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 …

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 …

A Museum’S Guide To Queer Inclusivity, Ashtin O. Ashbrook

Museum Studies Theses

LGBT+ (gay, lesbian, bisexual, and transgender, also called queer) people have always existed. The history of queer people has been repressed and destroyed. As culture changes and becomes more accepting of these identities, queer people are living more openly, and history is being well recorded. Museums are institutions that are responsible for representing and perpetuating cultural views, and therefore have a responsibility to include a diverse variety of people. One strategy to normalize queerness is to integrate it into museums. This guide will explore queer inclusion, with an emphasis on transgender inclusion, in all different types of museums. The following …

Getting Lead Off The Landscape: A Theory And Data-Driven Approach To Increase Non-Lead Ammunition Use Among Hunters In The California Condor Range Of Utah (Usa), Jacob C. Richards, Jordan W. Smith

Environment and Society Faculty Publications

The leading cause of mortality in California condors (condors) is lead poisoning, which occurs when condors ingest lead-based ammunition left in carcasses. As a critically endangered species with approximately 100 individuals remaining in the American southwest, increasing the adoption of non-lead ammunition is essential to the recovery of the species. In Utah, the Division of Wildlife Resources (DWR) uses communication with hunters as the primary tool for increasing the adoption of non-lead ammunition in southwestern Utah. In this research, we use social science theory and data collected from a survey of hunters throughout the region to develop a strategic communication …

The Curious Crypto Question: Do Patents Advance Fintech Innovation? The Paradox Arising From Five Key Recent Trends, Katopis, Chris J.

Santa Clara High Technology Law Journal

The Author examines some recent trends in intellectual property (U.S. patents) in the fintech sector, summarizes this empirical data, and discusses the potential implications of these developments.

Should Personal Information And Biometric Data Be Protected Under A Comprehensive Federal Privacy Statute That Uses The California Consumer Privacy Act And The Illinois Biometric Information Privacy Act As Model Laws?, Buresh, Donald L.

Santa Clara High Technology Law Journal

The issue addressed in this paper was that only a minority of states have passed privacy and biometric privacy rights laws. The collection, storage, use, and dissemination of personal information and biometric data is becoming paramount due to the public’s ever-increasing desire for security. The purpose of this study was to understand and evaluate the privacy and property issues that states confront that are inherent within the use and results of employing personal information and biometric data to enhance corporate security in their efforts to protect individual privacy. This research addressed the following questions: (1) What are the biometric privacy …

Gvsu Undergraduate And Graduate Catalog, 2021-2022, Grand Valley State University

Course Catalogs, 1963 - Current

Grand Valley State University 2021-2022 undergraduate and graduate course catalog. Course catalogs are published annually to provide students with information and guidance for enrollment.

The Radius Of The Umbrella Cloud Helps Characterize Large Explosive Volcanic Eruptions, Robert Constantinescu, Aurelian Hopulele-Gligor, Charles Connor, Costanza Bonadonna, Laura Connor, Jan Lindsay, Sylvain Charbonnier, Alain C.M. Volentik

School of Geosciences Faculty and Staff Publications

Eruption source parameters (in particular erupted volume and column height) are used by volcanologists to inform volcanic hazard assessments and to classify explosive volcanic eruptions. Estimations of source parameters are associated with large uncertainties due to various factors, including complex tephra sedimentation patterns from gravitationally spreading umbrella clouds. We modify an advection-diffusion model to investigate this effect. Using this model, source parameters for the climactic phase of the 2450 BP eruption of Pululagua, Ecuador, are different with respect to previous estimates (erupted mass: 1.5–5 × 10¹¹ kg, umbrella cloud radius: 10–14 km, plume height: 20–30 km). We suggest large …

Magmatic Response To Subduction Initiation, Part Ii: Boninites And Related Rocks Of The Izu‐Bonin Arc From Iopd Expedition 352, John W. Shervais, Mark K. Reagan, Marguerite Godard, Julie Prytulak, Jeffrey G. Ryan

School of Geosciences Faculty and Staff Publications

International Ocean Discovery Program Expedition 352 to the Izu‐Bonin forearc cored over 800 m of basement comprising boninite and boninite‐series lavas. This is the most extensive, well‐constrained suite of boninite series lavas ever obtained from in situ oceanic crust. The boninites are characterized as high‐silica boninite (HSB), low‐silica boninite (LSB), or basaltic boninite based on their SiO₂‐MgO‐TiO₂ relations. The principal fractionation products of all three series are high‐Mg andesites (HMA). Lavas recovered >250 meters below seafloor (mbsf) erupted at a forearc spreading axis and are dominated by LSB and HMA. Lavas recovered fromoff‐axis and are dominated by …

Linking Landscape Attributes To Salmon And Decision-Making In The Southern Kenai Lowlands, Alaska, Usa, Coowe M. Walker, Dennis F. Whigham, I. Syverine Bentz, Jacob M. Argueta, Ryan S. King, Mark C. Rains, Charles A. Simenstad, Chris Guo, Steven J. Baird, Conrad J. Field

School of Geosciences Faculty and Staff Publications

While Pacific salmon are economically and culturally important worldwide, Alaska, USA is one of the few remaining places on earth where sustainable management of salmon is possible, even in the face of wide-ranging threats, including overharvesting and the impacts of climate change. A continuing challenge that we face is to understand the ecological processes that result in sustainable salmon populations and report that science to stakeholders in a way that promotes decision-making to avoid the destruction of salmon populations that has occurred in most areas of the lower 48 states. To address this challenge, our studies in the southern Kenai …

Ethical Product Havens In The Global Diamond Trade: Using The Wayback Machine To Evaluate Ethical Market Outcomes, Trina Hamilton, Seth Cavello

School of Geosciences Faculty and Staff Publications

Who benefits from ethical product markets? While most ethical products (e.g. fair trade and eco-certified products) are intended to benefit marginalized communities and vulnerable ecosystems, the reality is that the geographic preferences exhibited by so-called ethical markets may, in fact, reinforce global inequities rather than remedy them. It can be difficult to evaluate the outcomes of ethical product markets, however, because we are often limited to data from a small number of industries with widely used standards and certifications. This research pilots a new methodology, using an online archive—the Wayback Machine, to evaluate shifts in countries' ethical market share, focusing …

Impulsive Volcanic Plumes Generate Volcanic Lightning And Vent Discharges: A Statistical Analysis Of Sakurajima Volcano In 2015, Cassandra M. Smith, Damien Gaudin, Alexa R. Van Eaton, Sonja A. Behnke, Steven Reader, Ronald J. Thomas, Harald Edens, Stephen R. Mcnutt, Corrado Cimarelli

School of Geosciences Faculty and Staff Publications

The origin of electrical activity accompanying volcanic ash plumes is an area of heightened interest in volcanology. However, it is unclear how intense an eruption needs to be to produce lightning flashes as opposed to “vent discharges,” which represent the smallest scale of electrical activity. This study targets 97 carefully monitored plumesJapan, from June 1 to 7, 2015. We use multiparametric measurements from sensors including a nine-station lightning mapping array and an infrared camera to characterize plume ascent. Findings demonstrate that the impulsive, high velocity plumes (>55 m/s) were most likely to create vent discharges, whereas lightning flashes occurred …

Molybdenum Isotopes Unmask Slab Dehydration And Melting Beneath The Mariana Arc, Hong-Yan Li, Rui-Peng Zhao, Jie Li, Yoshihiko Tamura, Christopher Spencer, Robert J. Stern, Jeffrey G. Ryan, Yi-Gang Xu

School of Geosciences Faculty and Staff Publications

How serpentinites in the forearc mantle and subducted lithosphere become involved in enriching the subarc mantle source of arc magmas is controversial. Here we report molybdenum isotopes for primitive submarine lavas and serpentinites from active volcanoes and serpentinite mud volcanoes in the Mariana arc. These data, in combination with radiogenic isotopes and elemental ratios, allow development of a model whereby shallow, partially serpentinized and subducted forearc mantle transfers fluid and melt from the subducted slab into the subarc mantle. These entrained forearc mantle fragments are further metasomatized by slab fluids/melts derived from the dehydration of serpentinites in the subducted lithospheric …

Large-Volume And Shallow Magma Intrusions In The Blackfoot Reservoir Volcanic Field (Idaho, Usa), M. S. Hastings, C. B. Connor, P. Wetmore, R. Malservisi, L. J. Connor, M. Rodgers, P. C. Femina

School of Geosciences Faculty and Staff Publications

he Blackfoot Reservoir volcanic field (BRVF), Idaho, USA, is a bimodal volcanic field that has hosted silicic eruptions during at least two episodes, as recently as 58 ka. Using newly collected ground and boat-based gravity data, two large negative anomalies (-16 mGal) are modeled as shallow (< 1  km) intrusions beneath a NE-trending alignment of BRVF rhyolite domes and tuff rings. Given the trade-off between density contrast and model volume, best-fit gravity inversion models yield a total intrusion volume of 50-120 km³; a density contrast of -400 kg m^-3 results in two intrusions, each ~9 km x 4.5 km and about 0.5 km thick, with cumulative volume of 100 km³. A network of 340°-360° trending faults lies directly above and on the margins of the mapped gravity anomalies. Most of …

Comparing Mitochondrial Gene Sequences Of Aedes Aegypti In East Africa To The Global Anthropophilic Strain, Brian Bwanya Edward

All Master’s Theses

Advances in genotyping methods have shed more light into mosquito genetics and improved our understanding of vector-borne disease transmission cycles. Outside of Africa, Aedes aegypti, the main vector of arboviruses such as dengue, chikungunya, yellow fever, and Zika viruses, prefers humans for a blood meal, resting and breeding in close association with human settlements. However, in its native African ecology, both domestic (Aedes aegypti aegypti) and sylvatic (forest) (Aedes aegypti formosus) lineages occur. Further, the African Ae. aegypti populations have been found to exhibit divergence in typically conserved mitochondrial cytochrome c oxidase subunit I (COI) genes and traits of epidemiological …

Cybersecurity Leaders: Knowledge Driving Human Capital Development, Sharon L. Burton

Publications

Cybersecurity leaders must be able to use critical reading and thinking skills, exercise judgment when policies are not distinct and precise, and have the knowledge, skills, and abilities to tailor technical and planning data to diverse customers’ levels of understanding. Ninety-three percent of cybersecurity leaders do not report directly to the chief operating officer. While status differences influence interactions amid groups, attackers are smarter. With the aim of protecting organizations and reducing risk, knowledge about security must increase. Understanding voids are costly and increased breach chances are imminent. Burning questions exist. What are needed technological learnings for cybersecurity leaders to …

Sense Of Belonging Increases Performance Expectations Among Women In Stem Fields, Anne Brown, Ariana Gaydon

Undergraduate Research Symposium

This research examines threatening educational environments for women STEM (Science, Technology, Engineering, and Math) majors. Previous research found that underrepresented groups receive subtle and overt messages that they do not belong in science and academia which leads to lower science identity, lower grades, and switching to a non-STEM major (Ong et al. 2011; Robnett 2016; Rainey et al., 2018). This study used survey data from students (N = 213) from a western university. The results indicate a 2-way interaction between sense of belonging (or the acceptance an individual feels regarding a specific group or environment) and science identity (how …

The Student Experience Of Psychoeducational Assessment: A Phenomenological Study, Teresa Hoffman

Antioch University Dissertations & Theses

Emerging adults with specific learning disabilities (SLD) are interviewed to understand the student experience of the psychoeducational assessment process that is codified by the Individuals with Disabilities Education Act of 2004 (IDEA). The assessment practice is well established to qualify students for special education and related services (SERS) to ensure every child in the United States has the opportunity for free and appropriate education. An overview of the general psychoeducational assessment practice and specific assessment for SLD is supplemented by the literature regarding best-practices for psychological assessment with children/adolescents to set the context for a process that is encountered triennially …

Sickle Cell In A Poor Community In Haiti: Attention, Emotion, And Sleep, Sarajane Rodgers

Antioch University Dissertations & Theses

Hemoglobin disorders or inherited blood diseases affect about 5% of the world population. One main category of these disorders is sickle-cell disease (SCD). SCD can cause many physical complications, such as kidney problems, leg ulcers, and chronic pain. Less frequently discussed symptoms include complications like attention problems and emotion regulation. The study looked at a small sample of pediatric and adult patients (N=22) with SCD at a primary care clinic in a very poor community in Haiti, researching sleep and emotion regulation, given their shared neurobiological systems. As these symptoms can influence attention, the relationships among attention, emotion, and sleep …

Zn Orbifolds Of Vertex Operator Algebras, Daniel Graybill

Electronic Theses and Dissertations

Given a vertex algebra V and a group of automorphisms of V, the invariant subalgebra V^G is called an orbifold of V. This construction appeared first in physics and was also fundamental to the construction of the Moonshine module in the work of Borcherds. It is expected that nice properties of V such as C2-cofiniteness and rationality will be inherited by V^G if G is a finite group. It is also expected that under reasonable hypotheses, if V is strongly finitely generated and G is reductive, V^G will also be strongly finitely generated. This is an analogue …

Independent, Semi-Automated Classification Of Petrographic Features In Volcanic Rocks Using Fiji And Weka, Holly Danielle Pettus

Graduate Theses, Dissertations, and Problem Reports (ETD)

Traditional methods of collecting quantitative petrographic data from thin sections (modal mineralogy, size distribution, shapes, etc.) are time- and labor-intensive, and rarely have sample sizes adequate to statistically describe complex rocks (i.e. volcanic rocks). Although manual counting and measurements are now routinely supplemented by digital image analysis, the majority of quantitative petrographic studies still go through a manual digitization stage where object classes are traced before further analyses. This is a major rate-limiting step that reproduces the same problems of small n-values resulting from significant effort. We have valuated the potential and limitations of using the Trainable Weka Segmentation (TWS) …

Taxing Buybacks, Daniel J. Hemel, Gregg D. Polsky

Coase-Sandor Institute for Law & Economics Research Paper Series

A recent rise in the volume of corporate share repurchases has prompted calls for changes to the rules governing stock buybacks. These calls for reform are animated by concerns that buybacks enrich corporate executives at the expense of productive investment. This emerging antibuyback movement includes prominent politicians as well as academics and Republicans as well as Democrats. The primary focus of buyback critics has been on securities-law changes to deter repurchases, with only passing mention of potential tax-law solutions.

This Article critically examines the policy arguments against buybacks and arrives at a mixed verdict. On the one hand, claims that …

The Law Of Restitution For Mistaken Payments: An Economic Analysis, Dhammika Dharmapala, Nuno Garoupa

Coase-Sandor Institute for Law & Economics Research Paper Series

The law of restitution and unjust enrichment has emerged as an important and independent branch of private law globally, but has attracted relatively little economic analysis. The aim of this paper is to develop a general conceptual framework for the economic analysis of the core example of restitution - mistaken payments. We develop a formal model in a parsimonious setting with two buyer-seller pairs, with low (high) transaction costs within (across) pairs. This model generates several novel insights, based on the idea that mistaken payments to strangers impose a “transaction tax” on contracting parties. It sheds new light on distortions …

Literacy Development Practices For English Learners With Interrupted Formal Education, Javier Francisco Oaxaca

Theses and Dissertations

English language learners (ELLs) are a diverse student group that continues to grow within schools all throughout the United States and those students with limited or interrupted formal education (SLIFE) continue to lag behind their peers in academic achievement, particularly in literacy. Although there have been several studies to explore this complex phenomenon, a gap in the research continues to exist on specific conditions needed for academic success for SLIFE such as beginning/basic literacy instruction in secondary educational contexts. The purpose of this research study was to determine the extent to which teachers’ perception and knowledge of basic literacy skills …