Digital Commons Network^™

Improving Nanosatellite Imaging With Adaptive Optics, Anne Marinan, Kerri Cahoy, John Merk, Ruslan Belikov, Eduardo Bendek

Small Satellite Conference

Active and adaptive wavefront control can be useful on space platforms for a variety of observation applications. For example, to achieve high contrast imaging to a level of 1e-10 with a coronagraph (required to image an Earth- like planet around a Sun-like star), space telescopes require high spatial frequency wavefront control systems. To achieve intersatellite links through the atmosphere, wavefront correction is needed to counter the effects of atmospheric turbulence and scintillation. For deployable apertures, active correction is desired to properly align and calibrate optical systems. Deformable mirrors (DMs) are a key element of a wavefront control system, as they …

Cubesat Nighttime Lights, Dee W. Pack, Brian S. Hardy

Small Satellite Conference

Monitoring of visible emissions at night from satellites has evolved into a useful capability for environmental monitoring and mapping the global human footprint. Pioneering work with Defense Meteorological Support Program (DMSP) sensors has been followed by new work with the Visible Infrared Imaging Radiometer Suite (VIIRS), and International Space Station (ISS) photography. We have been investigating the ability of CubeSats to carry out nightlights mapping missions and here present recent results from existing visible wavelength cameras on AeroCube satellites. CubeSat sensors were successfully tasked to image oil industry natural gas flares in the Persian Gulf region, urban areas and other …

Human Observers Differ In Ability To Perceive Insect Diversity, Joseph S. Wilson, Joshua P. Jahner, Matthew L. Forister

Biology Faculty Publications

Human perception of biological variation is an important and understudied issue in the conservation and management of natural resources. Here, we took a novel approach by asking 1152 participants, primarily college biology students, to score examples of insect mimicry by the number of distinct kinds of animals they saw. Latent class analysis successfully separated participants based on their accuracy of perception as well as demographic information and opinions about biodiversity. Contrary to expectations, factors such as childhood experience (growing up in urban, suburban or rural areas) did not affect the ability to see biodiversity as much as political views (location …

General Catalog 2016-2017, Utah State University

University Catalogs

This catalog contains information on the Academic Departments and Programs as well as Course Descriptions for the above school year at Utah State University. To avoid large file downloads, the Academic Departments and Programs information is located in this file. The Course Description information is located in the secondary file.

Trophoblast Major Histocompatibility Complex Class I Expression Is Associated With Immune-Mediated Rejection Of Bovine Fetuses Produced By Cloning, Heloisa M. Rutigliano, Aaron J. Thomas, Amanda Wilhelm, Benjamin R. Sessions, Brady A. Hicks, Donald H. Schlafer, Kenneth L. White, Christopher J. Davies

Animal, Dairy, and Veterinary Science Faculty Publications

Trophoblast cells from bovine somatic cell nuclear transfer (SCNT) conceptuses express major histocompatibility complex class I (MHC-I) proteins early in gestation, and this may be one cause of the significant first-trimester embryonic mortality observed in these pregnancies. MHC-I homozygous-compatible (n = 9), homozygous-incompatible (n = 8), and heterozygous-incompatible (n = 5) SCNT pregnancies were established. The control group consisted of eight pregnancies produced by artificial insemination. Uterine and placental samples were collected on Day 35 ± 1 of pregnancy, and expression of MHC-I, leukocyte markers, and cytokines were examined by immunohistochemistry. Trophoblast cells from all SCNT pregnancies expressed MHC-I, while …

Comparison Of Three Techniques To Identify And Count Individual Animals In Aerial Imagery, Pat A. Terletzky, Robert Douglas Ramsey

Wildland Resources Faculty Publications

Whether a species is rare and requires protection or is overabundant and needs control, an accurate estimate of population size is essential for the development of conservation plans and management goals. Current wildlife surveys are logistically difficult, frequently biased, and time consuming. Therefore, there is a need to provide additional techniques to improve survey methods for censusing wildlife species. We examined three methods to enumerate animals in remotely sensed aerial imagery: manual photo interpretation, an unsupervised classification, and multi- image, multi-step technique. We compared the performance of the three techniques based on the probability of correctly detecting animals, the probability …

Understanding The Semen Evaluation Portion Of The Breeding Soundness Evaluation, C. Kim Chapman, Kerry A. Rood

All Current Publications

This fact sheet explains the semen examination section of the bull breeding soundness evaluation form. It indicates what each category on the form is, why it is important, and what the requirements are for a bull to be considered a satisfactory breeder.

Interseeding Forage Kochia Into Established Crp Grass Stands, Jeffrey E. Banks, Robert L. Newhall, Blair L. Waldron

All Current Publications

This fact sheet is a summary of a research project that documented that interseeding forage kochia into existing CRP can increase its potential use for fall and winter grazing by livestock.

Disease Introduction Is Associated With A Phase Transition In Bighorn Sheep Demographics, Kezia R. Manlove, E. Frances Cassirer, Paul C. Cross, Raina K. Plowright, Peter J. Hudson

Wildland Resources Faculty Publications

Ecological theory suggests that pathogens are capable of regulating or limiting host population dynamics, and this relationship has been empirically established in several settings. However, although studies of childhood diseases were integral to the development of disease ecology, few studies show population limitation by a disease affecting juveniles. Here, we present empirical evidence that disease in lambs constrains population growth in bighorn sheep (Ovis canadensis) based on 45 years of population‐level and 18 years of individual‐level monitoring across 12 populations. While populations generally increased (λ = 1.11) prior to disease introduction, most of these same populations experienced an abrupt change …

Teaching: Natural Or Cultural?, David F. Lancy

Sociology, Social Work and Anthropology Faculty Publications

In this chapter I argue that teaching, as we now understand the term, is historically and cross-culturally very rare. It appears to be unnecessary to transmit culture or to socialize children. Children are, on the other hand, primed by evolution to be avid observers, imitators, players and helpers—roles that reveal the profoundly autonomous and self-directed nature of culture acquisition (Lancy in press a). And yet, teaching is ubiquitous throughout the modern world—at least among the middle to upper class segment of the population. This ubiquity has led numerous scholars to argue for the universality and uniqueness of teaching as a …

Methods For Culturing Retinal Pigment Epithelial Cells: A Review Of Current Protocols And Future Recommendations, Aaron H. Fronk, Elizabeth Vargis

Biological Engineering Faculty Publications

The retinal pigment epithelium is an important part of the vertebrate eye, particularly in studying the causes and possible treatment of age-related macular degeneration. The retinal pigment epithelium is difficult to access in vivo due to its location at the back of the eye, making experimentation with age-related macular degeneration treatments problematic. An alternative to in vivo experimentation is cultivating the retinal pigment epithelium in vitro, a practice that has been going on since the 1970s, providing a wide range of retinal pigment epithelial culture protocols, each producing cells and tissue of varying degrees of similarity to natural retinal pigment …

Pheromone Lure And Trap Color Affects Bycatch In Agricultural Landscapes Of Utah, Lori R. Spears, Chris Looney, Harold Ikerd, Jonathan B. Koch, Terry L. Griswold, James P. Strange, Ricardo A. Ramirez

Biology Faculty Publications

Aerial traps, using combinations of color and attractive lures, are a critical tool for detecting and managing insect pest populations. Yet, despite improvements in trap efficacy, collection of nontarget species (“bycatch”) plagues many insect pest surveys. Bycatch can influence survey effectiveness by reducing the available space for target species and increasing trap screening time, especially in areas where thousands of insects are captured as bycatch in a given season. Additionally, bycatch may negatively impact local nontarget insect populations, including beneficial predators and pollinators. Here, we tested the effect of pheromone lures on bycatch rates of Coccinellidae (Coleoptera), Apoidea (Hymenoptera), and …

Build It, But Will They Come? A Geoscience Cyberinfrastructure Baseline Analsys, Joel Cutcher-Gershenfeld, Karen S. Baker, Nicholas Berente, Dorothy R. Carter, Leslie A. Dechurch, Courtney G. Flint, Gabriel Gershenfeld, Michael Haberman, John Leslie King, Christine Kirkpatrick, Eric Knight, Barbara Lawrence, Spenser Lewis, W. Christopher Lenhardt, Pablo Lopez, Matthew S. Mayernik, Charles Mcelroy, Barbara Mittleman, Et Al.

Sociology, Social Work and Anthropology Faculty Publications

Understanding the earth as a system requires integrating many forms of data from multiple fields. Builders and funders of the cyberinfrastructure designed to enable open data sharing in the geosciences risk a key failure mode: What if geoscientists do not use the cyberinfrastructure to share, discover and reuse data? In this study, we report a baseline assessment of engagement with the NSF EarthCube initiative, an open cyberinfrastructure effort for the geosciences. We find scientists perceive the need for cross-disciplinary engagement and engage where there is organizational or institutional support. However, we also find a possibly imbalanced involvement between cyber and …

A Life-History Perspective On The Demographic Drivers Of Structured Population Dynamics In Changing Environments, David N. Koons, David T. Iles, Michael Schaub, Hal Caswell

Wildland Resources Faculty Publications

Current understanding of life-history evolution and how demographic parameters contribute to population dynamics across species is largely based on assumptions of either constant environments or stationary environmental variation. Meanwhile, species are faced with non-stationary environmental conditions (changing mean, variance, or both) created by climate and landscape change. To close the gap between contemporary reality and demographic theory, we develop a set of transient life table response experiments (LTREs) for decomposing realised population growth rates into contributions from specific vital rates and components of population structure. Using transient LTREs in a theoretical framework, we reveal that established concepts in population biology …

Influence Of Free Water Availability On A Desert Carnivore And Herbivore, Bryan M. Kluever, Eric M. Gese, Stephen Dempsey

Wildland Resources Faculty Publications

Anthropogenic manipulation of finite resources on the landscape to benefit individual species or communities is commonly employed by conservation and management agencies. One such action in arid regions is the construction and maintenance of water developments (i.e., wildlife guzzlers) adding free water on the landscape to buttress local populations, influence animal movements, or affect distributions of certain species of interest. Despite their prevalence, the utility of wildlife guzzlers remains largely untested. We employed a before–after control-impact (BACI) design over a 4-year period on the US Army Dugway Proving Ground, Utah, USA, to determine whether water availability at wildlife guzzlers influenced …

How The Magnitude Of Prey Genetic Variation Alters Predator-Prey Eco-Evolutionary Dynamics, Michael H. Cortez

Mathematics and Statistics Faculty Publications

Evolution can alter the stability and dynamics of ecological communities; for example, prey evolution can drive cyclic dynamics in predator-prey systems that are not possible in the absence of evolution. However, it is unclear how the magnitude of additive genetic variation in the evolving species mediates those effects. In this study, I explore how the magnitude of prey additive genetic variation determines what effects prey evolution has on the dynamics and stability of predator-prey systems. I use linear stability analysis to decompose the stability of a general eco-evolutionary predator-prey model into components representing the stabilities of the ecological and evolutionary …

How Do The At-Risk Rules Apply To A Farm Business?, Jc Hobbs

Rural Tax Education

The majority of farm businesses will not be subject to the at-risk rules. However, when a business is subject to these rules, the deduction of losses will be limited to the amount that the producer has at risk. The amount at risk is the amount the taxpayer could actually lose from the activity. If the at-risk limitation rules do not apply, other rules such as the passive loss rules or the hobby loss rules could still limit loss deductions. The purpose of this article is to explain the at-risk limitations as they apply to both farm and non-farm business activities. …

Involuntary Conversion Of Business Assets, Guido Van Der Hoeven

Rural Tax Education

During the course of operating a farm or ranch, operators will get rid of, lose, or dispose of property used in the business in a variety of ways. Sometimes events beyond the control of the business result in disposition of property. The purpose of this discussion is to illustrate correct income tax reporting when business properties are disposed of due to an involuntary conversion or casualty that may occur suddenly and is beyond management’s control.

This discussion will focus on the involuntary conversion of tangible personal property (i.e., equipment and vehicles), which may be the result of a casualty loss …

The Utah Statesman, July 2016, Utah State University

The Utah Statesman

Utah State University student newspaper July issue.

2016 Utah State University Student Orientation Guide, Utah State University

The Utah Statesman

A special supplemental magazine provided by The Utah Statesman to take a closer look at some of the services and departments available at Utah State University.

Perceptions Of Race-Related Interactions In The Classroom, Lesther A. Papa, E. Murphy, Melanie M. Domenech-Rodriguez

Psychology Faculty Publications

No abstract provided.

The Utah Statesman, June 15, 2016, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

Drab To Fab: Elevated Practices For Active Learning Online, Amanda Roth, Dominique Turnbow

Library Instruction West 2016

This presentation will illustrate how two instructional design librarians tackled teaching the drab topic of plagiarism and elevated it to a fabulous online tutorial. Participants will gain insight into the techniques used to move online instruction from clicking an arrow to get to the next screen and multiple choices quizzes to an enhanced active learning experience that challenges pre-existing thought and builds knew knowledge and skills. Learn how instructional design practices, storyboards, proof of concepts, and technology combine to elevate the online learning experience by giving learners the opportunity to interact with tutorial content through the use of "You Try" …

New Studies Of Children’S Work, Acquisition Of Critical Skills, And Contribution To The Domestic Economy, David F. Lancy

Sociology, Social Work and Anthropology Faculty Publications

In spite of the fact that the very earliest ethnographers who paid any attention to children took note of the “precocity” displayed by children in both learning the household (e.g., caring for a younger sibling) and subsistence (harvesting and processing grain), tasks characteristic of the societies under investigation, the first synthesis and cross-cultural compilation of this large body of descriptive material is quite recent. This first, introductory, article in this collection reviews those efforts to systematize the study of children’s work and leads the reader through a catalog of the major conclusions or generalizations that have emerged from this analysis. …

The Farm Newsletter, Usu Student Organic Farm

USU Student Organic Farm Newsletter

We had a volunteer day this last week on Wednesday when about 12-15 people from a school in Brigham City showed up to help us on the farm. They were there for about three hours and during that time we were able to prepare nearly all of our seed beds and plant about a third of them. We were also able to set up the irrigation sprinklers so that we don't have to water by hand. Some of the remaining planting beds will also be seeded, but the majority are for transplants from the greenhouse. We have been able to …

Utah State Magazine, Summer 2016, Utah State University

Utah State Magazine

The quarterly magazine for friends and alumni of Utah State University.

Effectiveness Of The Toxicant Drc-1339 In Reducing Populations Of Common Ravens In Wyoming, Luke W. Peebles, Michael R. Conover

Wildland Resources Faculty Publications

Common raven (Corvus corax) populations have increased several-fold in the western United States during the past century; these birds cause problems when they kill new-borne lambs and calves and depredate nests of greater sage-grouse (Centrocercus urophasianus). The toxicant DRC-1339 is used by U.S. Department of Agriculture/Animal and Plant Health Inspection Service Wildlife Services to manage common raven populations and reduce the severity of these problems, but it is difficult to determine how many ravens are killed by an application because carcasses are rarely found. We examined the effectiveness of DRC-1339 applications for preventative control of ravens at 3 landfills and …

Time To Say Goodbye (Equine Euthanasia), Karl Hoopes, Holly Mason

All Current Publications

This fact sheet describes the process of euthanasia for horses, including techniques, confirming death, and disposal of body.

Sage Grouse Groceries: Forb Response To Piñon-Juniper Treatments, Jonathan D. Bates, Kirk W. Davies, April Hulet, Richard F. Miller, Bruce Roundy

Articles

Juniper and piñon coniferous woodlands have increased 2- to 10-fold in nine ecoregions spanning the Intermountain Region of the western United States. Control of piñon-juniper woodlands by mechanical treatments and prescribed fire are commonly applied to recover sagebrush steppe rangelands. Recently, the Sage Grouse Initiative has made conifer removal a major part of its program to reestablish sagebrush habitat for sage grouse (Centrocercus urophasianus) and other species. We analyzed data sets from previous and ongoing studies across the Great Basin characterizing cover response of perennial and annual forbs that are consumed by sage grouse to mechanical, prescribed fire, …

Collybolide Is A Novel Biased Agonist Of Κ-Opioid Receptors With Potent Antipruritic Activity, Achla Gupta, Ivone Gomes, Erin N. Bobeck, Amanda K. Fakira, Nicholas P. Massaro, Indrajeet Sharma, Adrien Cavé, Heidi E. Hamm, Joseph Parello, Lakshmi A. Devi

Biology Faculty Publications

Among the opioid receptors, the κ-opioid receptor (κOR) has been gaining considerable attention as a potential therapeutic target for the treatment of complex CNS disorders including depression, visceral pain, and cocaine addiction. With an interest in discovering novel ligands targeting κOR, we searched natural products for unusual scaffolds and identified collybolide (Colly), a nonnitrogenous sesquiterpene from the mushroom Collybia maculata. This compound has a furyl-δ-lactone core similar to that of Salvinorin A (Sal A), another natural product from the plant Salvia divinorum. Characterization of the molecular pharmacological properties reveals that Colly, like Sal A, is a highly potent and selective …