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Finite-Time State Estimation For An Inverted Pendulum Under Input-Multiplicative Uncertainty, William Mackunis, Sergey V. Drakunov, Anu Kossery Jayaprakash, Krishna Bhavithavya Kidambi, Mahmut Reyhanoglu Oct 2020

Finite-Time State Estimation For An Inverted Pendulum Under Input-Multiplicative Uncertainty, William Mackunis, Sergey V. Drakunov, Anu Kossery Jayaprakash, Krishna Bhavithavya Kidambi, Mahmut Reyhanoglu

Publications

A sliding mode observer is presented, which is rigorously proven to achieve finite-time state estimation of a dual-parallel underactuated (i.e., single-input multi-output) cart inverted pendulum system in the presence of parametric uncertainty. A salient feature of the proposed sliding mode observer design is that a rigorous analysis is provided, which proves finite-time estimation of the complete system state in the presence of input-multiplicative parametric uncertainty. The performance of the proposed observer design is demonstrated through numerical case studies using both sliding mode control (SMC)- and linear quadratic regulator (LQR)-based closed-loop control systems. The main contribution presented here is the rigorous …

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Identifying Dietary Patterns In Irish Schoolchildren And Their Association With Nutritional Knowledge And Markers Of Health Before And After Intervention, Alison Merrotsy, Aoife L. Mccarthy, Seán Lacey, Tara Coppinger Oct 2020

Identifying Dietary Patterns In Irish Schoolchildren And Their Association With Nutritional Knowledge And Markers Of Health Before And After Intervention, Alison Merrotsy, Aoife L. Mccarthy, Seán Lacey, Tara Coppinger

Publications

The aim of the study was to identify dietary patterns (DP) and examine differences in anthropometric measures, blood pressure (BP), cardiorespiratory fitness and nutritional knowledge of 6- and 10-year-old children at baseline and following a nutrition and physical activity intervention, with respect to DP and treatment group. This is a longitudinal study. Food diary, nutritional knowledge questionnaire and 550-m walk/run test measured dietary intake, nutritional knowledge and cardiorespiratory fitness, respectively. BP, weight, height and waist circumference were also measured and BMI and waist-to-height ratio (WHtR) were derived. All measurements were performed at baseline and following intervention. Two primary schools (one …

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Case Study: Unsaturated Embankment Failure On Soft Soils, Ghada Ellithy, Timothy D. Stark Oct 2020

Case Study: Unsaturated Embankment Failure On Soft Soils, Ghada Ellithy, Timothy D. Stark

Publications

This paper describes the application of unsaturated soil mechanics to an interstate connecting-ramp embankment that failed during construction. Specifically, matric suction is incorporated into the calculation of the tension crack (TC) depth induced by desiccation and strain incompatibility and the contribution of matric suction to embankment shear strength. The results are compared with field observations to assess the viability of unsaturated soil mechanics in modeling compacted embankments in stability analyses. Results from this study suggest that using unsaturated shear strength parameters while introducing a TC in the compacted fill yields a reasonable inverse analysis of this interstate embankment. This may …

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Parental Online Information Access And Childhood Vaccination Decisions In North America: Scoping Review, Sarah Ashfield, Lorie Donelle Phd, Rn, Fcan Oct 2020

Parental Online Information Access And Childhood Vaccination Decisions In North America: Scoping Review, Sarah Ashfield, Lorie Donelle Phd, Rn, Fcan

Publications

BACKGROUND: Immunizing children throughout their early years prevents the spread of communicable disease and decreases the morbidity and mortality associated with many vaccine-preventable diseases. Searching online allows individuals rapid access to health information. OBJECTIVE: The purpose of this review was to develop an understanding of the existing literature of parents' online health information-seeking behaviors to inform their vaccination choices for their children and to identify gaps in the literature around parents' use of online health information and their vaccination choices. METHODS: A scoping review of peer-reviewed literature from Canada and the United States was performed. The following databases were utilized …

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The Impact Of Motivation On Continued Vfr Into Imc: Another Perspective To An On-Going Problem, Sabrina Woods, Scott R. Winter, Stephen Rice, Steven Hampton, Paul Craig Oct 2020

The Impact Of Motivation On Continued Vfr Into Imc: Another Perspective To An On-Going Problem, Sabrina Woods, Scott R. Winter, Stephen Rice, Steven Hampton, Paul Craig

Publications

Continued flight under visual flight rules into instrument meteorological conditions remains the predominant cause for fatal accidents by percentage for general aviation aircraft operations. There are gaps in the research in determining how motivation might influence the decision-making process. Therefore, the purpose of this study was to determine how motivation and meteorological conditions might affect a pilot’s willingness to persist in flight into meteorological conditions. Four hundred and fifty-four general aviation pilots participated in a mixed factorial experiment to assess their willingness to persist in varying weather conditions. Participants were randomly assigned into one of three motivation groups (intrinsic, extrinsic, …

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Finding Community And Overcoming Barriers: Experiences Of Queer And Transgender Postsecondary Students In Mathematics And Other Stem Fields, Elizabeth Kersey, Matthew Voigt Oct 2020

Finding Community And Overcoming Barriers: Experiences Of Queer And Transgender Postsecondary Students In Mathematics And Other Stem Fields, Elizabeth Kersey, Matthew Voigt

Publications

Although there is little research on the experiences of queer and/or transgender postsecondary students in science, technology, engineering, and mathematics (STEM) fields, we can infer from current literature that these subjects may be less welcoming than the humanities and social sciences. We conducted two studies to investigate this possibility: (1) a narrative inquiry study with postsecondary transgender students and (2) a grounded theory narrative study with undergraduate queer students. Transgender students who had transitioned indicated that they were subjected to lower expectations when presenting as female, but transgender women experienced this change as positive, since their treatment by others was …

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Growing Collaborative Outreach Efforts To Support The Well-Being Of Communities, Jessica Kohout-Tailor, Lili Klar Oct 2020

Growing Collaborative Outreach Efforts To Support The Well-Being Of Communities, Jessica Kohout-Tailor, Lili Klar

Publications

Libraries of all types provide outreach efforts for their patrons to reduce stress and promote well-being. Public, school, and academic libraries often partner with external entities to provide yoga, therapy dogs, and other creative activities for their patrons. Although collaboration is expected in public, school, and academic libraries, how to collaborate and/or grow collaborative efforts is lacking in the library literature. A former public library employee and a former school librarian came together to pilot a de-stressing program for students at their academic library and each semester have continued to grow their collaborative efforts with partners on and off-campus. Strategies …

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Expanding Perspectives Through Flight: Transformation Of Fear Through Arational Ways Of Knowing, Barbara Bickel Oct 2020

Expanding Perspectives Through Flight: Transformation Of Fear Through Arational Ways Of Knowing, Barbara Bickel

Publications

Danger and fear permeates all parts of our lives during this time of the COVID-19 pandemic. This arts-based auto-ethnographic writing explores living in a perpetual liminal space of unknowing is a disorienting experience at collective and individual levels. Living with and through the pandemic experience has offered a novel opportunity to stop and face both life and death from alternative perspectives. It gives rise to the question: Can we face our fear and relearn how to be in flight to gain greater perspectives rather than for escape and avoidance as only victims? The gift of symbolic and mythological flight offers …

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Life Cycle Environmental Impact Of Houston Metro System – Evaluation Of Electric Alternatives, Raghava R. Kommalapati Ph.D, Hongbo Du Ph.D, Doeun Choe Ph.D Oct 2020

Life Cycle Environmental Impact Of Houston Metro System – Evaluation Of Electric Alternatives, Raghava R. Kommalapati Ph.D, Hongbo Du Ph.D, Doeun Choe Ph.D

Publications

In the Greater Houston Area, mobile sources (on-and off-road vehicles) contribute the largest share of nitrogen oxide (NOx) emissions and second-highest share of volatile organic (VOC) emissions. The Houston METRO system is a key element in Houston's infrastructure that can be expanded to lower emissions of criteria air pollutants (CAPs) and greenhouse gases (GHGs) and improve regional air quality. Currently, there is no comparative study for relative emissions and environmental impacts between passenger automobiles and METRO routes in Houston. Our research addressed this critical gap and developed environmental life cycle assessment for conventional diesel buses, diesel hybrid buses, and alternative …

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Analysis Of The Causes Of Workforce Shortages: Create Guidelines For Education And Workforce Development In Transportation To Generate Future Careers For The Navajo Nation, Gholam Ehteshami Oct 2020

Analysis Of The Causes Of Workforce Shortages: Create Guidelines For Education And Workforce Development In Transportation To Generate Future Careers For The Navajo Nation, Gholam Ehteshami

Publications

Activities were dedicated to the collections, summarizations and categorizing more research articles related to the analysis of the sources of workforce deficiencies. The focus was on the technical and educational solution methods and strategies, guideline relevant to the workforce development. The times also were committed to the development of educational modules related to carrier’s opportunities in the transport industry into a couple of courses. Several NTU STEM students were interviewed, selected and introduced for the summer research internships in transportation areas to LSU Tran SET center. Outreach activities conducted with the community and some of the high school professionals related …

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Development, Education, And Implementation Of A Low-Cost Audio Sensor-Based Autonomous Surveillance System For Smart And Connected Transportation Infrastructure Construction And Maintenance, Yong-Cheol Lee, Jin-Woo Choi Ph.D Oct 2020

Development, Education, And Implementation Of A Low-Cost Audio Sensor-Based Autonomous Surveillance System For Smart And Connected Transportation Infrastructure Construction And Maintenance, Yong-Cheol Lee, Jin-Woo Choi Ph.D

Publications

Each DOT has to govern and oversee an enormous number of transportation construction and maintenance projects. However, since a transportation construction project entails several miles of a job site including numerous work tasks and equipment operations, it has been increasingly challenging for each DOT to consistently monitor progress of all projects in each State as well as efficiently evaluate work performance. In particular, with limited human resources and time, DOTs in Region 6 States have managed large-scale transportation construction and maintenance projects by a human inspection and recovered direct and indirect damages of transportation infrastructure systems caused from the recent …

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Influence Of Powder Activated Carbon (Pac) In Fly Ash On The Properties Of Concrete, Zahid Hossain, Sumon Roy Oct 2020

Influence Of Powder Activated Carbon (Pac) In Fly Ash On The Properties Of Concrete, Zahid Hossain, Sumon Roy

Publications

Class C Fly Ash (CFA) is commonly used as supplementary cementitious material (SCM) in producing concrete by ready-mix concrete contractors in Arkansas. However, CFA can be used as a partial replacement of Ordinary Portland Cement (OPC) if it meets certain ASTM requirements. It is believed that the presence of powder activated carbon (PAC) in CFA increases the demand of the air-entraining agent (AEA) to achieve specified air content, and this is a concern to transportation agencies such as the Arkansas Department of Transportation (ARDOT) and concrete producers in recent years. Thus, the main goal of this research is to assess …

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Stem Laboratory Safety On A Shoestring, Emily K. Faulconer Oct 2020

Stem Laboratory Safety On A Shoestring, Emily K. Faulconer

Publications

Classroom laboratory activities promote learner development in scientific reasoning and interest in science. Learner safety is a critical concern. Many states have adopted OSHA standards (e.g. The Laboratory Standard 29 CFR 1910.1450 or Hazard Communication Standard 29 CFR 1910.1200) or developed their own standards to protect public school teachers and staff, but these do not extend to students.

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Variable Fall Climate Conditions On Carbon Assimilation And Spring Phenology Of Young Peach Trees, Brian T. Lawrence, Juan Carlos Melgar Oct 2020

Variable Fall Climate Conditions On Carbon Assimilation And Spring Phenology Of Young Peach Trees, Brian T. Lawrence, Juan Carlos Melgar

Publications

Variable fall temperature and moisture conditions may alter leaf senescence of deciduous fruit trees, influencing carbon assimilation before dormancy and phenology the following spring. This study explored gas exchange of young peach trees (Prunus persica (L.) Batsch) when senescence proceeded normally or was delayed during the fall under two soil moisture treatments: Well-irrigated trees or water deficit. Results showed leaf carbon assimilation was similar between the senescence treatments, but whole tree assimilation was estimated to be greater in delayed senescence trees compared to normal senescence trees based on timing of defoliation and total leaf area. The effect of soil moisture …

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Delivering Library Services In A Time Of Crisis; Technological Higher Education Association Libraries Responding To Covid 19 From March August 2020., Mary Delaney, Johanna Archbold, Ann Cleary, Lorna Dodd, Patrick Doherty, Terry O'Brien, Jean Ricken, Margaret Waldron Oct 2020

Delivering Library Services In A Time Of Crisis; Technological Higher Education Association Libraries Responding To Covid 19 From March August 2020., Mary Delaney, Johanna Archbold, Ann Cleary, Lorna Dodd, Patrick Doherty, Terry O'Brien, Jean Ricken, Margaret Waldron

Publications

This paper presents the experience of eight Irish academic libraries from the Technological Higher Education Association (THEA) from March – August 2020 while delivering library services during the COVID-19 pandemic. It presents a snapshot of their experience at this time outlining the challenges faced by libraries in closing their doors and pivoting to delivering library services only. For much of this time library buildings were closed to students thereby making, study desks, group spaces, PCs, access to collections and to library staff at information desks unavailable. Instead library staff worked remotely directing students to the vast array of resources available …

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Development Of A Grass Measurement Optimisation Tool To Efficiently Measure Herbage Mass On Grazed Pastures, D. J. Murphy, B. O'Brien, Michael D. Murphy Oct 2020

Development Of A Grass Measurement Optimisation Tool To Efficiently Measure Herbage Mass On Grazed Pastures, D. J. Murphy, B. O'Brien, Michael D. Murphy

Publications

Accurate and efficient estimation of herbage mass is essential for optimising grass utilisation and increasing profit for pasture farming. There is no definitive sampling protocol for grass measurement on Irish pastures. This paper presents the Grass Measurement Optimisation Tool (GMOT), designed to generate measurement protocols that optimise for time and accuracy. The GMOT was designed in the form of a decision support tool that generates interactive paddock maps that guide the farmer on how to optimally measure their pastures in a random stratified manner based on GPS co-ordinates, resulting in accurate non-biased estimations of mean herbage mass. Rising plate meter …

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Real-Time Early Detection And Monitoring Of Flooding Using Low-Cost Highly Sensitive Ultrasound Sensing Of Water Level, Suyun Ham Ph.D, Seongjin Noh Ph.D, Dong-Jun Seo Ph.D, Sanggoo Kang, Dafnik Saril Kumar David Oct 2020

Real-Time Early Detection And Monitoring Of Flooding Using Low-Cost Highly Sensitive Ultrasound Sensing Of Water Level, Suyun Ham Ph.D, Seongjin Noh Ph.D, Dong-Jun Seo Ph.D, Sanggoo Kang, Dafnik Saril Kumar David

Publications

Flooding poses safety hazards to motorists, emergency and maintenance crews and may cause costly damage to transportation infrastructure and its operation. Flash flooding, in particular, causes the most flood-related deaths According to NOAA, in 2017 alone, flash flooding also caused $60.7 billion worth of economic damage. Low-water crossings are among the first places where deaths and significant damages to vehicles occur during flooding. With flash flooding, when a critical corridor is blocked by a high level of water, it affects the safety of the general public. To keep the critical corridors open as long as possible, and to minimize losses …

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Abq Streets: Creating Alternative Residential Street Designs, Gregory Rowangould Ph.D, Nick N. Ferenchak Ph.D Oct 2020

Abq Streets: Creating Alternative Residential Street Designs, Gregory Rowangould Ph.D, Nick N. Ferenchak Ph.D

Publications

This research evaluates opportunities for retrofitting residential streets with alterative designs with the overall goal of improving their function, reducing their negative impacts and reducing maintenance costs. This is accomplished through three main research tasks. First, we conduct a comprehensive review of the street design literature with a focus on studies that report how alterative or unique designs that are relevant to the residential street context affect travel behavior, traffic flow, safety, crime and environmental impacts. We then survey residential streets in several study neighborhoods to measure typical design features and cross sections. With this information we then evaluate which …

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Selecting The Most Feasible Construction Phasing Plans For Urban Highway Rehabilitation Projects, Kunhee Choi Ph.D, H. David Jeong Ph.D, Yong-Cheol Lee, Yangtian Yin Oct 2020

Selecting The Most Feasible Construction Phasing Plans For Urban Highway Rehabilitation Projects, Kunhee Choi Ph.D, H. David Jeong Ph.D, Yong-Cheol Lee, Yangtian Yin

Publications

Despite the abundance of research that has aimed to understand the effects of highway work zones, very little definitive information is available concerning the determination of work zone length (WZL). Quantitative studies that holistically model WZL are very rare. To fill this gap, this study identifies critical factors affecting WZL and develops decision support models that determine the optimal WZL in a balanced tradeoff between motorists’ inconvenience due to traffic disruption and their opportunity cost. A high-confidence dataset was created by conducting a series of scheduling and traffic simulations and analyses. The results revealed that traffic loading and work zone …

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Optimizing The Geometric Configuration And Manufacturing Process Of High Mast Illumination Poles, Arturo Montoya Ph.D, Adolfo Matamoros Ph.D, Reza Nasouri, Echizeni Ikpah, Arsalan Majlesi Oct 2020

Optimizing The Geometric Configuration And Manufacturing Process Of High Mast Illumination Poles, Arturo Montoya Ph.D, Adolfo Matamoros Ph.D, Reza Nasouri, Echizeni Ikpah, Arsalan Majlesi

Publications

This work presents the development of a high-fidelity model that accounts for the cumulative effect of welding and hot- dip galvanizing on the determining the resulting residual stresses and deformations induced during the manufacturing process of high mast illumination poles (HMIPs). This model is meant to elucidate the root causes of weld toe cracks in HMIPs. A TxDOT pole-to-base plate connection detail was used as the reference model in the analysis. Welding was modeled using the plug-in Abaqus Welding Interface (AWI), which automatically implements a series of sequential thermal and mechanical analyses. Then, the welding stress results were used as …

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Bridge Construction Monitoring Using Lidar For Quantified, Objective Quality-Control Quality-Assurance (Qoqcqa), Fernando Moreu Ph.D, Chris Lippitt Ph.D, Xinxing Yuan Oct 2020

Bridge Construction Monitoring Using Lidar For Quantified, Objective Quality-Control Quality-Assurance (Qoqcqa), Fernando Moreu Ph.D, Chris Lippitt Ph.D, Xinxing Yuan

Publications

Transportation infrastructure construction quality control and quality assurance demands construction monitoring by field inspectors. Currently, these inspectors monitor infrastructure by measuring and photographing structures. These tasks allow them to assess any correction decision during construction or to inform about the quality of the construction process for the future. In order to promote and objective decisions obtained during infrastructure construction, the proposed research project developed and implemented a methodology to measure construction progress and compared it with the designed 3D shape, quantifying the difference. This proposed project includes implementation for the development of DOT standards that could be added in near …

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Development Of Corrosion Inhibiting Geopolymers Based Cement For Transportation Infrastructure, Homero Castaneda, Miladin Radovic, Changkyu Kim, Oscar Huang Oct 2020

Development Of Corrosion Inhibiting Geopolymers Based Cement For Transportation Infrastructure, Homero Castaneda, Miladin Radovic, Changkyu Kim, Oscar Huang

Publications

Geopolymers are gaining attention as affordable, sustainable, and eco-friendly replacement for Ordinary Portland Cement (OPC) in concrete civil structures. More importantly, Geopolymer-based Cement (GPC) provide sustainable and environmentally friendly alternative to OPCs as GPC can be processed at room temperatures from aqueous solutions of waste materials (e.g., fly ash) or abounded natural sources (e.g., clay) and thus reduce significant CO2 production associated with processing of OPC. Although, a lot of work has been done on improving mechanical properties of GPC over the last two decades, there are only a few studies on effects of GPC concrete on steel rebar …

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Eco-Friendly Stabilization Of Sulfate-Rich Expansive Soils Using Geopolymers For Transportation Infrastructure, Xinbao Yu, Anand Puppala, Miladin Radovic, Sayantan Chakraborty, Jungyeon Jang, Oscar Huang Oct 2020

Eco-Friendly Stabilization Of Sulfate-Rich Expansive Soils Using Geopolymers For Transportation Infrastructure, Xinbao Yu, Anand Puppala, Miladin Radovic, Sayantan Chakraborty, Jungyeon Jang, Oscar Huang

Publications

Traditional calcium-based stabilizers, such as lime, to stabilize sulfate-rich expansive soils, are lasting-challenges in geotechnical engineering. The biggest problem with using calcium-based stabilizers is that when calcium and water are exposed to sulfate-rich expansive soils, they form ettringite as an expansive mineral, which causes sulfate-induced heaving. The study aimed to investigate the feasibility of stabilizing sulfate-rich expansive soils using geopolymers for transportation infrastructure. Literature review on sulfate-induced heaving and sulfate-rich soils stabilized with geopolymers suggests a direction for how to stabilize sulfate soils using geopolymers. The engineering tests were conducted to determine the swell, shrinkage, and strength behavior of natural, …

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Facilitators And Barriers To Engagement And Effective Sotl Research Collaborations In Faculty Learning Communities, Claudia Cornejo-Happel, Xiaomei Song Oct 2020

Facilitators And Barriers To Engagement And Effective Sotl Research Collaborations In Faculty Learning Communities, Claudia Cornejo-Happel, Xiaomei Song

Publications

To determine factors that influence faculty engagement and success in faculty learning communities focused on collaborative Scholarship of Teaching and Learning (SoTL), our project gathered information on (1) faculty motivation to engage with SoTL; (2) structures that support collaboration; (3) the perceived impact of SoTL on teaching, scholarship, and faculty engagement in academic communities on campus and beyond; and (4) the role of the teaching center in supporting collaborative faculty learning communities focused on SoTL. In this explanatory, sequential design mixed-methods study, participants were asked to complete a survey on their experience as participants in faculty learning communities at a …

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Student Insights Report, Fall 2020, The Center For Student Analytics Sep 2020

Student Insights Report, Fall 2020, The Center For Student Analytics

Publications

For the past four years, the staff of the Center for Student Analytics have collaborated with dozens of units across campus to discover data-informed insights about what helps students succeed at Utah State University. The following pages highlight 20 of the most useful insights that we have come across over the past year, organized across five audiences—students, faculty, staff, university leadership, and prospective students. As you explore this report, we encourage you to see the student data as a window onto Utah State University itself. We have discovered that while big data helps us to understand how individual students are …

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Two Portions Of Sagittarius Stream In The Lamost Complete Spectroscopic Survey Of Pointing Area At Southern Galactic Cap, J. K. Zhao, Terry D. Oswalt, X. H. Ye, H. Wu, M. Yang, X. X. Xue, Y. Q. Chen, J. J. Zhan, G. Zhao Sep 2020

Two Portions Of Sagittarius Stream In The Lamost Complete Spectroscopic Survey Of Pointing Area At Southern Galactic Cap, J. K. Zhao, Terry D. Oswalt, X. H. Ye, H. Wu, M. Yang, X. X. Xue, Y. Q. Chen, J. J. Zhan, G. Zhao

Publications

We constructed a sample of 13,798 stars with Teff , log g, [Fe/H], radial velocity, proper motions and parallaxes from LAMOST DR5 and Gaia DR2 in the LAMOST Complete Spectroscopic Survey of Pointing Area (LaCoSSPAr) at the Southern Galactic Cap consisting of areas A and B. Using the distributions in both proper motions and radial velocity, we detected very significant overdensi- ties in these two areas. These substructures most likely are portions of Sagittarius (Sgr) stream. With the Density-Based Spatial Clustering of Applications with Noise (DBSCAN) algorithm, 220 candidates stream members were identified. Based upon distance to the Sun and …

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Erratum: Increased Risk Of Tinnitus Following A Trigeminal Neuralgia Diagnosis: A One-Year Follow-Up Study (J Headache Pain (2020) 21 (46) Doi: 10.1186/S10194-020-01121-6), Yen Fu Cheng, Sudha Xirasagar Mbbs., Ph.D, Tzong Han Yang, Chuan Song Wu, Yi Wei Kao, Ben Chang Shia, Herng Ching Lin Sep 2020

Erratum: Increased Risk Of Tinnitus Following A Trigeminal Neuralgia Diagnosis: A One-Year Follow-Up Study (J Headache Pain (2020) 21 (46) Doi: 10.1186/S10194-020-01121-6), Yen Fu Cheng, Sudha Xirasagar Mbbs., Ph.D, Tzong Han Yang, Chuan Song Wu, Yi Wei Kao, Ben Chang Shia, Herng Ching Lin

Publications

Following publication of the original article [1], we were notified that the following affiliations need to be added for the first author Yen-Fu Cheng: Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan.

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Large Scale Upper-Level Precursors For Dust Storm Formation Over North Africa And Poleward Transport To The Iberian Peninsula. Part I: An Observational Analysis, J.A. G. Orza, Michael L. Kaplan, S. Dhital, S. Fiedler Sep 2020

Large Scale Upper-Level Precursors For Dust Storm Formation Over North Africa And Poleward Transport To The Iberian Peninsula. Part I: An Observational Analysis, J.A. G. Orza, Michael L. Kaplan, S. Dhital, S. Fiedler

Publications

The analysis of three extreme African dust outbreaks over the Iberian Peninsula (IP) shows that a double Rossby wave breaking (RWB) process in the polar jet (PJ) creates the conditions for dust storm formation over subtropical deserts in North Africa and the restructuring of upper-level air flows critical for the dust transport poleward after ablation. Two consecutive anticyclonic RWBs initiate over the IP and the adjacent Atlantic, the first commencing 10 days before dust reaches the IP and the second three to five days later. The first RWB becomes quasi-stationary over the eastern Mediterranean when the second RWB develops. In …

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New Student Orientation: Impact Analysis Fall 2017 To Spring 2019, Amanda M. Hagman, Jacob Van Den Akker, Erik Dickamore, Lisa Simmons Sep 2020

New Student Orientation: Impact Analysis Fall 2017 To Spring 2019, Amanda M. Hagman, Jacob Van Den Akker, Erik Dickamore, Lisa Simmons

Publications

The transition to university represents a major life change more incoming students. To facilitate this transition, USU adopted a phased-orientation system that provides students information justin- time for use. Currently, Module 3 can be completed either in-person or online. This analysis explores both the impact of the phased-orientation modules and the impact of completing Module 3 online verse in-person on student persistence to the next term. METHODS: First students who completed Module 3 online were compared to students who completed Module 3 in-person. Next students who completed all 5 modules were compared to students who only completed the required modules. …

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Writing Center: Impact Analysis Fall 2014 To Fall 2018, Amanda M. Hagman, Kendall Becker, Susan B. Andersen, Star Coulbrooke, Erik Dickamore, Jasilyn Heaps Sep 2020

Writing Center: Impact Analysis Fall 2014 To Fall 2018, Amanda M. Hagman, Kendall Becker, Susan B. Andersen, Star Coulbrooke, Erik Dickamore, Jasilyn Heaps

Publications

The Utah State University (USU) Writing Center is dedicated to empowering students to express their knowledge and ideas in writing. Their approach promotes academic inquiry, critical thinking, and expressions of diversity. While research and evaluation suggest that the Writing Center significantly impacts student academic performance, the impact on student persistence is not yet clear. This report explores the association between USU’s Writing Center and students’ persistence toward graduation. METHODS: Students’ Writing Center use was captured through student log-ins at writing appointments. Students who had a record of using the Writing Center were compared to similar students who did not have …

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