2015 Abstracts
Developing a Low-cost NIR Imaging System to Introduce Students to Medical Imaging Techniques
Ashleigh Wilson, Utah Valley University Physical Sciences At many institutions, the algebra-based introductory physics courses are populated with students specializing in biological fields such as preparation for medical or dental schools. While the main focus on the course is to provide the students with a solid conceptual understanding and solving problem skills in physics, the students often see little application towards their fields. This is particularly true in the traditional introductory physics laboratory experiments and demonstrations, which often focus on basic applications and offer no direct relation towards the medical fields. As part of a summer research project, we explored the possibility of developing a low-cost NIR imaging system, which could be used in demonstrations, laboratory exercises, as well as student research projects. The use of infrared imaging in medical physics is an emerging technology with promising prospects, including thermography, biometry, and phlebotomy. For example, when using near infrared (NIR) light (700-1100 nm), vein imaging and mapping is possible. Due to the deoxidized nature of hemoglobin in veins, it exhibits strong absorption at a certain wavelength (~730 nm). The surrounding tissue and arteries, however, allow the radiation to pass through. Utilizing an array of different NIR wavelengths and a modified web camera with a combined cost of $150, we successfully created a low-cost NIR imaging system capable of mapping out veins. This poster will present the instrument setup as well as show the preliminary results. Further potential use of this system will also be presented.
A Comparative Study on the Uptake of Nutrients and Trace Metals of Two Plant Subspecies (P.australis and P.americanus) in Utah Lake
Ashley Ostraff, Utah Valley University Physical Sciences Utah Lake has a long history of being impacted by anthropogenic activities like, mining, agriculture, and surrounding industry. All of these activities have contributed to the runoff that feeds the lake, increasing the likelihood that this area contains high levels of trace metals, nitrogen, andphosphorus. Utah Lake contains two subspecies of phragmites, a wetland reed, one native (P. americanus) and one non-native (P. australis). P. australis is replacing the native species at an alarming rate. P. australis is known to have a deeper root system than the native subspecies, because of this we suspect that this allow access to a less competitive soil level giving this subspecies greater opportunity for nutrient and trace metal uptake. By comparing the root zone soils of both subspecies we hope to gather results that support this hypothesis. Examination of the roots will also showthe potential influence the soil conditions have on their growth and development. This study will compare nutrient and trace metal uptake of each subspecies to determine impact. Other factors that will be assessed include plant physiology, carbon to nitrogen ratio (C:N), bioconcentration factor (BCF) and total trace metal content in tissues of both species. Samples of P. americanus and P. australis will be collected at 9 locations in Utah Lake. Soil samples at the root zone of each plant will also be evaluated. Each sampl e will be digested in the Microwave Accelerated Reaction System and analyzed in the Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) for C, N, P, K, Ag, Al, As, Ca, Cd, Cr, Cu, Fe, Hg, K, Mn, Na, Ni, P, Pb, Ti, and Zn. Results from this study will contribute valuable data to future efforts being used to preserve the biodiversity of the plants and animals that live in and around Utah Lake. The end goal of this student project is to be submitted to peer-reviewed scientific journals for publication and to be presented at academic and scientific conferences.
Effect of Roundup on Brine Shrimp (Artemia) Development
Kimberly Lowder, Weber State University Physical Sciences The herbicide Roundup and its active ingredient, Glyphosate, are widely used for weed control. These chemicals end up into streams and lakes, including the Great Salt Lake where it adversely affects wildlife. The goals of this project are a) to assess the mortality rate of Artemia larvae exposed to various concentrations of Roundup concentrate after a short exposure (48h) or a long-chronic exposure (7 days), b) to assess the effect of chronic on survival, maturation and fertility and c) to quantify the stress response of the shrimp on the heat-shock proteins 90 and 70. Materials and Methods: For the acute exposure, Artemia larval mortality was calculated in larvae exposed to Roundup concentrations ranging from 10-3 to 10-10 ml/l of Roundup concentrate for 48 h. For the chronic exposure, larvae were raised in the above Roundup concentrations. Mortality, maturation and fertility rates were calculated. The response to stress was assessed by quantifying the up-regulation of stress proteins hsp90 and 70 using western blots. Results: All larvae were killed after exposure at 10-4 g/l or greater of Roundup concentrate. Most larvae survived at Roundup concentrations of 10-6 ml/l or less. While chronic exposure to lower Roundup concentrations did not seem to affect survival or maturation rate, it did affect larval development. Larvae developing in 10-7 ml/l or more Roundup had about a 20% risk of not hatching or dying shortly after hatching. Hsp70 western blots showed an upregulation of this heat-shock protein at 10-5 ml/l or higher Roundup concentrations.
Geophysical Survey of Gossans in the Eastern Uinta Mountains, Utah
David Sutterfield, Utah Valley University Physical Sciences When sulfide-bearing rocks are exposed to oxidizing conditions, they become destabilized, leaving behind a framework of leached, altered, and replaced host rock called a gossan. Many of these gossans form by the oxidation of ore minerals and have been known since antiquity to be associated with ore deposits. However, the extent and quality of ore mineralization beneath a given gossan cannot readily be determined through surface sampling of minerals. Work conducted by mineral exploration professionals (in Africa, Australia, India, and the Middle East) has indicated that geomagnetic and geoelectric surveys of a gossan can be useful for constraining the shape, size, and economic potential of an associated ore deposit. Although gossans are found in Utah, there have been no published studies of these rock units either in terms of their economic potential or geophysical signature. The objective of this study was to carry out geomagnetic and geoelectric surveys to determine the geophysical signature of gossans exposed about 10 miles northwest of Vernal, Utah, on the southeastern margin of the Uinta Mountains, for the purpose of estimating the grade and depth of possible sulfide mineralization. The gossans overlie a heavily brecciated wedge of Mississippian Madison Limestone and are structurally bounded by the South Flank Fault, which forms the boundary between the Permian Weber Sandstone to the south and the Neoproterozoic Uinta Mountain Group metaquartzites to the north. Geoelectric measurements with an Iris Instruments Syscal Junior Resistivity System and inversion of a portion of the resistivity and chargeability data with the Interpex IX1D Sounding Inversion software shows a resistivity low (~200 Ω·m) and a chargeability high (~7 ms) below 23 m depth. Measurements of total magnetic field using a Geometrics G-856 Proton Precession Magnetometer were modeled with Interpex IX2D-GM Magnetic Interpretation Software and constrained with magnetic susceptibilities of exposed rocks measured in the field using a SM-20 Magnetic Susceptibility Meter. Models based upon a portion of the data show anomalies of amplitude about 100 nT and wavelength about 50 m, suggesting isolated bodies of elevated magnetic susceptibility (~0.08 SI units) with upper surfaces 20-30 m below the surface. Since, based upon the topography, the depth to the water table is also 20-30 m, the geophysical measurements are consistent with the presence of reduced sulfide bodies below this depth. Further work will include interpretation of remaining data and possible drilling for improved calibration of geophysical models.
Quantifying Heavy Metal Pollution in Utah Lake via Root System Accumulation in Two Subspecies of Phragmites Australis and Subsequent Determination of Anthropogenic Relevance
Kevin Jackman, Utah Valley University Physical Sciences Phragmites australis is a non-native subspecies of wetland reed that was introduced to Utah Lake from Europe during early exploratory settlements and is now outcompeting native flora in the lake’s wetland ecosystem. Utah Lake is a repository for toxic heavy metals from diverse mining operations and industrial operations proximal to the water. International studies have shown Phragmites to have strong potential as a phytoremediator and a reliable biomonitoring species of polluted water and soil, yet no work in this regard has ever been performed in the state of Utah or on Utah Lake. It is by measuring the concentrations of arsenic, lead, and 12 other trace metals within the root and rhizome system of these plants that a measurement of the contamination of the lake can be made, and to determine a quantitative concentration and severity of contamination with regards to public health and safety. If these trace metals are present in excess in the lake and its soils, toxic, and harmful conditions are present and are an issue of health to the natural ecosystem of the lake, as well as the citizens recreating and working throughout the lake on a regular basis. Determination of atomic content evaluation will be performed by the Induced Coupled Plasma Optical Emission Spectrometer. Future work can then be proposed to remediate the lake, in an effort to improve the human and environmental condition of the area. This project has the interest of the Utah Department of Environmental Quality and relationships have been established for current and future cooperation. The aim of this project is to be published and presented on a peer-reviewed level in scientific journals and at conferences.
Expression of the C-terminal Domains of the Tight Junction Proteins Claudin-16, -3, and -4 to Identify Interacting Proteins in Epithelial Ovarian Carcinoma
Brandon Davies, Utah Valley University Physical Sciences Epithelial ovarian carcinoma (EOC) is the sixth most common cancer in US women. The long-term cure rates are low due to the lack of reliable biomarkers for early disease detection, resulting in advanced stage diagnosis. Approximately 75%-80% of ovarian cancers are diagnosed at stages IIIV with a 10% 5-year survival rate despite aggressive treatments. Claudin proteins are being studied as possible biomarkers as they are aberrantly overexpressed in EOC tumors. The Claudin family of proteins are a main component of tight junctions in the upper region of epithelial cells that act as gateways for the exchange of water and solutes while also helping determine the cell’s polarity and function. Changes in these proteins cause changes in phenotype and function of normal epithelial cells, such as proliferation control, trans-epithelial resistance, polarity, and solute transport. Claudin-16 is often aberrantly expressed in breast and ovarian cancer, while Claudins 3- and 4 are highly overexpressed in EOC. The location of these proteins is also correlated with oncogenic transformations and cell proliferation. Determining the specific characteristics of these Claudin proteins can prove to be of incredible benefit in cancer treatments. As these proteins are targeted during these therapies, these tight junctions may then send normal signals, which in turn can regulate the cell normally. The C-termini of the Claudins, which are cytoplasmically located, contain a known PDZ-binding motif and may interact with other junction proteins or with proteins involved in interesting signaling pathways. To identify these interacting proteins, we will use the Expresso T7 Cloning System (Lucigen Corp., Middleton, WI) to purify the Claudin-16, -3, and -4 C-terminal tails to use in pull-down assays. This process includes using affinity tags to capture the Claudin tails by FPLC, which can then be analyzed by SDS-PAGE and, ultimately, the corresponding genes cloned and sequenced. This study can potentially provide crucial information in relation to how members of the Claudin family interact with other proteins that are commonly found in tissues that are misregulated in cancer. With this data treatments can be improved to increase the responsiveness of ovarian cancer patients.
Peak Density Histograms and Pathology Interpretations for High-frequence Ultrasonic Testing of Breast Cancer Surgical Specimens
Robyn Omer, Utah Valley University Physical Sciences Removal of all malignant tissue during lumpectomy is critical for preventing local recurrence of the breast cancer. Failure to remove all cancer results in 20-40% of lumpectomy patients returning for additional surgery. At Utah Valley University, a method is being developed to detect cancer during the initial surgery to ensure all of the cancer has been removed. Peak density, which is the number of peaks and valleys in a specified spectral range of a high-frequency (HF) ultrasound signal, correlates to breast pathology in lumpectomy specimens. The objective of this study was to determine if the histograms of peak density versus the number of measurements provide information on corresponding breast tissue pathology. High-frequency ultrasonic data were obtained from a blind study of surgical specimens obtained from 73 lumpectomy patients at the Huntsman Cancer Institute in Salt Lake City, Utah, and South Jordan, Utah. The data were normalized to remove bias between patients. The ultrasonic signals were converted to spectra using a Fourier transform. Peak densities were calculated from the spectra by counting the number of peaks and valleys in the 20-80 MHz range. This was achieved by counting where the slopes of the spectra (their derivatives) crossed zero. A histogram was created by assigning each peak density value to a bin, and then counting the number of measurements that fell within that bin. The histogram of the peak densities produced an asymmetric Gaussian-type distribution with a range of peak density values from 0 to 27 and a mode of 5. Using threshold values determined from a pilot study for differentiating pathology with peak density, it was determined that the peak of the distribution (5-6) corresponded to normal tissue pathology, the shoulders of the distribution (0-4 and 7-10) corresponded to abnormal pathologies, and the tail of the distribution (11-27) corresponded to malignant tissue types. These correlations matched the types of specimens tested, specifically tumors, margins, and lymph nodes. The correlations also provide a measure of the success of removing malignant tissue and achieving negative margins during lumpectomy procedures. Using histograms to analyze the data not only provides a new approach for differentiating tissue pathology, but also provides a statistical measure of the success of lumpectomy procedures performed by a specific surgeon or at a specific institution.
Measuring the Effect of Breast Density on High Frequency Ultra sound using Tissue Phantoms
Zachary Coffman, Utah Valley University Physical Sciences Breast density describes the proportion of connective tissue versus the fat tissue in the breast. Studies have shown that women with higher breast density are four to five times more likely to develop breast cancer than women with lower breast densities, (www.women.org/BreastCancer). Higher breast densities have proven to make current breast cancer imaging and detection more difficult. A pilot study done at the Huntsman Cancer institute showed that the ultrasonic parameter peak density, generated by high-frequency (HF) ultrasound (20-80 MHz), was sensitive to breast tissue pathology. The objective of this study was to determine the effect of breast density on ultrasound wave propagation from high frequency ultrasound using phantoms that mimic the histology of breast tissues. Phantoms were created from a mixture of distilled water, agarose powder, and 10X TBE stock solution. In order to simulate breast tissue histology and breast density, polyethylene microspheres were embedded into the phantoms in layers, totaling 4 layers per phantom. The polyethylene microsphere size (90-106 μm diameter) was kept constant within each phantom while the weight percent concentration of the microspheres varied (0.00g to 0.06g). Pitch-catch and pulse-echo measurements were acquired using 50-MHz transducers (Olympus NDT, V358-SU, 50 MHz, 0.635-cm diameter active element), a HF pulser-receiver (UTEX, UT340), and a 1-GHz digital oscilloscope (Agilent DSOX3104A). Glycerol (Genesis Scientific) was used as a coupling agent between the transducers and the phantoms. Spectra were derived from the data, giving peak density (the number of peaks and valleys in a specified spectral range), velocity, and attenuation values. The results showed that peak density did not start to show a trend until phantoms of 0.03g concentrations, where it increased from a value of 14.0 peaks (0.03g) to 18.7 peaks (0.06g). Velocity showed a statistically significant increase with greater polyethylene microsphere concentration, from 1508 m/s for 0.00g to 1536 m/s for 0.06g. No trends were observed for attenuation. These results indicate that higher levels of scattering centers in dense breast tissues will be detectable with high frequency ultrasound. This additionally shows that high frequency ultrasound may also be sensitive to greater amounts of connective tissue present in dense breast pathologies. High frequency ultrasound is sensitive to the weight percent of polyethylene microspheres. Future research is planned to further understand this relationship, including repeat studies and studies of phantoms containing chopped polyethylene fibers and triple the polyethylene microsphere concentrations to more closely simulate dense breast tissues.
Analysis of Flavonoids, Catechins, and Proanthocy anidins in Cacao Chocolate
Brad Draper, Hannah Firth, and Patricia Stauffer, Weber State University Physical Sciences It is widely known that cacao beans are one of the most abundant sources of naturally-occurring flavonoids on earth. However, chocolate products contain only a small percentage of the original flavonoids present in cacao beans, indicating that up to 95% of these flavonoids are lost during the manufacturing of chocolate. However, no one has identified the specific events or steps in chocolate preparation that destroys these flavonoids. We have measured the concentrations of a variety of nutritionally beneficial flavonoids at each step of the chocolate manufacturing process to identify the related extent of flavonoid losses. Following multiple-step extractions and sample preparations, we utilized chemical techniques of TLC, UV/VIS Spectroscopy, HPLC, and organoleptic testing to measure the levels of catechins and proanthocyanidins at each step of the chocolate making process.
Spanish Advertising Use Relative to Median Household Income
According to the 2010 US Census, the Hispanic population in Ogden City, Utah has grown by over 36%. This influx of population of Hispanic descent has influenced local businesses to begin advertising in Spanish through multiple mediums. To determine what factors influence a business’s decision to advertise in Spanish, locations of all print advertising in Ogden were determined through personal investigation. Second, neighborhoods and areas were divided according to census divisions that appear on the official website and median household income as well as the population of Hispanic people was recorded to determine if socioeconomic bias was present in the selection of where to advertise in Spanish. A linear regression comparing the total number of Spanish advertisements found in each geographical area was compared first to income, and then to total Hispanic population. The results of the regression illustrate a potential bias based on financial circumstances rather than ethnicity. Further study is needed to determine if this use of Spanish-advertising in the low-income areas affects Spanish-speakers’ access to healthy foods, housing, or other critical aspects of quotidian life.
Towards a New Classification of Rivers Based upon Generic Stage-Discharge Rating Curves
Jeremiah Rundall, Utah Valley University Physical Sciences The practice in hydrology is to deduce stream discharge from stream stage by creating a rating curve for each stream site from simultaneous measurements of stage and discharge. If a river could be assigned a generic rating curve with a small number of parameters, the cost of developing rating curves could be reduced. The first step has been to classify rivers according to whether there is a unique relationship between stage and discharge. The USGS National Water Information System database of about 3.8 million simultaneous measurements of stage and discharge at15,345 active and historic stream gaging sites was imported into a Python-driven data manipulation script. Linear relationships between z-scores of the logarithms of stage and discharge were developed for each site. A frequency spectrum of the slopes of the linear relationships was created by summing the normal distributions for each site with mean equal to slope and standard deviation equal to uncertainty in slope. There were no stream gaging sites at which discharge changed without a change in stage. At about 70% of stream gaging sites, over 90% of the variation in stage corresponded to a variation in discharge. At the remaining sites, significant variation in stage occurred without a variation in discharge. Current research involves identifying the characteristics of stream sites that lack a unique stage-discharge relationship and creating classes of generic rating curves by considering more complex functional fits.
High-Frequency Ultrasound (20-80 MHz) for Analyzing Breast Cancer Surgical Margins: A 73-Patient Clinical Study
Amy Fair Brother, Utah Valley University Physical Sciences Results from a 2010 pilot study indicated that multiple parameters in high-frequency (HF) ultrasound spectra (20-80 MHz) correlate to a range of tissue pathologies in surgical margins from breast conservation surgery (BCS). One of these parameters, peak density, was particularly effective at discriminating between normal, atypical, and malignant patholUtah Conference on Undergraduate Research 2015 100 ogies. Subsequently, Utah Valley University and the Huntsman Cancer Institute initiated a follow-up study to further investigate this approach. Objectives: The purpose of this study was to determine the sensitivity and specificity of HF ultrasound for differentiating malignant tissue from normal tissue in BCS surgical margins. Methods: A 73-patient blind study was conducted with conventional pathology used as the gold standard for assessing the HF ultrasound method. Specimens were delivered by the surgeon’s team immediately following resection and ultrasonically tested outside the surgical suite. The margins were approximately 3x20x20 mm, and were oriented using a small staple inserted by the surgeon in one corner and a stitch on one side. The margin was tested at 2-5 locations on the specimens using our methodology and then sent to pathology for their analysis. 498 specimens were tested from 73 patients. That corresponded to 1112 positions collected from the margins. The data was then analyzed for malignancy using peak density, and then correlated with the traditional pathology. Results: Results from the current study indicate that peak density can differentiate between malignant and nonmalignant pathologies with an accuracy of 73.8%. The correlation between pathology and peak density has a high level of statistical significance compared to random chance, with p = 0.000078 (Fisher’s Exact test). The results also provide data for improving the technique. For example, approximately 3 times more false positives were observed than false negatives, indicating the peak density threshold used for identifying malignant pathology is most likely too low and should be adjusted to a higher value. Conclusions: Results from this study showed that HF ultrasound has the potential to provide rapid, intraoperative evaluation of surgical margins, thereby decreasing the number of additional surgeries for patients and thus increasing the quality and efficacy of surgical treatment for breast cancer.
Chernobyl and Fukushima
Valerie Jacobson, Weber State University Physical Sciences This study will compare and contrast the differences between nuclear accidents in Chernobyl and Fukushima. The environmental impacts of the “fall-out” across the two differing landscapes and the displacement of the populations due to radiation contamination, e.g., soil contamination, will be analyzed. Research on health issues, such as the increased numbers of thyroid cancer cases in Ukraine and Belarus in those who were children at the time of the disaster in 1986, will also be reviewed and compared to current health issues in Fukushima. Certain weather patterns distributed the radioactive materials over specific geographic areas that later came to be known as “hot-spots.” The study will evaluate the evacuations handled by the respective governments and the “exclusion zone” measures put in place by each. While the nuclear disasters at Chernobyl and Fukushima have been compared as similar in disaster level, research and data collection of the fallout zones, or hot spots, reveal that the two disasters are not of an equal level. Factors such as air temperature, political and social responses all contributed to the disparity in levels of the two disasters.
A Plan for Complete Recycling of Stormwater on the Utah Valley University Main Campus, Orem, Utah
Paul Robertson, Utah Valley University Physical Sciences Evaluation of Utah Valley University’s stormwater plan reveals a simple system meant to collect stormwater into the city storm drains as quickly as possible. It is, however, vastly underdeveloped and many unspectacular summer and springtime storms have resulted in property damage, including those of nearby residents. The stormwater runoff has also collected concentrated amounts of hydrocarbons, nitrogen and heavy metals which are being fed directly into Utah Lake, acting as a significant source of pollution for the lake environment. The intentions of this project are to design a stormwater management plan that can withstand a 100 year, 24 hour event and prevent pollutants from entering the Utah Lake system. Mapping and modeling of the University’s storm drains will be accomplished using GIS as well as modeling for efficient retention sites on campus. Captured stormwater will then be used for a variety of functions here on campus and runoff into the adjacent lake will be reduced to insignificant values. Decisions regarding the ultimate implementation of this project will work in concordance with the University’s master plan of future development in order to realistically secure a reliable, low-maintenance system.
Mobility and Distribution of Trace Element Pollution in Sediments of the Utah Lake Outlet
Henintsoa Rakotoarisaona, Utah Valley University Physical Sciences The Jordan River is the only outlet of Utah Lake. Historically, this area has been impacted by urbanization, long term mining operations, industrial and agricultural activities resulting in potentially high levels of trace metal pollutants at the headwaters of the Jordan River. Since trace metals are known to be toxic at elevated levels, it is important to evaluate their concentration, distribution and mobility in this sensitive area in order to determine risk to wildlife, humans and downstream users of the Jordan River. Three core samples from 0 cm to 95 cm in depth were collected at the east (industrialized area), west (newly developed area) and north (an island barrier) sides of the outlet of Utah Lake. Each sample was digested in triplicates in the Microwave Accelerated Reaction System (MARS) using US Environmental Protection Agency Method 3052 and analyzed in the Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) for As, Cd, Cr, Mn, Pb, Cu, Zn, Co, and Ni. A multivariate analysis of variance (MANOVA) was used to analyze the data, with a boneferroni adjustment made for multiple comparisons. The results indicated that the East and North sediments of the Jordan River were significantly (P < 0.5) more heavily impacted by trace metal pollutants than the West side, with the North area accumulating higher levels of the majority of the trace metals or metalloid evaluated. Enrichment of Co, Cr, Pb and Zn was observed on the East sediment at concentrations reaching 10,821, 4.07, 13.7, 12.7, 119.4 mg kg-1, respectively. The most substantial elevation in the concentration of trace metals occurred with Cu in the North section of the lake, increasing from 349 mg kg-1 at 0-15 cm to 1383 mg kg-1 cm depth, showing high mobility, followed by Zn which increased from 46.7 mg kg-1 at 0-15 cm to 592 mg kg-1 30-45 cm depths. The enrichment of these trace metals in the East and North sediments at the outlet of Utah Lake pose a health risk to animals and humans who use these areas for recreational or agricultural purposes.
High-Sensitivity Spot Tests Used for the Detection of Diphenhydramine
Melissa Warren, Weber State University Physical Sciences Spot tests are commonly utilized as presumptive qualitative tests for detecting chemical substances. Such tests are the basis for detection of illegal drugs or for cleaning validations in manufacturing systems. In this study we evaluate the use of Scott’s reagent and Mandelin reagent for the detection of trace quantities of diphenhydramine (Benadryl). These reagents have been reported to give false positive tests for illegal drugs such as ketamine (cocaine) when diphenhydramine is present. Our studies were focused on enhancing the detection limits of these reagents and their application of swab tests for diphenhydramine. We report the limits of detection and swab techniques that enhance selectivity and sensitivity for this analyte.
Correlation of Force and Peak Density during High-Frequency Ultrasound T esting: A Reliability Study
Benjamin Finch, Utah Valley University Physical Sciences The Breast Cancer Research Laboratory at Utah Valley University has been using high-frequency ultrasound to test the pathology of surgical margins from breast cancer conservation surgery. Their studies have shown that high-frequency ultrasound may be sensitive to a range of breast pathologies. The ultrasonic parameter that has been shown to be the most sensitive to pathology is the number of peaks (peak density) in the frequency spectra from the captured waveforms. During testing, the ultrasonic transducers apply an amount of force to the tissues that can vary depending on the researcher. The central question of this study was to determine the effect that the applied force has on the final peak density reading, and therefore the reliability of the results. In order to determine the correlation of force and peak density, an experiment was designed to measure the force applied to tissue by the ultrasonic transducer during testing and to simultaneously measure the applied force while collecting ultrasonic waveforms. An Arduino Uno R3 instrument was obtained as well as an Interlink Electronics FSR 406 force sensor pad. The Arduino was programmed to read the voltage from the FSR sensor and use that information to provide force (N) and pressure (N/cm2) data from the stage. Peak density readings from bovine mammary tissue (very similar to human breast tissue) were acquired using varying amounts of force. The results obtained exhibited significant changes in peak density with applied force. The results showed that if the applied force is under 1.18N, the peak density will fluctuate significantly and will therefore give inconsistent results. However, if the force applied is greater than 1.18N, the peak densities will maintain a relatively consistent form. In conclusion, if the force applied during testing is above 1.18N, the waveforms captured from high-frequency ultrasound testing on breast cancer tissues will provide consistent and reliable results, thus improving the quality of the data and accuracy of diagnosis.
Monitoring Angiogenesis in Early Chick Dev elopment Using High-frequency Ultrasound: Method Development and Preliminary Results
Cameran Mecham, Utah Valley University Physical Sciences Introduction:
Validation of Metal Chelation by FTIR Spectroscopy
Monika Miller, Weber State University Physical Sciences Nutritionally important minerals are more readily absorbed by living systems when they are combined with organic acids. These combined metal-organic acid complexes are called chelate metals or chelates. The synthetic processes utilized to prepare these mineral chelates adds significant cost to the final product. Occasionally, manufactures sell cheaper dry blends of unreacted minerals and organic acids to gain an unfair competitive advantage in the market place. There are few if any reliable methods for reliable measurement of the extent of chelation between metals and organic acids. We report our successful application of Fourier-transform Infrared Spectroscopy (FTIR) for the quantitative determination of chelation in solid samples of mineral chelates.
Chemistry Laboratory Safety: Misconceptions among First-and Second-Semester General Chemistry Students.
Jennifer Melvin and Wendy Schatzberg, Dixie State University Physical Sciences The general chemistry laboratory can be a dangerous place, and the possible danger is amplified by the fact that general chemistry is frequently a student’s first chemistry laboratory experience. College students come from a variety of backgrounds with only some having had chemistry in high school, and therefore many students will not know beforehand what kind of precautions to take or what kind of action to take in case of an accident in the lab. Safety information is given briefly at the beginning of the semester, but the efficacy of this is uncertain. An online survey was conducted to gauge first- and second-semester general chemistry students’ knowledge about chemistry laboratory safety and the data gathered was analyzed. This survey was conducted at two secondary schools in two different countries. Statistical analysis will be presented. Results will allow discernment of misconceptions held by students over two semesters and between countries, and conclusions can be made about the effectiveness of current laboratory safety instruction methods.
Effective Dissolution of Keratin Using Ionic Liquids to Extract Radioactiv e Materials
Brett Barton, Dixie State University Physical Sciences Dissolution using ionic liquids has been shown to be an efficient analytical method of dissolving keratin fibers. Using wool and hoof material from livestock, chloride-based ionic liquids were used to break down the hydrogen bonds important for keratin structure, making the extraction of constituent material much easier. Efficient methods of extraction allow for small samples to be analyzed while still providing high yields; efficient dissolution of keratin in a small sample size will be utilized to prevent any harmful effects on the animals. Ionic liquids are nondestructive solvents which allow for the safe extraction of organic substances. Denaturing keratin would help in the process of identifying any constituent radioactive materials. Efficient identification of radioactive material in livestock is crucial for maintaining health and quality of life.
Spatially Understanding Utah’s Water Resources: A Story Told through Maps
Tim Beach, Utah State University Physical Sciences Successful management of the arid West requires a basic knowledge of available water resources, withdrawals, and existing management efforts. Utah, the second driest state in the country, is continuing its efforts to restore impaired water systems and teach the next generation to conserve water. Because of a fast-growing population, the diversity of Utah’s landscape, and strict regulations that govern water throughout the state, understanding the region’s current water condition can be difficult. Historically, the majority of this information has been stored in databases, represented by only numbers and statistics. In an effort to better conceptualize this data and increase the spatial understanding of Utah’s water, a set of maps have been produced. These maps were created using ESRI’s ArcMap software and Adobe Illustrator. Included are major lakes and rivers, average annual precipitation, average annual streamflow, total urban withdrawals per county, total agricultural withdrawals per county, and water management. Viewing visual representations of this information in multiple maps can aid in creating spatial inferences, and raise additional questions regarding aquatic restoration and management throughout the state. This set of maps can also be used to supplement physical science education at all school levels. Future work includes distributing these maps as posters to schools and water managers, as well making it a resource for teachers via websites and fact sheets.
Plant Fossil Locality in the Shinarump Member of the Chinle Formation (Upper Triassic) of Southwestern Utah (Washington County)
Melinda Hurlbut, Dixie State University Physical Sciences A newly discovered plant fossil locality in the Chinle Formation (Upper Triassic) in Washington County broadens the distribution of known Late Triassic plant fossil localities to include southwestern Utah. Previously reported plant localities in the Chinle Formation are known from southeastern Utah, Arizona, New Mexico, and equivalent strata from the Dockum Group in Texas. The majority of the known plant fossil localities are from higher stratigraphic units of the Chinle Formation. However, the new Washington County locality is from the older, basal unit, the Shinarump Member. The plant fossils identified from the new locality include fronds of the fern Phlebopteris sp., fertile leaves of the fern Cynepteris sp., and leaves of the bennettitalean Zamites sp. Undetermined species of conifers are represented by a partial branch and a three- dimensionally preserved cone containing well preserved seeds. The diversity of species found at the Washington County plant fossil locality correlates with other known floral assemblages from the Chinle Formation, suggesting general homogeneity of Chinle Formation floras. These plant fossil assemblages support interpretations of basal Chinle Formation paleoclimates as humid and warm.
Towards The Synthesis Symmetrical and Asymetrical Bimetallic Complexes for Use in Studies of the Oxygen Reduction Reaction
Eric Johnson, University of Utah Physical Sciences The ability to reduce O2 in mild conditions holds many important implications such as: use as an economical fuel cell, pharmaceutical synthesis, biomass degradation and conversion of small molecules to fuels. We are building the [M(μ-OH) (oxapyme)M(H2O)]+ molecules and symmetrical counterparts for use in O2 reduction reactions (M = Cobalt, Nickel, Iron). The precursors to the [M(μ-OH)(oxapyme)M(H2O)]+ have been synthesized as follows. 2-[5-(2-Nitro-phnyl)-[1,3,4]oxadiazol- 2-yl]-phenylamine serves as the backbone of the complex, allowing for two distinct ligands to be attached to each side. Initial yields for this synthesis averaged at 6%. To be able to complete the synthesis this needed to be significantly raised. The literature procedure was modified in various ways until new reaction conditions were found that allowed for 40% yield. Other precursors include 2,2’-(1,3,4)Oxadiazole-2,5-diyl-bis-aniline which also serves as a ligand backbone but differs in that it allows for preparation of a symmetrical ligand have been synthesized with a 51% yield. The first ligand Bis-pyridine-2-ylmethyl-amino has been produced with a 60% yield. The second ligand Methyl-pyridine-2-ylmethyl-amino has been synthesized with an approximate yield of 75%. These yields are high enough to finish the synthesis of the ligand and subsequently coordinate the metals. Upon completion, the electrochemical properties of the compounds that differ in the metal composition and the ligand (symmetrical versus asymmetrical) will be determined using studies such as cyclic voltammetry. Once the metal and ligand that are most apt at oxygen reduction is determined, more advanced studies will be undertaken to identify the reaction mechanism and intermediates.
Invasive Aquatic Species Attachment Inhibited by Surfactant Paint
Kyle Marcus, Cami McKellar, Riley Pearce, Shay Beck, and Zenja Draca, Dixie State University Physical Sciences Invasive marine and freshwater species have a detrimental impact on aquatic ecosystems and are easily transferred between bodies of water as a result of unregulated settlement and attachment to commercial and recreational watercraft. This results in infestation of waterways and disruption of native organisms throughout an ecosystem. The quagga mussel (Dreissena rostriformis bugensis) is one example of such invasive species that has called for a focus on cross-contamination prevention. The goal is to use aquatic paint suitable for watercraft that prevents the settlement and/or attachment of various aquatic species such as algae, snails (Physa sp.), anemones (Aiptasia sp.), and quagga mussels. The paint is integrated with newly developed surfactants that act as an inhibitor to the adherence ability of invasive aquatic species. The surfactants are added to provide a barrier between the paint surface and the organisms creating an undesirable surface area for the organisms to attach. This barrier disrupts the specific naturally occurring chemical and physical processes that allow organisms to adhere to surfaces. The most innovative characteristic of the surfactant-based paint is its effectiveness on adherence inhibition without degradation, dissociation, or toxicity to the environment. Preventing adherence of invasive organisms to surfaces could have significant positive effects on the efficiency and cost of operations in marine environments and waterways.
Analytical Chemistry Applications for Ionic Liquids as Novel Solvents
Mattie Jones, Dixie State University Physical Sciences Current techniques for isolating components of samples found at crime scenes by their unique chemical properties are lengthy and often destroy important forensic evidence. New methods aimed at forensic analysis of sensitive, minute samples are critical to the intelligence community. In particular, successful extraction of dyes from materials found at crime scenes will provide innumerable benefits for matching, identifying, and finding origins of these materials and dyes. Ionic liquids possess the necessary chemical properties to ensure efficient extractions while maintaining the forensic signatures of the original materials. Ionic liquids, which are organic salts that are room temperature, provide a versatile solvent to achieve single-component extraction-separation-identification of forensic analytes. Following extraction, successful identification by infrared, absorption, and fluorescence spectroscopy has provided evidence of preserved quality and complete separation of material and dye. This novel approach to forensic analysis is advantageous particularly when sample sizes are extremely limited, but it can be readily scaled to larger applications. Developing a simple and affordable method of achieving specific molecular interactions provides a solution for often unidentifiable evidence in crimes. Harnessing the versatility of ionic liquids in a high-yielding recovery and efficient single-pot methods will enhance forensic abilities for the intelligence community and forensic investigators.
Patterning Supported Lipid Bilayers with Magnetic Tweezers
Madeline Parson, Travis Bulloch, and Tyler Argyle, Southern Utah University Physical Sciences Lipid bilayers have many important purposes in living cells. A lipid bilayer forms a barrier which separates the fluid inside the cell from the fluid surrounding the cell. The arrangement of components within cell membranes can be extremely important, particularly in cell communications. For example, when our immune system attacks certain pathogens, it recognizes them by specific proteins in the inner and outer regions. This can be thought of as forming a “bull’s-eye” shape. The ability to generate such patterns in bilayers might see applications in many areas of biology. Our goal is to take an initially un-patterned supported lipid bilayer (model cell membrane) and use magnetic tweezers as a delivery system to generate patterns. We hope to show pattern formation using fluorescent-labeled lipids within our bilayer. In the past, we have used streptavidin and biotinylated lipids with Oregon Green. Currently, we are pursuing a fluorescein/anti-fluorescein system that has been yielding much more promising results. We are currently using a fluorescent microscope to confirm that patterns are forming within the bilayer.
Hip Joint Center Differences between Dual Fluoroscopy, Functional Hip and Coda—Establishing a Reference Standard
Michael Kutschke and Niccolo Fiorentino University of Utah Measurements of joint angles, moments, and forces can be sensitive to positional changes in the center of a joint. Due to its deep location, the hip joint center (HJC) can be difficult to determine. Regression equations and functional methods use skin markers and are commonly used to measure the HJC, yet introduce sources of error such as bony landmark identification, soft tissue artifact, and system resolution. Additionally, the accuracy of said methods cannot be established in-vivo without a reference standard. The purpose of this study was to implement a dual fluoroscopy (DF) and model-based tracking technique to quantify the subject-specific HJC position in-vivo. This reference standard (DF-HJC) was then compared to the HJC defined by regression equations (CODA) and a functional method (FHJC) using skin markers. Five subjects with normal hip anatomy provided informed consent to participate in this IRB approved study. A gait marker set was applied to the subject’s skin. The subject performed various activities involving the inferior limb while a 10-camera Vicon system measured the position of the skin markers. From these data, the CODA and FHJCs were identified. Simultaneously, the hip was visualized using a DF system, and the DF-HJC was identified using model-based tracking. The DF-HJC was then transformed to the Vicon coordinate system for comparison with the CODA and FHJCs. The average Euclidean distance (and standard deviation) for the five subjects from the DF-HJC was 2.0 (0.6) cm for CODA and 1.3 (0.4) cm for the FHJC. To our knowledge this is the first study to use DF and model-based tracking to measure the in-vivo position of the HJC. This technique affords greater accuracy in determining subject-specific bone geometry and visualization of deep hip anatomy, thus may be considered a reference standard for identifying the HJC.
High-Frequency Ultrasonic Measurement of Angiogenesis in Mice with Breast Tumors and Ligated Femoral Arteries
Michaelle Cadet, Utah Valley University Physical Sciences Breast cancer is the most common cancer among women in the United States. Tumor angiogenesis and its inhibition is an important aspect of oncology and the treatment of cancer. High-frequency ultrasound (10-100 MHz) is particularly sensitive to small vascular structures that are close in size to the ultrasound wavelength (15-150 _m). The ability to rapidly determine the degree of vascularization in small animals in vivo would provide a useful characterization tool for breast cancer studies. The objective of this study was to determine if direct ultrasonic measurements in the 10-100 MHz range could be used as a vascularization assay for breast tumors and other tissues. To accomplish this, six mice from the Huntsman Cancer Institute (Salt Lake City, Utah) with grafted breast cancer tumors (three control and three treated with an angiogenesis inhibitor called Avastin) were tested in vivo using through-transmission ultrasonic measurements. A second study was also performed at the Ludwig Boltzmann Institute for Experimental and Clinical Traumatology (Vienna, Austria), where the femoral artery in one hind leg of each of sixteen mice was ligated and tested over the time period of eight days. Eight of the ligated limbs were treated with vascular endothelial growth factor (VEGF) while the remaining eight ligated limbs were allowed to grow ischemic. The unligated limbs were controls. Results from the Huntsman Cancer Institute study indicated that breast tumors in Avastin-treated mice showed higher ultrasound velocities than control tumors. This can be ascribed to the vasculature in the nontreated tumors creating greater wave scattering in the tissue, thus decreasing the velocity. Results from the Boltzmann Institute study indicated that in mice with ligated femoral arteries, ultrasonic signals from ischemic limbs displayed a decrease in wave velocity over the test period as compared to the VEGF-treated limbs. However, both the ischemic and VEGF-treated limbs showed decreases in ultrasonic attenuation during the entire test period. Results from Avastin-treated mouse tumors and mouse limbs with ligated femoral arteries revealed that high-frequency ultrasound holds potential for measuring angiogenesis in vivo.
Peak Density and Attenuation as Complementary Parameters for Differentiating Breast Tissue Pathology
Nicole Cowan, Utah Valley University Physical Sciences Breast cancer is the second most prevalent cancer among women, affecting one out of eight women in their lifetime. The ability to differentiate between malignant and normal tissues during breast cancer surgery would enable the surgeon to remove all of the cancer from the affected region in the breast, thereby reducing the risk of recurrence and the need for subsequent surgeries. A pilot study conducted at the Huntsman Cancer Institute showed that high-frequency ultrasound (20-80 MHz), and in particular the ultrasonic parameter peak density, was sensitive to breast tissue pathology. The objective of this study was to determine the effect of tissue microstructure on peak density using phantoms that mimic the histology of breast tissue. Phantoms were created from a mixture of distilled water, Knox gelatin, and Metamucil fiber. In order to simulate breast tissue histology and terminal ductal lobular units, polyethylene microspheres were embedded into the phantoms in layers, totaling 4 layers per phantom. The volume percent of polyethylene microspheres was kept constant in each phantom while varying microsphere sizes (58-925 μm diameter). Pitch-catch and pulse-echo measurements were acquired using 50-MHz transducers (Olympus NDT, V358-SU, 50 MHz, 0.635-cm diameter active element), a HF pulsar-receiver (UTEX, UT340), and a 1-GHz digital oscilloscope (Agilent DSOX3104A). Glycerol (Genesis Scientific) was used as a coupling agent between the transducers and the phantoms. Spectra were derived from the data, giving peak density (the number of peaks and valleys in a specified spectral range) and attenuation values. In a previous study, histology- mimicking phantoms were fabricated where the weight percent of polyethylene microspheres was kept constant, but the microsphere diameter was varied. The former study showed a clear trend of higher peak density values for smaller diameters, but no trend for attenuation. In contrast, the phantoms from this study showed no trend in peak density, but a clear trend of higher attenuation values for larger microspheres. The results show that specific changes in tissue microstructure affect the parameters of peak density and attenuation differently. Changes in the number of scatterers and in their size, as in the previous study, affected peak density most significantly. In contrast, changes solely in the size of the scatterers, but not in their number, affected attenuation most significantly. These results are consistent with attenuation results for lobular carcinoma in the pilot study. These results show that peak density and attenuation are complementary parameters, and could be used together to characterize a variety of tissue pathologies
The Musical Phiquence: Finding Phi in Musical Progressions
Sergio Arellano, Snow College Mathematical Sciences Why is music so pleasant to? In Western music, we have used what is called the “tempered scale” for centuries, and even though it has gone through changes, it is still largely based around the mathematical principles that Pythagoras created two thousand years ago. Is it possible that the explanation to this phenomenon has to do with the mathematical basis of music, which is unconsciously perceived by the brain? The human brain is known for detecting the underlying mathematical patterns present in many non-music related disciplines, such as visual arts. Independent of the music world, there is a proportion called the Golden Ratio or Phi. It is found in art and geometry, because human eyes tend to find that this proportion produces beauty. This is not a coincidence; this proportion is found everywhere around us, especially in nature. With this in mind, it makes sense to search for the Golden Ratio in the tempered scale to explain the mind’s intuitive appreciation of music. This research discovered the surprising fact that there is a Phi relationship between the first and third degree of the major scale, in terms of the frequency of sounds. The relationship is this: the sum of the frequencies of the notes of the minor III chord divided by the sum of the frequencies of the major I chord in any given major key, tends to be Phi. Another very surprising result was the importance of the number 24 in the frequencies of the major scale. These two particularities help to shed light on why human ears have an untaught comprehension of music; the underlying perception of mathematical relationships by the mind are related to the natural appreciation of it.
Study the Stability of Steady Solutions for a Model of Mutualism
Amy Gifford and Brennon Bauer, Southern Utah University Mathematical Sciences Mutualism is the way two organisms of different species exist in a relationship in which each individual benefits from the activity of the other. We study a mathematical model of mutualism. The stability of the steady state solutions of this system will be analyzed. Also, we give some numerical experiments that verify the theoretical results for those steady solutions.
The Divisibility of p^(n)-1 for p>5, p a Prime Number
Jason Adams, Nathan Jewkes and Tyrell Vance, Southern Utah University Mathematical Sciences We will study the divisibility of p^(n)-1 where p is a prime number larger than 5 and n is a positive integer. We will generalize the result by considering the case where n is odd and two cases where n is even. We show that when n=2^(k), k an integer greater than 1, 2^(k+2)∙3∙5 is a factor of p^(n)-1. We also show that when n=2^(m)∙l for m a positive integer greater than 1 and l an odd positive integer greater than 1, 2^(m+2)∙3∙5 is a factor of p^(n)-1.
An Environmental Reconstruction of Lake Channel, Idaho, from Microfaunal Remains
Madalyn Page, Brandi Allred, and David Byers, Utah State University Social and Behavioral Sciences Relative abundances of small mammals often monitor environmental conditions due to these animals’ high sensitivity to climatic fluctuations. In this study, we document small mammal remains recovered from recently deposited owl pellets collected in Lake Channel, Idaho, located on the Snake River Plain. These pellets were dissected and cataloged according to diagnostic and non-diagnostic osteological characteristics. Following standard procedure, we used the crania and mandibles for MNI calculations, as well as species-level identification of small mammals. After identifying the small mammals down to species level, we compared our results to a habitat profile that suggests the microfaunal remains occupy both xeric and mesic habitats. These results remain consistent with the present day dune and riparian environments found in Lake Channel. Further analyses will compare this present day base-line climatic model to recently excavated small mammal assemblages documenting ancient Lake Channel climates.
Post Assessment Metacognitive Strategy Sheets Impacts on Subsequent Assessments
Austin Hernandez, Snow College Social and Behavioral Sciences Student’s study habits are always a matter of concern for both instructors and students themselves. Often times when students are learning a new subject the information the receive about studying centers around how they should study for “that class.” Research has also shown that students regularly overestimate their academic ability. The current research examines what happens if student in introductory courses are given strategy sheets which asks them to examine their study efforts and metacognitive strategies in preparation for the exam. This focuses not on the content, but the process that students use to prepare. The data collected from the students will be analyzed in comparison to their performance on subsequent exams to see if the focus on metacognition can effect a positive result on future exams.
Johnson: Criminally Negligent or Negligently Criminal?
Frederic Van De Water, Dixie State University Social and Behavioral Sciences In the Fall of 1963, President Lyndon B. Johnson chose to escalate American participation in the Vietnam War Conflict based on false intelligence information about the Gulf of Tonkin incident. Once Johnson realized the full truth of the event, he was caught in a public relations trap since he had already announced that the United States had been attacked. Throughout the Johnson administration, there was a large discrepancy between public relations messages to the American people and internal statements about the actual mission, objectives, and success of the war. In the early days of the Nixon administration, Dr. Daniel Ellsberg, a senior consultant from the RAND Corporation, leaked thousands of pages of classified documents about this phenomenon to the New York Times in hopes of bringing an end to the Vietnam War. Since this time, many historians and policy analysts have utilized this limited collection to study the war. In 2011, the Obama Administration had the National Archives release the complete set of documents online. Utilizing this expanded collection, I will compare and contrast how the Johnson administration’s message either conflicted or at times coincided with what was being done in Vietnam as part of wider Department of Defense policy.
Women’s Voice in Comic Books?
Taylor Pike Casara Reeves, Jennifer Sroka, Snow College Social and Behavioral Sciences There is a lot of information about how women’s bodies are portrayed in comic books, we are researching the voice that women have in comic books through time. In our research, we are attempting to find out what women have to say in comic books. We are accomplishing this by taking varying comic books from different publishers, using different teams or superheroes, and analyzing the contribution that women have in each edition. We will also be examining how other characters respond to what the women have to say. Our hypothesis is that women in modern comic books have more to contribute to the plot and the dialogue than women in earlier comic books. However we also suspect that women in comic books will not be given the same input or value as males in the comics.
Utah Resident Climate Change Beliefs as Predictors of Residential Water Use and Local Water Conservation Policies
Grant Holyoak, Utah State University Social and Behavioral Sciences While extensive research has been performed on the effects of climate change on water resources, little analysis has been performed that examines how a population’s belief about climate change affects its residential water use behaviors and its support of local water resources policies. This study, as an appendage of the extensive NSF-funded “iUtah” Project (innovative Urban Transitions and Aridregion Hydro-sustainability), seeks to fill this gap in the research through statistical analysis of a household survey distributed to over 2,000 Utah households during the summer of 2014. Surveys were distributed and collected through a revolutionary “drop-off/pick-up” methodology yielding a highly representative response rate. The project analyzes Utahan responses in both an analytical and an explanatory fashion, demonstrating how belief or disbelief in anthropogenic climate change is predictive of specific residential water use behaviors. The effects of climate change beliefs are also examined as predictors of resident support of potential local water conservation policies. Enormously beneficial to the arena of water conservation policy, this project leads to a better understanding of how climate change beliefs predict water use, allowing for more efficient strategy in the implementation of specific water conservation practices across American communities.
Children’s and Adolescents’ Moral Development and Self-Event Connections in Accounts of Harm
Kara Henrie, Stacia Bourne, and Cecilia Wainryb, University of Utah Social and Behavioral Sciences People draw conclusions about themselves from personal experiences; these are self-event connections (McLean, Pasupathi, and Pals, 2007). Little is known about children’s and adolescent’s self-event connections. The present study examined the types of connections 5-, 10-, and 16-year-olds formed in accounts of two types of moral transgressions: those in which they thought “it was my fault” and those which they thought “it was not my fault.” We hypothesized that connections made with “it is my fault” events would be more negative than those made with “it is not my fault” events and that children and adolescents would form self-event connections that differed with age. We expected 5- and 10-year olds would form morally relevant connections proportionately more often than 16-year-olds, and we expected the 16-year-olds would form proportionately more connections that described a stable sense of self. Forty children in each age group provided two narrative accounts of doing harm: an “it was my fault” experience, and an “it was not my fault” experience. Following these accounts, participants were prompted to construct a self-event connection. Types of self-event connections were coded as follows: (a) temporal scope: back then, now/across time, or going forward; (b) valence: negative or non-negative (e.g., “I am a bad person,” “I am friendly”); (c) relevance: moral or non-moral (e.g., “I am caring,” “I am forgetful”); and (d) generality: general or contextual. Preliminary results indicate that all age groups make negative connections equally frequently and make morally relevant and negative connections more often in “my fault” than in “not my fault” transgressive experiences. Sixteen-year-olds make connections describing the self as continuous across time more often than the other age groups. Finally, 5-year-olds are more likely to make no self-event connections and make connections that are morally relevant.
Attitude is Everything: Relationship Expectations, Sexual Attitudes, Literacy, and Behavior
Michelle Hammon, Lyndsey Craig, RonJai Staton, Christy Fiscer, Tina Brough, Zachary Olson, Deborah
Breaking the Taboo: Religious Beliefs, Sexual Literacy, and Sexual Well-Being
Christine Fiscer, Lyndsey Craig, Michelle Hammon, RonJai Staton, Tina Brough, Deborah Decker,
Organizational Pressures Limiting the Ability of Utah Social Service Agencies to Serve the Unauthorized Immigrant Population
Grant Holyoak, Utah State University Social and Behavioral Sciences Extant research has identified a number of gaps in the social services available to immigrants in the U.S. and, relatedly, the impacts of these gaps on immigrant well-being. Less research has analyzed the factors that impact how social service organizations respond to the needs of immigrants. Understanding the constraints and opportunities such organizations face is key to identifying ways to successfully remedy critical resource gaps. Data for this study were collected through in-depth interviews with leaders from two dozen Utahan agencies, which offer services ranging from educational promotion to religious humanitarianism. Drawing on organizational theory, this research advances the field by identifying the coercive, mimetic, and normative pressures that social service organizations face and how these pressures shape organizations’ responsiveness to the needs of immigrant communities. Cultural, organizational, and legal variables are identified as inhibitors to the ability of these agencies to meet the needs of this population, and recommendations are given regarding the abatement of these pressures. The policy implications of this analysis are applicable on the local, state, and national levels, and prove essential to the continued debates surrounding the service of this marginalized demographic.
Bringing the Benefits of Nature Indoors; Difficulties with Attention Restoration Experiments in the Laboratory
Chalise Carlson, Jason Watson, David L. Strayer, Eve Miller, and Ashley Pyne, University of Utah Social and Behavioral Sciences Attention Restoration Theory (ART) promotes the concept that attentional resources requiring focused thoughtfulness are revitalized by the easy or “soft” inherent captivation we experience in natural surroundings. Oppositely, loud urban settings are considered attentional resource eradicators. Atchley, Strayer and Atchley (2012) strengthened the ART premise in an experiment using the Remote Associates Test (RAT), a measure of creative cognition. In their experiment, the RAT scores gathered from backpackers on the last day of a four day hike sans technology were significantly higher than those of a separate group of backpackers before embarking on a similar excursion. In our experiment, we controlled for extraneous variables by presenting the experiment indoors utilizing videos of attention depleting (urban) and attention stimulating (nature) environments. Early trials employing pre-video, post-video RAT scores as the measures of restoration found comparable results to the outdoor studies with a 12% increase in the nature group’s scores and a 5% increase in the urban group’s scores. However, our attempt to increase the effect by doubling the video viewing time resulted in a loss of effect, slanting the data toward the urban group as the most improved. F(1,208)=3.22, p=.07. Moving forward with Attention Restoration Theory, we feel there is validity in outdoor experiments. Immersion into the outdoors likely produces a sufficiently powerful influence which overcomes the RAT’s indirect measure of cognition. Additionally we exert that potential exists for the indoor studies as well. Indoor experiments, lacking the immersive quality, would likely benefit from a more sensitive, direct measure of attention. Further, future studies should also consider utilizing representative stimulus shown to maximally induce restoration, such as scenes evoking “mystery” or “fascination” (ie. a winding path disappearing into a dense forest.) Future application of these specific attributes may intensify indoor results.
Utah’s Sex Education Controversy: Is it Relevant Today?
Alexandra Butler, University of Utah Social and Behavioral Sciences Utah’s policy of abstinence only sexual education is often discussed as a contentious issue. Some worry that, if not taught in school, young people will not obtain accurate information on sex, contraceptives, and sexually transmitted diseases. Others fear that talking about sex will encourage young people to have premarital sex, breaking norms of society. As a result sex education in Utah excludes essential issues like contraceptive use. However, with today’s technology providing easy information access to all matters, including sexuality, is policy concerning sexual education even a relevant concern? The central questions for this project are how young people in Utah today learn about sex, contraceptives, and STI’s, from whom they learn (school, parents, friends, internet etc.) and how accurate and compete is the information they gain. This was done through a series of qualitative open-ended interviews with Utah High School graduates ages 18 and older, equally representing both sexes. Later, answers from the interviews for key questions were coded for quantitative analysis on how Utah teens obtain their sexual education. This project has greater implications concerning what is taught in Utah sexual education classes. If most teens obtain accurate health information from outside sources, then sexual education classes could be utilized to focus on other areas of information, such as relationships. The information from this study may help educators to structure sex education courses in such a way as to fill the gaps and engage students in discussions that are appropriate and relevant for today’s changing society.
Self-reported Reasons for Motivation to Exercise and Association with Mental Health
Thomas White and Jason Woodruff, Brigham Young University Social and Behavioral Sciences Exercise has been shown to be an effective adjunct to therapy in combating depression symptoms (Josefsson, Lindwall, and Archer, 2014; Seime and Vickers, 2006; Stathopoulou, Powers, Berry, Smits, and Otto, 2006). However, it can be difficult to motivate individuals who experience depressive symptoms to begin and maintain an exercise routine (Seime and Vickers, 2006). Here we investigate which motivations might help those who demonstrate symptoms of depression to begin and maintain an exercise regimen. This study examined Frequency and Duration of exercise as well as motivation to exercise and relationship to scores on a Depression scale. A sample of 184 BYU undergraduate students taking psychology classes participated in the study. Controlling for gender, we collected data regarding participants’ current Depression symptoms, exercise regimens, and motivations for exercising (for Sociality, Competition, and Fitness). Multiple regression analyses showed Duration and Frequency of exercise were negatively correlated with Depression. Furthermore, motivation for Fitness was positively correlated with Depression scores and Competition was negatively correlated with Depression scores. We also found that Motivation for Sociality was negatively correlated with Depression scores. We explore possible reasons for these findings. Overall, we show that Sociality and Competition may be the most potent motivators in helping college students maintain motivation to exercise. To our knowledge, there are few studies that have examined motivation to exercise in junction with depression symptoms. The results have practical implications for clinicians who may recommend exercise to their clients to encourage exercising to reduce depressive symptoms.
Exploring the Modes through Which the Wee Care Center Impacts Student Success at Utah Valley University
Alexis Ross, Utah Valley University Social and Behavioral Sciences The new Wee Care Center at Utah Valley University opened its doors to students in January of 2014 with an increased capacity, serving 110 children at any given time, double the number of children the old facility could service. Because Utah Valley University has the lowest women success rate in the state (based on data provided by the Women’s Success Center), one of the primary purposes of expanding the Wee Care Center was to increase women’s success and degree completion at UVU. Currently, the Wee Care Center serves approximately 120 students, however, it is unknown how many other Utah Valley University students need childcare services and are not being served by the Wee Care Center. The purpose of this study is to assess the impact of the current services of the students being served by the Wee Care Center, with targeted focus on women, and also to identify the students that could be served, the degree to which their current childcare needs are being met, and how these needs are impacting their student success. This study is a collaborative effort between the Department of Student Leadership and Success Studies, the Women’s Success Center, and the Wee Care Center. The Women’s Success Center will email a digital survey, using Qualtrics, to all Utah Valley University students with children, targeting students with children ages 6 weeks to 5 years, the current population serviced by Wee Care Center. This survey will gather information that will help assess the unmet childcare needs and their influence on student success, including emotional, physical, educational and financial challenges that are commonly presented while simultaneously pursuing a degree and raising children. In addition, the Wee Care Center will administer a paper survey to students being serviced by the center while the students are on site, which should increase the response rate. This survey will explore the ways the Wee Care Center contributes to the student success of those being served by the facility.While it may be too early to determine long-term effects of the Wee Care Center expansion, the objective of this study is to measure the immediate impact on those students who are being served by the new Wee Care Center since its opening, to assess the increased success of students pursuing their educational goals with access to the Wee Care Center, and to explore the level of student success from students with children that are not using the Center.
The Belief in Love Myths and Their Influence on Sexual Relationship Progression in College Age Students
Clair Talley and Melissa Benavides, Snow College Current research done by Susan Sprecher and Sandra Metts (1989, 1999) discusses the presence of romantic ideals and their effect on the quality of relationships. While this research focused mainly on committed relationships of college-aged students, it did not investigate the influence of these love beliefs on their sexual relationship progression. Other research that does look at why students have sex suggests that it is seen as a right of passage, a gift, a stigma, and even a means by which students can alter their mood. (Humphreys, 2013 and Dawson, Shih, de Moor and Shrier, 2008)
Referential Worlds: Concepts of Selfhood and Social Context among Telugu Transnational Families
Stéfanie Morris, Brigham Young University Social and Behavioral Sciences This study seeks to explain intergenerational changes in reference and selfhood for Telugu parents and for their emigrant children and grandchildren. I argue that individuals have indexical worlds—landscapes of familiarity, signs, meaning, material, and experience. These worlds are open systems, ever changing and growing as the universe and all things in it act and are acted upon (people, animals, rocks, trees, ideas, and more). Challenges often arise when individuals leave an area where they can easily connect to other individuals’ similar indexical worlds. An inability to fully understand the signs and meanings of other contexts or people often causes individuals to feel a sense of dissociation. I argue that for all people, referential worlds connect to feelings of selfhood, or belonging, as well as influence relations between generations as traditional customs and practices are syncretized with their new environment.
The Intent of Assassination
Braxton Larson, Dixie State University Social and Behavioral Sciences In 1962 President John F. Kennedy publicly praised President Ngo Dinh Diem for his leadership “to the defense of freedom” and protecting the Vietnamese from “unprovoked subversion and terror.” Ironically within the year, after Buddhist monks started setting themselves on fire in protest of Diem, Kennedy ordered his assassination for his role as an oppressor of his people. Was this change of policy based upon a change in Diem, or a change in the intelligence information President Kennedy was receiving? If his previous information had been correct, was President Kennedy intentionally lying to the American people? Questions like these plagued politicians, military leaders, and the general public during the Vietnam War. Now with the release of the full collection of the “Pentagon Papers,” researchers can definitively document most discrepancies between the rhetoric and the reality of that controversial conflict. This paper will explore these questions about the Kennedy administration, more specifically asking the vital question if the entire origins of the conflict were based upon lies.
Children and Adolescent’s Guilt Proneness and Moral Judgments of Their Own Transgressions
Marshall Grimm and Stacia Bourne, University of Utah Social and Behavioral Sciences Despite youth’s efforts to act in morally acceptable ways, it is inevitable that they will hurt or cause harm to others (Wainryb and Recchia, 2013). Hurt feelings may be caused by purposeful misdeeds, but they also may be caused through accidents, pursuit of instrumental goals, or misunderstandings. Most older children and adolescents seem to consider both their justifiable reasons and the hurt that they caused when they judge their harmful actions. This dual focus leads many youth to evaluate their transgressions as not entirely negative (e.g., as mixed – both wrong and not wrong). Some children may be less likely to see that there are justifiable reasons that underlie some transgressive actions. For instance, it is likely that children and adolescents who feel excessive guilt for their transgressive actions will make moral judgments that are more exclusively negative. Some youth are dispositionally more guilt prone than others (Tangney 1990). Therefore, we expect that guilt prone children and adolescents will judge their transgressions more negatively than those that are not guilt prone. To examine the relationship between youths’ guilt proneness and their moral judgments of their own transgressions, we assessed 80 children and adolescents (M age = 12.86). Guilt proneness was found to be a significant predictor of moral judgments. Specifically, youth who were more guilt prone made more negative judgments. Having a clear picture of the relationship between guilt proneness and moral judgments can help parents of guilt prone kids to scaffold their children to consider the many complex features of moral transgressions and to understand it is sometimes appropriate to judge their actions as simultaneously both wrong and not wrong.