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2020 Abstracts

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Optimization Of Tuberculosis Biomarker Detection In Breath Condensate Via Engineered Electroactive Solution

December 30, 0020 12:00 AM
Swomitra, Mohanty; Willis, Christina ; Larson, Shaylee (University of Utah)
Faculty Advisor: Mohanty, Swomitra (Engineering, Chemical Engineering)

The World Health Organization has cited tuberculosis (TB) as a global health emergency. As this is a disease that mainly affects those in developing countries, it is important to provide a rapid and affordable means of diagnosis. Emerging work has shown breath biopsy to be a promising resource for diagnosing a variety of diseases, but is particularly promising for TB, as it negates the need for sputum collection that can cause many problems in young or ill patients and can provide results at point of care.

The breath of a patient diagnosed with TB contain volatile organic biomarkers (VOBs) that are given off by the bacteria that cause the disease. Detection of VOBs with via metal-functionalized titanium dioxide sensors has been successful in very sick patients, however it is limited in its ability to detect low analyte levels and has unknown specificity in a complex human breath matrix. Preliminary results indicate that the use of an engineered electroactive solution (EAS), a liquid-phase complex which utilizes a functional metal in solution, can improve the current sensing platform by simplifying the electrode configuration and allowing the use of more complex electrochemical techniques (in this case square wave voltammetry (SWV)). Because the margins of detection can be quite small, successful optimization of SWV parameters is vital. The proposed project will explore a means of optimizing these parameters by collecting a variety of sample data in order to determine how the electrochemical activity of the EAS is altered when biomarkers are introduced.
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Optimization of Strain Gauge Placement on Lower Back for Maximum Resolution of Spine Biomechanics

December 30, 0020 12:00 AM
Gibbons, Andrew; Clingo, Kelly; Emmett, Darian; Fullwood, David; Bowden, Anton (Brigham Young University)
Faculty Advisor: Fullwood, David (Brigham Young University, Ira A. Fulton College of Engineering; Engineering and Technology); Bowden, Anton (Brigham Young University, Ira A. Fulton College of Engineering; Engineering and Technology)

Spine dysfunctions such as stenosis and herniated discs have traditionally been diagnosed using X-ray or MRI imaging techniques; but these methods capture a snapshot of the problem, without revealing the positional dependence of the causes and effects. In order to provide a richer dataset to physicians, an NIH-funded project has begun with the aim of tracking details of spinal motion for people with healthy and symptomatic backs. Novel nanocomposite strain gauges will be used to capture skin deformation during typical back motion, and correlate these data with back motions that are known to reveal chronic subcutaneous trauma. This paper focuses on the optimal placement of strain gauges for maximum resolution of the underlying biomechanics.

An array of reflective markers was placed on a healthy individual's lower back between the L5 and T10 vertebrae. A QUALISYS motion capture lab was then used to determine the coordinates of these markers during flexion, rotation, flexion with rotation, and side bending. These motions were repeated 3 times for 10 seconds. The distances between markers were calculated for each motion and the strain values between resting and flexed positions were determined. Initial validation was performed by comparing a maximum tensile strain of 0.54, between the L5 and L1 vertebrae in flexion, with a previously reported value of 0.5 in the literature.

This paper will report the development of an optimal arrangement of sensors for resolving the relevant biomechanics of the spine, based upon a detailed analysis of the optical marker results. Future work will utilize these results to develop a skin mounted, wearable sensor array that can measure the real-time kinematics of the spine and compare them with a database of healthy and low back pain subjects using a machine-learning paradigm. We hope to use the system to identify mechanical sources of low-back pain.
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Novel Methods for Composites Recycling via Pyrolysis

December 30, 0020 12:00 AM
Jacobs, Matt (Brigham Young University)
Faculty Advisor: George, Andy (Engineering, School of Technology); Miles, Mike (Engineering, School of Technology)

Composites are unique materials in many respects. When fabric woven from carbon fibers is joined with a thermoset resin in a controlled environment, it results in a very strong material. One aspect of this construction that provides great strength lies in the crosslinked chains of plastic polymers, which form strong bonds as the resin cures. It's a two-edged sword, though. Although the resin and the composite are quite strong together, they are very difficult to pull apart once they're formed, in order to be able to use again in the future. As such, composite structures formed with industry-standard thermoset resins have a single-use lifespan. The cheapest thing to do to dispose of them is to simply throw them away. However, by isolating the dry fibers by burning off the resin (a process called pyrolysis), the fibers are able to be processed again in useful ways — they are reclaimed. My research focuses on pyrolysis and ways to optimize its process. I aim to showcase its environmentally-friendly capabilities through making new composite structures with fibers reclaimed via pyrolysis to lessen landfill waste.

For the experimental phase of the research, a roll of unprocessed carbon fiber material will be selected for producing 4 test groups:
Virgin-sized carbon fibers
Fibers that have undergone pyrolysis
Fibers infused to part and reclaimed with pyrolysis, oxygen-free environment
Fibers infused to part and reclaimed with pyrolysis, ambient air environment

Fiber samples will then be processes into 3mm length fibers. Fibers will then be introduced to Matrix at TBD% Fiber volume content, following which, dog bones will be molded from samples for tensile testing. Dog bones will then be tensile tested and analyzed at fracture point.

Response variables involved include:
Oxygen vs deoxygenated atmosphere (during pyrolysis),
Bath vs spray vs no application (method of sizing).
Control variables include:
Fiber & Sizing,
Fiber resin ratio,
Fiber Length,
Pyrolysis Time & Temp.

Post-pyrolysis fibers will then be chopped, blended with plastic (polymer TBD) and extruded, cut into pellets, and injection molded into dog-bones for tensile testing. The resulting mechanical properties of the carbon fiber reinforced plastic compared with standard injection molding polymers as well as fully-cured composite.

Although uncertainties exist in the viability of sizing application and surface treatment for composites recycling, building upon previous work in pyrolysis and utilizing the unique resources available at BYU (composites lab, ready access to aerospace-grade fibers, industry standard processing equipment, scanning electron microscopes, etc.), the work's importance and potential for contributions to the field are clear.
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Principles of Tremor Propagation from Neurological Activity to Joint Displacement Discovered from Upper Limb Simulation

December 30, 0020 12:00 AM
Baker, Spencer; Charles, Steven (Brigham Young University)
Faculty Advisor: Charles, Steven (Ira A. Fulton College of Engineering, Mechanical Engineering)

Essential tremor is one of the most common movement disorders and affects millions nationwide. Its debilitating effects and lack of satisfactory treatments accentuates the need for new tremor-suppressing methods. Alternative treatments are possible but would be more effective if tremor propagation from neurological activity to joint movement was better understood. The purpose of this research was to further develop previous investigations and discover the effects deep upper limb muscles on tremor propagation.
A model of the upper limb was developed to simulate tremor propagation from neural drive to muscle force, joint torque, and degree of freedom movement. An analysis of the model revealed four tremor propagation principles. (1) Musculoskeletal dynamics spread neural drive to multiple outputs, act as a low-pass filter in the tremor bandwidth, and cause a phase shift between muscle activity and joint movement. (2) Tremor spreads primarily due to inertia and secondarily due to moment arm geometry. (3) Tremor spreads narrowly. (4) The degree of freedom most affected by the tremor is wrist flexion-extension.
These conclusions provide new information regarding the propagation of tremor from superficial and deep upper-limb muscles, lay the foundation for determining the muscular source of tremor, and will assist in future tremor treatments.
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The Effects of Housing on Student Persistence

December 30, 0020 12:00 AM
Colver, Mitchell; Hagman, Amanda (Utah State University)
Faculty Advisor: Colver, Mitchell; Hagman, Amanda

Making the choice of where to live while in college is frequently acknowledged as one of the most important decisions an undergraduate student makes. Housing decisions influence students' access to campus resources and social integration, elements thought to be key indicators of their progression towards graduation. Interestingly, however, the association between living on-campus and persistence has not been considered thoroughly in the literature. While many studies leverage survey data and retention rates to make direct comparisons between on-campus and off-campus groups, most are unable to account for self-selection bias, i.e. that students who live on-campus may be qualitatively different from students who chose to live off-campus. The present study overcame this challenge by utilizing a matching technique called Prediction-based Propensity Score Matching (PPSM). Using this theoretically-driven and methodologically robust technique, researchers were able to account for self-selection bias and estimate the impact of on-campus living on student persistence. After matching, researchers estimated that students living on-campus experience a 1.19% lift (CI: 0.55% to 1.83%) in persistence. In other words, the model suggests that 46 students (CI: 21 to 71) remain enrolled at the institution simply because they live on-campus. This conclusion indicates that living in university housing is not only important because it provides students with campus proximity and social activities, but ultimately because it helps them persist towards graduation.
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Examining the Influence of Science-Infused Literacy Instruction on Reading Motivation and Quality of Informational Text

December 30, 0020 12:00 AM
Judd, Emma J.; Clark, Sarah K. (Brigham Young University)
Faculty Advisor: Clark, Sarah (Education, Teacher Education)

The study examined the integration of science into literacy instruction for the early grades. The study specifically explored how science-infused literacy instruction influenced the quality of compare and contrast science informational text produced by second graders, compared to literacy instruction alone. Additionally, the motivation of the students to read was examined in connection to the quality of the informational text they produced. The participants were second-graders (N = 72) between the ages of 7 – 9 and were enrolled in the first quarter of the school year at a Title 1 school. Seventy-three percent of these students were White, 22% were Hispanic, 2% were Asian, and 1% were Black, with 63% of the students eligible for free or reduced lunch. The treatment group (N = 35) received science-infused literacy instruction and the control group (N = 37) received their regular literacy instruction. Two instruments for measurement were used: a motivation survey which measured the students’ motivation to read, and a weighted writing rubric with an emphasis on signal words, content-specific vocabulary words, and word count, which was used to score the informational text writing samples produced by the students. The students took the reading motivation survey and answered the same informational text writing prompt before and after the instruction. The instruction for compare and contrast writing took place over the course of a four-week unit, and consisted of three 30-minute lessons weekly. The research was designed as quasi-experimental using a paired samples t-test with follow-up effect size measures. The results demonstrate that students in the treatment group produced significantly higher reading motivation scores but wrote lower-quality text, while students in the control group produced lower motivation scores but wrote higher-quality informational text. Implications from this study will be provided for educators and literacy instructional practices, and for researchers and future studies.
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Aggies Go Green: Sustainable Transportation

December 30, 0020 12:00 AM
Kaytriauna Flint, Allison Fishler, Mosese Manu, and Justus Te'i (Utah State University)
Faculty Advisor: Soyer, Mehmet (College of Humanities and Social Sciences; Sociology, Social Work and Anthropology Department)

Here at Utah State, there are many resources available for students, staff, faculty, and administration to travel to and from campus in eco-friendly ways. While there are many resources readily available, they are not well known across campus. Our initiative is to bring awareness to these hard-working groups and generous programs while incentivizing those who participate in our social media campaign where they will submit creative photos of their sustainable transportation to and from campus. Not only will it be extremely beneficial for these groups and programs across campus to get well-deserved recognition through this initiative, but it will give Aggies the greater opportunity to Go Green and travel to and from campus in an eco-friendly way!
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Understanding Personal Influencers to Support Women in STEM

December 30, 0020 12:00 AM
Joshua Luchs; Angela Kline (Brigham Young University)
Faculty Advisor; Wright, Geoff (Brigham Young University, Technology and Engineering Studies)

Despite the continual efforts of researchers and academic institutions, STEM fields such as Engineering remain male-dominated in representation. This study explores many of the positive and negative influencers affecting women in the determination to invest in engineering as an academic pathway. Whereas previous literature details many of the social barriers women encounter while pursuing male-dominated fields, this study uniquely investigates the technical focuses, academic mapping, and natural interests with potential to counteract said barriers. To achieve this, data was collected by interviews and surveys among both post-parted collegiate female engineers as well as sixth-grade males and females from local public schools. Surveys given among the younger group particularly provided insight into the framework through which developing females prefer to receive STEM instruction. The Standards for Technological Literacy serve as one of these primary frameworks assessed. By comparing the data on female interest within each Technological Literacy Standard, conclusions offered insight into the applications by which females more naturally take interest in STEM studies. These conclusions lead into the important pursuit of properly mapping STEM curriculum to actively engage and support all genders in a balanced pedagogical model.
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Coding and Mathematics Skills: Case Studies

December 30, 0020 12:00 AM
Evans, Hannah; Peterson, Rebecca (Utah State University)
Faculty Advisor: Shumway, Jessica (Emma Eccles Jones College of Education & Human Services, School of Teacher Education and Leadership); Clarke-Midura, Jody (Emma Eccles Jones College of Education & Human Services, Instructional Teachnology and Learning Sciences Department); Lee, Victor (Emma Eccles Jones College of Education & Human Services, Instruction Technology and Learning Sciences Department); Silvis, Deborah (Emma Eccles Jones College of Education & Human Services, Instruction Technology and Learning Sciences Department)

The push for computer science integration in kindergarten classrooms is a surfacing topic in public education in the United States. One approach to this is to integrate computer science with mathematics. However, there is minimal research on computer science and computational thinking as it relates to mathematics in early childhood education. In order to address this need, we are part of a larger research project that is studying the integration of computer science and mathematics in kindergarten classrooms. Specifically, we are exploring computational thinking (CT) elements that we see students engaging in (e.g., algorithmic thinking, debugging, and decomposition) while at the same time exploring mathematics skills that emerge (e.g., measurement, spatial reasoning, and pattern recognition). We study these skills and elements as we teach formal coding instruction using play-based, screen free coding robots. In this presentation, we will present early results of this integration in local kindergarten classrooms. Our main research question is: What CT and mathematics skills and strategies emerge as a result of this formal coding instruction?

Our sample consists of 16 kindergarten students. Groups of 3-4 students participated in six 30-minute coding lessons, followed by an assessment interview. Our data set is made up of video data from both the coding instruction and the assessment interviews, as well as field notes and assessment score sheets. We will present descriptive statistics regarding these assessments, as well as in-depth case studies of 2 students (one student who scored high on their post-test, and one who scored low). We will present data from the videos of their individual experiences as they engaged in formal instruction, as well as data regarding their assessments, in order to answer our research question and analyze what CT and mathematics skills and strategies emerged as a result of their formal coding instruction.
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UAV Photogrammetry Ground Truth Spacing Methodology to Accurately Model Reservoir Shorelines

December 30, 0020 12:00 AM
(Pace, Jenessa; Ence, Elodie; Kunz, Allison; Stevens, Rebecca; Kunz, Amber; Cooper, Izaak; Nelson, Alicia; Asplund, Alyssa; Stock, Julianna) (Brigham Young University)
Faculty Advisor: Williams, Gustavious (Ira A. Fulton College of Engineering and Technology, Civil and Environmental Engineering)

Photogrammetry using Unmanned Aerial Vehicles (UAV) has become more relevant to water resources issues. The models generated can be highly accurate and detailed. The use of ground truth is an integral part of ensuring the accuracy of such models. Ground truth based on GPS-obtained data of visual targets gathered in the field prior to UAV data collection are used to improve post processing accuracy. Proper spacing of ground truth is primarily dependent on the flight path of the UAV during data collection, flight height, and image resolution.
One developing task is creating models of full-pool bathymetric maps for reservoirs - using UAVs for above the waterline and sonar for below. Due to their erratic shapes, capturing the shorelines of reservoirs requires erratic flight paths. Planning ground truth spacing requires special care.
To determine proper ground truth spacing we completed a field survey at Starvation Reservoir, near Duchesne, Utah. We selected a two mile stretch along the north side of the reservoir to test various ground truth spacings. We flew the test stretch with two flights, one taking nadir photos and one with the photos taken at an angle of about 30 degrees, more normal to the shoreline. The primary placement of ground truth points was approximately 0.25 miles apart. After the data was recorded, we created models using Metashape software using different ground truth spacing, using spacings of 0.25, 0.5 and 1 mile. We used Cloud Compare software to determine the error between each model. We assumed that the model generated using 0.25 points/mile was "truth". We used this preliminary information to determine that for bathymetry maps, a ground truth spacing of 1 mile/point was acceptable, we are continuing our research to refine this finding.
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Tabletop to Screens: Development of an "Unplugged-to-Plugged" Computer Science Curriculum

December 30, 0020 12:00 AM
Rasmussen, Melissa; Lauritsen, Jake; Clarke-Midura, Jody; Lee, Victor; Recker, Mimi (Utah State University)
Faculty Advisor: Lee, Victor (Emma Eccles Jones College of Education & Human Services, Instructional Technology and Learning Sciences Department); Recker, Mimi (Emma Eccles Jones College of Education & Human Services, Instructional Technology and Learning Sciences Department)

With the rising perception of computer science as a universally useful skill in the twenty-first century, researchers and schools test ways to effectively interest and introduce young children to computer science. Our project develops a curriculum pairing an "unplugged" board game component with a "plugged" portion in MIT's Scratch, pairing short class lectures with hands-on student learning. In order to effectively work with our partner school district and implement a complete unit without taking too many class minutes, we integrate much of the hands-on portion of the curriculum into existing library time. We run several iterations of the curriculum for fifth graders, refining the 6-8 week unit as we go. Of particular concern in our design is the typical middle school teacher's unfamiliarity with coding and computer science concepts. We find that it may be possible to capitalize on this unfamiliarity in order to improve student outcomes. We look at student creativity and computational thinking during the unit, seeking an increase in ability and self-efficacy by closing the unit with student creation of their own game boards. Furthermore, we examine female engagement and interest in the programming portion, with the goal of pinpointing factors that could increase female participation in computer science or partially explain the current deficit. The results of the implementation of our curriculum, with particular focus on the successes and failures that can be generalized to other computer science curricula, will be discussed.
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Construction of candidate vectors for correction of the intestinal CFTR gene expression in Cystic Fibrosis sheep fetal fibroblast cells

December 30, 0020 12:00 AM
Perisse, Iuri Viotti; Fan, Zhiqian; Wang, Zhongde; Harris, Ann; White, Kenneth L.; Polejaeve, Irina A. (Utah State University)
Faculty Advisor: PoleJaeva, Irina (College of Agriculture and Applied Sciences; Animal, Dairy, and Veterinary Sciences Department)

Cystic Fibrosis (CF) is a recessive human genetic disease that is caused by mutations in the Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) gene. This gene is responsible to transport Cl- and HCO3- anions in epithelial cells. Previously, we generated CFTR-/- lambs using CRISPR/Cas9 and SCNT techniques. The CFTR-/- lambs display many features similar to human CF disease, including meconium ileus (MI), pancreatic fibrosis, portal fibrosis and biliary hyperplasia, small gallbladder, and absence of vas deferens. In CF patients, MI affects only 15-20% of human babies, whereas it was observed in 100% of newborn CFTR-/- lambs and was the primary cause of death. We here hypothesized that the transgenic expression of the ovine CFTR cDNA under regulation of an intestinal-specific expression promoter would promote the correction of MI in CFTR-/- sheep. In this study, we are constructing three potential vectors with different promoters to be evaluated prior to the generation of transgenic animals. Rat intestinal Fatty Acid Binding Protein (iFABP), rat liver Fatty Acid Binding Protein (LFABP), and Villin1 promoters have already been characterized and successfully used for intestinal-specific expression. After digestion and ligation cloning, the three constructs will be sequenced to confirm the presence of all segments (promoter, cDNA, and vector) in the correct orientation. Subsequently, we plan to evaluate the transient gene expression of the constructs in CaCo-2 cells to ensure they are fully functional. Therefore, we will construct the pcDNA3.1>promoter>CFTR expression vector in order to generate intestine-CFTR transgenic CFTR-/- sheep.
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Validating Ductility Scaling Relationships Using DIC

December 30, 0020 12:00 AM
Buxton, Ashley; Ahmed, Jasmin; Smith, Adam; Rowley, Robert; Kingstedt, Owen; Berke, Ryan (Utah State University)
Faculty Advisor: Berke, Ryan (College of Engineering, Menanical and Aerospace Engineering Department)

As nuclear facilities grow older, the Department of Energy (DOE) seeks to understand how materials degrade under irradiation conditions. However, engineering-scale radioactive specimens are expensive to irradiate and difficult to handle. Thus, there is significant interest in new methods to characterize materials using miniaturized specimens. In recent years, several promising techniques have gained popularity (for example: nano-indentation, MEMs-based micro-tension, or nano-pillar compression), but there remains a significant gap in translating measurements at a micro- or nano-scale to material properties at an engineering scale.
In the late stages of ductility testing, localized necking means that two specimens of the same material but differing dimensions can produce drastically different elongation measurements. Barba's Law addresses this through scaling relationships. The law's key assumption is that similarly sized tensile specimens develop geometrically similar necked regions. The presented work utilizes this relationship to bridge ductility tests across length scales.
Throughout this research, full-field displacements are measured using Digital Image Correlation (DIC). In brief, DIC works by recording images of a specimen before and after deformation with a digital camera, then comparing the images to compute deformation. The gauge region is then varied to assess whether Barba's Law can be satisfied with a single long specimen and multiple shorter gauge regions. Multiple physical specimen lengths are then measured to validate the DIC results.
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General Control Non repressible 4 (GCN4) improves salt tolerance in Arabidopsis transgenic plants

December 30, 0020 12:00 AM
Kaundal, Amita; Hansen, Nathaniel; Ganesh, Jyothsna (Utah State University)
Faculty Advisor: Kaundal, Amita (College of Agriculture and Applied Sciences; Plants, Soils, and Climate Department)

Plants are sessile and bound to their origin so they cannot move to defend themselves against adverse environmental conditions. Soil salinity is one of such environmental stress, which limits the growth and development of plants. Salt stress directly affects crop production. It has been predicted that by 2050, about 50% of arable land will be affected by salinity. About 23% of the worldwide farmland is affected by soil salinity and the crop losses due to salinity are estimated to be tens of billion dollars per year. On top of that, an increase in the world population, the demand for food production also increases. Thus, feeding the growing population under adverse conditions is a challenge. This challenge demands to create more resilient crops to adverse conditions and to feed the growing population. In this study we are investigating General Control Non-repressible 4 (GCN4) in Arabidopsis for salt stress tolerance. GCN4 is an AAA+-ATPase (ATPases associated with diverse cellular activities). AAA+ proteins have diverse functions, such as assembly or disassembly of protein complexes, protein folding or unfolding, protein transport or degradation. It has been shown previously that when AtGCN4 overexpressed in Arabidopsis, it plays a significant role in host-pathogen interaction and control stomatal movement upon pathogen infection by degrading RIN4 - 14-3-3 proteins in PM H+-ATPase complex. Besides this GCN4 when overexpressed exhibit drought tolerance. In this study, we have investigated the previously developed overexpressed and silenced GCN4 Arabidopsis transgenic lines along with wild type plants for salt tolerance at different NaCl concentrations of 90mM, 120mM, and 150mM. So far, the studies indicate that the overexpressor lines were able to tolerate up to 150mm of NaCl as compared to the WT and silenced lines. Further studies are in progress to confirm our hypothesis that GCN4 improves the salt tolerance of transgenic plants. The obtained knowledge will help to investigate the common link in the mechanisms involved in various abiotic and biotic stresses.
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Amaebae in warming soils : The interactive effects of protozoan predation pressure and environmental factors on Nitrogen Cycling in soils under warming conditions

December 30, 0020 12:00 AM
Dodge, Reagan; Backman, Talia (Utah Valley University)
Faculty Advisor: Zahn, Geoffrey (Utah Valley University, Biology)

We assessed the ability of Pleurotus ostreatus, Oyster mushroom, to efficiently decompose waste products containing cellulose. As common pollutants are comprised of cellulose it is important to understand organisms that have cellulolytic enzymes such as P. ostreatus. The fungus P. ostreatus was introduced to the substrates of paper textiles, peanut shells, and livestock manure. After each treatment, the yield of mushroom production and remaining substrate was measured. As these substrates have been broken down during mushroom production they can be sold as inorganic fertilizer or compost. As well, Oyster mushrooms can be purchased and enjoyed in meals. Mushroom cultivation is a multi-billion dollar industry, and excessive wastes are a strain on the environment. By understanding what cellulase substrates produce the greatest yields we can eliminate waste all while increasing profits. Oh, and eating great mushrooms!
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Integration of Informal Learning into College General Chemistry

December 30, 0020 12:00 AM
Heider, Emily; Simkins, Kylee (Utah Valley University)
Faculty Advisor: Heider, Emily (Utah Valley University, Chemistry)

Expansion of science literacy is increasingly accomplished outside of formal classroom settings with reports of informal learning (IL) experiences at nature centers, demonstration shows, science museums, and scouting. Some researchers have expanded the range of informal learning to also include media, libraries, and public parks. These informal portals to science knowledge provide inclusive settings for learning, and reports of their development research opportunities and benefits are garnering increasing attention. This research describes the integration of informal museum-based learning into college general chemistry courses using the School Museum Learning Framework. Outcomes related to course content were quantified using pre- and post- assessment measures. Additional outcomes quantifying student motivation were evaluated using the Science Motivation Questionnaire. Results show improvement in some course-related outcomes as well as differences in motivation for students who participate in informal learning when compared with students who complete a conventional chemistry course.
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Determination of Diacetyl Concentration in Gouda Cheese

December 30, 0020 12:00 AM
Leatham, Dallin (Weber State University)
Faculty Advisor: Domek, Matthew (Weber State University, Microbiology); Oberg, Craig (Weber State University, Microbiology); Culumber, Michelle (Weber State University, Microbiology); Walker, Edward (Weber State University, Biochemistry)

Gouda cheese is known for its buttery flavor which is produced by the compound 2,3-butanedione or more commonly known as diacetyl. To measure the concentration of diacetyl in cheese a colorimetric test for vicinal diketones is used, known as the Voges and Proskauer (VP) method. This method involves using 5.0% a-naphthol and 0.4% creatine-KOH to develop a pink to red color. In the VP method the concentration of diacetyl is directly related to the absorbance. When this method was performed using known concentrations of Diacetyl in dH2O, a linear relationship was found to have a R2 value of .9571 confirming that the VP method is a viable method of testing for diacetyl concentration. It was proposed that by using a GC-MS to measure these concentrations a simpler test could be performed with similar or improved accuracy. Extracting of the diacetyl from Gouda cheese was done using a stomacher and a mixture of 50:50 acetone:dH2O. Before the concentration of cheese was measured dilutions of diacetyl concentrations were run in a 50:50 acetone:dH2O mixture at 0.1 uL/mL, 1 uL/mL, and 10 uL/mL. The concentrations of diacetyl that gouda cheese commonly contains are from 0.01 uL/mL to 0.1 uL/mL. It was found that the concentration of .1 uL/mL of diacetyl could not be distinguished from the background interference of the instrument. Currently it seems that using a GC-MS to determine diacetyl concentrations in gouda cheese might not be a practical method. Further research and a better understanding of the equipment could improve this method in order to obtain readable results.
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Funding Community College Child Care Services: How the Child Care Access Means Parents in School (CCAMPIS) Funding Influences Institutional Policy and Practice

December 30, 0020 12:00 AM
Avondet, Callie (University of Utah)
Faculty Advisor: Taylor, Jason (College of Education; Education, Leadership & Policy)

A shocking 33% of student parents graduate from college (Institute for Women's Policy Research, 2014). Part of this low graduation rate has been attributed to scheduling difficulties: the hours classes are offered, planning group-project meetings, and out of class requirements making it difficult to coordinate childcare (Kensinger and Minnick, 2018). Child Care Access Means Parents in School (CCAMPIS) is a federal program that provides money for childcare services to qualifying students at institutions whose students receive a total of $350,000 or more in federal Pell grant funding (Baskerville, 2013) . In fiscal year (FY) 2018 the overall amount of funding allocated to CCAMPIS and the number of schools getting this government grant nearly doubled. This provided CCAMPIS funding to many colleges that did not previously have it (Department of Education, n.d.). This project interviews the child care director from one randomly selected community college from each of the 9 US Census districts (excluding DC and Puerto Rico) to understand how CCAMPIS funding for FY 2018 changed institutional policy, practice, and programs related to child care in community colleges that did not receive CCAMPIS funding in FY 2017. Although data is still being collected, preliminary data suggests that CCAMPIS allows institutions to mold their childcare programs to the needs of their students through various projects. It also frees up more funding to help students who would still struggle financially to get access to childcare but do not meet the formal requirements for CCAMPIS money.
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