Digital Commons Network^™

How Hilbert’S Attempt To Unify Gravitation And Electromagnetism Failed Completely, And A Plausible Resolution, Victor Christianto, Florentin Smarandache, Robert N. Boyd

Branch Mathematics and Statistics Faculty and Staff Publications

In the present paper, these authors argue on actual reasons why Hilbert’s axiomatic program to unify gravitation theory and electromagnetism failed completely. An outline of plausible resolution of this problem is given here, based on: a) Gödel’s incompleteness theorem, b) Newton’s aether stream model. And in another paper we will present our calculation of receding Moon from Earth based on such a matter creation hypothesis. More experiments and observations are called to verify this new hypothesis, albeit it is inspired from Newton’s theory himself.

Carrier Dynamics In High-Speed Iii-Nitride Light-Emitting Diodes For Visible-Light Communication, Arman Rashidi

Optical Science and Engineering ETDs

III-nitride light-emitting diodes (LEDs) are now ubiquitous in solid-state lighting (SSL) systems. Despite the significant advancement of III-nitride LEDs, the origins of fundamental challenges such as efficiency droop, thermal droop, and green gap are not completely understood. In addition, emerging applications such as micro-pixel LED displays and visible-light communication (VLC) require efficient LEDs capable of high-speed modulation. Studies of carrier dynamics are essential to better understand the fundamental efficiency challenges and enable the design of high-efficiency, high-speed LEDs. Among approaches to characterize the carrier dynamics in LEDs, electrically injected methods are preferred over optically pumped methods to capture the carrier …

Teaching Evidence-Based Practices To Teachers, Jennifer M. Pena

Special Education ETDs

A convenience sample of 32 teachers (general and special education) and instructional coaches participated in professional development (PD) focused on finding, researching, and implementing evidence-based practices (EBPs) in a charter elementary/middle/high school that uses an inclusive model of special education services. Research questions addressed participants’ understandings and implementation of EBPs prior to and following the PD, as well as their reports about the PD model itself. Results indicated teachers had limited understanding of EBPs and knowledge of resources (i.e., where to find EBPs), and mixed reports of implementation prior to the PD. Throughout the study, participants reported a desire to …

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School of Art, Design and Architecture

No abstract provided.

Two P-Mode-Dominated Subdwarf B Pulsators In Binaries With F-Star Companions Observed With K2, Michael D. Reed, J. H. Telting, L. Ketzer, J. A. Crooke, A. S. Baran, J. Vos, P. Nemeth, R. H. Ostensen, C. S. Jeffery

College of Natural and Applied Sciences

This paper presents spectroscopic and seismic analyses of two rare hybrid pulsating subdwarf B (sdB) stars, PG 0048+091 and PG 1315−123, which are dominated by pressure (p)-mode pulsations. These are only the second and third sdB pulsators with detected frequency multiplets in both the p- and g (gravity)-mode regions. This allows an examination of the radial rotation profiles and p- and g-mode overtone spacings. Frequency multiplets indicate that PG 1315−123 rotates uniformly, as a solid body, while PG 0048+091 is rotating faster in the outer envelope. g- and p-mode overtone spacings for PG 1315−123 agree with previous findings and model …

Patient Perceptions Of Their Own Data In Mhealth Technology–Enabled N-Of-1 Trials For Chronic Pain: Qualitative Study, Robin Whitney, Deborah Ward, Maria Marois, Christopher Schmid, Ida Sim, Richard Kravitz

Faculty Publications

Background: N-of-1 (individual comparison) trials are a promising approach for comparing the effectiveness of 2 or more treatments for individual patients; yet, few studies have qualitatively examined how patients use and make sense of their own patient-generated health data (PGHD) in the context of N-of-1 trials. Objective: The objective of our study was to explore chronic pain patients’ perceptions about the PGHD they compiled while comparing 2 chronic pain treatments and tracking their symptoms using a smartphone N-of-1 app in collaboration with their clinicians. Methods: Semistructured interviews were recorded with 33 patients, a consecutive subset of the intervention group in …

J/Ψ Production Cross Section And Its Dependence On Charged-Particle Multiplicity In P + P Collisions At √S=200 Gev, J. Adam, L. Adamczyk, J. R. Adams, James K. Adkins, G. Agakishiev, M. M. Aggarwal, Z. Ahammed, N. N. Ajitanand, I. Alekseev, D. M. Anderson, R. Aoyama, A. Aparin, D. Arkhipkin, E. C. Aschenauer, M. U. Ashraf, F. Atetalla, A. Attri, G. S. Averichev, X. Bai, V. Bairathi, K. Barish, A. J. Bassill, A. Behera, R. Bellwied, A. Bhasin, A. K. Bhati, J. Bielcik, J. Bielcikova, L. C. Bland, I. G. Bordyuzhin, Renee H. Fatemi, Suvarna Ramachandran

Physics and Astronomy Faculty Publications

We present a measurement of inclusive J/ψ production at mid-rapidity (|y| < 1) in p+p collisions at a center-of-mass energy of √s=200 GeV with the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The differential production cross section for J/ψ as a function of transverse momentum (p_T) for 0 < p_T < 14 GeV/c and the total cross section are reported and compared to calculations from the color evaporation model and the non-relativistic Quantum Chromodynamics model. The dependence of J/ψ relative yields in three p_T intervals on charged-particle multiplicity at mid-rapidity is measured for …

Toward Building Resilient, Sustainable, And Smart Infrastructure In The 21st Century, Aly Mousaad Aly

Faculty Publications

In recent years, as a result of significant climate change, stringent windstorms are becoming more frequent than before. Given the threat that windstorms bring to people and property, wind/structural engineering research is imperative to improve the resilience of existing and new infrastructure, for community safety and assets protection. The Windstorm Impact, Science and Engineering (WISE) research program at Louisiana State University (LSU) focuses on creating new knowledge applicable to the mitigation of existing and new infrastructure, to survive and perform optimally under natural hazards. To achieve our research goals, we address two imperious challenges: (i) characterization of realistic wind forces …

Finite Time Estimation Through A Continuous-Discrete Observer, Frédéric Mazenc, Saeed Ahmed, Michael Malisoff

Faculty Publications

We study two broad classes of nonlinear time-varying continuous-time systems with outputs. For the first class, we build an observer in the case where a state dependent disturbance affects the linear approximation. When the disturbances are the zero functions, our observer provides exact values of the state at all times larger than a suitable finite time, and it provides an approximate estimate when there are nonzero disturbances, so our observers are called finite time observers. We use this construction, which is of interest for its own sake, to design a globally exponentially stabilizing dynamic output feedback for a family of …

Assessment For Project-Based Courses, James R. Fugate

Articles

A project-based course is where students engage in a series of projects, which help lead students to a defined level of skill as specified in the course goals. Unlike a traditional lecture course where students are given examinations to assess the level of student knowledge and understanding, a project-based course may not include any formal examination. The assessment of student progress is often based on the quality of course projects. For this research, students in project-based courses were given a formal exam at the end of the course. The objective of the exam was to determine if there was a …

Exchanging Personal Health Data With Electronic Health Records: A Standardized Information Model For Patient Generated Health Data And Observations Of Daily Living, Panagiotis Plastiras, Dympna O'Sullivan

Articles

Objective: The development of a middleware information model to facilitate better interoperability between Personal and Electronic Health Record systems in order to allow exchange of Patient Generated Health Data and Observations of Daily Leaving between patients and providers in order to encourage patient self-management.

Materials and methods: An information model based on HL7 standards for interoperability has been extended to support PGHD and ODL data types. The new information models uses HL7 CDA to represent data, is instantiated as a Protégé ontology and uses a set of mapping rules to transfer data between Personal and Electronic Health Record …

The Effects Of Pressure And Magnetic Field On Phase Transitions And Related Physical Properties In Solid State Caloric Materials, Ahmad Ikhwan Us Saleheen

LSU Doctoral Dissertations

Solid-state caloric effects, such as the magnetocaloric (MCE) and barocaloric (BCE) effects, may be utilized in future cooling technologies that are more efficient and environment-friendly. Large caloric effects often occur near phase transitions, especially near coupled first-order magnetostructural transitions (MST), and are initiated by external parameters, such as magnetic field or hydrostatic pressure. In this dissertation, the effects of pressure, temperature, and magnetic field on the phase transitions in three material systems are studied in order to elucidate how the respective caloric effects are affected.

In the first study, the realization of a coupled MST in a MnNiSi-based system through …

The Bright-End Galaxy Candidates At Z ∼ 9 From 79 Independent Hst Fields, T. Morishita, M. Trenti, M. Stiavelli, L. D. Bradley, D. Coe, P. A. Oesch, C. A. Mason, J. S. Bridge, Benne W. Holwerda, R. C. Livermore, B. Salmon, K. B. Schmidt, J. M. Shull, T. Treu

Faculty and Staff Scholarship

We present a full data analysis of the pure-parallel Hubble Space Telescope (HST) imaging observations in the Brightest of Reionizing Galaxies Survey (BoRG[z9]) in Cycle 22. The medium-deep exposures with five HST/WFC3IR+UVIS filter bands from 79 independent sightlines (∼370 arcmin2) provide the least biased determination of number density for z 9 bright galaxies against cosmic variance. After a strict two-step selection for candidate galaxies, including dropout color and photometric redshift analyses, and revision of previous BoRG candidates, we identify one source at z ∼ 10 and two sources at z ∼ 9. The z ∼ 10 candidate shows evidence of …

Phase I Of The Surveillance For Enteric Fever In Asia Project (Seap): An Overview And Lessons Learned, Caitlin Barkume, Kashmira Date, Samir K. Saha, Farah Qamar, Dipika Sur, Jason R. Andrews, Stephen P. Luby, M Imran Khan, Alex Freeman, Mohammad Tahir Yousafzai, Denise Garret

Department of Paediatrics and Child Health

Objective: The objective of Phase I of the Surveillance for Enteric Fever in Asia Project (SEAP), a multiphase surveillance study characterizing the burden of disease in South Asia, was to inform data collection for prospective surveillance and to capture clinical aspects of disease.
Methods: Through a retrospective record review conducted at hospitals in Bangladesh, India, Nepal, and Pakistan, we examined laboratory and clinical records to assess the culture positivity rate for Salmonella Typhi and Salmonella Paratyphi, age and sex distribution, and antimicrobial susceptability in each country.
Results: Of all blood cultures performed in Bangladesh, India, Nepal, and Pakistan, 1.5%, 0.43%, …

Modeling Surface Tension Of A Two-Dimensional Droplet Using Smoothed Particle Hydrodynamics, Nowoghomwenma Noel Ehigiamusoe, Samat Maxutov, Yeaw Chu Lee

School of Engineering, Computing and Mathematics

Surface tension plays a significant role at the dynamic interface of free-surface flows especially at the microscale in capillary-dominated flows. A model for accurately predicting the formation of two-dimensional viscous droplets in vacuum or gas of negligible density and viscosity resulting from axisymmetric oscillation due to surface tension is solved using smoothed particle hydrodynamics composed of the Navier-Stokes system and appropriate interfacial conditions for the free-surface boundaries. The evolution of the droplet and its free-surface interface is tracked over time to investigate the effects of surface tension forces implemented using a modified continuous surface force method and is compared with …

Surviving Domestic Violence In An Indian-Australian Household: An Autoethnography Of Resilience, Amar Freya

The Qualitative Report

This study explores how my personal experiences with domestic violence in my family have shaped my identity and my current self as an Indian-Australian woman, teacher, and researcher. Domestic violence touches many children and their families and affects their sense of identity and belonging as individuals and in their social spaces. An autoethnographical method is used to investigate my experiences within a domestically violent family and how it has shaped my identity as an Indian-Australian woman. The study reveals various themes including three themes that were noted to be the most significant: patriarchy in Indian culture, resilience, identity and belonging. …

Search And Review Of The Literature On Engineering Design Challenges In Secondary School Settings, Matthew Lammi, Cameron Denson, Paul Asunda

Journal of Pre-College Engineering Education Research (J-PEER)

Engineering design activities offer the promise of enhanced learning and teaching in pre-college science, technology, engineering, and mathematics (STEM) settings. The wide variation and lack of coherence in research and practice concerning pre-college engineering design challenges necessitates an investigation of the literature. The overarching research question guiding this search and review of literature was, ‘‘How are engineering design challenges conceptualized in pre-college environments?’’ A search and review coupled with iterative thematic analysis was employed to understand and conceptualize the current body of literature on pre-college engineering design challenges. It is anticipated that this review will provide a general picture of …

A Review Of Fractals In Karst, Eulogio Pardo-Igúzquiza, Peter A. Dowd, Juan J. Durán, Pedro Robledo-Ardila

International Journal of Speleology

Many features of a karst massif can either be modelled using fractal geometry or have a fractal distribution. For the exokarst, typical examples include the geometry of the landscape and the spatial location and size-distribution of karst depressions. Typical examples for the endokarst are the geometry of the three-dimensional network of karst conduits and the length-distribution of caves. In addition, the hydrogeological parameters of the karst massif, such as hydraulic conductivity, and karst spring hydrographs may also exhibit fractal behaviour. In this work we review the karst features that exhibit fractal behaviour, we review the literature in which they are …

Full Issue (Fall 2018)

Intersections: Critical Issues in Education

No abstract provided.

Critical Race Spatial Analysis: Mapping To Understand And Address Educational Inequity (Book Review), Neritza Díaz-Cruz

Intersections: Critical Issues in Education

No abstract provided.

Settler Colonial Legacies: Indigenous Student Reflections On K-12 Social Studies Curriculum, Stephanie Masta

Intersections: Critical Issues in Education

This article explores how Indigenous students make meaning of the dominant structure of settler colonialism within their K-12 academic experiences. I build on previous work done on settler colonial ideology by linking structural forms of settler colonial power to the lived experiences of Indigenous students, and using their voices to describe how pervasive settler colonial ideology is in practice. Through their descriptions of the curriculum narratives in K-12, the participants create a compelling image of the influence of settler colonialism in their educational experiences. Confronting settler colonial ideology is not just about providing a more accurate historical record of what …

Examining Intersectionalities Among Male Faculty Of Color On The Tenure-Track, Melissa A. Martinez, Juan M. Nino, Isaac Torres

Intersections: Critical Issues in Education

This qualitative phenomenological study examined the lived experiences of 22 male assistant professors of color as they navigated the tenure-track while working in various disciplines at four-year institutions nationwide. The notion of intersectionality provided a theoretical framework to unearth how participants’ experiences were shaped. The guiding questions for the study included: 1) How do male tenure-track assistant professors of color describe their experiences in navigating academia? (2) How does intersectionality theory assist with better understanding their experiences? Findings revealed overarching themes related to how they negotiated and struggled with their various work and personal roles and responsibilities, understandings of their …

"Some Ovid Of The Films": W. B. Yeats, Mass Media, And The Future Of Poetry In The 1930s, Charles I. Armstrong

International Yeats Studies

This essay addresses Yeats’s negotiation of poetry’s relationship, during the 1930s, with the emerging mass culture. Rather than contextualizing Yeats’s view on the future with a traditional critical framework such as Romantic apocalyptical discourse, a closeness to Aldous Huxley’s Brave New World and dystopian novels is explored. The main focus is on an unfinished draft for A Vision, “Michael Robartes Foretells,” and the way it envisages the changing situation for literature at the end of an epoch. Yeats’s use of classical parallels and linking of poetry and cinema are given special attention. His suggestion that the poetry of the …

Full Issue Summer 2018 Volume 13, Issue 2

School Leadership Review

No abstract provided.

The Firece Green Fire: Vol. 9 Issue 10, Wofford College Environmental Studies Program

The Fierce Green Fire

No abstract provided.

Evaluation Of The Weak Constraint Data Assimilation Approach For Estimating Turbulent Heat Fluxes At Six Sites, Xinlei He, Tongren Xu, Sayed M. Bateni, C.M.U. Neale, Thomas Auligne, Shaomin Liu, Kaicun Wang, Kebiao Mao, Yunjun Yao

Daugherty Water for Food Global Institute: Faculty Publications

A number of studies have estimated turbulent heat fluxes by assimilating sequences of land surface temperature (LST) observations into the strong constraint-variational data assimilation (SC-VDA) approaches. The SC-VDA approaches do not account for the structural model errors and uncertainties in the micrometeorological variables. In contrast to the SC-VDA approaches, the WC-VDA approach (the so-called weak constraint-VDA) accounts for the effects of structural and model errors by adding a model error term. In this study, the WC-VDA approach is tested at six study sites with different climatic and vegetative conditions. Its performance is also compared with that of SC-VDA at the …

Environmental Impact- Using Digital Media To Focus Student Learning, Crystal Randall, Sowmya Anjur, Donald Dosch

Faculty Publications & Research

Environmental issues are global challenges that our students will have to address in their future. Addressing these issues through curriculum helps bring purpose to students’ learning. We have developed a capstone project in our introductory biology class that allows students to engage in these issues in a creative and personalized manner, and which asks students to not only address the biology at the core of these issues but also suggest possible solutions to the problem. In this session, we will share how we scaffold our curriculum to prepare students for this experience, as well as show examples of student work.

Diversity And Inclusion In The Science Classroom, Sowmya Anjur

Faculty Publications & Research

A Diversity, Epidemiology and social justice unit was incorporated into the Physiology and Disease curriculum in Fall 2016. Students discussed topics such as social and cultural influences on diversity thinking, and selective treatment in hospitals based on race. It was very noteworthy that students were united in their thinking regarding diversity and inclusion, despite the fact that they were from different backgrounds and diverse cultures. In 2017, additional discussions were held on equity in education. Students who were otherwise reserved were encouraged enough to express their views, and everyone appreciated the fact that they had been included.

Climate Futures 1| Climate Futures, Design And The Just Transition, Schedule, Liberal Arts Division, Ncss Graduate Program

Climate Futures Symposia

Schedule of events distributed at the Symposium.

Reinforcement Learning-Based Multi-Auv Adaptive Trajectory Planning For Under-Ice Field Estimation, Chaofeng Wang, Li Wei, Zhaohui Wang, Min Song, Nina Mahmoudian

Michigan Tech Publications, Part 1

This work studies online learning-based trajectory planning for multiple autonomous underwater vehicles (AUVs) to estimate a water parameter field of interest in the under-ice environment. A centralized system is considered, where several fixed access points on the ice layer are introduced as gateways for communications between the AUVs and a remote data fusion center. We model the water parameter field of interest as a Gaussian process with unknown hyper-parameters. The AUV trajectories for sampling are determined on an epoch-by-epoch basis. At the end of each epoch, the access points relay the observed field samples from all the AUVs to the …