect Of High Background And Dead Time Of An Ingaas/Inp Single-Photon Avalanche Photodiode On The Registration Of Microsecond Range Near-Infrared Luminescence, P. S. Parfenov, A. P. Litvin, D. A. Onishchuk, K. A. Gonchar, Kevin Berwick, A. V. Fedorov, A. V. Baranov

Articles

The effects of a high background count and a microsecond dead time interval on a gated InGaAs/InP single-photon avalanche photodiode (SPAD) during microsecond luminescence decay registration are discussed. It is shown that the background count rate of the SPAD limits its use for time-resolved and steady-spectral measurements, and that a “pile-up” effect appears in the microsecond range.

Carbon-Based Interlayers In Perovskite Solar Cells, Aleksandr P. Litvin, Xiaoyu Zhang, Kevin Berwick, Anatoly V. Fedorov, Weitao Zheng, Alexander V. Baranov

Articles

Perovskites are solution-processed, high-performance semiconductors of interest in low-cost photovoltaics. The interfaces between the perovskite photoactive layers and the top and bottom contacts are crucial for efficient charge transport and minimizing trapping. Control of the collection of charge carriers at these interfaces is decisive to device performance. Here, we review recent progress in the realization of efficient perovskite solar cells using cheap, easily processed, stable, carbon-based interlayers. Interface materials including graphene, carbon nanotubes, fullerenes, graphene quantum dots and carbon dots are introduced and their influence on device performance is discussed.

Application Of Demand Response To Improve Voltage Regulation With High Dg Penetration, Chittesh Veni Chandran, Malabika Basu, Keith Sunderland, Shivananda Pukhrem, João Catalão

Articles

The ability of a consumer friendly demand response based voltage control (DR-VC) program to improve the voltage regulation in a low voltage distribution network (LVDN) with high penetration of DG is investigated. The use of active and reactive power management to regulate the nodal voltage in a distribution network with simple incremental reduction algorithm, in conjunction with DR, is proposed as a solution for over voltage and undervoltage issues in the LVDN. The algorithm micromanages the load and generation in the network enabling the operator to utilize grid resources economically and efficiently while maintaining fairness between consumers with minimum inconvenience. …

Towards A Rapid Screening Of Liver Grafts At The Operating Room Using Mid-Infrared Spectroscopy, David Perezguaita, Marta Moreno Torres, Ramiro Jover, Eugenia Pareja, Bernard Lendl, Julia Kuligowsky, Guillermo Quintas

Articles

The estimation of steatosis in a liver graft is mandatory prior to liver transplantation, as the risk of graft failure increases with the level of infiltrated fat. However, the assessment of liver steatosis before transplantation is typically based on a qualitative or semiquantitative characterization by visual inspection and palpation and histological analysis. Thus, there is an unmet need for transplantation surgeons to have access to a diagnostic tool enabling an in situ fast classification of grafts prior to extraction. In this study, we have assessed an attenuated total reflection−Fourier transform infrared (ATR−FTIR) spectroscopic method compatible with the requirements of an …

In-Situ Ellipsometric Study Of The Optical Properties Of Ltl-Doped Thin Film Sensors For Copper(Ii) Ion Detection, Dervil Cody, Tsvetanka Babeva, Violeta Madjarova, Anastasia Kharchenko, Sabad-E- Gul, Svetlana Mintova, Christopher J. Barrett, Izabela Naydenova

Articles

Optical sensors fabricated in zeolite nanoparticle composite films rely on changes in their optical properties (refractive index, n, and thickness, d) to produce a measurable response in the presence of a target analyte. Here, ellipsometry is used to characterize the changes in optical properties of Linde Type L (LTL) zeolite thin films in the presence of Cu2+ ions in solution, with a
view to improving the design of optical sensors that involve the change of n and/or d due to the adsorption of Cu2+ ions. The suitability of two different ellipsometry techniques (single wavelength and spectroscopic) for the evaluation of …

Herpes Simplex Virus 1 Targets Irf7 Via Icp0 To Limit Type I Ifn Induction, David Shahnazaryan, Rana Khalil, Claire Wynne, Caroline A Jefferies, Joan Ní Gabhann-Dromgoole, Conor C Murphy

Articles

Herpes simplex keratitis (HSK), caused by herpes simplex virus type 1 (HSV‑1) infection, is the commonest cause of infectious blindness in the developed world. Following infection the virus is initially suspended in the tear film, where it encounters a multi‑pronged immune response comprising enzymes, complement, immunoglobulins and crucially, a range of anti‑viral and pro‑inflammatory cytokines. However, given that HSV‑1 can overcome innate immune responses to establish lifelong latency throughout a susceptible individual’s lifetime, there is significant interest in understanding the mechanisms employed by HSV‑1 to downregulate the anti‑viral type I interferon (IFN) mediated immune responses. This study aimed to investigate …

Projections Of Excess Mortality Related To Diurnal Temperature Range Under Climate Change Scenarios: A Multi-Country Modelling Study, Whanhee Lee, Yoonhee Kim Yoonhee Kim, Francesco Sera, Antonio Gasparrini, Rokjin Park Rokjin Park, Hayon Michelle Choi, Kristi Prifti, Michelle L. Bell, Rosana Abrutzky Rosana Abrutzky, Yuming Guo Yuming Guo, Shilu Tong Shilu Tong, Micheline De Sousa Zanotti Stagliorio Coelho, Paulo Hilario Nascimento Saldiva, Eric Lavigne, Hans Orru, Ene Indermitte, Jouni J K Jaakkola, Niilo R I Ryti, Mathilde Pascal Mathilde Pascal, Patrick J. Goodman, Ariana Zeka, Masahiro Hashizume Masahiro Hashizume, Yasushi Honda, Magali Hurtado Diaz, Julio César Cruz Julio César Cruz, Ala Overcenco, Baltazar Nunes, Joana Madureira, Noah Scovronick, Fiorella Acquaotta, Aurelio Tobias, Ana Maria Vicedo-Cabrera Ana Maria Vicedo-Cabrera, Martina S. Ragettli, Yue-Liang Leon Guo, Bing-Yu Chen, Shanshan Li, Ben Armstrong, Antonella Zanobetti, Joel Schwartz, Ho Kim

Articles

Various retrospective studies have reported on the increase of mortality risk due to higher diurnal temperature range (DTR). This study projects the effect of DTR on future mortality across 445 communities in 20 countries and regions.

Dual Contrast In Computed Tomography Allows Earlier Characterization Of Articular Cartilage Over Single Contrast, Abhisek Bhattarai, Behdad Pouran, Janne T.A. Mäkelä, Rubina Shaikh, Miitu K.M. Honkanen, Mithilesh Prakash, Heikki Kröger, Mark W. Grinstaff, Harrie Weinans, Jukka S. Jurvelin, Juha Töyräs

Articles

Cationic computed tomography contrast agents are more sensitive for detecting cartilage degeneration than anionic or non-ionic agents. However, osteoarthritis-related loss of proteoglycans and increase in water content contrarily affect the diffusion of cationic contrast agents, limiting their sensitivity. The quantitative dual-energy computed tomography technique allows the simultaneous determination of the partitions of iodine-based cationic (CA4+) and gadolinium-based non-ionic (gadoteridol) agents in cartilage at diffusion equilibrium. Normalizing the cationic agent partition at diffusion equilibrium with that of the non-ionic agent improves diagnostic sensitivity. We hypothesize that this sensitivity improvement is also prominent during early diffusion time points and that the technique …

Synchrotron Microct Reveals The Potential Of The Dual Contrast Technique For Quantitative Assessment Of Human Articular Cartilage Composition, Miitu K.M. Honkanen, Annina E.A. Saukko, Mikael J. Turunen, Rubina Shaikh, Mithilesh Prakash, Goran Lovric, Antti Joukainen, Heikki Kröger, Mark W. Grinstaff, Juha Töyräs

Articles

Dual contrast micro computed tomography (CT) shows potential for detecting articular cartilage degeneration. However, the performance of conventional CT systems is limited by beam hardening, low image resolution (full-body CT), and long acquisition times (conventional microCT). Therefore, to reveal the full potential of the dual contrast technique for imaging cartilage composition we employ the technique using synchrotron microCT. We hypothesize that the above-mentioned limitations are overcome with synchrotron microCT utilizing monochromatic X-ray beam and fast image acquisition. Human osteochondral samples (n = 41, four cadavers) were immersed in a contrast agent solution containing two agents (cationic CA4+ and non-ionic gadoteridol) …

The Missing Parameter In Renewable Energy Power Quality Analysis, I.E. The Coefficient Of Variation: Case Study Of A 3-Mw On-Site Wind Turbine Project In Ireland, Tony Kealy

Articles

Businesses are employing distributed generation techniques, such as wind turbines, to decarbonise their electrical energy supply by reducing their dependence on fossil-fuel-generated energy. This study investigates the effectiveness of a company making a €3,500,000 investment in a 3-MW on-site wind turbine to supply some or all of their factory electrical loads. The results should benefit the investing company and other potential investors by evaluating the economic, environmental, and social outcomes of the investment. A case study methodology was used. The study found that the payback period was six and a half years, and the turbine installation benefited the environment by …

Affh And The Challenge Of Reparations In The Administrative State, Olatunde C.A. Johnson

Faculty Scholarship

America’s summer of racial reckoning has led to increased attention on proposals to provide reparations to Black Americans.

Reparations discussions typically concern securing compensation for slavery. The racial harm caused by the administrative state is generally less of a focus, even though racial exclusions and discrimination in 20th-century administrative programs helped shape contemporary disparities in housing, wealth, and opportunity that endure today. A provision of federal housing law provides a window into the roots of racial harm enacted through administrative state programs, as well as the limits of administrative law as a tool for repairing this harm.

All Faiths & None: A Guide To Protecting Religious Liberty For Everyone, Elizabeth Reiner Platt, Katherine M. Franke, Keisha E. Mckenzie, Katharine Rhodes Henderson

Faculty Scholarship

Religious liberty rights have been immeasurably damaged over the past several years — often in the name of protecting religious liberty.

Government officials have embraced Islamophobic policies and rhetoric; shut the door on refugees fleeing religious persecution; elevated the religious rights of their political allies over the rights — religious and otherwise — of other communities; used religion as a tool of economic deregulation; and denigrated the beliefs of religious minorities, atheists, and religious progressives.

To achieve true freedom for those of all faiths and none, a complete overhaul of religious liberty policy, and a new understanding of what this …

The Role Of State And Federal Law In Energy Condemnations, Stewart E. Sterk

Articles

When an energy provider condemns fee interests or easements to permit construction of transmission lines, what roles do state and federal law play in determining the "just compensation" available to affected landowners? That question has arisen in a number of different factual contexts. Usually, condemnors seek to avoid state law rules that provide for compensation beyond what they believe represents the market value of the property they seek to acquire. For instance, condemnors may seek an offset for benefits the condemnation generates for neighboring land owned by the condemnee. Condemnors may also seek to avoid state rules that entitle condemnees …

On Trust, Law, And Expecting The Worst, Elizabeth F. Emens

Faculty Scholarship

This Review has three parts. Part I aims to convey something of the breadth and interest of Hasday’s fascinating new book, foregrounding the role of gender and beginning to touch the subject of trust. Part II delves briefly but widely into the theme of trust, which pervades the book and invites further examination. Part III presents a framework that combines affective trust and epistemic curiosity and applies this framework to illuminate and sort Hasday’s proposals for reform; to critique a recent, dramatic change in the evidentiary treatment of marital confidences; and to devise a novel approach to prenuptial agreements. Throughout, …

Discrete Rent-Seeking Games With An Application To Evidence Production, Giuseppe Dari-Mattiacci, Lewis A. Kornhauser

Faculty Scholarship

Evidence production at trial, the accumulation of patents in a technological race, and lobbying are contests that often involve strategic choices over a discrete set of options. The literature has primarily focused on games with continuous effort choices. We fill this gap by studying a rent-seeking game with discrete effort choices and, for a significant class of games, derive a transformation rule that allows one to find the equilibrium of the discrete game from the equilibrium of the continuous game, which is much simpler to identify. We also discuss the limits of this approach and how well the continuous game …

Why Should We Care About International Law?, Monica Hakimi

Faculty Scholarship

International lawyers are used to having their discipline dismissed. A conspicuous strand of thought in U.S. foreign policy circles — known as realist — posits that international law does not matter. Realists of course recognize that states and other global actors speak the language of international law. But they view this discourse as cheap talk or epiphenomenal. They contend that state decisions on the international plane are animated not by the dictates of international law but by material interests and power. States act consistently with international law insofar as they have independent reasons for acting that way. If those reasons …

America's Hidden Foster Care System, Joshua Gupta-Kagan

Faculty Scholarship

In most states, child protection agencies induce parents to transfer physical custody of their children to kinship caregivers by threatening to place the children in foster care and bring them to family court. Both the frequency of these actions (this Article establishes that they occur tens or even hundreds of thousands of times annually) and their impact (they separate parents and children, sometimes permanently) resemble the formal foster care system. But they are hidden from courts, because agencies file no petition alleging abuse or neglect, and hidden from policymakers, because agencies do not generally report these cases.

While informal custody …

Making Sense Of Customary International Law, Monica Hakimi

Faculty Scholarship

This Article addresses a longstanding puzzle about customary international law (CIL): How can it be, at once, so central to the practice of international law — routinely invoked and applied in a broad range of settings — and the source of such persistent confusion and derision? The centrality of CIL suggests that, for the many people who use it, it is not only comprehensible but worthwhile. They presumably use it for a reason. But then, what accounts for all the muddle and disdain?

The Article argues that the problem lies less in the everyday operation of CIL than in the …

Conference On Best Practices For Managing Daubert Questions, Daniel J. Capra, David G. Campbell, Debra A. Livingston, James P. Bassett, Shelly Dick, Traci L. Lovitt, Thomas Marten, Kathryn N. Nester, Thomas D. Schroeder, Elizabeth J. Shapiro, Timothy Lau, Vince Chhabria, John Z. Lee, William H. Orrick Iii, Edmund A. Sargus Jr., Sarah A. Vance, Edward K. Cheng

Faculty Scholarship

This article is a transcript of the Philip D. Reed Lecture Series Conference on Best Practices for Managing Daubert Questions, held on October 25, 2019, at Vanderbilt Law School under the sponsorship of the Judicial Conference Advisory Committee on Evidence Rules. The transcript has been lightly edited and represents the panelists’ individual views only and in no way reflects those of their affiliated firms, organizations, law schools, or the judiciary.