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Modeling Human Capital Impact On The Development Of The Iraqi Oil Industry, Bushra A. Ali, Hazim M.Gorgees, Raghad I.Kathum

Baghdad Science Journal

Iraq has the second largest proven oil reserves in the world. According to oil experts, it is expected that the Iraq's reserves to rise to 200+ billion barrels of high-grade crude. Oil is a strategic commodity for producing and exporting countries in general, and Iraq in particular, as demonstrated by the international experience that oil is an important means to achieve economic growth, an important tool in the overall economic, social and political development. It is also an important source of hard currency for any national economy and a means to connect the local economy and the global economy. In …

Eye Detection Using Helmholtz Principle, Hanaa M. Ahmed, Shrooq R. Hameed

Baghdad Science Journal

Eye Detection is used in many applications like pattern recognition, biometric, surveillance system and many other systems. In this paper, a new method is presented to detect and extract the overall shape of one eye from image depending on two principles Helmholtz & Gestalt. According to the principle of perception by Helmholz, any observed geometric shape is perceptually "meaningful" if its repetition number is very small in image with random distribution. To achieve this goal, Gestalt Principle states that humans see things either through grouping its similar elements or recognize patterns. In general, according to Gestalt Principle, humans see things …

Is Contact Nucleation Caused By Pressure Perturbation?, Fan Yang, Will Cantrell, Alexander Kostinski, Raymond Shaw, Andrew M. Vogelmann

Michigan Tech Publications, Part 1

The reason why ice nucleation is more efficient by contact nucleation than by immersion nucleation has been elusive for over half a century. Six proposed mechanisms are summarized in this study. Among them, the pressure perturbation hypothesis, which arose from recent experiments, can qualitatively explain nearly all existing results relevant to contact nucleation. To explore the plausibility of this hypothesis in a more quantitative fashion and to guide future investigations, this study assessed the magnitude of pressure perturbation needed to cause contact nucleation and the associated spatial scales. The pressure perturbations needed were estimated using measured contact nucleation efficiencies for …

Points Of Pride, Georgia Southern University

Points of Pride (2013-2023)

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Exploration Of Variable Importance And Variable Selection Techniques In Presence Of Correlated Variables, Sailee Rumao

Theses

Variable selection is of utmost importance in aviation safety where the data contains a large number of highly correlated predictors and flight safety has to be accurately predicted. Variable selection methods were not encouraged in medical research where the subject-matter knowledge is limited. For this reason, Genell, Anna Nemes, Szilard Steineck, Gunnar Dickman, Paul W. (2010) conducted simulated study to compare Bayesian Model Averaging and stepwise regression to motivate medical researchers to conduct automatic variable selection on their regression models and encourage them to take advantage of it. In this era of data science and Machine Learning, we have extended …

Analyzing Influences On U.S. Baby Name Trends, Laura Ludwig, Mallory Hightower, Daniel W. Engels, Monnie Mcgee

SMU Data Science Review

In this paper, an analysis is presented of the changing baby namespace and a model is created for predicting if a name's popularity is trending up or down. Just as cultures and societies change over time, baby names evolve to reflect these changes. By analyzing name phonemes and historical influences, one can better understand the underlying causes of the changing name trend. Utilizing the U.S. Social Security Administration (SSA) name registry and historical figure data sets, the influence of historical figures and name pronunciation on the naming trend was examined. Two neural networks were created to predict name trend, one …

Identifying Customer Churn In After-Market Operations Using Machine Learning Algorithms, Vitaly Briker, Richard Farrow, William Trevino, Brent Allen

SMU Data Science Review

This paper presents a comparative study on machine learning methods as they are applied to product associations, future purchase predictions, and predictions of customer churn in aftermarket operations. Association rules are used help to identify patterns across products and find correlations in customer purchase behaviour. Studying customer behaviour as it pertains to Recency, Frequency, and Monetary Value (RFM) helps inform customer segmentation and identifies customers with propensity to churn. Lastly, Flowserve’s customer purchase history enables the establishment of churn thresholds for each customer group and assists in constructing a model to predict future churners. The aim of this model is …

Personalized Detection Of Anxiety Provoking News Events Using Semantic Network Analysis, Jacquelyn Cheun Phd, Luay Dajani, Quentin B. Thomas

SMU Data Science Review

In the age of hyper-connectivity, 24/7 news cycles, and instant news alerts via social media, mental health researchers don't have a way to automatically detect news content which is associated with triggering anxiety or depression in mental health patients. Using the Associated Press news wire, a semantic network was built with 1,056 news articles containing over 500,000 connections across multiple topics to provide a personalized algorithm which detects problematic news content for a given reader. We make use of Semantic Network Analysis to surface the relationship between news article text and anxiety in readers who struggle with mental health disorders. …

A Data Science Approach To Defining A Data Scientist, Andy Ho, An Nguyen, Jodi L. Pafford, Robert Slater

SMU Data Science Review

In this paper, we present a common definition and list of skills for a Data Scientist using online job postings. The overlap and ambiguity of various roles such as data scientist, data engineer, data analyst, software engineer, database administrator, and statistician motivate the problem. To arrive at a single Data Scientist definition, we collect over 8,000 job postings from Indeed.com for the six job titles. Each corpus contains text on job qualifications, skills, responsibilities, educational preferences, and requirements. Our data science methodology and analysis rendered the single definition of a data scientist: A data scientist codes, collaborates, and communicates – …

Fall Commencement Program, December 17, 2019, Coastal Carolina University

Commencement Programs

Program of Commencement Exercises at Coastal Carolina University.

Resin And Magnetic Nanoparticle-Based Free Radical Probes For Glycan Capture, Isolation, And Structural Characterization, Kimberly Fabijanczuk, Kaylee Gaspar, Nikunj Desai, Jungeun Lee, Daniel A. Thomas, J. L. Beauchamp, Jinshan Gao

Department of Chemistry and Biochemistry Faculty Scholarship and Creative Works

By combining the merits of solid supports and free radical activated glycan sequencing (FRAGS) reagents, we develop a multifunctional solid-supported free radical probe (SS-FRAGS) that enables glycan enrichment and characterization. SS-FRAGS comprises a solid support, free radical precursor, disulfide bond, pyridyl, and hydrazine moieties. Thio-activated resin and magnetic nanoparticles (MNPs) are chosen as the solid support to selectively capture free glycans via the hydrazine moiety, allowing for their enrichment and isolation. The disulfide bond acts as a temporary covalent linkage between the solid support and the captured glycan, allowing the release of glycans via the cleavage of the disulfide bond …

Sandler Strengthens Collaborations With Brazilian Scientists, Ohio University College Of Arts & Sciences

All Forum Articles

No abstract provided.

Patton College Faculty Member Courtney Koestler Gives Edtalk On How Teaching Is Not Neutral (December 17, 2019), University Communications And Marketing

OHIO News Articles Archive

No abstract provided.

Paving The Road To College: Impacts Of Washington State Policy On Improving Equitable Participation In Dual Credit Courses, Havala Hanson

Interdisciplinary Studies

This dissertation evaluates early impacts of a state policy to increase participation in dual credit courses in Washington state through subsidizing the cost of college credits for underrepresented rural and low-income students, and through extending eligibility to earn dual credit to students in grade 10. This study evaluates both aspects of the policy, with emphasis on the impacts for underrepresented rural and low-income students, students of color, and English learners. It employs quasi-experimental designs to estimate the impact of the policy on intended outcomes. The study finds mixed early impacts of the policy. While no effects were found for students …

Answering Global Warming’S Hottest Debate: A Better Way To Tax Carbon, Saleh Husseini

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

Some of you are sick of hearing about it, some of you don’t really care, and the rest of you are probably the reason the first group is sick of hearing about it, but regardless of which category you fall into, one thing is certain: climate change is real and it’s already happening. With that said, I’m moving forward under the assumption that all of us here believe in science and understand this phenomenon to be largely a result of post-industrial anthropogenic activity. In which case, reducing our emissions is the only way to prevent climate change from becoming a …

Low Temperature Liquid Metal Batteries For Energy Storage Applications, Cameron A. Lippert, Kunlei Liu, James Landon, Susan A. Odom, Nicolas E. Holubowitch

Center for Applied Energy Research Faculty Patents

The present invention relates to a molten metal battery of liquid bismuth and liquid tin electrodes and a eutectic electrolyte. The electrodes may be coaxial and coplanar. The eutectic electrolyte may be in contact with a surface of each electrode. The eutectic electrolyte may comprise ZnC1₂:KCI.

Individual Based Modeling And Analysis Of Pathogen Levels In Poultry Chilling Process, Zachary Mccarthy, Ben Smith, Aamir Fazil, Jianhong Wu, Shawn D. Ryan, Daniel Munther

Mathematics and Statistics Faculty Publications

Pathogen control during poultry processing critically depends on more enhanced insight into contamination dynamics. In this study we build an individual based model (IBM) of the chilling process. Quantifying the relationships between typical Canadian processing specifications, water chemistry dynamics and pathogen levels both in the chiller water and on individual carcasses, the IBM is shown to provide a useful tool for risk management as it can inform risk assessment models. We apply the IBM to Campylobacter spp. contamination on broiler carcasses, illustrating how free chlorine (FC) sanitization, organic load in the water, and pre-chill carcass pathogen levels affect pathogen levels …

Major Lower Paleozoic Horizons Of The Southern Illinois Basin, John B. Hickman

Report of Investigations--KGS

The geology exposed at the surface in the southern Illinois Basin has been mapped in great detail by countless workers over the past century. With the exception of limited and scattered exposures in incised river valleys, the oldest rocks exposed outside of the Jessamine, Nashville, and Ozark Domes surrounding the Illinois Basin are Mississippian in age. Extensive deposits of Cambrian–Devonian sediments occur in the subsurface above crystalline basement in this region, however. All available data for the region were analyzed to produce a single, comprehensive set of interpretations. The data used in this study include 1:24,000-scale geologic quadrangle maps, oil …

Pairwise Comparisons Of Shrub Change Across Alpine Climates Show Heterogeneous Response To Temperature In Dall's Sheep Range, Mark Melham

Natural Resources

Encroachment of woody vegetation into alpine and high latitude systems complicates resource use for specialist wildlife species. We converted Landsat imagery to maps of percent shrub cover in alpine areas of Dall's sheep (Ovis dalli dalli) range. We then compared percent cover to interpolated climate data to infer drivers of shrub change between the 1980s and 2010s and determine if that change is occurring at different rates in climatically distinct alpine areas. We identified areas spatially interconnected by their mean July temperature intervals and compared their rates of shrub change, finding net rates of shrub growth were higher at temperatures …

Phylogenetic Relationships Within The Western United States Species Of Lepidium L., Robert W. Lichvar

Chemistry and Biochemistry

The genus Lepidium L. is one of two global genera in the Brassicaceae. The genus has been arranged by species (geographic regions) worldwide, but no formal levels below the genus are recognized. Recent efforts to evaluate phylogenetic relationships have been performed at the global scale for about 20 percent of the species in the genus. The genus is recognized as having subtle and variable morphological characteristics to define species limits. Several nuclear and chloroplast DNA methods have been used to construct phylogenetic relationships within the genus. Incongruences between various phylogenetic trees indicate likely hybridization and/or hybrid origin of multiple species …

Modeling Volcanic Ash And Sulfur Dioxide With The Weather Research Forecasting With Chemistry (Wrf-Chem) Model, Sean D. Egan

Chemistry and Biochemistry

The Weather Research Forecasting with Chemistry (WRF-Chem) model is capable of modeling volcanic emissions of ash, sulfur dioxide and water vapor. Here, it is applied to eruptions from three volcanoes: the 2008 eruption of Kasatochi Volcano in Alaska, the 2010 eruption of Eyjafjallajökull in Iceland and the 2019 eruption of Raikoke in the Kurile Islands. WRF-Chem's ability to model volcanic emissions dispersion is validated through comparison of model output to remote sensing, in situ and field measurements. A sensitivity of the model to modeled plume height is discussed. This work also modifies the base WRF-Chem code in three ways and …

Engineering Education Professional Development For Teachers In The Delta Greely School District, Jennifer Dougherty

Education

Over the last two decades engineering has become a new focus in many science curricula, in part due to the emphasis on STEM (science, technology, engineering, and math) education. Most teachers lack training or education in engineering and are not adequately prepared to implement effective engineering education. This research identifies the needs and constraints of one district, the Delta Greely School District (DGSD), in Delta Junction, AK (approximately 750 students district-wide). Surveys were distributed to fifty teachers and five administrators to gather information on attitudes and beliefs surrounding engineering education. Focus groups were conducted with teachers and administrators to better …

Video Feedback Efficacy At Romig Middle School, Christopher D. Fliss

Education

Romig Middle School in Anchorage, Alaska, is consistently ranked within the top ten most diverse middle schools in the nation. The main objective of this research will be to determine if video production students meet learning objectives better or worse with video feedback given. The secondary goal is to measure the efficacy of using video feedback as a delivery source of evaluation to students at the eighth-grade level. The methods involve pre-and-post class surveys on the feedback methods and quantitative data gathered on improved technique. The results of this research will guide the use of video feedback in video production …

In‐Situ Extraction And Impregnation Of Black Walnut Husk Into Polyethylene Film Using Supercritical Carbon Dioxide With An Ethanol Modifier, Jonathan Wenzel, Veronica R. Moorman, Lihua Wang, Isaiah Spencer-Williams, Mitchell Hall, Cheryl Samaniego, Michelle Ammerman

Chemistry & Biochemistry Publications

Walnuts are commonly cultivated for their kernel, which is a rich source of antioxidant phenolic compounds. The husk likewise contains antioxidant and antimicrobial compounds, but is typically discarded without further processing. Antioxidant compounds are useful in creating active packaging films, but typically decompose at melt extrusion temperatures in polymer processing. Due to carbon dioxide's low critical point and ability to swell polymer films, supercritical carbon dioxide may be used to impregnate phenolic compounds into polymers. For this study, a novel technique is used to simultaneously produce walnut husk extracts and impregnate the extract into polymer films in the same batch …

Student Voice: A Qualitative Study Investigating Students' Experiences And Teachers’ Perceptions Of Instructional Practice Across Learning Levels, Lisa A. Moore

Doctor of Education in Educational Leadership Dissertations

Using a 360-degree approach, this qualitative case study compared the experiences of students and the perceptions of teachers concerning instructional practice across learning levels in a northwest Georgia high school. The purpose was to use student voice to inform administrators of teachers’ and students’ classroom engagement. Using nine math classes across three learning levels (foundations algebra, on-level algebra, and advanced algebra), the study used open-ended surveys to collect self-reported data from students and teachers to identify common themes of learning and teaching practices. The common themes identified agreements and collaborative strategies between students and teachers at three different learning levels …

Thinking Beyond The Text: Examining Teachers’ Dispositions Of Critical Thinking In Elementary Social Studies Classrooms Through The Use Of Socratic Seminars, Jacqueline Hunter

Doctor of Education in Teacher Leadership Dissertations

Research shows that students need opportunities to engage in strategies that will enhance their critical thinking skills. With pressure on teachers to prepare students for state assessments, teachers teach to the test, not giving students chances to dialogue with their peers. To produce citizens in a genuinely democratic world, the voices of students is crucial. Socratic Seminar is a classroom methodology that can foster critical thinking skills and cultivate a democratic learning environment. The purpose of this participatory action research study is to examine teachers’ dispositions of critical thinking in elementary social studies classrooms as students think beyond the text. …

Structural And Geochronologic Constraints On The Duration Of The Picuris Orogeny And Demise Of An Orogenic Plateau, Northern Nm, Daniel J. Young

Earth and Planetary Sciences ETDs

Metasedimentary and igneous basement rocks in northern New Mexico record episodic pulses of tectonism during cratonic growth from 1.8 to 1.38 Ga. Continued challenges involve parsing the deformational features attributable to the Yavapai Orogeny (1.71-1.68 Ga), Mazatzal orogeny (1.66-1.60 Ga), and Picuris orogeny (1.5-1.38 Ga) in this region and understanding how older structures may have been overprinted and reactivated to explain the observed strain. This paper presents regional cross-sections of the 1.7 Ga Vadito, 1.68 to 1.50 Ga Hondo, and 1.5-1.45 Ga Trampas groups of the Picuris Mountains and Rio Mora areas of northern New Mexico combined with new geochronologic …

Prudhoe Bay West End Gas Lift Supply Optimization, Irwin Chou

Engineering

The western extension of Alaska's Prudhoe Bay, known collectively as Eileen West End (EWE), operates under a gas lift pressure supply constraint. This constraint is largely contributed by two factors: the extensively long gas lift supply line that stretches across the western field and the large number of production wells offtaking gas lift to stay online or enhance production. The gas lift supply line is approximately 18.5 miles long and provides gas lift to 200+ production wells. This results in a pressure drop severe enough to start hindering production on the western most side of the field as low gas …

Multistate Ornstein-Uhlenbeck Space Use Model Reveals Sex-Specific Partitioning Of The Energy Landscape In A Soaring Bird, Joseph M. Eisaguirre

Mathematics and Statistics

Understanding animals’ home range dynamics is a frequent motivating question in movement ecology. Descriptive techniques are often applied, but these methods lack predictive ability and cannot capture effects of dynamic environmental patterns, such as weather and features of the energy landscape. Here, we develop a practical approach for statistical inference into the behavioral mechanisms underlying how habitat and the energy landscape shape animal home ranges. We validated this approach by conducting a simulation study, and applied it to a sample of 12 golden eagles Aquila chrysaetos tracked with satellite telemetry. We demonstrate that readily available software can be used to …

“Treat Me Covalently” – New Tools To Improve Covalent Drug Design For Advancement Of Cancer Treatments, Yuliya Mazo

Student Theses and Dissertations

The goal of this project was to investigate the complex mechanism of covalent bonding among different molecules and their targets in a modeling software ICM-Pro. Specifically, it included the identification of fundamental aspects of a covalent bonding mechanism of the Michael addition reaction. Michael addition reaction of electrophilic α, β-unsaturated carbonyl compounds with a nucleophilic cysteine residue in thymidylate synthase, papain, and EGFR tyrosine kinase were examined. Thymidylate synthase and EGFR were chosen because they are important targets in the treatment of various types of cancer. In order to find the most optimal parameters, identification and assessment of the effect …