Digital Commons Network^™

Fine Ash-Bearing Particles As A Major Aerosol Component In Biomass Burning Smoke, Kouji Adachi, Jack E. Dibb, Eric Scheuer, Joseph M. Katich, Joshua P. Schwarz, Anne E. Perring, Braden Mediavilla, Hongyu Guo, Pedro Campuzano-Jost, Jose L. Jimenez, James Crawford, Amber J. Soja, Naga Oshima, Mizuo Kajino, Takeshi Kinase, Lawrence Kleinman, Arthur J. Sedlacek Iii, Robert J. Yokelson, Peter R. Buseck

Faculty Publications

Biomass burning (BB) events are occurring globally with increasing frequency, and their emissions are having more impacts on human health and climate. Large ash particles are recognized as a BB product with major influences on soil and water environments. However, fine-ash particles, which have diameters smaller than several microns and characteristic morphologies and compositions (mainly Ca and Mg carbonates), have not yet been explicitly considered as a major BB aerosol component either in field observations or climate models. This study measured BB aerosol samples using transmission electron microscopy (TEM) and ion chromatography during the Fire Influence on Regional to Global …

Fine Ash-Bearing Particles As A Major Aerosol Component In Biomass Burning Smoke, Kouji Adachi, Jack E. Dibb, Eric Scheuer, Joseph M. Katich, Joshua P. Schwarz, Anne E. Perring, Braden Mediavilla, Hongyu Guo, Pedro Campuzano-Jost, Jose L. Jimenez, James Crawford, Amber J. Soja, Naga Oshima, Mizuo Kajino, Takeshi Kinase, Lawrence Kleinman, Arthur J. Sedlacek Iii, Robert J. Yokelson, Peter R. Buseck

Faculty Publications

Biomass burning (BB) events are occurring globally with increasing frequency, and their emissions are having more impacts on human health and climate. Large ash particles are recognized as a BB product with major influences on soil and water environments. However, fine-ash particles, which have diameters smaller than several microns and characteristic morphologies and compositions (mainly Ca and Mg carbonates), have not yet been explicitly considered as a major BB aerosol component either in field observations or climate models. This study measured BB aerosol samples using transmission electron microscopy (TEM) and ion chromatography during the Fire Influence on Regional to Global …

Evolutionary Analyses Of Visual Opsin Genes In Frogs And Toads: Diversity, Duplication, And Positive Selection, Ryan K. Schott, Leah Perez, Matthew Kwiatkowski, Vance Imhoff, Jennifer M. Gumm

Faculty Publications

Among major vertebrate groups, anurans (frogs and toads) are understudied with regard to their visual systems, and little is known about variation among species that differ in ecology. We sampled North American anurans representing diverse evolutionary and life histories that likely possess visual systems adapted to meet different ecological needs. Using standard molecular techniques, visual opsin genes, which encode the protein component of visual pigments, were obtained from anuran retinas. Additionally, we extracted the visual opsins from publicly available genome and transcriptome assemblies, further increasing the phylogenetic and ecological diversity of our dataset to 33 species in total. We found …

Future Orientation Among Children Affected By Parental Hiv In China: An Exploratory Analysis Of Complex Interactions, Heather L. Mcdaniel, Sayward E. Harrison, Amanda J. Fairchild, Xiaoming Li Ph.D.

Faculty Publications

We utilized an exploratory analytic approach to examine predictors of children's future beliefs, an internal asset associated with resilience among children affected by HIV, with emphasis on complex interactions among multisystem factors. Children (N = 1221) affected by parental HIV in China reported on psychosocial functioning, as well as internal, familial, and community resilience assets. Exploratory data analysis was conducted using a binary segmentation program. Six binary splits on predictors accounted for 22.78% of the variance in future expectation, suggesting interactions between children's perceived control of their future, loneliness, caregiver trust, and social support. Four binary splits accounted for …

Estimation Of The Global Prevalence Of Dementia In 2019 And Forecasted Prevalence In 2050: An Analysis For The Global Burden Of Disease Study 2019, Emma Nichols, Jaimie D. Steinmetz, Stein Emil Vollset, Kai Fukutaki, Julian Chalek, Ismaeel Yunusa Ph. D., Et Al.

Faculty Publications

Background

Methods

Chronic Background Radiation Correlates With Sperm Swimming Endurance In Bank Voles From Chernobyl, Kati Kivisaari, Sara Calhim, Zbyszek Boratyríski, Timothy Mousseau, Anders P. Møller, Tapio Mappes

Faculty Publications

Sperm quantity and quality are key features explaining intra- and interspecific variation in male reproductive success. Spermatogenesis is sensitive to ionizing radiation and laboratory studies investigating acute effects of ionizing radiation have indeed found negative effects of radiation on sperm quantity and quality. In nature, levels of natural background radiation vary dramatically, and chronic effects of low-level background radiation exposure on spermatogenesis are poorly understood. The Chernobyl region offers a unique research opportunity for investigating effects of chronic low-level ionizing radiation on reproductive properties of wild organisms. We captured male bank voles (Myodes glareolus) from 24 locations in the Chernobyl …

Distributed Matrix Tiling Using A Hypergraph Labeling Formulation, Avah Banerjee, Maxwell Reeser, Guoli Ding

Faculty Publications

Partitioning large matrices is an important problem in distributed linear algebra computing, used in ML among others. Briefly, our goal is to perform a sequence of matrix algebra operations in a distributed manner on these large matrices. However, not all partitioning schemes work well with different matrix algebra operations and their implementations (algorithms). This is a type of data tiling problem. In this paper we consider a data tiling problem using hypergraphs. We prove some hardness results and give a theoretical characterization of its complexity on random instances. Additionally we develop a greedy algorithm and experimentally show its efficacy.

Investigation Of Metastable Low Dimensional Halometallates, Navindra Keerthisinghe, Matthew S. Christian, Anna A. Berseneva, Gregory Morrison, Vladislav V. Klepov, Mark D. Smith, Hans Conrad Zur Loye

Faculty Publications

The solvothermal synthesis, structure determination and optical characterization of five new metastable halometallate compounds, [1,10-phenH][Pb_3.5I₈] (1), [1,10-phenH₂][Pb₅I₁₂]·(H₂O) (2), [1,10-phen][Pb₂I₄] (3), [1,10-phen]₂[Pb₅Br₁₀] (4) and [1,10-phenH][SbI₄]·(H₂O) (5), are reported. The materials exhibit rich structural diversity and exhibit structural dimensionalities that include 1D chains, 2D sheets and 3D frameworks. The optical spectra of these materials are consistent with bandgaps ranging from 2.70 to 3.44 eV. We show …

Cardiac Startle Response And Clinical Outcomes In Preschool Children With Fragile X Syndrome And Autism Spectrum Disorder, Jordan Ezell, Abigail L. Hogan Phd, Elizabeth A. Will Ph.D., Bcba, Kayla Smith, Jane E. Roberts

Faculty Publications

Objective: Poor physiological regulation in response to threat is linked to multiple negative developmental outcomes including anxiety, which is highly prevalent and impairing in young children with neurodevelopmental disabilities like fragile X syndrome (FXS) and autism spectrum disorder (ASD). The present study contrasted cardiac startle response in pre-school-aged children with FXS, with and without ASD, to children with non-syndromic ASD (nsASD) and neurotypical controls (NT). The relationship of cardiac startle to non-verbal mental age (NVMA), ASD severity, and parent-reported anxiety was also examined.

Method: Four age-matched groups of pre-school children participated including those with FXS without ASD (FXS-Only, n = …

Postseptic Cognitive Impairment And Expression Of Apoe In Peripheral Blood: The Cognition After Sepsis (Cass) Observational Pilot Study, Samuel M. Brown, Sarah J. Beesley, Chris Stubben, Emily L. Wilson, Angela P. Presson, Colin Grissom, Colin Maguire, Matthew T. Rondina, Ramona O. Hopkins

Faculty Publications

Background: Cognitive impairment after sepsis is an important clinical problem. Determinants of postseptic cognitive impairment are not well understood. We thus undertook a systems biology approach to exploring a possible role for apolipoprotein E (APOE) in postseptic cognitive impairment.

Design: Prospective, observational cohort. Setting: Intermountain Medical Center, a tertiary referral center in Utah.

Patients/Participants: Patients with sepsis admitted to study intensive care units. Interventions: None.

Methods: We obtained peripheral blood for deep sequencing of RNA and followed up survivors at 6 months with a battery of cognitive instruments. We defined cognitive impairment based on the 6-month Hayling test of executive …

Assessing Reproducibility Of Inherited Variants Detected With Short-Read Whole Genome Sequencing, Bohu Pan, Luyao Ren, Vitor Onuchic, Meijian Guan, Rebecca Kusko, Steve Bruinsma, Len Trigg, Andreas Scherer, Baitang Ning, Chaoyang Zhang, Christine Glidewell-Kenney, Chunlin Xiao, Eric Donaldson, Fritz J. Sedlazeck, Gary Schroth, Gokhan Yavas, Haiying Grunenwald, Haodong Chen, Heather Meinholz, Joe Meehan, Jing Wang, Jingcheng Yang, Jonathan Foox, Jun Shang, Kelci Miclaus, Lianhua Dong, Leming Shi, Marghoob Mohiyuddin, Mehdi Pirooznia, Ping Gong, Rooz Golshani, Russ Wolfinger, Samir Lababidi, Sayed Mohammed Ebrahim Sahraeian, Steve Sherry, Tao Han, Tieliu Shi, Wanwan Hou, Weigong Ge, Wen Zou, Wenjing Guo, Wenjun Bao, Wenzhong Xiao, Xiaohui Fan, Yoichi Gondo, Ying Yu, Yongmei Zhao, Zhenqiang Su, Zhichao Liu, Weida Tong, Wenming Xiao, Justin M. Zook, Yuanting Zeng, Huixiao Hong

Faculty Publications

Background: Reproducible detection of inherited variants with whole genome sequencing (WGS) is vital for the implementation of precision medicine and is a complicated process in which each step affects variant call quality. Systematically assessing reproducibility of inherited variants with WGS and impact of each step in the process is needed for understanding and improving quality of inherited variants from WGS.

Results: To dissect the impact of factors involved in detection of inherited variants with WGS, we sequence triplicates of eight DNA samples representing two populations on three short-read sequencing platforms using three library kits in six labs and …

The Renewal Workshop: Consumer Considerations In A Global Supply Chain, Aparna Sundar, Wendy G. Pothier, Bruce Pfeiffer, Leyi Lei

Faculty Publications

In responding to the international need for a circular economy, The Renewal Workshop (TRW) expanded its operations by opening a second factory in Amsterdam, The Netherlands in 2019. Much of the success of TRW, since its inception in Oregon in 2016, was due to its innovation in supply chain process. TRW incorporated novel solutions of renewing damaged apparel and upcycling overstock products, and consulted brands on ways to design for deconstruction. As the effectiveness of TRW becomes evident and demand grows internationally, it is facing some unexpected challenges. Students will need to reconsider positioning and communication strategy of The Renewal …

Dark Shadows: Monster Culture On Daytime Television, Bill Svitavsky

Faculty Publications

The soap opera Dark Shadows (ABC, 1966–71) gradually took on elements from horror movies, including an immensely popular vampire character. This article examines how the mixing of genre elements took place and how it changed the show’s audience and messaging.

Brand Love And Brand Addiction And Their Effects On Consumers’ Negative Behaviors, Muhammad Junaid, Marc Fetscherin, Khalid Hussain, Fujun Hou

Faculty Publications

Purpose: This study investigates the relationship between brand love and brand addiction and their effects on consumers' negative behaviors with respect to excessive spending, trash-talking, and the feeling of anxiety.

Methodology: A sample of 352 young fashion brand consumers responded to a structured questionnaire. The resulting data were analyzed with structural equation modeling in MPlus.

Findings: While brand love and brand addiction are related concepts, their effects on negative consumer behaviors differ. In the presence of brand addiction as a mediator of brand love, brand addiction has a significant effect on the three negative behaviors, and we observe a suppression …

Uprooting Roe, B. Jessie Hill, Mae Kuykendall

Faculty Publications

The U.S. Supreme Court is likely poised to overturn Roe v. Wade in a matter of months. Yet, the roots of Roe run both wide and deep, and to uproot Roe would be to uproot the Constitution’s promise of gender equality in a radical way. Just as the Supreme Court’s jurisprudence of reproductive liberty freed people with reproductive capacity from having their destinies and status tied to their biology, an uprooting of Roe and its companion principles will restore the iron rules of gender difference and return women to their common-law status as lacking self-ownership and equal citizenship.

Cognitive Decline And The Workplace, Sharona Hoffman

Faculty Publications

Cognitive decline will increasingly become a workplace concern because of three intersecting trends. First, the American population is aging. In 2019, 16.5 percent of the population, or fifty-four million people, were age 65 and over, and the number is expected to increase to seventy-eight million by 2025. Dementia is not uncommon among older adults, and by the age of eighty-five, between twenty-five and fifty percent of individuals suffer from this condition. Second, individuals are postponing retirement and prolonging their working lives. For example, about a quarter of physicians are over sixty-five, as are fifteen percent of attorneys. The average age …

Electrophysiological Responses To Conspecific Odorants In Xenopus Laevis Show Potential For Chemical Signaling, Heather J. Rhodes, Melanie Amo

Faculty Publications

No abstract provided.

Overview Of Multi-Factor Prediction Using Deep Neural Networks, Machine Learning, And Their Open-Source Software, Richard S. Segall

Faculty Publications

This chapter first provides an overview with examples of what neural networks (NN), machine learning (ML), and artificial intelligence (AI) are and their applications in biomedical and business situations. The characteristics of 29 types of neural networks are provided including their distinctive graphical illustrations. A survey of current open-source software (OSS) for neural networks, neural network software available for free trail download for limited time use, and open-source software (OSS) for machine learning (ML) are provided. Characteristics of artificial intelligence (AI) technologies for machine learning available as open source are discussed. Illustrations of applications of neural networks, machine learning, and …

Kinetics And Connectivity Properties Of Parvalbumin- And Somatostatin-Positive Inhibition In Layer 2/3 Medial Entorhinal Cortex, Fernando R. Fernandez, Guillem Via, Carmen C. Canavier, John A. White

Faculty Publications

No abstract provided.

Biological And Geochemical Proxies In Sediment Cores Reveal Shifts In Marine Predator Population Dynamics Relative To Historic Anthropogenic Exploitation And Recent Climate Change At South Georgia Island Sub-Antarctic, Allyson K. Kristan, Kanchan Maiti, Kelton W. Mcmahon, Michael A. Dance, Michael J. Polito

Faculty Publications

Historical climate change and human exploitation are thought to have played important roles in shaping population dynamics of sub-Antarctic marine predators, such as king penguins (Aptenodytes patagonicus) and Antarctic fur seals (Arctocephalus gazelle). For example, Antarctic fur seals on the sub-Antarctic South Georgia Island were nearly hunted to extinction by humans before the early 1900s. However, records of occupation history pre- and post-anthropogenic stress are often sporadic and challenging to interpret. In this study, we investigated paleoecological proxies in sediment cores from South Georgia Island to examine past marine predator population dynamics in the face of climate change and exploitation …

Survey Of Applications Of Neural Networks And Machine Learning To Covid-19 Predictions, Richard S. Segall

Faculty Publications

The purpose of this chapter is to illustrate how artificial intelligence (AI) technologies have been used for COVID-19 detection and analysis. Specifically, the use of neural networks (NN) and machine learning (ML) are described along with which countries are creating these techniques and how these are being used for COVID-19 diagnosis and detection. Illustrations of multi-layer convolutional neural networks (CNN), recurrent neural networks (RNN), and deep neural networks (DNN) are provided to show how these are used for COVID-19 detection and prediction. A summary of big data analytics for COVID-19 and some available COVID-19 open-source data sets and repositories and …

Parent Zero, Jessica Feinberg

Faculty Publications

When a child is born, the law makes a critical determination regarding who will be recognized as the child’s legal parent(s). This determination carries immense importance both for children and for individuals who are, or seek to be, identified as legal parents. Essential rights, protections, and obligations attach to a legally recognized parent-child relationship, and in the vast majority of cases an individual who is recognized at birth as a child’s legal parent will retain that status permanently. The determination of the child’s first legal parent historically has been a straightforward one, and this largely remains true today outside of …

Constitutional Authority, Common Resources, And The Climate, Anthony L. Moffa

Faculty Publications

This work sets out to re-examine and challenge the history of the property clause with an eye towards increased congressional reliance on it in the face of daunting threats to our natural environment. No one could seriously question the primary motivations of the Framers, but that does not foreclose the importance of searching for secondary motivations that deepen our understanding of arguably the Constitution’s most explicitly environmental provision. Eugene Gaetke’s work in the 1980’s and Peter Appel’s work twenty years later laid the groundwork for the argument here by pushing back on the originalist argument for a narrow interpretation of …

Arctic Navigation And Climate Change: Projections From Science For The Law Of The Sea, Charles H. Norchi, Amanda H. Lynch

Faculty Publications

Above latitude 66°33’44” north of the Equator lies the Arctic Circle. The center of the Circle is water, mostly covered by ice. The smallest of the world’s five oceans, it has been paddled, sailed, and traversed over centu-ries—to access its abundant resources, to reach the magnetic north pole, to discover routes connecting the Atlantic and Pacific Oceans, to expand sci-entific knowledge, to live, to discover, and to conquer. Peoples indigenous to the Arctic have long thrived in the lands and near-shore environments that bound the ocean.

By the age of European exploration of the Arctic, the 1648 Peace of Westphalia …

Too Fast? Too Slow? A Novel Approach For Identifying Extreme Response Behavior In Online Surveys, Manasvi Kumar, Joseph S. Valacich, Jeffrey L. Jenkins, David Kim

Faculty Publications

Some participants of online surveys engage in extreme answering behavior while generating responses (i.e., they respond too fast or too slow) relative to population norms. Here, we demonstrate how participants’ navigation behaviors can be used to potentially identify such responses. We administered an online survey where students (who were earlier instructed to complete a task) report lenience scores towards non-appropriate behavior while completing the task. We draw on cognitive dissonance theory to posit that failure to follow instruction predicts lenience scores. We then created different datasets by excluding data from participants flagged by our metrics and generated predictive models. We …

Factors Related To Species Richness, Endemism, And Conservation Status Of The Herpetofauna (Amphibia And Reptilia) Of Mexican States, Geoffrey R. Smith, Julio A. Lemos-Espinal

Faculty Publications

No abstract provided.

Food, Freedom, Fairness, And The Family Farm, Robin M. Rotman, Sophie Mendelson

Faculty Publications

The concept of the “family farm” holds powerful sway within the American narrative, embodying both nostalgia for an imagined past and anxiety for a future perceived to be under threat. Since the founding of the United States, this cultural ideal has been invoked in support of a rosy vision of agrarian democracy while obscuring the ways in which the U.S. Department of Agriculture’s codified definition of “family farm” has unfairly aggregated advantages for the benefit of a particular kind of family (nuclear) and farmer (white, male, straight). At the same time, consumers are misled by an under-interrogated conflation of family …

Structure Of A Monomeric Photosystem Ii Core Complex From A Cyanobacterium Acclimated To Far-Red Light Reveals The Functions Of Chlorophylls D And F, Christopher J. Gisriel, Gaozhong Shen, Ming-Yang Ho, Vasily Kurashov, David A. Flesher

Faculty Publications

Far-red light (FRL) photoacclimation in cyanobacteria provides a selective growth advantage for some terrestrial cyanobacteria by expanding the range of photosynthetically active radiation to include far-red/near-infrared light (700-800 nm). During this photoacclimation process, photosystem II (PSII), the water:plastoquinone photooxidoreductase involved in oxygenic photosynthesis, is modified. The resulting FRL-PSII is comprised of FRL-specific core subunits and binds chlorophyll (Chl) d and Chl f molecules in place of several of the Chl a molecules found when cells are grown in visible light. These new Chls effectively lower the energy canonically thought to define the "red limit" for light required to drive photochemical …

The Parastagonospora Nodorum Necrotrophic Effector Sntox5 Targets The Wheat Gene Snn5 And Facilitates Entry Into The Leaf Mesophyll, Gayan K. Kariyawasam, Jonathan K. Richards, Nathan A. Wyatt, Katherine L.D. Running, Steven S. Xu, Zhaohui Liu, Pawel Borowicz, Justin D. Faris, Timothy L. Friesen

Faculty Publications

Parastagonospora nodorum is an economically important necrotrophic fungal pathogen of wheat. Parastagonospora nodorum secretes necrotrophic effectors that target wheat susceptibility genes to induce programmed cell death (PCD). In this study, we cloned and functionally validated SnTox5 and characterized its role in pathogenesis. We used whole genome sequencing, genome-wide association study (GWAS) mapping, CRISPR-Cas9-based gene disruption, gain-of-function transformation, quantitative trait locus (QTL) analysis, haplotype and isoform analysis, protein modeling, quantitative PCR, and laser confocal microscopy to validate SnTox5 and functionally characterize SnTox5. SnTox5 is a mature 16.26 kDa protein with high structural similarity to SnTox3. Wild-type and mutant P. nodorum strains …

A New Detection Of The Invasive Mexican Rice Borer (Lepidoptera: Crambidae) From Georgia In The United States Based On Morphological And Molecular Data, Ilgoo Kang, Blake Wilson, Blake Carter, Rodrigo Diaz

Faculty Publications

The Mexican rice borer, Eoreuma loftini (Dyar), is an invasive herbivore that attacks many gramineous host plants. The species is an economic pest of several grass crops in North America including sugarcane (Saccharum spp.), rice (Oryza sativa), corn (Zea mays), and sorghum (Sorghum bicolor). The species was first detected in the United States in 1980 and has since expanded its range eastward along the Gulf Coast reaching Louisiana in 2008. A disjointed introduction was detected in Florida in 2012, though range expansion of this population within the state has been limited. Most recently, a separate introduction was detected along the …