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Gamma-Rays From The Quasar Pks 1441+25: Story Of An Escape, P. T. Reynolds, Et Al

Physical Sciences Publications

Outbursts from gamma-ray quasars provide insights on the relativistic jets of active galactic nuclei and constraints on the diffuse radiation fields that fill the universe. The detection of significant emission above 100 GeV from a distant quasar would show that some of the radiated gamma-rays escape pair-production interactions with low-energy photons, be it the extragalactic background light (EBL), or the radiation near the supermassive black hole lying at the jet's base. VERITAS detected gamma-ray emission up to ~200 GeV from PKS 1441+25 (z = 0.939) during 2015 April, a period of high activity across all wavelengths. This observation of …

Variations Of Statistics For Random Waves Propagating Over A Bar, Yu-Xiang Ma, Xiao-Zhou Ma, Guo-Hai Dong

Journal of Marine Science and Technology–Taiwan

A series of physical experiments were conducted on the variations of statistics (skewness, kurtosis, groupiness) in random waves propagating over a submerged symmetrical bar. Random waves were generated using JONSWAP spectra while varying initial spectral width, wave height and peak frequency. It was found that the initial spectral width has a negligible effect on the variations of these statistical parameters. An abrupt change in wave groupiness is caused by wave breaking. Variations in the skewness and kurtosis mainly depend on the local water depth and wave height and period. Furthermore, the relationship between the skewness and kurtosis in the shoaling …

Comparison Between Consistent Coupled-Mode System And Eigenfunction Matching Method For Solving Water Wave Scattering, Chia-Cheng Tsai, Wan-Rong Chou

Journal of Marine Science and Technology–Taiwan

Both the consistent coupled-mode system (CCMS) and the eigenfunction matching method (EMM) are well-known models for simulating the propagation of small-amplitude water waves over variable bathymetry. In this study, a thorough comparison is performed through numerical experiments. For the CCMS, a bottom-sloping mode is coupled in the mildslope equation with evanescent modes, then the CCMS are discretized by the finite-element method with high-order shape functions. For the EMM, the bottom profile is approximated in terms of successive flat shelves separated by abrupt steps, and then eigensolutions on the shelves are matched by the conservation of mass and momentum. To perform …

Statistical Analysis On The Long-Term Observations Of Typhoon Waves In The Taiwan Sea, Dong-Jiing Doong, Cheng-Han Tsai, Ying-Chih Chen, Jen-Ping Peng, Ching-Jer Huang

Journal of Marine Science and Technology–Taiwan

Seventeen data buoys were deployed in the Taiwan Sea since 1997. These buoys have made measurement for more than 100 typhoons. The purpose of this paper is to study the statistical characteristics of the observed typhoon waves. High resolution directional wave spectra are obtained by analyzing the buoy data. The Significant Typhoon Wave Height (SWTH) and the Duration of Large Waves (DLW) are proposed to indicate the sea severity of typhoons. The joint effect of the SWTH and the DLW is used to assess possible impact by the typhoon waves to the coast, using the damage curve calibrated from historical …

Discussions On The Occurrence Probabilities Of Observed Freak Waves, Aifeng Tao, Ji Peng, Jinhai Zheng, Yao Wang, Yuqing Wu

Journal of Marine Science and Technology–Taiwan

Field observational is the most direct and reliable research approach to investigate the freak waves, particularly for the occurrence probability. In order to present the latest research state, the results related to the observed freak waves from six sea areas are summarized and analyzed with comparisons. Three key conclusions are addressed. Firstly, both the occurrence probability and the strength of freak waves vary much for different sea areas. It is shown that there is still no answer to the big question of whether freak waves are rare events. Secondly, there is no single accepted, unified definition of freak waves. It …

The Perceived Relationship Of Leadership Behaviors To Teacher Preparedness For Implementing Connecticut’S Core Standards In Mathematics And Use Of Math Practices Aligned With Key Shifts In The Common Core, Angela Rossbach

Doctoral Dissertations

This study examines the relationship between specific leadership behaviors (i.e. the extent to which principals establish goals and expectations; plan, coordinate and evaluate teaching and the curriculum; and promote and participate in teacher learning) and teachers’ self-reported sense of preparedness and self-reported use of practices that align with the key shifts in the Common Core State Standards in Mathematics (CCSSM). Data for this quantitative study are from a teacher survey that was distributed electronically to all K-8 certified Connecticut teachers in fall, 2015.

Linear regression analysis shows significant relationships between the variables. Specifically, teachers who reported higher levels of principal …

Evaluation Of Viirs Land Surface Temperature Using Crest-Safe Air, Snow Surface, And Soil Temperature Data, Carlos L. Pérez Díaz, Tarendra Lakhankar, Peter Romanov, Reza Khanbilvardi, Yunyue Yu

Publications and Research

In this study, the Visible Infrared Imager Radiometer Suite (VIIRS) Land Surface Temperature (LST) Environmental Data Record (EDR) was evaluated against snow surface (T-skin) and near-surface air temperature (T-air) ground observations recorded at the Cooperative Remote Sensing Science and Technology Center—Snow Analysis and Field Experiment (CREST-SAFE), located in Caribou, ME, USA during the winters of 2013 and 2014. The satellite LST corroboration of snow-covered areas is imperative because high-latitude regions are often physically inaccessible and there is a need to complement the data from the existing meteorological station networks. T-skin is not a standard meteorological parameter commonly observed at synoptic …

Where Is The Warfare? The Impact Of Sola Scriptura On Science And Religion Dialogue, William James Richardson

Senior Theses

I have two aims with the publication of this thesis. The first is to contribute to the recent scholarly work that seeks to discredit the popular, yet fallacious, warfare model of science and religion. A nuanced investigation shows that the warfare evident in popular discourse cannot easily be attributed to a conflict between the essence of science and religion. Rather “science” and “religion” are interpreted as something else entirely. The New Atheists equate science with scientism, and religion is often associated with the Biblical inerrantism of many Protestant Christians. Both ideologies are grounded in an empiricist epistemological framework founded by …

Segmentation And Strain Mapping Of A Beating Heart, Kenna Middleton

McKelvey School of Engineering Graduate Student Theses & Dissertations

Conventional methods of estimating deformation optically often compare image intensities before and after deformation to help estimate the strain fields. However, these current meth ods often introduce undesirable error that propagates through the system, growing larger through each strain calculation. These errors create false, concentrated regions of strain throughout the image. Additionally, gathering and evaluating images in three- and four dimensional space creates even more difficulty for conventional methods. Here, by imple menting new techniques of gathering four-dimensional ultrasound data sets and calculating deformation fields with traditional errors reduced three-fold, four-dimensional images were evaluated to create a novel visualization tool …

Implications Of A Fully Nonlocal Implementation Of The Dispersive Optical Model, Mohammadhossein Mahzoon

Arts & Sciences Graduate Student Theses and Dissertations

A fully nonlocal treatment for the dispersive optical model (DOM) is implemented for both the real and imaginary part of the self-energy inspired by ab initio theoretical calculationsof this quantity. By means of the dispersion relation between the real and imaginary part of the optical potential a link between the energy domain of nuclearreactions and nuclear structure isestablished. The relevant scattering data for neutrons and protons on $^{40}$Ca are described with the same quality as was accomplished with previous local versions of the DOM.The solution of the Dyson equation at positive and negative energiesis generated with a complete treatment of …

Applying Bayesian Machine Learning Methods To Theoretical Surface Science, Shane Carr

McKelvey School of Engineering Graduate Student Theses & Dissertations

Machine learning is a rapidly evolving field in computer science with increasingly many applications to other domains. In this thesis, I present a Bayesian machine learning approach to solving a problem in theoretical surface science: calculating the preferred active site on a catalyst surface for a given adsorbate molecule. I formulate the problem as a low-dimensional objective function. I show how the objective function can be approximated into a certain confidence interval using just one iteration of the self-consistent field (SCF) loop in density functional theory (DFT). I then use Bayesian optimization to perform a global search for the solution. …

Optimization Of Looped Airfoil Wind Turbine (Lawt) And Looped Airfoil Hydro-Turbine (Laht) Design Parameters For Maximum Power Generation, Binhe Song

McKelvey School of Engineering Graduate Student Theses & Dissertations

This focus of this research is on the study of the aerodynamic performance of a Looped Airfoil Wind Turbine (LAWT™) using the Computational Fluid Dynamics (CFD) software. The looped airfoil wind turbine (LAWT™) is a patented new technology by EverLift Wind Technology, Inc. for generating power from wind. It takes advantage of the superior lift force of a linearly traveling wing compared to the rotating blades in conventional wind turbine configurations. Compared to horizontal and vertical axis wind turbines, the LAWT™ can be manufactured with minimal cost because it does not require complex gear systems and its blades have a …

Understanding The Nano- And Macroscale Processes Impacting Arsenic Mobilization During Managed Aquifer Recharge Using Reclaimed Wastewater, Chelsea Wren Neil

McKelvey School of Engineering Graduate Student Theses & Dissertations

Managed aquifer recharge (MAR) utilizing reclaimed wastewater is a vital means of replenishing natural freshwater supplies in order to meet growing demands. Unfortunately, this process has been found to induce unfavorable geochemical reactions which mobilize arsenic from aquifer sediments. This process is further complicated by the simultaneous formation of iron(III) (hydr)oxide secondary minerals, which can sorb aqueous arsenic. It is crucial to fully elucidate these physico-chemical processes in order to establish safe MAR operations which minimize arsenic release. Thus, the mechanisms controlling arsenic release from arsenopyrite during MAR were investigated from the nano- to macroscale.

First, nanoscale iron(III) (hydr)oxide nucleation …

Automating Intensity Modulated Radiation Therapy Treatment Planning By Using Hierarchical Optimization, Paras Babu Tiwari

McKelvey School of Engineering Graduate Student Theses & Dissertations

The intensity modulated radiation therapy (IMRT) optimizes the beam’s intensity to deliver the prescribed dose to the target while minimizing the radiation exposure to normal structures. The IMRT optimization is a complex optimization problem because of the multiple conflicting objectives in it. Due to the complexity of the optimization, the IMRT treatment planning is still a trial and error process. Hierarchical optimization was proposed to automate the treatment planning process, but its potential has not been demonstrated in a clinical setting. Moreover, hierarchical optimization is slower than the traditional optimization. The dissertation studied a sampling algorithm to reduce the hierarchical …

Clinical Application Of Electrocardiographic Imaging In Patients With Ischemic Cardiomyopathy, Early Repolarization Syndrome And Brugada Syndrome, Junjie Zhang

McKelvey School of Engineering Graduate Student Theses & Dissertations

Electrocardiographic Imaging (ECGI) is a noninvasive modality for human application in both research and clinical settings. It is an important tool for investigation of abnormal electrophysiological (EP) substrates and arrhythmias in patients. Multi-channel body surface potential recordings and the patient-specific heart-torso geometry from ECG gated computed tomography are processed by ECGI algorithms to reconstruct epicardial potentials, electrograms and patterns of activation and repolarization. ECGI is able to continuously generate high-resolution, panoramic EP maps of the entire heart on a beat-by-beat basis, which cannot be achieved with invasive catheter mapping.

ECGI was applied in ischemic cardiomyopathy patients to characterize the abnormal …

Micro-Determinants Of Income Inequality And Consumption In Rural Bangladesh, S Rahman

School of Engineering, Computing and Mathematics

The paper examines the extent to which household and regional characteristics influence income inequality and consumption/welfare based on an in-depth survey of 406 households from 21 villages in three regions of Bangladesh. Results show that the overall Gini coefficient for rural incomes is 0.43 but Gini-decomposition revealed that the contribution of mixed crop production to inequality is just 10 percent while “Green Revolution” technology contributes almost 29 percent. Land ownership, farm capital assets, modern irrigation, non-agricultural income, and household head”s education significantly increase consumption. Tenants and households with more dependents are doubly disadvantaged and consume significantly less. Regional factors also …

A ‘Fresh Eyes’ Look At Improving The Effectiveness Of Engineering Group Design Projects, A Kyte

School of Engineering, Computing and Mathematics

No abstract provided.

Quaternary Chronology And Stratigraphy Of Mickey Springs, Oregon, Leslie Allen Mowbray

Dissertations and Theses

Mickey Springs in the Alvord Desert, southeast Oregon, is analogous to other Basin and Range hydrothermal systems where the requisite conditions of heat source and permeable pathways are met through crustal thinning due to normal faulting. This study examines the morphology and lifespan of near-surface spring features through use of ground penetrating radar, thermoluminescence (TL) dating, and elevation modeling. Duration of hydrothermal activity at Mickey Springs has not previously been determined, and age determinations of sinter at the site are conflicting. The reason for and timing of this change in silica saturation in the hydrothermal fluid has not been resolved. …

The Use Of Landsat 8 For Monitoring Of Fresh And Coastal Waters, Javier A. Concha

Theses

The most interaction between humankind and water occurs in coastal and inland waters (Case 2 waters) at a scale of tens or hundred of meters, but there is not yet an ocean color product (e.g. chlorophyll-a product) at this spatial scale. Landsat 8 could potentially address the remote sensing of these kinds of waters due to its improved features. This work presents an approach to obtain the color producing agents (CPAs) chlorophyll-a, colored dissolved organic material (CDOM) and suspended material (SM) from water bodies using Landsat 8. Adequate atmospheric correction becomes an important first step to accurately retrieving water parameters …

Using Guided Math And Flipped Learning In A Fifth Grade Fractions Unit, Kristin Leigh Moore

School of Education and Leadership Student Capstone Theses and Dissertations

The research question addressed in this project was: How can I design a math curriculum that will increase fifth grade students’ understanding of fraction concepts? The author began her research by investigating the struggles elementary students face when learning fraction concepts, which led to a study of four instructional strategies: ability grouping, differentiation, flipped learning, and guided math. The author considered the work of Boaler, Sammons, Tomlinson, Tucker, and Vann to inform her research. After careful reflection on the benefits and limitations of each strategy, the author chose to create a hybrid unit utilizing both guided math and flipped learning. …

Increasing Number Sense At The Preschool Level, Sarah Marie Koenig

School of Education and Leadership Student Capstone Theses and Dissertations

This capstone addresses the question, “What strategies can be used to increase number sense at the preschool level?”. Current research states that preschoolers need opportunities to learn about numbers and math concepts through a balance of natural play and exploration, intentional teaching, and structured learning activities embedded in their daily routines. Through the process of curriculum design using McTighe and Wiggins’ Understanding By Design framework, the author created a learning plan that includes lessons, resources, and parent/child activities using a variety of instructional strategies to teach number sense at the preschool level. The learning plan includes a sequence of activities …

Elementary School Teacher Inspiration In Lifelong Musicianship, Austin John Wellman

School of Education and Leadership Student Capstone Theses and Dissertations

This study gathers the stories of musician teachers, asking how teacher avocations in music might impact the students in the classroom. This work begins by telling the music and teaching story of the author. Topics related to music are explored in the literature review, including music as an avocation, educational research surrounding music, and finally music as a possible sense of community. Six teachers are observed and interviewed, three of whom are music teachers, and all of whom are at minimum musicians by hobby. Three notable themes are found common to all teachers participating in the study. First, all participants …

Engineering A Healthier Watershed: Middle School Students Use Engineering Design To Lessen The Impact Of Their Campus' Impervious Surfaces On Their Local Watershed, Elizabeth Claire Gardner

Dissertations and Theses

It is important that students understand not only how their local watershed functions, but also how it is being impacted by impervious surfaces. Additionally, students need experience exploring the scientific and engineering practices that are necessary for a strong STEM background. With this knowledge students can be empowered to tackle this real and local problem using engineering design, a powerful practice gaining momentum and clarity through its prominence in the recent Framework for K-12 Science Education. Twenty classes of suburban sixth-graders participated in a new five-week Watershed Engineering Design Unit taught by their regular science teachers. Students engaged in scientific …

Isn’T Citizen Science A Hoot? A Case-Study Exploring The Effectiveness Of Citizen Science As An Instrument To Teach The Nature Of Science Through A Local Nocturnal Owl-Monitoring Project, Tess Marie Kreofsky

Dissertations and Theses

Citizen science projects present a distinctive opportunity for professional and volunteer scientists to coordinate their efforts to gather unique sets of data that can benefit the scientific and local communities. These projects are assumed to be an effective educational tool to teach nature of science (NOS) to participants (Brossard, Lewenstein, Bonney, 2005). This case study evaluates the effectiveness of participation in a citizen science project as a way to learn about NOS. Through enhancement of the Tryon Creek Owl Monitoring Project the researcher reviewed the characteristics of a citizen science project that were thought to be necessary to impact the …

Sparse Representation And Dictionary Learning For Biometrics And Object Tracking, Rahman Khorsandi

Open Access Dissertations

Biometrics attracted the attention of researchers in computer vision and machine learning for its use in many applications. We propose systems for face and ear recognition, gender classification and object tracking. First, we present a fully automated system for recognition from ear images based upon sparse representation. In sparse representation, extracted features from the training data is used to develop a dictionary. Classification is achieved by representing the extracted features of the test data as a linear combination of entries in the dictionary. In fact, there are many solutions for this problem and the goal is to find the sparsest …

A Generally Efficient Targeted Minimum Loss Based Estimator, Mark J. Van Der Laan

U.C. Berkeley Division of Biostatistics Working Paper Series

Suppose we observe n independent and identically distributed observations of a finite dimensional bounded random variable. This article is concerned with the construction of an efficient targeted minimum loss-based estimator (TMLE) of a pathwise differentiable target parameter based on a realistic statistical model.

The canonical gradient of the target parameter at a particular data distribution will depend on the data distribution through an infinite dimensional nuisance parameter which can be defined as the minimizer of the expectation of a loss function (e.g., log-likelihood loss). For many models and target parameters the nuisance parameter can be split up in two components, …

A Continuum From Clear To Cloudy Hot-Jupiter Exoplanets Without Primordial Water Depletion, David K. Sing, Jonathan J. Fortney, Nikolay Nikolov, Hannah R. Wakeford, Tiffany Kataria, Thomas M. Evans, Suzanne Aigrain, Gilda E. Ballester, Adam Burrows, Drake Deming, Jean-Michel Désert, Neale P. Gibson, Gregory W. Henry, Catherine M. Huitson, Heather A. Knutson, Alain Lecavelier Des Etangs, Frederic Pont, Adam P. Showman, Alfred Vidal-Madjar, Michael H. Williamson, Paul A. Wilson

Information Systems and Engineering Management Research Publications

Thousands of transiting exoplanets have been discovered, but spectral analysis of their atmospheres has so far been dominated by a small number of exoplanets and data spanning relatively narrow wavelength ranges (such as 1.1–1.7 micrometres). Recent studies show that some hot-Jupiter exoplanets have much weaker water absorption features in their near-infrared spectra than predicted. The low amplitude of water signatures could be explained by very low water abundances, which may be a sign that water was depleted in the protoplanetary disk at the planet’s formation location, but it is unclear whether this level of depletion can actually occur. Alternatively, these …

Faculty Senate Executive Committee Agenda, December 14, 2015, Utah State University

Faculty Senate & Faculty Senate Executive Committee

• EPC Items December 2015
• Council on Teacher Education Report
• Scholarship Advisory Board
• 405.12.1 Annual Review of Faculty (First Reading)

Board Of Directors Meeting Minutes (December 14, 2015), Dmacc

Board of Directors Meeting Minutes

This file contains the minutes from the Des Moines Area Community College Board meeting held on December 14, 2015.

Nd − Pdpa: N Dimensional Probability Density Profile Analysis, Arjang Fahim

Theses and Dissertations

Proteins are often referred as working molecule of a cell, performing many structural, functional and regulatory processes. Revealing the function of proteins still remains a challenging problem. Advancement in genomics sequence projects produces large protein sequence repository, but due to technical difficulty and cost related to structure determination, the number of identified protein structure is far behind. Novel structures identification are particularly important for a number of reasons: they generate models of similar proteins for comparison; identify evolutionary relationships; further contribute to our understanding of protein function and mechanism; and allow for the fold of other family members to be …