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Professional Development Impact On Quality Interactions In Home-Based Early Childhood Settings, Theresa Peplinski Dec 2022

Professional Development Impact On Quality Interactions In Home-Based Early Childhood Settings, Theresa Peplinski

Graduate Teacher Education

Recent literature was examined to explore the relationship between professional development and quality interactions in home-based early childhood settings. Home-based child care was identified as a setting preferred by parents (Melvin et al., 2022). However, the educators in these settings often worked alone, worked long hours, and were less likely to have a degree than educators in other early childhood settings (Durden et al., 2016). The understanding of what constituted quality in these under-recognized settings was more challenging to quantify and less studied than quality in other early education settings (Han et al., 2021). A thorough literature review was conducted, …

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A Hybrid Artificial Intelligence Model For Detecting Keratoconus, Zaid Abdi Alkareem Alyasseri, Ali H. Al-Timemy, Ammar Kamal Abasi, Alexandru Lavric, Husam Jasim Mohammed, Hidenori Takahashi, Jose Arthur Milhomens Filho, Mauro Campos, Rossen M. Hazarbassanov, Siamak Yousefi Dec 2022

A Hybrid Artificial Intelligence Model For Detecting Keratoconus, Zaid Abdi Alkareem Alyasseri, Ali H. Al-Timemy, Ammar Kamal Abasi, Alexandru Lavric, Husam Jasim Mohammed, Hidenori Takahashi, Jose Arthur Milhomens Filho, Mauro Campos, Rossen M. Hazarbassanov, Siamak Yousefi

Machine Learning Faculty Publications

Machine learning models have recently provided great promise in diagnosis of several ophthalmic disorders, including keratoconus (KCN). Keratoconus, a noninflammatory ectatic corneal disorder characterized by progressive cornea thinning, is challenging to detect as signs may be subtle. Several machine learning models have been proposed to detect KCN, however most of the models are supervised and thus require large well-annotated data. This paper proposes a new unsupervised model to detect KCN, based on adapted flower pollination algorithm (FPA) and the k-means algorithm. We will evaluate the proposed models using corneal data collected from 5430 eyes at different stages of KCN severity …

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Commencement [Program], December 17, 2022, University Of Northern Iowa Dec 2022

Commencement [Program], December 17, 2022, University Of Northern Iowa

UNI Commencement Programs

The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates. This commencement program is not an official graduate list.

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Do Emotional Support Animals Actually Help?, Harold Herzog Dec 2022

Do Emotional Support Animals Actually Help?, Harold Herzog

Herzog - Companion Animal Issues

U.S. federal law allows people with mental-health disorders to have emotional support animals in college dorms and no-pet apartments. This legislation assumes there are proven benefits of of living with emotional support animals. There is no substantial research that supports the use of emotional support animals in public housing or for air travel.

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Amaryllis & Belladonna, Office Of Arts + Cultural Programming, Peak Performances At Montclair State University Dec 2022

Amaryllis & Belladonna, Office Of Arts + Cultural Programming, Peak Performances At Montclair State University

2022-2023 Artists Invoke the Powers of Community as They Bring Audiences Into Fiery, Mysterious, Illuminating Visions of Our World

Amaryllis & Belladonna are two new, modular, and interlocking projects by Brooklyn-based guitarist, composer, and MacArthur fellow Mary Halvorson. Amaryllis is a sextet that filters Halvorson’s compositional explorations of melody, harmony, and counterpoint through the lens of six master improvisers, arranged in a way that allows the music to unfold differently every time. Belladonna is a set of compositions written specifically for Halvorson on guitar plus The Mivos Quartet. Highlighting Halvorson’s compositional voice in a fresh context, the music is augmented by Halvorson’s guitar throughout, adding elements of chance and improvisation. Halvorson says, “Amaryllis features some of my favorite musicians …

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Who's Publishing What: The Sweet Spot, Erma Bombeck Writers' Workshop Dec 2022

Who's Publishing What: The Sweet Spot, Erma Bombeck Writers' Workshop

Erma Bombeck Writers' Workshop Blog

"Warm." "Witty." Big-hearted." Those are just a few of the descriptions from advance readers about Amy Poeppel's newest novel, The Sweet Spot.

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Improving Elementary Nutrition Education Curriculum In San Francisco - A Program Analysis Of The Food Education Project, Audrey N. Chang Dec 2022

Improving Elementary Nutrition Education Curriculum In San Francisco - A Program Analysis Of The Food Education Project, Audrey N. Chang

Master's Projects and Capstones

Childhood obesity and food insecurity are problems within San Francisco, California. The purpose of this program analysis is to assess the Food Education Project (FEP), which is one of many projects addressing nutrition education and the long-term public health impact is to solve the problems of food insecurity and childhood obesity. Through primary data collection, students shared their honest feelings about food and were able to openly discuss what they know and do not know about food. A literature review was conducted through research from various databases from the University of San Francisco to identify not only current interventions but …

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Problems And Suggestions To Improve Pronunciation Skills Of English Language Learners In China, Yi Fang Dec 2022

Problems And Suggestions To Improve Pronunciation Skills Of English Language Learners In China, Yi Fang

Master's Projects and Capstones

This project is based on the input hypothesis theoretical framework. The literature review explores the importance of pronunciation in English communication, problems with pronunciation and what causes them will be talked about for people learning English. Lastly, since the goal of this field project is to help English language learners in China improve their pronunciation, the third theme is about how to solve pronunciation problems and what learners need. One of the conclusions is that Chinese language learners' performance in the English language is significantly influenced by motivation, attitudes, parental support, openness to communication, and other linguistic and nonlinguistic factors. …

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Sequencing An Inserted Concatemer In Caenorhabditis Elegans Strain Hlh-29::Gfp, Simon T. Anderson Dec 2022

Sequencing An Inserted Concatemer In Caenorhabditis Elegans Strain Hlh-29::Gfp, Simon T. Anderson

Senior Honors Projects, 2020-current

Hairy/Enhancer of Split (HES) proteins and their homologs play vital roles in the development of animals, and in the regulation of cancer and other diseases. HLH-29 is an REF-1 family protein and a Caenorhabditis elegans homolog of human HES proteins. A transgenic animal model has been developed to facilitate analyses of this protein, containing an inserted concatemer of the green fluorescent protein reporter gene, regulated by the hlh-29 promoter, and a mutant rol-6 allele. Though the strain has been used previously, the location and structure of the insertion has been unknown. Sequencing of the whole hlh-29::gfp genome with high-molecular weight …

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Roles Of Individual Protein In De Novo Polycomb Protein Recruitment, Piao Ye Dec 2022

Roles Of Individual Protein In De Novo Polycomb Protein Recruitment, Piao Ye

Biological Sciences Theses and Dissertations

Polycomb Group (PcG) proteins are evolutionarily conserved epigenetic transcriptional regulators that maintain the transcriptional repression of silenced genes by maintaining heritable chromatin states. PcG proteins first discovered as repressors of Hox genes in Drosophila, later were shown to regulate a wide range of genes. In mammals, PcG proteins are involved in maintaining pluripotent state of stem cells and controlling cell differentiation. Misexpression of PcG protein leads to cancers like lymphoma and melanoma. PcG proteins maintain rather than initiate transcriptional repression, once PcG – mediated repression is established it can be maintained through an unlimited number of cycles. Most studies of …

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Dissecting Interactions Across Gene Regulatory Layers In C. Elegans, Morgan Taylor Dec 2022

Dissecting Interactions Across Gene Regulatory Layers In C. Elegans, Morgan Taylor

Biological Sciences Theses and Dissertations

The nematode Caenorhabditis elegans is a powerful tool for studying nervous system genetics. Though relatively simple compared to mammals, C. elegans boasts a remarkably well-conserved neuronal genome and proteome, and its utility in the characterization of neuronal genes has been well-established. However, gene expression is often controlled by complex interactions between multiple genes, and teasing apart the functions of individual genes within such networks remains a challenge. Dissecting these interaction networks is crucial in determining the multifaceted functions of important, conserved regulatory genes. Here we explore interactions between gene regulatory layers in the C. elegans nervous system, employing a synthetic …

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Hysterical, Xochiyollotl Harbison Dec 2022

Hysterical, Xochiyollotl Harbison

Art

Hysterical is an exhibition consisting of 11 ceramic sculptures, five paintings, and four digital prints. The work in this show dissects my interactions and experiences with womanhood, femininity, fatness, gender and sexuality. Working within three main themes, I attempt to find my place within those constructs; the first being my relationship with my body and my existence within that body in relation to the rest of the world, the exploitation of and oppression of women and feminine presenting people economically, politically, and socially, and lastly, the onus of violence and the idea of protection. Using familiar imagery as metaphor, I …

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Digital Platform To Aid Youth Substance Abuse Prevention, Bingxuan Li Dec 2022

Digital Platform To Aid Youth Substance Abuse Prevention, Bingxuan Li

Discovery Undergraduate Interdisciplinary Research Internship

Through research and interviews, I discovered that a significant portion of students in Africa become drug addicts and drop out of school. The solution is to prevent youth substance abuse before it happens, so that more students in Africa may continue their education. With the strong motivation of expanding African student involvement in higher education, I participated DURI program to increase higher education rates in the Democratic Republic of the Congo, Africa. The local government is establishing rehabilitation centers to monitor at-risk students and prevent youth substance abuse, but due to extremely limited resources, it is critical to evaluate the …

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Comparison Of Arctic Alaska Historical Snow Data With Satellite-Derived Benchmarks And Model Results Using Ilamb Software, Mary Szatkowski Dec 2022

Comparison Of Arctic Alaska Historical Snow Data With Satellite-Derived Benchmarks And Model Results Using Ilamb Software, Mary Szatkowski

Engineering

Understanding and modeling the permafrost system, hydrologic cycle, energy balance, and biologic systems in the Arctic are dependent, in part, on snow depth and snow distribution. Point-source snow measurements provide ground-truth observations of snow depth and snow water equivalent, although these measurements may be limited in their spatial and temporal distributions. Satellite-derived remote sensing products and gridded model output provide spatial coverage of snow properties, but their applicability is affected by their balance of resolution, computational speed, and accuracy confidence. The goal of this research is to assess the performance of three snow data products derived from remote sensing techniques …

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Stories, Elizabeth Stuart Phelps, Roxanne Harde , Editor Dec 2022

Stories, Elizabeth Stuart Phelps, Roxanne Harde , Editor

Zea E-Books Collection

Today, Elizabeth Stuart Phelps (1844–1911) is best known for a handful of her novels: The Gates Ajar (1868), The Silent Partner (1871), and The Story of Avis (1877). During her life, however, the short story was a hugely popular genre in which she was fully invested and where she made a good deal of her living. Stories were her earliest and latest publications, and they were work that she both enjoyed and employed to greater ends. From 1864 to her death in 1911, she published almost one hundred and fifty short stories in the leading periodicals of the day. This …

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Aging Out Or In: Musings On Ages And Stages, Renee Burns Lonner Dec 2022

Aging Out Or In: Musings On Ages And Stages, Renee Burns Lonner

Erma Bombeck Writers' Workshop Blog

My grandsons are about to age out of day camp, my kids have aged out of "young" and are now credibly middle-aged and I have aged out of my peer group — next steps, anyone?

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Towards Multipronged On-Chip Memory And Data Protection From Verification To Design And Test, Senwen Kan, Jennifer Dworak Dec 2022

Towards Multipronged On-Chip Memory And Data Protection From Verification To Design And Test, Senwen Kan, Jennifer Dworak

Computer Science and Engineering Theses and Dissertations

Modern System on Chips (SoCs) generally include embedded memories, and these memories may be vulnerable to malicious attacks such as hardware trojan horses (HTHs), test access port exploitation, and malicious software. This dissertation contributes verification as well as design obfuscation solutions aimed at design level detection of memory HTH circuits as well as obfuscation to prevent HTH triggering for embedded memory during functional operation. For malicious attack vectors stemming from test/debug interfaces, this dissertation presents novel solutions that enhance design verification and securitization of an IJTAG based test access interface. Such solutions can enhance SoC protection by preventing memory test …

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An Efficient Integrated Circuit Simulator And Time Domain Adjoint Sensitivity Analysis, Jiahua Li Dec 2022

An Efficient Integrated Circuit Simulator And Time Domain Adjoint Sensitivity Analysis, Jiahua Li

Electrical Engineering Theses and Dissertations

In this paper, we revisit time-domain adjoint sensitivity with a circuit theoretic approach and an efficient solution is clearly stated in terms of device level. Key is the linearization of the energy storage elements (e.g., capacitance and inductance) and nonlinear memoryless elements (e.g., MOS, BJT DC characteristics) at each time step. Due to the finite precision of computation, numerical errors that accumulate across timesteps can arise in nonlinear elements.

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In Band Full Duplex For Wireless Communication, A Medium Access Control Perspective, Yazeed Alkhrijah Dec 2022

In Band Full Duplex For Wireless Communication, A Medium Access Control Perspective, Yazeed Alkhrijah

Electrical Engineering Theses and Dissertations

In-band full duplex (IBFD) for wireless communication is defined as the ability of a node to send and receive data simultaneously by using the same frequency band. IBFD has the potential to double the spectral efficiency of wireless networks. In addition, IBFD improves security by mystifying any eavesdropper with multiple transmitted signals in a single frequency. Also, IBFD reduces the end-to-end transmission delay and solves the hidden terminal and exposed terminal problems. However, IBFD suffers from self-interference. Canceling self-interference (SI) is the main challenge in enabling IBFD. Another challenge for IBFD is to manage access to the network. IEEE802.11 are …

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Compact Formulation Of Multicommodity Network Flows With Applications To The Backhaul Profit Maximization Problem And Fixed Charge Network Flow Problem, Yulan Bai Dec 2022

Compact Formulation Of Multicommodity Network Flows With Applications To The Backhaul Profit Maximization Problem And Fixed Charge Network Flow Problem, Yulan Bai

Operations Research and Engineering Management Theses and Dissertations

The triples formulation is a compact formulation of multicommodity network flow problems that provides a different representation of flow than the traditional and widely used node-arc and arc-path approaches. In the literature, the triples formulation has been applied successfully to the maximum concurrent flow problem and to a network optimization problem with piecewise linear convex costs. This dissertation applies the triples formulation to the backhaul profit maximization problem (BPMP) and the fixed charge network flow problem (FCNF). It is shown that the triples representation of multicommodity flow significantly reduces the number of variables and constraints in the mixed integer programming …

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2022 Fall Commencement Program For The University Of Arkansas At Little Rock., University Of Arkansas At Little Rock. Records And Registration Dec 2022

2022 Fall Commencement Program For The University Of Arkansas At Little Rock., University Of Arkansas At Little Rock. Records And Registration

Commencement Programs

No abstract provided.

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Energy Dissipation In A Sand Damper Under Cyclic Loading, Ehab Sabi Dec 2022

Energy Dissipation In A Sand Damper Under Cyclic Loading, Ehab Sabi

Civil and Environmental Engineering Theses and Dissertations

Various seismic and wind engineering designs and retrofit strategies have been in development to meet structures' proper and safe operation during earthquake and wind excitation. One such method is the addition of fluid and particle dampers, such as sand dampers, in an effort to reduce excessive and dangerous displacements of structures. The present study implements the discrete element method (DEM) to assess the performance of a pressurized sand damper (PSD) and characterize the dissipated energy under cyclic loading. The idea of a PSD is to exploit the increase in shearing resistance of sand under external pressure and the associated ability …

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Leveraging Crowdsourced Navigation Data In Roadway Pluvial Flash Flood Prediction, Arefeh Safaei-Moghadam Dec 2022

Leveraging Crowdsourced Navigation Data In Roadway Pluvial Flash Flood Prediction, Arefeh Safaei-Moghadam

Civil and Environmental Engineering Theses and Dissertations

This dissertation develops and tests a new data-driven framework for short-term roadway pluvial flash flood (PFF) risk estimation at the scale of road segments using crowdsourced navigation data and a simplified physics-based PFF model. Pluvial flash flooding (PFF) is defined as localized floods caused by an overwhelmed natural or engineered drainage system. This study develops a data curation and computational framework for data collection, preprocessing, and modeling to estimate the risk of PFF at road-segment scales. A hybrid approach is also developed that couples a statistical model and a simplified physics-based simulation model in a machine learning (ML) model to …

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Silicon Photonics Trench Coupler Design, Foundry Fabrication, And Characterization, Evan Stewart Dec 2022

Silicon Photonics Trench Coupler Design, Foundry Fabrication, And Characterization, Evan Stewart

Mechanical Engineering Research Theses and Dissertations

In this thesis, compact 2-by-2 and 4-by-4 trench couplers in the silicon photonics material system have been designed, fabricated, and tested. The couplers operate on the principle of frustrated total internal reflection, allowing a footprint significantly smaller than industry standard y-couplers. As photonic integration evolves, larger scales of integration will benefit from such reduction in component size. The couplers were manufactured at the AIM silicon photonics foundry using processes available to multi-project wafer runs. The characterization of the trench couplers involves novel use of U-turns to provide efficiency estimates. For this generation of trench coupler, the experimental loss is measured …

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Experimental And Numerical Studies On Laser Hot Wire Cladding By A High-Power Direct Diode Laser, Mingpu Yao Dec 2022

Experimental And Numerical Studies On Laser Hot Wire Cladding By A High-Power Direct Diode Laser, Mingpu Yao

Mechanical Engineering Research Theses and Dissertations

Laser hot wire cladding is an advanced surface modification technology. It has been extensively growing during the last decades due to its high deposition rate, good metallurgical bonding between the substrate and clad layer, low dilution ratio, and small heat-affected zone. There are many kinds of lasers widely used in the laser cladding process. The high-power direct diode laser is widely welcomed because of its high energy efficiency, high electro-optic conversion efficiency, low cost, and high reliability. A rectangular-shaped direct diode laser beam combined with hot wire feeding can achieve a lower dilution depth with a uniform fusion line compared …

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Novel Locomotion Methods In Magnetic Actuation And Pipe Inspection, Adam Cox Dec 2022

Novel Locomotion Methods In Magnetic Actuation And Pipe Inspection, Adam Cox

Mechanical Engineering Research Theses and Dissertations

There is much room for improvement in tube network inspections of jet aircraft. Often, these inspections are incomplete and inconsistent. In this paper, we develop a Modular Robotic Inspection System (MoRIS) for jet aircraft tube networks and a corresponding kinematic model. MoRIS consists of a Base Station for user control and communication, and robotic Vertebrae for accessing and inspecting the network. The presented and tested design of MoRIS can travel up to 9 feet in a tube network. The Vertebrae can navigate in all orientations, including smooth vertical tubes. The design is optimized for nominal 1.5" outside diameter tubes. We …

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Improved Computational Tools For Infrasound Analysis, Jordan W. Bishop Dec 2022

Improved Computational Tools For Infrasound Analysis, Jordan W. Bishop

Geosciences

Infrasound describes low frequency (≤ 20 Hz) acoustic waves that can propagate long ranges (≥ 1000 km) through wave guides in the atmosphere. This characteristic makes infrasonic waves a useful monitoring technology for a variety of violent phenomena such as volcanic eruptions. However, source processes may be complex, and infrasound waves are continually modified as they interact with the ground and dynamic atmosphere along their propagation path. Additionally, infrasound still has a data quantity problem: vast amounts of raw data are now continuously generated from permanent arrays distributed around the world, but ground truth information, when possible, may be difficult …

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Processes In The Percolation Zone In Southwest Greenland: Challenges In Modeling Surface Energy Balance And Melt, And The Role Of Topography In The Formation Of Ice Slabs, Federico Covi Dec 2022

Processes In The Percolation Zone In Southwest Greenland: Challenges In Modeling Surface Energy Balance And Melt, And The Role Of Topography In The Formation Of Ice Slabs, Federico Covi

Geosciences

Increased surface melt in the percolation zone of Greenland causes significant changes in the firn structure, directly affecting the surface mass balance of the ice sheet and the amount and timing of meltwater runoff. Thick impermeable layers, referred to as ice slabs, are preventing melt water percolation and refreezing in the firn favoring lateral movement of water and direct runoff to the oceans. The objective of this dissertation is to enhance the understanding of these processes by modeling the surface energy balance and resulting melt, and investigating the spatial and temporal changes in firn surface properties and associated water movement …

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Acoustic And Seismic Signature Of Sustained Volcanic Eruptions, Julia E. Gestrich Dec 2022

Acoustic And Seismic Signature Of Sustained Volcanic Eruptions, Julia E. Gestrich

Geosciences

Volcanic eruptions of any size can pose a significant risk to the life and livelihood of humans, as well as to infrastructure and the economy. Understanding the dynamics of an eruption is crucial to providing timely and accurate assessments of the eruption and associated hazard. Ideally the monitoring of volcanic unrest and eruption dynamics is done remotely to minimize exposure to volcanologists and maximize the spatial monitoring coverage of instruments. Another important factor is to have real-time data to facilitate rapid analysis and interpretation. Seismic and acoustic (infrasound) waves have proven useful in terms of remote real-time volcano monitoring. However, …

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Accuracy, Precision, And Efficiency: Comparing Mapping Techniques In Nixtun-Ch’Ich’, Petén, Guatemala, Gabriela Zygadlo Dec 2022

Accuracy, Precision, And Efficiency: Comparing Mapping Techniques In Nixtun-Ch’Ich’, Petén, Guatemala, Gabriela Zygadlo

Theses and Dissertations

New archaeological survey technologies have transformed the way in which sites are mapped. Nixtun-Ch’ich’ in Petén, Guatemala has been surveyed in a variety of ways including a theodolite with an electronic distance measurement (EDM), total station (TS), laser imaging, detection and ranging (LiDAR), and photogrammetry. This paper aims to compare various mapping techniques and their accuracy, precision, and efficiency when pertaining specifically to mapping in Nixtun-Ch’ich’, Petén, Guatemala. The goal is to evaluate which technique is most efficient when mapping in the site by considering the variables of cost, time, and environment of the site. The paper also considers the …

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