Digital Commons Network^™

Novel Ofdm Transmission Scheme Using Generalized Prefix With Subcarrierindex Modulation, Yusuf Acar

Turkish Journal of Electrical Engineering and Computer Sciences

The cyclic prefix (CP) is a prefix technique widely used in orthogonal frequency division multiplexing (OFDM) systems in order to eliminate the intersymbol interference (ISI) caused by the dispersion of wireless channels. However, CP reduces the number of symbols that can be transmitted in one OFDM symbol. Therefore, CP is one of the bottlenecks of OFDM systems limiting their spectral efficiency (SE). This limitation on the SE of the classical CP-based OFDM system is the main motivation for this work to introduce a novel method. In this paper, the design of a new CP structure, which is based on the …

Determining Overfitting And Underfitting In Generative Adversarial Networksusing Fréchet Distance, Enes Eken

Turkish Journal of Electrical Engineering and Computer Sciences

Generative adversarial networks (GANs) can be used in a wide range of applications where drawing samples from a data probability distribution without explicitly representing it is essential. Unlike the deep convolutional neural networks (CNNs) trained for mapping an input to one of the multiple outputs, monitoring the overfitting and underfitting in GANs is not trivial since they are not classifying but generating a data. While training set and validation set accuracy give a direct sense of success in terms of overfitting and underfitting for CNNs during the training process, evaluating the GANs mainly depends on the visual inspection of the …

A Case Study On Player Selection And Team Formation In Football With Machinelearning, Di̇dem Abi̇di̇n

Turkish Journal of Electrical Engineering and Computer Sciences

Machine learning has been widely used in different domains to extract information from raw data. Sports is one of the popular domains for researchers to work on recently. Although score prediction for matches is the most preferred application area for artificial intelligence, player selection, and team formation is also an application area worth working on. There are some studies in the literature about player selection and team formation which are examined in this study. The study has two important contributions: First one is to apply seven different machine learning algorithms on our dataset to find the best player combination for …

Analysis Of Optical Gyroscopes With Vertically Stacked Ring Resonators, Dooyoung Hah

Turkish Journal of Electrical Engineering and Computer Sciences

Without any moving part, optical gyroscopes exhibit superior reliability and accuracy in comparison to mechanical sensors. Microring-resonator-based optical gyroscopes emerged as alternatives for bulky conventional Sagnac interferometer sensors, especially attractive for applications with limited footprints. Previously, it has been reported that planar incorporation of multiple resonators does not bring about improvement in sensitivity for a given area because the increase in Sagnac phase accumulation does not outrun the increase of area. Therefore, it was naturally suggested to consider vertical stacking of ring resonators because then, the resonators can share the same footprint. In this work, sensitivity performances of such configurations …

Can Urinary Biomarkers Predict Acute Kidney Injury In Newborns With Critical Congenitalheart Disease?, Özgün Uygur, Özge Altun Köroğlu, Reşi̇t Ertürk Levent, Eser Sözmen, Firat Ergi̇n, Yüksel Atay, Mehmet Yalaz, Mete Akisü, Ni̇lgün Kültürsay

Turkish Journal of Medical Sciences

Background/aim: Congenital heart disease (CHD) is the most common congenital malformation group and is the leading cause of newborn mortality in developed countries. Most of the infants with CHD develop preoperative or postoperative acute kidney injury (AKI). Acute kidney injury may develop before the serum creatinine rise and oliguria. Urinary biomarkers such as kidney injury molecule-1 (KIM-1), neutrophil gelatinase-associated lipocalin (NGAL), interleukin (IL)-18, and cystatin C may predict AKI in patients with critical CHD (CCHD) before the serum creatinine rise. In this study, we aimed to determine the AKI incidence among newborn patients with CCHD and investigate the predictivity of …

Adaptation Of Metaheuristic Algorithms To Improve Training Performance Of Aneszsl Model, Şi̇fa Özsari, Mehmet Serdar Güzel, Gazi̇ Erkan Bostanci, Ayhan Aydin

Turkish Journal of Electrical Engineering and Computer Sciences

Zero-shot learning (ZSL) is a recent promising learning approach that is similar to human vision systems. ZSL essentially allows machines to categorize objects without requiring labeled training data. In principle, ZSL proposes a novel recognition model by specifying merely the attributes of the category. Recently, several sophisticated approaches have been introduced to address the challenges regarding this problem. Embarrassingly simple approach to zeroshot learning (ESZSL) is one of the critical of those approaches that basically proposes a simple but efficient linear code solution. However, the performance of the ESZSL model mainly depends on parameter selection. Metaheuristic algorithms are considered as …

A New Approach: Semisupervised Ordinal Classification, Ferda Ünal, Derya Bi̇rant, Özlem Şeker

Turkish Journal of Electrical Engineering and Computer Sciences

Semisupervised learning is a type of machine learning technique that constructs a classifier by learning from a small collection of labeled samples and a large collection of unlabeled ones. Although some progress has been made in this research area, the existing semisupervised methods provide a nominal classification task. However, semisupervised learning for ordinal classification is yet to be explored. To bridge the gap, this study combines two concepts ?semisupervised learning? and "ordinal classification" for the categorical class labels for the first time and introduces a new concept of "semisupervised ordinal classification". This paper proposes a new algorithm for semisupervised learning …

Development And Validation Of A Scale To Explore Pre-Service Teachers’ Sense Of Preparedness, Engagement And Self-Efficacy In Classroom Teaching, Jessy Abraham, Tania Ferfolja, Aaron Sickel, Anne Power, Christina Curry, Denise Fraser, Karin Mackay

Australian Journal of Teacher Education

Raising the quality of initial teacher education can make an important contribution to raising the overall quality of the school system. In Australia, the National Framework for Professional Standards for Teaching is used as a common framework to set standards for the accreditation of teacher education programs. However, institution-wise assessments need to be carried out regularly to explore the quality of preparation pre-service teachers receive and to what extent they feel well prepared to enter teaching. This will enable teacher education programs to implement strategies to strengthen the link between university coursework and professional practice of pre service teachers. This …

Academic Goal Orientation: New Insights And Cultural Adaptation Of Academic Goal Orientation Questionnaire Into The Turkish Language, Fuat Findikoglu, Mehmet Gurol

Georgia Educational Researcher

This study aims to review and provide new perspectives for academic goal orientation. The study introduces first chronological history of goal orientation and depicts how goal orientation evolved into a new construct in learning from the discussion on motivational factors. At first, this study isolates goal orientation from motivation and provides novel insights into goal orientation as a separated factor affecting learning. Then, this study provides analyses of the adaptation work of the academic goal orientation questionnaire into the Turkish language. The translated scale was applied to a sample of 729 undergraduate students, 376 (51.6%) of which were female and …

Rethinking Cyberspace Operations: Widespread Electromagnetic Jamming By States Indicates Cyber Interference Is Not A Use Of Force, Vincent L. Defabo

Journal of Air Law and Commerce

Determining if a cyberspace operation by a State actor is an act of war (i.e., use of force under the U.N. Charter) has led to a misguided approach. In 2012, twenty legal experts that published the Tallinn Manual got it wrong. By utilizing the “effects-based approach” they attempted to equate the effects a cyber operation causes to that of a missile to determine if a use of force has occurred. While their underlying premise, that existing international law should be applied to cyber operations, was sound, the analytical approach is flawed.

This paper explores how the analytical model used by …

International Aviation Law And Pandemic, Timothy Ravich

Journal of Air Law and Commerce

Commercial airplanes are vectors of infectious disease, advancing, if not sparking, global epidemics and potentially pandemics by exporting pathogens from endemic areas of the world to non-endemic places. For example, according to the global scientific community, the Zika virus was introduced to the Americas by air travel. Researchers also believe that infected mosquitos on international flights contributed to the worldwide spread of malaria, Middle East Respiratory Syndrome, and the West Nile virus. Most recently, governmental authorities worldwide, in addition to issuing national or local shelter-in-place orders, closed their borders and grounded nearly all international air travel on account of the …

Cell Phone Searches By Employers, Marc Chase Mcallister

Nebraska Law Review

This Article presents a framework for analyzing cell phone searches by employers. The framework proposed in this Article is structured around two primary variables: (1) whether the employee whose cell phone is searched works for a public or private employer, and (2) whether the cell phone is owned by the employer or employee. The starting point for developing a framework for cell phone searches is the Fourth Amendment to the United States Constitution, which prohibits “unreasonable searches and seizures” by state actors, including public employers. To be reasonable, a Fourth Amendment search or seizure must ordinarily be justified by a …

Hidden In Plain Sight: Kerri S. And Nebraska’S Non-Court Child Welfare System, Claudia W. Brock

Nebraska Law Review

The Nebraska Supreme Court recently held that procedural due process protections only attach for parents in non-court arrangements when the state causes a familial separation through explicit agency coercion. The Court’s holding is consistent with the narrow approach of the Sixth and Seventh Circuits in determining when a family’s due process rights attach in non-court involved child welfare cases. This narrow approach may be contrasted with the broader approach of the Third Circuit, which holds that due process protections attach whenever the state alters the custodial relationship between a parent and child. This Comment will argue that the broad standard …

Supplemental Index To Volume 99

Nebraska Law Review

INDEX BY TITLE

INDEX BY AUTHOR

INDEX BY SUBJECT

You Can Call Me Al: Regulating How Candidates’ Names Appear On Ballots, Peter Nemerovski

Nebraska Law Review

In electoral politics, names matter. Studies and anecdotal evidence show that candidates whose names suggest a certain ethnic heritage— for example, an Irish-sounding surname in Chicago, or a Hispanic name in South Florida—outperform candidates without such names, and that “American-sounding” names and names with positive connotations can give candidates a leg up. Therefore, candidates for public office often seek to run under the name they regard as most electorally advantageous. Election boards, secretaries of state, and ultimately courts are often called upon to decide whether a particular candidate can run for office under a particular name.

This Article looks at …

Masthead And Table Of Contents, Vol. 100, No. 1

Nebraska Law Review

No abstract provided.

Exploring The Impact Of Composite Material Fires And Associated Response Protocol On The Material Analysis During An Aircraft Accident Investigation, Flavio A. C. Mendonca, Natalie Zimmermann, Peng Hao Wang, Julius Keller

Publications

Metals, beginning in the 1930s, have been frequently used as the material of choice for aircraft construction (Hallion, 1978; Jakab, 1999). Common metals used in the aviation industry range from alloyed and heat-treated aluminum to titanium, magnesium, and superalloys, the latter used in specialized applications (Hallion, 1978; Mouritz, 2012). Nevertheless, a shift in aircraft construction – specifically in terms of the materials used – began in the 1970s, as composite materials were introduced into commercial aircraft (Mouritz, 2012). Among others, the increased use of composited materials was – and still is – propelled by the ability to manufacture comparative lightweight …

Competency-Based Education: A Framework For A More Efficient And Safer Aviation Industry, Flavio A. C. Mendonca, Julius Keller, Brian G. Dillman

Publications

Aircraft design and reliability as well as pilots’ education and training have steadily and significantly improved in the last 20 years. Nevertheless, high-profile accidents still occur, even when the aircraft and related systems are operating adequately. Controlled flight into terrain, runway incursion accidents, and loss of control in flight are examples of mishaps in which inadequate decision-making, poor leadership, and ineffective communication are frequently cited as contributing factors. Conversely, the investigation of accidents (e.g., US Airways Flight 1549, in the U.S. on Jan. 15, 2009) and serious incidents (e.g., TAM Linhas Aereas Flight 3756 in Brazil on June 17, 2011) …

White Paper On Engineering Controls For Bioaerosols In Non-Industrial/ Non-Healthcare Settings, Cheri L. Marcham, American Conference Of Governmental Industrial Hygienists

Publications

The list of disease pathogens that can be transmitted in the air is extensive. This list includes the common cold, SARS, measles, Hansen's disease (leprosy), polio, influenza, Legionella (Legionnaires’ disease and Pontiac fever), and tuberculosis (TB). TB, SARSCoV-1, avian influenza, varicella, and now SARS-CoV-2 all have received public notice due not only to their known or assumed ability to be transmitted in the air rapidly from one individual to another, but also for their virulence. Other bioaerosols that can be transmitted through the air include bacteria, fungal spores and fragments, dust mites, and pollen. This document was developed to address …

Writing A Literature Review Checklist, Jennifer Nader, Clara Volker

Publications

This checklist infographic is designed to help students organize their approach to writing their literature review.

Aviation English Assessment And Training, Robert Fowler, Elizabeth Mathews, Jena Lynch, Jennifer Roberts M.A.

Publications

Due to a significant global increase in demand for air travel, there has been a corresponding increase in demand for ab initio flight training. Thousands of international flight students seek admission to collegiate aviation programs in the United States and Canada every year. These international flight students come to the United States and Canada because flight training is nonexistent in their native countries. In fact, flight training in most of these countries is impossible due to airspace restrictions and onerous regulations. If there is flight training available in these countries, the cost is usually prohibitive compared to the cost in …

A Course In Context: Video Course Trailers, Emily Faulconer, Zachary Dixon, Laura Faulconer, John Griffith

Publications

This study reports the development of a “course trailer” video series that communicates the professional and academic value of general education courses’ core competencies and describes the results of a survey measuring the impact of those videos on student perception. While general education programs represent a staple of U.S. undergraduate education, enrolled students frequently misunderstand the nature and value of the programs’ core goals and or competencies. Universities are making increasing use of devices such as catalog descriptions, mission statements, course websites or blogs, and course trailer videos to communicate and clarify their general education competencies and values; however, little …

Cognitive Trajectory Of Proof By Contradiction For Transition-To-Proof Students, Darryl Chamberlain, Draga Vidakovic

Publications

History and research on proof by contradiction suggests proof by contradiction is difficult for students in a number of ways. Students’ comprehension of already-written proofs by contradiction is one such aspect that has received relatively little attention. Applying the cognitive lens of Action-Process-Object-Schema (APOS) Theory to proof by contradiction, we constructed and tested a cognitive model that describes how a student might construct the concept ‘proof by contradiction’ in an introduction to proof course. Data for this study was collected from students in a series of five teaching interventions focused on proof by contradiction. This paper will report on two …

Transitioning To An Active Learning Environment For Calculus At The University Of Florida, Darryl Chamberlain, Amy Grady, Scott Keeran, Kevin Knudson, Ian Manly, Melissa Shabazz, Corey Stone

Publications

In this note, we describe a large-scale transition to an active learning format in first-semester calculus at the University of Florida. Student performance and attitudes are compared across traditional lecture and flipped sections.

Being There For Your Students - Online Office & Office Hours, Emily Faulconer

Publications

Instructor presence personalizes the online learning experiences

• Persona – factors that build student’s impressions of you

• Social Presence – connections you foster

• Instructional Presence – how you guide students through learning

Critical Perseverance In Research, Emily Faulconer, Jeremy Ernst

Publications

A productive researcher maintains a healthy pipeline by setting goals and making a plan.

Know that rejection is a normal part of the research process for both funding and publishing.

• Funding venues are selective.
• Academic venues are selective.
• Reviewers and editors are human.
• You are human.
• Less than ideal pick of journal or funding source.
• Formatting oversight.
• Your work may need development.
• Hypothesis
• Methodology
• Analysis
• Lack of novelty
• Low priority topic

Working With Human Subjects: Data Access, Use, Storage, & Sharing, Emily Faulconer, Jeremy Ernst

Publications

Researchers must protect the rights, welfare, and safety of human research subjects.

Research: systematic investigation that develops generalizable knowledge Human Subjects: living individuals targeted by an investigator for conducting research by obtaining data through:

• intervention or interaction with the person
• identifiable personal information

Discussion Board Facilitation, Emily Faulconer

Publications

Setting expectations allows students to take responsibility for their learning Discussion Board Engagement Guidelines

• Participation
• Analysis and Interpretation
• Scholarly Dialogue Clear due dates Detailed rubrics Gradebook feedback and feedforward
• Explain your role and be visible
• Model your expectations Idea

Fracking Florida, Emily Faulconer

Publications

• Traditional Hydraulic Fracturing
• Why Frack?
• Why it’s Controversial
• Acid Fracking
• What’s in the Wastewater?
• Ethylene Glycol
• 2-Butoxyethanol
• Benzene
• So Where Does the Wastewater Go?
• “Halliburton Loophole”
• Drilling in Florida
• Timeline of Events at Collier-Hogan Well
• Lease Termination & Permit Revocation
• Frack Fluid used at Collier-Hogan Well
• Groundwater Monitoring Wells
• FDEP Tested 142 Analytes
• House Bills 71 & 157: Fracturing Chemical Usage Disclosure Act
• Proposed Sabal Trail Pipeline
• Hands Across the Sand” Rally
• My $0.02

Engaging In Scholarly Activities: Conferences & Publication, Emily Faulconer, Amy Riordan

Publications

Scholarly activities have key characteristics.

• Intellectually rigorous
• Expands disciplinary knowledge or creative expression
• Documented
• Validated by the relevant community of professionals