Digital Commons Network^™

Seattle's Indoor Ski Tournents Of 1939 & 1940, John W. Lundin

Works by Local Authors

No abstract provided.

December 12, 2023 Ereporter, University Of Alabama At Birmingham

eReporter (campus newsletter)

No abstract provided.

Electroencephalographic Abnormalities In Children With Type 1 Diabetes Mellitus: A Prospective Study, Ruken Yildirim, Ceren Günbey

Turkish Journal of Medical Sciences

Background/aim: The aim herein was to investigate epileptiform discharges on electroencephalogram (EEG), their correlation with glutamic acid decarboxylase 65 autoantibody (GAD-ab) in newly diagnosed pediatric type 1 diabetes mellitus (T1DM) patients and interpret their medium-term utility in predicting epilepsy. Materials and methods: Children presenting with T1DM between July 2018 and December 2019 were included in this prospective longitudinal study. Patients with a history of head injury, chronic illness, neurological disorder, seizure, autism, or encephalopathy were excluded. EEGs were obtained within the first 7 days of diagnosis and later reviewed by a pediatric neurologist. All of the children were clinically followed-up …

Relative Effectiveness Of A Radionuclide (210pb), Surface Elevation Table (Set), And Lidar At Monitoring Mangrove Forest Surface Elevation Change, Richard Mackenzie, Ken Krauss, Nicole Cormier, Eugene Eperiam, Jan Van Aardt, Ali Rouzbeh-Kargar, Jessica Grow, Val Klump

Articles

Sea-level rise (SLR) is one of the greatest future threats to mangrove forests. Mangroves have kept up with or paced past SLR by maintaining their forest floor elevation relative to sea level through root growth, sedimentation, and peat development. Monitoring surface elevation change (SEC) or accretion rates allows us to understand mangrove response to SLR and prioritizes resilient ecosystems for conservation or vulnerable ecosystems for restoration. We compared three methods to measure SEC and accretion in mangrove forests: 210Pb, surface elevation tables (SETs), and a terrestrial light detection and ranging system (compact biomass LiDAR—CBL). Lead-210 accretion rates were not significantly …

Enhancing Efficiency And Sustainability: Retrofitting Fluorescent Lights To Leds, Khalifa Alshaiba

Theses

This research work emphasizes the urgent need to implement energy-efficient lighting technologies, particularly the retrofit of fluorescent lights with LED alternatives, in order to reduce energy consumption and greenhouse gas emissions. In addition to that maintaining operational safety and sustainability, improving energy efficiency is essential in Dubai's industries, which are major consumers of electricity and economic drivers. The project's goal is to retrofit energy-efficient LED lighting into a well-known packaging company's current fluorescent lighting systems. In doing so, the project hopes to improve illumination quality and minimize maintenance needs while lowering energy consumption, operating expenses, and environmental impact. The goals …

Effect Of Humanine On The Notch Signaling Pathway In Myocardial Infarction, Eli̇f Onat, Ebru Önalan, Berna Özdem, Merve Kavak Balgeti̇r, Tuncay Kuloğlu

Turkish Journal of Medical Sciences

Background/aim: By applying humanin (HN) before myocardial infarction (MI), its protection in myocardial injury and the possible roles of its cellular mechanism in the Notch pathway were investigated. Materials and methods: The study was carried out at Fırat University Experimental Research Center (12/24/2018-12/23/2019). Spraque-Dawley rats were divided into 10 groups: I (control) (n = 6), II (HN 6 h) (n = 6), III (HN 24 h) (n = 6), IV (HN day 7) (n = 6), V (MI 6 h) (n = 7), VI (MI 24 h) (n = 7), VII (MI day 7) (n = 7), VIII (MI+HN 6 …

Impact Of Methylene Blue On Enhancing The Hydrocarbon Potential Of Early Cambrian Khewra Sandstone Formation From The Potwar Basin, Pakistan, Muhammad Ali, Abdul M. Shar, Nurudeen Yekeen, Hussein Abid, Muhammad S. Kamal, Hussein Hoteit

Research outputs 2022 to 2026

Significant amounts of hydrocarbon resources are left behind after primary and secondary recovery processes, necessitating the application of enhanced oil recovery (EOR) techniques for improving the recovery of trapped oil from subsurface formations. In this respect, the wettability of the rock is crucial in assessing the recovery and sweep efficiency of trapped oil. The subsurface reservoirs are inherently contaminated with organic acids, which renders them hydrophobic. Recent research has revealed the significant impacts of nanofluids, surfactants, and methyl orange on altering the wettability of organic-acid-contaminated subsurface formations into the water-wet state. This suggests that the toxic dye methylene blue (MB), …

Void Formation And Mortality During Liquid Composite Molding, Jared Michael Turner

Theses and Dissertations

Within the high-performance composite manufacturing industry, there exists a need to improve the reliability of LCM (Liquid Composite Molding) manufacturing processes in producing composite parts that better approach the quality and consistency of pre-impregnated composite tapes that are cured in autoclaves with cost being a driving factor of this need. One obstacle to that end is the phenomenon of void formation during the LCM infusion processes. The formation of these voids through different mechanisms leads to composite parts with lower mechanical properties and consistency than their pre-impregnated autoclave cure counterparts. The objective of this research is to investigate the different …

In Vitro Observation Of Optical Changes In Whole Blood Due To Injection Of Glucose Solution, James Gordon Harkness

Theses and Dissertations

Significance: While the optical properties of blood have been extensively studied, the influence of glucose concentration on blood optics remains unquantified. This is information which could be used to develop a noninvasive blood glucose monitor. Aim: This in vitro study investigated the optics of blood. Time-dependent effects and various methods of introducing glucose into blood samples were examined. The study aimed to quantify how alterations in glucose levels impacted blood optics across 14 distinct NIR wavelengths. Approach: Blood in a cuvette was exposed to light, and the reflected and transmitted light was captured in integrating spheres. 14 distinct wavelengths from …

The State Of Active Blended Learning In Construction Education: Reviewing Research And Current Perspectives, Shandon Miles Gubler

Theses and Dissertations

STEM educators have shown a particular interest in active blended learning. Construction management education, a discipline within STEM education, has naturally considered blended instruction to engage students in the learning process. Documented efforts of construction management educators implementing blended instruction have mostly been recorded in conference proceedings. These recorded efforts often take the form of anecdotal case studies—a current review of how construction management faculty are implementing blended instruction and active learning in their blended courses was not found. In this study, we reviewed the literature for active blended instruction in construction management education. We surveyed construction management faculty about …

12.04.2023 Orsp Connect, Liz Williamson

ORED Newsletter

Week of December 4, 2023

Radicalisation And Extremism On Social Media: What Steps Can Be Taken?, Emeka Williams Etumnu, Oluchi I. Williams-Etumnu

Library Philosophy and Practice (e-journal)

Unarguably, the social media has brought the world together in an online space and as a result of this, extremist groups utilise the social media to radicalise people especially the youths who are vulnerable and fancy their ideology towards their cause. The paper was underpinned on public sphere theory and the desk research method was employed in the course of the study. It was revealed that social media plays a tremendous role towards radicalisation and extremism. The need for digital literacy, where rules can be made to assist individuals of all ages in developing critical thinking skills and building resilience …

Robotic Arm Controlling Strategy For Fiber-Optic Assessment Of Myofascial Pain, Yuyao Li

Electrical and Systems Engineering Undergraduate Student Research

Myofascial pain is a prevalent condition characterized by chronic musculoskeletal discomfort, often requiring precise diagnostic tools for effective assessment. This project focuses on developing an advanced robotic arm control system to facilitate fiber-optic evaluation of myofascial pain. By leveraging Python-based programming, the robotic arm’s functionality was significantly enhanced, transitioning from single-joint control via a proprietary app to parallel joint control through keyboard commands. This advancement streamlines operation, reducing assessment time and improving workflow efficiency.

Key contributions include establishing a robust communication protocol between the robotic arm and external hardware, optimizing system performance through collaboration with Dobot Factory technical support, and …

Quantifying Non-Muscle Myosin 2 Filament Dynamics, Melissa Ann Quintanilla

Dissertations

Non-muscle myosin 2 is a motor protein that, when assembled into filaments, works on the actin cytoskeleton to produce contractile forces within cells. This type of myosin dynamically assembles within cells to exert forces necessary for a wide variety of functions including cell division, migration, and multicellular movement. The ability to dynamically assemble contractile networks, and the ability to control the assembly and placement of these myosin filaments in both space and time, is therefore required throughout cell physiology. We used a suite of dynamic, quantitative imaging approaches to identify deterministic factors that drive myosin filament appearance and amplification as …

Evaluating The Efficacy Of A Thermoresponsive Hydrogel For Delivering Anti-Collagen Antibodies To Reduce Posttraumatic Scarring In Orthopedic Tissues., Andrzej Steplewski, Jolanta Fertala, Lan Cheng, Mark Wang, Michael Rivlin, Pedro K Beredjiklian, Andrzej Fertala

Department of Orthopaedic Surgery Faculty Papers

Excessive posttraumatic scarring in orthopedic tissues, such as joint capsules, ligaments, tendons, muscles, and peripheral nerves, presents a significant medical problem, resulting in pain, restricted joint mobility, and impaired musculoskeletal function. Current treatments for excessive scarring are often ineffective and require the surgical removal of fibrotic tissue, which can aggravate the problem. The primary component of orthopedic scars is collagen I-rich fibrils. Our research team has developed a monoclonal anti-collagen antibody (ACA) that alleviates posttraumatic scarring by inhibiting collagen fibril formation. We previously established the safety and efficacy of ACA in a rabbit-based arthrofibrosis model. In this study, we evaluate …

Partake: A Product Design Aimed At Helping Individuals Master The Art Of Cooking, Zikai Meng

Theses

Many individuals aspire to become skilled cooks and create delectable dishes on their own. However, following recipes or tutorials can be challenging for many. This is why I developed Partake - an interactive cooking learning platform designed to provide a solution. With this app, users can learn the art of cooking in a personalized and engaging way by adjusting ingredient quantities and receiving clear instruction on culinary techniques. Partake aims to enhance the likelihood of success for those embarking on their journey to master cooking skills.

Hybrid Test-Smell Based Approach For Prediction Of Flaky Tests, Saurabh Bodke

Theses

Regression testing is an essential component in software development, aimed at verifying that recent code changes do not negatively impact existing functionalities. A prevalent challenge in this area is the occurrence of flaky tests, which exhibit inconsistent outcomes—passing or failing without any code alterations. Such tests erode the reliability of automated testing frameworks, leading to increased debugging efforts and diminished confidence in software stability. This research addresses the challenge of flaky tests by exploring machine learning and prediction models, specifically focusing on test smells and four principal root causes of flakiness: Async Wait, Concurrency, Test Order Dependency, and Resource Leak. …

Improving The Test Smell-Based Detection Of Flaky Tests, Shubham Kumar Karum

Theses

Regression testing, a critical process in software development, ensures that the recent code changes have not adversely affected existing functionality. A significant challenge in this domain is the existence of flaky tests—tests that inconsistently pass or fail without any changes to the code. These flaky tests undermine the reliability of automated testing and can lead to increased debugging and decreased confidence in software stability. To tackle the issue of flaky tests, there exists approaches that make use of machine learning and prediction models. However, approaches that rely on analyzing test case vocabulary typically face challenges like higher costs to run …

The Experience Of Teaching Disengaged Students In Stem: Examined Through The Lens Of The Abc Engagement Framework, William Randall Hjorth

Theses and Dissertations

Young people today are increasingly disengaged from their education. Studies indicate that of all school subjects, American students struggle to engage in STEM subjects more than others. For decades, we have known that student engagement/disengagement impacts teachers. Researchers have also claimed that engagement/disengagement can be described as a construct made up of affective, behavioral, and cognitive dimensions (ABC). However, we do not understand how teachers experience student disengagement in these three areas. At a crucial time in education, investigation into the experiences of teachers with disengaged students is needed to uncover insights which may help us understand how teachers interpret …

Unh Celebrates Students And Alumni At Annual Social Venture Innovation Challenge, Unh Communications And Public Affairs

UNH Today Archive

No abstract provided.

Strategies Small Business Owners In North Carolina Use To Sustain Their Business, Curtis Delbert Mccullough

Walden Dissertations and Doctoral Studies

No abstract provided.

Achieving Organizational Sustainability Through Gender-Diverse Strategies For Builder Leaders’ Succession Planning, Lisa Hawkins-Saleemi

Walden Dissertations and Doctoral Studies

No abstract provided.

Hubungan Tingkat Berat Jenis Urin Dengan Keluhan Kesehatan Akibat Pajanan Panas Pada Pekerja Konstruksi Depo Lrt, Muhammad Syafiq Nafis, Doni Hikmat Hikmat Ramdhan

National Journal of Occupational Health and Safety

Background: Construction workers in Indonesia are among vulnerable workers of the negative impact of heat hazard from the work environment. Past research has found that more than 80% of construction workers experienced dehydration and 100% construction workers have experienced heat-related symptoms/illnesses. Objective: The purpose of this study is to analyze the correlation between dehydration (based on urine specific gravity) and heat-related symptoms/illnesses in depo Light-Rail Transit (LRT) construction workers. Methods: This study used a cross-sectional method from secondary data of work environment heat level measurement, workers’ questionnaire, and workers’ urine specific gravity in depo LRT construction 2021. Results : There …

Analisis Faktor Risiko Gangguan Otot Rangka Akibat Kerja Pada Pekerja Perkantoran Di Instansi X Tahun 2023, Alvina Winners Putri, Indri Hapsari Hapsari Susilowati

National Journal of Occupational Health and Safety

An uncomfortable posture when doing work for a long duration can cause work-related musculoskeletal disorders. The purpose of this study was to determine the risk factors associated with the occurrence of symptoms of work-related musculoskeletal disorders in office workers at Institution X in 2023. This study used a cross-sectional design and the occupational posture assessment Rapid Office Strain Assessment (ROSA) method then to assess complaints of musculoskeletal disorders as a whole subjectively using the NBM (Nordic Body Map). The results showed that the level of risk of complaints of musculoskeletal disorders due to work at the intermediate level requires further …

Evaluation Of The Cytotoxic Effect Of Titanium Dioxide Nanoparticles In Human Embryonic Lung Cells, Olkan Afşar, Çağatay Oltulu

Turkish Journal of Medical Sciences

Background/aim: Titanium dioxide nanoparticles are widely used in a variety of products, including sunscreens, paints, and ceramics. However, their increasing use has raised concerns about their potential health risks. Titanium dioxide nanoparticles have been shown to have the ability to enter the bloodstream and accumulate in various tissues, reaching the fetus via the placenta. The aim of this study was to investigate the cytotoxic effects of titanium dioxide nanoparticles on a human embryonic lung cell line (HEL 299/An1) and the formation of oxidative DNA damage. Materials and methods: The cytotoxic effects of brookite-based titanium dioxide nanoparticles (<100 nm) were assessed using the 3-(4,5-dimethyldiazol-2-yl)-2,5 diphenyl tetrazolium bromide (MTT) assay for 24 and 48 h. Cell titanium levels were determined using inductively coupled plasma mass spectrometry. Oxidative DNA damage was assessed by measuring the levels of 8-hydroxy-2- deoxyguanosine (8-OHdG) as a biomarker. Results: Titanium dioxide nanoparticles caused dose-dependent cytotoxicity in HEL 299/An1 cells. The IC50 values were 25.93 μM and 0.054 μM after 24 h and 48 h of exposure, respectively. Cell titanium levels were found to be 25,967 ppb after 24 h and 210,353 ppb after 48 h (p < 0.01). 8-OHdG was detected at 32.96 ng/mL after 24 h of exposure and 17.89 ng/mL after 48 h of exposure. Conclusion: In our study, it was shown that titanium nanoparticles caused dose-dependent cytotoxicity and oxidative DNA damage in human embryonic lung cells. The nanoparticles also accumulated in cells and were taken up in higher amounts after 48 h of exposure. These findings suggest that titanium dioxide nanoparticles may pose a health risk, especially for pregnant women who may not be aware of their pregnancy. Therefore, it is important to take preventive measures to reduce exposure to these nanoparticles.

Assessment Of Changes In Macular Structural Retinal Layers In Patients With Pathological Myopia, Mehmet Çitirik, Kami̇l Yavuzer, Fatma Bağci

Turkish Journal of Medical Sciences

Background/aim: This study aimed to examine changes in the thickness of individual macular retinal layers in eyes with pathological myopia (PM) and to compare the thickness of each retinal layer between the PM and control groups to gain insights into retinal perfusion. Materials and methods: The study included 51 eyes in the PM group and 51 eyes in the control group. Optical coherence tomography (OCT) was used to measure the thickness of each retinal layer in the central fovea, parafoveal, and perifoveal regions. Optical coherence tomography angiography (OCT-A) was used to evaluate the retinal capillary density. Results: In the PM …

Development Of An Optical Test Bed For The Fabrication And Characterisation Of An Analog Holographic Wavefront Sensor, Emma Branigan, Andreas Zepp, Suzanne Martin, Matthew Sheehan, Szymon Gladysz, Kevin Murphy

Conference Papers

A new holographic recording setup has been developed for the fabrication of single- and multi-mode photopolymer-based analog holographic wavefront sensors. A second setup has been built and used to characterise the sensor at several wavelengths.

Commercial Adsorbents For Co2 Removal For Biogas Upgradation: An Experimental Study, Aakriti Bagla

McKelvey School of Engineering Graduate Student Theses & Dissertations

No abstract provided.

How Are Oregon's Rural Indigenous Communities Overcoming Water Access Issues?, Tyren John Thompson

Dissertations and Theses

This study investigates how water insecurity affects Indigenous communities in Grand Ronde, Warm Springs, and Umatilla, Oregon, through loss of clean drinking water, access to culturally significant foods, and exposure to pollution. Each community offers innovative solutions drawing on their Indigenous knowledge to overcome water supply challenges. Communities with more resources are better equipped to cope with water insecurity and environmental degradation.

Oncogenic Kras Drives Lipofibrogenesis To Promote Angiogenesis And Colon Cancer Progression, Wen-Hao Hsu, Kyle A Labella, Yiyun Lin, Ping Xu, Rumi Lee, Cheng-En Hsieh, Lei Yang, Ashley Zhou, Jonathan M Blecher, Chang-Jiun Wu, Kangyu Lin, Xiaoying Shang, Shan Jiang, Denise J Spring, Yan Xia, Peiwen Chen, John Paul Shen, Scott Kopetz, Ronald A Depinho

Faculty, Staff and Student Publications

Oncogenic KRAS (KRAS*) contributes to many cancer hallmarks. In colorectal cancer, KRAS* suppresses antitumor immunity to promote tumor invasion and metastasis. Here, we uncovered that KRAS* transforms the phenotype of carcinoma-associated fibroblasts (CAF) into lipid-laden CAFs, promoting angiogenesis and tumor progression. Mechanistically, KRAS* activates the transcription factor CP2 (TFCP2) that upregulates the expression of the proadipogenic factors BMP4 and WNT5B, triggering the transformation of CAFs into lipid-rich CAFs. These lipid-rich CAFs, in turn, produce VEGFA to spur angiogenesis. In KRAS*-driven colorectal cancer mouse models, genetic or pharmacologic neutralization of TFCP2 reduced lipid-rich CAFs, lessened tumor angiogenesis, and improved overall survival. …