Digital Commons Network^™

Diet Of The Mohave Ground Squirrel (Xerospermophilus Mohavensis) In Relation To Season And Rainfall, Barbara M. Leitner, Philip Leitner

Western North American Naturalist

The Mohave ground squirrel (Xerospermophilus mohavensis) is endemic to the western Mojave Desert of California. It is listed as threatened under the California Endangered Species Act, yet there is little published information on its habitat requirements. We studied the diet of Mohave ground squirrels at 4 sites in desert scrub habitat in Inyo County, California, primarily by microhistological analysis of 754 samples of fecal pellets collected from live-trapped animals. Over all sites and seasons, shrub foliage was the largest component of the diet (39.8% relative density) and mainly derived from several taxa of Chenopodiaceae: winterfat (Krascheninnikovia lanata …

Seed Predation In Wild Populations Of Chamisso Arnica (Arnica Chamissonis Less: Asteraceae) And New Host Records For Campiglossa Snowi (Hering) (Diptera: Tephritidae), Robert L. Johnson, Val J. Anderson, Adam T. Yankee, Zachary Anderson

Western North American Naturalist

New host records are reported for Campiglossa snowi (Hering), Tephritis leavittensis Blanc, and Trupanea nigricornis (Coquillett) on Arnica chamissonis Less. and C. snowi on Arnica mollis Hook. Campiglossa snowi was the only fruit fly reared from A. chamissonis from 3 different populations from the Kenai Peninsula, Alaska, over 5 sample years. A total of 1114 specimens of C. snowi were reared from the flower heads of 337 plants averaging 5 flower heads per plant. Seed damage from fly larvae ranged from 0% to 54.8% per capitulum, with an overall average of 18.3% across all years and between 3 sites on …

Electrophysiological Endophenotypes And The Error-Related Negativity (Ern) In Autism Spectrum Disorder: A Family Study, Scott A. Baldwin, Ann Clawson, Mikle South, Michael J. Larson

Faculty Publications

We examined the error-related negativity (ERN) as an endophenotype of ASD by comparing the ERN in families of ASD probands to control families. We hypothesized that ASD probands and families would display reduced-amplitude ERN relative to controls. Participants included 148 individuals within 39 families consisting of a mother, father, sibling, and proband. Robust ANOVAs revealed non-significant differences in ERN amplitude and behavioral performance among ASD probands relative to control youth. In subsequent multiple regression analyses group and kinship (proband, sibling, mother, father) did not significantly predict ΔERN (error minus correct ERN) or behavioral performance. Results do not provide evidence for …

Emu, Julia Mulligan

Children's Book and Media Review

In an Australian eucalyptus forest, a male emu must hatch and protect his clutch of eggs completely on his own. From the moment the last egg is laid and the mother emu disappears from her family’s life, this gigantic flightless bird devotes himself entirely to their survival. He rarely eats or drinks in order to protect his eggs from hungry predators, and once they hatch he must closely supervise his foraging chicks for six months in order to guard them from goannas, dingoes, and eagles. Alongside the story of the emu family are relevant facts about emu biology and behavior.

Dual Mechanism For Toughening And Sustained Aminoglycoside Elution From A Polyphosphate Hydrogel, Dwight D. Lane, Russell J. Stewart Phd

Biomedical Engineering Western Regional Conference

No abstract provided.

Differentiation And Containment Of Derived Pancreatic Beta Cells, Caden Duffy, Alonzo Cook Ph.D.

Biomedical Engineering Western Regional Conference

Currently, the only permanent cure for Type 1 Diabetes is a pancreatic or islet transplant. With the shortage of donors, we are progressing research towards alternative therapies by differentiating induced pluripotent stem cells into derived pancreatic β-cells that can be transplanted and used as treatment for Type 1 Diabetes. We are investigating methods to increase the yield of fully derived, insulin producing pancreatic β-cells and are additionally researching the use of hydrophilized expanded polytetrafluoroethylene for use in cell containment devices. These devices could offer a future alternative for islet transplantation in human patients.

Utilizing Microfluidics Devices To Monitor Endothelial Cell Migration., Tsz Ming Jeremy Tsang, Jacob Lefler, Charles Voyton, Kenneth Christensen

Biomedical Engineering Western Regional Conference

Utilizing microfluidics devices to monitor endothelial cell migration.

High-Density Non-Fouling Bioactive Coatings: Development And Characterization, Bonan Yu, Ramya Raman, Karl Schlike

Biomedical Engineering Western Regional Conference

No abstract provided.

Engineering Fret Biosensors For Microrna Presence/Absence Analysis, Nicholas E. Larkey, Sean M. Burrows

Biomedical Engineering Western Regional Conference

No abstract provided.

Portable, Powerless Automation Of Valve Actuation For Microfluidic Large-Scale Integration Technology, Andrew Schmidt Mr., Matt Fitzgerald Mr., Emre Araci Mr., Connor Mcloughlin Mr.

Biomedical Engineering Western Regional Conference

Portable, powerless automation of valve actuation for microfluidic large-scale integration technology

Optimizing The Growth And Characterization Of Retinal Pigment Epithelial Cells, Ian Wadsworth

Biomedical Engineering Western Regional Conference

Age related macular degeneration (AMD) is the leading cause of blindness in developed countries. One major difficulty in studying AMD is modeling the retinal pigment epithelium (RPE) in vitro. The RPE grows on the acellular Bruch’s membrane, which sits directly superior to the choroid layer. RPE cells have characteristic dark pigment and grow in tight polygonal cell junctions. When grown in tissue culture flasks, these characteristics are not exhibited. In this study, spider silk coated substrates were used to replicate the surface chemistry of Bruch’s membrane and promote RPE growth, morphology, and differentiation

Unusual Hprt Expression In Prostate Cancer Cells And Its Impact On Potential Treatment, Michelle H. Townsend, Abi M. Felsted, Michael D. Anderson, Richard A. Robison, Kim L. O'Neill

Biomedical Engineering Western Regional Conference

Unusual HPRT Expression in Prostate Cancer Cells and its Impact on Potential Treatment

In Vitro Antioxidant Oxidative Stress Treatment Model In Microgravity, Matt Clegg, Charles P. Harding, Taylor Clegg, Jon Takemoto, Elizabeth Vargis

Biomedical Engineering Western Regional Conference

We propose that the use of individual or a combination of antioxidants (specifically DL-alpha tocopherol phosphate disodium salt, mesobiliverdin, and L-glutathione) with astronauts in microgravity will reduce the effects of oxidative stress caused by ionizing radiation and muscular atrophy.

Molecular Modeling Of Antibody-Antigen Binding Near Solid Surfaces, Derek Bush, Thomas Knotts

Biomedical Engineering Western Regional Conference

Antibody microarrays are biosensors that have the potential to revolutionize molecular detection in medicine, scientific research, and national defense. However, current microarrays are not widely used due to problems including poor reproducibility and signal quality, unbalanced antibody performance, and cross-reactivity. Prior work in the area focused mainly on the stability of the antibody alone and not its affinity for its antigen. This presentation shows results of using molecular simulation to determine how different types of surfaces affect antigen binding to surface-tethered antibodies. The results offer an unprecedented, molecular-level view into these protein-protein-surface interactions and how to drive binding to occur.

Facies Analysis, Sedimentary Petrology, And Reservoir Characterization Of The Lower Triassic Sinbad Limestone Member Of The Moenkopi Formation, Central Utah: A Synthesis Of Surface And Subsurface Data, Kristopher Michael Powell

Theses and Dissertations

Lower Triassic strata in the Wellington Flat and Tully cores reflect a lateral transition from shallow water strata (Wellington Flats core) to strata that indicate deposition on a relatively more distal, storm-dominated ramp (Tully core). The Sinbad Member, along with the upper part of the underlying Black Dragon Member and the lower part of the overlying Torrey Member (Moenkopi Formation), are composed of ten carbonate, siliciclastic and mixed carbonate/siliciclastic facies deposited on a west-facing ramp/shelf that reached maximum flooding during Smithian time. Individual beds and facies display a large degree of lateral homogeneity and regional persistence in the study area. …

The Effect Of Time Of Day Of Chronic Exercise On Neural Response To Visual Food Cues, Jessica Taylor Davies

Theses and Dissertations

This study examined the effect of an 8-week, progressive exercise intervention on neural responses, specifically N2 amplitude as a measure of inhibitory control, to pictures of food. Healthy women ages 18-44 years were randomized to a morning (AM) exercise group or evening (PM) exercise group. The AM group did moderate-to-vigorous intensity exercise on 4 days per week between 6:30 and 9:30 a.m. while the PM group had the identical volume of exercise between 6:30 and 9:30 p.m. Neural responses, eating behaviors, cardiovascular fitness outcomes, and body weight/composition were measured at baseline and after the 8-week intervention. The N2 amplitude in …

Dangerous Fictions In Shakespeare's Richard Ii, Terence D. Wride

Student Works

In Shakespeare's Richard II, Shakespeare deposes monarchy by exposing the dangerous fictions of The King’s Two Bodies, Carl Schmitt's definition of sovereignty as expounded in Political Theology, and the English tradition of the divine right of kings and royal prerogative. By examining Ernst Kantorowicz's explication of the king's body politic and body natural as found his book The King's Two Bodies, I argue that Shakespeare critiques the popular political theology of his time by exposing the negative political repercussions of an ill-defined body politic. What past scholars have overlooked and failed to do is provide a concrete definition of …

Conspecific Pollen On Insects Visiting Female Flowers Of Phoradendron Juniperinum (Viscaceae) In Western Arizona, William D. Wiesenborn

Western North American Naturalist

Phoradendron juniperinum (Viscaceae) is a dioecious, parasitic plant of juniper trees ( Juniperus [Cupressaceae]) that occurs from eastern California to New Mexico and into northern Mexico. The species produces minute, spherical flowers during early summer. Dioecious flowering requires pollinating insects to carry pollen from male to female plants. I investigated the pollination of P. juniperinum parasitizing Juniperus osteosperma trees in the Cerbat Mountains in western Arizona during June–July 2016. I examined pollen from male flowers, aspirated insects from female flowers, counted conspecific pollen grains on insects, and estimated floral constancy from proportions of conspecific pollen in pollen loads. The tricolpate …

Deuterateer: A Tool For Quantifying Peptide Isotope Precision And Kinetic Proteomics, Bradley C. Naylor, Michael T. Porter, Elise Wilson, Adam Herring, Spencer Lofthouse, Austin Hannemann, Stephen R. Piccolo, Alan L. Rockwood, John C. Price

Faculty Publications

Motivation

Using mass spectrometry to measure the concentration and turnover of the individual proteins in a proteome, enables the calculation of individual synthesis and degradation rates for each protein. Software to analyze concentration is readily available, but software to analyze turnover is lacking. Data analysis workflows typically don’t access the full breadth of information about instrument precision and accuracy that is present in each peptide isotopic envelope measurement. This method utilizes both isotope distribution and changes in neutromer spacing, which benefits the analysis of both concentration and turnover.

Results

We have developed a data analysis tool, DeuteRater, to measure protein …

Input Data Scale Impacts On Modeling Output Results: A Review

Journal of Spatial Hydrology

The measurement scale is one of the most important aspects of remote sensing and hydrological modeling studies. Changes pertinent to scale or resolution of input data are reflected in modeling results. This study discusses different types of scales, resampling and rescaling techniques and several potential scale issues as addressed by past studies. Specifically, scale impacts of digital elevation model (DEM) and land use and land cover (LULC) data impacts on hydrological modeling results are discussed. Higher resolution data can accurately describe watershed characteristics but can be computationally intensive. Therefore, it becomes important to select a data resolution, which aides in …

Scary Ghost Stories In The Light Of Day, Allen L. Wyatt

Interpreter: A Journal of Latter-day Saint Faith and Scholarship

I have always been interested in the topic of polygamy and have, over the past few decades, read just about every book and commentary on the topic that I could find. I have spent many hours in the Church History Library, the L. Tom Perry Special Collections Library at BYU, and various other repositories poring over all of the source documents I could locate. Thus, I looked forward to reading a recent addition to the literary corpus on the subject contributed by Carol Lynn Pearson. Her book, The Ghost of Eternal Polygamy: Haunting the Hearts and Heaven of Mormon Women …

Looking Back, Almost Five Years On, Daniel C. Peterson

Interpreter: A Journal of Latter-day Saint Faith and Scholarship

As the axiom states, hindsight is 20/20. As Volume 24 of Interpreter: A Journal of Mormon Scripture nears the press, it seems relevant to look back to a tumultuous time nearly five years ago when the Interpreter Foundation was visualized and launched. If history has any value at all (particularly recent history), it provides a context for understanding the course on which we find ourselves. For the Interpreter Foundation, that course continues to be full of surprises and promise.

Opportunity Lost, Brian C. Hales

Interpreter: A Journal of Latter-day Saint Faith and Scholarship

The Ghost of Eternal Polygamy boldly declares “that plural marriage never was — is not now — and never will be ordained of God” (21) and that the Mormon religion is guilty of “extraordinary spiritual abuse” (22) due to the practice. Seven distinct problems associated with plural marriage are identified, four of which have merit: polygamy history is often messy; earthly polygamy is unfair to women; widows and widowers are treated differently regarding future sealings; and the cancellation of sealings has not always paralleled the desires of the participants. Three additional issues form the bulk of the discussion and are …

Full Issue

Interpreter: A Journal of Latter-day Saint Faith and Scholarship

No abstract provided.

“By The Blood Ye Are Sanctified”: The Symbolic, Salvific, Interrelated, Additive, Retrospective, And Anticipatory Nature Of The Ordinances Of Spiritual Rebirth In John 3 And Moses 6, Jeffrey M. Bradshaw, Matthew L. Bowen

Interpreter: A Journal of Latter-day Saint Faith and Scholarship

In chapter 3 of the Gospel of John, Jesus described spiritual rebirth as consisting of two parts: being “born of water and of the spirit.”1 To this requirement of being “born again into the kingdom of heaven, of water, and of the Spirit,” Moses 6:59–60 adds that one must “be cleansed by blood, even the blood of mine Only Begotten; … For … by the blood ye are sanctified.”2 In this article, we will discuss the symbolism of water, spirit, and blood in scripture as they are actualized in the process of spiritual rebirth. We will highlight in particular the …

How Big A Book? Estimating The Total Surface Area Of The Book Of Mormon Plates, Bruce E. Dale

Interpreter: A Journal of Latter-day Saint Faith and Scholarship

We do not have the Book of Mormon metal plates available to us. We cannot heft them, examine the engravings, or handle the leaves of that ancient record as did the Three Witnesses, the Eight Witnesses, and the many other witnesses to both the existence and nature of the plates. In such a situation, what more can we learn about the physical nature of the plates without their being present for our inspection? Building on available knowledge, this article estimates the total surface area of the plates using two independent approaches and finds that the likely surface area was probably …

The Book Of Mormon Witnesses And Their Challenge To Secularism, Daniel C. Peterson

Interpreter: A Journal of Latter-day Saint Faith and Scholarship

T here has been much comment recently on the growth in numbers of the religious “nones.” Not all of them are actually non-theists, but secularism or naturalism is undoubtedly on the rise — and Latter-day Saints have not escaped damage from the trend. Several recent books and articles have sought to help their readers live with doubt, cope with uncertainty, or find value or joy in the Mormon community even when some, most, or perhaps even all of its founding narrative has come to seem untenable. I believe, however, that naturalism should be directly challenged and that the Book of …

Should We Apologize For Apologetics?, Steven T. Densley Jr.

Interpreter: A Journal of Latter-day Saint Faith and Scholarship

An analysis of the history, scope, and effectiveness of Mormon apologetics is long overdue. Unfortunately, Perspectives on Mormon T heology: Apologetics falls short of providing an in-depth analysis of the f ield and instead provides a very limited history, very little discussion of the scope of Mormon apologetics, and little discussion of the impact of Mormon apologists on Mormon thought. Furthermore, no attempt is made to discuss how apologetics has affected the arguments of critics of Mormonism. While a few articles do approach apologetics in a positive way, the work is largely critical of the activity of defending the Church …

Full Issue

Interpreter: A Journal of Latter-day Saint Faith and Scholarship

No abstract provided.

Innovation Among Different Classes Of Software Development Organizations, James Gaskin, Nicholas Berente, Kalle Lyytinen, Gregory Rose

Faculty Publications

Software development organizations (SDOs) innovate in diverse ways. In this paper, based on an extensive review of innovation typologies, we develop a theory‐driven typology of SDO innovator classes. We theorize about the driving forces behind these classes, with specific attention given to knowledge‐based dispositions that relate to the SDO's knowledge‐based competencies in technology appropriation, technology generation, and network intensity within ecological niches. Through a survey of 136 SDOs, which adopted Internet technologies during 1995‐2006, we empirically verify that these classes also determine different ways that SDOs innovate around software services they provide to their clients. Our findings suggest that the …