Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Utah State University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 151 - 180 of 594

Full-Text Articles in Entire DC Network

The Moral Challenges Of Opening Up Schools During The Pandemic, Rachel Robinson-Greene Jul 2020

The Moral Challenges Of Opening Up Schools During The Pandemic, Rachel Robinson-Greene

Languages, Philosophy, and Communication Studies Faculty Publications

As we inch ever closer to August, the question of if and how schools will open in the fall is increasingly pressing on everyone’s minds. Many decisions related to COVID-19 are presented as morally controversial when they really shouldn’t be. The issue of opening the schools, on the other hand, is complex. No matter what decision is made, some individuals and groups will experience significant hardship.


Promoting Healthy Decision-Making Via Natural Environment Exposure: Initial Evidence And Future Directions, Meredith S. Berry, Meredith A. Repke, Alexander L. Metcalf, Kerry Jordan Jul 2020

Promoting Healthy Decision-Making Via Natural Environment Exposure: Initial Evidence And Future Directions, Meredith S. Berry, Meredith A. Repke, Alexander L. Metcalf, Kerry Jordan

Psychology Faculty Publications

Research within psychology and other disciplines has shown that exposure to natural environments holds extensive physiological and psychological benefits. Adding to the health and cognitive benefits of natural environments, evidence suggests that exposure to nature also promotes healthy human decision-making. Unhealthy decision-making (e.g., smoking, non-medical prescription opioid misuse) and disorders associated with lack of impulse control [e.g., tobacco use, opioid use disorder (OUD)], contribute to millions of preventable deaths annually (i.e., 6 million people die each year of tobacco-related illness worldwide, deaths from opioids from 2002 to 2017 have more than quadrupled in the United States alone). Impulsive and unhealthy …


No More “Social Distancing” But Practice Physical Separation, Debasree Das Gupta, David W. S. Wong Jun 2020

No More “Social Distancing” But Practice Physical Separation, Debasree Das Gupta, David W. S. Wong

Kinesiology and Health Science Faculty Publications

Though not a new term, “social distancing” exploded onto the global stage as an expression to publicize the only means currently available to control the transmission of COVID-19. This term is increasingly being adopted and translated into the vernacular to inform and guide public behavior in most, if not all, countries around the world. However, any effective global response requires direct and unambiguous communication and sharing of ideas across communities with different cultural backgrounds as well as between researchers and responders across the disciplinary spectrum. Unfortunately, social distancing is a misnomer. The current use of social distancing – separating ourselves …


Investigating The Dynamics Of Elk Population Size And Body Mass In A Seasonal Environment Using A Mechanistic Integral Projection Model, Shelly Lachish, Ellen E. Brandell, Meggan E. Craft, Andrew P. Dobson, Peter J. Hudson, Daniel R. Macnulty, Tim Coulson Jun 2020

Investigating The Dynamics Of Elk Population Size And Body Mass In A Seasonal Environment Using A Mechanistic Integral Projection Model, Shelly Lachish, Ellen E. Brandell, Meggan E. Craft, Andrew P. Dobson, Peter J. Hudson, Daniel R. Macnulty, Tim Coulson

Wildland Resources Faculty Publications

Environmentally mediated changes in body size often underlie population responses to environmental change, yet this is not a universal phenomenon. Understanding when phenotypic change underlies population responses to environmental change is important for obtaining insights and robust predictions of population dynamics in a changing world. We develop a dynamic integral projection model that mechanistically links environmental conditions to demographic rates and phenotypic traits (body size) via changes in resource availability and individual energetics. We apply the model to the northern Yellowstone elk population and explore population responses to changing patterns of seasonality, incorporating the interdependence of growth, demography, and density-dependent …


Choice‐Based Reminder Cues: Findings From An Mhealth Study To Improve Tuberculosis (Tb) Treatment Adherence Among The Urban Poor In India, Debasree Das Gupta, Amit Patel, Deepak Saxena, Naoru Koizumi, Poonam Trivedi, Krupali Patel, Devang Raval, Andrew King, Kerianne Chandler Jun 2020

Choice‐Based Reminder Cues: Findings From An Mhealth Study To Improve Tuberculosis (Tb) Treatment Adherence Among The Urban Poor In India, Debasree Das Gupta, Amit Patel, Deepak Saxena, Naoru Koizumi, Poonam Trivedi, Krupali Patel, Devang Raval, Andrew King, Kerianne Chandler

Kinesiology and Health Science Faculty Publications

Poor treatment outcomes due to nonadherence and consequent high levels of drug resistance continue to challenge efforts to combat tuberculosis (TB) in India. Mobile health‐ or mHealth‐based reminder cues have been considered in multiple health behavior modification interventions, including TB treatment nonadherence. We conducted a quasi‐experimental study in Ahmedabad, India, to examine the effectiveness of mHealth‐based reminder cues customized to meet diverse patient needs. Results from this experiment indicate that the potential of customized mHealth reminder cues may remain unrealized unless addressed in conjunction with the multifaceted drivers of TB treatment nonadherence. The perspective we present here has broad relevance …


The Quandary Of Contact Tracing Tech, Rachel Robinson-Greene May 2020

The Quandary Of Contact Tracing Tech, Rachel Robinson-Greene

Languages, Philosophy, and Communication Studies Faculty Publications

All over the country, states are re-opening their economies. This is happening in defiance of recommendations from experts in infectious disease, which suggest that states only re-open after they have seen a fourteen-day decline in cases, have capacities to contact trace, have sufficient personal protective equipment for healthcare workers, and have sufficient testing capabilities to identify hotspots and deal with problems when they arise.


Type I Interferon Underlies Severe Disease Associated With Junín Virus Infection In Mice, Brady T. Hickerson, Eric J. Sefing, Kevin W. Bailey, Arnaud J. Van Wettere, Manuel L. Penichet, Brian B. Gowen May 2020

Type I Interferon Underlies Severe Disease Associated With Junín Virus Infection In Mice, Brady T. Hickerson, Eric J. Sefing, Kevin W. Bailey, Arnaud J. Van Wettere, Manuel L. Penichet, Brian B. Gowen

Animal, Dairy, and Veterinary Science Student Research

Junín virus (JUNV) is one of five New World mammarenaviruses (NWMs) that causes fatal hemorrhagic disease in humans and is the etiological agent of Argentine hemorrhagic fever (AHF). The pathogenesis underlying AHF is poorly understood; however, a prolonged, elevated interferon-α (IFN-α) response is associated with a negative disease outcome. A feature of all NWMs that cause viral hemorrhagic fever is the use of human transferrin receptor 1 (hTfR1) for cellular entry. Here, we show that mice expressing hTfR1 develop a lethal disease course marked by an increase in serum IFN-α concentration when challenged with JUNV. Further, we provide evidence that …


Development, Characterization, And Application Of Two Reporter-Expressing Recombinant Zika Viruses, Sang-Im Yun, Byung-Hak Song, Michael E. Woolley, Jordan C. Frank, Justin G. Julander, Young-Min Lee May 2020

Development, Characterization, And Application Of Two Reporter-Expressing Recombinant Zika Viruses, Sang-Im Yun, Byung-Hak Song, Michael E. Woolley, Jordan C. Frank, Justin G. Julander, Young-Min Lee

Animal, Dairy, and Veterinary Science Faculty Publications

Zika virus (ZIKV), a mosquito-borne transplacentally transmissible flavivirus, is an enveloped virus with an ~10.8 kb plus-strand RNA genome that can cause neurological disease. To facilitate the identification of potential antivirals, we developed two reporter-expressing ZIKVs, each capable of expressing an enhanced green fluorescent protein or an improved luminescent NanoLuc luciferase. First, a full-length functional ZIKV cDNA clone was engineered as a bacterial artificial chromosome, with each reporter gene under the cap-independent translational control of a cardiovirus-derived internal ribosome entry site inserted downstream of the single open reading frame of the viral genome. Two reporter-expressing ZIKVs were then generated by …


Isolation And Selective Glycosylation Of Antisalmonellal Anthraquinones From The Stem Bark Of Morinda Lucida Benth. (Rubiaceae), Napoleon A. Mfonku, James A. Mbah, Norbert Kodjio, Donatien Gatsing, Jixun Zhan May 2020

Isolation And Selective Glycosylation Of Antisalmonellal Anthraquinones From The Stem Bark Of Morinda Lucida Benth. (Rubiaceae), Napoleon A. Mfonku, James A. Mbah, Norbert Kodjio, Donatien Gatsing, Jixun Zhan

Biological Engineering Faculty Publications

In this work we report the isolation, identification and antibacterial activity of two anthraquinones, 2-hydroxy-1-methoxyanthraquinone (1) and 2,5-dihydroxy-1-methoxy-6-methoxymethylanthraquinone (2), from the stem bark of Morinda lucida. These two natural products were selectively converted into two new glycosylated derivatives, 2-hydroxy-1-methoxyanthraquinone-4′-O-methyl-2-O-β-d-glucopyranoside (3) and 2,5-dihydroxy-1-methoxy-6-methoxymethylanthraquinone-4′-O-methyl-2-O-β-d-glucopyranoside (4) by the filamentous fungus Beauveria bassiana ATCC 7159. Structure elucidation was accomplished based on the 1D and 2D NMR, IR and mass spectra. The glycosylated compounds 3 and 4 showed higher in vitro antibacterial activity against Salmonella enterica subsp. enterica sérovars Typhimurim (MIC of 8 μg/mL each) than the corresponding aglycons 1 and 2 (MIC of …


Disease Ecology And Adaptive Management Of Brucellosis In Greater Yellowstone Elk, Gavin G. Cotterill May 2020

Disease Ecology And Adaptive Management Of Brucellosis In Greater Yellowstone Elk, Gavin G. Cotterill

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Brucellosis is a bacterial infection that primarily affects livestock and can also be transmitted to humans. In the Greater Yellowstone Ecosystem (GYE), elk (Cervus canadensis) and bison (Bison bison) are habitual carriers of Brucella abortus, which arrived to the region with cattle over a century ago. The disease was eliminated from cattle in the United States through widespread control efforts, but is now periodically transmitted back to cattle on open rangelands where they can come into contact with fetal tissues and fluids from disease-induced abortions that occur among elk during the late winter and spring. …


Human-Wildlife Interactions In Bryce Canyon National Park, Chad H. Wildermuth May 2020

Human-Wildlife Interactions In Bryce Canyon National Park, Chad H. Wildermuth

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Public lands such as National Parks protect some of America’s most spectacular and iconic natural, cultural, and historic landscapes. These lands are managed with a goal of preserving their unique features for the recreational use of the public. Therefore, it is important to understand the effects, if any, that public visitation has on these natural systems. This study investigated human-wildlife interactions in Bryce Canyon National Park (BRCA), Utah in order to better understand factors that lead to human-wildlife conflicts and how the attitudes and perceptions of visitors affect their actions towards wildlife.

Observations of human-wildlife interactions were observed and measured …


Moral Luck, Universalization, And Covid-19, Rachel Robinson-Greene Apr 2020

Moral Luck, Universalization, And Covid-19, Rachel Robinson-Greene

Languages, Philosophy, and Communication Studies Faculty Publications

All over the country, people are making headlines for violating shelter-in-place and stay-at-home orders. Motivations for this behavior are diverse; some fail to recognize the gravity of the situation, some acknowledge that COVID-19 is bad, but doubt that it is a threat to them personally, others, despite a lack of expertise in infectious disease, trust their gut instincts more than they trust the opinions of experts. Some people who defiantly resist orders insist that they are doing so to protect their constitutional rights. People are hosting parties, attending church services, and engaging in life-as-usual activity. Those who have been sheltering …


Faculty Senate Executive Committee Agenda, April 13, 2020, Utah State University Apr 2020

Faculty Senate Executive Committee Agenda, April 13, 2020, Utah State University

Faculty Senate & Faculty Senate Executive Committee

Call to Order

  • Approval of Minutes - March 16, 2020

University Business

Information

  • EPC Monthly Report - April 2, 2020

Reports

  • Committee on Committees Annual Report
  • Calendar Committee Annual Report
  • Recruitment & Retention Annual Report

Old Business

  • 404 Student Involvement in Faculty Searches

New Business

  • Faculty Senate President Elect


Theoretical Risk Of Genetic Reassortment Should Not Impede Development Of Live, Attenuated Rift Valley Fever (Rvf) Vaccines Commentary On The Draft Who Rvf Target Product Profile, Thomas P. Monath, Jeroen Kortekaas, Douglas M. Watts, Rebecca C. Christofferson, Angelle Desiree Labeaud, Brian B. Gowen, Clarence J. Peters, Darci R. Smith, Robert Swanepoel, John C. Morrill, Thomas G. Ksiazek, Phillip R. Pittman, Brian H. Bird, George Bettinger Apr 2020

Theoretical Risk Of Genetic Reassortment Should Not Impede Development Of Live, Attenuated Rift Valley Fever (Rvf) Vaccines Commentary On The Draft Who Rvf Target Product Profile, Thomas P. Monath, Jeroen Kortekaas, Douglas M. Watts, Rebecca C. Christofferson, Angelle Desiree Labeaud, Brian B. Gowen, Clarence J. Peters, Darci R. Smith, Robert Swanepoel, John C. Morrill, Thomas G. Ksiazek, Phillip R. Pittman, Brian H. Bird, George Bettinger

Animal, Dairy, and Veterinary Science Faculty Publications

In November 2019, The World Health Organization (WHO) issued a draft set of Target Product Profiles (TPPs) describing optimal and minimally acceptable targets for vaccines against Rift Valley fever (RVF), a Phlebovirus with a three segmented genome, in both humans and ruminants. The TPPs contained rigid requirements to protect against genomic reassortment of live, attenuated vaccines (LAVs) with wild-type RVF virus (RVFV), which place undue constraints on development and regulatory approval of LAVs. We review the current LAVs in use and in development, and conclude that there is no evidence that reassortment between LAVs and wild-type RVFV has occurred during …


Rethinking Behavior - Spring 2020, Midwest Symposium For Leadership In Behavior Disorders Apr 2020

Rethinking Behavior - Spring 2020, Midwest Symposium For Leadership In Behavior Disorders

ReThinking Behavior Magazine

A magazine for professionals serving children and youth with behavioral needs.

Spring 2020, Volume 3, Issue 3


Faculty Senate Executive Committee Minutes, March 16, 2020, Utah State University Mar 2020

Faculty Senate Executive Committee Minutes, March 16, 2020, Utah State University

Faculty Senate & Faculty Senate Executive Committee

Call to Order

  • Approval of Minutes - February 18, 2020

University Business

  • COVID-19 Response and task force

Information

  • EPC Monthly Report - February 27, 2020
  • Working on timeline/deadline for curriculum changes and plan to link to Curriculog
  • Discussion about substantive vs. non-substantive curriculum changes

Reports

  • Budget and Faculty Welfare Annual Report
  • Parking & Transportation & GHG Annual Report

Old Business

  • 407 Major Revisions
  • 403.3 Professional Responsibility: Standards of Conduct

New Business

  • 404 Student Involvement in Faculty Searches
  • Call for Nominations for a New Faculty Senate President-Elect
  • Next meeting could be held in Library 154 with small groups.


Emerging Priorities For Microbiome Research, Chad M. Cullen, Kawalpreet K. Aneja, Sinem Beyhan, Clara E. Cho, Stephen Woloszynek, Matteo Convertino, Sophie J. Mccoy, Yanyan Zhang, Matthew Z. Anderson, David Alvarez-Ponce, Ekaterina Smirnova, Lisa Karstens, Pieter C. Dorrestein, Hongzhe Li, Ananya Sen Gupta, Et Al. Feb 2020

Emerging Priorities For Microbiome Research, Chad M. Cullen, Kawalpreet K. Aneja, Sinem Beyhan, Clara E. Cho, Stephen Woloszynek, Matteo Convertino, Sophie J. Mccoy, Yanyan Zhang, Matthew Z. Anderson, David Alvarez-Ponce, Ekaterina Smirnova, Lisa Karstens, Pieter C. Dorrestein, Hongzhe Li, Ananya Sen Gupta, Et Al.

Nutrition, Dietetics, and Food Sciences Faculty Publications

Microbiome research has increased dramatically in recent years, driven by advances in technology and significant reductions in the cost of analysis. Such research has unlocked a wealth of data, which has yielded tremendous insight into the nature of the microbial communities, including their interactions and effects, both within a host and in an external environment as part of an ecological community. Understanding the role of microbiota, including their dynamic interactions with their hosts and other microbes, can enable the engineering of new diagnostic techniques and interventional strategies that can be used in a diverse spectrum of fields, spanning from ecology …


Invasive Vegetation Affects Amphibian Skin Microbiota And Body Condition, Obed HernáNdez-GóMez, Allison Q. Byrne, Alex R. Gunderson, Thomas S. Jenkinson, Clay F. Noss, Andrew P. Rothstein, Molly C. Womack, Erica B. Rosenblum Feb 2020

Invasive Vegetation Affects Amphibian Skin Microbiota And Body Condition, Obed HernáNdez-GóMez, Allison Q. Byrne, Alex R. Gunderson, Thomas S. Jenkinson, Clay F. Noss, Andrew P. Rothstein, Molly C. Womack, Erica B. Rosenblum

Biology Faculty Publications

Invasive plants are major drivers of habitat modification and the scale of their impact is increasing globally as anthropogenic activities facilitate their spread. In California, an invasive plant genus of great concern is Eucalyptus. Eucalyptus leaves can alter soil chemistry and negatively affect underground macro- and microbial communities. Amphibians serve as excellent models to evaluate the effect of Eucalyptus invasion on ground-dwelling species as they predate on soil arthropods and incorporate soil microbes into their microbiotas. The skin microbiota is particularly important to amphibian health, suggesting that invasive plant species could ultimately affect amphibian populations. To investigate the potential for …


Can Farmers And Bats Co-Exist? Farmer Attitudes, Knowledge, And Experiences With Bats In Belize, Hannah G. Shapiro, Adam S. Willcox, Mallory Tate, Emma V. Willcox Jan 2020

Can Farmers And Bats Co-Exist? Farmer Attitudes, Knowledge, And Experiences With Bats In Belize, Hannah G. Shapiro, Adam S. Willcox, Mallory Tate, Emma V. Willcox

Human–Wildlife Interactions

Bats (Chiroptera) are often viewed negatively by the public. Negative public perceptions of bats may hinder efforts to conserve declining populations. In Belize, the presence of vampire bats (Desmodus rotundus and Diphylla ecaudata) exacerbates the potential for conflicts with humans because of the increased rabies transmission risks. To mitigate these risks, the Belize government provides farmers with assistance to trap and remove vampire bats. In June 2018, we surveyed farmers (n = 44) in and adjacent to the Vaca Forest Reserve in Belize to learn more about their attitudes, knowledge, and experiences with bats. This information may …


Humans, Wildlife, And Our Environment: One Health Is The Common Link, Terry A. Messmer Jan 2020

Humans, Wildlife, And Our Environment: One Health Is The Common Link, Terry A. Messmer

Human–Wildlife Interactions

One Health has become more important in recent years because interactions between people, animals, plants, and our environment have dramatically changed. This Back Page article discusses One Health during the COVID-19 pandemic.


Serum Chemistry Values In Wild Black Vultures In Mississippi, Usa, Fred L. Cunningham, Sherman W. Jack, Amanda R. Deese, Eric R. Wengert, Kyle Van Why, Carla L. Huston, Scott Lemmons, Richard B. Minnis Jan 2020

Serum Chemistry Values In Wild Black Vultures In Mississippi, Usa, Fred L. Cunningham, Sherman W. Jack, Amanda R. Deese, Eric R. Wengert, Kyle Van Why, Carla L. Huston, Scott Lemmons, Richard B. Minnis

Human–Wildlife Interactions

Vultures (Cathartidae and Accipitridae) play an important role in ecosystem balance by rapidly disposing animal carcasses and thus preventing the potential spread of pathogens. Blood chemistry values provide a means of assessing the health of wildlife and wild animal populations; however, there are significant differences in chemistries among species and when comparing captive and free-living New and Old World vultures. In 2007, we collected blood serum from 30 female and 14 male wild, healthy black vultures (Coragyps atratus) live-trapped by the U.S. Department of Agriculture, Animal and Plant Health Inspection Service, Wildlife Services from a power substation in …


Parsing The Effects Of Demography, Climate And Management On Recurrent Brucellosis Outbreaks In Elk, Gavin C. Cotterill, Paul C. Cross, Jerod A. Merkle, Jared D. Rogerson, Brandon M. Scurlock, Johan T. Du Toit Dec 2019

Parsing The Effects Of Demography, Climate And Management On Recurrent Brucellosis Outbreaks In Elk, Gavin C. Cotterill, Paul C. Cross, Jerod A. Merkle, Jared D. Rogerson, Brandon M. Scurlock, Johan T. Du Toit

Wildland Resources Faculty Publications

  1. Zoonotic pathogens can harm human health and well‐being directly or by impacting livestock. Pathogens that spillover from wildlife can also impair conservation efforts if humans perceive wildlife as pests. Brucellosis, caused by the bacterium Brucella abortus, circulates in elk and bison herds of the Greater Yellowstone Ecosystem and poses a risk to cattle and humans. Our goal was to understand the relative effects of climatic drivers, host demography and management control programmes on disease dynamics.
  2. Using >20 years of serologic, demographic and environmental data on brucellosis in elk, we built stochastic compartmental models to assess the influences of climate forcing, …


Parsing The Effects Of Demography, Climate, And Management On Recurrent Brucellosis Outbreaks In Elk, Gavin C. Cotterill, Paul C. Cross, Jerod A. Merkle, Jared D. Rogerson, Brandon M. Scurlock, Johan T. Du Toit Dec 2019

Parsing The Effects Of Demography, Climate, And Management On Recurrent Brucellosis Outbreaks In Elk, Gavin C. Cotterill, Paul C. Cross, Jerod A. Merkle, Jared D. Rogerson, Brandon M. Scurlock, Johan T. Du Toit

Wildland Resources Faculty Publications

Zoonotic pathogens can harm human health and wellbeing directly or by impacting livestock. Pathogens that spillover from wildlife can also impair conservation efforts if humans perceive wildlife as pests. Brucellosis, caused by the bacterium Brucella abortus, circulates in elk and bison herds of the Greater Yellowstone Ecosystem and poses a risk to cattle and humans. Our goal was to understand the relative effects of climatic drivers, host demography, and management control programs on disease dynamics.

Using > 20 years of serologic, demographic, and environmental data on brucellosis in elk, we built stochastic compartmental models to assess the influences of climate forcing, …


An Alternate And Facile Method For The Synthesis Of Precursors Of 3- And 6- Aminosugar Donors And A One-Pot Glycosylation Approach, Uddav Pandey Dec 2019

An Alternate And Facile Method For The Synthesis Of Precursors Of 3- And 6- Aminosugar Donors And A One-Pot Glycosylation Approach, Uddav Pandey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The synthesis of 3- and 6- aminosugars from the old route requires many synthetic steps and is challenging. An alternative approach is to utilize acid-catalyzed hydrolysis of kanamycin derivatives. The 3-and 6 aminosugar donor was synthesized in just two steps with excellent yield and cost-effective. The acidic hydrolysis of these aminoglycosides provided not only the 3-and 6-aminosugars, but the direct chemical glycosylation of these aminosugars was proven feasible using isopropanol and octanol as the acceptor.


North American Hard Yellow Liver Disease: An Old Problem Readdressed, Bryan L. Stegelmeier, Meredyth Jones, Christopher P. Womack, T Zane Davis, Dale R. Gardner Oct 2019

North American Hard Yellow Liver Disease: An Old Problem Readdressed, Bryan L. Stegelmeier, Meredyth Jones, Christopher P. Womack, T Zane Davis, Dale R. Gardner

Poisonous Plant Research (PPR)

Hard yellow liver disease or fatty cirrhosis periodically affects cattle, sheep, goats, pronghorn antelope (Antilocapra americana) and whitetail deer (Odocoileus virginianus texanus) within several Texas counties in the United States. Clinically it presents as chronic liver disease with progressive hepatic necrosis and fibrosis, icterus and liver failure. The damaged livers are yellow and many have multiple firm, often gritty foci that are scattered throughout all lobes. Early investigations included feeding studies using potential toxic plants, climate and forage studies, infectious disease surveys and various mycotoxin studies and analyses. None have definitively reproduced the disease or identified the inciting …


Investment Of Both Essential Fatty And Amino Acids To Immunity Varies Depending On Reproductive Stage, Taylor V. Pettit, R. John Pettit, Andrew M. Durso, Susannah S. French Oct 2019

Investment Of Both Essential Fatty And Amino Acids To Immunity Varies Depending On Reproductive Stage, Taylor V. Pettit, R. John Pettit, Andrew M. Durso, Susannah S. French

Ecology Center Publications

Trade‐offs among the key life‐history traits of reproduction and immunity have been widely documented. However, the currency in use is not well‐understood. We investigated how reproducing female side‐blotched lizards, Uta stansburiana, allocate lipids versus proteins when given an immune challenge. We tested whether lizards would invest more in reproduction or immunity depending on reproductive stage. Females were given stable isotopes (15N‐leucine and 13C‐1‐palmitic acid), maintained on a regular diet and given either a cutaneous biopsy or a sham biopsy (control). Stable isotopes were monitored and analyzed in feces and uric acid, skin biopsies, eggs, and toe …


Vascular Leak And Hypercytokinemia Associated With Severe Fever With Thrombocytopenia Syndrome Virus Infection In Mice, Jonna B. Westover, Brady T. Hickerson, Arnaud J. Van Wettere, Brett L. Hurst, Jacqueline P. Kurz, Ashley Dagley, Petra Wülfroth, Takashi Komeno, Yousuke Furuta, Thomas Steiner, Brian B. Gowen Sep 2019

Vascular Leak And Hypercytokinemia Associated With Severe Fever With Thrombocytopenia Syndrome Virus Infection In Mice, Jonna B. Westover, Brady T. Hickerson, Arnaud J. Van Wettere, Brett L. Hurst, Jacqueline P. Kurz, Ashley Dagley, Petra Wülfroth, Takashi Komeno, Yousuke Furuta, Thomas Steiner, Brian B. Gowen

Animal, Dairy, and Veterinary Science Faculty Publications

Severe fever with thrombocytopenia syndrome (SFTS) is an emerging viral hemorrhagic fever (VHF) endemic to China, South Korea, Japan, and Vietnam. Here we characterize the pathogenesis and natural history of disease in IFNAR-/- mice challenged with the HB29 strain of SFTS virus (SFTSV) and demonstrate hallmark features of VHF such as vascular leak and high concentrations of proinflammatory cytokines in blood and tissues. Treatment with FX06, a natural plasmin digest product of fibrin in clinical development as a treatment for vascular leak, reduced vascular permeability associated with SFTSV infection but did not significantly improve survival outcome. Further studies are …


The Importance Of Spatial Data To Open - Access National Archaeological Databases And The Development Of Paleodemography Research, Erick Robinson, Christopher Nicholson, Robert L. Kelly Sep 2019

The Importance Of Spatial Data To Open - Access National Archaeological Databases And The Development Of Paleodemography Research, Erick Robinson, Christopher Nicholson, Robert L. Kelly

Sociology, Social Work and Anthropology Faculty Publications

With generous support from the National Science Foundation, we have spent the past four years developing an archaeological radiocarbon database for the United States. Here, we highlight the importance of spatial data for open-access, national-scale archaeological databases and the development of paleodemography research. We propose a new method for analyzing radiocarbon time series in the context of paleoclimate models. This method forces us to confront one of the central challenges to realizing the full potential of national-scale databases: the quality of the spatial data accompanying radiocarbon dates. We seek to open a national discussion on the use of spatial data …


Exploring The Capacity Of Bacteria For Natural Product Biosynthesis, Ozkan Fidan Aug 2019

Exploring The Capacity Of Bacteria For Natural Product Biosynthesis, Ozkan Fidan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This dissertation is focused on exploring the potential of bacteria for the biosynthesis of natural products with the purposes of generating novel natural product derivatives and of improving the titer of pharmaceutically important natural products.

A wide variety of compounds from various sources have been historically used in the treatment and prevention of diseases. Natural products as a major source of new drugs are extensively explored due to their huge structural diversity and promising biological activities such as antimicrobial, anticancer, antifungal, antiviral and antioxidant properties. For instance, penicillin as an early-discovered antimicrobial agent has saved millions of lives, indicating the …


Biophysical And Structural Characterization Of Shigella Atpase Spa47 Oligomerization Provides Insight Into Type Three Secretion System Activation And Virulence, Jamie L. Burgess Aug 2019

Biophysical And Structural Characterization Of Shigella Atpase Spa47 Oligomerization Provides Insight Into Type Three Secretion System Activation And Virulence, Jamie L. Burgess

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Several bacterial pathogens including Shigella (shigellosis), Escherichia coli (urinary tract infections), Pseudomonas (lung infections), Salmonella (food poisoning), and Yersinia (plague) critically rely on a complex type three secretion system (T3SS) for infection. With the rise in multi-antibiotic resistant strains of several of these pathogens, we turn to the T3SS as a promising target for the development of novel therapeutics. The Dickenson lab at Utah State University has been the first to identify and characterize the ATPase Spa47, the energy source of the Shigella infection system. We show that Spa47 is necessary for proper T3SS formation and function, being ultimately responsible …