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Model Behavior: An Assessment of Role Model Attachment
Patrick Charles Doyle
Despite the term existing since the early part of the 20th century, little is known about role models and relationships that individuals develop with them. Using attachment theory, a cornerstone of interpersonal theory, relationships between individuals and their role models are compared to relationships between those individuals and their parents in the present study. While data did not support the hypothesis, that those with anxious attachment to their parents will experience more secure attachment to their role model, promising opportunities for future research were suggested by the qualitative data that was collected. For example, the experience of many participants revealed a potentially complex relationship between role model expectations and gender.
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Modeling and Operationalizing Flexible Human-Computer Dialogs
Joshua W Buck
We demonstrate a tool for rapidly prototyping dialog-based systems for interactive use. The tool enables a dialog designer to evaluate a variety of dialogs without having to program each individual dialog, and provides a proof-of-concept for our approach to mixed-initiative dialog modeling and implementation. Applications of our Our tool can be applied to human-computer dialogs common in automated teller machines (ATMs), kiosks, personal assistants, and online forms including course scheduling.
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Monetary Policy and Unemployment Rates: Is there a relationship? An Empirical Analysis: 2001-2015
John C. Scheuble
The Federal Reserve has a dual mandate to carry out Policy objectives that bring about full employment in the economy with price stability. On the full employment side, monthly job growth along with unemployment rates are two key metrics that indicate how well the fed is doing in achieving the mandate. In this study, I focus on unemployment rate trends over the period 2001-2015.In 2001, the U.S. economy was dealing with a mild recession and in 2008 a severe recession. I look at the trend in the unemployment rate for the periods 2001-2007 and 2009-2015 to obtain a better understanding of how the unemployment rates differed over each time period. Finally, I look at the relationship between the unemployment rates,inflation and the money supply in the 2009-2015 period to determine if these factors are inversely correlated.
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Multi-Input Multi-Output Adaptive Control of 9-DOF Hyper-Redundant Robotic Arm
Xingsheng Xu
In this paper, multi-input multi-output (MIMO) direct adaptive torque controller is presented that uses conventional fuzzy system to provide asymptotic end-effector tracking of a reference path for a 9-DOF hyper redundant manipulator dynamic model. As a result, MIMO adaptive controller, which inputs torque of each joint to control end-effector dynamic variables, can highly improve the robotic performance considering both its kinetics and dynamics while executing motion control or tracking a reference in work space. Also, it increases the robustness with respect to disturbance, sensor noise and poorly understood dynamic model. The efficacy of our control algorithm affects the accuracy , stability and robustness of both motion control and path tracking.
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Mutant PriA C-Tev ML346 and its Unwinding DNA Capabilities
Sydney E. Kirk
DNA damage can cause the process of DNA replication to stall and this can lead to dissociation of the DNA replication enzymes from the DNA. In bacteria, a protein called PriA recognizes this, unwinds a portion of duplex DNA at the site where replication stalled, and reloads the replication enzymes to restart DNA replication. PriA has multiple structural domains that are closely associated with one another to give rise to a compact globular protein. The winged helix domain, however, is connected to the remainder of the protein by a long, flexible portion of polypeptide, akin to a tether. I examined the significance of the winged helix domain’s long, flexible tether by lengthening it at its C-terminal end even further. I hypothesized that this would alter its DNA unwinding capability. Through a helicase assay I observed that lengthening the C-terminal tether did not change its capability to unwind duplex DNA.
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Neuroprotective Function of Lunasin in Alzheimer's Disease Model
Neil William Glenn, Ankita Sarkar
The neuropathology of Alzheimer’s Disease (AD) is a complex system of neurodegenerative factors that contribute to the loss of brain function. One of the most studied factors is the aggregation of amyloid plaques within the brain. These plaques are formed from the improper cleavage of the amyloid precursor protein (APP) to form the hydrophobic peptide, Aβ42. These peptides congregate in plaques that surround neuronal cells and inhibit their function. As the these cells begin to degrade, microglial cells that act as the central nervous system’s immune defense attempt to remove these plaques. However these cells are not capable in fully removing these plaques and incite an inflammatory response through the release of several cytokines and chemokines from the microglial cell. These messengers can induce oxidative stress within the CNS and lead to further cell damage. Our disease model is based on the visual system of the Drosophila melanogaster. The Aβ42 protein is misexpressed during the development of the photoreceptor neurons which results in observable loss of eye formation in the adult fly. We propose by introducing a known anti-inflammatory protein, Lunasin, into our disease model we can further understand the role of inflammation in AD neuropathology. Here present the findings of our studies.
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Objective Function Choice Influences Muscle Muscle Force Predictions During Human Walking
Elijah C Kuska
The knowledge of forces in muscles and joints inside the human body may help to improve rehabilitation for individual patients. However, the human body is complex and these forces are unmeasurable. Through the use of motion capture technology, 3D modeling, and computational methods in the field of biomechanics we are able to simulate motion by predicting these forces. One challenge to biomechanical simulation is that we do not understand the strategy humans use to coordinate their muscles to walk. The purpose of this study was to examine muscle coordination strategies used to simulate walking. Different muscle coordination strategies are attained in a simulation by altering a quantity called the objective function. Simulation output data can be compared between strategies and to experimental data to determine the strategy that best represents human muscle coordination. In the future this knowledge may be applied to rehabilitation techniques: changing them from generalized to patient-specific.
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Object Tracking using Statistic-based Feature Fusion Technique
Evan W Krieger, Sidike Paheding
Object tracking in wide area motion imagery (WAMI) is challenging because of many factors including small target sizes, viewpoint changes, object rotation, occlusions, and shadows. One method to overcome these challenges is to fuse multiple features of different types to obtain a robust understanding of the object. For multi-feature fusion based tracking applications, the weighting of the features will highly affect the outcome. While obtaining a constant weighting scheme based on training sequences is possible, an adaptive method may better utilize the features. An adaptive weighting scheme should favor the most discerning features in the previous frames. A known way to determine a feature’s ability to discern the target from the background is based on statistics analysis. We propose to use the statistics-based fusion method to better utilize rotation invariant based features to track objects. The effectiveness of the fusion method will be compared to a constant weighting scheme on eight sequences in two WAMI datasets.
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On-chip Training of Memristor based Deep Neural Networks
Md Raqibul Hasan
This research develops on-chip training circuits for memristor based deep neural networks utilizing unsupervised and supervised learning methods. As the training and recognition of deep networks are computationally intensive, specialized circuits capable of on-chip training of these networks could have significant advantages in speed and power consumption. Memristor crossbar circuits allow neural algorithms to be implemented very efficiently, but could be prone to device variations and faults. On chip training circuits would allow the training algorithm to account for device variability and faults in these circuits. We have utilized autoencoders for layer-wise pre-training of the deep networks and utilized the back-propagation algorithm for supervised fine tuning. Our design utilizes two memristors per synapse for higher precision of weights. Techniques to reduce the impact of sneak-paths in a large memristor crossbar and for high speed simulations of large crossbars were proposed. We performed detailed evaluation of the training circuits with some nonlinearly separable datasets which take crossbar wire resistance and sneak-paths into consideration. We also demonstrated successful training of memristor based deep networks for the MNIST digit classification and the KDD intrusion detection datasets. This work would enable the design of high throughput, energy efficient, and compact deep learning systems.
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Output per Hour and Unit Labor Cost; A Closer Look at Cost Push Inflation, 2005-2015
Samuel R Russell
Rising unit labor costs suggest that cost push inflation is at work in the economy provided that output per hour is not keeping pace with unit labor cost growth. In this study, I look at the long term trends in both metrics over the period 2005-2015. I also look at the output per hour and unit cost trends for the period 2009-2015 to see if the 2008 recession impacted these cost and output trends. If output per hour is rising faster than unit costs. Productivity at the margin is increasing and cost push inflation is declining. If the converse is true, cost push inflation is rising in the national economy. Both quarterly and yearly geometric growth rates in both cost and output metrics are calculated for the above time periods. The geometric growth rates are then used to determine the direction of cost push inflation.
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Parameter Identification in Structured Discrete-Time Uncertainties without Persistency of Excitation
Ouboti Djaneye-Boundjou
Concurrent Learning has been previously used in continuous-time uncertainty estimation problems and adaptive control to solve the parameter identification problem without requiring persistently exciting inputs. Specifically selected past data are jointly combined with current data for adaptation. Here, we extend the parameter identification problem results of Concurrent Learning for structured uncertainties in the continuous-time domain to the discrete-time domain. Alike the continuous-time case, we show that, in discrete-time, a sufficient, testable on-line and less restrictive condition compared to persistency of excitation guarantees global exponential stability of the parameter error when using Concurrent Learning.
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Portfolio Weighting Strategies for a concentrated portfolio of Consumer Discretionary stocks: An Empirical Analysis, 2010-2015
Alexander Kubalski, Margaret E. Schutter
Recent interest by investment managers in Portfolio Weighting Strategies other than market capitalization has led to a rapid increase in fundamental based indexing. In their study I use the price dynamics of firms relative to the market (S&P 500) to weight a 10 stock portfolio of Consumer Discretionary firms. The weighting model is based on the capture ratio of the price changes for each stock compared to the S&P 500. In particular, an upside/downside capture ratio is developed for each stock based on a years worth of daily price changes. The following hypotheses are tested: 1) Firms with higher upside/downside capture ratios have higher expected returns. 2) The Consumer Discretionary portfolio weighted by upside/downside capture ratios out performs the market and the Consumer Discretionary Sector. 3) The upside/downside capture ratio performs well against other portfolio weighting strategies.
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Portfolio Weights and Capture Ratio Analysis: A Look at Performance in the Consumers Staples Sector 2010-2015
Sam William Verrilli
Since the recession in 2008, the stock market has experienced periods of extreme volatility, with market moves of 200-400 points on almost a daily basis. One sector that should do well when market volatility is high and rising is consumer staples. In this study I use a dynamic pricing model to determine the portfolio weights for the 10 largest value weighted stocks in the consumer staples sector. The model relies on the upside/downside Capture Ratios (U/D) for each stock to calculate the portfolio weights and dollar investment in each stock. I test the following hypotheses: (1) Stocks with higher U/D ratios generate higher excess returns relative to the market, (2) The U/D weighted portfolio of consumer staples stocks outperforms the consumer staples sector (XLS), (3) The U/D weighted portfolio performance wise, compares favorably to other portfolio weighting strategies.
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Press Access Rights: Journalists Covering War and Seeking Information at Home
Megan E Burton, Alison R Cozad, Annette M Taylor
The Pentagon’s Law of War manual, updated in summer 2015, has indicated that journalists could be viewed as “unprivileged belligerents” by the U.S. military during wartime, which has raised concern by First Amendment proponents and journalists nationwide. Megan Burton explores analyzes journalists’ legal efforts to cover wars in the past, as well as previous agreements between the press and Department of Defense, in order to predict how courts might resolve future conflicts between the press and the DOD. Alison Cozad examines sunshine laws in Ohio and California to see how state governments approach and comply with requests for information. By looking at court challenges, rulings and sunshine laws, we can get an idea of how these two states compare with their approaches to freedom of information.
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Producer Prices, Cost-Push-Inflation and Stock Market Returns
Anthony J. Bello
Although the Fed looks at the Consumer Price Index (CPI) and the Personal Consumption Expenditure index (PCE) as the key measures of inflation, in this study I focus my attention on Producer Prices (PPI) as a leading indicator of inflation in final goods produced. I want to test three hypotheses. First there is a high pass through rate for prices in the 4 basic stages of production identified by the Bureau of Labor Statistics (BLS). Using regression analysis to measure the pass through rate, I expect the b coefficients to be greater than zero and close to one. This would indicate that a cost-push inflation process is working at the producer price level. I also want to test the hypothesis that out-of-sample forecasting models of cost-push inflation at the various stages of production are both efficient and stable with acceptable levels of forecast error. Finally, I want to test the hypothesis that stock market prices co vary with producer prices. An inverse relationship suggests that rising factor costs cause the aggregate supply curve to shift upwards and to the left, lowering or reducing the rate of GDP growth, which results in a decline in stock market prices. A direct relationship suggests that factor costs are rising because of demand pull inflationary forces in the economy, leading to rising stock market prices.
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RE (CELL) LCD: A Feasibility Study on Recycling Cell Phone LCD
Abdulaziz Alotaibi, Christopher C. Beaschler, Siddharth N. Rathod, Matt S. Shea
Liquid Crystal Displays (LCD) are used in a magnitude of devices and have now become the norm in products that require a screen, such as, cell phones, computers, televisions, tablets, and more. However, many of these technologies are becoming outdated leading towards the issue of exponential growth of waste with a lack of technology set in place for proper recycling. Most of research literatures on LCD recycling are of electronic products and e-waste in general rather than cell phones in particular. Few studies on recycling of cell phone LCD have been accomplished. Since everyday around 300,000 mobile phones are sent to trash in United States alone, the recycling of LCD of cell phones is still a challenge for recyclers. In this paper four main topics will be discussed: Establishing need of recycling of LCD due to its environmental impacts, increasing number of LCD usage with time, current EoL (End of Life) process and challenges associated with it in terms of environment, economy and social aspects. By our findings, we are aiming to examine the sustainable feasibility of recycling LCD of cell phones comparing with other LCD products. Our approach for obtaining data for LCD of cell phones is to simulate details from other LCD products (LCD Monitor, LCD PC, LCD TV) such as main elements, recovery of substances, energy required to produce, etc.Finally, we will conclude with the observations with important considerations for a holistic approach to make LCD recycling of cell phones feasible. The results aim to enable recyclers to add confidence in LCD recycling of cell phones and also for researchers to extend this work with innovative ways and cost-effective approach in future.
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Renew Your Interest...So your best potential can come to Light! Examining the Effectiveness of Academic Renewal Course & Coaching (ARCC)
Shanon C. Davis
This research explores how the seven week academic intervention course, Academic Renewal Course and Coaching (ARCC) at the University of Dayton, affects student learning development and the parallel to decreasing attrition. The objective of this research was to extract the academic intervention practices and strategies that work best to increase academic performance amongst students who are academically and motivationally challenged. It also explains how and why student learning is affected when the appropriate conditions and resources aren’t identified and/or utilized by students. Academic intervention program assessment of ARCC is the all-encompassing purpose of this research. Through qualitative and quantitative data collection, the assessment revealed how effective ARCC is for students. Through personal interviews with former ARCC participants, the data showed how student’s sense of belonging, self-efficacy, and self-authorship are affected, along with transitional college adjustments. Students also shared that they gained additional knowledge about learning styles, learning environments, time management techniques, and note taking strategies. Post ARCC cumulative GPA reports revealed that students benefited from the course well into their collegiate career. This data, in combination with personal interviews revealed that students attributed their long term success to their ARCC involvement, as the course served as tool to get them back on track and fully acclimated. to college requirements.
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Reporter's Privilege in the 21st Century
Patrick R Mcadams, Ebony A Munday, Annette M Taylor
Journalists have been subpoenaed and otherwise pressured to give up information and sources more times in recent years than any other period of time. Most states have shield laws for reporters, but efforts to pass a federal shield law have thus far failed. With this in mind, Patrick McAdams analyzes cases in the 2nd and 6th U.S. Circuit Court of Appeals since the turn of this century to establish the legal landscape of reporters’ privilege in these regions, and considers whether it is time for a federal shield law. Ebony Munday examines reporter’s shield laws in New Jersey and Ohio and compares how courts in each state handle challenges to journalists' efforts to protect sources.
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Research exercise: Amplifying Signals via Riboswitch Biosensors
Annastacia C. Bennett
The Air Force is always in search of new and efficient ways to protect the lives of their Airman and equipment. Biosensors are self-sufficient, natural systems that can report a signal based on the presence of a specific molecule. However, biosensors are limited by a low signal output. Here we describe how a biological amplification circuit, loosely based on concepts similar to electrical circuitry, will be used to produce and amplify a signal. The biosensor consists of sensing cells and reporter cells that are ‘wired’ together via quorum-sensing signal molecules. The sensing cells contain a riboswitch that activates the reporter cells only when in the presence of a ligand specific to the riboswitch. When compared to a riboswitch with direct control of expression, the amplification circuit was able to increase the amount of fluorescence generated. The amplification circuit also increased the sensitivity of the riboswitch, resulting in fluorescent signal production at much lower ligand concentrations. Lastly, the amplification circuit reduced the time required for the reporter cells to produce a fluorescent signal output.
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Research exercise: Best Model for Forecasting Future Sales of Company X
Amal I Alsomali, Rabab O Alzahrani
In this project we try to forecast the future sales of some American Company depending on the data provided on their website. We will use the techniques learned in our time series class (MTH 544) to try to come up with the best model on this real life data.
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Research exercise: The Development of a First Year Chemistry Laboratory
Leslie M. Porter
The purpose for this project was to redesign a past General Chemistry Laboratory experiment with emphasis on student learning objectives in support of lecture material. The experiment was first introduced into the second semester CHM124L course in 1997 as “Preparation and Investigation of Salt Solutions”. For the Fall 2016 curriculum, the modified experiment will be conducted in the first semester General Chemistry course CHM123L as “Equilibrium of Salt Solutions”. This experiment was chosen for modification because the concept of equilibrium, especially when applied to pH of salt solutions, is one that many students find difficult to understand. Experiencing the concept in lab is one way for the students to increase their understanding. Our approach with the modification of the experiment was to step back and view the procedure from a first year student’s point of view. To take into account their laboratory skill set as a first semester student and to consider background material they would be exposed to by the time the experiment was conducted. The goal was to create an experiment that lead students through a thought provoking qualitative and quantitative analysis of the subject.
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Research exercise: Tired of rubber landfills: From environmental hazard to sustainable use potential of discarded tire materials
Keith Brian Abankwah, Abdulelah Bajbair Bajbair, Feras A. Melibari, Bjoern Oliver Winter
How do you dispose of your used car tires? Although answering this on an individual level doesn’t seem to be hard, the sheer amounts of old tires disposed of as a byproduct of a growing car market in the United States have grown to make a significant impact on the environment. Each year, over 350 million tires are consumed and only about 70% of the accruing waste is properly recycled at their end of life. The storage of tires in landfills, or improper methods of disposal, such as burning and waterbody displacement causes hazardous emissions and health problems. For instance, the improper storage of tire stockpiles can lead to potential breeding grounds for mosquitoes and other disease-carrying insects and rodents as stockpiled tires are often holding water for long periods of time. Burning tires can negatively affect air, water and soil and produce toxic chemicals, such as benzene and polycyclic aromatic hydrocarbons (PAH). Tire stockpiles set on fire, whether by chance or on purpose, produce enormous amounts of heat and are so hard to extinguish that some fires have been continuing to burn for extended periods. A prominent example was a fire in Rhinhart, Winchester, Virginia that continued to burn for nine months on end. Against this background, an assessment of the magnitude of tire disposal related impacts in the near future is performed within different scenarios while providing insight into current practices of tire disposal. In contrast to this, alternative processes that process tires into fuel and activated carbon are looked upon. In a subsequent life-cycle analysis, the production of fuel and carbon from tires is compared to the fabrication of the same products from natural resources in order to show environmental advantages of recycling tires in these processes.
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Research exercise: VectorWorks for Light Design
Mary F Lamperis
VectorWorks is a 3-dimensional modeling program like Autodesk or SolidWorks, yet unlike these, it excels when dealing with light design. Integration of Autodesk files into VectorWorks is currently possible, yet not adaptable when working with the further light design tools that VectorWorks has to offer. Being adept in this program while working in theatrical lighting design will be a tremendous advantage. One of these main tools lets you output a data chart necessary when implementing the lighting layout in the theatre itself. Normally transferring the data from an Autodesk file to a usable chart takes several hours and includes multiple human errors. With these advantages in mind, I created a layout of Boll Theatre that not only gives me experience, but also provides a updated model to aid future light designers.
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Research exercise: Vocation and Arts
Elizabeth A. Abrams, Randy T. Brackman, Renee Katharine Brown, Ian N. Cali, Kieran L. Campbell, Jessica L. De Groot, Blaise T. Eby, Alexandra M. Hallagan, Claire Elizabeth Sanfilippo, Virginia Abigail Saurine, Thomas Brewster Tappel, Marsha Turner, Mary Elizabeth Turner, Sarah Frances Wood
The Chaminade Scholars 'Vocation and Arts' class have been preparing all semester for an in-depth pilgrimage to Italy in May. The interactive Stander Symposium experience introduces participants to the Art, Culture and Spirituality of Assisi and Rome. Included is an exhibit of students' photography and "Awakening to Beauty publication.
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Research Experience for Teacher (RET) program: Inspire the Next Generation in Advanced Manufacturing and Materials
Caroline Margaret Boeckman, Emma A Cipriani
This research was conducted at the University of Dayton through a research program for teachers. The goal of this program was to have pre-service and experienced teachers gain more knowledge about engineering concepts so that they could incorporate them into their classroom. The objective of this research was to perform tensile testing of Fused Deposition Modeling materials to determine variability due to orientation and print machine. The Ultem samples tested were produced on six different printers. Within these samples, there were three different orientations tested; ZXY, YZX, and YXZ. We tested the tensile strength using an Intron 4486. Each member of the group was involved in the testing process, which included sample testing, recording data, placing extensometer, analyzing data, and running the Bluehill program. During the analysis of our data, we calculated the Ultimate Tensile Strength (UTS), Stress at Failure, Strain at Failure, and Elastic Modulus. After testing multiple samples of each orientation and the different printers, we found that YZX has the highest ultimate tensile strength (UTS) and strain of all orientations tested. ZXY had the weakest UTS and strain. Statistically, each orientation from the various printers has similar tensile properties.
The Brother Joseph W. Stander Symposium recognizes and celebrates academic excellence in undergraduate and graduate education. This annual event provides an opportunity for students from all disciplines to showcase their intellectual and artistic accomplishments and embody the University's mission to be a "community of learners." This collection contains a sampling of the more than 200 projects presented each year during the symposium.
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