Digital Commons Network^™

New Horizons Band Winter Concert, December 12, 2022 [Program], University Of Northern Iowa. School Of Music.

Music Recital Programs

Program of a music recital given by faculty, students, or guest artists from the School of Music at the University of Northern Iowa.

Challenges And Prospects For The Rock Art Of Mumba Rock-Shelter, Pastory M. Bushozi

Journal of Humanities and Social Sciences

The Mumba rock-shelter and its surrounding landscape are places where evidences for the evolution of human cognitive behaviour and other cultural practices have been uncovered. Deep and stratified archaeological deposits recorded at Mumba have shown unique distinctive technological and behavioural traits with possible connections between Middle Stone Age (MSA), Later Stone Age (LSA), Neolithic, and Iron Age cultures. Archaeological records were found associated with symbolic-revealing objects such as ochre pigments, beads, and stone rubber stained with red ochre, which express the cognitive ability of ancestors who inhabited Mumba rock-shelter and the surrounding landscape from the MSA to the present. Ochre …

Using Solar Radiation Data In Soil Moisture Diagnostic Equation For Estimating Root-Zone Soil Moisture, Olumide Omotere, Feifei Pan, Lei Wang

Faculty Publications

The soil moisture daily diagnostic equation (SMDE) evaluates the relationship between the loss function coefficient and the summation of the weighted average of precipitation. The loss function coefficient uses the day of the year (DOY) to approximate the seasonal changes in soil moisture loss for a given location. Solar radiation is the source of the energy that drives the complex and intricates of the earth-atmospheric processes and biogeochemical cycles in the environment. Previous research assumed DOY is the approximation of other environmental factors (e.g., temperature, wind speed, solar radiation). In this article, two solar radiation parameters were introduced, i.e., the …

Literature Review On Water Desalination Plant Production And Brine Disposal Methods, Grace Kollars

Department of Environmental Studies: Undergraduate Student Theses

Water scarcity is an issue all around the world because people have a lack of clean and available drinking water. One way this issue can be eased and people can have more access to water is implementing water desalination plants around the world. Since most of the water on earth cannot be drunk, there are ways to turn the over abundance of salty waters we have on this planet into fresh, drinkable water to ease the water insecurity. There are many methods out there that can be used for water desalination, most of them involving membrane technologies. The most efficient …

Analyzing Recycling Options For Wind Turbine Blade Waste, Awinita Bunner

Department of Environmental Studies: Undergraduate Student Theses

The purpose of this study was to conduct a systematic literature review to identify recycling options for wind turbine blade waste. Wind energy is a rapidly growing energy source due to its renewability and accessibility. However, the turbines that produce this energy have blades that must be replaced throughout the turbine’s lifetime. The standard disposal method of decommissioned blades is the landfill. However, problems are arising within states as landfills are being overrun by the wind turbine blades once they reach their end-of-life. Conducting this study aims to provide a list of recycling options and provide an evaluation of each …

Nucleation-Accumulation Mode Trade-Off In Non-Volatile Particle Emissions From A Small Non-Road Small Diesel Engine, Indranil Brahma, Odinmma John-Paul Ofili

Faculty Journal Articles

Small (< 8 kW) non-road engines are a significant source of pollutants such as particle number (PN) emissions. Many small non-road engines do not have diesel particulate filters (DPFs). They are so designed that air–fuel ratio (AFR) can be adjusted to control visible diesel smoke and particulate matter (PM) resulting from larger accumulation mode particles. However, the effect of AFR variation on smaller nucleation mode nanoparticle emissions is not well understood. Several studies on larger engines have reported a trade-off between smaller and larger particles. In this study, AFR was independently varied over the entire engine map of a naturally aspirated (NA) non-road small diesel engine using forced induction (FI) of externally compressed air. AFR’s ranged from 57 to 239 compared to the design range of 23–92 for the engine, including unusually high AFR’s at full-load operation, not previously reported for conventional combustion. As expected, larger accumulation mode particles were lowered (up to 15 times) for FI operation. However, the smaller nucleation mode nanoparticles increased up to 15 times. Accumulation mode particles stopped decreasing above an AFR threshold while nucleation particles continuously increased. In-cylinder combustion analysis showed a slightly smaller ignition delay and higher burn rate for FI cases relative to NA operation. Much higher peak cylinder pressures were accompanied by much lower combustion and exhaust gas temperatures (EGT), due to higher in-cylinder mass during FI operation. Peak nucleation mode emissions were shown to be negatively correlated to EGT for all the data, collapsing on a single curve. This is consistent with some other studies reporting increased nucleation mode emissions (and higher accumulation mode particles) with decreased load, lower speed, lower EGR, advanced combustion phasing, and higher injection pressure, all of which reduce EGT. The nucleation-accumulation trade-off has been explained by the ‘adsorption hypothesis’ by some investigators. In the current work, an alternative/supplemental argument has been made for the possibility that lower cylinder temperatures during the late-burning phase (correlated to lower EGT) phase hampers oxidation of nucleation mode particles and increases nucleation mode emissions.

Working To Be Seen And Heard, Camila Sánchez-González

University Libraries Blog Archive

Camila Sánchez-González '23 goes through the University Archives and finds women's voices in the history of UD. In her research through student-run publications and other sources, she learns just how women were seen and heard during the 1960s.

Designing For Best Use Of The Downtown I-345 Corridor In Dallas, Tx: Stakeholder Perspectives, Matthew Thornton

Landscape Architecture Masters & Design Theses - Archive

What is a city? It’s more than a location where many people live and work. It is a conglomeration of shared experience over generations. One generation informs the next, which informs how each subsequent generation adds to the development of their shared home. This is what gives each city its own unique form, character, and identity. But what happens if a city repeatedly outgrows itself, disconnects its communities, and demolishes the physical memory of its own cultural history? Dallas, Texas is one such city confronting these issues and is perceived as one without significant place memory or culture (if not …

Towards Parallel Intelligence Of City 5.0: An Ontological Perspective Of Digital Twin Ecosystem, Hafiz Muhammad Arfan Qalamkar

Theses

Through the construction of a city-level digital twin (CDT) prototype that integrates data, models, and insights from many disciplines and sectors of the UAE, the project investigates the potential benefits of dynamic knowledge graph and data-driven models to design national level digital twin. Three work packages are included in the study: Developing a digital twin ontological depiction for simulating national digital twin for UAE and testing Digital scenarios, engaging with local authorities like ADDA and Digital Dubai, modelling experts, and other key stakeholders to collect feedback on the application and future development of DT; and developing a digital twin prototype …

Growing High School Stem Outreach Program Led By Graduate Student, Abigail Martin

University of Mississippi News

Inspiring passion for science-related fields in the next generation of scholars

Managing Deviant Behaviours Among Undergraduate Student Users Of Federal University Libraries In Southwest, Nigeria, Osagie Oseghale, Christopher Olumuyiwa Ola

Library Philosophy and Practice (e-journal)

Abstract

This study investigated the causes, prevalence and effect of deviant behaviours among undergraduate student users of Federal university libraries in Southwest, Nigeria. Using a descriptive survey research design, 108 librarians from the six Federal university libraries participated in the study. A self-devised structured questionnaire was used for data collection. Data collected were analysed and results presented using table of descriptive statistics, frequencies and percentages. The study revealed that deviant behaviours are opportunistic crimes caused by situational factors including a pervasive view that there is little or no danger of being caught, Porous library security, Poor illumination, lack of vigilance …

Sociology Between The Gaps Volume 7 (2022)

Sociology Between the Gaps: Forgotten and Neglected Topics

No abstract provided.

Board Of Directors Meeting Minutes (December 12, 2022), Dmacc

Board of Directors Meeting Minutes

This file contains the minutes from the Des Moines Area Community College Board meeting held on December 12, 2022.

Explaining Suharto's Rise And Fall: International And Domestic Variables, Julia Batanghari

Undergraduate Honors Theses

For three decades (1968-1998), Indonesia was led by President Suharto, whose authoritarian military regime is remembered for its corruption and brutality. This paper offers an analysis of Suharto’s rule through the lens of two events: his 1965 purge of local ‘communists’ and the riots of May 1998. Drawing comparisons between the two, I delve into systemic causes by considering the influence of domestic and international variables. Exploring links between intergroup accommodation and democracy reveals that Suharto’s lack of ethnic, socioeconomic, and religious inclusivity paved the way not only for the anti-Chinese sentiment which pervaded Indonesian society during his presidency, but …

Mussel Squeeze: Dissolved Oxygen And Temperature Can “Squeeze” Zebra Mussels Out Of Invaded Reservoirs, Crysta Gantz, Rich Miller, Steve Wells, Mark D. Sytsma, Angela Strecker

Environmental Science and Management Faculty Publications and Presentations

Zebra mussels (Dreissena polymorpha) are an aquatic invasive species that cause extensive economic and ecological impacts and are a management priority in areas outside of their native range. Survivorship and distribution of zebra mussels within a waterbody are thought to be influenced by temperature and dissolved oxygen conditions, but detailed information to confirm the importance of these environmental controls is necessary to inform management efforts. We measured planktonic zebra mussel veliger density and adult survivorship in San Justo Reservoir in central California to determine distribution and timing of spawning in relation to temperature and dissolved oxygen throughout winter, spring, and …

Spatial Validation Of Agent-Based Models, Kristoffer Wikstrom, Hal T. Nelson

Public Administration Faculty Publications and Presentations

This paper adapts an existing techno–social agent-based model (ABM) in order to develop a new framework for spatially validating ABMs. The ABM simulates citizen opposition to locally unwanted land uses, using historical data from an energy infrastructure siting process in Southern California. Spatial theory, as well as the model’s design, suggest that adequate validation requires multiple tests rather than relying solely on a single test-statistic. A pattern-oriented modeling approach was employed that first mapped real and simulated citizen comments across the US Census tract. The suite of spatial tests included Global Moran’s I, complemented with bivariate correlations, as well as …

A Framework For Multi-Dimensional Assessment Of The Impacts Of Overweight Vehicle Operations And A Corridor-Level Case Study, Maria Alicia Chung Li

Lyles School of Civil Engineering Graduate Student Reports

Ground freight transportation is essential for the economy of any region. The efficient movement of goods from one location to another connects businesses with suppliers and customers, that enhances commerce and ultimately boosts the economy. The high volume of freight that has been transported on the nation’s highway network has allowed the trucking industry to provide enormous socio-economic benefits. Unfortunately, these benefits come with some costs associated with the operation of overweight (OW) trucks, such as accelerated deterioration of highway pavement and bridge assets, and passenger and freight traffic safety degradation. Thus, to manage safety risk, traffic mobility, and infrastructure …

Ohio University Faculty Senate Minutes December 12, 2022, Ohio University Faculty Senate

Faculty Senate Minutes

No abstract provided.

Icc Agenda 12-6-22, Angela Brock

Individual Course Committee (ICC)

No abstract provided.

Regional Airline Pilot Profession Post Colgan 3407, Brett Maas

Honors Theses

Colgan Air Flight 3407 was a devastating aircraft accident that resulted in the loss of 50 lives (Beresnevicius, 2019). Multiple factors played into the accident, such as pilot credentials, pilot experience, weather, and fatigue. As a result of the accident, the regional airline pilot profession was changed entirely. Changes that spurred because of the accident were both regulatory and compensatory in nature. Regulatory changes include the introduction of the Pilot Records Database (online database that stores pilot training histories), increased flight experience requirements to become a First Officer at an air carrier, and the introduction of proactive rest rules with …

Teaching Autistic Children To Independently Wash Their Hands: A Systematic Review Of Behavioral Techniques, Alexis Vazquez

Seton Hall University Dissertations and Theses (ETDs)

With COVID 19 having changed the world’s perception on daily hygiene, people are aiming to improve the rate and efficacy of their hand washing. Autistic children, having a history of challenges with daily living skills, may need support when learning the skill of hand washing. The current review discusses interventions used to teach autistic children effective hand washing and investigates if those interventions meet criteria to be considered an evidence-based practice. Six studies met the inclusion criteria and data were synthesized narratively. Given the importance of hand washing in society, more research is necessary to achieve optimal outcomes. The review …

Initial Data Generation And Dynamical Simulations Of Binary Neutron Star Systems, Tanmayee Gupte

Theses

The recent detection of gravitational waves (GWs) from a system of binary neutron stars (BNS) in coincidence with electromagnetic observations has launched a new era of multimessenger astrophysics. In light of the complementary knowledge to be gained through simultaneous observations, BNS mergers are one of the main targets for terrestrial GW interferometric detectors. These observations may prove critical in understanding the equation of state (EOS) of the nuclear matter inside the neutron star core, which is still poorly constrained given current observations. Understanding the neutron star (NS) EOS is critical for binary parameter estimation, and will hopefully aid in the …

Mitigating Coastal Erosion For Great Bay, Autumn Bedell

UNH Today Archive

No abstract provided.

Gambaran Faktor Kegagalan Laten Dan Kegagalan Aktif Pada Kecelakaan Transportasi Darat Di Indonesia Tahun 2019 – 2021, Rahma Laili Khairina, Dadan Erwandi

National Journal of Occupational Health and Safety

Road transportation accidents are the eighth leading cause of death worldwide, reaching 1.35 million people annually (WHO, 2021). Data from the NTMC Korlantas Polri for 2019-2021 shows that the number of road transportation accidents in Indonesia is above 100 thousand every year. This study identifies latent and active failure factors contributing to Indonesia's land transportation accidents to determine the causes of accidents comprehensively. This study uses secondary data with 320,084 traffic accident case reports in 2019-2021 belonging to the NTMC Korlantas Polri. The method used is qualitative by analyzing based on the Swiss Cheese Model. The results of this study …

Gabapentin Disrupts Binding Of Perlecan To The Α 2Δ1 Voltage Sensitive Calcium Channel Subunit And Impairs Skeletal Mechanosensation, Perla C Reyes Fernandez, Christian S Wright, Adrianna N Masterson, Xin Yi, Tristen V Tellman, Andrei Bonteanu, Katie Rust, Megan L Noonan, Kenneth E White, Karl J Lewis, Uma Sankar, Julia M Hum, Gregory Bix, Danielle Wu, Alexander G Robling, Rajesh Sardar, Mary C Farach-Carson, William R Thompson

Faculty, Staff and Student Publications

Our understanding of how osteocytes, the principal mechanosensors within bone, sense and perceive force remains unclear. Previous work identified "tethering elements" (TEs) spanning the pericellular space of osteocytes and transmitting mechanical information into biochemical signals. While we identified the heparan sulfate proteoglycan perlecan (PLN) as a component of these TEs, PLN must attach to the cell surface to induce biochemical responses. As voltage-sensitive calcium channels (VSCCs) are critical for bone mechanotransduction, we hypothesized that PLN binds the extracellular α2δ1 subunit of VSCCs to couple the bone matrix to the osteocyte membrane. Here, we showed co-localization of PLN and α2δ1 along …

Examining The Impact Of Covid-19 On The Education And Development Of American Students, Riley Fortin '25

Student Research

After the COVID-19 pandemic, the vast majority of American children have fallen behind on core subjects due to the ultimate ineffectiveness of remote learning. This study attempts to discover the degree to which children have fallen behind through the trends in the National Association of Educational Procurement’s two most recent testing years. A database accessed from Google has been analyzed, filtered by state and visualized in tables in order to indicate any possible trends as a result of remote learning brought on by the pandemic. By looking at data in seven different states across the country, there is a notable …

Issues In Melanoma Detection: Semisupervised Deep Learning Algorithm Development Via A Combination Of Human And Artificial Intelligence, Xinyuan Zhang, Ziqian Xie, Yang Xiang, Imran Baig, Mena Kozman, Carly Stender, Luca Giancardo, Cui Tao

Faculty, Staff and Student Publications

BACKGROUND: Automatic skin lesion recognition has shown to be effective in increasing access to reliable dermatology evaluation; however, most existing algorithms rely solely on images. Many diagnostic rules, including the 3-point checklist, are not considered by artificial intelligence algorithms, which comprise human knowledge and reflect the diagnosis process of human experts.

OBJECTIVE: In this paper, we aimed to develop a semisupervised model that can not only integrate the dermoscopic features and scoring rule from the 3-point checklist but also automate the feature-annotation process.

METHODS: We first trained the semisupervised model on a small, annotated data set with disease and dermoscopic …

Evaluation Of Simvastatin As A Disease-Modifying Treatment For Patients With Parkinson Disease: A Randomized Clinical Trial, Kara N. Stevens, Siobhan Creanor, Alison Jeffery, Alan Whone, John Zajicek, Andy Foggo, Ben Jones, Rebecca Chapman, Laura Cocking, Jonny Wilks, Doug Webb, Camille Carroll

Peninsula Medical School

Importance: Current treatments manage symptoms of Parkinson disease (PD), but no known treatment slows disease progression. Preclinical and epidemiological studies support the potential use of statins as disease-modifying therapy. Objective: To determine whether simvastatin has potential as a disease-modifying treatment for patients with moderate PD. Design, Setting, and Participants: This randomized clinical trial, a double-blind, parallel-group, placebo-controlled futility trial, was conducted between March 2016 and May 2020 within 23 National Health Service Trusts in England. Participants aged 40 to 90 years with a diagnosis of idiopathic PD, with a modified Hoehn and Yahr stage of 3.0 or less while taking …

A Path To Translation: How 3d Patient Tumor Avatars Enable Next Generation Precision Oncology, Shree Bose, Margarida Barroso, Milan G Chheda, Hans Clevers, Elena Elez, Salma Kaochar, Scott E Kopetz, Xiao-Nan Li, Funda Meric-Bernstam, Clifford A Meyer, Haiwei Mou, Kristen M Naegle, Martin F Pera, Zinaida Perova, Katerina A Politi, Benjamin J Raphael, Paul Robson, Rosalie C Sears, Josep Tabernero, David A Tuveson, Alana L Welm, Bryan E Welm, Christopher D Willey, Konstantin Salnikow, Jeffrey H Chuang, Xiling Shen

Faculty, Staff and Students Publications

3D patient tumor avatars (3D-PTAs) hold promise for next-generation precision medicine. Here, we describe the benefits and challenges of 3D-PTA technologies and necessary future steps to realize their potential for clinical decision making. 3D-PTAs require standardization criteria and prospective trials to establish clinical benefits. Innovative trial designs that combine omics and 3D-PTA readouts may lead to more accurate clinical predictors, and an integrated platform that combines diagnostic and therapeutic development will accelerate new treatments for patients with refractory disease.

Tenotomy-Induced Muscle Atrophy Is Sex-Specific And Independent Of Nfκb, Gretchen A Meyer, Stavros Thomopoulos, Yousef Abu-Amer, Karen C Shen

2020-Current year OA Pubs

The nuclear factor-κB (NFκB) pathway is a major thoroughfare for skeletal muscle atrophy and is driven by diverse stimuli. Targeted inhibition of NFκB through its canonical mediator IKKβ effectively mitigates loss of muscle mass across many conditions, from denervation to unloading to cancer. In this study, we used gain- and loss-of-function mouse models to examine the role of NFκB in muscle atrophy following rotator cuff tenotomy - a model of chronic rotator cuff tear. IKKβ was knocked down or constitutively activated in muscle-specific inducible transgenic mice to elicit a twofold gain or loss of NFκB signaling. Surprisingly, neither knockdown of …