Digital Commons Network^™

Workflow Simulation Aware And Multi-Threading Effective Task Scheduling For Heterogeneous Computing, Vasilios Kelefouras, Karim Djemame

School of Engineering, Computing and Mathematics

No abstract provided.

Long-Term Variation Of Summer Phytoplankton Communities In An Urban Lake In Relation To Lake Management And Climate Conditions, Yuan Xiao Grund

Dissertations and Theses

Eutrophication is one of the primary factors causing harmful cyanobacteria blooms in freshwater lakes; climate change such as warmer temperature can potentially further increase both frequency and intensity of blooms. This study investigated the long-term changes in water quality and summer phytoplankton assemblages in Oswego Lake, OR, in relation to lake management practices (e.g., hypolimnetic aeration and alum treatments), as well as climatic and regional meteorological conditions. Both water quality and phytoplankton assemblages were sampled biweekly during summer seasons between 2001 and 2013. The concentrations of total phosphorus (TP), soluble reactive phosphorus (SRP) and total nitrogen (TN) decreased 66%, 93% …

Word Sense Disambiguation Using Fuzzy Semantic-Based String Similarity Model, Amir Abd-Rashid, Shuzlina Abdul-Rahman, Nor Nadiah Yusof, Azlinah Mohamed

Malaysian Journal of Computing (MJoC)

Sentences are the language of human communication. This communication medium is so fluid that words and meaning can have many interpretations by readers. Besides, a document that consists of thousands of sentences would be tough for the reader to understand the content. In this case, computer power is required to analyse the gigantic batch size of the text. However, there are several arguments that actively discuss regarding the output generated by a computer toward the meaning of the passage in terms of accuracy. One of the reasons for this issue is the existing of the ambiguous word with multiple meanings …

Rock And Age Relationships Within The Talkeetna Forearc Subduction Complex In The Nelchina Area, Southern Alaska, John D. Barefoot

Geosciences

Subduction-zone processes are challenging to study because of the rarity of good exposures and the complexity of rock relationships within accretionary prisms. In south-central Alaska, a remarkably well-preserved exposure of subduction-related outcrops is located at the foot of Nelchina Glacier. Here, the crystalline basement of the Talkeetna volcanic arc is in contact with the mélange of its associated accretionary complex along the Border Ranges fault. A new zircon U-Pb age of an amphibolite from the Talkeetna arc mid-crustal basement just north of the fault is 188.9 ± 2.2 Ma, coincident with previously published dates from the mafic section of the …

Mismatch Between Older Adults’ Expectation And Smartphone User Interface, Chui Yin Wong, Rahimah Ibrahim, Tengku Aizan Hamid, Evi Indriasari Mansor

Malaysian Journal of Computing (MJoC)

Smartphones have become ubiquitous communication tools for everybody, including older adults to stay connected with their family and access to information. However, mobile operators and developers mainly target the youngster cohort in mobile industry. With the rising ageing population, smartphone user interface and some mobile apps are not designed to cater the needs of older adults. This could hinder them from fully utilizing the smartphone functions and its services. A mobile-user interaction study using mixed-methods (questionnaire, interview and observation) was conducted to examine usability and user interface design issues of smartphone and mobile apps among 80 older adults in Malaysia. …

A Classroom Activity For Teaching Kohlberg’S Theory Of Moral Development, Cheryl L. Carmichael, Anna M. Schwartz, Maureen Coyle, Matthew H. Goldberg

Publications and Research

In two studies, we demonstrate an engaging classroom activity that facilitates student learning about Kohlberg’s theory of moral development by using digital resources to foster active, experiential learning. In addition to hearing a standard lecture about moral development, students watched a video of a morally provocative incident, then worked in small groups to classify user comments posted in response to the video according to Kohlberg’s six stages. Students in both studies found the activity enjoyable and useful. Moreover, students’ scores on a moral development quiz improved after completing the activity (Study 1), and students who completed the activity in addition …

Groundwater Model Parameter Estimation With Simultaneous And Sequential Use Of Hydraulic Head And Travel Time Measurements, Mohsen Kheirabadi

Master's Theses

This study is an effort to investigate two parameter estimation approaches in groundwater modeling, sequential and combined. Most researches imply that simultaneous use of flow and transport observations would be more beneficial in parameter estimation, however some other researchers rise questions about this approach. They believe due to the differing geological properties of aquifers and consequently differing mathematical basis of groundwater flow compared to transport simultaneous use of different observations might not be useful in every cases. Despite the fact that parameter estimation or inverse modeling is not a new method in groundwater modeling, most modelers tend to use forward …

Volume 23, Number 2, Winter 1986 Speaker And Gavel

Speaker & Gavel

Complete digitized issue (volume 23, issue 2, Winter 1986) of Speaker & Gavel.

School Of Education Hooding Ceremony & Reception Program, December 2018, Lindenwood University

College of Education: Hooding Ceremony

School of Education Hooding Ceremony & Reception Program, December 2018

Coordinated Unmanned Aircraft System (Uas) And Ground-Based Weather Measurements To Predict Lagrangian Coherent Structures (Lcss), Peter J. Nolan, James Pinto, Javier González-Rocha, Anders Jensen, Christina N. Vezzi, Sean C. C. Bailey, Gijs De Boer, Constantin Diehl, Roger Laurence Iii, Craig W. Powers, Hosein Foroutan, Shane D. Ross, David G. Schmale Iii

Mechanical Engineering Faculty Publications

Concentrations of airborne chemical and biological agents from a hazardous release are not spread uniformly. Instead, there are regions of higher concentration, in part due to local atmospheric flow conditions which can attract agents. We equipped a ground station and two rotary-wing unmanned aircraft systems (UASs) with ultrasonic anemometers. Flights reported here were conducted 10 to 15 m above ground level (AGL) at the Leach Airfield in the San Luis Valley, Colorado as part of the Lower Atmospheric Process Studies at Elevation—a Remotely-Piloted Aircraft Team Experiment (LAPSE-RATE) campaign in 2018. The ultrasonic anemometers were used to collect simultaneous measurements of …

Riverbank Filtration Impacts On Post Disinfection Water Quality In Small Systems—A Case Study From Auburn And Nebraska City, Nebraska, Matteo D'Alessio, Bruce Dvorak, Chittaranjan Ray

Daugherty Water for Food Global Institute: Faculty Publications

Small water systems can experience a fluctuating quality of water in the distribution system after disinfection. As chlorine is the most common disinfectant for small systems, the occurrence of disinfection byproducts (DBPs) represents a common problem for these systems. Riverbank filtration (RBF) can be a valuable solution for small communities located on riverbanks. The objectives of this study were to evaluate (i) the improvements in water quality at two selected RBF systems, and (ii) the potential lower concentrations of DBPs, in particular, trihalomethanes (THMs), in small systems that use RBF. Two small communities in Nebraska, Auburn and Nebraska City, using …

The Impact Of A Collaborative Data-Inquiry Culture, As Promoted By The Harvard University Data Wise Improvement Process, On Student Achievement., Kenneth I. Barrie

CUP Ed.D. Dissertations

The study examined the impact of a collaborative data-inquiry culture, promoted by the Harvard University Data Wise Improvement Process (DWIP), on student achievement. 58 teacher surveys and PARCC scores for 2, 631 students were taken from four middle schools in a minority district. A quantitative method and a quasi-experimental one-sample-pretest-posttest design were used. Analysis involved Chi-Squared tests followed by pairwise comparisons. Statistical significance was determined using standard alpha of p ppppppp< 0.00556. Future research should focus on a larger school sample, data on the student level, and the impact of the DWIP on school culture.

A Fuzzy Based Model For Standardized Sustainability Assessment Of Photovoltaic Cells, Muath Bani Salim, Dervis Emre Demirocak, Nael Barakat

Mechanical Engineering Faculty Publications and Presentations

In this paper, a new environmental sustainability indicator (ESI) is proposed to evaluate photovoltaic (PV) cells utilizing Life Cycle Analysis (LCA) principles. The proposed indicator is based on a model that employs a fuzzy logic algorithm to combine multiple factors, usually used in multiple LCAs, and produce results allowing a comprehensive interpretation of LCA phase sub-results leading to standardized comparisons of various PV cells. Such comparisons would be essential for policymakers and PV cell manufacturers and users, as they allow for fair assessment of the environmental sustainability of a particular type of PV with multiple factors. The output of the …

Ua45/6 Commencement Program, Wku Registrar

WKU Administration Documents

Commencement program listing graduates.

A Snowball's Chance: Debt Snowball Vs. Debt Avalanche, Evan Mcallister

Senior Honors Projects, 2010-2019

Traditional mathematical analysis states that the most efficient way to pay off interest-bearing consumer debt is to pay the individual debts in order from largest to smallest interest rate. In doing this, the debtor will eliminate the largest sources of interest first, thus shortening the overall time-to-pay. This method is known as the “Debt Avalanche.” The “Debt Snowball” method, popularized in large part by investor-author David Ramsey, recommends that consumers pay debts in order from smallest to largest, regardless of interest rate. In this paper, I conduct an empirical analysis of the Federal Reserve’s Survey of Consumer Finance (SCF), calculating …

Avid Tutor Training: Strengthening Connections Between Field Experience And Coursework, Laura H. Vandemark

Senior Honors Projects, 2010-2019

Advancement via Individual Determination (AVID) is a national college preparation program that seeks to help students who have the potential to attend college but need extra support and access to resources. This project explores the current connection between the Harrisonburg City Public Schools (HCPS) AVID program and the JMU Middle and Secondary Education teacher candidates placed in AVID classrooms for an undergraduate field experience. Overall, this project seeks to better prepare and improve the effectiveness of JMU students serving as AVID tutors. After reviewing the current training as well as anonymous end of semester course reflections from MSSE 371 students, …

Stem Stories, December 2018, #3, Brooke Wiese

STEM Stories

Faculty Profile - Alexa Sedlacek

Holy Cross Magazine, Vol. 53, No. 1, Winter 2019, College Of The Holy Cross

Holy Cross Magazine

Theodore V. Wells Jr. ’72 Receives Honorary Degree
By Evangelia Stefanakos

Syllabus: Stranger Things — Gothic Old and New
with Jonathan Mulrooney, professor of English
By Meredith Fidrocki

For Us, For Others, For Action
Alumni reflect on a half-century of mission and personal impact of the Black Student Union
By Melissa Shaw

Black Student Union Celebrates 50 Years at Holy Cross
Nearly 300 alumni and current students spent a weekend honoring the group’s history and influence
By Jane Carlton

Examining the Political Machine from the Inside-Out
Thanks to political veterans Tim Bishop ’72 and Peter Flaherty ’87, Holy Cross students …

Vortex Motions Around A Vertically Vibrating Cylinder In Oscillatory Flows, Symphony Chakraborty, Tzu-Wen Lin, Ming-Jyh Chern

Journal of Marine Science and Technology–Taiwan

Numerical simulations of the vortex-induced vibration (VIV) on a circular cylinder in an oscillatory flow were conducted using the direct-forcing immersed boundary (DFIB) method. VIV of structures is a practical engineering problem. Many engineers have devoted themselves to research on the prevention of VIV, which can cause severe damage to offshore construction equipment and structures. Fluctuating hydrodynamic force induces vibration of structures because of the vortex around the structure. This vibration causes structural failure due to the lock-in phenomenon. A phenomenon termed “springing” (a secondorder wave effect caused by superposition of the incident waves and the reflected waves or other …

Detection, Containment And Scaling Relations Of Near Source Explosionsin Granite Through Moment Tensor Representations, Mason Macphail

Earth Sciences Theses and Dissertations

The Source Phenomenology Experiment (SPE) was a series of nine, single-fired chemical explosions within the Morenci Copper mine in Arizona. Its purpose was to design, detonate, record and analyze seismic waveforms from these single-fired, partially and fully contained explosions. Ground motion data from the SPE are analyzed in this study to assess the uniqueness of the source representation of these explosions and its ability to resolve yield and depth when containment and geology or physical parameters of the source region may have a range of possible values. The P-wave velocities (V_p) at the test site are well constrained …

2018 Fall - Commencement Program, Office Of The Registrar, East Tennessee State University

ETSU Commencement Ceremonies and Programs

No abstract provided.

169th Commencement, Fall

Commencement Programs

No abstract provided.

Social Media And Academic Performance: Assisting Academic Achievement For English Language Learners, Eduardo D. Moreno

CUP Ed.D. Dissertations

The purpose of this quantitative retrospective, causal-comparative study was to examine what, if any, statistically significant difference existed between Measures of Academic Progress (MAP) mathematical and reading achievement of English Language Learners (ELL) in a school using Seesaw—a social media platform—and those in a school not using Seesaw in an elementary school setting in Northern California. The population of ELL third and fourth-grade students within each participating school was 52, for a total of 104 participants. All ELL students in this study come from Spanish speaking homes and were Spanish speakers. Collection of data occurred through the MAP Growth assessments. …

Community College Students’ Perceived Value Of High School Career And Technical Education Program Experiences, Martin Douglass

CUP Ed.D. Dissertations

The goal of this qualitative, narrative inquiry study was to explore the voices of community college students who have taken Career and Technical Education (CTE) while in high school, investigate if they perceived value from their high school CTE classes, and determine how those experiences impacted their high school and college educations (cf. Association for Career and Technical Education, 2016; American Institutes for Research, 2013; Southern Regional Education Board, 2008). The central research question for the dissertation was: What value do local community college students believe their high school Career and Technical Education program participation provided? The screening survey had …

Arts Integration In The Public Elementary School General Education Classroom, Norma Quinones

Theatre & Dance ETDs

ABSTRACT

In 2017, the U.S. Department of Education’s Nations Report Card disclosed performance trends among fourth and eighth grade students in New Mexico. Fourth graders were significantly below the national average in math and reading, while eighth graders were also performing below the national average (U.S. Department of Education). How can New Mexico public elementary school students fulfill their learning potential? Extensive research shows that arts integrated instruction is associated with student achievement. It outlines arts integration as a multidisciplinary form of teaching across the curriculum to transform teaching and learning at the elementary school level to change such statistics. …

Precaspian Isthmus Emergence Triggered The Early Sakmarian Glaciation (Paleontologic, Sedimentologic And Geochemical Proxies), Vladimir I. Davydov

Geosciences Faculty Publications and Presentations

The sub-meridional seaway that connected Paleo-Arctic and Paleo-Tethys basins was one of the most important geographical attributes of the Late Paleozoic Pangea landscape, paleogeography and paleoclimate. Existing models about the timing of the disconnection of the Paleo-Arctic and the Paleo-Tethyan oceans is very controversial and poorly documented. Warm-water benthic foraminifera (WWBF) were utilized to establish the precise timing of the closure of the Urals-Precaspian-Paleo-Tethys Seaway (UPTS) during Cisuralian time. The WWBF of Paleo-Tethys and those of the Ural-Precaspian Basins during the Gzhelian-Asselian, display a considerably high level of similarity. Beginning from the Sakmarian, the faunas of these two regions became …

Optical Micro-Seismometer Based On Evanescent Field Perturbation Of Whispering Gallery Modes, Jaime Da Silva

Mechanical Engineering Research Theses and Dissertations

This thesis proposes a light-weight, compact, and accurate optical micro-seismometer that could be used in many applications, such as planetary exploration. The sensor proposed here is based on the principle of whispering gallery optical mode (WGM) resonance shifts of a dielectric micro-resonator due to disturbances of its evanescent field. The micro-seismometer could be used in place of the traditional bulky seismometers. The design of a waveguide-resonator and mechanical structure to disturb the evanescent field are presented. A proof-of-concept a seismometer model that uses a 5µm ring resonator is numerically tested with actual seismic data. The results show that a WGM-based …

Classical And Quantum Aspects Of Electric-Magnetic Duality Rotations In Curved Spacetimes, Ivan Agullo, Adrian Del Rio, Jose Navarro-Salas

Faculty Publications

It is well known that the source-free Maxwell equations are invariant under electric-magnetic duality rotations, F→Fcosθ+F sinθ. These transformations are indeed a symmetry of the theory in the Noether sense. The associated constant of motion is the difference in the intensity between self-dual and anti-self-dual components of the electromagnetic field or, equivalently, the difference between the right and left circularly polarized components. This conservation law holds even if the electromagnetic field interacts with an arbitrary classical gravitational background. After reexamining these results, we discuss whether this symmetry is maintained when the electromagnetic field is quantized. The answer is in the …

2018 Fall Commencement, Harding University

Commencement Programs

Program for the Harding University Commencement on December 15.

Commencement Speaker: Joel Anderson

Photophysical Characterization And Wavelength Tuning Of Natural And Synthetic Oxobacteriochlorins And Biohybrids, Don Hood

Arts & Sciences Graduate Student Theses and Dissertations

ABSTRACT OF THE DISSERTATIONPhotophysical Characterization and Wavelength Tuning of Natural and Synthetic Oxobacteriochlorins and BiohybridsByDonald L. HoodDoctor of Philosophy in ChemistryWashington University in St. Louis, 2018Dr. Dewey Holten, ChairpersonHerein is discussed the theoretical and practical unpinnings of photophysical behaviors and kinetic constants for tetrapyrrole macrocycles, to wit, porphyrins, chlorins, and bacteriochlorins. Understanding the characteristic photophysical response of tetrapyrroles to changes in environment or substituents is important to designing synthetic chromophores with tunable absorption wavelengths and for preparing useful biohybrids of natural photosynthetic light antennas combined with unnatural chromophores attached to the light antenna oligomers. Synthetic oxobacteriochlorins provide simpler synthetic pathway …