Digital Commons Network^™

An Investigation Of The Relationship Between Grades And Learning Modes In An Introductory Research Methods Course, Donna L. Roberts, John C. Griffith, Emily Faulconer, Beverly L. Wood, Soumyadip Acharyya

Publications

Education researchers have conducted studies on the relationship of learning mode to student performance, but few studies have evaluated pass rate, grade distribution and student withdrawal rate in an introductory research methods course. In this study, researchers examined 2,097 student grades from the 2015-2016 academic year to determine if such a relationship existed. In this study, learning mode was significantly related to failure rate, grade distribution and withdraw rate. Synchronous video home students had a significantly higher failure rate than traditional In-Person or online students. Online student grade distributions were significantly different than In-Person classroom, synchronous video home or synchronous …

Impacts Of Freight Consolidation And Truck Sharing On Freight Mobility, Tieming Liu, Chaoyue Zhao

Publications

The trucking industry is an important sector of the U.S. economy. However, it is quite fragmented, hindering the efficiency of cargo transportation and the ability for small carriers to identify demands to fill full truck loads. The focus of this research is to study models and algorithms in order to aid online freight marketplaces to identify efficient consolidation strategies. To accomplish this aim, a new mixed integer programming model for the pickup and delivery problem has been developed. The model is geared towards identifying effective freight consolidation opportunities. A branch-and-cut algorithm to solve the model was also developed. The model …

Cybersecurity In The Maritime Domain, Gary C. Kessler

Publications

In 2017 and 2018, the maritime industry saw a record number of attempted—and many successful—frauds via email, phishing, or other means. Demonstrated and actual attacks on vessel networks, communication systems, and navigation systems have become practically routine. Port and shipping line networks are increasingly vulnerable to what appears to be increasingly targeted attacks against maritime systems.

Cape Elizabeth Culvert And Habitat Assessment Study, Steve Harding, Jake Aman, Matthew Craig, Robert Malley, Maureen O'Meara

Publications

Executive Summary:

In early 2017, Jake Aman, representing the Wells National Estuary Research Reserve (WNERR), met with the Cape Elizabeth Public Works Director and Town Planner to talk about culverts. Jake shared aerial photos of culverts located in the Spurwink Marsh where scouring of adjacent habitat areas was evident. He inquired if the town was considering any culvert replacements, in which case WNERR and The Nature Conservancy might be able to partner with the town to promote a habitat sensitive replacement. The outcome of the meeting was a jointly sponsored assessment of major town culverts, including those located in the …

A Performance Comparison Of Machine Learning Algorithms For Arced Labyrinth Spillways, Fernando Salazar, Brian M. Crookston

Publications

Labyrinth weirs provide an economic option for flow control structures in a variety of applications, including as spillways at dams. The cycles of labyrinth weirs are typically placed in a linear configuration. However, numerous projects place labyrinth cycles along an arc to take advantage of reservoir conditions and dam alignment, and to reduce construction costs such as narrowing the spillway chute. Practitioners must optimize more than 10 geometric variables when developing a head–discharge relationship. This is typically done using the following tools: empirical relationships, numerical modeling, and physical modeling. This study applied a new tool, machine learning, to the analysis …

Long Reach Lane At Long Marsh, Harpswell, 2018 Post-Project Monitoring Report; Year 5 Of 5, Matthew Craig

Publications

No abstract provided.

Efficacy Of The Localized Aviation Mos Program In Ceiling Flight Category Forecasts, Douglas D. Boyd, Thomas A. Guinn

Publications

(1) Background: Flying in instrument meteorological conditions (IMC) carries an elevated risk of fatal outcome for general aviation (GA) pilots. For the typical GA flight, aerodrome-specific forecasts (Terminal Aerodrome Forecast (TAF), Localized Aviation Model Output Statistics Program (LAMP)) assist the airman in pre-determining whether a flight can be safely undertaken. While LAMP forecasts are more prevalent at GA-frequented aerodromes, the Federal Aviation Administration (FAA) recommends that this tool be used as supplementary to the TAF only. Herein, the predictive accuracy of LAMP for ceiling flight categories of visual flight rules (VFR) and instrument flight rules (IFR) was determined. (2) Methods: …

The Science Project Portfolio, Joan Hedman, Brooke A. Whitworth

Publications

The phrase science fair project likely conjures up images of students working independently on smoldering model volcanoes, catapults, and Rube Goldberg contraptions. To create their projects, students and teachers blindly follow a set of seemingly incomprehensible steps, assembling various pieces. This process continues until the due date arrives, when all the pieces are packaged up for the science fair. Teachers are then expected to assess all the projects in a timely manner while somehow continuing to deliver their curriculum. Eventually, the student receives feedback and, often, a semester-making grade. By that time, everyone is exhausted and relieved it’s over.

A Hybrid Experimental‐Computational Modeling Framework For Cardiovascular Device Testing, Ethan Kung, Masoud Farahmand, Akash Gupta

Publications

Significant advances in biomedical science often leverage powerful computational and experimental modeling platforms. We present a framework named physiology simulation coupled experiment (“PSCOPE”) that can capitalize on the strengths of both types of platforms in a single hybrid model. PSCOPE uses an iterative method to couple an in vitro mock circuit to a lumped-parameter numerical simulation of physiology, obtaining closed-loop feedback between the two. We first compared the results of Fontan graft obstruction scenarios modeled using both PSCOPE and an established multiscale computational fluid dynamics method; the normalized root-mean-square error values of important physiologic parameters were between 0.1% and 2.1%, …

Situation-Aware Left-Turning Connected And Automated Vehicle Operation At Signalized Intersections, Sakib Mahmud Khan, Mashrur Chowdhury

Publications

One challenging aspect of the Connected and Automated Vehicle (CAV) operation in mixed traffic is the development of a situation-awareness module for CAVs. While operating on public roads, CAVs need to assess their surroundings, especially the intentions of non-CAVs. Generally, CAVs demonstrate a defensive driving behavior, and CAVs expect other non-autonomous entities on the road will follow the traffic rules or common driving behavior. However, the presence of aggressive human drivers in the surrounding environment, who may not follow traffic rules and behave abruptly, can lead to serious safety consequences. In this paper, we have addressed the CAV and non-CAV …

Fraught With Friction, Brittany Westman, Brooke A. Whitworth

Publications

In this activity, a question is posed to second-grade students and they are asked to make predictions to answer it: “How will different surfaces affect the distance a toy vehicle travels?” Students observe how different surfaces affect the distance traveled by a toy car and are able to amend their predictions. They are then asked to think of reasons why the vehicle was affected the way it was. During this stage of the lesson, students are led to contemplate their understandings of science concepts, and teachers are able to assess changes in student understanding as a result of discussions and …

Accounting Education In Greece During The Gfc (2009-2016), Dimitrios V. Siskos

Publications

The structure of accounting education in Greece, and in the world, is facing nowadays many significant challenges since the global financial crisis has left behind many critical educational burdens. At the same time, there is an increase in accounting omissions and malpractices of ethics both in the public and in the private sector of Greece. These undoubtedly contributed to massive unemployment, high poverty rate, crime and other social ills experienced in the country. This motivated the study on restructuring accounting education by devising a new educational framework that can be applied to Greek universities and colleges with the purpose of …

Book Review: Exoplanets : Hidden Worlds And The Quest For Extraterrestrial Life, T. D. Oswalt

Publications

This document is Dr. Oswalt’s review of Exoplanets : Hidden Worlds and the Quest for Extraterrestrial Life. Harvard, 2018. 254p bibl index, 9780674976900 $24.95, 9780674988897

Action Of Complex Symplectic Matrices On The Siegel Upper Half Space, Keshav R. Acharya, Matt Mcbride

Publications

The Siegel upper half space, Sn, the space of complex symmetric matrices, Z with positive definite imaginary part, is the generalization of the complex upper half plane in higher dimensions. In this paper, we study a generalization of linear fractional transformations, ΦS, where S is a complex symplectic matrix, on the Siegel upper half space. We partially classify the complex symplectic matrices for which ΦS(Z) is well defined. We also consider Sn and Sn as metric spaces and discuss distance properties of the map ΦS from Sn to Sn and Sn respectively.

2019 Seminary Scholarship Symposium Program, Seventh-Day Theological Seminary

Publications

Program brochure.

Student Involvement & Leadership Center: Impact Report Spring 2015 To Fall 2018, Erik Dickamore, Amanda M. Hagman, Spencer Bitner, Nathan Laursen, Mitchell Colver

Publications

Leadership and involvement programs are an integral part of the student experience on University campuses. Volunteers and scholars within leadership and involvement serve their peers by providing rewarding events that unify the student body. Volunteers and scholars also benefit through opportunities for personal exploration and growth. Working with SILC allows students to serve and lead in a unique way. This report explored the association between student participation in leadership and involvement programs, and student persistence to the next term at Utah State University. METHODS: Students participation was captured by rosters across all SILC programs. Students who had a record of …

Value Of Certification: The Occupational Safety And Health Professional, Cheryl Marcham

Publications

This presentation provides information about the importance and value of attaining certification to determine health and safety issues in the environment. It also explains the advantages of attaining certification from different organizations, salary-wise. Attaining a certificate gives individuals the standardized knowledge needed to determine if situations/substances are harmful to human well being or the environment.

Relaxation-Based Coarsening For Multilevel Hypergraph Partitioning, Ruslan Shaydulin, Jie Chen, Ilya Safro

Publications

Multilevel partitioning methods that are inspired by principles of multiscaling are the most powerful practical hypergraph partitioning solvers. Hypergraph partitioning has many applications in disciplines ranging from scientific computing to data science. In this paper we introduce the concept of algebraic distance on hypergraphs and demonstrate its use as an algorithmic component in the coarsening stage of multilevel hypergraph partitioning solvers. The algebraic distance is a vertex distance measure that extends hyperedge weights for capturing the local connectivity of vertices which is critical for hypergraph coarsening schemes. The practical effectiveness of the proposed measure and corresponding coarsening scheme is demonstrated …

(Mis)Alignments In Mentorship: Exploring Challenges To Preservice Science Teacher Preparation, Mandy Biggers, Alison Riley Miller, Laura Zangori, Brooke A. Whitworth

Publications

The mentoring relationships between preservice teachers and their cooperating teachers have been established as critical to the retention or attrition of novice teachers (Clarke, Triggs, & Nielsen, 2014), yet little research has been conducted to examine what factors around mentor teacher selection and support are most salient to creating strong mentoring structures. In this study, we investigated how four U.S. states (one in the Southwest, one in the Northeast, one in the Midwest, and one in the South) recruit mentor teachers for secondary science preservice teachers, what requirements the mentor teachers must possess, how mentor teachers are incentivized to serve …

Application Of A Hybrid Statistical–Dynamical System To Seasonal Prediction Of North American Temperature And Precipitation, Sarah Strazzo, Dan C. Collins, Andrew Schepen, Q. J. Wang, Emily Becker, Liweli Jia

Publications

Recent research demonstrates that dynamical models sometimes fail to represent observed teleconnection patterns associated with predictable modes of climate variability. As a result, model forecast skill may be reduced. We address this gap in skill through the application of a Bayesian postprocessing technique—the calibration, bridging, and merging (CBaM) method—which previously has been shown to improve probabilistic seasonal forecast skill over Australia. Calibration models developed from dynamical model reforecasts and observations are employed to statistically correct dynamical model forecasts. Bridging models use dynamical model forecasts of relevant climate modes (e.g., ENSO) as predictors of remote temperature and precipitation. Bridging and calibration …

An Overview Of Cryptography (Updated Version 24 January 2019), Gary C. Kessler

Publications

There are many aspects to security and many applications, ranging from secure commerce and payments to private communications and protecting health care information. One essential aspect for secure communications is that of cryptography. But it is important to note that while cryptography is necessary for secure communications, it is not by itself sufficient. The reader is advised, then, that the topics covered here only describe the first of many steps necessary for better security in any number of situations.

Latitude And Longitude Dependence Of Ionospheric Tec And Magnetic Perturbations From Infrasonic-Acoustic Waves Generated By Strong Seismic Events, M. D. Zettergren, J. B. Snively

Publications

A numerical study of the effects of seismically generated acoustic waves in the ionosphere is conducted using a three-dimensional (3-D) ionospheric model driven by an axisymmetric neutral atmospheric model. A source consistent with the 2011 Tohoku earthquake initial ocean surface uplifting is applied to simulate the subsequent responses. Perturbations in electron density, ion drift, total electron content (TEC), and ground-level magnetic fields are examined. Results reveal strong latitude and longitude dependence of ionospheric TEC, and of ground-level magnetic field perturbations associated with acoustic wave-driven ionospheric dynamo currents. Results also demonstrate that prior two-dimensional models can capture dominant meridional responses of …

Cosmic Ray Albedo Neutron Decay (Crand) As A Source Of Inner Belt Electrons: Energy Spectrum Study, Kun Zhang, X. Li, H. Zhao, Q. Schiller, L. Khoo, Y. Khoo, Z. Xiang, R. Selesnick, M. A. Temerin, J. A. Sauvaud

Publications

Cosmic Ray Albedo Neutron Decay (CRAND) has been recently confirmed as a source of energetic electrons at the inner edge of the inner belt by the Colorado Student Space Weather Experiment (CSSWE)mission. Here we use observations from the Detection of Electro‐Magnetic Emissions Transmitted from Earthquake Regions (DEMETER) mission, to investigate the CRAND contribution to inner belt electrons quantitatively over a broad energy range (~100–800 keV). Spectral fitting analysis supports the conclusion that CRAND is the most important electron source at the inner edge of the innerbelt. For the first time, we show that CRAND is the dominant source of >250‐keV …

Online, Classroom And Video Learning – Differences In Student Performance?, Donna L. Roberts, John C. Griffith, Emily K. Faulconer

Publications

No abstract provided.

Thermal Structure Of The Mesopause Region During The Wadis-2 Rocket Campaign, Raimund Wörl, Boris Strelnikov, Timo P. Viehl, Josef Höffner, Pierre-Dominique Pautet, Michael J. Taylor, Yucheng Zhao, Franz-Josef Lübken

Publications

This paper presents simultaneous temperature measurements by three independent instruments during the WADIS-2 rocket campaign in northern Norway (69^◦ N, 14^◦ E) on 5 March 2015. Vertical profiles were measured in situ with the CONE instrument. Continuous mobile IAP Fe lidar (Fe lidar) measurements during a period of 24 h, as well as horizontally resolved temperature maps by the Utah State University (USU) Advanced Mesospheric Temperature Mapper (AMTM) in the mesopause region, are analysed. Vertical and horizontal temperature profiles by all three instruments are in good agreement. A harmonic analysis of the Fe lidar measurements shows the presence …

Reaching For The Future - Building A Professional Trajectory, Julie A. Luft, Brooke A. Whitworth

Publications

Science teachers need to consider how they want to grow professionally. Thinking about one’s future involves identifying the knowledge, practices, and attributes needed in a new role. By using a framework such as the science education trajectory (SET), teachers can more easily consider their professional options and work strategically toward them.

The report on science teacher learning (NASEM 2015) emphasizes that teachers need strategic and coherent learning opportunities. Until there are defined pathways toward different positions, science teachers will need to organize their learning opportunities in such a way that they can learn intentionally and progressively. This is important to …

Spacetime Groups, Ian M. Anderson, Charles G. Torre

Publications

A spacetime group is a connected 4-dimensional Lie group G endowed with a left invariant Lorentz metric h and such that the connected component of the isometry group of h is G itself. The Newman-Penrose formalism is used to give an algebraic classification of spacetime groups, that is, we determine a complete list of inequivalent spacetime Lie algebras, which are pairs (g,η), with g being a 4-dimensional Lie algebra and η being a Lorentzian inner product on g. A full analysis of the equivalence problem for spacetime Lie algebras is given which leads to a completely algorithmic solution to the …

Modeling And Measuring Students' Computational Thinking Practices In Science, Golnaz Arastoopour Irgens, Sugat Dabolkar, Connor Bain, Philip Woods, Kevin Hall, Hillary Swanson, Michael Horn, Uri Wilensky

Publications

In recent decades, computational tools and methods have become pervasive in mathematical and scientific fields (National Research Council, 2010a). Tools such as mathematical and statistical models have expanded the range of phenomena that are explored and have become necessary for analyzing increasingly large data sets across disciplines (National Academy of Sciences, National Academy of Engineering, & Institute of Medicine, 2007). With these advances, entirely new fields such as computational statistics, neuroinformatics, and chemometrics have emerged. The varied applied uses of computational tools across these fields have shown that future scientists will not only need to know how to program, but …

Asynchronous Electronic Feedback For Faculty Peer Review: Formative Feedback That Makes A Difference, Chad Rohrbacher

Publications

This case study at Embry-Riddle Aeronautical University - Daytona Beach campus (ERAU-DB) describes the process of facilitating a faculty peer observation model that uses asynchronous electronic feedback through the Teaching Partners program offered by the Center for Teaching and Learning Excellence (CTLE). This practical, hybrid model of peer observation builds on practices found in current models and uses digital recording and web-based software to encourage faculty feedback that will positively impact their pedagogical practice. The results of this study suggest to truly cultivate a dialogue between faculty and/or education developer in the process, the goals should be clearly stated, the …

Stem And Sustainability: Creating Aviation Professional Change Agents, P. Clark, Doreen Mcgunagle, L. Zizka

Publications

With the evolution of the workforce and the growing needs of the aviation industry, a clear need for concrete sustainability initiatives and actions have emerged. Sustainability in this sense becomes a matter of survival. For this reason, in this chapter, we will attempt to close three gaps in current sustainability studies: Theory vs practice, intention vs behavior, and education vs workplace.

Our purpose is to develop a ‘simple’ strategy for integrating all three pillars of sustainability into STEM HE programs that create authentic engagement and real buy-in from the students that are then replicated in the workplace. Based on the …