Digital Commons Network^™

A Novel Anthropomorphic Flow Phantom For The Quantitative Evaluation Of Prostate Dce-Mri Acquisition Techniques, Silvin Knight, Jacinta Browne, James Meaney, David Smith, Andrew Fagan

Articles

A novel anthropomorphic flow phantom device has been developed which can be used for quantitatively assessing the ability of MRI scanners to accurately measure signal / concentration time-intensity curves (CTCs) associated with dynamic contrast-enhanced (DCE) MRI. Modelling of the complex pharmacokinetics of contrast agents as they perfuse through the tumour capillary network has shown great promise for cancer diagnosis and therapy monitoring. However, clinical adoption has been hindered by methodological problems, resulting in a lack of consensus regarding the most appropriate acquisition and modelling methodology to use and a consequent wide discrepancy in published data. A heretofore overlooked source of …

Controllable Growth Of Vertically Aligned Graphene On C-Face Sic, Yu Liu, Lianlian Chen, Donovan Hilliard, Qing-Song Huang, Fang Liu, Mao Wang, Roman Böttger, René Hübner, Alpha T. N’Diaye, Elke Arenholz Elke Arenholz, Viton Heera Viton Heera, Wolfgang Skorupa Wolfgang Skorupa, Shengqiang Zhou

Articles

We investigated how to control the growth of vertically aligned graphene on C-face SiC by varying the processing conditions. It is found that, the growth rate scales with the annealing temperature and the graphene height is proportional to the annealing time. Temperature gradient and crystalline quality of the SiC substrates influence their vaporization. The partial vapor pressure is crucial as it can interfere with further vaporization. A growth mechanism is proposed in terms of physical vapor transport. The monolayer character of vertically aligned graphene is verified by Raman and X-ray absorption spectroscopy. With the processed samples, d0 magnetism is realized …

Investigation Of A Scalable Barrel Atmospheric Plasma Reactor For The Treatment Of Polymer Particles, Hisham Abourayana, Vladimir Milosavljevic, Peter Dobbyn, Patrick J. Cullen, Denis Dowling

Articles

This study reports on the performance of a scalable barrel atmospheric plasma system for the treatment of polymer particles. A novel feature of the barrel system design is the use of a biased electrode, which also acts as the roller for the glass barrel. The plasma is generated using either helium or helium / oxygen gas mixtures. The reactor was used to activate 20 g batches of silicone, polypropylene (PP), acrylonitrile butadiene styrene (ABS) and polyethylene terephthalate (PET) particles, each with diameters in the range 3 to 5 mm. The effect of plasma treatment time and gas flow rate on …

Screening For Peripheral Arterial Disease And Carotid Artery Disease In Patients With Abdominal Aortic Aneurysm, C. Gray, Patrick J. Goodman, Paul Cullen, Stephen Badger, Kevin O'Malley, Martin K. O'Donohoe, Ciarán O. Mcdonnell

Articles

Screening for concomitant atherosclerotic disease is important in cardiovascular risk reduction. This study assessed the prevalence of carotid artery disease (CAD) and peripheral arterial disease (PAD) in patients with known abdominal aortic aneurysms (AAAs). All patients with AAA attending the vascular laboratory between the January 1, 2007, and December 31, 2009, were eligible for a carotid ultrasound and measurement of ankle brachial indices. A total of 389 (305 males) patients were identified on the AAA surveillance program with a mean (±standard deviation) age of 76 (±8) years. The mean age of the males was 75.4 (±7.8) years, and the mean …

Endovascular Aneurysm Repair Increases Aortic Arterial Stiffness When Compared To Open Repair Of Abdominal Aortic Aneurysms, C. Gray, Patrick J. Goodman, Stephen Badger, M. Kevin O'Malley, Martin K. O'Donohoe, Ciarán O. Mcdonnell

Articles

Objectives: The initial survival advantage seen with endovascular aneurysm repair (EVAR) over open repair does not persist in the long term. Pulse wave velocity (PWV) is a measure of arterial stiffness, and increased PWV is an independent risk factor for increased cardiovascular morbidity and mortality. This prospective comparative pilot study examined the effect of implantation of an aortic graft on PWV in patients undergoing open or endovascular aortic aneurysm repair. Patients and Methods: Thirty-four patients (15 open and 19 EVAR) were recruited. Patient demographics were similar in both the groups. Pulse wave velocity was calculated for all patients …

Suppressed Intuitions, Large Number Coincidences, And A Mathematical Foundation For Life And Consciousness, Maurice Goodman

Articles

A brief examination of the natural sciences reveals that we are still under the influence of pre Copernican intuitions. These have only been suppresses and not supplanted. This is why we appeal to such things as large number coincidences in the hope that the mathematics, which unlike us does not suffer from naive beliefs, will lead us in the right direction. However, we need to be extremely careful as it is easy to create these coincidences and over interpret their significance. In the 1980’s work on these coincidences did lead to a mathematical formulism which seems to have relevance in …

Three-Level Hysteresis Current Control Strategy For Three-Phase Four-Switch Shunt Active Filters, Samet Biricik, Hasan Komurcugil

Articles

In this study, a three-level hysteresis current-control (HCC) strategy is proposed for three-phase four-switch shunt active power filters. The four-switch topology which utilises four switching devices together with two series connected capacitors is able to reduce the cost, switching losses and improve the reliability of system. In this topology, when the current control of phases A and B is achieved successfully, the current control of phase C which is connected to the midpoint of the series connected capacitors is achieved automatically. The current control is achieved by using a three-level HCC strategy. An important consequence of using this control strategy …

Common Data Set, 2015-2016, Planning, Research, And Policy Analysis

Common Data Set (2001-present)

Common Data Set 2015-2016 for Illinois State University

2015 Survey Of Government Contract Cases Before The Federal Circuit, Kathleen Hsu

American University Law Review

No abstract provided.

Evaluation Of Marzano’S Instructional-Strategies Program At A Southeastern Elementary School, Renee B. Evans

Theses and Dissertations

The purpose of this applied dissertation was to evaluate an instructional-strategies program implemented at a southeastern elementary school. The program was implemented with the intent to increase teacher effectiveness, thereby impacting student achievement. The evaluation sought to determine if the strategies were implemented as designed and the impact and effectiveness of the program. The research also sought to determine what strategies should be sustained and any unanticipated effects.

The Stufflebeam program-evaluation model was used to guide the research. Only the process and product evaluation types were used. The school’s principal and district’s instructional coach were interviewed, and 40 of 48 …

Characteristics Of Adult General Education Learners And Courses: A Correlational Study On The Elements Of Success, Daniel Jennings Stackhouse

Theses and Dissertations

The purpose of this study was to determine if a correlation exists among characteristics common to successful adult career and technical students in the traditional classroom setting, the online mode of instruction, and a hybrid of the traditional and distance mode of instructional delivery. A gap in the literature exists, resulting in a lack of knowledge specific to the reasons for success or failure of these adult career and technical students, specifically in relation to mode of instructional delivery: traditional classroom, online, or a hybrid of both.

This study is a quantitative correlation study of explanatory and predictive design using …

The Effectiveness Of A Computer-Based Program On The Reading Performance Of Fourth-Grade Students, Latonya L. Cooper

Theses and Dissertations

The intent of this applied dissertation was to determine whether a reading intervention of a computer-based program would increase the reading comprehension and vocabulary skills of students in fourth grade in a Title I elementary school. Although the No Child Left Behind Act (NCLB) covers various federal education programs, the law’s requirements for testing, accountability, and school improvement receive the most attention. NCLB requires states to test students in reading and mathematics annually in Grades 3-8 and once in Grades 10-12. Schools must test students in science once in Grades 3-5, 6-8, and 10-12. Individual schools, school districts, and states …

Librarians’ Use Of Instructional Design Methods In Creating Information Literacy Instruction, Michael W. Wilson

Theses and Dissertations

The purpose of this sequential explanatory mixed methods study was to determine whether instruction librarians in the United States and Canada were using instructional design (ID) methods, and to identify potential explanations for their adoption or rejection of those methods. The theory of planned behavior (Ajzen, 1985) served as the theoretical framework for the study. Research questions examined the relationship between respondents’ reported use of ID methods and the following factors: (a) behavioral, normative, and control beliefs, (b) demographic factors, and (c) professional identity as teachers. A survey adapted from Ajjan and Hartshorne (2008) and from Julien and Genuis (2011) …

Effects Of A Music Literacy Integration Intervention On Teachers’ Self-Efficacy And Proactive Attitudes Toward Music Integration In Classroom Instruction, Mary Louise Keyloun Cruz

Theses and Dissertations

With the adoption of the common core state standards, pressure to raise the achievement of young learners was intense. Classroom teachers were scrutinized to teach lessons with high levels of thinking and rigor. Teachers were inclined to eliminate or ignore artsenriched lessons that would benefit students. The reason for this action was associated with the efficacy of the classroom teacher toward music integration in literacy curriculum. The purpose of the study was to examine the effects of the Music Literacy Integration Intervention (MLII) on the self-efficacy and proactiveness of teachers at a small elementary school in Florida toward integration of …

Graduate Survey, 2015-2016, Hart Career Center, Illinois Wesleyan University

First Destination Survey

No abstract provided.

Low-Velocity Impact To High-Temperature Low-Sag Overhead Conductors, Daniel Halka Waters

Electronic Theses and Dissertations

High-Temperature Low-Sag (HTLS) conductors, such as Aluminum Conductor Composite Core (ACCC), improve infrastructure to support the delivery of power to meet the nation's increasing demand for electricity. Their response to low-velocity impacts during transportation, installation or in service, however, has not been addressed in the past. Therefore, this study investigates both experimentally and numerically mechanical effects associated with transverse low-velocity impacts on energy dissipation by the conductors subjected to either free or constrained end conditions and large axial tensile loads. Impact experiments were conducted using a newly designed and manufactured testing apparatus. The experimental work was strongly supported by non-linear …

Anatomy, Implant Selection And Placement Influence Spine Mechanics Associated With Total Disc Replacement, Justin F.M. Hollenbeck

Electronic Theses and Dissertations

Through aging and injury, the intervertebral disc of the lumbar spine can undergo degeneration, leading to collapse of the vertebrae and low back pain, a symptom that affects half the adult population in any given year. In an effort to reduce low back pain, total disc replacement treatment removes the degenerated disc, restores natural height and lordosis of the segment, and preserves motion at the joint. Patient anatomy, implant selection, and implant placement play significant roles in a patient's outcomes after total disc replacement surgery. Thus, the objective of the work presented in this thesis was to develop a suite …

Smart Fog Computing Interface For Healthcare Domain Applications, Admir Monteiro

Open Access Master's Theses

Technology is advancing tremendously in this day and age where more and more devices are being deployed in the market of digital devices; so much so that the market is being oversaturated with many different kinds of digital devices to simplify our everyday needs in life. This advancement can have negative consequences, however, there may also be benefits that stem from this technological advancement- especially in healthcare.

One possible benefit is to utilize the device’s capabilities to give real time feedback to people with medical diagnoses. Furthermore, that device could be connected to a stream of other devices to have …

Finite Element And Probabilistic Analysis Of Soft Tissue Structures Of The Human Lumbar Spine, Dana Joseph Coombs

Electronic Theses and Dissertations

Human lumbar spine mechanics are influenced by soft tissue structures. Understanding and properly modeling these structures can help determine pathology, treatment, and implant design and performance. Finite element models of the L4-L5 level of the lumbar spine are often used, which include a representation of the intervertebral disc and spinal ligaments. Validation of these models are typically based on torque rotation data from a single subject or the models use average properties reported in literature. However, experimental testing reports variation up to 40% in ligament stiffness and even greater variability for annulus fibrosis properties. Probabilistic approaches enable consideration of the …

Regional Mechanical Properties And Microstructure Of Ovine Heart Chambers, Shahnaz Javani

Electronic Theses and Dissertations

Mechanical properties of cardiac tissue play an important role in the normal heart function. As a baseline for understanding of physiology and pathophysiology of the heart, and for development and validation of new therapies, it is crucial to first understand the mechanical behavior of the normal heart tissue. Although heart chambers have the same embryonic origin, differences in the development of mechanical properties are expected to manifest over time during the adulthood period. Therefore, the goal of this study was to determine the passive mechanical properties of all heart chambers through a paired comparison study in an ovine model. Ovine …

Multiscale Musculoskeletal Modeling Of The Lower Limb To Perform Personalized Simulations Of Movement, Alessandro Navacchia

Electronic Theses and Dissertations

Computational modeling has been used for many decades to inform design and decision-making in several fields of engineering, such as aerospace, automotive, petroleum, and others. However, it still struggles to have a similar impact in fields of medicine, such as orthopaedics. Three of the challenges that have limited the use of computational modeling in the clinical practice and in product development are model validation, personalization, and realism. Validation is a challenge because several internal parameters of the human body, such as muscle forces, are not safely measurable in vivo and, consequently, a thorough comparison between model outputs …

"Ev'ry American Experiment Sets A Precedent": Why One Florida State Court's Bitcoin Opinion Is Everyone's Business, Allison Caffarone, Meg Holzer

Hofstra Law Faculty Scholarship

July 22, 2016. A Florida state court dismisses a three-count information against a sole defendant in "a Miami money-laundering case that is being closely watched around the world." The defendant, a dealer of the virtual currency bitcoin, is free to go. He is also free to continue engaging in the sale of bitcoin. This "victory for bitcoin users" was the first state court case to address Bitcoin in the context of the money services business and anti-money laundering statutes. And on every front, the court got it wrong — while the world was watching. Federal and state prosecutors, defense attorneys, …

Ced After #Ows: From Community Economic Development To Anti-Authoritarian Community Counter-Institutions, Michael Haber

Hofstra Law Faculty Scholarship

Community Economic Development (“CED”) and community-based social justice non-profits more generally have been criticized by social justice lawyers, legal scholars, practitioners, and activists, who charge that these efforts too often overlook the structural drivers of inequality, strip social justice movements of their confrontational, activist politics, and fail to give community members meaningful control over their programs. Over the past decades, anti-authoritarian activists — perhaps most famously known through Occupy Wall Street — have developed new frameworks for social change movements based on philosophical commitments to horizontalism, autonomism, and prefigurative politics. Many anti-authoritarian activists have turned their attention to creating community-based …

Modern Critiques Of Judicial Empathy: A Revised Intellectual History, Brenner M. Fissell

Hofstra Law Faculty Scholarship

The role of "empathy" haunts recent debates about how judges make decisions. Remarkably, however, the intellectual origins of scholarly resistance to empathic judging remain poorly understood. This Article fills that gap. Through historical and theoretical study, it reveals the ways in which the modern anti-emphatic consensus can be seen as a mutated descendent of late-nineteenth century formalism. This Article also marks an irony with significant implications for the empathy debate: Although the anti-empathic view was born offormalism, it has drifted from its source such that it would almost certainly be condemned by the very formalist scholars from whom it is …

Computer Science Education At The Claremont Colleges: The Building Of An Intuition, Lauren Burke

Scripps Senior Theses

In this thesis, I discuss how the undergraduate computer scientist is trained, and how they learn what I am calling computational intuition. Computational intuition describes the methodology in which computer scientists approach their problems and solve them through the use of computers. Computational intuition is a series of skills and a way of thinking or approaching problems that students learn throughout their education. The main way that computational intuition is taught to students is through the experience they gain as they work on homework and classwork problems. To develop computational intuition, students learn explicit knowledge and techniques as well as …

The Philosophy Of Mathematics: A Study Of Indispensability And Inconsistency, Hannah C. Thornhill

Scripps Senior Theses

This thesis examines possible philosophies to account for the practice of mathematics, exploring the metaphysical, ontological, and epistemological outcomes of each possible theory. Through a study of the two most probable ideas, mathematical platonism and fictionalism, I focus on the compelling argument for platonism given by an appeal to the sciences. The Indispensability Argument establishes the power of explanation seen in the relationship between mathematics and empirical science. Cases of this explanatory power illustrate how we might have reason to believe in the existence of mathematical entities present within our best scientific theories. The second half of this discussion surveys …

Dynamic Analysis Of Multi-Degree-Of-Freedom Systems Using A Pole-Residue Method, Kevin A. Goodell

Open Access Master's Theses

This dissertation is concerned with the development of a robust pole-residue method for the dynamic analysis of multiple-degree-of-freedom structures. The utilization of this new pole-residue method requires additional analysis and a determination of its effectiveness in calculating a structure's response to an external excitation. The components of the computational framework are a deterministic model of the dynamic loading and a well defined structure. The finite element method will be used to describe the system, simplify the problem, and develop the mathematical expressions to describe the system's behavior. A commercial finite element software program was used to verify the natural frequencies …

Robust Multi-Criteria Optimal Fuzzy Control Of Discrete-Time Nonlinear Systems, Xin Wang, Edwin E. Yaz

Electrical and Computer Engineering Faculty Research and Publications

This paper presents a novel fuzzy control design of discrete-time nonlinear systems with multiple performance criteria. The purpose behind this work is to improve the traditional fuzzy controller performance to satisfy several performance criteria simultaneously to secure quadratic optimality with an inherent stability property together with a dissipativity type of disturbance reduction. The Takagi–Sugeno-type fuzzy model is used in our control system design. By solving a linear matrix inequality at each time step, the optimal control solution can be found to satisfy mixed performance criteria. The effectiveness of the proposed technique is demonstrated by simulation of the control of the …

Association Of Urinary Phthalates With Self-Reported Eye Affliction/Retinopathy In Individuals With Diabetes: National Health And Nutrition Examination Survey, 2001-2010, Manju Mamtani, Joanne E. Curran, John Blangero, Hemant Kulkarni

School of Medicine Publications

Background. An epidemiological association between exposure to phthalates and type 2 diabetes (T2D) is known. However, the potential role of environmental phthalates in the complications of T2D is unknown. Methods. Using data from the National Health and Nutrition Examination Survey (NHANES) 2001-2010, we studied the association of 12 urinary phthalate metabolites with self-reported eye affliction/retinopathy in 1,004 participants with diabetes. Data from retinal imaging was used to validate this outcome. Independence of the phthalates→T2D association was studied by adjusting for age, sex, race, marital status, educational attainment, poverty income ratio, physical activity, glycated hemoglobin levels, total serum cholesterol, serum high-density …

An Application Of The Spectral Theorem To The Laplacian On A Riemannian Manifold, Paul Bracken

School of Mathematical & Statistical Sciences Faculty Publications

There continues to be great interest in the study of the heat equation on Riemannian manifolds. This may be due to the remarkable more recent work of Patodi [1]. It may also be due in part to the asymptotic expansion of Minakshisundaram and Pleijel. The heat equation involves a parabolic partial differential equation that describes the distribution of heat in a given region over time. This equation has also appears in probability theory to describe random walks. The heat equation is also of importance in Riemannian geometry, topology and applied mathematics.